/* ============================================================
   Stellar Dimension — 恒星维度 · 全新视觉系统
   Deep-Space Observatory / 深空天文台
   ============================================================ */

/* ---------- 字体 ---------- */
@font-face {
  font-family: "Space Grotesk";
  src: url("../fonts/space-grotesk-400.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Space Grotesk";
  src: url("../fonts/space-grotesk-500.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}
@font-face {
  font-family: "Space Grotesk";
  src: url("../fonts/space-grotesk-600.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}
@font-face {
  font-family: "Space Grotesk";
  src: url("../fonts/space-grotesk-700.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-400.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-500.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("../fonts/jetbrains-mono-600.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}

/* ---------- 设计令牌 ---------- */
:root {
  --bg: #05060b;
  --bg-soft: #080a12;
  --bg-card: rgba(255, 255, 255, 0.035);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --line: rgba(255, 255, 255, 0.09);
  --line-soft: rgba(255, 255, 255, 0.055);
  --text: #eef1f8;
  --text-2: #a6aebe;
  --text-3: #6d7587;
  --violet: #8b7cff;
  --cyan: #55d6e0;
  --magenta: #ef6aa8;
  --gold: #f2b25c;
  --grad-main: linear-gradient(120deg, #8b7cff 0%, #55d6e0 100%);
  --grad-hero: linear-gradient(115deg, #fff 0%, #b9c2ff 42%, #7fd9e2 100%);
  --font-cn: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Source Han Sans SC", "Microsoft YaHei UI", "Microsoft YaHei", sans-serif;
  --font-en: "Space Grotesk", "Inter", "SF Pro Display", "Segoe UI", var(--font-cn);
  --font-mono: "JetBrains Mono", "SFMono-Regular", "Cascadia Code", Consolas, monospace;
  --radius: 18px;
  --radius-sm: 12px;
  --nav-h: 62px;
  --nav-top: 14px;
  --container: 1200px;
  --dur: 0.45s;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  /* 液态玻璃 */
  --glass-bg: linear-gradient(165deg, rgba(255, 255, 255, 0.085), rgba(255, 255, 255, 0.028) 42%, rgba(255, 255, 255, 0.05));
  --glass-bg-strong: linear-gradient(165deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04));
  --glass-line: rgba(255, 255, 255, 0.14);
  --glass-line-soft: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 24px 60px -18px rgba(0, 0, 0, 0.65), 0 4px 18px -6px rgba(0, 0, 0, 0.4);
  --glass-highlight: inset 0 1px 0 rgba(255, 255, 255, 0.12), inset 0 -1px 0 rgba(255, 255, 255, 0.03);
}

/* ---------- 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-top) + var(--nav-h) + 26px);
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
body::before {
  /* 全局细颗粒噪点，提升质感 */
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9998;
  pointer-events: none;
  opacity: 0.028;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}
::selection {
  background: rgba(139, 124, 255, 0.35);
  color: #fff;
}
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb {
  background: #23283788;
  border-radius: 8px;
  border: 2px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover { background: #333a4d; }

img, svg { display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { padding: 0; margin: 0; list-style: none; }
h1, h2, h3, h4, p { margin: 0; }

/* ---------- 工具类 ---------- */
.container {
  width: min(var(--container), 100% - 48px);
  margin-inline: auto;
}
.section { padding: 110px 0; position: relative; }
.section--tight { padding: 72px 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-2);
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: linear-gradient(90deg, var(--violet), var(--cyan));
}
.eyebrow--center::after {
  content: "";
  width: 26px;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
}

.display-en {
  font-family: var(--font-en);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
}
.grad-text {
  background: var(--grad-hero);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.mono { font-family: var(--font-mono); }
.muted { color: var(--text-2); }
.faint { color: var(--text-3); }

/* 区块标题 */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 56px;
}
.section-head .title {
  font-size: clamp(28px, 3.6vw, 44px);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.2;
  margin-top: 14px;
}
.section-head .sub {
  max-width: 460px;
  color: var(--text-2);
  font-size: 15px;
}
.section-head .en {
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-3);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-cn);
  cursor: pointer;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), background 0.3s, border-color 0.3s, color 0.3s;
  border: 1px solid transparent;
  white-space: nowrap;
  position: relative;
}
.btn svg { width: 17px; height: 17px; flex: none; }
.btn--primary {
  background: linear-gradient(180deg, #8b7cff, #7563f2);
  color: #0b0a16;
  box-shadow: 0 10px 26px -10px rgba(120, 105, 255, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px -10px rgba(120, 105, 255, 0.65), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}
.btn--ghost {
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.03));
  border-color: var(--glass-line-soft);
  color: var(--text);
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  box-shadow: var(--glass-highlight);
}
.btn--ghost:hover {
  border-color: rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-2px);
}
.btn--sm { padding: 9px 18px; font-size: 13.5px; }
.btn--block { width: 100%; }
.btn .icon-arr { transition: transform 0.3s var(--ease); }
.btn:hover .icon-arr { transform: translateX(4px); }

/* 标签芯片 */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--glass-line-soft);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.025));
  backdrop-filter: blur(10px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
  color: var(--text-2);
  font-size: 12.5px;
  letter-spacing: 0.04em;
}
.chip svg { width: 13px; height: 13px; }
.chip--tone-a { border-color: rgba(139, 124, 255, 0.35); color: #b9adff; background: rgba(139, 124, 255, 0.08); }
.chip--tone-c { border-color: rgba(85, 214, 224, 0.35); color: #8ee7ee; background: rgba(85, 214, 224, 0.08); }
.chip--tone-g { border-color: rgba(242, 178, 92, 0.35); color: #f4c98d; background: rgba(242, 178, 92, 0.08); }
.chip--tone-m { border-color: rgba(239, 106, 168, 0.35); color: #f5a2c8; background: rgba(239, 106, 168, 0.08); }
.chip--mono { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em; }

/* ---------- 导航：浮岛（完整胶囊，DeepSeek 式「滚动浮现」） ----------
   位置恒定不动；顶部时完全透明隐形，
   滚动后浮现玻璃材质（背景/描边/毛玻璃 0.35s 过渡），回顶隐去。 */
.nav {
  position: fixed;
  top: var(--nav-top);
  left: 50%;
  translate: -50% 0;
  z-index: 1000;
  width: min(calc(var(--container) + 24px), calc(100% - 32px));
  height: var(--nav-h);
  display: flex;
  align-items: center;
  border-radius: 999px;
  border: 1px solid transparent;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  transition: background-color 0.35s, border-color 0.35s, backdrop-filter 0.35s, box-shadow 0.35s;
}
.nav--scrolled {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(16px) saturate(1.3);
  -webkit-backdrop-filter: blur(16px) saturate(1.3);
  box-shadow: 0 14px 34px -16px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  padding: 0 12px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 16.5px;
  letter-spacing: 0.01em;
}
.brand__logo {
  width: auto;
  height: 32px;
  flex: none;
  border-radius: 8px;
  object-fit: contain;
  display: block;
  transition: transform 0.35s var(--ease);
}
.brand:hover .brand__logo { transform: scale(1.07) rotate(-3deg); }
.brand svg { width: 32px; height: 32px; color: var(--violet); flex: none; display: none; }
.brand .brand__cn { font-size: 16.5px; }
.brand .brand__en {
  font-family: var(--font-en);
  font-size: 11.5px;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-top: 1px;
}
/* 浮岛导航里独立的英文 wordmark */
.nav .brand__en {
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--text);
  font-weight: 500;
  margin-top: 0;
  white-space: nowrap;
}
.brand--col { flex-direction: column; align-items: flex-start; gap: 6px; }
.nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}
.nav__links a {
  padding: 8px 15px;
  font-size: 14.5px;
  color: var(--text-2);
  border-radius: 10px;
  transition: color 0.25s;
  position: relative;
}
.nav__links a:hover { color: var(--text); }
.nav__links a.is-active { color: var(--text); }
/* 动态下划线：悬停淡入拉长，选中保持 */
.nav__links a::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 3px;
  transform: translateX(-50%) scaleX(0.35);
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: var(--violet);
  opacity: 0;
  transition: opacity 0.3s, transform 0.35s var(--ease);
}
.nav__links a:hover::after { opacity: 0.55; transform: translateX(-50%) scaleX(1); }
.nav__links a.is-active::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 3px;
  transform: translateX(-50%) scaleX(1);
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: var(--violet);
  opacity: 1;
}
.nav__cta { display: flex; align-items: center; gap: 12px; }
.nav__burger {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.nav__burger span {
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition: transform 0.3s, opacity 0.3s;
}
.nav__burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.is-open span:nth-child(2) { opacity: 0; }
.nav__burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动端抽屉 */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(3, 4, 8, 0.45);
  backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s, visibility 0.35s;
  display: flex;
  align-items: flex-end;
}
.drawer.is-open { opacity: 1; visibility: visible; }
.drawer__panel {
  width: 100%;
  border: 1px solid var(--glass-line-soft);
  background: linear-gradient(170deg, rgba(28, 31, 47, 0.82), rgba(12, 14, 24, 0.86));
  backdrop-filter: blur(26px) saturate(1.5);
  -webkit-backdrop-filter: blur(26px) saturate(1.5);
  border-radius: 26px;
  box-shadow: var(--glass-highlight), 0 -18px 50px -18px rgba(0, 0, 0, 0.7), var(--glass-shadow);
  margin: 0 12px calc(12px + env(safe-area-inset-bottom));
  padding: 22px 20px calc(26px + env(safe-area-inset-bottom));
  transform: translateY(36px);
  transition: transform 0.45s var(--ease);
  position: relative;
}
.drawer__panel::before {
  /* 抽屉顶部抓取条 */
  content: "";
  position: absolute;
  top: 8px;
  left: 50%;
  transform: translateX(-50%);
  width: 42px;
  height: 4px;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.18);
}
.drawer.is-open .drawer__panel { transform: none; }
.drawer__panel a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 8px;
  font-size: 17px;
  font-weight: 600;
  border-bottom: 1px solid var(--line-soft);
  border-radius: 10px;
  transition: background 0.25s;
  min-height: 52px;
}
.drawer__panel a:active { background: rgba(255, 255, 255, 0.06); }
.drawer__panel a span:last-child { color: var(--text-3); font-family: var(--font-mono); font-size: 12px; }
.drawer__cta { margin-top: 20px; }

/* ---------- 页脚 ---------- */
.footer {
  border-top: 1px solid var(--line-soft);
  background: linear-gradient(180deg, transparent, rgba(139, 124, 255, 0.04));
  padding: 76px 0 40px;
  position: relative;
  overflow: hidden;
}
.footer::before {
  content: "";
  position: absolute;
  top: -220px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 420px;
  background: radial-gradient(ellipse at center, rgba(139, 124, 255, 0.14), transparent 65%);
  pointer-events: none;
}
.footer::after {
  /* 页脚顶部的玻璃接缝高光 */
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(139, 124, 255, 0.35), rgba(85, 214, 224, 0.3), transparent);
  pointer-events: none;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
  position: relative;
}
.footer__about p { color: var(--text-2); font-size: 14px; max-width: 300px; margin-top: 16px; }
.footer__col h4 {
  font-size: 13px;
  font-family: var(--font-mono);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 18px;
  font-weight: 500;
}
.footer__col a {
  display: block;
  color: var(--text-2);
  font-size: 14.5px;
  padding: 5px 0;
  transition: color 0.25s, transform 0.25s;
}
.footer__col a:hover { color: var(--text); transform: translateX(4px); }
.footer__contact a {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  font-size: 14px;
  font-family: var(--font-mono);
  transition: border-color 0.3s, background 0.3s;
}
.footer__contact a:hover { border-color: rgba(139, 124, 255, 0.5); background: rgba(139, 124, 255, 0.08); }
.footer__contact a svg { width: 16px; height: 16px; color: var(--violet); }
.footer__bottom {
  margin-top: 56px;
  padding-top: 26px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  position: relative;
  color: var(--text-3);
  font-size: 12.5px;
}
.footer__beian { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.footer__beian a { color: var(--text-3); transition: color 0.25s; }
.footer__beian a:hover { color: var(--text-2); }
.footer__beian .sep { opacity: 0.5; }
.footer__beian .beian-logo {
  display: inline-block;
  width: 15px;
  height: 16px;
  object-fit: contain;
  vertical-align: -3px;
  margin-right: 3px;
}

/* ---------- 星空 & 极光背景 ---------- */
.starfield {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.starfield canvas { width: 100%; height: 100%; }

/* ---------- Hero 交互背景（DeepSeek Harness 式光标场） ---------- */
.hero-fx {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}
.hero-fx canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-fx__spot {
  position: absolute;
  top: 0;
  left: 0;
  width: 760px;
  height: 760px;
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(139, 124, 255, 0.22), rgba(85, 214, 224, 0.07) 44%, transparent 66%);
  mix-blend-mode: screen;
  will-change: transform;
  opacity: 0;
  transition: opacity 0.9s ease;
}
.hero-fx.is-hot .hero-fx__spot { opacity: 1; }
.hero .aurora {
  z-index: 0;
  will-change: transform;
}
.hero__inner { z-index: 2; }
.aurora {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}
.aurora__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.5;
  will-change: transform;
}
.aurora__blob--violet {
  width: 620px; height: 620px;
  background: radial-gradient(circle, rgba(99, 82, 255, 0.3), transparent 65%);
  top: -180px; left: 8%;
  animation: drift1 26s ease-in-out infinite alternate;
}
.aurora__blob--cyan {
  width: 540px; height: 540px;
  background: radial-gradient(circle, rgba(45, 180, 210, 0.22), transparent 65%);
  top: 10%; right: -120px;
  animation: drift2 32s ease-in-out infinite alternate;
}
.aurora__blob--magenta {
  width: 460px; height: 460px;
  background: radial-gradient(circle, rgba(220, 80, 160, 0.12), transparent 65%);
  bottom: -160px; left: 30%;
  animation: drift3 38s ease-in-out infinite alternate;
}
@keyframes drift1 { to { transform: translate(90px, 60px) scale(1.15); } }
@keyframes drift2 { to { transform: translate(-70px, 90px) scale(1.1); } }
@keyframes drift3 { to { transform: translate(60px, -70px) scale(1.2); } }

/* ---------- 进入动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  transition-delay: var(--d, 0s);
}
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .aurora__blob { animation: none; }
}

/* ---------- 卡片 ---------- */
.card {
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  box-shadow: 0 14px 36px -16px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.07);
  overflow: hidden;
  transition: transform 0.35s var(--ease), border-color 0.3s, box-shadow 0.35s;
}
.card:hover {
  border-color: rgba(255, 255, 255, 0.18);
  transform: translateY(-3px);
  box-shadow: 0 22px 48px -18px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}
.card:hover::after { opacity: 1; }

/* ---------- 首页 Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-top) + var(--nav-h) + 42px) 0 80px;
  overflow: hidden;
}
.hero__glow {
  position: absolute;
  top: 40%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 900px;
  height: 560px;
  background: radial-gradient(ellipse at center, rgba(100, 90, 255, 0.07), transparent 62%);
  pointer-events: none;
}
.hero__inner { position: relative; z-index: 2; }
.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 9px 18px;
  border: 1px solid var(--glass-line-soft);
  border-radius: 999px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.03));
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  box-shadow: var(--glass-highlight), 0 12px 30px -12px rgba(0, 0, 0, 0.5);
  font-size: 13px;
  color: var(--text-2);
  margin-bottom: 34px;
  letter-spacing: 0.06em;
}
.hero__eyebrow .pulse {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan);
  animation: pulse 2.2s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: 0.35; } }
.hero__title {
  font-size: clamp(42px, 6.4vw, 84px);
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.28;
  font-family: var(--font-cn);
}
.hero__title .hero__line { display: block; }
.hero__title .hero__line--1 { color: var(--text); }
.hero__title .hero__line--2 {
  display: flex;
  align-items: center;
  gap: 0.4em;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: rgba(238, 241, 248, 0.94);
  margin-top: 0.08em;
}
.hero__title .hero__line--2 i {
  width: 0.5em;
  height: 2px;
  border-radius: 2px;
  background: var(--violet);
  flex: none;
}
.hero__title .hero__sub_en {
  display: none;
}
.hero__sub {
  margin-top: 28px;
  max-width: 620px;
  color: var(--text-2);
  font-size: clamp(15.5px, 1.6vw, 18px);
  line-height: 1.9;
}
.hero__sub strong { color: var(--text); font-weight: 600; }
.hero__cta {
  display: flex;
  gap: 14px;
  margin-top: 40px;
  flex-wrap: wrap;
}
.hero__meta {
  margin-top: 64px;
  display: flex;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
  color: var(--text-3);
  font-size: 13px;
  letter-spacing: 0.14em;
  font-family: var(--font-mono);
}
.hero__meta span { display: inline-flex; align-items: center; gap: 9px; }
.hero__meta svg { width: 14px; height: 14px; color: var(--violet); }

/* 滚动提示 */
.scroll-hint {
  position: absolute;
  bottom: 34px;
  left: 0;
  right: 0;
  margin-inline: auto;
  width: fit-content;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--text-3);
  font-size: 11px;
  font-family: var(--font-mono);
  letter-spacing: 0.3em;
}
.scroll-hint .line {
  width: 1px;
  height: 46px;
  background: linear-gradient(180deg, var(--line), transparent);
  position: relative;
  overflow: hidden;
}
.scroll-hint .line::after {
  content: "";
  position: absolute;
  top: -50%;
  left: 0;
  width: 100%;
  height: 50%;
  background: linear-gradient(180deg, transparent, var(--cyan));
  animation: scrollline 2.2s ease-in-out infinite;
}
@keyframes scrollline { to { top: 100%; } }

/* 首页数字带 */
.stats {
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, 0.015);
}
.stats__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line-soft);
}
.stats__item {
  background: linear-gradient(165deg, rgba(6, 8, 14, 0.9), rgba(10, 12, 20, 0.86));
  padding: 40px 26px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
}
.stats__item::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 4px;
  background: radial-gradient(280px circle at 30% 0%, rgba(139, 124, 255, 0.08), transparent 60%);
  pointer-events: none;
}
.stats__num {
  font-family: var(--font-en);
  font-size: clamp(30px, 3.4vw, 46px);
  font-weight: 700;
  letter-spacing: -0.02em;
  background: var(--grad-main);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stats__num .suffix { font-size: 0.55em; }
.stats__label { color: var(--text-2); font-size: 13.5px; letter-spacing: 0.08em; }
.stats__item .en {
  position: absolute;
  top: 16px;
  right: 18px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.26em;
  color: var(--text-3);
  opacity: 0.8;
}

/* ---------- 品牌宣言 ---------- */
.manifesto {
  text-align: center;
  position: relative;
}
.manifesto__text {
  max-width: 960px;
  margin: 36px auto 0;
  font-size: clamp(22px, 3.2vw, 38px);
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: 0.01em;
}
.manifesto__text em {
  font-style: normal;
  background: var(--grad-main);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.manifesto__en {
  margin-top: 30px;
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  color: var(--text-3);
}

/* ---------- 旗舰产品 ---------- */
.feature {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 72px;
  align-items: center;
  padding: 104px 0;
  position: relative;
}
.feature:nth-child(even) { direction: rtl; }
.feature:nth-child(even) > * { direction: ltr; }
.feature__index {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.3em;
  color: var(--text-3);
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
}
.feature__index::after { content: ""; width: 60px; height: 1px; background: var(--line); }
.feature__title {
  font-size: clamp(32px, 4vw, 52px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.feature__title .en-l {
  display: block;
  font-family: var(--font-en);
  font-size: 0.34em;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-top: 14px;
}
.feature__desc {
  margin-top: 24px;
  color: var(--text-2);
  font-size: 16px;
  line-height: 2;
  max-width: 500px;
}
.feature__tags { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 26px; }
.feature__cta { margin-top: 36px; }

/* 旗舰视觉组件 */
.feature__visual { position: relative; }

/* 模型路由面板（维知旗舰视觉） */
.hub {
  max-width: 460px;
  margin-inline: auto;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  box-shadow: 0 22px 56px -22px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  overflow: hidden;
}
.hub__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  font-size: 13px;
  color: var(--text-2);
  letter-spacing: 0.04em;
}
.hub__bar .dots { display: flex; gap: 5px; }
.hub__bar .dots i { width: 8px; height: 8px; border-radius: 50%; background: rgba(255, 255, 255, 0.16); }
.hub__bar .tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-3);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 3px 10px;
  border-radius: 99px;
}
.hub__rows { padding: 4px 0; }
.hub__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.hub__row:last-child { border-bottom: none; }
.hub__row .model {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.01em;
}
.hub__row .model i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--violet);
  opacity: 0.65;
  flex: none;
}
.hub__row--2 .model i { background: var(--cyan); }
.hub__row--3 .model i { background: var(--gold); }
.hub__row .desc {
  font-size: 12.5px;
  color: var(--text-3);
  text-align: right;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.hub__foot {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 11px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.025);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--text-3);
}
.hub__foot::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #6ee7b7;
  opacity: 0.8;
  flex: none;
}


/* 传输管道视觉 */
.pipe {
  position: relative;
  max-width: 460px;
  margin-inline: auto;
  padding: 46px 30px;
  border: 1px solid var(--glass-line-soft);
  border-radius: 26px;
  background: var(--glass-bg-strong);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  box-shadow: var(--glass-highlight), var(--glass-shadow);
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.pipe__stations {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.pipe__station {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-size: 12.5px;
  color: var(--text-2);
}
.pipe__station .ico {
  width: 52px; height: 52px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--violet);
}
.pipe__station .ico svg { width: 24px; height: 24px; }
.pipe__station--b .ico { color: var(--cyan); }
.pipe__beam {
  flex: 1;
  position: relative;
  display: flex;
  justify-content: center;
}
.pipe__beam .rail { position: absolute; top: 50%; left: 0; right: 0; height: 1px; background: var(--line); }
.pipe__beam .rail--glow {
  background: linear-gradient(90deg, transparent, rgba(85, 214, 224, 0.7), transparent);
  height: 2px;
  animation: beam 2.4s ease-in-out infinite;
}
@keyframes beam {
  0% { transform: translateX(-60%); opacity: 0; }
  30% { opacity: 1; }
  100% { transform: translateX(60%); opacity: 0; }
}
.pipe__packet {
  width: 56px; height: 56px;
  border-radius: 18px;
  background: var(--grad-main);
  display: grid;
  place-items: center;
  color: #05060b;
  box-shadow: 0 10px 34px rgba(110, 110, 255, 0.5);
  position: relative;
  animation: float 4.5s ease-in-out infinite;
}
.pipe__packet svg { width: 26px; height: 26px; }
@keyframes float { 50% { transform: translateY(-10px); } }
.pipe__progress { display: flex; flex-direction: column; gap: 10px; }
.pipe__progress .head { display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 12px; color: var(--text-2); }
.pipe__progress .track { height: 6px; border-radius: 99px; background: rgba(255, 255, 255, 0.06); overflow: hidden; }
.pipe__progress .fill {
  height: 100%;
  width: 78%;
  border-radius: 99px;
  background: linear-gradient(90deg, #8b7cff, #55d6e0);
  animation: fillmove 3.2s ease-in-out infinite alternate;
  position: relative;
}
.pipe__progress .fill::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
  animation: shine 1.6s linear infinite;
}
@keyframes fillmove { to { width: 92%; } }
@keyframes shine { from { transform: translateX(-100%); } to { transform: translateX(100%); } }

/* ---------- 核心优势 ---------- */
.tech__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.tech__card { padding: 38px 30px; }
.tech__card .ico {
  width: 54px; height: 54px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: rgba(139, 124, 255, 0.08);
  color: var(--violet);
  margin-bottom: 24px;
}
.tech__card .ico svg { width: 26px; height: 26px; }
.tech__card--c .ico { background: rgba(85, 214, 224, 0.08); color: var(--cyan); }
.tech__card--g .ico { background: rgba(242, 178, 92, 0.08); color: var(--gold); }
.tech__card h3 { font-size: 21px; font-weight: 700; letter-spacing: -0.01em; }
.tech__card .en {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-top: 8px;
}
.tech__card p { margin-top: 14px; color: var(--text-2); font-size: 14.5px; line-height: 1.9; }

/* ---------- 首页产品带 ---------- */
.eco { position: relative; }
.eco__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.eco__card { padding: 28px 26px; }
.eco__card .row { display: flex; align-items: center; justify-content: space-between; }
.eco__card .ico {
  width: 46px; height: 46px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-2);
  display: none; /* 产品带去掉图标，纯文字排版 */
}
.eco__card .ico svg { width: 22px; height: 22px; }
.eco__card .arr {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  color: var(--text-3);
  transition: all 0.35s var(--ease);
}
.eco__card .arr svg { width: 16px; height: 16px; }
.eco__card:hover .arr {
  background: var(--grad-main);
  border-color: transparent;
  color: #05060b;
  transform: rotate(-45deg);
}
.eco__card h3 { font-size: 18.5px; font-weight: 700; margin-top: 20px; }
.eco__card .en {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-top: 3px;
}
.eco__card p { margin-top: 12px; color: var(--text-2); font-size: 13.5px; line-height: 1.85; }
.eco__more { margin-top: 40px; text-align: center; }

/* ---------- CTA 带 ---------- */
.cta-band {
  position: relative;
  text-align: center;
  padding: 130px 0;
  overflow: hidden;
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 100% at 50% 100%, rgba(139, 124, 255, 0.1), transparent 70%),
    linear-gradient(180deg, transparent, rgba(139, 124, 255, 0.03));
}
.cta-band__title {
  font-size: clamp(32px, 5vw, 60px);
  font-weight: 800;
  letter-spacing: -0.02em;
  position: relative;
}
.cta-band__sub { margin-top: 18px; color: var(--text-2); position: relative; }
.cta-band .btn-row {
  margin-top: 40px;
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
}
.cta-band__title { position: relative; }
.cta-band__title em { font-style: normal; color: var(--text); }

/* ---------- 产品生态页 ---------- */
.hero--page {
  min-height: auto;
  padding: calc(var(--nav-top) + var(--nav-h) + 84px) 0 90px;
}
.hero--page .hero__title { font-size: clamp(40px, 6vw, 76px); }
.hero--page .hero__sub { max-width: 560px; margin-top: 20px; font-size: 16px; }
.grid-head {
  display: flex;
  align-items: center;
  gap: 16px;
  margin: 0 0 28px;
}
.grid-head::after { content: ""; flex: 1; height: 1px; background: var(--line-soft); }
.grid-head .label {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  border: 1px solid var(--glass-line-soft);
  border-radius: 999px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.025));
  backdrop-filter: blur(12px);
  box-shadow: var(--glass-highlight);
}
.grid-head .label svg { width: 15px; height: 15px; color: var(--violet); }
.grid-head .count { font-family: var(--font-mono); font-size: 11px; color: var(--text-3); }
.prod__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.prod__card { padding: 34px 30px; display: flex; flex-direction: column; }
.prod__card .ico {
  width: 58px; height: 58px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  margin-bottom: 26px;
  border: 1px solid var(--line);
  background: rgba(139, 124, 255, 0.09);
  color: var(--violet);
  display: none; /* 产品卡片去掉图标，纯文字排版 */
}
.prod__card .ico svg { width: 28px; height: 28px; }
.prod__card--c .ico { background: rgba(85, 214, 224, 0.09); color: var(--cyan); }
.prod__card--g .ico { background: rgba(242, 178, 92, 0.09); color: var(--gold); }
.prod__card--m .ico { background: rgba(239, 106, 168, 0.09); color: var(--magenta); }
.prod__card h3 { font-size: 22px; font-weight: 700; letter-spacing: -0.01em; }
.prod__card .en {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-top: 5px;
}
.prod__card p { margin-top: 14px; color: var(--text-2); font-size: 14.5px; line-height: 1.9; flex: 1; }
.prod__card .tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 18px; }
.prod__card .foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--line-soft);
}
.prod__card .foot .go {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
}
.prod__card .foot .go svg { width: 15px; height: 15px; transition: transform 0.3s var(--ease); }
.prod__card:hover .foot .go svg { transform: translateX(5px); }
.prod__card .foot .stat { font-family: var(--font-mono); font-size: 11.5px; color: var(--text-3); letter-spacing: 0.06em; }

/* ---------- 更新记录页 ---------- */
.tl { position: relative; }
.tl__rail {
  position: absolute;
  left: calc(50%);
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--line-soft);
  transform: translateX(-50%);
}
.tl__group { position: relative; margin-bottom: 64px; }
.tl__year {
  position: sticky;
  top: calc(var(--nav-top) + var(--nav-h) + 18px);
  z-index: 5;
  text-align: center;
  margin-bottom: 44px;
}
.tl__year .yr {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  font-family: var(--font-en);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--text);
  padding: 10px 26px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(6, 7, 13, 0.85);
  backdrop-filter: blur(14px);
}
.tl__year .yr::before,
.tl__year .yr::after { content: ""; width: 44px; height: 1px; background: var(--line); }
.tl__item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin-bottom: 26px;
}
.tl__item .node {
  position: absolute;
  left: 50%;
  top: 34px;
  transform: translateX(-50%);
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--violet);
  box-shadow: 0 0 0 4px rgba(139, 124, 255, 0.14);
  z-index: 2;
}
.tl__item--flip .tl__side--left { grid-column: 2; text-align: left; padding-left: 46px; padding-right: 0; }
.tl__item--flip .tl__side--right { grid-column: 1; }
.tl__ver { margin-top: 20px; }
.tl__ver:first-of-type { margin-top: 0; }
.tl__ver-head { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 10px; }
.tl__ver-note { font-family: var(--font-mono); font-size: 11.5px; letter-spacing: 0.08em; color: var(--text-3); }
.tl__sub { margin-top: 22px; padding-top: 18px; border-top: 1px dashed var(--line-soft); }
.tl__sub > h4 {
  display: flex; align-items: center; gap: 9px;
  font-size: 14px; font-weight: 700; color: var(--text);
  margin-bottom: 12px;
}
.tl__sub > h4 svg { width: 14px; height: 14px; color: var(--violet); }
.tl__sub ul { margin-top: 0; }
.tl__item--c .node { border-color: var(--cyan); box-shadow: 0 0 0 4px rgba(85, 214, 224, 0.14); }
.tl__item--g .node { border-color: var(--gold); box-shadow: 0 0 0 4px rgba(242, 178, 92, 0.14); }
.tl__side--left { padding-right: 46px; text-align: right; padding-top: 18px; }
.tl__side--right { padding-left: 46px; padding-top: 18px; }
.tl__date { font-family: var(--font-mono); font-size: 13.5px; letter-spacing: 0.05em; color: var(--text-3); }
.tl__date b { color: var(--text-2); font-weight: 500; font-size: 15px; display: block; }
.tl__date .upd { display: inline-flex; align-items: center; gap: 6px; margin-top: 8px; font-size: 11px; color: var(--cyan); letter-spacing: 0.1em; }
.tl__date .upd svg { width: 11px; height: 11px; }
.tl__card { padding: 30px 32px; }
.tl__card .head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.tl__card h3 { font-size: 19.5px; font-weight: 700; letter-spacing: -0.01em; }
.tl__card .ver {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  padding: 6px 13px;
  border-radius: 8px;
  border: 1px solid rgba(139, 124, 255, 0.4);
  color: #b9adff;
  background: rgba(139, 124, 255, 0.09);
  white-space: nowrap;
}
.tl__card--c .ver { border-color: rgba(85, 214, 224, 0.4); color: #8ee7ee; background: rgba(85, 214, 224, 0.09); }
.tl__card--m .ver { border-color: rgba(239, 106, 168, 0.4); color: #f5a2c8; background: rgba(239, 106, 168, 0.09); }
.tl__card--g .ver { border-color: rgba(242, 178, 92, 0.4); color: #f4c98d; background: rgba(242, 178, 92, 0.09); }
.tl__card ul { margin-top: 18px; display: grid; gap: 9px; }
.tl__card ul li {
  position: relative;
  padding-left: 20px;
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.8;
}
.tl__card ul li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 11px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--violet);
  opacity: 0.75;
}
.tl__card--c ul li::before { background: var(--cyan); }
.tl__card--m ul li::before { background: var(--magenta); }
.tl__card--g ul li::before { background: var(--gold); }
.tl__card .sub-product {
  margin-top: 16px;
  padding: 15px 18px;
  border: 1px dashed var(--line);
  border-radius: 12px;
  color: var(--text-2);
  font-size: 13.5px;
  line-height: 1.8;
}
.tl__card .sub-product h4 {
  font-size: 13px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
}
.tl__card .sub-product h4 svg { width: 13px; height: 13px; color: var(--violet); }

/* ---------- 友情链接页 ---------- */
.partner__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.partner__card { padding: 40px 36px; }
.partner__card .top { display: flex; align-items: center; gap: 20px; }
.partner__card .logo {
  width: 64px; height: 64px;
  border-radius: 18px;
  object-fit: contain;
  padding: 10px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--line);
  flex: none;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08), 0 10px 26px -14px rgba(0, 0, 0, 0.55);
  transition: transform 0.35s var(--ease);
}
.partner__card:hover .logo { transform: scale(1.06); }
.partner__card h3 { font-size: 22px; font-weight: 700; }
.partner__card .domain {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-3);
  margin-top: 4px;
}
.partner__card p { margin-top: 22px; color: var(--text-2); font-size: 14.5px; }
.partner__card .go {
  margin-top: 28px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.3s var(--ease);
}
.partner__card .go svg { width: 15px; height: 15px; }
.partner__card .go:hover {
  background: var(--grad-main);
  border-color: transparent;
  color: #05060b;
  transform: translateY(-2px);
}
.apply__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; align-items: stretch; }
.apply__panel { padding: 44px 40px; }
.apply__panel h3 { font-size: 24px; font-weight: 700; }
.apply__panel .en {
  font-family: var(--font-en);
  font-size: 12px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-top: 6px;
}
.steps { margin-top: 30px; display: grid; gap: 0; }
.step { display: grid; grid-template-columns: 56px 1fr; gap: 20px; padding: 20px 0; border-bottom: 1px solid var(--line-soft); }
.step:last-child { border-bottom: none; }
.step .no {
  width: 44px; height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--violet);
  background: rgba(139, 124, 255, 0.06);
}
.step h4 { font-size: 16px; font-weight: 600; }
.step p { margin-top: 6px; color: var(--text-2); font-size: 13.5px; line-height: 1.85; }
.rules { margin-top: 28px; display: grid; gap: 12px; }
.rule {
  display: flex;
  gap: 14px;
  padding: 15px 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  font-size: 13.5px;
  color: var(--text-2);
  line-height: 1.8;
}
.rule svg { width: 16px; height: 16px; color: var(--gold); flex: none; margin-top: 3px; }
.rule strong { color: var(--text); font-weight: 600; }

/* ---------- 404 ---------- */
.err {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: 120px 0;
}
.err__code {
  font-family: var(--font-en);
  font-size: clamp(120px, 24vw, 260px);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--text);
  text-shadow: 0 24px 70px rgba(0, 0, 0, 0.6);
  position: relative;
}
.err__code::after {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.08);
  transform: translate(4px, 4px);
  z-index: -1;
}
.err__label {
  margin-top: 26px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.36em;
  text-transform: uppercase;
  color: var(--cyan);
}
.err__title { margin-top: 14px; font-size: clamp(24px, 3.4vw, 40px); font-weight: 700; }
.err__desc { margin: 18px auto 0; max-width: 460px; color: var(--text-2); font-size: 15px; line-height: 2; }
.err__cta { margin-top: 40px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.err__telemetry {
  margin: 52px auto 0;
  max-width: 640px;
  border: 1px solid var(--glass-line-soft);
  border-radius: var(--radius-sm);
  background: linear-gradient(165deg, rgba(28, 31, 46, 0.7), rgba(10, 12, 20, 0.72));
  backdrop-filter: blur(18px) saturate(1.4);
  -webkit-backdrop-filter: blur(18px) saturate(1.4);
  box-shadow: var(--glass-highlight), var(--glass-shadow);
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 2;
  color: var(--text-2);
  overflow: hidden;
}
.err__telemetry .bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--line-soft);
  color: var(--text-3);
  font-size: 11px;
  letter-spacing: 0.14em;
}
.err__telemetry .bar .dots { display: flex; gap: 5px; }
.err__telemetry .bar .dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--line); }
.err__telemetry .bar .dots i:nth-child(1) { background: #f87171; }
.err__telemetry .bar .dots i:nth-child(2) { background: #fbbf24; }
.err__telemetry .bar .dots i:nth-child(3) { background: #34d399; }
.err__telemetry .body { padding: 18px 20px; display: grid; gap: 2px; }
.err__telemetry .body .row { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.err__telemetry .row b { color: var(--text); font-weight: 500; }
.err__telemetry .row .ok { color: #34d399; }
.err__telemetry .row .warn { color: #fbbf24; }
.err__telemetry .row .dead { color: #f87171; }

/* ---------- 维知页 ---------- */
.wz-hero {
  position: relative;
  padding: calc(var(--nav-top) + var(--nav-h) + 70px) 0 70px;
  text-align: center;
  overflow: hidden;
}
.wz-hero__mark {
  position: relative;
  width: 96px; height: 96px;
  margin: 0 auto 34px;
  display: grid;
  place-items: center;
}
.wz-hero__mark .core {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 26%, rgba(255, 255, 255, 0.16), transparent 46%), linear-gradient(180deg, #8b7cff, #6b5ae8);
  box-shadow: 0 16px 44px -12px rgba(120, 105, 255, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}
.wz-hero__title {
  font-size: clamp(40px, 6.4vw, 78px);
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.1;
}
.wz-hero__title .en {
  display: block;
  font-family: var(--font-en);
  font-size: 0.36em;
  font-weight: 600;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-top: 18px;
}
.wz-hero__sub { margin: 24px auto 0; max-width: 560px; color: var(--text-2); font-size: 16.5px; line-height: 2; }
.wz-hero__cta { margin-top: 38px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.wz-hero__models {
  margin-top: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.wz-hero__models .m {
  padding: 8px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  font-family: var(--font-en);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--text-2);
  transition: all 0.3s;
}
.wz-hero__models .m:hover { border-color: rgba(139, 124, 255, 0.5); color: #b9adff; transform: translateY(-2px); }

.wz-feat__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.wz-feat { padding: 34px 26px; }
.wz-feat .no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--text-3);
}
.wz-feat .ico {
  width: 48px; height: 48px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  margin: 18px 0 20px;
  border: 1px solid var(--line);
  background: rgba(139, 124, 255, 0.08);
  color: var(--violet);
}
.wz-feat .ico svg { width: 22px; height: 22px; }
.wz-feat--c .ico { background: rgba(85, 214, 224, 0.08); color: var(--cyan); }
.wz-feat--g .ico { background: rgba(242, 178, 92, 0.08); color: var(--gold); }
.wz-feat--m .ico { background: rgba(239, 106, 168, 0.08); color: var(--magenta); }
.wz-feat h3 { font-size: 17.5px; font-weight: 700; }
.wz-feat .en { font-family: var(--font-en); font-size: 11px; letter-spacing: 0.22em; text-transform: uppercase; color: var(--text-3); margin-top: 4px; }
.wz-feat p { margin-top: 12px; color: var(--text-2); font-size: 13.5px; line-height: 1.85; }

/* 账号卡 */
.wz-account__card {
  max-width: 620px;
  margin: 0 auto;
  padding: 44px 40px;
  text-align: left;
  position: relative;
  overflow: hidden;
}
.wz-account__card::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(139, 124, 255, 0.2), transparent 65%);
}
.wz-account__card .head { display: flex; align-items: center; gap: 14px; }
.wz-account__card .head .ico {
  width: 46px; height: 46px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  background: rgba(139, 124, 255, 0.1);
  color: var(--violet);
  border: 1px solid rgba(139, 124, 255, 0.3);
}
.wz-account__card .head .ico svg { width: 22px; height: 22px; }
.wz-account__card .head h3 { font-size: 20px; font-weight: 700; }
.wz-account__card .head p { font-size: 13px; color: var(--text-3); margin-top: 2px; }
.wz-account__fields { margin-top: 28px; display: grid; gap: 14px; position: relative; }
.wz-field {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.025);
}
.wz-field .k { font-size: 13px; color: var(--text-3); letter-spacing: 0.06em; flex: none; }
.wz-field .v {
  font-family: var(--font-mono);
  font-size: 14.5px;
  color: var(--text);
  letter-spacing: 0.04em;
  margin-right: auto;
  margin-left: 10px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.wz-field .copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-2);
  font-size: 12.5px;
  cursor: pointer;
  transition: all 0.25s;
  flex: none;
}
.wz-field .copy-btn svg { width: 13px; height: 13px; }
.wz-field .copy-btn:hover { border-color: rgba(139, 124, 255, 0.5); color: var(--text); }
.wz-field .copy-btn.done { border-color: rgba(52, 211, 153, 0.5); color: #34d399; }
.wz-account__note {
  margin-top: 20px;
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.9;
  position: relative;
}
.wz-account__card .btn-row { margin-top: 28px; display: flex; gap: 12px; flex-wrap: wrap; position: relative; }

/* 公告时间线 */
.ann__wrap { max-width: 760px; margin: 0 auto; position: relative; }
.ann__wrap::before {
  content: "";
  position: absolute;
  left: 12px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--line);
}
.ann {
  position: relative;
  padding: 0 0 34px 44px;
}
.ann::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 8px;
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--violet);
  box-shadow: 0 0 0 4px rgba(139, 124, 255, 0.14);
}
.ann:last-child { padding-bottom: 0; }
.ann .date { font-family: var(--font-mono); font-size: 12.5px; color: var(--text-3); letter-spacing: 0.08em; }
.ann .date b { color: var(--text-2); font-weight: 500; }
.ann h4 { font-size: 16.5px; font-weight: 700; margin-top: 8px; }
.ann p { margin-top: 8px; color: var(--text-2); font-size: 14px; line-height: 1.9; }

/* ---------- 下载页 ---------- */
.dl-hero { text-align: center; padding: calc(var(--nav-top) + var(--nav-h) + 64px) 0 50px; }
.dl-hero__title { font-size: clamp(34px, 5vw, 60px); font-weight: 800; letter-spacing: -0.02em; }
.dl-hero__sub { margin-top: 16px; color: var(--text-2); }
.os-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.os-card { padding: 30px 28px; }
.os-card__head { display: flex; align-items: center; gap: 14px; padding-bottom: 20px; border-bottom: 1px solid var(--line-soft); }
.os-card__head .ico {
  width: 46px; height: 46px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}
.os-card__head .ico svg { width: 24px; height: 24px; }
.os-card__head h3 { font-size: 17px; font-weight: 700; }
.os-card__head .os { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--text-3); margin-top: 2px; }
.os-card__body { display: grid; }
.arch {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 15px 2px;
  border-bottom: 1px solid var(--line-soft);
}
.arch:last-child { border-bottom: none; }
.arch .info { min-width: 0; }
.arch .name { font-size: 14.5px; font-weight: 600; }
.arch .det { font-size: 12px; color: var(--text-3); margin-top: 2px; }
.arch .dl {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 15px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.035);
  font-size: 13px;
  font-weight: 600;
  flex: none;
  cursor: pointer;
  transition: all 0.3s var(--ease);
  color: var(--text);
}
.arch .dl svg { width: 14px; height: 14px; }
.arch .dl:hover {
  background: var(--grad-main);
  border-color: transparent;
  color: #05060b;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px -6px rgba(110, 110, 255, 0.55);
}
.steps-dl { counter-reset: s; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.step-dl {
  position: relative;
  padding: 36px 30px 30px;
  border: 1px solid var(--glass-line-soft);
  border-radius: var(--radius);
  background: var(--glass-bg);
  backdrop-filter: blur(16px) saturate(1.35);
  -webkit-backdrop-filter: blur(16px) saturate(1.35);
  box-shadow: var(--glass-highlight), 0 18px 44px -18px rgba(0, 0, 0, 0.55);
}
.step-dl::before {
  counter-increment: s;
  content: "0" counter(s);
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 44px;
  letter-spacing: -0.03em;
  background: var(--grad-main);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  opacity: 0.9;
}
.step-dl h3 { margin-top: 14px; font-size: 17.5px; font-weight: 700; }
.step-dl p { margin-top: 8px; color: var(--text-2); font-size: 13.5px; line-height: 1.85; }

/* ---------- 弹窗 ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(3, 4, 9, 0.72);
  backdrop-filter: blur(14px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s, visibility 0.35s;
}
.modal.is-open { opacity: 1; visibility: visible; }
.modal__card {
  width: min(480px, 100%);
  border-radius: 26px;
  border: 1px solid var(--glass-line);
  background: linear-gradient(170deg, rgba(30, 33, 50, 0.85), rgba(12, 14, 23, 0.9));
  backdrop-filter: blur(28px) saturate(1.5);
  -webkit-backdrop-filter: blur(28px) saturate(1.5);
  box-shadow: var(--glass-highlight), 0 44px 120px -22px rgba(0, 0, 0, 0.85), 0 0 0 1px rgba(139, 124, 255, 0.1);
  padding: 36px 34px 32px;
  text-align: center;
  transform: translateY(18px) scale(0.98);
  transition: transform 0.4s var(--ease);
  position: relative;
}
.modal__card::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
}
.modal.is-open .modal__card { transform: none; }
.modal__ico {
  width: 64px; height: 64px;
  margin: 0 auto 20px;
  border-radius: 20px;
  display: grid;
  place-items: center;
  background: rgba(242, 178, 92, 0.1);
  border: 1px solid rgba(242, 178, 92, 0.35);
  color: var(--gold);
}
.modal__ico svg { width: 30px; height: 30px; }
.modal__title { font-size: 21px; font-weight: 700; }
.modal__desc { margin-top: 12px; color: var(--text-2); font-size: 14px; line-height: 1.9; }
.modal__file {
  margin-top: 18px;
  padding: 11px 14px;
  border-radius: 10px;
  border: 1px dashed var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text);
  word-break: break-all;
}
.modal__actions { margin-top: 26px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* 提示 toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: 30px;
  transform: translateX(-50%) translateY(20px);
  z-index: 2100;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid rgba(52, 211, 153, 0.4);
  background: rgba(10, 24, 18, 0.9);
  backdrop-filter: blur(12px);
  color: #6ef0b6;
  font-size: 13.5px;
  opacity: 0;
  pointer-events: none;
  transition: all 0.4s var(--ease);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast svg { width: 15px; height: 15px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .nav__links { position: static; transform: none; }
  .nav { justify-content: space-between; }
  .nav__cta .btn { display: none; }
  .feature { gap: 44px; }
  .tech__grid, .prod__grid, .os-grid { grid-template-columns: 1fr 1fr; }
  .wz-feat__grid { grid-template-columns: 1fr 1fr; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}
@media (max-width: 860px) {
  /* 浮岛收窄（滚动浮现行为同桌面） */
  .nav { top: 10px; height: 58px; width: calc(100% - 20px); border-radius: 999px; }
  .nav__inner { padding: 0 9px; }
  .brand__logo { height: 26px; }
  .brand { gap: 10px; }
  .brand .brand__cn { font-size: 15px; }
  .nav__links, .nav__cta { display: none; }
  .nav__burger { display: flex; width: 40px; height: 40px; border-radius: 999px; }
  .section { padding: 84px 0; }
  .feature { grid-template-columns: 1fr; padding: 72px 0; gap: 56px; }
  .feature:nth-child(even) { direction: ltr; }
  .stats__grid { grid-template-columns: 1fr 1fr; }
  .hero__meta { gap: 18px; flex-wrap: wrap; }
  .tl__item { grid-template-columns: 1fr; }
  .tl__item .node { left: 12px; top: 30px; transform: none; }
  .tl__rail { left: 12px; }
  /* 单列模式：清除翻转项的双栏显式列位，避免产生隐式第二列导致横向错位/裁切 */
  .tl__item--flip .tl__side--left,
  .tl__item--flip .tl__side--right { grid-column: auto; }
  .tl__side--left, .tl__side--right { padding: 16px 0 0 40px; text-align: left; }
  .tl__year { top: 80px; margin-bottom: 32px; } /* 适配移动浮岛(10+58)下方留白 */
  .tl__year .yr::before, .tl__year .yr::after { width: 18px; }
  .apply__grid, .partner__grid { grid-template-columns: 1fr; }
  .steps-dl { grid-template-columns: 1fr; }
  .hub, .pipe { max-width: 440px; }
  .drawer__panel { margin: 0 10px calc(10px + env(safe-area-inset-bottom)); }
}
@media (max-width: 640px) {
  .container { width: calc(100% - 36px); }
  .tech__grid, .prod__grid, .os-grid, .wz-feat__grid, .eco__grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .section-head { flex-direction: column; align-items: flex-start; gap: 14px; }
  .hero__cta { gap: 10px; }
  .hero__cta .btn { width: auto; min-height: 42px; padding: 10px 20px; font-size: 14.5px; }
  .wz-account__card { padding: 32px 24px; }
  .stats__item { padding: 28px 20px; }
  .tl__card { padding: 24px 20px; }
  /* 触控与排版 */
  .btn { min-height: 46px; padding: 13px 22px; }
  .hero { padding-top: calc(var(--nav-top) + var(--nav-h) + 30px); }
  .hero__eyebrow { font-size: 11.5px; padding: 8px 14px; margin-bottom: 26px; }
  .hero__title { letter-spacing: -0.02em; }
  .hero__sub { margin-top: 20px; }
  .hero__meta { margin-top: 44px; font-size: 11.5px; letter-spacing: 0.1em; }
  .scroll-hint { bottom: 20px; }
  .section { padding: 70px 0; }
  .section--tight { padding: 52px 0; }
  .manifesto__text { margin-top: 26px; }
  .manifesto__en { margin-top: 24px; letter-spacing: 0.32em; font-size: 12.5px; }
  .hub__rows { padding: 2px 0; }
  .hub__row { padding: 13px 16px; gap: 10px; }
  .hub__row .model { font-size: 13px; gap: 9px; }
  .hub__row .desc { font-size: 12px; }
  .hub__foot { padding: 10px 16px; font-size: 10.5px; }
  .pipe { padding: 34px 20px; }
  .pipe__station .ico { width: 44px; height: 44px; border-radius: 13px; }
  .pipe__station { font-size: 11.5px; }
  .pipe__packet { width: 46px; height: 46px; border-radius: 15px; }
  .tech__card { padding: 30px 24px; }
  .eco__card { padding: 24px 20px; }
  .prod__card { padding: 28px 22px; }
  .partner__card { padding: 30px 24px; }
  .apply__panel { padding: 32px 24px; }
  .apply__panel .go, .partner__card .go { width: 100%; justify-content: center; }
  .cta-band { padding: 96px 0; }
  .wz-hero { padding-top: calc(var(--nav-top) + var(--nav-h) + 40px); }
  .wz-hero__mark { width: 80px; height: 80px; margin-bottom: 26px; }
  .wz-hero__mark .core { width: 48px; height: 48px; }
  .wz-hero__models { gap: 8px; margin-top: 34px; }
  .wz-hero__models .m { padding: 7px 13px; font-size: 12px; }
  .os-card { padding: 24px 18px; }
  .arch { padding: 14px 2px; }
  .arch .dl { min-height: 40px; padding: 8px 14px; font-size: 12.5px; }
  .steps-dl .step-dl { padding: 28px 22px 22px; }
  .footer { padding: 56px 0 30px; }
  .footer__bottom { flex-direction: column; text-align: center; gap: 10px; }
  .footer__beian { justify-content: center; }
  .err { padding: 100px 0; }
  .err__telemetry { margin-top: 38px; font-size: 11px; }
  .err__telemetry .body { padding: 14px 14px; }
  .err__label { letter-spacing: 0.22em; font-size: 12px; }
  .modal__card { padding: 30px 22px 26px; }
  .modal__actions .btn { width: 100%; }
  .tl__group { margin-bottom: 44px; }
  .tl__side--left, .tl__side--right,
  .tl__item--flip .tl__side--left,
  .tl__item--flip .tl__side--right { padding: 14px 0 0 28px; text-align: left; }
  .tl__item .node { top: 26px; }
  .tl__date { font-size: 12.5px; letter-spacing: 0.04em; }
  .tl__date b { font-size: 14px; }
  .tl__ver-head { gap: 8px; }
  .tl__card { padding: 24px 20px; }
  .tl__card h3 { font-size: 17px; overflow-wrap: anywhere; }
  .tl__card ul li { font-size: 13.8px; overflow-wrap: anywhere; }
  .tl__card .ver { font-size: 11.5px; padding: 5px 11px; }
  .tl__sub { margin-top: 18px; padding-top: 15px; }
  .tl__sub > h4 { align-items: flex-start; }
  .tl__sub > h4 svg { margin-top: 3px; }
  .tl__year .yr { font-size: 16px; padding: 8px 18px; letter-spacing: 0.22em; }
  .tl__card .head { gap: 10px; }
  .stats__num { font-size: 30px; }
}
@media (max-width: 440px) {
  .stats__grid { grid-template-columns: 1fr; }
  .grid-head .label { letter-spacing: 0.14em; font-size: 11.5px; padding: 7px 13px; }
  .hero__meta span:nth-child(3) { display: none; }
  /* 小屏：时间线进一步收紧凑 */
  .tl__year { top: 78px; margin-bottom: 26px; }
  .tl__year .yr { font-size: 14.5px; padding: 7px 15px; letter-spacing: 0.16em; gap: 12px; }
  .tl__year .yr::before, .tl__year .yr::after { display: none; }
  .tl__item { margin-bottom: 16px; }
  .tl__card { padding: 20px 16px; border-radius: 18px; }
  .tl__card ul li { font-size: 13.5px; line-height: 1.78; padding-left: 17px; }
  .tl__card ul li::before { left: 1px; top: 10px; }
  .tl__card h3 { font-size: 16px; }
  .tl__date b { font-size: 13px; }
  .tl__more { margin-top: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  .pipe__beam .rail--glow, .pipe__progress .fill { animation: none; }
  .hero__eyebrow .pulse { animation: none; }
}
/* ---------- 条款与隐私 · 文章页 ---------- */
.legal { max-width: 880px; margin: 0 auto; position: relative; }
.legal__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 22px;
  padding: 16px 20px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.035);
  backdrop-filter: blur(12px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.07);
}
.legal__dates { display: flex; gap: 20px; flex-wrap: wrap; }
.legal__dates .d { display: flex; flex-direction: column; }
.legal__dates .d small { font-size: 11px; letter-spacing: 0.14em; color: var(--text-3); font-family: var(--font-mono); }
.legal__dates .d b { font-size: 13.5px; color: var(--text); font-weight: 500; font-family: var(--font-mono); margin-top: 3px; }
.legal__body { margin-top: 44px; }
.legal__body section { margin-bottom: 26px; padding-top: 26px; }
.legal__body h2 {
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-size: 23px;
  font-weight: 700;
  letter-spacing: 0.01em;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line-soft);
  margin-bottom: 22px;
}
.legal__body h2 .no {
  font-family: var(--font-en);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.06em;
  color: var(--violet);
  flex: none;
}
.legal__body h3 { font-size: 17.5px; font-weight: 700; margin: 30px 0 12px; color: var(--text); }
.legal__body h4 { font-size: 15.5px; font-weight: 700; margin: 26px 0 10px; }
.legal__body p { color: var(--text-2); font-size: 15px; line-height: 2.05; margin: 10px 0; }
.legal__body p strong, .legal__body b { color: var(--text); font-weight: 600; }
.legal__body .red { color: #f87171; }
.legal__body ul { margin: 14px 0; display: grid; gap: 9px; }
.legal__body ul li {
  position: relative;
  padding-left: 24px;
  color: var(--text-2);
  font-size: 14.5px;
  line-height: 1.95;
}
.legal__body ul li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 13px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--violet);
  opacity: 0.75;
}
.legal__body ul ul { margin: 8px 0 8px 8px; }
.legal__body ol { margin: 12px 0 12px 22px; color: var(--text-2); font-size: 14.5px; line-height: 2; list-style: decimal; }
.legal__alert {
  position: relative;
  margin: 28px 0;
  padding: 18px 22px 16px 24px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
  overflow: hidden;
}
.legal__alert::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
}
.legal__alert--violet { border-color: rgba(139, 124, 255, 0.3); }
.legal__alert--violet::before { background: var(--violet); }
.legal__alert--red { border-color: rgba(248, 113, 113, 0.35); }
.legal__alert--red::before { background: #f87171; }
.legal__alert--gold { border-color: rgba(242, 178, 92, 0.35); }
.legal__alert--gold::before { background: var(--gold); }
.legal__alert h4 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  margin: 0 0 10px;
}
.legal__alert h4 svg { width: 17px; height: 17px; flex: none; }
.legal__alert--violet h4 svg { color: #b9adff; }
.legal__alert--red h4 svg { color: #f87171; }
.legal__alert--gold h4 svg { color: var(--gold); }
.legal__alert p, .legal__alert li { font-size: 14px !important; }
.table-scroll { overflow-x: auto; margin: 20px 0; border: 1px solid var(--line-soft); border-radius: 14px; }
.legal table {
  width: 100%;
  border-collapse: collapse;
  background: rgba(255, 255, 255, 0.02);
}
.legal th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--text-3);
  text-transform: uppercase;
  font-weight: 500;
  padding: 13px 16px;
  border-bottom: 1px solid var(--line-soft);
  white-space: nowrap;
}
.legal td {
  padding: 13px 16px;
  color: var(--text-2);
  font-size: 13.5px;
  line-height: 1.8;
  border-bottom: 1px solid rgba(255, 255, 255, 0.045);
  vertical-align: top;
}
.legal tr:last-child td { border-bottom: none; }
.legal td strong { color: var(--text); }
@media (max-width: 640px) {
  .legal__body h2 { font-size: 19px; }
  .legal__body h3 { font-size: 16px; }
  .legal__meta { padding: 14px 16px; }
  .legal__alert { padding: 16px 16px 14px 18px; }
  .legal th, .legal td { padding: 10px 12px; font-size: 12.5px; }
}
@media print {
  body { background: #fff !important; }
  .nav, .drawer, .footer, .aurora, .starfield, .hero__glow, .hero-fx, .scroll-hint, .legal__actions, .toast, .no-print { display: none !important; }
  .hero { min-height: auto; padding: 20px 0 !important; }
  .legal * { color: #111 !important; border-color: #ddd !important; box-shadow: none !important; text-shadow: none !important; }
  .legal__alert { background: #f5f5f5 !important; break-inside: avoid; }
  .legal__body section { break-inside: auto; }
  .legal h2 { break-after: avoid; }
  .legal h3, .legal h4 { break-after: avoid; }
}

/* ---------- 云投递：技术细节（五列） ---------- */
.td-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.td-card { padding: 26px 20px; }
.td-card .ico {
  width: 42px; height: 42px;
  border-radius: 13px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(85, 214, 224, 0.32);
  background: rgba(85, 214, 224, 0.08);
  color: var(--cyan);
  margin-bottom: 16px;
}
.td-card .ico svg { width: 20px; height: 20px; }
.td-card h4 { font-size: 15.5px; font-weight: 700; margin-bottom: 8px; }
.td-card p { font-size: 13px; color: var(--text-2); line-height: 1.85; }
@media (max-width: 1100px) { .td-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 760px) { .td-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .td-grid { grid-template-columns: 1fr; } }

/* ---------- 状态页（公告 / 维护） ---------- */
.status {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: calc(var(--nav-top) + var(--nav-h) + 40px) 0 70px;
}
.status__card {
  position: relative;
  z-index: 2;
  width: min(680px, 100%);
  margin-inline: auto;
  border: 1px solid var(--glass-line-soft);
  border-radius: 26px;
  background: var(--glass-bg);
  backdrop-filter: blur(18px) saturate(1.3);
  -webkit-backdrop-filter: blur(18px) saturate(1.3);
  box-shadow: var(--glass-highlight), 0 30px 80px -28px rgba(0, 0, 0, 0.7);
  padding: 56px 44px 48px;
}
.status__icon {
  width: 72px; height: 72px;
  margin: 0 auto 24px;
  border-radius: 22px;
  display: grid;
  place-items: center;
}
.status__icon--cyan { background: rgba(85, 214, 224, 0.1); border: 1px solid rgba(85, 214, 224, 0.35); color: var(--cyan); }
.status__icon--gold { background: rgba(242, 178, 92, 0.1); border: 1px solid rgba(242, 178, 92, 0.35); color: var(--gold); }
.status__icon svg { width: 34px; height: 34px; }
.status__eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-3);
}
.status__eyebrow--cyan { color: var(--cyan); }
.status__eyebrow--gold { color: var(--gold); }
.status__title { margin-top: 12px; font-size: clamp(28px, 4vw, 44px); font-weight: 800; letter-spacing: -0.01em; }
.status__desc { margin: 16px auto 0; max-width: 520px; color: var(--text-2); font-size: 15px; line-height: 2.05; }
.status__desc strong { color: var(--text); }
.status__actions { margin-top: 34px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.status__note {
  margin-top: 22px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--text-3);
}
@media (max-width: 640px) {
  .status { padding: calc(var(--nav-top) + var(--nav-h) + 24px) 0 50px; }
  .status__card { padding: 40px 24px 36px; }
}

/* 维知/下载页 hero 承载交互背景 */
.wz-hero, .dl-hero { position: relative; }
.dl-hero { overflow: hidden; }
.wz-hero .aurora, .dl-hero .aurora { z-index: 0; }

/* ---------- 公告卡（云投递一级页面） ---------- */
.status .aurora { z-index: 0; }
.notice-card {
  max-width: 660px;
  text-align: left;
  padding: 48px 46px 40px;
}
.notice-card__top { display: flex; align-items: flex-start; gap: 18px; }
.notice-card__icon {
  width: 60px; height: 60px;
  flex: none;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: rgba(85, 214, 224, 0.1);
  border: 1px solid rgba(85, 214, 224, 0.32);
  color: var(--cyan);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
}
.notice-card__icon svg { width: 28px; height: 28px; }
.notice-card__eyebrow {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-top: 2px;
}
.notice-card__title {
  font-size: clamp(26px, 4vw, 36px);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-top: 6px;
}
.notice-card__tags { display: flex; gap: 10px; flex-wrap: wrap; margin: 26px 0 0; }
.notice-card__h2 {
  font-size: 20px;
  font-weight: 700;
  margin: 30px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--line-soft);
}
.notice-card__text {
  margin-top: 14px;
  color: var(--text-2);
  font-size: 15px;
  line-height: 2.05;
}
.notice-card__text strong { color: var(--text); font-weight: 600; }
.notice-card__actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 30px;
}
.notice-card__foot {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-3);
}
@media (max-width: 640px) {
  .notice-card { padding: 34px 22px 28px; }
  .notice-card__top { gap: 14px; }
  .notice-card__icon { width: 50px; height: 50px; border-radius: 15px; }
  .notice-card__icon svg { width: 24px; height: 24px; }
  .notice-card__actions .btn { width: 100%; justify-content: center; }
}