:root {
  --bg: #f5f7fb;
  --paper: #ffffff;
  --paper-soft: #eef3fb;
  --ink: #142033;
  --text: #2b3547;
  --muted: #66758d;
  --line: #dce4ef;
  --blue: #1f5eff;
  --blue-deep: #123a8f;
  --cyan: #14b8d4;
  --green: #0f9f6e;
  --orange: #ff9a3c;
  --shadow: 0 24px 70px rgba(31, 49, 82, .12);
  --shadow-soft: 0 12px 36px rgba(31, 49, 82, .08);
  --radius: 24px;
  --max: 1380px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-width: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 8% 0%, rgba(31,94,255,.10), transparent 30%),
    radial-gradient(circle at 92% 4%, rgba(20,184,212,.09), transparent 28%),
    linear-gradient(180deg, #fbfdff 0%, var(--bg) 48%, #fff 100%);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(31,94,255,.038) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31,94,255,.038) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(180deg, #000, transparent 76%);
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
img, video, svg { display: block; max-width: 100%; }
.page { overflow-x: clip; }
.wrap { width: min(var(--max), calc(100% - clamp(28px, 7vw, 108px))); margin: 0 auto; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(220,228,239,.72);
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(18px);
}
.nav {
  width: min(var(--max), calc(100% - clamp(28px, 7vw, 108px)));
  min-height: 74px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 30px;
}
.nav-brand { color: var(--ink); font-size: 20px; font-weight: 900; white-space: nowrap; }
.nav-links { margin-left: auto; display: flex; align-items: center; gap: 24px; color: var(--muted); font-size: 14px; font-weight: 700; }
.nav-links a { transition: color .2s ease; }
.nav-links a:hover, .nav-links a.active { color: var(--blue); }
.nav-home { padding: 7px 11px; border: 1px solid rgba(207,221,240,.92); border-radius: 999px; background: rgba(255,255,255,.54); }
.nav-action { padding: 10px 16px; border-radius: 999px; color: #fff !important; background: var(--ink); box-shadow: var(--shadow-soft); }
.nav-dropdown { position: relative; align-self: stretch; display: flex; align-items: center; }
.nav-dropdown-trigger { display: inline-flex; align-items: center; gap: 6px; }
.nav-dropdown-trigger::after { content: ""; width: 6px; height: 6px; margin-top: -3px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg); transition: transform .2s ease; }
.nav-dropdown-menu {
  position: absolute;
  top: calc(100% - 7px);
  right: -12px;
  width: 184px;
  padding: 7px;
  border: 1px solid rgba(220,228,239,.92);
  border-radius: 16px;
  background: rgba(255,255,255,.76);
  box-shadow: 0 16px 40px rgba(31,49,82,.13);
  backdrop-filter: blur(20px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}
.nav-dropdown-menu a { display: block; padding: 8px 10px; border-radius: 9px; color: var(--ink); }
.nav-dropdown-menu a:hover { color: var(--blue); background: #f1f5fc; }
.nav-dropdown-menu strong { font-size: 13px; }
.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-dropdown:hover .nav-dropdown-trigger::after,
.nav-dropdown:focus-within .nav-dropdown-trigger::after { transform: rotate(225deg); }

/* 功能实录页、技术页沿用主页导航结构与样式 */
.demo-page main, .research-page main, .about-page main { padding-top: 74px; }
.demo-page .topbar, .research-page .topbar, .about-page .topbar { position: fixed; width: 100%; border-bottom: 0; background: rgba(255,255,255,.94); box-shadow: 0 8px 28px rgba(31,49,82,.08); }
.demo-page .nav, .research-page .nav, .about-page .nav { width: min(1480px, calc(100% - clamp(28px, 6vw, 96px))); min-height: 74px; justify-content: space-between; }
.demo-page .nav-brand-text, .research-page .nav-brand-text, .about-page .nav-brand-text { flex: 0 0 auto; color: var(--ink); font-size: 22px; font-weight: 850; letter-spacing: .02em; white-space: nowrap; }
.demo-page .links, .research-page .links, .about-page .links { display: flex; align-items: center; margin-left: 0; color: var(--text); font-size: 15px; font-weight: 680; }
.demo-page .nav-primary, .research-page .nav-primary, .about-page .nav-primary { margin-left: clamp(34px, 4vw, 72px); gap: clamp(24px, 2.8vw, 44px); }
.demo-page .nav-secondary, .research-page .nav-secondary, .about-page .nav-secondary { margin-left: auto; gap: clamp(22px, 2.4vw, 38px); }
.demo-page .links a:hover, .demo-page .links a.active, .research-page .links a:hover, .research-page .links a.active, .about-page .links a:hover, .about-page .links a.active { color: var(--blue); }
.demo-page .nav-action, .research-page .nav-action, .about-page .nav-action { padding: 0; border-radius: 0; color: inherit !important; background: transparent; box-shadow: none; }

.sub-hero { padding: clamp(54px, 8vw, 108px) 0 72px; }
.sub-hero-grid { display: grid; grid-template-columns: minmax(0, .88fr) minmax(460px, 1.12fr); gap: clamp(44px, 7vw, 100px); align-items: center; }
.kicker { margin-bottom: 14px; color: var(--blue); font-size: 13px; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { color: var(--ink); line-height: 1.18; }
h1 { margin-bottom: 22px; font-size: clamp(42px, 5vw, 72px); letter-spacing: -.04em; }
h2 { margin-bottom: 0; font-size: clamp(32px, 3.6vw, 52px); letter-spacing: -.025em; }
h3 { margin-bottom: 12px; font-size: 22px; }
.hero-copy { max-width: 680px; margin-bottom: 28px; color: var(--muted); font-size: clamp(16px, 1.6vw, 20px); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.button { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; padding: 0 20px; border-radius: 10px; color: #fff; background: linear-gradient(135deg, var(--blue), var(--cyan)); font-size: 14px; font-weight: 820; box-shadow: 0 16px 32px rgba(31,94,255,.20); }
.button.secondary { border: 1px solid var(--line); color: var(--ink); background: rgba(255,255,255,.82); box-shadow: var(--shadow-soft); }
.hero-media { position: relative; min-height: 490px; border-radius: 30px; overflow: hidden; box-shadow: var(--shadow); background: #10213d; }
.hero-media img { width: 100%; height: 100%; min-height: 490px; object-fit: cover; }
.hero-media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 40%, rgba(8,18,37,.78)); }
.hero-media-caption { position: absolute; z-index: 2; left: 28px; right: 28px; bottom: 26px; color: #fff; }
.hero-media-caption span { display: inline-flex; margin-bottom: 10px; padding: 6px 10px; border: 1px solid rgba(255,255,255,.32); border-radius: 999px; background: rgba(9,22,44,.38); font-size: 12px; font-weight: 760; backdrop-filter: blur(10px); }
.hero-media-caption strong { display: block; max-width: 620px; font-size: 22px; line-height: 1.45; }

.local-nav { position: sticky; top: 74px; z-index: 35; border-top: 1px solid rgba(220,228,239,.7); border-bottom: 1px solid rgba(220,228,239,.86); background: rgba(255,255,255,.90); backdrop-filter: blur(18px); }
.local-nav-inner { min-height: 58px; display: flex; align-items: center; gap: 28px; overflow-x: auto; scrollbar-width: none; }
.local-nav-inner::-webkit-scrollbar { display: none; }
.local-nav a { flex: 0 0 auto; color: var(--muted); font-size: 13px; font-weight: 760; }
.local-nav a:hover { color: var(--blue); }

.section { padding: clamp(76px, 9vw, 126px) 0; }
.section[id] { scroll-margin-top: 88px; }
.section.soft { border-top: 1px solid rgba(220,228,239,.72); border-bottom: 1px solid rgba(220,228,239,.72); background: rgba(238,243,251,.62); }
.section.dark { color: #dbe7f7; background: #101c31; }
.section.dark h2, .section.dark h3 { color: #fff; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 46px; }
.section-head > p { max-width: 600px; margin-bottom: 5px; color: var(--muted); }
.section.dark .section-head > p { color: #9eb0c8; }

.tech-page-hero { padding-bottom: clamp(58px, 7vw, 88px); border-bottom: 0; }
.tech-page-hero h1 { max-width: 840px; }
.tech-page-hero .hero-copy { max-width: 520px; margin-bottom: 0; }
#concept { border-top: 0; }

.cognition-scroll { height: 340vh; scroll-margin-top: 74px; background: linear-gradient(135deg, rgba(238,244,255,.88), rgba(247,251,255,.96) 55%, rgba(233,248,251,.72)); }
.cognition-scroll-stage { position: sticky; top: 74px; display: grid; height: calc(100vh - 74px); grid-template-columns: minmax(500px, .82fr) minmax(0, 1.18fr); gap: clamp(40px, 4.4vw, 68px); align-items: center; }
.cognition-scroll-heading h2 { margin-bottom: 46px; font-size: clamp(54px, 3.9vw, 68px); line-height: 1.12; letter-spacing: -.04em; }
.cognition-scroll-heading h2 span { display: block; white-space: nowrap; }
.cognition-scroll-progress { display: flex; flex-direction: column; align-items: flex-start; gap: 12px; }
.cognition-scroll-progress span { position: relative; padding-left: 36px; color: #8a97aa; font-size: 13px; font-weight: 760; transition: color .3s ease, transform .3s ease; }
.cognition-scroll-progress span::before { position: absolute; top: calc(50% - 2px); left: 0; width: 20px; height: 4px; content: ""; border-radius: 999px; background: #aebbd0; transition: width .3s ease, background .3s ease; }
.cognition-scroll-progress span.is-active { color: var(--blue); transform: translateX(8px); }
.cognition-scroll-progress span.is-active::before { width: 28px; background: var(--blue); }
.cognition-scroll-panels { position: relative; min-width: 0; height: min(76vh, 740px); }
.cognition-scroll-panel { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: center; visibility: hidden; opacity: 0; transform: translateY(18px) scale(.988); transition: opacity .52s ease, transform .52s ease, visibility .52s ease; }
.cognition-scroll-panel.is-active { z-index: 2; visibility: visible; opacity: 1; transform: none; }
.cognition-scroll-panel figure { overflow: hidden; aspect-ratio: 16 / 9; margin: 0 0 26px; border: 1px solid rgba(201,216,237,.92); border-radius: 22px; background: #dfe8f7; box-shadow: 0 26px 64px rgba(30,61,102,.15); }
.cognition-scroll-panel figure img { width: 100%; height: 100%; object-fit: cover; }
.cognition-panel-copy { max-width: 760px; }
.cognition-panel-copy > span { display: block; margin-bottom: 8px; color: var(--blue); font-size: 11px; font-weight: 850; letter-spacing: .1em; }
.cognition-panel-copy h3 { margin-bottom: 10px; font-size: clamp(25px, 2.4vw, 36px); }
.cognition-panel-copy p { max-width: 760px; margin: 0; color: var(--muted); font-size: 15px; line-height: 1.82; }
.cognition-keywords { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.cognition-keywords i { padding: 6px 10px; border: 1px solid #d4e0f1; border-radius: 999px; color: var(--blue-deep); background: rgba(255,255,255,.72); font-size: 10px; font-style: normal; font-weight: 760; }

.concept-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.concept-lead { max-width: 860px; margin: -20px 0 34px; color: var(--muted); font-size: 15px; line-height: 1.85; }
.concept-summary { display: grid; grid-template-columns: minmax(180px, .32fr) minmax(0, 1fr); gap: 28px; align-items: start; margin-top: 22px; padding: 24px 26px; border-left: 3px solid var(--blue); border-radius: 0 14px 14px 0; background: rgba(255,255,255,.76); }
.concept-summary strong { color: var(--ink); font-size: 16px; }
.concept-summary p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.8; }

.architecture-loop { display: flex; align-items: center; justify-content: center; gap: 18px; margin-top: 34px; padding: 13px 18px; border: 1px solid rgba(255,255,255,.11); border-radius: 12px; background: rgba(255,255,255,.05); }
.architecture-loop span { color: #61d4ec; font-size: 11px; font-weight: 800; }
.architecture-loop strong { color: #dbe7f7; font-size: 12px; font-weight: 650; }

/* ===== 系统架构：品牌紫蓝点缀与运行态（呼应 Logo：紫 #9A7CFF → 蓝 #5DBDFF） ===== */
#architecture { position: relative; overflow: hidden; }
#architecture::before {
  position: absolute;
  top: -24%;
  right: -12%;
  width: min(780px, 64vw);
  aspect-ratio: 1;
  content: "";
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, rgba(154,124,255,.20) 0%, rgba(94,200,255,.09) 44%, rgba(94,200,255,0) 72%);
}
#architecture > .wrap { position: relative; z-index: 1; }
#architecture .section-head { margin-bottom: 34px; }
#architecture .kicker {
  width: fit-content;
  color: #a99bff;
  background: linear-gradient(90deg, #9A7CFF 0%, #5DBDFF 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.architecture-flow .flow-step {
  display: flex;
  flex-direction: column;
  padding: 26px 22px;
  border-color: rgba(255,255,255,.085);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255,255,255,.062), rgba(255,255,255,.026));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.058), inset 0 -20px 34px rgba(9,18,38,.34);
  transition: border-color .5s ease, background .5s ease, box-shadow .5s ease, transform .5s ease;
}
.architecture-flow .flow-step::before {
  position: absolute;
  top: 0;
  right: 18%;
  left: 18%;
  height: 1px;
  content: "";
  opacity: 0;
  background: linear-gradient(90deg, rgba(154,124,255,0), #9A7CFF 34%, #5DBDFF 66%, rgba(93,189,255,0));
  transition: opacity .5s ease;
}
.architecture-flow .flow-step i {
  width: fit-content;
  font-size: 28px;
  color: #9A7CFF;
  background: linear-gradient(90deg, #9A7CFF 0%, #5DBDFF 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: saturate(.62) brightness(.86);
  transition: filter .5s ease;
}
.architecture-flow .flow-step b { margin: 26px 0 0; letter-spacing: .01em; }
.architecture-flow .flow-step span {
  margin-top: auto;
  padding-top: 14px;
  color: #93a4be;
  font-size: 12.5px;
}
.architecture-flow .flow-step:not(:last-child)::after {
  right: -24px;
  width: 24px;
  color: rgba(150,170,205,.5);
  transition: color .5s ease, text-shadow .5s ease;
}
.architecture-flow .flow-step:hover { border-color: rgba(154,124,255,.32); }
.architecture-flow .flow-step:hover::before { opacity: .8; }

.architecture-flow .flow-step.is-active {
  border-color: rgba(154,124,255,.44);
  background: linear-gradient(180deg, rgba(255,255,255,.086), rgba(255,255,255,.038));
  box-shadow: inset 0 1px 0 rgba(255,255,255,.09), 0 14px 36px rgba(74,74,180,.22), 0 0 0 1px rgba(94,189,255,.10);
  transform: translateY(-3px);
}
.architecture-flow .flow-step.is-active::before { opacity: 1; }
.architecture-flow .flow-step.is-active i { filter: saturate(1.15) brightness(1.18) drop-shadow(0 0 12px rgba(154,124,255,.5)); }
.architecture-flow .flow-step.is-active:not(:last-child)::after { color: #5EC8FF; text-shadow: 0 0 14px rgba(94,200,255,.55); }

/* 底部闭环条：极细回路 + 缓慢流光，走到 05 时整条高亮一次 */
.architecture-loop {
  position: relative;
  overflow: hidden;
  border-color: rgba(255,255,255,.09);
  background: linear-gradient(90deg, rgba(154,124,255,.055), rgba(94,189,255,.04));
  transition: border-color .6s ease, background .6s ease, box-shadow .6s ease;
}
.architecture-loop::before {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, rgba(154,124,255,0), rgba(154,124,255,.26) 22%, rgba(93,189,255,.26) 78%, rgba(93,189,255,0));
}
.architecture-loop::after {
  position: absolute;
  bottom: 0;
  left: -34%;
  width: 34%;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, rgba(154,124,255,0), #9A7CFF 45%, #5EC2FF 55%, rgba(93,189,255,0));
  animation: architecture-loop-flow 7s linear infinite;
}
.architecture-loop span { color: #a99bff; letter-spacing: .04em; }
.architecture-loop.is-running {
  border-color: rgba(154,124,255,.40);
  background: linear-gradient(90deg, rgba(154,124,255,.12), rgba(94,189,255,.085));
  box-shadow: 0 12px 34px rgba(84,84,190,.22), inset 0 1px 0 rgba(255,255,255,.06);
}
.architecture-loop.is-running::after { animation-duration: 2.6s; }

@keyframes architecture-loop-flow {
  to { transform: translateX(394%); }
}

@media (prefers-reduced-motion: reduce) {
  .architecture-flow .flow-step,
  .architecture-flow .flow-step i,
  .architecture-flow .flow-step::after,
  .architecture-flow .flow-step::before,
  .architecture-loop,
  .architecture-loop::after { transition: none; animation: none; }
  .architecture-flow .flow-step.is-active { transform: none; }
}

.key-mechanism-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.key-mechanism-card { overflow: hidden; border: 1px solid rgba(207,219,236,.9); border-radius: 17px; background: rgba(255,255,255,.92); box-shadow: 0 16px 38px rgba(30,61,102,.09); }
.mechanism-media { position: relative; overflow: hidden; aspect-ratio: 16 / 10; background: #12213b; }
.mechanism-media::after { position: absolute; inset: auto 0 0; height: 38%; content: ""; background: linear-gradient(180deg, transparent, rgba(8,22,44,.3)); pointer-events: none; }
.mechanism-media video { display: block; width: 100%; height: 100%; object-fit: cover; filter: saturate(.78) contrast(1.02); }
.mechanism-abstract { background: #f2f5f8; }
.mechanism-abstract::after { display: none; }
.mechanism-abstract svg { display: block; width: 100%; height: 100%; }
.mechanism-abstract .abstract-node { transform-box: fill-box; transform-origin: center; }
.mechanism-abstract .node-request > path,
.mechanism-abstract .node-city > rect,
.mechanism-abstract .node-time > rect,
.mechanism-abstract .node-tool > rect,
.mechanism-abstract .node-output > rect,
.mechanism-abstract .node-understand > rect { transform-box: fill-box; transform-origin: center; animation: task-surface-breathe 9s ease-in-out infinite; }
.mechanism-abstract .node-understand > rect { stroke: #6688af; stroke-width: 1; animation: task-surface-breathe 9s ease-in-out infinite, task-core-response 9s ease-in-out infinite; }
.mechanism-abstract .node-request > path { animation: task-surface-breathe 9s ease-in-out infinite; }
.mechanism-abstract .node-city > rect,
.mechanism-abstract .node-time > rect,
.mechanism-abstract .node-tool > rect { animation: task-field-response 9s ease-in-out infinite; }
.mechanism-abstract .node-time > rect { animation-delay: .16s; }
.mechanism-abstract .node-tool > rect { animation-delay: .32s; }
.mechanism-abstract .node-output > rect { animation: task-output-response 9s ease-in-out infinite; }
.mechanism-abstract .task-flow-highlights { fill: none; stroke: #5685bd; stroke-width: 2.5; stroke-linecap: round; pointer-events: none; }
.mechanism-abstract .task-flow-highlights path { stroke-dasharray: 12 100; animation: task-trace 9s linear infinite; }
.mechanism-abstract .abstract-lines { stroke: #9cacc0; stroke-width: 1.6; stroke-dasharray: none; }
.mechanism-abstract .understand-stem { stroke: #5c7da6; stroke-width: 2; }
.mechanism-abstract .branch-city,
.mechanism-abstract .branch-time,
.mechanism-abstract .branch-tool { stroke: #8299b4; stroke-width: 1.8; }
.mechanism-abstract .node-city > circle,
.mechanism-abstract .node-time > circle,
.mechanism-abstract .node-tool > circle,
.mechanism-abstract .node-output > circle { fill: #426fa7; r: 5px; }
.mechanism-abstract .node-city text:first-of-type,
.mechanism-abstract .node-time text:first-of-type,
.mechanism-abstract .node-tool text:first-of-type { fill: #4d6076; font-size: 13px; }
.mechanism-abstract .understand-split > circle { transform-box: fill-box; transform-origin: center; animation: understand-split-pulse 5.5s ease-in-out infinite; }
.mechanism-abstract .abstract-orb { transform-box: fill-box; transform-origin: center; animation: abstract-orb 12s ease-in-out infinite alternate; }
.mechanism-abstract .orb-two { animation-delay: -2.4s; }
.mechanism-abstract .orb-three { animation-delay: -4.8s; }
.mechanism-abstract .flow-particle { filter: drop-shadow(0 0 2px rgba(59,108,173,.22)); }
@keyframes task-surface-breathe { 0%, 100% { transform: scale(1); } 28%, 44% { transform: scale(1.012); } }
@keyframes task-core-response { 0%, 12%, 55%, 100% { stroke: #6688af; stroke-width: 1; } 22%, 34% { stroke: #a4c8ef; stroke-width: 2; } }
@keyframes task-field-response { 0%, 34%, 78%, 100% { fill: #fff; stroke: #b7c5d4; stroke-width: 1; } 46%, 60% { fill: #edf4fc; stroke: #608abb; stroke-width: 1.6; } }
@keyframes task-output-response { 0%, 76%, 100% { fill: #e7eef7; stroke: #8aa2bf; stroke-width: 1; } 84%, 93% { fill: #d7e7f8; stroke: #426fa7; stroke-width: 1.8; } }
@keyframes task-trace { 0%, 30% { stroke-dashoffset: 12; opacity: 0; } 33% { opacity: .65; } 80% { opacity: .65; } 86%, 100% { stroke-dashoffset: -100; opacity: 0; } }
@keyframes abstract-shape-breathe { 0%, 100% { transform: scale(.992); } 50% { transform: scale(1.018); } }
@keyframes understand-split-pulse { 0%, 100% { transform: scale(.92); opacity: .72; } 48%, 62% { transform: scale(1.12); opacity: 1; } }
@keyframes abstract-line-flow { to { stroke-dashoffset: -40; } }
@keyframes abstract-orb { from { opacity: .48; transform: translate(-1px, 1px); } to { opacity: .62; transform: translate(2px, -1px); } }
@media (prefers-reduced-motion: reduce) {
  .mechanism-abstract .node-understand > rect { animation: none; }
  .mechanism-abstract .task-flow-highlights, .mechanism-abstract .split-burst { display: none; }
  .mechanism-abstract .node-request > path, .mechanism-abstract .node-city > rect, .mechanism-abstract .node-time > rect, .mechanism-abstract .node-tool > rect, .mechanism-abstract .node-output > rect, .mechanism-abstract .node-understand > circle, .mechanism-abstract .understand-split > circle, .mechanism-abstract .abstract-lines, .mechanism-abstract .abstract-orb { animation: none; }
  .mechanism-abstract .flow-particle { display: none; }
}
.experience-abstract { background: #f6f8fa; }
.experience-abstract::after { display: none; }
.experience-abstract svg { display: block; width: 100%; height: 100%; }
.experience-abstract .decision-core { transform-box: fill-box; transform-origin: center; animation: decision-core-breathe 8s ease-in-out infinite; }
.experience-abstract .decision-ring { transform-box: fill-box; transform-origin: center; }
.experience-abstract .ring-outer { animation: decision-ring 8s ease-out infinite; }
.experience-abstract .ring-inner { animation: decision-register 8s ease-in-out infinite; }
.experience-abstract .experience-particle { filter: drop-shadow(0 0 2px rgba(59,108,173,.18)); }
.experience-abstract .source-glyph { animation: experience-source-response 8s ease-in-out infinite; }
.experience-abstract .source-history .source-glyph { animation-delay: .4s; }
.experience-abstract .source-state .source-glyph { animation-delay: .8s; }
@keyframes decision-core-breathe { 0%, 36%, 100% { transform: scale(1); stroke: #96a9be; stroke-width: 1; } 57%, 72% { transform: scale(1.015); stroke: #547caa; stroke-width: 2; } }
@keyframes decision-ring { 0%, 48% { opacity: .12; transform: scale(.92); } 60% { opacity: .48; } 86%, 100% { opacity: 0; transform: scale(1.07); } }
@keyframes decision-register { 0%, 32%, 100% { stroke-dashoffset: 0; opacity: .35; } 60%, 78% { stroke-dashoffset: 34; opacity: .85; } }
@keyframes experience-source-response { 0%, 54%, 100% { opacity: .55; } 10%, 35% { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  .experience-abstract .decision-core, .experience-abstract .decision-ring, .experience-abstract .source-glyph { animation: none; }
  .experience-abstract .experience-particle { display: none; }
}
.capability-abstract { --capability-accent: #467680; --capability-tint: #e5eff0; background: #f1f5f5; }
.capability-abstract::after { display: none; }
.capability-abstract svg { display: block; width: 100%; height: 100%; }
.capability-abstract .standby { opacity: .72; }
.capability-abstract .capability-pool { fill: #fff; fill-opacity: .68; stroke: #c4d2d4; }
.capability-abstract .selected > circle,
.capability-abstract .request-signal { fill: var(--capability-accent); }
.capability-abstract .capability-entry-lines { stroke: #8eaeb4; }
.capability-abstract .capability-connectors path { stroke: var(--capability-accent); }
.capability-abstract .selected > rect { transform-box: fill-box; transform-origin: center; animation: capability-select 8s ease-in-out infinite; }
.capability-abstract .selected-model > rect { animation-delay: 0s; }
.capability-abstract .selected-skill > rect { animation-delay: .75s; }
.capability-abstract .selected-device > rect { animation-delay: 1.5s; }
.capability-abstract .capability-entry-lines path { stroke-dasharray: 5 8; stroke-dashoffset: 42; opacity: .2; animation: capability-entry 8s ease-in-out infinite; }
.capability-abstract .capability-entry-lines .entry-skill { animation-delay: .75s; }
.capability-abstract .capability-entry-lines .entry-device { animation-delay: 1.5s; }
.capability-abstract .capability-connectors path { stroke-dasharray: 5 7; stroke-dashoffset: 36; opacity: .28; animation: capability-connector 8s ease-in-out infinite; }
.capability-abstract .capability-connectors .connector-skill { animation-delay: .75s; }
.capability-abstract .capability-connectors .connector-device { animation-delay: 1.5s; }
.capability-abstract .capability-hub { transform-box: fill-box; transform-origin: center; animation: capability-hub 8s ease-in-out infinite; }
.capability-abstract .capability-output-flow { stroke-dasharray: 12 8; animation: capability-output 8s linear infinite; }
.capability-abstract .capability-output-shine { opacity: .35; }
.capability-abstract .request-signal { filter: drop-shadow(0 0 2px rgba(59,108,173,.18)); }
@keyframes capability-select { 0%, 14%, 100% { transform: scale(1); fill: #fff; stroke: #bdcdcf; } 28%, 65% { transform: scale(1.012); fill: var(--capability-tint); stroke: var(--capability-accent); } 84% { transform: scale(1); fill: #fff; stroke: #bdcdcf; } }
@keyframes capability-entry { 0%, 14%, 100% { opacity: .12; stroke-dashoffset: 42; } 26%, 56% { opacity: .85; stroke-dashoffset: 0; } 78% { opacity: .2; } }
@keyframes capability-connector { 0%, 26%, 100% { opacity: .12; stroke-dashoffset: 36; } 43%, 72% { opacity: .9; stroke-dashoffset: 0; } 94% { opacity: .15; } }
@keyframes capability-hub { 0%, 44%, 100% { transform: scale(1); stroke: #88a4ac; } 62%, 85% { transform: scale(1.06); stroke: var(--capability-accent); } }
@keyframes capability-output { 0%, 51% { opacity: .15; stroke-dashoffset: 0; } 60% { opacity: 1; } 86% { opacity: 1; stroke-dashoffset: -60; } 100% { opacity: .15; stroke-dashoffset: -80; } }
@media (prefers-reduced-motion: reduce) {
  .capability-abstract .selected > rect, .capability-abstract .capability-entry-lines path, .capability-abstract .capability-connectors path, .capability-abstract .capability-hub, .capability-abstract .capability-output-flow { animation: none; }
  .capability-abstract .request-signal { display: none; }
  .capability-abstract .capability-connectors path { opacity: .8; stroke-dashoffset: 0; }
  .capability-abstract .capability-entry-lines path { opacity: .65; stroke-dashoffset: 0; }
  .capability-abstract .selected > rect { fill: var(--capability-tint); stroke: var(--capability-accent); }
}
.cross-space-abstract { background: #f2f5f8; }
.cross-space-abstract::after { display: none; }
.cross-space-abstract svg { display: block; width: 100%; height: 100%; }
.cross-space-abstract .digital-layer { fill: #fff; fill-opacity: .85; stroke: none; }
.cross-space-abstract .space-boundary { fill: #e2e8ee; fill-opacity: .9; }
.cross-space-abstract .space-agent > ellipse { fill: #f3f6f9; stroke: #b6c5d4; stroke-width: 1; opacity: .85; }
.cross-space-abstract .space-link { stroke: #a3b5ca; stroke-width: 1.5; }
.cross-space-abstract .cloud-panel-shape { transform-box: fill-box; transform-origin: center; animation: cloud-panel-breathe 9s ease-in-out infinite; }
.cross-space-abstract .agent-status { transform-box: fill-box; transform-origin: center; animation: agent-status 9s ease-in-out infinite; }
.cross-space-abstract .agent-drone .agent-status { animation-delay: .3s; }
.cross-space-abstract .agent-robot .agent-status { animation-delay: .6s; }
.cross-space-abstract .physical-contour { opacity: .4; }
.cross-space-abstract .space-particle { filter: drop-shadow(0 0 2px rgba(59,108,173,.18)); }
@keyframes space-link-flow { to { stroke-dashoffset: -44; } }
@keyframes cloud-panel-breathe { 0%, 100% { transform: scale(1); stroke: #6482a3; } 10%, 19%, 88%, 93% { transform: scale(1.01); stroke: #a4c8ef; } 45%, 60% { transform: scale(1); stroke: #6482a3; } }
@keyframes agent-status { 0%, 30%, 87%, 100% { opacity: .35; transform: scale(1); fill: #8c9daf; } 38%, 64% { opacity: 1; transform: scale(1.1); fill: #426fa7; } }
@keyframes contour-drift { to { stroke-dashoffset: -52; } }
@media (prefers-reduced-motion: reduce) {
  .cross-space-abstract .space-link, .cross-space-abstract .cloud-panel-shape, .cross-space-abstract .agent-status, .cross-space-abstract .physical-contour { animation: none; }
  .cross-space-abstract .space-particle { display: none; }
}
.mechanism-copy { min-height: 118px; padding: 20px 21px 22px; }
.key-mechanism-card h3 { margin: 0 0 10px; font-size: 19px; }
.key-mechanism-card p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.72; }

.research-subhead { margin: 64px 0 26px; }
.research-subhead > span { color: var(--blue); font-size: 11px; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.research-subhead h3 { margin: 10px 0 8px; font-size: 28px; }
.research-subhead p { max-width: 720px; margin: 0; color: var(--muted); font-size: 13px; }
.research-links { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.research-links span { padding: 8px 11px; border: 1px dashed #bdcbe0; border-radius: 9px; color: var(--muted); background: rgba(255,255,255,.66); font-size: 11px; font-weight: 700; }
.research-results-section { position: relative; overflow: hidden; background: linear-gradient(180deg, #fff 0%, #f8fbff 58%, #fff 100%); }
.research-results-section::before { position: absolute; top: 8%; right: -8%; width: 42vw; height: 42vw; border-radius: 50%; background: radial-gradient(circle, rgba(69,123,229,.10), rgba(69,123,229,0) 68%); content: ""; pointer-events: none; }
.research-results-section .wrap { position: relative; z-index: 1; }
.research-results-head { margin-bottom: 50px; }

.challenge-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.challenge-list { border-top: 1px solid var(--line); }
.challenge-item { display: grid; grid-template-columns: 54px minmax(150px, .42fr) minmax(0, 1.58fr); gap: 22px; align-items: baseline; padding: 24px 4px; border-bottom: 1px solid var(--line); }
.challenge-item > span { color: var(--blue); font-size: 12px; font-weight: 850; }
.challenge-item h3 { margin: 0; font-size: 19px; }
.challenge-item p { max-width: 720px; margin: 0; color: var(--muted); font-size: 14px; }
.info-card { min-height: 230px; padding: 26px; border: 1px solid rgba(220,228,239,.9); border-radius: 18px; background: rgba(255,255,255,.82); box-shadow: var(--shadow-soft); }
.info-index { display: inline-grid; width: 34px; height: 34px; place-items: center; margin-bottom: 30px; border-radius: 9px; color: var(--blue-deep); background: #eaf1ff; font-size: 12px; font-weight: 900; }
.info-card h3 { font-size: 19px; }
.info-card p { margin-bottom: 0; color: var(--muted); font-size: 14px; }

.feature-panel { display: grid; grid-template-columns: minmax(0, 1.03fr) minmax(380px, .97fr); border: 1px solid var(--line); border-radius: 26px; overflow: hidden; background: #fff; box-shadow: var(--shadow); }
.feature-panel-media { min-height: 520px; }
.feature-panel-media img { width: 100%; height: 100%; object-fit: cover; }
.feature-panel-copy { padding: clamp(34px, 5vw, 70px); align-self: center; }
.feature-panel-copy > span { color: var(--blue); font-size: 13px; font-weight: 850; }
.feature-panel-copy h3 { margin-top: 12px; font-size: clamp(28px, 3vw, 42px); }
.feature-panel-copy p { color: var(--muted); }
.bullet-list { margin: 26px 0 0; padding: 0; list-style: none; display: grid; gap: 13px; }
.bullet-list li { position: relative; padding-left: 24px; color: var(--text); font-size: 14px; }
.bullet-list li::before { content: ""; position: absolute; left: 0; top: .62em; width: 8px; height: 8px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 5px rgba(20,184,212,.12); }

.case-overview { display: grid; grid-template-columns: minmax(340px, .78fr) minmax(0, 1.22fr); gap: clamp(34px, 5vw, 76px); align-items: center; padding: clamp(26px, 4vw, 48px); border: 1px solid var(--line); border-radius: 24px; background: rgba(255,255,255,.88); }
.case-copy > span, .case-subhead span, .case-material > span { color: var(--blue); font-size: 11px; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.case-copy h3 { margin-top: 12px; font-size: clamp(25px, 2.5vw, 34px); }
.case-copy p { color: var(--muted); font-size: 14px; line-height: 1.82; }
.case-copy p:last-child { margin-bottom: 0; }
.case-figure { overflow: hidden; margin: 0; border-radius: 18px; background: #dfe7f3; }
.case-figure img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.case-figure figcaption { padding: 12px 15px; color: var(--muted); background: #fff; font-size: 11px; }
.case-flow-block { margin-top: 28px; padding: clamp(26px, 4vw, 42px); border: 1px solid var(--line); border-radius: 24px; background: #fff; }
.case-subhead { display: flex; align-items: end; justify-content: space-between; gap: 32px; margin-bottom: 26px; }
.case-subhead h3 { margin: 8px 0 0; font-size: 25px; }
.case-subhead p { max-width: 520px; margin: 0; color: var(--muted); font-size: 13px; }
.case-flow { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.case-flow .flow-step { min-height: 168px; border-color: var(--line); background: #f6f9fe; }
.case-flow .flow-step i { color: var(--blue); }
.case-flow .flow-step b { margin-top: 24px; color: var(--ink); }
.case-flow .flow-step span { color: var(--muted); }
.case-flow .flow-step:not(:last-child)::after { color: var(--blue); }
.case-materials { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 20px; }
.case-material { min-height: 126px; padding: 20px; border: 1px dashed #bfcce0; border-radius: 16px; background: rgba(255,255,255,.62); }
.case-material strong { display: block; margin-top: 15px; color: var(--ink); font-size: 15px; }
.case-material small { display: block; margin-top: 6px; color: var(--muted); font-size: 11px; }

.flow { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; }
.flow-step { position: relative; min-height: 190px; padding: 24px 20px; border: 1px solid rgba(255,255,255,.11); border-radius: 16px; background: rgba(255,255,255,.055); }
.flow-step:not(:last-child)::after { content: "→"; position: absolute; z-index: 2; right: -12px; top: 50%; width: 24px; color: #61d4ec; text-align: center; transform: translateY(-50%); }
.flow-step i { display: block; color: #61d4ec; font-size: 26px; font-style: normal; font-weight: 900; }
.flow-step b { display: block; margin: 30px 0 8px; color: #fff; font-size: 16px; }
.flow-step span { color: #9eb0c8; font-size: 13px; line-height: 1.55; }

/* 五层架构：占满整行并留出舒展的卡片间隙。
   必须位于 .flow 之后（同为单类选择器，靠源码顺序取胜）；
   更窄断点由 @media 内的 .flow 规则按同样规则覆盖为 3 列 / 2 列。 */
.architecture-flow { grid-template-columns: repeat(5, minmax(0, 1fr)); column-gap: 24px; row-gap: 18px; }

.scene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.scene-card { position: relative; min-height: 440px; display: flex; flex-direction: column; justify-content: flex-end; padding: 28px; border-radius: 22px; overflow: hidden; color: #fff; box-shadow: var(--shadow-soft); background: #17243b center/cover; }
.scene-card::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(9,19,38,.06), rgba(9,19,38,.88)); }
.scene-card > * { position: relative; z-index: 1; }
.scene-card .tag { align-self: flex-start; margin-bottom: auto; padding: 7px 10px; border: 1px solid rgba(255,255,255,.28); border-radius: 999px; background: rgba(9,19,38,.32); font-size: 12px; font-weight: 760; backdrop-filter: blur(10px); }
.scene-card h3 { color: #fff; font-size: 24px; }
.scene-card p { margin-bottom: 0; color: #d8e2ef; font-size: 14px; }

.record-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.record-card { overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: #fff; box-shadow: var(--shadow-soft); }
.record-media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: #12213b; }
.record-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
.record-card:hover .record-media img { transform: scale(1.035); }
.play { position: absolute; left: 20px; bottom: 18px; width: 46px; height: 46px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: rgba(31,94,255,.92); box-shadow: 0 12px 28px rgba(15,35,70,.28); font-size: 14px; }
.record-body { padding: 22px; }
.record-status { display: inline-block; margin-bottom: 11px; color: var(--green); font-size: 12px; font-weight: 820; }
.record-body h3 { font-size: 19px; }
.record-body p { margin-bottom: 14px; color: var(--muted); font-size: 13px; }
.record-tags { display: flex; flex-wrap: wrap; gap: 7px; }
.record-tags span { padding: 5px 8px; border-radius: 999px; color: var(--blue-deep); background: #eaf1ff; font-size: 11px; font-weight: 720; }
.record-placeholder .record-media { display: grid; place-items: center; background: linear-gradient(135deg, #eaf1ff, #dff6fb); }
.record-placeholder .record-media span { color: var(--blue-deep); font-weight: 850; }
.record-summary { display: grid; gap: 10px; margin: 17px 0 0; }
.record-summary > div { padding-top: 10px; border-top: 1px solid var(--line); }
.record-summary dt { color: var(--blue-deep); font-size: 11px; font-weight: 820; }
.record-summary dd { margin: 3px 0 0; color: var(--muted); font-size: 12px; line-height: 1.55; }

.extension-section { padding-top: clamp(64px, 7vw, 92px); padding-bottom: clamp(64px, 7vw, 92px); }
.extension-list { border-top: 1px solid var(--line); }
.extension-item { display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 20px; align-items: center; padding: 24px 4px; border-bottom: 1px solid var(--line); }
.extension-item > span { color: #9aa8bc; font-size: 13px; font-weight: 850; }
.extension-item h3 { margin: 0 0 5px; font-size: 20px; }
.extension-item p { margin: 0; color: var(--muted); font-size: 13px; }

.demo-overview { max-width: 980px; padding: 30px 34px; border-left: 3px solid var(--blue); border-radius: 0 18px 18px 0; background: rgba(255,255,255,.78); }
.demo-overview p { margin-bottom: 14px; color: var(--muted); font-size: 15px; line-height: 1.9; }
.demo-overview strong { color: var(--ink); font-size: 14px; }

.demo-feature { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(390px, .92fr); overflow: hidden; border: 1px solid var(--line); border-radius: 26px; background: #fff; box-shadow: var(--shadow); }
.demo-feature-media { position: relative; min-height: 540px; display: flex; flex-direction: column; justify-content: space-between; padding: 28px; color: #fff; background: #14233c center/cover; }
.demo-feature-media::before { position: absolute; inset: 0; content: ""; background: linear-gradient(180deg, rgba(8,20,40,.12), rgba(8,20,40,.78)); }
.demo-feature-media > * { position: relative; z-index: 1; }
.demo-feature-media span { align-self: flex-start; padding: 7px 10px; border: 1px solid rgba(255,255,255,.35); border-radius: 999px; background: rgba(8,20,40,.35); font-size: 11px; font-weight: 780; backdrop-filter: blur(8px); }
.demo-feature-media strong { font-size: clamp(46px, 6vw, 82px); line-height: 1; letter-spacing: -.04em; }
.demo-feature-copy { align-self: center; padding: clamp(36px, 5vw, 68px); }
.demo-status { display: inline-flex; margin-bottom: 14px; padding: 6px 9px; border-radius: 999px; color: var(--blue-deep); background: #eaf1ff; font-size: 11px; font-weight: 820; }
.demo-feature-copy h2 { margin-bottom: 24px; font-size: clamp(32px, 3.2vw, 46px); }
.demo-feature-copy > p { color: var(--muted); font-size: 14px; line-height: 1.82; }
.demo-proof { margin-top: 26px; padding: 19px 20px; border-left: 3px solid var(--blue); background: #f4f7fc; }
.demo-proof span { display: block; margin-bottom: 5px; color: var(--blue); font-size: 10px; font-weight: 850; letter-spacing: .08em; }
.demo-proof strong { color: var(--ink); font-size: 14px; line-height: 1.65; }

.demo-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.demo-card { min-height: 300px; padding: 28px; border: 1px solid var(--line); border-radius: 18px; background: rgba(255,255,255,.88); box-shadow: var(--shadow-soft); }
.demo-card-head { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 30px; }
.demo-card-head span { color: var(--blue); font-size: 12px; font-weight: 900; letter-spacing: .06em; }
.demo-card-head em { color: #8a98ad; font-size: 10px; font-style: normal; }
.demo-card h3 { max-width: 540px; font-size: 21px; }
.demo-card p { color: var(--muted); font-size: 13px; line-height: 1.75; }
.demo-card > strong { display: block; margin-top: 22px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--ink); font-size: 13px; line-height: 1.65; }

.best-practice-section { padding-top: clamp(64px, 7vw, 90px); padding-bottom: clamp(64px, 7vw, 90px); }
.best-practice-placeholder { display: grid; grid-template-columns: minmax(260px, .55fr) minmax(0, 1.25fr) auto; gap: 42px; align-items: center; padding: 34px; border: 1px dashed #b8c7dc; border-radius: 20px; background: rgba(255,255,255,.58); }
.best-practice-placeholder h2 { font-size: clamp(28px, 3vw, 42px); }
.best-practice-placeholder p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.82; }
.best-practice-placeholder > span { padding: 7px 10px; border-radius: 999px; color: var(--blue-deep); background: #eaf1ff; font-size: 11px; font-weight: 820; white-space: nowrap; }

.demo-simple-hero { position: relative; overflow: hidden; padding: clamp(92px, 11vw, 150px) 0 clamp(72px, 9vw, 116px); text-align: center; background: linear-gradient(180deg, #a9d5ff 0%, #d8ecff 48%, rgba(255,255,255,.96) 100%); }
.demo-simple-hero .wrap { position: relative; }
.demo-simple-hero .kicker { position: relative; z-index: 1; margin-bottom: 18px; }
.demo-simple-hero h1 { position: relative; z-index: 1; margin: 0; font-size: clamp(46px, 6vw, 82px); }
.demo-watermark { position: absolute; top: 50%; left: 50%; color: rgba(255,255,255,.32); font-size: clamp(74px, 13vw, 190px); font-weight: 900; line-height: .8; letter-spacing: -.06em; white-space: nowrap; transform: translate(-50%, -56%); user-select: none; }

.demo-list-section { padding: 26px 0 clamp(78px, 9vw, 126px); background: rgba(255,255,255,.94); }
.demo-list { display: grid; }
.demo-list-item { display: grid; grid-template-columns: minmax(260px, 340px) minmax(0, 1fr); gap: clamp(30px, 4vw, 58px); align-items: center; padding: 38px 0; border-bottom: 1px solid var(--line); }
.demo-list-item:last-child { border-bottom: 0; }
.demo-list-media { position: relative; overflow: hidden; aspect-ratio: 16 / 9; display: flex; flex-direction: column; justify-content: space-between; padding: 20px; border: 1px solid #d4dfef; border-radius: 12px; color: var(--blue-deep); background: linear-gradient(135deg, #edf4ff, #dcecff 58%, #dff7fa); }
.demo-list-media::before { position: absolute; right: 16px; bottom: -22px; content: attr(data-number); color: rgba(31,94,255,.08); font-size: 110px; font-weight: 900; line-height: 1; }
.demo-list-media span, .demo-list-media small { position: relative; z-index: 1; }
.demo-list-media span { font-size: 20px; font-weight: 900; }
.demo-list-media small { align-self: flex-start; padding: 5px 8px; border-radius: 999px; color: var(--blue-deep); background: rgba(255,255,255,.78); font-size: 10px; font-weight: 760; }
.demo-list-image { color: #fff; background: #17243b center/cover; }
.demo-list-image::after { position: absolute; inset: 0; content: ""; background: linear-gradient(180deg, rgba(8,20,40,.10), rgba(8,20,40,.68)); }
.demo-list-image span, .demo-list-image small { z-index: 2; }
.demo-list-image small { color: #fff; background: rgba(8,20,40,.42); }
.demo-list-copy h2 { margin-bottom: 13px; font-size: clamp(20px, 2vw, 27px); letter-spacing: -.01em; }
.demo-list-copy p { max-width: 900px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.82; }
.demo-list-copy p strong { color: var(--ink); font-weight: 780; }
.demo-update-note { display: block; margin: 26px 0 0; padding: 0; border: 0; border-radius: 0; color: #7d8da3; background: transparent; font-size: 13px; font-weight: 680; letter-spacing: .06em; line-height: 1.6; text-align: center; }
.demo-list-video { padding: 0; background: #081426; }
.demo-list-video::before { display: none; }
.demo-list-video video { display: block; width: 100%; height: 100%; object-fit: cover; }
.demo-page .demo-list-video { box-shadow: 0 16px 34px rgba(20,43,75,.14); }
.demo-page .demo-list-video video { aspect-ratio: 16 / 9; }

/* 功能实录：大幅精选实录建立页面焦点，下方进入完整验证列表 */
.demo-identity-hero { position: relative; overflow: hidden; padding: clamp(68px, 7.5vw, 104px) 0 clamp(78px, 8vw, 112px); border-bottom: 1px solid rgba(196,211,232,.82); background: linear-gradient(135deg, #f5f8ff 0%, #edf5ff 58%, #e5f7f8 100%); }
.demo-identity-hero::before { position: absolute; inset: 0; content: ""; background-image: linear-gradient(rgba(31,94,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(31,94,255,.045) 1px, transparent 1px); background-size: 52px 52px; mask-image: linear-gradient(90deg, #000, transparent 78%); }
.demo-identity-grid { position: relative; display: grid; grid-template-columns: minmax(350px, .72fr) minmax(620px, 1.28fr); gap: clamp(52px, 6.5vw, 104px); align-items: center; }
.demo-identity-copy { position: relative; z-index: 2; }
.demo-identity-hero h1 { margin-bottom: 22px; font-size: clamp(58px, 6vw, 86px); }
.demo-identity-hero p { max-width: 520px; margin: 0; color: var(--muted); font-size: 17px; line-height: 1.9; }
.demo-hero-meta { display: flex; align-items: center; gap: 26px; margin-top: 34px; padding-top: 20px; border-top: 1px solid rgba(183,199,222,.75); color: var(--muted); font-size: 13px; font-weight: 760; }
.demo-hero-meta a { color: var(--blue); transition: transform .2s ease; }
.demo-hero-meta a:hover { transform: translateY(2px); }
.demo-featured-visual { position: relative; overflow: hidden; min-height: 470px; border: 1px solid rgba(194,210,231,.90); border-radius: 28px; background: #15243b; box-shadow: 0 30px 72px rgba(24,51,91,.20); }
.demo-featured-visual::after { position: absolute; inset: 0; content: ""; background: linear-gradient(180deg, rgba(5,15,30,.04) 32%, rgba(5,15,30,.82) 100%); }
.demo-featured-visual img { width: 100%; height: 100%; min-height: 470px; object-fit: cover; transition: transform .55s ease; }
.demo-featured-visual:hover img { transform: scale(1.018); }
.demo-featured-label { position: absolute; top: 26px; left: 28px; z-index: 2; color: #fff; font-size: 11px; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; text-shadow: 0 2px 12px rgba(0,0,0,.36); }
.demo-featured-caption { position: absolute; right: 30px; bottom: 28px; left: 30px; z-index: 2; display: grid; gap: 5px; color: #fff; }
.demo-featured-caption small { color: rgba(255,255,255,.70); font-size: 11px; font-weight: 750; letter-spacing: .08em; }
.demo-featured-caption strong { font-size: clamp(26px, 2.6vw, 38px); line-height: 1.18; }
.demo-featured-caption span { color: rgba(255,255,255,.78); font-size: 13px; }

.demo-list-section { padding-top: 54px; background: #f6f8fc; }
.demo-list { gap: 14px; }
.demo-list-item { grid-template-columns: 74px minmax(0, 1fr) minmax(260px, 330px); gap: 30px; min-height: 250px; padding: 26px; border: 1px solid rgba(211,222,238,.92); border-radius: 18px; background: rgba(255,255,255,.92); box-shadow: 0 12px 30px rgba(31,49,82,.055); transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease; }
.demo-list-item:last-child { border-bottom: 1px solid rgba(211,222,238,.92); }
.demo-list-item:hover { border-color: #bfd0e8; transform: translateY(-2px); box-shadow: 0 18px 42px rgba(31,49,82,.09); }
.demo-list-index { position: relative; align-self: stretch; display: flex; flex-direction: column; align-items: flex-start; padding-left: 16px; border-left: 3px solid #d8e5fa; }
.demo-list-index span { color: var(--blue); font-size: 34px; font-weight: 900; line-height: 1; }
.demo-list-index small { margin-top: 8px; color: #94a3b8; font-size: 9px; font-weight: 800; letter-spacing: .12em; }
.demo-list-copy { align-self: center; }
.demo-list-copy h2 { font-size: clamp(21px, 2vw, 28px); }
.demo-list-media { align-self: center; width: 100%; }

.foundation-layout { display: grid; grid-template-columns: minmax(300px, .72fr) minmax(620px, 1.28fr); gap: clamp(44px, 6vw, 96px); align-items: center; }
.foundation-copy { align-self: center; }
.foundation-copy h2 { max-width: 560px; font-size: clamp(40px, 3.7vw, 56px); white-space: nowrap; }
.foundation-lead { max-width: 500px; margin: 24px 0 34px; color: var(--muted); font-size: 17px; line-height: 1.85; }
.foundation-roles { display: grid; gap: 12px; }
.foundation-roles > div { padding: 16px 18px; border-left: 3px solid var(--line); background: rgba(255,255,255,.52); }
.foundation-roles > div:last-child { border-left-color: var(--blue); }
.foundation-roles span { display: block; margin-bottom: 3px; color: var(--muted); font-size: 11px; font-weight: 760; }
.foundation-roles strong { color: var(--ink); font-size: 14px; }

.foundation-stack { position: relative; padding: 22px; border: 1px solid rgba(207,221,240,.96); border-radius: 26px; background: rgba(255,255,255,.68); box-shadow: var(--shadow); }
.foundation-os { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 20px 24px; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.foundation-os div { display: flex; align-items: baseline; gap: 12px; }
.foundation-os span, .foundation-core-head span { color: var(--muted); font-size: 11px; font-weight: 760; }
.foundation-os strong { color: var(--ink); font-size: 22px; }
.foundation-os p { max-width: 260px; margin: 0; color: var(--muted); font-size: 12px; text-align: right; }
.foundation-bridge { position: relative; height: 42px; display: grid; place-items: center; }
.foundation-bridge::before { content: ""; position: absolute; top: 0; bottom: 0; left: 50%; width: 1px; background: linear-gradient(var(--line), var(--blue)); }
.foundation-bridge span { position: relative; z-index: 1; padding: 3px 9px; border: 1px solid #d5e0f3; border-radius: 999px; color: var(--blue-deep); background: #f5f8fe; font-size: 10px; font-weight: 760; }
.foundation-core { padding: 24px; border-radius: 20px; color: #fff; background: linear-gradient(135deg, #1557df 0%, #167db9 100%); box-shadow: 0 18px 40px rgba(24,86,190,.22); }
.foundation-core-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 20px; }
.foundation-core-head > div { display: grid; gap: 2px; }
.foundation-core-head span { color: rgba(255,255,255,.68); }
.foundation-core-head strong { font-size: 29px; line-height: 1.15; }
.foundation-core-head em { color: rgba(255,255,255,.76); font-size: 11px; font-style: normal; }
.foundation-capabilities { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.foundation-capabilities article { min-height: 162px; padding: 16px; border: 1px solid rgba(255,255,255,.18); border-radius: 13px; background: rgba(255,255,255,.10); }
.foundation-capabilities b { display: block; margin-bottom: 20px; color: rgba(255,255,255,.58); font-size: 11px; }
.foundation-capabilities h3 { margin-bottom: 8px; color: #fff; font-size: 17px; }
.foundation-capabilities p { margin: 0; color: rgba(255,255,255,.78); font-size: 11px; line-height: 1.7; }
.foundation-inputs { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-top: 14px; padding: 12px 14px; border-radius: 12px; background: #eef3fb; }
.foundation-inputs > span { flex: 0 0 auto; color: var(--muted); font-size: 11px; font-weight: 760; }
.foundation-inputs > div { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px; }
.foundation-inputs i { padding: 4px 8px; border: 1px solid #d7e1ef; border-radius: 999px; color: var(--text); background: rgba(255,255,255,.78); font-size: 10px; font-style: normal; }

.architecture { padding: clamp(18px, 2.4vw, 32px); border: 1px solid rgba(207,221,240,.98); border-radius: 26px; background: rgba(255,255,255,.76); box-shadow: var(--shadow); }
.architecture-resources { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.resource-lane { min-width: 0; padding: 20px; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.resource-lane-head { display: flex; align-items: center; gap: 13px; margin-bottom: 18px; }
.resource-lane-head > span { display: grid; flex: 0 0 34px; width: 34px; height: 34px; place-items: center; border-radius: 10px; color: var(--blue); background: #eaf1ff; font-size: 11px; font-weight: 900; }
.resource-lane-head > div { display: grid; gap: 1px; }
.resource-lane-head strong { color: var(--ink); font-size: 16px; }
.resource-lane-head small { color: var(--muted); font-size: 11px; }
.resource-tags { display: flex; flex-wrap: wrap; gap: 7px; }
.resource-tags i { padding: 6px 9px; border: 1px solid #dbe4f1; border-radius: 999px; color: var(--text); background: var(--paper-soft); font-size: 11px; font-style: normal; font-weight: 700; }
.architecture-link { position: relative; height: 42px; display: grid; place-items: center; }
.architecture-link::before { content: ""; position: absolute; top: 0; bottom: 0; left: 50%; width: 1px; background: linear-gradient(var(--line), var(--blue)); }
.architecture-link span { position: relative; z-index: 1; padding: 4px 10px; border: 1px solid #d5e0f3; border-radius: 999px; color: var(--blue-deep); background: #f6f9fe; font-size: 10px; font-weight: 800; }
.architecture-link.downward::before { background: linear-gradient(var(--blue), var(--line)); }
.architecture-platform { padding: 24px; border-radius: 20px; color: #fff; background: linear-gradient(135deg, #132f6c 0%, #175eae 100%); box-shadow: 0 18px 42px rgba(18,58,143,.19); }
.architecture-platform-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 22px; }
.architecture-platform-head > div { display: grid; gap: 2px; }
.architecture-platform-head span { color: rgba(255,255,255,.65); font-size: 11px; font-weight: 760; }
.architecture-platform-head strong { font-size: 28px; line-height: 1.2; }
.architecture-platform-head p { max-width: 360px; margin: 0; color: rgba(255,255,255,.72); font-size: 12px; text-align: right; }
.architecture-modules { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.architecture-modules > div { display: grid; gap: 6px; min-height: 112px; padding: 15px; border: 1px solid rgba(255,255,255,.14); border-radius: 12px; background: rgba(255,255,255,.07); }
.architecture-modules b { margin-bottom: 3px; color: #fff; font-size: 13px; }
.architecture-modules span { color: rgba(255,255,255,.72); font-size: 11px; }
.architecture-scenes { display: grid; grid-template-columns: 110px 1fr; gap: 18px; align-items: center; padding: 16px 18px; border: 1px solid var(--line); border-radius: 15px; background: #fff; }
.architecture-scenes > span { color: var(--muted); font-size: 11px; font-weight: 800; }
.architecture-scenes > div { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.architecture-scenes strong { padding: 9px 12px; border-radius: 9px; color: var(--blue-deep); background: #edf3fd; font-size: 12px; text-align: center; }

.result-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.result-card { position: relative; overflow: hidden; min-height: 330px; padding: 28px; display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: 20px; background: rgba(255,255,255,.94); box-shadow: var(--shadow-soft); transition: opacity .68s ease, transform .68s cubic-bezier(.22,.72,.22,1), border-color .28s ease, box-shadow .28s ease; }
.result-card::before { position: absolute; inset: 0 0 auto; height: 3px; background: linear-gradient(90deg, #2868ed, #28a6bc); content: ""; transform: scaleX(.22); transform-origin: left; transition: transform .7s cubic-bezier(.22,.72,.22,1); }
.result-card:nth-child(2)::before { background: linear-gradient(90deg, #6d63d9, #26a68e); }
.result-card:nth-child(2).reveal { transition-delay: .1s; }
.result-card.reveal.in::before { transform: scaleX(1); }
.result-card.in:hover { transform: translateY(-5px); border-color: rgba(53,105,220,.28); box-shadow: 0 24px 54px rgba(41,72,128,.14); }
.result-card:nth-child(2).in:hover { transition-delay: 0s; }
.result-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 34px; }
.result-type { color: var(--blue); font-size: 12px; font-weight: 850; letter-spacing: .06em; }
.status { padding: 6px 9px; border-radius: 999px; color: #0c7a55; background: rgba(15,159,110,.10); font-size: 11px; font-weight: 820; }
.result-card h3 { font-size: 24px; }
.result-card p { color: var(--muted); font-size: 14px; }
.result-use { margin-top: auto; padding-top: 20px; border-top: 1px solid var(--line); color: var(--ink); font-size: 13px; font-weight: 750; }

.pub-panel { padding: clamp(20px, 2.4vw, 32px); border: 1px solid var(--line); border-radius: 22px; background: linear-gradient(180deg, #fff 0%, #f7faff 100%); box-shadow: var(--shadow-soft); }
.pub-panel-head { display: flex; align-items: baseline; justify-content: space-between; gap: 18px; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.pub-panel-label { color: var(--blue); font-size: 11px; font-weight: 850; letter-spacing: .12em; text-transform: uppercase; }
.pub-panel-count { color: var(--muted); font-size: 12px; font-weight: 700; }
.pub-panel-count strong { margin-right: 3px; color: var(--blue-deep); font-size: 16px; font-weight: 850; }

.pub-list { display: grid; margin: 0; padding: 0; list-style: none; }
.pub-item { position: relative; display: grid; grid-template-columns: 82px minmax(0, 1fr) auto; gap: clamp(16px, 1.9vw, 28px); align-items: start; margin: 0 -8px; padding: 24px 16px; border-radius: 15px; transition: background-color .28s ease; }
.pub-item + .pub-item::before { position: absolute; top: 0; right: 16px; left: 16px; height: 1px; background: rgba(216,226,240,.95); content: ""; }
.pub-item:hover { background: rgba(31,94,255,.045); }
.pub-meta { display: grid; gap: 3px; }
.pub-meta b { color: var(--ink); font-size: 21px; font-weight: 850; line-height: 1.1; letter-spacing: -.02em; transition: color .28s ease; }
.pub-meta em { color: var(--muted); font-size: 10.5px; font-style: normal; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.pub-item:hover .pub-meta b { color: var(--blue); }
.pub-body { min-width: 0; }
.pub-title { margin: 0 0 10px; color: var(--ink); font-size: 16.5px; font-weight: 780; line-height: 1.55; letter-spacing: -.01em; }
.pub-authors { margin: 0 0 7px; color: var(--muted); font-size: 12.5px; line-height: 1.7; }
.pub-authors b { color: var(--blue-deep); font-weight: 820; }
.pub-venue { margin: 0; color: #7d8ba1; font-size: 12px; line-height: 1.6; }
.pub-keywords { display: flex; flex: 0 0 auto; flex-direction: column; align-items: flex-end; gap: 6px; }
.pub-keywords span { padding: 4px 10px; border-radius: 8px; background: rgba(31,94,255,.07); color: var(--blue-deep); font-size: 11px; font-weight: 780; letter-spacing: .02em; white-space: nowrap; }

.mechanism-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.mechanism-card { overflow: hidden; border: 1px solid var(--line); border-radius: 22px; background: #fff; box-shadow: var(--shadow-soft); }
.mechanism-visual { min-height: 190px; margin: 10px 10px 0; border-radius: 15px; background: linear-gradient(145deg, #edf4ff, #e8f7fa); }
.mechanism-copy { padding: 25px 27px 29px; }
.mechanism-copy > span { color: var(--blue); font-size: 10px; font-weight: 900; letter-spacing: .12em; }
.mechanism-copy h3 { margin: 12px 0 11px; font-size: 23px; }
.mechanism-copy p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.state-visual { display: grid; grid-template-columns: 1fr 44px 1.12fr; align-items: center; padding: 22px; }
.state-sources { display: grid; gap: 8px; }
.state-sources span { padding: 7px 9px; border: 1px solid rgba(31,94,255,.12); border-radius: 8px; color: var(--blue-deep); background: rgba(255,255,255,.74); font-size: 10px; font-weight: 750; text-align: center; }
.state-line { position: relative; height: 1px; background: rgba(31,94,255,.34); }
.state-line::after { content: ""; position: absolute; right: -1px; top: -3px; width: 7px; height: 7px; border-top: 1px solid var(--blue); border-right: 1px solid var(--blue); transform: rotate(45deg); }
.state-visual strong { display: grid; min-height: 90px; place-items: center; padding: 14px; border-radius: 14px; color: #fff; background: linear-gradient(145deg, var(--blue), #167db9); font-size: 14px; line-height: 1.55; text-align: center; box-shadow: 0 12px 26px rgba(31,94,255,.18); }
.orchestration-visual { display: grid; grid-template-columns: 1fr 28px 1.16fr 28px 1fr; align-items: center; padding: 22px; }
.orchestration-visual span, .orchestration-visual strong { display: grid; min-height: 72px; place-items: center; padding: 10px; border-radius: 12px; font-size: 11px; text-align: center; }
.orchestration-visual span { color: var(--blue-deep); background: rgba(255,255,255,.78); }
.orchestration-visual strong { color: #fff; background: var(--blue-deep); }
.orchestration-visual i, .governance-visual > i { height: 1px; background: rgba(31,94,255,.34); }
.governance-visual { display: grid; grid-template-columns: 1fr 20px 1fr 20px 1fr; align-items: center; padding: 22px; }
.governance-visual > div { display: grid; min-height: 98px; align-content: center; gap: 9px; padding: 10px; border: 1px solid rgba(31,94,255,.12); border-radius: 13px; background: rgba(255,255,255,.78); text-align: center; }
.governance-visual b { color: var(--blue); font-size: 10px; }
.governance-visual span { color: var(--ink); font-size: 11px; font-weight: 760; }

.result-facts { display: grid; gap: 11px; margin: 20px 0 24px; }
.result-fact { padding: 13px 14px; border-radius: 11px; background: var(--paper-soft); }
.result-fact b { display: block; margin-bottom: 4px; color: var(--blue-deep); font-size: 12px; }
.result-fact span { display: block; color: var(--muted); font-size: 12px; line-height: 1.6; }

.unit-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  align-items: stretch;
}
.unit-side {
  min-height: 300px;
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 12px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(255,255,255,.98), rgba(244,248,254,.94));
  box-shadow: var(--shadow-soft);
}
.unit-group-title { display: flex; align-items: center; }
.unit-group-title span { color: var(--blue); font-size: 12px; font-weight: 850; letter-spacing: .1em; }
.unit-co-build-list { display: grid; grid-template-rows: repeat(2, minmax(0, 1fr)); }
.unit-side .unit-card { min-height: 0; grid-template-columns: 86px 1fr; gap: 24px; padding: 18px 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; }
.unit-side .unit-card + .unit-card { border-top: 1px solid rgba(205,217,234,.82); }
.unit-side .unit-mark { border-radius: 18px; box-shadow: 0 8px 22px rgba(31,94,255,.07); }
.unit-side .unit-card h3 { margin-top: 0; }
.unit-card {
  min-height: 138px;
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 18px;
  align-items: center;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: #fff;
  box-shadow: var(--shadow-soft);
}
.unit-main {
  position: relative;
  min-height: 300px;
  padding: 28px;
  grid-template-columns: 118px 1fr;
  background: linear-gradient(135deg, rgba(255,255,255,.96), rgba(234,246,255,.90));
}
.unit-main-label { position: absolute; top: 28px; left: 28px; color: var(--blue); font-size: 12px; font-weight: 850; letter-spacing: .1em; }
.unit-mark {
  width: 100%;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border: 1px solid rgba(196,211,232,.86);
  border-radius: 24px;
  background: rgba(255,255,255,.92);
  box-shadow: 0 18px 40px rgba(31,94,255,.12);
}
.unit-main .unit-mark { border-radius: 30px; }
.unit-logo { width: 78%; height: 78%; object-fit: contain; }
.unit-main .unit-logo { width: 82%; height: 82%; }
.unit-role { display: inline-flex; padding: 7px 10px; border-radius: 999px; color: var(--blue-deep); background: #eaf1ff; font-size: 12px; font-weight: 840; }
.unit-card h3 { margin: 12px 0 0; font-size: 22px; }
.unit-main h3 { margin-top: 0; font-size: clamp(28px, 3vw, 38px); }
.unit-school { display: block; margin-top: 8px; color: var(--muted); font-size: 14px; font-weight: 620; }

.resource-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.resource { min-height: 230px; padding: 26px; display: flex; flex-direction: column; border: 1px dashed #bdcbe0; border-radius: 18px; background: rgba(255,255,255,.66); }
.resource span { color: var(--blue); font-size: 12px; font-weight: 850; }
.resource h3 { margin-top: 24px; }
.resource p { color: var(--muted); font-size: 13px; }
.resource small { margin-top: auto; color: #8a98ad; font-weight: 750; }

.next-step { padding: 0 0 96px; }
.next-card { display: grid; grid-template-columns: 1fr auto; gap: 32px; align-items: center; padding: clamp(30px, 5vw, 58px); border-radius: 24px; color: #fff; background: linear-gradient(125deg, #123a8f, #176aaf 64%, #14a6c4); box-shadow: var(--shadow); }
.next-card h2 { color: #fff; font-size: clamp(28px, 3.2vw, 44px); }
.next-card p { margin-bottom: 0; color: #d8e8fa; }
.next-card .hero-actions { justify-content: flex-end; }
.next-card .button { background: #fff; color: var(--blue-deep); box-shadow: none; }
.next-card .button.secondary { border-color: rgba(255,255,255,.28); color: #fff; background: rgba(255,255,255,.10); }

footer { border-top: 1px solid var(--line); background: rgba(255,255,255,.75); }
.footer-inner { min-height: 82px; display: flex; align-items: center; justify-content: space-between; gap: 24px; color: var(--muted); font-size: 12px; }
.footer-inner strong { color: var(--ink); font-size: 16px; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 1080px) {
  .sub-hero-grid, .feature-panel { grid-template-columns: 1fr; }
  .case-overview { grid-template-columns: 1fr; }
  .demo-identity-grid { grid-template-columns: minmax(300px, .78fr) minmax(460px, 1.22fr); gap: 38px; }
  .demo-featured-visual, .demo-featured-visual img { min-height: 400px; }
  .demo-feature { grid-template-columns: 1fr; }
  .demo-feature-media { min-height: 420px; }
  .best-practice-placeholder { grid-template-columns: 1fr; gap: 20px; }
  .demo-identity-grid { grid-template-columns: 1fr; gap: 34px; }
  .demo-path-summary { max-width: 650px; }
  .demo-list-item { grid-template-columns: 66px minmax(0, 1fr) minmax(230px, 290px); gap: 22px; }
  .cognition-scroll-stage { grid-template-columns: minmax(400px, .88fr) minmax(0, 1.12fr); gap: 30px; }
  .cognition-scroll-heading h2 { font-size: 48px; }
  .cognition-scroll-panels { height: min(66vh, 620px); }
  .hero-media { min-height: 420px; }
  .hero-media img { min-height: 420px; }
  .challenge-grid, .concept-grid, .key-mechanism-grid { grid-template-columns: repeat(2, 1fr); }
  .flow { grid-template-columns: repeat(3, 1fr); }
  .flow-step:nth-child(3)::after { display: none; }
  .scene-grid, .record-grid, .result-grid, .resource-grid, .mechanism-grid { grid-template-columns: repeat(2, 1fr); }
  .foundation-layout { grid-template-columns: 1fr; }
}

@media (max-width: 980px) {
  .demo-page .links, .research-page .links, .about-page .links { gap: 20px; font-size: 13px; }
  .demo-page .nav-primary, .research-page .nav-primary, .about-page .nav-primary { margin-left: 18px; gap: 16px; }
  .demo-page .nav-secondary, .research-page .nav-secondary, .about-page .nav-secondary { margin-left: auto; gap: 16px; }
}

@media (max-width: 720px) {
  .nav { min-height: 66px; gap: 16px; }
  .nav-brand { font-size: 17px; }
  .nav-links { gap: 12px; font-size: 12px; }
  .nav-links > a.active { display: none; }
  .nav-action { padding: 8px 11px; }
  .demo-page main, .research-page main, .about-page main { padding-top: 64px; }
  .demo-page .nav, .research-page .nav, .about-page .nav { min-height: 64px; justify-content: space-between; }
  .demo-page .nav-brand-text, .research-page .nav-brand-text, .about-page .nav-brand-text { font-size: 16px; }
  .demo-page .nav-primary, .research-page .nav-primary, .about-page .nav-primary { display: none; }
  .demo-page .links, .research-page .links, .about-page .links { width: auto; margin-left: auto; justify-content: flex-end; gap: 10px; font-size: 12px; }
  .demo-page .nav-secondary a:not(.nav-action), .research-page .nav-secondary a:not(.nav-action), .about-page .nav-secondary a:not(.nav-action) { display: none; }
  .demo-page .nav-action, .research-page .nav-action, .about-page .nav-action { padding: 0; }
  .nav-dropdown-menu { right: -12px; width: 184px; }
  .sub-hero { padding-top: 52px; }
  .cognition-scroll { height: auto; padding: 72px 0; }
  .cognition-scroll-stage { position: relative; top: auto; height: auto; min-height: auto; grid-template-columns: 1fr; gap: 34px; }
  .cognition-scroll-heading h2 { margin-bottom: 0; font-size: 40px; }
  .cognition-scroll-heading h2 span { white-space: normal; }
  .cognition-scroll-progress { display: none; }
  .cognition-scroll-panels { height: auto; }
  .cognition-scroll-panel { position: relative; inset: auto; visibility: visible; margin-bottom: 46px; opacity: 1; transform: none; }
  .cognition-scroll-panel:last-child { margin-bottom: 0; }
  .cognition-scroll-panel figure { margin-bottom: 20px; border-radius: 14px; }
  .sub-hero-grid { gap: 34px; }
  .hero-media, .hero-media img { min-height: 330px; }
  .local-nav { top: 66px; }
  .section-head { align-items: start; flex-direction: column; gap: 16px; }
  .challenge-grid, .concept-grid, .scene-grid, .record-grid, .result-grid, .resource-grid, .mechanism-grid, .key-mechanism-grid, .unit-layout, .unit-card { grid-template-columns: 1fr; }
  .challenge-item { grid-template-columns: 40px 1fr; gap: 10px 12px; }
  .challenge-item p { grid-column: 2; }
  .concept-summary { grid-template-columns: 1fr; gap: 8px; }
  .architecture-loop { align-items: flex-start; flex-direction: column; }
  .unit-main { min-height: auto; }
  .unit-mark { max-width: 132px; }
  .flow { grid-template-columns: repeat(2, 1fr); }
  .flow-step:nth-child(3)::after { display: block; }
  .flow-step:nth-child(2n)::after { display: none; }
  .case-subhead { align-items: flex-start; flex-direction: column; gap: 12px; }
  .case-flow { grid-template-columns: 1fr; }
  .case-flow .flow-step { min-height: auto; }
  .case-flow .flow-step::after { display: none !important; }
  .case-materials { grid-template-columns: 1fr; }
  .demo-overview { padding: 24px; }
  .demo-feature-media { min-height: 330px; }
  .demo-feature-copy { padding: 28px 24px; }
  .demo-grid { grid-template-columns: 1fr; }
  .demo-card { min-height: auto; padding: 24px; }
  .demo-simple-hero { padding: 76px 0 66px; }
  .demo-watermark { font-size: 70px; }
  .demo-list-item { grid-template-columns: 1fr; gap: 20px; padding: 30px 0; }
  .demo-list-media { width: 100%; }
  .demo-identity-hero { padding: 64px 0 74px; }
  .demo-identity-grid { grid-template-columns: 1fr; gap: 38px; }
  .demo-identity-hero p { font-size: 15px; }
  .demo-featured-visual, .demo-featured-visual img { min-height: 330px; }
  .demo-featured-caption { right: 22px; bottom: 22px; left: 22px; }
  .demo-list-item { padding: 22px; }
  .demo-list-index { align-self: auto; flex-direction: row; align-items: baseline; gap: 8px; padding: 0 0 12px; border-bottom: 2px solid #d8e5fa; border-left: 0; }
  .demo-list-index small { margin-top: 0; }
  .feature-panel-media { min-height: 330px; }
  .foundation-stack { padding: 14px; }
  .foundation-copy h2 { white-space: normal; }
  .foundation-os, .foundation-core-head, .foundation-inputs { align-items: flex-start; flex-direction: column; }
  .foundation-os p { text-align: left; }
  .foundation-capabilities { grid-template-columns: 1fr; }
  .foundation-capabilities article { min-height: auto; }
  .foundation-inputs > div { justify-content: flex-start; }
  .architecture-resources, .architecture-modules { grid-template-columns: 1fr; }
  .architecture-platform-head { align-items: flex-start; flex-direction: column; }
  .architecture-platform-head p { text-align: left; }
  .architecture-scenes { grid-template-columns: 1fr; }
  .architecture-scenes > div { grid-template-columns: repeat(2, 1fr); }
  .next-card, .footer-inner { align-items: start; grid-template-columns: 1fr; flex-direction: column; }
  .next-card .hero-actions { justify-content: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .result-card, .result-card::before { transition: none; }
  .result-card.in:hover { transform: none; }
  .pub-item, .pub-item:hover, .pub-meta b { transition: none; }
  .team-member, .team-member:hover { transition: none; transform: none; }
  .cognition-scroll-panel { transition: none; }
}

/* 功能实录列表保持M4式的简洁阅读方式：左侧封面，右侧说明 */
.demo-page .demo-list-section { padding: 30px 0 clamp(78px, 9vw, 126px); background: rgba(255,255,255,.96); }
.demo-page .demo-list { gap: 0; }
.demo-page .demo-list-item {
  grid-template-columns: minmax(270px, 350px) minmax(0, 1fr);
  gap: clamp(34px, 4vw, 60px);
  min-height: 0;
  padding: 38px 0;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  transform: none;
}
.demo-page .demo-list-item:last-child { border-bottom: 0; }
.demo-page .demo-list-item:hover { border-color: var(--line); transform: none; box-shadow: none; }
.demo-page .demo-list-index { display: none; }
.demo-page .demo-list-media { grid-column: 1; grid-row: 1; align-self: center; width: 100%; }
.demo-page .demo-list-image::before { top: 18px; right: auto; bottom: auto; left: 20px; z-index: 2; content: "Demo " attr(data-number); color: #fff; font-size: 20px; text-shadow: 0 2px 12px rgba(0,0,0,.34); }
.demo-page .demo-list-copy { grid-column: 2; grid-row: 1; align-self: center; }
.demo-page .demo-list-copy h2 { margin-bottom: 12px; font-size: clamp(20px, 1.9vw, 26px); }
.demo-page .demo-list-copy p { font-size: 14px; line-height: 1.8; }

@media (max-width: 980px) {
  .demo-page .demo-list-item { grid-template-columns: minmax(230px, 300px) minmax(0, 1fr); gap: 30px; }
}

@media (max-width: 720px) {
  .demo-page .demo-list-item { grid-template-columns: 1fr; gap: 20px; padding: 30px 0; }
  .demo-page .demo-list-media { grid-column: 1; grid-row: 1; }
  .demo-page .demo-list-copy { grid-column: 1; grid-row: 2; }
  .demo-update-note { margin-top: 22px; padding: 0; }
}

/* 功能实录开屏：延续全站蓝色体系，以“任务运行舱”形成独立识别 */
.demo-page .demo-identity-hero {
  padding: clamp(34px, 4.6vw, 68px) 0 clamp(50px, 6vw, 84px);
  background:
    radial-gradient(circle at 82% 22%, rgba(38, 91, 196, .17), transparent 28%),
    linear-gradient(180deg, #040812 0%, #071120 100%);
}

.demo-page .demo-hero-shell {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: minmax(390px, .86fr) minmax(480px, 1.14fr);
  align-items: stretch;
  min-height: min(670px, calc(100vh - 170px));
  overflow: hidden;
  border: 1px solid rgba(86, 135, 245, .72);
  border-radius: 30px;
  color: #f6f9ff;
  background:
    linear-gradient(100deg, rgba(7, 15, 29, .98) 0%, rgba(8, 18, 36, .96) 47%, rgba(8, 24, 54, .86) 100%);
  box-shadow:
    inset 0 0 0 1px rgba(118, 160, 255, .08),
    inset 0 0 64px rgba(55, 103, 210, .08),
    0 34px 90px rgba(0, 5, 16, .42);
}

.demo-page .demo-hero-shell::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  content: "";
  opacity: .38;
  background-image:
    linear-gradient(rgba(116, 154, 230, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(116, 154, 230, .055) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, #000, rgba(0,0,0,.22) 72%, transparent);
}

.demo-page .demo-hero-shell .demo-identity-copy {
  position: relative;
  z-index: 2;
  align-self: center;
  padding: clamp(44px, 6vw, 84px) 24px clamp(42px, 5vw, 68px) clamp(42px, 6vw, 82px);
}

.demo-page .demo-hero-shell .kicker {
  margin-bottom: 22px;
  color: #7aa7ff;
  font-size: 12px;
  letter-spacing: .18em;
}

.demo-page .demo-hero-shell h1 {
  max-width: 650px;
  margin: 0;
  color: #f8fbff;
  font-size: clamp(52px, 5.7vw, 82px);
  line-height: .98;
  letter-spacing: -.045em;
}

.demo-page .demo-hero-shell h1 span { color: #69a0ff; }

.demo-page .demo-hero-shell p {
  max-width: 520px;
  margin: 28px 0 0;
  color: #aab8cf;
  font-size: clamp(15px, 1.35vw, 18px);
  line-height: 1.85;
}

.demo-hero-action {
  display: inline-flex;
  align-items: center;
  gap: 24px;
  margin-top: 34px;
  padding: 13px 18px;
  border: 1px solid rgba(113, 158, 255, .55);
  border-radius: 9px;
  color: #f5f8ff;
  background: linear-gradient(110deg, rgba(51, 105, 225, .76), rgba(76, 130, 246, .34));
  box-shadow: inset 0 0 22px rgba(111, 161, 255, .16), 0 10px 30px rgba(0, 31, 94, .2);
  font-size: 14px;
  font-weight: 760;
  transition: border-color .25s ease, transform .25s ease, background .25s ease;
}

.demo-hero-action:hover {
  border-color: rgba(148, 183, 255, .92);
  background: linear-gradient(110deg, rgba(65, 123, 245, .9), rgba(83, 144, 255, .46));
  transform: translateY(-2px);
}

.demo-hero-action span { color: #9fc0ff; font-size: 16px; }

.demo-hero-stats {
  display: flex;
  gap: clamp(24px, 3.3vw, 52px);
  margin-top: clamp(58px, 7vw, 92px);
}

.demo-hero-stats div { min-width: 104px; }
.demo-hero-stats strong { display: block; color: #78a7ff; font-size: 28px; line-height: 1; font-weight: 720; }
.demo-hero-stats span { display: block; margin-top: 9px; color: #7f8da5; font-size: 12px; }

.demo-signal-art {
  position: relative;
  z-index: 1;
  min-width: 0;
  overflow: hidden;
  border-left: 1px solid rgba(115, 155, 232, .08);
  background-image:
    linear-gradient(90deg, #081224 0%, rgba(8, 20, 42, .58) 32%, rgba(12, 35, 78, .48) 100%),
    linear-gradient(0deg, rgba(5, 11, 23, .92), rgba(5, 11, 23, .12) 66%, rgba(5, 11, 23, .74)),
    url('assets/media/features/project-simulation.jpg');
  background-position: center;
  background-size: cover;
}

.demo-signal-art::after {
  position: absolute;
  inset: 0;
  content: "";
  background: radial-gradient(ellipse at 68% 46%, rgba(88, 141, 255, .22), transparent 46%);
}

.demo-signal-beams { position: absolute; inset: 9% 0 18% 13%; z-index: 1; }
.demo-signal-beams i {
  position: absolute;
  top: 5%;
  bottom: 5%;
  width: clamp(24px, 3.2vw, 52px);
  border-radius: 999px;
  opacity: .54;
  background: linear-gradient(90deg, transparent, rgba(107, 156, 255, .82), transparent);
  filter: blur(7px);
  box-shadow: 0 0 28px rgba(73, 127, 255, .34);
  animation: demo-signal-pulse 5.5s ease-in-out infinite alternate;
}
.demo-signal-beams i:nth-child(1) { right: 7%; height: 92%; }
.demo-signal-beams i:nth-child(2) { right: 18%; top: 17%; bottom: 9%; opacity: .74; animation-delay: -.8s; }
.demo-signal-beams i:nth-child(3) { right: 31%; top: 3%; bottom: 18%; opacity: .48; animation-delay: -1.7s; }
.demo-signal-beams i:nth-child(4) { right: 45%; top: 28%; bottom: 8%; opacity: .3; animation-delay: -2.5s; }
.demo-signal-beams i:nth-child(5) { right: 58%; top: 12%; bottom: 26%; opacity: .18; animation-delay: -3.1s; }

.demo-signal-label {
  position: absolute;
  top: 44px;
  right: 46px;
  z-index: 2;
  color: rgba(199, 216, 250, .56);
  font-size: 10px;
  font-weight: 720;
  letter-spacing: .2em;
}

.demo-signal-path {
  position: absolute;
  right: 34px;
  bottom: 38px;
  left: 34px;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 11px;
  padding: 15px 18px;
  border: 1px solid rgba(125, 165, 240, .22);
  border-radius: 12px;
  background: rgba(5, 12, 25, .66);
  box-shadow: inset 0 0 24px rgba(72, 124, 232, .07);
  backdrop-filter: blur(12px);
}

.demo-signal-path span { color: #dce7fb; font-size: 12px; white-space: nowrap; }
.demo-signal-path b { color: #5689ec; font-size: 12px; font-weight: 500; }

@keyframes demo-signal-pulse {
  from { opacity: .28; transform: translateX(-4px) scaleX(.86); }
  to { opacity: .76; transform: translateX(4px) scaleX(1.08); }
}

@media (max-width: 1080px) {
  .demo-page .demo-hero-shell { grid-template-columns: 1fr; min-height: auto; }
  .demo-page .demo-hero-shell .demo-identity-copy { padding-right: clamp(42px, 6vw, 82px); }
  .demo-signal-art { min-height: 330px; border-top: 1px solid rgba(115, 155, 232, .1); border-left: 0; }
  .demo-hero-stats { margin-top: 54px; }
}

@media (max-width: 720px) {
  .demo-page .demo-identity-hero { padding: 20px 0 46px; }
  .demo-page .demo-hero-shell { width: calc(100% - 28px); border-radius: 20px; }
  .demo-page .demo-hero-shell .demo-identity-copy { padding: 44px 26px 38px; }
  .demo-page .demo-hero-shell h1 { font-size: clamp(46px, 15vw, 62px); }
  .demo-page .demo-hero-shell p { margin-top: 22px; }
  .demo-hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 48px; }
  .demo-hero-stats div { min-width: 0; }
  .demo-hero-stats strong { font-size: 23px; }
  .demo-hero-stats span { font-size: 10px; }
  .demo-signal-art { min-height: 280px; }
  .demo-signal-label { top: 24px; right: 24px; }
  .demo-signal-path { right: 18px; bottom: 20px; left: 18px; flex-wrap: wrap; gap: 7px; padding: 12px; }
  .demo-signal-path span { font-size: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  .demo-signal-beams i { animation: none; }
  .demo-hero-action { transition: none; }
}

/* 开屏浅色版：保留全站主题色，以留白、发光字与竖向磨砂玻璃构成视觉主体 */
.demo-page .demo-identity-hero {
  padding: clamp(30px, 4vw, 56px) 0 clamp(48px, 6vw, 76px);
  background: radial-gradient(circle at 78% 18%, rgba(66, 125, 240, .12), transparent 28%), linear-gradient(180deg, #f8fbff 0%, #eef5fd 100%);
}
.demo-page .demo-hero-shell {
  grid-template-columns: minmax(390px, .9fr) minmax(460px, 1.1fr);
  min-height: min(610px, calc(100vh - 170px));
  border-color: rgba(80, 125, 215, .34);
  color: var(--ink);
  background: linear-gradient(105deg, rgba(255,255,255,.97) 0%, rgba(248,251,255,.95) 48%, rgba(233,242,255,.92) 100%);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.82), 0 28px 70px rgba(50, 91, 156, .13);
}
.demo-page .demo-hero-shell::before {
  opacity: .7;
  background-image: linear-gradient(rgba(71, 117, 203, .045) 1px, transparent 1px), linear-gradient(90deg, rgba(71, 117, 203, .045) 1px, transparent 1px);
  mask-image: linear-gradient(90deg, #000, rgba(0,0,0,.35) 66%, transparent);
}
.demo-page .demo-hero-shell .demo-identity-copy { padding-top: clamp(54px, 7vw, 92px); padding-bottom: clamp(54px, 7vw, 92px); }
.demo-page .demo-hero-shell .kicker { color: #3974e6; }
.demo-page .demo-hero-shell h1 { color: #142036; font-size: clamp(50px, 5.3vw, 76px); }
.demo-page .demo-hero-shell h1 span { color: #2e6de5; text-shadow: 0 0 30px rgba(65, 120, 233, .18); }
.demo-page .demo-hero-shell p { max-width: 450px; color: #6d7e98; }
.demo-page .demo-hero-action { color: #fff; border-color: rgba(54, 111, 224, .42); background: linear-gradient(110deg, #2c67dc, #4a82eb); box-shadow: 0 12px 28px rgba(45, 100, 211, .2); }
.demo-page .demo-hero-action:hover { border-color: rgba(39, 92, 199, .7); background: linear-gradient(110deg, #245dcc, #3d78e7); }
.demo-page .demo-hero-action span { color: #dce8ff; }
.demo-page .demo-signal-art {
  border-left-color: rgba(70, 115, 204, .1);
  background: radial-gradient(circle at 74% 48%, rgba(93, 145, 245, .22), transparent 34%), linear-gradient(90deg, rgba(245,249,255,.1), rgba(211,228,255,.68));
}
.demo-page .demo-signal-art::before {
  position: absolute;
  top: 44%;
  left: 50%;
  z-index: 0;
  content: "LIMINAL";
  color: rgba(54, 104, 205, .11);
  font-size: clamp(82px, 10vw, 154px);
  font-weight: 850;
  letter-spacing: .04em;
  line-height: 1;
  white-space: nowrap;
  text-shadow: 0 0 34px rgba(77, 132, 238, .2);
  transform: translate(-52%, -50%);
}
.demo-page .demo-signal-art::after { background: linear-gradient(90deg, rgba(246,250,255,.78), transparent 28%), radial-gradient(ellipse at 72% 46%, rgba(88, 141, 255, .14), transparent 50%); }
.demo-page .demo-signal-beams { inset: 7% 0 13% 4%; z-index: 1; }
.demo-page .demo-signal-beams i {
  top: 4%;
  bottom: 4%;
  width: clamp(34px, 4.1vw, 64px);
  border: 1px solid rgba(255,255,255,.72);
  border-radius: 18px;
  opacity: .82;
  background: linear-gradient(90deg, rgba(255,255,255,.2), rgba(121,166,247,.44) 46%, rgba(255,255,255,.34));
  box-shadow: inset 8px 0 16px rgba(255,255,255,.42), inset -8px 0 18px rgba(66,116,220,.13), 0 0 26px rgba(55, 112, 230, .18);
  filter: blur(.2px);
  backdrop-filter: blur(14px);
  animation: demo-glass-breathe 6s ease-in-out infinite alternate;
}
.demo-page .demo-signal-beams i:nth-child(1) { right: 5%; height: 91%; }
.demo-page .demo-signal-beams i:nth-child(2) { right: 18%; top: 12%; bottom: 7%; opacity: .92; }
.demo-page .demo-signal-beams i:nth-child(3) { right: 32%; top: 2%; bottom: 16%; opacity: .72; }
.demo-page .demo-signal-beams i:nth-child(4) { right: 47%; top: 22%; bottom: 5%; opacity: .56; }
.demo-page .demo-signal-beams i:nth-child(5) { right: 63%; top: 10%; bottom: 24%; opacity: .36; }
.demo-page .demo-signal-label { color: rgba(36, 82, 169, .48); }
.demo-page .demo-signal-path { border-color: rgba(84, 126, 210, .18); background: rgba(255,255,255,.58); box-shadow: inset 0 0 22px rgba(74, 122, 217, .05), 0 10px 28px rgba(72, 111, 175, .08); }
.demo-page .demo-signal-path span { color: #405270; }
.demo-page .demo-signal-path b { color: #4f7fdc; }
@keyframes demo-glass-breathe {
  from { box-shadow: inset 8px 0 16px rgba(255,255,255,.35), inset -8px 0 18px rgba(66,116,220,.1), 0 0 18px rgba(55,112,230,.12); transform: translateX(-2px); }
  to { box-shadow: inset 8px 0 20px rgba(255,255,255,.58), inset -8px 0 22px rgba(66,116,220,.17), 0 0 34px rgba(55,112,230,.24); transform: translateX(2px); }
}
@media (max-width: 1080px) {
  .demo-page .demo-hero-shell { grid-template-columns: 1fr; }
  .demo-page .demo-signal-art { min-height: 300px; }
}
@media (max-width: 720px) {
  .demo-page .demo-hero-shell .demo-identity-copy { padding: 48px 26px; }
  .demo-page .demo-signal-art::before { font-size: 74px; }
  .demo-page .demo-signal-art { min-height: 250px; }
  .demo-page .demo-signal-path { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .demo-page .demo-signal-beams i { animation: none; }
}

/* 精简开屏：移除辅助文案和分隔线后重新平衡左右留白 */
.demo-page .demo-hero-shell {
  grid-template-columns: minmax(360px, .78fr) minmax(520px, 1.22fr);
}
.demo-page .demo-hero-shell .demo-identity-copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding-left: clamp(54px, 7vw, 96px);
  padding-right: clamp(30px, 4vw, 58px);
}
.demo-page .demo-hero-shell h1 { font-size: clamp(54px, 5.6vw, 80px); }
.demo-page .demo-hero-action { margin-top: 46px; }
.demo-page .demo-signal-art { border-left: 0; }
.demo-page .demo-signal-art::after { background: radial-gradient(ellipse at 68% 48%, rgba(88, 141, 255, .16), transparent 54%); }
.demo-page .demo-signal-art::before { left: 47%; font-size: clamp(92px, 11vw, 166px); }
.demo-page .demo-signal-beams { inset: 4% 0 4% 0; }
.demo-page .demo-signal-beams i:nth-child(1) { right: 4%; height: 96%; }
.demo-page .demo-signal-beams i:nth-child(2) { right: 17%; top: 9%; bottom: 5%; }
.demo-page .demo-signal-beams i:nth-child(3) { right: 31%; top: 1%; bottom: 11%; }
.demo-page .demo-signal-beams i:nth-child(4) { right: 46%; top: 18%; bottom: 3%; }
.demo-page .demo-signal-beams i:nth-child(5) { right: 62%; top: 8%; bottom: 20%; }
@media (max-width: 1080px) {
  .demo-page .demo-hero-shell { grid-template-columns: 1fr; }
  .demo-page .demo-hero-shell .demo-identity-copy { min-height: 390px; }
}
@media (max-width: 720px) {
  .demo-page .demo-hero-shell .demo-identity-copy { min-height: 340px; padding: 48px 30px; }
  .demo-page .demo-hero-action { margin-top: 34px; }
}

/* 关于我们 */
.about-page .about-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(28px, 3vw, 40px) 0 clamp(48px, 4vw, 62px);
  background:
    radial-gradient(circle at 78% 28%, rgba(31,94,255,.13), transparent 28%),
    linear-gradient(180deg, rgba(250,252,255,.98), rgba(239,245,253,.82));
}
.about-page .about-hero::after { position: absolute; right: 0; bottom: 0; left: 0; height: 140px; content: ""; background: linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(255,255,255,.7) 55%, #fff 100%); pointer-events: none; }

.about-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 3vw, 38px);
}

.about-hero-copy { display: grid; grid-template-columns: 1fr; gap: 24px; align-items: start; }
.about-hero-copy h1 { max-width: none; margin: 0; font-size: clamp(46px, 4vw, 64px); white-space: nowrap; }
.about-hero-intro { max-width: 1180px; padding-bottom: 4px; }
.about-hero-copy p { max-width: 1180px; margin: 0; color: var(--muted); font-size: clamp(16px, 1.25vw, 18px); line-height: 1.68; }

/* 关于我们首屏采用轻量错峰上浮，保持页面稳重感 */
.about-rise-title { transition-delay: .04s; }
.about-rise-intro { transition-delay: .12s; }
.about-rise-lead { transition-delay: .08s; }
.about-rise-partner-one { transition-delay: .15s; }
.about-rise-partner-two { transition-delay: .22s; }

.about-institution-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(400px, 1.05fr);
  gap: 18px;
  align-items: stretch;
}

.about-lead-unit {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 24px;
  align-items: center;
  min-height: 316px;
  height: 100%;
  padding: clamp(28px, 2.6vw, 38px);
  border: 1px solid rgba(163,185,220,.42);
  border-radius: 30px;
  background: linear-gradient(145deg, rgba(255,255,255,.92), rgba(235,246,255,.84));
  box-shadow: none;
}

.about-lead-unit-logo {
  position: relative;
  isolation: isolate;
  width: 140px;
  height: 140px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(188,207,235,.78);
  border-radius: 20px;
  background: rgba(255,255,255,.9);
  box-shadow: var(--shadow-soft);
}

.about-lead-unit-logo::after {
  position: absolute;
  right: 8px;
  bottom: -18px;
  left: 8px;
  z-index: -1;
  height: 42px;
  border-radius: 50%;
  content: "";
  background: radial-gradient(ellipse at center, rgba(34, 116, 255, .24) 0%, rgba(40, 196, 220, .13) 38%, transparent 72%);
  filter: blur(9px);
  pointer-events: none;
}

.about-lead-unit-logo img { position: relative; z-index: 1; width: 116px; height: 116px; object-fit: contain; }
.about-lead-unit-copy > span, .about-partner-mini span { color: var(--blue); font-size: 13px; font-weight: 800; letter-spacing: .08em; }
.about-lead-unit-copy h2 { margin: 9px 0 5px; font-size: 28px; }
.about-lead-unit-copy p { margin: 0; color: var(--muted); font-size: 16px; font-weight: 500; }
.about-lead-unit-copy small { display: block; max-width: 580px; margin-top: 22px; color: var(--muted); font-size: 14px; line-height: 1.8; }

.about-partner-strip { display: grid; grid-template-columns: 1fr; grid-template-rows: repeat(2, minmax(0, 1fr)); gap: 16px; }
.about-partner-mini {
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-columns: 100px minmax(0, 1fr);
  gap: 26px;
  align-items: center;
  min-height: 150px;
  height: 100%;
  padding: 22px 28px;
  border: 1px solid rgba(190,207,233,.66);
  border-radius: 18px;
  background: rgba(255,255,255,.72);
}
.about-partner-mini::before {
  position: absolute;
  top: calc(50% + 30px);
  left: 28px;
  width: 108px;
  height: 40px;
  border-radius: 50%;
  content: "";
  background: radial-gradient(ellipse at center, rgba(34, 116, 255, .22) 0%, rgba(40, 196, 220, .12) 40%, transparent 72%);
  filter: blur(9px);
  pointer-events: none;
}
.about-partner-mini img { position: relative; z-index: 1; width: 100px; height: 100px; object-fit: contain; }
.about-partner-mini strong, .about-partner-mini small { display: block; }
.about-partner-mini strong { margin: 8px 0 4px; color: var(--ink); font-size: 24px; }
.about-partner-mini small { color: var(--muted); font-size: 15px; font-weight: 500; }

.about-work-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; margin-top: 42px; border-top: 1px solid rgba(185,203,230,.72); border-bottom: 1px solid rgba(185,203,230,.72); }
.about-work-grid article { min-height: 220px; padding: 34px 32px; border-right: 1px solid rgba(185,203,230,.72); }
.about-work-grid article:last-child { border-right: 0; }
.about-work-grid span { color: var(--blue); font-size: 13px; font-weight: 850; }
.about-work-grid h3 { margin: 42px 0 12px; font-size: 24px; }
.about-work-grid p { margin: 0; color: var(--muted); font-size: 15px; line-height: 1.75; }

.about-section { position: relative; padding: clamp(60px, 5vw, 72px) 0 clamp(52px, 4.5vw, 64px); background: #fff; }
.about-hero + .about-section { margin-top: 0; padding-top: clamp(28px, 3vw, 40px); border-radius: 0; }
.about-section.soft { background: linear-gradient(180deg, #fff 0, rgba(238,243,251,.78) 120px, rgba(238,243,251,.78) 100%); }
.about-section#news { background: linear-gradient(180deg, rgba(238,243,251,.78) 0, rgba(248,250,254,.94) 120px, #fff 300px); }
.about-intro { max-width: 760px; margin: 18px 0 0; color: var(--muted); font-size: 16px; line-height: 1.85; }

.about-unit-layout { display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(360px, .88fr); gap: 24px; margin-top: 42px; }
.about-unit-card {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 176px;
  padding: 30px;
  border: 1px solid rgba(207,221,240,.92);
  border-radius: 22px;
  background: rgba(255,255,255,.86);
  box-shadow: var(--shadow-soft);
}
.about-unit-card.lead { min-height: 376px; align-items: flex-start; flex-direction: column; justify-content: center; padding: clamp(34px, 4vw, 54px); background: linear-gradient(145deg, #fff, #edf5ff); }
.about-unit-side { display: grid; gap: 24px; }
.about-unit-logo { width: 98px; height: 98px; flex: 0 0 auto; display: grid; place-items: center; padding: 10px; border: 1px solid var(--line); border-radius: 20px; background: #fff; }
.about-unit-logo img { width: 100%; height: 100%; object-fit: contain; }
.about-unit-card.lead .about-unit-logo { width: 126px; height: 126px; }
.about-unit-card h3 { margin: 0; font-size: clamp(23px, 2.2vw, 32px); }
.about-unit-card p { margin: 10px 0 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.about-unit-role { display: inline-flex; margin-bottom: 12px; color: var(--blue); font-size: 12px; font-weight: 820; letter-spacing: .08em; }

.team-group { margin-top: 54px; }
.team-group:first-of-type { margin-top: 0; }
.team-group-head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 22px; padding-bottom: 15px; border-bottom: 1px solid rgba(202,217,238,.9); }
.team-group-head h3 { display: flex; align-items: center; gap: 11px; margin: 0; font-size: 22px; }
.team-group-head h3::before { width: 4px; height: 19px; border-radius: 2px; background: linear-gradient(180deg, #2868ed, #28a6bc); content: ""; }
.team-group-head span { color: var(--muted); font-size: 13px; }
.team-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.team-member { display: grid; justify-items: center; gap: 13px; padding: 28px 18px 26px; border: 1px solid var(--line); border-radius: 20px; background: rgba(255,255,255,.92); text-align: center; transition: transform .28s ease, border-color .28s ease, box-shadow .28s ease; }
.team-member:hover { transform: translateY(-4px); border-color: rgba(53,105,220,.28); box-shadow: 0 20px 44px rgba(41,72,128,.13); }
.team-member-avatar { display: grid; place-items: center; width: 86px; height: 86px; border: 1px solid rgba(202,217,238,.95); border-radius: 50%; background: linear-gradient(145deg, #dce8fa, #f4f7fc); color: #a2b6d2; }
.team-member-avatar svg { width: 42px; height: 42px; }
.team-member-name { color: var(--ink); font-size: 15px; font-weight: 780; }
.team-member-role { color: #8a98ae; font-size: 12px; line-height: 1.6; }

/* 导师：单张横向卡片，作为成员列表的引导项 */
.team-member-lead {
  grid-column: 1 / -1;
  justify-self: start;
  max-width: 720px;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-rows: auto auto;
  justify-items: start;
  align-items: center;
  gap: 4px 24px;
  padding: 26px 30px;
  text-align: left;
}
.team-member-lead .team-member-avatar { grid-row: 1 / 3; width: 96px; height: 96px; }
.team-member-lead .team-member-avatar svg { width: 46px; height: 46px; }
.team-member-lead .team-member-name { font-size: 17px; }

.about-news-list {
  position: relative;
  display: grid;
  align-content: start;
  gap: 22px;
  height: auto;
  margin-top: 40px;
  padding: 20px 18px 30px 30px;
  overflow: visible;
  border: 1px solid rgba(31,94,255,.18);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(255,255,255,.76), rgba(238,243,251,.64));
  box-shadow: inset 0 -42px 70px rgba(31,49,82,.06), var(--shadow-soft);
  scrollbar-width: thin;
  scrollbar-color: rgba(31,94,255,.64) rgba(216,226,241,.72);
}
.about-news-list::-webkit-scrollbar { width: 6px; }
.about-news-list::-webkit-scrollbar-track { border-radius: 999px; background: rgba(216,226,241,.72); }
.about-news-list::-webkit-scrollbar-thumb { border-radius: 999px; background: linear-gradient(180deg, rgba(31,94,255,.72), rgba(20,184,212,.72)); }
.about-news-row {
  display: grid;
  grid-template-columns: 76px 176px minmax(0, 1fr) 280px;
  gap: 24px;
  align-items: center;
  min-height: 150px;
  padding: 20px 26px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255,255,255,.90);
  box-shadow: var(--shadow-soft);
}
.about-news-num { color: #c7d3e4; font-size: 54px; font-weight: 900; line-height: 1; }
.about-news-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid rgba(197,212,234,.86);
  border-radius: 13px;
  background:
    linear-gradient(135deg, rgba(31,94,255,.08), rgba(20,184,212,.05)),
    #f4f7fc;
}
.about-news-media::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(rgba(31,94,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(31,94,255,.05) 1px, transparent 1px); background-size: 22px 22px; }
.about-news-media span { position: absolute; z-index: 1; inset: 0; display: grid; place-items: center; color: #8b9ab1; font-size: 11px; font-weight: 700; }
.about-news-media img { position: relative; z-index: 2; width: 100%; height: 100%; object-fit: cover; }
.about-news-media--video::after {
  content: "▶";
  position: absolute;
  z-index: 3;
  display: grid;
  place-items: center;
  left: 50%;
  top: 50%;
  width: 30px;
  height: 30px;
  padding-left: 2px;
  border: 1px solid rgba(255,255,255,.82);
  border-radius: 50%;
  color: #fff;
  font-size: 9px;
  line-height: 1;
  background: rgba(12,31,58,.48);
  box-shadow: 0 5px 16px rgba(7,20,42,.18);
  backdrop-filter: blur(5px);
  transform: translate(-50%, -50%);
}
.about-news-media--video img { filter: saturate(.88) contrast(1.02); }
.about-news-row h3 { margin: 0; font-size: 20px; }
.about-news-row p { margin: 7px 0 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
.about-news-tags { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 8px; }
.about-news-tags span { padding: 7px 10px; border-radius: 999px; color: var(--blue-deep); background: #eaf1ff; font-size: 11px; font-weight: 760; }
.about-news-future { min-height: 150px; display: grid; place-items: start center; padding-top: 32px; color: #94a3b8; font-size: 13px; font-weight: 620; pointer-events: none; }

.about-contact { margin-top: -1px; padding: 18px 0 80px; background: #fff; }
.about-contact-card { display: grid; grid-template-columns: 1fr auto; gap: 30px; align-items: center; padding: clamp(30px, 4vw, 48px); border-radius: 28px; color: #d8e6fb; background: linear-gradient(135deg, #10213e, #173568 62%, #0f5d73); box-shadow: var(--shadow); }
.about-contact-card h2 { color: #fff; font-size: clamp(30px, 3.5vw, 48px); }
.about-contact-card p { margin: 12px 0 0; color: #bed1ed; }

@media (max-width: 1080px) {
  .about-hero-grid, .about-unit-layout { grid-template-columns: 1fr; }
  .about-hero-copy { grid-template-columns: 1fr; gap: 24px; }
  .about-institution-hero { grid-template-columns: 1fr; }
  .about-lead-unit { min-height: 300px; }
  .about-partner-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); grid-template-rows: none; }
  .about-unit-card.lead { min-height: 310px; }
  .team-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .about-news-row { grid-template-columns: 68px 150px minmax(0, 1fr); }
  .about-news-tags { grid-column: 3; justify-content: flex-start; }
}

@media (max-width: 720px) {
  .about-page .about-hero { padding-top: 28px; }
  .about-hero-copy h1 { font-size: clamp(40px, 13vw, 54px); white-space: normal; }
  .about-institution-hero { grid-template-columns: 1fr; }
  .about-lead-unit { min-height: auto; grid-template-columns: 1fr; padding: 28px; border-radius: 22px; }
  .about-lead-unit-logo { width: 104px; height: 104px; border-radius: 20px; }
  .about-lead-unit-logo img { width: 84px; height: 84px; }
  .about-partner-mini { grid-template-columns: 84px minmax(0, 1fr); }
  .about-partner-mini img { width: 84px; height: 84px; }
  .about-lead-unit-copy h2, .about-partner-mini strong { font-size: 21px; }
  .about-partner-strip, .about-work-grid { grid-template-columns: 1fr; grid-template-rows: none; }
  .about-work-grid article { min-height: auto; border-right: 0; border-bottom: 1px solid rgba(185,203,230,.72); }
  .about-work-grid article:last-child { border-bottom: 0; }
  .about-unit-card, .about-unit-card.lead { min-height: auto; padding: 24px; }
  .about-unit-card { align-items: flex-start; flex-direction: column; }
  .about-unit-card.lead .about-unit-logo, .about-unit-logo { width: 88px; height: 88px; }
  .team-group { margin-top: 42px; }
  .team-group-head { align-items: flex-start; flex-direction: column; gap: 7px; }
  .team-grid { grid-template-columns: 1fr; }
  .team-member-lead { padding: 22px 20px; gap: 4px 18px; }
  .team-member-lead .team-member-avatar { width: 76px; height: 76px; }
  .team-member-lead .team-member-avatar svg { width: 38px; height: 38px; }
  .about-news-list { height: auto; padding: 14px 12px 22px 18px; border-radius: 22px; }
  .about-news-row { grid-template-columns: 52px minmax(0, 1fr); gap: 14px; padding: 20px; }
  .about-news-num { font-size: 42px; }
  .about-news-media { grid-column: 1 / -1; grid-row: 2; width: 100%; }
  .about-news-copy { grid-column: 2; grid-row: 1; }
  .about-news-tags { grid-column: 1 / -1; grid-row: 3; justify-content: flex-start; }
  .about-contact-card { grid-template-columns: 1fr; }
}

/* 右侧改为通顶的连续折射玻璃切片，不再使用独立圆角柱 */
.demo-page .demo-signal-beams {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
  align-items: stretch;
  justify-content: flex-end;
  overflow: hidden;
}
.demo-page .demo-signal-beams i,
.demo-page .demo-signal-beams i:nth-child(n) {
  position: relative;
  top: auto;
  right: auto;
  bottom: auto;
  flex: 0 0 auto;
  height: 100%;
  border: 0;
  border-right: 1px solid rgba(255,255,255,.42);
  border-left: 1px solid rgba(74,118,210,.06);
  border-radius: 0;
  filter: none;
  transform: none;
  animation: demo-refraction-shift 8s ease-in-out infinite alternate;
}
.demo-page .demo-signal-beams i:nth-child(1) {
  width: 15%;
  opacity: .28;
  background: linear-gradient(90deg, rgba(255,255,255,.04), rgba(102,153,246,.17), rgba(255,255,255,.13));
  backdrop-filter: blur(1px) saturate(1.04);
}
.demo-page .demo-signal-beams i:nth-child(2) {
  width: 18%;
  opacity: .48;
  background: linear-gradient(90deg, rgba(122,167,249,.12), rgba(255,255,255,.31) 42%, rgba(74,128,229,.18));
  backdrop-filter: blur(3px) saturate(1.08);
  animation-delay: -1.5s;
}
.demo-page .demo-signal-beams i:nth-child(3) {
  width: 21%;
  opacity: .68;
  background: linear-gradient(90deg, rgba(255,255,255,.14), rgba(94,146,241,.30) 52%, rgba(255,255,255,.32));
  backdrop-filter: blur(6px) saturate(1.14);
  animation-delay: -3s;
}
.demo-page .demo-signal-beams i:nth-child(4) {
  width: 19%;
  opacity: .52;
  background: linear-gradient(90deg, rgba(76,131,232,.16), rgba(255,255,255,.34) 55%, rgba(107,155,241,.18));
  backdrop-filter: blur(9px) saturate(1.2);
  animation-delay: -4.5s;
}
.demo-page .demo-signal-beams i:nth-child(5) {
  width: 24%;
  opacity: .76;
  background: linear-gradient(90deg, rgba(255,255,255,.18), rgba(83,139,238,.32) 46%, rgba(255,255,255,.38));
  box-shadow: inset 18px 0 30px rgba(255,255,255,.28), inset -12px 0 24px rgba(74,121,218,.12);
  backdrop-filter: blur(13px) saturate(1.24);
  animation-delay: -6s;
}
@keyframes demo-refraction-shift {
  from { background-position: 0 0; }
  to { background-position: 18px 0; }
}
@media (prefers-reduced-motion: reduce) {
  .demo-page .demo-signal-beams i,
  .demo-page .demo-signal-beams i:nth-child(n) { animation: none; }
}

/* 两个专题页的背景字母：功能实录 D，技术研究 T */
.demo-page .demo-signal-art::before {
  left: 52%;
  content: "D";
  color: rgba(54, 104, 205, .12);
  font-size: clamp(300px, 36vw, 560px);
  font-weight: 780;
  letter-spacing: 0;
  text-shadow: 0 0 46px rgba(77, 132, 238, .18);
  transform: translate(-50%, -50%);
}

/* 开屏与下方内容使用同一段浅蓝渐变，避免出现硬切口 */
.demo-page .demo-identity-hero { padding-bottom: 26px; }
.demo-page .demo-list-section {
  position: relative;
  padding-top: clamp(66px, 7vw, 92px);
  background: linear-gradient(180deg, #eef5fd 0, rgba(255,255,255,.98) 132px, rgba(255,255,255,.98) 100%);
}
.demo-page .demo-list-section::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 72px;
  content: "";
  background: radial-gradient(ellipse at 72% 0, rgba(68, 124, 231, .09), transparent 58%);
  pointer-events: none;
}

.research-identity-hero {
  padding: clamp(30px, 4vw, 56px) 0 26px;
  background: radial-gradient(circle at 78% 18%, rgba(66, 125, 240, .12), transparent 28%), linear-gradient(180deg, #f8fbff 0%, #eef5fd 100%);
}
.research-hero-shell {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: minmax(360px, .78fr) minmax(520px, 1.22fr);
  min-height: min(610px, calc(100vh - 170px));
  overflow: hidden;
  border: 1px solid rgba(80, 125, 215, .34);
  border-radius: 30px;
  background: linear-gradient(105deg, rgba(255,255,255,.97) 0%, rgba(248,251,255,.95) 48%, rgba(233,242,255,.92) 100%);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.82), 0 28px 70px rgba(50,91,156,.13);
}
.research-hero-shell::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  content: "";
  opacity: .7;
  background-image: linear-gradient(rgba(71,117,203,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(71,117,203,.045) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, #000, rgba(0,0,0,.35) 66%, transparent);
}
.research-identity-copy {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  padding: clamp(54px, 7vw, 96px) clamp(30px, 4vw, 58px) clamp(54px, 7vw, 96px) clamp(54px, 7vw, 96px);
}
.research-identity-copy h1 {
  margin: 0;
  color: #142036;
  font-size: clamp(54px, 5.6vw, 80px);
  line-height: .98;
  letter-spacing: -.045em;
}
.research-identity-copy h1 span { color: #2e6de5; text-shadow: 0 0 30px rgba(65,120,233,.18); }
.research-hero-action {
  display: inline-flex;
  align-items: center;
  gap: 24px;
  margin-top: 46px;
  padding: 13px 18px;
  border: 1px solid rgba(54,111,224,.42);
  border-radius: 9px;
  color: #fff;
  background: linear-gradient(110deg, #2c67dc, #4a82eb);
  box-shadow: 0 12px 28px rgba(45,100,211,.2);
  font-size: 14px;
  font-weight: 760;
  transition: transform .25s ease, background .25s ease;
}
.research-hero-action:hover { background: linear-gradient(110deg, #245dcc, #3d78e7); transform: translateY(-2px); }
.research-hero-action span { color: #dce8ff; }
.research-signal-art {
  position: relative;
  z-index: 1;
  min-width: 0;
  overflow: hidden;
  background: radial-gradient(circle at 74% 48%, rgba(93,145,245,.22), transparent 34%), linear-gradient(90deg, rgba(245,249,255,.1), rgba(211,228,255,.68));
}
.research-signal-art::before {
  position: absolute;
  top: 46%;
  left: 52%;
  z-index: 0;
  content: "T";
  color: rgba(54,104,205,.12);
  font-size: clamp(300px, 36vw, 560px);
  font-weight: 780;
  line-height: 1;
  text-shadow: 0 0 46px rgba(77,132,238,.18);
  transform: translate(-50%, -50%);
}
.research-signal-art::after {
  position: absolute;
  inset: 0;
  content: "";
  background: radial-gradient(ellipse at 68% 48%, rgba(88,141,255,.16), transparent 54%);
}
.research-signal-beams {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
  align-items: stretch;
  justify-content: flex-end;
  overflow: hidden;
}
.research-signal-beams i {
  position: relative;
  flex: 0 0 auto;
  height: 100%;
  border-right: 1px solid rgba(255,255,255,.28);
  border-left: 1px solid rgba(74,118,210,.035);
  animation: research-refraction-shift 8s ease-in-out infinite alternate;
}
.research-signal-beams i:nth-child(1) { width: 15%; opacity: .28; background: linear-gradient(90deg, rgba(255,255,255,.04), rgba(102,153,246,.17), rgba(255,255,255,.13)); backdrop-filter: blur(1px) saturate(1.04); }
.research-signal-beams i:nth-child(2) { width: 18%; opacity: .48; background: linear-gradient(90deg, rgba(122,167,249,.12), rgba(255,255,255,.31) 42%, rgba(74,128,229,.18)); backdrop-filter: blur(3px) saturate(1.08); animation-delay: -1.5s; }
.research-signal-beams i:nth-child(3) { width: 21%; opacity: .68; background: linear-gradient(90deg, rgba(255,255,255,.14), rgba(94,146,241,.30) 52%, rgba(255,255,255,.32)); backdrop-filter: blur(6px) saturate(1.14); animation-delay: -3s; }
.research-signal-beams i:nth-child(4) { width: 19%; opacity: .52; background: linear-gradient(90deg, rgba(76,131,232,.16), rgba(255,255,255,.34) 55%, rgba(107,155,241,.18)); backdrop-filter: blur(9px) saturate(1.2); animation-delay: -4.5s; }
.research-signal-beams i:nth-child(5) { width: 24%; opacity: .76; background: linear-gradient(90deg, rgba(255,255,255,.18), rgba(83,139,238,.32) 46%, rgba(255,255,255,.38)); box-shadow: inset 18px 0 30px rgba(255,255,255,.28), inset -12px 0 24px rgba(74,121,218,.12); backdrop-filter: blur(13px) saturate(1.24); animation-delay: -6s; }
@keyframes research-refraction-shift { from { background-position: 0 0; } to { background-position: 18px 0; } }
.research-page .cognition-scroll {
  position: relative;
  background: linear-gradient(180deg, #eef5fd 0, rgba(238,244,255,.9) 110px, rgba(247,251,255,.96) 48%, rgba(233,248,251,.72) 100%);
}
.research-page .cognition-scroll::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  height: 88px;
  content: "";
  background: radial-gradient(ellipse at 72% 0, rgba(68,124,231,.1), transparent 58%);
  pointer-events: none;
}
@media (max-width: 1080px) {
  .research-hero-shell { grid-template-columns: 1fr; }
  .research-identity-copy { min-height: 390px; }
  .research-signal-art { min-height: 300px; }
}
@media (max-width: 720px) {
  .research-identity-hero { padding: 20px 0 22px; }
  .research-hero-shell { width: calc(100% - 28px); border-radius: 20px; }
  .research-identity-copy { min-height: 340px; padding: 48px 30px; }
  .research-identity-copy h1 { font-size: clamp(46px, 15vw, 62px); }
  .research-hero-action { margin-top: 34px; }
  .research-signal-art { min-height: 250px; }
  .research-signal-art::before { font-size: 280px; }
}
@media (prefers-reduced-motion: reduce) {
  .research-signal-beams i { animation: none; }
  .research-hero-action { transition: none; }
}

/* 专题页开屏：向首页看齐，但以更短、更克制的画面体现二级页面层级 */
.topic-hero {
  position: relative;
  isolation: isolate;
  min-height: clamp(520px, 68vh, 720px);
  display: grid;
  place-items: center;
  overflow: hidden;
  color: #fff;
  background: #0a1830;
}
.topic-hero-media {
  position: absolute;
  inset: -18px;
  z-index: -3;
  background-position: center;
  background-size: cover;
  filter: saturate(.72) contrast(.92) blur(5px);
  transform: scale(1.035);
}
.topic-hero-demo .topic-hero-media {
  background-image: url('assets/media/features/project-simulation.jpg');
  background-position: center 53%;
}
.topic-hero-research .topic-hero-media {
  inset: 0;
  background-image: url('assets/media/research-air-ground-ultrawide.png');
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  background-color: #0b1a2d;
  transform: scale(1);
}
.topic-hero-frost {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(circle at 50% 38%, rgba(65,119,235,.48), transparent 34%),
    linear-gradient(180deg, rgba(6,17,37,.56) 0%, rgba(8,26,55,.66) 62%, rgba(232,242,253,.95) 100%);
  backdrop-filter: blur(3px);
}
.topic-hero-research .topic-hero-frost {
  background:
    radial-gradient(circle at 50% 36%, rgba(62,132,226,.42), transparent 36%),
    linear-gradient(180deg, rgba(5,22,42,.54) 0%, rgba(8,35,64,.66) 62%, rgba(238,245,253,.96) 100%);
}
.topic-hero::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  content: "";
  opacity: .28;
  background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 84px 84px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,.2), #000 48%, transparent 94%);
}
.topic-hero-copy {
  position: relative;
  z-index: 2;
  width: min(920px, calc(100% - 40px));
  margin-top: -38px;
  text-align: center;
  text-shadow: 0 8px 34px rgba(0,12,34,.28);
}
.topic-hero-label {
  display: block;
  margin-bottom: 24px;
  color: rgba(222,235,255,.82);
  font-size: 11px;
  font-weight: 720;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.topic-hero h1 {
  margin: 0;
  color: #fff;
  font-size: clamp(58px, 7vw, 96px);
  font-weight: 650;
  line-height: 1;
  letter-spacing: -.055em;
}
.topic-hero p {
  margin: 30px auto 0;
  color: rgba(237,244,255,.88);
  font-size: clamp(15px, 1.55vw, 20px);
  font-weight: 420;
  letter-spacing: .03em;
}
.topic-scroll-cue {
  position: absolute;
  bottom: 52px;
  left: 50%;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 9px;
  color: rgba(255,255,255,.74);
  font-size: 10px;
  letter-spacing: .12em;
  transform: translateX(-50%);
}
.topic-scroll-cue i {
  position: relative;
  width: 1px;
  height: 28px;
  overflow: hidden;
  background: rgba(255,255,255,.3);
}
.topic-scroll-cue i::after {
  position: absolute;
  top: -100%;
  left: 0;
  width: 1px;
  height: 100%;
  content: "";
  background: #fff;
  animation: topic-scroll-line 2s ease-in-out infinite;
}
@keyframes topic-scroll-line { 0% { transform: translateY(0); } 70%, 100% { transform: translateY(200%); } }

/* 开屏底部直接化入正文底色，不增加独立分割条 */
.demo-page .demo-list-section {
  padding-top: clamp(54px, 6vw, 78px);
  background: linear-gradient(180deg, #e8f2fc 0, rgba(255,255,255,.98) 118px, rgba(255,255,255,.98) 100%);
}
.demo-page .demo-list-section::before { display: none; }
.research-page .cognition-scroll {
  background: linear-gradient(180deg, #edf5fd 0, rgba(238,244,255,.94) 100px, rgba(247,251,255,.96) 48%, rgba(233,248,251,.72) 100%);
}
.research-page .cognition-scroll::before { display: none; }

@media (max-width: 720px) {
  .topic-hero { min-height: 520px; }
  .topic-hero-copy { margin-top: -24px; }
  .topic-hero-label { margin-bottom: 18px; font-size: 9px; letter-spacing: .14em; }
  .topic-hero h1 { font-size: clamp(52px, 16vw, 68px); }
  .topic-hero p { max-width: 310px; margin-top: 22px; font-size: 14px; line-height: 1.7; }
  .topic-scroll-cue { bottom: 34px; }
}
@media (prefers-reduced-motion: reduce) {
  .topic-scroll-cue i::after { animation: none; top: 0; }
}

/* 功能实录首屏精修：真实场景、冷白雾光与单层磨砂玻璃 */
.demo-page {
  background: #f6f9fc;
}
.demo-page .topbar {
  border-bottom: 1px solid rgba(20,40,70,.05);
  background: rgba(250,252,255,.88);
  box-shadow: 0 8px 28px rgba(31,49,82,.045);
  backdrop-filter: blur(18px) saturate(1.08);
  -webkit-backdrop-filter: blur(18px) saturate(1.08);
}
.demo-page .links a:hover,
.demo-page .links a.active { color: #4f73b8; }

.demo-page .topic-hero {
  min-height: clamp(540px, 69vh, 700px);
  background: #eaf0f5;
}
.demo-page .topic-hero-media {
  inset: -6px;
  filter: saturate(.85) contrast(.98) brightness(.9) blur(.2px);
  transform: scale(1.008);
}
.demo-page .topic-hero-frost {
  background:
    radial-gradient(circle at 45% 38%, rgba(244,248,252,.20) 0, rgba(223,233,244,.09) 28%, transparent 52%),
    radial-gradient(circle at 12% 14%, rgba(220,235,255,.24), transparent 42%),
    radial-gradient(circle at 88% 68%, rgba(221,243,245,.18), transparent 38%),
    rgba(14,31,48,.45);
  backdrop-filter: blur(2.5px) saturate(.98);
  -webkit-backdrop-filter: blur(2.5px) saturate(.98);
}
.demo-page .topic-hero::before {
  opacity: .12;
  background-image: none;
}
.demo-page .topic-hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 1;
  height: 118px;
  content: "";
  background: linear-gradient(180deg, rgba(246,249,252,0) 0%, rgba(246,249,252,.18) 34%, rgba(246,249,252,.72) 76%, #f6f9fc 100%);
  pointer-events: none;
}

.demo-page .topic-hero-copy {
  width: min(720px, calc(100% - 44px));
  margin-top: -30px;
  isolation: isolate;
  padding: clamp(44px, 5vw, 60px) clamp(36px, 5.5vw, 70px) clamp(46px, 5.3vw, 64px);
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  text-shadow: 0 5px 24px rgba(15,31,49,.18);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.demo-page .topic-hero-copy::before {
  position: absolute;
  inset: -26px -76px;
  z-index: -1;
  content: "";
  background: radial-gradient(ellipse at center, rgba(235,242,250,.16) 0%, rgba(225,235,245,.08) 45%, rgba(225,235,245,0) 75%);
  backdrop-filter: blur(8px) saturate(1.01);
  -webkit-backdrop-filter: blur(8px) saturate(1.01);
  mask-image: radial-gradient(ellipse at center, #000 0%, rgba(0,0,0,.9) 42%, transparent 76%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 0%, rgba(0,0,0,.9) 42%, transparent 76%);
}
.demo-page .topic-hero-label {
  margin-bottom: 26px;
  color: rgba(244,248,253,.78);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: .21em;
}
.demo-page .topic-hero h1 {
  color: rgba(255,255,255,.94);
  font-size: clamp(58px, 5.1vw, 68px);
  font-weight: 620;
  line-height: 1.06;
  letter-spacing: .035em;
}
.demo-page .topic-hero p {
  margin-top: 26px;
  color: rgba(255,255,255,.76);
  font-size: clamp(18px, 1.4vw, 20px);
  font-weight: 400;
  line-height: 1.7;
  letter-spacing: .01em;
}

.demo-page .topic-scroll-cue {
  bottom: 46px;
  z-index: 3;
  width: 20px;
  height: 52px;
  gap: 0;
}
.demo-page .topic-scroll-cue i {
  width: 1px;
  height: 46px;
  overflow: visible;
  background: rgba(72,94,120,.26);
}
.demo-page .topic-scroll-cue i::after {
  top: 0;
  left: -2px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(72,94,120,.68);
  box-shadow: 0 0 0 3px rgba(255,255,255,.18);
  animation: demo-scroll-dot 3.2s ease-in-out infinite;
}
@keyframes demo-scroll-dot {
  0% { opacity: 0; transform: translateY(0); }
  18% { opacity: .9; }
  72% { opacity: .75; transform: translateY(40px); }
  100% { opacity: 0; transform: translateY(40px); }
}

.demo-page .demo-list-section {
  margin-top: -1px;
  padding-top: clamp(56px, 6vw, 76px);
  background: #f6f9fc;
}
.demo-page .demo-list-item {
  border-bottom-color: rgba(74,96,122,.12);
}

@media (max-width: 720px) {
  .demo-page .topic-hero { min-height: 540px; }
  .demo-page .topic-hero-media { filter: saturate(.74) contrast(.9) brightness(.85) blur(.35px); }
  .demo-page .topic-hero-copy { width: calc(100% - 34px); margin-top: -24px; padding: 40px 26px 44px; }
  .demo-page .topic-hero-copy::before { inset: -18px -24px; }
  .demo-page .topic-hero h1 { font-size: clamp(52px, 15vw, 64px); }
  .demo-page .topic-hero p { max-width: 290px; margin-top: 22px; font-size: 16px; }
  .demo-page .topic-scroll-cue { bottom: 30px; }
}
@media (prefers-reduced-motion: reduce) {
  .demo-page .topic-scroll-cue i::after { opacity: .65; animation: none; transform: translateY(20px); }
}

/* 功能实录首屏文字：进入页面时轻微错峰上浮，不使用弹跳或缩放 */
.demo-page .topic-hero-copy.reveal {
  opacity: 1;
  transform: none;
  transition: none;
}
.demo-page .topic-hero-copy > .topic-hero-label,
.demo-page .topic-hero-copy > h1,
.demo-page .topic-hero-copy > p {
  opacity: 0;
  transform: translateY(22px);
}
.demo-page .topic-hero-copy.in > .topic-hero-label {
  animation: demo-hero-text-rise .72s cubic-bezier(.22,.72,.22,1) .06s forwards;
}
.demo-page .topic-hero-copy.in > h1 {
  animation: demo-hero-text-rise .86s cubic-bezier(.22,.72,.22,1) .16s forwards;
}
.demo-page .topic-hero-copy.in > p {
  animation: demo-hero-text-rise .82s cubic-bezier(.22,.72,.22,1) .3s forwards;
}
@keyframes demo-hero-text-rise {
  from { opacity: 0; transform: translateY(22px); }
  to { opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce) {
  .demo-page .topic-hero-copy > .topic-hero-label,
  .demo-page .topic-hero-copy > h1,
  .demo-page .topic-hero-copy > p {
    opacity: 1;
    transform: none;
    animation: none;
  }
}

/* 技术研究与功能实录使用同一专题页规格，仅保留各自背景与文字 */
.research-page {
  background: #f6f9fc;
}
.research-page .topbar {
  border-bottom: 1px solid rgba(20,40,70,.05);
  background: rgba(250,252,255,.88);
  box-shadow: 0 8px 28px rgba(31,49,82,.045);
  backdrop-filter: blur(18px) saturate(1.08);
  -webkit-backdrop-filter: blur(18px) saturate(1.08);
}
.research-page .links a:hover,
.research-page .links a.active { color: #4f73b8; }
.research-page .topic-hero {
  min-height: clamp(540px, 69vh, 700px);
  background: #eaf0f5;
}
.research-page .topic-hero-media {
  inset: -6px;
  filter: saturate(.64) contrast(.95) brightness(1.02) blur(.2px);
  transform: scale(1.008);
}
.research-page .topic-hero-frost {
  background:
    radial-gradient(circle at 45% 38%, rgba(244,248,252,.20) 0, rgba(223,233,244,.09) 28%, transparent 52%),
    radial-gradient(circle at 12% 14%, rgba(220,235,255,.24), transparent 42%),
    radial-gradient(circle at 88% 68%, rgba(221,243,245,.18), transparent 38%),
    rgba(14,31,48,.45);
  backdrop-filter: blur(.6px) saturate(.98);
  -webkit-backdrop-filter: blur(.6px) saturate(.98);
}
.research-page .topic-hero::before {
  opacity: .12;
  background-image: none;
}
.research-page .topic-hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 1;
  height: 118px;
  content: "";
  background: linear-gradient(180deg, rgba(246,249,252,0) 0%, rgba(246,249,252,.18) 34%, rgba(246,249,252,.72) 76%, #f6f9fc 100%);
  pointer-events: none;
}
.research-page .topic-hero-copy {
  width: min(720px, calc(100% - 44px));
  margin-top: -30px;
  isolation: isolate;
  padding: clamp(44px, 5vw, 60px) clamp(36px, 5.5vw, 70px) clamp(46px, 5.3vw, 64px);
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  text-shadow: 0 5px 24px rgba(15,31,49,.18);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.research-page .topic-hero-copy::before {
  position: absolute;
  inset: -26px -76px;
  z-index: -1;
  content: "";
  background: radial-gradient(ellipse at center, rgba(235,242,250,.16) 0%, rgba(225,235,245,.08) 45%, rgba(225,235,245,0) 75%);
  backdrop-filter: blur(8px) saturate(1.01);
  -webkit-backdrop-filter: blur(8px) saturate(1.01);
  mask-image: radial-gradient(ellipse at center, #000 0%, rgba(0,0,0,.9) 42%, transparent 76%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 0%, rgba(0,0,0,.9) 42%, transparent 76%);
}
.research-page .topic-hero-label {
  margin-bottom: 26px;
  color: rgba(244,248,253,.78);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: .21em;
}
.research-page .topic-hero h1 {
  color: rgba(255,255,255,.94);
  font-size: clamp(58px, 5.1vw, 68px);
  font-weight: 620;
  line-height: 1.06;
  letter-spacing: .035em;
}
.research-page .topic-hero p {
  margin-top: 26px;
  color: rgba(255,255,255,.76);
  font-size: clamp(18px, 1.4vw, 20px);
  font-weight: 400;
  line-height: 1.7;
  letter-spacing: .01em;
}
.research-page .topic-scroll-cue {
  bottom: 46px;
  z-index: 3;
  width: 20px;
  height: 52px;
  gap: 0;
}
.research-page .topic-scroll-cue i {
  width: 1px;
  height: 46px;
  overflow: visible;
  background: rgba(72,94,120,.26);
}
.research-page .topic-scroll-cue i::after {
  top: 0;
  left: -2px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(72,94,120,.68);
  box-shadow: 0 0 0 3px rgba(255,255,255,.18);
  animation: demo-scroll-dot 3.2s ease-in-out infinite;
}
.research-page .cognition-scroll {
  margin-top: -1px;
  background: transparent;
}

/* 技术页正文使用一张连续底色，各章节通过留白而非整屏色块区分 */
.research-page main {
  background:
    radial-gradient(circle at 90% 28%, rgba(93,151,238,.10), transparent 24%),
    radial-gradient(circle at 8% 60%, rgba(84,190,186,.08), transparent 23%),
    radial-gradient(circle at 84% 86%, rgba(111,139,224,.07), transparent 22%),
    linear-gradient(180deg, #f6f9fc 0%, #eef5fd 25%, #f7fbff 49%, #edf7f8 73%, #f7fbff 100%);
}
.research-page .section:not(.dark),
.research-page .section.soft,
.research-page .research-results-section {
  border-top: 0;
  border-bottom: 0;
  background: transparent;
}

/* 技术研究首屏使用同样的错峰上浮 */
.research-page .topic-hero-copy.reveal {
  opacity: 1;
  transform: none;
  transition: none;
}
.research-page .topic-hero-copy > .topic-hero-label,
.research-page .topic-hero-copy > h1,
.research-page .topic-hero-copy > p {
  opacity: 0;
  transform: translateY(22px);
}
.research-page .topic-hero-copy.in > .topic-hero-label { animation: demo-hero-text-rise .72s cubic-bezier(.22,.72,.22,1) .06s forwards; }
.research-page .topic-hero-copy.in > h1 { animation: demo-hero-text-rise .86s cubic-bezier(.22,.72,.22,1) .16s forwards; }
.research-page .topic-hero-copy.in > p { animation: demo-hero-text-rise .82s cubic-bezier(.22,.72,.22,1) .3s forwards; }

@media (max-width: 720px) {
  .research-page .topic-hero { min-height: 540px; }
  .research-page .topic-hero-media { background-position: 88% center; filter: saturate(.58) contrast(.92) brightness(.98) blur(.35px); }
  .research-page .topic-hero-copy { width: calc(100% - 34px); margin-top: -24px; padding: 40px 26px 44px; }
  .research-page .topic-hero-copy::before { inset: -18px -24px; }
  .research-page .topic-hero h1 { font-size: clamp(52px, 15vw, 64px); }
  .research-page .topic-hero p { max-width: 290px; margin-top: 22px; font-size: 16px; }
  .research-page .topic-scroll-cue { bottom: 30px; }
}
@media (prefers-reduced-motion: reduce) {
  .research-page .topic-scroll-cue i::after { opacity: .65; animation: none; transform: translateY(20px); }
  .research-page .topic-hero-copy > .topic-hero-label,
  .research-page .topic-hero-copy > h1,
  .research-page .topic-hero-copy > p { opacity: 1; transform: none; animation: none; }
}

/* Research opening: one focused visual chapter at a time. */
.research-page .cognition-scroll {
  height: auto;
  margin-top: 0;
  padding: clamp(68px, 6.5vw, 104px) 0 clamp(96px, 9vw, 142px);
  background: transparent;
  scroll-margin-top: 74px;
}
.research-page .cognition-scroll-stage {
  position: relative;
  top: auto;
  display: block;
  height: auto;
}
.research-page .cognition-scroll-heading {
  max-width: 920px;
  margin: 0 0 clamp(42px, 4.8vw, 68px);
}
.research-page .cognition-scroll-heading .kicker {
  margin-bottom: 22px;
  font-size: 12px;
  letter-spacing: .15em;
}
.research-page .cognition-scroll-heading h1 {
  margin: 0;
  color: var(--ink);
  font-size: clamp(46px, 4.9vw, 72px);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -.045em;
}
.research-page .cognition-scroll-heading p {
  max-width: 760px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(17px, 1.25vw, 20px);
  line-height: 1.75;
}
.research-page .cognition-scroll-progress {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  align-items: stretch;
  gap: clamp(14px, 2.3vw, 36px);
  margin: 0 0 clamp(26px, 3.2vw, 46px);
  padding: 0;
  border-bottom: 1px solid rgba(106, 133, 167, .24);
}
.research-page .cognition-scroll-progress a {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-width: 0;
  padding: 0 0 17px;
  color: #7c8ba1;
  font-size: clamp(13px, 1.05vw, 16px);
  font-weight: 650;
  line-height: 1.5;
  text-decoration: none;
  white-space: nowrap;
  transform: none;
  transition: color .22s ease;
}
.research-page .cognition-scroll-progress a::before,
.research-page .cognition-scroll-progress a span::before { display: none; }
.research-page .cognition-scroll-progress a span {
  position: static;
  padding: 0;
  color: inherit;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .06em;
  transform: none;
}
.research-page .cognition-scroll-progress a:hover,
.research-page .cognition-scroll-progress a.is-active { color: var(--blue-deep); transform: none; }
.research-page .cognition-scroll-progress a.is-active::after {
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  content: "";
  background: var(--blue);
}
.research-page .cognition-scroll-progress a:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 4px;
  border-radius: 2px;
}
.research-page .cognition-scroll-panels { position: relative; height: auto; }
.research-page .cognition-scroll-panel,
.research-page .cognition-scroll-panel.is-active {
  position: relative;
  inset: auto;
  display: block;
  visibility: visible;
  opacity: 1;
  transform: none;
  transition: none;
}
.research-page .cognition-scroll.is-interactive .cognition-scroll-panel[hidden] { display: none; }
.research-page .cognition-scroll:not(.is-interactive) .cognition-scroll-panel + .cognition-scroll-panel {
  margin-top: 90px;
}
.research-page .cognition-scroll-panel figure {
  width: 100%;
  max-width: none;
  margin: 0 0 clamp(24px, 3.5vw, 46px);
  overflow: hidden;
  aspect-ratio: 2.35 / 1;
  border: 0;
  border-radius: 3px;
  background: #f0f4f8;
  box-shadow: none;
}
.research-page .cognition-scroll-panel figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.research-page .cognition-panel-copy {
  display: grid;
  grid-template-columns: minmax(280px, .75fr) minmax(0, 1fr);
  column-gap: clamp(42px, 8vw, 130px);
  max-width: none;
  margin: 0;
}
.research-page .cognition-panel-copy > span {
  grid-column: 1;
  margin: 0 0 10px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .11em;
}
.research-page .cognition-panel-copy h3 {
  grid-column: 1;
  grid-row: 2 / 4;
  align-self: start;
  margin: 0;
  font-size: clamp(32px, 3vw, 46px);
  line-height: 1.25;
  letter-spacing: -.035em;
}
.research-page .cognition-panel-copy p {
  grid-column: 2;
  grid-row: 1 / 3;
  max-width: 690px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(16px, 1.2vw, 18px);
  line-height: 1.8;
}
.research-page .cognition-keywords {
  grid-column: 2;
  grid-row: 3;
  gap: 24px;
  margin-top: 20px;
}
.research-page .cognition-keywords i {
  padding: 0;
  border: 0;
  border-radius: 0;
  color: var(--blue-deep);
  background: transparent;
  font-size: 12px;
  font-weight: 700;
}
@media (max-width: 900px) {
  .research-page .cognition-scroll-progress { gap: 12px; }
  .research-page .cognition-scroll-progress a { gap: 6px; font-size: 12px; }
  .research-page .cognition-panel-copy { column-gap: 36px; }
}
@media (max-width: 720px) {
  .research-page .cognition-scroll { padding: 58px 0 92px; }
  .research-page .cognition-scroll-heading { margin-bottom: 35px; }
  .research-page .cognition-scroll-heading h1 { font-size: clamp(40px, 10.5vw, 54px); }
  .research-page .cognition-scroll-heading p { margin-top: 18px; font-size: 16px; }
  .research-page .cognition-scroll-progress {
    display: flex;
    flex-direction: row;
    align-items: stretch;
    gap: 24px;
    margin-right: calc(-1 * clamp(14px, 3.5vw, 54px));
    margin-bottom: 24px;
    overflow-x: auto;
    scrollbar-width: none;
  }
  .research-page .cognition-scroll-progress::-webkit-scrollbar { display: none; }
  .research-page .cognition-scroll-progress a { flex: 0 0 auto; font-size: 13px; }
  .research-page .cognition-scroll-panel figure { aspect-ratio: 1.46 / 1; margin-bottom: 26px; }
  .research-page .cognition-panel-copy { display: block; }
  .research-page .cognition-panel-copy > span { margin-bottom: 9px; }
  .research-page .cognition-panel-copy h3 { font-size: 32px; }
  .research-page .cognition-panel-copy p { margin-top: 16px; font-size: 16px; }
  .research-page .cognition-keywords { gap: 12px 18px; margin-top: 18px; }
}

/* Research chapters: normal document scroll drives one restrained sticky visual. */
.research-page .cognition-story {
  position: relative;
  height: calc(440vh - 74px);
}
.research-page .cognition-story .cognition-scroll-stage {
  position: sticky;
  top: 74px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: stretch;
  gap: clamp(18px, 2.4vh, 28px);
  height: calc(100vh - 74px);
}
.research-page .cognition-story .cognition-scroll-progress {
  position: relative;
  flex: none;
  margin: 0;
  --story-progress: 0%;
}
.research-page .cognition-story .cognition-scroll-progress::after {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: var(--story-progress);
  height: 2px;
  content: "";
  background: var(--blue);
  pointer-events: none;
  transition: width .1s linear;
}
.research-page .cognition-story .cognition-scroll-progress a.is-active::after { display: none; }
.research-page .cognition-story .cognition-scroll-panels {
  flex: none;
  width: 100%;
  height: min(72vh, 760px);
}
.research-page .cognition-scroll.is-interactive .cognition-scroll-panel {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  visibility: hidden;
  opacity: 0;
  transform: none;
  pointer-events: none;
  transition: opacity .52s ease, visibility 0s linear .52s;
}
.research-page .cognition-scroll.is-interactive .cognition-scroll-panel.is-active {
  z-index: 2;
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  transition: opacity .52s ease, visibility 0s;
}
.research-page .cognition-scroll-panel figure {
  flex-shrink: 0;
  height: min(48vh, 520px);
  margin-bottom: clamp(18px, 2.5vh, 26px);
  aspect-ratio: auto;
  border: 1px solid rgba(120, 150, 190, .1);
  border-radius: 22px;
  box-shadow: 0 24px 70px rgba(30, 55, 90, .06);
}
.research-page .cognition-scroll-panel figure img {
  opacity: .88;
  transform: scale(.985);
  transition: opacity .52s ease, transform .52s ease;
}
.research-page .cognition-scroll-panel.is-active figure img { opacity: 1; transform: scale(1); }
.research-page .cognition-scroll-panel .cognition-panel-copy {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .5s ease, transform .5s ease;
}
.research-page .cognition-scroll-panel.is-active .cognition-panel-copy {
  opacity: 1;
  transform: translateY(0);
  transition-delay: .06s;
}
@media (max-height: 740px) and (min-width: 721px) {
  .research-page .cognition-story .cognition-scroll-panels { height: 73vh; }
  .research-page .cognition-scroll-panel figure { height: 43vh; }
  .research-page .cognition-panel-copy h3 { font-size: clamp(27px, 2.5vw, 38px); }
  .research-page .cognition-panel-copy p { font-size: 15px; }
}
@media (max-width: 720px) {
  .research-page .cognition-story { height: auto; }
  .research-page .cognition-story .cognition-scroll-stage {
    position: relative;
    top: auto;
    display: block;
    height: auto;
  }
  .research-page .cognition-story .cognition-scroll-progress { margin-bottom: 24px; }
  .research-page .cognition-story .cognition-scroll-progress::after { display: none; }
  .research-page .cognition-story .cognition-scroll-panels { height: auto; }
  .research-page .cognition-scroll.is-interactive .cognition-scroll-panel,
  .research-page .cognition-scroll.is-interactive .cognition-scroll-panel.is-active {
    position: relative;
    inset: auto;
    display: block;
    visibility: visible;
    margin-bottom: 46px;
    opacity: 1;
    pointer-events: auto;
    transition: none;
  }
  .research-page .cognition-scroll-panel figure {
    height: auto;
    margin-bottom: 26px;
    aspect-ratio: 1.46 / 1;
    border-radius: 18px;
  }
  .research-page .cognition-scroll-panel figure img { opacity: 1; transform: none; transition: none; }
  .research-page .cognition-scroll-panel .cognition-panel-copy { opacity: 1; transform: none; transition: none; }
}
@media (prefers-reduced-motion: reduce) {
  .research-page .cognition-scroll-panel,
  .research-page .cognition-scroll-panel figure img,
  .research-page .cognition-scroll-panel .cognition-panel-copy,
  .research-page .cognition-story .cognition-scroll-progress::after { transition: none !important; }
}

/* Unified Liminal brand mark */
.site-logo { display:flex !important; align-items:center; justify-content:center; flex:0 0 auto; width:132px; height:62px; overflow:hidden; border-radius:9px; background:transparent; }
.site-logo img { display:block; width:100%; height:100%; object-fit:contain; }
.footer-logo { display:inline-flex; align-items:center; width:180px; height:90px; overflow:hidden; border-radius:10px; background:transparent; }
.footer-logo img { display:block; width:100%; height:100%; object-fit:contain; }
@media (max-width:720px) {
  .site-logo { width:104px; height:48px; border-radius:7px; }
  .footer-logo { width:150px; height:75px; }
}


/* === Research system map imported from homepage === */
#architecture.research-system-logic {
  position: relative;
  overflow: hidden;
  padding-top: clamp(76px, 8vw, 112px);
  padding-bottom: clamp(72px, 8vw, 110px);
  color: var(--ink);
  background:
    radial-gradient(circle at 82% 16%, rgba(132, 195, 225, .13), transparent 32%),
    radial-gradient(circle at 17% 70%, rgba(111, 147, 211, .08), transparent 29%),
    linear-gradient(180deg, #f6f9fe 0%, #fbfdff 100%);
}
#architecture.research-system-logic::before {
  position: absolute;
  inset: 0;
  content: "";
  background-image: radial-gradient(circle, rgba(65, 101, 145, .06) .65px, transparent .8px);
  background-size: 22px 22px;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 17%, #000 83%, transparent);
  mask-image: linear-gradient(to bottom, transparent, #000 17%, #000 83%, transparent);
  pointer-events: none;
}
#architecture.research-system-logic > .wrap { position: relative; z-index: 1; }
#architecture .section-head { margin-bottom: 0; }
#architecture .section-head h2 { color: var(--ink); }
#architecture .section-head .kicker { color: var(--blue); }
    #architecture .system-map {
      display: block;
      width: min(90%, 1420px);
      min-height: 0;
      margin: -70px auto 0;
      overflow: visible;
      border: 0;
      border-radius: 0;
      background: transparent;
      box-shadow: none;
      backdrop-filter: none;
    }

    #architecture .system-map-visual {
      min-height: clamp(660px, 72vh, 780px);
      overflow: hidden;
      border: 1px solid rgba(127,156,191,.24);
      border-radius: 30px;
      box-shadow: 0 28px 74px rgba(31,54,84,.10);
    }

    /* 进入顺序：核心、连接、外围节点、反馈回路 */
    #architecture .system-map:not(.in) .system-map-center,
    #architecture .system-map:not(.in) .system-map-lines,
    #architecture .system-map:not(.in) .system-map-task,
    #architecture .system-map:not(.in) .system-map-source,
    #architecture .system-map:not(.in) .system-map-feedback,
    #architecture .system-map:not(.in) .system-map-loop-label { opacity: 0; }

    #architecture .system-map.in .system-map-center { animation: system-core-enter .58s cubic-bezier(.2,.75,.25,1) both, system-map-breathe 7s ease-in-out .7s infinite, system-core-shape 16s ease-in-out .7s infinite; }
    #architecture .system-map.in .system-map-lines { animation: system-lines-enter .72s cubic-bezier(.2,.7,.25,1) .32s both; }
    #architecture .system-map.in .system-map-task { animation: system-node-enter .52s ease .72s both, system-task-breathe 5.6s ease-in-out 1.25s infinite; }
    #architecture .system-map.in .system-map-source { animation: system-node-enter .52s ease both; }
    #architecture .system-map.in .system-map-source:nth-child(1) { animation-delay: .82s; }
    #architecture .system-map.in .system-map-source:nth-child(2) { animation-delay: .94s; }
    #architecture .system-map.in .system-map-source:nth-child(3) { animation-delay: 1.06s; }
    #architecture .system-map.in .system-map-feedback,
    #architecture .system-map.in .system-map-loop-label { animation: system-feedback-enter .58s ease 1.28s both; }

    @keyframes system-core-enter {
      from { opacity: 0; transform: scale(.88); }
      to { opacity: 1; transform: scale(1); }
    }

    @keyframes system-lines-enter {
      from { opacity: 0; transform: scale(.45); }
      to { opacity: 1; transform: scale(1); }
    }

    @keyframes system-node-enter {
      from { opacity: 0; transform: translateY(14px); }
      to { opacity: 1; transform: translateY(0); }
    }

    @keyframes system-feedback-enter {
      from { opacity: 0; transform: translateX(-10px); }
      to { opacity: 1; transform: translateX(0); }
    }

    /* 流程导航与系统图之间的轻量联动 */
    .system-map-visual .system-map-task,
    .system-map-visual .system-map-center,
    .system-map-visual .system-map-feedback,
    .system-map-visual .system-map-source {
      transition: border-color .3s ease, box-shadow .3s ease, opacity .3s ease, filter .3s ease;
    }

    .system-map-visual.is-focus-resources .system-map-source,
    .system-map-visual.is-focus-task .system-map-task,
    .system-map-visual.is-focus-orchestration .system-map-center,
    .system-map-visual.is-focus-adjustment .system-map-center,
    .system-map-visual.is-focus-adjustment .system-map-feedback,
    .system-map-visual.is-focus-feedback .system-map-feedback {
      border-color: rgba(31,94,255,.42);
      box-shadow: 0 18px 40px rgba(35,82,145,.14);
    }

    .system-map-visual.is-focus-resources .system-map-source { transform: translateY(-3px); }
    .system-map-visual.is-focus-task .system-map-task { box-shadow: 0 16px 34px rgba(35,82,145,.13); }
    .system-map-visual.is-focus-feedback .system-map-loop-label { color: #2e6daa; }

    #architecture .workflow-timeline {
      width: min(88%, 1320px);
      margin: 34px auto 0;
      padding: 0;
      overflow: visible;
      border: 0;
      border-radius: 0;
      background: transparent;
      box-shadow: none;
      backdrop-filter: none;
    }

    #architecture .workflow-timeline ol {
      display: grid;
      grid-template-columns: repeat(5, minmax(0,1fr));
      gap: 0;
      padding: 0;
      border: 0;
    }

    #architecture .workflow-timeline li {
      position: relative;
      display: flex;
      min-height: 70px;
      align-items: center;
      justify-content: center;
      gap: 10px;
      padding: 12px 24px;
      border: 0;
      background: transparent;
      cursor: default;
      outline: none;
      opacity: 0;
      transform: translateY(8px);
      transition: color .25s ease, opacity .25s ease, transform .25s ease;
    }

    #architecture .workflow-timeline.in li { animation: workflow-step-enter .45s ease forwards; }
    #architecture .workflow-timeline li::before { display: none; }
    #architecture .workflow-timeline li::after {
      position: absolute;
      top: 50%;
      right: -5px;
      left: auto;
      width: auto;
      height: auto;
      content: "→";
      color: rgba(74,111,155,.42);
      background: none;
      font-size: 13px;
      transform: translateY(-50%);
      animation: none !important;
    }

    #architecture .workflow-timeline li:last-child::after { display: none; }

    #architecture .workflow-timeline-index {
      display: inline;
      width: auto;
      height: auto;
      color: rgba(46,93,151,.42);
      border: 0;
      background: none;
      box-shadow: none;
      font-size: 12px;
      font-weight: 820;
      letter-spacing: .06em;
    }

    #architecture .workflow-timeline h4 {
      margin: 0;
      color: #5f7086;
      font-size: 14px;
      font-weight: 720;
      line-height: 1.35;
      white-space: nowrap;
      transition: color .25s ease;
    }

    #architecture .workflow-timeline li:is(:hover,:focus-visible,.is-active) .workflow-timeline-index { color: var(--blue); }
    #architecture .workflow-timeline li:is(:hover,:focus-visible,.is-active) h4 { color: var(--ink); }
    #architecture .workflow-timeline li:is(:hover,:focus-visible,.is-active) { transform: translateY(-2px); }

    @media (max-width: 980px) {
      .reality-section { padding-bottom: 44px; }
      #architecture { padding-top: 36px; }
      #architecture .system-map { width: 96%; }
      #architecture .system-map-visual { min-height: 640px; }
      #architecture .workflow-timeline { width: 96%; }
      #architecture .workflow-timeline li { padding-right: 12px; padding-left: 12px; }
    }

    @media (max-width: 720px) {
      #architecture { padding-top: 28px; padding-bottom: 64px; }
      .workflow-chapter-head { max-width: 100%; margin-bottom: 28px; }
      .workflow-chapter-head h2 { font-size: clamp(36px, 9.7vw, 44px); }
      .workflow-chapter-head p { margin-top: 15px; font-size: 14px; }
      #architecture .system-map { width: 100%; }
      #architecture .system-map-visual { min-height: 520px; border-radius: 22px; }
      #architecture .workflow-timeline { width: 100%; margin-top: 24px; overflow-x: auto; }
      #architecture .workflow-timeline ol { min-width: 650px; }
      #architecture .workflow-timeline li { min-height: 60px; padding: 10px 18px; }
    }

    @media (prefers-reduced-motion: reduce) {
      #architecture .system-map.in .system-map-center,
      #architecture .system-map.in .system-map-lines,
      #architecture .system-map.in .system-map-task,
      #architecture .system-map.in .system-map-source,
      #architecture .system-map.in .system-map-feedback,
      #architecture .system-map.in .system-map-loop-label { opacity: 1; animation: none !important; transform: none; }
    }

    /* 空间化系统关系网络：弱化面板，突出节点与闭环路径 */
    #architecture .orchestration-map {
      position: relative;
      display: block;
      min-height: 650px;
      padding: 0;
      overflow: visible;
      isolation: isolate;
      border: 0;
      border-radius: 0;
      background: transparent;
      box-shadow: none;
    }

    #architecture .orchestration-map::before {
      position: absolute;
      inset: 7% 2%;
      z-index: -1;
      content: "";
      background-image: radial-gradient(circle, rgba(73,111,153,.055) .6px, transparent .8px);
      background-size: 20px 20px;
      -webkit-mask-image: radial-gradient(ellipse 68% 62% at center, #000 8%, transparent 100%);
      mask-image: radial-gradient(ellipse 68% 62% at center, #000 8%, transparent 100%);
      pointer-events: none;
    }

    #architecture .orchestration-map::after { display: none; }

    #architecture .workflow-timeline {
      width: min(90%, 1420px);
      margin-top: 6px;
    }

    #architecture .workflow-timeline ol {
      border-top: 1px solid rgba(111,151,187,.2);
    }

    #architecture .workflow-timeline li {
      min-height: 72px;
      gap: 11px;
      border-radius: 14px;
    }

    #architecture .workflow-timeline li::after { color: rgba(55,111,166,.52); font-size: 16px; }
    #architecture .workflow-timeline-index { font-size: 15px; font-weight: 850; }
    #architecture .workflow-timeline h4 { font-size: 15px; }
    #architecture .workflow-timeline li:is(.is-active,:hover,:focus-visible) { background: rgba(225,239,251,.46); }
    #architecture .workflow-timeline li:focus-visible { outline: 2px solid rgba(40,104,174,.45); outline-offset: 2px; }

    .orchestration-links {
      position: absolute;
      inset: 0;
      z-index: 0;
      width: 100%;
      height: 100%;
      overflow: visible;
      pointer-events: none;
    }

    .orchestration-link {
      fill: none;
      stroke: #91afc8;
      stroke-width: 1;
      stroke-linecap: round;
      stroke-linejoin: round;
      vector-effect: non-scaling-stroke;
      opacity: .4;
      transition: opacity .35s ease, stroke .35s ease, stroke-width .35s ease;
    }

    .orchestration-link.is-primary { stroke: #628eb7; stroke-width: 1.8; opacity: .78; }
    .orchestration-link.is-branch { stroke: #8cb3bf; stroke-width: 1.25; opacity: .53; }
    .orchestration-link.is-capability-transfer { stroke: #8daec3; stroke-width: 1.25; opacity: .7; }
    .orchestration-link.is-feedback { stroke: #5b9ca6; opacity: .7; }
    .orchestration-flow-dot { fill: #367eaf; opacity: .72; }
    .orchestration-flow-dot.is-branch { opacity: .4; }
    .orchestration-flow-dot.is-feedback { fill: #468f92; }

    .orchestration-node,
    .orchestration-core {
      position: absolute;
      z-index: 2;
      transform: translate(-50%, -50%);
      transition: border-color .3s ease, box-shadow .3s ease, background .3s ease, filter .3s ease;
    }

    .orchestration-node {
      display: grid;
      align-content: center;
      min-height: 76px;
      padding: 15px 20px;
      border: 1px solid rgba(98,141,179,.24);
      border-radius: 22px;
      background: linear-gradient(145deg, rgba(255,255,255,.86), rgba(242,249,254,.7));
      box-shadow: 0 14px 38px rgba(34,71,111,.055), inset 0 1px 0 rgba(255,255,255,.9);
      backdrop-filter: blur(9px);
    }

    .orchestration-node strong { color: #19304c; font-size: 16px; font-weight: 760; line-height: 1.3; }
    .orchestration-node-index { display: block; margin-bottom: 5px; color: #6a88a7; font-size: 9px; font-weight: 780; letter-spacing: .13em; }
    .orchestration-input { top: 24%; left: 50%; width: 234px; border-radius: 25px; text-align: center; }
    .orchestration-feedback { top: 46%; left: 84%; width: 222px; border-radius: 24px 24px 11px 24px; border-color: rgba(73,148,159,.3); }

    .orchestration-core {
      top: 48%;
      left: 50%;
      display: flex;
      width: 184px;
      height: 184px;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      border: 1px solid rgba(60,116,166,.42);
      border-radius: 50%;
      background: radial-gradient(circle at 33% 24%, rgba(255,255,255,.99) 0%, rgba(239,248,255,.97) 33%, rgba(198,224,242,.93) 74%, rgba(159,201,227,.82) 100%);
      box-shadow: 0 18px 48px rgba(36,91,139,.14), 0 0 0 7px rgba(255,255,255,.52), inset 0 2px 4px rgba(255,255,255,.94), inset 0 -8px 22px rgba(55,113,163,.1);
      text-align: center;
    }

    .orchestration-core::before {
      position: absolute;
      inset: -31px;
      z-index: -2;
      content: "";
      border-radius: 50%;
      background: radial-gradient(circle, rgba(130,187,224,.2), rgba(190,221,241,.08) 53%, transparent 72%);
      pointer-events: none;
    }

    .orchestration-core-ring {
      position: absolute;
      inset: -18px;
      z-index: -1;
      border-radius: 50%;
      background: conic-gradient(from 22deg, rgba(55,117,173,.4) 0 44deg, transparent 44deg 112deg, rgba(85,152,185,.27) 112deg 152deg, transparent 152deg 245deg, rgba(67,126,179,.3) 245deg 298deg, transparent 298deg 360deg);
      -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 1.5px));
      mask: radial-gradient(farthest-side, transparent calc(100% - 2px), #000 calc(100% - 1.5px));
      animation: orchestration-ring 11s ease-in-out infinite;
    }

    .orchestration-core-ring::after {
      position: absolute;
      inset: -15px;
      content: "";
      border: 1px solid rgba(82,134,179,.16);
      border-radius: 50%;
    }

    .orchestration-core strong { color: #194472; font-size: 23px; font-weight: 840; letter-spacing: -.035em; text-shadow: 0 1px 0 rgba(255,255,255,.75); }
    .orchestration-core small { margin-top: 7px; color: #5f83a7; font-size: 9px; font-weight: 820; letter-spacing: .14em; }
    .orchestration-core-caption { margin-top: 16px; color: #5a7290; font-size: 11px; font-weight: 670; }

    .orchestration-resource {
      grid-template-columns: 31px minmax(0,1fr);
      align-items: center;
      gap: 9px;
      width: 166px;
      min-height: 72px;
      padding: 10px 13px;
      border-color: rgba(91,138,177,.18);
      box-shadow: 0 12px 30px rgba(35,83,121,.055), inset 0 1px 0 rgba(255,255,255,.85);
    }

    .orchestration-resource svg {
      width: 28px;
      height: 28px;
      padding: 5px;
      border-radius: 9px;
      color: #3d75aa;
      background: rgba(62,116,177,.055);
      fill: none;
      stroke: currentColor;
      stroke-width: 1.7;
    }

    .orchestration-resource strong { display: block; font-size: 14px; white-space: nowrap; }
    .orchestration-resource small { display: block; margin-top: 4px; color: #8aa0b6; font-size: 8px; font-weight: 760; letter-spacing: .1em; }
    .orchestration-resource.is-device { top: 80%; left: 50%; border-radius: 24px 11px 24px 24px; }
    .orchestration-resource.is-data { top: 78%; left: 70%; border-radius: 25px; background: linear-gradient(145deg, rgba(246,252,255,.94), rgba(229,244,250,.76)); }
    .orchestration-resource.is-model { top: 78%; left: 24%; border-radius: 11px 24px 24px 24px; }

    #architecture .orchestration-map.is-focus-task .orchestration-input,
    #architecture .orchestration-map.is-focus-resources .orchestration-resource,
    #architecture .orchestration-map.is-focus-feedback .orchestration-feedback,
    #architecture .orchestration-map.is-focus-adjustment .orchestration-feedback {
      border-color: rgba(42,102,169,.46);
      background: rgba(255,255,255,.94);
      box-shadow: 0 17px 38px rgba(31,83,136,.12), inset 0 1px 0 #fff;
    }

    #architecture .orchestration-map:is(.is-focus-orchestration,.is-focus-adjustment) .orchestration-core {
      border-color: rgba(42,102,169,.52);
      box-shadow: 0 22px 52px rgba(31,83,136,.18), 0 0 0 8px rgba(255,255,255,.6), inset 0 1px 0 #fff;
    }

    #architecture .orchestration-map.is-focus-task .orchestration-link.is-input,
    #architecture .orchestration-map.is-focus-resources .orchestration-link.is-resource,
    #architecture .orchestration-map.is-focus-resources .orchestration-link.is-branch,
    #architecture .orchestration-map.is-focus-orchestration .orchestration-link.is-resource,
    #architecture .orchestration-map.is-focus-adjustment .orchestration-link.is-execution,
    #architecture .orchestration-map.is-focus-feedback .orchestration-link.is-feedback {
      stroke: #286eaa;
      stroke-width: 2.4;
      opacity: 1;
    }

    #architecture .orchestration-map.is-focus-feedback .orchestration-feedback,
    #architecture .orchestration-map.is-focus-adjustment .orchestration-feedback { border-color: rgba(61,143,151,.56); }

    #architecture .system-map:not(.in) .orchestration-core,
    #architecture .system-map:not(.in) .orchestration-links,
    #architecture .system-map:not(.in) .orchestration-node { opacity: 0; }

    #architecture .system-map.in .orchestration-core { animation: orchestration-core-enter .65s cubic-bezier(.2,.75,.25,1) both; }
    #architecture .system-map.in .orchestration-links { animation: orchestration-lines-enter .85s ease .3s both; }
    #architecture .system-map.in .orchestration-input { animation: orchestration-node-enter .5s ease .7s both; }
    #architecture .system-map.in .orchestration-resource { animation: orchestration-node-enter .5s ease both; }
    #architecture .system-map.in .orchestration-resource.is-device { animation-delay: .9s; }
    #architecture .system-map.in .orchestration-resource.is-model { animation-delay: 1.02s; }
    #architecture .system-map.in .orchestration-resource.is-data { animation-delay: 1.14s; }
    #architecture .system-map.in .orchestration-feedback { animation: orchestration-node-enter .5s ease 1.36s both; }

    @keyframes orchestration-core-enter { from { opacity: 0; transform: translate(-50%,-50%) scale(.88); } to { opacity: 1; transform: translate(-50%,-50%) scale(1); } }
    @keyframes orchestration-lines-enter { from { opacity: 0; } to { opacity: 1; } }
    @keyframes orchestration-node-enter { from { opacity: 0; transform: translate(-50%,-44%); } to { opacity: 1; transform: translate(-50%,-50%); } }
    @keyframes orchestration-ring { 0%,100% { opacity: .5; transform: scale(.99); } 50% { opacity: .9; transform: scale(1.02); } }

    @media (max-width: 980px) {
      #architecture .orchestration-map { min-height: 600px; }
      #architecture .system-map { margin-top: -42px; }
      .orchestration-core { width: 158px; height: 158px; }
      .orchestration-core strong { font-size: 20px; }
      .orchestration-input { width: 194px; }
      .orchestration-feedback { width: 198px; }
      .orchestration-resource { width: 150px; }
      .orchestration-resource strong { font-size: 12px; }
    }

    @media (min-width: 721px) and (max-width: 820px) {
      .orchestration-resource.is-data { left: 74%; }
    }

    @media (max-width: 720px) {
      #architecture .orchestration-map {
        display: grid;
        grid-template-columns: repeat(3,minmax(0,1fr));
        align-items: center;
        justify-items: center;
        gap: 48px 8px;
        min-height: 0;
        padding: 10px 0 28px;
      }
      #architecture .system-map { margin-top: 0; }
      .orchestration-links { display: none; }
      .orchestration-node,
      .orchestration-core { position: static; top: auto; left: auto; transform: none; }
      .orchestration-input { grid-column: 1 / -1; width: min(100%,300px); }
      .orchestration-core { grid-column: 1 / -1; width: 162px; height: 162px; }
      .orchestration-resource { width: 100%; min-height: 84px; grid-template-columns: 1fr; gap: 5px; justify-items: center; padding: 10px 5px; text-align: center; }
      .orchestration-resource svg { width: 26px; height: 26px; }
      .orchestration-resource strong { font-size: 11px; }
      .orchestration-resource small { display: none; }
      .orchestration-feedback { grid-column: 1 / -1; width: min(100%,300px); }
      #architecture .workflow-timeline { overflow: visible; }
      #architecture .workflow-timeline ol { grid-template-columns: repeat(2,minmax(0,1fr)); min-width: 0; gap: 4px 8px; }
      #architecture .workflow-timeline li { justify-content: flex-start; min-height: 40px; padding: 6px 8px; }
      #architecture .workflow-timeline li::after { display: none; }
      #architecture .workflow-timeline li:last-child { grid-column: 1 / -1; }
      .orchestration-input::after,
      .orchestration-core::after,
      .orchestration-feedback::before {
        position: absolute;
        left: 50%;
        width: 1px;
        height: 31px;
        content: "";
        background: rgba(83,132,177,.4);
        transform: translateX(-50%);
      }
      .orchestration-input::after,
      .orchestration-core::after { top: calc(100% + 7px); }
      .orchestration-feedback::before { bottom: calc(100% + 8px); }
      #architecture .system-map.in .orchestration-core { animation: orchestration-mobile-enter .65s ease both; }
      #architecture .system-map.in .orchestration-node { animation: orchestration-mobile-enter .5s ease both; }
      #architecture .system-map.in .orchestration-resource.is-device { animation-delay: .8s; }
      #architecture .system-map.in .orchestration-resource.is-model { animation-delay: .92s; }
      #architecture .system-map.in .orchestration-resource.is-data { animation-delay: 1.04s; }
      #architecture .system-map.in .orchestration-feedback { animation-delay: 1.24s; }
    }

    @keyframes orchestration-mobile-enter { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

    @media (prefers-reduced-motion: reduce) {
      #architecture .system-map.in .orchestration-core,
      #architecture .system-map.in .orchestration-node,
      #architecture .system-map.in .orchestration-links,
      .orchestration-core-ring { opacity: 1; animation: none !important; }
      .orchestration-flow-dot { display: none; }
    }

    /* 首页标题层级：品牌主标题 > 章节标题 > 内容标题 > 英文标记。 */

#architecture .system-map { margin-top: 0; }
#architecture .orchestration-map { min-height: clamp(620px, 68vh, 720px); }
#architecture .workflow-timeline { margin-top: -8px; }
#architecture .workflow-timeline li {
  opacity: 1;
  transform: none;
  cursor: pointer;
}
#architecture .workflow-timeline.in li { animation: none; }
@media (max-width: 980px) {
  #architecture .system-map { margin-top: 0; }
}
@media (max-width: 720px) {
  #architecture.research-system-logic { padding-top: 64px; padding-bottom: 68px; }
  #architecture .orchestration-node,
  #architecture .orchestration-core { position: relative; top: auto; left: auto; transform: none; }
}
/* === End research system map === */

/* Related results stay discoverable when the section navigation is folded. */
.topic-hero-copy .topic-related-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
  padding: 8px 0;
  color: #fff;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.5;
  border-bottom: 1px solid rgba(255,255,255,.5);
}
.topic-hero-copy .topic-related-link:hover { border-bottom-color: #fff; }
.topic-hero-copy .topic-related-link:focus-visible { outline: 2px solid #fff; outline-offset: 5px; }