/* ============================================================
   微光寻途 GlimmerPath — 宣传站样式
   深空底 + 微光渐变（青 → 紫 → 暖金）
   ============================================================ */

:root{
  /* 色彩 */
  --bg:          #06080F;
  --bg-soft:     #0A0E1A;
  --bg-alt:      #080B14;
  --panel:       rgba(255,255,255,.028);
  --panel-2:     rgba(255,255,255,.05);
  --line:        rgba(255,255,255,.09);
  --line-strong: rgba(255,255,255,.16);

  --text:        #E9EDF6;
  --text-soft:   #B4BFd4;
  --muted:       #7E8AA3;

  --c-cyan:      #7DD3FC;
  --c-violet:    #A78BFA;
  --c-amber:     #FCD34D;
  --grad:        linear-gradient(100deg, #7DD3FC 0%, #A78BFA 52%, #FCD34D 100%);
  --grad-soft:   linear-gradient(100deg, rgba(125,211,252,.16), rgba(167,139,250,.16) 52%, rgba(252,211,77,.16));

  /* 布局 */
  --wrap: 1440px;
  --pad:  clamp(20px, 5vw, 80px);
  --radius: 18px;
  --radius-sm: 12px;

  /* 动效 */
  --ease: cubic-bezier(.22,.61,.36,1);
  --t: .6s var(--ease);

  /* 字体 */
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-serif: "Noto Serif SC", "Songti SC", "STSong", Georgia, serif;
}

*,*::before,*::after{ box-sizing:border-box; }

html{
  scroll-behavior:smooth;
  scroll-padding-top: 92px;
  -webkit-text-size-adjust:100%;
}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

h1,h2,h3,h4{ margin:0; line-height:1.25; letter-spacing:-.01em; font-weight:650; }
p{ margin:0; }
ul,ol{ margin:0; padding:0; list-style:none; }
a{ color:inherit; text-decoration:none; }
img,svg{ display:block; max-width:100%; }
button{ font:inherit; color:inherit; background:none; border:0; cursor:pointer; }

::selection{ background:rgba(167,139,250,.32); color:#fff; }

/* 滚动条 */
::-webkit-scrollbar{ width:10px; height:10px; }
::-webkit-scrollbar-track{ background:var(--bg); }
::-webkit-scrollbar-thumb{ background:rgba(255,255,255,.12); border-radius:99px; border:3px solid var(--bg); }
::-webkit-scrollbar-thumb:hover{ background:rgba(255,255,255,.22); }

/* ============================================================
   背景层
   ============================================================ */
#glimmer{
  position:fixed; inset:0; width:100%; height:100%;
  z-index:0; pointer-events:none;
}

.bg-aurora{
  position:fixed; inset:-20% -10% auto -10%; height:120vh;
  z-index:-1; pointer-events:none;
  background:
    radial-gradient(58vw 46vw at 18% 8%,  rgba(125,211,252,.13), transparent 62%),
    radial-gradient(52vw 42vw at 84% 22%, rgba(167,139,250,.13), transparent 62%),
    radial-gradient(44vw 40vw at 52% 62%, rgba(252,211,77,.055), transparent 65%);
  filter:blur(28px);
  animation:aurora 26s ease-in-out infinite alternate;
}
@keyframes aurora{
  0%  { transform:translate3d(0,0,0) scale(1); }
  50% { transform:translate3d(2%,-2%,0) scale(1.06); }
  100%{ transform:translate3d(-2%,2%,0) scale(1.02); }
}

.bg-grid{
  position:fixed; inset:0; z-index:-1; pointer-events:none; opacity:.5;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(120% 78% at 50% 0%, #000 12%, transparent 78%);
  -webkit-mask-image:radial-gradient(120% 78% at 50% 0%, #000 12%, transparent 78%);
}

/* 鼠标聚光 */
.spotlight{
  position:fixed; inset:0; z-index:-1; pointer-events:none; opacity:0;
  transition:opacity .5s ease;
  background:radial-gradient(420px 420px at var(--mx,50%) var(--my,50%), rgba(167,139,250,.09), transparent 70%);
}
body.has-pointer .spotlight{ opacity:1; }

/* ============================================================
   进度条
   ============================================================ */
.scroll-progress{
  position:fixed; top:0; left:0; right:0; height:2px; z-index:120;
  background:rgba(255,255,255,.05);
}
.scroll-progress span{
  display:block; height:100%; width:0%;
  background:var(--grad);
  box-shadow:0 0 14px rgba(167,139,250,.6);
  transition:width .1s linear;
}

/* ============================================================
   导航
   ============================================================ */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:110;
  transition:background .4s var(--ease), border-color .4s var(--ease), backdrop-filter .4s;
  border-bottom:1px solid transparent;
}
.nav.is-stuck{
  background:rgba(6,8,15,.72);
  backdrop-filter:blur(18px) saturate(160%);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  border-bottom-color:var(--line);
}
.nav__inner{
  max-width:var(--wrap); margin:0 auto;
  padding:16px var(--pad);
  display:flex; align-items:center; justify-content:space-between; gap:24px;
}

.brand{ display:flex; align-items:center; gap:11px; }
.brand__mark{
  display:inline-grid; place-items:center;
  width:34px; height:34px; flex:none;
  filter:drop-shadow(0 0 12px rgba(80,120,255,.32));
}
.brand__mark img{ display:block; }
.brand__text{ display:flex; flex-direction:column; line-height:1.15; }
.brand__text strong{ font-size:16.5px; font-weight:650; letter-spacing:.06em; }
.brand__text em{
  font-style:normal; font-size:10.5px; letter-spacing:.24em;
  color:var(--muted); text-transform:uppercase;
}

.nav__links{ display:flex; align-items:center; gap:4px; }
.nav__link{
  position:relative; padding:8px 14px; border-radius:99px;
  font-size:14.5px; color:var(--text-soft);
  transition:color .25s var(--ease), background .25s var(--ease);
}
.nav__link:hover{ color:#fff; background:rgba(255,255,255,.05); }
.nav__link.is-active{ color:#fff; }
.nav__link.is-active::after{
  content:""; position:absolute; left:14px; right:14px; bottom:2px; height:1px;
  background:var(--grad); border-radius:2px;
}
.nav__cta{ margin-left:10px; }

.nav__toggle{
  display:none; width:42px; height:42px; border-radius:12px;
  border:1px solid var(--line); background:var(--panel);
  flex-direction:column; align-items:center; justify-content:center; gap:5px;
}
.nav__toggle span{
  display:block; width:17px; height:1.5px; background:var(--text); border-radius:2px;
  transition:transform .3s var(--ease), opacity .25s;
}
.nav__toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(6.5px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-6.5px) rotate(-45deg); }

/* ============================================================
   通用组件
   ============================================================ */
.wrap{ max-width:var(--wrap); margin:0 auto; padding:0 var(--pad); }

.grad{
  background:var(--grad);
  -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color:transparent; color:transparent;
}

.eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  padding:7px 16px 7px 12px; border-radius:99px;
  border:1px solid var(--line-strong);
  background:var(--panel);
  font-size:12px; letter-spacing:.16em; color:var(--text-soft);
  text-transform:uppercase;
}
.eyebrow .dot{
  width:7px; height:7px; border-radius:50%; background:var(--c-cyan);
  box-shadow:0 0 0 0 rgba(125,211,252,.6);
  animation:pulse 2.4s ease-out infinite;
}
@keyframes pulse{
  0%  { box-shadow:0 0 0 0 rgba(125,211,252,.55); }
  70% { box-shadow:0 0 0 11px rgba(125,211,252,0); }
  100%{ box-shadow:0 0 0 0 rgba(125,211,252,0); }
}

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:9px;
  padding:13px 26px; border-radius:99px;
  font-size:15px; font-weight:600; letter-spacing:.02em;
  border:1px solid transparent; cursor:pointer;
  transition:transform .3s var(--ease), box-shadow .3s var(--ease),
             background .3s var(--ease), border-color .3s var(--ease), color .3s;
  will-change:transform;
}
.btn svg{ width:18px; height:18px; transition:transform .3s var(--ease); }
.btn:hover svg{ transform:translateX(4px); }
.btn:hover{ transform:translateY(-2px); }

.btn--primary{
  color:#08101c;
  background:var(--grad);
  box-shadow:0 8px 30px -8px rgba(167,139,250,.55);
}
.btn--primary:hover{ box-shadow:0 14px 42px -10px rgba(167,139,250,.75); }

.btn--ghost{
  color:var(--text);
  border-color:var(--line-strong);
  background:var(--panel);
  backdrop-filter:blur(8px);
}
.btn--ghost:hover{ border-color:rgba(255,255,255,.3); background:var(--panel-2); }

.btn--sm{ padding:9px 18px; font-size:13.5px; color:#08101c; }
.btn--block{ width:100%; }

/* 卡片 */
.card{
  position:relative; overflow:hidden;
  padding:30px 28px; border-radius:var(--radius);
  border:1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255,255,255,.045), rgba(255,255,255,.012));
  transition:transform .45s var(--ease), border-color .45s var(--ease), box-shadow .45s var(--ease);
}
.card::before{
  content:""; position:absolute; inset:0; border-radius:inherit; opacity:0;
  background:radial-gradient(340px 240px at var(--cx,50%) var(--cy,0%), rgba(167,139,250,.14), transparent 68%);
  transition:opacity .45s var(--ease); pointer-events:none;
}
.card:hover{ transform:translateY(-5px); border-color:var(--line-strong); box-shadow:0 24px 60px -28px rgba(0,0,0,.9); }
.card:hover::before{ opacity:1; }
.card > *{ position:relative; }

.card__icon{
  width:46px; height:46px; margin-bottom:20px; border-radius:13px;
  display:grid; place-items:center;
  border:1px solid var(--line-strong);
  background:var(--grad-soft);
  color:var(--c-cyan);
}
.card__icon svg{ width:24px; height:24px; }

.card h3{ font-size:19px; margin-bottom:11px; }
.card p{ font-size:14.8px; color:var(--text-soft); line-height:1.8; }

.card__tag{
  display:block; margin-bottom:14px;
  font-size:11px; letter-spacing:.2em; color:var(--c-violet);
}
.card__num{
  display:block; margin-bottom:14px;
  font-family:var(--font-serif); font-size:22px;
  background:var(--grad); -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color:transparent;
}

.ticks{ margin-top:18px; padding-top:16px; border-top:1px solid var(--line); }
.ticks li{
  position:relative; padding-left:18px; margin-bottom:7px;
  font-size:13.8px; color:var(--muted);
}
.ticks li::before{
  content:""; position:absolute; left:0; top:.72em;
  width:6px; height:6px; border-radius:2px; background:var(--grad);
}

/* 区块 */
.section{ position:relative; z-index:1; padding:clamp(80px,11vw,140px) 0; }
.section--alt::before{
  content:""; position:absolute; inset:0; z-index:-1;
  background:linear-gradient(180deg, transparent, var(--bg-alt) 12%, var(--bg-alt) 88%, transparent);
}

.sec-head{ max-width:760px; margin-bottom:clamp(44px,6vw,68px); }
.sec-no{
  display:block; margin-bottom:14px;
  font-family:var(--font-serif); font-size:14px; letter-spacing:.3em;
  color:var(--muted);
}
.sec-title{ font-size:clamp(30px,4.6vw,50px); margin-bottom:20px; }
.sec-desc{ font-size:clamp(15px,1.55vw,17.5px); color:var(--text-soft); line-height:1.9; }

/* 栅格 */
.grid-4{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.grid-3{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position:relative; z-index:1;
  min-height:100svh;
  display:flex; align-items:center;
  padding:140px 0 110px;
}
.hero__inner{
  width:100%;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:clamp(36px,6vw,92px);
  align-items:center;
}

.hero__main{ min-width:0; }

.hero__title{
  margin:26px 0 0;
  font-size:clamp(40px,6.2vw,92px);
  font-weight:700; line-height:1.12; letter-spacing:-.025em;
}
.hero__title .line{ display:block; }
.hero__title .line:nth-child(2){ padding-left:.04em; }

.hero__sub{
  max-width:680px; margin-top:30px;
  font-size:clamp(15.5px,1.65vw,20px);
  color:var(--text-soft); line-height:1.9;
}

.hero__actions{ display:flex; flex-wrap:wrap; gap:14px; margin-top:40px; }

.stats{
  display:grid; grid-template-columns:repeat(4,minmax(0,1fr));
  gap:clamp(14px,2.4vw,32px); margin:64px 0 0;
  padding-top:32px; border-top:1px solid var(--line);
  max-width:none;
}
.stat dt{
  font-size:clamp(32px,4.2vw,52px); font-weight:700; line-height:1;
  background:var(--grad); -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color:transparent;
}
.stat dt.inf{ font-family:var(--font-serif); }
.stat dd{ margin:10px 0 0; font-size:clamp(12.5px,1.1vw,14.5px); color:var(--muted); letter-spacing:.04em; }

/* 右侧亮点面板 */
.hero__side{
  display:grid; gap:16px;
  perspective:1000px;
}
.side-card{
  position:relative; overflow:hidden;
  padding:24px 26px; border-radius:var(--radius);
  border:1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(255,255,255,.06), rgba(255,255,255,.015));
  transition:transform .45s var(--ease), border-color .45s var(--ease), box-shadow .45s var(--ease);
}
.side-card::before{
  content:""; position:absolute; inset:0; border-radius:inherit; opacity:0;
  background:radial-gradient(260px 180px at var(--cx,80%) var(--cy,20%), rgba(167,139,250,.13), transparent 66%);
  transition:opacity .45s var(--ease); pointer-events:none;
}
.side-card:hover{ transform:translateY(-4px) rotateX(2deg); border-color:var(--line-strong); box-shadow:0 22px 50px -28px rgba(0,0,0,.85); }
.side-card:hover::before{ opacity:1; }
.side-card > *{ position:relative; }
.side-card__top{
  display:flex; align-items:center; justify-content:space-between; gap:12px;
  margin-bottom:12px;
}
.side-card__label{
  font-size:11px; letter-spacing:.18em; text-transform:uppercase; color:var(--muted);
}
.side-card__value{
  font-size:clamp(22px,2.2vw,30px); font-weight:700; letter-spacing:-.02em;
  background:var(--grad); -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color:transparent;
}
.side-card h3{ font-size:17px; font-weight:650; margin-bottom:6px; letter-spacing:-.01em; }
.side-card p{
  font-size:14px; color:var(--text-soft); line-height:1.75;
}
.side-card__meta{
  display:flex; flex-wrap:wrap; gap:6px; margin-top:14px;
}
.side-card__meta span{
  font-size:11px; color:var(--text-soft);
  background:var(--panel-2); border:1px solid var(--line);
  border-radius:7px; padding:3px 8px;
}
.side-card__badge{
  display:inline-flex; align-items:center; gap:7px;
  font-size:12px; color:var(--c-cyan);
}
.side-card__badge::before{
  content:""; width:7px; height:7px; border-radius:50%; background:var(--c-cyan);
  box-shadow:0 0 0 0 rgba(125,211,252,.55);
  animation:pulse 2.4s ease-out infinite;
}

.scroll-hint{
  position:absolute; left:50%; bottom:34px; transform:translateX(-50%);
  display:flex; flex-direction:column; align-items:center; gap:10px;
  color:var(--muted); font-size:10px; letter-spacing:.3em;
}
.scroll-hint__line{
  width:1px; height:52px;
  background:linear-gradient(180deg, transparent, var(--line-strong));
  overflow:hidden; position:relative;
}
.scroll-hint__line::after{
  content:""; position:absolute; top:-52px; left:0; width:1px; height:52px;
  background:linear-gradient(180deg, transparent, var(--c-cyan));
  animation:drop 2.2s var(--ease) infinite;
}
@keyframes drop{
  0%{ transform:translateY(0); opacity:0; }
  25%{ opacity:1; }
  100%{ transform:translateY(104px); opacity:0; }
}
.scroll-hint:hover{ color:var(--text-soft); }

/* ============================================================
   关于我们
   ============================================================ */
.about__grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.12fr);
  gap:clamp(36px,5.5vw,78px);
  align-items:start;
}
.about__intro{ position:sticky; top:110px; }
.about__intro .sec-head{ max-width:none; margin-bottom:0; }
.about__intro .pull{ margin-top:32px; }

.about__beliefs{
  display:grid; grid-template-columns:1fr 1fr; gap:20px;
}
.about__beliefs .belief:nth-child(3){ grid-column:1 / -1; }

.beliefs{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }

.pull{
  margin:28px 0 0; padding:38px 40px;
  border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(100deg, rgba(125,211,252,.07), rgba(167,139,250,.07), rgba(252,211,77,.05));
}
.pull p{
  font-family:var(--font-serif);
  font-size:clamp(19px,2.5vw,29px); line-height:1.65;
}
.pull strong{ background:var(--grad); -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent; font-weight:600; }

/* ============================================================
   智能体闭环
   ============================================================ */
.loop{ position:relative; }
.loop__rail{
  position:absolute; left:0; right:0; top:34px; height:1px;
  background:var(--line); overflow:hidden; border-radius:2px;
}
.loop__rail span{
  display:block; height:100%; width:0;
  background:var(--grad);
  box-shadow:0 0 12px rgba(167,139,250,.7);
  transition:width 1.6s var(--ease);
}
.loop__list{
  display:grid; grid-template-columns:repeat(6,1fr); gap:18px;
}
.loop__node{ position:relative; padding-top:0; }
.loop__idx{
  position:relative; z-index:1;
  display:grid; place-items:center;
  width:44px; height:44px; margin-bottom:22px;
  border-radius:50%;
  border:1px solid var(--line-strong);
  background:var(--bg-soft);
  font-size:13px; font-weight:600; letter-spacing:.04em;
  color:var(--text-soft);
  transition:border-color .4s var(--ease), color .4s var(--ease), box-shadow .4s var(--ease), transform .4s var(--ease);
}
.loop__node:hover .loop__idx{
  color:#08101c; border-color:transparent; transform:translateY(-3px);
  background:var(--grad);
  box-shadow:0 10px 30px -10px rgba(167,139,250,.7);
}
.loop__node h4{ font-size:17px; margin-bottom:9px; display:flex; flex-direction:column; gap:3px; }
.loop__node h4 span{
  font-size:10.5px; font-weight:500; letter-spacing:.2em;
  color:var(--muted); text-transform:uppercase;
}
.loop__node p{ font-size:14px; color:var(--text-soft); line-height:1.78; }

/* ============================================================
   座右铭
   ============================================================ */
.motto{
  position:relative; z-index:1;
  padding:clamp(90px,13vw,160px) 0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:
    radial-gradient(70vw 40vw at 50% 50%, rgba(167,139,250,.09), transparent 70%),
    var(--bg-soft);
}
.motto__inner{
  position:relative;
  display:grid;
  grid-template-columns:1fr 1.7fr 1fr;
  gap:clamp(30px,5vw,64px);
  align-items:center;
}
.motto__center{ position:relative; text-align:center; }
.motto__quote{
  position:absolute; top:-90px; left:50%; transform:translateX(-50%);
  font-family:var(--font-serif); font-size:200px; line-height:1;
  background:var(--grad); -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color:transparent; opacity:.16;
  pointer-events:none; user-select:none;
}
.motto__text{
  font-family:var(--font-serif);
  font-size:clamp(24px,4.4vw,48px);
  font-weight:500; line-height:1.55; letter-spacing:.02em;
}
.motto__by{ margin-top:28px; font-size:13px; letter-spacing:.22em; color:var(--muted); }

.motto__side{ position:relative; }
.motto__side--left{ text-align:right; }
.motto__side--right{ text-align:left; }
.motto__kicker{
  display:block; margin-bottom:16px;
  font-size:11px; letter-spacing:.2em; text-transform:uppercase; color:var(--c-violet);
}
.motto__side p{
  font-size:clamp(14px,1.25vw,16.5px); color:var(--text-soft); line-height:1.85;
}
.motto__side::before{
  content:""; position:absolute; top:6px; width:28px; height:1px; background:var(--line-strong);
}
.motto__side--left::before{ right:0; }
.motto__side--right::before{ left:0; }

/* ============================================================
   加入我们
   ============================================================ */
.join{ display:grid; grid-template-columns:1.15fr .85fr; gap:clamp(28px,5vw,64px); align-items:start; }
.join__roles{ margin-top:34px; border-top:1px solid var(--line); }
.join__roles li{
  display:flex; align-items:baseline; justify-content:space-between; gap:20px;
  padding:20px 6px; border-bottom:1px solid var(--line);
  transition:padding-left .35s var(--ease), background .35s var(--ease);
}
.join__roles li:hover{ padding-left:16px; background:rgba(255,255,255,.025); }
.join__roles strong{ font-size:16.5px; font-weight:600; }
.join__roles span{ font-size:13.5px; color:var(--muted); text-align:right; }

.cta-card{
  padding:36px 32px;
  background:linear-gradient(160deg, rgba(167,139,250,.12), rgba(125,211,252,.05) 55%, rgba(255,255,255,.02));
  border-color:var(--line-strong);
}
.cta-card h3{ font-size:22px; margin-bottom:12px; }
.cta-card p{ font-size:14.8px; color:var(--text-soft); }
.cta-card .btn{ margin-top:26px; word-break:break-all; }
.cta-card__note{ margin-top:18px; font-size:12.5px; color:var(--muted) !important; }

/* 交流二维码 */
.qr-wrap{
  margin-top:26px;
  display:flex; justify-content:center;
}
.qr-wrap figure{
  margin:0; text-align:center;
}
.qr-wrap img{
  width:min(180px, 60vw); height:auto;
  border-radius:14px;
  background:#fff;
  padding:10px;
  box-shadow:0 12px 40px rgba(0,0,0,.28);
  transition:transform .35s var(--ease), box-shadow .35s var(--ease);
}
.qr-wrap img:hover{
  transform:translateY(-3px);
  box-shadow:0 18px 50px rgba(0,0,0,.36);
}
.qr-wrap figcaption{
  margin-top:10px;
  font-size:13px; color:var(--text-soft); letter-spacing:.02em;
}

/* ============================================================
   页脚
   ============================================================ */
.footer{
  position:relative; z-index:1;
  padding:clamp(64px,8vw,96px) 0 34px;
  border-top:1px solid var(--line);
  background:var(--bg-soft);
}
.footer__inner{
  display:grid; grid-template-columns:1.5fr .7fr 1fr; gap:clamp(30px,5vw,64px);
}
.footer__sign{ margin-top:22px; font-size:14px; color:var(--muted); line-height:1.9; max-width:52ch; }
.footer__nav{ display:flex; flex-direction:column; gap:10px; }
.footer__nav h4, .footer__contact h4{
  margin-bottom:6px; font-size:12px; letter-spacing:.22em; color:var(--text-soft); text-transform:uppercase;
  font-weight:600;
}
.footer__nav a{ font-size:14.5px; color:var(--muted); transition:color .25s, transform .25s; width:fit-content; }
.footer__nav a:hover{ color:#fff; transform:translateX(3px); }
.footer__contact a{ font-size:15px; color:var(--text-soft); transition:color .25s; }
.footer__contact a:hover{ color:var(--c-cyan); }
.footer__contact p{ margin-top:16px; font-size:13.5px; color:var(--muted); line-height:1.85; }

.footer__bottom{
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  margin-top:clamp(46px,6vw,70px); padding-top:26px;
  border-top:1px solid var(--line);
  font-size:12.5px; color:var(--muted);
}
.footer__legal{ display:flex; align-items:center; flex-wrap:wrap; gap:8px 18px; }
.footer__icp{ transition:color .25s; }
.footer__icp:hover{ color:var(--text-soft); }
.to-top{ transition:color .25s; }
.to-top:hover{ color:#fff; }

/* ============================================================
   滚动揭示
   ============================================================ */
.reveal{
  opacity:0; transform:translateY(26px);
  transition:opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.is-in{ opacity:1; transform:none; }
.reveal[data-delay="1"]{ transition-delay:.08s; }
.reveal[data-delay="2"]{ transition-delay:.16s; }
.reveal[data-delay="3"]{ transition-delay:.24s; }
.reveal[data-delay="4"]{ transition-delay:.32s; }
.reveal[data-delay="5"]{ transition-delay:.40s; }
.reveal[data-delay="6"]{ transition-delay:.48s; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1200px){
  .hero__inner{ grid-template-columns:1fr; gap:52px; }
  .hero__side{ grid-template-columns:repeat(2,1fr); }
  .hero__side .side-card:nth-child(3){ grid-column:span 2; }
}

@media (max-width:1080px){
  .nav__links{ gap:0; }
  .nav__link{ padding:8px 10px; font-size:14px; }
  .grid-4{ grid-template-columns:repeat(2,1fr); }
  .loop__list{ grid-template-columns:repeat(3,1fr); gap:28px 18px; }
  .loop__rail{ display:none; }
  .footer__inner{ grid-template-columns:1fr 1fr; }
  .about__grid{ grid-template-columns:1fr; gap:48px; }
  .about__intro{ position:static; }
  .about__beliefs{ grid-template-columns:repeat(3,1fr); }
  .about__beliefs .belief:nth-child(3){ grid-column:auto; }
  .motto__inner{ grid-template-columns:1fr; gap:40px; text-align:center; }
  .motto__side--left, .motto__side--right{ text-align:center; }
  .motto__side::before{ display:none; }
}

@media (max-width:860px){
  html{ scroll-padding-top:78px; }

  .nav__toggle{ display:flex; }
  .nav__links{
    position:fixed; top:0; right:0; bottom:0; width:min(84vw,340px);
    flex-direction:column; align-items:stretch; gap:2px;
    padding:100px 26px 40px;
    background:rgba(8,11,20,.96);
    backdrop-filter:blur(24px);
    -webkit-backdrop-filter:blur(24px);
    border-left:1px solid var(--line);
    transform:translateX(102%);
    transition:transform .45s var(--ease);
    overflow-y:auto;
  }
  .nav__links.is-open{ transform:none; }
  .nav__link{ padding:14px 12px; font-size:16px; border-radius:var(--radius-sm); }
  .nav__link.is-active::after{ display:none; }
  .nav__link.is-active{ background:rgba(255,255,255,.06); }
  .nav__cta{ margin:18px 0 0; }

  .beliefs{ grid-template-columns:1fr; }
  .about__beliefs{ grid-template-columns:1fr; }
  .about__beliefs .belief:nth-child(3){ grid-column:auto; }
  .grid-3{ grid-template-columns:repeat(2,1fr); }
  .join{ grid-template-columns:1fr; }
  .stats{ grid-template-columns:repeat(2,1fr); gap:26px 14px; }
  .hero{ min-height:auto; padding:130px 0 90px; }
  .hero__side{ grid-template-columns:1fr; }
  .hero__side .side-card:nth-child(3){ grid-column:auto; }
  .scroll-hint{ display:none; }
  .motto__quote{ font-size:120px; top:-56px; }
}

@media (max-width:620px){
  body{ font-size:15.5px; }
  .grid-4,.grid-3{ grid-template-columns:1fr; }
  .loop__list{ grid-template-columns:1fr; gap:26px; }
  .loop__node{ display:grid; grid-template-columns:44px 1fr; gap:0 18px; }
  .loop__idx{ grid-row:span 2; margin-bottom:0; }
  .loop__node h4{ margin-top:2px; }
  .pull{ padding:28px 24px; }
  .card{ padding:26px 22px; }
  .footer__inner{ grid-template-columns:1fr; }
  .footer__bottom{ flex-direction:column; align-items:flex-start; gap:10px; }
  .join__roles li{ flex-direction:column; align-items:flex-start; gap:4px; }
  .join__roles span{ text-align:left; }
  .motto__quote{ display:none; }
}

/* ============================================================
   产品矩阵
   ============================================================ */
.prod-grid{
  display:grid; grid-template-columns:repeat(2,1fr); gap:20px;
  margin-top:clamp(40px,5vw,60px);
}

.prod{ padding:30px 28px 28px; }
/* 覆盖通用 .card 悬停流光，改用产品强调色 */
.prod::before{
  background:radial-gradient(360px 260px at var(--cx,50%) var(--cy,0%), var(--glow,rgba(167,139,250,.16)), transparent 68%);
}
.prod .prod__bar{
  position:absolute; left:0; top:0; width:100%; height:3px;
  border-radius:var(--radius) var(--radius) 0 0;
  background:linear-gradient(90deg, var(--accent), transparent 72%);
  opacity:.9;
}
.prod .card__tag{ color:var(--accent); }

.prod .prod__head{
  display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
  flex-wrap:wrap; margin-bottom:14px;
}
.prod .prod__name{
  font-size:20px; font-weight:700; letter-spacing:-.01em; line-height:1.25;
}
.prod .prod__name small{
  display:block; margin-top:4px; font-size:12.5px; font-weight:500;
  color:var(--muted); letter-spacing:.02em;
}
.prod .ver{
  flex:none; font-size:11px; color:var(--text-soft);
  background:var(--panel-2); border:1px solid var(--line);
  border-radius:99px; padding:4px 11px; white-space:nowrap;
}

.prod .prod__pos{
  font-size:15px; color:var(--text); line-height:1.7;
  padding-left:13px; border-left:3px solid var(--accent); margin-bottom:18px;
}
.prod .prod__pos span{
  display:block; margin-top:6px; color:var(--text-soft); font-size:14px;
}

.prod .prod-chips{ display:flex; flex-wrap:wrap; gap:7px; margin-bottom:18px; }
.prod .prod-chip{
  font-size:11.5px; color:var(--text-soft);
  background:var(--panel-2); border:1px solid var(--line);
  border-radius:8px; padding:3px 9px;
}

.prod .prod__feat{ margin-top:16px; padding-top:16px; border-top:1px solid var(--line); }
.prod .prod__feat li{ font-size:13.8px; color:var(--muted); line-height:1.7; }
.prod .prod__feat li strong{ color:var(--text); font-weight:600; }

.prod .prod__note{
  margin-top:16px; padding-top:13px; border-top:1px dashed var(--line-strong);
  font-size:12px; color:var(--muted); line-height:1.65;
}
.prod .prod__note b{ color:var(--text-soft); font-weight:600; }

/* 强调色循环：青 → 紫 → 暖金 */
.accent-cyan  { --accent:#7DD3FC; --glow:rgba(125,211,252,.16); }
.accent-violet{ --accent:#A78BFA; --glow:rgba(167,139,250,.16); }
.accent-amber { --accent:#FCD34D; --glow:rgba(252,211,77,.14); }

@media (min-width:1280px){
  .prod-grid{ grid-template-columns:repeat(3,1fr); }
}

@media (max-width:860px){
  .prod-grid{ grid-template-columns:1fr; }
}

/* ============================================================
   亮色主题（data-theme="light"）
   沿用「微光」视觉语言，翻成明亮通透的浅底
   ============================================================ */
[data-theme="light"]{
  --bg:          #F4F7FC;
  --bg-soft:     #FFFFFF;
  --bg-alt:      #EEF2FA;
  --panel:       rgba(15,23,42,.035);
  --panel-2:     rgba(15,23,42,.06);
  --line:        rgba(15,23,42,.10);
  --line-strong: rgba(15,23,42,.18);

  --text:        #0F172A;
  --text-soft:   #475569;
  --muted:       #6B7A90;

  --c-cyan:      #0EA5E9;
  --c-violet:    #7C5CFC;
  --c-amber:     #D98300;
  --grad:        linear-gradient(100deg, #0EA5E9 0%, #7C5CFC 52%, #F59E0B 100%);
  --grad-soft:   linear-gradient(100deg, rgba(14,165,233,.12), rgba(124,92,252,.12) 52%, rgba(245,158,11,.10));
}

/* 文本选区 */
[data-theme="light"] ::selection{ background:rgba(124,92,252,.22); color:var(--text); }

/* 滚动条 */
[data-theme="light"] ::-webkit-scrollbar-track{ background:var(--bg); }
[data-theme="light"] ::-webkit-scrollbar-thumb{ background:rgba(15,23,42,.14); }
[data-theme="light"] ::-webkit-scrollbar-thumb:hover{ background:rgba(15,23,42,.26); }

/* 背景装饰：浅底上用较高饱和的彩色微光 */
[data-theme="light"] .bg-aurora{
  background:
    radial-gradient(58vw 46vw at 18% 8%,  rgba(14,165,233,.20),  transparent 62%),
    radial-gradient(52vw 42vw at 84% 22%, rgba(124,92,252,.20),  transparent 62%),
    radial-gradient(44vw 40vw at 52% 62%, rgba(245,158,11,.12),  transparent 65%);
}
[data-theme="light"] .bg-grid{
  background-image:
    linear-gradient(rgba(15,23,42,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15,23,42,.05) 1px, transparent 1px);
}
[data-theme="light"] .spotlight{
  background:radial-gradient(420px 420px at var(--mx,50%) var(--my,50%), rgba(124,92,252,.14), transparent 70%);
}
[data-theme="light"] .scroll-progress{ background:rgba(15,23,42,.06); }

/* 导航 */
[data-theme="light"] .nav.is-stuck{
  background:rgba(244,247,252,.82);
  border-bottom-color:var(--line);
}
[data-theme="light"] .nav__link:hover{ color:var(--text); background:rgba(15,23,42,.05); }
[data-theme="light"] .nav__link.is-active{ color:var(--text); }
[data-theme="light"] .nav__link.is-active::after{ opacity:.9; }

/* 主题切换按钮 */
.theme-toggle{
  display:grid; place-items:center; flex:none;
  width:42px; height:42px; border-radius:12px;
  border:1px solid var(--line); background:var(--panel);
  color:var(--text-soft);
  transition:color .25s, border-color .25s, background .25s, transform .3s var(--ease);
}
.theme-toggle:hover{ color:var(--text); border-color:var(--line-strong); transform:translateY(-2px); }
.theme-toggle svg{ width:20px; height:20px; }
.theme-toggle .ico-sun{ display:block; }
.theme-toggle .ico-moon{ display:none; }
[data-theme="light"] .theme-toggle .ico-sun{ display:none; }
[data-theme="light"] .theme-toggle .ico-moon{ display:block; }

/* 按钮 */
[data-theme="light"] .btn--primary{ color:#fff; box-shadow:0 8px 30px -8px rgba(124,92,252,.5); }
[data-theme="light"] .btn--primary:hover{ box-shadow:0 14px 42px -10px rgba(124,92,252,.68); }
[data-theme="light"] .btn--sm{ color:#fff; }
[data-theme="light"] .btn--ghost{ color:var(--text); border-color:var(--line-strong); background:var(--panel); }
[data-theme="light"] .btn--ghost:hover{ border-color:rgba(15,23,42,.28); background:var(--panel-2); }

/* 卡片：浅底 + 柔和边框与投影 */
[data-theme="light"] .card,
[data-theme="light"] .side-card{
  background:linear-gradient(180deg, rgba(255,255,255,.85), rgba(255,255,255,.55));
  border-color:var(--line);
  box-shadow:0 1px 2px rgba(15,23,42,.04), 0 18px 44px -30px rgba(15,23,42,.30);
}
[data-theme="light"] .card:hover,
[data-theme="light"] .side-card:hover{
  border-color:var(--line-strong);
  box-shadow:0 2px 4px rgba(15,23,42,.05), 0 26px 60px -28px rgba(15,23,42,.34);
}
[data-theme="light"] .card::before,
[data-theme="light"] .side-card::before{
  background:radial-gradient(340px 240px at var(--cx,50%) var(--cy,0%), rgba(124,92,252,.16), transparent 68%);
}
[data-theme="light"] .card__icon{ border-color:var(--line-strong); background:var(--grad-soft); color:var(--c-cyan); }
[data-theme="light"] .side-card__meta span{ background:var(--panel-2); border-color:var(--line); }

/* 通用标签/区块 */
[data-theme="light"] .eyebrow{ border-color:var(--line-strong); background:var(--panel); color:var(--text-soft); }
[data-theme="light"] .pull{
  border-color:var(--line);
  background:linear-gradient(100deg, rgba(14,165,233,.08), rgba(124,92,252,.08), rgba(245,158,11,.06));
}
[data-theme="light"] .loop__idx{ background:var(--bg-soft); border-color:var(--line-strong); color:var(--text-soft); }
[data-theme="light"] .join__roles li:hover{ background:rgba(15,23,42,.03); }

/* CTA 卡片 + 二维码 */
[data-theme="light"] .cta-card{
  background:linear-gradient(160deg, rgba(124,92,252,.12), rgba(14,165,233,.07) 55%, rgba(255,255,255,.6));
  border-color:var(--line-strong);
}
[data-theme="light"] .qr-wrap img{ box-shadow:0 12px 40px rgba(15,23,42,.18); }

/* 页脚 */
[data-theme="light"] .footer{ background:var(--bg-soft); border-top-color:var(--line); }
[data-theme="light"] .footer__nav a:hover{ color:var(--c-violet); }
[data-theme="light"] .to-top:hover{ color:var(--text); }

/* 移动端菜单（浅底） */
[data-theme="light"] .nav__toggle{ border-color:var(--line); background:var(--panel); }
@media (max-width:860px){
  [data-theme="light"] .nav__links{
    background:rgba(255,255,255,.98);
    border-left-color:var(--line);
  }
  [data-theme="light"] .nav__link.is-active{ background:rgba(15,23,42,.05); }
  [data-theme="light"] .nav__link:hover{ background:rgba(15,23,42,.05); }
}

/* 无障碍：减少动效 */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important; animation-iteration-count:1 !important;
    transition-duration:.001ms !important; scroll-behavior:auto !important;
  }
  .reveal{ opacity:1; transform:none; }
}