/* 甄趣无限官网：首页、隐私政策、服务条款共用这一份样式。不引任何外部字体和脚本 */
:root{
  --bg:#ffffff;
  --bg-soft:#f6f6fb;
  --text:#15171c;
  --text-2:#5a606c;
  --line:#e6e7ee;
  --accent:#5b5bff;
  --grad:linear-gradient(100deg,#00b4ff 0%,#5b5bff 38%,#b14bff 68%,#ff5c8a 100%);
  --header:68px;
  color-scheme:light;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);color:var(--text);
  font:16px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
section{scroll-margin-top:var(--header)}
.grad-text{
  color:var(--accent);background-image:var(--grad);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}

/* 顶栏：页面顶部时透明、压在彩色背景上；往下滚后变白底 + 细线 */
.top{
  position:sticky;top:0;z-index:20;
  background:rgba(255,255,255,0);border-bottom:1px solid transparent;
  transition:background .25s,border-color .25s;
}
.top.scrolled{
  background:rgba(255,255,255,.9);border-bottom-color:var(--line);
  -webkit-backdrop-filter:saturate(180%) blur(12px);backdrop-filter:saturate(180%) blur(12px);
}
.top-in{height:var(--header);display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:12px}
.mark{width:42px;height:18px;flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text b{font-size:17px;letter-spacing:.08em}
.brand-text small{font-size:10px;letter-spacing:.24em;color:var(--text-2);font-weight:500}
.nav{display:flex;gap:36px;font-size:15px;color:#3b404b}
.nav a{transition:color .15s}
.nav a:hover{color:var(--accent)}

/* 彩色光斑背景：几团径向渐变慢慢飘，底部渐隐成白色，不留硬边 */
.aurora{position:absolute;top:0;left:0;right:0;bottom:0;overflow:hidden;pointer-events:none;z-index:0}
.aurora i{
  position:absolute;display:block;border-radius:50%;
  animation:drift 18s ease-in-out infinite alternate;
}
.aurora .a1{width:640px;height:640px;right:-140px;top:-180px;background:radial-gradient(closest-side,rgba(0,180,255,.42),rgba(0,180,255,0))}
.aurora .a2{width:580px;height:580px;right:240px;top:90px;background:radial-gradient(closest-side,rgba(177,75,255,.32),rgba(177,75,255,0));animation-duration:22s;animation-delay:-6s}
.aurora .a3{width:540px;height:540px;right:-80px;top:260px;background:radial-gradient(closest-side,rgba(255,92,138,.32),rgba(255,92,138,0));animation-duration:20s;animation-delay:-10s}
.aurora .a4{width:520px;height:520px;left:-200px;top:-160px;background:radial-gradient(closest-side,rgba(255,174,61,.26),rgba(255,174,61,0));animation-duration:24s}
.aurora:after{content:"";position:absolute;left:0;right:0;bottom:0;height:180px;background:linear-gradient(rgba(255,255,255,0),#fff)}
@keyframes drift{
  0%{transform:translate(0,0) scale(1)}
  50%{transform:translate(-40px,30px) scale(1.08)}
  100%{transform:translate(30px,-20px) scale(.95)}
}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;height:48px;padding:0 28px;border-radius:999px;
  font-size:15px;font-weight:500;letter-spacing:.04em;
  transition:transform .2s,box-shadow .2s,border-color .2s,color .2s;
}
.btn.primary{
  background-image:var(--grad);color:#fff;
  box-shadow:0 12px 26px -12px rgba(91,91,255,.8);
}
.btn.primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px -12px rgba(177,75,255,.8)}
.btn.ghost{background:rgba(255,255,255,.7);color:var(--text);border:1px solid #d6d8e2}
.btn.ghost:hover{border-color:var(--accent);color:var(--accent)}

/* 首屏（往上提一个顶栏的高度，让光斑延伸到透明顶栏后面） */
.hero{position:relative;overflow:hidden;margin-top:-68px;padding-top:68px}
.hero-in{
  position:relative;z-index:1;display:grid;grid-template-columns:1.05fr 1fr;align-items:center;gap:56px;
  min-height:600px;padding-top:56px;padding-bottom:56px;
}
.eyebrow{font-size:13px;letter-spacing:.16em;text-transform:uppercase;font-weight:600}
h1{font-size:56px;font-size:clamp(40px,6vw,72px);line-height:1.15;letter-spacing:.04em;font-weight:800;margin-top:20px}
.lead{font-size:18px;color:var(--text-2);max-width:28em;margin-top:28px}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:40px}
.hero-art svg{display:block;width:100%;max-width:580px;margin-left:auto;overflow:visible}
.hero-art .echo{fill:none;stroke:rgba(91,91,255,.22);stroke-width:.22}
.hero-art .glow{fill:none;stroke:url(#g-rainbow);stroke-width:3;opacity:0;animation:glow-in 1.2s ease 1.6s forwards}
.hero-art .loop{
  fill:none;stroke:url(#g-rainbow);stroke-width:1.6;stroke-linejoin:round;
  stroke-dasharray:1;stroke-dashoffset:1;animation:draw 2.4s cubic-bezier(.65,0,.35,1) .2s forwards;
}
.hero-art .dot{fill:#fff;stroke:#b14bff;stroke-width:.5;opacity:0;animation:fade .6s ease 2.4s forwards}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes fade{to{opacity:1}}
@keyframes glow-in{to{opacity:.5}}

/* 区块 */
.sec{padding:104px 0}
.soft{background:var(--bg-soft)}
.two{display:grid;grid-template-columns:280px 1fr;gap:48px}
.sec-head .en{display:inline-block;font-size:13px;letter-spacing:.16em;text-transform:uppercase;font-weight:700;margin-bottom:8px}
.sec-head h2{font-size:34px;line-height:1.3;letter-spacing:.06em}
.sec-body{max-width:40em}
.sec-body p{font-size:17px;color:var(--text-2)}
.sec-body p+p{margin-top:16px}
.bar{display:block;width:72px;height:4px;border-radius:2px;background-image:var(--grad);margin-top:32px}

/* 业务卡片：每张一种渐变色 */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px}
.card{
  position:relative;overflow:hidden;background:#fff;border-radius:18px;padding:32px 28px 36px;
  box-shadow:0 1px 2px rgba(20,22,40,.04),0 10px 28px -14px rgba(20,22,40,.14);
  transition:transform .25s,box-shadow .25s;
}
.card:before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background-image:var(--c)}
.card:hover{transform:translateY(-4px);box-shadow:0 22px 44px -18px var(--glow)}
.card .ico{
  width:52px;height:52px;border-radius:14px;background-image:var(--c);
  display:flex;align-items:center;justify-content:center;box-shadow:0 10px 22px -10px var(--glow);
}
.card .ico svg{width:26px;height:26px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.card .no{
  position:absolute;right:24px;top:20px;font-size:44px;font-weight:800;line-height:1;opacity:.2;
  color:var(--accent);background-image:var(--c);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.card h3{font-size:21px;letter-spacing:.04em;margin:24px 0 8px}
.card p{font-size:15px;color:var(--text-2)}

/* 公司信息 */
.info>div{display:grid;grid-template-columns:180px 1fr;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}
.info>div:first-child{border-top:1px solid var(--line)}
.info dt{font-size:15px;color:var(--text-2)}
.info dd{font-size:16px}
.info .mono{letter-spacing:.06em;font-variant-numeric:tabular-nums}
.info a:hover{color:var(--accent)}

/* 页脚 */
.foot{position:relative;background:#101116;color:#9298a4;font-size:13px}
.foot:before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background-image:var(--grad)}
.foot-in{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px 32px;padding-top:44px;padding-bottom:28px}
.foot .brand-text b{color:#fff;font-size:15px}
.foot .brand-text small{color:#7d838e}
.foot .mark{width:36px;height:16px}
.foot-links{display:flex;gap:28px;font-size:14px;color:#c4c8d0}
.foot-links a:hover{color:#fff}
.foot-copy{border-top:1px solid #23252d;padding-top:20px;padding-bottom:32px}

/* 隐私政策、服务条款 */
.doc-hero{position:relative;overflow:hidden;margin-top:-68px;padding-top:148px;padding-bottom:64px}
.doc-hero .wrap{position:relative;z-index:1}
.doc-title{font-size:44px;line-height:1.25;letter-spacing:.06em;font-weight:800;margin-top:12px}
.doc-meta{color:var(--text-2);font-size:14px;margin-top:14px}
.doc-meta span+span{margin-left:24px}
.doc{display:grid;grid-template-columns:200px minmax(0,1fr);gap:64px;padding-top:8px;padding-bottom:120px}
.toc{position:sticky;top:96px;align-self:start;font-size:14px}
.toc a{display:block;padding:7px 0 7px 14px;color:var(--text-2);border-left:2px solid var(--line);transition:color .15s,border-color .15s}
.toc a:hover{color:var(--text);border-left-color:var(--accent)}
.doc-body{max-width:760px}
.doc-body h2{font-size:22px;letter-spacing:.04em;margin:52px 0 14px;scroll-margin-top:88px}
.doc-body h2:first-of-type{margin-top:40px}
.doc-body h3{font-size:17px;margin:26px 0 6px}
.doc-body p,.doc-body li{font-size:16px;line-height:1.9;color:#3b404b}
.doc-body p+p{margin-top:12px}
.doc-body ol,.doc-body ul{padding-left:1.5em;margin:10px 0}
.doc-body li+li{margin-top:6px}
.doc-body strong{color:var(--text);font-weight:600}
.doc-body a{color:var(--accent)}
.doc-body a:hover{text-decoration:underline}
.doc-intro{background:var(--bg-soft);border-radius:14px;padding:24px 28px}
.doc-intro p+p{margin-top:10px}
.doc-contact{margin-top:12px;border-left:3px solid var(--accent);padding:4px 0 4px 18px}
.doc-contact p+p{margin-top:2px}

@media (max-width:900px){
  .hero-in{grid-template-columns:1fr;gap:24px;min-height:0;padding-top:32px;padding-bottom:56px}
  .hero-art{order:-1}
  .hero-art svg{max-width:380px;margin:0}
  .two{grid-template-columns:1fr;gap:28px}
  .cards{grid-template-columns:1fr;gap:16px;margin-top:32px}
  .doc{grid-template-columns:1fr;gap:0}
  .toc{display:none}
}
@media (max-width:640px){
  .wrap{padding-left:16px;padding-right:16px}
  .nav{display:none}
  .sec{padding:72px 0}
  .hero + .sec{padding-top:24px}
  .sec-head h2{font-size:28px}
  .lead{font-size:16px}
  .eyebrow{font-size:11px;letter-spacing:.1em}
  .hero-art svg{max-width:280px}
  .aurora .a1{width:420px;height:420px;right:-160px;top:-120px}
  .aurora .a2{width:380px;height:380px;right:60px;top:160px}
  .aurora .a3{width:360px;height:360px;right:-140px;top:300px}
  .aurora .a4{width:340px;height:340px;left:-160px;top:-100px}
  .info>div{grid-template-columns:1fr;gap:2px;padding:16px 0}
  .card{padding:28px 22px 30px}
  .doc-hero{padding-top:120px;padding-bottom:40px}
  .doc-title{font-size:32px}
  .doc-meta span{display:block}
  .doc-meta span+span{margin-left:0}
  .doc-intro{padding:18px 18px}
  .foot-in{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .aurora i{animation:none}
  .hero-art .loop{animation:none;stroke-dashoffset:0}
  .hero-art .glow{animation:none;opacity:.5}
  .hero-art .dot{display:none}
}