@charset "UTF-8";
/* ==========================================================================
   沃克班迪智能科技 · 官网设计系统
   配色取自 LOGO：凤凰金 (#FF8A2B→#E8341C) + 深空蓝 (#070B18→#0E1730)
   ========================================================================== */

:root {
  /* 品牌色 —— 取自 LOGO 凤凰渐变 */
  --brand-1: #FF8A2B;
  --brand-2: #F0531F;
  --brand-3: #E8341C;
  --gold: #FFC24B;
  --gold-soft: #FFD98A;

  /* 深空背景 */
  --bg-0: #05080F;
  --bg-1: #0A1020;
  --bg-2: #0E1730;
  --bg-3: #142038;

  /* 玻璃面板 */
  --glass: rgba(255, 255, 255, .04);
  --glass-2: rgba(255, 255, 255, .07);
  --stroke: rgba(255, 255, 255, .10);
  --stroke-2: rgba(255, 255, 255, .18);

  /* 文字 */
  --txt-1: #F2F6FF;
  --txt-2: #AEBBD4;
  --txt-3: #74839E;

  /* 语义色 */
  --ok: #2ED47A;
  --warn: #FFB020;
  --err: #FF5B5B;
  --info: #4A9DFF;

  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --r-xl: 32px;

  --shadow-1: 0 8px 32px rgba(0, 0, 0, .36);
  --shadow-2: 0 20px 60px rgba(0, 0, 0, .5);
  --glow-gold: 0 0 42px rgba(255, 160, 60, .34);

  --maxw: 1240px;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
  background: var(--bg-0);
  color: var(--txt-1);
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }

/* 自定义滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-0); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--brand-1), var(--brand-3));
  border-radius: 6px;
  border: 2px solid var(--bg-0);
}

/* ========================= 通用容器 ========================= */
.wrap {
  width: min(100% - 40px, var(--maxw));
  margin-inline: auto;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--gold);
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: linear-gradient(90deg, var(--brand-1), var(--gold));
  border-radius: 2px;
}

h2.sec-title {
  font-size: clamp(26px, 4.2vw, 42px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -.02em;
  margin: 14px 0 16px;
}
h2.sec-title em {
  font-style: normal;
  background: linear-gradient(100deg, var(--brand-1), var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sec-desc {
  color: var(--txt-2);
  font-size: clamp(14px, 1.5vw, 17px);
  max-width: 760px;
}

section { position: relative; padding: clamp(64px, 9vw, 120px) 0; }

/* ========================= 导航 ========================= */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 900;
  height: 68px;
  display: flex;
  align-items: center;
  transition: background .4s var(--ease), border-color .4s, backdrop-filter .4s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(6, 10, 20, .82);
  backdrop-filter: blur(18px) saturate(160%);
  border-bottom-color: var(--stroke);
}
.nav-inner {
  width: min(100% - 40px, var(--maxw));
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.nav-brand img { width: 38px; height: 38px; object-fit: contain; }
.nav-brand b { font-size: 17px; font-weight: 800; letter-spacing: .01em; }
.nav-brand span {
  display: block;
  font-size: 10.5px;
  font-weight: 500;
  color: var(--txt-3);
  letter-spacing: .14em;
  line-height: 1.2;
  margin-top: 1px;
}
.nav-links { display: flex; gap: 30px; margin-left: auto; }
.nav-links a {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--txt-2);
  position: relative;
  padding: 6px 0;
  transition: color .25s;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%; bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--brand-1), var(--gold));
  transition: right .32s var(--ease);
}
.nav-links a:hover { color: var(--txt-1); }
.nav-links a:hover::after { right: 0; }

.nav-cta {
  padding: 9px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(100deg, var(--brand-3), var(--brand-1));
  box-shadow: 0 6px 22px rgba(240, 83, 31, .38);
  transition: transform .25s var(--ease), box-shadow .25s;
  white-space: nowrap;
}
.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(240, 83, 31, .5); }

.nav-burger { display: none; width: 40px; height: 40px; margin-left: auto; position: relative; }
.nav-burger span {
  position: absolute;
  left: 9px;
  width: 22px;
  height: 2px;
  background: var(--txt-1);
  border-radius: 2px;
  transition: .3s var(--ease);
}
.nav-burger span:nth-child(1) { top: 13px; }
.nav-burger span:nth-child(2) { top: 19px; }
.nav-burger span:nth-child(3) { top: 25px; }
.nav-burger.on span:nth-child(1) { top: 19px; transform: rotate(45deg); }
.nav-burger.on span:nth-child(2) { opacity: 0; }
.nav-burger.on span:nth-child(3) { top: 19px; transform: rotate(-45deg); }

/* ========================= 按钮 ========================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 14px 30px;
  border-radius: 999px;
  font-size: 15.5px;
  font-weight: 600;
  transition: transform .28s var(--ease), box-shadow .28s, background .28s, border-color .28s;
  white-space: nowrap;
}
.btn-primary {
  color: #fff;
  background: linear-gradient(100deg, var(--brand-3), var(--brand-1));
  box-shadow: 0 10px 32px rgba(240, 83, 31, .4);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 16px 44px rgba(240, 83, 31, .55); }
.btn-ghost {
  color: var(--txt-1);
  border: 1.5px solid var(--stroke-2);
  background: var(--glass);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover { border-color: var(--gold); background: rgba(255, 194, 75, .1); transform: translateY(-3px); }

/* ========================= 首屏：城市夜景 + 左右分栏（v11 版式） ========================= */
.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: clamp(84px, 10vh, 110px) 0 clamp(40px, 6vh, 70px);
}

/* ---------- 城市夜景（三层视差 + 提亮底色） ---------- */
.city { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.city-sky {
  position: absolute; inset: 0;
  background:
    radial-gradient(120% 72% at 50% 6%, rgba(255, 168, 78, .26) 0%, transparent 56%),
    radial-gradient(86% 56% at 76% 20%, rgba(255, 84, 40, .18) 0%, transparent 60%),
    radial-gradient(70% 48% at 22% 26%, rgba(90, 150, 255, .12) 0%, transparent 62%),
    linear-gradient(180deg, #16244A 0%, #101C3C 40%, #0C1530 68%, #080E1E 100%);
}
.city-far, .city-mid, .city-near {
  position: absolute;
  left: 0; right: 0;
  bottom: 0;
  background-repeat: repeat-x;
  background-size: auto 100%;
  will-change: transform;
}
.city-far {
  height: 21vh;
  opacity: .88;
  background-image: url("../img/city_far.svg");
  animation: driftFar 90s linear infinite;
}
.city-mid {
  height: 15vh;
  opacity: .94;
  background-image: url("../img/city_mid.svg");
  animation: driftMid 55s linear infinite;
}
.city-near {
  height: 9.5vh;
  background-image: url("../img/city_near.svg");
  animation: driftNear 32s linear infinite;
}
@keyframes driftFar  { from { background-position-x: 0; } to { background-position-x: -2400px; } }
@keyframes driftMid  { from { background-position-x: 0; } to { background-position-x: -2400px; } }
@keyframes driftNear { from { background-position-x: 0; } to { background-position-x: -2400px; } }

/* 星点 */
.stars { position: absolute; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.star {
  position: absolute;
  width: 2px; height: 2px;
  border-radius: 50%;
  background: #fff;
  opacity: .5;
  animation: twinkle var(--dur, 4s) ease-in-out infinite alternate;
}
@keyframes twinkle { from { opacity: .12; transform: scale(.7); } to { opacity: .85; transform: scale(1.25); } }

/* 地面光晕 */
.city-glow {
  position: absolute;
  left: 50%; bottom: 4%;
  width: min(1200px, 94vw);
  height: 260px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(255, 156, 64, .34), transparent 68%);
  filter: blur(42px);
  z-index: 2;
  pointer-events: none;
}

/* ---------- 城市激光灯 ---------- */
.lasers {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  overflow: hidden;
  isolation: isolate;
}
.laser {
  position: absolute;
  bottom: 2%;
  width: 210px;
  height: 96vh;
  transform-origin: 50% 100%;
  opacity: 0;
  background:
    linear-gradient(to top,
      var(--lc, #ff5a28) 0%,
      color-mix(in srgb, var(--lc, #ff5a28) 58%, transparent) 40%,
      transparent 92%),
    linear-gradient(to right,
      transparent 0%,
      var(--lc, #ff5a28) 50%,
      transparent 100%);
  -webkit-mask-image:
    radial-gradient(ellipse 42% 100% at 50% 100%, #000 0%, rgba(0,0,0,.6) 48%, transparent 80%),
    linear-gradient(to top, #000 0%, transparent 94%);
  -webkit-mask-composite: source-in;
  mask-image:
    radial-gradient(ellipse 42% 100% at 50% 100%, #000 0%, rgba(0,0,0,.6) 48%, transparent 80%),
    linear-gradient(to top, #000 0%, transparent 94%);
  mask-composite: intersect;
  mix-blend-mode: screen;
  transform: rotate(var(--tilt, 0deg));       /* 左右下方向中间交叉照射 */
  transform-origin: bottom center;
  animation: laserSweep var(--dur, 9s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
}
@keyframes laserSweep {
  0%   { opacity: 0; }
  5%   { opacity: calc(var(--lo, .4) * .3); }   /* ×.3 再降亮度：隐约可见 */
  22%  { opacity: calc(var(--lo, .4) * .3); }
  32%  { opacity: 0; }
  100% { opacity: 0; }
}
.laser-dot {
  position: absolute;
  left: 50%; top: 38%;
  width: 320px; height: 320px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(circle,
      var(--lc, rgba(255, 120, 60, .55)) 0%,
      color-mix(in srgb, var(--lc, #ff783c) 30%, transparent) 38%,
      transparent 70%);
  mix-blend-mode: screen;
  opacity: 0;
  z-index: 4;
  pointer-events: none;
  animation: laserDot var(--dur, 9s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
}
@keyframes laserDot {
  0%   { opacity: 0; }
  5%   { opacity: .3; }
  22%  { opacity: .3; }
  32%  { opacity: 0; }
  100% { opacity: 0; }
}
/* ---------- 主体容器 ---------- */
.hero-main {
  position: relative;
  z-index: 5;
  width: 100%;
  height: 100%;
  min-height: clamp(460px, 62vh, 640px);
}

/* ---------- 完整 LOGO ----------
   ★ 直接使用老左给的「沃克班迪LOGO.png」完整原图，不做任何拆分/拼接。
   动画：延迟 0.5s，从「方块位置」慢慢左移约 350px，终点定格在方块左侧可见。
   初始 opacity:0 + 位于方块之下 ⇒ 前 0.5s 完全看不见，方块独享画面。 */
.logo-stage {
  position: absolute;
  left: 56%;                    /* 与方块同位置，藏在方块后面 */
  /* ★ 垂直居中改用布局层（top/bottom:0 + margin:auto），不再用 transform:translateY(-50%)：
     图片慢加载时元素高度还是 0，-50% 解析为 0 并被动画填充帧冻结 ⇒ LOGO 从首屏中线
     「耄拉」偏下，刷新命中缓存才正常（2026-10-18 实测复现）。布局层居中与图片解码无关 */
  top: 0; bottom: 0;
  margin: auto;
  z-index: 10;                   /* 高于 hero-main(5)，确保 LOGO 可见 */
  width: min(370px, 24vw, 43vh);
  height: calc(min(370px, 24vw, 43vh) * 875 / 720);   /* 按 logo_full_anim.png(720×875) 预留盒高 */
  pointer-events: auto;
  opacity: 0;
  animation: stageMove 6s var(--ease) 0.5s forwards;
}

/* LOGO 悬停光晕效果 */
.logo-stage:hover .stage-logo-full {
  filter: drop-shadow(0 0 30px rgba(255, 140, 0, 0.9))
          drop-shadow(0 0 60px rgba(255, 100, 0, 0.6))
          drop-shadow(0 0 90px rgba(255, 60, 0, 0.4));
  transition: filter 0.4s ease;
}

.logo-stage:hover .stage-beam {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1.2);
  transition: all 0.4s ease;
}

.stage-logo-full {
  display: block;
  width: 100%;
  height: auto;
  filter: drop-shadow(0 18px 44px rgba(255, 110, 30, .34));
}
/* 舞台随 LOGO 一起移动（★ 只动 X 轴：垂直居中已由 .logo-stage 布局层（margin:auto）负责。
   旧的 translateY(-50%) 百分比按元素自身高度解析，图片解码前高度为 0 ⇒ 回移量丢失、
   被动画冻结后 LOGO 永久偏下——这正是「刷新又好」的根因，故整个 Y 向位移已移除） */
@keyframes stageMove {
  0% {
    /* 起点：与方块同位置，藏在方块后面（X 的 -50% 按明确宽度解析，无时序风险） */
    transform: translateX(-50%) scale(.92);
    opacity: 0;
  }
  10% { opacity: .15; }
  25% { opacity: .45; }
  50% { opacity: .75; }
  75% { opacity: .92; }
  100% {
    /* 终点：向左移出约 650px，完全离开方块覆盖区域 */
    transform: translateX(calc(-50% - 650px)) scale(1);
    opacity: 1;
  }
}

/* 舞台背光 */
.stage-beam {
  position: absolute;
  width: 92%;
  height: 44%;
  top: 34%; left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(ellipse at center, rgba(255, 168, 74, .3), transparent 66%);
  filter: blur(34px);
  z-index: -1;
  opacity: 0;
  animation: beamIn 1.4s var(--ease) 5.4s forwards;
}
@keyframes beamIn { to { opacity: 1; } }

/* 手机端 LOGO 开场：揭幕式——文案卡片先盖在 LOGO 上（z-index 11 > LOGO），
   延迟后向下滑动回位，LOGO 慢慢露出。LOGO 本身不动（静态兜底 opacity 1） */
@keyframes cardSlideDown {
  from { transform: translateY(-260px); }   /* 上移盖住 LOGO（LOGO 高约 230px + 间距） */
  to   { transform: none; }
}

/* 落位光波 */
.shockwave {
  position: absolute;
  width: 46%; aspect-ratio: 1;
  top: 40%; left: 50%;
  border-radius: 50%;
  border: 2px solid rgba(255, 205, 120, .9);
  z-index: 1;
  transform: translate(-50%, -50%) scale(.2);
  opacity: 0;
  pointer-events: none;
  animation: shock 1.5s var(--ease) 7.6s forwards;
}
@keyframes shock {
  0%   { opacity: .9; transform: translate(-50%, -50%) scale(.2); border-width: 3px; }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(4); border-width: .5px; }
}

/* ---------- 文案方块：绝对居中 ---------- */
.hero-copy {
  position: absolute;
  /* 绝对居中于「右侧可用区」：屏幕中线略偏右，给左侧 LOGO 让位 */
  left: 56%;
  top: 50%;
  z-index: 11;                       /* 高于 LOGO(10)，但 LOGO 动画会移出覆盖区 */
  width: min(820px, 50vw);
  transform: translate(-50%, -50%);
  padding: clamp(38px, 4.4vw, 64px) clamp(32px, 3.8vw, 58px);
  text-align: center;
  border-radius: clamp(22px, 2vw, 30px);
  background:
    linear-gradient(155deg, rgba(30, 40, 72, .62) 0%, rgba(12, 18, 38, .72) 58%, rgba(8, 12, 26, .8) 100%);
  border: 1px solid rgba(255, 255, 255, .12);
  backdrop-filter: blur(20px) saturate(150%);
  box-shadow:
    0 26px 70px rgba(0, 0, 0, .55),
    inset 0 1px 0 rgba(255, 255, 255, .14),
    inset 0 30px 60px rgba(60, 90, 160, .1);
  opacity: 0;
  animation: cardIn .8s var(--ease) .5s forwards;
  transition: border-color .5s var(--ease), box-shadow .5s var(--ease);
  isolation: isolate;
}
@keyframes cardIn {
  from { opacity: 0; transform: translate(-50%, -46%) scale(.97); }
  to   { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}
/* 常态轻微呼吸 + 光效脉动 */
@keyframes cardBreathe {
  0%, 100% {
    box-shadow:
      0 26px 70px rgba(0, 0, 0, .55),
      0 0 24px rgba(255, 160, 55, .22),
      inset 0 1px 0 rgba(255, 255, 255, .14),
      inset 0 30px 60px rgba(60, 90, 160, .1);
  }
  50% {
    box-shadow:
      0 34px 84px rgba(0, 0, 0, .6),
      0 0 46px rgba(255, 170, 60, .42),
      inset 0 1px 0 rgba(255, 236, 190, .2),
      inset 0 30px 60px rgba(70, 100, 180, .14);
  }
}

/* 外围光晕（常态微微呼吸） */
.card-aura {
  position: absolute;
  inset: -14px;
  border-radius: inherit;
  background: conic-gradient(from 0deg,
      rgba(255, 168, 60, .5), rgba(255, 90, 40, .28),
      rgba(120, 170, 255, .34), rgba(190, 120, 255, .3),
      rgba(255, 205, 120, .44), rgba(255, 168, 60, .5));
  filter: blur(26px);
  opacity: .4;
  z-index: -1;
  animation: auraBreath 4.5s ease-in-out infinite;
  transition: opacity .5s var(--ease);
  pointer-events: none;
}
@keyframes auraBreath {
  0%, 100% { opacity: .3; }
  50%      { opacity: .68; }
}

/* 四边流光（常态缓行，悬停加速） */
.card-beam {
  position: absolute;
  z-index: -1;
  pointer-events: none;
  opacity: .55;
  transition: opacity .5s var(--ease);
}
.card-beam-t, .card-beam-b {
  left: 8%; right: 8%;
  height: 2px;
  background: linear-gradient(90deg, transparent, #FFD98A, #FF8A2B, #FFD98A, transparent);
  background-size: 220% 100%;
}
.card-beam-l, .card-beam-r {
  top: 8%; bottom: 8%;
  width: 2px;
  background: linear-gradient(180deg, transparent, #FFD98A, #FF8A2B, #FFD98A, transparent);
  background-size: 100% 220%;
}
.card-beam-t { top: -1px; animation: beamRunH 5s linear infinite; }
.card-beam-b { bottom: -1px; animation: beamRunH 5s linear infinite reverse; }
.card-beam-l { left: -1px; animation: beamRunV 6s linear infinite; }
.card-beam-r { right: -1px; animation: beamRunV 6s linear infinite reverse; }
@keyframes beamRunH {
  0%   { background-position: 200% 0; }
  100% { background-position: -120% 0; }
}
@keyframes beamRunV {
  0%   { background-position: 0 200%; }
  100% { background-position: 0 -120%; }
}

/* 四角光点 */
.card-corner {
  position: absolute;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: #FFE3AC;
  box-shadow: 0 0 12px 2px rgba(255, 190, 100, .9);
  opacity: .6;
  z-index: 2;
  transition: opacity .45s, transform .45s var(--ease), box-shadow .45s;
}
.card-corner.tl { top: -5px; left: -5px; }
.card-corner.tr { top: -5px; right: -5px; }
.card-corner.bl { bottom: -5px; left: -5px; }
.card-corner.br { bottom: -5px; right: -5px; }

/* 内容层 */
.card-inner { position: relative; z-index: 3; }

.hero-title {
  font-size: clamp(28px, 3.6vw, 52px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -.02em;
}
.hero-title span {
  background: linear-gradient(100deg, #FFF 20%, var(--gold) 55%, var(--brand-1) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  margin-top: 18px;
  font-size: clamp(14px, 1.3vw, 17px);
  color: var(--txt-2);
}
.hero-actions {
  margin-top: 30px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
}
.hero-actions .btn { padding: 14px 34px; font-size: 16px; }
.hero-meta {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, .1);
  display: flex;
  gap: 22px;
  justify-content: center;
  flex-wrap: wrap;
  color: var(--txt-3);
  font-size: 12.5px;
}
.hero-meta div { display: flex; align-items: center; gap: 7px; }
.hero-meta b { color: var(--gold); font-weight: 700; }

/* ---------- 悬停：悬浮上浮 + 灯光增强 ---------- */
.hero-copy:hover {
  border-color: rgba(255, 200, 120, .5);
  box-shadow:
    0 40px 90px rgba(0, 0, 0, .65),
    0 0 0 1px rgba(255, 194, 75, .3),
    0 0 60px rgba(255, 160, 55, .34),
    inset 0 1px 0 rgba(255, 236, 190, .28),
    inset 0 34px 70px rgba(80, 110, 190, .16);
}
.hero-copy:hover .card-aura { opacity: .78; animation-duration: 2.4s; }
.hero-copy:hover .card-beam { opacity: 1; animation-duration: 1.8s; }
.hero-copy:hover .card-corner {
  opacity: 1;
  transform: scale(1.5);
  box-shadow: 0 0 20px 4px rgba(255, 200, 120, 1);
}

/* 跳过动画 */
.skip-anim {
  position: fixed;
  right: 22px; bottom: 22px;
  z-index: 950;
  padding: 9px 18px;
  border-radius: 999px;
  font-size: 13px;
  color: var(--txt-2);
  background: rgba(10, 16, 32, .8);
  border: 1px solid var(--stroke);
  backdrop-filter: blur(12px);
  opacity: 0;
  pointer-events: none;
  transition: opacity .4s;
}
.skip-anim.show { opacity: 1; pointer-events: auto; }
.skip-anim:hover { color: var(--gold); border-color: var(--gold); }

.scroll-hint {
  position: absolute;
  left: 50%; bottom: 22px;
  transform: translateX(-50%);
  z-index: 7;
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--txt-3);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  opacity: 0;
  animation: copyIn .8s var(--ease) 6.2s forwards;
}
.scroll-hint i {
  width: 1px; height: 32px;
  background: linear-gradient(180deg, var(--gold), transparent);
  animation: dropLine 1.9s ease-in-out infinite;
}
@keyframes dropLine { 0%,100% { opacity: .3; transform: scaleY(.55); } 50% { opacity: 1; transform: scaleY(1); } }
@keyframes copyIn { from { opacity: 0; } to { opacity: 1; } }

/* ========================= 通用卡片（金色立体悬停） ========================= */
.card {
  background: linear-gradient(160deg, var(--glass-2), var(--glass));
  border: 1px solid var(--stroke);
  border-radius: var(--r-lg);
  backdrop-filter: blur(14px);
  position: relative;
  overflow: hidden;
  transition: transform .45s var(--ease), border-color .45s, box-shadow .45s;
}
/* 顶部高光线 */
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .3), transparent);
}
/* 金色内发光层（悬停时显现） */
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(150deg,
      rgba(255, 214, 130, .95) 0%,
      rgba(255, 160, 60, .5) 34%,
      rgba(255, 120, 40, .16) 62%,
      rgba(255, 200, 110, .55) 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity .45s var(--ease);
  pointer-events: none;
  z-index: 2;
}
.card:hover {
  transform: translateY(-8px);
  border-color: rgba(255, 194, 75, .5);
  /* 外发光 + 内部暖光，营造立体感 */
  box-shadow:
    0 22px 48px rgba(0, 0, 0, .5),
    0 0 0 1px rgba(255, 194, 75, .22),
    0 0 38px rgba(255, 162, 56, .3),
    inset 0 1px 0 rgba(255, 226, 170, .22),
    inset 0 22px 46px rgba(255, 150, 50, .09);
}
.card:hover::after { opacity: 1; }
/* 内容层级高于金边 */
.card > * { position: relative; z-index: 3; }

/* ========================= 产品总览 ========================= */
.prod-grid {
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}
.prod-card { padding: 34px; display: flex; flex-direction: column; }
.prod-icon {
  width: 62px; height: 62px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  font-size: 29px;
  background: linear-gradient(150deg, rgba(255, 186, 96, .22), rgba(232, 52, 28, .1));
  border: 1.5px solid rgba(255, 194, 75, .48);
  box-shadow: inset 0 1px 0 rgba(255, 226, 170, .3), 0 4px 14px rgba(255, 140, 40, .16);
  transition: transform .45s var(--ease), box-shadow .45s, border-color .45s;
  margin-bottom: 22px;
}
.card:hover .prod-icon {
  transform: scale(1.06);
  border-color: rgba(255, 214, 130, .85);
  box-shadow:
    inset 0 1px 0 rgba(255, 236, 190, .45),
    0 8px 26px rgba(255, 150, 46, .34),
    0 0 22px rgba(255, 180, 70, .28);
}
.prod-card h3 { font-size: 23px; font-weight: 800; letter-spacing: -.01em; }
.prod-card .ver {
  display: inline-block;
  margin-left: 9px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--gold);
  padding: 2px 9px;
  border-radius: 6px;
  background: rgba(255, 194, 75, .13);
  border: 1px solid rgba(255, 194, 75, .3);
  vertical-align: middle;
}
.prod-card p { color: var(--txt-2); margin-top: 12px; font-size: 15px; flex: 1; }
.prod-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 20px; }
.prod-tags span {
  font-size: 12.5px;
  padding: 4px 11px;
  border-radius: 999px;
  color: var(--txt-2);
  background: rgba(255, 255, 255, .05);
  border: 1px solid var(--stroke);
}
.prod-link {
  margin-top: 24px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--gold);
  transition: gap .3s var(--ease);
}
.prod-link:hover { gap: 14px; }

/* ---------- 试用清单 ---------- */
.trial-list {
  display: grid;
  gap: 11px;
  margin-top: 22px;
  padding-top: 22px;
  border-top: 1px solid var(--stroke);
}
.trial-list li {
  position: relative;
  padding-left: 26px;
  font-size: 14.2px;
  color: var(--txt-2);
}
.trial-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 8px;
  width: 15px; height: 15px;
  border-radius: 50%;
  background: linear-gradient(140deg, var(--brand-1), var(--brand-3));
}
.trial-list li::after {
  content: "";
  position: absolute;
  left: 4.4px; top: 11.4px;
  width: 6px; height: 3.4px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg);
}
.trial-list li b { color: var(--txt-1); font-weight: 600; }

.trial-note {
  margin-top: 20px;
  padding: 12px 16px;
  border-radius: var(--r-sm);
  font-size: 13px;
  color: var(--txt-3);
  background: rgba(255, 194, 75, .06);
  border: 1px solid rgba(255, 194, 75, .18);
  line-height: 1.7;
}

/* 标题前的标记（纯 CSS 绘制，避免 emoji 缺字体变方框） */
.mark {
  display: inline-block;
  width: 9px; height: 18px;
  margin-right: 11px;
  border-radius: 3px;
  vertical-align: -3px;
  background: linear-gradient(160deg, var(--brand-1), var(--brand-3));
  box-shadow: 0 0 12px rgba(255, 140, 50, .6);
}
.mark-c {
  border-radius: 50%;
  background: linear-gradient(160deg, var(--gold), var(--brand-1));
}

/* ========================= 数据条 ========================= */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px;
  background: var(--stroke);
  border: 1px solid var(--stroke);
  border-radius: var(--r-md);
  overflow: hidden;
}
.stats div {
  background: rgba(10, 16, 32, .7);
  padding: 30px 20px;
  text-align: center;
}
.stats b {
  display: block;
  font-size: clamp(28px, 3.6vw, 40px);
  font-weight: 900;
  background: linear-gradient(100deg, var(--brand-1), var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}
.stats span { font-size: 13.5px; color: var(--txt-3); }

/* ========================= 能力网格 ========================= */
.feat-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}
.feat {
  padding: 28px;
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, .028);
  border: 1px solid var(--stroke);
  position: relative;
  overflow: hidden;
  transition: transform .4s var(--ease), border-color .4s, box-shadow .4s, background .4s;
}
.feat::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(150deg,
      rgba(255, 214, 130, .9) 0%,
      rgba(255, 160, 60, .42) 38%,
      rgba(255, 120, 40, .12) 66%,
      rgba(255, 200, 110, .5) 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity .4s var(--ease);
  pointer-events: none;
}
.feat:hover {
  background: rgba(255, 194, 75, .06);
  border-color: rgba(255, 194, 75, .38);
  transform: translateY(-5px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, .42), 0 0 28px rgba(255, 162, 56, .22),
              inset 0 1px 0 rgba(255, 226, 170, .18);
}
.feat:hover::after { opacity: 1; }
.feat > * { position: relative; z-index: 2; }
.feat .ico { font-size: 26px; margin-bottom: 14px; display: block; }
.feat h4 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.feat p { color: var(--txt-2); font-size: 14.2px; }

/* ========================= 截图展示（金色立体悬停） ========================= */
.shot-frame {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--stroke-2);
  background: var(--bg-2);
  transition: transform .45s var(--ease), border-color .45s, box-shadow .45s;
}
/* 金色渐变描边（::before 留给描边，::after 保留原渐变遮罩） */
.shot-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1.5px;
  background: linear-gradient(150deg,
      rgba(255, 220, 140, .95) 0%,
      rgba(255, 168, 66, .55) 32%,
      rgba(255, 120, 40, .18) 60%,
      rgba(255, 205, 120, .6) 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity .45s var(--ease);
  pointer-events: none;
  z-index: 3;
}
.shot-frame:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 194, 75, .5);
  box-shadow:
    0 20px 44px rgba(0, 0, 0, .5),
    0 0 0 1px rgba(255, 194, 75, .2),
    0 0 30px rgba(255, 162, 56, .24);
}
.shot-frame:hover::before { opacity: 1; }
.shot-frame img {
  width: 100%;
  display: block;
}
.shot-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 62%, rgba(5, 8, 15, .34));
  z-index: 2;
}
.shot-cap {
  margin-top: 14px;
  font-size: 13.5px;
  color: var(--txt-3);
  text-align: center;
}

/* 交错图文 */
.alt {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(30px, 5vw, 66px);
  align-items: center;
}
.alt.rev .alt-txt { order: 2; }
.alt-txt h3 { font-size: clamp(21px, 2.6vw, 29px); font-weight: 800; margin: 14px 0 14px; letter-spacing: -.01em; }
.alt-txt p { color: var(--txt-2); margin-bottom: 16px; }
.alt-txt ul { margin-top: 20px; display: grid; gap: 11px; }
.alt-txt li { position: relative; padding-left: 27px; color: var(--txt-2); font-size: 15px; }
.alt-txt li::before {
  content: "";
  position: absolute;
  left: 0; top: 9px;
  width: 15px; height: 15px;
  border-radius: 50%;
  background: linear-gradient(140deg, var(--brand-1), var(--brand-3));
}
.alt-txt li::after {
  content: "";
  position: absolute;
  left: 4.4px; top: 12.4px;
  width: 6px; height: 3.4px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: rotate(-45deg);
}
.alt-txt li b { color: var(--txt-1); font-weight: 600; }

/* ========================= 流程时间轴 ========================= */
.flow { margin-top: 48px; display: grid; gap: 16px; }
.flow-item {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 24px;
  padding: 24px 26px;
  border-radius: var(--r-md);
  background: rgba(255, 255, 255, .028);
  border: 1px solid var(--stroke);
  position: relative;
  overflow: hidden;
  transition: transform .4s var(--ease), border-color .4s, box-shadow .4s, background .4s;
}
.flow-item::after {
  content: "";
  position: absolute; inset: 0;
  border-radius: inherit; padding: 1px;
  background: linear-gradient(150deg, rgba(255,214,130,.9) 0%, rgba(255,160,60,.44) 36%,
              rgba(255,120,40,.13) 64%, rgba(255,200,110,.48) 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity .4s var(--ease); pointer-events: none;
}
.flow-item:hover {
  border-color: rgba(255, 194, 75, .42); background: rgba(255, 194, 75, .05);
  transform: translateY(-4px);
  box-shadow: 0 16px 34px rgba(0, 0, 0, .42), 0 0 26px rgba(255, 162, 56, .2),
              inset 0 1px 0 rgba(255, 226, 170, .16);
}
.flow-item:hover::after { opacity: 1; }
.flow-item > * { position: relative; z-index: 2; }
.flow-num {
  font-size: 30px;
  font-weight: 900;
  background: linear-gradient(140deg, var(--brand-1), var(--gold));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
}
.flow-item h4 { font-size: 17.5px; font-weight: 700; margin-bottom: 6px; }
.flow-item p { color: var(--txt-2); font-size: 14.5px; }

/* ========================= CTA ========================= */
.cta-box {
  padding: clamp(40px, 6vw, 72px);
  text-align: center;
  border-radius: var(--r-xl);
  background:
    radial-gradient(120% 130% at 50% 0%, rgba(255, 138, 43, .2), transparent 62%),
    linear-gradient(150deg, rgba(255, 255, 255, .06), rgba(255, 255, 255, .02));
  border: 1px solid rgba(255, 194, 75, .26);
  box-shadow: var(--shadow-2);
}
.cta-box h2 { font-size: clamp(24px, 3.6vw, 38px); font-weight: 800; letter-spacing: -.02em; }
.cta-box p { color: var(--txt-2); margin: 16px auto 32px; max-width: 620px; }

/* ========================= 页脚 ========================= */
.footer {
  border-top: 1px solid var(--stroke);
  padding: 56px 0 30px;
  background: rgba(3, 6, 12, .6);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 34px;
}
.footer h5 { font-size: 14px; font-weight: 700; margin-bottom: 16px; color: var(--txt-1); }
.footer li { margin-bottom: 10px; }
.footer a { color: var(--txt-3); font-size: 14px; transition: color .25s; }
.footer a:hover { color: var(--gold); }
.footer p { color: var(--txt-3); font-size: 14px; }
.footer-bot {
  border-top: 1px solid var(--stroke);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--txt-3);
  font-size: 13px;
}

/* ========================= 返回顶部 ========================= */
.totop {
  position: fixed;
  right: 22px; bottom: 22px;
  z-index: 800;
  width: 46px; height: 46px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--gold);
  background: rgba(10, 16, 32, .84);
  border: 1px solid var(--stroke-2);
  backdrop-filter: blur(12px);
  opacity: 0;
  pointer-events: none;
  transform: translateY(14px);
  transition: .35s var(--ease);
}
.totop.show { opacity: 1; pointer-events: auto; transform: none; }
.totop:hover { border-color: var(--gold); background: rgba(255, 194, 75, .14); }

/* ========================= 进场动效 ========================= */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .85s var(--ease), transform .85s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ========================= 响应式 ========================= */
@media (max-width: 1000px) {
  .alt { grid-template-columns: 1fr; }
  .alt.rev .alt-txt { order: 0; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  /* 首屏：窄屏改上下布局（LOGO 在上，文案在下） */
  .hero-main {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
    gap: clamp(20px, 3.4vh, 34px);
    min-height: auto;              /* 纵向布局（LOGO 在上）下按内容自适应，避免撑爆首屏 */
  }
  .hero-copy {
    position: relative;            /* 原为 absolute（桌面左右布局），手机端回归文档流，避免与 LOGO 重叠 */
    left: auto; top: auto;
    width: min(100%, 560px);
    padding: 28px 26px;
    text-align: center;
    /* ★ 清掉居中位移与 cardIn 填充帧（它们带 translate(-50%,-50%)，会让卡片左溢并与 LOGO 重叠） */
    transform: none;
    opacity: 1;                    /* 兜底：万一动画被禁依然可见 */
    animation: cardSlideDown 2.6s var(--ease) .3s backwards;   /* ★ 揭幕：放慢到 2.6s，缓缓露出 LOGO */
  }
  .hero-actions, .hero-meta { justify-content: center; }
  /* LOGO：手机端回到文档流居中（LOGO 在上、文案在下）。
     ★ 必须跳过 stageMove 左移动画：其终点 = 中心左移 650px（桌面布局），
       窄屏上会把 LOGO 飘出屏幕左侧，造成「手机看不到 LOGO」 */
  .hero { flex-direction: column; }
  .logo-stage {
    position: static;
    width: min(230px, 56vw);
    /* ★ 必须重置桌面端的布局层居中三件套：top/bottom:0 + margin:auto + 预留盒高。
       手机端 LOGO 回到文档流按内容排高；不重置的话残留高度(按370px基准算)会压扁盒子、
       margin:auto 在 flex 列里还会吸收主轴空白把 LOGO 顶偏（2026-10-18 加固） */
    top: auto; bottom: auto;
    height: auto;
    margin: 0 auto clamp(18px, 3vh, 30px);
    /* ★ 必须显式禁用基础动画与位移：stageMove 左移 650px 会让 LOGO 飘出窄屏。
       fill-mode 用 both：延迟期藏于 from 帧（透明），结束后定格 to 帧（可见）——
       ★ 上一版漏了 forwards，播完回到基础 opacity:0，LOGO 显现后又消失 */
    animation: logoReveal 2.6s var(--ease) .3s both;
    transform: none;
    opacity: 1;                     /* 兜底：动画被禁时依然可见 */
  }
  @keyframes logoReveal { from { opacity: 0; } to { opacity: 1; } }
  .stage-beam { animation: beamIn 1.2s var(--ease) 2.2s forwards; }  /* 揭幕后背光渐亮 */
  .shockwave { display: none; }
  /* 手机端没有开场动画，无需「跳过动画」按钮 */
  .skip-anim { display: none; }
  /* 激光灯：手机端恢复显示（尺寸已在 MQ780 收窄到 104px），整体减淡避免小屏刺眼 */
  .lasers { opacity: .7; }
  .city-far { height: 22vh; }
  .city-mid { height: 16vh; }
  .city-near { height: 10vh; }
  .laser { height: 70vh; width: 150px; }
  .laser-dot { width: 220px; height: 220px; }
}

@media (max-width: 780px) {
  .nav-links {
    position: fixed;
    inset: 68px 0 auto 0;
    flex-direction: column;
    gap: 0;
    padding: 12px 20px 22px;
    background: rgba(6, 10, 20, .97);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--stroke);
    transform: translateY(-130%);
    transition: transform .42s var(--ease);
  }
  .nav-links.on { transform: none; }
  .nav-links a { padding: 14px 4px; border-bottom: 1px solid var(--stroke); font-size: 15.5px; }
  .nav-links a::after { display: none; }
  .nav-cta { display: none; }
  .nav-burger { display: block; }

  .hero { padding: 96px 0 46px; }
  .hero-main { width: calc(100% - 28px); }
  .logo-stage { width: min(190px, 48vw); }
  .city-far { height: 17vh; }
  .city-mid { height: 12vh; }
  .city-near { height: 8vh; }
  .city-glow { height: 130px; bottom: 1%; }
  .laser { height: 52vh; width: 104px; }
  .laser-dot { width: 160px; height: 160px; }
  .scroll-hint { display: none; }

  .hero-copy { padding: 24px 20px; }
  .hero-title { font-size: clamp(22px, 6.4vw, 30px); }
  .hero-sub { font-size: 12.8px; margin-top: 10px; }
  .hero-actions { margin-top: 18px; gap: 10px; }
  .hero-meta { margin-top: 18px; padding-top: 16px; gap: 12px 18px; font-size: 12px; }
  .card-aura { inset: -10px; }
  .card-beam { opacity: .45; }

  .prod-card { padding: 26px; }
  .flow-item { grid-template-columns: 1fr; gap: 10px; padding: 20px; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .totop, .skip-anim { right: 14px; bottom: 14px; }
}

/* 矮屏笔记本：压缩首屏高度，保证方块完整 */
@media (max-height: 860px) and (min-width: 1001px) {
  .hero-copy { padding: clamp(24px, 2.6vw, 36px); }
  .hero-title { font-size: clamp(24px, 2.6vw, 36px); }
  .hero-meta { margin-top: 18px; padding-top: 15px; }
  .scroll-hint { display: none; }
}
@media (max-height: 740px) and (min-width: 1001px) {
  .hero-copy { padding: 22px 28px; }
  .hero-actions { margin-top: 16px; }
  .hero-sub { margin-top: 10px; }
  .hero-meta { display: none; }
}

@media (max-width: 480px) {
  .wrap { width: calc(100% - 30px); }
  .btn { padding: 12px 22px; font-size: 14.5px; }
  .hero-actions .btn { width: 100%; }
  .stats div { padding: 22px 12px; }
}

/* 无障碍：尊重减弱动效偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
  /* LOGO 三层为同画布绝对定位（left:0/top%），无需任何位移 */
  .hero-logo-safe {
    opacity: 1;
    transform: none;
  }
  .card-aura, .card-beam { opacity: .3; }

  /* ★ 品牌开场动画保留：系统关了「动画效果」的用户（如站主本人）也必须能看到
     开场序列（有「跳过动画」按钮兜底）；逐条写回原时长，覆盖上面的 .01ms */
  .logo-stage { animation-duration: 6s   !important; }
  .stage-beam { animation-duration: 1.4s !important; }
  .shockwave  { animation-duration: 1.5s !important; }
  .hero-copy  { animation-duration: .8s  !important; }

  /* ★ 城市剪影漂移同样保留（循环氛围，手机端一直可见，桌面端保持一致） */
  .city-far  { animation-duration: 90s !important; animation-iteration-count: infinite !important; }
  .city-mid  { animation-duration: 55s !important; animation-iteration-count: infinite !important; }
  .city-near { animation-duration: 32s !important; animation-iteration-count: infinite !important; }

  /* ★ 城市射灯恢复（基础 opacity:0 全靠循环动画显隐，被禁即永久不可见）；
     --dur 为每盏灯内联变量，写回 var 保留各自节奏 */
  .laser     { animation-duration: var(--dur, 9s) !important; animation-iteration-count: infinite !important; }
  .laser-dot { animation-duration: var(--dur, 9s) !important; animation-iteration-count: infinite !important; }
}

/* ★ 手机端（≤1000px）开场序列在减少动画模式下同样保留（组合查询，兼容老 WebView） */
@media (prefers-reduced-motion: reduce) and (max-width: 1000px) {
  .logo-stage { animation-duration: 2.6s !important; }
  .hero-copy  { animation-duration: 2.6s !important; }
  .stage-beam { animation-duration: 1.2s !important; }
}

/* ========================================
   下载区块
   ======================================== */
.download-section {
  padding: clamp(48px, 6vw, 80px) 0;
  background: linear-gradient(180deg, transparent, rgba(255, 150, 60, .04) 50%, transparent);
}
.download-card {
  display: flex;
  align-items: center;
  gap: clamp(24px, 4vw, 48px);
  padding: clamp(28px, 4vw, 48px) clamp(32px, 5vw, 56px);
  background: linear-gradient(135deg, rgba(255, 255, 255, .06), rgba(255, 255, 255, .02));
  border: 1px solid var(--stroke);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-1);
}
.download-icon {
  flex: 0 0 auto;
  width: 80px;
  height: 80px;
  border-radius: var(--r-lg);
  background: linear-gradient(135deg, rgba(255, 150, 60, .2), rgba(255, 100, 50, .1));
  border: 1px solid rgba(255, 150, 60, .3);
  display: grid;
  place-items: center;
}
.download-info {
  flex: 1;
  min-width: 0;
}
.download-info h3 {
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 800;
  margin: 0 0 8px;
  letter-spacing: -.01em;
}
.download-info p {
  color: var(--txt-2);
  font-size: clamp(14px, 1.6vw, 16px);
  line-height: 1.6;
  margin: 0;
}
@media (max-width: 640px) {
  .download-card {
    flex-direction: column;
    text-align: center;
  }
  .download-icon {
    width: 64px;
    height: 64px;
  }
}