/* ============================================================
   PureFDR 文件净化系统 · 全局样式
   基于 purefdr-website-demo 原型演进；设计 token 见 tokens.css。
   布局原则（方案 §6.3）：少用圆角与阴影，连续深色画布，
   每个区域使用不同的信息节奏。
   ============================================================ */

/* ---------- 基础 ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; overflow-x: clip; scrollbar-gutter: stable; }
body {
  margin: 0;
  overflow-x: hidden;
  overflow-x: clip;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-main);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { color: inherit; }
img { max-width: 100%; display: block; }
/* picture 仅为 WebP 源选择服务，不生成布局盒 */
picture { display: contents; }
::selection { color: #001018; background: var(--cyan); }

/* 原生滚动条 Token 化（深色画布配套；渐进增强，不支持处保留系统样式） */
:root {
  scrollbar-color: #16303f #050b13;
  scrollbar-width: thin;
}
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #050b13; }
::-webkit-scrollbar-thumb { background: #16303f; border: 2px solid #050b13; border-radius: 0; }
::-webkit-scrollbar-thumb:hover { background: #1e4257; }
::-webkit-scrollbar-thumb:active { background: #1ba8c9; }

/* 焦点样式清晰，不仅依赖颜色（方案 §8.3） */
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* 固定导航下的锚点偏移 */
section[id] { scroll-margin-top: calc(var(--header-height) + 12px); }

/* 装饰背景 */
.page-noise {
  position: fixed;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  opacity: .18;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.13'/%3E%3C/svg%3E");
}
.stream-line {
  position: fixed;
  z-index: 12;
  right: 23px;
  top: 88px;
  bottom: 28px;
  width: 1px;
  background: rgba(98, 181, 236, .13);
  pointer-events: none;
}
.stream-line::before,
.stream-line::after {
  content: "";
  position: absolute;
  left: -3px;
  width: 7px;
  height: 7px;
  border: 1px solid rgba(84, 214, 255, .6);
  background: var(--bg);
}
.stream-line::before { top: 0; }
.stream-line::after { bottom: 0; }
.stream-line i {
  position: absolute;
  left: -2px;
  top: var(--scroll-progress, 0%);
  width: 5px;
  height: 38px;
  transform: translateY(-50%);
  background: linear-gradient(transparent, var(--cyan), transparent);
  box-shadow: 0 0 14px var(--cyan);
}

.section-shell { width: var(--container); margin: 0 auto; }

/* 区域进入动画（克制，仅 transform/opacity）；仅在 JS 可用时隐藏，无 JS 降级直接可见 */
html.js .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s ease, transform .8s cubic-bezier(.2, .7, .2, 1);
}
html.js .reveal.visible { opacity: 1; transform: none; }

/* 离开视口时暂停重动画（由 JS IntersectionObserver 切换） */
.anim-paused *, .anim-paused *::before, .anim-paused *::after {
  animation-play-state: paused !important;
}

/* ---------- 通用按钮 ---------- */
.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  padding: 0 21px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 650;
  cursor: pointer;
  transition: transform var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
}
.button:hover { transform: translateY(-2px); }
.button-primary {
  color: #00121c;
  background: var(--cyan);
  box-shadow: 0 12px 38px rgba(37, 216, 255, .13);
}
.button-primary:hover { background: #6fe4ff; }
.button-primary span { font-size: 17px; }
.button-text { padding-left: 0; color: #d4e2ea; }
.play-mini {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(130, 210, 255, .42);
  border-radius: 50%;
  color: var(--cyan);
  font-size: 10px;
}

/* ---------- 顶部导航（方案 §5.1） ---------- */
.site-header {
  position: fixed;
  z-index: 50;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 max(38px, calc((100vw - 1480px) / 2));
  border-bottom: 1px solid rgba(132, 182, 220, .13);
  background: rgba(3, 7, 13, .72);
  backdrop-filter: blur(18px);
  transition: background var(--transition-base), height var(--transition-base);
}
.site-header.scrolled {
  height: 68px;
  background: rgba(3, 7, 13, .92);
  border-bottom-color: rgba(132, 182, 220, .24);
}
.brand { display: inline-flex; align-items: center; width: max-content; gap: 10px; }
.brand-mark {
  width: 31px;
  height: 31px;
  fill: none;
  stroke: var(--cyan);
  stroke-width: 1.6;
  filter: drop-shadow(0 0 7px rgba(37, 216, 255, .42));
}
.brand-mark path:last-child { stroke: var(--green); }
.brand > span { font-size: 19px; font-weight: 750; letter-spacing: -.02em; }
.brand small {
  padding-left: 10px;
  border-left: 1px solid var(--line);
  color: #9fb1bf;
  font-size: 12px;
}
.desktop-nav { display: flex; align-items: center; gap: 36px; }
.desktop-nav a {
  position: relative;
  color: #b9c8d3;
  font-size: 14px;
  transition: color var(--transition-fast);
}
.desktop-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -10px;
  height: 1px;
  background: var(--cyan);
  transition: right var(--transition-base);
}
.desktop-nav a:hover { color: #fff; }
.desktop-nav a:hover::after { right: 0; }
.header-cta {
  justify-self: end;
  padding: 11px 15px;
  border: 1px solid rgba(97, 205, 255, .35);
  font-size: 13px;
  background: rgba(25, 132, 203, .08);
}
.header-cta span { color: var(--cyan); margin-left: 12px; }
.menu-toggle, .mobile-nav { display: none; }

/* 无 JS 降级导航（noscript）：深色半透明条，与站点暗色基调一致 */
.noscript-nav {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 28px;
  width: 100%; margin-top: 14px; padding: 12px 18px;
  border: 1px solid var(--line); background: rgba(9, 15, 28, .72);
}
.noscript-nav a { font-size: 13px; color: var(--muted); text-decoration: none; }
.noscript-nav a:hover { color: var(--text); }
.noscript-nav .noscript-cta { margin-left: auto; color: var(--cyan); }

/* ---------- 首屏（方案 §5.2） ---------- */
.hero {
  position: relative;
  min-height: 860px;
  padding-top: 132px;
}
/* 左侧品牌锁定区 + 右侧文件净化流程 */
.hero-body {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: minmax(400px, .88fr) minmax(580px, 1.12fr);
  align-items: center;
  gap: 54px;
}
.hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0;
  bottom: 0;
  left: calc(50% - 50vw);
  width: 100vw;
  background:
    radial-gradient(circle at 72% 47%, rgba(21, 127, 203, .16), transparent 34%),
    radial-gradient(circle at 56% 42%, rgba(37, 216, 255, .07), transparent 24%),
    linear-gradient(90deg, rgba(3, 7, 13, .98) 18%, rgba(3, 7, 13, .2) 80%);
}
.hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  top: var(--header-height);
  bottom: 0;
  left: calc(50% - 50vw);
  width: 100vw;
  opacity: .18;
  background-image:
    linear-gradient(rgba(79, 143, 181, .18) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79, 143, 181, .18) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(to right, transparent, black 48%, transparent 96%);
}
.hero-copy { position: relative; z-index: 3; min-width: 0; }
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 36px;
  color: var(--cyan);
  font: 10px/1.4 var(--font-ui);
  letter-spacing: .2em;
  text-transform: uppercase;
}
.hero-eyebrow i { width: 42px; height: 1px; flex: none; background: var(--cyan); }
.hero-wordmark {
  color: #e8f3fa;
  font-size: clamp(66px, 6.6vw, 98px);
  line-height: .86;
  font-weight: 780;
  letter-spacing: -.075em;
}
.hero h1 {
  position: relative;
  z-index: 3;
  margin: 24px 0 0;
  color: var(--cyan);
  font-size: clamp(44px, 4.6vw, 64px);
  line-height: 1.08;
  font-weight: 720;
  white-space: nowrap;
}
.hero-tagline {
  margin: 34px 0 0;
  color: #a9bdca;
  font-size: 18px;
  line-height: 1.65;
  font-weight: 520;
}
.hero-intro {
  max-width: 100%;
  margin: 16px 0 0;
  color: #8299a9;
  font-size: 15px;
  line-height: 1.85;
}
.hero-actions { display: flex; align-items: center; gap: 31px; margin-top: 30px; }
.hero-proof {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  max-width: 42em;
  margin: 38px 0 0;
  border: 1px solid var(--line);
  background: rgba(7, 24, 37, .42);
}
.hero-proof > div { min-width: 0; padding: 17px 12px 15px; }
.hero-proof > div + div { border-left: 1px solid var(--line); }
.hero-proof dt { color: var(--cyan); font-size: 14px; line-height: 1.35; font-weight: 680; white-space: nowrap; }
.hero-proof dd { margin: 7px 0 0; color: #617d8e; font-size: 9px; line-height: 1.5; }

.hero-system {
  position: relative;
  height: 625px;
  border: 1px solid var(--line);
  background: rgba(4, 12, 21, .46);
  box-shadow: inset 0 0 70px rgba(15, 85, 137, .1), 0 30px 100px rgba(0, 0, 0, .42);
}
.hero-system::before, .hero-system::after {
  content: "";
  position: absolute;
  width: 28px;
  height: 28px;
  border-color: var(--cyan);
  opacity: .52;
}
.hero-system::before { left: -1px; top: -1px; border-left: 1px solid; border-top: 1px solid; }
.hero-system::after { right: -1px; bottom: -1px; border-right: 1px solid; border-bottom: 1px solid; }
.system-topline, .system-status {
  height: 45px;
  display: flex;
  align-items: center;
  padding: 0 18px;
  color: #718a9c;
  font: 10px/1 var(--font-ui);
}
.system-topline { letter-spacing: .14em; }
.system-topline { justify-content: space-between; border-bottom: 1px solid var(--line); }
.live { color: #91b5c9; }
.live i {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green);
  animation: blink 1.8s infinite;
}
.pipeline-canvas {
  position: relative;
  height: 534px;
  overflow: hidden;
  background: radial-gradient(circle at 54% 48%, rgba(33, 174, 226, .1), transparent 31%);
}
.pipeline-canvas::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .3;
  background-image:
    linear-gradient(rgba(87, 157, 197, .11) 1px, transparent 1px),
    linear-gradient(90deg, rgba(87, 157, 197, .11) 1px, transparent 1px);
  background-size: 32px 32px;
}
/* ---------- 首屏净化剧场（复刻产品「内容净化工场」剧场叙事，方案 §5.2 第四轮） ---------- */
.hud-corner { position: absolute; width: 14px; height: 14px; border: 1px solid rgba(98, 211, 255, .48); pointer-events: none; }
.hc-tl { left: 9px; top: 9px; border-right: 0; border-bottom: 0; }
.hc-tr { right: 9px; top: 9px; border-left: 0; border-bottom: 0; }
.hc-bl { left: 9px; bottom: 9px; border-right: 0; border-top: 0; }
.hc-br { right: 9px; bottom: 9px; border-left: 0; border-top: 0; }

/* 顶部 5 段相位条：未达灰 / 激活青（进度条时长与相位一致）/ 完成绿 */
.th-ribbon { position: absolute; left: 18px; right: 18px; top: 12px; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 6px; }
.th-seg { position: relative; padding: 6px 8px 10px; border: 1px solid rgba(87, 157, 197, .22); background: rgba(8, 22, 35, .5); transition: border-color .4s, background .4s; }
.th-seg b { display: block; color: #5f7c90; font: 400 9px var(--font-ui); letter-spacing: .14em; transition: color .4s; }
.th-seg span { display: block; margin-top: 2px; color: #8fa9bb; font: 10px var(--font-ui); letter-spacing: .04em; }
.th-seg small { display: block; margin-top: 2px; color: #486273; font: 8px/1.5 var(--font-ui); }
.th-seg i { position: absolute; left: 0; bottom: -1px; width: 100%; height: 2px; background: var(--cyan); transform: scaleX(0); transform-origin: left; }
.th-canvas[data-phase="p1"] .th-seg:nth-child(1),
.th-canvas[data-phase="p2"] .th-seg:nth-child(2),
.th-canvas[data-phase="p3"] .th-seg:nth-child(3),
.th-canvas[data-phase="p4"] .th-seg:nth-child(4),
.th-canvas[data-phase="p5"] .th-seg:nth-child(5) { border-color: rgba(98, 211, 255, .55); background: rgba(23, 58, 86, .35); }
.th-canvas[data-phase="p1"] .th-seg:nth-child(1) b,
.th-canvas[data-phase="p2"] .th-seg:nth-child(2) b,
.th-canvas[data-phase="p3"] .th-seg:nth-child(3) b,
.th-canvas[data-phase="p4"] .th-seg:nth-child(4) b,
.th-canvas[data-phase="p5"] .th-seg:nth-child(5) b { color: var(--cyan); }
.th-canvas[data-phase="p2"] .th-seg:nth-child(-n+1),
.th-canvas[data-phase="p3"] .th-seg:nth-child(-n+2),
.th-canvas[data-phase="p4"] .th-seg:nth-child(-n+3),
.th-canvas[data-phase="p5"] .th-seg:nth-child(-n+4),
.th-canvas[data-phase="static"] .th-seg { border-color: rgba(114, 255, 208, .3); }
.th-canvas[data-phase="p2"] .th-seg:nth-child(-n+1) b,
.th-canvas[data-phase="p3"] .th-seg:nth-child(-n+2) b,
.th-canvas[data-phase="p4"] .th-seg:nth-child(-n+3) b,
.th-canvas[data-phase="p5"] .th-seg:nth-child(-n+4) b,
.th-canvas[data-phase="static"] .th-seg b { color: var(--green); }
.th-canvas[data-phase="p2"] .th-seg:nth-child(-n+1) i,
.th-canvas[data-phase="p3"] .th-seg:nth-child(-n+2) i,
.th-canvas[data-phase="p4"] .th-seg:nth-child(-n+3) i,
.th-canvas[data-phase="p5"] .th-seg:nth-child(-n+4) i,
.th-canvas[data-phase="static"] .th-seg i { transform: scaleX(1); background: var(--green); }
.th-canvas[data-phase="p1"] .th-seg:nth-child(1) i { animation: thProg 1.2s linear forwards; }
.th-canvas[data-phase="p2"] .th-seg:nth-child(2) i { animation: thProg 1.6s linear forwards; }
.th-canvas[data-phase="p3"] .th-seg:nth-child(3) i { animation: thProg 2.8s linear forwards; }
.th-canvas[data-phase="p4"] .th-seg:nth-child(4) i { animation: thProg 1.9s linear forwards; }
.th-canvas[data-phase="p5"] .th-seg:nth-child(5) i { animation: thProg 1.4s linear forwards; }
@keyframes thProg { from { transform: scaleX(0); } to { transform: scaleX(1); } }

/* 左侧来源队列：当前文件 ▶ 高亮，后 2 项渐暗 */
.th-queue { position: absolute; left: 18px; top: 98px; width: 168px; }
.th-queue-title { color: #5f7c90; font: 9px var(--font-ui); letter-spacing: .16em; }
.th-q-item { display: flex; align-items: center; gap: 6px; margin-top: 8px; padding: 6px 8px; border: 1px solid rgba(87, 157, 197, .2); font: 9px var(--font-ui); opacity: .35; transition: opacity .4s, border-color .4s; }
.th-q-item.current { opacity: 1; border-color: rgba(98, 211, 255, .5); background: rgba(23, 58, 86, .4); }
.th-q-item i { width: 10px; color: var(--cyan); font-style: normal; }
.th-q-item span { overflow: hidden; color: #b8d9ec; text-overflow: ellipsis; white-space: nowrap; }
.th-q-item em { margin-left: auto; color: #5f7c90; font-style: normal; }

/* 左右虚线车道：p1/p2 左入（青），p3-p5 右出（绿） */
.th-lane { position: absolute; top: 96px; bottom: 92px; width: 1px; background: repeating-linear-gradient(180deg, rgba(98, 211, 255, .4) 0 6px, transparent 6px 12px); opacity: .18; transition: opacity .4s; pointer-events: none; }
.th-lane-l { left: 208px; }
.th-lane-r { right: 208px; }
.th-canvas[data-phase="p1"] .th-lane-l,
.th-canvas[data-phase="p2"] .th-lane-l { opacity: 1; animation: laneDown 1s linear infinite; }
.th-canvas[data-phase="p3"] .th-lane-r,
.th-canvas[data-phase="p4"] .th-lane-r,
.th-canvas[data-phase="p5"] .th-lane-r { opacity: 1; background: repeating-linear-gradient(180deg, rgba(114, 255, 208, .45) 0 6px, transparent 6px 12px); animation: laneDown 1s linear infinite; }
@keyframes laneDown { from { background-position-y: 0; } to { background-position-y: 12px; } }

/* 中央舞台：进出场均由 JS 类驱动（.th-exiting / .th-entering），不绑相位选择器——
   换届在 p6 内完成「旧文件滑出 → 换新 → 新文件入场」，p1 开场即居中待命，扫描束拿满时长 */
.th-stage { position: absolute; left: 50%; top: 54%; width: 0; height: 0; }
.th-canvas[data-phase="boot"] .th-stage { opacity: 0; }
.th-canvas.th-exiting .th-stage { animation: thExit .6s ease both; }
.th-canvas.th-entering .th-stage { animation: thEnter .6s ease both; }
@keyframes thExit { from { transform: none; opacity: 1; } to { transform: translateX(420px); opacity: 0; } }
@keyframes thEnter { from { transform: translateX(-120px); opacity: 0; } to { transform: none; opacity: 1; } }

/* 文件壳：中性玻璃 + 青描边；p3 净化重构起转绿 */
.th-file { position: absolute; left: -34px; top: -46px; width: 68px; text-align: center; transition: filter .5s; }
.th-icon { width: 56px; height: 66px; }
.tf-body { fill: rgba(23, 58, 86, .5); stroke: rgba(98, 211, 255, .78); stroke-width: 1.4; transition: fill .5s, stroke .5s; }
.tf-fold { fill: rgba(98, 211, 255, .16); stroke: rgba(98, 211, 255, .78); stroke-width: 1.2; transition: fill .5s, stroke .5s; }
.tf-lines { fill: none; stroke: rgba(120, 190, 228, .4); stroke-width: 1.2; transition: stroke .5s; }
.th-badge { position: absolute; left: 22px; top: 48px; padding: 1px 6px; border: 1px solid rgba(98, 211, 255, .6); background: rgba(8, 22, 35, .92); color: #cfeeff; font: 8px var(--font-ui); letter-spacing: .08em; transition: border-color .5s, color .5s; }
.th-filemeta { margin-top: 6px; }
.th-filemeta b { display: block; color: #cfeeff; font: 400 9px var(--font-ui); white-space: nowrap; }
.th-filemeta small { color: #5f7c90; font: 8px var(--font-ui); white-space: nowrap; }
.th-corner { position: absolute; right: -12px; top: -10px; padding: 1px 5px; border: 1px solid rgba(98, 211, 255, .45); background: rgba(8, 22, 35, .9); color: var(--cyan); font: 8px var(--font-ui); letter-spacing: .1em; }
.th-canvas[data-phase="p3"] .tf-body,
.th-canvas[data-phase="p4"] .tf-body,
.th-canvas[data-phase="p5"] .tf-body,
.th-canvas[data-phase="static"] .tf-body { fill: rgba(20, 64, 52, .5); stroke: rgba(114, 255, 208, .85); }
.th-canvas[data-phase="p3"] .tf-fold,
.th-canvas[data-phase="p4"] .tf-fold,
.th-canvas[data-phase="p5"] .tf-fold,
.th-canvas[data-phase="static"] .tf-fold { fill: rgba(114, 255, 208, .16); stroke: rgba(114, 255, 208, .85); }
.th-canvas[data-phase="p3"] .tf-lines,
.th-canvas[data-phase="p4"] .tf-lines,
.th-canvas[data-phase="p5"] .tf-lines,
.th-canvas[data-phase="static"] .tf-lines { stroke: rgba(114, 255, 208, .45); }
.th-canvas[data-phase="p3"] .th-badge,
.th-canvas[data-phase="p4"] .th-badge,
.th-canvas[data-phase="p5"] .th-badge,
.th-canvas[data-phase="static"] .th-badge { border-color: rgba(114, 255, 208, .6); color: #d8fff0; }
.th-canvas[data-phase="p3"] .th-file,
.th-canvas[data-phase="p4"] .th-file,
.th-canvas[data-phase="p5"] .th-file,
.th-canvas[data-phase="static"] .th-file { filter: drop-shadow(0 0 12px rgba(114, 255, 208, .2)); }
/* p3 相位内串行：前段威胁飞散（0-1.2s），后段安全组件收拢 + 壳转绿（delay 1.2s） */
.th-canvas[data-phase="p3"] .tf-body,
.th-canvas[data-phase="p3"] .tf-fold,
.th-canvas[data-phase="p3"] .tf-lines,
.th-canvas[data-phase="p3"] .th-badge,
.th-canvas[data-phase="p3"] .th-file { transition-delay: 1.2s; }
/* 新文件在 p5 后半段入场时保持中性青，不继承 p5 的绿色验证态（置于绿色规则之后，同优先级靠后胜出） */
.th-canvas.th-entering .tf-body { fill: rgba(23, 58, 86, .5); stroke: rgba(98, 211, 255, .78); }
.th-canvas.th-entering .tf-fold { fill: rgba(98, 211, 255, .16); stroke: rgba(98, 211, 255, .78); }
.th-canvas.th-entering .tf-lines { stroke: rgba(120, 190, 228, .4); }
.th-canvas.th-entering .th-badge { border-color: rgba(98, 211, 255, .6); color: #cfeeff; }
.th-canvas.th-entering .th-file { filter: none; }

/* 组件层：散开坐标经 nth-child 自定义属性下发（CSP 禁止 inline style）；
   p3 净化重构：威胁组件先飞向隔离区消散（0-1.2s），安全组件 delay 后 calc(× .55) 收拢重组；p4 起全隐 */
.th-comps { position: absolute; left: 0; top: 0; }
.th-comp { position: absolute; left: 0; top: 0; display: flex; align-items: flex-start; gap: 6px; padding: 4px 7px; border: 1px solid rgba(98, 211, 255, .32); background: rgba(8, 22, 35, .88); white-space: nowrap; opacity: 0; transform: translate(var(--sx), var(--sy)) scale(.85); transition: transform .8s cubic-bezier(.22, .8, .3, 1), opacity .6s ease, border-color .5s, box-shadow .5s; }
.th-comp:nth-child(1) { --sx: -150px; --sy: -96px; }
.th-comp:nth-child(2) { --sx: 40px; --sy: -96px; }
.th-comp:nth-child(3) { --sx: -150px; --sy: -6px; }
.th-comp:nth-child(4) { --sx: 40px; --sy: -6px; }
.th-comp:nth-child(5) { --sx: -58px; --sy: -134px; }
.th-comp:nth-child(6) { --sx: -128px; --sy: 58px; }
.th-comp:nth-child(7) { --sx: 8px; --sy: 58px; }
.tc-icon { width: 12px; height: 12px; flex: none; margin-top: 1px; fill: none; stroke: rgba(120, 190, 228, .7); stroke-width: 1; }
.th-comp.threat .tc-icon { stroke: var(--risk); }
.tc-text { display: grid; gap: 1px; }
.tc-label { color: #b8d9ec; font: 9px var(--font-ui); letter-spacing: .03em; }
.tc-hex { display: none; color: #47647a; font: 7px var(--font-ui); letter-spacing: .04em; }
.tc-threat { display: none; color: var(--risk); font: 8px var(--font-ui); }
.tc-code { display: none; padding: 1px 4px; border-left: 1px solid rgba(255, 141, 113, .5); background: rgba(46, 20, 22, .6); color: #ffb3a1; font: 7px var(--font-ui); }
.th-canvas[data-phase="p2"] .th-comp,
.th-canvas[data-phase="p3"] .th-comp { opacity: 1; transform: translate(var(--sx), var(--sy)) scale(1); }
.th-canvas[data-phase="p2"] .tc-hex,
.th-canvas[data-phase="p3"] .tc-hex { display: block; }
.th-canvas[data-phase="p2"] .tc-threat,
.th-canvas[data-phase="p2"] .tc-code { display: block; }
.th-canvas[data-phase="p2"] .th-comp.threat { border-color: rgba(255, 141, 113, .6); box-shadow: 0 0 14px rgba(255, 141, 113, .35); }
.th-canvas[data-phase="p3"] .th-comp:not(.threat) { transform: translate(calc(var(--sx) * .55), calc(var(--sy) * .55)) scale(.9); transition-delay: 1.2s; }
.th-canvas[data-phase="p3"] .th-comp.threat,
.th-canvas[data-phase="p4"] .th-comp.threat,
.th-canvas[data-phase="p5"] .th-comp.threat,
.th-canvas[data-phase="static"] .th-comp.threat { opacity: 0; transform: translate(230px, 110px) scale(.4); }
.th-canvas[data-phase="p4"] .th-comp:not(.threat),
.th-canvas[data-phase="p5"] .th-comp:not(.threat),
.th-canvas[data-phase="static"] .th-comp:not(.threat) { opacity: 0; }

/* p1 扫描束 / p2 虚线分析环 */
.th-scan { position: absolute; left: -90px; top: -110px; width: 180px; height: 220px; overflow: hidden; opacity: 0; pointer-events: none; }
.th-scan::before { content: ""; position: absolute; top: 0; bottom: 0; left: 0; width: 2px; background: linear-gradient(180deg, transparent, var(--cyan), transparent); box-shadow: 0 0 12px var(--cyan); }
.th-canvas[data-phase="p1"] .th-scan { opacity: 1; }
.th-canvas[data-phase="p1"] .th-scan::before { animation: scanX 1.1s ease-in-out; }
@keyframes scanX { from { left: 0; } to { left: 100%; } }
.th-rings { position: absolute; left: 0; top: -6px; width: 150px; height: 150px; transform: translate(-50%, -50%); opacity: 0; transition: opacity .5s; pointer-events: none; }
.th-rings::before, .th-rings::after { content: ""; position: absolute; inset: 0; border: 1px dashed rgba(98, 211, 255, .35); border-radius: 50%; }
.th-rings::after { inset: 18px; border-color: rgba(98, 211, 255, .2); }
.th-canvas[data-phase="p2"] .th-rings { opacity: 1; animation: thSpin 6s linear infinite; }
@keyframes thSpin { from { transform: translate(-50%, -50%) rotate(0); } to { transform: translate(-50%, -50%) rotate(360deg); } }

/* p4 绿色验证：对勾描画 + VERIFIED 徽章 + 校验流水逐条 */
.th-seal { position: absolute; left: 0; top: -16px; width: 120px; height: 120px; transform: translate(-50%, -50%); opacity: 0; pointer-events: none; }
.th-seal-svg { width: 120px; height: 120px; }
.ts-ring { fill: none; stroke: var(--green); stroke-width: 1.6; stroke-dasharray: 327; stroke-dashoffset: 327; }
.ts-check { fill: none; stroke: var(--green); stroke-width: 2.4; stroke-dasharray: 70; stroke-dashoffset: 70; }
.th-canvas[data-phase="p4"] .th-seal,
.th-canvas[data-phase="static"] .th-seal { opacity: 1; }
.th-canvas[data-phase="p4"] .ts-ring { animation: ringDraw .9s ease forwards; }
.th-canvas[data-phase="p4"] .ts-check { animation: checkDraw .5s ease .7s forwards; }
.th-canvas[data-phase="static"] .ts-ring,
.th-canvas[data-phase="static"] .ts-check { stroke-dashoffset: 0; }
@keyframes ringDraw { to { stroke-dashoffset: 0; } }
@keyframes checkDraw { to { stroke-dashoffset: 0; } }
.th-seal-badge { position: absolute; left: 50%; bottom: -6px; padding: 2px 8px; border: 1px solid rgba(114, 255, 208, .55); background: rgba(8, 22, 35, .92); color: var(--green); font: 9px var(--font-ui); letter-spacing: .14em; opacity: 0; transform: translateX(-50%); transition: opacity .5s ease 1s; }
.th-canvas[data-phase="p4"] .th-seal-badge,
.th-canvas[data-phase="static"] .th-seal-badge { opacity: 1; }
.th-checklist { position: absolute; left: 0; top: 66px; display: grid; gap: 4px; transform: translateX(-50%); }
.th-check { display: flex; align-items: center; gap: 6px; color: #9fc6dd; font: 9px var(--font-ui); white-space: nowrap; opacity: 0; transform: translateX(-6px); transition: opacity .4s ease, transform .4s ease; }
.th-check i { position: relative; width: 8px; height: 8px; border: 1px solid rgba(114, 255, 208, .5); }
.th-check i::after { content: ""; position: absolute; left: 2px; top: 0; width: 3px; height: 5px; border-right: 1.5px solid var(--green); border-bottom: 1.5px solid var(--green); transform: rotate(40deg); }
.th-canvas[data-phase="p4"] .th-check,
.th-canvas[data-phase="static"] .th-check { opacity: 1; transform: none; }
.th-canvas[data-phase="p4"] .th-check:nth-child(2) { transition-delay: .3s; }
.th-canvas[data-phase="p4"] .th-check:nth-child(3) { transition-delay: .6s; }
.th-canvas[data-phase="p4"] .th-check:nth-child(4) { transition-delay: .9s; }

/* 右上相位信息卡：KV 行逐条入场，danger 红 / ok 绿 */
.th-infocard { position: absolute; right: 18px; top: 98px; width: 198px; padding: 10px 12px; border: 1px solid rgba(87, 157, 197, .28); background: rgba(6, 17, 28, .78); }
.th-info-title { color: var(--cyan); font: 10px var(--font-ui); letter-spacing: .08em; }
.th-info-row { display: flex; justify-content: space-between; gap: 10px; margin-top: 7px; font: 9px var(--font-ui); animation: thRow .4s ease both; }
.th-info-row:nth-child(2) { animation-delay: .08s; }
.th-info-row:nth-child(3) { animation-delay: .16s; }
.th-info-row:nth-child(4) { animation-delay: .24s; }
.th-info-row span { color: #6e8798; }
.th-info-row b { color: #b8d9ec; font-weight: 400; text-align: right; }
.th-info-row.danger b { color: var(--risk); }
.th-info-row.ok b { color: var(--green); }
@keyframes thRow { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* 右侧「本轮净化」绿标签（p3 净化重构起，脉冲） */
.th-purified { position: absolute; right: 18px; top: 306px; padding: 5px 10px; border: 1px solid rgba(114, 255, 208, .45); background: rgba(20, 64, 52, .4); color: #8ff5cf; font: 9px var(--font-ui); letter-spacing: .06em; opacity: 0; transform: translateX(10px); transition: opacity .5s, transform .5s; }
.th-canvas[data-phase="p3"] .th-purified,
.th-canvas[data-phase="p4"] .th-purified,
.th-canvas[data-phase="p5"] .th-purified,
.th-canvas[data-phase="static"] .th-purified { opacity: 1; transform: none; }
.th-canvas[data-phase="p3"] .th-purified { animation: thPulse 1.6s ease infinite; }
@keyframes thPulse { 0%, 100% { box-shadow: 0 0 0 rgba(114, 255, 208, 0); } 50% { box-shadow: 0 0 14px rgba(114, 255, 208, .3); } }

/* 右下隔离区：p3 起接收威胁清单（命中脉冲） */
.quarantine-slot {
  position: absolute;
  right: 20px;
  bottom: 76px;
  max-width: 250px;
  padding: 8px 12px;
  border: 1px solid rgba(255, 141, 113, .42);
  background: rgba(46, 20, 22, .62);
  opacity: .38;
  transform: translateY(8px);
  transition: opacity .5s, transform .5s;
}
.quarantine-slot span { display: block; color: var(--risk); font: 9px var(--font-ui); letter-spacing: .16em; }
.quarantine-slot b { display: block; margin-top: 4px; color: #d99c8d; font: 400 9px/1.5 var(--font-ui); }
.th-canvas[data-phase="p3"] .quarantine-slot,
.th-canvas[data-phase="p4"] .quarantine-slot,
.th-canvas[data-phase="p5"] .quarantine-slot,
.th-canvas[data-phase="static"] .quarantine-slot { opacity: 1; transform: none; }
.th-canvas[data-phase="p3"] .quarantine-slot { animation: slotHit 1.6s ease infinite; }
@keyframes slotHit { 0%, 100% { box-shadow: 0 0 0 rgba(255, 141, 113, 0); } 50% { box-shadow: 0 0 22px rgba(255, 141, 113, .4); } }
.stack-telemetry {
  position: absolute;
  left: 24px;
  bottom: 18px;
  display: grid;
  gap: 6px;
  font: 10px var(--font-ui);
}
.st-line b { margin-right: 9px; color: var(--cyan); font-weight: 400; }
.st-line span { color: #9fc6dd; letter-spacing: .05em; }
.st-line.dim span { color: #6e8798; letter-spacing: normal; }
.system-status { gap: 19px; border-top: 1px solid var(--line); }
.system-status span { color: #8198a8; white-space: nowrap; }
.system-status i { display: inline-block; width: 5px; height: 5px; margin-right: 6px; border-radius: 50%; }
.status-blue { background: var(--blue); }
.status-cyan { background: var(--cyan); }
.status-green { background: var(--green); }
.system-status small { margin-left: auto; color: #4f6778; font-size: 10px; }
.hero-scroll {
  position: absolute;
  left: 0;
  bottom: 31px;
  display: flex;
  align-items: center;
  gap: 13px;
  color: #4d6879;
  font: 9px var(--font-ui);
  letter-spacing: .2em;
  transform: rotate(-90deg) translateY(-100%);
  transform-origin: left bottom;
}
.hero-scroll i { width: 64px; height: 1px; background: linear-gradient(90deg, var(--cyan), transparent); }

/* ---------- 首屏 PUREFDR — SANITIZE 品牌级流程概览 ---------- */
.sanitize-overview {
  height: 590px;
  overflow: hidden;
  border: 1px solid rgba(98, 211, 255, .28);
  background:
    linear-gradient(rgba(87, 157, 197, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(87, 157, 197, .055) 1px, transparent 1px),
    radial-gradient(circle at 50% 48%, rgba(25, 132, 203, .12), transparent 43%),
    #06111c;
  background-size: 28px 28px, 28px 28px, auto, auto;
  box-shadow: 0 28px 70px rgba(0, 0, 0, .28);
}
.sanitize-head {
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  border-bottom: 1px solid var(--line);
  background: rgba(4, 12, 20, .88);
}
.sanitize-head > div { display: flex; align-items: baseline; gap: 12px; }
.sanitize-head b { color: #d9eff9; font: 600 11px var(--font-ui); letter-spacing: .14em; }
.sanitize-head span { color: #5f7c90; font: 9px var(--font-ui); letter-spacing: .08em; }
.sanitize-play {
  padding: 7px 12px;
  border: 1px solid rgba(98, 211, 255, .3);
  background: rgba(25, 132, 203, .08);
  color: #99cce5;
  font: 9px var(--font-ui);
  letter-spacing: .12em;
  cursor: pointer;
}
.sanitize-play:hover, .sanitize-play:focus-visible { border-color: var(--cyan); color: var(--cyan); outline: 0; }
.sanitize-play:disabled { cursor: default; opacity: .55; }
.sanitize-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  padding: 12px 16px 17px;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 15, 25, .74);
}
.sanitize-track::before {
  content: "";
  position: absolute;
  left: 9%;
  right: 9%;
  bottom: 12px;
  height: 1px;
  background: linear-gradient(90deg, rgba(98, 211, 255, .12), rgba(98, 211, 255, .65), rgba(98, 211, 255, .12));
}
.sanitize-track button {
  position: relative;
  min-width: 0;
  padding: 0 10px 12px;
  border: 0;
  background: transparent;
  color: #688193;
  text-align: left;
  cursor: pointer;
}
.sanitize-track button::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 7px;
  width: 7px;
  height: 7px;
  border: 1px solid #47748e;
  background: #06111c;
  border-radius: 50%;
  transform: translateX(-50%);
  transition: border-color .45s, background .45s, box-shadow .45s;
}
.sanitize-track button b, .sanitize-track button span, .sanitize-track button small { display: block; }
.sanitize-track button b { color: #527286; font: 600 9px var(--font-ui); letter-spacing: .14em; }
.sanitize-track button span { margin-top: 3px; color: #9ab2c1; font: 600 10px var(--font-ui); }
.sanitize-track button small { margin-top: 2px; overflow: hidden; color: #526b7c; font: 8px var(--font-ui); text-overflow: ellipsis; white-space: nowrap; }
.sanitize-track button.complete::after { border-color: rgba(37, 216, 255, .72); background: var(--cyan); box-shadow: 0 0 11px rgba(37, 216, 255, .48); }
.sanitize-track button.active b, .sanitize-track button.active span { color: var(--cyan); }
.sanitize-track button.active::after { border-color: var(--cyan); background: #d8f8ff; box-shadow: 0 0 0 4px rgba(37, 216, 255, .14), 0 0 18px rgba(37, 216, 255, .7); }
.sanitize-track button.active i {
  position: absolute;
  left: 50%;
  bottom: -22px;
  width: 1px;
  height: 24px;
  background: linear-gradient(var(--cyan), transparent);
}
.sanitize-track button.active i::after {
  content: "";
  position: absolute;
  left: -3px;
  bottom: -1px;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  transform: rotate(45deg);
  box-shadow: 0 0 10px var(--cyan);
}
.sanitize-workspace {
  height: 324px;
  display: grid;
  grid-template-columns: minmax(132px, .82fr) 36px minmax(220px, 1.45fr) 36px minmax(145px, .9fr);
  align-items: stretch;
  padding: 24px 16px 12px;
}
.sanitize-zone { position: relative; min-width: 0; border: 1px solid rgba(98, 211, 255, .18); background: rgba(5, 17, 28, .76); }
.sanitize-zone-label { display: block; padding: 10px 11px; border-bottom: 1px solid rgba(98, 211, 255, .13); color: #648095; font: 8px var(--font-ui); letter-spacing: .1em; }
.sanitize-file { display: grid; justify-items: center; gap: 6px; padding: 27px 10px 10px; text-align: center; }
.sanitize-file svg { width: 52px; height: 62px; fill: rgba(23, 58, 86, .38); stroke: rgba(98, 211, 255, .7); stroke-width: 1.25; }
.sanitize-file b { overflow: hidden; max-width: 100%; color: #c9e2ef; font: 500 9px var(--font-ui); text-overflow: ellipsis; white-space: nowrap; }
.sanitize-file small { color: #60798b; font: 8px var(--font-ui); }
.sanitize-source-state { display: flex; justify-content: center; align-items: center; gap: 6px; margin: 12px 9px 0; padding-top: 10px; border-top: 1px solid rgba(98, 211, 255, .11); color: #7892a3; font: 8px var(--font-ui); text-align: center; }
.sanitize-source-state i { width: 5px; height: 5px; flex: none; background: var(--blue); box-shadow: 0 0 8px rgba(25, 132, 203, .7); }
.sanitize-flow { display: grid; place-content: center; gap: 6px; color: #4e6d81; font: 7px var(--font-ui); text-align: center; }
.sanitize-flow i { position: relative; width: 100%; height: 1px; background: linear-gradient(90deg, rgba(37, 216, 255, .1), rgba(37, 216, 255, .75)); }
.sanitize-flow i::after { content: ""; position: absolute; right: -1px; top: -3px; border: 3px solid transparent; border-left-color: var(--cyan); }
.sanitize-overview[data-playing="true"] .sanitize-flow i::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #e4fbff;
  box-shadow: 0 0 9px var(--cyan);
  animation: sanitizePacket 1.5s ease-in-out infinite;
}
@keyframes sanitizePacket { from { left: 0; } to { left: calc(100% - 5px); } }
.sanitize-engine { overflow: hidden; border-color: rgba(37, 216, 255, .34); box-shadow: inset 0 0 36px rgba(25, 132, 203, .06); }
.sanitize-engine-title { position: relative; z-index: 2; display: grid; grid-template-columns: auto auto 1fr; align-items: baseline; gap: 7px; padding: 10px 12px; border-bottom: 1px solid rgba(98, 211, 255, .17); }
.sanitize-engine-title span { color: var(--cyan); font: 600 9px var(--font-ui); }
.sanitize-engine-title b { color: #d1eaf5; font: 600 11px var(--font-ui); }
.sanitize-engine-title small { overflow: hidden; color: #607e91; font: 8px var(--font-ui); text-align: right; text-overflow: ellipsis; white-space: nowrap; }
.sanitize-scanline { position: absolute; z-index: 1; top: 39px; bottom: 0; left: -20%; width: 24%; opacity: 0; background: linear-gradient(90deg, transparent, rgba(37, 216, 255, .14), transparent); }
.sanitize-overview[data-phase="p1"] .sanitize-scanline { opacity: 1; animation: sanitizeScan 1.45s ease-in-out infinite; }
@keyframes sanitizeScan { from { left: -24%; } to { left: 100%; } }
.sanitize-facts { position: relative; z-index: 2; display: grid; gap: 5px; padding: 11px 12px 0; }
.sanitize-facts span { padding: 5px 7px; border-left: 1px solid rgba(37, 216, 255, .45); background: rgba(25, 132, 203, .055); color: #91afbf; font: 8px/1.35 var(--font-ui); animation: sanitizeItemIn .42s ease both; }
.sanitize-facts span:nth-child(2) { animation-delay: .08s; }
.sanitize-facts span:nth-child(3) { animation-delay: .16s; }
.sanitize-facts span:nth-child(4) { animation-delay: .24s; }
@keyframes sanitizeItemIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: none; } }
.sanitize-objects { position: relative; z-index: 2; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 5px; padding: 9px 12px 0; }
.sanitize-objects > span { display: grid; gap: 2px; padding: 5px; border: 1px solid rgba(98, 211, 255, .2); color: #a8c3d1; font: 8px var(--font-ui); animation: sanitizeObjectIn .5s ease both; }
.sanitize-objects > span small { color: #587284; font: 7px var(--font-ui); }
.sanitize-objects > span.allowed { border-color: rgba(37, 216, 255, .25); }
.sanitize-objects > span.allowed small { color: #67c8d9; }
.sanitize-objects > span.risk { border-color: rgba(255, 141, 113, .38); color: #e2ab9e; }
.sanitize-objects > span.risk small { color: var(--risk); }
@keyframes sanitizeObjectIn { from { opacity: 0; transform: scale(.9); } to { opacity: 1; transform: none; } }
.sanitize-rebuild { position: absolute; z-index: 3; right: 12px; bottom: 12px; width: 88px; height: 75px; padding: 8px; border: 1px dashed rgba(37, 216, 255, .28); opacity: 0; transition: opacity .5s, border-color .5s, background .5s; }
.sanitize-rebuild span { color: #678496; font: 7px var(--font-ui); }
.sanitize-rebuild i { display: block; width: 70%; height: 3px; margin-top: 7px; background: rgba(37, 216, 255, .2); transform: scaleX(.25); transform-origin: left; transition: transform .5s, background .5s; }
.sanitize-rebuild i:nth-of-type(2) { width: 52%; }
.sanitize-rebuild i:nth-of-type(3) { width: 80%; }
.sanitize-rebuild i:nth-of-type(4) { width: 42%; }
.sanitize-overview[data-phase="p4"] .sanitize-rebuild,
.sanitize-overview[data-phase="p5"] .sanitize-rebuild,
.sanitize-overview[data-phase="static"] .sanitize-rebuild { opacity: 1; border-color: rgba(37, 216, 255, .58); background: rgba(25, 132, 203, .08); }
.sanitize-overview[data-phase="p4"] .sanitize-rebuild i,
.sanitize-overview[data-phase="p5"] .sanitize-rebuild i,
.sanitize-overview[data-phase="static"] .sanitize-rebuild i { background: var(--cyan); transform: scaleX(1); }
.sanitize-rebuild i:nth-of-type(2) { transition-delay: .18s; }
.sanitize-rebuild i:nth-of-type(3) { transition-delay: .36s; }
.sanitize-rebuild i:nth-of-type(4) { transition-delay: .54s; }
.sanitize-validation { position: absolute; z-index: 3; left: 12px; bottom: 12px; display: grid; gap: 4px; }
.sanitize-validation span { color: #8fd8bb; font: 7px var(--font-ui); }
.sanitize-validation span::before { content: "✓"; margin-right: 5px; color: var(--green); }
.sanitize-safe-output { position: relative; }
.safe-file { opacity: .24; transform: translateY(7px); transition: opacity .55s, transform .55s; }
.sanitize-overview[data-phase="p4"] .safe-file,
.sanitize-overview[data-phase="p5"] .safe-file,
.sanitize-overview[data-phase="static"] .safe-file { opacity: 1; transform: none; }
.sanitize-overview[data-phase="p5"] .safe-file svg,
.sanitize-overview[data-phase="static"] .safe-file svg { fill: rgba(20, 64, 52, .42); stroke: var(--green); filter: drop-shadow(0 0 10px rgba(114, 255, 208, .25)); }
.sanitize-overview[data-phase="p5"] .safe-file small,
.sanitize-overview[data-phase="static"] .safe-file small { color: var(--green); }
.sanitize-copy-badge { margin: 11px 9px 0; padding: 7px; border: 1px solid rgba(37, 216, 255, .22); color: #648095; font: 7px var(--font-ui); text-align: center; letter-spacing: .08em; }
.sanitize-overview[data-phase="p4"] .sanitize-copy-badge,
.sanitize-overview[data-phase="p5"] .sanitize-copy-badge,
.sanitize-overview[data-phase="static"] .sanitize-copy-badge { border-color: rgba(37, 216, 255, .5); color: var(--cyan); }
.sanitize-disposition { height: 46px; display: flex; align-items: center; gap: 10px; padding: 0 17px; border-top: 1px solid rgba(255, 141, 113, .2); border-bottom: 1px solid var(--line); background: rgba(29, 15, 18, .38); }
.sanitize-disposition span { color: #bc8276; font: 8px var(--font-ui); letter-spacing: .12em; }
.sanitize-disposition b { color: #dba99d; font: 500 8px var(--font-ui); }
.sanitize-disposition i { width: 3px; height: 3px; background: var(--risk); opacity: .55; }
.sanitize-disposition em { margin-left: auto; color: #6f7f89; font: 8px var(--font-ui); font-style: normal; text-align: right; }
.sanitize-note { margin: 0; padding: 8px 17px 0; color: #4c6778; font: 8px/1.45 var(--font-ui); }
.anim-paused .sanitize-flow i::before, .anim-paused .sanitize-scanline { animation-play-state: paused !important; }

/* ---------- 能力带 ---------- */
.trust-rail {
  min-height: 92px;
  display: flex;
  align-items: stretch;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #050c14;
}
.rail-label {
  width: max(260px, calc((100vw - 1480px) / 2 + 180px));
  display: grid;
  place-items: center;
  padding-left: max(20px, calc((100vw - 1480px) / 2));
  border-right: 1px solid var(--line);
  color: #6c8495;
  font: 10px var(--font-ui);
  letter-spacing: .18em;
}
.rail-items {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-evenly;
  gap: 18px;
  padding: 0 max(32px, calc((100vw - 1480px) / 2));
  color: #9eb1bf;
  font-size: 12px;
}
.rail-items i { width: 3px; height: 3px; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); }

/* ---------- 区域标题通用 ---------- */
.section-index { color: #69889e; font: 10px/1.5 var(--font-ui); letter-spacing: .16em; }
.section-intro h2, .platform-copy h2, .scenario-head h2, .demo-heading h2, .contact-copy h2 {
  margin: 0;
  font-size: clamp(39px, 3.4vw, 58px);
  line-height: 1.18;
  font-weight: 630;
}
.section-intro h2 span, .platform-copy h2 span, .scenario-head h2 span, .demo-heading h2 span, .contact-copy h2 span { color: var(--cyan); }

/* ---------- 技术深潜 P1-P5（方案 §5.3） ---------- */
.technology { padding: 150px 0 160px; }
.section-intro { display: grid; grid-template-columns: 220px 1.25fr .75fr; align-items: start; gap: 42px; }
.section-intro > p, .scenario-head > p { margin: 7px 0 0; color: #8fa5b5; font-size: 15px; line-height: 1.95; }
.process-experience {
  margin-top: 86px;
  display: grid;
  grid-template-columns: 235px 1fr;
  min-height: 660px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.process-rail { display: flex; flex-direction: column; border-right: 1px solid var(--line); }
.process-tab {
  position: relative;
  flex: 1;
  display: grid;
  grid-template-columns: 38px 1fr;
  grid-template-rows: auto auto;
  gap: 5px 10px;
  align-content: center;
  text-align: left;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  transition: background var(--transition-base);
}
.process-tab:last-child { border-bottom: 0; }
.process-tab::before {
  content: "";
  position: absolute;
  left: -1px;
  top: 0;
  bottom: 100%;
  width: 2px;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  transition: bottom .3s, background var(--transition-base), box-shadow var(--transition-base);
}
.process-tab b, .process-tab span, .process-tab small { transition: color var(--transition-base); }
.process-tab b { grid-row: 1/3; align-self: center; color: #6e8899; font: 11px var(--font-ui); }
.process-tab span { font-size: 14px; }
.process-tab small { color: #648095; font-size: 10px; }
.process-tab.active { background: linear-gradient(90deg, rgba(32, 151, 203, .32), rgba(32, 151, 203, .04)); }
.process-tab.active::before { bottom: 0; width: 3px; }
.process-tab.active b, .process-tab.active span { color: var(--cyan); }
.process-tab.active span { text-shadow: 0 0 14px rgba(37, 216, 255, .45); }
.process-tab.active small { color: #9fc3d8; }
/* 激活标签跟随阶段主色：P2 蓝 / P3 橙 / P4 绿 / P5 青（P1 为默认青色） */
.process-rail[data-active-stage="2"] .process-tab.active { background: linear-gradient(90deg, rgba(110, 168, 255, .32), rgba(110, 168, 255, .04)); }
.process-rail[data-active-stage="2"] .process-tab.active::before { background: #6ea8ff; box-shadow: 0 0 10px #6ea8ff; }
.process-rail[data-active-stage="2"] .process-tab.active b, .process-rail[data-active-stage="2"] .process-tab.active span { color: #6ea8ff; }
.process-rail[data-active-stage="2"] .process-tab.active span { text-shadow: 0 0 14px rgba(110, 168, 255, .45); }
.process-rail[data-active-stage="3"] .process-tab.active { background: linear-gradient(90deg, rgba(255, 141, 113, .32), rgba(255, 141, 113, .04)); }
.process-rail[data-active-stage="3"] .process-tab.active::before { background: #ff8d71; box-shadow: 0 0 10px #ff8d71; }
.process-rail[data-active-stage="3"] .process-tab.active b, .process-rail[data-active-stage="3"] .process-tab.active span { color: #ff8d71; }
.process-rail[data-active-stage="3"] .process-tab.active span { text-shadow: 0 0 14px rgba(255, 141, 113, .45); }
.process-rail[data-active-stage="4"] .process-tab.active { background: linear-gradient(90deg, rgba(114, 255, 208, .28), rgba(114, 255, 208, .04)); }
.process-rail[data-active-stage="4"] .process-tab.active::before { background: var(--green); box-shadow: 0 0 10px var(--green); }
.process-rail[data-active-stage="4"] .process-tab.active b, .process-rail[data-active-stage="4"] .process-tab.active span { color: var(--green); }
.process-rail[data-active-stage="4"] .process-tab.active span { text-shadow: 0 0 14px rgba(114, 255, 208, .45); }
.process-rail[data-active-stage="5"] .process-tab.active { background: linear-gradient(90deg, rgba(62, 230, 196, .3), rgba(62, 230, 196, .04)); }
.process-rail[data-active-stage="5"] .process-tab.active::before { background: #3ee6c4; box-shadow: 0 0 10px #3ee6c4; }
.process-rail[data-active-stage="5"] .process-tab.active b, .process-rail[data-active-stage="5"] .process-tab.active span { color: #3ee6c4; }
.process-rail[data-active-stage="5"] .process-tab.active span { text-shadow: 0 0 14px rgba(62, 230, 196, .45); }
.process-visual {
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 62% 42%, rgba(26, 142, 192, .08), transparent 31%), #050c14;
  transition: background .6s ease, box-shadow .6s ease;
}
/* 阶段切换强化：每个执行阶段给工作区不同的主色晕染与内描边，让 P1–P5 切换一眼可辨 */
.process-visual[data-active-stage="1"] { background: radial-gradient(circle at 62% 42%, rgba(37, 216, 255, .15), transparent 36%), #050c14; box-shadow: inset 0 0 0 1px rgba(37, 216, 255, .22), inset 0 0 90px rgba(37, 216, 255, .07); }
.process-visual[data-active-stage="2"] { background: radial-gradient(circle at 62% 42%, rgba(110, 168, 255, .17), transparent 36%), #050c14; box-shadow: inset 0 0 0 1px rgba(110, 168, 255, .25), inset 0 0 90px rgba(110, 168, 255, .07); }
.process-visual[data-active-stage="3"] { background: radial-gradient(circle at 62% 42%, rgba(255, 141, 113, .15), transparent 36%), #050c14; box-shadow: inset 0 0 0 1px rgba(255, 141, 113, .24), inset 0 0 90px rgba(255, 141, 113, .07); }
.process-visual[data-active-stage="4"] { background: radial-gradient(circle at 62% 42%, rgba(114, 255, 208, .14), transparent 36%), #050c14; box-shadow: inset 0 0 0 1px rgba(114, 255, 208, .24), inset 0 0 90px rgba(114, 255, 208, .07); }
.process-visual[data-active-stage="5"] { background: radial-gradient(circle at 62% 42%, rgba(62, 230, 196, .15), transparent 36%), #050c14; box-shadow: inset 0 0 0 1px rgba(62, 230, 196, .24), inset 0 0 90px rgba(62, 230, 196, .07); }
.visual-grid {
  position: absolute;
  inset: 0;
  opacity: .45;
  background-image:
    linear-gradient(rgba(77, 143, 180, .1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(77, 143, 180, .1) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, black, transparent 90%);
}
.visual-header {
  position: absolute;
  left: 24px;
  right: 24px;
  top: 19px;
  display: flex;
  justify-content: space-between;
  color: #4e7187;
  font: 9px var(--font-ui);
  letter-spacing: .12em;
}
.visual-header b { color: #6c93aa; font-weight: 400; }
.structure-tree { position: absolute; left: 6%; top: 100px; width: 34%; }
.tree-root, .tree-branch {
  position: relative;
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: rgba(7, 24, 37, .84);
}
.tree-root { min-height: 54px; border-color: rgba(47, 155, 212, .42); }
.tree-root i { width: 12px; height: 15px; border: 1px solid var(--cyan); }
.tree-root strong { font-size: 12px; }
.tree-root small { margin-left: auto; color: #55768a; font: 8px var(--font-ui); }
.tree-branch { width: 86%; margin: 10px 0 0 14%; }
.tree-branch::before {
  content: "";
  position: absolute;
  right: 100%;
  top: 50%;
  width: 16%;
  height: calc(100% + 11px);
  border-left: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transform: translateY(-100%);
}
.tree-branch i { width: 5px; height: 5px; border-radius: 50%; }
.tree-branch span { font: 10px var(--font-ui); color: #9db1bf; }
.tree-branch b { margin-left: auto; font-size: 9px; }
.tree-branch.safe i { background: var(--cyan); box-shadow: 0 0 7px var(--cyan); }
.tree-branch.safe b { color: #68dfff; }
.tree-branch.risk { border-color: rgba(255, 141, 113, .28); background: rgba(63, 24, 25, .48); }
.tree-branch.risk i { background: var(--risk); box-shadow: 0 0 7px var(--risk); }
.tree-branch.risk b { color: var(--risk); }
.tree-sub { display: block; margin-top: 2px; color: #6e8798; font: 10px/1.4 var(--font-ui); }
.tree-branch span > .tree-sub { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rebuild-lines { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.rebuild-lines path { fill: none; stroke-width: 1.2; stroke-dasharray: 6 7; animation: dash 2.2s linear infinite; }
.safe-line { stroke: rgba(48, 213, 255, .75); }
.risk-line { stroke: rgba(255, 141, 113, .68); }
.policy-gate {
  position: absolute;
  left: 48%;
  top: 45%;
  width: 86px;
  height: 78px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 141, 113, .34);
  background: rgba(46, 20, 22, .84);
  transform: translate(-50%, -50%);
}
.policy-gate span { color: var(--risk); font: 9px var(--font-ui); letter-spacing: .15em; }
.policy-gate i { width: 32px; height: 1px; margin: 9px 0; background: var(--risk); box-shadow: 0 0 8px var(--risk); }
.policy-gate b { font-size: 8px; color: #c48578; }
.rebuild-target { position: absolute; right: 9%; top: 27%; width: 175px; text-align: center; }
.target-doc {
  position: relative;
  width: 110px;
  height: 138px;
  margin: 0 auto 20px;
  padding: 42px 22px 15px;
  border: 1px solid rgba(105, 255, 208, .58);
  background: rgba(10, 47, 50, .7);
  clip-path: polygon(0 0, 77% 0, 100% 18%, 100% 100%, 0 100%);
  box-shadow: 0 0 35px rgba(105, 255, 208, .1);
}
.target-doc::before {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: 25px;
  height: 25px;
  border-left: 1px solid rgba(105, 255, 208, .58);
  border-bottom: 1px solid rgba(105, 255, 208, .58);
}
.target-doc span { display: block; margin-bottom: 17px; color: var(--green); font: 10px var(--font-ui); letter-spacing: .15em; }
.target-doc i { display: block; height: 3px; margin: 8px 0; background: rgba(105, 255, 208, .33); }
.rebuild-target strong { display: block; font-size: 13px; }
.rebuild-target small { display: block; margin-top: 7px; color: #638697; font-size: 9px; }
/* P4 安全验证场景：新文件图形（复用 target-doc 语言）+ 分步骤校验清单（L0-L5 + 检测内容） */
.verify-scene {
  position: absolute;
  left: 50%;
  top: 46%;
  display: flex;
  align-items: center;
  gap: 44px;
  opacity: 0;
  transform: translate(-50%, -50%) scale(.95);
  transition: opacity var(--transition-base), transform var(--transition-base);
}
.vs-doc { position: relative; flex: none; }
.vs-doc-body {
  position: relative;
  width: 110px;
  height: 138px;
  padding: 42px 22px 15px;
  border: 1px solid rgba(105, 255, 208, .58);
  background: rgba(10, 47, 50, .7);
  clip-path: polygon(0 0, 77% 0, 100% 18%, 100% 100%, 0 100%);
  box-shadow: 0 0 42px rgba(105, 255, 208, .16);
}
.vs-doc-body::before { content: ""; position: absolute; right: 0; top: 0; width: 25px; height: 25px; border-left: 1px solid rgba(105, 255, 208, .58); border-bottom: 1px solid rgba(105, 255, 208, .58); }
.vs-doc-body span { display: block; margin-bottom: 17px; color: var(--green); font: 10px var(--font-ui); letter-spacing: .15em; }
.vs-doc-body i { display: block; height: 3px; margin: 8px 0; background: rgba(105, 255, 208, .5); }
.vs-check { position: absolute; right: -10px; top: -10px; width: 24px; height: 24px; border: 1px solid rgba(114, 255, 208, .6); background: rgba(8, 22, 35, .92); }
.vs-check::after { content: ""; position: absolute; left: 8px; top: 4px; width: 5px; height: 11px; border-right: 2px solid var(--green); border-bottom: 2px solid var(--green); transform: rotate(40deg); }
.vs-list { display: grid; gap: 5px; width: 320px; }
.vs-step {
  display: grid;
  grid-template-columns: 26px 1fr 14px;
  align-items: center;
  gap: 10px;
  padding: 6px 10px;
  border: 1px solid var(--line);
  background: rgba(7, 24, 37, .72);
  font: 9px var(--font-ui);
}
.vs-step b { color: #6fb7d9; font-weight: 400; transition: color .3s; }
.vs-step span { display: block; color: #cfeeff; }
.vs-step small { display: block; margin-top: 1px; color: #6e8798; font-size: 8px; }
.vs-step i { position: relative; width: 12px; height: 12px; border: 1px solid rgba(114, 255, 208, .3); transition: border-color .3s, box-shadow .3s; }
.vs-step i::after { content: ""; position: absolute; left: 3px; top: 1px; width: 3px; height: 7px; border-right: 1.5px solid var(--green); border-bottom: 1.5px solid var(--green); transform: rotate(40deg); opacity: 0; transition: opacity .3s; }
.process-visual[data-active-stage="4"] .verify-scene { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.process-visual[data-active-stage="4"] .vs-step { border-color: rgba(114, 255, 208, .4); }
.process-visual[data-active-stage="4"] .vs-step b { color: var(--green); }
.process-visual[data-active-stage="4"] .vs-step i { border-color: rgba(114, 255, 208, .6); box-shadow: 0 0 8px rgba(114, 255, 208, .25); }
.process-visual[data-active-stage="4"] .vs-step i::after { opacity: 1; }
/* 逐层点亮延迟链（L0→L5 依次出对勾） */
.process-visual[data-active-stage="4"] .vs-step:nth-child(1),
.process-visual[data-active-stage="4"] .vs-step:nth-child(1) i,
.process-visual[data-active-stage="4"] .vs-step:nth-child(1) i::after { transition-delay: .05s; }
.process-visual[data-active-stage="4"] .vs-step:nth-child(2),
.process-visual[data-active-stage="4"] .vs-step:nth-child(2) i,
.process-visual[data-active-stage="4"] .vs-step:nth-child(2) i::after { transition-delay: .23s; }
.process-visual[data-active-stage="4"] .vs-step:nth-child(3),
.process-visual[data-active-stage="4"] .vs-step:nth-child(3) i,
.process-visual[data-active-stage="4"] .vs-step:nth-child(3) i::after { transition-delay: .41s; }
.process-visual[data-active-stage="4"] .vs-step:nth-child(4),
.process-visual[data-active-stage="4"] .vs-step:nth-child(4) i,
.process-visual[data-active-stage="4"] .vs-step:nth-child(4) i::after { transition-delay: .59s; }
.process-visual[data-active-stage="4"] .vs-step:nth-child(5),
.process-visual[data-active-stage="4"] .vs-step:nth-child(5) i,
.process-visual[data-active-stage="4"] .vs-step:nth-child(5) i::after { transition-delay: .77s; }
.process-visual[data-active-stage="4"] .vs-step:nth-child(6),
.process-visual[data-active-stage="4"] .vs-step:nth-child(6) i,
.process-visual[data-active-stage="4"] .vs-step:nth-child(6) i::after { transition-delay: .95s; }

/* P5 策略路由：起点（安全副本）向右发散 4 条路径至处置终点（chips 主名 + 副述 + 颜色边条） */
.policy-routes {
  position: absolute;
  left: 7%;
  top: 96px;
  height: 240px;
  display: flex;
  align-items: center;
  gap: 22px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--transition-base), transform var(--transition-base);
}
.pr-source { flex: none; width: 128px; text-align: center; }
.pr-doc { width: 46px; height: 55px; }
.pr-doc-body { fill: rgba(20, 64, 52, .5); stroke: rgba(114, 255, 208, .85); stroke-width: 1.4; }
.pr-doc-fold { fill: rgba(114, 255, 208, .16); stroke: rgba(114, 255, 208, .85); stroke-width: 1.2; }
.pr-doc-lines { fill: none; stroke: rgba(114, 255, 208, .45); stroke-width: 1.2; }
.pr-source b { display: block; margin-top: 8px; color: #d8fff0; font: 400 9px/1.5 var(--font-ui); }
.pr-lines { flex: none; overflow: visible; }
.pr-line { fill: none; stroke-width: 1.2; stroke-dasharray: 5 6; }
.prl-deliver { stroke: rgba(114, 255, 208, .75); }
.prl-block { stroke: rgba(255, 141, 113, .6); }
.prl-quarantine { stroke: rgba(255, 141, 113, .38); }
.prl-review { stroke: rgba(98, 211, 255, .5); }
.pr-stop { fill: none; stroke: var(--risk); stroke-width: 1.8; }
.pr-packet { fill: var(--green); opacity: 0; }
.process-visual[data-active-stage="5"] .prl-deliver { animation: dash 1.2s linear infinite; }
.process-visual[data-active-stage="5"] .pr-packet { opacity: 1; animation: prPacket 1.6s linear infinite; }
@keyframes prPacket {
  0% { transform: translate(0, 0); opacity: 0; }
  12% { opacity: 1; }
  88% { opacity: 1; }
  100% { transform: translate(400px, -92px); opacity: 0; }
}
.disposition-states { display: grid; gap: 13px; width: 196px; }
.disposition-states span {
  display: grid;
  gap: 1px;
  padding: 7px 11px 7px 13px;
  border: 1px solid var(--line);
  border-left-width: 3px;
  background: rgba(7, 24, 37, .84);
  font: 9px var(--font-ui);
}
.disposition-states span b { font-weight: 400; }
.disposition-states span small { color: #6e8798; font-size: 8px; }
.disposition-states .disp-deliver { border-left-color: var(--green); }
.disposition-states .disp-deliver b { color: var(--green); }
.disposition-states .disp-block { border-left-color: var(--risk); }
.disposition-states .disp-block b { color: var(--risk); }
.disposition-states .disp-quarantine { border-left-color: rgba(255, 141, 113, .55); }
.disposition-states .disp-quarantine b { color: #d99c8d; }
.disposition-states .disp-review { border-left-color: rgba(98, 211, 255, .6); }
.disposition-states .disp-review b { color: #8fd7f5; }
.process-visual[data-active-stage="5"] .policy-routes { opacity: 1; transform: none; }
.process-visual[data-active-stage="5"] .disposition-states span { animation: dispIn .45s ease both; }
.process-visual[data-active-stage="5"] .disposition-states span:nth-child(2) { animation-delay: .1s; }
.process-visual[data-active-stage="5"] .disposition-states span:nth-child(3) { animation-delay: .2s; }
.process-visual[data-active-stage="5"] .disposition-states span:nth-child(4) { animation-delay: .3s; }

.stage-caption {
  position: absolute;
  left: 6%;
  right: 6%;
  bottom: 34px;
  display: grid;
  grid-template-columns: 70px 1fr;
  gap: 20px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}
.stage-caption > b { color: var(--cyan); font: 28px var(--font-ui); transition: color .6s ease; }
.process-visual[data-active-stage="2"] .stage-caption > b { color: #6ea8ff; }
.process-visual[data-active-stage="3"] .stage-caption > b { color: #ff8d71; }
.process-visual[data-active-stage="4"] .stage-caption > b { color: var(--green); }
.process-visual[data-active-stage="5"] .stage-caption > b { color: #3ee6c4; }
.stage-caption strong { font-size: 15px; }
.stage-caption p { max-width: 690px; margin: 9px 0 0; color: #768f9f; font-size: 12px; line-height: 1.7; }

/* ---------- OBJECT WORKSPACE 阶段专属层（第六轮：五阶段差异化） ---------- */
/* P1 识别面板：中央偏左大面板，文件头 + 逐字节高亮 → 格式判定 → SIGNATURE MATCH 徽章 + 一致性行 */
.identify-panel { position: absolute; left: 34%; top: 54%; width: 340px; padding: 16px 18px; border: 1px solid rgba(98, 211, 255, .3); background: rgba(8, 22, 35, .88); box-shadow: 0 24px 60px rgba(0, 0, 0, .45); transform: translate(-50%, -50%) translateY(8px); transition: opacity var(--transition-base), transform var(--transition-base); }
.id-head { display: flex; align-items: center; gap: 12px; }
.id-icon { flex: none; width: 36px; height: 43px; }
.id-body { fill: rgba(23, 58, 86, .5); stroke: rgba(98, 211, 255, .78); stroke-width: 1.4; }
.id-fold { fill: rgba(98, 211, 255, .16); stroke: rgba(98, 211, 255, .78); stroke-width: 1.2; }
.id-lines { fill: none; stroke: rgba(120, 190, 228, .4); stroke-width: 1.2; }
.id-name { flex: 1; display: grid; gap: 3px; }
.id-name b { color: #cfeeff; font: 400 12px var(--font-ui); }
.id-name small { color: #5f7c90; font: 8px var(--font-ui); letter-spacing: .12em; }
.id-scan { flex: none; width: 34px; height: 14px; border: 1px solid rgba(37, 216, 255, .4); background: linear-gradient(90deg, transparent 44%, rgba(37, 216, 255, .5) 50%, transparent 56%); background-size: 250% 100%; background-position: 100% 0; opacity: 0; transition: opacity .4s; pointer-events: none; }
.process-visual[data-active-stage="1"] .id-scan { opacity: 1; animation: idScan 1.6s linear infinite; }
@keyframes idScan { from { background-position: 100% 0; } to { background-position: 0% 0; } }
.id-bytes { display: flex; justify-content: center; gap: 10px; margin: 16px 0 12px; }
.id-bytes span { padding: 8px 10px; border: 1px solid rgba(37, 216, 255, .35); background: rgba(37, 216, 255, .06); color: var(--cyan); font: 700 18px/1 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; opacity: 0; }
.process-visual[data-active-stage="1"] .id-bytes span { animation: byteIn .55s both; }
.process-visual[data-active-stage="1"] .id-bytes span:nth-child(1) { animation-delay: .15s; }
.process-visual[data-active-stage="1"] .id-bytes span:nth-child(2) { animation-delay: .35s; }
.process-visual[data-active-stage="1"] .id-bytes span:nth-child(3) { animation-delay: .55s; }
.process-visual[data-active-stage="1"] .id-bytes span:nth-child(4) { animation-delay: .75s; }
@keyframes byteIn { 0% { opacity: 0; transform: translateY(5px); } 55% { opacity: 1; color: #d8fdff; text-shadow: 0 0 16px rgba(37, 216, 255, .9); border-color: rgba(37, 216, 255, .85); background: rgba(37, 216, 255, .14); } 100% { opacity: 1; transform: none; text-shadow: 0 0 6px rgba(37, 216, 255, .35); } }
.id-arrow { display: flex; align-items: center; justify-content: center; gap: 9px; color: var(--cyan); font: 400 10px var(--font-ui); letter-spacing: .14em; opacity: 0; transition: opacity .4s 1s; }
.id-arrow i { position: relative; width: 26px; height: 1px; background: linear-gradient(90deg, transparent, var(--cyan)); }
.id-arrow i::after { content: ""; position: absolute; right: 0; top: -3px; border: 3.5px solid transparent; border-left-color: var(--cyan); }
.process-visual[data-active-stage="1"] .id-arrow { opacity: 1; }
.id-foot { display: grid; justify-items: center; gap: 8px; margin-top: 13px; opacity: 0; transition: opacity .45s 1.6s; }
.process-visual[data-active-stage="1"] .id-foot { opacity: 1; }
.id-match { padding: 5px 13px; border: 1px solid rgba(37, 216, 255, .6); background: rgba(37, 216, 255, .08); box-shadow: 0 0 18px rgba(37, 216, 255, .18); color: var(--cyan); font: 9px var(--font-ui); letter-spacing: .16em; }
.process-visual[data-active-stage="1"] .id-match { animation: matchIn .5s 1.3s both; }
@keyframes matchIn { 0% { opacity: 0; transform: scale(.7); } 60% { opacity: 1; transform: scale(1.08); } 100% { opacity: 1; transform: scale(1); } }
.id-line { display: flex; align-items: baseline; gap: 8px; padding: 5px 8px; border: 1px solid var(--line); background: rgba(7, 24, 37, .72); font: 8px var(--font-ui); }
.id-line i { flex: none; color: #486273; font-style: normal; letter-spacing: .08em; }
.id-line span { color: #9fd8f2; letter-spacing: .04em; }
.id-line.ok span { color: var(--green); }
.id-line.ok em { margin-left: auto; color: var(--green); font-style: normal; }

/* P3 隔离小槽：policy-gate 正下方，承接脱落的风险对象；入槽后脉冲 + 计数行 */
.gate-quarantine { position: absolute; left: 48%; top: calc(45% + 56px); width: 196px; padding: 6px 10px; border: 1px solid rgba(255, 141, 113, .42); background: rgba(46, 20, 22, .62); text-align: center; transform: translate(-50%, 6px); transition: opacity var(--transition-base), transform var(--transition-base); }
.gate-quarantine span { display: block; color: var(--risk); font: 8px var(--font-ui); letter-spacing: .16em; }
.gate-quarantine b { display: block; margin-top: 3px; color: #d99c8d; font: 400 8px/1.5 var(--font-ui); }
.gate-quarantine em { display: block; margin-top: 3px; color: var(--cyan); font: 400 8px var(--font-ui); font-style: normal; letter-spacing: .1em; opacity: 0; transition: opacity .4s; }
.process-visual[data-active-stage="3"] .gate-quarantine { animation: slotPulse .9s ease-out 1.3s; }
.process-visual[data-active-stage="3"] .gate-quarantine em { opacity: 1; transition-delay: 1.15s; }
@keyframes slotPulse { 0% { box-shadow: 0 0 0 0 rgba(37, 216, 255, .5); } 100% { box-shadow: 0 0 0 18px rgba(37, 216, 255, 0); } }
@keyframes docGlow { 0%, 100% { box-shadow: 0 0 35px rgba(105, 255, 208, .1); } 45% { box-shadow: 0 0 64px rgba(105, 255, 208, .5); } }

/* 阶段执行要点（caption 内，整块重渲染重播逐条入场；2×2 网格保持各阶段 caption 高度一致） */
.stage-points { margin-top: 12px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 5px 22px; max-width: 690px; min-height: 46px; }
.sp-item { display: flex; align-items: baseline; gap: 7px; color: #8fa9bb; font: 10px/1.5 var(--font-ui); animation: spIn .4s ease both; }
.sp-item i { width: 5px; height: 5px; flex: none; background: var(--cyan); }
.sp-item:nth-child(2) { animation-delay: .07s; }
.sp-item:nth-child(3) { animation-delay: .14s; }
.sp-item:nth-child(4) { animation-delay: .21s; }
@keyframes spIn { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; transform: none; } }
@keyframes riskPulse { 0%, 100% { box-shadow: 0 0 0 rgba(255, 141, 113, 0); } 50% { box-shadow: 0 0 16px rgba(255, 141, 113, .35); } }
@keyframes dispIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* 阶段画面状态（数据驱动，P1-P5 差异化：每阶段聚焦本阶段执行层，其余隐藏或极暗） */
.process-visual .structure-tree, .process-visual .rebuild-lines,
.process-visual .policy-gate, .process-visual .rebuild-target { transition: opacity var(--transition-base); }
/* 基态：除对象树根节点外各执行层隐藏，由 [data-active-stage] 逐层点亮 */
.tree-branch { opacity: 0; transition: opacity .5s ease, transform .5s ease; }
.rebuild-lines, .policy-gate, .rebuild-target, .identify-panel,
.gate-quarantine { opacity: 0; }
/* P1 识别：仅 root + 识别面板（逐字节高亮 → 格式判定 → 签名徽章），其余层隐藏 */
.process-visual[data-active-stage="1"] .tree-root { box-shadow: 0 0 24px rgba(37, 216, 255, .15); }
.process-visual[data-active-stage="1"] .identify-panel { opacity: 1; transform: translate(-50%, -50%); }
/* P2 拆解检测：树逐层展开（保留 treeReveal）+ 风险分支红晕脉冲；重构连线彻底隐去 */
.process-visual[data-active-stage="2"] .tree-branch { animation: treeReveal .5s both; }
.process-visual[data-active-stage="2"] .branch-2 { animation-delay: .07s; }
.process-visual[data-active-stage="2"] .branch-3 { animation-delay: .14s; }
.process-visual[data-active-stage="2"] .branch-4 { animation-delay: .21s; }
.process-visual[data-active-stage="2"] .branch-5 { animation-delay: .28s; }
.process-visual[data-active-stage="2"] .tree-branch.risk { animation: treeReveal .5s both, riskPulse 1.6s ease-in-out .6s infinite; }
/* P3 净化重构：gate 聚焦、risk-line 中断、safe-line 流入、风险分支 stagger 脱落入隔离小槽 */
.process-visual[data-active-stage="3"] .tree-branch { opacity: 1; }
.process-visual[data-active-stage="3"] .tree-branch.risk { opacity: 0; border-color: rgba(255, 141, 113, .65); box-shadow: 0 14px 32px rgba(255, 141, 113, .22); }
.process-visual[data-active-stage="3"] .tree-branch.risk.branch-3 { transform: translate(170px, 60px) scale(.45); transition-delay: .4s; }
.process-visual[data-active-stage="3"] .tree-branch.risk.branch-4 { transform: translate(170px, 10px) scale(.45); transition-delay: .7s; }
.process-visual[data-active-stage="3"] .rebuild-lines,
.process-visual[data-active-stage="3"] .policy-gate,
.process-visual[data-active-stage="3"] .rebuild-target { opacity: 1; }
.process-visual[data-active-stage="3"] .risk-line { animation: riskReject 1.1s ease-in-out infinite; }
.process-visual[data-active-stage="3"] .target-doc { animation: docGlow 1.3s ease-in-out 1.2s; }
.process-visual[data-active-stage="3"] .policy-gate { box-shadow: 0 0 26px rgba(255, 141, 113, .2); }
.process-visual[data-active-stage="3"] .gate-quarantine { opacity: 1; transform: translate(-50%, 0); transition-delay: .9s; }
/* P3 组装感：新文件块逐条填充 */
.target-doc i { transform: scaleX(.18); opacity: .25; transform-origin: left; transition: transform .55s ease, opacity .55s ease; }
.process-visual[data-active-stage="3"] .target-doc i { transform: scaleX(1); opacity: 1; }
.process-visual[data-active-stage="3"] .target-doc i:nth-of-type(2) { transition-delay: .3s; }
.process-visual[data-active-stage="3"] .target-doc i:nth-of-type(3) { transition-delay: .6s; }
/* P4 安全验证：旧结构全部隐去，仅留居中 verify-scene（点亮规则见 .verify-scene 块） */
.process-visual[data-active-stage="4"] .structure-tree,
.process-visual[data-active-stage="4"] .policy-gate,
.process-visual[data-active-stage="4"] .rebuild-target { opacity: 0; }
/* P5 策略处置：仅留 policy-routes 场景（点亮规则见 .policy-routes 块），其余隐去 */
.process-visual[data-active-stage="5"] .structure-tree,
.process-visual[data-active-stage="5"] .policy-gate,
.process-visual[data-active-stage="5"] .rebuild-target,
.process-visual[data-active-stage="5"] .verify-scene { opacity: 0; }

/* ---------- 平台运营视图（方案 §5.4） ---------- */
/* 全站 HUD 语言统一：角部坐标括号（与首屏 stack-canvas 一致） */
.product-surface, .topology { position: relative; }
.product-surface::before, .product-surface::after,
.topology::before, .topology::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border: 1px solid rgba(98, 211, 255, .38);
  pointer-events: none;
}
.product-surface::before, .topology::before { left: -1px; top: -1px; border-right: 0; border-bottom: 0; }
.product-surface::after, .topology::after { right: -1px; bottom: -1px; border-left: 0; border-top: 0; }
.topology {
  background-image:
    linear-gradient(rgba(87, 157, 197, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(87, 157, 197, .07) 1px, transparent 1px);
  background-size: 30px 30px;
}
.platform {
  position: relative;
  overflow: hidden;
  padding: 150px 0;
  background: #06101a;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.platform-backdrop {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 75% 50%, rgba(22, 125, 185, .16), transparent 35%),
    linear-gradient(112deg, transparent 0 56%, rgba(65, 161, 214, .03) 56% 57%, transparent 57%);
}
.platform-backdrop::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .19;
  background-image: linear-gradient(90deg, transparent 49.8%, rgba(62, 153, 204, .2) 50%, transparent 50.2%);
  background-size: 120px 100%;
}
.platform-inner { position: relative; display: grid; grid-template-columns: .78fr 1.22fr; gap: 52px; align-items: center; }
.platform-copy h2 { font-size: clamp(36px, 3vw, 52px); white-space: nowrap; }
.platform-copy h2 span { display: inline-block; }
.platform-copy > p { max-width: 540px; margin: 27px 0 0; color: #8fa4b4; font-size: 15px; line-height: 1.9; }
.platform-copy .section-index { margin-bottom: 28px; }
.capability-list { margin-top: 36px; border-top: 1px solid var(--line); }
.capability-item {
  min-width: 0;
  width: 100%;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr) 16px;
  align-items: center;
  gap: 15px;
  padding: 20px 0;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  text-align: left;
  cursor: pointer;
}
.capability-item > span { color: #4e7085; font: 10px var(--font-ui); }
.capability-item > div { min-width: 0; }
.capability-item b, .capability-item small { display: block; }
.capability-item b { font-size: 14px; }
.capability-item small { margin-top: 6px; color: #7891a2; font-size: 11px; line-height: 1.55; }
.capability-item > i { justify-self: center; font-style: normal; color: #527589; transition: color var(--transition-fast); }
.capability-item.active b, .capability-item.active > i { color: var(--cyan); }
.product-surface {
  position: relative;
  border: 1px solid rgba(108, 173, 214, .24);
  background: #07121d;
  box-shadow: 0 35px 100px rgba(0, 0, 0, .4);
  transform: perspective(1400px) rotateY(-4deg);
  transform-origin: right center;
}
.surface-bar, .surface-footer {
  height: 43px;
  display: flex;
  align-items: center;
  padding: 0 14px;
  color: #6c8494;
  font: 10px var(--font-ui);
}
.surface-bar { border-bottom: 1px solid var(--line); }
.surface-bar > span { display: flex; gap: 6px; margin-right: 19px; }
.surface-bar i { width: 6px; height: 6px; border-radius: 50%; background: #26475a; }
.surface-bar b { font-weight: 400; color: #87a4b5; }
.surface-media { position: relative; aspect-ratio: 16/9; overflow: hidden; background: #07111b; }
.surface-open {
  display: block;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: zoom-in;
}
.surface-open picture { display: block; width: 100%; height: 100%; }
.surface-media img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  transition: opacity .22s, transform .7s;
}
.surface-media:hover img { transform: scale(1.012); }
.surface-zoom-hint {
  position: absolute;
  z-index: 4;
  right: 12px;
  bottom: 12px;
  padding: 6px 9px;
  border: 1px solid rgba(127, 203, 236, .28);
  background: rgba(3, 14, 22, .82);
  color: #a9d9ee;
  font: 10px var(--font-ui);
  opacity: 0;
  transform: translateY(4px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}
.surface-open:hover .surface-zoom-hint,
.surface-open:focus-visible .surface-zoom-hint { opacity: 1; transform: none; }
.surface-media::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(3, 10, 16, .08), transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(37, 216, 255, .07), transparent 30%);
}
.surface-scan {
  position: absolute;
  z-index: 2;
  left: 0;
  right: 0;
  top: -20%;
  height: 20%;
  background: linear-gradient(transparent, rgba(37, 216, 255, .06), rgba(37, 216, 255, .18), transparent);
  animation: surfaceScan 5.5s linear infinite;
}
.surface-evidence {
  display: flex;
  gap: 8px;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background: rgba(4, 14, 22, .78);
}
.surface-evidence span {
  padding: 5px 8px;
  border: 1px solid rgba(57, 183, 225, .2);
  color: #8bbdd3;
  font: 10px var(--font-ui);
}
.surface-footer { justify-content: space-between; border-top: 1px solid var(--line); }
.surface-footer i {
  display: inline-block;
  width: 5px;
  height: 5px;
  margin-right: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 7px var(--green);
}
.screen-dialog {
  width: min(96vw, 1440px);
  max-width: none;
  padding: 0;
  border: 1px solid rgba(108, 173, 214, .34);
  background: #07111b;
  color: #d9edf7;
  box-shadow: 0 30px 120px rgba(0, 0, 0, .72);
}
.screen-dialog::backdrop { background: rgba(0, 6, 11, .88); backdrop-filter: blur(7px); }
.screen-dialog-bar {
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px 0 18px;
  border-bottom: 1px solid var(--line);
  font: 11px var(--font-ui);
}
.screen-dialog-bar button {
  padding: 7px 12px;
  border: 1px solid rgba(108, 173, 214, .28);
  background: transparent;
  color: #9ab7c8;
  cursor: pointer;
}
.screen-dialog picture,
.screen-dialog img { display: block; width: 100%; height: auto; }

/* ---------- 应用场景与部署拓扑（方案 §5.5） ---------- */
.scenarios { padding: 150px 0; }
.scenario-head { display: grid; grid-template-columns: 1.2fr .8fr; gap: 110px; align-items: end; }
.scenario-head .section-index { margin-bottom: 27px; }
.scenario-map {
  margin-top: 75px;
  display: grid;
  grid-template-columns: 1fr 360px;
  min-height: 620px;
  border: 1px solid var(--line);
}
.scenario-tabs {
  grid-column: 1 / 3;
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  min-height: 82px;
  border-bottom: 1px solid var(--line);
  background: rgba(4, 12, 20, .76);
}
.scenario-tab {
  display: grid;
  align-content: center;
  gap: 7px;
  min-width: 0;
  padding: 13px 12px;
  border: 0;
  border-right: 1px solid var(--line);
  background: transparent;
  text-align: left;
  cursor: pointer;
}
.scenario-tab:last-child { border-right: 0; }
.scenario-tab b { color: #466b81; font: 9px var(--font-ui); }
.scenario-tab span { overflow: hidden; color: #859eae; font-size: 11px; line-height: 1.4; text-overflow: ellipsis; white-space: nowrap; }
.scenario-tab.active { box-shadow: inset 0 -2px var(--cyan); background: linear-gradient(180deg, rgba(37, 216, 255, .08), transparent); }
.scenario-tab.active b, .scenario-tab.active span { color: var(--cyan); }
.topology {
  position: relative;
  min-height: 535px;
  overflow: hidden;
  background: radial-gradient(circle at center, rgba(24, 137, 188, .13), transparent 32%);
}
.topology::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .34;
  background-image:
    linear-gradient(rgba(85, 147, 180, .1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(85, 147, 180, .1) 1px, transparent 1px);
  background-size: 31px 31px;
}
.topology-heading {
  position: absolute;
  z-index: 3;
  left: 22px;
  top: 18px;
  display: grid;
  gap: 5px;
}
.topology-heading span { color: #4f758b; font: 8px var(--font-ui); letter-spacing: .14em; }
.topology-heading strong { color: #acc6d4; font: 500 10px var(--font-ui); }
.topology-deployment {
  position: absolute;
  z-index: 4;
  left: 50%;
  top: 82px;
  width: min(290px, 38%);
  padding: 10px 12px;
  transform: translateX(-50%);
  border: 1px solid rgba(37, 216, 255, .32);
  background: rgba(4, 19, 30, .93);
  text-align: center;
}
.topology-deployment span { display: block; color: var(--cyan); font: 7px var(--font-ui); letter-spacing: .14em; }
.topology-deployment strong { display: block; margin-top: 5px; color: #9ec5d7; font: 400 8px/1.45 var(--font-ui); }
.topology-source, .topology-target, .topology-core {
  position: absolute;
  top: 48%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.topology-source, .topology-target {
  width: 154px;
  min-height: 132px;
  padding: 16px 12px;
  border: 1px solid var(--line);
  background: rgba(6, 22, 34, .78);
}
.topology-source { left: 5%; }
.topology-target { right: 5%; border-color: rgba(105, 255, 208, .3); }
.topology-source > svg { width: 38px; height: 38px; margin-bottom: 8px; fill: none; stroke: #79cce9; stroke-width: 1.35; }
.topology-source span, .topology-target span { color: #5c8095; font: 9px var(--font-ui); letter-spacing: .14em; }
.topology-target span { color: var(--green); }
.topology-source strong, .topology-target strong { margin-top: 10px; font-size: 12px; }
.topology-source small, .topology-target small { margin-top: 7px; color: #617d8e; font-size: 8px; }
.topology-core {
  left: 50%;
  z-index: 2;
  width: 150px;
  height: 150px;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(37, 216, 255, .31);
  border-radius: 18px;
  background: linear-gradient(145deg, rgba(10, 56, 76, .9), rgba(3, 14, 22, .9));
  box-shadow: 0 0 55px rgba(37, 216, 255, .12);
}
.topology-core::before, .topology-core::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(37, 216, 255, .13);
  border-radius: 24px;
  animation: spin 16s linear infinite;
}
.topology-core::before { inset: -28px; border-style: dashed; }
.topology-core::after { inset: -53px; animation-direction: reverse; animation-duration: 27s; }
.topology-core svg { width: 40px; fill: none; stroke: var(--cyan); stroke-width: 1.3; }
.topology-core strong { margin-top: 8px; color: var(--cyan); font: 13px var(--font-ui); letter-spacing: .1em; }
.topology-core small { margin-top: 6px; color: #628599; font-size: 8px; }
.topology-core-steps { position: absolute; top: calc(100% + 18px); width: 210px; color: #53798d; font: 7px var(--font-ui); letter-spacing: .12em; }
.topology-link {
  position: absolute;
  top: 48%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}
.topology-link b {
  position: absolute;
  left: 50%;
  top: -30px;
  width: 132px;
  transform: translateX(-50%);
  color: #7ea8bb;
  font: 400 8px var(--font-ui);
  line-height: 1.45;
  text-align: center;
}
.topology-link.is-safe { background: linear-gradient(90deg, transparent, var(--green), transparent); }
.topology-link.is-safe i { background: var(--green); box-shadow: 0 0 8px var(--green); }
.topology-link.is-safe b { color: #72bba5; }
.link-in { left: 24%; right: 59%; }
.link-out { left: 59%; right: 24%; }
.topology-link i {
  position: absolute;
  top: -2px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  animation: topologyPacket 2.2s linear infinite;
}
.topology-link i:nth-child(2) { animation-delay: -.7s; }
.topology-link i:nth-child(3) { animation-delay: -1.4s; }
.topology-audit {
  position: absolute;
  left: auto;
  right: 22px;
  bottom: 28px;
  transform: none;
  width: calc(50% - 34px);
  padding: 14px 17px;
  border-top: 1px solid var(--line);
  text-align: center;
}
.topology-audit > span { display: block; margin-bottom: 7px; color: #4f7f95; font: 7px var(--font-ui); letter-spacing: .14em; }
.topology-audit::before {
  display: none;
}
.topology-audit i { display: inline-block; width: 5px; height: 5px; margin-right: 7px; border-radius: 50%; background: var(--blue); }
.topology-audit strong { font-size: 10px; }
.topology-audit small { display: block; margin-top: 7px; color: #5c7687; font-size: 8px; }

.topology-zone-label {
  position: absolute;
  top: 26%;
  width: 154px;
  color: #496d81;
  font: 7px var(--font-ui);
  letter-spacing: .16em;
  text-align: center;
}
.topology-zone-source { left: 5%; }
.topology-zone-target { right: 5%; color: #4d8a76; }
.topology-access {
  position: absolute;
  left: 22px;
  top: auto;
  bottom: 22px;
  width: calc(50% - 34px);
  padding: 9px 12px;
  transform: none;
  border-top: 1px solid rgba(37, 216, 255, .22);
  text-align: center;
}
.topology-access span { display: block; color: #5f7f92; font: 7px var(--font-ui); letter-spacing: .14em; }
.topology-access strong { display: block; margin-top: 5px; color: #93b3c3; font: 400 8px/1.45 var(--font-ui); }
.topology-cross-boundary, .topology-cross-label { display: none; }
.topology[data-scenario="cross"] .topology-cross-boundary {
  position: absolute;
  left: 50%;
  top: 5%;
  bottom: 26%;
  display: block;
  border-left: 1px dashed rgba(37, 216, 255, .48);
}
.topology[data-scenario="cross"] .topology-cross-label {
  position: absolute;
  left: 50%;
  top: 4%;
  display: block;
  padding: 4px 8px;
  transform: translateX(-50%);
  border: 1px solid rgba(37, 216, 255, .25);
  background: #07131d;
  color: #6392a8;
  font: 7px var(--font-ui);
  letter-spacing: .12em;
}
.scenario-detail { position: relative; padding: 35px 30px 28px; border-left: 1px solid var(--line); background: rgba(5, 14, 23, .68); }
.scenario-detail > span { color: #5c8297; font: 9px var(--font-ui); letter-spacing: .14em; }
.scenario-purpose { float: right; color: #496d81; font: 8px var(--font-ui); font-style: normal; letter-spacing: .12em; }
.scenario-detail h3 { margin: 14px 0 12px; font-size: 25px; }
.scenario-detail > p { min-height: 66px; margin: 0; color: #869baa; font-size: 11px; line-height: 1.8; }
.scenario-detail dl { margin: 19px 0 0; }
.scenario-detail dl > div { padding: 11px 0; border-top: 1px solid var(--line); }
.scenario-detail dt { margin-bottom: 6px; color: #6d8898; font: 10px var(--font-ui); }
.scenario-detail dd { margin: 0; color: #b3c4cf; font-size: 10px; line-height: 1.55; }
.scenario-outcomes { display: grid; gap: 8px; margin-top: 18px; }
.scenario-outcomes > div { padding: 10px 12px; border-left: 2px solid var(--green); background: rgba(105, 255, 208, .035); }
.scenario-outcomes span { display: block; margin-bottom: 4px; color: #5e927f; font: 7px var(--font-ui); letter-spacing: .13em; }
.scenario-outcomes strong { color: #9fcdbd; font: 400 9px/1.5 var(--font-ui); }
.scenario-outcomes .scenario-abnormal { border-left-color: var(--risk); background: rgba(255, 141, 113, .035); }
.scenario-outcomes .scenario-abnormal span { color: #9d7068; }
.scenario-outcomes .scenario-abnormal strong { color: #c7978c; }

/* 七个场景各自使用独立业务舞台，设备形态与文件往返关系不再共用一套抽象拓扑。 */
.scenario-stage {
  position: absolute;
  z-index: 2;
  inset: 128px 22px 165px;
  min-height: 0;
}
.scene-device, .cross-zone, .media-zone {
  position: relative;
  min-width: 0;
  border: 1px solid rgba(83, 146, 176, .25);
  background: linear-gradient(145deg, rgba(8, 30, 44, .94), rgba(3, 15, 24, .9));
  box-shadow: inset 0 1px rgba(255, 255, 255, .02), 0 18px 40px rgba(0, 0, 0, .16);
}
.is-trusted { border-color: rgba(105, 255, 208, .28); background: linear-gradient(145deg, rgba(8, 42, 43, .88), rgba(3, 19, 24, .94)); }
.scene-file { position: relative; display: inline-grid; width: 52px; height: 64px; place-content: center; border: 1px solid rgba(92, 169, 201, .48); border-radius: 3px; background: rgba(10, 46, 64, .86); color: #80bdd3; text-align: center; }
.scene-file::after { content: ""; position: absolute; right: -1px; top: -1px; width: 13px; height: 13px; border-left: 1px solid rgba(92, 169, 201, .48); border-bottom: 1px solid rgba(92, 169, 201, .48); background: #061722; }
.scene-file i { font: 7px var(--font-ui); letter-spacing: .12em; }
.scene-file b { margin-top: 7px; font: 7px var(--font-ui); font-weight: 500; }
.scene-file.is-safe { border-color: rgba(105, 255, 208, .55); background: rgba(12, 61, 57, .68); color: var(--green); box-shadow: 0 0 22px rgba(105, 255, 208, .09); }
.scene-file.is-safe::after { border-color: rgba(105, 255, 208, .5); }
.scene-fdr { position: relative; z-index: 2; display: grid; align-content: center; justify-items: center; min-width: 132px; min-height: 132px; padding: 15px 12px; border: 1px solid rgba(37, 216, 255, .42); border-radius: 16px; background: radial-gradient(circle at 50% 20%, rgba(37, 216, 255, .13), transparent 55%), rgba(4, 22, 34, .96); box-shadow: 0 0 42px rgba(37, 216, 255, .11); text-align: center; }
.scene-fdr::before { content: ""; position: absolute; inset: -7px; border: 1px dashed rgba(37, 216, 255, .16); border-radius: 20px; animation: scenePulse 3s ease-in-out infinite; }
.scene-fdr > span { color: var(--cyan); font: 8px var(--font-ui); letter-spacing: .16em; }
.scene-fdr > strong { margin-top: 8px; color: #d2e4ec; font-size: 11px; }
.scene-fdr > small { margin-top: 7px; color: #6f93a5; font-size: 8px; }
.scene-fdr > i { margin-top: 12px; color: #4e7f95; font: 6px var(--font-ui); font-style: normal; letter-spacing: .08em; white-space: nowrap; }
.scene-route { position: relative; align-self: center; min-width: 54px; height: 34px; border-top: 1px solid rgba(37, 216, 255, .42); color: #78aabc; }
.scene-route::after { content: ""; position: absolute; right: 0; top: -4px; width: 7px; height: 7px; transform: rotate(45deg); border-top: 1px solid currentColor; border-right: 1px solid currentColor; }
.scene-route > span { position: absolute; left: 50%; bottom: calc(100% + 8px); width: 132px; transform: translateX(-50%); font: 7px/1.4 var(--font-ui); text-align: center; }
.scene-route > i { position: absolute; top: -3px; width: 5px; height: 5px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); animation: scenePacket 2.2s linear infinite; }
.scene-route > i:nth-of-type(2) { animation-delay: -1.1s; }
.scene-route.is-safe { border-color: rgba(105, 255, 208, .5); color: #6ac1a5; }
.scene-route.is-safe > i { background: var(--green); box-shadow: 0 0 8px var(--green); }
.scene-route.is-back::after { right: auto; left: 0; transform: rotate(-135deg); }
.scene-route.is-back > i { animation-name: scenePacketBack; }
.scene-stop { position: absolute; left: 50%; bottom: -2px; display: flex; align-items: center; gap: 7px; transform: translateX(-50%); color: #af766c; font: 7px var(--font-ui); white-space: nowrap; }
.scene-stop i { display: grid; width: 17px; height: 17px; place-items: center; border: 1px solid rgba(255, 141, 113, .42); border-radius: 50%; color: var(--risk); font-style: normal; }

/* 01 业务上传：保留浏览器窗口、上传进度与净化后下载状态。 */
.topology[data-scenario="upload"] .scenario-stage { display: grid; grid-template-columns: minmax(155px, 1.25fr) minmax(70px, .6fr) minmax(132px, .9fr) minmax(70px, .6fr) minmax(130px, .85fr); gap: 16px; align-items: center; }
.upload-browser { min-height: 166px; overflow: hidden; }
.browser-bar { display: flex; align-items: center; gap: 5px; height: 28px; padding: 0 10px; border-bottom: 1px solid var(--line); background: rgba(3, 13, 21, .72); }
.browser-bar > i { width: 5px; height: 5px; border-radius: 50%; background: #42677a; }
.browser-bar > span { margin-left: 7px; color: #658799; font: 7px var(--font-ui); }
.browser-upload { display: grid; grid-template-columns: 1fr 56px; align-items: center; gap: 7px 12px; padding: 17px; }
.browser-upload small { color: #7393a4; font-size: 8px; }
.browser-upload .scene-file { grid-column: 2; grid-row: 1 / 4; }
.browser-upload > b { color: #a9c1cd; font: 8px var(--font-ui); font-weight: 500; }
.browser-upload > i { position: relative; height: 3px; overflow: hidden; background: rgba(80, 125, 146, .2); }
.browser-upload > i em { position: absolute; inset: 0 32% 0 0; background: var(--cyan); animation: uploadProgress 3.6s ease-in-out infinite; }
.upload-result { display: grid; min-height: 146px; padding: 16px; place-items: center; text-align: center; }
.upload-result > span { color: #6e9387; font: 7px var(--font-ui); letter-spacing: .12em; }
.upload-result > strong { color: #9bcbbb; font-size: 8px; }

/* 02 邮件：邮件服务器既提交附件，又接收 PureFDR 回投。 */
.topology[data-scenario="mail"] .scenario-stage { display: grid; grid-template-columns: 84px 54px 130px 108px 132px 54px 88px; gap: 10px; align-items: center; }
.topology[data-scenario="mail"] .scenario-stage > .scene-route > span { width: 72px; }
.mail-sender, .mail-inbox { display: grid; min-height: 120px; padding: 14px 8px; place-items: center; text-align: center; }
.mail-sender > span, .mail-inbox > span, .mail-server > span { color: #7494a5; font: 7px var(--font-ui); letter-spacing: .1em; }
.mail-envelope { display: grid; width: 36px; height: 27px; margin: 9px 0; place-items: center; border: 1px solid #5f9db7; color: #8bc5dc; font: 11px var(--font-ui); font-style: normal; }
.mail-inbox .mail-envelope { border-color: rgba(105, 255, 208, .45); color: var(--green); }
.mail-sender small, .mail-inbox small { color: #678595; font-size: 7px; }
.mail-server { display: grid; min-height: 150px; padding: 14px; place-items: center; text-align: center; }
.server-rack, .storage-stack { position: relative; display: block; width: 54px; height: 62px; margin: 10px 0; border: 1px solid #558ba3; background: repeating-linear-gradient(180deg, rgba(49, 112, 140, .22) 0 13px, transparent 13px 19px); }
.server-rack::after, .storage-stack::after { content: ""; position: absolute; right: 6px; top: 7px; width: 4px; height: 4px; border-radius: 50%; background: var(--cyan); box-shadow: 0 19px var(--cyan), 0 38px var(--cyan); }
.mail-server strong { color: #9ab2bf; font: 7px var(--font-ui); font-weight: 500; }
.mail-loop { display: grid; gap: 34px; align-content: center; height: 130px; }
.mail-loop > div { position: relative; padding: 6px 4px; border-top: 1px solid rgba(37, 216, 255, .36); color: #77a9bb; font: 5.5px/1.35 var(--font-ui); text-align: center; white-space: nowrap; }
.mail-loop-back { border-color: rgba(105, 255, 208, .45) !important; color: #70bda4 !important; }
.mail-loop > div::after { content: ""; position: absolute; right: 0; top: -4px; width: 7px; height: 7px; transform: rotate(45deg); border-top: 1px solid currentColor; border-right: 1px solid currentColor; }
.mail-loop-back::after { right: auto !important; left: 0; transform: rotate(-135deg) !important; }
.mail-loop i { position: absolute; top: -3px; width: 5px; height: 5px; border-radius: 50%; background: currentColor; animation: scenePacket 2s linear infinite; }
.mail-loop-back i { animation-name: scenePacketBack; }

/* 03 跨域：左右区域、边界与穿越前后的文件状态同时可见。 */
.topology[data-scenario="cross"] .scenario-stage { left: 12px; right: 12px; }
.cross-zone { position: absolute; top: 0; bottom: 18px; width: 38%; padding: 22px; }
.cross-zone > span { display: block; font: 8px var(--font-ui); letter-spacing: .12em; }
.cross-zone > small { display: block; margin-top: 7px; color: #658292; font-size: 7px; }
.cross-source { left: 0; border-color: rgba(255, 141, 113, .2); background: radial-gradient(circle at 20% 40%, rgba(255, 141, 113, .08), transparent 38%), rgba(17, 20, 28, .88); }
.cross-source > span { color: #b9887d; }
.cross-source .scene-file { position: absolute; left: 24%; top: 50%; transform: translateY(-30%); }
.cross-target { right: 0; padding-left: 23%; border-color: rgba(105, 255, 208, .28); background: radial-gradient(circle at 76% 45%, rgba(105, 255, 208, .09), transparent 42%), rgba(5, 29, 31, .88); }
.cross-target > span { color: #76b39f; }
.cross-target > strong { position: absolute; left: 23%; bottom: 28px; color: #9ccaba; font-size: 8px; }
.cross-boundary { position: absolute; z-index: 3; left: 56%; top: -10px; bottom: 8px; border-left: 3px solid rgba(37, 216, 255, .5); box-shadow: 0 0 24px rgba(37, 216, 255, .2); }
.cross-boundary::before, .cross-boundary::after { content: ""; position: absolute; left: -6px; width: 9px; height: 22px; border: 1px solid rgba(37, 216, 255, .4); background: #061621; }
.cross-boundary::before { top: 22%; }.cross-boundary::after { bottom: 22%; }
.cross-boundary > span { position: absolute; left: 0; top: 10px; padding: 5px 9px; transform: translateX(-50%); background: #061621; color: var(--cyan); font: 7px var(--font-ui); white-space: nowrap; }
.cross-boundary > i { position: absolute; top: 55px; bottom: 0; border-left: 1px dashed rgba(37, 216, 255, .36); }
.topology[data-scenario="cross"] .scene-fdr { position: absolute; left: 35%; top: 50%; width: 140px; transform: translate(-25%, -50%); }
.cross-transfer { position: absolute; z-index: 4; left: 58%; right: 18%; top: 50%; height: 1px; border-top: 1px solid rgba(105, 255, 208, .48); }
.cross-transfer::after { content: ""; position: absolute; right: 0; top: -4px; width: 7px; height: 7px; transform: rotate(45deg); border-top: 1px solid var(--green); border-right: 1px solid var(--green); }
.cross-transfer > span { position: absolute; left: 50%; bottom: 12px; width: 160px; transform: translateX(-50%); color: #75b69f; font: 7px/1.4 var(--font-ui); text-align: center; }
.cross-transfer .scene-file { position: absolute; left: 48%; top: -31px; transform: scale(.72); animation: crossFile 3s ease-in-out infinite; }

/* 04 存储：同一服务器形成提交与回写的双向闭环。 */
.topology[data-scenario="storage"] .scenario-stage { display: grid; grid-template-columns: minmax(210px, 1.2fr) minmax(150px, .9fr) minmax(132px, .78fr); gap: 25px; align-items: center; }
.storage-server { display: grid; grid-template-columns: 70px 1fr; grid-template-rows: auto 1fr 1fr; gap: 7px 12px; min-height: 180px; padding: 16px; }
.storage-server > span { grid-column: 1 / 3; color: #82a5b6; font: 8px var(--font-ui); letter-spacing: .1em; }
.storage-stack { grid-row: 2 / 4; width: 62px; height: 86px; margin: 0; }
.storage-server > div { display: grid; align-content: center; padding: 7px 9px; border: 1px solid var(--line); background: rgba(3, 14, 22, .5); }
.storage-server b { overflow: hidden; color: #a6bac5; font: 7px var(--font-ui); text-overflow: ellipsis; }
.storage-server em { margin-top: 5px; color: #b77f74; font: 6px var(--font-ui); font-style: normal; }
.storage-server em.safe { color: var(--green); }
.storage-routes { display: grid; gap: 42px; align-content: center; }
.storage-state { position: absolute; left: 17px; bottom: 12px; display: flex; align-items: center; gap: 8px; padding: 6px 8px; background: rgba(3, 15, 23, .88); font: 7px var(--font-ui); }
.storage-state span { color: #638697; }.storage-state b { color: #b77f74; }.storage-state i { color: #668999; font-style: normal; }.storage-state strong { color: var(--green); }

/* 04 业务系统嵌入：业务流自身闭环，PureFDR 作为旁接净化节点。 */
.topology[data-scenario="api"] .scenario-stage { display: grid; grid-template-columns: minmax(390px, 1.5fr) minmax(210px, .78fr); gap: 34px; align-items: center; }
.business-loop { position: relative; min-height: 190px; padding: 18px 20px 28px; border: 1px solid rgba(83, 146, 176, .25); background: radial-gradient(circle at 52% 45%, rgba(37, 216, 255, .06), transparent 48%), rgba(5, 22, 34, .86); }
.business-loop-title { display: flex; align-items: baseline; justify-content: space-between; padding-bottom: 12px; border-bottom: 1px solid var(--line); }
.business-loop-title span { color: #b1c7d2; font-size: 10px; }
.business-loop-title small { color: #587b8c; font: 6px var(--font-ui); }
.business-cycle { display: grid; grid-template-columns: 1fr 20px 1fr 20px 1fr 20px 1fr; align-items: center; gap: 5px; margin-top: 22px; }
.business-node { position: relative; display: grid; min-height: 78px; align-content: center; padding: 9px; border: 1px solid rgba(86, 145, 171, .2); background: rgba(4, 17, 26, .74); text-align: center; }
.business-node b { color: #4e7487; font: 6px var(--font-ui); }.business-node span { margin-top: 6px; color: #a8bec9; font-size: 8px; }.business-node small { margin-top: 6px; color: #5e7e8e; font-size: 6px; }
.business-node > em { position: absolute; left: 50%; bottom: -3px; width: 5px; height: 5px; transform: translateX(-50%); border-radius: 50%; background: var(--cyan); box-shadow: 0 0 9px var(--cyan); opacity: 0; }
.business-node:nth-of-type(1) { animation: businessNodeCycle 10s ease-in-out infinite; }
.business-node:nth-of-type(2) { animation: businessNodeCycle 10s 1.5s ease-in-out infinite; }
.business-node:nth-of-type(3) { animation: businessNodeSafeCycle 10s 6.2s ease-in-out infinite; }
.business-node:nth-of-type(4) { animation: businessNodeSafeCycle 10s 7.6s ease-in-out infinite; }
.business-node:nth-of-type(1) > em { animation: businessNodeDot 10s ease-in-out infinite; }
.business-node:nth-of-type(2) > em { animation: businessNodeDot 10s 1.5s ease-in-out infinite; }
.business-node:nth-of-type(3) > em, .business-node:nth-of-type(4) > em { background: var(--green); box-shadow: 0 0 9px var(--green); }
.business-node:nth-of-type(3) > em { animation: businessNodeDot 10s 6.2s ease-in-out infinite; }
.business-node:nth-of-type(4) > em { animation: businessNodeDot 10s 7.6s ease-in-out infinite; }
.business-node.is-gateway { border-color: rgba(37, 216, 255, .45); box-shadow: 0 0 24px rgba(37, 216, 255, .08); }
.business-node.is-gateway::after { content: "API"; position: absolute; left: 50%; bottom: -16px; padding: 3px 7px; transform: translateX(-50%); background: #071923; color: var(--cyan); font: 5px var(--font-ui); }
.business-node.is-safe { border-color: rgba(105, 255, 208, .25); }.business-node.is-safe b, .business-node.is-safe span { color: #77b49f; }
.business-arrow { color: #4e8298; font: 12px var(--font-ui); font-style: normal; text-align: center; animation: businessArrowCycle 10s ease-in-out infinite; }
.business-arrow:nth-of-type(1) { animation-delay: .9s; }
.business-arrow:nth-of-type(2) { animation-delay: 5.6s; }
.business-arrow:nth-of-type(3) { animation-delay: 7s; }
.business-loopback { position: absolute; left: 12%; right: 12%; bottom: 9px; display: flex; align-items: center; justify-content: center; gap: 9px; border-bottom: 1px solid rgba(105, 255, 208, .26); color: #629681; font: 6px var(--font-ui); }
.business-loopback::before { content: ""; position: absolute; left: 0; bottom: -1px; height: 18px; border-left: 1px solid rgba(105, 255, 208, .26); }
.business-loopback i { color: var(--green); font: 13px var(--font-ui); font-style: normal; }
.business-loopback > em { position: absolute; right: 0; bottom: -3px; width: 5px; height: 5px; border-radius: 50%; background: var(--green); box-shadow: 0 0 8px var(--green); opacity: 0; animation: businessLoopbackPacket 10s 8.4s linear infinite; }
.business-fdr-bridge { position: relative; display: grid; justify-items: center; gap: 7px; }
.business-fdr-bridge .scene-fdr { width: 158px; min-height: 134px; }
.business-fdr-bridge .scene-fdr::before { animation: businessFdrState 10s 3.1s ease-in-out infinite; }
.business-submit, .business-callback { display: flex; align-items: center; gap: 7px; color: #6e9aad; font: 6px var(--font-ui); text-align: center; }
.business-submit i, .business-callback i { color: var(--cyan); font: 11px var(--font-ui); font-style: normal; }
.business-callback { color: #67a88f; }.business-callback i { color: var(--green); }
.business-submit, .business-callback { position: relative; }
.business-submit > em, .business-callback > em { position: absolute; top: 50%; width: 5px; height: 5px; border-radius: 50%; opacity: 0; }
.business-submit > em { left: 0; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); animation: businessSubmitPacket 10s 2.6s linear infinite; }
.business-callback > em { right: 0; background: var(--green); box-shadow: 0 0 8px var(--green); animation: businessCallbackPacket 10s 4.8s linear infinite; }
.business-fdr-bridge::before { content: ""; position: absolute; left: -34px; top: 50%; width: 34px; border-top: 1px dashed rgba(37, 216, 255, .35); }

/* 05 终端监测与防御：突出主机内安装的客户端和文件夹变化事件。 */
.topology[data-scenario="endpoint"] .scenario-stage { display: grid; grid-template-columns: minmax(320px, 1.55fr) minmax(135px, .7fr) minmax(145px, .72fr); gap: 28px; align-items: center; }
.endpoint-host { min-height: 214px; padding: 14px; border-color: rgba(37, 216, 255, .34); box-shadow: inset 0 0 40px rgba(37, 216, 255, .035), 0 18px 40px rgba(0, 0, 0, .2); }
.endpoint-title { position: relative; display: grid; grid-template-columns: 30px 1fr auto; align-items: center; border-bottom: 1px solid rgba(37, 216, 255, .18); padding-bottom: 12px; }
.endpoint-title > i { grid-row: 1 / 3; width: 23px; height: 17px; border: 1px solid #64a9c4; box-shadow: 0 9px 0 -6px #64a9c4, 0 0 14px rgba(37, 216, 255, .12); }
.endpoint-title span { color: #c4d9e2; font-size: 10px; }.endpoint-title small { margin-top: 3px; color: #6d96a8; font-size: 7px; }
.endpoint-title em { grid-column: 3; grid-row: 1 / 3; padding: 5px 7px; border: 1px solid rgba(105, 255, 208, .28); color: var(--green); font: 5px var(--font-ui); font-style: normal; letter-spacing: .08em; }
.endpoint-folder { position: relative; display: grid; width: 55%; min-height: 120px; align-content: start; margin-top: 14px; padding: 14px 12px; border: 1px solid rgba(84, 151, 179, .28); background: rgba(2, 14, 23, .62); color: #7798a8; font-size: 8px; }
.folder-icon { position: relative; width: 32px; height: 22px; margin-bottom: 9px; border: 1px solid #659eb6; background: rgba(37, 216, 255, .04); }
.folder-icon::before { content: ""; position: absolute; left: -1px; top: -7px; width: 15px; height: 7px; border: 1px solid #659eb6; border-bottom: 0; }
.endpoint-folder > small { margin-top: 5px; color: #58798a; font-size: 6px; }
.folder-event { position: absolute; left: 11px; right: 11px; bottom: 10px; display: grid; grid-template-columns: 7px 1fr; align-items: center; gap: 3px 6px; padding-top: 7px; border-top: 1px dashed rgba(37, 216, 255, .2); }
.folder-event > i { grid-row: 1 / 3; width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 8px var(--cyan); animation: blink 1.3s infinite; }
.folder-event span { color: #6d9daf; font: 5px var(--font-ui); }.folder-event b { color: #b1c8d2; font: 6px var(--font-ui); font-weight: 500; }
.endpoint-agent { position: absolute; right: 14px; bottom: 15px; display: grid; width: 40%; min-height: 120px; align-content: center; padding: 13px; border: 1px solid rgba(37, 216, 255, .42); border-left: 3px solid var(--cyan); background: radial-gradient(circle at 20% 20%, rgba(37, 216, 255, .1), transparent 55%), rgba(5, 28, 40, .94); box-shadow: 0 0 26px rgba(37, 216, 255, .08); }
.endpoint-agent span { color: var(--cyan); font: 7px var(--font-ui); letter-spacing: .08em; }.endpoint-agent b { margin-top: 8px; color: #b3cad4; font: 8px/1.4 var(--font-ui); font-weight: 500; }.endpoint-agent small { margin-top: 7px; color: #7091a1; font-size: 6px; }
.endpoint-agent > i { position: relative; height: 2px; margin-top: 11px; overflow: hidden; background: rgba(37, 216, 255, .12); }.endpoint-agent > i em { position: absolute; inset: 0 65% 0 0; background: var(--cyan); animation: endpointMonitor 2.2s ease-in-out infinite; }
.endpoint-routes { display: grid; gap: 43px; align-content: center; }
.endpoint-return { position: absolute; left: 16%; bottom: 8px; display: flex; align-items: center; gap: 5px; color: var(--green); font: 6px var(--font-ui); }.endpoint-return .scene-file { transform: scale(.5); }

/* 07 移动介质：U 盘、交换工作站和内部受控区按导入顺序展开。 */
.topology[data-scenario="media"] .scenario-stage { display: grid; grid-template-columns: 78px 54px 116px 54px 132px 54px minmax(112px, 1fr); gap: 10px; align-items: center; }
.usb-device { display: grid; justify-items: center; color: #8eb0c0; text-align: center; }
.usb-device > i { position: relative; width: 42px; height: 82px; border: 1px solid #659db5; border-radius: 5px 5px 11px 11px; background: linear-gradient(180deg, rgba(31, 95, 121, .36), rgba(5, 27, 40, .9)); }
.usb-device > i::before { content: ""; position: absolute; left: 11px; top: -17px; width: 18px; height: 17px; border: 1px solid #659db5; border-bottom: 0; background: repeating-linear-gradient(90deg, transparent 0 4px, #659db5 4px 6px); }
.usb-device > i::after { content: "↧"; position: absolute; inset: 0; display: grid; place-items: center; color: var(--cyan); font: 20px var(--font-ui); }
.usb-device b { margin-top: 9px; font-size: 9px; }.usb-device small { margin-top: 4px; color: #5f7d8e; font-size: 6px; }
.media-station { display: grid; min-height: 132px; place-items: center; padding: 12px 8px; text-align: center; }.media-station span { color: #a5bdc8; font-size: 8px; }.media-station > i { display: grid; width: 54px; height: 39px; margin: 8px 0; place-items: center; border: 1px solid #568da5; color: var(--cyan); font-style: normal; }.media-station small { color: #638292; font-size: 6px; }
.media-zone { display: grid; min-height: 150px; padding: 14px; place-items: center; text-align: center; }.media-zone > span { color: #78ad9b; font: 7px var(--font-ui); letter-spacing: .08em; }.media-zone > strong { color: #9dcdba; font-size: 8px; }

@keyframes scenePacket { from { left: 0; } to { left: 100%; } }
@keyframes scenePacketBack { from { left: 100%; } to { left: 0; } }
@keyframes scenePulse { 50% { opacity: .42; transform: scale(1.025); } }
@keyframes uploadProgress { 50% { right: 7%; } }
@keyframes crossFile { 0%, 15% { left: 0; opacity: .15; } 42%, 75% { opacity: 1; } 90%, 100% { left: 92%; opacity: .15; } }
@keyframes endpointMonitor { 50% { left: 62%; right: 0; } }
@keyframes businessNodeCycle { 0%, 12%, 100% { border-color: rgba(86, 145, 171, .2); box-shadow: none; } 4%, 9% { border-color: rgba(37, 216, 255, .65); box-shadow: 0 0 24px rgba(37, 216, 255, .13); } }
@keyframes businessNodeSafeCycle { 0%, 12%, 100% { border-color: rgba(105, 255, 208, .25); box-shadow: none; } 4%, 9% { border-color: rgba(105, 255, 208, .7); box-shadow: 0 0 24px rgba(105, 255, 208, .13); } }
@keyframes businessNodeDot { 0%, 3%, 12%, 100% { opacity: 0; } 5%, 9% { opacity: 1; } }
@keyframes businessArrowCycle { 0%, 3%, 14%, 100% { color: #4e8298; text-shadow: none; } 5%, 10% { color: var(--cyan); text-shadow: 0 0 8px var(--cyan); } }
@keyframes businessFdrState { 0%, 18%, 100% { opacity: .35; transform: none; } 4%, 14% { opacity: 1; transform: none; border-color: rgba(37, 216, 255, .48); } }
@keyframes businessSubmitPacket { 0%, 2%, 18%, 100% { left: 0; opacity: 0; } 5% { opacity: 1; } 14% { left: calc(100% - 5px); opacity: 1; } 17% { opacity: 0; } }
@keyframes businessCallbackPacket { 0%, 2%, 18%, 100% { right: 0; opacity: 0; } 5% { opacity: 1; } 14% { right: calc(100% - 5px); opacity: 1; } 17% { opacity: 0; } }
@keyframes businessLoopbackPacket { 0%, 2%, 15%, 100% { right: 0; opacity: 0; } 4% { opacity: 1; } 12% { right: calc(100% - 5px); opacity: 1; } 14% { opacity: 0; } }

/* ---------- 产品功能演示视频（方案 §5.6） ---------- */
.demo {
  padding: 150px 0;
  background: linear-gradient(180deg, #050c14, #03070d);
  border-top: 1px solid var(--line);
}
.demo-heading { display: grid; grid-template-columns: 220px 1fr .72fr; align-items: start; gap: 42px; }
.demo-heading p { margin: 5px 0 0; color: #899eae; font-size: 14px; line-height: 1.9; }
.video-stage {
  margin-top: 76px;
  display: grid;
  grid-template-columns: 1fr 360px;
  min-height: 570px;
  border: 1px solid var(--line);
  background: #050d15;
}
.video-frame {
  position: relative;
  min-width: 0;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: radial-gradient(circle at center, rgba(26, 136, 187, .12), transparent 36%), #02060a;
}
.video-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .27;
  background-image:
    linear-gradient(rgba(85, 147, 180, .1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(85, 147, 180, .1) 1px, transparent 1px);
  background-size: 42px 42px;
}
.video-frame video { position: relative; z-index: 3; width: 100%; height: 100%; object-fit: contain; background: #000; }
.video-frame video:not([src]) { display: none; }
.video-placeholder {
  position: absolute;
  z-index: 2;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.video-radar {
  position: relative;
  width: 126px;
  height: 126px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(37, 216, 255, .21);
  border-radius: 50%;
}
.video-radar i {
  position: absolute;
  inset: 15px;
  border: 1px solid rgba(37, 216, 255, .15);
  border-radius: 50%;
  animation: radarPulse 3s ease-out infinite;
}
.video-radar i:nth-child(2) { animation-delay: -1s; }
.video-radar i:nth-child(3) { animation-delay: -2s; }
.video-radar b {
  z-index: 2;
  width: 50px;
  height: 50px;
  display: grid;
  place-items: center;
  padding-left: 3px;
  border: 1px solid rgba(37, 216, 255, .45);
  border-radius: 50%;
  color: var(--cyan);
  font-size: 13px;
  background: rgba(9, 49, 68, .7);
  box-shadow: 0 0 28px rgba(37, 216, 255, .16);
}
.video-placeholder > strong { margin-top: 25px; font-size: 18px; }
.video-placeholder > p { max-width: 430px; margin: 10px 20px 20px; color: #6f899b; font-size: 12px; line-height: 1.65; }
.video-load {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 12px 16px;
  border: 1px solid rgba(37, 216, 255, .35);
  color: #cce8f4;
  font-size: 11px;
  cursor: pointer;
  background: rgba(25, 121, 163, .08);
}
.video-load span { color: var(--cyan); font-size: 17px; }
.video-internal-note { margin-top: 11px; color: #496778; font: 8px var(--font-ui); }
.video-reset {
  position: absolute;
  z-index: 4;
  right: 12px;
  top: 12px;
  padding: 9px 12px;
  border: 1px solid rgba(255, 255, 255, .25);
  background: rgba(0, 0, 0, .72);
  font-size: 10px;
  cursor: pointer;
}
.video-chapters { display: flex; flex-direction: column; border-left: 1px solid var(--line); }
.chapter-head {
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  border-bottom: 1px solid var(--line);
  color: #648294;
  font: 9px var(--font-ui);
  letter-spacing: .12em;
}
.chapter-head small { letter-spacing: 0; font-size: 10px; }
.chapter {
  flex: 1;
  display: grid;
  grid-template-columns: 29px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 0 20px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  text-align: left;
  cursor: pointer;
}
.chapter:last-child { border-bottom: 0; }
.chapter > b { color: #496b7e; font: 9px var(--font-ui); }
.chapter strong, .chapter small { display: block; }
.chapter strong { font-size: 11px; }
.chapter small { margin-top: 6px; color: #5d7788; font-size: 8px; }
.chapter > span { color: #4e7083; font: 8px var(--font-ui); }
.chapter.active { background: linear-gradient(90deg, rgba(37, 216, 255, .1), transparent); }
.chapter.active > b, .chapter.active strong, .chapter.active > span { color: var(--cyan); }

/* ---------- POC 行动区（方案 §5.7） ---------- */
.contact {
  position: relative;
  min-height: 600px;
  display: grid;
  grid-template-columns: 1.25fr .75fr;
  align-items: center;
  gap: 120px;
  overflow: hidden;
}
.contact::before {
  content: "";
  position: absolute;
  z-index: -1;
  left: 50%;
  top: 50%;
  width: 620px;
  height: 620px;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(37, 216, 255, .12);
  border-radius: 50%;
  box-shadow: 0 0 120px rgba(37, 216, 255, .08);
}
.contact-grid {
  position: absolute;
  z-index: -2;
  inset: 0;
  opacity: .3;
  background-image:
    linear-gradient(rgba(85, 147, 180, .1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(85, 147, 180, .1) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: radial-gradient(circle, black, transparent 72%);
}
.contact-copy > span { display: block; margin-bottom: 27px; color: #5f8195; font: 9px var(--font-ui); letter-spacing: .16em; }
.contact-copy p { max-width: 700px; margin: 26px 0 0; color: #849aaa; font-size: 14px; line-height: 1.9; }
.contact-steps { border-top: 1px solid var(--line); }
.contact-steps > div {
  display: grid;
  grid-template-columns: 45px 1fr;
  align-items: center;
  min-height: 60px;
  border-bottom: 1px solid var(--line);
}
.contact-steps b { color: var(--cyan); font: 600 13px var(--font-ui); }
.contact-steps span { font-size: 12px; }
.contact-steps .button { margin-top: 30px; width: 100%; }

/* ---------- 页脚 ---------- */
.site-footer {
  min-height: 104px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 max(48px, calc((100vw - 1480px) / 2));
  border-top: 1px solid var(--line);
  color: #728796;
}
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-brand b { color: #d7e8f1; font-size: 15px; }
.footer-brand span { font-size: 10px; }
.site-footer p { font: 8px var(--font-ui); }
.site-footer > a { justify-self: end; font-size: 10px; }

/* ---------- POC 申请产品验证页（poc.html） ---------- */
.required-mark { color: var(--risk); }
.poc-main { padding: calc(var(--header-height) + 70px) 0 130px; }
.poc-head { max-width: 780px; }
.poc-head .section-index { margin-bottom: 24px; }
.poc-head h1 {
  margin: 0;
  font-size: clamp(38px, 3.6vw, 56px);
  line-height: 1.16;
  font-weight: 640;
}
.poc-head h1 span { color: var(--cyan); }
.poc-head > p { margin: 24px 0 0; color: #8fa4b4; font-size: 15px; line-height: 1.9; }
.poc-layout {
  margin-top: 70px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 380px;
  gap: 70px;
  align-items: start;
}

/* 表单 */
.poc-form {
  border: 1px solid var(--line);
  background: var(--bg-soft);
  padding: 44px 44px 40px;
}
.poc-form h2 { margin: 0 0 8px; font-size: 20px; }
.poc-form > p { margin: 0 0 34px; color: #718a9c; font-size: 12px; line-height: 1.7; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 26px 30px; }
.form-field { display: flex; flex-direction: column; min-width: 0; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { margin-bottom: 10px; font-size: 12px; color: #b9c8d3; }
.form-field label .required { color: var(--risk); margin-left: 4px; }
.form-field input[type="text"],
.form-field input[type="email"],
.form-field input[type="tel"],
.form-field textarea {
  width: 100%;
  padding: 13px 14px;
  border: 1px solid var(--line);
  background: rgba(3, 10, 17, .7);
  color: var(--text);
  font-size: 13px;
  transition: border-color var(--transition-fast);
}
.form-field textarea { min-height: 120px; resize: vertical; line-height: 1.7; }
.form-field input:focus, .form-field textarea:focus { border-color: var(--line-strong); outline: none; }
.form-field input:focus-visible, .form-field textarea:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }
.form-field .field-error {
  display: none;
  margin-top: 8px;
  color: var(--risk);
  font-size: 11px;
}
.form-field.invalid input, .form-field.invalid textarea { border-color: rgba(255, 141, 113, .6); }
.form-field.invalid .field-error { display: block; }
.form-fieldset {
  grid-column: 1 / -1;
  margin: 0;
  padding: 0;
  border: 0;
}
.form-fieldset legend { margin-bottom: 12px; padding: 0; font-size: 12px; color: #b9c8d3; }
.form-fieldset legend .required { color: var(--risk); margin-left: 4px; }
.scenario-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.scenario-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 12px;
  border: 1px solid var(--line);
  background: rgba(3, 10, 17, .5);
  font-size: 12px;
  color: #9db1bf;
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}
.scenario-option:hover { border-color: var(--line-strong); }
.scenario-option input { accent-color: var(--cyan); width: 14px; height: 14px; margin: 0; flex: none; }
.scenario-option:has(input:checked) { border-color: rgba(37, 216, 255, .5); color: var(--text); }
.form-fieldset .field-error { display: none; margin-top: 10px; color: var(--risk); font-size: 11px; }
.form-fieldset.invalid .field-error { display: block; }
.poc-submit { margin-top: 34px; width: 100%; }
.poc-form-note { margin: 18px 0 0; color: #728796; font-size: 11px; line-height: 1.7; }

/* 提交后的演示环境提示 */
.poc-notice {
  display: none;
  margin-top: 26px;
  padding: 18px 20px;
  border: 1px solid rgba(98, 211, 255, .42);
  background: rgba(25, 132, 203, .08);
  color: #bfe3f2;
  font-size: 13px;
  line-height: 1.8;
}
.poc-notice.show { display: block; }
.poc-notice strong { color: var(--cyan); }

/* 侧栏：验证流程 */
.poc-aside { position: sticky; top: calc(var(--header-height) + 30px); }
.poc-aside h2 { margin: 0 0 6px; font-size: 16px; }
.poc-aside > p { margin: 0 0 26px; color: #718a9c; font-size: 12px; line-height: 1.7; }
.poc-steps { border-top: 1px solid var(--line); }
.poc-steps > div {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 4px 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.poc-steps b { grid-row: 1/3; align-self: center; color: var(--cyan); font: 600 16px var(--font-ui); }
.poc-steps strong { font-size: 13px; font-weight: 600; }
.poc-steps span { color: #718a9c; font-size: 11px; line-height: 1.6; }
.poc-aside-note {
  margin-top: 26px;
  padding: 16px 18px;
  border-left: 2px solid var(--cyan);
  background: rgba(25, 132, 203, .06);
  color: #8fa4b4;
  font-size: 12px;
  line-height: 1.8;
}

/* ---------- 关键帧 ---------- */
@keyframes blink { 50% { opacity: .35; } }
@keyframes dash { to { stroke-dashoffset: -32; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes treeReveal { from { opacity: 0; transform: translateX(-16px); } to { opacity: 1; transform: none; } }
@keyframes riskReject { 50% { opacity: .18; } }
@keyframes surfaceScan { to { top: 120%; } }
@keyframes topologyPacket { from { left: 0; } to { left: 100%; } }
@keyframes radarPulse {
  0% { transform: scale(.55); opacity: 0; }
  35% { opacity: .55; }
  100% { transform: scale(1.45); opacity: 0; }
}

/* ---------- 响应式（方案 §8.1/§8.2） ---------- */
@media (max-width: 1250px) {
  :root { --container: min(1120px, calc(100vw - 56px)); }
  .hero-body { grid-template-columns: minmax(340px, .88fr) minmax(480px, 1.12fr); gap: 25px; margin-top: 38px; }
  .hero-wordmark { font-size: clamp(62px, 7.1vw, 84px); }
  .hero h1 { font-size: clamp(40px, 4.5vw, 52px); }
  .hero-proof { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero-proof > div:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .hero-proof > div:nth-child(4) { border-top: 1px solid var(--line); }
  .hero-system { height: 590px; }
  .sanitize-overview { height: 590px; }
  .sanitize-workspace { grid-template-columns: minmax(122px, .78fr) 30px minmax(210px, 1.42fr) 30px minmax(135px, .86fr); }
  .pipeline-canvas { height: 499px; }
  .th-queue { width: 150px; }
  .th-infocard { width: 178px; }
  .th-lane-l { left: 188px; }
  .th-lane-r { right: 188px; }
  .quarantine-slot { max-width: 220px; }
  .system-status small { display: none; }
  .section-intro, .demo-heading { grid-template-columns: 170px 1.2fr .8fr; }
  .process-experience { grid-template-columns: 210px 1fr; }
  .scenario-map { grid-template-columns: 1fr 320px; }
  .video-stage { grid-template-columns: 1fr 330px; }
  .platform-inner { gap: 44px; }
  .poc-layout { grid-template-columns: minmax(0, 1fr) 330px; gap: 45px; }
}

@media (max-width: 980px) {
  :root { --container: calc(100vw - 40px); }
  .stream-line { display: none; }
  .site-header { grid-template-columns: 1fr auto; padding: 0 20px; }
  .desktop-nav, .header-cta { display: none; }
  .menu-toggle {
    display: flex;
    width: 42px;
    height: 42px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 7px;
    border: 1px solid var(--line);
    background: transparent;
    cursor: pointer;
  }
  .menu-toggle span { width: 18px; height: 1px; background: #b8d4e3; transition: transform var(--transition-fast); }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(4px) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .mobile-nav {
    position: absolute;
    display: flex;
    left: 0;
    right: 0;
    top: 100%;
    flex-direction: column;
    padding: 15px 20px 25px;
    border-bottom: 1px solid var(--line);
    background: rgba(3, 7, 13, .98);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  }
  .mobile-nav.open { opacity: 1; visibility: visible; transform: none; }
  /* 菜单展开时的全屏深色遮罩：点击或滚动收起（app.js 控制） */
  .nav-scrim {
    position: fixed;
    inset: 0;
    z-index: 40;
    background: rgba(3, 7, 13, .72);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast), visibility var(--transition-fast);
  }
  .nav-scrim.show { opacity: 1; visibility: visible; }
  .mobile-nav a { padding: 13px 0; border-bottom: 1px solid var(--line); font-size: 13px; }
  .hero { min-height: auto; padding: 130px 0 90px; display: block; }
  .hero-body { display: block; }
  .hero-copy { padding: 0; }
  .hero-copy { max-width: 760px; }
  .hero-wordmark { font-size: clamp(72px, 11vw, 96px); }
  .hero h1 { font-size: clamp(42px, 7vw, 58px); }
  .hero-proof { grid-template-columns: repeat(4, minmax(0, 1fr)); max-width: 680px; }
  .hero-proof > div:nth-child(3) { border-left: 1px solid var(--line); border-top: 0; }
  .hero-proof > div:nth-child(4) { border-top: 0; }
  .hero-system { height: 570px; margin-top: 70px; }
  .sanitize-overview { height: 590px; }
  .th-seg small { display: none; }
  .th-queue { width: 140px; }
  .th-infocard { width: 172px; }
  .th-lane-l { left: 176px; }
  .th-lane-r { right: 176px; }
  .hero-scroll { display: none; }
  .trust-rail { display: none; }
  .technology, .scenarios, .demo, .platform { padding: 105px 0; }
  .section-intro, .demo-heading { grid-template-columns: 1fr; }
  .section-intro h2, .demo-heading h2 { margin-top: 15px; }
  .section-intro > p, .demo-heading p { max-width: 680px; }
  .process-experience { grid-template-columns: 1fr; min-height: 0; }
  .process-rail { flex-direction: row; border-right: 0; border-bottom: 1px solid var(--line); overflow: auto; }
  .process-tab { min-width: 155px; height: 90px; border-right: 1px solid var(--line); border-bottom: 0; padding: 15px; }
  .process-visual { min-height: 590px; }
  .platform-inner { grid-template-columns: 1fr; }
  .platform-copy { max-width: 760px; }
  .product-surface { transform: none; }
  .scenario-head { grid-template-columns: 1fr; gap: 25px; }
  .scenario-head > p { max-width: 700px; }
  .scenario-map { grid-template-columns: 1fr; }
  .scenario-tabs { grid-column: auto; grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .scenario-tab:nth-child(4) { border-right: 0; }
  .scenario-detail { grid-column: auto; border-left: 0; border-top: 1px solid var(--line); padding: 34px; }
  .scenario-detail > p { min-height: auto; }
  .scenario-detail dl { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 25px; }
  .video-stage { grid-template-columns: 1fr; }
  .video-chapters { border-left: 0; border-top: 1px solid var(--line); }
  .chapter { min-height: 78px; }
  .contact { min-height: 650px; grid-template-columns: 1fr; gap: 60px; padding: 110px 0; }
  .contact-steps { max-width: 560px; }
  .site-footer { grid-template-columns: 1fr auto; gap: 20px; padding: 25px 20px; }
  .site-footer p { display: none; }
  .poc-layout { grid-template-columns: 1fr; }
  .poc-aside { position: static; }
}

@media (max-width: 780px) {
  .scenario-map { grid-template-columns: 1fr; }
  .scenario-tabs {
    min-height: 210px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .scenario-tab { border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 11px 12px; }
  .scenario-detail { grid-column: auto; }
}

@media (max-width: 640px) {
  :root { --container: calc(100vw - 30px); }
  .brand small { display: none; }
  /* 压缩首屏纵向节奏，让 844 高度内露出动画面板约一半 */
  .hero { padding-top: 96px; }
  .hero-eyebrow { margin-bottom: 27px; font-size: 8px; letter-spacing: .14em; }
  .hero-eyebrow i { width: 28px; }
  .hero-wordmark { font-size: clamp(60px, 18vw, 74px); }
  .hero h1 { margin-top: 18px; font-size: clamp(38px, 11.5vw, 48px); line-height: 1.15; white-space: normal; }
  .hero-tagline { margin-top: 25px; font-size: 16px; }
  .hero-intro { font-size: 14px; line-height: 1.8; }
  .hero-actions { align-items: stretch; flex-direction: column; gap: 10px; }
  .hero-actions .button { justify-content: space-between; width: 100%; }
  .hero-proof { grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: 30px; }
  .hero-proof > div:nth-child(3) { border-left: 0; border-top: 1px solid var(--line); }
  .hero-proof > div:nth-child(4) { border-top: 1px solid var(--line); }
  .hero-system { height: 560px; margin-top: 36px; }
  .sanitize-overview { height: auto; min-height: 700px; }
  .sanitize-head { height: 54px; padding: 0 12px; }
  .sanitize-head > div { display: grid; gap: 2px; }
  .sanitize-head span { font-size: 7px; }
  .sanitize-track { grid-template-columns: repeat(5, minmax(0, 1fr)); padding: 10px 5px 17px; }
  .sanitize-track button { padding: 0 3px 12px; text-align: center; }
  .sanitize-track button b { font-size: 8px; }
  .sanitize-track button span { font-size: 8px; }
  .sanitize-track button small { display: none; }
  .sanitize-workspace {
    height: auto;
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 18px 12px 12px;
  }
  .sanitize-flow { height: 24px; transform: rotate(90deg); }
  .sanitize-flow span { display: none; }
  .sanitize-zone { min-height: 148px; }
  .sanitize-file { padding: 14px 10px 8px; }
  .sanitize-file svg { width: 38px; height: 46px; }
  .sanitize-source-state { margin-top: 5px; padding-top: 6px; }
  .sanitize-engine { min-height: 245px; }
  .sanitize-facts { grid-template-columns: 1fr 1fr; }
  .sanitize-facts span:nth-child(n+5) { display: none; }
  .sanitize-objects { grid-template-columns: repeat(2, minmax(0, 1fr)); padding-right: 104px; }
  .sanitize-objects > span:nth-child(n+5) { display: none; }
  .sanitize-rebuild { bottom: 44px; }
  .sanitize-validation { left: 12px; bottom: 8px; grid-template-columns: repeat(3, auto); }
  .sanitize-output { min-height: 160px; }
  .sanitize-disposition { height: auto; min-height: 54px; flex-wrap: wrap; padding: 9px 12px; }
  .sanitize-disposition em { flex-basis: 100%; margin-left: 0; text-align: left; }
  .sanitize-note { padding: 8px 12px 12px; }
  .system-topline { padding: 0 10px; }
  .system-topline span:first-child { display: none; }
  .pipeline-canvas { height: 470px; }
  /* 移动端首屏剧场：只留相位条（压缩）+ 舞台 + 隔离区，坐标整体收紧（方案 §8.2） */
  .th-queue, .th-infocard, .th-purified, .th-lane, .th-rings, .th-scan, .hud-corner { display: none; }
  .th-ribbon { left: 10px; right: 10px; top: 8px; gap: 4px; }
  .th-seg { padding: 4px 5px 8px; }
  .th-seg small { display: none; }
  .th-seg span { font-size: 8px; }
  .th-stage { top: 46%; }
  .th-icon { width: 44px; height: 52px; }
  .th-file { left: -28px; top: -40px; width: 56px; }
  .th-badge { left: 16px; top: 37px; padding: 1px 5px; font-size: 7px; }
  .th-filemeta b { font-size: 8px; }
  .th-filemeta small { display: none; }
  .th-comp { padding: 3px 5px; }
  .th-comp:nth-child(1) { --sx: -128px; --sy: -76px; }
  .th-comp:nth-child(2) { --sx: 16px; --sy: -76px; }
  .th-comp:nth-child(3) { --sx: -128px; --sy: -8px; }
  .th-comp:nth-child(4) { --sx: 16px; --sy: -8px; }
  .th-comp:nth-child(5) { --sx: -56px; --sy: -110px; }
  .th-comp:nth-child(6) { --sx: -112px; --sy: 52px; }
  .th-comp:nth-child(7) { --sx: 2px; --sy: 52px; }
  .tc-hex, .tc-code { display: none !important; }
  .tc-label { font-size: 8px; }
  .th-canvas[data-phase="p3"] .th-comp.threat,
  .th-canvas[data-phase="p4"] .th-comp.threat,
  .th-canvas[data-phase="p5"] .th-comp.threat,
  .th-canvas[data-phase="static"] .th-comp.threat { transform: translate(150px, 90px) scale(.4); }
  @keyframes thExit { from { transform: none; opacity: 1; } to { transform: translateX(260px); opacity: 0; } }
  .th-seal-svg { width: 96px; height: 96px; }
  .th-seal { width: 96px; height: 96px; top: -22px; }
  .th-checklist { top: 52px; }
  .th-check { font-size: 8px; }
  .quarantine-slot { right: 10px; bottom: 58px; max-width: 46%; padding: 5px 9px; }
  .quarantine-slot b { font-size: 8px; }
  .stack-telemetry { left: 12px; bottom: 8px; gap: 2px; font-size: 8px; }
  .system-status { gap: 10px; padding: 0 10px; }
  .system-status span { font-size: 7px; }
  .section-intro h2, .platform-copy h2, .scenario-head h2, .demo-heading h2, .contact-copy h2 { font-size: 34px; }
  .platform-copy h2 { font-size: clamp(24px, 7.2vw, 28px); }
  .technology, .platform, .scenarios, .demo { padding: 85px 0; }
  .section-intro { gap: 15px; }
  .process-experience { margin-top: 50px; min-width: 0; overflow: hidden; }
  .process-rail {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    width: 100%;
    max-width: 100%;
    min-width: 0;
    overflow: hidden;
    overscroll-behavior-inline: contain;
  }
  .process-tab {
    min-width: 0;
    height: 78px;
    grid-template-columns: 1fr;
    grid-template-rows: auto auto;
    gap: 4px;
    padding: 10px 5px;
    text-align: center;
  }
  .process-tab b { grid-row: auto; font-size: 8px; }
  .process-tab span { font-size: 10px; white-space: nowrap; }
  .process-tab small { display: none; }
  .process-visual { min-height: 640px; }
  .structure-tree { left: 5%; top: 75px; width: 62%; }
  .tree-root, .tree-branch { min-height: 40px; }
  .tree-root small { display: none; }
  .rebuild-lines { display: none; }
  .policy-gate { left: auto; right: 5%; top: 38%; transform: none; width: 72px; }
  .rebuild-target { right: 4%; top: 56%; width: 130px; }
  /* 说明文字移动端隐藏（信息已在 stage-caption），防止溢出压 caption */
  .rebuild-target strong, .rebuild-target small { display: none; }
  .target-doc { width: 85px; height: 108px; padding: 29px 16px; margin-bottom: 8px; }
  /* P4/P5 树与 policy-gate 直接隐藏，避免极暗占位与验证门/处置 chips 叠字 */
  .process-visual[data-active-stage="4"] .structure-tree,
  .process-visual[data-active-stage="5"] .structure-tree,
  .process-visual[data-active-stage="4"] .policy-gate,
  .process-visual[data-active-stage="5"] .policy-gate { display: none; }
  .identify-panel { left: 50%; top: 44%; width: min(300px, 86%); }
  .id-bytes span { font-size: 14px; padding: 6px 8px; }
  .id-line { padding: 4px 6px; font-size: 7px; }
  /* 隔离小槽移动端隐藏（信息已在 caption points），避免与 gate/target 挤叠 */
  .gate-quarantine { display: none; }
  /* P3 脱落距离随小屏收窄 */
  .process-visual[data-active-stage="3"] .tree-branch.risk.branch-3 { transform: translate(80px, 40px) scale(.45); }
  .process-visual[data-active-stage="3"] .tree-branch.risk.branch-4 { transform: translate(80px, 6px) scale(.45); }
  /* P4 验证场景改竖排居中（P4 树已隐藏，无遮挡）；整体上移+压缩，避开 caption */
  .verify-scene { flex-direction: column; gap: 12px; width: 90%; top: 39%; }
  .vs-doc-body { width: 84px; height: 104px; padding: 28px 16px 10px; }
  .vs-doc-body span { margin-bottom: 10px; font-size: 8px; }
  .vs-doc-body i { margin: 6px 0; }
  .vs-list { width: 100%; gap: 4px; }
  .vs-step { padding: 4px 8px; font-size: 8px; }
  .vs-step small { font-size: 7px; }
  /* P5 路由场景：连线与光点隐藏，起点 + 2×2 处置 chips 横排；上移避开 caption */
  .policy-routes { left: 5%; right: 5%; top: auto; bottom: 215px; height: auto; gap: 14px; }
  .pr-source { width: 84px; }
  .pr-source b { display: none; }
  .pr-lines { display: none; }
  .disposition-states { flex: 1; width: auto; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }
  .stage-points { gap: 4px 12px; min-height: 0; }
  .sp-item { font-size: 8px; }
  .disposition-states span { font-size: 8px; padding: 4px 7px; }
  .stage-caption { grid-template-columns: 48px 1fr; bottom: 25px; }
  .stage-caption > b { font-size: 21px; }
  .platform-inner { gap: 45px; }
  .product-surface { margin: 0 -8px; }
  .surface-zoom-hint { opacity: 1; transform: none; }
  .surface-footer { height: auto; min-height: 43px; gap: 12px; flex-wrap: wrap; padding-block: 9px; }
  .screen-dialog { width: 100vw; }
  .screen-dialog-bar { height: auto; min-height: 48px; gap: 12px; }
  .scenario-map { grid-template-columns: 1fr; }
  .scenario-tabs {
    min-height: 245px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
  .scenario-tab { border-right: 1px solid var(--line); padding: 10px 8px; }
  .scenario-tab span { white-space: normal; }
  .topology { min-height: 610px; }
  .topology-heading { left: 12px; top: 12px; }
  .topology-heading strong { max-width: 290px; }
  .topology-deployment { top: 68px; width: calc(100% - 24px); }
  .topology-source, .topology-target, .topology-core { top: 40%; }
  .topology-source, .topology-target {
    width: 102px;
    min-height: 126px;
    padding: 12px 8px;
  }
  .topology-source { left: 1%; }
  .topology-target { right: 1%; }
  .topology-source > svg { width: 30px; height: 30px; margin-bottom: 6px; }
  .topology-source strong, .topology-target strong { margin-top: 7px; font-size: 10px; }
  .topology-source small, .topology-target small { margin-top: 5px; font-size: 7px; line-height: 1.45; }
  .topology-core { width: 92px; height: 92px; border-radius: 14px; }
  .topology-core::before { inset: -15px; }
  .topology-core::after { inset: -29px; }
  .topology-core svg { width: 30px; }
  .topology-core strong { margin-top: 5px; font-size: 11px; }
  .topology-core small { margin-top: 4px; font-size: 7px; }
  .topology-core-steps { top: calc(100% + 16px); width: 150px; line-height: 1.5; }
  .topology-zone-label { top: 25%; width: 102px; line-height: 1.45; }
  .topology-zone-source { left: 1%; }
  .topology-zone-target { right: 1%; }
  .topology-link {
    top: 40%;
    display: block;
    width: 31%;
    height: auto;
    background: none;
  }
  .topology-link.is-safe { background: none; }
  .topology-link i { display: none; }
  .topology-link b {
    position: static;
    display: block;
    width: auto;
    padding-top: 14px;
    transform: none;
    border-top: 1px solid rgba(37, 216, 255, .25);
    font-size: 7px;
  }
  .topology-link b::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 0;
    width: 5px;
    height: 5px;
    transform: translate(-50%, -50%) rotate(45deg);
    border-right: 1px solid currentColor;
    border-bottom: 1px solid currentColor;
  }
  .link-in { left: 2%; right: auto; }
  .link-out { left: auto; right: 2%; }
  .topology-access { top: 61%; width: calc(100% - 30px); }
  .topology-audit { bottom: 20px; }
  .topology-audit::before { height: 34px; }
  .topology[data-scenario="cross"] .topology-cross-boundary { top: 3%; bottom: 29%; }
  .topology[data-scenario="cross"] .topology-cross-label { top: 2%; }
  .scenario-stage { inset: 132px 10px 126px; min-height: 0; }
  .scene-fdr { min-width: 80px; min-height: 108px; padding: 10px 6px; border-radius: 12px; }
  .scene-fdr::before { inset: -4px; border-radius: 15px; }
  .scene-fdr > span { font-size: 6px; }
  .scene-fdr > strong { margin-top: 6px; font-size: 8px; }
  .scene-fdr > small { margin-top: 5px; font-size: 6px; line-height: 1.35; }
  .scene-fdr > i { margin-top: 8px; font-size: 5px; white-space: normal; }
  .scene-file { width: 38px; height: 48px; }
  .scene-file i, .scene-file b { font-size: 5px; }
  .scene-route { min-width: 18px; }
  .scene-route > span { width: 64px; font-size: 5px; }
  .scene-stop { bottom: -10px; max-width: 92%; justify-content: center; font-size: 6px; text-align: center; white-space: normal; }
  .topology-access { left: 50%; top: auto; bottom: 65px; width: calc(100% - 30px); transform: translateX(-50%); }
  .topology-audit { left: 50%; right: auto; bottom: 8px; width: calc(100% - 30px); padding: 8px 12px; transform: translateX(-50%); }
  .topology-audit::before { display: none; }
  .topology-audit > span { display: none; }
  .topology-audit small { margin-top: 4px; font-size: 6px; line-height: 1.35; }

  .topology[data-scenario="upload"] .scenario-stage { grid-template-columns: 78px 23px 82px 23px 76px; gap: 5px; }
  .upload-browser { min-height: 136px; }
  .browser-bar { height: 23px; padding: 0 6px; }
  .browser-bar > span { overflow: hidden; margin-left: 2px; font-size: 5px; text-overflow: ellipsis; white-space: nowrap; }
  .browser-upload { display: flex; flex-direction: column; gap: 5px; padding: 9px 5px; text-align: center; }
  .browser-upload .scene-file { order: 2; }
  .browser-upload > b { order: 3; font-size: 6px; }
  .browser-upload > i { order: 4; width: 90%; }
  .upload-result { min-height: 126px; padding: 8px 4px; }
  .upload-result > strong { font-size: 6px; line-height: 1.35; }

  .topology[data-scenario="mail"] .scenario-stage { grid-template-columns: 47px 17px 56px 49px 68px 17px 47px; gap: 3px; }
  .mail-sender, .mail-inbox { min-height: 98px; padding: 8px 3px; }
  .mail-envelope { width: 26px; height: 20px; margin: 6px 0; }
  .mail-server { min-height: 125px; padding: 7px 3px; }
  .server-rack { width: 35px; height: 49px; margin: 7px 0; }
  .mail-server strong { font-size: 5px; }
  .mail-loop { gap: 30px; height: 112px; }
  .mail-loop > div { padding: 3px 1px; font-size: 5px; }
  .topology[data-scenario="mail"] .scene-route > span,
  .topology[data-scenario="media"] .scene-route > span {
    top: 8px;
    bottom: auto;
    width: 42px;
    font-size: 4.5px;
    line-height: 1.35;
  }
  .topology[data-scenario="mail"] .scenario-stage > .scene-route:nth-child(2) > span {
    left: 70%;
    top: 15px;
    width: 32px;
  }
  .topology[data-scenario="mail"] .mail-loop > div {
    overflow: visible;
    margin-left: -2px;
    margin-right: -2px;
    font-size: 4.5px;
  }
  .topology[data-scenario="mail"] .scene-route.is-safe > span {
    left: 90%;
    top: 18px;
    width: 32px;
  }

  .topology[data-scenario="cross"] .scenario-stage { inset: 132px 5px 126px; }
  .cross-zone { width: 42%; padding: 12px 8px; }
  .cross-target { padding-left: 18%; }
  .cross-target > strong { left: 18%; right: 4px; bottom: 20px; font-size: 6px; }
  .cross-boundary { left: 55%; }
  .topology[data-scenario="cross"] .scene-fdr { left: 38%; width: 82px; transform: translate(-42%, -50%); }
  .cross-transfer { left: 57%; right: 8%; }
  .cross-transfer > span { width: 90px; font-size: 5px; }
  .cross-transfer .scene-file { transform: scale(.56); }

  .topology[data-scenario="storage"] .scenario-stage { grid-template-columns: 132px 58px 82px; gap: 12px; }
  .storage-server { grid-template-columns: 42px 1fr; min-height: 145px; padding: 9px 7px; gap: 5px; }
  .storage-stack { width: 38px; height: 68px; }
  .storage-server > div { padding: 4px; }
  .storage-server b, .storage-server em { font-size: 5px; }
  .storage-routes { gap: 38px; }
  .storage-state { left: 3px; bottom: 0; font-size: 5px; }

  .topology[data-scenario="api"] .scenario-stage { grid-template-columns: 218px 100px; gap: 14px; }
  .business-loop { min-height: 174px; padding: 10px 8px 24px; }
  .business-loop-title { padding-bottom: 8px; }.business-loop-title span { font-size: 7px; }.business-loop-title small { font-size: 5px; }
  .business-cycle { grid-template-columns: 1fr 8px 1fr 8px 1fr 8px 1fr; gap: 2px; margin-top: 15px; }
  .business-node { min-height: 82px; padding: 5px 2px; }
  .business-node span { font-size: 6px; }.business-node small { font-size: 4.5px; line-height: 1.35; }.business-arrow { font-size: 7px; }
  .business-loopback { left: 8%; right: 8%; font-size: 4.5px; }
  .business-fdr-bridge { gap: 5px; }
  .business-fdr-bridge .scene-fdr { width: 88px; min-height: 112px; }
  .business-submit, .business-callback { gap: 3px; font-size: 4.5px; line-height: 1.35; }
  .business-fdr-bridge::before { left: -14px; width: 14px; }

  .topology[data-scenario="endpoint"] .scenario-stage { grid-template-columns: 170px 48px 92px; gap: 10px; }
  .endpoint-host { min-height: 190px; padding: 8px; }
  .endpoint-title { grid-template-columns: 23px 1fr 48px; padding-bottom: 9px; }
  .endpoint-title > i { width: 17px; height: 13px; }.endpoint-title span { font-size: 7px; }.endpoint-title small { font-size: 5px; }
  .endpoint-title em { position: static; grid-column: 3; grid-row: 1 / 3; align-self: center; padding: 3px; font-size: 4px; text-align: center; }
  .endpoint-folder { width: 56%; min-height: 118px; margin-top: 9px; padding: 9px 6px; }
  .folder-icon { width: 25px; height: 17px; margin-bottom: 7px; }
  .folder-event { left: 6px; right: 6px; bottom: 7px; gap: 2px 4px; }
  .folder-event span { font-size: 4px; }.folder-event b { font-size: 4.5px; }
  .endpoint-agent { right: 7px; bottom: 8px; width: 40%; min-height: 118px; padding: 8px 6px; }
  .endpoint-agent span { font-size: 5px; }.endpoint-agent b { margin-top: 6px; font-size: 6px; }.endpoint-agent small { font-size: 4.5px; line-height: 1.35; }
  .endpoint-routes { gap: 38px; }
  .endpoint-return { left: 15%; bottom: -2px; }

  .topology[data-scenario="media"] .scenario-stage { grid-template-columns: 42px 18px 55px 18px 70px 18px 72px; gap: 4px; }
  .usb-device > i { width: 30px; height: 62px; }
  .usb-device > i::before { left: 8px; width: 13px; }
  .media-station { min-height: 110px; padding: 7px 3px; }
  .media-station span, .media-station small { font-size: 5px; }
  .media-station > i { width: 37px; height: 29px; }
  .media-zone { min-height: 120px; padding: 7px 3px; }
  .media-zone > strong { font-size: 6px; }
  .scenario-detail { grid-column: auto; padding: 28px 16px; }
  .scenario-detail dl { grid-template-columns: 1fr; gap: 0; }
  .scenario-outcomes { grid-template-columns: 1fr; }
  .demo-heading { gap: 15px; }
  .video-stage { margin-top: 45px; min-height: 0; }
  .video-frame { min-height: 310px; aspect-ratio: auto; }
  .video-placeholder > p { font-size: 10px; }
  .video-radar { width: 90px; height: 90px; }
  .video-chapters { display: block; }
  .chapter { min-height: 73px; }
  .contact { gap: 45px; }
  .site-footer { min-height: 130px; grid-template-columns: 1fr; }
  .site-footer > a { justify-self: start; }
  .poc-main { padding: calc(var(--header-height) + 46px) 0 90px; }
  .poc-form { padding: 28px 20px; }
  .form-grid { grid-template-columns: 1fr; }
  .scenario-options { grid-template-columns: 1fr; }
}

/* ---------- 减少动画（方案 §7.2/§8.3）：关闭后信息仍完整可读 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  /* 与 html.js .reveal 同优先级且位置靠后，确保 reduced-motion 下直接可见 */
  html.js .reveal { opacity: 1; transform: none; }
  /* 首屏净化剧场：静态终态（JS 置 data-phase="static"），信息完整可读 */
  .th-scan, .th-rings, .th-lane { display: none; }
  /* OBJECT WORKSPACE：rm 下 JS 固定 data-active-stage="3"（P3 净化重构静态帧），
     普适显隐矩阵生效，不再全层堆叠；transition/animation 由上方普适 .001ms 规则禁用 */
}

/* ============================================================
   二级页（technology / deployment / scenarios）
   沿用同一设计系统：色板语义固定，直角细边界，信息节奏与首页不同。
   ============================================================ */

.subpage-main { padding: calc(var(--header-height) + 46px) 0 110px; }

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 46px;
  color: #728796;
  font: 10px var(--font-ui);
}
.breadcrumb a { color: #8fa4b4; transition: color var(--transition-fast); }
.breadcrumb a:hover { color: var(--cyan); }

/* 页头 */
.page-hero { max-width: 860px; margin-bottom: 90px; }
.page-hero .section-index { margin-bottom: 24px; }
.page-hero h1 {
  margin: 0;
  font-size: clamp(38px, 3.8vw, 58px);
  line-height: 1.16;
  font-weight: 640;
}
.page-hero h1 span { color: var(--cyan); }
.page-hero > p { margin: 26px 0 0; color: #8fa4b4; font-size: 15px; line-height: 1.95; }

/* 小节结构 */
.sub-section { margin-top: 96px; }
.sub-section-head { max-width: 780px; }
.sub-section-head .section-index { margin-bottom: 20px; }
.sub-section-head h2, .evidence-strip h2 {
  margin: 0;
  font-size: clamp(28px, 2.6vw, 40px);
  line-height: 1.22;
  font-weight: 630;
}
.sub-section-head h2 span, .evidence-strip h2 span { color: var(--cyan); }
.sub-section-head p { margin: 18px 0 0; color: #849aaa; font-size: 14px; line-height: 1.9; }

/* CDR 知识页：用静态语义内容承接行业术语与场景检索。 */
.topic-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin-top: 42px;
  background: var(--line);
  border: 1px solid var(--line);
}
.topic-grid section { padding: 28px; background: var(--bg); }
.topic-grid b { color: var(--cyan); font-size: 15px; }
.topic-grid p { margin: 12px 0 0; color: #849aaa; font-size: 13px; line-height: 1.85; }
.term-compare { margin-top: 42px; border-top: 1px solid var(--line); }
.term-compare > div {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 30px;
  padding: 24px 0;
  border-bottom: 1px solid var(--line);
}
.term-compare strong { color: #6f8a9d; font: 10px var(--font-ui); letter-spacing: .08em; }
.term-compare span { color: #c2d0d9; font-size: 14px; line-height: 1.7; }
.keyword-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 42px;
  background: var(--line);
  border: 1px solid var(--line);
}
.keyword-links a {
  display: flex;
  min-height: 76px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px;
  background: var(--bg);
  color: #a9bdca;
  font-size: 13px;
  transition: color var(--transition-fast), background var(--transition-fast);
}
.keyword-links a:hover { color: var(--cyan); background: rgba(37, 216, 255, .05); }
.keyword-links a span { color: var(--cyan); }

/* 首页「深入了解」链接 */
.intro-more { display: block; margin-top: 16px; }
.intro-more a { color: var(--cyan); font-size: 13px; }
.intro-more a:hover { text-decoration: underline; }

/* ---------- 技术页：技术路径 ---------- */
.tech-paths { margin-top: 54px; border-top: 1px solid var(--line); }
.tech-path {
  display: grid;
  grid-template-columns: 250px 1fr 340px;
  gap: 34px;
  padding: 30px 0 30px 20px;
  border-bottom: 1px solid var(--line);
  border-left: 2px solid transparent;
}
.tech-path.chosen {
  border-left-color: var(--cyan);
  background: linear-gradient(90deg, rgba(37, 216, 255, .05), transparent 60%);
}
.tech-path header b { display: block; margin-bottom: 10px; color: #69889e; font: 9px var(--font-ui); }
.tech-path.chosen header b { color: var(--cyan); }
.tech-path header h3 { margin: 0; font-size: 17px; font-weight: 620; }
.tech-path > p { margin: 0; color: #8fa4b4; font-size: 13px; line-height: 1.8; }
.tech-path dl { margin: 0; display: grid; gap: 12px; }
.tech-path dl > div { display: grid; grid-template-columns: 44px 1fr; gap: 10px; }
.tech-path dt { color: #6d8898; font: 9px/1.7 var(--font-ui); }
.tech-path dd { margin: 0; color: #b3c4cf; font-size: 11px; line-height: 1.7; }

/* ---------- 技术页：P1-P5 阶段详解 ---------- */
.tech-stages { margin-top: 40px; }
.tech-stage {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding: 74px 0;
  border-top: 1px solid var(--line);
}
.tech-stage.flip .tech-stage-text { order: 2; }
.stage-badge { display: flex; align-items: baseline; gap: 14px; margin-bottom: 20px; }
.stage-badge b { color: var(--cyan); font: 26px var(--font-ui); }
.stage-badge span { color: #8fa4b4; font-size: 15px; }
.tech-stage-text h3 { margin: 0; font-size: 23px; font-weight: 620; }
.tech-stage-text > p { margin: 18px 0 0; color: #849aaa; font-size: 13px; line-height: 1.9; }
.stage-points { margin: 24px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.stage-points li {
  position: relative;
  padding: 12px 0 12px 22px;
  border-bottom: 1px solid var(--line);
  color: #a9bcc9;
  font-size: 12px;
  line-height: 1.6;
}
.stage-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 19px;
  width: 10px;
  height: 1px;
  background: var(--cyan);
}

/* 阶段图解容器 */
.tech-stage-figure {
  position: relative;
  min-height: 330px;
  padding: 28px;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 50% 40%, rgba(26, 142, 192, .08), transparent 60%),
    var(--bg-soft);
  display: flex;
  align-items: center;
}
.diag { width: 100%; font-family: var(--font-ui); }

/* P1 交叉判定 */
.diag-file {
  padding: 14px 16px;
  border: 1px solid rgba(77, 161, 230, .48);
  background: rgba(7, 31, 52, .88);
}
.diag-file span { color: #78b9ee; font-size: 9px; letter-spacing: .12em; }
.diag-file strong { display: block; margin-top: 7px; font-size: 12px; }
.diag-file small { display: block; margin-top: 6px; color: #728796; font-size: 8px; }
.diag-signals { margin: 18px 0; }
.diag-signals > div {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line);
  color: #9fc6dd;
  font-size: 9px;
}
.diag-signals i { width: 5px; height: 5px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 7px var(--cyan); }
.diag-signals em { margin-left: auto; color: #728796; font-size: 8px; font-style: normal; }
.diag-verdict {
  padding: 10px 14px;
  border: 1px solid rgba(114, 255, 208, .4);
  color: var(--green);
  font-size: 9px;
  text-align: center;
}

/* P2 对象树 */
.diag-tree-root {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 11px 13px;
  border: 1px solid rgba(47, 155, 212, .42);
  background: rgba(7, 24, 37, .84);
  font-size: 10px;
}
.diag-tree-root i { width: 11px; height: 14px; border: 1px solid var(--cyan); }
.diag-tree-root small { margin-left: auto; color: #55768a; font-size: 7px; }
.diag-tree ul { margin: 0 0 0 20px; padding: 0 0 0 14px; list-style: none; border-left: 1px solid var(--line); }
.diag-tree li {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  font-size: 8px;
  color: #9db1bf;
}
.diag-tree li.safe b { margin-left: auto; color: #68dfff; font-size: 7px; }
.diag-tree li.risk { border-color: rgba(255, 141, 113, .34); background: rgba(63, 24, 25, .48); color: #d99c8d; }
.diag-tree li.risk b { margin-left: auto; color: var(--risk); font-size: 7px; }
.diag-note { margin-top: 16px; color: #728796; font-size: 7px; text-align: center; }

/* P3 重构流 */
.diag-rebuild { display: grid; grid-template-columns: 1fr 1.1fr 1fr; gap: 16px; align-items: center; }
.diag-doc { padding: 16px 14px; text-align: center; }
.diag-doc span { font-size: 8px; letter-spacing: .14em; }
.diag-doc strong { display: block; margin-top: 8px; font-size: 10px; }
.diag-doc small { display: block; margin-top: 8px; color: #728796; font-size: 7px; line-height: 1.5; }
.diag-doc.original { border: 1px solid rgba(77, 161, 230, .48); background: rgba(7, 31, 52, .88); }
.diag-doc.original span { color: #78b9ee; }
.diag-doc.rebuilt { border: 1px solid rgba(114, 255, 208, .5); background: rgba(10, 47, 50, .7); }
.diag-doc.rebuilt span { color: var(--green); }
.diag-lanes { display: grid; gap: 12px; }
.diag-lanes .lane {
  padding: 11px 12px;
  border-top: 1px dashed;
  font-size: 7px;
}
.diag-lanes .lane b { display: block; letter-spacing: .12em; }
.diag-lanes .lane span { display: block; margin-top: 6px; color: #718a9c; }
.diag-lanes .migrate { border-color: rgba(114, 255, 208, .5); color: var(--green); }
.diag-lanes .drop { border-color: rgba(255, 141, 113, .5); color: var(--risk); }

/* P4 验证门 */
.diag-gates .gate {
  display: grid;
  grid-template-columns: 40px 1fr 16px;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}
.diag-gates .gate:first-child { padding-top: 0; }
.diag-gates .gate:last-child { border-bottom: 0; padding-bottom: 0; }
.diag-gates .gate b { color: var(--green); font-size: 10px; }
.diag-gates .gate strong { display: block; font-size: 9px; font-weight: 400; }
.diag-gates .gate small { display: block; margin-top: 4px; color: #728796; font-size: 7px; line-height: 1.5; }
.diag-gates .gate i { width: 6px; height: 6px; border-radius: 50%; background: var(--green); box-shadow: 0 0 8px var(--green); }

/* P5 处置分流 */
.diag-dispose .diag-outcomes { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.diag-outcomes span {
  padding: 7px 10px;
  border: 1px solid var(--line);
  font-size: 7px;
  color: #9db1bf;
}
.diag-outcomes .disp-deliver { border-color: rgba(114, 255, 208, .5); color: var(--green); }
.diag-outcomes .disp-block { border-color: rgba(255, 141, 113, .5); color: var(--risk); }
.diag-outcomes .disp-quarantine { border-color: rgba(255, 141, 113, .34); color: #d99c8d; }
.diag-outcomes .disp-review { border-color: rgba(98, 211, 255, .42); color: #8fd7f5; }

/* ---------- 技术页：审计链 ---------- */
.evidence-strip {
  padding: 48px 52px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  background: var(--bg-soft);
}
.evidence-strip p { max-width: 900px; margin: 18px 0 0; color: #849aaa; font-size: 14px; line-height: 1.9; }

/* ---------- 技术页：自研模块 ---------- */
.engine-grid {
  margin-top: 50px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
}
.engine-item { padding: 24px 22px 24px 0; border-bottom: 1px solid var(--line); }
.engine-item b { display: block; color: #6e8899; font: 9px var(--font-ui); }
.engine-item strong { display: block; margin-top: 12px; font-size: 14px; }
.engine-item span { display: block; margin-top: 8px; color: #6e8798; font-size: 10px; line-height: 1.6; }

/* ---------- 部署页：产品形态 ---------- */
.deploy-forms { margin-top: 50px; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; border-top: 1px solid var(--line); }
.deploy-form { display: grid; grid-template-columns: 48px 1fr; gap: 16px; padding-top: 34px; }
.deploy-form > b { color: var(--cyan); font: 12px var(--font-ui); }
.deploy-form h3 { margin: 0; font-size: 21px; }
.deploy-form span { display: block; margin-top: 8px; color: #69889e; font: 9px var(--font-ui); letter-spacing: .12em; }
.deploy-form p { margin: 16px 0 0; color: #849aaa; font-size: 13px; line-height: 1.9; }

/* ---------- 部署页：拓扑 SVG ---------- */
.deploy-diagram {
  margin-top: 50px;
  padding: 30px;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  overflow-x: auto;
}
.deploy-diagram svg { display: block; width: 100%; min-width: 760px; height: auto; }
.deploy-diagram text { fill: var(--text); font-family: var(--font-main); font-size: 13px; }
.deploy-diagram .zone-box { fill: rgba(6, 22, 34, .55); stroke: var(--line); }
.deploy-diagram .zone-core { fill: rgba(10, 42, 56, .5); stroke: rgba(37, 216, 255, .34); }
.deploy-diagram .zone-label { fill: #6c8495; font-family: var(--font-ui); font-size: 9px; }
.deploy-diagram .node-entry rect { fill: rgba(7, 31, 52, .88); stroke: rgba(77, 161, 230, .4); }
.deploy-diagram .node-entry text { font-size: 11px; }
.deploy-diagram .node-core rect:first-child { fill: rgba(9, 49, 68, .8); stroke: var(--cyan); }
.deploy-diagram .core-name { fill: var(--cyan); font-family: var(--font-ui); font-size: 17px; letter-spacing: .1em; }
.deploy-diagram .core-sub { fill: #8fa4b4; font-size: 10px; }
.deploy-diagram .core-stages rect { fill: rgba(3, 15, 23, .8); stroke: rgba(37, 216, 255, .5); }
.deploy-diagram .core-stages text { fill: var(--cyan); font-family: var(--font-ui); font-size: 10px; }
.deploy-diagram .core-note { fill: #6e8798; font-size: 9px; }
.deploy-diagram .core-reject { fill: var(--risk); font-size: 9px; }
.deploy-diagram .node-target rect { fill: rgba(10, 47, 50, .7); stroke: rgba(114, 255, 208, .4); }
.deploy-diagram .node-target text { font-size: 11px; }
.deploy-diagram .flow-untrusted path { fill: none; stroke: url(#deploy-flow); stroke-width: 1.2; stroke-dasharray: 6 6; animation: dash 2.2s linear infinite; }
.deploy-diagram .flow-trusted path { fill: none; stroke: rgba(114, 255, 208, .75); stroke-width: 1.2; stroke-dasharray: 6 6; animation: dash 2.2s linear infinite; }
.deploy-diagram .flow-label { fill: #728796; font-family: var(--font-ui); font-size: 8px; }
.deploy-diagram .flow-audit path { fill: none; stroke: rgba(37, 216, 255, .35); stroke-dasharray: 4 5; }
.deploy-diagram .zone-audit { fill: rgba(6, 22, 34, .8); stroke: var(--line); }
.deploy-diagram .audit-label { fill: #8fa4b4; font-family: var(--font-ui); font-size: 9px; }

/* ---------- 部署页：网络边界 / 接入方式 / 运行 ---------- */
.deploy-boundaries { margin: 50px 0 0; border-top: 1px solid var(--line); }
.deploy-boundaries > div {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 30px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}
.deploy-boundaries dt { color: var(--cyan); font-size: 13px; font-weight: 600; }
.deploy-boundaries dd { margin: 0; color: #8fa4b4; font-size: 12px; line-height: 1.8; }
.deploy-integrations {
  margin-top: 50px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}
.deploy-integration { padding: 24px 26px 24px 0; border-bottom: 1px solid var(--line); }
.deploy-integration b { display: block; color: #6e8899; font: 9px var(--font-ui); }
.deploy-integration strong { display: block; margin-top: 12px; font-size: 14px; }
.deploy-integration span { display: block; margin-top: 8px; color: #6e8798; font-size: 10px; line-height: 1.7; }
.deploy-operations { margin: 44px 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line); }
.deploy-operations li {
  position: relative;
  padding: 16px 0 16px 24px;
  border-bottom: 1px solid var(--line);
  color: #a9bcc9;
  font-size: 13px;
  line-height: 1.7;
}
.deploy-operations li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24px;
  width: 10px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 场景页：锚点导航 ---------- */
.scenario-anchor-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}
.scenario-anchor-nav a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  background: rgba(3, 10, 17, .5);
  font-size: 12px;
  color: #9db1bf;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}
.scenario-anchor-nav a:hover { border-color: var(--line-strong); color: var(--text); }
.scenario-anchor-nav b { color: #6e8899; font: 9px var(--font-ui); }

/* ---------- 场景页：场景小节 ---------- */
.scenario-section { padding: 76px 0 66px; }
.scenario-section-head { display: flex; align-items: baseline; gap: 22px; }
.scenario-section-head > b { color: #5c8297; font: 10px var(--font-ui); letter-spacing: .14em; white-space: nowrap; }
.scenario-section-head h2 { margin: 0; font-size: clamp(24px, 2.2vw, 32px); font-weight: 630; }
.scenario-section-body { margin-top: 34px; display: grid; grid-template-columns: 1.1fr .9fr; gap: 60px; align-items: start; }
.scenario-detail-text { margin: 0; color: #849aaa; font-size: 14px; line-height: 1.95; }
.scenario-facts { grid-column: 1 / -1; margin: 10px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 34px; border-top: 1px solid var(--line); }
.scenario-facts > div { padding: 15px 0; border-bottom: 1px solid var(--line); }
.scenario-facts dt { margin-bottom: 7px; color: #6d8898; font: 10px var(--font-ui); }
.scenario-facts dd { margin: 0; color: #b3c4cf; font-size: 11px; line-height: 1.6; }
.scenario-divider { margin: 0; border: 0; border-top: 1px solid var(--line); }

/* 小型拓扑条（复用首页拓扑视觉语言） */
.mini-topology {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  padding: 22px;
  border: 1px solid var(--line);
  background: radial-gradient(circle at 50% 45%, rgba(24, 137, 188, .1), transparent 65%), var(--bg-soft);
}
.mini-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  min-width: 118px;
  min-height: 76px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  background: rgba(6, 22, 34, .78);
}
.mini-node span { color: #5c8095; font: 7px var(--font-ui); letter-spacing: .14em; }
.mini-node strong { margin-top: 8px; font-size: 11px; }
.mini-node small { margin-top: 6px; color: #617d8e; font-size: 7px; }
.mini-target { border-color: rgba(114, 255, 208, .3); }
.mini-target span { color: var(--green); }
.mini-core { border-color: rgba(37, 216, 255, .4); background: rgba(10, 42, 56, .6); }
.mini-core strong { color: var(--cyan); font: 11px var(--font-ui); letter-spacing: .08em; }
.mini-link { position: relative; flex: 1; min-width: 30px; height: 1px; background: linear-gradient(90deg, transparent, var(--cyan), transparent); }
.mini-link.trusted { background: linear-gradient(90deg, transparent, var(--green), transparent); }
.mini-link i {
  position: absolute;
  top: -2px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  animation: topologyPacket 2.4s linear infinite;
}
.mini-link.trusted i { background: var(--green); box-shadow: 0 0 8px var(--green); }
.mini-link i:nth-child(2) { animation-delay: -1.2s; }
.mini-audit {
  width: 100%;
  margin-top: 6px;
  padding-top: 12px;
  border-top: 1px dashed rgba(37, 216, 255, .2);
  color: #6e8798;
  font: 8px var(--font-ui);
  text-align: center;
}

/* ---------- 二级页底部行动区 ---------- */
.sub-cta {
  margin-top: 100px;
  padding-top: 44px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.sub-cta-links { display: flex; gap: 34px; }
.sub-cta-links a { color: #9db1bf; font-size: 14px; transition: color var(--transition-fast); }
.sub-cta-links a:hover { color: var(--cyan); }
.sub-cta-links a span { color: var(--cyan); }

/* ---------- 二级页响应式 ---------- */
@media (max-width: 980px) {
  .subpage-main { padding: calc(var(--header-height) + 34px) 0 80px; }
  .breadcrumb { margin-bottom: 32px; }
  .page-hero { margin-bottom: 60px; }
  .sub-section { margin-top: 70px; }
  .tech-path { grid-template-columns: 1fr; gap: 16px; padding-left: 14px; }
  .tech-stage { grid-template-columns: 1fr; gap: 34px; padding: 54px 0; }
  .tech-stage.flip .tech-stage-text { order: 0; }
  .engine-grid { grid-template-columns: repeat(2, 1fr); }
  .evidence-strip { padding: 30px 24px; }
  .deploy-forms { grid-template-columns: 1fr; gap: 0; }
  .deploy-form { padding: 28px 0; border-bottom: 1px solid var(--line); }
  .deploy-form:last-child { border-bottom: 0; }
  .deploy-boundaries > div { grid-template-columns: 1fr; gap: 8px; }
  .deploy-integrations { grid-template-columns: repeat(2, 1fr); }
  .scenario-section-body { grid-template-columns: 1fr; gap: 30px; }
  .scenario-facts { grid-template-columns: repeat(2, 1fr); }
  .keyword-links { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .page-hero h1 { font-size: 33px; }
  .tech-stage-figure { min-height: 0; padding: 20px; }
  .diag-rebuild { grid-template-columns: 1fr; gap: 12px; }
  .engine-grid { grid-template-columns: 1fr; }
  .deploy-integrations { grid-template-columns: 1fr; }
  .scenario-section { padding: 54px 0 46px; }
  .scenario-section-head { flex-direction: column; gap: 8px; }
  .scenario-facts { grid-template-columns: 1fr; }
  .topic-grid, .keyword-links { grid-template-columns: 1fr; }
  .term-compare > div { grid-template-columns: 1fr; gap: 9px; }
  .mini-node { min-width: 96px; min-height: 68px; padding: 8px; }
  .sub-cta { margin-top: 70px; }
  .sub-cta-links { flex-direction: column; gap: 16px; }
  .sub-cta .button { width: 100%; }
}

/* ============================================================
   P2 二级页（resources / demo）
   ============================================================ */

/* 屏幕阅读器专用 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- 资源中心：产品资料 ---------- */
.material-list { margin-top: 50px; border-top: 1px solid var(--line); }
.material-item {
  display: grid;
  grid-template-columns: 50px 1fr auto;
  align-items: center;
  gap: 22px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
  transition: background var(--transition-fast);
}
.material-item:hover { background: linear-gradient(90deg, rgba(37, 216, 255, .05), transparent 60%); }
.material-item > b { color: #6e8899; font: 10px var(--font-ui); }
.material-item strong { display: block; font-size: 15px; }
.material-item div span { display: block; margin-top: 7px; color: #6e8798; font-size: 11px; line-height: 1.6; }
.material-item em {
  font-style: normal;
  padding: 9px 14px;
  border: 1px solid rgba(97, 205, 255, .35);
  color: var(--cyan);
  font-size: 11px;
  white-space: nowrap;
}
.material-item em i { font-style: normal; margin-left: 8px; }

/* ---------- 资源中心：典型文件清洗需求 ---------- */
.cleaning-topics {
  margin-top: 50px;
  border-top: 1px solid var(--line);
}
.cleaning-topic {
  display: grid;
  grid-template-columns: minmax(220px, .7fr) minmax(280px, 1.1fr) minmax(360px, 1.4fr);
  gap: 42px;
  align-items: start;
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
}
.cleaning-topic-head { display: flex; align-items: baseline; gap: 16px; }
.cleaning-topic-head b { color: var(--cyan); font: 10px var(--font-ui); }
.cleaning-topic h3 { margin: 0; font-size: 20px; font-weight: 620; }
.cleaning-topic > p { margin: 0; color: #8fa4b4; font-size: 13px; line-height: 1.9; }
.cleaning-topic dl { margin: 0; display: grid; gap: 12px; }
.cleaning-topic dl > div { display: grid; grid-template-columns: 70px 1fr; gap: 14px; }
.cleaning-topic dt { color: #607d90; font: 9px/1.8 var(--font-ui); }
.cleaning-topic dd { margin: 0; color: #afc0cb; font-size: 11px; line-height: 1.75; }
.content-boundary {
  margin: 18px 0 0;
  padding: 15px 18px;
  border-left: 2px solid rgba(37, 216, 255, .45);
  background: rgba(37, 216, 255, .035);
  color: #6f899a;
  font-size: 11px;
  line-height: 1.8;
}

/* ---------- 资源中心：白皮书技术路径与选型清单 ---------- */
.resource-paths {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 50px;
  border: 1px solid var(--line);
  background: var(--line);
}
.resource-paths article { min-height: 220px; padding: 28px; background: var(--bg); }
.resource-paths article.is-selected { background: linear-gradient(145deg, rgba(37, 216, 255, .1), rgba(3, 10, 17, .9) 64%); }
.resource-paths b { color: #668599; font: 9px var(--font-ui); letter-spacing: .08em; }
.resource-paths .is-selected b { color: var(--cyan); }
.resource-paths h3 { margin: 42px 0 0; font-size: 19px; }
.resource-paths p { margin: 14px 0 0; color: #8299a8; font-size: 12px; line-height: 1.85; }
.selection-checklist {
  display: grid;
  grid-template-columns: minmax(260px, .75fr) minmax(480px, 1.25fr);
  gap: 70px;
  margin-top: 58px;
  padding: 38px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.selection-intro > span { color: var(--cyan); font: 9px var(--font-ui); letter-spacing: .14em; }
.selection-intro h3 { margin: 18px 0 0; font-size: 23px; line-height: 1.45; }
.selection-intro p { margin: 16px 0 0; color: #718a9b; font-size: 12px; line-height: 1.8; }
.selection-intro a { display: inline-block; margin-top: 25px; color: var(--cyan); font-size: 12px; }
.selection-intro a:hover { text-decoration: underline; }
.selection-checklist ol {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0 28px;
  counter-reset: selection;
}
.selection-checklist li {
  position: relative;
  min-height: 62px;
  padding: 17px 0 17px 42px;
  border-bottom: 1px solid rgba(100, 156, 187, .12);
  color: #aebfca;
  font-size: 12px;
  line-height: 1.65;
  counter-increment: selection;
}
.selection-checklist li::before {
  content: counter(selection, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 18px;
  color: #52748a;
  font: 9px var(--font-ui);
}
.resource-deep-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 28px;
  border: 1px solid var(--line);
  background: var(--line);
}
.resource-deep-links a { padding: 22px; background: var(--bg); }
.resource-deep-links strong { display: block; color: #afc2ce; font-size: 13px; }
.resource-deep-links span { display: block; margin-top: 9px; color: #617d8e; font-size: 10px; line-height: 1.6; }
.resource-deep-links a:hover strong, .resource-deep-links a:hover span { color: var(--cyan); }

/* ---------- 资源中心：FAQ ---------- */
.faq-list { margin-top: 50px; border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 0;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  list-style: none;
  transition: color var(--transition-fast);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--cyan); }
.faq-item summary:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.faq-item summary i {
  flex: none;
  width: 12px;
  height: 12px;
  border-right: 1px solid var(--cyan);
  border-bottom: 1px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform var(--transition-fast);
}
.faq-item[open] summary { color: var(--cyan); }
.faq-item[open] summary i { transform: rotate(225deg); }
.faq-item p {
  max-width: 900px;
  margin: 0;
  padding: 0 0 24px;
  color: #849aaa;
  font-size: 13px;
  line-height: 1.9;
}

/* ---------- 资源中心：后续材料占位 ---------- */
.upcoming-list { margin-top: 50px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.upcoming-item {
  padding: 26px 24px;
  border: 1px dashed var(--line);
  background: rgba(3, 10, 17, .4);
}
.upcoming-item strong { display: block; font-size: 14px; color: #9db1bf; }
.upcoming-item span { display: block; margin-top: 10px; color: #728796; font: 9px var(--font-ui); }

/* ---------- 演示页：主媒体区 ---------- */
.demo-hero-section { margin-top: 0; }
.demo-video-frame {
  border: 1px solid var(--line);
  background: radial-gradient(circle at center, rgba(26, 136, 187, .12), transparent 36%), #02060a;
}
.video-caption-note {
  margin: 14px 0 0;
  color: #728796;
  font-size: 11px;
  line-height: 1.7;
}

/* 章节列表（含说明） */
.demo-chapters { margin-top: 40px; border-top: 1px solid var(--line); }
.demo-chapter {
  width: 100%;
  display: grid;
  grid-template-columns: 50px 1fr auto;
  align-items: center;
  gap: 20px;
  padding: 20px 0;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  text-align: left;
  cursor: pointer;
  transition: background var(--transition-fast);
}
.demo-chapter:hover { background: linear-gradient(90deg, rgba(37, 216, 255, .04), transparent 60%); }
.demo-chapter > b { color: #496b7e; font: 10px var(--font-ui); }
.demo-chapter strong { display: block; font-size: 14px; }
.demo-chapter div span { display: block; margin-top: 7px; color: #6e8798; font-size: 11px; line-height: 1.6; }
.demo-chapter em { font-style: normal; color: #4e7083; font: 9px var(--font-ui); }
.demo-chapter.active { background: linear-gradient(90deg, rgba(37, 216, 255, .08), transparent 60%); }
.demo-chapter.active > b, .demo-chapter.active strong, .demo-chapter.active em { color: var(--cyan); }

/* ---------- 演示页：产品截图 ---------- */
.demo-screens { margin-top: 50px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.demo-screen { margin: 0; }
.demo-screen-media {
  border: 1px solid rgba(108, 173, 214, .24);
  background: #07121d;
  overflow: hidden;
  aspect-ratio: 16 / 9;
}
.demo-screen-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top left;
  filter: saturate(.74) contrast(1.06) brightness(.82);
  transition: transform .7s;
}
.demo-screen:hover .demo-screen-media img { transform: scale(1.02); }
.demo-screen figcaption { padding: 16px 2px 0; }
.demo-screen figcaption b { display: block; color: var(--cyan); font: 9px var(--font-ui); }
.demo-screen figcaption span { display: block; margin-top: 9px; color: #849aaa; font-size: 11px; line-height: 1.7; }

/* ---------- 演示页：预约行动区 ---------- */
.sub-cta-copy strong { display: block; font-size: 18px; }
.sub-cta-copy span { display: block; margin-top: 8px; color: #718a9c; font-size: 12px; }

/* ---------- P2 页响应式 ---------- */
@media (max-width: 980px) {
  .cleaning-topic { grid-template-columns: 190px 1fr; gap: 22px 34px; }
  .cleaning-topic dl { grid-column: 2; }
  .selection-checklist { grid-template-columns: 1fr; gap: 36px; }
  .upcoming-list { grid-template-columns: 1fr; }
  .demo-screens { grid-template-columns: 1fr; }
  .material-item { grid-template-columns: 40px 1fr; }
  .material-item em { grid-column: 2; justify-self: start; margin-top: 4px; }
}

@media (max-width: 640px) {
  .cleaning-topic { grid-template-columns: 1fr; gap: 18px; padding: 28px 0; }
  .cleaning-topic dl { grid-column: auto; }
  .resource-paths, .resource-deep-links { grid-template-columns: 1fr; }
  .resource-paths article { min-height: 0; }
  .resource-paths h3 { margin-top: 24px; }
  .selection-checklist { margin-top: 42px; padding: 30px 0; }
  .selection-checklist ol { grid-template-columns: 1fr; }
  .demo-chapter { grid-template-columns: 36px 1fr auto; gap: 12px; }
  .demo-video-frame { min-height: 260px; aspect-ratio: auto; }
}

/* ---------- 可读性校正：中文信息不以微缩字号制造“科技感” ---------- */
/*
 * 仅抬升说明、流程节点和中文状态文本；纯英文序号/HUD 可继续作为微标签。
 * 这组规则置于文件末端，覆盖紧凑动画的历史字号而不改变既有结构与动效。
 */
.sanitize-head span,
.sanitize-play,
.sanitize-track button small,
.sanitize-zone-label,
.sanitize-file small,
.sanitize-source-state,
.sanitize-engine-title small,
.sanitize-facts span,
.sanitize-objects > span,
.sanitize-objects > span small,
.sanitize-rebuild span,
.sanitize-validation span,
.sanitize-copy-badge,
.sanitize-disposition span,
.sanitize-disposition b,
.sanitize-disposition em,
.sanitize-note { font-size: 10px; }
.sanitize-file b,
.sanitize-engine-title span { font-size: 10px; }
.sanitize-flow { font-size: 9px; }
.id-name small,
.id-line,
.tree-root small,
.gate-quarantine span,
.gate-quarantine b,
.vs-doc-body span,
.vs-step,
.sp-item,
.disposition-states span,
.surface-evidence span,
.scenario-purpose,
.video-internal-note,
.site-footer > p,
.chapter small { font-size: 10px; }

.tree-branch b,
.policy-gate b,
.rebuild-target small,
.vs-step small,
.disposition-states span small { font-size: 10px; }

.topology-heading span,
.topology-deployment span,
.topology-deployment strong,
.topology-source small,
.topology-target small,
.topology-core small,
.topology-core-steps,
.topology-link b,
.topology-audit > span,
.topology-audit small,
.topology-zone-label,
.topology-access span,
.topology-access strong,
.topology[data-scenario="cross"] .topology-cross-label { font-size: 10px; }
.scenario-detail > p,
.scenario-detail dd { font-size: 12px; }
.scenario-outcomes span { font-size: 9px; }
.scenario-outcomes strong { font-size: 11px; }

.scene-file i,
.scene-file b,
.scene-fdr > span,
.scene-fdr > small,
.scene-fdr > i,
.scene-route > span,
.scene-stop,
.browser-upload small,
.browser-upload > b,
.upload-result > span,
.upload-result > strong,
.mail-sender > span,
.mail-inbox > span,
.mail-server > span,
.mail-sender small,
.mail-inbox small,
.mail-server strong,
.mail-loop > div,
.cross-zone > span,
.cross-zone > small,
.cross-target > strong,
.cross-boundary > span,
.cross-transfer > span,
.storage-server > span,
.storage-server b,
.storage-server em,
.storage-state,
.business-loop-title small,
.business-node b,
.business-node span,
.business-node small,
.business-node.is-gateway::after,
.business-loopback,
.business-submit,
.business-callback,
.endpoint-title small,
.endpoint-title em,
.endpoint-folder,
.endpoint-folder > small,
.folder-event span,
.folder-event b,
.endpoint-agent span,
.endpoint-agent b,
.endpoint-agent small,
.endpoint-return,
.usb-device small,
.media-station span,
.media-station small,
.media-zone > span,
.media-zone > strong { font-size: 9px; }
.scene-fdr > strong,
.business-loop-title span,
.endpoint-title span,
.usb-device b { font-size: 11px; }

.diag-file span,
.diag-file small,
.diag-signals > div,
.diag-signals em,
.diag-verdict,
.diag-tree-root small,
.diag-tree li,
.diag-tree li.safe b,
.diag-tree li.risk b,
.diag-note,
.diag-doc span,
.diag-doc small,
.diag-lanes .lane,
.diag-gates .gate strong,
.diag-gates .gate small,
.diag-outcomes span { font-size: 10px; }
.mini-node span,
.mini-node small,
.mini-audit { font-size: 10px; }
.deploy-diagram .zone-label,
.deploy-diagram .core-sub,
.deploy-diagram .core-stages text,
.deploy-diagram .core-note,
.deploy-diagram .core-reject,
.deploy-diagram .flow-label,
.deploy-diagram .audit-label { font-size: 10px; }

@media (max-width: 640px) {
  /* 首屏流程保留紧凑关系，但核心中文均达到可读下限。 */
  .sanitize-head span,
  .sanitize-track button b,
  .sanitize-track button span,
  .sanitize-track button small,
  .sanitize-zone-label,
  .sanitize-file b,
  .sanitize-file small,
  .sanitize-source-state,
  .sanitize-engine-title span,
  .sanitize-engine-title small,
  .sanitize-facts span,
  .sanitize-objects > span,
  .sanitize-objects > span small,
  .sanitize-rebuild span,
  .sanitize-validation span,
  .sanitize-copy-badge,
  .sanitize-disposition span,
  .sanitize-disposition b,
  .sanitize-disposition em,
  .sanitize-note { font-size: 9px; }

  /* 七个场景的手机舞台原先存在 4–6px 中文，统一提升并给流程留出高度。 */
  .topology { min-height: 660px; }
  .scenario-stage { inset: 136px 5px 176px; }
  .topology-heading span,
  .topology-heading strong,
  .topology-deployment span,
  .topology-deployment strong,
  .topology-audit > span,
  .topology-audit strong,
  .topology-audit small,
  .topology-access span,
  .topology-access strong { font-size: 9px; }
  .scene-fdr > span,
  .scene-fdr > small,
  .scene-fdr > i,
  .scene-file i,
  .scene-file b,
  .scene-route > span,
  .scene-stop,
  .browser-bar > span,
  .browser-upload > b,
  .upload-result > strong,
  .mail-server strong,
  .mail-loop > div,
  .topology[data-scenario="mail"] .scene-route > span,
  .topology[data-scenario="media"] .scene-route > span,
  .topology[data-scenario="mail"] .mail-loop > div,
  .topology[data-scenario="mail"] .scene-route.is-safe > span,
  .cross-target > strong,
  .cross-transfer > span,
  .storage-server b,
  .storage-server em,
  .storage-state,
  .business-loop-title span,
  .business-loop-title small,
  .business-node span,
  .business-node small,
  .business-loopback,
  .business-submit,
  .business-callback,
  .endpoint-title span,
  .endpoint-title small,
  .endpoint-title em,
  .folder-event span,
  .folder-event b,
  .endpoint-agent span,
  .endpoint-agent b,
  .endpoint-agent small,
  .media-station span,
  .media-station small,
  .media-zone > strong { font-size: 9px; }
  .gate-quarantine > * { font-size: 9px; }
  .scene-fdr > strong { font-size: 10px; }

  .topology[data-scenario="mail"] .scenario-stage {
    grid-template-columns: 48px 19px 58px 58px 72px 19px 48px;
    gap: 2px;
  }
  .mail-loop { gap: 35px; }
  .topology[data-scenario="mail"] .scenario-stage > .scene-route:nth-child(2) > span,
  .topology[data-scenario="mail"] .scene-route.is-safe > span { width: 46px; }

  .topology[data-scenario="storage"] .scenario-stage { grid-template-columns: 130px 60px 86px; gap: 8px; }
  .storage-server > div { padding: 5px 3px; }

  .topology[data-scenario="api"] .scenario-stage { grid-template-columns: 214px 104px; gap: 10px; }
  .business-loop { min-height: 196px; padding-bottom: 30px; }
  .business-node { min-height: 92px; padding: 6px 3px; }
  .business-node small { line-height: 1.25; }
  .business-fdr-bridge .scene-fdr { min-height: 124px; }

  .topology[data-scenario="endpoint"] .scenario-stage { grid-template-columns: 168px 49px 95px; gap: 8px; }
  .endpoint-host { min-height: 210px; }
  .endpoint-folder,
  .endpoint-agent { min-height: 132px; }
  .endpoint-title { grid-template-columns: 23px 1fr 52px; }
  .endpoint-title em { line-height: 1.25; }

  .mini-node span,
  .mini-node small,
  .mini-audit,
  .diag-file span,
  .diag-file small,
  .diag-signals > div,
  .diag-signals em,
  .diag-verdict,
  .diag-tree-root small,
  .diag-tree li,
  .diag-tree li.safe b,
  .diag-tree li.risk b,
  .diag-note,
  .diag-doc span,
  .diag-doc small,
  .diag-lanes .lane,
  .diag-gates .gate strong,
  .diag-gates .gate small,
  .diag-outcomes span { font-size: 9px; }
}