/* ============================================================
   领数云 LINKEDDT — 全暗色大屏风设计系统
   深海军蓝底 × 青色辉光 × HUD 细节 × Rajdhani 科技数字
   ============================================================ */

:root {
  --bg-0: #04101f;
  --bg-1: #071a33;
  --bg-2: #0a2140;
  --panel: rgba(13, 42, 78, 0.42);
  --panel-solid: #0b2340;
  --line: rgba(72, 160, 255, 0.20);
  --line-strong: rgba(69, 216, 255, 0.45);
  --cyan: #45d8ff;
  --blue: #2e8bff;
  --ink: #d9eaf9;
  --muted: #82a6c6;
  --dim: #557699;
  --glow: 0 0 26px rgba(69, 216, 255, 0.22);
  --font-num: "Rajdhani", "Bahnschrift", "Segoe UI", sans-serif;
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --ease-out: cubic-bezier(0.215, 0.61, 0.355, 1);
  --nav-h: 72px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }

body {
  font-family: var(--font-cn);
  background: var(--bg-0);
  color: var(--ink);
  visibility: visible;
  line-height: 1.75;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ---------- 全局氛围背景：径向光晕 + 网格 + 扫描线 ---------- */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(1100px 620px at 82% -8%, rgba(46, 139, 255, 0.16), transparent 60%),
    radial-gradient(900px 540px at -12% 38%, rgba(69, 216, 255, 0.08), transparent 60%),
    radial-gradient(1000px 700px at 55% 118%, rgba(20, 80, 160, 0.16), transparent 65%),
    linear-gradient(180deg, var(--bg-0), #051327 55%, var(--bg-0));
}
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(rgba(90, 170, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(90, 170, 255, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 30%, transparent 100%);
}

::selection { background: rgba(69, 216, 255, 0.32); color: #fff; }

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.wrap { width: min(1200px, calc(100% - 48px)); margin: 0 auto; }

/* ============================================================
   导航
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(5, 16, 31, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  transition: background 250ms ease;
}
.nav.scrolled { background: rgba(4, 14, 28, 0.9); }
.nav-inner {
  width: min(1280px, calc(100% - 48px));
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 40px;
}
.brand { display: flex; flex: 0 0 auto; align-items: center; min-height: 44px; }
.brand img { display: block; width: auto; height: 48px; object-fit: contain; }
@media (max-width: 720px) {
  .brand img { height: 44px; }
}
.nav-links { display: flex; gap: 4px; margin-left: auto; align-items: center; }
.nav-links > a,
.nav-menu-trigger {
  position: relative;
  padding: 8px 13px;
  font-size: 15px;
  color: var(--muted);
  letter-spacing: 1px;
  transition: color 180ms ease;
}
.nav-menu-trigger {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 0;
  background: transparent;
  font-family: var(--font-cn);
  line-height: inherit;
  cursor: pointer;
}
.nav-links > a::after,
.nav-menu-trigger::after {
  content: "";
  position: absolute;
  left: 13px; right: 13px; bottom: 2px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--blue));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms var(--ease-out);
}
.nav-links > a:hover,
.nav-menu-trigger:hover,
.nav-item:focus-within > .nav-menu-trigger { color: var(--ink); }
.nav-links > a:hover::after,
.nav-menu-trigger:hover::after,
.nav-item:focus-within > .nav-menu-trigger::after { transform: scaleX(1); }
.nav-links > a.active,
.nav-menu-trigger.active { color: #fff; }
.nav-links > a.active::after,
.nav-menu-trigger.active::after { transform: scaleX(1); box-shadow: 0 0 12px rgba(69, 216, 255, 0.6); }
.nav-item {
  height: var(--nav-h);
  display: flex;
  align-items: center;
}
.nav-caret {
  width: 7px;
  height: 7px;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform 180ms ease;
}
.nav-item:hover .nav-caret,
.nav-item:focus-within .nav-caret { transform: translateY(2px) rotate(225deg); }
.mega-menu {
  position: fixed;
  z-index: 110;
  top: var(--nav-h);
  left: 50%;
  width: min(1180px, calc(100vw - 48px));
  padding: 26px 26px 22px;
  border: 1px solid rgba(69, 216, 255, 0.18);
  border-top: 1px solid rgba(69, 216, 255, 0.55);
  border-radius: 0;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 16px 100%, 0 calc(100% - 16px));
  background:
    radial-gradient(560px 140px at 50% 0%, rgba(46, 139, 255, 0.14), transparent 70%),
    linear-gradient(160deg, rgba(7, 26, 50, 0.97), rgba(3, 12, 24, 0.985));
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate(-50%, 12px);
  transition: opacity 180ms ease, visibility 180ms ease, transform 240ms var(--ease-out);
}
/* 顶部扫描光束（展开时划过） */
.mega-menu::after {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan) 30%, #bdf1ff 50%, var(--cyan) 70%, transparent);
  background-size: 200% 100%;
  filter: drop-shadow(0 0 8px rgba(69, 216, 255, 0.8));
  opacity: 0;
  pointer-events: none;
}
.nav-item:hover > .mega-menu::after,
.nav-item:focus-within > .mega-menu::after,
.nav-item.open > .mega-menu::after {
  animation: megaSweep 900ms var(--ease-out) both;
}
@keyframes megaSweep {
  0% { opacity: 1; background-position: 200% 0; }
  100% { opacity: 0.55; background-position: -200% 0; }
}
/* 背景网格 */
.mega-menu::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(69,216,255,.05) 1px, transparent 1px), linear-gradient(rgba(69,216,255,.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(120% 90% at 50% 0%, #000 20%, transparent 90%);
  -webkit-mask-image: radial-gradient(120% 90% at 50% 0%, #000 20%, transparent 90%);
}
.mega-grid { position: relative; display: grid; gap: 8px; }
.foundation-menu .mega-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.core-menu .mega-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-auto-rows: 1fr;
  align-items: stretch;
}
.core-menu .mega-group { height: 100%; }
/* 分组：无边框列 + 发光竖向分隔线 */
.mega-group {
  min-width: 0;
  padding: 4px 18px;
  border: 0;
  border-radius: 0;
  background: transparent;
  position: relative;
}
.mega-group + .mega-group::before {
  content: "";
  position: absolute;
  left: 0; top: 6%;
  height: 88%;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(69, 216, 255, 0.28), transparent);
}
.mega-group-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  color: #eaf6ff;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 2px;
  position: relative;
}
/* 标题下方渐变光条 */
.mega-group-title::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 34px; height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  box-shadow: 0 0 8px rgba(69, 216, 255, 0.6);
  transition: width 260ms var(--ease-out);
}
.mega-group:hover .mega-group-title::after { width: 70%; }
/* 图标：切角 HUD 徽标 */
.menu-icon {
  width: 30px;
  height: 30px;
  flex: 0 0 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(69, 216, 255, 0.4);
  border-radius: 0;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
  background: linear-gradient(145deg, rgba(46,139,255,.28), rgba(69,216,255,.06));
  color: var(--cyan);
  font: 600 12px/1 var(--font-num);
  letter-spacing: 1px;
  text-shadow: 0 0 8px rgba(69, 216, 255, 0.7);
  transition: transform 200ms ease, box-shadow 200ms ease;
}
.mega-group:hover .menu-icon { transform: translateY(-1px) scale(1.05); }
.mega-items { display: grid; gap: 2px; }
.mega-items a {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 34px;
  padding: 7px 10px 7px 14px;
  border-radius: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
  position: relative;
  transition: color 160ms ease, background 160ms ease, transform 200ms var(--ease-out);
}
/* 左侧光条（悬停点亮） */
.mega-items a::before {
  content: "";
  position: absolute;
  left: 0; top: 20%;
  height: 60%;
  width: 2px;
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(69, 216, 255, 0.8);
  transform: scaleY(0);
  transform-origin: center;
  transition: transform 200ms var(--ease-out);
}
/* 右侧箭头（悬停滑入） */
.mega-items a::after {
  content: "›";
  margin-left: auto;
  color: var(--cyan);
  font-size: 15px;
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 180ms ease, transform 200ms var(--ease-out);
}
.mega-items a:hover,
.mega-items a:focus-visible {
  color: #fff;
  background: linear-gradient(90deg, rgba(69, 216, 255, 0.14), rgba(69, 216, 255, 0.02) 70%, transparent);
  transform: translateX(4px);
  text-shadow: 0 0 10px rgba(69, 216, 255, 0.35);
}
.mega-items a:hover::before,
.mega-items a:focus-visible::before { transform: scaleY(1); }
.mega-items a:hover::after,
.mega-items a:focus-visible::after { opacity: 1; transform: translateX(0); }
.mega-items a.current { color: var(--cyan); background: rgba(69,216,255,.08); }
.mega-items a.current::before { transform: scaleY(1); }
@media (min-width: 1121px) {
  .nav-item:hover > .mega-menu,
  .nav-item:focus-within > .mega-menu {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translate(-50%, 0);
  }
}
.nav-toggle {
  display: none;
  margin-left: auto;
  padding: 8px;
  border: 0;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px;
  background: var(--ink); margin: 5px 0;
  transition: transform 200ms ease, opacity 200ms ease;
}

@media (max-width: 1120px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed;
    top: var(--nav-h); left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(4, 14, 28, 0.97);
    border-bottom: 1px solid var(--line);
    padding: 12px 24px 20px;
    gap: 4px;
    max-height: calc(100vh - var(--nav-h));
    overflow-y: auto;
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: transform 250ms var(--ease-out), opacity 250ms ease;
  }
  .nav-links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav-links > a,
  .nav-menu-trigger { width: 100%; padding: 12px 4px; border-bottom: 1px dashed rgba(72,160,255,.12); text-align: left; }
  .nav-links > a::after,
  .nav-menu-trigger::after { display: none; }
  .nav-item { height: auto; display: block; }
  .nav-menu-trigger { justify-content: space-between; }
  .nav-item.open .nav-caret { transform: translateY(2px) rotate(225deg); }
  .mega-menu {
    position: static;
    display: none;
    width: 100%;
    padding: 12px 0 4px;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    backdrop-filter: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
    transition: none;
  }
  .nav-item.open > .mega-menu { display: block; }
  .mega-menu::before { display: none; }
  .foundation-menu .mega-grid,
  .core-menu .mega-grid { grid-template-columns: 1fr; }
  .core-menu .mega-grid { grid-auto-rows: auto; }
  .core-menu .mega-group { height: auto; }
  .mega-group { margin-bottom: 10px; padding: 4px 6px; }
  .mega-group + .mega-group::before { display: none; }
  .mega-menu { clip-path: none; }
  .mega-menu::after { display: none; }
}

/* 右侧悬浮联系入口 */
.floating-contact {
  position: fixed;
  z-index: 90;
  top: 50%;
  right: clamp(12px, 1.8vw, 28px);
  width: 52px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 15px 0 13px;
  border: 1px solid rgba(69, 216, 255, 0.46);
  border-radius: 5px;
  background:
    linear-gradient(160deg, rgba(15, 54, 91, 0.94), rgba(4, 22, 44, 0.96));
  color: #eefaff;
  box-shadow: 0 14px 34px rgba(0, 8, 24, 0.38), inset 0 0 20px rgba(69, 216, 255, 0.06);
  backdrop-filter: blur(12px);
  transform: translateY(-50%);
  transition: transform 220ms var(--ease-out), border-color 220ms ease, box-shadow 220ms ease;
}
.floating-contact:hover {
  border-color: var(--cyan);
  color: #fff;
  box-shadow: 0 16px 38px rgba(0, 8, 24, 0.5), 0 0 22px rgba(69, 216, 255, 0.18);
  transform: translate(-4px, -50%);
}
.floating-contact:focus-visible { outline: 2px solid var(--cyan); outline-offset: 4px; }
.floating-contact-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(69, 216, 255, 0.9);
}
.floating-contact-label {
  writing-mode: vertical-rl;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 3px;
}
.floating-contact-arrow {
  color: var(--cyan);
  font: 600 16px/1 var(--font-num);
}
@media (max-width: 720px) {
  .floating-contact {
    top: auto;
    right: 14px;
    bottom: 18px;
    width: auto;
    flex-direction: row;
    gap: 8px;
    padding: 11px 15px;
    border-radius: 999px;
    transform: none;
  }
  .floating-contact:hover { transform: translateY(-2px); }
  .floating-contact-label { writing-mode: horizontal-tb; font-size: 13px; letter-spacing: 1px; }
  .floating-contact-arrow { font-size: 14px; }
}

/* ============================================================
   区块通用
   ============================================================ */
section { position: relative; padding: 96px 0; }

.section-head { margin-bottom: 52px; }
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 4px;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-eyebrow::before {
  content: "";
  width: 26px; height: 1px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}
.section-title {
  display: flex;
  align-items: baseline;
  gap: 18px;
  flex-wrap: wrap;
}
.section-title h2 {
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 600;
  color: #fff;
  letter-spacing: 2px;
}
.section-title .en {
  font-family: var(--font-num);
  font-size: 15px;
  letter-spacing: 3px;
  color: var(--dim);
  text-transform: uppercase;
}
.section-desc {
  margin-top: 14px;
  max-width: 760px;
  color: var(--muted);
  font-size: 15.5px;
}

/* 顶部发光发丝线 */
.section-rule {
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: min(1200px, calc(100% - 48px));
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
}

/* ============================================================
   HUD 面板（卡片）
   ============================================================ */
.panel {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 6px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: transform 200ms ease, border-color 200ms ease, box-shadow 200ms ease;
}
.panel:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: var(--glow);
}
/* HUD 角括号：左右上角 */
.panel::before,
.panel::after {
  content: "";
  position: absolute;
  width: 14px; height: 14px;
  border-color: var(--cyan);
  border-style: solid;
  opacity: 0;
  transition: opacity 200ms ease;
  pointer-events: none;
}
.panel::before { top: -1px; left: -1px; border-width: 2px 0 0 2px; border-radius: 6px 0 0 0; }
.panel::after { bottom: -1px; right: -1px; border-width: 0 2px 2px 0; border-radius: 0 0 6px 0; }
.panel:hover::before, .panel:hover::after { opacity: 1; }

/* ============================================================
   按钮
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 34px;
  font-size: 15px;
  letter-spacing: 2px;
  border-radius: 3px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 150ms ease, box-shadow 200ms ease, background 200ms ease, color 200ms ease;
  font-family: var(--font-cn);
}
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: linear-gradient(135deg, #1f7dff, #35c3ff);
  color: #fff;
  box-shadow: 0 4px 22px rgba(46, 139, 255, 0.35);
}
.btn-primary:hover { box-shadow: 0 6px 30px rgba(69, 216, 255, 0.5); }
.btn-ghost {
  border-color: var(--line-strong);
  color: var(--cyan);
  background: rgba(69, 216, 255, 0.05);
}
.btn-ghost:hover { background: rgba(69, 216, 255, 0.14); box-shadow: var(--glow); }
.btn .arrow { transition: transform 200ms var(--ease-out); }
.btn:hover .arrow { transform: translateX(4px); }

/* ============================================================
   Hero（各页首屏）
   ============================================================ */
.hero {
  position: relative;
  isolation: isolate;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 64px) 0 96px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}
.hero-bg img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(4, 16, 31, 0.94) 0%, rgba(4, 16, 31, 0.72) 42%, rgba(4, 16, 31, 0.38) 100%),
    linear-gradient(180deg, rgba(4, 16, 31, 0.5), transparent 30%, transparent 70%, var(--bg-0));
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 13.5px;
  letter-spacing: 5px;
  color: var(--cyan);
  border: 1px solid var(--line-strong);
  padding: 7px 18px;
  border-radius: 2px;
  background: rgba(69, 216, 255, 0.06);
  margin-bottom: 26px;
}
.hero-tag i {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: pulse 2.2s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: 0.35; } }
.hero h1 {
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.28;
  font-weight: 600;
  color: #fff;
  letter-spacing: 3px;
  margin-bottom: 24px;
  max-width: 720px;
}
.hero h1 .hl {
  background: linear-gradient(100deg, #63e0ff 10%, #2e8bff 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  max-width: 640px;
  color: var(--muted);
  font-size: 16.5px;
  margin-bottom: 40px;
}
.hero-actions { display: flex; gap: 18px; flex-wrap: wrap; }

/* Hero 数据条 */
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  margin-top: 64px;
  max-width: 860px;
}
.hero-stat {
  background: rgba(9, 28, 54, 0.85);
  padding: 20px 24px;
  backdrop-filter: blur(6px);
}
.hero-stat .num {
  font-family: var(--font-num);
  font-size: 38px;
  font-weight: 600;
  color: var(--cyan);
  line-height: 1.1;
  text-shadow: 0 0 18px rgba(69, 216, 255, 0.45);
}
.hero-stat .num sup { font-size: 18px; color: var(--blue); margin-left: 2px; }
.hero-stat .label { font-size: 13.5px; color: var(--muted); letter-spacing: 2px; margin-top: 4px; }

/* Hero 子页（详情页横幅） */
.hero-page { min-height: 64vh; }
.hero-page h1 { font-size: clamp(30px, 4vw, 46px); }
@media (max-width: 620px) {
  .partner-page-hero .hero-tag {
    gap: 9px;
    max-width: 100%;
    padding-inline: 14px;
    font-size: 10.5px;
    letter-spacing: 2px;
    white-space: nowrap;
  }
}
.breadcrumb {
  margin-top: 18px;
  font-size: 13.5px;
  color: var(--dim);
  letter-spacing: 1px;
}
.breadcrumb a { color: var(--muted); transition: color 150ms ease; }
.breadcrumb a:hover { color: var(--cyan); }

/* 子项占位详情页 */
.detail-hero { min-height: 58vh; }
.detail-hero .hero-bg img { filter: saturate(.92) contrast(1.04); }
.detail-placeholder-section { padding-top: 72px; min-height: 42vh; }
.detail-empty {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 34px;
  overflow: hidden;
}
.detail-empty::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(110deg, rgba(69,216,255,.06), transparent 52%);
}
.detail-empty-icon {
  position: relative;
  width: 68px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: rgba(69,216,255,.07);
  color: var(--cyan);
  font: 600 18px/1 var(--font-num);
  letter-spacing: 1px;
  box-shadow: var(--glow);
}
.detail-empty-copy { position: relative; }
.detail-empty-copy .state {
  margin-bottom: 5px;
  color: var(--cyan);
  font: 600 12px/1.5 var(--font-num);
  letter-spacing: 3px;
  text-transform: uppercase;
}
.detail-empty-copy h2 { margin-bottom: 6px; color: #fff; font-size: 24px; }
.detail-empty-copy p { max-width: 660px; color: var(--muted); font-size: 14px; }
@media (max-width: 720px) {
  .detail-empty { grid-template-columns: 1fr; padding: 26px 22px; }
  .detail-empty .btn { justify-self: start; }
}

/* ============================================================
   入场动效（页面加载 + 滚动揭示）
   ============================================================ */
@keyframes riseIn {
  from { opacity: 0; transform: translateY(26px); }
  to { opacity: 1; transform: translateY(0); }
}
.hero .anim {
  animation: riseIn 560ms var(--ease-out) both;
}
.hero .d1 { animation-delay: 60ms; }
.hero .d2 { animation-delay: 160ms; }
.hero .d3 { animation-delay: 260ms; }
.hero .d4 { animation-delay: 360ms; }
.hero .d5 { animation-delay: 460ms; }

.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 500ms var(--ease-out), transform 500ms var(--ease-out);
  will-change: auto;
}
/* 仅在脚本已安装观察器后启用入场效果，正文默认可读。 */
.reveal:where(.reveal-pending):where(:not(.in)) { opacity: 0; transform: translateY(22px); will-change: opacity, transform; }
.reveal.in { opacity: 1; transform: translateY(0); will-change: auto; }
.reveal[data-delay="1"] { transition-delay: 90ms; }
.reveal[data-delay="2"] { transition-delay: 180ms; }
.reveal[data-delay="3"] { transition-delay: 270ms; }

/* 静态详情的正文不依赖 JS 揭示；脚本失败或禁用时仍完整可读。 */
.static-detail .reveal { opacity: 1; transform: none; will-change: auto; }
.static-detail .product-swiper:not(.swiper-initialized) .swiper-wrapper { display: grid; gap: 20px; }
.static-detail .product-swiper:not(.swiper-initialized) .swiper-slide { width: 100%; opacity: 1; }
.static-detail .product-swiper:not(.swiper-initialized) .swiper-button-prev,
.static-detail .product-swiper:not(.swiper-initialized) .swiper-button-next,
.static-detail .product-swiper:not(.swiper-initialized) .swiper-pagination { display: none; }
.swiper-gallery:not(.swiper-initialized) .swiper-wrapper { display: grid; gap: 20px; }
.swiper-gallery:not(.swiper-initialized) .swiper-slide { width: 100%; }
.swiper-gallery:not(.swiper-initialized) .swiper-button-prev,
.swiper-gallery:not(.swiper-initialized) .swiper-button-next,
.swiper-gallery:not(.swiper-initialized) .swiper-pagination { display: none; }
@media (min-width: 721px) {
  /* 避开右侧固定的联系入口，保证轮播箭头可点击。 */
  .static-detail .product-swiper .swiper-button-next { right: 72px; }
  .static-detail .product-swiper .swiper-button-prev { left: 72px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero .anim { animation: none; opacity: 1; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-tag i { animation: none; }
}

/* ============================================================
   网格布局
   ============================================================ */
.grid { display: grid; gap: 20px; }
.g-2 { grid-template-columns: repeat(2, 1fr); }
.g-3 { grid-template-columns: repeat(3, 1fr); }
.g-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1000px) {
  .g-4 { grid-template-columns: repeat(2, 1fr); }
  .g-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .g-2, .g-3, .g-4 { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  section { padding: 64px 0; }
}

/* ============================================================
   首页：双业务主线大卡
   ============================================================ */
.lane-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 900px) { .lane-cards { grid-template-columns: 1fr; } }
.lane-card {
  position: relative;
  min-height: 430px;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  transition: border-color 220ms ease, box-shadow 220ms ease, transform 220ms ease;
}
.lane-card:hover {
  border-color: var(--line-strong);
  box-shadow: var(--glow);
  transform: translateY(-5px);
}
.lane-card img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 600ms var(--ease-out);
}
.lane-card:hover img { transform: scale(1.05); }
.lane-card .shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4,16,31,0.05) 20%, rgba(4,16,31,0.82) 72%, rgba(4,16,31,0.96));
}
.lane-body { position: relative; padding: 30px 34px 34px; }
.lane-no {
  font-family: var(--font-num);
  font-size: 14px;
  letter-spacing: 4px;
  color: var(--cyan);
  margin-bottom: 10px;
}
.lane-body h3 { font-size: 26px; color: #fff; letter-spacing: 2px; margin-bottom: 12px; font-weight: 600; }
.lane-body p { color: var(--muted); font-size: 14.5px; margin-bottom: 16px; }
.lane-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.lane-tags span {
  font-size: 12.5px;
  letter-spacing: 1px;
  color: var(--cyan);
  border: 1px solid rgba(69, 216, 255, 0.3);
  background: rgba(69, 216, 255, 0.07);
  padding: 3px 12px;
  border-radius: 2px;
}
.lane-link {
  font-size: 14px;
  color: var(--ink);
  letter-spacing: 2px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.lane-link .arrow { color: var(--cyan); transition: transform 200ms var(--ease-out); }
.lane-card:hover .lane-link .arrow { transform: translateX(5px); }

/* ============================================================
   核心能力卡片
   ============================================================ */
.cap-card {
  padding: 26px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.cap-icon {
  width: 52px; height: 52px;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, rgba(46, 139, 255, 0.18), rgba(69, 216, 255, 0.08));
  border: 1px solid var(--line);
  flex-shrink: 0;
}
.cap-icon img { width: 30px; height: 30px; object-fit: contain; }
.cap-icon .glyph {
  font-size: 22px;
  font-weight: 600;
  color: var(--cyan);
  letter-spacing: 0;
  text-shadow: 0 0 14px rgba(69, 216, 255, 0.6);
}
.cap-card h3 { font-size: 18.5px; color: #fff; font-weight: 600; letter-spacing: 1px; }
.cap-card .cap-sub {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--dim);
  text-transform: uppercase;
}
.cap-card p { font-size: 13.5px; color: var(--muted); line-height: 1.7; }
.cap-card.new { border-color: rgba(69, 216, 255, 0.4); }
.cap-card .badge-new {
  position: absolute;
  top: 14px; right: 14px;
  font-size: 11px;
  letter-spacing: 2px;
  color: #04101f;
  background: linear-gradient(90deg, var(--cyan), #7ae7ff);
  padding: 2px 10px;
  border-radius: 2px;
  font-weight: 600;
}

/* ============================================================
   案例卡片
   ============================================================ */
.case-card { overflow: hidden; border-radius: 6px; }
.case-card .shot {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.case-card .shot img { width: 100%; height: 100%; object-fit: cover; transition: transform 600ms var(--ease-out); }
.case-card:hover .shot img { transform: scale(1.06); }
.case-card .shot::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(4, 16, 31, 0.55));
  pointer-events: none;
}
.case-card figcaption { padding: 18px 20px 20px; }
.case-card h3 { font-size: 16.5px; color: #fff; font-weight: 600; letter-spacing: 1px; }
.case-card .region {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--cyan);
  margin-top: 6px;
  text-transform: uppercase;
}

/* ============================================================
   截图展示框（HUD 风格，详情页大图）
   ============================================================ */
.shot-frame {
  position: relative;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  padding: 10px;
  background: rgba(8, 24, 48, 0.6);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.5), inset 0 0 40px rgba(46, 139, 255, 0.05);
}
.shot-frame img { width: 100%; border-radius: 4px; }
.shot-frame .frame-tag {
  position: absolute;
  top: -13px; left: 22px;
  font-family: var(--font-num);
  font-size: 12.5px;
  letter-spacing: 3px;
  color: var(--cyan);
  background: var(--bg-0);
  border: 1px solid var(--line-strong);
  padding: 2px 14px;
  border-radius: 2px;
  text-transform: uppercase;
}
.shot-frame .frame-corner {
  position: absolute;
  width: 22px; height: 22px;
  border: 2px solid var(--cyan);
  filter: drop-shadow(0 0 6px rgba(69, 216, 255, 0.7));
}
.shot-frame .fc-tl { top: -2px; left: -2px; border-right: 0; border-bottom: 0; border-radius: 8px 0 0 0; }
.shot-frame .fc-tr { top: -2px; right: -2px; border-left: 0; border-bottom: 0; border-radius: 0 8px 0 0; }
.shot-frame .fc-bl { bottom: -2px; left: -2px; border-right: 0; border-top: 0; border-radius: 0 0 0 8px; }
.shot-frame .fc-br { bottom: -2px; right: -2px; border-left: 0; border-top: 0; border-radius: 0 0 8px 0; }
.shot-caption {
  margin-top: 14px;
  text-align: center;
  font-size: 13.5px;
  color: var(--muted);
  letter-spacing: 1px;
}

/* ============================================================
   四预卡片（数字孪生页）
   ============================================================ */
.pre-card { padding: 30px 28px; }
.pre-card .pre-no {
  font-family: var(--font-num);
  font-size: 44px;
  font-weight: 600;
  color: transparent;
  -webkit-text-stroke: 1px rgba(69, 216, 255, 0.55);
  line-height: 1;
  margin-bottom: 14px;
}
.pre-card h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 21px;
  color: #fff;
  margin-bottom: 4px;
  letter-spacing: 2px;
}
.pre-card .pre-en {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--dim);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.pre-card .pre-role {
  display: inline-block;
  font-size: 12.5px;
  color: var(--cyan);
  letter-spacing: 2px;
  border-left: 2px solid var(--cyan);
  padding-left: 10px;
  margin-bottom: 12px;
}
.pre-card p { font-size: 14px; color: var(--muted); line-height: 1.8; }

/* 业务线布局：文 + 图 */
.lane-detail {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 52px;
  align-items: center;
}
@media (max-width: 980px) { .lane-detail { grid-template-columns: 1fr; gap: 36px; } }
.pre-list { display: flex; flex-direction: column; gap: 14px; }
.pre-item {
  display: flex;
  gap: 16px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  border-radius: 4px;
  background: rgba(10, 30, 58, 0.35);
  transition: transform 200ms ease, border-color 200ms ease, background 200ms ease;
}
.pre-item:hover { transform: translateX(6px); border-left-color: var(--cyan); background: rgba(13, 42, 78, 0.55); }
.pre-item .k {
  flex-shrink: 0;
  font-size: 17px;
  font-weight: 600;
  color: var(--cyan);
  letter-spacing: 2px;
  line-height: 1.75;
}
.pre-item .v b { display: block; color: #fff; font-size: 15.5px; margin-bottom: 3px; letter-spacing: 1px; }
.pre-item .v span { font-size: 13.5px; color: var(--muted); }

/* ============================================================
   技术底座 / 优势列
   ============================================================ */
.tech-card { padding: 28px 26px; text-align: left; }
.tech-card .tech-key {
  font-family: var(--font-num);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--cyan);
  text-shadow: 0 0 16px rgba(69, 216, 255, 0.5);
  margin-bottom: 8px;
}
.tech-card h3 { font-size: 17px; color: #fff; margin-bottom: 10px; letter-spacing: 1px; }
.tech-card p { font-size: 13.5px; color: var(--muted); }

/* ============================================================
   质量闭环流程
   ============================================================ */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; align-items: stretch; }
@media (max-width: 860px) { .flow { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .flow { grid-template-columns: 1fr; } }
.flow-step {
  position: relative;
  padding: 30px 26px;
  border: 1px solid var(--line);
  background: var(--panel);
  margin: 0 12px;
  border-radius: 6px;
  text-align: center;
}
.flow-step .step-no {
  font-family: var(--font-num);
  font-size: 15px;
  letter-spacing: 2px;
  color: var(--cyan);
  margin-bottom: 10px;
}
.flow-step h3 { font-size: 18px; color: #fff; letter-spacing: 2px; margin-bottom: 8px; }
.flow-step p { font-size: 13px; color: var(--muted); }
.flow-step::after {
  content: "›";
  position: absolute;
  right: -19px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 26px;
  color: var(--cyan);
  text-shadow: 0 0 10px rgba(69, 216, 255, 0.7);
  z-index: 2;
}
.flow-step:last-child::after { display: none; }
@media (max-width: 860px) {
  .flow-step:nth-child(2)::after { display: none; }
}

/* ============================================================
   合作伙伴独立页 / 知识产权证书墙
   ============================================================ */
.partner-card {
  flex: 0 0 286px;
  min-height: 106px;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 14px;
  padding: 15px;
  border: 1px solid rgba(136, 184, 225, 0.18);
  border-radius: 6px;
  background: linear-gradient(145deg, rgba(17, 55, 94, 0.94), rgba(8, 31, 61, 0.96));
  box-shadow: 0 8px 24px rgba(0, 9, 25, 0.22);
  transition: transform 200ms ease, border-color 200ms ease, box-shadow 200ms ease;
}
.partner-card.wide { flex-basis: 342px; }
.partner-card:hover {
  transform: translateY(-3px);
  border-color: rgba(69, 216, 255, 0.5);
  box-shadow: 0 12px 30px rgba(0, 9, 25, 0.35), 0 0 20px rgba(69, 216, 255, 0.08);
}
.partner-mark {
  width: 62px;
  height: 62px;
  display: grid;
  place-items: center;
  flex: none;
  border: 1px solid rgba(69, 216, 255, 0.32);
  border-radius: 50%;
  background: radial-gradient(circle at 32% 25%, rgba(69, 216, 255, 0.2), rgba(46, 139, 255, 0.06));
  color: var(--cyan);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 1px;
  box-shadow: inset 0 0 20px rgba(69, 216, 255, 0.06);
}
.partner-mark.enterprise {
  border-radius: 6px;
  color: #9ec9ff;
  border-color: rgba(87, 153, 255, 0.32);
  background: linear-gradient(145deg, rgba(46, 139, 255, 0.18), rgba(69, 216, 255, 0.04));
}
.partner-mark.has-logo {
  width: 78px;
  border-radius: 6px;
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.96);
  padding: 7px;
  box-shadow: none;
}
.partner-mark.has-logo img { width: 100%; height: 100%; object-fit: contain; }
.partner-mark.has-logo.dark-logo {
  width: 92px;
  background: #071b34;
  border-color: rgba(69, 216, 255, 0.32);
  padding: 9px 7px;
}
.partner-mark.has-logo.wide-logo {
  width: 92px;
  padding: 5px;
}
.partner-info { min-width: 0; }
.partner-info .partner-type {
  display: block;
  margin-bottom: 6px;
  color: var(--cyan);
  font: 600 10px/1 var(--font-num);
  letter-spacing: 1.4px;
  text-transform: uppercase;
  opacity: 0.82;
}
.partner-info h4 {
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.45;
}

/* 合作伙伴独立页 */
.partner-ecosystem {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.ecosystem-card { min-height: 192px; padding: 28px; }
.ecosystem-card .eco-no {
  color: var(--cyan);
  font: 600 12px/1 var(--font-num);
  letter-spacing: 3px;
}
.ecosystem-card .eco-value {
  margin: 18px 0 10px;
  color: #fff;
  font: 700 28px/1.15 var(--font-cn);
  letter-spacing: 2px;
  text-shadow: 0 0 18px rgba(69, 216, 255, 0.3);
}
.ecosystem-card h3 { margin-bottom: 8px; color: var(--ink); font-size: 18px; }
.ecosystem-card p { color: var(--muted); font-size: 13.5px; line-height: 1.75; }
.partner-directory { display: grid; gap: 30px; }
.directory-group {
  position: relative;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background:
    linear-gradient(145deg, rgba(13, 42, 78, 0.72), rgba(5, 20, 42, 0.86)),
    repeating-linear-gradient(90deg, transparent 0 79px, rgba(69, 216, 255, 0.025) 80px);
}
.directory-group::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 26px;
  width: 90px;
  height: 2px;
  background: var(--cyan);
  box-shadow: 0 0 14px rgba(69, 216, 255, 0.6);
}
.directory-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 20px;
}
.directory-title { display: flex; align-items: baseline; flex-wrap: wrap; gap: 12px; }
.directory-title h3 { color: #fff; font-size: 21px; font-weight: 600; }
.directory-title span,
.directory-count {
  color: var(--cyan);
  font: 600 11px/1 var(--font-num);
  letter-spacing: 2px;
  text-transform: uppercase;
}
.directory-count { color: var(--muted); }
.directory-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.directory-grid .partner-card,
.directory-grid .partner-card.wide { min-width: 0; min-height: 112px; width: auto; }
.directory-grid .partner-card:hover { transform: translateY(-3px); }
.cooperation-modes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.cooperation-mode { padding: 30px 28px; }
.cooperation-mode .mode-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  border: 1px solid rgba(69, 216, 255, 0.35);
  border-radius: 5px;
  color: var(--cyan);
  background: rgba(69, 216, 255, 0.06);
  font: 700 14px/1 var(--font-num);
  letter-spacing: 1px;
}
.cooperation-mode h3 { color: #fff; font-size: 18px; margin-bottom: 10px; }
.cooperation-mode p { color: var(--muted); font-size: 14px; line-height: 1.75; }
@media (max-width: 980px) {
  .directory-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 760px) {
  .partner-ecosystem,
  .cooperation-modes { grid-template-columns: 1fr; }
  .ecosystem-card { min-height: 0; }
}
@media (max-width: 620px) {
  .directory-group { padding: 22px 16px 16px; }
  .directory-group::before { left: 16px; }
  .directory-head { align-items: center; }
  .directory-title { display: grid; gap: 7px; }
  .directory-grid { grid-template-columns: 1fr; }
  .directory-grid .partner-card,
  .directory-grid .partner-card.wide { min-height: 102px; }
}
.ipr-wall { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 1000px) { .ipr-wall { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 720px) { .ipr-wall { grid-template-columns: repeat(2, 1fr); } }
.ipr-card { padding: 12px; text-align: center; }
.ipr-card .cert {
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border-radius: 3px;
  border: 1px solid var(--line);
  margin-bottom: 12px;
  background: #fff;
}
.ipr-card .cert img { width: 100%; height: 100%; object-fit: contain; transition: transform 500ms var(--ease-out); }
.ipr-card:hover .cert img { transform: scale(1.05); }
.ipr-card figcaption { font-size: 13px; color: var(--muted); line-height: 1.6; padding: 0 4px; }
.ipr-card .type {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--cyan);
  border: 1px solid rgba(69, 216, 255, 0.35);
  border-radius: 2px;
  padding: 1px 8px;
  margin-bottom: 6px;
}

/* ============================================================
   关于页
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 48px;
  align-items: center;
}
@media (max-width: 900px) { .about-grid { grid-template-columns: 1fr; } }
.about-text p { color: var(--muted); margin-bottom: 16px; font-size: 15.5px; text-align: justify; }
.about-quote {
  position: relative;
  padding: 34px 36px;
  border-radius: 6px;
  background: linear-gradient(145deg, rgba(46, 139, 255, 0.12), rgba(69, 216, 255, 0.04));
  border: 1px solid var(--line-strong);
}
.about-quote::before {
  content: "“";
  position: absolute;
  top: -6px; left: 20px;
  font-size: 76px;
  line-height: 1;
  color: var(--cyan);
  opacity: 0.5;
  font-family: Georgia, serif;
}
.about-quote p { font-size: 14.5px; color: var(--ink); position: relative; z-index: 1; }

.region-chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.region-chips span {
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 5px 16px;
  background: rgba(13, 42, 78, 0.5);
  transition: border-color 180ms ease, color 180ms ease;
}
.region-chips span:hover { border-color: var(--line-strong); color: var(--cyan); }

/* 联系信息 */
.contact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-card { padding: 28px 26px; }
.contact-card .c-label {
  font-size: 13px;
  letter-spacing: 3px;
  color: var(--dim);
  margin-bottom: 10px;
}
.contact-card .c-value {
  font-family: var(--font-num);
  font-size: 21px;
  color: #fff;
  letter-spacing: 1px;
}
.contact-card .c-value.cn { font-family: var(--font-cn); font-size: 17px; line-height: 1.7; }
.contact-card .c-note { font-size: 13px; color: var(--muted); margin-top: 8px; }
.wecom-card {
  position: relative;
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 42px;
  min-height: 254px;
  padding: 30px 34px;
  overflow: hidden;
  background:
    radial-gradient(400px 220px at 82% 48%, rgba(69, 216, 255, 0.12), transparent 70%),
    linear-gradient(135deg, rgba(18, 58, 99, 0.86), rgba(7, 27, 54, 0.94));
}
.wecom-card::before {
  content: "WE COM";
  position: absolute;
  right: 248px;
  bottom: -16px;
  color: rgba(69, 216, 255, 0.04);
  font: 700 72px/1 var(--font-num);
  letter-spacing: 8px;
  pointer-events: none;
}
.wecom-copy { position: relative; z-index: 1; max-width: 680px; }
.wecom-card .c-label { color: var(--cyan); }
.wecom-desc {
  max-width: 610px;
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.8;
}
.wecom-tags { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 18px; }
.wecom-tags span {
  padding: 5px 12px;
  border: 1px solid rgba(69, 216, 255, 0.25);
  border-radius: 2px;
  color: #a9dff1;
  background: rgba(69, 216, 255, 0.05);
  font-size: 11px;
  letter-spacing: 1px;
}
.wecom-qr {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 10px 10px 8px;
  border: 1px solid rgba(69, 216, 255, 0.35);
  border-radius: 7px;
  background: #fff;
  box-shadow: 0 14px 36px rgba(0, 7, 22, 0.38), 0 0 24px rgba(69, 216, 255, 0.11);
  text-align: center;
}
.wecom-qr img { display: block; width: 190px; height: 190px; object-fit: contain; }
.wecom-qr figcaption {
  padding: 7px 4px 2px;
  color: #526172;
  font-size: 11px;
  letter-spacing: 1px;
}
@media (max-width: 900px) {
  .wecom-card { grid-template-columns: 1fr auto; gap: 24px; }
}
@media (max-width: 620px) {
  .wecom-card { grid-template-columns: 1fr; gap: 24px; padding: 26px 22px; }
  .wecom-card::before { display: none; }
  .wecom-copy { text-align: center; }
  .wecom-desc { margin-inline: auto; }
  .wecom-tags { justify-content: center; }
  .wecom-qr { justify-self: center; }
  .wecom-qr img { width: min(210px, 62vw); height: auto; aspect-ratio: 1; }
}

/* CTA 横带 */
.cta-band {
  position: relative;
  padding: 72px 0;
  text-align: center;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(700px 300px at 50% 0%, rgba(46, 139, 255, 0.14), transparent 70%),
    linear-gradient(180deg, rgba(8, 24, 48, 0.5), rgba(6, 18, 36, 0.5));
}
.cta-band h2 {
  font-size: clamp(24px, 3vw, 34px);
  color: #fff;
  letter-spacing: 3px;
  margin-bottom: 14px;
}
.cta-band p { color: var(--muted); margin-bottom: 32px; }
.cta-band .btn { margin: 0 8px 10px; }

/* ============================================================
   页脚
   ============================================================ */
footer { padding: 56px 0 0; border-top: 1px solid var(--line); background: rgba(3, 10, 20, 0.7); }
.foot-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 44px;
}
@media (max-width: 800px) { .foot-grid { grid-template-columns: 1fr; } }
.foot-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.foot-brand img { display: block; flex: 0 0 auto; width: 38px; height: 38px; object-fit: contain; }
.foot-brand b { font-size: 17px; color: #fff; letter-spacing: 3px; }
footer p.foot-desc { font-size: 13.5px; color: var(--dim); max-width: 380px; }
footer h4 {
  font-size: 14.5px;
  color: #fff;
  letter-spacing: 3px;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}
footer h4::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 28px; height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}
.foot-links { display: flex; flex-direction: column; gap: 10px; }
.foot-links a { font-size: 13.5px; color: var(--muted); transition: color 150ms ease, transform 150ms ease; }
.foot-links a:hover { color: var(--cyan); transform: translateX(3px); }
.foot-contact { display: flex; flex-direction: column; gap: 10px; font-size: 13.5px; color: var(--muted); }
.foot-contact b { color: var(--ink); font-weight: 500; }
.foot-bar {
  border-top: 1px solid rgba(72, 160, 255, 0.12);
  padding: 18px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 12.5px;
  color: var(--dim);
}
.foot-bar a { color: var(--dim); transition: color 150ms ease; }
.foot-bar a:hover { color: var(--cyan); }

/* 产品详情使用紧凑页脚，避免继承完整页脚的空白区域。 */
.product-footer {
  position: relative;
  padding: 28px 0 0;
  background: #030d19;
}
.product-footer::before {
  content: "";
  position: absolute;
  top: -1px; left: 50%;
  width: min(240px, 40%); height: 1px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, transparent, var(--product-accent, var(--cyan)), transparent);
}
.product-footer-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 24px;
}
.product-footer-brand { display: inline-flex; align-items: center; gap: 12px; min-width: 0; }
.product-footer-brand img { display: block; flex: 0 0 auto; width: 36px; height: 36px; object-fit: contain; }
.product-footer-brand > span { display: grid; gap: 5px; }
.product-footer-brand strong { color: #d9eaf9; font-size: 15px; font-weight: 500; letter-spacing: 1px; }
.product-footer-brand > span > span { color: #8fa6be; font-size: 12px; letter-spacing: 1px; }
.product-footer-links { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 24px; }
.product-footer-links a { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; color: #afc2d6; font-size: 13px; }
.product-footer-legal {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 24px;
  border-top: 1px solid rgba(126, 167, 207, .14);
  padding: 16px 0;
  color: #8fa6be;
  font-size: 12px;
  line-height: 1.8;
}
.product-footer-rights { display: inline-block; }
.product-footer-legal a { color: inherit; }
.product-footer a { transition: color 150ms ease; }
.product-footer a:hover { color: var(--product-accent, var(--cyan)); }
.product-footer a:focus-visible { outline: 2px solid var(--product-accent, var(--cyan)); outline-offset: 5px; border-radius: 3px; }
@media (max-width: 720px) {
  /* 为移动端固定联系入口留出空间，保证版权及备案链接可见、可点击。 */
  .product-footer { padding-bottom: calc(72px + env(safe-area-inset-bottom, 0px)); }
}
@media (max-width: 640px) {
  .product-footer-main { flex-direction: column; gap: 12px; padding-bottom: 16px; }
  .product-footer-brand strong { font-size: 14px; }
  .product-footer-links { justify-content: center; gap: 8px 24px; }
  .product-footer-legal { flex-direction: column; gap: 4px; text-align: center; }
}

/* ============================================================
   转场动画增强（科技感）
   ============================================================ */

/* 页面加载：顶部扫光条（一次性） */
.page-sweep {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  height: 3px;
  z-index: 999;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, var(--cyan) 45%, #a8ecff 50%, var(--cyan) 55%, transparent);
  background-size: 200% 100%;
  filter: drop-shadow(0 0 8px rgba(69, 216, 255, 0.8));
  animation: sweepAcross 1s var(--ease-out) 80ms both, sweepFade 1.4s ease 300ms both;
}
@keyframes sweepAcross {
  from { background-position: 200% 0; }
  to { background-position: -200% 0; }
}
@keyframes sweepFade { to { opacity: 0; } }

/* Hero 背景缓慢推进（Ken Burns 微动效） */
.hero-bg img { animation: kenburns 18s var(--ease-out) both; }
@keyframes kenburns {
  from { transform: scale(1.12); }
  to { transform: scale(1); }
}

/* Hero 高亮文字渐变流动 */
.hero h1 .hl {
  background: linear-gradient(100deg, #63e0ff, #2e8bff, #8beeff, #63e0ff);
  background-size: 220% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: gradFlow 5s linear infinite;
}
@keyframes gradFlow {
  from { background-position: 0% 0; }
  to { background-position: 220% 0; }
}

/* 进场统一使用上方 .reveal 的透明+位移过渡（纯 transform/opacity，GPU 合成，不触发重绘） */

/* 眉标横线伸长（进场时） */
.section-eyebrow::before {
  width: 0;
  transition: width 500ms var(--ease-out) 150ms;
}
.in .section-eyebrow::before, .section-head.in .section-eyebrow::before { width: 26px; }

/* ============================================================
   系统功能轮播（BIM 页）
   ============================================================ */
.carousel {
  position: relative;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: rgba(8, 24, 48, 0.6);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.5), inset 0 0 40px rgba(46, 139, 255, 0.05);
  overflow: hidden;
}
.car-stage {
  position: relative;
  aspect-ratio: 16 / 8.6;
  overflow: hidden;
  background: #02080f;
}
.car-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
}
.car-slide img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: top center;
}
/* 扫描切换动画：新图自左向右揭开 */
.car-slide.active {
  opacity: 1;
  pointer-events: auto;
  animation: slideScan 720ms var(--ease-out) both;
}
@keyframes slideScan {
  from { clip-path: inset(0 100% 0 0); }
  to { clip-path: inset(0 0 0 0); }
}
/* 扫描高光边缘 */
.car-slide.active::after {
  content: "";
  position: absolute;
  top: 0; bottom: 0;
  left: 0;
  width: 130px;
  background: linear-gradient(90deg, transparent, rgba(69, 216, 255, 0.25), rgba(168, 236, 255, 0.6), rgba(69, 216, 255, 0.25), transparent);
  filter: blur(2px);
  animation: slideEdge 720ms var(--ease-out) both;
  pointer-events: none;
}
@keyframes slideEdge {
  from { left: -130px; opacity: 1; }
  to { left: 100%; opacity: 0; }
}
/* 四角 HUD 括号 */
.car-corner {
  position: absolute;
  width: 26px; height: 26px;
  border: 2px solid var(--cyan);
  filter: drop-shadow(0 0 6px rgba(69, 216, 255, 0.7));
  z-index: 5;
  pointer-events: none;
}
.car-corner.tl { top: 10px; left: 10px; border-right: 0; border-bottom: 0; }
.car-corner.tr { top: 10px; right: 10px; border-left: 0; border-bottom: 0; }
.car-corner.bl { bottom: 10px; left: 10px; border-right: 0; border-top: 0; }
.car-corner.br { bottom: 10px; right: 10px; border-left: 0; border-top: 0; }

/* 编号 HUD（右上角） */
.car-counter {
  position: absolute;
  top: 18px; right: 52px;
  z-index: 6;
  font-family: var(--font-num);
  font-size: 15px;
  letter-spacing: 3px;
  color: var(--cyan);
  background: rgba(4, 16, 31, 0.75);
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  padding: 3px 12px;
  text-shadow: 0 0 10px rgba(69, 216, 255, 0.6);
}

/* 前后箭头 */
.car-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 7;
  width: 46px; height: 46px;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  background: rgba(4, 16, 31, 0.6);
  color: var(--cyan);
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 180ms ease, box-shadow 180ms ease, transform 150ms ease;
  backdrop-filter: blur(4px);
}
.car-btn:hover { background: rgba(69, 216, 255, 0.18); box-shadow: var(--glow); }
.car-btn:active { transform: translateY(-50%) scale(0.94); }
.car-prev { left: 18px; }
.car-next { right: 18px; }

/* 底部信息条 */
.car-bar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 22px;
  padding: 16px 22px;
  border-top: 1px solid var(--line);
  background: rgba(6, 18, 36, 0.8);
}
.car-title { min-width: 0; }
.car-title b {
  display: block;
  font-size: 17px;
  color: #fff;
  letter-spacing: 1.5px;
  animation: riseIn 400ms var(--ease-out) both;
}
.car-title span {
  font-size: 13px;
  color: var(--muted);
  animation: riseIn 400ms var(--ease-out) 60ms both;
}
.car-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.car-dot {
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 1px;
  color: var(--dim);
  border: 1px solid var(--line);
  border-radius: 2px;
  background: transparent;
  padding: 4px 10px;
  cursor: pointer;
  transition: color 150ms ease, border-color 150ms ease, background 150ms ease;
}
.car-dot:hover { color: var(--ink); border-color: var(--line-strong); }
.car-dot.active {
  color: #04101f;
  background: linear-gradient(90deg, var(--cyan), #7ae7ff);
  border-color: transparent;
  box-shadow: 0 0 12px rgba(69, 216, 255, 0.5);
}
/* 自动播放进度条 */
.car-progress {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: rgba(72, 160, 255, 0.15);
  z-index: 8;
}
.car-progress i {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  box-shadow: 0 0 8px rgba(69, 216, 255, 0.8);
}
.carousel.paused .car-progress i { animation-play-state: paused; }

/* 触屏隐藏箭头悬浮放大 */
@media (hover: none) {
  .car-btn { opacity: 0.72; }
}

@media (prefers-reduced-motion: reduce) {
  .page-sweep, .hero-bg img, .hero h1 .hl { animation: none; }
  .hero h1 .hl { background: linear-gradient(100deg, #63e0ff, #2e8bff); -webkit-background-clip: text; background-clip: text; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .car-slide.active { animation: none; }
  .car-slide.active::after { display: none; }
}

/* 交错入场延迟由 .reveal[data-delay] 的 transition-delay 控制（见文件前部） */

/* ============================================================
   三业务主线卡片（首页）
   ============================================================ */
@media (min-width: 1100px) {
  .lane-cards.cols-3 { grid-template-columns: repeat(3, 1fr); }
  .lane-cards.cols-3 .lane-card { min-height: 400px; }
}

/* ============================================================
   系统案例卡（BIM 页典型案例）
   ============================================================ */
.sys-cases { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 1000px) { .sys-cases { grid-template-columns: 1fr; } }
.sys-case {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--panel);
  display: flex;
  flex-direction: column;
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}
.sys-case:hover { transform: translateY(-5px); border-color: var(--line-strong); box-shadow: var(--glow); }
.sys-case .sys-shots {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}
.sys-case .sys-shots img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  transition: opacity 400ms ease, transform 600ms var(--ease-out);
}
.sys-case .sys-shots img.alt { opacity: 0; }
.sys-case:hover .sys-shots img.base { opacity: 0; }
.sys-case:hover .sys-shots img.alt { opacity: 1; transform: scale(1.03); }
.sys-case .sys-body { padding: 22px 24px 24px; }
.sys-case .sys-no {
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 3px;
  color: var(--cyan);
  margin-bottom: 8px;
}
.sys-case h3 { font-size: 19px; color: #fff; letter-spacing: 1px; margin-bottom: 10px; }
.sys-case p { font-size: 13.5px; color: var(--muted); margin-bottom: 14px; }
.sys-case .sys-tip {
  font-size: 12px;
  color: var(--dim);
  letter-spacing: 1px;
}
.sys-case .sys-tip i { font-style: normal; color: var(--cyan); }

/* 模型能力卡（数字孪生页） */
.model-card { padding: 14px; }
.model-card .shot {
  aspect-ratio: 16 / 8.4;
  overflow: hidden;
  border-radius: 4px;
  border: 1px solid var(--line);
  margin-bottom: 14px;
}
.model-card .shot img { width: 100%; height: 100%; object-fit: cover; object-position: top center; transition: transform 500ms var(--ease-out); }
.model-card:hover .shot img { transform: scale(1.05); }
.model-card h3 { font-size: 16.5px; color: #fff; letter-spacing: 1px; margin-bottom: 6px; padding: 0 6px; }
.model-card p { font-size: 13px; color: var(--muted); padding: 0 6px; }

/* 案例演示三块等高 */
.case-grid .shot-frame img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center top;
}
.case-grid > .reveal { display: flex; flex-direction: column; }
.case-grid .shot-frame { flex: 1; display: flex; }
.case-grid .shot-frame img { width: 100%; height: 100%; }

/* ============================================================
   Swiper 截图巡览（深色科技主题）
   ============================================================ */
.swiper-gallery { padding: 8px 0 52px; }
.swiper-gallery .swiper-slide {
  width: min(780px, 82%);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--panel);
  transition: border-color 250ms ease, box-shadow 250ms ease, opacity 250ms ease;
  opacity: 0.45;
}
.swiper-gallery .swiper-slide-active {
  opacity: 1;
  border-color: var(--line-strong);
  box-shadow: var(--glow);
}
.swiper-gallery .swiper-slide img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center top;
  display: block;
}
.swiper-gallery .g-cap {
  padding: 13px 18px;
  font-size: 13.5px;
  color: var(--muted);
  letter-spacing: 1px;
  background: rgba(6, 18, 36, 0.85);
  border-top: 1px solid var(--line);
}
.swiper-gallery .g-cap b { color: var(--ink); font-weight: 600; margin-right: 8px; }
.swiper-gallery .swiper-pagination { bottom: 6px; }
.swiper-gallery .swiper-pagination-bullet {
  width: 22px; height: 3px; border-radius: 2px;
  background: var(--dim); opacity: 0.5;
  transition: background 200ms ease, opacity 200ms ease, width 200ms ease;
}
.swiper-gallery .swiper-pagination-bullet-active {
  background: var(--cyan); opacity: 1; width: 34px;
  box-shadow: 0 0 8px rgba(69, 216, 255, 0.7);
}
.swiper-gallery .swiper-button-next,
.swiper-gallery .swiper-button-prev {
  color: var(--cyan);
  width: 44px; height: 44px;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  background: rgba(4, 16, 31, 0.6);
  backdrop-filter: blur(4px);
  transition: background 180ms ease, box-shadow 180ms ease;
}
.swiper-gallery .swiper-button-next:hover,
.swiper-gallery .swiper-button-prev:hover { background: rgba(69, 216, 255, 0.16); box-shadow: var(--glow); }
.swiper-gallery .swiper-button-next:after,
.swiper-gallery .swiper-button-prev:after { font-size: 18px; font-weight: 700; }
@media (prefers-reduced-motion: reduce) {
  .swiper-gallery .swiper-slide { transition: none; }
}

/* ============================================================
   核心产品介绍页
   ============================================================ */
body[data-product-theme] {
  --product-accent: #45d8ff;
  --product-accent-rgb: 69 216 255;
  --product-accent-2: #2e8bff;
}
body[data-product-theme="groundwater"] { --product-accent: #4ce0c7; --product-accent-rgb: 76 224 199; --product-accent-2: #2f91ff; }
body[data-product-theme="health"] { --product-accent: #ff7bb9; --product-accent-rgb: 255 123 185; --product-accent-2: #8a7dff; }
body[data-product-theme="weather"] { --product-accent: #9387ff; --product-accent-rgb: 147 135 255; --product-accent-2: #43d8ff; }
body[data-product-theme="flood"] { --product-accent: #48dcff; --product-accent-rgb: 72 220 255; --product-accent-2: #347eff; }
body[data-product-theme="agriculture"] { --product-accent: #7fe46d; --product-accent-rgb: 127 228 109; --product-accent-2: #38c8b4; }
body[data-product-theme="river"] { --product-accent: #4ccde7; --product-accent-rgb: 76 205 231; --product-accent-2: #347dff; }
body[data-product-theme="park"] { --product-accent: #a1df5a; --product-accent-rgb: 161 223 90; --product-accent-2: #37c7aa; }
body[data-product-theme="education"] { --product-accent: #7ea6ff; --product-accent-rgb: 126 166 255; --product-accent-2: #8e78ff; }
body[data-product-theme="logistics"] { --product-accent: #ffb25e; --product-accent-rgb: 255 178 94; --product-accent-2: #4da4ff; }
body[data-product-theme="iot"] { --product-accent: #3ee6c4; --product-accent-rgb: 62 230 196; --product-accent-2: #2f9dff; }
body[data-product-theme="ops"] { --product-accent: #b78bff; --product-accent-rgb: 183 139 255; --product-accent-2: #5f8dff; }

.product-page[hidden],
.detail-placeholder-section[hidden] { display: none; }

body[data-product-theme] .detail-hero {
  min-height: min(760px, 82vh);
  padding-bottom: 78px;
}
body[data-product-theme] .detail-hero .wrap { width: min(1240px, calc(100% - 48px)); }
body[data-product-theme] .detail-hero .hero-bg img {
  object-position: center top;
  filter: saturate(.82) contrast(1.05) brightness(.6) blur(2px);
  transform: scale(1.02);
}
body[data-product-theme] .detail-hero .hero-bg::after {
  background:
    linear-gradient(90deg, rgba(3, 13, 27, .98) 0%, rgba(3, 13, 27, .92) 42%, rgba(3, 13, 27, .62) 74%, rgba(3, 13, 27, .5) 100%),
    linear-gradient(180deg, rgba(4, 16, 31, .55), rgba(4, 16, 31, .2) 32%, rgba(4, 16, 31, .35) 66%, var(--bg-0));
}
body[data-product-theme] .detail-hero::after {
  content: "";
  position: absolute;
  inset: var(--nav-h) 0 auto;
  height: 2px;
  z-index: 1;
  background: linear-gradient(90deg, transparent, var(--product-accent), transparent);
  opacity: .65;
  box-shadow: 0 0 20px rgb(var(--product-accent-rgb) / .55);
}
body[data-product-theme] .detail-hero h1 {
  max-width: 900px;
  font-size: clamp(34px, 4.3vw, 58px);
  letter-spacing: 2px;
}
body[data-product-theme] .detail-hero .hero-sub { max-width: 760px; margin-bottom: 26px; color: #a9c3da; }
body[data-product-theme] .hero-tag {
  color: var(--product-accent);
  border-color: rgb(var(--product-accent-rgb) / .54);
  background: rgb(var(--product-accent-rgb) / .075);
}
body[data-product-theme] .hero-tag i { background: var(--product-accent); box-shadow: 0 0 11px var(--product-accent); }

.product-hero-points { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 26px; }
.product-hero-points[hidden] { display: none; }
.product-hero-points span {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 5px 13px;
  border: 1px solid rgb(var(--product-accent-rgb) / .25);
  border-radius: 2px;
  background: rgba(4, 16, 31, .52);
  color: #d9ecfa;
  font-size: 12.5px;
  letter-spacing: 1px;
  backdrop-filter: blur(6px);
}
.product-hero-points span::before {
  content: "";
  width: 4px;
  height: 4px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--product-accent);
  box-shadow: 0 0 8px var(--product-accent);
}

.product-page .section-head { max-width: 760px; margin-bottom: 42px; }
.product-page .section-head.centered { margin-inline: auto; text-align: center; }
.product-page .section-head .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  color: var(--product-accent);
  font: 600 13px/1.4 var(--font-num);
  letter-spacing: 4px;
  text-transform: uppercase;
}
.product-page .section-head .eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  background: linear-gradient(90deg, var(--product-accent), transparent);
}
.product-page .section-head.centered .eyebrow::after {
  content: "";
  width: 26px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--product-accent));
}
.product-page .section-head h2 {
  margin-bottom: 14px;
  color: #fff;
  font-size: clamp(27px, 3.3vw, 40px);
  line-height: 1.35;
  letter-spacing: 1px;
}
.product-page .section-head p { color: var(--muted); font-size: 15px; line-height: 1.95; }

.product-overview { padding-top: 104px; }
.product-overview-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 76px; align-items: center; }
.product-overview .section-head { margin-bottom: 0; }
.product-signals {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border: 1px solid rgba(72, 160, 255, .18);
  border-radius: 8px;
  overflow: hidden;
  background: rgba(7, 26, 51, .46);
  box-shadow: 0 26px 60px rgba(0, 6, 18, .32);
}
.product-signal {
  min-height: 150px;
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 13px;
  padding: 24px 22px;
  border-right: 1px solid rgba(72, 160, 255, .14);
  border-bottom: 1px solid rgba(72, 160, 255, .14);
  background: linear-gradient(145deg, rgb(var(--product-accent-rgb) / .055), transparent 62%);
}
.product-signal:nth-child(2n) { border-right: 0; }
.product-signal:nth-last-child(-n+2) { border-bottom: 0; }
.product-signal > span { color: var(--product-accent); font: 600 15px/1.3 var(--font-num); letter-spacing: 2px; }
.product-signal h3 { margin-bottom: 6px; color: #fff; font-size: 17px; letter-spacing: 1px; }
.product-signal p { color: var(--muted); font-size: 12.5px; line-height: 1.75; }

.product-features {
  background:
    radial-gradient(800px 420px at 84% 12%, rgb(var(--product-accent-rgb) / .08), transparent 68%),
    linear-gradient(180deg, rgba(5, 21, 42, .72), rgba(4, 16, 31, .2));
}
.product-feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.product-feature {
  position: relative;
  min-height: 0;
  padding: 26px 26px 24px;
  overflow: hidden;
  background: linear-gradient(150deg, rgb(var(--product-accent-rgb) / .075), rgba(10, 34, 65, .38) 58%);
}
.product-feature p { margin-top: 2px; }
.feature-num {
  position: absolute;
  top: 16px;
  right: 20px;
  font: 700 36px/1 var(--font-num);
  letter-spacing: 2px;
  color: rgb(var(--product-accent-rgb) / .16);
  transition: color 250ms ease, transform 250ms ease;
  pointer-events: none;
}
.product-feature:hover .feature-num { color: rgb(var(--product-accent-rgb) / .42); transform: translateY(-3px); }
.product-feature::after {
  opacity: 1;
  width: 90px;
  height: 90px;
  right: -46px;
  bottom: -46px;
  border: 1px solid rgb(var(--product-accent-rgb) / .18);
  border-radius: 50%;
}
.product-feature:hover { border-color: rgb(var(--product-accent-rgb) / .52); box-shadow: 0 18px 50px rgb(var(--product-accent-rgb) / .12); }
.product-feature-code {
  display: inline-flex;
  align-items: center;
  min-height: 29px;
  margin-bottom: 26px;
  padding: 4px 9px;
  border: 1px solid rgb(var(--product-accent-rgb) / .42);
  border-radius: 3px;
  color: var(--product-accent);
  font: 600 12px/1 var(--font-num);
  letter-spacing: 1.5px;
}
.product-feature h3 { margin-bottom: 10px; color: #fff; font-size: 19px; letter-spacing: 1px; }
.product-feature p { color: var(--muted); font-size: 13.5px; line-height: 1.9; }

.product-architecture { overflow: hidden; }
.product-architecture::before {
  content: "";
  position: absolute;
  width: 680px;
  height: 680px;
  top: 120px;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgb(var(--product-accent-rgb) / .08), transparent 68%);
  pointer-events: none;
}
.architecture-stack {
  position: relative;
  width: min(1040px, 100%);
  margin: 0 auto;
  display: grid;
  gap: 13px;
}
.architecture-layer {
  position: relative;
  min-height: 92px;
  display: grid;
  grid-template-columns: 60px 160px 1fr;
  align-items: center;
  gap: 18px;
  padding: 15px 20px;
  border: 1px solid rgba(72, 160, 255, .2);
  border-left: 2px solid var(--product-accent);
  border-radius: 6px;
  background: linear-gradient(90deg, rgb(var(--product-accent-rgb) / .09), rgba(8, 29, 55, .7) 24%, rgba(6, 22, 43, .66));
  box-shadow: inset 0 1px rgba(255, 255, 255, .025);
}
.architecture-layer:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 49px;
  bottom: -14px;
  width: 1px;
  height: 13px;
  background: var(--product-accent);
  box-shadow: 0 0 8px rgb(var(--product-accent-rgb) / .7);
}
.architecture-index {
  color: var(--product-accent);
  font: 600 17px/1 var(--font-num);
  letter-spacing: 3px;
}
.architecture-layer h3 { color: #fff; font-size: 16px; letter-spacing: 1px; }
.architecture-nodes { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; }
.architecture-nodes span {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 7px 8px;
  border: 1px solid rgb(var(--product-accent-rgb) / .18);
  border-radius: 3px;
  background: rgba(4, 16, 31, .5);
  color: #abc5dc;
  font-size: 12.5px;
  text-align: center;
}

.product-gallery-section {
  background:
    linear-gradient(rgba(72, 160, 255, .025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(72, 160, 255, .025) 1px, transparent 1px),
    rgba(4, 15, 30, .48);
  background-size: 48px 48px;
}
.product-gallery { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 20px; }
.product-shot {
  grid-column: span 6;
  overflow: hidden;
  border: 1px solid rgba(72, 160, 255, .2);
  border-radius: 8px;
  background: rgba(8, 27, 52, .68);
  transition: transform 220ms ease, border-color 220ms ease, box-shadow 220ms ease;
}
.product-shot:first-child,
.product-shot:last-child:nth-child(even) { grid-column: span 12; }
.product-shot:hover { transform: translateY(-4px); border-color: rgb(var(--product-accent-rgb) / .46); box-shadow: 0 24px 60px rgba(0, 6, 18, .42); }
.product-shot > .shot-media {
  position: relative;
  display: flex;
  aspect-ratio: 16 / 8.4;
  overflow: hidden;
  background: #020912;
}
.product-shot img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  transition: transform 520ms var(--ease-out);
}
.product-shot:hover img { transform: scale(1.015); }
.product-shot figcaption { display: grid; grid-template-columns: 44px 1fr; gap: 14px; padding: 20px 22px 22px; border-top: 1px solid rgba(72, 160, 255, .14); }
.product-shot figcaption > span { color: var(--product-accent); font: 600 14px/1.5 var(--font-num); letter-spacing: 2px; }
.product-shot h3 { margin-bottom: 5px; color: #fff; font-size: 16px; letter-spacing: .5px; }
.product-shot p { color: var(--muted); font-size: 12.5px; line-height: 1.75; }

.product-outcomes-section { padding-bottom: 104px; }
.product-outcomes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.product-outcome { position: relative; min-height: 190px; padding: 26px 24px 24px; border-top: 1px solid rgb(var(--product-accent-rgb) / .45); background: linear-gradient(180deg, rgb(var(--product-accent-rgb) / .055), transparent); }
.product-outcome i { display: block; width: 34px; height: 3px; margin-bottom: 24px; background: linear-gradient(90deg, var(--product-accent), transparent); box-shadow: 0 0 10px rgb(var(--product-accent-rgb) / .35); }
.product-outcome h3 { margin-bottom: 9px; color: #fff; font-size: 18px; letter-spacing: 1px; }
.product-outcome p { color: var(--muted); font-size: 13.5px; line-height: 1.85; }
.product-detail-cta {
  margin-top: 66px;
  padding: 34px 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  overflow: hidden;
  background: linear-gradient(100deg, rgb(var(--product-accent-rgb) / .095), rgba(10, 34, 65, .42));
}
.product-detail-cta > div { position: relative; }
.product-detail-cta span:first-child { color: var(--product-accent); font: 600 12px/1.4 var(--font-num); letter-spacing: 3px; text-transform: uppercase; }
.product-detail-cta h2 { margin-top: 7px; color: #fff; font-size: clamp(21px, 2.4vw, 29px); letter-spacing: 1px; }
body[data-product-theme] .product-detail-cta .btn-primary { background: linear-gradient(90deg, var(--product-accent-2), var(--product-accent)); color: #03101e; }

@media (max-width: 980px) {
  .product-overview-grid { grid-template-columns: 1fr; gap: 44px; }
  .product-feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .architecture-layer { grid-template-columns: 50px 130px 1fr; gap: 12px; }
  .architecture-nodes { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .product-gallery { gap: 16px; }
}

@media (max-width: 700px) {
  body[data-product-theme] .detail-hero { min-height: 700px; padding-top: calc(var(--nav-h) + 74px); padding-bottom: 66px; }
  body[data-product-theme] .detail-hero .wrap { width: min(100% - 34px, 1240px); }
  body[data-product-theme] .detail-hero h1 { font-size: clamp(29px, 8.2vw, 38px); line-height: 1.32; }
  body[data-product-theme] .detail-hero .hero-sub { font-size: 14.5px; line-height: 1.9; }
  .product-hero-points { gap: 7px; }
  .product-hero-points span { min-height: 29px; padding: 4px 9px; font-size: 11.5px; }
  .product-overview { padding-top: 76px; }
  .product-page .section-head { margin-bottom: 32px; }
  .product-signals { grid-template-columns: 1fr; }
  .product-signal { min-height: 0; border-right: 0; }
  .product-signal:nth-last-child(-n+2) { border-bottom: 1px solid rgba(72, 160, 255, .14); }
  .product-signal:last-child { border-bottom: 0; }
  .product-feature-grid { grid-template-columns: 1fr; }
  .product-feature { min-height: 0; padding: 25px 22px; }
  .product-feature-code { margin-bottom: 19px; }
  .architecture-layer { grid-template-columns: 40px 1fr; padding: 16px; }
  .architecture-index { grid-row: 1 / 3; align-self: start; padding-top: 5px; }
  .architecture-layer h3 { font-size: 15px; }
  .architecture-nodes { grid-column: 2; grid-template-columns: 1fr 1fr; }
  .architecture-layer:not(:last-child)::after { left: 35px; }
  .product-shot,
  .product-shot:first-child,
  .product-shot:last-child:nth-child(even) { grid-column: span 12; }
  .product-shot > .shot-media { aspect-ratio: 16 / 9; }
  .product-shot figcaption { grid-template-columns: 34px 1fr; padding: 17px; }
  .product-outcomes { grid-template-columns: 1fr; }
  .product-outcome { min-height: 0; padding-inline: 18px; }
  .product-detail-cta { align-items: flex-start; flex-direction: column; margin-top: 48px; padding: 27px 23px; }
}

@media (max-width: 430px) {
  .architecture-nodes { grid-template-columns: 1fr; }
  .architecture-layer { grid-template-columns: 35px 1fr; }
  .architecture-layer:not(:last-child)::after { left: 31px; }
}

/* 临时隐藏"数智底座"导航项（含下拉），恢复时删除本段即可 */
.nav-item.has-mega:has(> .nav-menu-trigger[data-section="foundation"]) { display: none; }

/* ============================================================
   产品页布局变体：让每个产品有自己的版式特点
   ============================================================ */
/* 居中式：hero 与概览居中、信号四列 */
.layout-centered body, .layout-centered .detail-hero .wrap { text-align: center; }
.layout-centered .detail-hero h1, .layout-centered .detail-hero .hero-sub { margin-left: auto; margin-right: auto; }
.layout-centered .product-hero-points { justify-content: center; }
.layout-centered .product-overview-grid { grid-template-columns: 1fr; gap: 44px; text-align: center; }
.layout-centered .product-overview .section-head { display: flex; flex-direction: column; align-items: center; }
.layout-centered .product-signals { grid-template-columns: repeat(4, minmax(0,1fr)); }
.layout-centered .product-signal { border-right: 0; border-bottom: 0; border-left: 1px solid rgba(72,160,255,.14); }
.layout-centered .product-signal:first-child { border-left: 0; }
.layout-centered .product-feature-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
.layout-centered .product-feature { text-align: center; padding-top: 36px; }
.layout-centered .product-feature-code { margin: 0 auto 18px; border-radius: 999px; padding: 6px 15px; }
.layout-centered .feature-num { top: auto; bottom: 12px; right: 16px; font-size: 26px; }

/* 紧凑式：序号左置的规格行 + 画廊等宽瓦片 */
.layout-compact .product-feature-grid { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
.layout-compact .product-feature {
  display: grid;
  grid-template-columns: 64px 1fr;
  column-gap: 18px;
  align-items: start;
  min-height: 0;
  padding: 22px 22px 20px;
}
.layout-compact .feature-num { position: static; grid-column: 1; grid-row: 1 / span 3; font-size: 34px; color: rgb(var(--product-accent-rgb) / .38); }
.layout-compact .product-feature-code { grid-column: 2; margin-bottom: 8px; }
.layout-compact .product-feature h3 { grid-column: 2; }
.layout-compact .product-feature p { grid-column: 2; }
.layout-compact .product-gallery .product-shot,
.layout-compact .product-shot:first-child,
.layout-compact .product-shot:last-child:nth-child(even) { grid-column: span 6; }

/* 横展式：概览通栏、信号四列、架构横向五列 */
.layout-wide .product-overview-grid { grid-template-columns: 1fr; gap: 40px; }
.layout-wide .product-signals { grid-template-columns: repeat(4, minmax(0,1fr)); }
.layout-wide .product-signal { border-right: 0; border-bottom: 0; border-left: 1px solid rgba(72,160,255,.14); }
.layout-wide .product-signal:first-child { border-left: 0; }
.layout-wide .product-feature-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
.layout-wide .product-feature:first-child {
  grid-column: 1 / -1;
  min-height: 170px;
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 28px;
  align-items: center;
  background: linear-gradient(120deg, rgb(var(--product-accent-rgb) / .16), rgba(10, 34, 65, .42) 60%);
  border-color: rgb(var(--product-accent-rgb) / .35);
}
.layout-wide .product-feature:first-child .feature-num { position: static; grid-column: 1; grid-row: 1 / span 3; font-size: 64px; color: rgb(var(--product-accent-rgb) / .32); }
.layout-wide .product-feature:first-child .product-feature-code { grid-column: 2; margin-bottom: 10px; }
.layout-wide .product-feature:first-child h3 { grid-column: 2; font-size: 22px; }
.layout-wide .product-feature:first-child p { grid-column: 2; }
.layout-wide .architecture-stack {
  width: min(1180px, 100%);
  margin: 0 auto;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 24px;
}
.layout-wide .architecture-layer { position: relative; grid-template-columns: 1fr; gap: 10px; min-height: 0; text-align: center; }
.layout-wide .architecture-layer:not(:last-child)::after {
  content: "▸";
  left: auto; right: -19px; top: 50%; bottom: auto;
  width: auto; height: auto;
  background: none; box-shadow: none;
  color: var(--product-accent);
  font-size: 20px;
  transform: translateY(-50%);
  text-shadow: 0 0 10px rgb(var(--product-accent-rgb) / .6);
}
.layout-wide .architecture-nodes { grid-template-columns: 1fr; }

@media (max-width: 900px) {
  .layout-centered .product-signals, .layout-wide .product-signals { grid-template-columns: 1fr; }
  .layout-centered .product-signal, .layout-wide .product-signal { border-left: 0; border-bottom: 1px solid rgba(72,160,255,.14); }
  .layout-centered .product-feature-grid, .layout-compact .product-feature-grid, .layout-wide .product-feature-grid { grid-template-columns: 1fr; }
  .layout-compact .product-gallery .product-shot, .layout-compact .product-shot { grid-column: span 12; }
  .layout-wide .architecture-stack { grid-template-columns: 1fr; }
  .layout-wide .architecture-layer:not(:last-child)::after { display: none; }
}