/* roulang page: index */
:root{
  --brand:#6C4CF1;
  --brand-deep:#4A2FD1;
  --accent:#FF5C39;
  --ink:#101014;
  --paper:#F7F6F2;
  --surface:#FFFFFF;
  --line:#E4E1DA;
  --text:#3A3A44;
  --muted:#8A8A94;
  --ok:#12D6A8;
  --err:#E23A3A;
  --disabled:#C9C7C1;
  --r-card:16px;
  --r-img:14px;
  --r-pill:999px;
  --r-btn:12px;
  --sh-1:0 1px 2px rgba(16,16,20,.04),0 8px 24px rgba(16,16,20,.05);
  --sh-2:0 2px 4px rgba(16,16,20,.06),0 18px 40px rgba(16,16,20,.10);
  --ease:cubic-bezier(.2,.7,.2,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  background:var(--paper);
  color:var(--text);
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.25;}
p{margin:0 0 1.4em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(108,76,241,.35);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-pill);
  font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1);padding:14px 28px;font-size:15.5px;}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-secondary{background:#fff;border-color:var(--line);color:var(--ink);padding:14px 28px;font-size:15.5px;}
.btn-secondary:hover{border-color:rgba(108,76,241,.4);color:var(--brand);}
.btn-ghost{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.34);color:#fff;padding:14px 28px;font-size:15.5px;}
.btn-ghost:hover{background:rgba(255,255,255,.2);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;border-radius:var(--r-pill);padding:4px 10px;font-size:12px;font-weight:600;line-height:1.6;}
.badge-brand{background:rgba(108,76,241,.08);color:var(--brand);}
.badge-time{background:#F1F0EC;color:var(--muted);}
.badge-accent{background:rgba(255,92,57,.12);color:var(--accent);}

/* ---------- 顶部倒计时条 ---------- */
.topbar{background:var(--ink);color:#fff;min-height:44px;display:flex;align-items:center;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:44px;padding-top:6px;padding-bottom:6px;}
.topbar-tag{display:inline-flex;align-items:center;gap:8px;font-size:12px;color:rgba(255,255,255,.85);white-space:nowrap;}
.topbar-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(255,92,57,.18);flex:0 0 auto;}
.countdown{display:flex;align-items:center;gap:10px;}
.cd-cell{display:inline-flex;align-items:baseline;gap:4px;}
.cd-cell b{
  font-size:20px;font-weight:800;line-height:1.2;
  font-variant-numeric:tabular-nums;
  background:rgba(255,255,255,.09);border-radius:8px;padding:1px 9px;color:#fff;
}
.cd-cell i{font-size:11px;font-style:normal;color:rgba(255,255,255,.55);}
.topbar-cta{background:var(--brand);color:#fff;border-radius:var(--r-pill);padding:6px 16px;font-size:13px;font-weight:600;transition:background-color .18s var(--ease);}
.topbar-cta:hover{background:var(--brand-deep);}

/* ---------- 品牌行 ---------- */
.brand-bar{background:var(--paper);border-bottom:1px solid var(--line);}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{display:inline-flex;flex:0 0 auto;}
.brand-text{font-size:20px;font-weight:800;letter-spacing:-.02em;color:var(--ink);white-space:nowrap;}
.brand-actions{display:flex;align-items:center;gap:16px;}
.search{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);padding:8px 16px;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);}
.search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(108,76,241,.12);}
.search input{border:0;outline:0;background:transparent;width:190px;font-size:14px;}
.search svg{flex:0 0 auto;color:var(--muted);}
.text-link{font-size:14px;font-weight:600;color:#5A5A66;transition:color .18s var(--ease);}
.text-link:hover{color:var(--brand);}

/* ---------- 频道行 ---------- */
.channel-bar{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:40;transition:box-shadow .28s var(--ease);}
.channel-bar.is-stuck{box-shadow:0 6px 20px rgba(16,16,20,.06);}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:56px;}
.channel-list{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.channel-list::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;display:inline-flex;align-items:center;height:40px;
  padding:0 16px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:600;color:#5A5A66;white-space:nowrap;
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.channel-link:hover{color:var(--brand);background:rgba(108,76,241,.08);}
.channel-link.is-active{color:var(--ink);}
.channel-link.is-active::after{content:"";position:absolute;left:16px;right:16px;bottom:-8px;height:2px;background:var(--brand);border-radius:2px;}
.channel-side{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);white-space:nowrap;}
.channel-side .live{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(18,214,168,.16);}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0 80px;}
.section--surface{background:#fff;}
.section--tight{padding:72px 0 64px;}
.eyebrow{font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--brand);margin:0 0 18px;}
.section-head{max-width:680px;margin-bottom:48px;}
.section-head h2{font-size:clamp(26px,3.2vw,40px);font-weight:700;line-height:1.25;color:var(--ink);}
.section-sub{margin-top:16px;font-size:16.5px;line-height:1.9;color:var(--text);}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}
.text-link--arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand);}
.text-link--arrow svg{transition:transform .18s var(--ease);}
.text-link--arrow:hover svg{transform:translateX(4px);}

/* ---------- Hero ---------- */
.hero{padding:96px 0 80px;position:relative;overflow:hidden;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero h1{font-size:clamp(34px,5vw,58px);font-weight:800;letter-spacing:-.02em;line-height:1.15;color:var(--ink);}
.hero-sub{margin-top:22px;font-size:17px;line-height:1.9;color:var(--text);max-width:560px;}
.hero-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap;}
.hero-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:32px;}
.hero-visual{position:relative;border-radius:var(--r-img);overflow:hidden;aspect-ratio:16/10;box-shadow:var(--sh-2);background:#F1F0EC;}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-visual::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(108,76,241,.08),rgba(16,16,20,0) 60%);}
.hero-visual::before{
  content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:48px 48px;
}

/* ---------- 编号条列 ---------- */
.num-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 56px;}
.num-item{display:flex;gap:22px;padding:28px 0;border-top:1px solid var(--line);}
.num-item .num{
  font-size:28px;font-weight:800;line-height:1.1;color:var(--brand);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;flex:0 0 auto;padding-top:2px;
}
.num-item h3{font-size:19px;font-weight:700;line-height:1.4;margin-bottom:8px;color:var(--ink);}
.num-item p{font-size:15px;line-height:1.85;color:var(--text);margin:0;}

/* ---------- 图墙 ---------- */
.wall{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:190px;gap:16px;}
.wall-item{position:relative;display:block;border-radius:var(--r-img);overflow:hidden;background:#F1F0EC;}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .42s var(--ease);}
.wall-item::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(16,16,20,.05) 35%,rgba(16,16,20,.62));
  transition:background-color .28s var(--ease),opacity .28s var(--ease);
  opacity:.85;
}
.wall-item:hover::after{opacity:1;background:linear-gradient(180deg,rgba(16,16,20,.35) 30%,rgba(16,16,20,.7));}
.wall-item:hover img{transform:scale(1.04);}
.wall-cap{position:absolute;left:16px;right:16px;bottom:14px;z-index:2;color:#fff;font-size:15px;font-weight:600;line-height:1.5;transition:transform .28s var(--ease);}
.wall-item:hover .wall-cap{transform:translateY(-6px);}
.wall-item:nth-child(1){grid-column:1;grid-row:1 / 3;}
.wall-item:nth-child(2){grid-column:2 / 4;grid-row:1;}
.wall-item:nth-child(3){grid-column:4;grid-row:1;}
.wall-item:nth-child(4){grid-column:2;grid-row:2;}
.wall-item:nth-child(5){grid-column:3;grid-row:2;}
.wall-item:nth-child(6){grid-column:4;grid-row:2 / 4;}
.wall-item:nth-child(7){grid-column:1 / 3;grid-row:3;}
.wall-item:nth-child(8){grid-column:3;grid-row:3;}

/* ---------- 数据概况 ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);transition:transform .28s var(--ease),box-shadow .28s var(--ease);}
.stat:hover{transform:translateY(-3px);box-shadow:var(--sh-2);}
.stat b{display:block;font-size:clamp(28px,3.4vw,40px);font-weight:800;color:var(--ink);letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1.1;}
.stat span{display:block;margin-top:10px;font-size:14px;color:var(--muted);line-height:1.7;}

/* ---------- 内容卡片 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(108,76,241,.25);}
.post-card--feature{grid-column:span 2;}
.post-cover{position:relative;display:block;aspect-ratio:16/9;background:#F1F0EC;overflow:hidden;}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .42s var(--ease);}
.post-card:hover .post-cover img{transform:scale(1.04);}
.post-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.post-body h3{font-size:19px;font-weight:700;line-height:1.4;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .18s var(--ease);}
.post-card:hover .post-body h3{color:var(--brand);}
.post-excerpt{font-size:14.5px;line-height:1.8;color:var(--text);margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.post-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;padding-top:6px;}
.post-more{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand);white-space:nowrap;}
.post-more svg{transition:transform .18s var(--ease);}
.post-card:hover .post-more svg{transform:translateX(4px);}

/* ---------- 空态 ---------- */
.empty-state{border:1px dashed var(--line);border-radius:var(--r-card);padding:48px;text-align:center;background:#fff;}
.empty-icon{display:inline-block;width:32px;height:32px;border-radius:10px;background:rgba(108,76,241,.2);margin-bottom:16px;}
.empty-state p{color:var(--muted);margin-bottom:20px;font-size:15px;}

/* ---------- CTA 区块 ---------- */
.cta-block{
  background:var(--ink);border-radius:24px;padding:56px;
  display:grid;grid-template-columns:1fr 420px;gap:48px;align-items:center;color:#fff;
}
.cta-block h2{color:#fff;font-size:clamp(24px,3vw,36px);font-weight:700;line-height:1.3;}
.cta-copy{margin-top:18px;font-size:16px;line-height:1.9;color:rgba(255,255,255,.75);max-width:460px;}
.cta-points{display:flex;flex-direction:column;gap:10px;margin-top:26px;}
.cta-points li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.82);}
.cta-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);flex:0 0 auto;}
.form-card{background:#fff;border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-2);}
.form-card h3{font-size:19px;font-weight:700;color:var(--ink);margin-bottom:20px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:7px;}
.field input,.field select{
  width:100%;height:48px;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 14px;background:#fff;font-size:14.5px;outline:none;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field input:focus,.field select:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(108,76,241,.12);}
.form-note{font-size:12px;line-height:1.7;color:var(--muted);margin:14px 0 0;}
.form-status{font-size:13px;color:var(--ok);margin:10px 0 0;min-height:18px;}

/* ---------- FAQ ---------- */
.faq{max-width:880px;margin:0 auto;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;background:none;border:0;text-align:left;cursor:pointer;
  padding:24px 0;display:flex;align-items:center;justify-content:space-between;gap:20px;
  font-size:18px;font-weight:700;color:var(--ink);line-height:1.5;
}
.faq-q:hover{color:var(--brand);}
.faq-icon{flex:0 0 auto;width:22px;height:22px;position:relative;color:var(--brand);transition:transform .28s var(--ease);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px;}
.faq-icon::before{left:50%;top:3px;bottom:3px;width:2px;transform:translateX(-50%);}
.faq-icon::after{top:50%;left:3px;right:3px;height:2px;transform:translateY(-50%);}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s var(--ease);}
.faq-a > div{overflow:hidden;}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a p{font-size:15.5px;line-height:1.85;color:#5A5A66;margin:0;padding:0 0 24px;max-width:760px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:24px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand-text{color:#fff;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);margin:16px 0 0;max-width:320px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);display:inline-block;transition:color .18s var(--ease),transform .18s var(--ease);}
.footer-links a:hover{color:#fff;transform:translateX(-2px);}
.footer-links span{font-size:14px;color:rgba(255,255,255,.55);}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.10);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 入场动效 ---------- */
.reveal{transition:opacity .42s var(--ease),transform .42s var(--ease);}
.js-ready .reveal{opacity:0;transform:translateY(12px);}
.js-ready .reveal.is-in{opacity:1;transform:none;}

@media (prefers-reduced-motion: reduce){
  *{transition:none !important;animation:none !important;}
  .js-ready .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-grid{grid-template-columns:1fr 1fr;gap:40px;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .post-card--feature{grid-column:span 2;}
  .cta-block{grid-template-columns:1fr 380px;gap:36px;padding:48px 40px;}
}
@media (max-width:1023px){
  .section{padding:72px 0 64px;}
  .num-list{gap:0 36px;}
  .stats{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .search input{width:140px;}
}
@media (max-width:900px){
  .hero{padding:64px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual{aspect-ratio:4/3;}
  .cta-block{grid-template-columns:1fr;padding:40px 28px;border-radius:20px;}
  .cta-block h2{font-size:26px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .brand-inner{height:60px;gap:12px;}
  .brand-text{font-size:17px;}
  .search{display:none;}
  .channel-side{display:none;}
  .hero{padding:48px 0 40px;}
  .hero h1{font-size:clamp(28px,7.5vw,38px);}
  .wall{grid-template-columns:repeat(2,1fr);grid-auto-rows:150px;}
  .wall-item{grid-column:auto !important;grid-row:auto !important;}
  .post-grid{grid-template-columns:1fr;}
  .post-card--feature{grid-column:auto;}
  .section-head--row{flex-direction:column;align-items:flex-start;gap:16px;}
  .num-list{grid-template-columns:1fr;}
  .faq-q{font-size:16.5px;padding:20px 0;}
}
@media (max-width:560px){
  .topbar-inner{justify-content:center;flex-wrap:wrap;gap:10px;}
  .topbar-tag{font-size:11.5px;}
  .cd-cell[data-hide-sm]{display:none;}
  .cd-cell b{font-size:17px;padding:0 7px;}
  .stats{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{justify-content:center;text-align:center;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .brand-actions .text-link{display:none;}
  .num-item{gap:16px;}
  .num-item .num{font-size:24px;}
  .cta-block{padding:32px 20px;}
  .form-card{padding:22px;}
}

/* roulang page: category1 */
:root{
  --brand:#6C4CF1;
  --brand-deep:#4A2FD1;
  --accent:#FF5C39;
  --ink:#101014;
  --paper:#F7F6F2;
  --card:#FFFFFF;
  --line:#E4E1DA;
  --text:#3A3A44;
  --muted:#8A8A94;
  --soft:#F1F0EC;
  --ok:#12D6A8;
  --err:#E23A3A;
  --disabled:#C9C7C1;
  --r-card:16px;
  --r-img:14px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,16,20,.04), 0 8px 24px rgba(16,16,20,.05);
  --sh-2:0 2px 4px rgba(16,16,20,.06), 0 18px 40px rgba(16,16,20,.10);
  --ease:cubic-bezier(.2,.7,.2,1);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:3px solid rgba(108,76,241,.35);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;cursor:pointer;
  font-weight:700;letter-spacing:.01em;
  transition:transform 180ms var(--ease),background-color 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.btn-primary{
  background:var(--brand);color:#fff;border-radius:var(--r-pill);
  padding:14px 28px;font-size:15.5px;box-shadow:var(--sh-1);
}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 1px 2px rgba(16,16,20,.10);}
.btn-primary[disabled],.btn-primary.is-loading{background:var(--disabled);box-shadow:none;cursor:not-allowed;transform:none;}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-secondary{
  background:#fff;color:var(--ink);border:1px solid var(--line);
  border-radius:var(--r-sub);padding:13px 24px;font-size:15px;
}
.btn-secondary:hover{border-color:rgba(108,76,241,.4);color:var(--brand);}
.btn-ghost{
  background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.28);
  border-radius:var(--r-sub);padding:13px 24px;font-size:15px;
}
.btn-ghost:hover{background:rgba(255,255,255,.2);}
.btn-block{width:100%;}

/* ---------- 头部 ---------- */
.site-header{position:relative;z-index:40;}
.brand-bar{background:var(--paper);border-bottom:1px solid var(--line);}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{display:inline-flex;width:32px;height:32px;}
.brand-text{font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--ink);}
.brand-actions{display:flex;align-items:center;gap:14px;}
.search{
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:8px 16px;color:var(--muted);
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(108,76,241,.12);}
.search input{border:0;outline:0;background:transparent;width:190px;font-size:14px;color:var(--ink);}
.search input::placeholder{color:var(--muted);}
.text-link{font-size:14.5px;font-weight:600;color:var(--text);transition:color 180ms var(--ease);}
.text-link:hover{color:var(--brand);}

.channel-bar{
  background:#fff;border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:50;
  transition:box-shadow 200ms var(--ease);
}
.channel-bar.is-stuck{box-shadow:0 6px 20px rgba(16,16,20,.06);}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;}
.channel-list{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none;}
.channel-list::-webkit-scrollbar{display:none;}
.channel-link{
  display:inline-block;white-space:nowrap;
  padding:10px 16px;font-size:15px;font-weight:600;color:#5A5A66;
  border-radius:var(--r-pill);position:relative;
  transition:color 180ms var(--ease),background-color 180ms var(--ease);
}
.channel-link:hover{color:var(--brand);background:rgba(108,76,241,.08);}
.channel-link.is-active{color:var(--ink);}
.channel-link.is-active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:-2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.channel-side{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);white-space:nowrap;}
.live{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(255,92,57,.14);}

/* ---------- 内页首屏 ---------- */
.page-hero{position:relative;background:var(--ink);overflow:hidden;}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.45;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(16,16,20,.94) 0%,rgba(16,16,20,.78) 48%,rgba(16,16,20,.5) 100%);
}
.page-hero .container{position:relative;z-index:2;padding-top:64px;padding-bottom:64px;}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:rgba(255,255,255,.62);}
.breadcrumb a{color:rgba(255,255,255,.62);transition:color 180ms var(--ease);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:#fff;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.14em;
  color:var(--brand);margin-top:26px;
}
.page-hero .eyebrow{color:#C3B6FF;}
.page-title{
  font-size:clamp(30px,4.4vw,50px);
  font-weight:800;line-height:1.16;letter-spacing:-.02em;
  color:#fff;margin-top:14px;max-width:900px;
}
.page-lead{
  margin-top:20px;max-width:760px;
  font-size:16.5px;line-height:1.9;color:rgba(255,255,255,.78);
}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.meta-chip{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-pill);padding:7px 16px;
  font-size:13px;font-weight:600;color:#fff;
}
.meta-chip i{width:6px;height:6px;border-radius:50%;background:var(--ok);}

/* ---------- 数据条 ---------- */
.stat-strip{
  background:#fff;border-bottom:1px solid var(--line);
}
.stat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
}
.stat-item{padding:28px 24px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:0;}
.stat-num{
  font-size:clamp(28px,3.6vw,38px);font-weight:800;letter-spacing:-.03em;
  color:var(--ink);line-height:1.1;
}
.stat-num em{font-style:normal;color:var(--brand);font-size:.55em;margin-left:4px;font-weight:700;}
.stat-label{margin-top:8px;font-size:13px;color:var(--muted);}

/* ---------- 主体布局 ---------- */
main{padding:80px 0 96px;}
.layout{display:grid;grid-template-columns:248px minmax(0,1fr);gap:48px;align-items:start;}

.side-nav{
  position:sticky;top:96px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 20px;box-shadow:var(--sh-1);
}
.side-title{
  font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--muted);
  text-transform:uppercase;margin-bottom:14px;
}
.side-link{
  display:flex;gap:10px;align-items:baseline;
  padding:11px 0 11px 16px;
  border-left:2px solid var(--line);
  font-size:14.5px;font-weight:600;color:#5A5A66;
  transition:color 180ms var(--ease),border-color 180ms var(--ease),background-color 180ms var(--ease);
}
.side-link .num{font-size:12px;font-weight:800;color:var(--muted);letter-spacing:.06em;}
.side-link:hover{color:var(--brand);border-left-color:rgba(108,76,241,.5);background:rgba(108,76,241,.05);}
.side-link.is-current{color:var(--brand);border-left-color:var(--brand);background:rgba(108,76,241,.06);}
.side-link.is-current .num{color:var(--brand);}

.content-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:44px 48px;box-shadow:var(--sh-1);
}
.article-h2{
  font-size:clamp(23px,2.4vw,30px);font-weight:700;line-height:1.3;
  color:var(--ink);letter-spacing:-.01em;position:relative;padding-left:16px;
  margin-top:52px;
}
.article-h2:first-child{margin-top:0;}
.article-h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;
  background:var(--brand);border-radius:2px;
}
.section-block + .section-block{margin-top:8px;}
.content-card p{margin-top:16px;max-width:700px;}
.content-card p:first-of-type{margin-top:18px;}
section[id]{scroll-margin-top:96px;}

.point-list{margin-top:22px;border-top:1px solid var(--line);}
.point-list li{
  display:grid;grid-template-columns:44px minmax(0,1fr);gap:16px;
  padding:18px 0;border-bottom:1px solid var(--line);
}
.point-list .idx{
  font-size:15px;font-weight:800;color:var(--brand);letter-spacing:.02em;
  padding-top:2px;
}
.point-list strong{display:block;font-size:16px;font-weight:700;color:var(--ink);}
.point-list span{display:block;margin-top:6px;font-size:15px;color:var(--text);line-height:1.85;}

.figure-pair{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:28px;}
.figure-pair figure{margin:0;}
.figure-pair img{
  border-radius:var(--r-img);width:100%;aspect-ratio:4/3;object-fit:cover;
  background:var(--soft);
}
.figure-pair figcaption{
  margin-top:12px;font-size:13px;color:var(--muted);line-height:1.7;
}

.notice{
  margin-top:28px;background:rgba(108,76,241,.06);
  border-left:3px solid var(--brand);border-radius:0 12px 12px 0;
  padding:18px 22px;font-size:15px;color:#4A4670;line-height:1.85;
}
.notice strong{color:var(--ink);font-weight:700;}

.mini-table{margin-top:24px;border:1px solid var(--line);border-radius:12px;overflow:hidden;}
.mini-table .row{display:grid;grid-template-columns:150px minmax(0,1fr);border-top:1px solid var(--line);}
.mini-table .row:first-child{border-top:0;}
.mini-table .cell{padding:14px 20px;font-size:15px;}
.mini-table .cell.key{background:var(--paper);font-weight:700;color:var(--ink);}

/* ---------- FAQ ---------- */
.faq-section{margin-top:80px;}
.section-head{max-width:820px;}
.section-title{
  font-size:clamp(25px,3vw,36px);font-weight:700;line-height:1.25;
  color:var(--ink);letter-spacing:-.01em;margin-top:12px;
}
.section-sub{margin-top:14px;font-size:15.5px;color:var(--muted);line-height:1.85;}
.faq{max-width:880px;margin:36px auto 0;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;background:transparent;border:0;cursor:pointer;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 28px;font-size:17px;font-weight:700;color:var(--ink);
  transition:color 180ms var(--ease),background-color 180ms var(--ease);
}
.faq-q:hover{color:var(--brand);background:rgba(108,76,241,.03);}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform 280ms var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-icon::before{left:0;right:0;top:10px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:10px;width:2px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{
  display:grid;grid-template-rows:0fr;
  transition:grid-template-rows 320ms var(--ease);
}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a-inner p{
  padding:0 28px 24px;font-size:15.5px;line-height:1.85;color:#5A5A66;max-width:760px;
}

/* ---------- CTA ---------- */
.cta-block{margin-top:88px;}
.cta-inner{
  background:var(--ink);border-radius:24px;overflow:hidden;
  display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:48px;
  padding:56px 56px;position:relative;
}
.cta-inner::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;opacity:.18;
}
.cta-copy{position:relative;z-index:2;}
.cta-copy .eyebrow{color:#C3B6FF;margin-top:0;}
.cta-title{
  font-size:clamp(24px,2.8vw,34px);font-weight:800;line-height:1.3;
  color:#fff;letter-spacing:-.01em;margin-top:14px;max-width:520px;
}
.cta-text{margin-top:16px;font-size:15.5px;line-height:1.9;color:rgba(255,255,255,.74);max-width:480px;}
.cta-points{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px;}
.cta-points span{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid rgba(255,255,255,.2);border-radius:var(--r-pill);
  padding:6px 14px;font-size:13px;color:rgba(255,255,255,.8);
}
.cta-form{
  position:relative;z-index:2;background:#fff;border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-2);
}
.form-title{font-size:17px;font-weight:700;color:var(--ink);}
.form-tip{margin-top:6px;font-size:13px;color:var(--muted);}
.field{margin-top:18px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:12px;
  padding:12px 14px;font-size:15px;background:#fff;
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.field input{height:48px;padding:0 14px;}
.field textarea{min-height:104px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus{outline:0;border-color:var(--brand);box-shadow:0 0 0 3px rgba(108,76,241,.12);}
.field input::placeholder,.field textarea::placeholder{color:var(--muted);}
.form-note{margin-top:14px;font-size:12px;color:var(--muted);line-height:1.7;}
.form-status{margin-top:12px;font-size:13px;color:var(--ok);min-height:18px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#fff;margin-top:0;padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand-text{color:#fff;}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:320px;}
.footer-title{font-size:13px;font-weight:700;letter-spacing:.14em;color:rgba(255,255,255,.5);}
.footer-links{margin-top:18px;}
.footer-links li{margin-bottom:12px;font-size:14.5px;color:rgba(255,255,255,.72);}
.footer-links a{color:rgba(255,255,255,.72);transition:color 180ms var(--ease),transform 180ms var(--ease);display:inline-block;}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 420ms var(--ease),transform 420ms var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .cta-inner{grid-template-columns:minmax(0,1fr) 380px;padding:48px 40px;gap:36px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line);}
}
@media (max-width:1024px){
  .brand-actions .text-link{display:none;}
  .search input{width:150px;}
  main{padding:64px 0 80px;}
  .layout{grid-template-columns:1fr;gap:32px;}
  .side-nav{position:static;padding:16px;border-radius:var(--r-card);}
  .side-title{display:none;}
  .side-nav-list{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px;}
  .side-nav-list::-webkit-scrollbar{display:none;}
  .side-link{
    border-left:0;border-bottom:2px solid transparent;background:var(--paper);
    padding:9px 14px;border-radius:var(--r-pill);white-space:nowrap;
  }
  .side-link:hover{border-left-color:transparent;}
  .side-link.is-current{background:rgba(108,76,241,.1);border-bottom-color:transparent;}
  .content-card{padding:36px 32px;}
  .cta-inner{grid-template-columns:1fr;padding:44px 32px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .brand-inner{height:60px;gap:12px;}
  .brand-text{font-size:17px;}
  .brand-actions{gap:10px;}
  .search{display:none;}
  .page-hero .container{padding-top:44px;padding-bottom:44px;}
  .page-lead{font-size:15.5px;}
  main{padding:52px 0 64px;}
  .content-card{padding:28px 20px;border-radius:14px;}
  .article-h2{margin-top:40px;}
  .point-list li{grid-template-columns:34px minmax(0,1fr);gap:12px;}
  .figure-pair{grid-template-columns:1fr;}
  .mini-table .row{grid-template-columns:1fr;}
  .mini-table .cell.key{border-bottom:1px solid var(--line);}
  .faq-q{padding:18px 20px;font-size:16px;}
  .faq-a-inner p{padding:0 20px 20px;}
  .cta-inner{padding:32px 22px;border-radius:18px;}
  .cta-form{padding:22px;}
  .stat-strip .stat-item{padding:22px 18px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-desc{max-width:none;}
  .footer-bottom{flex-direction:column;align-items:center;text-align:center;}
}
@media (max-width:560px){
  .page-title{font-size:clamp(26px,7.6vw,34px);}
  .stat-grid{grid-template-columns:1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--line);}
  .stat-item:last-child{border-bottom:0;}
  .btn{width:100%;}
  .brand-actions .btn{width:auto;}
  .hero-meta{gap:8px;}
  .meta-chip{font-size:12px;padding:6px 12px;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --brand:#6C4CF1;
  --brand-deep:#4A2FD1;
  --brand-soft:rgba(108,76,241,.08);
  --brand-line:rgba(108,76,241,.28);
  --accent:#FF5C39;
  --accent-soft:rgba(255,92,57,.12);
  --ink:#101014;
  --paper:#F7F6F2;
  --card:#FFFFFF;
  --line:#E4E1DA;
  --text:#3A3A44;
  --text-2:#5A5A66;
  --muted:#8A8A94;
  --ok:#12D6A8;
  --err:#E23A3A;
  --disabled:#C9C7C1;
  --soft:#F1F0EC;
  --r-card:16px;
  --r-img:14px;
  --r-pill:999px;
  --r-input:12px;
  --sh-1:0 1px 2px rgba(16,16,20,.04),0 8px 24px rgba(16,16,20,.05);
  --sh-2:0 2px 4px rgba(16,16,20,.06),0 18px 40px rgba(16,16,20,.10);
  --ease:cubic-bezier(.2,.7,.2,1);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3;}
p{margin:0 0 1.2em;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
svg{display:block;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(108,76,241,.35);border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ── 导航 ── */
.site-header{position:relative;z-index:60;}
.brand-bar{background:var(--paper);border-bottom:1px solid var(--line);}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand-mark{flex:0 0 auto;display:inline-flex;}
.brand-text{font-size:20px;font-weight:800;letter-spacing:-.02em;color:var(--ink);}
.brand-actions{display:flex;align-items:center;gap:14px;}
.search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  border:1px solid var(--line);border-radius:var(--r-pill);background:#fff;color:var(--muted);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease);
}
.search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(108,76,241,.12);color:var(--brand);}
.search input{border:0;outline:none;background:transparent;width:190px;font-size:14px;color:var(--text);}
.search input::placeholder{color:var(--muted);}
.text-link{font-size:14px;font-weight:600;color:var(--text-2);}
.text-link:hover{color:var(--brand);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);font-weight:700;white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-primary[disabled],.btn-primary.is-disabled{background:var(--disabled);box-shadow:none;cursor:not-allowed;transform:none;}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.26);}
.btn-ghost:hover{background:rgba(255,255,255,.2);color:#fff;}
.btn-outline{background:#fff;border:1px solid var(--line);color:var(--ink);border-radius:var(--r-input);}
.btn-outline:hover{border-color:var(--brand-line);color:var(--brand);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-md{height:48px;padding:0 24px;font-size:15px;}
.btn-lg{height:52px;padding:0 28px;font-size:16px;}
.btn-block{width:100%;}

.channel-bar{position:sticky;top:0;z-index:55;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .28s var(--ease);}
.channel-bar.is-stuck{box-shadow:0 6px 20px rgba(16,16,20,.06);}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:56px;}
.channel-list{display:flex;align-items:stretch;gap:4px;min-width:0;}
.channel-link{
  position:relative;display:inline-flex;align-items:center;height:56px;padding:0 16px;
  font-size:15px;font-weight:600;color:var(--text-2);border-radius:var(--r-pill);
}
.channel-link:hover{color:var(--brand);background:var(--brand-soft);}
.channel-link.is-active{color:var(--ink);}
.channel-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;background:var(--brand);
}
.channel-side{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);white-space:nowrap;}
.live{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(18,214,168,.18);animation:pulse 2s var(--ease) infinite;}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.45}}

/* ── 倒计时条 ── */
.countdown-strip{background:var(--ink);color:#fff;}
.countdown-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:44px;padding:6px 0;}
.cd-label{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;letter-spacing:.04em;color:rgba(255,255,255,.82);}
.cd-label .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);}
.cd-clock{display:flex;align-items:center;gap:10px;}
.cd-unit{display:flex;align-items:center;gap:4px;}
.cd-num{
  min-width:34px;padding:2px 8px;border-radius:8px;background:rgba(255,255,255,.08);
  font-size:20px;font-weight:800;line-height:1.3;letter-spacing:-.02em;font-variant-numeric:tabular-nums;text-align:center;color:#fff;
}
.cd-suffix{font-size:11px;color:rgba(255,255,255,.55);}
.cd-link{display:inline-flex;}

/* ── 面包屑 ── */
.crumb-row{padding:26px 0 0;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C9C7C1;}
.breadcrumb .current{color:var(--ink);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ── 文章布局 ── */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px;align-items:start;padding-top:24px;padding-bottom:72px;}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:40px 44px 36px;
}
.article-head{border-bottom:1px solid var(--line);padding-bottom:24px;margin-bottom:26px;}
.article-badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:var(--r-pill);padding:4px 12px;font-size:12px;font-weight:600;line-height:1.6;}
.badge-brand{background:var(--brand-soft);color:var(--brand);}
.badge-time{background:var(--soft);color:var(--muted);}
.badge-accent{background:var(--accent-soft);color:var(--accent);}
.article-title{font-size:clamp(28px,3.6vw,42px);font-weight:800;letter-spacing:-.02em;line-height:1.2;color:var(--ink);}
.article-meta{display:flex;flex-wrap:wrap;gap:6px 20px;margin-top:18px;font-size:13px;color:var(--muted);}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}

/* ── 正文 ── */
.article-body{font-size:17px;line-height:1.9;color:var(--text);max-width:820px;}
.article-body>*:first-child{margin-top:0;}
.article-body h2{
  position:relative;font-size:clamp(22px,2.3vw,28px);margin:40px 0 16px;padding-left:14px;line-height:1.35;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:4px;border-radius:2px;background:var(--brand);}
.article-body h3{font-size:20px;margin:28px 0 12px;}
.article-body h4{font-size:17px;margin:24px 0 10px;}
.article-body p{margin:0 0 1.4em;}
.article-body img{border-radius:12px;margin:24px 0;width:100%;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:var(--soft);border-left:4px solid var(--brand);
  border-radius:0 12px 12px 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body ul,.article-body ol{margin:0 0 1.4em;}
.article-body ul li,.article-body ol li{position:relative;padding-left:24px;margin-bottom:10px;line-height:1.85;}
.article-body ul li::before{content:"";position:absolute;left:5px;top:.75em;width:6px;height:6px;border-radius:50%;background:var(--brand);}
.article-body ol{counter-reset:li;}
.article-body ol li{counter-increment:li;}
.article-body ol li::before{content:counter(li);position:absolute;left:0;top:0;color:var(--brand);font-weight:800;font-size:15px;}
.article-body a{color:var(--brand);border-bottom:1px solid var(--brand-line);}
.article-body a:hover{font-weight:600;border-bottom-color:var(--brand);}
.article-body strong{color:var(--ink);font-weight:700;}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top;}
.article-body th{background:var(--paper);color:var(--ink);font-weight:700;}
.article-body tbody tr:hover td{background:#FBFAF8;}
.article-body code{background:var(--soft);border-radius:6px;padding:2px 6px;font-size:14px;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line);}
.tag{
  font-size:13px;color:var(--text-2);background:var(--paper);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:6px 14px;transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.tag:hover{color:var(--brand);border-color:var(--brand-line);background:#fff;}

/* ── 上一篇 / 下一篇 ── */
.post-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:24px;}
.post-nav a{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:18px 22px;
  box-shadow:var(--sh-1);transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.post-nav a:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.post-nav .pn-label{display:flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.1em;color:var(--muted);}
.post-nav .pn-title{margin-top:8px;font-size:15.5px;font-weight:700;color:var(--ink);}
.post-nav a:hover .pn-title{color:var(--brand);}
.post-nav .pn-next{text-align:right;}
.post-nav .pn-next .pn-label{justify-content:flex-end;}

/* ── 侧栏 ── */
.article-aside{position:sticky;top:76px;display:flex;flex-direction:column;gap:20px;}
.aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);}
.aside-title{font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--brand);margin-bottom:6px;}
.aside-list li+li{border-top:1px solid var(--line);}
.aside-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 0;font-size:14.5px;font-weight:600;color:var(--text);}
.aside-list a:hover{color:var(--brand);}
.aside-list .arrow{color:var(--muted);transition:transform .2s var(--ease),color .2s var(--ease);}
.aside-list a:hover .arrow{transform:translateX(3px);color:var(--brand);}
.aside-cta{background:var(--ink);border-radius:var(--r-card);padding:24px;color:#fff;box-shadow:var(--sh-1);}
.aside-cta h3{color:#fff;font-size:18px;margin-bottom:8px;}
.aside-cta p{font-size:13.5px;color:rgba(255,255,255,.72);line-height:1.75;}
.aside-states{display:flex;flex-direction:column;gap:10px;margin-top:16px;}
.aside-state{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:rgba(255,255,255,.72);}
.aside-state b{color:#fff;font-weight:700;font-variant-numeric:tabular-nums;}
.aside-state .ok{color:var(--ok);}

/* ── 空态 ── */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);padding:48px 24px;text-align:center;background:#fff;
}
.empty-state svg{margin:0 auto 18px;color:var(--brand);opacity:.35;}
.empty-title{font-size:19px;font-weight:700;color:var(--ink);margin-bottom:8px;}
.empty-text{font-size:15px;color:var(--muted);max-width:420px;margin:0 auto 22px;line-height:1.8;}

/* ── 板块 ── */
.section{padding:64px 0;}
.section-tight{padding:0 0 72px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.section-eyebrow{font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--brand);}
.section-title{font-size:clamp(24px,2.6vw,34px);font-weight:700;margin-top:8px;}
.section-desc{font-size:15px;color:var(--muted);margin-top:10px;max-width:620px;}
.more-link{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:700;color:var(--brand);white-space:nowrap;}
.more-link .arrow{transition:transform .2s var(--ease);}
.more-link:hover .arrow{transform:translateX(4px);}

.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.card-media{position:relative;aspect-ratio:16/9;background:var(--soft);overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .42s var(--ease);}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:19px;line-height:1.35;margin:12px 0 10px;transition:color .2s var(--ease);}
.card:hover .card-body h3{color:var(--brand);}
.card-text{font-size:14.5px;color:var(--text-2);line-height:1.75;margin:0 0 16px;}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}
.card-foot .arrow{color:var(--brand);transition:transform .2s var(--ease);}
.card:hover .card-foot .arrow{transform:translateX(4px);}

/* ── CTA 区块 ── */
.cta-band{
  background:var(--ink);border-radius:24px;padding:48px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;color:#fff;
}
.cta-band h2{color:#fff;font-size:clamp(24px,2.6vw,34px);}
.cta-band .cta-eyebrow{font-size:13px;font-weight:600;letter-spacing:.14em;color:#B9A9FF;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.72);font-size:15.5px;line-height:1.85;margin:14px 0 0;}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.cta-points span{
  font-size:12.5px;color:rgba(255,255,255,.82);background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.16);border-radius:var(--r-pill);padding:6px 14px;
}
.form-card{background:#fff;border-radius:var(--r-card);padding:26px;box-shadow:var(--sh-2);color:var(--text);}
.form-card h3{font-size:18px;margin-bottom:6px;}
.form-card .form-hint{font-size:13px;color:var(--muted);margin-bottom:18px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:6px;}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-input);
  outline:none;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.field textarea{height:auto;min-height:92px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(108,76,241,.12);}
.field.has-error input{border-color:var(--err);}
.field .err-text{display:none;font-size:12px;color:var(--err);margin-top:6px;}
.field.has-error .err-text{display:block;}
.form-note{font-size:12px;color:var(--muted);line-height:1.7;margin-top:14px;}
.form-note a{color:var(--brand);}

/* ── 页脚 ── */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 28px;margin-top:8px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .brand-text{color:#fff;}
.footer-desc{font-size:13.5px;line-height:1.85;margin-top:16px;max-width:320px;color:rgba(255,255,255,.66);}
.footer-title{font-size:13px;font-weight:700;letter-spacing:.12em;color:#fff;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a,.footer-links span{font-size:14px;color:rgba(255,255,255,.72);display:inline-block;transition:color .18s var(--ease),transform .18s var(--ease);}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.10);margin-top:48px;padding-top:22px;font-size:13px;color:rgba(255,255,255,.55);
}

/* ── 入场动效 ── */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ── 响应式 ── */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .article-aside{position:static;flex-direction:row;flex-wrap:wrap;}
  .article-aside>*{flex:1 1 300px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:1024px){
  .channel-inner{height:56px;}
  .channel-list{overflow-x:auto;flex-wrap:nowrap;-ms-overflow-style:none;scrollbar-width:none;padding-right:24px;
    -webkit-mask-image:linear-gradient(90deg,#000 84%,transparent 100%);
    mask-image:linear-gradient(90deg,#000 84%,transparent 100%);}
  .channel-list::-webkit-scrollbar{display:none;}
  .channel-link{white-space:nowrap;}
  .section{padding:56px 0;}
  .cta-band{grid-template-columns:1fr;gap:28px;padding:36px;}
}
@media (max-width:900px){
  .brand-inner{height:64px;}
  .search{display:none;}
  .article-card{padding:32px 28px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .brand-inner{height:60px;}
  .brand-text{font-size:18px;}
  .text-link{display:none;}
  .countdown-inner{flex-wrap:wrap;gap:10px;padding:8px 0;}
  .cd-num{font-size:18px;min-width:30px;}
  .article-card{padding:24px 20px 22px;}
  .article-body{font-size:16.5px;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav .pn-next{text-align:left;}
  .post-nav .pn-next .pn-label{justify-content:flex-start;}
  .card-grid{grid-template-columns:1fr;}
  .section{padding:52px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .cta-band{padding:28px 22px;border-radius:20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:center;text-align:center;justify-content:center;}
}
@media (max-width:560px){
  .brand-mark svg{width:28px;height:28px;}
  .brand-text{font-size:16.5px;}
  .btn-sm{height:36px;padding:0 14px;font-size:13px;}
  .cd-clock{gap:6px;}
  .cd-num{font-size:16px;min-width:26px;padding:2px 6px;}
  .cd-suffix{font-size:10px;}
  .btn-lg,.btn-md{width:100%;}
  .cta-points span{font-size:12px;}
  .breadcrumb .current{max-width:180px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --brand:#6C4CF1;
  --brand-deep:#4A2FD1;
  --accent:#FF5C39;
  --ink:#101014;
  --bg:#F7F6F2;
  --card:#FFFFFF;
  --line:#E4E1DA;
  --text:#3A3A44;
  --muted:#8A8A94;
  --ok:#12D6A8;
  --err:#E23A3A;
  --soft:#F1F0EC;
  --r-card:16px;
  --r-media:14px;
  --r-btn:999px;
  --r-sm:12px;
  --sh-1:0 1px 2px rgba(16,16,20,.04), 0 8px 24px rgba(16,16,20,.05);
  --sh-2:0 2px 4px rgba(16,16,20,.06), 0 18px 40px rgba(16,16,20,.10);
  --ease:cubic-bezier(.2,.7,.2,1);
  --nav-h:56px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
h1,h2,h3,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
svg{display:block;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(108,76,241,.35);border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 导航 ---------- */
.site-header{position:relative;z-index:60;}
.brand-bar{background:var(--bg);border-bottom:1px solid var(--line);}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand-mark{flex:none;display:flex;}
.brand-text{font-size:20px;font-weight:800;letter-spacing:-.02em;color:var(--ink);}
.brand-actions{display:flex;align-items:center;gap:14px;}
.search{display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);color:var(--muted);transition:border-color .18s var(--ease),box-shadow .18s var(--ease);}
.search:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(108,76,241,.12);}
.search input{width:180px;border:0;outline:none;background:transparent;font-size:14px;color:var(--text);}
.text-link{font-size:14px;font-weight:600;color:#5A5A66;transition:color .18s var(--ease);}
.text-link:hover{color:var(--brand);}
.channel-bar{position:sticky;top:0;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .28s var(--ease);}
.channel-bar.is-stuck{box-shadow:0 6px 20px rgba(16,16,20,.06);}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:var(--nav-h);}
.channel-list{display:flex;align-items:center;gap:4px;}
.channel-link{position:relative;display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-btn);font-size:14.5px;font-weight:600;color:#5A5A66;white-space:nowrap;transition:color .18s var(--ease),background .18s var(--ease);}
.channel-link:hover{color:var(--brand);background:rgba(108,76,241,.08);}
.channel-link.is-active{color:var(--ink);}
.channel-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:-11px;height:2px;background:var(--brand);border-radius:2px;}
.channel-side{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;color:var(--muted);white-space:nowrap;}
.live{width:7px;height:7px;border-radius:50%;background:var(--ok);animation:pulse 2s var(--ease) infinite;}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(18,214,168,.55);}70%{box-shadow:0 0 0 8px rgba(18,214,168,0);}100%{box-shadow:0 0 0 0 rgba(18,214,168,0);}}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:0 26px;height:50px;border:1px solid transparent;border-radius:var(--r-btn);font-size:15px;font-weight:700;cursor:pointer;transition:transform .18s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:var(--sh-1);}
.btn-secondary{background:#fff;color:var(--ink);border-color:var(--line);}
.btn-secondary:hover{border-color:rgba(108,76,241,.4);color:var(--brand);transform:translateY(-1px);}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.2);}
.btn-ghost:hover{background:rgba(255,255,255,.2);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding-top:26px;}
.breadcrumb a{color:var(--muted);transition:color .18s var(--ease);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C9C7C1;}
.breadcrumb .current{color:var(--ink);font-weight:600;}

/* ---------- Hero ---------- */
.hero-cat{padding-bottom:8px;}
.hero-cat-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;padding:40px 0 64px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--brand);text-transform:uppercase;}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px;}
h1{font-size:clamp(34px,5vw,52px);font-weight:800;letter-spacing:-.02em;line-height:1.15;color:var(--ink);margin:18px 0 20px;}
.hero-lead{font-size:17px;line-height:1.9;color:var(--text);max-width:640px;}
.hero-note{margin-top:18px;font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-cat-media{position:relative;border-radius:var(--r-media);overflow:hidden;box-shadow:var(--sh-1);background:var(--soft);}
.hero-cat-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .42s var(--ease);}
.hero-cat-media:hover img{transform:scale(1.04);}
.hero-cat-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(108,76,241,.08),rgba(16,16,20,.06));pointer-events:none;}

/* ---------- 板块 ---------- */
.section{padding:80px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.section-head h2{font-size:clamp(26px,3.2vw,38px);font-weight:700;line-height:1.25;color:var(--ink);letter-spacing:-.01em;margin-top:14px;}
.section-head p{font-size:15px;color:var(--muted);max-width:520px;margin-top:10px;}
.section-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:700;color:var(--brand);white-space:nowrap;transition:gap .18s var(--ease);}
.section-link:hover{gap:10px;}

/* ---------- 信息卡网格 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.info-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh-1);transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(108,76,241,.25);}
.card-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:var(--r-sm);background:rgba(108,76,241,.08);color:var(--brand);margin-bottom:18px;}
.info-card h3{font-size:19px;font-weight:700;line-height:1.35;color:var(--ink);margin-bottom:10px;}
.info-card p{font-size:15px;line-height:1.85;color:#5A5A66;}
.card-link{display:inline-flex;align-items:center;gap:6px;margin-top:auto;padding-top:18px;font-size:14px;font-weight:700;color:var(--brand);transition:gap .18s var(--ease);}
.card-link:hover{gap:10px;}
.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:var(--r-btn);font-size:12px;font-weight:600;}
.badge-brand{background:rgba(108,76,241,.08);color:var(--brand);}
.badge-accent{background:rgba(255,92,57,.12);color:var(--accent);}
.badge-time{background:var(--soft);color:var(--muted);}

/* ---------- 大号编号折叠 ---------- */
.acc-wrap{max-width:960px;}
.acc{border-top:1px solid var(--line);}
.acc-item{border-bottom:1px solid var(--line);}
.acc-head{display:flex;align-items:flex-start;gap:22px;width:100%;padding:26px 0;background:none;border:0;text-align:left;cursor:pointer;}
.acc-num{flex:none;width:74px;font-size:clamp(28px,4vw,40px);font-weight:800;line-height:1;letter-spacing:-.03em;color:var(--brand);font-variant-numeric:tabular-nums;}
.acc-title{flex:1;font-size:19px;font-weight:700;line-height:1.45;color:var(--ink);}
.acc-plus{flex:none;width:26px;height:26px;margin-top:6px;color:var(--brand);transition:transform .28s var(--ease);}
.acc-item.is-open .acc-plus{transform:rotate(45deg);}
.acc-body{display:grid;grid-template-rows:0fr;transition:grid-template-rows .42s var(--ease);}
.acc-body > div{overflow:hidden;}
.acc-answer{padding:0 0 28px 96px;font-size:15.5px;line-height:1.85;color:#5A5A66;max-width:760px;}
.acc-answer strong{color:var(--ink);font-weight:700;}

/* ---------- 图文路径区 ---------- */
.path-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:40px;align-items:center;}
.figure-pair{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.figure-pair figure{border-radius:var(--r-media);overflow:hidden;background:var(--soft);box-shadow:var(--sh-1);}
.figure-pair img{width:100%;aspect-ratio:4/5;object-fit:cover;transition:transform .42s var(--ease);}
.figure-pair figure:hover img{transform:scale(1.04);}
.step-list li{display:grid;grid-template-columns:64px 1fr;gap:16px;padding:20px 0;border-bottom:1px solid var(--line);}
.step-list li:first-child{padding-top:0;}
.step-list li:last-child{border-bottom:0;}
.step-key{font-size:14px;font-weight:800;color:var(--brand);letter-spacing:.06em;font-variant-numeric:tabular-nums;}
.step-body h3{font-size:18px;font-weight:700;color:var(--ink);margin-bottom:6px;}
.step-body p{font-size:15px;line-height:1.85;color:#5A5A66;}

/* ---------- 数据条 ---------- */
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;margin-top:72px;}
.fact{background:#fff;padding:26px 22px;}
.fact-value{font-size:clamp(24px,3vw,34px);font-weight:800;color:var(--ink);letter-spacing:-.02em;line-height:1.1;font-variant-numeric:tabular-nums;}
.fact-label{margin-top:8px;font-size:13px;color:var(--muted);}

/* ---------- CTA ---------- */
.cta-band{display:flex;align-items:center;justify-content:space-between;gap:32px;margin-top:80px;padding:44px 40px;background:var(--ink);border-radius:24px;color:#fff;}
.cta-band h2{font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.3;color:#fff;}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.72);max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:none;}

/* ---------- 返回入口 ---------- */
.back-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;margin-top:32px;padding:24px 26px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);}
.back-row p{font-size:14.5px;color:var(--muted);}
.back-links{display:flex;flex-wrap:wrap;gap:10px;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:96px;background:var(--ink);color:#F7F6F2;padding:72px 0 32px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;}
.site-footer .brand-text{color:#F7F6F2;}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:320px;}
.footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a,.footer-links span{font-size:14px;color:rgba(255,255,255,.72);transition:color .18s var(--ease),transform .18s var(--ease);display:inline-block;}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;margin-top:56px;padding-top:24px;border-top:1px solid rgba(255,255,255,.10);font-size:13px;color:rgba(255,255,255,.58);font-variant-numeric:tabular-nums;}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .facts{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1024px){
  .channel-inner{overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;}
  .channel-inner::-webkit-scrollbar{display:none;}
  .channel-side{display:none;}
  .hero-cat-grid{grid-template-columns:1fr;gap:32px;padding:32px 0 48px;}
  .hero-cat-media img{aspect-ratio:16/10;}
  .path-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .brand-inner{height:60px;gap:12px;}
  .brand-text{font-size:18px;}
  .search,.text-link{display:none;}
  .section{padding:56px 0 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .card-grid{grid-template-columns:1fr;}
  .acc-head{gap:14px;padding:22px 0;}
  .acc-num{width:52px;}
  .acc-title{font-size:17px;}
  .acc-answer{padding:0 0 24px 0;font-size:15px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;border-radius:20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .back-row{flex-direction:column;align-items:flex-start;}
  .site-footer{padding:56px 0 28px;margin-top:72px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{justify-content:flex-start;}
}
@media (max-width:560px){
  h1{font-size:clamp(30px,8vw,38px);}
  .brand-actions .btn-sm{height:38px;padding:0 16px;font-size:13.5px;}
  .figure-pair{grid-template-columns:1fr;}
  .figure-pair img{aspect-ratio:16/10;}
  .facts{grid-template-columns:1fr;}
  .step-list li{grid-template-columns:1fr;gap:6px;}
  .btn-row .btn{width:100%;}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
}