/* ============================================================
   VEIGLO 展厅 — 全站样式（纯 CSS，无依赖）
   字体：系统字体栈（中文优先）+ ui-monospace 等宽
   ============================================================ */

:root {
  --bg: #030609;
  --bg-soft: #070d13;
  --panel: rgba(10, 19, 27, .76);
  --ink: #f4f8fb;
  --muted: #8c9aa6;
  --line: rgba(158, 200, 226, .17);
  --line-strong: rgba(116, 222, 244, .38);
  --cyan: #72e9f5;
  --blue: #3a8cff;
  --amber: #e5a75a;
  --nav-height: 74px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  --font-mono: ui-monospace, "Cascadia Code", "Consolas", "Menlo", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}
button, input, video { font: inherit; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
::selection { background: rgba(114, 233, 245, .26); color: #fff; }

.site {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
  background: var(--bg);
  isolation: isolate;
}
.site::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .21;
  background-image:
    linear-gradient(rgba(112, 192, 226, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(112, 192, 226, .055) 1px, transparent 1px);
  background-size: 80px 80px;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 16%, #000 86%, transparent);
  mask-image: linear-gradient(to bottom, transparent, #000 16%, #000 86%, transparent);
}

/* ---------- 导航 ---------- */
.nav {
  position: relative;
  z-index: 30;
  height: var(--nav-height);
  padding: 0 clamp(24px, 4.8vw, 84px);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  border-bottom: 1px solid var(--line);
  background: rgba(3, 7, 11, .78);
  backdrop-filter: blur(22px) saturate(140%);
  -webkit-backdrop-filter: blur(22px) saturate(140%);
}
.brand {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  gap: 10px;
  font-size: 19px;
  letter-spacing: -.7px;
}
.brand b { font-weight: 720; }
.brand sup { margin-left: -7px; color: var(--amber); font-size: 8px; transform: translateY(-7px); }
.brand-mark {
  width: 22px;
  height: 22px;
  position: relative;
  display: block;
  border: 1px solid rgba(114, 233, 245, .45);
  transform: rotate(45deg);
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 5px;
  background: var(--cyan);
  box-shadow: 0 0 20px rgba(114, 233, 245, .8);
}
.brand-mark i {
  position: absolute;
  width: 1px;
  height: 31px;
  left: 10px;
  top: -5px;
  background: rgba(114, 233, 245, .2);
}
.brand-mark i:nth-child(2) { transform: rotate(60deg); }
.brand-mark i:nth-child(3) { transform: rotate(-60deg); }
.nav nav { align-self: stretch; display: flex; align-items: stretch; }
.nav nav a {
  min-width: 116px;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  position: relative;
  color: #8d9ba7;
  font-size: 14px;
  font-weight: 520;
  letter-spacing: .15px;
  white-space: nowrap;
  transition: color .3s ease;
}
.nav nav a::after {
  content: "";
  position: absolute;
  height: 2px;
  left: 50%;
  right: 50%;
  bottom: -1px;
  background: linear-gradient(90deg, var(--cyan), var(--blue));
  box-shadow: 0 0 16px var(--cyan);
  transition: left .3s ease, right .3s ease;
}
.nav nav a:hover, .nav nav a.active { color: #fff; }
.nav nav a:hover::after, .nav nav a.active::after { left: 17px; right: 17px; }
.contact {
  justify-self: end;
  padding: 11px 15px;
  color: #dcecf3;
  border: 1px solid var(--line-strong);
  background: rgba(25, 67, 85, .14);
  font-size: 11px;
  letter-spacing: .25px;
  transition: background .3s, color .3s, border-color .3s;
}
.contact span { margin-left: 8px; color: var(--cyan); }
.contact:hover { color: #fff; border-color: var(--cyan); background: rgba(46, 140, 170, .2); }

.label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 22px;
  color: #82edf5;
  font: 700 11px/1.3 var(--font-mono);
  letter-spacing: 1.8px;
}
.label::before {
  content: "";
  width: 18px;
  height: 1px;
  background: linear-gradient(90deg, var(--amber), var(--cyan));
  box-shadow: 0 0 8px var(--cyan);
}

h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { text-wrap: balance; }
h1 em, h2 em {
  color: transparent;
  font-style: normal;
  background: linear-gradient(100deg, #fff 0, #88eff7 45%, #55a3ff 100%);
  background-clip: text;
  -webkit-background-clip: text;
}

/* ---------- 首页（单屏版） ---------- */
.lobby { background: #020508; }
.home-single-screen { min-height: 100vh; }
.home-single-screen .lobby-hero {
  min-height: calc(100vh - var(--nav-height));
  box-sizing: border-box;
}

.lobby-hero {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: clamp(30px, 5vw, 80px);
  padding: clamp(40px, 6vh, 80px) clamp(28px, 6.3vw, 112px) clamp(40px, 6vh, 80px);
  border-bottom: 1px solid var(--line);
}
.lobby-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    linear-gradient(90deg, rgba(2, 5, 8, .98) 0%, rgba(2, 5, 8, .86) 27%, rgba(2, 5, 8, .22) 63%, rgba(2, 5, 8, .08) 100%),
    linear-gradient(0deg, #03070b 0%, transparent 32%),
    radial-gradient(circle at 73% 52%, transparent 0, rgba(3, 8, 12, .16) 50%, rgba(3, 8, 12, .75) 100%);
}
.hero-generated {
  position: absolute;
  z-index: -1;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.025);
  animation: hero-breathe 12s ease-in-out infinite alternate;
}
.hero-scanline {
  position: absolute;
  z-index: 1;
  top: 0;
  bottom: 0;
  left: 63%;
  width: 1px;
  background: linear-gradient(transparent, rgba(114, 233, 245, .52), transparent);
  box-shadow: 0 0 24px rgba(114, 233, 245, .4);
  opacity: .34;
}
.lobby-copy {
  position: relative;
  z-index: 3;
  flex: 1 1 480px;
  max-width: 680px;
  align-self: center;
  animation: rise-in .9s .08s both;
}
.lobby-copy h1 {
  margin: 0 0 27px;
  font-size: clamp(52px, 5.45vw, 88px);
  font-weight: 620;
  line-height: 1;
  letter-spacing: clamp(-5px, -.055em, -2px);
}
.lobby-copy h1 em { display: inline-block; padding-bottom: 10px; }
.hero-lead {
  max-width: 610px;
  margin: 0;
  color: #b6c5ce;
  font-size: clamp(16px, 1.08vw, 18px);
  line-height: 1.78;
}
.hero-stack {
  position: absolute;
  z-index: 3;
  right: clamp(28px, 6.3vw, 112px);
  bottom: clamp(90px, 12vh, 130px);
  width: min(100%, 380px);
  border: 1px solid rgba(150, 208, 234, .22);
  background: linear-gradient(135deg, rgba(11, 25, 35, .78), rgba(5, 11, 17, .38));
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: inset 0 1px rgba(255, 255, 255, .045), 0 30px 80px rgba(0, 0, 0, .25);
  animation: rise-in 1s .32s both;
}
.hero-stack > div {
  min-height: clamp(64px, 6.4vh, 72px);
  padding: 0 20px;
  display: grid;
  grid-template-columns: 36px 1fr auto;
  align-items: center;
  border-bottom: 1px solid var(--line);
}
.hero-stack > div small { color: var(--amber); font: 10px var(--font-mono); }
.hero-stack > div b { font-size: 15px; font-weight: 520; color: #e8f1f5; }
.hero-stack > div em { color: #9fc4d4; font: normal 10px var(--font-mono); letter-spacing: 1px; }
.hero-stack .stack-head { min-height: 50px; grid-template-columns: 1fr auto; align-items: center; }
.stack-head span { color: #9fc4d4; font-size: 12px; font-weight: 500; letter-spacing: .5px; }
.stack-head i { display: inline-block; width: 8px; height: 8px; border: 1px solid var(--amber); transform: rotate(45deg); }
.hero-stack > p { margin: 0; padding: 17px 20px; color: #b8ccd6; font-size: 12px; }
.hero-stack > p i { display: inline-block; width: 6px; height: 6px; margin-right: 6px; border: 1px solid var(--amber); transform: rotate(45deg); }
.hero-proof {
  position: absolute;
  z-index: 3;
  left: clamp(28px, 6.3vw, 112px);
  bottom: clamp(28px, 4vh, 48px);
  display: flex;
  gap: 0;
  margin-top: 0;
  animation: rise-in .9s .5s both;
}
.hero-proof p { width: clamp(140px, 12vw, 205px); margin: 0; padding-left: 16px; border-left: 1px solid var(--line-strong); }
.hero-proof small { display: block; margin-bottom: 7px; color: #9fc4d4; font: 9px var(--font-mono); letter-spacing: 1px; }
.hero-proof b { color: #dce7ec; font-size: 13px; font-weight: 520; }

/* ---------- 硬件地图（单屏版） ---------- */
.hardware-index-page { height: 100svh; min-height: 720px; }
.hardware-index {
  height: calc(100svh - var(--nav-height));
  min-height: 646px;
  padding: 26px clamp(28px, 4.8vw, 84px) 18px;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 15px;
  overflow: hidden;
}
.hardware-index-intro { display: grid; grid-template-columns: minmax(440px, 1.2fr); align-items: end; gap: clamp(28px, 4vw, 72px); }
.hardware-index-intro h1 {
  margin: 0;
  font-size: clamp(33px, 2.85vw, 47px);
  font-weight: 570;
  line-height: 1.1;
  letter-spacing: -.05em;
}
.hardware-index-grid {
  min-height: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-rows: repeat(2, minmax(0, 1fr));
  gap: 12px;
  perspective: 1400px;
}
.hardware-tile {
  position: relative;
  min-width: 0;
  min-height: 0;
  padding: 0;
  overflow: hidden;
  display: block;
  color: inherit;
  text-align: left;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at 55% 44%, rgba(45, 139, 174, .22), transparent 36%),
    linear-gradient(145deg, rgba(14, 28, 38, .92), rgba(4, 9, 13, .98));
  cursor: pointer;
  transform-style: preserve-3d;
  transform: rotateX(0) rotateY(0);
  transition: transform .35s ease, border-color .35s ease, box-shadow .35s ease;
}
.hardware-tile::before {
  content: "";
  position: absolute;
  z-index: 1;
  inset: -70% -35%;
  background: linear-gradient(105deg, transparent 42%, rgba(176, 236, 249, .09) 50%, transparent 58%);
  transform: translateX(-38%) rotate(8deg);
  transition: transform .7s ease;
  pointer-events: none;
}
.hardware-tile::after {
  content: "";
  position: absolute;
  z-index: 2;
  left: 0; right: 0; bottom: 0;
  height: 48%;
  background: linear-gradient(transparent, rgba(3, 7, 11, .92));
  pointer-events: none;
}
.hardware-tile:hover {
  z-index: 3;
  border-color: rgba(114, 233, 245, .56);
  transform: translateY(-5px) rotateX(2deg) rotateY(-2deg);
  box-shadow: 18px 26px 55px rgba(0, 0, 0, .34), inset 0 0 35px rgba(114, 233, 245, .04);
}
.hardware-tile:hover::before { transform: translateX(38%) rotate(8deg); }
.tile-head {
  position: absolute;
  z-index: 4;
  top: 20px;
  left: 22px;
  right: 22px;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 12px;
}
.tile-head span { color: var(--amber); font: 700 17px var(--font-mono); }
.tile-head small { color: #c2d2dc; font: 600 14px var(--font-mono); letter-spacing: .4px; }
.tile-visual {
  position: absolute;
  z-index: 2;
  inset: 64px 8px 96px;
  display: grid;
  place-items: center;
  transform: translateZ(35px);
}
.tile-visual::before {
  content: "";
  position: absolute;
  width: 44%;
  aspect-ratio: 1;
  border: 1px solid rgba(114, 233, 245, .12);
  border-radius: 50%;
  box-shadow: 0 0 50px rgba(48, 148, 184, .14);
}
.tile-visual img {
  position: relative;
  z-index: 1;
  max-width: 68%;
  max-height: 88%;
  object-fit: contain;
  filter: drop-shadow(0 22px 17px rgba(0, 0, 0, .62));
  transition: transform .45s ease;
}
.hardware-tile:hover .tile-visual img { transform: translateY(-5px) scale(1.03); }
.tile-2 .tile-visual img, .tile-3 .tile-visual img { max-width: 59%; }
.tile-2 .tile-visual img { transform: translateY(-25%); }
.tile-2:hover .tile-visual img { transform: translateY(calc(-25% - 5px)) scale(1.03); }
.tile-4 .tile-visual img { max-width: 56%; }
.tile-6 .tile-visual img { max-width: 78%; }
.tile-5 .tile-visual img { max-width: 50%; transform: translateY(-30%); }
.tile-5:hover .tile-visual img { transform: translateY(calc(-30% - 5px)) scale(1.03); }
.tile-copy {
  position: absolute;
  z-index: 4;
  left: 18px;
  right: 18px;
  bottom: 16px;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 4px 12px;
}
.tile-copy p { grid-column: 1 / -1; margin: 0 0 4px; color: var(--cyan); font: 600 14px var(--font-mono); letter-spacing: .6px; }
.tile-copy h2 { margin: 0; font-size: clamp(19px, 1.45vw, 24px); font-weight: 600; letter-spacing: -.03em; color: #f2f7fa; }
.tile-copy strong { color: #eaf2f6; font: 600 16px var(--font-mono); }
.hardware-index-hint { margin: 0; color: #8aa3b0; font: 600 12px var(--font-mono); letter-spacing: .6px; text-align: center; }
.hardware-index-hint span { margin-right: 8px; color: var(--amber); }

/* ---------- 硬件详情弹窗 ---------- */
.hardware-detail-layer {
  position: fixed;
  z-index: 90;
  inset: 0;
  padding: 5vh 5vw;
  display: none;
  place-items: center;
  background: rgba(1, 4, 7, .88);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
}
.hardware-detail-layer.open { display: grid; animation: detail-fade .22s ease both; }
.hardware-detail-panel {
  position: relative;
  width: min(1320px, 100%);
  max-height: 90vh;
  min-height: 600px;
  overflow: auto;
  display: grid;
  grid-template-columns: minmax(260px, .75fr) minmax(460px, 1.35fr) minmax(230px, .65fr);
  align-items: center;
  gap: clamp(25px, 3.2vw, 55px);
  padding: clamp(32px, 4vw, 62px);
  border: 1px solid rgba(114, 233, 245, .35);
  background:
    radial-gradient(circle at 53% 46%, rgba(36, 126, 163, .25), transparent 31%),
    linear-gradient(145deg, #08121a, #03070a 74%);
  box-shadow: 0 50px 150px rgba(0, 0, 0, .62);
  animation: detail-rise .32s ease both;
}
.hardware-detail-panel::before {
  content: "";
  position: absolute;
  inset: 12px;
  border: 1px solid rgba(178, 225, 240, .07);
  pointer-events: none;
}
.hardware-detail-close {
  position: absolute;
  z-index: 8;
  top: 18px;
  right: 18px;
  width: 34px;
  height: 34px;
  padding: 0;
  color: #dff8fb;
  border: 1px solid rgba(114, 233, 245, .34);
  background: rgba(3, 12, 17, .78);
  font-size: 23px;
  line-height: 30px;
  cursor: pointer;
}
.hardware-detail-copy { position: relative; z-index: 2; }
.hardware-detail-copy h2 {
  margin: 0 0 20px;
  font-size: clamp(36px, 3.25vw, 54px);
  font-weight: 570;
  line-height: 1.07;
  letter-spacing: -.055em;
}
.hardware-detail-copy > p { margin: 0; color: #9dafb8; font-size: 14px; line-height: 1.75; }
.hardware-detail-visual {
  position: relative;
  z-index: 2;
  min-width: 0;
  min-height: 430px;
  display: grid;
  place-items: center;
}
.hardware-detail-visual > img {
  width: min(105%, 720px);
  max-height: 470px;
  object-fit: contain;
  filter: drop-shadow(0 45px 30px rgba(0, 0, 0, .64));
  animation: product-float 6s ease-in-out infinite;
}
.hardware-detail-specs { position: relative; z-index: 2; }
.hardware-detail-specs > p { margin: 0 0 14px; color: var(--cyan); font: 600 16px var(--font-mono); letter-spacing: .6px; }
.hardware-detail-specs dl { margin: 0; border-top: 1px solid var(--line); }
.hardware-detail-specs dl > div { padding: 15px 0; border-bottom: 1px solid var(--line); }
.hardware-detail-specs dt { display: flex; gap: 8px; margin-bottom: 6px; color: #718894; font-size: 10px; font-weight: 500; }
.hardware-detail-specs dt small { color: var(--amber); font: 700 10px var(--font-mono); }
.hardware-detail-specs dd { margin: 0; color: #d8e4e9; font-size: 13px; line-height: 1.55; }

/* ---------- 产品详情子页 ---------- */
.product-page { background: radial-gradient(circle at 56% 45%, rgba(35, 122, 161, .23), transparent 32%), #03070a; }
.product-detail {
  position: relative;
  min-height: calc(100svh - var(--nav-height));
  padding: 60px clamp(28px, 5.6vw, 96px);
  display: grid;
  grid-template-columns: minmax(260px, .85fr) minmax(430px, 1.35fr) minmax(230px, .72fr);
  align-items: center;
  gap: clamp(25px, 3.3vw, 60px);
  overflow: hidden;
}
.product-code-ghost {
  position: absolute;
  right: -1vw;
  top: -2vw;
  color: rgba(160, 213, 236, .035);
  font-size: clamp(120px, 19vw, 350px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -.08em;
  pointer-events: none;
}
.product-copy { position: relative; z-index: 2; }
.product-copy h1 {
  margin: 0 0 22px;
  font-size: clamp(38px, 3.6vw, 60px);
  font-weight: 570;
  line-height: 1.06;
  letter-spacing: -.055em;
}
.product-copy h1 em { display: inline-block; padding-bottom: 10px; vertical-align: baseline; }
.product-copy > p { max-width: 390px; color: #9dafb8; font-size: 14px; line-height: 1.75; }
.metric {
  margin-top: 36px;
  padding: 15px 0 15px 18px;
  border-left: 2px solid var(--cyan);
  background: linear-gradient(90deg, rgba(65, 157, 190, .12), transparent);
}
.metric b { display: block; color: #edfaff; font: 520 clamp(35px, 3.4vw, 57px) var(--font-mono); letter-spacing: -.05em; text-shadow: 0 0 32px rgba(114, 233, 245, .25); }
.metric span { color: #8598a3; font-size: 11px; letter-spacing: 1.1px; }
.product-image {
  position: relative;
  z-index: 2;
  min-width: 0;
  min-height: 490px;
  display: grid;
  place-items: center;
}
.product-stage-ring {
  position: absolute;
  width: 72%;
  aspect-ratio: 1;
  border: 1px solid rgba(114, 233, 245, .18);
  border-radius: 50%;
  box-shadow: 0 0 90px rgba(48, 148, 184, .14), inset 0 0 70px rgba(48, 148, 184, .06);
}
.product-stage-ring::before, .product-stage-ring::after {
  content: "";
  position: absolute;
  border-radius: 50%;
}
.product-stage-ring::before { inset: 14%; border: 1px solid rgba(114, 233, 245, .1); }
.product-stage-ring::after { inset: 32%; border: 1px solid rgba(229, 167, 90, .18); box-shadow: 0 0 50px rgba(229, 167, 90, .1); }
.product-image > img {
  position: relative;
  z-index: 1;
  width: min(112%, 740px);
  max-height: 500px;
  object-fit: contain;
  filter: drop-shadow(0 48px 33px rgba(0, 0, 0, .62));
  animation: product-float 6s ease-in-out infinite;
}
.product-specs { position: relative; z-index: 2; }
.product-specs > p { margin: 0 0 15px; color: var(--cyan); font: 600 16px var(--font-mono); letter-spacing: .6px; }
.product-specs dl { margin: 0; border-top: 1px solid var(--line); }
.product-specs dl > div { padding: 17px 0; border-bottom: 1px solid var(--line); }
.product-specs dt { display: flex; align-items: center; gap: 9px; margin-bottom: 7px; color: #768b97; font-size: 10px; font-weight: 500; }
.product-specs dt small { color: var(--amber); font: 700 10px var(--font-mono); }
.product-specs dd { margin: 0; color: #d9e4e9; font-size: 13px; line-height: 1.55; }
.asset-placeholder {
  width: 80%;
  min-height: 310px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line-strong);
  background: rgba(10, 34, 45, .3);
  text-align: center;
}
.asset-placeholder b { color: var(--cyan); font: 500 50px var(--font-mono); }
.asset-placeholder span { display: block; margin-top: 14px; color: #768c98; font-size: 10px; }

/* ---------- 软件页 ---------- */
.software-page { background: radial-gradient(circle at 76% 18%, rgba(34, 120, 162, .21), transparent 28%), #03070b; }
.software-hero {
  min-height: calc(100svh - var(--nav-height));
  padding: clamp(40px, 4vw, 64px) clamp(28px, 6.3vw, 112px) 76px;
  display: grid;
  grid-template-columns: minmax(330px, .85fr) minmax(520px, 1.15fr);
  grid-template-rows: auto auto;
  align-items: center;
  column-gap: 5vw;
  row-gap: 58px;
}
.software-intro h1 {
  margin: 0 0 40px;
  font-size: clamp(43px, 4.35vw, 70px);
  font-weight: 570;
  line-height: 1.3;
  letter-spacing: -.055em;
  padding-bottom: 8px;
}
.software-intro h1 em { display: inline-block; padding-bottom: 10px; }
.software-lead, .software-support {
  max-width: 560px;
  margin: 0 0 12px;
  color: #c9d7dd;
  font-size: 16px;
  line-height: 1.72;
}
.software-support { margin-bottom: 0; }
.software-flow {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-top: 28px;
  color: #9fc4d4;
  font-size: 13px;
  letter-spacing: .5px;
}
.software-flow span { font-size: 13px; }
.software-flow i { color: var(--amber); font-style: normal; font-size: 14px; }
.software-flow b { padding: 7px 10px; color: #071014; background: var(--cyan); font-family: var(--font-mono); font-weight: 700; }
.software-visual { position: relative; }
.software-visual-frame {
  padding: 1px;
  border: 1px solid rgba(114, 233, 245, .2);
  background: rgba(4, 10, 14, .64);
  clip-path: polygon(0 0, 92% 0, 100% 12%, 100% 100%, 8% 100%, 0 88%);
}
.software-visual-frame img { display: block; width: 100%; }
.visual-tag {
  position: absolute;
  z-index: 2;
  padding: 7px 11px;
  border: 1px solid rgba(114, 233, 245, .28);
  background: rgba(4, 13, 18, .82);
  color: #b8d4e0;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .5px;
}
.tag-a { left: -16px; top: 23%; }
.tag-b { right: -17px; top: 44%; }
.tag-c { left: 14%; bottom: 7%; }
.agent-points {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.agent-points > div {
  min-height: 130px;
  padding: 22px;
  border-right: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(12, 27, 37, .35), transparent);
}
.agent-points > div:last-child { border-right: 0; }
.agent-points span { display: block; margin-bottom: 13px; color: var(--amber); font: 700 18px var(--font-mono); }
.agent-points b { display: block; margin-bottom: 8px; font-size: 18px; font-weight: 550; }
.agent-points p { margin: 0; color: #899ca6; font-size: 12px; line-height: 1.68; }

.function-center {
  padding: 84px clamp(28px, 6.3vw, 112px) 110px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(8, 20, 28, .55), #03070a);
}
.function-lead {
  display: grid;
  grid-template-columns: 1fr .55fr;
  gap: 80px;
  align-items: end;
  padding-bottom: 54px;
  border-bottom: 1px solid var(--line);
}
.function-lead h2 {
  margin: 0;
  font-size: clamp(35px, 3.55vw, 56px);
  font-weight: 560;
  line-height: 1.1;
  letter-spacing: -.045em;
}
.function-lead h2 strong {
  color: transparent;
  background: linear-gradient(100deg, #e3fbff 0, var(--cyan) 48%, var(--blue) 100%);
  background-clip: text;
  -webkit-background-clip: text;
}
.function-lead > p:last-child { grid-column: 2; grid-row: 1; margin: 0; color: #98aab3; font-size: 14px; line-height: 1.75; }
.function-list article {
  position: relative;
  min-height: 410px;
  display: grid;
  grid-template-columns: 76px .9fr 1.05fr;
  gap: clamp(25px, 4vw, 70px);
  align-items: center;
  padding: 52px 0;
  border-bottom: 1px solid var(--line);
}
.function-list article.reverse .function-screen { grid-column: 2; grid-row: 1; }
.function-list article.reverse .function-copy { grid-column: 3; grid-row: 1; }
.function-number { align-self: start; padding-top: 8px; }
.function-number span { display: block; margin-bottom: 12px; color: var(--amber); font: 700 18px var(--font-mono); }
.function-number small {
  display: block;
  color: #9fc4d4;
  font: 8px/1.5 var(--font-mono);
  letter-spacing: 1px;
  writing-mode: vertical-rl;
}
.function-copy h2 { margin: 0 0 14px; font-size: clamp(28px, 2.55vw, 41px); font-weight: 560; line-height: 1.13; letter-spacing: -.045em; }
.function-copy > p { max-width: 500px; margin: 0; color: #b8ccd6; font-size: 14px; line-height: 1.75; }
.function-copy ul { display: flex; flex-wrap: wrap; gap: 7px; margin: 20px 0 24px; padding: 0; list-style: none; }
.function-copy li { padding: 7px 9px; color: #aac0ca; border: 1px solid var(--line); font-size: 11px; }
.function-screen {
  height: 280px;
  overflow: hidden;
  display: block;
  padding: 0;
  border: 0;
  cursor: pointer;
  clip-path: polygon(0 0, 94% 0, 100% 10%, 100% 100%, 0 100%);
  background: #020507;
}
.function-screen img { width: 100%; height: 100%; object-fit: cover; opacity: .78; filter: saturate(.72) contrast(1.05); transition: transform .5s ease, opacity .3s; }
.function-screen:hover img { transform: scale(1.04); opacity: .96; }
/* 支柱标签（看懂/记住/做事） */
.function-copy .pillar {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  padding: 5px 12px 5px 10px;
  border-left: 3px solid var(--cyan);
  color: var(--cyan);
  font: 700 22px var(--font-sans);
  letter-spacing: .04em;
  background: linear-gradient(90deg, rgba(114, 233, 245, .12), transparent);
}
/* 缩略图角标 */
.function-screen { position: relative; }
.function-screen .screen-play, .function-screen .screen-pending {
  position: absolute; z-index: 2; left: 16px; bottom: 14px;
  padding: 8px 12px; border: 1px solid rgba(114, 233, 245, .35);
  background: rgba(4, 13, 18, .82); color: #b8d4e0; font: 600 12px var(--font-mono); letter-spacing: .5px;
}
.function-screen .screen-play i { display: inline-block; width: 0; height: 0; margin-right: 7px; border-left: 7px solid var(--cyan); border-top: 5px solid transparent; border-bottom: 5px solid transparent; vertical-align: middle; }
.function-screen.pending { cursor: default; }
.function-screen.pending .screen-pending { color: #6e8a99; border-color: rgba(110, 138, 153, .3); }
.function-screen.pending img { opacity: .4; }
.function-screen.pending:hover img { transform: none; opacity: .4; }

/* 视频弹窗 */
.video-modal {
  position: fixed;
  z-index: 100;
  inset: 0;
  display: none;
  place-items: center;
  padding: 5vh 5vw;
  background: rgba(1, 4, 7, .92);
  backdrop-filter: blur(22px);
  -webkit-backdrop-filter: blur(22px);
}
.video-modal.open { display: grid; animation: detail-fade .22s ease both; }
.video-modal-panel {
  width: min(1100px, 100%);
  background: linear-gradient(145deg, #08121a, #03070a);
  border: 1px solid rgba(114, 233, 245, .35);
  box-shadow: 0 50px 150px rgba(0, 0, 0, .62);
}
.video-modal-head {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
}
.video-modal-head span { color: var(--cyan); font: 11px var(--font-mono); letter-spacing: 1px; }
.video-modal-head b { flex: 1; font-size: 16px; font-weight: 540; }
.video-modal-head button {
  width: 34px; height: 34px; padding: 0;
  color: #dff8fb;
  border: 1px solid rgba(114, 233, 245, .34);
  background: rgba(3, 12, 17, .78);
  font-size: 23px; line-height: 30px;
  cursor: pointer;
}
.video-modal-panel video { display: block; width: 100%; max-height: 72vh; background: #000; }

/* ---------- 行业应用页 ---------- */
.scenario-console-page { height: 100svh; min-height: 720px; }
.scenario-console {
  height: calc(100svh - var(--nav-height));
  min-height: 646px;
  padding: 28px clamp(28px, 4.8vw, 84px) 24px;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 20px;
  overflow: hidden;
}
.scenario-console-intro { display: grid; grid-template-columns: 1fr minmax(320px, .48fr); gap: 70px; align-items: end; }
.scenario-console-intro h1 {
  margin: 0;
  font-size: clamp(33px, 3vw, 49px);
  font-weight: 570;
  line-height: 1.1;
  letter-spacing: -.05em;
}
.scenario-browser {
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(230px, 275px) minmax(0, 1fr);
  border: 1px solid var(--line);
  background: rgba(5, 12, 17, .82);
}
.industry-index {
  min-height: 0;
  display: grid;
  grid-template-rows: repeat(5, minmax(0, 1fr));
  border-right: 1px solid var(--line);
}
.industry-index button {
  min-height: 0;
  padding: 10px 14px;
  display: grid;
  grid-template-columns: 28px 1fr auto;
  align-items: center;
  gap: 8px;
  color: #7f929d;
  text-align: left;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  transition: background .25s, color .25s;
}
.industry-index button:last-child { border-bottom: 0; }
.industry-index button > span { color: #8aa3b0; font: 700 16px var(--font-mono); }
.industry-index button b { display: block; margin-bottom: 3px; font-size: 18px; font-weight: 540; color: #e8f1f5; }
.industry-index button small { display: block; color: #4f6672; font: 8px var(--font-mono); letter-spacing: .75px; }
.industry-index button i { color: transparent; font-style: normal; transition: color .25s; }
.industry-index button:hover, .industry-index button.active { color: #e9f6f9; background: linear-gradient(90deg, rgba(45, 135, 168, .2), rgba(22, 59, 75, .08)); }
.industry-index button.active { box-shadow: inset 2px 0 var(--cyan); }
.industry-index button.active > span { color: var(--amber); }
.industry-index button.active i { color: var(--cyan); }
.scenario-stage { position: relative; min-width: 0; min-height: 0; display: grid; grid-template-rows: minmax(0, 1fr); }
.scenario-stage > header { position: absolute; z-index: 3; top: 0; left: 0; right: 0; height: 42px; padding: 0 16px; display: flex; align-items: center; border-bottom: 1px solid var(--line); background: rgba(5, 12, 17, .92); }
.scenario-stage > header span { color: var(--cyan); font: 8px var(--font-mono); letter-spacing: 1px; }
.scenario-stage-body { min-height: 0; display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(320px, .7fr); }
.scenario-stage-media {
  min-width: 0;
  min-height: 0;
  position: relative;
  overflow: hidden;
  background: #010304;
  border-right: 1px solid var(--line);
}
.scenario-stage-media::after { content: ""; position: absolute; inset: 0; pointer-events: none; box-shadow: inset 0 0 60px rgba(0, 0, 0, .34); }
.scenario-stage-media video { display: block; width: 100%; height: 100%; object-fit: contain; background: #000; }
/* 视频全屏按钮 */
.video-wrap { position: relative; width: 100%; height: 100%; }
.video-wrap video { display: block; width: 100%; height: 100%; object-fit: contain; background: #000; }
.fs-btn {
  position: absolute; z-index: 5; right: 14px; top: 14px;
  width: 38px; height: 38px; padding: 0;
  display: flex; align-items: center; justify-content: center;
  color: #dff8fb; font-size: 20px; line-height: 1;
  border: 1px solid rgba(114, 233, 245, .4);
  background: rgba(3, 12, 17, .82);
  cursor: pointer; transition: background .2s, border-color .2s;
}
.fs-btn:hover { background: rgba(46, 140, 170, .5); border-color: var(--cyan); }
.scenario-stage-media .pending-visual {
  width: 100%;
  min-height: 100%;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at 50% 50%, rgba(30, 100, 135, .18), transparent 50%);
}
.pending-visual b { color: var(--cyan); font: 600 28px var(--font-mono); }
.pending-visual small { display: block; margin-top: 12px; color: #6e8a99; font: 9px var(--font-mono); letter-spacing: 1px; }
.scenario-stage-copy {
  position: relative;
  z-index: 4;
  min-width: 0;
  padding: 18px clamp(25px, 3vw, 46px) clamp(25px, 3vw, 46px);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  background: linear-gradient(180deg, rgba(8, 18, 26, .96), rgba(8, 18, 26, .82)), radial-gradient(circle at 100% 0, rgba(40, 120, 155, .17), transparent 42%);
}
.scenario-stage-copy > p { margin: 0 0 8px; color: var(--cyan); font: 9px var(--font-mono); letter-spacing: 1px; }
.scenario-stage-copy h2 { margin: 0 0 14px; font-size: clamp(28px, 2.45vw, 40px); font-weight: 560; line-height: 1.12; letter-spacing: -.05em; }
.scenario-stage-copy > span { color: #93a5ae; font-size: 14px; line-height: 1.72; }
/* 行业案例描述分段层次 */
.copy-p { color: #93a5ae; font-size: 14px; line-height: 1.72; margin: 0; }
.copy-p + .copy-p { margin-top: 12px; }
.copy-p-1 { color: #d3e2e9; font-size: 15px; font-weight: 500; }
.copy-p-2 { color: #93a5ae; }
.copy-p-3 { color: var(--cyan); font-weight: 500; padding-left: 12px; border-left: 2px solid var(--cyan); }
.scenario-flow { display: grid; grid-template-columns: repeat(3, 1fr); margin: 24px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.scenario-flow > div { position: relative; padding: 13px 5px; border-right: 1px solid var(--line); }
.scenario-flow > div:last-child { border-right: 0; }
.scenario-flow small { display: block; margin-bottom: 5px; color: var(--amber); font: 8px var(--font-mono); }
.scenario-flow b { color: #cad9df; font-size: 11px; font-weight: 520; }
.scenario-flow i { position: absolute; top: 50%; right: -5px; z-index: 2; color: var(--cyan); font-style: normal; font-size: 9px; transform: translateY(-50%); }
.scenario-stage-copy dl { margin: 0; padding-left: 11px; border-left: 2px solid var(--cyan); }
.scenario-stage-copy dt { margin-bottom: 4px; color: #617985; font-size: 10px; }
.scenario-stage-copy dd { margin: 0; color: #d5e4e9; font-size: 12px; line-height: 1.55; }

/* ---------- 关键帧 ---------- */
@keyframes hero-breathe { from { transform: scale(1.025); } to { transform: scale(1.085); } }
@keyframes product-float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }
@keyframes rise-in { from { opacity: 0; transform: translateY(22px); } to { opacity: 1; transform: none; } }
@keyframes detail-fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes detail-rise { from { opacity: 0; transform: translateY(18px) scale(.99); } to { opacity: 1; transform: none; } }

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .nav { grid-template-columns: auto 1fr auto; }
  .product-detail { grid-template-columns: .8fr 1.25fr; }
  .product-specs { grid-column: 1 / -1; display: grid; grid-template-columns: 160px 1fr; align-items: start; }
  .product-specs dl { display: grid; grid-template-columns: repeat(4, 1fr); }
  .product-specs dl > div { padding: 15px 12px; border-left: 1px solid var(--line); }
  .software-hero { grid-template-columns: .9fr 1.1fr; }
}
@media (max-width: 820px) {
  :root { --nav-height: 110px; }
  .nav { grid-template-columns: 1fr; grid-template-rows: auto 40px; padding: 12px clamp(20px, 4vw, 32px) 0; }
  .nav nav { grid-row: 2; overflow-x: auto; }
  .nav nav a { min-width: auto; padding: 0 14px; font-size: 12px; }
  .lobby-copy { flex-basis: 100%; max-width: 100%; }
  .hero-stack { position: relative; right: auto; bottom: auto; width: 100%; max-width: 100%; margin-top: 24px; }
  .hero-proof { position: relative; left: auto; bottom: auto; margin-top: 24px; }
  .software-hero { display: block; padding: 65px 24px 60px; }
  .product-detail { display: block; padding: 55px 24px 65px; }
  .product-specs { display: block; margin-top: 30px; }
  .product-specs dl { display: block; }
  .agent-points { grid-template-columns: repeat(2, 1fr); margin-top: 62px; }
  .function-list article { grid-template-columns: 60px 1fr; }
  .function-screen { display: none; }
}
@media (max-width: 540px) {
  .contact { display: none; }
  .brand { font-size: 16px; }
  .lobby-copy h1 { font-size: 46px; }
  .hero-lead { font-size: 14px; }
  .product-copy h1 { font-size: 42px; }
  .software-intro h1 { font-size: 41px; }
  .function-lead h2, .scenario-console-intro h1, .hardware-index-intro h1 { font-size: 36px; }
}
@media (max-width: 1000px) {
  .hardware-index-page, .scenario-console-page { height: auto; min-height: 100svh; }
  .hardware-index, .scenario-console { height: auto; min-height: calc(100svh - var(--nav-height)); overflow: visible; }
  .hardware-index-grid { grid-template-columns: repeat(2, 1fr); grid-template-rows: repeat(3, 260px); }
  .hardware-detail-panel { grid-template-columns: .8fr 1.2fr; }
  .hardware-detail-specs { grid-column: 1 / -1; }
  .hardware-detail-specs dl { display: grid; grid-template-columns: repeat(4, 1fr); }
  .hardware-detail-specs dl > div { padding: 13px; border-left: 1px solid var(--line); }
  .scenario-browser { grid-template-columns: 210px 1fr; }
  .scenario-stage-body { grid-template-columns: 1fr; grid-template-rows: minmax(300px, 1fr) auto; }
  .scenario-stage-media { border-right: 0; border-bottom: 1px solid var(--line); }
}
@media (max-width: 700px) {
  .home-single-screen { height: auto; min-height: 100svh; }
  .home-single-screen .lobby-hero { height: auto; min-height: calc(100svh - var(--nav-height)); }
  .hardware-index, .scenario-console { padding: 35px 20px 30px; }
  .hardware-index-intro, .scenario-console-intro { display: block; }
  .hardware-index-grid { grid-template-columns: 1fr; grid-template-rows: repeat(6, 250px); }
  .hardware-detail-layer { padding: 0; align-items: start; overflow-y: auto; }
  .hardware-detail-panel { width: 100%; max-height: none; min-height: 100svh; display: block; padding: 58px 24px 35px; }
  .hardware-detail-visual { min-height: 330px; margin: 18px 0; }
  .hardware-detail-specs dl { display: block; }
  .scenario-browser { display: block; }
  .industry-index { grid-template-rows: none; grid-template-columns: repeat(2, 1fr); border-right: 0; border-bottom: 1px solid var(--line); }
  .industry-index button { min-height: 70px; }
  .scenario-stage-body { display: block; }
  .scenario-stage-media { height: 270px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition-duration: .01ms !important; }
}

/* ---------- 功能区占位卡（无图时显示，带说明） ---------- */
.screen-placeholder {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 30px 24px; text-align: center;
  background:
    radial-gradient(circle at 50% 40%, rgba(45, 139, 174, .22), transparent 60%),
    linear-gradient(160deg, rgba(14, 28, 38, .96), rgba(4, 9, 13, .99));
}
.screen-placeholder .ph-en {
  color: var(--cyan); font: 700 13px var(--font-mono); letter-spacing: 2px;
  margin-bottom: 14px; opacity: .8;
}
.screen-placeholder .ph-name {
  color: #e8f1f5; font-size: 22px; font-weight: 560; letter-spacing: -.02em;
  margin-bottom: 18px;
}
.screen-placeholder .ph-tags {
  display: flex; flex-wrap: wrap; gap: 7px; justify-content: center;
}
.screen-placeholder .ph-tags span {
  padding: 6px 11px; color: #aac0ca;
  border: 1px solid rgba(114, 233, 245, .22);
  background: rgba(8, 22, 32, .5);
  font-size: 12px; border-radius: 2px;
}


/* ===== 全站页脚（备案信息，右下角等宽小字） ===== */
.site-footer {
  position: relative;
  z-index: 2;
  padding: 18px 6vw 22px;
  text-align: right;
  color: var(--muted);
  font-size: 12px;
  font-family: var(--font-mono);
  letter-spacing: .04em;
}
.site-footer p { margin: 0; }
.site-footer a { color: var(--muted); border-bottom: 1px dotted var(--line-strong); padding-bottom: 1px; }
.site-footer a:hover { color: var(--cyan); border-bottom-color: var(--cyan); }
/* 单屏首页：贴右下角悬浮于主视觉之上 */
body[data-page="home"] .site-footer {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: none;
  text-shadow: 0 1px 10px rgba(2, 5, 8, .9);
}