/* ============================================================
   光瞳科技官网 · 视觉系统 v8「光瞳中枢 · Living Console」
   概念：官网 = 一台运转中的机器。
   - 深空黑 + 冷银白 + 宝石红（贴公司 logo：金属漩涡 + 红瞳）
   - Hero 由 Canvas 粒子引擎实时演算（app.js），本文件只负责容器与 HUD
   - 繁华来自真实产品界面 + 多层 HUD 数据，不是装饰堆料
   - 动效：入场粒子聚合 / 滚动 reveal + 视差 / hover 激活 / 环境呼吸
   ============================================================ */

:root {
  /* 色板 */
  --void: #05070a;
  --void-2: #080b0f;
  --silver: #eceef2;
  --silver-2: rgba(236, 238, 242, .66);
  --silver-3: rgba(236, 238, 242, .58);
  --silver-4: rgba(236, 238, 242, .22);
  --gem: #c81e2e;
  --gem-hi: #ff5a62;
  --gem-dim: rgba(200, 30, 46, .14);
  --gem-line: rgba(200, 30, 46, .38);
  --line: rgba(236, 238, 242, .10);
  --line-2: rgba(236, 238, 242, .18);
  --glass: rgba(236, 238, 242, .03);
  --glass-2: rgba(236, 238, 242, .05);

  /* 字体 */
  --cn: "PingFang SC", "HarmonyOS Sans SC", MiSans, "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "JetBrains Mono", "Cascadia Code", Menlo, Consolas, "Liberation Mono", monospace;

  /* 圆角 */
  --r-sm: 6px; --r-md: 10px; --r-lg: 14px; --r-xl: 20px;

  /* 动效 */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-io: cubic-bezier(0.65, 0, 0.35, 1);
  --fast: 160ms; --base: 420ms; --slow: 800ms;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--void);
  color: var(--silver);
  font-family: var(--cn);
  font-size: 15px;
  line-height: 1.72;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
::selection { background: rgba(200, 30, 46, .35); color: var(--on-accent); }
:focus-visible { outline: 2px solid var(--gem-hi); outline-offset: 3px; border-radius: var(--r-sm); }

.wrap { max-width: 1280px; margin: 0 auto; padding: 0 40px; }

/* ---- 跳转主内容 ---- */
/* ---- 顶部滚动进度线 ---- */
.progress { position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 120; pointer-events: none; }
.progress i { display: block; height: 100%; background: var(--gem-hi); transform: scaleX(0); transform-origin: 0 50%; will-change: transform; }

.skip-link {
  position: fixed; left: 16px; top: -64px; z-index: 300;
  padding: 10px 18px;
  background: var(--gem); color: var(--on-accent);
  border-radius: var(--r-sm);
  font-size: 13px; font-weight: 700; text-decoration: none;
  transition: top 150ms var(--ease);
}
.skip-link:focus { top: 12px; }
#main:focus { outline: none; }

/* ============================================================
   氛围层：网格 + 顶部红晕 + 缓慢扫描线（纯 CSS，常驻）
   ============================================================ */
.ambient { position: fixed; inset: 0; pointer-events: none; z-index: 0; }
.ambient-grid {
  position: absolute; inset: 0;
  background:
    linear-gradient(rgba(236, 238, 242, .028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(236, 238, 242, .028) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 120% 80% at 50% 0%, #000 30%, transparent 85%);
  -webkit-mask-image: radial-gradient(ellipse 120% 80% at 50% 0%, #000 30%, transparent 85%);
}
.ambient-glow {
  position: absolute; inset: 0;
  background:
    radial-gradient(60rem 30rem at 14% -10%, rgba(200, 30, 46, .07), transparent 62%),
    radial-gradient(48rem 24rem at 92% -6%, rgba(200, 30, 46, .05), transparent 58%);
  animation: glow-breathe 14s ease-in-out infinite alternate;
}
@keyframes glow-breathe { from { opacity: .65; } to { opacity: 1; } }
.ambient-scan {
  position: absolute; left: 0; right: 0; height: 140px;
  background: linear-gradient(180deg, transparent, rgba(236, 238, 242, .022) 50%, transparent);
  animation: scan-drift 16s linear infinite;
}
@keyframes scan-drift { from { transform: translateY(-160px); } to { transform: translateY(110vh); } }

/* ============================================================
   顶栏
   ============================================================ */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background var(--fast), border-color var(--fast), backdrop-filter var(--fast);
}
.topbar.is-solid {
  background: rgba(5, 7, 10, .78);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
}
.topbar-inner {
  max-width: 1280px; margin: 0 auto; padding: 0 40px;
  height: 64px; display: flex; align-items: center; gap: 36px;
}
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; flex-shrink: 0; }
.brand-logo { width: 24px; height: 24px; flex-shrink: 0; padding: 3px; box-sizing: content-box; background: var(--silver); border-radius: var(--r-sm); }
.brand-name { font-size: 15.5px; font-weight: 900; letter-spacing: -.02em; }
.brand-sub {
  font-family: var(--mono); font-size: 9px;
  letter-spacing: .2em; color: var(--silver-3); padding-top: 3px;
}
.top-nav { display: flex; align-items: center; gap: 30px; margin-left: auto; }
.top-nav a {
  position: relative; font-size: 13.5px; color: var(--silver-2); text-decoration: none;
  padding: 13px 0; transition: color var(--fast);
}
.top-nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px;
  background: var(--gem); transform: scaleX(0); transform-origin: left;
  transition: transform var(--fast) var(--ease);
}
.top-nav a:hover { color: var(--silver); }
.top-nav a:hover::after { transform: scaleX(1); }
.nav-products {
  display: flex; align-items: center; gap: 18px;
  margin-left: 4px; padding-left: 20px;
  border-left: 1px solid var(--line);
}
.nav-products a {
  display: inline-flex; align-items: center; gap: 4px;
  font-family: var(--mono); font-size: 11px; letter-spacing: .04em;
  color: var(--silver-2); text-decoration: none;
  transition: color var(--dur-fast);
}
.nav-products a i { font-style: normal; font-size: 9px; color: var(--silver-3); transition: color var(--dur-fast); }
.nav-products a:hover { color: var(--on-accent); }
.nav-products a:hover i { color: var(--gem-hi); }

.top-cta {
  flex-shrink: 0; font-size: 13px; font-weight: 700; text-decoration: none;
  color: var(--silver); border: 1px solid var(--line-2); border-radius: var(--r-sm);
  padding: 9px 18px;
  transition: color var(--fast), border-color var(--fast), background var(--fast);
}
.top-cta:hover { color: var(--on-accent); border-color: var(--gem-line); background: var(--gem-dim); }

/* ============================================================
   Hero：粒子画布 + HUD + 主张语
   ============================================================ */
.hero {
  position: relative;
  min-height: 92svh;
  display: flex; flex-direction: column; justify-content: center;
  overflow: hidden;
}
.iris {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  width: 100%; height: 100%; display: block;
}
main, .site-foot { position: relative; z-index: 2; }
.iris-static {
  position: fixed; z-index: 1;
  left: 68%; top: 46%; transform: translate(-50%, -50%);
  width: min(46vmin, 420px); height: auto;
  opacity: .9; display: none;
  filter: drop-shadow(0 0 60px rgba(200, 30, 46, .35));
}

/* HUD 层 */
.hud { position: absolute; inset: 0; z-index: 3; pointer-events: none; font-family: var(--mono); }
.hud-item {
  position: absolute;
  font-size: 10px; letter-spacing: .16em; color: var(--silver-3);
  display: inline-flex; align-items: center; gap: 7px;
}
.hud-tl { top: 84px; left: 40px; }
.hud-tr { top: 84px; right: 40px; }
.hud-bl { bottom: 108px; left: 40px; }
.hud-br { bottom: 108px; right: 40px; }
.dot { width: 5px; height: 5px; border-radius: 50%; background: var(--gem-hi); flex-shrink: 0; animation: dot-pulse 2.4s ease-in-out infinite; }
@keyframes dot-pulse { 0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(232, 41, 58, .5); } 50% { opacity: .55; box-shadow: 0 0 0 5px rgba(232, 41, 58, 0); } }
.hud-corner { position: absolute; width: 22px; height: 22px; border: 1px solid var(--silver-4); }
.c-tl { top: 72px; left: 28px; border-right: 0; border-bottom: 0; }
.c-tr { top: 72px; right: 28px; border-left: 0; border-bottom: 0; }
.c-bl { bottom: 96px; left: 28px; border-right: 0; border-top: 0; }
.c-br { bottom: 96px; right: 28px; border-left: 0; border-top: 0; }

.hero-inner {
  position: relative; z-index: 4;
  max-width: 1280px; margin: 0 auto; padding: 104px 40px 96px;
  width: 100%;
}
.kicker {
  margin: 0 0 24px;
  font-family: var(--mono); font-size: 11px;
  letter-spacing: .22em; color: var(--silver-2);
  display: inline-flex; align-items: center; gap: 10px;
}
.kicker::before { content: ""; width: 22px; height: 1px; background: var(--gem); }
.hero-title {
  margin: 0;
  font-size: clamp(40px, 5.8vw, 88px);
  font-weight: 900; letter-spacing: -.045em; line-height: 1.08;
  color: var(--on-accent);
}
.hero-title em { font-style: normal; color: var(--gem-hi); }
.hero-sub {
  margin: 28px 0 0; max-width: 540px;
  font-size: 15px; line-height: 1.95; color: var(--silver-2);
}
.hero-cta { margin-top: 38px; display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: 52px; padding: 0 26px;
  font-size: 14.5px; font-weight: 700; letter-spacing: .02em;
  text-decoration: none; border-radius: var(--r-sm);
  transition: background var(--fast), color var(--fast), border-color var(--fast);
  will-change: transform;
}
.btn-gem { background: var(--gem); color: var(--on-accent); }
.btn-gem:hover { background: var(--gem-hi); }
.btn-ghost { border: 1px solid var(--line-2); color: var(--silver); }
.btn-ghost:hover { border-color: var(--gem-line); color: var(--on-accent); }
.b-arrow { font-style: normal; transition: transform var(--fast) var(--ease); }
.btn:hover .b-arrow { transform: translateX(4px); }

.scroll-cue {
  position: absolute; z-index: 4; left: 50%; bottom: 34px;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  text-decoration: none;
}
.scroll-cue-line {
  width: 1px; height: 44px;
  background: linear-gradient(180deg, transparent, var(--gem-hi));
  animation: cue-run 2.2s var(--ease-io) infinite;
  transform-origin: top;
}
@keyframes cue-run { 0% { transform: scaleY(0); opacity: 0; } 30% { opacity: 1; } 100% { transform: scaleY(1); opacity: 0; } }
.scroll-cue-text { font-family: var(--mono); font-size: 9px; letter-spacing: .24em; color: var(--silver-3); }

/* ============================================================
   区块通用
   ============================================================ */
.section { position: relative; padding: 76px 0; scroll-margin-top: 64px; }
.sec-head { max-width: 760px; margin-bottom: 44px; }
.mono-label {
  display: flex; align-items: center; gap: 10px;
  margin: 0 0 16px;
  font-family: var(--mono); font-size: 10.5px;
  letter-spacing: .2em; color: var(--silver-3);
}
.mono-label .sl-no { color: var(--gem-hi); font-weight: 700; }
.mono-label .sl-sep { color: var(--silver-4); }
.sec-title {
  margin: 0;
  font-size: clamp(30px, 3.8vw, 52px);
  font-weight: 900; letter-spacing: -.04em; line-height: 1.12;
}
.sec-lead { margin: 16px 0 0; font-size: 14.5px; color: var(--silver-2); }
.sec-title .ch { display: inline-block; opacity: 0; transform: translateY(18px); transition: opacity 480ms var(--ease), transform 480ms var(--ease); }
.reveal.in .sec-title .ch { opacity: 1; transform: none; }

/* ============================================================
   产品工位
   ============================================================ */
.station {
  display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr);
  gap: 56px; align-items: center;
  padding: 40px 0;
  border-top: 1px solid var(--line);
}
.station:first-of-type { border-top: 0; padding-top: 8px; }
.station-flip { grid-template-columns: minmax(0, .75fr) minmax(0, 1.25fr); }
.station-flip .station-visual { order: 2; }
.station-flip .station-info { order: 1; }

.station-visual { position: relative; }
.screen {
  position: relative; overflow: hidden;
  border: 1px solid var(--line-2); border-radius: var(--r-lg);
  background: var(--void-2);
  box-shadow: 0 24px 80px rgba(0, 0, 0, .55);
  transition: border-color var(--base), box-shadow var(--base), transform var(--base) var(--ease);
}
.station:hover .screen {
  border-color: var(--gem-line);
  box-shadow: 0 24px 80px rgba(0, 0, 0, .55), 0 0 0 1px var(--gem-dim), 0 0 60px rgba(200, 30, 46, .12);
}
.screen-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 11px 14px;
  border-bottom: 1px solid var(--line);
  background: rgba(236, 238, 242, .025);
}
.screen-bar i { width: 8px; height: 8px; border-radius: 50%; background: var(--silver-4); }
.screen-bar i:first-child { background: rgba(200, 30, 46, .55); }
.screen-url {
  margin-left: 10px;
  font-family: var(--mono); font-size: 10px; letter-spacing: .1em; color: var(--silver-3);
}
.screen-body { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
.station .screen { clip-path: inset(0 0 100% 0); }
.station.in .screen { clip-path: inset(0 0 0 0); }
.station .screen-body { transform: scale(1.06); transition: transform 1.2s var(--ease); }
.station.in .screen-body { transform: scale(1); }
/* 屏幕常驻微光扫过（像一块活着的屏） */
.screen-body::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 32%; z-index: 2; pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(236, 238, 242, .06) 50%, transparent);
  animation: screen-sweep 6.5s linear infinite;
}
@keyframes screen-sweep { from { transform: translateY(-110%); } to { transform: translateY(330%); } }
.screen-body picture { display: block; width: 100%; height: 100%; }
.screen-body img {
  width: 100%; height: 100%; object-fit: cover; object-position: top center;
  transition: transform 1.2s var(--ease);
}
.station:hover .screen-body img { transform: scale(1.02); }
.screen-video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: top center;
  opacity: 0; transition: opacity 600ms var(--ease);
}
.screen.has-video .screen-video { opacity: 1; }
.screen-glow {
  position: absolute; inset: 0; pointer-events: none;
  background: linear-gradient(180deg, transparent 62%, rgba(5, 7, 10, .42) 100%);
}
.station-chips { display: flex; gap: 8px; margin-top: 16px; }
.chip {
  font-family: var(--mono); font-size: 9.5px; letter-spacing: .14em;
  color: var(--silver-3); border: 1px solid var(--line); border-radius: var(--r-sm);
  padding: 4px 9px; background: var(--glass);
}
.chip-live { color: var(--silver-2); display: inline-flex; align-items: center; gap: 6px; }

.station-info { position: relative; }
.station-idx {
  font-family: var(--mono); font-size: 11px; letter-spacing: .2em;
  color: var(--gem-hi);
}
.station-name {
  margin: 14px 0 0;
  font-size: clamp(26px, 2.6vw, 38px);
  font-weight: 900; letter-spacing: -.035em; line-height: 1.15;
}
.name-cn { font-style: normal; font-size: .55em; color: var(--silver-2); margin-left: 6px; letter-spacing: 0; }
.station-tag { margin: 8px 0 0; font-size: 13px; color: var(--gem-hi); letter-spacing: .02em; }
.station-desc { margin: 16px 0 0; font-size: 14px; line-height: 1.9; color: var(--silver-2); max-width: 380px; }
.station-stats { display: flex; gap: 36px; margin: 28px 0 0; }
.station-stats dt {
  font-family: var(--mono); font-size: 9px; letter-spacing: .18em; color: var(--silver-3);
}
.station-stats dd {
  margin: 6px 0 0; font-family: var(--mono); font-size: 18px; font-weight: 700;
  color: var(--silver); font-variant-numeric: tabular-nums;
}
.station-cta { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; margin-top: 30px; }
.station-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: 46px; padding: 0 24px;
  font-size: 14px; font-weight: 700; letter-spacing: .02em;
  color: var(--on-accent); text-decoration: none;
  border: 1px solid var(--gem); border-radius: var(--r-sm);
  background: var(--gem-dim);
  transition: background var(--dur-fast), border-color var(--dur-fast), transform var(--dur-fast) var(--ease);
}
.station-btn i { font-style: normal; font-size: 12px; color: var(--gem-hi); transition: transform var(--dur-fast) var(--ease); }
.station-btn:hover { background: var(--gem); border-color: var(--gem); }
.station-btn:hover i { color: var(--on-accent); transform: translate(2px, -2px); }
.station-domain {
  font-family: var(--mono); font-size: 10.5px; letter-spacing: .06em; color: var(--silver-3);
}

/* ============================================================
   能力矩阵
   ============================================================ */
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; }
.cap {
  position: relative;
  background: var(--void);
  padding: 26px 26px 28px;
  transition: background var(--base);
}
.cap:hover { background: var(--glass-2); }
.cap::before {
  content: ""; position: absolute; left: 0; top: 0; width: 0; height: 2px;
  background: var(--gem); transition: width var(--base) var(--ease);
}
.cap:hover::before { width: 64px; }
.cap-idx { font-family: var(--mono); font-size: 10px; letter-spacing: .18em; color: var(--silver-3); }
.cap-ico {
  width: 26px; height: 26px; margin: 18px 0 0;
  color: var(--gem-hi);
  transition: transform var(--base) var(--ease), filter var(--base);
}
.cap:hover .cap-ico { transform: translateY(-2px); filter: drop-shadow(0 0 12px rgba(255, 90, 98, .45)); }
.cap-ico [stroke] { stroke-dasharray: 90; stroke-dashoffset: 0; }
.cap:hover .cap-ico [stroke] { animation: cap-draw 750ms var(--ease); }
@keyframes cap-draw { from { stroke-dashoffset: 90; } to { stroke-dashoffset: 0; } }
.cap-name { margin: 16px 0 0; font-size: 16.5px; font-weight: 900; letter-spacing: -.02em; }
.cap-desc { margin: 8px 0 0; font-size: 13px; line-height: 1.85; color: var(--silver-2); }

.live-strip {
  display: flex; flex-wrap: wrap; gap: 12px 44px;
  margin-top: 32px; padding: 18px 26px;
  border: 1px solid var(--line); border-radius: var(--r-lg);
  background: var(--glass);
  font-family: var(--mono); font-size: 11px; letter-spacing: .1em; color: var(--silver-3);
}
.live-item { display: inline-flex; align-items: baseline; gap: 9px; }
.live-item b { font-size: 17px; font-weight: 700; color: var(--silver); letter-spacing: -.01em; font-variant-numeric: tabular-nums; }
.live-status { margin-left: auto; color: var(--silver-2); }

/* ============================================================
   联系：终端面板
   ============================================================ */
.terminal {
  border: 1px solid var(--line-2); border-radius: var(--r-lg);
  background: rgba(8, 11, 15, .82);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(0, 0, 0, .5);
}
.term-bar {
  display: flex; align-items: center; gap: 14px;
  padding: 12px 16px; border-bottom: 1px solid var(--line);
  background: rgba(236, 238, 242, .025);
}
.term-dots { display: inline-flex; gap: 6px; }
.term-dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--silver-4); }
.term-dots i:first-child { background: rgba(200, 30, 46, .6); }
.term-title { font-family: var(--mono); font-size: 10.5px; letter-spacing: .1em; color: var(--silver-2); }
.term-size { margin-left: auto; font-family: var(--mono); font-size: 9.5px; letter-spacing: .12em; color: var(--silver-3); }
.term-body { padding: 24px 28px 26px; }
.term-line { margin: 0; font-family: var(--mono); font-size: 13.5px; color: var(--silver); }
.term-prompt { color: var(--gem-hi); margin-right: 10px; }
.term-out { margin: 10px 0 26px; font-size: 13.5px; color: var(--silver-2); padding-left: 26px; }
.term-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 260px)); gap: 16px; }
.qr-card {
  padding: 26px 22px; text-align: center;
  border: 1px solid var(--line); border-radius: var(--r-md);
  background: var(--glass);
  transition: border-color var(--fast), background var(--fast);
}
.qr-card:hover { border-color: var(--gem-line); background: var(--glass-2); }
.qr-frame { position: relative; width: 168px; height: 168px; margin: 0 auto; border-radius: var(--r-sm); overflow: hidden; }
.qr-frame::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 34%;
  background: linear-gradient(180deg, transparent, rgba(255, 90, 98, .26) 50%, transparent);
  opacity: 0; pointer-events: none;
}
.qr-card:hover .qr-frame::after { opacity: 1; animation: qr-scan 1.8s linear infinite; }
@keyframes qr-scan { from { transform: translateY(-100%); } to { transform: translateY(300%); } }
.qr-img {
  width: 168px; height: 168px;
  border-radius: var(--r-sm); background: var(--on-accent); padding: 8px;
}
.qr-name { margin: 18px 0 0; font-size: 15px; font-weight: 900; letter-spacing: -.01em; }
.qr-desc { margin: 6px 0 0; font-family: var(--mono); font-size: 9.5px; letter-spacing: .08em; color: var(--silver-3); }
.term-line-end { margin-top: 26px; color: var(--silver-3); }
.term-cursor {
  display: inline-block; width: 8px; height: 15px;
  background: var(--gem-hi); vertical-align: -2px;
  animation: blink 1.1s steps(1) infinite;
}
@keyframes blink { 0%, 49% { opacity: 1; } 50%, 100% { opacity: 0; } }

/* ============================================================
   页脚
   ============================================================ */
.site-foot { position: relative; z-index: 2; border-top: 1px solid var(--line); padding: 40px 0 28px; }
.foot-inner { display: flex; flex-direction: column; gap: 22px; }
.foot-top { display: flex; align-items: center; gap: 48px; flex-wrap: wrap; }
.foot-brand { display: flex; align-items: center; gap: 12px; }
.foot-brand img { width: 26px; height: 26px; padding: 3px; box-sizing: content-box; background: var(--silver); border-radius: var(--r-sm); }
.foot-brand span { font-size: 15px; font-weight: 900; letter-spacing: -.02em; }
.foot-brand em { font-style: normal; font-family: var(--mono); font-size: 9px; letter-spacing: .2em; color: var(--silver-3); }
.foot-nav { display: flex; gap: 26px; }
.foot-nav a { font-size: 13px; color: var(--silver-2); text-decoration: none; padding: 13px 0; transition: color var(--fast); }
.foot-nav a:hover { color: var(--gem-hi); }
.foot-links { display: flex; gap: 22px; margin-left: auto; flex-wrap: wrap; }
.foot-links a { font-family: var(--mono); font-size: 10.5px; letter-spacing: .05em; color: var(--silver-3); text-decoration: none; padding: 15px 0; transition: color var(--fast); }
.foot-links a:hover { color: var(--gem-hi); }
.foot-legal {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  padding-top: 20px; border-top: 1px solid var(--line);
  font-family: var(--mono); font-size: 10px; letter-spacing: .04em; color: var(--silver-3);
}
.foot-legal a { color: var(--silver-3); text-decoration: none; padding: 7px 0; transition: color var(--fast); }
.foot-legal a:hover { color: var(--gem-hi); }
.gov-link { display: inline-flex; align-items: center; gap: 5px; }
.gov-badge { width: 12px; height: 12px; color: var(--gem-hi); flex-shrink: 0; }
.foot-copy { margin-left: auto; }

.noscript-note {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 200;
  padding: 10px 20px; text-align: center;
  background: var(--void-2); border-top: 1px solid var(--line);
  font-size: 12px; color: var(--silver-2);
}

/* ============================================================
   入场动效
   ============================================================ */
html.js .reveal { opacity: 0; transform: translateY(16px); }
html.js .reveal.in {
  opacity: 1; transform: none;
  transition: opacity var(--base) var(--ease), transform var(--base) var(--ease);
}
.hero-inner .reveal:nth-child(1) { transition-delay: 120ms; }
.hero-inner .reveal:nth-child(2) { transition-delay: 240ms; }
.hero-inner .reveal:nth-child(3) { transition-delay: 380ms; }
.hero-inner .reveal:nth-child(4) { transition-delay: 520ms; }
.scroll-cue { animation: fade-in 800ms var(--ease) 1.1s both; }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 980px) {
  .nav-products { display: none; }
}
@media (max-width: 1024px) {
  .station { grid-template-columns: 1fr; gap: 28px; padding: 36px 0; }
  .station-flip .station-visual { order: 0; }
  .station-desc { max-width: 560px; }
  .cap-grid { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 96px 0; }
}
@media (max-width: 760px) {
  .wrap { padding: 0 20px; }
  .topbar-inner { padding: 0 20px; height: 58px; gap: 14px; }
  .brand-sub { display: none; }
  .nav-products { display: none; }
  .top-nav { gap: 18px; }
  .top-nav a { font-size: 12.5px; }
  .top-cta { margin-left: auto; padding: 0 14px; min-height: 44px; display: inline-flex; align-items: center; font-size: 12.5px; }
  .brand { padding: 9px 0; }
  .hero-inner { padding: 104px 20px 120px; }
  .hud-tl, .hud-tr { top: 74px; }
  .hud-tl { left: 20px; } .hud-tr { right: 20px; }
  .hud-bl, .hud-br { bottom: 96px; }
  .hud-bl { left: 20px; } .hud-br { right: 20px; }
  .hud-corner { display: none; }
  .hero-title { font-size: clamp(34px, 11vw, 56px); }
  .iris-static { left: 50%; top: 24%; width: min(52vmin, 260px); }
  .btn { height: 48px; padding: 0 22px; }
  .section { padding: 56px 0; }
  .sec-head { margin-bottom: 32px; }
  .cap-grid { grid-template-columns: 1fr; }
  .live-strip { gap: 12px 24px; }
  .live-status { margin-left: 0; }
  .term-body { padding: 22px 18px 26px; }
  .term-cards { grid-template-columns: 1fr; }
  .station-stats { gap: 26px; }
  .foot-top { gap: 22px; }
  .foot-links { margin-left: 0; }
  .foot-copy { margin-left: 0; width: 100%; }
}

/* ---- 减弱动态：粒子引擎降级为静态 logo，其它动效关闭 ---- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.js .reveal { opacity: 1; transform: none; transition: none; }
  .iris { display: none; }
  .iris-static { display: block; }
  .ambient-glow, .ambient-scan, .dot, .scroll-cue-line, .term-cursor { animation: none; }
  .scroll-cue { animation: none; }
  .screen-body img, .screen { transition: none; }
  .station .screen { clip-path: none; }
  .station .screen-body { transform: none; }
  .screen-body::after, .qr-frame::after { display: none; }
  .cap-ico [stroke] { animation: none !important; }
  .sec-title .ch { opacity: 1; transform: none; transition: none; }
  .progress { display: none; }
}