/* ==========================================================
   Meteor AI 流星宣传页 — 深空科幻主题
   ========================================================== */

:root {
  --c-bg: #04070d;
  --c-bg-2: #070d18;
  --c-panel: rgba(10, 20, 36, 0.62);
  --c-line: rgba(64, 200, 255, 0.16);
  --c-line-strong: rgba(64, 200, 255, 0.45);
  --c-cyan: #3ee0ff;
  --c-cyan-dim: #1899c2;
  --c-orange: #ff8a2a;
  --c-text: #d7e6f5;
  --c-text-dim: #7e94ad;
  --c-white: #f2f9ff;
  --font-main: "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "SF Mono", "JetBrains Mono", "Cascadia Code", Menlo, Consolas, monospace;
  --nav-h: 64px;
}

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

html { scroll-behavior: smooth; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-main);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

::selection { background: rgba(62, 224, 255, 0.3); color: var(--c-white); }

/* ---------- 背景层 ---------- */
#bg-particles {
  position: fixed; inset: 0; z-index: 0;
  pointer-events: none;
}
.bg-grid {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(62, 224, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(62, 224, 255, 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 40%, #000 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 40%, #000 30%, transparent 100%);
}
/* ---------- 分区氛围背景(随滚动交叉淡化) ---------- */
.ambient { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.ambient-layer {
  position: absolute; inset: 0;
  opacity: 0;
  will-change: opacity;
}

/* Hero:右侧青色光晕 + 顶部微光 */
.al-hero {
  opacity: 1; /* 无 JS 时的默认背景 */
  background:
    radial-gradient(ellipse 55% 60% at 78% 42%, rgba(18, 130, 178, 0.22), transparent 70%),
    radial-gradient(ellipse 70% 30% at 50% -5%, rgba(62, 224, 255, 0.07), transparent 70%);
}

/* 政策:暖金红大气光 + 垂直光柱,呼应国家战略的庄重感 */
.al-policy {
  background:
    radial-gradient(ellipse 60% 45% at 18% 12%, rgba(214, 60, 46, 0.24), transparent 70%),
    radial-gradient(ellipse 55% 50% at 85% 80%, rgba(255, 170, 60, 0.13), transparent 70%),
    repeating-linear-gradient(90deg, rgba(255, 170, 60, 0.035) 0 2px, transparent 2px 180px);
}
.al-policy::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse 40% 30% at 55% 30%, rgba(255, 200, 120, 0.05), transparent 70%);
  animation: ambient-drift 14s ease-in-out infinite alternate;
}

/* 软硬一体:电路板走线纹理 + 左青右橙双色光,呼应硬件/软件分栏 */
.al-bundle {
  background:
    radial-gradient(ellipse 45% 55% at 8% 50%, rgba(18, 130, 178, 0.18), transparent 70%),
    radial-gradient(ellipse 45% 55% at 92% 50%, rgba(255, 138, 42, 0.1), transparent 70%);
}
.al-bundle::after {
  content: ""; position: absolute; inset: 0; opacity: 0.55;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cg fill='none' stroke='%233ee0ff' stroke-opacity='0.09'%3E%3Cpath d='M20 20h60v40h80'/%3E%3Cpath d='M200 60v70h-50'/%3E%3Cpath d='M20 160h40v-60'/%3E%3Cpath d='M110 200v-40h70'/%3E%3C/g%3E%3Cg fill='%233ee0ff' fill-opacity='0.16'%3E%3Ccircle cx='20' cy='20' r='2.5'/%3E%3Ccircle cx='160' cy='60' r='2.5'/%3E%3Ccircle cx='150' cy='130' r='2.5'/%3E%3Ccircle cx='60' cy='100' r='2.5'/%3E%3Ccircle cx='180' cy='160' r='2.5'/%3E%3C/g%3E%3C/svg%3E");
  mask-image: radial-gradient(ellipse 75% 65% at 50% 50%, #000 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 75% 65% at 50% 50%, #000 20%, transparent 100%);
}

/* 智能体:紫青神经流,斜向数据流缓慢漂移 */
.al-agent {
  background:
    radial-gradient(ellipse 55% 55% at 30% 25%, rgba(124, 92, 255, 0.2), transparent 70%),
    radial-gradient(ellipse 50% 55% at 80% 75%, rgba(18, 178, 170, 0.16), transparent 70%);
}
.al-agent::after {
  content: ""; position: absolute; inset: -60% -20%;
  background: repeating-linear-gradient(115deg,
    rgba(62, 224, 255, 0.045) 0 1px, transparent 1px 90px,
    rgba(124, 92, 255, 0.04) 90px 91px, transparent 91px 200px);
  animation: ambient-slide 26s linear infinite;
}

/* 部署:左下雷达同心环 + 扫描扇面 */
.al-deploy {
  background:
    radial-gradient(ellipse 60% 55% at 70% 20%, rgba(18, 130, 178, 0.1), transparent 70%),
    repeating-radial-gradient(circle at 12% 92%, rgba(62, 224, 255, 0.055) 0 1.5px, transparent 1.5px 90px);
}
.al-deploy::after {
  content: ""; position: absolute; left: -28vw; bottom: -28vw;
  width: 56vw; height: 56vw; border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(62, 224, 255, 0.13), transparent 70deg, transparent 360deg);
  animation: ambient-radar 8s linear infinite;
}

/* 场景:底部城市天际线剪影 + 城市灯光 */
.al-scenes {
  background:
    radial-gradient(ellipse 70% 40% at 50% 100%, rgba(18, 100, 160, 0.16), transparent 75%),
    radial-gradient(ellipse 40% 30% at 25% 15%, rgba(62, 224, 255, 0.06), transparent 70%);
}
.al-scenes::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 34vh;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='1200' height='240' preserveAspectRatio='none'%3E%3Cpath fill='%230a1626' fill-opacity='0.85' d='M0 240V150h40v-40h30v40h50V90h35v-25h12v25h33v60h45V110h55V70h14V50h12v20h14v40h50v50h40V130h60v-45h16V60h14v25h20v45h55v30h45V100h38v-30h13v30h39v60h50v-60h45V80h30v80h55v-50h40v50h48V95h42v65h60v80z'/%3E%3Cg fill='%233ee0ff' fill-opacity='0.35'%3E%3Crect x='75' y='125' width='4' height='4'/%3E%3Crect x='170' y='105' width='4' height='4'/%3E%3Crect x='262' y='130' width='4' height='4'/%3E%3Crect x='340' y='95' width='4' height='4'/%3E%3Crect x='488' y='150' width='4' height='4'/%3E%3Crect x='585' y='105' width='4' height='4'/%3E%3Crect x='700' y='125' width='4' height='4'/%3E%3Crect x='805' y='140' width='4' height='4'/%3E%3Crect x='902' y='105' width='4' height='4'/%3E%3Crect x='1005' y='135' width='4' height='4'/%3E%3Crect x='1105' y='120' width='4' height='4'/%3E%3C/g%3E%3C/svg%3E");
  background-size: 100% 100%;
}

/* 规格:蓝图工程网格 + 十字定位标 */
.al-specs {
  background:
    radial-gradient(ellipse 65% 55% at 50% 40%, rgba(16, 70, 120, 0.16), transparent 75%),
    linear-gradient(rgba(62, 224, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(62, 224, 255, 0.05) 1px, transparent 1px);
  background-size: auto, 28px 28px, 28px 28px;
}
.al-specs::after {
  content: ""; position: absolute; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='280' height='280'%3E%3Cg stroke='%233ee0ff' stroke-opacity='0.14'%3E%3Cpath d='M140 128v24M128 140h24'/%3E%3C/g%3E%3C/svg%3E");
}

/* CTA:中心橙青双色能量光 */
.al-cta {
  background:
    radial-gradient(ellipse 50% 45% at 50% 42%, rgba(18, 150, 190, 0.2), transparent 70%),
    radial-gradient(ellipse 30% 25% at 50% 68%, rgba(255, 138, 42, 0.1), transparent 70%);
}
.al-cta::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 40% at 50% 45%, rgba(62, 224, 255, 0.06), transparent 70%);
  animation: ambient-pulse 4.5s ease-in-out infinite;
}

@keyframes ambient-drift {
  from { transform: translate3d(-3%, 0, 0); }
  to { transform: translate3d(3%, 2%, 0); }
}
@keyframes ambient-slide {
  from { transform: translate3d(0, 0, 0); }
  to { transform: translate3d(180px, 90px, 0); }
}
@keyframes ambient-radar { to { transform: rotate(360deg); } }
@keyframes ambient-pulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

.scanline {
  position: fixed; left: 0; right: 0; top: -20%; height: 18vh; z-index: 1;
  pointer-events: none;
  background: linear-gradient(180deg, transparent, rgba(62, 224, 255, 0.04) 45%, rgba(62, 224, 255, 0.09) 50%, rgba(62, 224, 255, 0.04) 55%, transparent);
  animation: scan 9s linear infinite;
  opacity: 0.8;
}
@keyframes scan {
  0% { transform: translateY(-10vh); }
  100% { transform: translateY(130vh); }
}

main { position: relative; z-index: 2; }

/* ---------- 导航 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  height: var(--nav-h);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(4, 7, 13, 0.55);
  border-bottom: 1px solid var(--c-line);
  transition: background 0.4s;
}
.nav-inner {
  max-width: 1280px; margin: 0 auto; height: 100%;
  padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; white-space: nowrap; }
.logo-mark {
  width: 24px; height: 24px; flex: none; display: block;
  filter: drop-shadow(0 0 8px rgba(62, 224, 255, 0.55));
}
.logo-text {
  font-family: var(--font-mono); font-weight: 700; letter-spacing: 0.18em;
  color: var(--c-white); font-size: 15px;
}
.logo-cn { font-size: 12px; color: var(--c-text-dim); letter-spacing: 0.2em; }
.nav-links { display: flex; gap: 26px; font-size: 14px; }
.nav-links a { color: var(--c-text-dim); transition: color 0.25s; position: relative; }
.nav-links a:hover { color: var(--c-cyan); }
.nav-cta {
  font-size: 13px; padding: 8px 18px; white-space: nowrap;
  border: 1px solid var(--c-line-strong); color: var(--c-cyan);
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
  background: rgba(62, 224, 255, 0.06);
  transition: background 0.25s, color 0.25s;
}
.nav-cta:hover { background: rgba(62, 224, 255, 0.18); color: var(--c-white); }

/* ---------- 右侧浮动定位栏 ---------- */
.side-nav {
  position: fixed; right: 26px; top: 50%; transform: translateY(-50%);
  z-index: 40;
  display: flex; flex-direction: column; gap: 4px;
}
.side-nav::before {
  content: ""; position: absolute; right: 5px; top: 10px; bottom: 10px;
  width: 1px; background: linear-gradient(180deg, transparent, var(--c-line-strong), transparent);
}
.side-nav-item {
  position: relative;
  display: flex; align-items: center; justify-content: flex-end; gap: 12px;
  padding: 7px 0;
}
.side-dot {
  position: relative; z-index: 1; flex: none;
  width: 11px; height: 11px;
  border: 1px solid rgba(62, 224, 255, 0.4);
  background: var(--c-bg);
  transform: rotate(45deg);
  transition: border-color 0.3s, background 0.3s, box-shadow 0.3s, transform 0.3s;
}
.side-label {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.12em;
  color: var(--c-cyan); white-space: nowrap;
  padding: 4px 10px;
  border: 1px solid var(--c-line); background: var(--c-panel);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  clip-path: polygon(5px 0, 100% 0, 100% calc(100% - 5px), calc(100% - 5px) 100%, 0 100%, 0 5px);
  opacity: 0; transform: translateX(8px);
  transition: opacity 0.25s, transform 0.25s;
  pointer-events: none;
}
.side-nav-item:hover .side-dot {
  border-color: var(--c-cyan);
  box-shadow: 0 0 10px rgba(62, 224, 255, 0.5);
}
.side-nav-item:hover .side-label,
.side-nav-item.is-active .side-label {
  opacity: 1; transform: translateX(0);
}
.side-nav-item.is-active .side-dot {
  background: var(--c-cyan); border-color: var(--c-cyan);
  box-shadow: 0 0 14px rgba(62, 224, 255, 0.85);
  transform: rotate(45deg) scale(1.25);
}
.side-nav-item.is-active .side-label {
  color: var(--c-white); border-color: var(--c-line-strong);
}

/* ---------- 通用 ---------- */
.section {
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
  padding: clamp(72px, 11vw, 140px) 24px;
}
.section-head { max-width: 780px; margin-bottom: clamp(40px, 6vw, 72px); }
.section-eyebrow {
  font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.25em;
  color: var(--c-cyan); margin-bottom: 16px;
}
.section-title {
  font-size: clamp(28px, 4.6vw, 48px);
  line-height: 1.25; font-weight: 700; color: var(--c-white);
  letter-spacing: 0.02em;
  margin-bottom: 18px;
}
.section-desc { color: var(--c-text-dim); font-size: clamp(15px, 1.6vw, 17px); }
.section-desc strong { color: var(--c-cyan); font-weight: 600; }
.accent-text {
  background: linear-gradient(96deg, var(--c-cyan) 20%, #7ef0ff 55%, var(--c-orange) 110%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.br-m { display: none; }

.btn {
  display: inline-block; padding: 14px 34px; font-size: 15px; font-weight: 600;
  letter-spacing: 0.08em; cursor: pointer;
  clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
  transition: transform 0.25s, box-shadow 0.25s, background 0.25s;
}
.btn-primary {
  background: linear-gradient(94deg, #0e6c8c, #12a2c9);
  color: var(--c-white);
  box-shadow: 0 0 24px rgba(62, 224, 255, 0.25);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 42px rgba(62, 224, 255, 0.45); }
.btn-ghost {
  border: 1px solid var(--c-line-strong); color: var(--c-cyan);
  background: rgba(62, 224, 255, 0.05);
}
.btn-ghost:hover { background: rgba(62, 224, 255, 0.14); }
.btn-lg { padding: 18px 52px; font-size: 17px; }

/* ---------- 1. Hero ---------- */
.hero {
  position: relative; min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  padding: calc(var(--nav-h) + 32px) 24px 64px;
  overflow: hidden;
}
.hero-halo {
  position: absolute; z-index: -1;
  top: 8%; right: -8%; width: 62vw; height: 62vw; max-width: 900px; max-height: 900px;
  background: radial-gradient(circle, rgba(18, 130, 178, 0.28) 0%, rgba(18, 130, 178, 0.06) 45%, transparent 70%);
  filter: blur(20px);
}
.hero-inner {
  max-width: 1280px; margin: 0 auto; width: 100%;
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  align-items: center; gap: 48px;
}
.hero-eyebrow {
  font-family: var(--font-mono); letter-spacing: 0.28em; font-size: 13px;
  color: var(--c-cyan); margin-bottom: 22px;
}
.tag-bracket { color: var(--c-orange); }
.hero-title {
  font-size: clamp(34px, 5.6vw, 64px);
  line-height: 1.18; font-weight: 800; color: var(--c-white);
  letter-spacing: 0.02em; margin-bottom: 22px;
}
.hero-title span { display: block; }
.hero-sub {
  color: var(--c-text-dim); font-size: clamp(15px, 1.8vw, 18px);
  max-width: 520px; margin-bottom: 26px;
}
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 34px; }
.badge {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em;
  padding: 6px 14px; color: var(--c-cyan);
  border: 1px solid var(--c-line); background: rgba(62, 224, 255, 0.05);
  clip-path: polygon(6px 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%, 0 6px);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }

/* Hero 产品舞台 */
.hero-stage {
  position: relative;
  display: flex; align-items: center; justify-content: center;
  min-height: 480px;
}
/* 产品图后方的过渡辉光:衔接图片内部光效与页面背景,消除边缘断层 */
.hero-stage::before {
  content: ""; position: absolute; z-index: 1;
  left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: clamp(340px, 38vw, 520px); height: clamp(480px, 54vw, 760px);
  background:
    radial-gradient(ellipse 52% 40% at 46% 34%, rgba(62, 224, 255, 0.1), transparent 72%),
    radial-gradient(ellipse 48% 38% at 58% 80%, rgba(255, 150, 60, 0.09), transparent 72%),
    radial-gradient(ellipse 50% 50% at 50% 50%, rgba(7, 15, 28, 0.9), transparent 80%);
  filter: blur(22px);
  pointer-events: none;
}
.hero-product {
  position: relative; z-index: 2;
  width: clamp(260px, 30vw, 400px); height: auto;
  filter: drop-shadow(0 0 42px rgba(62, 224, 255, 0.1));
  /* 四周羽化,使图片自带的暗角平滑融入页面背景 */
  mask-image: radial-gradient(ellipse 64% 58% at 50% 50%, #000 58%, transparent 99%);
  -webkit-mask-image: radial-gradient(ellipse 64% 58% at 50% 50%, #000 58%, transparent 99%);
}
.hero-rings { position: absolute; inset: 0; display: grid; place-items: center; z-index: 1; }
.ring {
  position: absolute; border-radius: 50%;
  border: 1px solid var(--c-line);
}
.ring.r1 { width: 380px; height: 380px; border-color: rgba(62, 224, 255, 0.22); animation: spin 26s linear infinite; border-top-color: rgba(62, 224, 255, 0.65); }
.ring.r2 { width: 500px; height: 500px; animation: spin 40s linear infinite reverse; border-bottom-color: rgba(255, 138, 42, 0.4); }
.ring.r3 { width: 620px; height: 620px; border-style: dashed; opacity: 0.35; animation: spin 70s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* HUD 标注 */
.hud-callout {
  position: absolute; z-index: 3;
  display: flex; align-items: center;
  font-size: 13px;
}
.hud-dot {
  width: 8px; height: 8px; border-radius: 50%; flex: none;
  background: var(--c-cyan); box-shadow: 0 0 10px var(--c-cyan);
}
.hud-line { height: 1px; width: 64px; background: linear-gradient(90deg, var(--c-cyan), rgba(62, 224, 255, 0.15)); flex: none; }
.hud-label {
  padding: 7px 12px; border: 1px solid var(--c-line);
  background: var(--c-panel); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  color: var(--c-white); white-space: nowrap; line-height: 1.45;
  clip-path: polygon(6px 0, 100% 0, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0 100%, 0 6px);
}
.hud-label em { display: block; font-style: normal; font-size: 11px; color: var(--c-text-dim); }
.hc-lens { top: 17%; right: 50%; margin-right: 130px; flex-direction: row-reverse; }
.hc-lens .hud-line { background: linear-gradient(270deg, var(--c-cyan), rgba(62,224,255,0.15)); }
.hc-ptz { top: 36%; left: 50%; margin-left: 108px; }
.hc-ptz .hud-line, .hc-base .hud-line { width: 34px; }
.hc-ir { top: 47%; right: 50%; margin-right: 118px; flex-direction: row-reverse; }
.hc-ir .hud-line { background: linear-gradient(270deg, var(--c-cyan), rgba(62,224,255,0.15)); }
.hc-base { top: 66%; left: 50%; margin-left: 116px; }

/* 滚动提示 */
.scroll-hint {
  position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--c-text-dim);
}
.scroll-hint-text { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.4em; }
.scroll-hint-arrow {
  width: 1px; height: 34px;
  background: linear-gradient(180deg, var(--c-cyan), transparent);
  animation: hint 1.8s ease-in-out infinite;
}
@keyframes hint {
  0%, 100% { transform: scaleY(0.4); transform-origin: top; opacity: 0.4; }
  50% { transform: scaleY(1); opacity: 1; }
}

/* ---------- 2. 政策共振 ---------- */
.policy-quotes {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
  margin-bottom: clamp(48px, 6vw, 80px);
}
.policy-quote {
  position: relative; padding: 28px 24px;
  background: var(--c-panel); border: 1px solid var(--c-line);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.policy-quote::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px;
  background: linear-gradient(180deg, var(--c-cyan), transparent);
}
.quote-text { font-size: 16px; color: var(--c-white); line-height: 1.8; margin-bottom: 16px; }
.policy-quote cite { font-style: normal; font-size: 12px; color: var(--c-text-dim); font-family: var(--font-mono); }

.policy-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px;
  margin-bottom: clamp(40px, 5vw, 64px);
}
.stat {
  text-align: center; padding: 26px 12px 24px;
  border: 1px solid var(--c-line);
  background: linear-gradient(180deg, rgba(62, 224, 255, 0.04), transparent);
}
.stat-dial {
  position: relative; width: 128px; height: 128px;
  margin: 0 auto 14px;
  display: grid; place-items: center;
}
.stat-ring { position: absolute; inset: 0; transform: rotate(-90deg); }
.stat-ring circle { fill: none; stroke-width: 4; }
.stat-ring-bg { stroke: rgba(62, 224, 255, 0.1); }
.stat-ring-fg {
  stroke: var(--c-cyan); stroke-linecap: round;
  stroke-dasharray: 326.7; stroke-dashoffset: 65; /* 无 JS 时的静态弧 */
  filter: drop-shadow(0 0 6px rgba(62, 224, 255, 0.7));
}
.stat-num {
  display: flex; flex-direction: column; align-items: center;
  font-family: var(--font-mono); font-weight: 700;
  font-size: clamp(26px, 3vw, 34px); color: var(--c-cyan);
  text-shadow: 0 0 24px rgba(62, 224, 255, 0.45);
  line-height: 1.05;
}
.stat-num small { font-size: 0.42em; color: var(--c-orange); letter-spacing: 0.15em; margin-top: 2px; }
.stat-label { font-size: 13px; color: var(--c-text-dim); }

.policy-punch {
  font-size: clamp(18px, 2.4vw, 24px); text-align: center;
  color: var(--c-text); max-width: 860px; margin: 0 auto;
}
.policy-punch strong { color: var(--c-white); }

/* ---------- 3. 软硬一体 ---------- */
.bundle-grid {
  display: grid; grid-template-columns: 1fr 72px 1fr;
  align-items: stretch; gap: 0;
}
.bundle-col {
  padding: 34px 30px;
  background: var(--c-panel); border: 1px solid var(--c-line);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  position: relative;
}
.bundle-hw { border-image: linear-gradient(180deg, rgba(62,224,255,0.5), rgba(62,224,255,0.08)) 1; }
.bundle-sw { border-image: linear-gradient(180deg, rgba(255,138,42,0.55), rgba(255,138,42,0.08)) 1; }

/* 包装盒视觉:印刷定位十字标记 + 撕线分隔 + 条码footer,营造"打开即用"的整机套装感 */
.pack-box::before {
  content: ""; position: absolute; inset: 8px;
  border: 1px dashed rgba(126, 148, 173, 0.22);
  pointer-events: none;
}
.pack-mark { position: absolute; width: 13px; height: 13px; opacity: 0.6; pointer-events: none; }
.pack-mark::before, .pack-mark::after { content: ""; position: absolute; background: var(--c-line-strong); }
.pack-mark::before { top: 50%; left: 0; width: 100%; height: 1px; transform: translateY(-50%); }
.pack-mark::after { left: 50%; top: 0; width: 1px; height: 100%; transform: translateX(-50%); }
.pack-mark.tl { top: 2px; left: 2px; }
.pack-mark.tr { top: 2px; right: 2px; }
.pack-mark.bl { bottom: 2px; left: 2px; }
.pack-mark.br { bottom: 2px; right: 2px; }
.bundle-sw .pack-mark::before, .bundle-sw .pack-mark::after { background: rgba(255, 138, 42, 0.55); }

.bundle-col-head { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.bundle-svg-icon {
  width: 44px; height: 44px; flex: none;
  stroke: var(--c-cyan); fill: none;
  stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round;
  filter: drop-shadow(0 0 8px rgba(62, 224, 255, 0.35));
}
.bundle-svg-sw {
  stroke: var(--c-orange);
  filter: drop-shadow(0 0 8px rgba(255, 138, 42, 0.3));
}
.pack-box-title { display: flex; flex-direction: column; gap: 5px; }
.bundle-col-head h3 {
  font-family: var(--font-mono); font-size: 16px; letter-spacing: 0.14em; color: var(--c-white);
}
.pack-box-tag {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.05em;
  color: rgba(142, 236, 255, 0.6);
}
.bundle-sw .pack-box-tag { color: rgba(255, 176, 102, 0.65); }

.pack-divider {
  position: relative; height: 0; margin: 0 -30px 20px;
  border-top: 1px dashed rgba(126, 148, 173, 0.28);
}
.pack-divider::before, .pack-divider::after {
  content: ""; position: absolute; top: -7px; width: 14px; height: 14px;
  border-radius: 50%; background: var(--c-bg); border: 1px solid var(--c-line);
}
.pack-divider::before { left: -7px; }
.pack-divider::after { right: -7px; }

.pack-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px;
}
.pack-grid .pack-tile {
  display: flex; flex-direction: column; align-items: flex-start; gap: 10px;
  padding: 16px 14px; border: 1px solid var(--c-line);
  background: rgba(255, 255, 255, 0.02);
  transition: border-color 0.25s, background 0.25s;
}
.pack-grid .pack-tile:hover { border-color: var(--c-line-strong); background: rgba(62, 224, 255, 0.04); }
.bundle-sw .pack-grid .pack-tile:hover { background: rgba(255, 138, 42, 0.04); }
.pack-grid .pack-tile:last-child {
  grid-column: 1 / -1; flex-direction: row; align-items: center;
}
.pack-grid .pack-tile:last-child .bundle-item-body { flex: 1; }
.bundle-icon {
  flex: none; width: 38px; height: 38px; display: grid; place-items: center;
  font-size: 17px; color: var(--c-cyan);
  border: 1px solid var(--c-line-strong);
  background: rgba(62, 224, 255, 0.06);
  clip-path: polygon(7px 0, 100% 0, 100% calc(100% - 7px), calc(100% - 7px) 100%, 0 100%, 0 7px);
}
.bundle-sw .bundle-icon { color: var(--c-orange); background: rgba(255, 138, 42, 0.06); }
.bundle-item-body { display: block; }
.bundle-list strong { display: block; color: var(--c-white); font-size: 14px; margin-bottom: 4px; }
.bundle-list span { font-size: 12.5px; line-height: 1.5; color: var(--c-text-dim); }

.pack-footer {
  display: flex; align-items: center; gap: 12px;
  margin: 22px -30px -34px; padding: 14px 30px;
  border-top: 1px dashed rgba(126, 148, 173, 0.28);
}
.pack-barcode {
  flex: none; width: 68px; height: 24px; opacity: 0.5;
  background: repeating-linear-gradient(90deg,
    var(--c-text-dim) 0 1px, transparent 1px 3px,
    var(--c-text-dim) 3px 5px, transparent 5px 6px,
    var(--c-text-dim) 6px 8px, transparent 8px 11px);
}
.pack-sku {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; color: var(--c-text-dim);
}

.bundle-connector {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
}
.connector-line {
  width: 1px; flex: 1; position: relative;
  background: linear-gradient(180deg, transparent, var(--c-line-strong), transparent);
}
.connector-line::after {
  content: ""; position: absolute; left: 50%; top: 0;
  width: 6px; height: 6px; margin-left: -3px; border-radius: 50%;
  background: var(--c-cyan); box-shadow: 0 0 10px var(--c-cyan);
  animation: link-pulse-v 2.2s ease-in-out infinite;
}
.connector-line:last-child::after { animation-delay: 1.1s; background: var(--c-orange); box-shadow: 0 0 10px var(--c-orange); }
@keyframes link-pulse-v {
  0% { top: -4px; opacity: 0; }
  15% { opacity: 1; }
  85% { opacity: 1; }
  100% { top: calc(100% - 2px); opacity: 0; }
}
.connector-core {
  font-family: var(--font-mono); font-size: 22px; color: var(--c-orange);
  width: 46px; height: 46px; display: grid; place-items: center;
  border: 1px solid var(--c-line-strong); border-radius: 50%;
  background: rgba(4, 7, 13, 0.9);
  box-shadow: 0 0 22px rgba(62, 224, 255, 0.3);
}

/* ---------- 4. 视觉智能体 ---------- */
.agent-demo {
  display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: 22px; margin-bottom: clamp(44px, 6vw, 72px);
}
.demo-viewport {
  border: 1px solid var(--c-line); background: var(--c-panel);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  padding: 10px;
  display: flex; flex-direction: column; gap: 10px;
}
.demo-viewport svg { display: block; width: 100%; height: auto; }
.demo-rec { animation: rec-blink 1.2s steps(1) infinite; }
@keyframes rec-blink { 50% { opacity: 0.15; } }

/* 演示舱滑动器 */
.demo-stage {
  position: relative; overflow: hidden;
  touch-action: pan-y;
}
.demo-track {
  display: flex;
  transition: transform 0.55s cubic-bezier(0.22, 0.8, 0.3, 1);
  will-change: transform;
}
.demo-track.is-dragging { transition: none; }
.demo-slide {
  flex: 0 0 100%; min-width: 0;
  user-select: none; -webkit-user-select: none;
}
.demo-slide svg { pointer-events: none; }
.demo-arrow {
  position: absolute; top: 50%; transform: translateY(-50%);
  z-index: 3;
  width: 34px; height: 44px;
  display: grid; place-items: center;
  font-size: 16px; line-height: 1;
  color: var(--c-cyan); cursor: pointer;
  border: 1px solid var(--c-line-strong);
  background: rgba(4, 10, 18, 0.62);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  clip-path: polygon(7px 0, 100% 0, 100% calc(100% - 7px), calc(100% - 7px) 100%, 0 100%, 0 7px);
  transition: background 0.25s, color 0.25s, box-shadow 0.25s;
}
.demo-arrow:hover {
  background: rgba(62, 224, 255, 0.16); color: var(--c-white);
  box-shadow: 0 0 16px rgba(62, 224, 255, 0.35);
}
.demo-arrow-prev { left: 8px; }
.demo-arrow-next { right: 8px; }
.demo-tabs { display: flex; gap: 8px; }
.demo-tab {
  flex: 1;
  display: flex; align-items: center; justify-content: center; gap: 7px;
  padding: 9px 6px;
  font-family: var(--font-main); font-size: 13px; letter-spacing: 0.06em;
  color: var(--c-text-dim); cursor: pointer;
  border: 1px solid var(--c-line);
  background: rgba(62, 224, 255, 0.03);
  clip-path: polygon(7px 0, 100% 0, 100% calc(100% - 7px), calc(100% - 7px) 100%, 0 100%, 0 7px);
  transition: color 0.25s, border-color 0.25s, background 0.25s;
}
.demo-tab .tab-num {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--c-orange); opacity: 0.75; letter-spacing: 0.1em;
}
.demo-tab:hover { color: var(--c-text); border-color: var(--c-line-strong); }
.demo-tab.is-active {
  color: var(--c-white); border-color: var(--c-line-strong);
  background: rgba(62, 224, 255, 0.12);
  box-shadow: 0 0 14px rgba(62, 224, 255, 0.14) inset;
}
.demo-tab.is-active .tab-num { opacity: 1; }

.demo-output {
  border: 1px solid var(--c-line); background: rgba(5, 10, 20, 0.82);
  display: flex; flex-direction: column; overflow: hidden;
}
.demo-output-head {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px; font-family: var(--font-mono); font-size: 12px;
  letter-spacing: 0.12em; color: var(--c-cyan);
  border-bottom: 1px solid var(--c-line);
  background: rgba(62, 224, 255, 0.05);
}
.dot-live {
  width: 8px; height: 8px; border-radius: 50%; background: #35e07c;
  box-shadow: 0 0 8px #35e07c;
  animation: rec-blink 1.6s steps(1) infinite;
}
/* 绝对定位承载 JSON,输出列不参与行高计算,内容过高时内部滚动 */
.demo-output-body { flex: 1; position: relative; min-height: 280px; }
.demo-code {
  display: none;
  margin: 0; padding: 16px 18px;
  font-family: var(--font-mono); font-size: 12.5px; line-height: 1.6;
  color: var(--c-text-dim); white-space: pre-wrap; word-break: break-all;
}
.demo-code.is-active {
  display: block;
  position: absolute; inset: 0;
  overflow-y: auto;
  scrollbar-width: thin; scrollbar-color: rgba(62, 224, 255, 0.3) transparent;
}
.demo-code::-webkit-scrollbar { width: 6px; }
.demo-code::-webkit-scrollbar-thumb { background: rgba(62, 224, 255, 0.25); border-radius: 3px; }
.demo-code::-webkit-scrollbar-track { background: transparent; }
.demo-code .code-line { display: block; }
.demo-code .ck { font-style: normal; color: #7ab8d9; }
.demo-code .cv { font-style: normal; color: #9ee8ff; }
.demo-code .cr { font-style: normal; color: #ff7a6b; font-weight: 700; }
.demo-code .cn { font-style: normal; color: var(--c-orange); }
.code-cursor {
  display: inline-block; width: 7px; height: 13px; margin-left: 3px;
  background: var(--c-cyan); vertical-align: -2px;
  animation: rec-blink 1s steps(1) infinite;
}

.agent-flow { position: relative; margin-bottom: clamp(44px, 6vw, 72px); }
.flow-svg { position: absolute; left: 0; right: 0; top: 42px; width: 100%; height: 40px; }
.flow-path { fill: none; stroke-width: 2; }
.flow-path-bg { stroke: rgba(62, 224, 255, 0.12); }
.flow-path-glow {
  stroke: var(--c-cyan);
  stroke-dasharray: 90 860;
  filter: drop-shadow(0 0 6px var(--c-cyan));
  animation: flow 4s linear infinite;
}
@keyframes flow { to { stroke-dashoffset: -950; } }

.flow-nodes {
  position: relative; display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px;
}
.flow-node {
  text-align: center; padding: 22px 10px 18px;
  border: 1px solid var(--c-line); background: var(--c-panel);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  display: flex; flex-direction: column; gap: 4px;
}
.flow-node-icon { font-size: 22px; color: var(--c-cyan); line-height: 1; margin-bottom: 8px; }
.flow-node strong { color: var(--c-white); font-size: 14px; }
.flow-node span { font-size: 12px; color: var(--c-text-dim); }
.flow-node-core {
  border-color: rgba(255, 138, 42, 0.55);
  box-shadow: 0 0 28px rgba(255, 138, 42, 0.12) inset, 0 0 18px rgba(255, 138, 42, 0.1);
}
.flow-node-core .flow-node-icon { color: var(--c-orange); }

.agent-points { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.agent-point {
  padding: 28px 26px; border: 1px solid var(--c-line);
  background: linear-gradient(160deg, rgba(62, 224, 255, 0.05), transparent 55%);
  transition: border-color 0.3s, transform 0.3s;
}
.agent-point:hover { border-color: var(--c-line-strong); transform: translateY(-3px); }
.agent-point h4 {
  color: var(--c-white); font-size: 18px; margin-bottom: 10px;
  padding-left: 14px; position: relative;
}
.agent-point h4::before {
  content: ""; position: absolute; left: 0; top: 5px; bottom: 5px; width: 3px;
  background: var(--c-cyan); box-shadow: 0 0 8px var(--c-cyan);
}
.agent-point p { font-size: 14px; color: var(--c-text-dim); }

/* ---------- 5. 部署形态 ---------- */
.deploy-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px;
  margin-bottom: 26px;
}
.deploy-card {
  position: relative; padding: 36px 32px;
  border: 1px solid var(--c-line); background: var(--c-panel);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  overflow: hidden;
}
.deploy-card::after {
  content: ""; position: absolute; top: 0; right: 0;
  width: 120px; height: 120px;
  background: radial-gradient(circle at top right, rgba(62, 224, 255, 0.14), transparent 70%);
}
.deploy-card-tag {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.3em;
  color: var(--c-orange); margin-bottom: 14px;
}
.deploy-vis {
  display: block; width: min(420px, 100%); height: auto;
  margin-bottom: 18px;
  stroke: rgba(62, 224, 255, 0.85); fill: none;
  stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
}
.deploy-vis .fov {
  fill: rgba(62, 224, 255, 0.06); stroke: none;
  animation: fov-breath 4.5s ease-in-out infinite;
}
.deploy-vis .fov-edge {
  stroke: rgba(62, 224, 255, 0.3); stroke-width: 1;
  stroke-dasharray: 4 6;
}
@keyframes fov-breath {
  0%, 100% { fill-opacity: 0.5; }
  50% { fill-opacity: 1; }
}
.deploy-vis .cable {
  stroke: var(--c-cyan); stroke-width: 2;
  stroke-dasharray: 10 12;
  animation: cable-flow 1.6s linear infinite;
  filter: drop-shadow(0 0 4px rgba(62, 224, 255, 0.5));
}
@keyframes cable-flow { to { stroke-dashoffset: -44; } }
.deploy-vis .wifi path { stroke: var(--c-cyan); opacity: 0.25; }
.deploy-vis .wifi .w1 { animation: wifi-pulse 2.1s ease-out infinite; }
.deploy-vis .wifi .w2 { animation: wifi-pulse 2.1s ease-out 0.35s infinite; }
.deploy-vis .wifi .w3 { animation: wifi-pulse 2.1s ease-out 0.7s infinite; }
@keyframes wifi-pulse {
  0% { opacity: 0.15; }
  30% { opacity: 1; }
  70% { opacity: 0.15; }
  100% { opacity: 0.15; }
}
.deploy-card h3 { color: var(--c-white); font-size: 24px; margin-bottom: 12px; }
.deploy-card > p { font-size: 14px; color: var(--c-text-dim); margin-bottom: 20px; }
.deploy-card ul li {
  font-size: 14px; color: var(--c-text);
  padding: 8px 0 8px 24px; position: relative;
  border-top: 1px dashed rgba(126, 148, 173, 0.16);
}
.deploy-card ul li::before {
  content: "◆"; position: absolute; left: 2px; font-size: 9px; color: var(--c-cyan); top: 12px;
}

.deploy-comm {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px;
  padding: 26px; border: 1px solid var(--c-line);
  background: linear-gradient(90deg, rgba(62, 224, 255, 0.05), transparent, rgba(255, 138, 42, 0.05));
}
.comm-item { display: flex; gap: 14px; align-items: flex-start; }
.comm-icon {
  flex: none; width: 42px; height: 42px; display: grid; place-items: center;
  font-size: 20px; color: var(--c-cyan);
  border: 1px solid var(--c-line-strong);
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
}
.comm-item strong { display: block; color: var(--c-white); font-size: 15px; }
.comm-item span { font-size: 13px; color: var(--c-text-dim); }

/* ---------- 6. 场景矩阵 ---------- */
.scene-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.scene-card {
  position: relative; padding: 30px 26px;
  border: 1px solid var(--c-line); background: var(--c-panel);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}
.scene-card:hover {
  border-color: var(--c-line-strong); transform: translateY(-4px);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.5), 0 0 22px rgba(62, 224, 255, 0.08);
}
.scene-num {
  font-family: var(--font-mono); font-size: 12px; color: var(--c-orange);
  letter-spacing: 0.2em; display: block; margin-bottom: 14px;
}
.scene-icon {
  display: block; width: 46px; height: 46px; margin-bottom: 16px;
  stroke: var(--c-cyan); fill: none;
  stroke-width: 2; stroke-linecap: round; stroke-linejoin: round;
  filter: drop-shadow(0 0 6px rgba(62, 224, 255, 0.25));
  transition: filter 0.3s, transform 0.3s;
}
.scene-card:hover .scene-icon {
  filter: drop-shadow(0 0 14px rgba(62, 224, 255, 0.6));
  transform: scale(1.08);
}
.scene-card h3 { color: var(--c-white); font-size: 20px; margin-bottom: 10px; }
.scene-card p { font-size: 14px; color: var(--c-text-dim); }

/* ---------- 7. 规格 ---------- */
.specs-panel {
  position: relative; padding: clamp(24px, 4vw, 48px);
  border: 1px solid var(--c-line); background: var(--c-panel);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.specs-corner { position: absolute; width: 22px; height: 22px; border: 2px solid var(--c-cyan); }
.specs-corner.tl { top: -2px; left: -2px; border-right: none; border-bottom: none; }
.specs-corner.tr { top: -2px; right: -2px; border-left: none; border-bottom: none; }
.specs-corner.bl { bottom: -2px; left: -2px; border-right: none; border-top: none; }
.specs-corner.br { bottom: -2px; right: -2px; border-left: none; border-top: none; }
.specs-scan {
  position: absolute; left: 0; right: 0; top: 0; height: 2px;
  background: linear-gradient(90deg, transparent, rgba(62, 224, 255, 0.55), transparent);
  filter: drop-shadow(0 0 6px rgba(62, 224, 255, 0.6));
  animation: specs-scan 5s ease-in-out infinite;
  pointer-events: none;
}
@keyframes specs-scan {
  0% { top: 2%; opacity: 0; }
  10% { opacity: 0.9; }
  90% { opacity: 0.9; }
  100% { top: 97%; opacity: 0; }
}

.specs-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  column-gap: 44px;
}
.spec-item {
  display: flex; align-items: baseline; gap: 14px;
  padding: 12px 0; border-bottom: 1px dashed rgba(126, 148, 173, 0.18);
}
.spec-item:last-child { border-bottom: none; }
.specs-grid .spec-item:nth-child(odd) { border-right: 1px dashed rgba(126, 148, 173, 0.12); padding-right: 22px; }
.specs-grid .spec-item:nth-child(even) { padding-left: 22px; }
.spec-key {
  flex: 0 0 auto; white-space: nowrap;
  font-family: var(--font-mono); font-size: 13px; font-weight: 600;
  color: var(--c-cyan); letter-spacing: 0.08em;
}
.spec-val { font-size: 13.5px; line-height: 1.5; color: var(--c-text); }
.spec-val sup { color: var(--c-orange); }
.specs-note { margin-top: 18px; font-size: 12px; color: var(--c-text-dim); }
.specs-note sup { color: var(--c-orange); }

/* ---------- 8. CTA ---------- */
.cta {
  position: relative; text-align: center;
  padding: clamp(90px, 13vw, 170px) 24px 0;
  background:
    radial-gradient(ellipse 70% 55% at 50% 30%, rgba(18, 130, 178, 0.2), transparent 70%);
}
.cta-inner { max-width: 860px; margin: 0 auto; }
.cta-title {
  font-size: clamp(32px, 5.4vw, 58px); font-weight: 800; color: var(--c-white);
  margin-bottom: 18px; letter-spacing: 0.03em;
  text-shadow: 0 0 60px rgba(62, 224, 255, 0.35);
}
.cta-desc { color: var(--c-text-dim); font-size: clamp(15px, 1.8vw, 18px); margin-bottom: 46px; }

.cta-contacts {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px;
  max-width: 640px; margin: 0 auto 48px;
}
.cta-contact {
  padding: 26px 18px; border: 1px solid var(--c-line);
  background: var(--c-panel);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.cta-contact-label { font-size: 12px; color: var(--c-text-dim); letter-spacing: 0.25em; }
.cta-contact-value {
  font-family: var(--font-mono); font-size: 19px; color: var(--c-cyan); font-weight: 700;
}
.qr-img {
  width: 128px; height: 128px; display: block;
  border: 1px solid var(--c-line-strong); border-radius: 6px;
  background: #fff;
}

.footer { margin-top: clamp(70px, 9vw, 120px); border-top: 1px solid var(--c-line); }
.footer-inner {
  max-width: 1280px; margin: 0 auto; padding: 30px 24px;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px;
  font-size: 13px; color: var(--c-text-dim);
}
.footer-dim { opacity: 0.6; width: 100%; text-align: center; margin-top: 8px; font-size: 12px; }

/* ---------- 动画初始态(仅在 JS 启用后生效) ---------- */
html.js-anim .reveal-line,
html.js-anim [data-stagger],
html.js-anim [data-slide] { opacity: 0; }
html.js-anim [data-hud] { opacity: 0; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .nav-links { display: none; }
  .side-nav { display: none; }
  .agent-demo { grid-template-columns: 1fr; }
  .bundle-grid { grid-template-columns: 1fr; }
  .bundle-connector { flex-direction: row; height: 64px; }
  .connector-line { width: auto; height: 1px; flex: 1; background: linear-gradient(90deg, transparent, var(--c-line-strong), transparent); }
  .flow-nodes { grid-template-columns: repeat(2, 1fr); }
  .flow-svg { display: none; }
  .scene-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 820px) {
  .br-m { display: inline; }
  .hero { padding-top: calc(var(--nav-h) + 16px); }
  .hero-inner { grid-template-columns: 1fr; gap: 20px; }
  .hero-copy { order: 2; text-align: center; }
  .hero-sub { margin-left: auto; margin-right: auto; }
  .hero-badges, .hero-actions { justify-content: center; }
  .hero-stage { order: 1; min-height: 320px; }
  .hero-product { width: clamp(170px, 42vw, 240px); }
  .ring.r1 { width: 260px; height: 260px; }
  .ring.r2 { width: 340px; height: 340px; }
  .ring.r3 { width: 420px; height: 420px; }
  /* 移动端 HUD 标注收纳为角标 */
  .hud-label em { display: none; }
  .hud-line { width: 22px; }
  .hc-lens { margin-right: 84px; }
  .hc-ptz { margin-left: 84px; }
  .hc-ir { margin-right: 78px; }
  .hc-base { margin-left: 72px; }
  .policy-quotes { grid-template-columns: 1fr; }
  .policy-stats { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .stat-dial { width: 104px; height: 104px; }
  .demo-code { font-size: 11.5px; }
  .agent-points { grid-template-columns: 1fr; }
  .deploy-grid { grid-template-columns: 1fr; }
  .deploy-comm { grid-template-columns: 1fr; }
  .cta-contacts { grid-template-columns: 1fr; }
  .specs-grid { grid-template-columns: 1fr; }
  .specs-grid .spec-item:nth-child(odd) { border-right: none; padding-right: 0; }
  .specs-grid .spec-item:nth-child(even) { padding-left: 0; }
  .spec-key { flex: 0 0 84px; white-space: normal; }
  .scanline { display: none; }
  /* 移动端关闭氛围层内部动效,保留静态渐变与交叉切换 */
  .ambient-layer::after { animation: none !important; }
}

@media (max-width: 560px) {
  .scene-grid { grid-template-columns: 1fr; }
  .flow-nodes { grid-template-columns: 1fr; }
  .pack-grid { grid-template-columns: 1fr; }
  .logo-cn { display: none; }
  .hud-callout { font-size: 11px; }
  .hud-label { padding: 5px 8px; }
  .hc-lens { margin-right: 64px; }
  .hc-ptz { margin-left: 64px; }
  .hc-ir { margin-right: 58px; }
  .hc-base { margin-left: 52px; }
}

/* ---------- 无障碍降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .scanline, .ring, .flow-path-glow, .scroll-hint-arrow, .ambient-layer::after,
  .connector-line::after, .deploy-vis .cable, .deploy-vis .wifi path, .deploy-vis .fov,
  .specs-scan, .demo-scan, .demo-rec, .dot-live, .code-cursor { animation: none !important; }
  .stat-ring-fg { stroke-dashoffset: 65 !important; }
  html.js-anim .reveal-line,
  html.js-anim [data-stagger],
  html.js-anim [data-slide],
  html.js-anim [data-hud] { opacity: 1 !important; transform: none !important; }
}

/* ---------- 安全认证 ---------- */
.certifications .section-head { max-width: none; text-align: center; }
.certification-grid {
  display: grid; grid-template-columns: repeat(5, minmax(0, 1fr));
  border: 1px solid var(--c-line); border-radius: 16px;
  background: var(--c-panel); padding: 48px 20px; gap: 24px;
}
.certification-item { display: flex; flex-direction: column; align-items: center; gap: 24px; text-align: center; }
.certification-item p { font-size: 14px; color: var(--c-text); }
.certification-emblem {
  width: 88px; height: 88px; border: 1px solid var(--c-line-strong); border-radius: 50%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  color: var(--c-cyan); background: rgba(62, 224, 255, 0.04);
  box-shadow: 0 0 24px rgba(62, 224, 255, 0.06); font-family: var(--font-mono);
}
.certification-emblem span { font-size: 24px; font-weight: 700; line-height: 1.3; }
.certification-emblem strong { font-size: 13px; letter-spacing: 1px; }
.certification-shield { border: 0; border-radius: 0; background: none; box-shadow: none; }
.certification-shield svg { width: 64px; height: 72px; }
@media (max-width: 820px) {
  .certification-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 32px 16px; padding: 32px 16px; }
}
@media (max-width: 560px) {
  .certification-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .certification-item:last-child { grid-column: 1 / -1; }
}