/* roulang page: index */
:root{
  --grad-brand:linear-gradient(120deg,#7C3AED 0%,#A855F7 42%,#FF4D8D 100%);
  --brand-600:#6C2BD9;
  --brand-500:#8B5CF6;
  --brand-100:#EFE8FE;
  --accent-mint:#2EE6B0;
  --accent-coral:#FF6B57;
  --accent-sun:#FFB020;
  --bg:#F6F4FB;
  --surface:#FFFFFF;
  --surface-2:#EFEBFA;
  --line:#E4DFF3;
  --ink:#14102B;
  --ink-2:#4A4566;
  --ink-3:#857FA0;
  --stage:#150F2E;
  --stage-ink:#F3EFFF;
  --stage-ink-2:#A79FC9;
  --sh-1:0 2px 8px rgba(20,16,43,.05);
  --sh-2:0 12px 32px -12px rgba(108,43,217,.18);
  --sh-3:0 28px 64px -24px rgba(108,43,217,.32);
  --r-lg:28px;
  --r-md:20px;
  --r-sm:16px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei UI","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Outfit","Inter","SF Pro Display",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand-600);text-decoration:none;transition:color .22s var(--ease);}
button,input{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.02em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
time{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:8px;}
::selection{background:var(--brand-100);color:var(--brand-600);}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:72px 0;}
.section-tight{padding:48px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap;}
.section-head h2{font-size:32px;}
.section-sub{margin-top:8px;font-size:14px;color:var(--ink-3);}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600);}
.link-more:hover{color:#FF4D8D;}
.link-more svg{transition:transform .22s var(--ease);}
.link-more:hover svg{transform:translateX(3px);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:999px;cursor:pointer;
  font-size:15px;font-weight:600;height:48px;padding:0 24px;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),background-position .4s var(--ease),border-color .24s var(--ease),color .24s var(--ease),background-color .24s var(--ease);
  white-space:nowrap;text-align:center;
}
.btn-primary{background-image:var(--grad-brand);background-size:180% 100%;background-position:0% 0;color:#fff;box-shadow:0 10px 24px -14px rgba(124,58,237,.95);}
.btn-primary:hover{background-position:100% 0;transform:translateY(-2px);box-shadow:0 8px 24px rgba(124,58,237,.35);color:#fff;}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-600);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost:active{transform:scale(.98);}
.btn-soft{background:var(--brand-100);color:var(--brand-600);}
.btn-soft:hover{background-image:var(--grad-brand);background-size:180% 100%;color:#fff;transform:translateY(-2px);}
.btn-light{background:transparent;border-color:rgba(255,255,255,.34);color:#fff;}
.btn-light:hover{background:var(--accent-mint);border-color:var(--accent-mint);color:#0B3527;transform:translateY(-2px);}
.btn-solid-white{background:#fff;color:var(--brand-600);}
.btn-solid-white:hover{transform:translateY(-2px);box-shadow:0 12px 28px -12px rgba(20,16,43,.5);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-lg{height:54px;padding:0 30px;font-size:16px;}
.btn:disabled,.btn.is-loading{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}

/* ============ 徽章 / 标签 ============ */
.pill{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:999px;background:var(--brand-100);color:var(--brand-600);
  font-size:12px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
}
.pill-mint{background:rgba(46,230,176,.14);color:#0E7A5C;}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:50;padding:14px 0;}
.nav-panel{
  position:relative;
  background:var(--surface);border:1px solid var(--line);border-radius:24px;
  box-shadow:var(--sh-1);padding:12px 14px;
  display:flex;align-items:center;gap:14px;
  transition:padding .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-compact .nav-panel{padding:8px 14px;box-shadow:var(--sh-2);}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:40px;height:40px;border-radius:13px;background-image:var(--grad-brand);
  display:grid;place-items:center;color:#fff;
  box-shadow:0 8px 18px -8px rgba(124,58,237,.85);
  transition:transform .24s var(--ease);
}
.brand:hover .brand-mark{transform:rotate(-6deg) scale(1.04);}
.brand-text{display:flex;flex-direction:column;line-height:1.16;}
.brand-text b{font-size:15px;font-weight:800;letter-spacing:-.01em;}
.brand-text span{font-size:11px;color:var(--ink-3);letter-spacing:.16em;}
.nav-links{display:flex;align-items:center;justify-content:center;gap:8px;flex:1 1 auto;}
.nav-item{
  display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:16px;
  background:var(--surface-2);color:var(--ink-2);font-size:14px;font-weight:600;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.nav-item svg{flex:0 0 auto;}
.nav-item:hover{background-image:var(--grad-brand);background-size:160% 100%;color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px -14px rgba(124,58,237,.9);}
.nav-item.is-active{background-image:var(--grad-brand);background-size:160% 100%;color:#fff;box-shadow:0 12px 24px -14px rgba(124,58,237,.9);}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;background:var(--surface-2);
  border:1px solid transparent;align-items:center;justify-content:center;cursor:pointer;color:var(--ink);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-toggle:hover{background:var(--brand-100);color:var(--brand-600);}
.nav-drawer-cta{display:none;}

/* ============ Hero ============ */
.hero{padding:40px 0 0;}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:32px;align-items:center;}
.hero-copy{grid-column:span 6;}
.hero-cover{grid-column:span 6;}
.hero h1{font-size:46px;font-weight:800;line-height:1.15;letter-spacing:-.02em;}
.hero-sub{margin-top:16px;font-size:19px;color:var(--ink-2);line-height:1.7;}
.hero-actions{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap;}
.hero-note{margin-top:22px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-3);}
.hero-note svg{color:var(--accent-mint);flex:0 0 auto;}

.cover-card{
  position:relative;border-radius:28px;overflow:hidden;min-height:380px;
  background:#2A1B57;box-shadow:var(--sh-3);
}
.cover-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.cover-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(140deg,rgba(124,58,237,.55) 0%,rgba(255,77,141,.28) 45%,rgba(21,15,46,.86) 100%);
}
.cover-badge{
  position:absolute;z-index:2;display:inline-flex;align-items:center;gap:8px;
  padding:8px 15px;border-radius:999px;background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.35);color:#fff;font-size:13px;font-weight:600;
  backdrop-filter:blur(6px);
}
.cover-badge--live{left:22px;bottom:22px;}
.cover-badge--heat{right:22px;bottom:22px;color:var(--accent-mint);}
.cover-title{position:absolute;left:22px;top:22px;z-index:2;max-width:70%;color:#fff;}
.cover-title strong{display:block;font-size:20px;font-weight:700;line-height:1.4;text-shadow:0 2px 12px rgba(21,15,46,.6);}
.cover-title span{display:block;margin-top:4px;font-size:13px;color:rgba(255,255,255,.82);}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--accent-coral);box-shadow:0 0 0 4px rgba(255,107,87,.25);animation:pulse 1.8s infinite;}
@keyframes pulse{0%,100%{box-shadow:0 0 0 4px rgba(255,107,87,.25);}50%{box-shadow:0 0 0 8px rgba(255,107,87,0);}}

/* ============ 倒计时 ============ */
.countdown-section{padding:36px 0 0;}
.countdown-card{
  background:var(--stage);border-radius:24px;padding:20px 26px;
  display:flex;align-items:center;gap:24px;color:var(--stage-ink);box-shadow:var(--sh-2);
}
.cd-note{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--stage-ink-2);flex:0 0 auto;white-space:nowrap;}
.cd-blocks{display:flex;align-items:stretch;flex:1 1 auto;justify-content:center;}
.cd-block{flex:1 1 0;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:2px 12px;border-left:1px solid rgba(255,255,255,.12);}
.cd-block:first-child{border-left:0;}
.cd-num{font-family:var(--font-num);font-size:34px;font-weight:800;line-height:1.1;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:.02em;}
.cd-label{font-size:12px;color:var(--stage-ink-2);letter-spacing:.06em;}

/* ============ 看点列表 ============ */
.highlight-list{border-top:1px solid var(--line);}
.highlight-row{
  position:relative;display:flex;align-items:center;gap:24px;
  padding:26px 10px;border-bottom:1px solid var(--line);
  transition:transform .24s var(--ease);
}
.highlight-row::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:4px;border-radius:4px;
  background-image:var(--grad-brand);opacity:0;transition:opacity .24s var(--ease);
}
.highlight-row:hover{transform:translateX(4px);}
.highlight-row:hover::before{opacity:1;}
.highlight-num{
  flex:0 0 auto;min-width:74px;font-family:var(--font-num);font-size:44px;font-weight:800;line-height:1;
  background-image:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.highlight-icon{
  flex:0 0 auto;width:54px;height:54px;border-radius:16px;background:var(--surface-2);
  display:grid;place-items:center;color:var(--brand-600);
  transition:background .24s var(--ease),color .24s var(--ease);
}
.highlight-row:hover .highlight-icon{background-image:var(--grad-brand);color:#fff;}
.highlight-body h3{font-size:19px;font-weight:600;}
.highlight-body p{margin-top:5px;font-size:14px;color:var(--ink-3);line-height:1.7;}

/* ============ 订阅 ============ */
.subscribe-card{
  background-image:var(--grad-brand);border-radius:28px;padding:42px;
  display:grid;grid-template-columns:repeat(12,1fr);gap:30px;align-items:center;
  color:#fff;box-shadow:var(--sh-3);
}
.sub-copy{grid-column:span 6;}
.sub-copy h2{font-size:28px;color:#fff;}
.sub-copy p{margin-top:12px;font-size:15px;line-height:1.75;color:rgba(255,255,255,.9);}
.sub-form{grid-column:span 6;}
.form-row{display:flex;gap:12px;}
.form-input{
  flex:1 1 auto;min-width:0;height:48px;border-radius:14px;border:1px solid var(--line);
  background:#fff;padding:0 16px;font-size:15px;color:var(--ink);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.form-input::placeholder{color:var(--ink-3);}
.form-input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(139,92,246,.22);}
.form-input.has-error{border-color:var(--accent-coral);box-shadow:0 0 0 3px rgba(255,107,87,.18);}
.form-hint{margin-top:10px;font-size:12.5px;color:rgba(255,255,255,.82);}
.form-msg{margin-top:12px;font-size:13.5px;padding:9px 14px;border-radius:12px;display:none;}
.form-msg.is-ok{display:block;background:rgba(46,230,176,.16);border:1px solid var(--accent-mint);color:#CFFBEE;}
.form-msg.is-err{display:block;background:rgba(255,107,87,.16);border:1px solid var(--accent-coral);color:#FFE1DB;}
.chip-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;padding:8px 15px;border-radius:999px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);color:#fff;
  font-size:13px;font-weight:600;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.chip:hover{background:rgba(255,255,255,.3);transform:translateY(-2px);}
.chip.is-on{background:#fff;color:var(--brand-600);border-color:#fff;}

/* ============ 资讯列表 ============ */
.news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.news-card{
  background:var(--surface);border-radius:20px;box-shadow:var(--sh-1);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.05);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.news-title{
  font-size:18px;font-weight:600;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-title a{color:var(--ink);}
.news-title a:hover{color:var(--brand-600);}
.news-excerpt{
  font-size:14px;color:var(--ink-3);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:10px;font-size:13px;color:var(--ink-3);}
.news-card--lead{grid-column:span 2;flex-direction:row;}
.news-card--lead .news-thumb{flex:0 0 41.6%;aspect-ratio:auto;min-height:290px;}
.news-card--lead .news-body{padding:30px 34px;gap:14px;}
.news-card--lead .news-title{font-size:24px;}
.news-card--lead .news-excerpt{-webkit-line-clamp:3;font-size:15px;}
.empty-state{
  border:1.5px dashed var(--line);border-radius:20px;background:var(--surface);
  padding:56px 24px;text-align:center;
}
.empty-state svg{color:var(--brand-500);margin:0 auto 14px;}
.empty-state strong{display:block;font-size:17px;font-weight:600;}
.empty-state span{display:block;margin-top:6px;font-size:14px;color:var(--ink-3);}

/* ============ 回放 ============ */
.replay-track{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.replay-card{
  background:var(--surface);border-radius:20px;box-shadow:var(--sh-1);overflow:hidden;
  display:flex;flex-direction:column;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.replay-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.replay-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);}
.replay-cover img{width:100%;height:100%;object-fit:cover;transition:transform .45s var(--ease);}
.replay-card:hover .replay-cover img{transform:scale(1.05);}
.duration{
  position:absolute;right:12px;bottom:12px;padding:4px 11px;border-radius:999px;
  background:rgba(21,15,46,.8);color:#fff;font-size:12px;font-weight:600;
  font-variant-numeric:tabular-nums;
}
.replay-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto;}
.replay-body h3{font-size:16.5px;font-weight:600;line-height:1.5;}
.replay-body h3 a{color:var(--ink);}
.replay-body h3 a:hover{color:var(--brand-600);}
.replay-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:8px;font-size:13px;color:var(--ink-3);}

/* ============ FAQ ============ */
.faq-card{background:var(--surface);border-radius:20px;box-shadow:var(--sh-1);overflow:hidden;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  position:relative;list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:21px 24px;font-size:16px;font-weight:600;color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:4px;border-radius:4px;
  background-image:var(--grad-brand);opacity:0;transition:opacity .22s var(--ease);
}
.faq-item[open] summary{color:var(--brand-600);}
.faq-item[open] summary::before{opacity:1;}
.faq-item summary:hover{color:var(--brand-600);}
.faq-icon{flex:0 0 auto;color:var(--ink-3);transition:transform .24s var(--ease);}
.faq-item[open] .faq-icon{transform:rotate(90deg);color:var(--brand-600);}
.faq-a{padding:0 24px 22px;font-size:15px;color:var(--ink-2);line-height:1.85;}
.faq-a p+p{margin-top:10px;}

/* ============ CTA ============ */
.cta-card{
  background-image:var(--grad-brand);border-radius:28px;padding:46px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  color:#fff;box-shadow:var(--sh-3);
}
.cta-card h2{font-size:30px;color:#fff;}
.cta-card p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.9);max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* ============ 页脚 ============ */
.site-footer{margin-top:80px;background:var(--stage);color:var(--stage-ink-2);position:relative;padding:64px 0 0;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background-image:var(--grad-brand);}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-brand-text{display:flex;flex-direction:column;line-height:1.16;}
.footer-brand-text b{color:var(--stage-ink);font-size:15px;font-weight:800;}
.footer-brand-text span{font-size:11px;letter-spacing:.16em;color:var(--stage-ink-2);}
.footer-desc{font-size:13.5px;line-height:1.8;max-width:320px;}
.footer-qr{
  margin-top:18px;display:inline-flex;align-items:center;gap:10px;padding:10px 14px;
  border-radius:14px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
  font-size:12.5px;color:var(--stage-ink-2);
}
.footer-title{color:var(--stage-ink);font-size:15px;font-weight:700;margin-bottom:14px;}
.footer-links li{margin-bottom:2px;}
.footer-links a{display:inline-block;color:var(--stage-ink-2);font-size:14px;padding:5px 0;transition:color .2s var(--ease),transform .2s var(--ease);}
.footer-links a:hover{color:var(--accent-mint);transform:translateX(2px);}
.footer-contact p{font-size:14px;margin-bottom:8px;}
.footer-contact a{color:var(--stage-ink-2);}
.footer-contact a:hover{color:var(--accent-mint);}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;
}
.to-top{
  display:inline-flex;align-items:center;gap:7px;height:38px;padding:0 18px;border-radius:999px;
  background:transparent;border:1px solid rgba(255,255,255,.24);color:var(--stage-ink);font-size:13px;
  cursor:pointer;transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),border-color .2s var(--ease);
}
.to-top:hover{background:var(--accent-mint);border-color:var(--accent-mint);color:#0B3527;transform:translateY(-2px);}

/* ============ 入场动效 ============ */
.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.js .reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .js .reveal{opacity:1;transform:none;transition:none;}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .hero h1{font-size:40px;}
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr;gap:30px;}
}
@media (max-width:1023px){
  .section{padding:56px 0;}
  .nav-panel{position:relative;}
  .nav-toggle{display:inline-flex;}
  .nav-links{display:none;}
  .nav-links.is-open{
    display:grid;grid-template-columns:1fr 1fr;gap:10px;
    position:absolute;top:calc(100% + 10px);left:0;right:0;z-index:60;
    padding:14px;background:var(--surface);border:1px solid var(--line);
    border-radius:20px;box-shadow:var(--sh-2);
  }
  .nav-links.is-open .nav-item{width:100%;justify-content:flex-start;padding:13px 15px;}
  .nav-drawer-cta{display:inline-flex;margin-top:12px;width:100%;grid-column:1 / -1;}
  .nav-actions .btn{display:none;}
  .hero{padding-top:28px;}
  .hero-grid{gap:26px;}
  .hero-copy,.hero-cover{grid-column:span 12;}
  .hero-cover{order:-1;}
  .hero h1{font-size:36px;}
  .hero-sub{font-size:17px;}
  .cover-card{min-height:300px;}
  .highlight-num{font-size:38px;min-width:64px;}
  .sub-copy,.sub-form{grid-column:span 12;}
  .subscribe-card{padding:32px;}
  .cta-card{flex-direction:column;align-items:flex-start;padding:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .news-card--lead{flex-direction:column;}
  .news-card--lead .news-thumb{flex:none;aspect-ratio:16/9;min-height:0;}
  .news-card--lead .news-body{padding:24px;}
  .news-card--lead .news-title{font-size:21px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .section-head h2{font-size:24px;}
  .hero h1{font-size:32px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{flex:1 1 auto;}
  .cover-card{min-height:250px;border-radius:22px;}
  .cover-title{max-width:82%;}
  .cover-title strong{font-size:17px;}
  .countdown-card{flex-wrap:wrap;gap:16px;padding:18px;border-radius:20px;}
  .cd-blocks{order:3;width:100%;}
  .cd-num{font-size:24px;}
  .cd-block{padding:0 6px;}
  .cd-note{font-size:13px;}
  .highlight-row{gap:16px;padding:20px 6px;}
  .highlight-num{font-size:32px;min-width:52px;}
  .highlight-icon{width:46px;height:46px;border-radius:14px;}
  .highlight-body h3{font-size:17px;}
  .subscribe-card{padding:26px;border-radius:22px;}
  .sub-copy h2{font-size:23px;}
  .form-row{flex-direction:column;}
  .form-row .btn{width:100%;height:48px;}
  .news-list{grid-template-columns:1fr;}
  .news-card--lead{grid-column:span 1;}
  .replay-track{
    display:flex;gap:16px;overflow-x:auto;padding:4px 8px 10px 0;
    scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
    scrollbar-width:none;
  }
  .replay-track::-webkit-scrollbar{display:none;}
  .replay-card{flex:0 0 84%;scroll-snap-align:start;}
  .faq-item summary{padding:19px 18px;}
  .faq-a{padding:0 18px 20px;}
  .cta-card{padding:28px;border-radius:22px;}
  .cta-card h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{margin-top:56px;padding-top:48px;}
  .footer-bottom{justify-content:center;text-align:center;}
}
@media (max-width:479px){
  body{font-size:15.5px;}
  .nav-links.is-open{grid-template-columns:1fr;}
  .hero h1{font-size:28px;}
  .news-card,.replay-card,.faq-card,.empty-state{border-radius:18px;}
  .btn{min-height:48px;}
  .cover-badge{font-size:12px;padding:7px 12px;}
  .cover-badge--live{left:16px;bottom:16px;}
  .cover-badge--heat{right:16px;bottom:16px;}
}

/* roulang page: article */
:root{
  --grad-brand:linear-gradient(120deg,#7C3AED 0%,#A855F7 42%,#FF4D8D 100%);
  --brand-600:#6C2BD9;--brand-500:#8B5CF6;--brand-100:#EFE8FE;
  --accent-mint:#2EE6B0;--accent-coral:#FF6B57;--accent-sun:#FFB020;
  --bg:#F6F4FB;--surface:#FFFFFF;--surface-2:#EFEBFA;--line:#E4DFF3;
  --ink:#14102B;--ink-2:#4A4566;--ink-3:#857FA0;
  --stage:#150F2E;--stage-ink:#F3EFFF;--stage-ink-2:#A79FC9;
  --sh-1:0 2px 8px rgba(20,16,43,.05);
  --sh-2:0 12px 32px -12px rgba(108,43,217,.18);
  --sh-3:0 28px 64px -24px rgba(108,43,217,.32);
  --r-xl:28px;--r-lg:24px;--r-md:20px;--r-sm:16px;--r-xs:14px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei UI","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Outfit","Inter","SF Pro Display",system-ui,sans-serif;
  --tr:220ms cubic-bezier(.2,.7,.3,1);
  --gap-block:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-sans);font-size:16.5px;line-height:1.8;letter-spacing:0}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-600);text-decoration:none;text-underline-offset:2px;transition:color var(--tr)}
a:hover{color:#4E1FA8}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.3;letter-spacing:-.01em}
p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.1em;padding-left:1.25em}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.container-wide{max-width:1320px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:50;padding:14px 0 0;transition:padding var(--tr)}
.nav-panel{display:flex;align-items:center;gap:18px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:12px 14px;transition:box-shadow var(--tr),padding var(--tr)}
.site-header.is-tight .nav-panel{padding:8px 14px;box-shadow:var(--sh-2)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{width:40px;height:40px;border-radius:var(--r-xs);background:var(--grad-brand);color:#fff;display:grid;place-items:center;flex:0 0 auto;box-shadow:0 8px 20px -10px rgba(124,58,237,.7)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:17px;font-weight:800;letter-spacing:-.02em}
.brand-text span{font-size:11px;color:var(--ink-3);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-item{display:inline-flex;align-items:center;gap:7px;background:var(--surface-2);border:1px solid transparent;border-radius:var(--r-sm);padding:10px 14px;font-size:14px;font-weight:600;color:var(--ink-2);transition:all var(--tr);white-space:nowrap}
.nav-item svg{flex:0 0 auto;opacity:.85}
.nav-item:hover{background:var(--grad-brand);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px -12px rgba(124,58,237,.75)}
.nav-item.is-active{background:var(--grad-brand);color:#fff;box-shadow:0 10px 22px -12px rgba(124,58,237,.75)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:12px}
.nav-drawer-cta{display:none}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-xs);border:1px solid var(--line);background:var(--surface-2);color:var(--ink);align-items:center;justify-content:center;transition:all var(--tr)}
.nav-toggle:hover{background:var(--grad-brand);color:#fff;border-color:transparent}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 24px;border-radius:999px;border:1px solid transparent;font-size:15px;font-weight:600;letter-spacing:.01em;transition:all var(--tr);background:transparent;line-height:1.2}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 10px 26px -14px rgba(124,58,237,.85)}
.btn-primary:hover{color:#fff;transform:translateY(-2px);background-size:118% 100%;box-shadow:0 8px 24px rgba(124,58,237,.35)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{border-color:var(--line);background:var(--surface);color:var(--ink-2)}
.btn-ghost:hover{color:var(--brand-600);border-color:var(--brand-500);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-ghost:active{transform:scale(.98)}
.btn-sm{min-height:40px;padding:9px 18px;font-size:13.5px}
.btn:disabled,.btn[disabled]{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}

/* ---------- 标签 / 徽章 ---------- */
.chip{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;background:var(--brand-100);color:var(--brand-600);font-size:12.5px;font-weight:600;letter-spacing:.02em;border:1px solid transparent}
.chip:hover{color:var(--brand-600);border-color:var(--brand-500)}
.chip.is-solid{background:var(--grad-brand);color:#fff}
.chip.is-solid:hover{color:#fff}
.chip-row{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- 面包屑 ---------- */
.crumbs{margin:26px 0 18px;font-size:13px;color:var(--ink-3)}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:0}
.crumbs li{display:inline-flex;align-items:center;gap:8px}
.crumbs li::after{content:"";width:6px;height:6px;border-top:1.5px solid var(--ink-3);border-right:1.5px solid var(--ink-3);transform:rotate(45deg);opacity:.6}
.crumbs li:last-child::after{display:none}
.crumbs a{color:var(--ink-3)}
.crumbs a:hover{color:var(--brand-600)}
.crumbs [aria-current="page"]{color:var(--ink);font-weight:600}

/* ---------- 封面 ---------- */
.cover-card{width:100%;aspect-ratio:21/9;border-radius:var(--r-xl);overflow:hidden;background:var(--stage);background-image:linear-gradient(120deg,rgba(21,15,46,.86),rgba(108,43,217,.55) 55%,rgba(255,77,141,.42)),url("/assets/images/backpic/back-2.png");background-size:cover;background-position:center;box-shadow:var(--sh-3);position:relative}
.cover-card::after{content:"";position:absolute;inset:auto 0 0 0;height:44%;background:linear-gradient(to top,rgba(21,15,46,.72),transparent)}
.cover-badge{position:absolute;left:22px;bottom:20px;z-index:2;display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.4);color:#fff;font-size:12.5px;font-weight:600;backdrop-filter:blur(6px)}

/* ---------- 文章头卡 ---------- */
.article-head{margin:-46px auto 0;position:relative;z-index:3;max-width:860px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);box-shadow:var(--sh-2);padding:34px 36px 30px}
.article-head h1{font-size:46px;font-weight:800;letter-spacing:-.02em;line-height:1.15;margin:14px 0 16px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--ink-3)}
.meta-badge{display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;background:var(--surface-2);border:1px solid var(--line);color:var(--ink-2);font-size:12.5px;font-weight:600}
.meta-badge.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
.meta-badge svg{opacity:.8}

/* ---------- 正文 ---------- */
.article-main{padding-top:40px}
.article-body{max-width:800px;margin:0 auto;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);box-shadow:var(--sh-1);padding:40px 44px;font-size:17.5px;line-height:1.9;color:var(--ink-2)}
.article-body>h2{position:relative;margin:1.7em 0 .7em;padding-left:16px;font-size:30px;font-weight:700;color:var(--ink);line-height:1.32}
.article-body>h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:4px;background:var(--grad-brand)}
.article-body>h2:first-child{margin-top:0}
.article-body h3{margin:1.4em 0 .5em;font-size:21px;font-weight:600;color:var(--ink)}
.article-body p{margin:0 0 1.2em}
.article-body strong{color:var(--ink)}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px}
.article-body a:hover{color:#4E1FA8}
.article-body ul,.article-body ol{padding-left:1.3em;margin:0 0 1.2em}
.article-body li{margin:.4em 0}
.article-body ul>li::marker{color:var(--brand-500)}
.article-body ol>li::marker{color:var(--brand-500);font-weight:700}
.article-body blockquote{margin:1.6em 0;padding:18px 22px;background:var(--brand-100);border-left:4px solid;border-image:var(--grad-brand) 1;border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--ink-2)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:1.4em 0 .6em;box-shadow:var(--sh-1)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{margin-top:8px;font-size:13px;color:var(--ink-3);line-height:1.6}
.article-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;display:block;overflow-x:auto;white-space:nowrap}
.article-body thead th{background:var(--surface-2);color:var(--ink);font-weight:700}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body code{background:var(--surface-2);border-radius:8px;padding:2px 7px;font-size:.92em;color:var(--brand-600)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}

/* ---------- 文末区块 ---------- */
.after-body{max-width:800px;margin:0 auto;padding-top:34px}
.block-label{font-size:13px;font-weight:700;color:var(--ink-3);letter-spacing:.08em;margin-bottom:14px}
.share-row{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}

.pn-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:40px}
.pn-card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);padding:20px 22px;transition:all var(--tr)}
.pn-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.pn-card span{display:block;font-size:12.5px;color:var(--ink-3);margin-bottom:8px}
.pn-card b{display:block;font-size:16px;font-weight:600;color:var(--ink);line-height:1.5}
.pn-card.is-empty{background:var(--surface-2);border-style:dashed;box-shadow:none;color:var(--ink-3)}
.pn-card.is-empty b{color:var(--ink-3);font-weight:500}
.pn-card.is-empty:hover{transform:none;box-shadow:none}

.related{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:40px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;transition:all var(--tr);display:flex;flex-direction:column}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.card-cover{aspect-ratio:16/9;background:var(--surface-2);overflow:hidden;position:relative}
.card-cover img{width:100%;height:100%;object-fit:cover}
.card-cover::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(21,15,46,.28));pointer-events:none}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;gap:10px}
.card h3{font-size:17.5px;font-weight:600;color:var(--ink);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card h3 a{color:inherit}
.card h3 a:hover{color:var(--brand-600)}
.card p{font-size:14.5px;line-height:1.7;color:var(--ink-3);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12.5px;color:var(--ink-3)}
.card-link{font-weight:600;color:var(--brand-600);display:inline-flex;align-items:center;gap:5px}

.back-row{display:flex;flex-wrap:wrap;gap:12px;padding-bottom:8px}

/* ---------- FAQ ---------- */
.faq-wrap{margin-top:72px}
.faq-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden}
.faq-item{border-top:1px solid var(--line)}
.faq-item:first-child{border-top:0}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;background:none;border:0;padding:20px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);transition:color var(--tr),background var(--tr);position:relative}
.faq-q:hover{background:var(--surface-2)}
.faq-q::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:4px;border-radius:0 4px 4px 0;background:var(--grad-brand);opacity:0;transition:opacity var(--tr)}
.faq-item.is-open .faq-q::before{opacity:1}
.faq-icon{flex:0 0 auto;width:26px;height:26px;border-radius:999px;background:var(--surface-2);color:var(--brand-600);display:grid;place-items:center;transition:transform var(--tr),background var(--tr)}
.faq-item.is-open .faq-icon{transform:rotate(90deg);background:var(--brand-100)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms cubic-bezier(.2,.7,.3,1)}
.faq-a-inner{padding:0 24px 22px;font-size:15.5px;line-height:1.85;color:var(--ink-2)}
.faq-a-inner p:last-child{margin-bottom:0}

/* ---------- CTA ---------- */
.cta-card{margin:72px 0;background:var(--stage);border-radius:var(--r-xl);box-shadow:var(--sh-3);padding:44px 46px;display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:center;position:relative;overflow:hidden}
.cta-card::before{content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;background:var(--grad-brand);opacity:.34;filter:blur(6px)}
.cta-card>*{position:relative;z-index:2}
.cta-card h2{color:var(--stage-ink);font-size:30px;font-weight:700;margin-bottom:12px}
.cta-card p{color:var(--stage-ink-2);margin:0;font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.cta-card .btn-ghost{background:transparent;border-color:rgba(255,255,255,.32);color:var(--stage-ink)}
.cta-card .btn-ghost:hover{color:#fff;border-color:var(--accent-mint)}

/* ---------- 空态 ---------- */
.empty-state{max-width:800px;margin:40px auto 0;border:1px dashed var(--line);border-radius:var(--r-md);background:var(--surface);padding:48px 24px;text-align:center;color:var(--ink-3)}
.empty-state .empty-icon{width:56px;height:56px;border-radius:var(--r-sm);background:var(--surface-2);color:var(--brand-500);display:grid;place-items:center;margin:0 auto 16px}
.empty-state b{display:block;font-size:18px;color:var(--ink);font-weight:600;margin-bottom:6px}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:72px;background:var(--stage);color:var(--stage-ink);position:relative;padding:64px 0 26px;border-top:2px solid transparent;border-image:var(--grad-brand) 1}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand-text{display:flex;flex-direction:column;line-height:1.15}
.footer-brand-text b{font-size:17px;font-weight:800;color:#fff}
.footer-brand-text span{font-size:11px;color:var(--stage-ink-2);letter-spacing:.14em}
.footer-desc{font-size:14px;line-height:1.8;color:var(--stage-ink-2);margin:0 0 16px}
.footer-qr{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--stage-ink-2);background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:999px;padding:8px 14px}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin:0 0 16px}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.footer-links a{color:var(--stage-ink-2);font-size:14px;transition:all var(--tr);display:inline-block}
.footer-links a:hover{color:var(--accent-mint);transform:translateX(-2px)}
.footer-contact p{color:var(--stage-ink-2);font-size:14px;margin:0 0 10px}
.footer-contact a{color:var(--stage-ink-2)}
.footer-contact a:hover{color:var(--accent-mint)}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--stage-ink-2)}
.to-top{display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 18px;border-radius:999px;background:transparent;border:1px solid rgba(255,255,255,.24);color:var(--stage-ink-2);font-size:13px;transition:all var(--tr)}
.to-top:hover{color:#fff;border-color:var(--accent-mint);transform:translateY(-2px)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms cubic-bezier(.2,.7,.3,1),transform 520ms cubic-bezier(.2,.7,.3,1)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-head h1{font-size:38px}
  .related{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:1023px){
  .container{padding:0 20px}
  .nav-toggle{display:inline-flex}
  .nav-links{position:absolute;left:16px;right:16px;top:calc(100% + 10px);background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:14px;display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:0;opacity:0;visibility:hidden;transform:translateY(-8px);transition:all 240ms cubic-bezier(.2,.7,.3,1);max-height:70vh;overflow:auto}
  .nav-panel{position:relative}
  .nav-links.is-open{opacity:1;visibility:visible;transform:none}
  .nav-item{justify-content:flex-start;padding:12px 14px}
  .nav-drawer-cta{display:inline-flex;grid-column:1 / -1;width:100%}
  .nav-actions .btn-sm{display:none}
  .article-head{padding:28px 26px;margin-top:-34px}
  .article-head h1{font-size:32px}
  .article-body{padding:30px 26px;font-size:16.5px}
  .cta-card{grid-template-columns:1fr;padding:34px 28px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .related{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  :root{--gap-block:48px}
  .site-header{padding-top:10px}
  .article-head h1{font-size:27px}
  .article-body{font-size:16px;padding:26px 20px;border-radius:var(--r-md)}
  .article-body>h2{font-size:24px}
  .article-body h3{font-size:18px}
  .cover-card{aspect-ratio:16/9;border-radius:var(--r-md)}
  .pn-grid{grid-template-columns:1fr}
  .related{grid-template-columns:1fr}
  .faq-q{padding:18px 18px;min-height:52px}
  .faq-a-inner{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr}
  .cta-card h2{font-size:24px}
  .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .container{padding:0 16px}
  .brand-text b{font-size:15.5px}
  .article-head{padding:22px 18px;border-radius:var(--r-md);margin-top:-26px}
  .article-head h1{font-size:24px}
  .article-body{font-size:15.5px}
  .card,.pn-card,.faq-list{border-radius:18px}
  .btn{width:100%;min-height:48px}
  .share-row .btn,.back-row .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --grad-brand:linear-gradient(120deg,#7C3AED 0%,#A855F7 42%,#FF4D8D 100%);
  --brand-600:#6C2BD9;
  --brand-500:#8B5CF6;
  --brand-100:#EFE8FE;
  --accent-mint:#2EE6B0;
  --accent-coral:#FF6B57;
  --accent-sun:#FFB020;
  --bg:#F6F4FB;
  --surface:#FFFFFF;
  --surface-2:#EFEBFA;
  --line:#E4DFF3;
  --ink:#14102B;
  --ink-2:#4A4566;
  --ink-3:#857FA0;
  --stage:#150F2E;
  --on-stage:#F3EFFF;
  --on-stage-2:#A79FC9;
  --r-xl:28px;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:16px;
  --sh-1:0 2px 8px rgba(20,16,43,.05);
  --sh-2:0 12px 32px -12px rgba(108,43,217,.18);
  --sh-3:0 28px 64px -24px rgba(108,43,217,.32);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei UI","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Outfit","Inter","SF Pro Display",system-ui,sans-serif;
  --tr:220ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 24px;border-radius:999px;
  font-size:14.5px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--tr),box-shadow var(--tr),background-position var(--tr),border-color var(--tr),color var(--tr),background-color var(--tr);
}
.btn-primary{
  color:#fff;
  background-image:var(--grad-brand);
  background-size:160% 100%;
  background-position:0 0;
  box-shadow:0 10px 24px -14px rgba(124,58,237,.75);
}
.btn-primary:hover{
  background-position:100% 0;
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(124,58,237,.35);
}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.32);
  color:var(--on-stage);
}
.btn-ghost:hover{background:rgba(255,255,255,.16);transform:translateY(-2px);border-color:var(--accent-mint)}
.btn-outline{
  background:var(--surface);
  border-color:var(--line);
  color:var(--ink);
}
.btn-outline:hover{border-color:var(--brand-500);color:var(--brand-600);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-sm{min-height:38px;padding:9px 16px;font-size:13px}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  padding:14px 0 10px;
  background:linear-gradient(180deg,var(--bg) 62%,rgba(246,244,251,0));
}
.nav-panel{
  display:flex;align-items:center;gap:16px;
  padding:12px 14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:padding var(--tr),box-shadow var(--tr);
}
.site-header.is-scrolled .nav-panel{padding:8px 14px;box-shadow:var(--sh-2)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:14px;
  display:grid;place-items:center;
  background-image:var(--grad-brand);color:#fff;
  box-shadow:0 10px 22px -12px rgba(124,58,237,.85);
  transition:transform var(--tr);
}
.brand:hover .brand-mark{transform:rotate(-6deg) scale(1.04)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:16px;font-weight:800;letter-spacing:-.01em}
.brand-text span{font-size:11.5px;color:var(--ink-3);letter-spacing:.08em}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:10px 14px;border-radius:var(--r-sm);
  background:var(--surface-2);color:var(--ink-2);
  font-size:13.5px;font-weight:600;white-space:nowrap;
  transition:background-color var(--tr),color var(--tr),transform var(--tr),box-shadow var(--tr),background-image var(--tr);
}
.nav-item svg{flex:0 0 auto}
.nav-item:hover{background-image:var(--grad-brand);background-color:transparent;color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.nav-item.is-active{background-image:var(--grad-brand);background-color:transparent;color:#fff;box-shadow:var(--sh-2)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-drawer-cta{display:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  background:var(--surface-2);color:var(--ink);
  align-items:center;justify-content:center;
  transition:background-color var(--tr),color var(--tr);
}
.nav-toggle:hover{background:var(--brand-100);color:var(--brand-600)}

/* ---------- 分类头部 ---------- */
.cat-hero{padding:18px 0 0}
.cat-hero-card{
  position:relative;overflow:hidden;
  border-radius:var(--r-xl);
  padding:46px 46px 42px;
  color:var(--on-stage);
  background-color:var(--stage);
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  box-shadow:var(--sh-3);
}
.cat-hero-card::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(21,15,46,.94) 0%,rgba(21,15,46,.80) 48%,rgba(124,58,237,.55) 100%);
}
.cat-hero-inner{position:relative;z-index:1;max-width:760px}
.breadcrumb{margin-bottom:20px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--on-stage-2)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"›";color:rgba(167,159,201,.75)}
.breadcrumb a{color:var(--on-stage-2);transition:color var(--tr)}
.breadcrumb a:hover{color:var(--accent-mint)}
.breadcrumb li[aria-current]{color:var(--on-stage);font-weight:600}
.cat-hero-card h1{
  font-size:46px;font-weight:800;letter-spacing:-.02em;line-height:1.15;
  margin-bottom:12px;
}
.cat-hero-sub{font-size:16px;color:rgba(243,239,255,.82);max-width:600px}
.cat-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 17px;border-radius:999px;
  border:1px solid rgba(255,255,255,.26);
  background:rgba(255,255,255,.07);
  color:rgba(243,239,255,.88);
  font-size:13.5px;font-weight:600;
  transition:border-color var(--tr),background-color var(--tr),color var(--tr),transform var(--tr),box-shadow var(--tr);
}
.chip:hover{border-color:var(--accent-mint);background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px)}
.chip.is-current{background-image:var(--grad-brand);border-color:transparent;color:#fff;box-shadow:0 12px 26px -14px rgba(255,77,141,.9);transform:none}

/* ---------- 左窄右宽主区 ---------- */
.cat-body{padding:56px 0 0}
.cat-layout{display:grid;grid-template-columns:4fr 8fr;gap:24px;align-items:start}
.cat-side{position:sticky;top:104px;display:grid;gap:18px}
.side-card{
  background:var(--surface);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-1);
}
.side-title{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--ink-3);margin-bottom:14px}
.side-list{display:grid;gap:4px}
.side-link{
  position:relative;display:flex;align-items:center;
  padding:10px 12px 10px 16px;border-radius:12px;
  font-size:14px;font-weight:600;color:var(--ink-2);
  transition:color var(--tr),background-color var(--tr),transform var(--tr);
}
.side-link::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(0);
  width:4px;height:20px;border-radius:999px;background-image:var(--grad-brand);
  transition:transform var(--tr);
}
.side-link:hover{background:var(--surface-2);color:var(--brand-600);transform:translateX(3px)}
.side-link:hover::before,.side-link.is-current::before{transform:translateY(-50%) scaleY(1)}
.side-link.is-current{background:var(--brand-100);color:var(--brand-600)}
.side-note{
  border-radius:var(--r-md);padding:20px;
  background:var(--stage);color:var(--on-stage-2);
  font-size:13.5px;line-height:1.75;
}
.side-note strong{display:block;color:var(--on-stage);font-size:14.5px;margin-bottom:6px;font-weight:700}
.side-note .side-note-tag{
  display:inline-flex;align-items:center;gap:6px;margin-top:12px;
  padding:6px 12px;border-radius:999px;
  background:rgba(46,230,176,.14);color:var(--accent-mint);
  font-size:12px;font-weight:600;
}

.cat-main{display:grid;gap:20px}
.panel{
  background:var(--surface);border-radius:var(--r-md);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform var(--tr),box-shadow var(--tr);
  scroll-margin-top:110px;
}
.panel:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.panel-head{margin-bottom:16px}
.panel-kicker{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:700;letter-spacing:.1em;
  color:var(--brand-600);background:var(--brand-100);
  padding:5px 12px;border-radius:999px;margin-bottom:12px;
}
.panel h2{
  position:relative;font-size:25px;font-weight:700;line-height:1.35;
  padding-left:16px;letter-spacing:-.01em;
}
.panel h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;
  width:4px;border-radius:999px;background-image:var(--grad-brand);
}
.panel h3{font-size:17px;font-weight:600;margin-bottom:6px}
.panel p{color:var(--ink-2);line-height:1.85}
.panel p+p{margin-top:12px}
.panel .lead{color:var(--ink-2);margin-top:14px}
.panel-figure{margin-top:22px}
.panel-figure img{border-radius:var(--r-md);width:100%;object-fit:cover}
.panel-figure figcaption{margin-top:10px;font-size:13px;color:var(--ink-3)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center;margin-top:18px}

.point-list{display:grid;gap:12px;margin-top:18px}
.point-list li{
  display:flex;gap:14px;align-items:flex-start;
  padding:16px;border-radius:var(--r-sm);
  background:var(--surface-2);
  transition:transform var(--tr),background-color var(--tr);
}
.point-list li:hover{transform:translateX(4px);background:var(--brand-100)}
.point-ico{
  flex:0 0 auto;width:38px;height:38px;border-radius:12px;
  display:grid;place-items:center;
  background:var(--surface);color:var(--brand-600);
  box-shadow:var(--sh-1);
}
.point-list b{display:block;font-size:15px;font-weight:700;margin-bottom:2px}
.point-list span{font-size:14px;color:var(--ink-2);line-height:1.7}

.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.tag{
  display:inline-flex;align-items:center;
  height:28px;padding:0 14px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-600);
  font-size:12.5px;font-weight:600;
  border:1px solid transparent;
  transition:border-color var(--tr),color var(--tr),background-color var(--tr);
}
.tag:hover{border-color:var(--brand-500);color:var(--brand-600);background:#fff}

.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:18px}
.mini-card{
  border:1px solid var(--line);border-radius:var(--r-sm);
  padding:18px;background:var(--surface);
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-100)}
.mini-card b{display:block;font-size:15px;font-weight:700;margin-bottom:6px}
.mini-card p{font-size:14px;color:var(--ink-2);line-height:1.7}

.check-list{display:grid;gap:10px;margin-top:18px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--ink-2);line-height:1.75}
.check-list svg{flex:0 0 auto;margin-top:4px;color:var(--brand-600)}

/* ---------- FAQ ---------- */
.faq-section{padding:64px 0 0}
.section-head{max-width:640px;margin-bottom:26px}
.section-head h2{font-size:32px;font-weight:700;letter-spacing:-.01em;line-height:1.3}
.section-head p{margin-top:10px;color:var(--ink-2)}
.faq-list{
  background:var(--surface);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
}
.faq-item+.faq-item{border-top:1px solid var(--line)}
.faq-q{
  position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px 20px 28px;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);
  transition:color var(--tr),background-color var(--tr);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:4px;border-radius:0 999px 999px 0;
  background-image:var(--grad-brand);opacity:0;transition:opacity var(--tr);
}
.faq-q:hover{background:var(--surface-2)}
.faq-item.is-open .faq-q::before{opacity:1}
.faq-item.is-open .faq-q{color:var(--brand-600)}
.faq-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:10px;
  display:grid;place-items:center;color:var(--brand-600);
  background:var(--brand-100);
  transition:transform var(--tr),background-color var(--tr),color var(--tr);
}
.faq-item.is-open .faq-icon{transform:rotate(90deg);background-image:var(--grad-brand);color:#fff}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows var(--tr)}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a-inner p{padding:0 64px 22px 28px;color:var(--ink-2);font-size:15px;line-height:1.9}
.faq-a-inner p+p{margin-top:-8px;padding-top:0}

/* ---------- CTA ---------- */
.cta-section{padding:64px 0 0}
.cta-card{
  position:relative;overflow:hidden;
  border-radius:var(--r-xl);
  padding:44px;color:#fff;
  background-image:var(--grad-brand);
  box-shadow:var(--sh-3);
  display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:center;
}
.cta-card::after{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.16);
}
.cta-copy{position:relative;z-index:1}
.cta-copy h2{font-size:30px;font-weight:800;letter-spacing:-.01em;line-height:1.3}
.cta-copy p{margin-top:12px;font-size:15.5px;color:rgba(255,255,255,.9);line-height:1.8;max-width:520px}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.cta-actions .btn{min-width:150px}
.btn-white{background:#fff;color:var(--brand-600);border-color:#fff}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 12px 28px -12px rgba(0,0,0,.45)}
.cta-actions .btn-ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.5);color:#fff}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.24);border-color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:72px;
  background:var(--stage);
  color:var(--on-stage-2);
  border-top:2px solid transparent;
  background-image:linear-gradient(var(--stage),var(--stage)),var(--grad-brand);
  background-origin:border-box;
  background-clip:padding-box,border-box;
  padding:52px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{width:38px;height:38px;border-radius:13px}
.footer-brand-text{display:flex;flex-direction:column;line-height:1.15}
.footer-brand-text b{font-size:16px;color:var(--on-stage);font-weight:800}
.footer-brand-text span{font-size:11.5px;color:var(--on-stage-2);letter-spacing:.08em}
.footer-desc{font-size:13.5px;line-height:1.85;color:var(--on-stage-2)}
.footer-qr{
  display:inline-flex;align-items:center;gap:8px;margin-top:16px;
  padding:8px 14px;border-radius:999px;
  background:rgba(255,255,255,.07);font-size:12.5px;color:var(--on-stage-2);
}
.footer-title{font-size:14px;font-weight:700;color:var(--on-stage);margin-bottom:14px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:13.5px;color:var(--on-stage-2);transition:color var(--tr),transform var(--tr)}
.footer-links a:hover{color:var(--accent-mint);transform:translateX(2px)}
.footer-contact p{font-size:13.5px;line-height:1.9;color:var(--on-stage-2)}
.footer-contact a{color:var(--on-stage);transition:color var(--tr)}
.footer-contact a:hover{color:var(--accent-mint)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;border-top:1px solid rgba(255,255,255,.09);
  font-size:13px;color:var(--on-stage-2);
}
.to-top{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 16px;border-radius:999px;
  border:1px solid rgba(255,255,255,.28);color:var(--on-stage);
  background:rgba(255,255,255,.05);font-size:13px;font-weight:600;
  transition:border-color var(--tr),background-color var(--tr),transform var(--tr);
}
.to-top:hover{border-color:var(--accent-mint);background:rgba(46,230,176,.12);transform:translateY(-2px)}

/* ---------- 入场动效 ---------- */
[data-reveal]{opacity:0;transform:translateY(12px);transition:opacity 520ms cubic-bezier(.2,.7,.3,1),transform 520ms cubic-bezier(.2,.7,.3,1)}
[data-reveal].is-visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .cat-layout{grid-template-columns:1fr}
  .cat-side{position:static}
  .cat-hero-card{padding:36px 30px 34px}
  .cat-hero-card h1{font-size:38px}
  .cta-card{grid-template-columns:1fr;gap:24px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:860px){
  .nav-links{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;gap:10px;
    margin-left:0;padding:16px;
    background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-lg);box-shadow:var(--sh-2);
    opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity 240ms cubic-bezier(.2,.7,.3,1),transform 240ms cubic-bezier(.2,.7,.3,1),visibility 240ms;
  }
  .nav-links.is-open{opacity:1;visibility:visible;transform:none}
  .nav-item{justify-content:flex-start;padding:14px 16px;font-size:14.5px}
  .nav-drawer-cta{display:inline-flex;width:100%;margin-top:6px;min-height:48px}
  .nav-toggle{display:inline-flex}
  .nav-actions .btn-primary{display:none}
  .nav-panel{position:relative}
  .site-header{padding:10px 0 8px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .cat-hero-card{padding:30px 20px;border-radius:22px}
  .cat-hero-card h1{font-size:31px}
  .cat-hero-sub{font-size:15px}
  .panel{padding:20px;border-radius:18px}
  .panel h2{font-size:21px}
  .split{grid-template-columns:1fr;gap:18px}
  .mini-grid{grid-template-columns:1fr}
  .section-head h2{font-size:24px}
  .faq-q{padding:18px 18px 18px 20px;font-size:15px}
  .faq-a-inner p{padding:0 20px 20px 20px}
  .cta-card{padding:28px 20px;border-radius:22px}
  .cta-copy h2{font-size:23px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .cta-actions .btn{width:100%;min-height:48px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .site-footer{margin-top:48px}
  .cat-body{padding-top:40px}
  .faq-section,.cta-section{padding-top:48px}
}
@media (max-width:479px){
  .brand-text b{font-size:14.5px}
  .cat-hero-card h1{font-size:28px}
  .cat-chips .chip{font-size:12.5px;padding:8px 14px}
  .point-list li{padding:14px}
  .btn{min-height:48px;width:100%}
  .btn-sm{width:auto;min-height:38px}
  .tag-row .tag{font-size:12px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
  [data-reveal]{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --grad-brand:linear-gradient(120deg,#7C3AED 0%,#A855F7 42%,#FF4D8D 100%);
  --brand-600:#6C2BD9;
  --brand-500:#8B5CF6;
  --brand-100:#EFE8FE;
  --accent-mint:#2EE6B0;
  --accent-coral:#FF6B57;
  --accent-sun:#FFB020;
  --bg:#F6F4FB;
  --surface:#FFFFFF;
  --surface-2:#EFEBFA;
  --line:#E4DFF3;
  --ink:#14102B;
  --ink-2:#4A4566;
  --ink-3:#857FA0;
  --stage:#150F2E;
  --stage-ink:#F3EFFF;
  --stage-ink-2:#A79FC9;
  --sh-1:0 2px 8px rgba(20,16,43,.05);
  --sh-2:0 12px 32px -12px rgba(108,43,217,.18);
  --sh-3:0 28px 64px -24px rgba(108,43,217,.32);
  --r-xl:28px;
  --r-lg:24px;
  --r:20px;
  --r-sm:16px;
  --r-input:14px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei UI","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Outfit","Inter","SF Pro Display",system-ui,sans-serif;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-600);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--brand-500)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section-tight{padding:48px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em}
.section-head p{color:var(--ink-3);font-size:14px;margin-top:6px}
.link-more{font-size:14px;font-weight:600;color:var(--brand-600);white-space:nowrap}
.link-more:hover{color:#FF4D8D}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-weight:600;font-size:15px;line-height:1;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-position .26s var(--ease),border-color .22s var(--ease),color .22s var(--ease),opacity .22s var(--ease);
}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px}
.btn-lg{min-height:54px;padding:0 30px;font-size:16px}
.btn-primary{background:var(--grad-brand);background-size:200% 200%;background-position:0% 50%;color:#fff;box-shadow:0 12px 28px -16px rgba(124,58,237,.75)}
.btn-primary:hover{background-position:8% 50%;color:#fff;transform:translateY(-2px);box-shadow:0 8px 24px rgba(124,58,237,.35)}
.btn-primary:active{transform:scale(.98)}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink-2)}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-600);transform:translateY(-2px);box-shadow:var(--sh-1)}
.btn-ghost:active{transform:scale(.98)}
.btn-light{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.4);color:#fff}
.btn-light:hover{background:rgba(255,255,255,.22);color:#fff;transform:translateY(-2px)}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:50;padding:14px 0;transition:padding .26s var(--ease)}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:12px 14px;
  transition:box-shadow .26s var(--ease),padding .26s var(--ease);
}
.site-header.is-scrolled{padding:8px 0}
.site-header.is-scrolled .nav-panel{box-shadow:var(--sh-2);padding:9px 12px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:14px;color:#fff;
  background:var(--grad-brand);box-shadow:0 8px 18px -10px rgba(124,58,237,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:16px;font-weight:800;letter-spacing:-.01em}
.brand-text span{font-size:11.5px;color:var(--ink-3);letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:10px 14px;border-radius:var(--r-sm);
  background:var(--surface-2);color:var(--ink-2);
  font-size:14px;font-weight:600;
  transition:transform .22s var(--ease),background .22s var(--ease),color .22s var(--ease),box-shadow .22s var(--ease);
}
.nav-item svg{flex:0 0 auto}
.nav-item:hover{background:var(--grad-brand);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px -14px rgba(124,58,237,.9)}
.nav-item.is-active{background:var(--grad-brand);color:#fff;box-shadow:0 10px 22px -14px rgba(124,58,237,.9)}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:8px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:14px;border:1px solid var(--line);
  background:var(--surface-2);color:var(--ink-2);
  transition:background .22s var(--ease),color .22s var(--ease)
}
.nav-toggle:hover{background:var(--brand-100);color:var(--brand-600)}
.nav-drawer-cta{display:none}

/* ---------- crumbs ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);padding-top:34px}
.crumbs a{color:var(--ink-3)}
.crumbs a:hover{color:var(--brand-600)}
.crumbs .sep{color:#C3BCDD}
.crumbs .current{color:var(--ink)}

/* ---------- category hero ---------- */
.cat-hero{padding:18px 0 8px}
.cat-hero h1{font-size:46px;line-height:1.15;font-weight:800;letter-spacing:-.02em;margin-top:16px}
.cat-lead{color:var(--ink-2);font-size:17px;margin-top:12px;max-width:640px}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  height:38px;padding:0 18px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);
  color:var(--ink-2);font-size:14px;font-weight:600;
  transition:transform .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease),background .26s var(--ease),box-shadow .22s var(--ease)
}
.chip:hover{transform:translateY(-2px);border-color:var(--brand-500);color:var(--brand-600)}
.chip.is-active{background:var(--grad-brand);border-color:transparent;color:#fff;box-shadow:0 12px 26px -16px rgba(124,58,237,.9)}

/* ---------- spotlight big card ---------- */
.spotlight{padding:36px 0 8px}
.spotlight-card{
  display:grid;grid-template-columns:repeat(12,1fr);gap:0;
  background:var(--surface);border-radius:var(--r-xl);box-shadow:var(--sh-2);overflow:hidden;
}
.spotlight-media{grid-column:span 6;position:relative;min-height:360px;background:var(--surface-2)}
.spotlight-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.spotlight-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(124,58,237,.55) 0%,rgba(21,15,46,.35) 60%,rgba(21,15,46,.55) 100%);
}
.spotlight-flag{
  position:absolute;left:20px;top:20px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.92);color:var(--brand-600);
  font-size:12.5px;font-weight:700;letter-spacing:.02em
}
.spotlight-body{grid-column:span 6;padding:40px 36px;display:flex;flex-direction:column;justify-content:center;gap:16px}
.spotlight-body h2{font-size:32px;line-height:1.28;font-weight:700;letter-spacing:-.01em}
.spotlight-body p{color:var(--ink-2);font-size:15.5px}
.badge-row{display:flex;flex-wrap:wrap;gap:10px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:999px;
  background:var(--brand-100);border:1px solid #DDD2FA;color:var(--brand-600);
  font-size:12.5px;font-weight:600;letter-spacing:.02em
}
.badge svg{flex:0 0 auto}
.badge .num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-weight:700}
.badge-dark{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.28);color:var(--stage-ink)}
.badge-dark .num{color:var(--accent-mint)}

/* ---------- guide grid ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;align-items:start}
.guide-card{
  background:var(--surface);border-radius:var(--r);box-shadow:var(--sh-1);
  padding:26px;display:flex;flex-direction:column;gap:14px;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease)
}
.guide-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.guide-card h3{font-size:22px;font-weight:600;line-height:1.4}
.guide-card p{color:var(--ink-2);font-size:15px}
.guide-card .tag{align-self:flex-start}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  background:var(--surface-2);border:1px solid var(--line);color:var(--ink-2);
  font-size:12.5px;font-weight:600;letter-spacing:.02em
}
.tag-mint{background:rgba(46,230,176,.14);border-color:rgba(46,230,176,.45);color:#0E8F69}
.tag-sun{background:rgba(255,176,32,.16);border-color:rgba(255,176,32,.4);color:#95630A}
.guide-media{border-radius:var(--r-sm);overflow:hidden;background:var(--surface-2);position:relative;aspect-ratio:16/9}
.guide-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.guide-card:hover .guide-media img{transform:scale(1.03)}
.check-list{display:flex;flex-direction:column;gap:9px;margin-top:2px}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--ink-2);line-height:1.7}
.check-list svg{flex:0 0 auto;margin-top:5px;color:var(--brand-500)}
.card-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}
.card-foot .meta{font-size:13px;color:var(--ink-3)}
.card-foot a{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}

/* ---------- note bar ---------- */
.notebar{
  position:relative;overflow:hidden;
  background:var(--stage);border-radius:var(--r);
  padding:26px 28px;display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  box-shadow:var(--sh-2)
}
.notebar::before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:var(--grad-brand)}
.notebar-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:16px;flex:0 0 auto;
  background:rgba(255,255,255,.1);color:var(--accent-mint)
}
.notebar-text{flex:1 1 320px;min-width:240px}
.notebar-text strong{display:block;color:var(--stage-ink);font-size:18px;font-weight:700}
.notebar-text span{display:block;color:var(--stage-ink-2);font-size:14px;margin-top:4px}

/* ---------- faq ---------- */
.faq-list{background:var(--surface);border-radius:var(--r);box-shadow:var(--sh-1);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:none}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px 20px 28px;font-size:16px;font-weight:600;
  transition:background .22s var(--ease),color .22s var(--ease)
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:4px;border-radius:0 4px 4px 0;
  background:var(--grad-brand);opacity:0;transition:opacity .22s var(--ease)
}
.faq-item summary:hover{background:#FAF8FF}
.faq-item[open] summary{color:var(--brand-600)}
.faq-item[open] summary::before{opacity:1}
.faq-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:999px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--surface-2);color:var(--brand-600);
  transition:transform .24s var(--ease),background .24s var(--ease)
}
.faq-item[open] .faq-icon{transform:rotate(90deg);background:var(--brand-100)}
.faq-answer{padding:0 24px 22px 28px;color:var(--ink-2);font-size:15px;max-width:860px}
.faq-answer p+p{margin-top:12px}

/* ---------- cta ---------- */
.cta-card{
  position:relative;overflow:hidden;
  background:var(--grad-brand);border-radius:var(--r-xl);
  padding:44px 40px;display:grid;grid-template-columns:1.4fr 1fr;gap:28px;align-items:center;
  box-shadow:var(--sh-3)
}
.cta-card::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.16)
}
.cta-card h2{color:#fff;font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.01em;position:relative;z-index:1}
.cta-card p{color:rgba(255,255,255,.9);margin-top:12px;font-size:15.5px;max-width:520px;position:relative;z-index:1}
.cta-actions{display:flex;flex-direction:column;gap:12px;position:relative;z-index:1}
.cta-actions .btn{width:100%}
.back-row{display:flex;justify-content:center;margin-top:26px;font-size:14px}

/* ---------- footer ---------- */
.site-footer{position:relative;background:var(--stage);color:var(--stage-ink-2);margin-top:72px;padding:64px 0 0}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--grad-brand)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand-text{display:flex;flex-direction:column;line-height:1.15}
.footer-brand-text b{color:var(--stage-ink);font-size:16px;font-weight:800}
.footer-brand-text span{font-size:11.5px;color:var(--stage-ink-2);letter-spacing:.14em}
.footer-desc{font-size:14px;color:var(--stage-ink-2);max-width:320px}
.footer-qr{margin-top:16px;display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--stage-ink-2)}
.footer-title{color:var(--stage-ink);font-size:15px;font-weight:700;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:var(--stage-ink-2);font-size:14px;transition:color .22s var(--ease),transform .22s var(--ease);display:inline-block}
.footer-links a:hover{color:var(--accent-mint);transform:translateX(2px)}
.footer-contact p{font-size:14px;color:var(--stage-ink-2);margin-bottom:8px}
.footer-contact a{color:var(--stage-ink-2)}
.footer-contact a:hover{color:var(--accent-mint)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:var(--stage-ink-2);flex-wrap:wrap
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 18px;border-radius:999px;
  background:transparent;border:1px solid rgba(255,255,255,.3);color:var(--stage-ink);
  font-size:13px;font-weight:600;
  transition:border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease)
}
.to-top:hover{border-color:var(--accent-mint);color:var(--accent-mint);transform:translateY(-2px)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .spotlight-body{padding:34px 28px}
}
@media (max-width:1023px){
  .cat-hero h1{font-size:38px}
  .section{padding:56px 0}
  .spotlight-card{grid-template-columns:1fr}
  .spotlight-media{grid-column:span 1;min-height:280px}
  .spotlight-body{grid-column:span 1}
  .cta-card{grid-template-columns:1fr;padding:36px 28px}
  .cta-actions{flex-direction:row;flex-wrap:wrap}
  .cta-actions .btn{width:auto;flex:1 1 200px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .site-header{padding:10px 0}
  .nav-panel{flex-wrap:wrap}
  .nav-toggle{display:inline-flex}
  .nav-actions .btn{display:none}
  .nav-links{
    display:none;width:100%;margin-left:0;order:3;
    grid-template-columns:1fr 1fr;gap:10px;padding-top:12px;
    border-top:1px solid var(--line);margin-top:12px;
  }
  .nav-links.is-open{display:grid;animation:drawer .24s var(--ease)}
  .nav-item{justify-content:flex-start;padding:12px 14px;border-radius:var(--r-sm)}
  .nav-drawer-cta{display:flex;grid-column:1 / -1;width:100%;margin-top:2px}
  @keyframes drawer{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
  .cat-hero h1{font-size:32px}
  .cat-lead{font-size:15.5px}
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px}
  .section-head h2{font-size:24px}
  .spotlight-body{padding:26px 20px}
  .spotlight-body h2{font-size:24px}
  .grid-2{grid-template-columns:1fr;gap:18px}
  .guide-card{padding:18px;border-radius:18px}
  .guide-card h3{font-size:18px}
  .notebar{padding:22px 20px;flex-direction:column;align-items:flex-start}
  .notebar .btn{width:100%}
  .faq-item summary{padding:18px 18px 18px 22px;min-height:52px}
  .faq-answer{padding:0 18px 20px 22px}
  .cta-card h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .cat-hero h1{font-size:28px}
  .brand-text b{font-size:15px}
  .btn{width:100%;min-height:48px}
  .btn-sm{width:auto}
  .chip{height:36px;padding:0 14px;font-size:13px}
  .guide-card{border-radius:18px}
  .nav-item{font-size:13.5px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}