/* roulang page: index */
:root{
  --brand-500:#1E68C8;
  --brand-600:#14559F;
  --brand-700:#0F3E7A;
  --brand-400:#3E86E0;
  --brand-100:#E3EEFB;
  --teal-500:#0FA3A0;
  --teal-100:#E2F5F4;
  --coral-500:#F2633C;
  --coral-100:#FDEBE5;
  --ink-900:#10203A;
  --ink-700:#2B3B54;
  --ink-500:#5A6B83;
  --ink-300:#93A2B8;
  --line:#E4EAF3;
  --bg-page:#F7F9FC;
  --bg-card:#FFFFFF;
  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:20px;
  --shadow-sm:0 1px 2px rgba(16,32,58,.04), 0 8px 24px rgba(16,32,58,.06);
  --shadow-md:0 16px 40px rgba(16,32,58,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --section-gap:96px;

  --bs-primary:#1E68C8;
  --bs-body-color:#2B3B54;
  --bs-border-color:#E4EAF3;
  --bs-link-color:#14559F;
  --bs-link-hover-color:#0F3E7A;
  --bs-body-bg:#F7F9FC;
  --bs-font-sans-serif:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-700);
  background:var(--bg-page);
}
img{max-width:100%;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--brand-700);}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}

.wrap{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--section-gap) 0;}
.section--tight{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section-head h2{font-size:32px;line-height:1.3;letter-spacing:-.01em;}
.section-head .sub{margin-top:8px;font-size:15px;color:var(--ink-500);max-width:640px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-600);background:var(--brand-100);border-radius:999px;padding:5px 14px;margin-bottom:14px;}

/* 导航 */
.site-nav{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(255,255,255,.62);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  backdrop-filter:blur(14px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.7);
  box-shadow:0 1px 2px rgba(16,32,58,.03);
  transition:background .24s var(--ease), border-color .24s var(--ease), box-shadow .24s var(--ease);
}
.site-nav.is-stuck{
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  box-shadow:0 6px 24px rgba(16,32,58,.08);
}
@supports not ((backdrop-filter:blur(4px)) or (-webkit-backdrop-filter:blur(4px))){
  .site-nav{background:rgba(255,255,255,.96);}
}
.nav-inner{display:flex;align-items:center;gap:32px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;white-space:nowrap;}
.brand:hover{color:var(--brand-700);}
.brand-mark{
  width:32px;height:32px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(150deg,var(--brand-500),var(--brand-700));
  color:#fff;font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(30,104,200,.28);
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-links a{
  position:relative;font-size:15px;color:var(--ink-700);padding:8px 14px;border-radius:999px;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.nav-links a:hover{background:var(--brand-100);color:var(--brand-600);}
.nav-links a.active{color:var(--brand-600);font-weight:600;background:var(--brand-100);}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink-500);
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.nav-search:hover{color:var(--brand-600);border-color:var(--brand-100);background:var(--brand-100);}
.btn-nav{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;
  background:var(--brand-500);color:#fff;border-radius:var(--radius-sm);padding:11px 22px;
  border:1px solid var(--brand-500);transition:background .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-nav:hover{background:var(--brand-600);border-color:var(--brand-600);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(30,104,200,.24);}
.nav-toggle{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:none;align-items:center;justify-content:center;color:var(--ink-700);
}
.offcanvas.offcanvas-end{background:rgba(255,255,255,.97);width:320px;}
.oc-head{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--line);}
.oc-body{padding:16px 24px 32px;}
.oc-body a.oc-link{
  display:flex;align-items:center;justify-content:space-between;
  font-size:17px;color:var(--ink-900);padding:16px 0;border-bottom:1px solid var(--line);
}
.oc-body a.oc-link:hover{color:var(--brand-600);}
.oc-body a.oc-link span.arrow{color:var(--ink-300);}
.oc-body .btn-nav{width:100%;justify-content:center;margin-top:24px;padding:14px 22px;}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  padding:168px 0 96px;
  background:#EDF3FB;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center right;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.86) 46%,rgba(255,255,255,.7) 100%);
}
.hero .wrap{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px;align-items:center;}
.hero h1{font-size:48px;line-height:1.2;letter-spacing:-.01em;}
.hero h1 em{font-style:normal;color:var(--brand-600);}
.hero-lead{margin-top:20px;font-size:18px;color:var(--ink-500);max-width:560px;}
.hero-actions{display:flex;align-items:center;gap:16px;margin-top:32px;flex-wrap:wrap;}
.btn-main{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-500);color:#fff;font-size:16px;font-weight:600;
  border:1px solid var(--brand-500);border-radius:var(--radius-sm);padding:13px 26px;
  transition:background .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-main:hover{background:var(--brand-600);border-color:var(--brand-600);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(30,104,200,.26);}
.btn-main:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;color:var(--brand-600);font-size:16px;font-weight:600;
  border:1px solid var(--brand-400);border-radius:var(--radius-sm);padding:13px 24px;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-600);}
.link-arrow i{font-style:normal;transition:transform .18s var(--ease);}
.link-arrow:hover i{transform:translateX(4px);}
.hero-facts{display:flex;gap:36px;margin-top:44px;flex-wrap:wrap;}
.hero-facts .fact strong{display:block;font-size:26px;color:var(--brand-700);font-variant-numeric:tabular-nums;letter-spacing:-.01em;}
.hero-facts .fact span{font-size:13px;color:var(--ink-300);}
.hero-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);padding:24px;
}
.hero-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;margin-bottom:18px;}
.hero-card h2{font-size:20px;line-height:1.45;}
.hero-card p{margin-top:10px;font-size:14px;color:var(--ink-500);}
.hero-card .row-mini{display:flex;align-items:center;justify-content:space-between;margin-top:16px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-300);}

/* 徽章 */
.badge-soft{display:inline-flex;align-items:center;font-size:13px;font-weight:600;color:var(--brand-600);background:var(--brand-100);border-radius:999px;padding:3px 12px;}
.badge-live{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:#fff;background:var(--coral-500);border-radius:999px;padding:5px 14px;}
.badge-live .dot{width:6px;height:6px;border-radius:50%;background:#fff;animation:pulse 1.6s infinite;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.82);}}
.badge-time{position:absolute;right:14px;bottom:14px;font-size:13px;color:#fff;background:rgba(16,32,58,.62);border-radius:8px;padding:3px 10px;font-variant-numeric:tabular-nums;}

/* 预告流 */
.stream-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:32px;align-items:start;}
.cover-card{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);overflow:hidden;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);}
.cover-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--brand-100);}
.cover-media{position:relative;}
.cover-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.cover-media .badge-live{position:absolute;left:16px;top:16px;}
.cover-body{padding:28px 32px 32px;}
.cover-body h3{font-size:22px;line-height:1.45;}
.cover-body p{margin-top:14px;color:var(--ink-500);}
.tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px;}
.tag{font-size:13px;color:var(--ink-500);background:#F2F6FC;border-radius:999px;padding:5px 12px;}

.count-card{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:28px;}
.count-card h3{font-size:18px;}
.count-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:22px 0 18px;}
.count-cell{background:#F4F8FE;border-radius:14px;padding:16px 8px;text-align:center;}
.count-cell b{display:block;font-size:38px;line-height:1.1;color:var(--brand-700);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}
.count-cell span{font-size:12px;color:var(--ink-300);}
.count-card.is-soon .count-cell b{color:var(--coral-500);}
.count-card .subscribe-hint{font-size:14px;color:var(--ink-500);}
.count-note{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-300);}

/* 看点列表 */
.point-list{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:8px 32px;}
.point-item{display:flex;gap:20px;align-items:flex-start;padding:24px 0;border-bottom:1px solid var(--line);}
.point-item:last-child{border-bottom:none;}
.point-num{
  flex:0 0 auto;width:44px;height:44px;border-radius:10px;background:var(--brand-100);color:var(--brand-600);
  font-size:16px;font-weight:700;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;
}
.point-item h3{font-size:18px;line-height:1.5;}
.point-item p{margin-top:6px;font-size:15px;color:var(--ink-500);}

/* 订阅 */
.subscribe{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);
  padding:40px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:center;
}
.subscribe h2{font-size:28px;line-height:1.35;}
.subscribe .desc{margin-top:12px;color:var(--ink-500);}
.sub-form{display:flex;gap:12px;flex-wrap:wrap;}
.sub-form input{
  flex:1 1 240px;min-width:0;font-size:15px;color:var(--ink-900);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:13px 16px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.sub-form input::placeholder{color:var(--ink-300);}
.sub-form input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,104,200,.15);}
.sub-form button{flex:0 0 auto;}
.sub-note{margin-top:12px;font-size:13px;color:var(--ink-300);}
.sub-success{margin-top:16px;display:none;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--teal-500);background:var(--teal-100);border-radius:var(--radius-sm);padding:10px 16px;}
.sub-success.show{display:flex;}

/* 回放卡 */
.replay-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr)) minmax(0,.85fr);gap:24px;}
.replay-card{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);overflow:hidden;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);}
.replay-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--brand-100);}
.replay-media{position:relative;}
.replay-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.replay-body{padding:18px 20px 22px;}
.replay-body h3{font-size:17px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:49px;}
.replay-body .meta{margin-top:12px;font-size:13px;color:var(--ink-300);font-variant-numeric:tabular-nums;}
.replay-all{
  display:flex;flex-direction:column;justify-content:center;gap:10px;
  background:var(--brand-100);border:1px solid var(--brand-100);border-radius:var(--radius-md);
  padding:28px;color:var(--brand-700);transition:background .2s var(--ease),transform .2s var(--ease);
}
.replay-all:hover{background:#D8E8FA;transform:translateY(-3px);color:var(--brand-700);}
.replay-all strong{font-size:18px;}
.replay-all span{font-size:14px;color:var(--brand-600);}
.replay-all i{font-style:normal;font-size:20px;transition:transform .2s var(--ease);}
.replay-all:hover i{transform:translateX(4px);}

/* 信息列表（CMS） */
.info-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-sm);overflow:hidden;color:var(--ink-700);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--brand-100);color:var(--ink-700);}
.info-card__cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.info-card__body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto;}
.info-card__title{
  margin-top:14px;font-size:18px;line-height:1.45;color:var(--ink-900);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:52px;
}
.info-card__desc{
  margin-top:10px;font-size:14px;line-height:1.7;color:var(--ink-500);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.info-card__meta{margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-300);font-variant-numeric:tabular-nums;}
.empty-state{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius-md);color:var(--ink-300);text-align:center;padding:32px;
}
.empty-state svg{width:44px;height:44px;stroke:var(--ink-300);}
.empty-state p{font-size:15px;}

/* 步骤轴 */
.value-split{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:56px;align-items:center;}
.value-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);}
.steps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 32px;position:relative;}
.step{position:relative;padding-left:56px;}
.step .node{
  position:absolute;left:0;top:2px;width:40px;height:40px;border-radius:12px;
  background:var(--brand-100);color:var(--brand-600);font-size:15px;font-weight:700;
  display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;}
.step p{margin-top:8px;font-size:14px;color:var(--ink-500);}

/* FAQ */
.faq .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;
  box-shadow:0 1px 2px rgba(16,32,58,.03);
}
.faq .accordion-button{
  font-size:17px;font-weight:600;color:var(--ink-900);background:#fff;padding:20px 24px;
  box-shadow:none;border-radius:14px;
}
.faq .accordion-button:not(.collapsed){color:var(--brand-600);background:var(--brand-100);}
.faq .accordion-button::after{
  background-image:none;width:12px;height:12px;border-right:2px solid var(--ink-300);border-bottom:2px solid var(--ink-300);
  transform:rotate(45deg);transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);border-color:var(--brand-600);}
.faq .accordion-body{padding:0 24px 22px;font-size:15px;color:var(--ink-500);line-height:1.8;}

/* CTA 带 */
.cta-band{
  background:var(--brand-100);border-radius:var(--radius-lg);
  padding:52px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:28px;line-height:1.35;}
.cta-band p{margin-top:10px;color:var(--ink-500);max-width:620px;}

/* 页脚 */
.site-footer{background:#10203A;color:rgba(255,255,255,.88);margin-top:96px;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:600;}
.site-footer .f-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:16px;}
.site-footer .f-brand:hover{color:#fff;}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);}
.site-footer li{margin-bottom:12px;}
.site-footer li a{font-size:14px;color:rgba(255,255,255,.82);display:inline-block;transition:transform .18s var(--ease),color .18s var(--ease);}
.site-footer li a:hover{color:#fff;transform:translateX(4px);}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.14);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,.6);
}

@media (max-width:1199.98px){
  .hero h1{font-size:42px;}
  .replay-row{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:991.98px){
  :root{--section-gap:72px;}
  .nav-links,.nav-actions .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-nav{display:none;}
  .hero{padding:140px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:36px;}
  .hero-lead{font-size:17px;}
  .stream-grid{grid-template-columns:1fr;}
  .subscribe{grid-template-columns:1fr;gap:24px;padding:32px;}
  .value-split{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:575.98px){
  :root{--section-gap:56px;}
  .wrap{padding:0 16px;}
  .hero{padding:124px 0 56px;}
  .hero h1{font-size:31px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{justify-content:center;min-height:44px;}
  .hero-facts{gap:24px;}
  .hero-facts .fact strong{font-size:22px;}
  .section-head h2{font-size:26px;}
  .cover-body{padding:22px;}
  .point-list{padding:4px 20px;}
  .point-num{width:32px;height:32px;font-size:14px;}
  .count-cell b{font-size:28px;}
  .subscribe{padding:24px;}
  .replay-row{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;gap:24px;}
  .cta-band{padding:32px 24px;}
  .cta-band h2{font-size:23px;}
  .cta-band .btn-main{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;}
  .sub-form{flex-direction:column;}
  .sub-form button{width:100%;justify-content:center;min-height:44px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
}

/* roulang page: article */
:root{
  --brand-500:#1E68C8;
  --brand-600:#14559F;
  --brand-700:#0F3E7A;
  --brand-400:#3E86E0;
  --brand-100:#E3EEFB;
  --teal-500:#0FA3A0;
  --teal-100:#E2F5F4;
  --coral-500:#F2633C;
  --coral-100:#FDEBE5;
  --ink-900:#10203A;
  --ink-700:#2B3B54;
  --ink-500:#5A6B83;
  --ink-300:#93A2B8;
  --line:#E4EAF3;
  --bg-page:#F7F9FC;
  --bg-card:#FFFFFF;
  --radius-xl:20px;
  --radius:16px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(16,32,58,.04),0 8px 24px rgba(16,32,58,.06);
  --shadow-hover:0 16px 40px rgba(16,32,58,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --section-y:96px;
  --font:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;

  --bs-primary:#1E68C8;
  --bs-body-color:#2B3B54;
  --bs-body-bg:#F7F9FC;
  --bs-border-color:#E4EAF3;
  --bs-link-color:#1E68C8;
  --bs-link-hover-color:#14559F;
  --bs-font-sans-serif:var(--font);
  --bs-border-radius:16px;
  --bs-border-radius-lg:20px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink-700);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-500);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-600);}
ul,ol{padding-left:1.2em;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}

.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1030;
  background:rgba(255,255,255,.62);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  backdrop-filter:blur(14px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.7);
  box-shadow:0 1px 2px rgba(16,32,58,.03);
  transition:background .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-stuck{
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--line);
  box-shadow:0 8px 26px rgba(16,32,58,.08);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:32px;
  height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:var(--ink-900);
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand:hover{color:var(--ink-900);}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;height:36px;
  border-radius:11px;
  background:linear-gradient(140deg,var(--brand-500),var(--brand-600));
  color:#fff;
  font-size:13px;
  font-weight:800;
  letter-spacing:.04em;
  box-shadow:0 6px 16px rgba(30,104,200,.28);
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin:0;
  padding:0;
  list-style:none;
  flex:1 1 auto;
}
.nav-links a{
  display:inline-block;
  padding:9px 14px;
  border-radius:var(--radius-pill);
  font-size:15px;
  color:var(--ink-700);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-links a:hover{background:var(--brand-100);color:var(--brand-600);}
.nav-links a.active{
  color:var(--brand-600);
  background:var(--brand-100);
  font-weight:600;
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-500);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.icon-btn:hover{color:var(--brand-600);border-color:var(--brand-100);background:var(--brand-100);}
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  background:var(--brand-500);
  color:#fff;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  transition:background .2s var(--ease),transform .18s var(--ease),box-shadow .2s var(--ease);
}
.btn-main:hover{background:var(--brand-600);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(20,85,159,.24);}
.btn-main:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  border-radius:var(--radius-sm);
  border:1px solid var(--brand-500);
  background:#fff;
  color:var(--brand-500);
  font-size:15px;
  font-weight:600;
  transition:background .2s var(--ease),color .2s var(--ease),transform .18s var(--ease);
}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-600);transform:translateY(-1px);}
.btn-soft{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 18px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.85);
  border:1px solid var(--line);
  color:var(--brand-600);
  font-size:14px;
  font-weight:600;
}
.btn-soft:hover{background:#fff;border-color:var(--brand-400);color:var(--brand-600);}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--brand-500);
}
.link-arrow i{transition:transform .2s var(--ease);font-size:12px;}
.link-arrow:hover i{transform:translateX(4px);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-700);
  align-items:center;justify-content:center;
  font-size:18px;
}
.nav-toggle:hover{background:var(--brand-100);color:var(--brand-600);}

.offcanvas{background:rgba(255,255,255,.97);}
.offcanvas-header{border-bottom:1px solid var(--line);padding:20px 24px;}
.offcanvas-title{font-size:17px;font-weight:700;color:var(--ink-900);}
.offcanvas-body{padding:16px 24px 32px;}
.drawer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px;}
.drawer-links a{
  display:block;
  padding:14px 12px;
  font-size:17px;
  color:var(--ink-700);
  border-radius:12px;
}
.drawer-links a:hover{background:var(--brand-100);color:var(--brand-600);}
.drawer-links a.active{background:var(--brand-100);color:var(--brand-600);font-weight:600;}
.drawer-cta{margin-top:24px;}

/* ---------- 文章头部 ---------- */
.page-head{
  position:relative;
  padding:132px 0 48px;
  background:#fff;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-head::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  opacity:.16;
  filter:saturate(.9);
  pointer-events:none;
}
.page-head .wrap{position:relative;}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-300);
  margin-bottom:22px;
}
.crumbs a{color:var(--ink-500);}
.crumbs a:hover{color:var(--brand-600);}
.crumbs .sep{color:var(--ink-300);}
.crumbs .now{color:var(--ink-900);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{
  max-width:860px;
  margin:0;
  font-size:44px;
  line-height:1.22;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink-900);
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
  margin-top:24px;
  padding-top:18px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--ink-500);
}
.badge-cat{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 14px;
  border-radius:var(--radius-pill);
  background:var(--brand-100);
  color:var(--brand-600);
  font-size:13px;
  font-weight:600;
}
.badge-teal{
  background:var(--teal-100);
  color:var(--teal-500);
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--line);}
.head-tools{margin-left:auto;display:flex;align-items:center;gap:10px;}

/* ---------- 正文 ---------- */
.article-main{padding:64px 0 var(--section-y);}
.article-shell{
  max-width:760px;
  margin:0 auto;
}
.article-body{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  padding:48px;
  box-shadow:var(--shadow-card);
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink-700);
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  margin:40px 0 16px;
  font-size:28px;
  line-height:1.35;
  font-weight:700;
  color:var(--ink-900);
  letter-spacing:-.01em;
}
.article-body h3{
  margin:28px 0 12px;
  font-size:21px;
  line-height:1.4;
  font-weight:700;
  color:var(--ink-900);
}
.article-body h4{
  margin:24px 0 10px;
  font-size:18px;
  font-weight:700;
  color:var(--ink-900);
}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.35em;}
.article-body li{margin-bottom:.5em;}
.article-body li::marker{color:var(--brand-500);}
.article-body a{
  color:var(--brand-500);
  border-bottom:1px solid rgba(30,104,200,.28);
}
.article-body a:hover{color:var(--brand-600);border-bottom-color:var(--brand-600);}
.article-body blockquote{
  margin:1.6em 0;
  padding:18px 22px;
  border-left:3px solid var(--brand-400);
  background:var(--brand-100);
  border-radius:0 12px 12px 0;
  color:var(--ink-700);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  width:100%;
  height:auto;
  border-radius:12px;
  margin:1.6em 0 .6em;
}
.article-body figure{margin:1.6em 0;}
.article-body figcaption,
.article-body .caption{
  font-size:13px;
  color:var(--ink-300);
  text-align:center;
  margin-bottom:1.4em;
}
.article-body code{
  background:#F1F5FB;
  border-radius:6px;
  padding:2px 6px;
  font-size:14px;
  color:var(--brand-600);
}
.article-body pre{
  background:#F1F5FB;
  border:1px solid var(--line);
  border-radius:12px;
  padding:18px 20px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
  margin:1.6em 0;
}
.article-body pre code{background:none;padding:0;color:var(--ink-700);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0;}
.article-body strong{color:var(--ink-900);}

.empty-state{
  background:var(--bg-card);
  border:1px dashed var(--line);
  border-radius:var(--radius-xl);
  padding:64px 32px;
  text-align:center;
}
.empty-state i{font-size:34px;color:var(--ink-300);}
.empty-state h2{margin:18px 0 8px;font-size:22px;color:var(--ink-900);font-weight:700;}
.empty-state p{margin:0 0 22px;color:var(--ink-500);font-size:15px;}

.back-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-top:28px;
  padding-top:22px;
  border-top:1px solid var(--line);
  font-size:14px;
  color:var(--ink-500);
}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 var(--section-y);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:32px;
}
.section-head h2{
  margin:0;
  font-size:30px;
  line-height:1.3;
  font-weight:700;
  color:var(--ink-900);
  letter-spacing:-.01em;
}
.section-head p{margin:8px 0 0;font-size:15px;color:var(--ink-500);}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.rel-card{
  display:flex;
  flex-direction:column;
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--brand-100);}
.rel-thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--brand-100);
}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-thumb .tag{
  position:absolute;
  top:12px;left:12px;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.92);
  color:var(--brand-600);
  font-size:12px;
  font-weight:600;
}
.rel-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.rel-body h3{
  margin:0 0 10px;
  font-size:18px;
  line-height:1.45;
  font-weight:700;
  color:var(--ink-900);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rel-body p{
  margin:0 0 18px;
  font-size:14px;
  line-height:1.7;
  color:var(--ink-500);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rel-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--ink-300);
}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(180deg,#EAF2FD,#F7F9FC);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:72px 0;
}
.cta-inner{
  display:grid;
  grid-template-columns:1.4fr .9fr;
  gap:40px;
  align-items:center;
}
.cta-inner h2{
  margin:0 0 12px;
  font-size:30px;
  line-height:1.3;
  font-weight:700;
  color:var(--ink-900);
  letter-spacing:-.01em;
}
.cta-inner p{margin:0;font-size:15.5px;color:var(--ink-500);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-700);
  color:rgba(255,255,255,.88);
  padding:64px 0 32px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:36px;
}
.f-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:17px;
  font-weight:700;
  margin-bottom:14px;
}
.f-brand:hover{color:#fff;}
.f-brand .brand-mark{background:rgba(255,255,255,.14);box-shadow:none;}
.site-footer p{margin:0;font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);}
.site-footer h4{
  margin:0 0 16px;
  font-size:15px;
  font-weight:700;
  color:#fff;
}
.site-footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.site-footer ul a,
.site-footer ul span{font-size:14px;color:rgba(255,255,255,.76);}
.site-footer ul a:hover{color:#fff;transform:translateX(4px);display:inline-block;}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.16);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.62);
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

@media (max-width:1199px){
  .article-title{font-size:40px;}
}
@media (max-width:991px){
  :root{--section-y:72px;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-inner{gap:16px;height:66px;}
  .nav-actions .btn-main{padding:10px 18px;font-size:14px;}
  .article-title{font-size:34px;}
  .article-body{padding:32px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-inner{grid-template-columns:1fr;gap:24px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  :root{--section-y:56px;}
  .wrap{padding:0 16px;}
  .page-head{padding:110px 0 36px;}
  .article-title{font-size:30px;}
  .article-meta{gap:10px;font-size:12.5px;}
  .head-tools{margin-left:0;width:100%;}
  .article-main{padding:40px 0 var(--section-y);}
  .article-body{padding:22px;border-radius:var(--radius);font-size:16px;line-height:1.85;}
  .article-body h2{font-size:22px;margin-top:32px;}
  .article-body h3{font-size:19px;margin-top:24px;}
  .card-grid{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;}
  .section-head h2{font-size:24px;}
  .cta-band{padding:48px 0;}
  .cta-inner h2{font-size:24px;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;min-height:44px;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{flex-direction:column;}
  .crumbs .now{white-space:normal;}
}
@media (max-width:519px){
  .article-title{font-size:27px;line-height:1.3;}
  .brand span:last-child{font-size:16px;}
  .nav-actions .btn-main{display:none;}
}

/* roulang page: category1 */
:root{
  --brand-500:#1E68C8;
  --brand-600:#14559F;
  --brand-700:#0F3E7A;
  --brand-400:#3E86E0;
  --brand-100:#E3EEFB;
  --teal-500:#0FA3A0;
  --teal-100:#E2F5F4;
  --coral-500:#F2633C;
  --coral-100:#FDEBE5;
  --ink-900:#10203A;
  --ink-700:#2B3B54;
  --ink-500:#5A6B83;
  --ink-300:#93A2B8;
  --line:#E4EAF3;
  --bg-page:#F7F9FC;
  --bg-card:#FFFFFF;
  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:20px;
  --shadow-1:0 1px 2px rgba(16,32,58,.04), 0 8px 24px rgba(16,32,58,.06);
  --shadow-2:0 16px 40px rgba(16,32,58,.10);
  --ease:cubic-bezier(.2,.7,.3,1);

  --bs-primary:#1E68C8;
  --bs-body-color:#2B3B54;
  --bs-body-bg:#F7F9FC;
  --bs-border-color:#E4EAF3;
  --bs-link-color:#14559F;
  --bs-link-hover-color:#0F3E7A;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-700);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-700);}
h1,h2,h3,h4{color:var(--ink-900);margin:0;letter-spacing:-.01em;}
p{margin:0 0 1.2em;}
ul{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}

.wrap{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1030;
  background:rgba(255,255,255,.62);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  backdrop-filter:blur(14px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.7);
  box-shadow:0 1px 2px rgba(16,32,58,.03);
  transition:background .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-stuck{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--line);
  box-shadow:0 4px 18px rgba(16,32,58,.07);
}
.nav-inner{
  max-width:1200px;
  margin:0 auto;
  padding:14px 24px;
  display:flex;
  align-items:center;
  gap:28px;
}
.nav-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:17px;
  color:var(--ink-900);
  white-space:nowrap;
}
.nav-brand:hover{color:var(--brand-600);}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:11px;
  background:var(--brand-500);
  color:#fff;
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  flex:0 0 auto;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  margin-left:8px;
  flex:1 1 auto;
}
.nav-links a{
  display:inline-block;
  padding:8px 14px;
  font-size:15px;
  color:var(--ink-700);
  border-radius:999px;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.nav-links a:hover{background:var(--brand-100);color:var(--brand-600);}
.nav-links a.active{background:var(--brand-100);color:var(--brand-600);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:10px;}
.btn-nav{
  display:inline-block;
  padding:9px 20px;
  font-size:15px;
  font-weight:600;
  color:#fff;
  background:var(--brand-500);
  border-radius:10px;
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-nav:hover{background:var(--brand-600);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(30,104,200,.24);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  background:#fff;
  border-radius:10px;
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.nav-toggle span{
  display:block;width:18px;height:2px;background:var(--ink-700);border-radius:2px;position:relative;
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-700);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.drawer{
  position:fixed;
  top:0;right:0;
  height:100%;
  width:min(320px,86vw);
  background:rgba(255,255,255,.96);
  box-shadow:-14px 0 40px rgba(16,32,58,.14);
  transform:translateX(102%);
  transition:transform .28s var(--ease);
  z-index:1040;
  padding:22px 20px;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer a{
  display:block;
  font-size:17px;
  padding:13px 12px;
  border-radius:12px;
  color:var(--ink-900);
}
.drawer a:hover{background:var(--brand-100);color:var(--brand-600);}
.drawer a.active{background:var(--brand-100);color:var(--brand-600);font-weight:600;}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:10px;
  font-size:18px;color:var(--ink-500);cursor:pointer;margin-bottom:10px;
}
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,32,58,.32);
  opacity:0;pointer-events:none;transition:opacity .28s var(--ease);z-index:1035;
}
.drawer-mask.open{opacity:1;pointer-events:auto;}

/* ---------- 内页 banner ---------- */
.page-banner{
  position:relative;
  padding:150px 0 76px;
  background:linear-gradient(180deg,rgba(255,255,255,.86) 0%,rgba(255,255,255,.94) 62%,#F7F9FC 100%),
             url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid var(--line);
}
.page-banner .crumb{
  font-size:13px;
  color:var(--ink-300);
  margin-bottom:16px;
}
.page-banner .crumb a{color:var(--ink-500);}
.page-banner .crumb a:hover{color:var(--brand-600);}
.page-banner .crumb .sep{margin:0 8px;color:var(--ink-300);}
.page-banner h1{
  font-size:46px;
  font-weight:700;
  line-height:1.2;
  margin-bottom:16px;
  max-width:820px;
}
.page-banner .lead{
  font-size:17px;
  color:var(--ink-500);
  max-width:760px;
  margin-bottom:24px;
}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-block;
  padding:6px 14px;
  font-size:13px;
  border-radius:999px;
  background:var(--brand-100);
  color:var(--brand-600);
}
.tag.live{
  background:var(--coral-100);
  color:#B93B1B;
  font-weight:600;
}
.tag.teal{background:var(--teal-100);color:#0A7775;}
.dot{
  display:inline-block;
  width:6px;height:6px;border-radius:50%;
  background:var(--coral-500);
  margin-right:6px;
  vertical-align:middle;
  animation:pulse 1.8s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(242,99,60,.5);}
  70%{box-shadow:0 0 0 8px rgba(242,99,60,0);}
  100%{box-shadow:0 0 0 0 rgba(242,99,60,0);}
}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0;}
.section.tight{padding:64px 0;}
.section-head{margin-bottom:32px;}
.section-head h2{font-size:32px;font-weight:700;line-height:1.3;}
.section-head p{color:var(--ink-500);margin:12px 0 0;max-width:720px;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.08em;
  color:var(--brand-500);
  font-weight:600;
  margin-bottom:10px;
  text-transform:uppercase;
}
.card{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-100);}

/* ---------- 左窄栏 ---------- */
.side-col{position:sticky;top:96px;}
.side-intro{
  background:var(--brand-100);
  border-radius:var(--radius-md);
  padding:24px;
  margin-bottom:20px;
  border:1px solid #D3E3FA;
}
.side-intro h3{font-size:18px;margin-bottom:10px;}
.side-intro p{font-size:14px;color:var(--ink-500);margin:0;}
.side-nav{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:12px;
  box-shadow:var(--shadow-1);
}
.side-nav h4{
  font-size:13px;
  color:var(--ink-300);
  letter-spacing:.06em;
  padding:8px 12px 10px;
  font-weight:600;
}
.side-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:11px 12px;
  font-size:15px;
  color:var(--ink-700);
  border-radius:10px;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.side-nav a:hover{background:var(--bg-page);color:var(--brand-600);}
.side-nav a.current{background:var(--brand-100);color:var(--brand-600);font-weight:600;}
.side-nav a .num{
  font-size:12px;
  color:var(--ink-300);
  font-variant-numeric:tabular-nums;
}
.side-stat{
  margin-top:20px;
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:20px 24px;
  box-shadow:var(--shadow-1);
}
.side-stat div{display:flex;justify-content:space-between;align-items:baseline;padding:8px 0;border-bottom:1px dashed var(--line);}
.side-stat div:last-child{border-bottom:none;padding-bottom:0;}
.side-stat span:first-child{font-size:13px;color:var(--ink-500);}
.side-stat span:last-child{font-size:20px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;}

/* ---------- 预告条列表 ---------- */
.entry{
  display:flex;
  gap:24px;
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:20px;
  margin-bottom:18px;
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  scroll-margin-top:110px;
}
.entry:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-100);}
.entry-media{
  flex:0 0 300px;
  width:300px;
  aspect-ratio:4/3;
  border-radius:var(--radius-sm);
  overflow:hidden;
  position:relative;
  background:var(--brand-100);
}
.entry-media img{width:100%;height:100%;object-fit:cover;}
.entry-badge{
  position:absolute;
  left:12px;top:12px;
  padding:5px 12px;
  font-size:12px;
  border-radius:999px;
  background:rgba(255,255,255,.92);
  color:var(--brand-600);
  font-weight:600;
}
.entry-badge.now{background:var(--coral-500);color:#fff;}
.entry-body{flex:1 1 auto;display:flex;flex-direction:column;min-width:0;}
.entry-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  align-items:center;
  font-size:13px;
  color:var(--ink-300);
  margin-bottom:10px;
}
.entry-meta .chip{
  padding:4px 10px;
  border-radius:999px;
  background:var(--brand-100);
  color:var(--brand-600);
  font-size:12px;
}
.entry-body h3{font-size:21px;line-height:1.4;margin-bottom:10px;}
.entry-body p{font-size:15px;color:var(--ink-500);margin-bottom:14px;}
.entry-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-top:14px;
  border-top:1px solid var(--line);
}
.entry-time{
  font-size:14px;
  color:var(--ink-700);
  font-weight:600;
  font-variant-numeric:tabular-nums;
}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--brand-500);
}
.link-arrow .arw{transition:transform .2s var(--ease);}
.link-arrow:hover{color:var(--brand-700);}
.link-arrow:hover .arw{transform:translateX(4px);}

/* ---------- 回放入口 ---------- */
.replay-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.replay-card{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  display:block;
}
.replay-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-100);}
.replay-thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--brand-100);
}
.replay-thumb img{width:100%;height:100%;object-fit:cover;}
.duration{
  position:absolute;
  right:10px;bottom:10px;
  padding:3px 9px;
  font-size:12px;
  border-radius:6px;
  background:rgba(16,32,58,.72);
  color:#fff;
  font-variant-numeric:tabular-nums;
}
.replay-body{padding:18px 20px 20px;}
.replay-body h3{font-size:17px;line-height:1.45;margin-bottom:8px;}
.replay-body .date{font-size:13px;color:var(--ink-300);font-variant-numeric:tabular-nums;}
.replay-all{
  background:var(--brand-100);
  border:1px solid #D3E3FA;
  border-radius:var(--radius-md);
  padding:26px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:12px;
  min-height:100%;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.replay-all:hover{transform:translateY(-3px);box-shadow:var(--shadow-1);}
.replay-all strong{font-size:19px;color:var(--brand-700);}
.replay-all span{font-size:14px;color:var(--ink-500);}

/* ---------- 订阅表单 ---------- */
.subscribe{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:32px;
  display:flex;
  gap:32px;
  align-items:center;
  justify-content:space-between;
}
.subscribe h2{font-size:26px;margin-bottom:8px;}
.subscribe p{font-size:14px;color:var(--ink-500);margin:0;}
.sub-form{display:flex;gap:12px;align-items:flex-start;flex:0 0 460px;max-width:460px;}
.sub-form .field{flex:1 1 auto;}
.form-control{
  width:100%;
  padding:12px 16px;
  font-size:15px;
  color:var(--ink-900);
  background:#fff;
  border:1px solid var(--line);
  border-radius:10px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.form-control::placeholder{color:var(--ink-300);}
.form-control:focus{
  outline:none;
  border-color:var(--brand-500);
  box-shadow:0 0 0 3px rgba(30,104,200,.15);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 24px;
  font-size:15px;
  font-weight:600;
  border-radius:10px;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{background:var(--brand-500);color:#fff;}
.btn-primary:hover{background:var(--brand-600);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(30,104,200,.24);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-outline{background:#fff;color:var(--brand-500);border-color:var(--brand-500);}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-600);}
.btn-ghost{background:#fff;color:var(--brand-600);border-color:#CFE0F6;}
.btn-ghost:hover{background:var(--brand-100);color:var(--brand-700);}
.form-note{font-size:13px;color:var(--ink-300);margin:10px 0 0;}
.form-msg{font-size:14px;margin:10px 0 0;display:none;}
.form-msg.ok{display:block;color:var(--teal-500);font-weight:600;}
.form-msg.err{display:block;color:var(--coral-500);}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  font-size:17px;
  font-weight:600;
  color:var(--ink-900);
  background:none;
  border:none;
  text-align:left;
  cursor:pointer;
}
.faq-q .ico{
  flex:0 0 auto;
  width:22px;height:22px;
  position:relative;
}
.faq-q .ico::before,
.faq-q .ico::after{
  content:"";position:absolute;background:var(--brand-500);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.faq-q .ico::before{width:14px;height:2px;left:4px;top:10px;}
.faq-q .ico::after{width:2px;height:14px;left:10px;top:4px;}
.faq-item.open .faq-q{background:var(--brand-100);color:var(--brand-600);}
.faq-item.open .faq-q .ico::after{transform:scaleY(0);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s var(--ease);
}
.faq-a .inner{
  padding:4px 24px 22px;
  font-size:15px;
  color:var(--ink-500);
}
.faq-a .inner p:last-child{margin-bottom:0;}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:linear-gradient(135deg,#EAF3FE 0%,#F4F8FF 100%);
  border:1px solid #D8E7FA;
  border-radius:var(--radius-lg);
  padding:44px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:27px;margin-bottom:10px;}
.cta-band p{font-size:15px;color:var(--ink-500);margin:0;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-700);
  color:rgba(255,255,255,.88);
  padding:68px 0 26px;
  margin-top:88px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:40px;
}
.site-footer h4{
  color:#fff;
  font-size:15px;
  margin-bottom:16px;
  font-weight:600;
}
.site-footer p{font-size:14px;color:rgba(255,255,255,.72);line-height:1.85;margin:14px 0 0;}
.f-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:17px;
  font-weight:700;
}
.f-brand:hover{color:#fff;}
.f-brand .brand-mark{background:rgba(255,255,255,.16);}
.site-footer ul li{margin-bottom:10px;}
.site-footer ul a{
  font-size:14px;
  color:rgba(255,255,255,.82);
  display:inline-block;
  transition:transform .2s var(--ease),color .2s var(--ease);
}
.site-footer ul a:hover{color:#fff;transform:translateX(4px);}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.16);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.66);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .entry-media{flex:0 0 260px;width:260px;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .btn-nav{display:none;}
  .page-banner{padding:126px 0 60px;}
  .page-banner h1{font-size:36px;}
  .section{padding:72px 0;}
  .side-col{position:static;margin-bottom:28px;}
  .subscribe{flex-direction:column;align-items:stretch;gap:20px;}
  .sub-form{flex:0 1 auto;max-width:none;}
  .replay-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .wrap{padding:0 16px;}
  .nav-inner{padding:12px 16px;}
  .page-banner{padding:112px 0 48px;}
  .page-banner h1{font-size:31px;}
  .page-banner .lead{font-size:16px;}
  .section{padding:56px 0;}
  .section-head h2{font-size:26px;}
  .entry{flex-direction:column;gap:16px;padding:16px;}
  .entry-media{flex:none;width:100%;}
  .entry-body h3{font-size:19px;}
  .replay-grid{grid-template-columns:1fr;}
  .subscribe{padding:24px;}
  .sub-form{flex-direction:column;align-items:stretch;}
  .sub-form .btn{min-height:46px;width:100%;}
  .cta-band{padding:28px;}
  .cta-band h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;min-height:46px;}
  .faq-q{padding:16px 18px;font-size:16px;}
  .faq-a .inner{padding:4px 18px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .site-footer{padding:52px 0 22px;margin-top:56px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --brand-500:#1E68C8;
  --brand-600:#14559F;
  --brand-700:#0F3E7A;
  --brand-400:#3E86E0;
  --brand-100:#E3EEFB;
  --teal-500:#0FA3A0;
  --teal-100:#E2F5F4;
  --coral-500:#F2633C;
  --coral-100:#FDEBE5;
  --ink-900:#10203A;
  --ink-700:#2B3B54;
  --ink-500:#5A6B83;
  --ink-300:#93A2B8;
  --line:#E4EAF3;
  --bg-page:#F7F9FC;
  --bg-card:#FFFFFF;
  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:20px;
  --shadow-card:0 1px 2px rgba(16,32,58,.04), 0 8px 24px rgba(16,32,58,.06);
  --shadow-hover:0 16px 40px rgba(16,32,58,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --bs-primary:#1E68C8;
  --bs-body-color:#2B3B54;
  --bs-body-bg:#F7F9FC;
  --bs-border-color:#E4EAF3;
  --bs-link-color:#1E68C8;
  --bs-link-hover-color:#14559F;
  --bs-font-sans-serif:system-ui,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.75;
  color:var(--ink-700);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
a{color:var(--brand-500);text-decoration:none;transition:color .18s var(--ease),background-color .18s var(--ease);}
a:hover{color:var(--brand-600);}
img{display:block;max-width:100%;height:auto;}
button,input{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* 顶部导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(255,255,255,.62);
  -webkit-backdrop-filter:blur(14px) saturate(160%);
  backdrop-filter:blur(14px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.7);
  box-shadow:0 1px 2px rgba(16,32,58,.03);
  transition:background-color .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.site-header.is-stuck{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--line);
  box-shadow:0 6px 22px rgba(16,32,58,.08);
}
@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  .site-header{background:#fff;}
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--ink-900);letter-spacing:-.01em;white-space:nowrap;}
.logo:hover{color:var(--brand-600);}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:44px;height:32px;padding:0 8px;
  background:var(--brand-500);color:#fff;border-radius:9px;
  font-size:14px;font-weight:700;letter-spacing:.04em;
}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  display:inline-block;padding:8px 16px;border-radius:999px;
  font-size:15px;color:var(--ink-700);line-height:1.4;
}
.nav-links a:hover{background:var(--brand-100);color:var(--brand-600);}
.nav-links a.active{background:var(--brand-100);color:var(--brand-600);font-weight:600;box-shadow:inset 0 -2px 0 var(--brand-500);}
.header-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--ink-500);cursor:pointer;transition:all .18s var(--ease);
}
.icon-btn:hover{border-color:var(--brand-400);color:var(--brand-500);background:var(--brand-100);}
.btn-primary-c{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:12px 24px;border-radius:var(--radius-sm);border:1px solid transparent;
  background:var(--brand-500);color:#fff;font-size:15px;font-weight:600;cursor:pointer;
  transition:all .2s var(--ease);
}
.btn-primary-c:hover{background:var(--brand-600);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(30,104,200,.24);}
.btn-primary-c:active{transform:translateY(0);box-shadow:none;}
.btn-outline-c{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:12px 24px;border-radius:var(--radius-sm);border:1px solid var(--brand-500);
  background:#fff;color:var(--brand-500);font-size:15px;font-weight:600;cursor:pointer;
  transition:all .2s var(--ease);
}
.btn-outline-c:hover{background:var(--brand-100);color:var(--brand-600);transform:translateY(-1px);}
.btn-ghost-c{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:11px 22px;border-radius:var(--radius-sm);border:1px solid rgba(30,104,200,.18);
  background:#fff;color:var(--brand-600);font-size:15px;font-weight:600;cursor:pointer;
  transition:all .2s var(--ease);
}
.btn-ghost-c:hover{background:#fff;border-color:var(--brand-400);box-shadow:0 8px 20px rgba(30,104,200,.14);}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-500);}
.link-more span{transition:transform .18s var(--ease);}
.link-more:hover span{transform:translateX(4px);}
.menu-btn{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink-700);align-items:center;justify-content:center;cursor:pointer;}
.menu-btn:hover{background:var(--brand-100);color:var(--brand-600);}

/* 抽屉导航 */
.offcanvas{background:rgba(255,255,255,.96);}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px;}
.offcanvas-body{padding:18px 22px;}
.drawer-links a{
  display:block;padding:14px 4px;font-size:17px;color:var(--ink-700);
  border-bottom:1px solid var(--line);
}
.drawer-links a:hover{color:var(--brand-600);}
.drawer-links a.active{color:var(--brand-600);font-weight:600;}
.drawer-cta{margin-top:22px;display:block;text-align:center;}

/* 内页横幅 */
.page-hero{
  position:relative;padding:150px 0 68px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.page-hero::before{content:"";position:absolute;inset:0;background:rgba(255,255,255,.86);}
.page-hero .wrap{position:relative;z-index:2;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-300);margin-bottom:18px;}
.crumb a{color:var(--ink-500);}
.crumb a:hover{color:var(--brand-500);}
.crumb .sep{color:var(--ink-300);}
.crumb .current{color:var(--ink-900);}
.page-hero h1{font-size:clamp(30px,4.2vw,46px);line-height:1.2;max-width:900px;}
.page-hero .lead{margin-top:18px;font-size:17px;color:var(--ink-500);max-width:780px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.fact{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:16px 20px;min-width:170px;box-shadow:var(--shadow-card);
}
.fact b{display:block;font-size:22px;color:var(--brand-700);font-variant-numeric:tabular-nums;}
.fact span{font-size:13px;color:var(--ink-500);}

/* 区块 */
.section{padding:88px 0;}
.section.tight{padding:64px 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:32px;}
.section-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;}
.section-head p{margin-top:10px;color:var(--ink-500);font-size:15px;max-width:680px;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.chip{
  display:inline-flex;align-items:center;padding:8px 18px;border-radius:999px;
  font-size:13px;color:var(--ink-700);background:#fff;border:1px solid var(--line);
  transition:all .18s var(--ease);
}
.chip:hover{border-color:var(--brand-400);color:var(--brand-600);}
.chip.is-active{background:var(--brand-100);color:var(--brand-600);border-color:transparent;font-weight:600;}

/* 指南卡片网格 */
.guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
.guide-card{
  display:flex;flex-direction:column;background:var(--bg-card);
  border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;
  box-shadow:var(--shadow-card);transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.guide-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--brand-100);}
.thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--brand-100);}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease);}
.guide-card:hover .thumb img{transform:scale(1.03);}
.badge-float{
  position:absolute;top:14px;left:14px;padding:5px 12px;border-radius:999px;
  font-size:13px;background:var(--brand-100);color:var(--brand-600);font-weight:600;
}
.badge-live{
  position:absolute;top:14px;left:14px;display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:13px;font-weight:600;
  background:var(--coral-500);color:#fff;
}
.dot-pulse{width:6px;height:6px;border-radius:50%;background:#fff;animation:pulse 1.6s infinite;}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.75);}}
.card-body-c{display:flex;flex-direction:column;gap:12px;padding:24px;flex:1;}
.card-body-c h3{font-size:19px;line-height:1.45;}
.card-body-c p{font-size:15px;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line);}
.card-foot time{font-size:13px;color:var(--ink-300);font-variant-numeric:tabular-nums;}
.card-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-500);}
.card-arrow i{font-style:normal;transition:transform .18s var(--ease);}
.guide-card:hover .card-arrow i{transform:translateX(4px);}

/* 重点说明 */
.divider-line{height:1px;background:var(--line);margin:0 0 40px;}
.highlight-box{
  background:var(--brand-100);border-radius:var(--radius-md);padding:36px;
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:36px;align-items:center;
}
.highlight-box h2{font-size:clamp(22px,2.4vw,28px);line-height:1.35;}
.highlight-box p{margin-top:14px;color:var(--ink-500);font-size:15px;}
.highlight-list{display:grid;gap:12px;}
.highlight-list li{
  display:flex;gap:12px;align-items:flex-start;background:#fff;border-radius:12px;
  padding:14px 16px;font-size:15px;color:var(--ink-700);border:1px solid rgba(30,104,200,.10);
}
.tick{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:var(--teal-100);color:var(--teal-500);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;
}

/* 步骤轴 */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;position:relative;}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);padding:24px;box-shadow:var(--shadow-card);transition:all .2s var(--ease);}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--brand-100);}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;
  background:var(--brand-100);color:var(--brand-600);border-radius:10px;font-weight:700;font-size:15px;
  font-variant-numeric:tabular-nums;
}
.step h3{margin-top:16px;font-size:18px;line-height:1.45;}
.step p{margin-top:8px;font-size:14px;color:var(--ink-500);}

/* FAQ */
.faq-list{display:grid;gap:12px;}
.accordion-item-c{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-card);overflow:hidden;}
.accordion-button{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;background:#fff;border:0;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink-900);cursor:pointer;transition:background-color .18s var(--ease),color .18s var(--ease);
}
.accordion-button:hover{background:var(--brand-100);color:var(--brand-600);}
.accordion-button::after{
  content:"";flex:0 0 auto;width:10px;height:10px;margin-right:2px;
  border-right:2px solid var(--ink-300);border-bottom:2px solid var(--ink-300);
  transform:rotate(45deg);transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.accordion-button:not(.collapsed){color:var(--brand-600);background:var(--brand-100);}
.accordion-button:not(.collapsed)::after{transform:rotate(-135deg);border-color:var(--brand-600);}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--brand-500);outline-offset:-2px;}
.accordion-body-c{padding:0 24px 22px;font-size:15px;color:var(--ink-500);background:var(--brand-100);}

/* 订阅 CTA */
.cta-band{
  background:var(--brand-100);border-radius:var(--radius-lg);padding:44px;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:36px;align-items:center;
}
.cta-band h2{font-size:clamp(22px,2.4vw,28px);line-height:1.35;}
.cta-band p{margin-top:12px;color:var(--ink-500);font-size:15px;}
.sub-form{display:flex;gap:12px;}
.form-control-c{
  flex:1 1 auto;min-width:0;padding:12px 16px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#fff;color:var(--ink-900);font-size:15px;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.form-control-c::placeholder{color:var(--ink-300);}
.form-control-c:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(30,104,200,.15);}
.form-note{margin-top:12px;font-size:13px;color:var(--ink-300);}
.msg-ok{margin-top:12px;font-size:14px;color:var(--teal-500);background:var(--teal-100);border-radius:10px;padding:10px 14px;}
.msg-err{margin-top:12px;font-size:13px;color:var(--coral-500);background:var(--coral-100);border-radius:10px;padding:10px 14px;}

/* 返回入口条 */
.back-bar{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;padding:26px 0 0;}

/* 页脚 */
.site-footer{background:var(--brand-700);color:rgba(255,255,255,.88);padding:70px 0 26px;margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:18px;letter-spacing:0;}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.72);margin-top:16px;max-width:360px;}
.f-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;}
.f-brand:hover{color:#fff;}
.f-brand .brand-mark{background:rgba(255,255,255,.16);}
.site-footer ul{display:grid;gap:12px;}
.site-footer ul a,.site-footer ul span{color:rgba(255,255,255,.82);font-size:14px;}
.site-footer ul a:hover{color:#fff;transform:translateX(-4px);display:inline-block;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.18);padding-top:22px;font-size:13px;color:rgba(255,255,255,.62);
}

@media (max-width:1024px){
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .menu-btn{display:inline-flex;}
  .header-actions .btn-primary-c{display:none;}
  .highlight-box,.cta-band{grid-template-columns:1fr;gap:26px;padding:30px;}
  .section{padding:72px 0;}
  .section.tight{padding:56px 0;}
  .page-hero{padding:132px 0 56px;}
}
@media (max-width:768px){
  .wrap{padding:0 16px;}
  .guide-grid{grid-template-columns:1fr;gap:22px;}
  .card-body-c{padding:20px;}
  .sub-form{flex-direction:column;}
  .sub-form .btn-primary-c{width:100%;min-height:44px;}
  .page-hero{padding:120px 0 48px;}
  .page-hero .lead{font-size:16px;}
  .steps{grid-template-columns:1fr;}
  .section{padding:56px 0;}
  .section.tight{padding:48px 0;}
}
@media (max-width:520px){
  .logo{font-size:17px;}
  .logo span:last-child{max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
  .hero-facts{gap:10px;}
  .fact{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;}
  html{scroll-behavior:auto;}
}