/* roulang page: index */
:root{
  --ink:#1B1A16;--ink-2:#5F5A50;--ink-3:#8C867A;
  --paper:#F6F2EA;--surface:#FFFFFF;--surface-2:#EFEAE0;
  --line:#E4DED2;--line-strong:#D2CABB;
  --brand:#1F3B34;--brand-deep:#162C27;--brand-soft:#E7EDEA;
  --accent:#C0562A;--accent-deep:#A84A23;--accent-soft:#F3E3D8;--accent-light:#DE8A5D;
  --live:#CF4A2E;--replay:#3F5F57;
  --r-sm:8px;--r-md:12px;--r-lg:16px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(27,26,22,.05),0 6px 20px -12px rgba(27,26,22,.14);
  --sh-2:0 2px 4px rgba(27,26,22,.06),0 14px 32px -14px rgba(27,26,22,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:180ms var(--ease);
  --font-serif:'Noto Serif SC','Songti SC',serif;
  --font-sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--font-sans);font-size:17px;line-height:1.85;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--accent)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:600;letter-spacing:.01em;line-height:1.4;color:var(--ink)}
h1{font-size:44px;line-height:1.3}
h2{font-size:30px;line-height:1.38}
h3{font-size:20px;line-height:1.5}
h4{font-size:17px;line-height:1.6}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,
.accordion-button:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{max-width:1200px!important;padding-left:24px;padding-right:24px}
@media (max-width:767.98px){.container{padding-left:16px;padding-right:16px}}
.section{padding:96px 0}
@media (max-width:991.98px){.section{padding:72px 0}}
@media (max-width:767.98px){.section{padding:56px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px}
.section-head .sh-title h2{font-size:30px}
.section-head .sh-title p{margin:8px 0 0;font-size:15px;color:var(--ink-2);line-height:1.7}
@media (max-width:767.98px){
  h1{font-size:30px}
  h2{font-size:24px}
  h3{font-size:18px}
  h4{font-size:16px}
  body{font-size:16px}
  .section-head{margin-bottom:28px}
  .section-head .sh-title h2{font-size:24px}
}
/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  height:76px;display:flex;align-items:center;
  background:transparent;border-bottom:1px solid transparent;
  transition:background var(--t),border-color var(--t),box-shadow var(--t),height var(--t);
}
.site-header.is-solid{
  background:rgba(246,242,234,.96);
  -webkit-backdrop-filter:saturate(140%) blur(10px);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(27,26,22,.03);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%}
.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);flex:0 0 auto}
.brand-mark{font-family:var(--font-serif);font-weight:700;font-size:22px;letter-spacing:-.045em;line-height:1}
.brand-divider{width:1px;height:18px;background:var(--line-strong);display:inline-block}
.brand-cn{font-size:13.5px;letter-spacing:.08em;color:var(--ink-2);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:24px;margin:0 auto}
.nav-link{
  position:relative;display:inline-block;font-size:14px;font-weight:400;
  color:var(--ink-2);text-decoration:none;padding:6px 0;white-space:nowrap;
  transition:color var(--t);
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:-4px;height:2px;width:0;
  background:var(--accent);transition:width var(--t);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after,.nav-link.is-active::after{width:100%}
.nav-link.is-active{color:var(--ink);font-weight:500}
.nav-right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:0;border-radius:var(--r-sm);color:var(--ink-2);
  cursor:pointer;transition:color var(--t),background var(--t);
}
.icon-btn:hover{color:var(--ink);background:rgba(27,26,22,.05)}
.icon-btn svg{width:18px;height:18px;stroke:currentColor;stroke-width:1.25;fill:none;stroke-linecap:round;stroke-linejoin:round}
.site-header:not(.is-solid) .brand-mark,
.site-header:not(.is-solid) .brand-cn,
.site-header:not(.is-solid) .nav-link,
.site-header:not(.is-solid) .icon-btn{color:#F2EDE2}
.site-header:not(.is-solid) .brand-divider{background:rgba(246,242,234,.42)}
.site-header:not(.is-solid) .nav-link.is-active{color:#FFFFFF}
.site-header:not(.is-solid) .icon-btn:hover{background:rgba(246,242,234,.14);color:#fff}
.nav-toggle{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:0;border-radius:var(--r-sm);color:var(--ink);cursor:pointer;
}
.site-header:not(.is-solid) .nav-toggle{color:#F2EDE2}
.nav-toggle span{display:block;width:20px;height:1.5px;background:currentColor;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:20px;height:1.5px;background:currentColor;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
@media (max-width:991.98px){
  .site-header{height:64px}
  .brand-mark{font-size:20px}
  .brand-cn{font-size:12.5px;letter-spacing:.06em}
}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-family:var(--font-sans);font-size:15px;font-weight:500;letter-spacing:.02em;
  border:1px solid transparent;text-decoration:none;cursor:pointer;white-space:nowrap;
  transition:background var(--t),color var(--t),border-color var(--t),box-shadow var(--t),transform var(--t);
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);border-color:var(--brand);color:var(--paper)}
.btn-primary:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:var(--paper);box-shadow:var(--sh-1)}
.btn-accent{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-deep);border-color:var(--accent-deep);color:#fff;box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;border-color:rgba(246,242,234,.42);color:#F6F2EA}
.btn-ghost:hover{background:rgba(246,242,234,.12);border-color:rgba(246,242,234,.8);color:#fff}
.btn-outline{background:transparent;border-color:var(--line-strong);color:var(--ink)}
.btn-outline:hover{background:transparent;border-color:var(--ink);color:var(--ink);box-shadow:var(--sh-1)}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;
  color:var(--ink-2);text-decoration:none;transition:color var(--t);
}
.link-arrow span{transition:transform var(--t);display:inline-block}
.link-arrow:hover{color:var(--accent)}
.link-arrow:hover span{transform:translateX(3px)}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px}
.link-arrow.on-dark{color:rgba(246,242,234,.78)}
.link-arrow.on-dark:hover{color:#fff}
/* ---------- Hero ---------- */
.hero{position:relative;background:var(--brand-deep);overflow:hidden;padding:150px 0 130px;min-height:600px;display:flex;align-items:center}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(22,44,39,.9) 0%,rgba(27,26,22,.66) 58%,rgba(27,26,22,.58) 100%);
}
.hero-content{position:relative;z-index:2;max-width:640px}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.18em;color:rgba(246,242,234,.72);
  margin:0 0 22px;text-transform:uppercase;
}
.hero-eyebrow::before{content:"";width:26px;height:1px;background:var(--accent-light)}
.hero h1{color:#FBF8F2;font-size:44px;line-height:1.28;margin:0 0 20px}
.hero-sub{font-size:17px;line-height:1.8;color:rgba(246,242,234,.82);margin:0 0 34px;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-note{font-size:12px;letter-spacing:.04em;color:rgba(246,242,234,.6);margin:0}
@media (max-width:991.98px){
  .hero{padding:128px 0 112px;min-height:auto}
  .hero h1{font-size:36px}
}
@media (max-width:767.98px){
  .hero{padding:112px 0 96px}
  .hero h1{font-size:30px;line-height:1.35}
  .hero-sub{font-size:16px;margin-bottom:28px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
}
/* ---------- 直播深色区 ---------- */
.live-section{position:relative;z-index:3;margin-top:-56px;padding-bottom:0}
.live-panel{
  background:var(--brand-deep);color:#F1EDE3;border-radius:var(--r-lg);
  padding:48px;box-shadow:var(--sh-2);
}
.live-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.live-head h2{color:#FBF8F2;font-size:28px}
.live-head p{margin:8px 0 0;font-size:14px;color:rgba(241,237,227,.62);line-height:1.7}
.live-cover{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.04);
  aspect-ratio:16/9;
}
.live-cover img{width:100%;height:100%;object-fit:cover}
.badge-live{
  position:absolute;top:16px;left:16px;display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:500;
  background:var(--accent-soft);color:var(--accent);letter-spacing:.04em;
}
.badge-live .dot{width:6px;height:6px;border-radius:50%;background:var(--accent)}
.cover-corner{
  position:absolute;right:14px;bottom:14px;width:36px;height:36px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(22,44,39,.62);border:1px solid rgba(255,255,255,.22);
}
.cover-corner svg{width:14px;height:14px;fill:#F6F2EA;stroke:none}
.live-title{margin:22px 0 8px;color:#FBF8F2;font-size:20px;line-height:1.5}
.live-meta{font-size:14px;color:rgba(241,237,227,.64);font-variant-numeric:tabular-nums;margin:0}
.live-meta .sep{margin:0 8px;color:rgba(241,237,227,.3)}
/* 倒计时 */
.cd-block{margin-bottom:26px}
.cd-status{
  display:flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.1em;color:rgba(241,237,227,.7);margin:0 0 14px;
}
.dot{width:7px;height:7px;border-radius:50%;background:rgba(241,237,227,.5);display:inline-block}
.dot-live{background:var(--live);animation:pulse 1.4s infinite}
.dot-muted{background:rgba(241,237,227,.4)}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.82)}}
.countdown{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.cd-cell{position:relative;text-align:center;padding:4px 0}
.cd-cell+.cd-cell::before{
  content:"";position:absolute;left:0;top:14%;height:72%;width:1px;background:rgba(255,255,255,.14);
}
.cd-num{
  display:block;font-family:var(--font-serif);font-size:44px;line-height:1.1;
  color:var(--accent-light);font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.cd-label{display:block;font-size:12px;color:rgba(241,237,227,.55);margin-top:6px;letter-spacing:.1em}
@media (max-width:400px){
  .cd-num{font-size:32px}
  .cd-label{font-size:11px}
}
/* 看点 */
.points{list-style:none;margin:0;padding:0;border-top:1px solid rgba(255,255,255,.12);border-bottom:1px solid rgba(255,255,255,.12)}
.point{display:flex;gap:16px;padding:16px 0}
.point+.point{border-top:1px solid rgba(255,255,255,.08)}
.pt-num{
  flex:0 0 auto;position:relative;padding-left:12px;padding-top:2px;
  font-family:var(--font-serif);font-size:16px;color:var(--accent-light);line-height:1.4;
}
.pt-num::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:1px;background:var(--accent)}
.pt-title{margin:0 0 2px;font-size:16px;font-weight:500;color:#FBF8F2;line-height:1.55}
.pt-desc{margin:0;font-size:14px;line-height:1.7;color:rgba(241,237,227,.62)}
/* 订阅卡 */
.sub-card{
  background:var(--surface);color:var(--ink);border-radius:var(--r-md);
  padding:24px;margin-top:24px;box-shadow:var(--sh-1);
}
.sub-card h4{font-size:17px;margin:0 0 6px}
.sub-card .sub-hint{font-size:13px;color:var(--ink-3);margin:0 0 16px;line-height:1.65}
.sub-form{display:flex;flex-direction:column;gap:10px}
.sub-form .btn{width:100%}
.sub-note{font-size:12px;line-height:1.65;color:var(--ink-3);margin:12px 0 0}
.sub-ok{
  border:1px solid var(--brand);border-radius:var(--r-sm);
  padding:16px;display:flex;align-items:flex-start;gap:10px;
  background:var(--brand-soft);color:var(--brand);font-size:14px;line-height:1.7;
}
.sub-ok svg{width:18px;height:18px;flex:0 0 auto;margin-top:3px;stroke:var(--brand);stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round}
.platform-row{display:flex;gap:10px;margin-top:16px;padding-top:16px;border-top:1px solid var(--line)}
.platform-row .pf{
  width:34px;height:34px;border-radius:var(--r-sm);border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink-3);
  transition:color var(--t),border-color var(--t);
}
.platform-row .pf:hover{color:var(--brand);border-color:var(--line-strong)}
.platform-row .pf svg{width:15px;height:15px;stroke:currentColor;stroke-width:1.25;fill:none;stroke-linecap:round;stroke-linejoin:round}
/* 回放条 */
.replay-strip{margin-top:36px;padding-top:28px;border-top:1px solid rgba(255,255,255,.12)}
.replay-strip .rs-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}
.replay-strip .rs-head h4{color:#FBF8F2;font-size:15px;letter-spacing:.08em;font-weight:500;margin:0}
.replay-row{
  display:flex;gap:16px;overflow-x:auto;padding-bottom:10px;
  scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.22) transparent;
}
.replay-row::-webkit-scrollbar{height:4px}
.replay-row::-webkit-scrollbar-track{background:transparent}
.replay-row::-webkit-scrollbar-thumb{background:rgba(255,255,255,.2);border-radius:2px}
.replay-item{
  flex:0 0 320px;display:flex;align-items:center;gap:14px;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);
  border-radius:var(--r-md);padding:12px;text-decoration:none;color:inherit;
  transition:background var(--t),border-color var(--t),transform var(--t);
}
.replay-item:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.22);transform:translateY(-2px);color:inherit}
.replay-thumb{flex:0 0 96px;aspect-ratio:16/9;border-radius:6px;overflow:hidden;background:rgba(255,255,255,.08)}
.replay-thumb img{width:100%;height:100%;object-fit:cover}
.replay-info{min-width:0}
.replay-info .rp-title{
  font-size:14px;font-weight:500;color:#FBF8F2;line-height:1.55;margin:0 0 4px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.replay-info .rp-meta{font-size:12px;color:rgba(241,237,227,.55);margin:0;font-variant-numeric:tabular-nums}
@media (max-width:991.98px){
  .live-panel{padding:32px}
}
@media (max-width:767.98px){
  .live-section{margin-top:-32px}
  .live-panel{padding:24px}
  .live-head h2{font-size:23px}
  .replay-item{flex:0 0 268px}
  .replay-thumb{flex:0 0 80px}
}
/* ---------- 最新信息 ---------- */
.pill-row{display:flex;flex-wrap:wrap;gap:8px}
.pill{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--surface-2);color:var(--ink-2);
  font-size:13px;text-decoration:none;transition:all var(--t);
}
.pill:hover{border-color:var(--line-strong);color:var(--ink)}
.pill.is-active{background:var(--brand);border-color:var(--brand);color:var(--paper)}
.pill.is-active:hover{color:var(--paper)}
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;text-decoration:none;color:inherit;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong);color:inherit}
.news-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);border-bottom:1px solid var(--line)}
.news-media img{width:100%;height:100%;object-fit:cover;transition:opacity var(--t)}
.news-card:hover .news-media img{opacity:.93}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.badge-soft{
  display:inline-flex;align-items:center;align-self:flex-start;
  padding:3px 10px;border-radius:var(--r-pill);
  background:var(--surface-2);color:var(--ink-2);font-size:12px;font-weight:500;letter-spacing:.04em;
}
.news-body h3{
  font-size:18px;line-height:1.55;margin:12px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--t);
}
.news-card:hover .news-body h3{color:var(--brand)}
.news-body .n-sum{
  font-size:15px;line-height:1.7;color:var(--ink-2);margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;}
.news-foot .n-arrow{color:var(--ink-3);transition:transform var(--t),color var(--t)}
.news-card:hover .news-foot .n-arrow{color:var(--accent);transform:translateX(3px)}
.empty-state{
  border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface-2);
  padding:48px 24px;text-align:center;
}
.empty-mark{font-family:var(--font-serif);font-size:32px;letter-spacing:-.04em;color:var(--line-strong);line-height:1;margin-bottom:14px}
.empty-state h3{font-size:16px;margin:0 0 8px;font-family:var(--font-sans);font-weight:500}
.empty-state p{font-size:14px;color:var(--ink-3);margin:0 0 18px}
/* ---------- 价值列表 ---------- */
.value-wrap{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,7fr);gap:64px;align-items:start}
.value-intro h2{margin-bottom:16px}
.value-intro p{font-size:16px;line-height:1.85;color:var(--ink-2)}
.value-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.value-row{
  display:flex;align-items:flex-start;gap:24px;
  padding:28px 16px;border-bottom:1px solid var(--line);
  transition:background var(--t);
}
.value-row:hover{background:var(--surface-2)}
.v-num{flex:0 0 44px;font-family:var(--font-serif);font-size:16px;color:var(--accent);padding-top:3px;font-variant-numeric:tabular-nums}
.v-main{flex:1 1 auto;min-width:0}
.v-main h3{font-size:17px;margin:0 0 6px}
.v-main p{font-size:15px;line-height:1.75;color:var(--ink-2);margin:0}
.v-arrow{flex:0 0 auto;color:var(--ink-3);font-size:16px;padding-top:2px;transition:transform var(--t),color var(--t)}
.value-row:hover .v-arrow{color:var(--accent);transform:translateX(3px)}
@media (max-width:991.98px){
  .value-wrap{grid-template-columns:1fr;gap:32px}
}
/* ---------- 数据条 ---------- */
.stats-band{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:56px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{position:relative;text-align:center;padding:6px 12px}
.stat+.stat::before{content:"";position:absolute;left:0;top:12%;height:76%;width:1px;background:var(--line-strong)}
.stat-num{
  font-family:var(--font-serif);font-size:32px;line-height:1.2;color:var(--brand);
  font-variant-numeric:tabular-nums;margin:0 0 6px;letter-spacing:.01em;
}
.stat-label{font-size:12px;color:var(--ink-3);letter-spacing:.08em;margin:0}
@media (max-width:767.98px){
  .stats-band{padding:40px 0}
  .stats-grid{grid-template-columns:repeat(2,1fr);row-gap:32px}
  .stat:nth-child(3)::before{display:none}
  .stat-num{font-size:26px}
}
/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:64px;align-items:start}
.faq-intro h2{margin-bottom:16px}
.faq-intro p{font-size:16px;line-height:1.85;color:var(--ink-2)}
.faq-intro .link-arrow{margin-top:8px}
.accordion-item{background:transparent;border:0;border-top:1px solid var(--line)}
.accordion-item:last-child{border-bottom:1px solid var(--line)}
.accordion-button{
  background:transparent;color:var(--ink);
  font-family:var(--font-sans);font-size:17px;font-weight:500;
  padding:20px 0;box-shadow:none!important;line-height:1.6;
}
.accordion-button:not(.collapsed){background:transparent;color:var(--brand)}
.accordion-button::after{
  content:"＋";background-image:none!important;transform:none!important;
  width:24px;height:24px;font-size:18px;font-weight:400;color:var(--ink-3);
  display:flex;align-items:center;justify-content:center;
  transition:color var(--t);
}
.accordion-button:not(.collapsed)::after{content:"－";color:var(--accent)}
.accordion-body{padding:0 32px 20px 0;font-size:15px;line-height:1.8;color:var(--ink-2)}
@media (max-width:991.98px){
  .faq-wrap{grid-template-columns:1fr;gap:28px}
}
/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand);color:#F6F2EA;border-radius:var(--r-lg);
  padding:48px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:40px;align-items:center;
}
.cta-band h2{color:#FBF8F2;font-size:26px;margin-bottom:10px}
.cta-band p{font-size:15px;line-height:1.75;color:rgba(246,242,234,.76);margin:0}
.cta-form{display:flex;gap:10px}
.cta-form .form-control{flex:1 1 auto;background:rgba(255,255,255,.96);border-color:transparent}
.cta-form .btn{flex:0 0 auto}
.cta-ok{
  border:1px solid rgba(246,242,234,.5);border-radius:var(--r-sm);
  padding:16px 18px;font-size:14px;line-height:1.7;color:#FBF8F2;
  display:flex;align-items:center;gap:10px;
}
.cta-ok svg{width:18px;height:18px;stroke:#FBF8F2;stroke-width:2;fill:none;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto}
@media (max-width:991.98px){
  .cta-band{grid-template-columns:1fr;gap:24px;padding:36px}
  .cta-band h2{font-size:23px}
}
@media (max-width:575.98px){
  .cta-band{padding:28px 20px}
  .cta-form{flex-direction:column}
  .cta-form .btn{width:100%}
}
/* ---------- 表单 ---------- */
.form-control{
  height:48px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:var(--surface);color:var(--ink);font-size:15px;padding:0 16px;
  font-family:var(--font-sans);
  transition:border-color var(--t),box-shadow var(--t);
}
.form-control::placeholder{color:var(--ink-3)}
.form-control:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,59,52,.12);
  background:var(--surface);color:var(--ink);
}
.form-control.is-invalid{border-color:var(--live);box-shadow:0 0 0 3px rgba(207,74,46,.1)}
/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:rgba(246,242,234,.7);margin-top:96px;padding:72px 0 0}
.footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:48px;
  padding-bottom:56px;border-bottom:1px solid rgba(255,255,255,.12);
}
.f-brand .brand-mark{color:#FBF8F2;font-size:22px}
.f-brand .brand-cn{color:rgba(246,242,234,.8)}
.f-brand .brand-divider{background:rgba(246,242,234,.32)}
.f-brand p{margin:18px 0 0;font-size:14px;line-height:1.8;color:rgba(246,242,234,.62);max-width:320px}
.f-title{font-size:12px;letter-spacing:.16em;color:rgba(246,242,234,.45);margin:0 0 18px;font-family:var(--font-sans);font-weight:500}
.f-list{list-style:none;margin:0;padding:0}
.f-list li{margin-bottom:12px}
.f-list a{font-size:14px;color:rgba(246,242,234,.72);text-decoration:none;transition:color var(--t)}
.f-list a:hover{color:#FFFFFF}
.f-info li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:rgba(246,242,234,.62);margin-bottom:12px}
.f-info .k{flex:0 0 62px;color:rgba(246,242,234,.42)}
.f-info .v{flex:1 1 auto;word-break:break-all}
.copyright{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0 26px;font-size:12px;color:rgba(246,242,234,.42);letter-spacing:.03em;
}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .site-footer{margin-top:72px;padding-top:56px}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px}
}
/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;z-index:1040;
  display:flex;align-items:center;justify-content:center;
  background:var(--surface);border:1px solid var(--line-strong);border-radius:var(--r-sm);
  color:var(--ink-2);cursor:pointer;opacity:0;pointer-events:none;
  transition:opacity var(--t),background var(--t),color var(--t),border-color var(--t),transform var(--t);
}
.to-top.is-visible{opacity:1;pointer-events:auto}
.to-top:hover{background:var(--brand);border-color:var(--brand);color:var(--paper)}
.to-top svg{width:16px;height:16px;stroke:currentColor;stroke-width:1.6;fill:none;stroke-linecap:round;stroke-linejoin:round}
@media (max-width:575.98px){.to-top{right:16px;bottom:16px;width:44px;height:44px}}
/* ---------- 图片占位 ---------- */
.is-fallback{
  position:relative;background:
    repeating-linear-gradient(45deg,transparent 0 9px,rgba(210,202,187,.34) 9px 10px),
    var(--surface-2);
}
.is-fallback::after{
  content:"MK";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);font-size:26px;letter-spacing:-.04em;color:var(--line-strong);
}
/* ---------- 移动端抽屉 ---------- */
.mk-offcanvas{background:var(--paper);width:320px;border-right:1px solid var(--line)}
.mk-offcanvas .offcanvas-header{padding:18px 24px;border-bottom:1px solid var(--line)}
.mk-offcanvas .offcanvas-body{padding:0}
.m-off-link{
  display:block;padding:0 24px;line-height:56px;font-size:18px;
  color:var(--ink);text-decoration:none;border-bottom:1px solid var(--line);
  border-left:3px solid transparent;transition:all var(--t);
}
.m-off-link:hover{background:var(--surface-2);color:var(--ink)}
.m-off-link.is-active{border-left-color:var(--accent);color:var(--brand);background:var(--surface-2);font-weight:500}
.m-off-foot{padding:24px;border-top:1px solid var(--line)}
.m-off-foot .btn{width:100%}
.m-off-foot p{font-size:12px;color:var(--ink-3);margin:12px 0 0;line-height:1.7}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}

/* roulang page: article */
:root{
  --ink:#1B1A16;--ink-2:#5F5A50;--ink-3:#8C867A;
  --paper:#F6F2EA;--surface:#FFFFFF;--surface-2:#EFEAE0;
  --line:#E4DED2;--line-strong:#D2CABB;
  --brand:#1F3B34;--brand-deep:#162C27;--brand-soft:#E7EDEA;
  --accent:#C0562A;--accent-soft:#F3E3D8;
  --live:#CF4A2E;--replay:#3F5F57;
  --r-sm:8px;--r-md:12px;--r-lg:16px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(27,26,22,.05),0 6px 20px -12px rgba(27,26,22,.14);
  --sh-2:0 2px 4px rgba(27,26,22,.06),0 14px 32px -14px rgba(27,26,22,.22);
  --ease:180ms cubic-bezier(.2,.7,.3,1);
  --serif:'Noto Serif SC','Songti SC','Source Han Serif SC',serif;
  --sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:17px;line-height:1.85;font-weight:400;
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease)}
a:hover{color:var(--brand)}
ul,ol{margin:0;padding:0}
p{margin:0}
button{background:none;border:0;padding:0;cursor:pointer;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:2px}
.container{width:100%;max-width:1200px;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px}
.section{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.section-title{font-family:var(--serif);font-size:30px;font-weight:600;line-height:1.35;letter-spacing:.01em;margin:0 0 8px}
.section-sub{font-size:14px;color:var(--ink-3);line-height:1.7;margin:0}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:var(--brand);letter-spacing:.02em;border-bottom:1px solid transparent;padding-bottom:2px}
.text-link:hover{border-bottom-color:var(--brand)}
.text-link span{transition:transform var(--ease)}
.text-link:hover span{transform:translateX(3px)}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:1030;background:rgba(246,242,234,.94);
  -webkit-backdrop-filter:saturate(140%) blur(10px);backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line);transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px -18px rgba(27,26,22,.6)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--ink);line-height:1}
.brand-mark{font-family:var(--serif);font-size:24px;font-weight:700;letter-spacing:-.02em}
.brand-divider{display:inline-block;width:1px;height:20px;background:var(--line-strong)}
.brand-cn{font-size:15px;font-weight:500;letter-spacing:.04em;color:var(--ink-2);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:400;
  color:var(--ink-2);line-height:1.4;transition:color var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:left center;transition:transform var(--ease);
}
.nav-link:hover{color:var(--ink)}
.nav-link.is-active{color:var(--ink);font-weight:500}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid transparent;border-radius:var(--r-sm);color:var(--ink-2);background:transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.icon-btn:hover{background:var(--surface-2);color:var(--ink)}
.icon-btn svg{width:20px;height:20px}
.hamburger{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);border-radius:var(--r-sm);color:var(--ink);background:transparent;
  transition:border-color var(--ease),background var(--ease);
}
.hamburger:hover{border-color:var(--ink);background:var(--surface-2)}
.hamburger svg{width:20px;height:20px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);border:1px solid transparent;
  font-family:var(--sans);font-size:15px;font-weight:500;letter-spacing:.02em;line-height:1;
  text-align:center;white-space:nowrap;box-shadow:none;
  transition:background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-mk{background:var(--brand);color:var(--paper)}
.btn-mk:hover{background:var(--brand-deep);color:#fff;box-shadow:var(--sh-1)}
.btn-mk:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#A9491F;color:#fff}
.btn-accent:active{transform:translateY(1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.75;cursor:default}

/* 移动菜单 */
.offcanvas{background:var(--paper)}
.offcanvas-header{padding:20px 24px;border-bottom:1px solid var(--line)}
.offcanvas-body{padding:8px 24px 32px}
.m-nav{display:flex;flex-direction:column}
.m-nav a{
  display:flex;align-items:center;min-height:56px;padding:0 12px;font-size:18px;color:var(--ink);
  border-bottom:1px solid var(--line);border-left:3px solid transparent;transition:background var(--ease),color var(--ease);
}
.m-nav a:hover{background:var(--surface-2)}
.m-nav a.is-active{border-left-color:var(--accent);color:var(--brand);background:var(--surface-2)}
.m-cta{margin-top:24px}
.m-note{margin-top:14px;font-size:13px;color:var(--ink-3);line-height:1.7}
.btn-close{opacity:.55}
.btn-close:hover{opacity:.9}

/* 面包屑 */
.page-head{padding:32px 0 0}
.breadcrumb-line{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);line-height:1.6}
.breadcrumb-line .sep{color:var(--line-strong)}
.breadcrumb-line a{color:var(--ink-3)}
.breadcrumb-line a:hover{color:var(--brand)}
.breadcrumb-line .current{color:var(--ink);max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 文章布局 */
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;padding:24px 0 72px}
.article-head{padding:0 0 28px;border-bottom:1px solid var(--line)}
.badge-cat{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:500;letter-spacing:.06em;
}
.article-head h1{
  font-family:var(--serif);font-size:38px;font-weight:700;line-height:1.45;letter-spacing:.01em;
  margin:16px 0 18px;max-width:760px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong);display:inline-block}

/* 正文排版 */
.article-body{max-width:720px;padding-top:32px;font-size:17px;line-height:1.9;color:var(--ink)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  font-family:var(--serif);font-size:26px;font-weight:600;line-height:1.5;letter-spacing:.01em;
  margin:40px 0 16px;
}
.article-body h3{font-family:var(--serif);font-size:20px;font-weight:600;line-height:1.55;margin:28px 0 12px}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em}
.article-body li{margin:0 0 .5em;line-height:1.9}
.article-body ul li::marker{color:var(--brand)}
.article-body ol li::marker{color:var(--brand);font-variant-numeric:tabular-nums}
.article-body blockquote{
  margin:28px 0;padding:20px 24px;border-left:3px solid var(--brand);background:var(--surface-2);
  color:var(--ink-2);font-size:16px;line-height:1.8;border-radius:0 var(--r-sm) var(--r-sm) 0;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);border:1px solid var(--line);margin:24px auto 8px}
.article-body figure{margin:24px 0}
.article-body figure img{margin-bottom:12px}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;line-height:1.7}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;line-height:1.7}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
.article-body thead th{background:var(--surface-2);font-weight:500;color:var(--ink)}
.article-body tbody tr:hover td{background:#FBF8F2}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--accent)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:40px 0}
.article-body strong{font-weight:600}
.article-body code{background:var(--surface-2);padding:2px 6px;border-radius:4px;font-size:15px}

/* 空态 */
.empty-state{
  border:1px solid var(--line);background:var(--surface-2);border-radius:var(--r-md);
  padding:48px 24px;text-align:center;
}
.empty-state .wm{font-family:var(--serif);font-size:26px;letter-spacing:.24em;color:var(--line-strong);margin-bottom:16px}
.empty-state h2{font-family:var(--serif);font-size:20px;font-weight:600;margin:0 0 12px}
.empty-state p{font-size:14px;color:var(--ink-3);line-height:1.8;margin:0 auto 24px;max-width:440px}
.empty-state .btn{margin-inline:auto}

/* 文末 */
.article-foot{margin-top:40px;padding-top:28px;border-top:1px solid var(--line);max-width:720px}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.tag-label{font-size:13px;color:var(--ink-3);margin-right:4px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--surface-2);color:var(--ink-2);font-size:12px;letter-spacing:.04em;
  transition:background var(--ease),color var(--ease);
}
.tag:hover{background:var(--brand-soft);color:var(--brand)}
.share-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:24px;padding-top:20px;border-top:1px solid var(--line)}
.chip-btn{
  display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 14px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);font-size:13px;color:var(--ink-2);background:transparent;
  transition:border-color var(--ease),color var(--ease),background var(--ease);
}
.chip-btn:hover{border-color:var(--ink);color:var(--ink);background:var(--surface-2)}
.share-row .back{margin-left:auto}

/* 侧栏 */
.article-aside{position:relative}
.aside-sticky{position:sticky;top:104px;display:flex;flex-direction:column;gap:24px}
.aside-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:24px;box-shadow:var(--sh-1)}
.aside-title{font-family:var(--serif);font-size:17px;font-weight:600;margin:0 0 6px;letter-spacing:.01em}
.aside-sub{font-size:13px;color:var(--ink-3);line-height:1.7;margin:0 0 16px}
.aside-links{list-style:none}
.aside-links li+li{border-top:1px solid var(--line)}
.aside-links a{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:12px 0;font-size:14px;color:var(--ink-2)}
.aside-links a span{color:var(--ink-3);transition:transform var(--ease),color var(--ease)}
.aside-links a:hover{color:var(--brand)}
.aside-links a:hover span{color:var(--accent);transform:translateX(3px)}
.aside-dark{background:var(--brand-deep);border-color:rgba(255,255,255,.14);color:#fff;box-shadow:none}
.aside-dark .aside-title{color:#fff}
.aside-dark .aside-sub{color:rgba(255,255,255,.62)}
.aside-dark .field{margin-bottom:12px}

/* 表单 */
.field{
  width:100%;height:48px;padding:0 16px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;color:var(--ink);font-size:15px;line-height:1.4;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field::placeholder{color:var(--ink-3)}
.field:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,59,52,.12)}
.field.is-error{border-color:var(--live);box-shadow:0 0 0 3px rgba(207,74,46,.12)}
.form-note{font-size:13px;color:rgba(255,255,255,.6);line-height:1.7;margin:10px 0 0}
.aside-dark .form-note{color:rgba(255,255,255,.55)}
.form-ok{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--brand);line-height:1.7;
  border:1px solid var(--brand-soft);background:#fff;border-radius:var(--r-sm);padding:10px 14px;margin-top:12px;
}
.aside-dark .form-ok{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.24);color:#fff}

/* 相关推荐 */
.rel-section{padding-top:8px}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card-mk{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card-mk:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.thumb{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:var(--surface-2);border-bottom:1px solid var(--line)}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.card-mk:hover .thumb img{transform:scale(1.02)}
.thumb-badge{
  position:absolute;left:12px;top:12px;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:rgba(246,242,234,.94);color:var(--brand);font-size:12px;font-weight:500;
  display:inline-flex;align-items:center;letter-spacing:.04em;
}
.rel-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-family:var(--serif);font-size:18px;font-weight:600;line-height:1.55;margin:0}
.rel-body h3 a:hover{color:var(--brand)}
.rel-body p{
  font-size:15px;line-height:1.7;color:var(--ink-2);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-meta{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.rel-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong)}

/* CTA 带 */
.cta-band{
  background:var(--brand);color:#fff;border-radius:var(--r-lg);padding:48px;
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
}
.cta-band h2{font-family:var(--serif);font-size:28px;font-weight:600;line-height:1.4;margin:0 0 12px;color:#fff}
.cta-band p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.74);margin:0}
.cta-form{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:start}
.cta-form .form-note{grid-column:1/-1}
.cta-form .form-ok{grid-column:1/-1;background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.26);color:#fff}

/* 页脚 */
.site-footer{background:var(--brand-deep);color:rgba(255,255,255,.72);padding:72px 0 32px;border-top:1px solid rgba(255,255,255,.12)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.site-footer .brand-mark{color:#fff}
.site-footer .brand-divider{background:rgba(255,255,255,.28)}
.site-footer .brand-cn{color:rgba(255,255,255,.86)}
.f-brand p{margin:16px 0 0;font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:320px}
.f-title{font-size:12px;letter-spacing:.16em;color:rgba(255,255,255,.48);margin:0 0 16px;font-weight:500}
.f-list{list-style:none}
.f-list li{margin-bottom:10px}
.f-list a{font-size:14px;color:rgba(255,255,255,.72)}
.f-list a:hover{color:#fff}
.f-info li{display:flex;justify-content:space-between;gap:16px;font-size:14px;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.08);line-height:1.6}
.f-info li:last-child{border-bottom:0}
.f-info .k{color:rgba(255,255,255,.48);flex:none}
.f-info .v{color:rgba(255,255,255,.82);text-align:right}
.copyright{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:48px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.12);font-size:12px;color:rgba(255,255,255,.46);line-height:1.8;
}

/* 返回顶部 */
.to-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;z-index:1020;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);border-radius:var(--r-sm);background:var(--paper);color:var(--ink);
  box-shadow:var(--sh-1);opacity:0;pointer-events:none;
  transition:opacity var(--ease),background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease);
}
.to-top.is-on{opacity:1;pointer-events:auto}
.to-top:hover{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateY(-1px)}
.to-top svg{width:18px;height:18px}

@media (max-width:1199px){
  .article-grid{grid-template-columns:minmax(0,1fr) 280px;gap:40px}
  .nav-links{gap:20px}
  .nav-link{font-size:14px}
}
@media (max-width:991px){
  .header-inner{height:64px}
  .article-grid{grid-template-columns:minmax(0,1fr);gap:40px;padding:20px 0 56px}
  .article-aside{order:2}
  .aside-sticky{position:static;flex-direction:row;flex-wrap:wrap}
  .aside-card{flex:1 1 280px}
  .article-head h1{font-size:30px;line-height:1.5}
  .article-body{font-size:16px;max-width:none}
  .article-foot{max-width:none}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:1fr;padding:36px;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:56px 0}
  .section-title{font-size:24px}
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px}
  .brand-cn{font-size:13px;letter-spacing:.02em}
  .brand-mark{font-size:20px}
  .page-head{padding-top:24px}
  .article-meta{font-size:12px}
  .article-head h1{font-size:26px}
  .article-body h2{font-size:22px;margin-top:32px}
  .article-body h3{font-size:18px}
  .rel-grid{grid-template-columns:1fr}
  .cta-band{padding:28px 20px;border-radius:var(--r-md)}
  .cta-band h2{font-size:22px}
  .cta-form{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .share-row .back{margin-left:0}
  .to-top{right:16px;bottom:16px}
  .aside-sticky{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --ink:#1B1A16;
  --ink-2:#5F5A50;
  --ink-3:#8C867A;
  --paper:#F6F2EA;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --line:#E4DED2;
  --line-strong:#D2CABB;
  --brand:#1F3B34;
  --brand-deep:#162C27;
  --brand-soft:#E7EDEA;
  --accent:#C0562A;
  --accent-soft:#F3E3D8;
  --live:#CF4A2E;
  --replay:#3F5F57;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(27,26,22,.05), 0 6px 20px -12px rgba(27,26,22,.14);
  --sh-2:0 2px 4px rgba(27,26,22,.06), 0 14px 32px -14px rgba(27,26,22,.22);
  --ease:180ms cubic-bezier(.2,.7,.3,1);
  --serif:'Noto Serif SC','Songti SC',serif;
  --sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--brand-deep)}
button{font-family:inherit}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;letter-spacing:.01em;color:var(--ink);margin:0}
p{margin:0 0 1.1em}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:2px}

/* 容器 */
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (max-width:1399px){ .container{max-width:1140px} }
@media (max-width:991px){ .container{max-width:960px} }
@media (max-width:767px){ .container{max-width:100%;padding-left:16px;padding-right:16px} }

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(246,242,234,.94);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color var(--ease), box-shadow var(--ease), background var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 1px 0 rgba(27,26,22,.02),0 8px 24px -20px rgba(27,26,22,.4)}
.header-inner{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.brand-mark{font-family:var(--serif);font-weight:700;font-size:22px;letter-spacing:-.04em;color:var(--ink);line-height:1}
.brand-divider{width:1px;height:16px;background:var(--line-strong);display:inline-block}
.brand-cn{font-family:var(--serif);font-size:15px;font-weight:600;letter-spacing:.02em;color:var(--ink);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--ink-2);
  padding:6px 0;
  background:none;
  border:0;
  transition:color var(--ease);
  white-space:nowrap;
}
.nav-link:hover{color:var(--ink)}
.nav-link.is-active{color:var(--ink)}
.nav-link.is-active::after{
  content:"";
  position:absolute;left:0;right:0;bottom:-6px;height:2px;background:var(--accent);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid transparent;border-radius:var(--r-sm);color:var(--ink-2);background:transparent;
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.icon-btn:hover{color:var(--ink);border-color:var(--line-strong);background:var(--surface)}
.icon-btn svg{width:18px;height:18px;stroke:currentColor;stroke-width:1.25;fill:none;stroke-linecap:round;stroke-linejoin:round}
.btn-mk{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  background:var(--brand);color:var(--paper);border:1px solid var(--brand);
  font-size:15px;font-weight:500;letter-spacing:.02em;line-height:1;
  transition:background var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease),color var(--ease);
}
.btn-mk:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:var(--paper);box-shadow:var(--sh-1)}
.btn-mk:active{transform:translateY(1px)}
.btn-mk-sm{height:40px;padding:0 18px;font-size:14px}
.btn-accent{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-accent:hover{background:#A94A22;border-color:#A94A22;color:#fff}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  border:1px solid var(--line-strong);background:transparent;color:var(--ink);
  font-size:15px;font-weight:500;letter-spacing:.02em;
  transition:border-color var(--ease),color var(--ease),background var(--ease),transform var(--ease);
}
.btn-ghost:hover{border-color:var(--ink);color:var(--ink);background:var(--surface)}
.btn-ghost:active{transform:translateY(1px)}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:500;color:var(--brand);background:none;border:0;padding:4px 0;
  border-bottom:1px solid transparent;transition:border-color var(--ease),color var(--ease);
}
.btn-text .arw{transition:transform var(--ease);font-size:14px}
.btn-text:hover{border-bottom-color:var(--brand);color:var(--brand-deep)}
.btn-text:hover .arw{transform:translateX(3px)}

/* 移动端汉堡 */
.mobile-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);border-radius:var(--r-sm);background:transparent;color:var(--ink);
}
.mobile-toggle svg{width:20px;height:20px;stroke:currentColor;stroke-width:1.25;fill:none;stroke-linecap:round}
.offcanvas{border:0;background:var(--paper)}
.offcanvas-header{border-bottom:1px solid var(--line);padding:20px 24px}
.offcanvas-body{padding:8px 24px 24px;display:flex;flex-direction:column}
.m-nav-link{
  display:flex;align-items:center;
  font-size:18px;color:var(--ink-2);line-height:56px;
  border-bottom:1px solid var(--line);
  position:relative;padding-left:14px;
  transition:color var(--ease);
}
.m-nav-link::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;background:transparent;border-radius:2px}
.m-nav-link.is-active{color:var(--brand);font-weight:500}
.m-nav-link.is-active::before{background:var(--accent)}
.m-nav-foot{margin-top:auto;padding-top:24px}
.m-nav-foot .btn-mk{width:100%}
.m-nav-note{font-size:13px;color:var(--ink-3);margin-top:12px;line-height:1.7}

@media (max-width:991px){
  .header-inner{height:64px}
  .nav-links{display:none!important}
  .mobile-toggle{display:inline-flex}
  .header-actions .btn-mk{display:none}
  .brand-cn{font-size:14px}
}

/* ===== 面包屑 ===== */
.breadcrumb-bar{padding:28px 0 0}
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-3)}
.crumbs a{color:var(--ink-3)}
.crumbs a:hover{color:var(--ink)}
.crumbs .sep{color:var(--line-strong)}
.crumbs .current{color:var(--ink)}

/* ===== 页面头部 ===== */
.page-hero{padding:20px 0 48px;border-bottom:1px solid var(--line)}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.16em;color:var(--ink-3);
  border:1px solid var(--line);border-radius:var(--r-pill);
  padding:4px 12px;background:var(--surface);margin-bottom:20px;
}
.hero-eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--live);animation:breath 1.4s ease-in-out infinite}
@keyframes breath{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.82)}}
.page-hero h1{font-size:40px;line-height:1.35;max-width:760px;margin-bottom:16px}
.page-hero .lede{font-size:17px;color:var(--ink-2);max-width:640px;margin-bottom:28px}
.hero-stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.hero-stats .st{padding:20px 24px 20px 0;border-left:1px solid var(--line);padding-left:24px}
.hero-stats .st:first-child{border-left:0;padding-left:0}
.st-num{font-family:var(--serif);font-size:28px;font-variant-numeric:tabular-nums;color:var(--brand-deep);line-height:1.2}
.st-num small{font-size:14px;font-family:var(--sans);color:var(--ink-3);margin-left:4px}
.st-label{font-size:13px;color:var(--ink-3);margin-top:6px}

/* 筛选胶囊 */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;padding:24px 0 0}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;color:var(--ink-2);
  background:var(--surface-2);border:1px solid transparent;
  border-radius:var(--r-pill);padding:8px 16px;min-height:36px;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.pill:hover{background:var(--surface);border-color:var(--line-strong);color:var(--ink)}
.pill.is-on{background:var(--brand);border-color:var(--brand);color:var(--paper)}

/* ===== 时间轴 ===== */
.section{padding:64px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:32px}
.section-head h2{font-size:30px;line-height:1.35}
.section-head .sub{font-size:14px;color:var(--ink-3);margin-top:8px}
.tl-group{margin-bottom:56px}
.tl-group:last-child{margin-bottom:0}
.group-label{
  display:flex;align-items:center;gap:14px;
  font-size:12px;letter-spacing:.16em;color:var(--ink-3);
  padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:28px;
}
.group-label .count{letter-spacing:0;color:var(--ink-2);font-variant-numeric:tabular-nums}
.tl-item{display:grid;grid-template-columns:110px minmax(0,1fr);gap:28px;margin-bottom:28px}
.tl-item:last-child{margin-bottom:0}
.tl-date{padding-top:6px}
.tl-md{font-family:var(--serif);font-size:26px;font-variant-numeric:tabular-nums;color:var(--ink);line-height:1.2;letter-spacing:.01em}
.tl-time{font-size:14px;color:var(--ink-3);font-variant-numeric:tabular-nums;margin-top:4px}
.tl-week{font-size:12px;color:var(--ink-3);margin-top:2px}

.live-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
  display:grid;grid-template-columns:minmax(0,320px) minmax(0,1fr);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.live-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.live-card.is-past{opacity:.96}
.thumb{position:relative;overflow:hidden;border-right:1px solid var(--line);background:var(--surface-2)}
.thumb img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/9}
.thumb .badge-abs{position:absolute;top:12px;left:12px}
.thumb .dur{
  position:absolute;right:12px;bottom:12px;
  background:rgba(27,26,22,.72);color:#F6F2EA;font-size:12px;
  padding:3px 8px;border-radius:4px;font-variant-numeric:tabular-nums;
}
.live-body{padding:24px}
.live-body h3{font-size:20px;line-height:1.45;margin-bottom:8px}
.live-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--ink-3);margin-bottom:18px}
.live-meta .vsep{color:var(--line-strong)}
.hl-list{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px 0;margin-bottom:20px}
.hl-item{display:grid;grid-template-columns:34px minmax(0,1fr);gap:8px;padding:7px 0}
.hl-num{font-family:var(--serif);font-size:14px;color:var(--accent);border-left:1px solid var(--accent);padding-left:10px;line-height:1.6}
.hl-text{font-size:14px;color:var(--ink-2);line-height:1.7}
.hl-text strong{color:var(--ink);font-weight:500}
.live-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.actions{display:flex;gap:12px;flex-wrap:wrap}

/* 倒计时 */
.countdown{
  display:inline-flex;align-items:stretch;
  border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--surface-2);overflow:hidden;
}
.cd-cell{padding:8px 14px;text-align:center;border-left:1px solid var(--line)}
.cd-cell:first-child{border-left:0}
.cd-num{
  display:block;font-family:var(--sans);font-weight:700;font-size:22px;
  font-variant-numeric:tabular-nums;color:var(--brand-deep);line-height:1.2;letter-spacing:.02em;
}
.cd-label{display:block;font-size:11px;color:var(--ink-3);line-height:1.4;margin-top:2px}
.cd-prefix{font-size:12px;color:var(--ink-3);align-self:center;padding:0 12px 0 14px;white-space:nowrap}

/* 徽章 */
.badge-mk{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:500;line-height:1;letter-spacing:.02em;
  padding:5px 10px;border-radius:var(--r-pill);
}
.badge-soon{background:var(--accent-soft);color:var(--accent)}
.badge-live{background:var(--live);color:#fff}
.badge-live .dot{width:6px;height:6px;border-radius:50%;background:#fff;animation:breath 1.4s ease-in-out infinite}
.badge-replay{background:var(--brand-soft);color:var(--replay)}
.badge-cat{background:var(--surface-2);color:var(--ink-2)}

/* 步骤 */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border-top:1px solid var(--line)}
.step{padding:28px 28px 28px 0;border-right:1px solid var(--line);position:relative}
.step:last-child{border-right:0}
.step:not(:first-child){padding-left:28px}
.step-num{
  font-family:var(--serif);font-size:13px;letter-spacing:.18em;color:var(--accent);
  display:block;margin-bottom:14px;font-variant-numeric:tabular-nums;
}
.step h3{font-size:19px;margin-bottom:10px}
.step p{font-size:15px;color:var(--ink-2);line-height:1.8;margin:0}

/* 回放横条 */
.replay-strip{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
}
.replay-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  display:flex;flex-direction:column;
}
.replay-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.replay-card .thumb{border-right:0;border-bottom:1px solid var(--line)}
.replay-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.replay-body h3{font-size:17px;line-height:1.5}
.replay-body .rmeta{font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;margin-top:auto}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:56px;align-items:start}
.faq-wrap h2{font-size:30px;margin-bottom:12px}
.faq-wrap .sub{font-size:15px;color:var(--ink-2);max-width:320px;line-height:1.8}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.accordion-item:first-of-type{border-top:1px solid var(--line)}
.accordion-button{
  background:transparent;border:0;box-shadow:none;
  font-size:17px;font-weight:500;color:var(--ink);
  padding:20px 0;line-height:1.6;
}
.accordion-button:not(.collapsed){background:transparent;color:var(--brand);box-shadow:none}
.accordion-button:focus{box-shadow:none;border-color:transparent}
.accordion-button:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.accordion-button::after{
  background-image:none;
  content:"";
  width:14px;height:14px;
  background:
    linear-gradient(currentColor,currentColor) center/14px 1px no-repeat,
    linear-gradient(currentColor,currentColor) center/1px 14px no-repeat;
  transition:transform var(--ease);
}
.accordion-button:not(.collapsed)::after{
  background:linear-gradient(currentColor,currentColor) center/14px 1px no-repeat;
  transform:rotate(180deg);
}
.accordion-body{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* CTA 带 */
.cta-band{
  margin-top:64px;
  background:var(--brand);color:var(--paper);
  border-radius:var(--r-lg);
  padding:48px;
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:center;
}
.cta-band h2{color:var(--paper);font-size:26px;margin-bottom:10px}
.cta-band p{color:rgba(246,242,234,.76);font-size:15px;margin:0;line-height:1.8}
.sub-form{display:flex;gap:12px;flex-wrap:wrap}
.form-control{
  height:48px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:var(--surface);color:var(--ink);font-size:15px;padding:0 16px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.form-control::placeholder{color:var(--ink-3)}
.form-control:focus{
  border-color:var(--brand);background:var(--surface);
  box-shadow:0 0 0 3px rgba(31,59,52,.12);outline:none;
}
.sub-form .form-control{flex:1;min-width:180px}
.form-note{font-size:13px;color:rgba(246,242,234,.6);margin-top:12px;line-height:1.7}
.form-success{
  display:flex;align-items:flex-start;gap:10px;
  border:1px solid rgba(246,242,234,.35);border-radius:var(--r-sm);
  padding:16px 18px;font-size:14px;color:var(--paper);line-height:1.7;
}
.form-success svg{width:18px;height:18px;flex:none;margin-top:3px;stroke:currentColor;stroke-width:1.6;fill:none;stroke-linecap:round;stroke-linejoin:round}

/* 返回顶部 */
.to-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;z-index:1020;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);border-radius:var(--r-sm);
  background:var(--paper);color:var(--ink-2);
  transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease);
}
.to-top:hover{color:var(--paper);background:var(--brand);border-color:var(--brand);transform:translateY(-2px)}
.to-top svg{width:18px;height:18px;stroke:currentColor;stroke-width:1.4;fill:none;stroke-linecap:round;stroke-linejoin:round}

/* ===== 页脚 ===== */
.site-footer{
  margin-top:96px;background:var(--brand-deep);color:rgba(246,242,234,.78);
  border-top:1px solid rgba(255,255,255,.12);padding-top:64px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px}
.site-footer .brand-mark{color:var(--paper)}
.site-footer .brand-cn{color:var(--paper)}
.site-footer .brand-divider{background:rgba(246,242,234,.3)}
.f-brand p{font-size:14px;line-height:1.9;color:rgba(246,242,234,.66);margin-top:18px;max-width:320px}
.f-title{font-size:13px;letter-spacing:.12em;color:rgba(246,242,234,.5);margin:0 0 16px}
.f-list{list-style:none;padding:0;margin:0}
.f-list li{margin-bottom:10px}
.f-list a{font-size:14px;color:rgba(246,242,234,.82)}
.f-list a:hover{color:var(--paper)}
.f-info li{
  display:flex;justify-content:space-between;gap:16px;
  font-size:14px;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.1);
}
.f-info li:first-child{padding-top:0}
.f-info li:last-child{border-bottom:0}
.f-info .k{color:rgba(246,242,234,.5);white-space:nowrap}
.f-info .v{color:rgba(246,242,234,.88);text-align:right;font-variant-numeric:tabular-nums}
.copyright{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:12px;color:rgba(246,242,234,.5);
}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .page-hero h1{font-size:34px}
  .live-card{grid-template-columns:minmax(0,280px) minmax(0,1fr)}
}
@media (max-width:991px){
  body{font-size:16px}
  .section{padding-top:56px}
  .page-hero{padding-bottom:40px}
  .page-hero h1{font-size:30px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .hero-stats .st{padding:16px 16px 16px 0;border-left:0}
  .hero-stats .st:nth-child(even){padding-left:20px;border-left:1px solid var(--line)}
  .hero-stats .st:nth-child(n+3){border-top:1px solid var(--line)}
  .live-card{grid-template-columns:minmax(0,1fr)}
  .thumb{border-right:0;border-bottom:1px solid var(--line)}
  .tl-item{grid-template-columns:84px minmax(0,1fr);gap:18px}
  .tl-md{font-size:22px}
  .steps{grid-template-columns:minmax(0,1fr)}
  .step{border-right:0;border-bottom:1px solid var(--line);padding:24px 0!important}
  .step:last-child{border-bottom:0}
  .replay-strip{grid-template-columns:minmax(0,1fr);gap:16px}
  .faq-wrap{grid-template-columns:minmax(0,1fr);gap:24px}
  .faq-wrap .sub{max-width:none}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:32px;gap:24px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .to-top{right:16px;bottom:16px;width:44px;height:44px}
}
@media (max-width:767px){
  .section{padding-top:56px}
  .page-hero h1{font-size:28px;line-height:1.4}
  .page-hero .lede{font-size:16px}
  .tl-item{grid-template-columns:minmax(0,1fr);gap:12px}
  .tl-date{display:flex;align-items:baseline;gap:10px;padding-top:0}
  .tl-time{margin-top:0}
  .tl-week{margin-top:0}
  .live-body{padding:20px}
  .live-body h3{font-size:18px}
  .actions .btn-mk,.actions .btn-ghost{flex:1;min-width:140px;height:44px;padding:0 16px}
  .cta-band{padding:24px;border-radius:var(--r-md)}
  .cta-band h2{font-size:22px}
  .sub-form .form-control{min-width:100%}
  .sub-form .btn-mk{width:100%}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;padding-bottom:32px}
  .f-info li{font-size:13px}
  .f-info .v{text-align:left}
  .f-info li{flex-direction:column;gap:2px}
  .copyright{flex-direction:column;gap:6px}
  .section-head h2{font-size:24px}
}
@media (max-width:400px){
  .cd-cell{padding:6px 9px}
  .cd-num{font-size:18px}
  .cd-prefix{display:none}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
    scroll-behavior:auto!important;
  }
}

/* roulang page: category2 */
:root{
  --ink:#1B1A16; --ink-2:#5F5A50; --ink-3:#8C867A;
  --paper:#F6F2EA; --surface:#FFFFFF; --surface-2:#EFEAE0;
  --line:#E4DED2; --line-strong:#D2CABB;
  --brand:#1F3B34; --brand-deep:#162C27; --brand-soft:#E7EDEA;
  --accent:#C0562A; --accent-soft:#F3E3D8;
  --live:#CF4A2E; --replay:#3F5F57;
  --r-sm:8px; --r-md:12px; --r-lg:16px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(27,26,22,.05), 0 6px 20px -12px rgba(27,26,22,.14);
  --sh-2:0 2px 4px rgba(27,26,22,.06), 0 14px 32px -14px rgba(27,26,22,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:'Noto Serif SC','Songti SC',serif;
  --sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--sans);font-size:17px;line-height:1.85;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease)}
a:hover{color:var(--brand-deep)}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;letter-spacing:.01em;color:var(--ink);margin:0}
h1{font-size:44px;line-height:1.35}
h2{font-size:30px;line-height:1.45}
h3{font-size:20px;line-height:1.55}
h4{font-size:17px;line-height:1.6}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:2px}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}
.section{padding:96px 0}
.section-tight{padding:64px 0}
@media (max-width:991.98px){.section{padding:72px 0}.section-tight{padding:48px 0}}
@media (max-width:767.98px){.section{padding:56px 0}.section-tight{padding:40px 0}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(246,242,234,0);border-bottom:1px solid transparent;
  transition:background .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.site-header.is-scrolled{background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 1px 2px rgba(27,26,22,.04)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;height:76px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{font-family:var(--serif);font-weight:700;font-size:24px;letter-spacing:-.03em;line-height:1}
.brand-divider{width:1px;height:18px;background:var(--line-strong);display:inline-block}
.brand-cn{font-family:var(--serif);font-size:15px;font-weight:600;letter-spacing:.02em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links .nav-link{
  position:relative;padding:6px 0;font-size:15px;color:var(--ink-2);font-weight:400;
  background:none;border:0;white-space:nowrap;transition:color .18s var(--ease);
}
.nav-links .nav-link:hover{color:var(--ink)}
.nav-links .nav-link.is-active{color:var(--ink);font-weight:500}
.nav-links .nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-10px;height:2px;background:var(--accent);
}
.header-actions{display:flex;align-items:center;gap:8px}
.icon-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border:0;background:transparent;color:var(--ink-2);cursor:pointer;border-radius:var(--r-sm);
  transition:color .18s var(--ease),background .18s var(--ease);
}
.icon-btn:hover{color:var(--ink);background:var(--surface-2)}
.icon-btn svg{width:19px;height:19px;stroke:currentColor;stroke-width:1.25;fill:none;stroke-linecap:round;stroke-linejoin:round}
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 22px;border-radius:var(--r-sm);
  background:var(--brand);color:var(--paper);font-size:15px;font-weight:500;letter-spacing:.02em;
  border:1px solid var(--brand);transition:background .18s var(--ease),color .18s var(--ease),box-shadow .18s var(--ease),transform .18s var(--ease);
}
.btn-cta:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;box-shadow:var(--sh-1)}
.btn-cta:active{transform:translateY(1px)}
.hamburger{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  border:0;background:transparent;color:var(--ink);cursor:pointer;
}
.hamburger svg{width:24px;height:24px;stroke:currentColor;stroke-width:1.25;fill:none;stroke-linecap:round}
@media (max-width:991.98px){
  .header-inner{height:64px}
  .brand-mark{font-size:21px}
  .brand-cn{font-size:13.5px}
}

/* offcanvas */
.offcanvas.mk-drawer{width:86%;max-width:360px;background:var(--paper);border-right:1px solid var(--line)}
.mk-drawer .offcanvas-header{padding:20px 24px;border-bottom:1px solid var(--line)}
.mk-drawer .offcanvas-body{padding:0}
.drawer-link{
  display:flex;align-items:center;min-height:56px;padding:0 24px;
  font-size:18px;color:var(--ink-2);border-bottom:1px solid var(--line);
  position:relative;transition:color .18s var(--ease),background .18s var(--ease);
}
.drawer-link:hover{color:var(--ink);background:var(--surface-2)}
.drawer-link.is-active{color:var(--brand);font-weight:500;background:var(--surface-2)}
.drawer-link.is-active::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent)}
.drawer-foot{padding:24px;border-top:1px solid var(--line)}
.drawer-foot .btn-cta{width:100%;height:48px}
.drawer-meta{margin-top:16px;font-size:13px;color:var(--ink-3);line-height:1.9}

/* ---------- pages ---------- */
.page-top{padding-top:76px}
@media (max-width:991.98px){.page-top{padding-top:64px}}

.breadcrumb{--bs-breadcrumb-divider:'/';font-size:13px;color:var(--ink-3);margin:0 0 16px;padding:0;background:transparent}
.breadcrumb .breadcrumb-item{color:var(--ink-3)}
.breadcrumb .breadcrumb-item a{color:var(--ink-3)}
.breadcrumb .breadcrumb-item a:hover{color:var(--ink)}
.breadcrumb .breadcrumb-item.active{color:var(--ink)}
.breadcrumb-item + .breadcrumb-item::before{color:var(--line-strong);padding:0 8px}

.cat-hero{padding:32px 0 56px;border-bottom:1px solid var(--line)}
.cat-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;
  color:var(--ink-3);text-transform:uppercase;margin-bottom:18px;
}
.cat-eyebrow::before{content:"";width:24px;height:1px;background:var(--accent)}
.cat-hero h1{max-width:820px}
.cat-lead{margin-top:18px;max-width:640px;color:var(--ink-2);font-size:17px;line-height:1.85}

.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);color:var(--ink-2);
  font-size:13px;font-weight:500;letter-spacing:.02em;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.chip:hover{color:var(--ink);border-color:var(--line-strong);background:var(--surface-2)}
.chip.is-on{background:var(--brand);border-color:var(--brand);color:#F6F2EA}
.chip.is-on:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff}

/* product grid */
.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.card-mk{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.card-mk:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--line-strong)}
.card-media{position:relative;background:var(--surface-2);border-bottom:1px solid var(--line);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover}
.ratio-16x9{aspect-ratio:16/9}
.ratio-4x3{aspect-ratio:4/3}
.card-body-mk{padding:24px}
.card-small .card-body-mk{padding:20px}

.badge-status{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:500;letter-spacing:.02em;
}
.badge-soft{background:var(--brand-soft);color:var(--replay)}
.badge-accent{background:var(--accent-soft);color:var(--accent)}
.badge-plain{background:var(--surface-2);color:var(--ink-2)}

.media-tag{position:absolute;top:14px;left:14px;z-index:2}
.media-num{
  position:absolute;right:14px;bottom:12px;z-index:2;
  font-family:var(--serif);font-size:13px;letter-spacing:.12em;color:#F6F2EA;
  background:rgba(27,26,22,.55);padding:4px 10px;border-radius:var(--r-pill);
  font-variant-numeric:tabular-nums;
}
.card-title-mk{font-family:var(--serif);font-size:20px;font-weight:600;line-height:1.5;color:var(--ink)}
.card-desc{font-size:15px;line-height:1.75;color:var(--ink-2);margin-top:10px}
.card-spec{
  margin-top:16px;padding-top:16px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:8px 20px;font-size:13px;color:var(--ink-3);
  font-variant-numeric:tabular-nums;
}
.card-spec span strong{color:var(--ink);font-weight:500}

.grid-lg{grid-column:span 8}
.grid-sm{grid-column:span 4}
.grid-half{grid-column:span 6}
@media (max-width:991.98px){
  .grid-lg,.grid-sm,.grid-half{grid-column:span 12}
}
.hero-card .card-media{border-bottom:0}
.hero-card{position:relative;display:flex;flex-direction:column;justify-content:flex-end;min-height:420px}
.hero-card .hero-overlay{
  position:absolute;inset:0;background:linear-gradient(180deg,rgba(27,26,22,.05) 0%,rgba(27,26,22,.72) 100%);
}
.hero-card .hero-text{position:relative;z-index:2;padding:32px;color:#F6F2EA}
.hero-card .hero-text .card-title-mk{color:#F6F2EA;font-size:26px}
.hero-card .hero-text .card-desc{color:rgba(246,242,234,.82);max-width:520px}
.hero-card .hero-text .card-spec{border-top-color:rgba(246,242,234,.24);color:rgba(246,242,234,.7)}
.hero-card .hero-text .card-spec span strong{color:#F6F2EA}
.hero-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}

.vert-card{display:flex;flex-direction:column;height:100%}
.vert-list{list-style:none;margin-top:16px;border-top:1px solid var(--line)}
.vert-list li{
  display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px solid var(--line);
  font-size:14px;color:var(--ink-2);
}
.vert-list li span:last-child{color:var(--ink);font-variant-numeric:tabular-nums;text-align:right}

.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:500;color:var(--brand);
  margin-top:20px;
}
.link-arrow::after{content:"→";transition:transform .18s var(--ease)}
.link-arrow:hover::after{transform:translateX(3px)}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px}

/* 交错两列 */
.stagger{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.stagger > :nth-child(even){margin-top:48px}
@media (max-width:991.98px){.stagger{grid-template-columns:1fr}.stagger > :nth-child(even){margin-top:0}}

/* 规格表 */
.spec-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.spec-head{padding:28px 32px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap}
.spec-head p{font-size:14px;color:var(--ink-3);margin:8px 0 0}
.table-mk{width:100%;border-collapse:collapse;font-size:15px}
.table-mk thead th{
  background:var(--surface-2);color:var(--ink-2);font-weight:500;font-size:13px;letter-spacing:.06em;
  text-align:left;padding:14px 20px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.table-mk tbody td{
  padding:16px 20px;border-bottom:1px solid var(--line);color:var(--ink-2);vertical-align:top;
  font-size:14.5px;
}
.table-mk tbody tr:last-child td{border-bottom:0}
.table-mk tbody tr:hover{background:#FBF8F2}
.table-mk tbody td:first-child{color:var(--ink);font-weight:500;white-space:nowrap}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.table-scroll::-webkit-scrollbar{height:6px}
.table-scroll::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:3px}
.table-scroll::-webkit-scrollbar-track{background:var(--surface-2)}

/* 流程 */
.flow{list-style:none;border-top:1px solid var(--line)}
.flow li{
  display:grid;grid-template-columns:64px 1fr auto;align-items:center;gap:24px;
  padding:24px 16px;border-bottom:1px solid var(--line);
  transition:background .18s var(--ease);
}
.flow li:hover{background:var(--surface-2)}
.flow-num{font-family:var(--serif);font-size:18px;color:var(--accent);font-variant-numeric:tabular-nums}
.flow-t{font-family:var(--serif);font-size:18px;color:var(--ink)}
.flow-d{font-size:14px;color:var(--ink-2);margin-top:4px;line-height:1.7}
.flow-arrow{font-size:18px;color:var(--ink-3)}
@media (max-width:767.98px){
  .flow li{grid-template-columns:40px 1fr;gap:16px;padding:20px 8px}
  .flow-arrow{display:none}
}

/* 数据条 */
.stat-band{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:48px 0}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px}
.stat-num{font-family:var(--serif);font-size:32px;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2}
.stat-num small{font-size:15px;color:var(--ink-2);margin-left:4px;font-family:var(--sans)}
.stat-label{font-size:13px;color:var(--ink-3);margin-top:8px}
@media (max-width:767.98px){
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .stat-num{font-size:26px}
}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:start}
@media (max-width:991.98px){.faq-grid{grid-template-columns:1fr;gap:32px}}
.accordion{--bs-accordion-border-width:0;--bs-accordion-bg:transparent;--bs-accordion-border-radius:0}
.accordion-item{background:transparent;border:0;border-top:1px solid var(--line)}
.accordion-item:last-child{border-bottom:1px solid var(--line)}
.accordion-button{
  background:transparent;color:var(--ink);font-family:var(--sans);font-size:17px;font-weight:500;
  padding:20px 0;border-radius:0!important;box-shadow:none!important;line-height:1.6;
}
.accordion-button:hover{color:var(--brand)}
.accordion-button:not(.collapsed){color:var(--brand);background:transparent}
.accordion-button::after{
  content:"+";background-image:none!important;width:auto;height:auto;
  font-size:20px;font-weight:400;line-height:1;color:var(--ink-3);
  display:flex;align-items:center;justify-content:center;transform:none!important;
  transition:color .18s var(--ease);
}
.accordion-button:not(.collapsed)::after{content:"−";color:var(--brand)}
.accordion-body{padding:0 0 20px;font-size:15px;line-height:1.8;color:var(--ink-2);padding-right:32px}

/* CTA */
.cta-band{background:var(--brand);color:#F6F2EA;border-radius:var(--r-lg);padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.cta-band h2{color:#F6F2EA;font-size:26px}
.cta-band p{color:rgba(246,242,234,.78);font-size:15px;margin-top:10px}
.cta-form{display:flex;gap:12px}
.form-control-mk{
  height:48px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;color:var(--ink);
  padding:0 16px;font-size:15px;width:100%;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.form-control-mk::placeholder{color:var(--ink-3)}
.form-control-mk:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,59,52,.12);outline:none}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 24px;
  border-radius:var(--r-sm);background:var(--accent);color:#fff;border:1px solid var(--accent);
  font-size:15px;font-weight:500;letter-spacing:.02em;white-space:nowrap;
  transition:background .18s var(--ease),box-shadow .18s var(--ease),transform .18s var(--ease);
}
.btn-accent:hover{background:#A8491F;border-color:#A8491F;color:#fff;box-shadow:var(--sh-1)}
.btn-accent:active{transform:translateY(1px)}
.btn-outline-mk{
  display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 24px;
  border-radius:var(--r-sm);border:1px solid var(--line-strong);background:transparent;
  color:var(--ink);font-size:15px;font-weight:500;letter-spacing:.02em;
  transition:border-color .18s var(--ease),color .18s var(--ease),background .18s var(--ease);
}
.btn-outline-mk:hover{border-color:var(--ink);color:var(--ink);background:var(--surface-2)}
.btn-ghost-light{
  display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 24px;
  border-radius:var(--r-sm);border:1px solid rgba(246,242,234,.42);background:transparent;
  color:#F6F2EA;font-size:15px;font-weight:500;
  transition:background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn-ghost-light:hover{background:rgba(246,242,234,.12);border-color:#F6F2EA;color:#fff}
@media (max-width:767.98px){
  .cta-band{grid-template-columns:1fr;padding:32px 24px;gap:24px}
  .cta-form{flex-direction:column}
  .cta-form .btn-accent{width:100%}
  .btn-outline-mk,.btn-accent,.btn-ghost-light{width:100%}
}

/* 动作条 */
.action-bar{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:28px 0;margin-top:64px;
}
.action-bar p{font-size:15px;color:var(--ink-2);margin:0}
.action-bar .btns{display:flex;gap:12px;flex-wrap:wrap}

/* footer */
.site-footer{background:var(--brand-deep);color:rgba(246,242,234,.78);padding:64px 0 32px;margin-top:96px;border-top:1px solid rgba(255,255,255,.12)}
.site-footer .brand{color:#F6F2EA}
.site-footer .brand:hover{color:#fff}
.site-footer .brand-divider{background:rgba(246,242,234,.32)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:575.98px){.footer-grid{grid-template-columns:1fr;gap:28px}}
.f-brand p{font-size:14px;line-height:1.85;color:rgba(246,242,234,.66);margin-top:16px;max-width:320px}
.f-title{font-size:13px;letter-spacing:.16em;color:rgba(246,242,234,.5);margin:0 0 16px}
.f-list{list-style:none;padding:0;margin:0}
.f-list li{margin-bottom:10px}
.f-list a{color:rgba(246,242,234,.78);font-size:14px}
.f-list a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.f-info li{display:flex;justify-content:space-between;gap:12px;font-size:13.5px;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.f-info li:last-child{border-bottom:0}
.f-info .k{color:rgba(246,242,234,.5)}
.f-info .v{color:rgba(246,242,234,.86);font-variant-numeric:tabular-nums}
.copyright{
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12px;color:rgba(246,242,234,.5);
}

/* back to top */
.to-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:50%;
  background:var(--paper);border:1px solid var(--line-strong);color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;z-index:1020;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .18s var(--ease),transform .18s var(--ease),background .18s var(--ease),color .18s var(--ease),visibility .18s;
  box-shadow:var(--sh-1);cursor:pointer;
}
.to-top.is-on{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand);color:var(--paper);border-color:var(--brand)}
.to-top svg{width:18px;height:18px;stroke:currentColor;stroke-width:1.4;fill:none;stroke-linecap:round;stroke-linejoin:round}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.001ms!important;animation-duration:.001ms!important;scroll-behavior:auto!important}
  .card-mk:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --ink:#1B1A16; --ink-2:#5F5A50; --ink-3:#8C867A;
  --paper:#F6F2EA; --surface:#FFFFFF; --surface-2:#EFEAE0;
  --line:#E4DED2; --line-strong:#D2CABB;
  --brand:#1F3B34; --brand-deep:#162C27; --brand-soft:#E7EDEA;
  --accent:#C0562A; --accent-soft:#F3E3D8;
  --live:#CF4A2E; --replay:#3F5F57;
  --r-sm:8px; --r-md:12px; --r-lg:16px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(27,26,22,.05), 0 6px 20px -12px rgba(27,26,22,.14);
  --sh-2:0 2px 4px rgba(27,26,22,.06), 0 14px 32px -14px rgba(27,26,22,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  font-size:17px;line-height:1.85;font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{
  font-family:'Noto Serif SC','Songti SC',serif;
  font-weight:600;letter-spacing:.01em;color:var(--ink);margin:0;
}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
a{color:var(--ink);text-decoration:none;transition:color 180ms var(--ease)}
a:hover{color:var(--brand)}
img{max-width:100%;display:block;height:auto}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
::selection{background:var(--accent-soft);color:var(--ink)}

.container{width:100%;max-width:1200px;margin-left:auto;margin-right:auto;padding-left:24px;padding-right:24px}
.section{padding:96px 0}
.section-sm{padding:72px 0}
.tabular{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  --hdr-ink:#F6F2EA; --hdr-muted:rgba(246,242,234,.78); --hdr-line:rgba(246,242,234,.32);
  height:76px;display:flex;align-items:center;
  background:transparent;border-bottom:1px solid transparent;
  transition:background 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease);
}
.site-header.is-scrolled{
  --hdr-ink:var(--ink); --hdr-muted:var(--ink-2); --hdr-line:var(--line-strong);
  background:var(--paper);border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(27,26,22,.05);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  width:100%;max-width:1200px;margin:0 auto;padding:0 24px;
}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--hdr-ink);line-height:1}
.brand-mark{font-family:'Noto Serif SC','Songti SC',serif;font-weight:700;font-size:21px;letter-spacing:-.02em}
.brand-divider{width:1px;height:18px;background:currentColor;opacity:.35;display:inline-block}
.brand-cn{font-family:'Noto Sans SC',sans-serif;font-size:15px;letter-spacing:.06em;font-weight:500}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;padding:6px 0;font-size:15px;font-weight:500;
  color:var(--hdr-muted);letter-spacing:.02em;transition:color 180ms var(--ease);
}
.nav-link:hover,.nav-link:focus-visible{color:var(--hdr-ink)}
.nav-link.is-active{color:var(--hdr-ink)}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-10px;height:2px;background:var(--accent);
}
.header-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid transparent;border-radius:var(--r-sm);
  color:var(--hdr-ink);cursor:pointer;transition:background 180ms var(--ease),border-color 180ms var(--ease);
}
.icon-btn:hover{background:rgba(127,127,127,.1);border-color:var(--hdr-line)}
.hamburger{
  width:44px;height:44px;display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:transparent;border:1px solid var(--hdr-line);border-radius:var(--r-sm);cursor:pointer;
}
.hamburger span{display:block;width:18px;height:1.5px;background:var(--hdr-ink);transition:transform 180ms var(--ease)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);border:1px solid transparent;
  font-family:'Noto Sans SC',sans-serif;font-size:15px;font-weight:500;letter-spacing:.02em;line-height:1.2;
  cursor:pointer;transition:background 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease),transform 180ms var(--ease);
}
.btn:active{transform:translateY(1px)}
.btn:focus{box-shadow:none}
.btn-primary,.btn-mk-primary{background:var(--brand);color:var(--paper);border-color:var(--brand)}
.btn-primary:hover,.btn-mk-primary:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:var(--paper);box-shadow:var(--sh-1)}
.btn-mk-ghost{background:transparent;border-color:var(--line-strong);color:var(--ink)}
.btn-mk-ghost:hover{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-paper{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.btn-paper:hover{background:#fff;border-color:#fff;color:var(--ink);box-shadow:var(--sh-1)}
.btn-hero-ghost{background:transparent;border-color:rgba(246,242,234,.45);color:#F6F2EA}
.btn-hero-ghost:hover{background:rgba(246,242,234,.12);border-color:#F6F2EA;color:#F6F2EA}
.btn-cta{height:44px;padding:0 20px;font-size:14px;background:var(--brand);border-color:var(--brand);color:var(--paper)}
.btn-cta:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:var(--paper)}
.site-header:not(.is-scrolled) .btn-cta{background:transparent;border-color:rgba(246,242,234,.5);color:#F6F2EA}
.site-header:not(.is-scrolled) .btn-cta:hover{background:rgba(246,242,234,.14);border-color:#F6F2EA;color:#F6F2EA}
.text-link{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:500;
  color:var(--brand);letter-spacing:.01em;
}
.text-link .arw{transition:transform 180ms var(--ease)}
.text-link:hover{color:var(--brand-deep);text-decoration:underline;text-underline-offset:4px}
.text-link:hover .arw{transform:translateX(3px)}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  padding:150px 0 88px;
  background-image:linear-gradient(rgba(27,26,22,.62),rgba(27,26,22,.62)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;background-repeat:no-repeat;
  color:#F6F2EA;
}
.breadcrumb-mk{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(246,242,234,.7);margin-bottom:16px}
.breadcrumb-mk a{color:rgba(246,242,234,.7)}
.breadcrumb-mk a:hover{color:#F6F2EA;text-decoration:underline;text-underline-offset:4px}
.breadcrumb-mk .current{color:#F6F2EA}
.page-hero h1{
  color:#F6F2EA;font-size:44px;line-height:1.35;letter-spacing:.01em;max-width:760px;
}
.hero-lead{
  margin-top:20px;max-width:640px;font-size:17px;line-height:1.8;color:rgba(246,242,234,.86);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-meta{margin-top:24px;font-size:13px;color:rgba(246,242,234,.62);letter-spacing:.02em}

/* ---------- section head ---------- */
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  padding-bottom:20px;border-bottom:1px solid var(--line);margin-bottom:40px;
}
.sec-title{font-size:30px;line-height:1.4}
.sec-desc{margin-top:10px;font-size:14px;color:var(--ink-3);line-height:1.7}
.sec-kicker{
  display:inline-block;font-size:12px;letter-spacing:.18em;color:var(--ink-3);
  margin-bottom:12px;
}

/* ---------- badges ---------- */
.badge-mk{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:500;line-height:1.6;letter-spacing:.02em;
  background:var(--surface-2);color:var(--ink-2);
}
.badge-mk.is-news{background:var(--brand-soft);color:var(--brand)}
.badge-mk.is-service{background:var(--accent-soft);color:var(--accent)}
.badge-mk.is-product{background:rgba(63,95,87,.13);color:var(--replay)}
.badge-mk .dot-live{width:6px;height:6px;border-radius:50%;background:currentColor;display:inline-block}

/* ---------- pinned ---------- */
.pinned{
  background:var(--surface-2);
  border-left:3px solid var(--accent);
  border-radius:var(--r-md);
  padding:32px;
}
.thumb{
  position:relative;overflow:hidden;border-radius:var(--r-md);border:1px solid var(--line);
  aspect-ratio:16/9;background-color:var(--surface-2);
  background-image:repeating-linear-gradient(45deg,rgba(27,26,22,.06) 0 6px,transparent 6px 12px);
}
.thumb img{width:100%;height:100%;object-fit:cover;transition:border-color 180ms var(--ease)}
.pinned h2{font-size:26px;line-height:1.5;margin:16px 0 14px}
.pinned .pin-sum{font-size:15.5px;line-height:1.85;color:var(--ink-2)}
.pin-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;font-size:13px;color:var(--ink-3)}
.pin-meta .sep{width:1px;height:12px;background:var(--line-strong);display:inline-block}

/* ---------- news rows ---------- */
.news-list{border-top:1px solid var(--line)}
.news-row{display:block;padding:28px 0;border-bottom:1px solid var(--line);transition:background 180ms var(--ease)}
.news-row:hover{background:rgba(239,234,224,.5)}
.news-row h3{font-size:22px;line-height:1.55;margin:14px 0 10px;transition:color 180ms var(--ease)}
.news-row:hover h3{color:var(--brand)}
.news-sum{
  font-size:15px;line-height:1.75;color:var(--ink-2);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:12px;margin-top:18px;font-size:13px;color:var(--ink-3)}
.news-meta .sep{width:1px;height:12px;background:var(--line-strong);display:inline-block}
.news-meta .arw{margin-left:auto;font-size:18px;color:var(--ink-3);transition:transform 180ms var(--ease),color 180ms var(--ease)}
.news-row:hover .news-meta .arw{transform:translateX(3px);color:var(--accent)}
.news-row:hover .thumb img{border-color:var(--line-strong)}

/* ---------- stats ---------- */
.stats{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:40px 24px;border-left:1px solid var(--line-strong)}
.stat:first-child{border-left:0;padding-left:0}
.stat-num{font-family:'Noto Serif SC',serif;font-size:32px;line-height:1.2;color:var(--brand);font-variant-numeric:tabular-nums}
.stat-label{margin-top:8px;font-size:12px;letter-spacing:.06em;color:var(--ink-2)}

/* ---------- flow list ---------- */
.flow{list-style:none;border-left:1px solid var(--line-strong);margin-top:8px}
.flow li{position:relative;padding:26px 0 26px 32px;border-bottom:1px solid var(--line);transition:background 180ms var(--ease)}
.flow li:first-child{padding-top:8px}
.flow li:hover{background:var(--surface-2)}
.flow .idx{
  font-family:'Noto Serif SC',serif;font-size:16px;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.flow h3{font-size:19px;margin:6px 0 8px}
.flow p{font-size:15px;line-height:1.8;color:var(--ink-2);margin:0;max-width:720px}

/* ---------- faq ---------- */
.accordion-mk{--bs-accordion-bg:transparent;--bs-accordion-border-width:0;--bs-accordion-btn-focus-box-shadow:none;--bs-accordion-border-radius:0}
.accordion-mk .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);border-radius:0}
.accordion-mk .accordion-item:first-of-type{border-top:1px solid var(--line)}
.accordion-mk .accordion-button{
  position:relative;background:transparent;box-shadow:none;
  padding:20px 40px 20px 0;font-size:17px;font-weight:500;color:var(--ink);
  font-family:'Noto Sans SC',sans-serif;line-height:1.7;border-radius:0;
}
.accordion-mk .accordion-button:not(.collapsed){color:var(--brand);background:transparent}
.accordion-mk .accordion-button::before,
.accordion-mk .accordion-button::after{
  content:"";position:absolute;right:6px;top:50%;background:var(--ink-2);
  transition:transform 180ms var(--ease),opacity 180ms var(--ease);
}
.accordion-mk .accordion-button::before{width:14px;height:1px;margin-top:-.5px}
.accordion-mk .accordion-button::after{width:1px;height:14px;margin-top:-7px}
.accordion-mk .accordion-button:not(.collapsed)::after{transform:rotate(90deg);opacity:0}
.accordion-mk .accordion-button:hover::before,
.accordion-mk .accordion-button:hover::after{background:var(--brand)}
.accordion-mk .accordion-body{
  padding:0 40px 20px 0;font-size:15px;line-height:1.85;color:var(--ink-2);
}
.faq-aside h2{font-size:30px;line-height:1.4}
.faq-aside p{margin-top:16px;font-size:15px;line-height:1.8;color:var(--ink-2);max-width:420px}

/* ---------- cta ---------- */
.cta-band{
  background:var(--brand);color:#F6F2EA;border-radius:var(--r-lg);
  padding:48px;display:grid;grid-template-columns:1fr 1.15fr;gap:40px;align-items:center;
}
.cta-band h2{color:#F6F2EA;font-size:28px;line-height:1.45}
.cta-band .cta-note{margin-top:12px;font-size:14px;color:rgba(246,242,234,.72);line-height:1.8}
.subscribe-row{display:flex;gap:12px}
.cta-form .form-control{
  height:48px;width:100%;padding:0 16px;font-size:15px;
  background:rgba(255,255,255,.08);border:1px solid rgba(246,242,234,.3);
  border-radius:var(--r-sm);color:#F6F2EA;transition:border-color 180ms var(--ease),background 180ms var(--ease),box-shadow 180ms var(--ease);
}
.cta-form .form-control::placeholder{color:rgba(246,242,234,.55)}
.cta-form .form-control:focus{
  outline:none;background:rgba(255,255,255,.13);border-color:#F6F2EA;color:#F6F2EA;
  box-shadow:0 0 0 3px rgba(246,242,234,.16);
}
.form-tip{margin-top:12px;font-size:13px;color:rgba(246,242,234,.6)}
.form-done{
  margin-top:16px;padding:16px 20px;border:1px solid rgba(246,242,234,.35);border-radius:var(--r-sm);
  font-size:14px;color:#F6F2EA;display:flex;align-items:center;gap:10px;
}
.form-done svg{flex:0 0 auto}

/* ---------- footer ---------- */
.site-footer{
  background:var(--brand-deep);color:rgba(246,242,234,.78);
  padding:64px 0 24px;margin-top:96px;
}
.site-footer .brand{color:#F6F2EA}
.site-footer .f-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(246,242,234,.68);max-width:320px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px}
.f-title{font-size:14px;font-weight:500;color:#F6F2EA;letter-spacing:.1em;margin:0 0 18px}
.f-list{list-style:none}
.f-list li{margin-bottom:12px}
.f-list a{font-size:14px;color:rgba(246,242,234,.7)}
.f-list a:hover{color:#F6F2EA;text-decoration:underline;text-underline-offset:4px}
.f-info li{display:flex;justify-content:space-between;gap:12px;font-size:13px;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.1)}
.f-info .k{color:rgba(246,242,234,.52);white-space:nowrap}
.f-info .v{color:rgba(246,242,234,.88);text-align:right}
.copyright{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:40px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);
  font-size:12px;color:rgba(246,242,234,.55);letter-spacing:.02em;
}

/* ---------- offcanvas ---------- */
.mk-offcanvas{background:var(--paper);color:var(--ink);width:min(88vw,340px)}
.mk-offcanvas .offcanvas-header{padding:20px 24px;border-bottom:1px solid var(--line)}
.mk-offcanvas .brand{color:var(--ink)}
.mk-offcanvas .brand-divider{background:var(--ink)}
.mk-offcanvas .offcanvas-body{padding:0 0 24px;display:flex;flex-direction:column}
.mobile-nav{display:flex;flex-direction:column}
.m-link{
  display:flex;align-items:center;height:56px;padding:0 24px;font-size:18px;
  color:var(--ink);border-bottom:1px solid var(--line);border-left:3px solid transparent;
  transition:background 180ms var(--ease),border-color 180ms var(--ease),color 180ms var(--ease);
}
.m-link:hover{background:var(--surface-2);color:var(--brand)}
.m-link.is-active{border-left-color:var(--accent);color:var(--brand);background:var(--surface-2);font-weight:500}
.m-footer{margin-top:auto;padding:24px}
.m-tip{margin-top:14px;font-size:13px;line-height:1.7;color:var(--ink-3)}

/* ---------- back top ---------- */
.back-top{
  position:fixed;right:24px;bottom:24px;z-index:1020;
  width:48px;height:48px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--paper);border:1px solid var(--line-strong);border-radius:var(--r-sm);
  color:var(--ink);cursor:pointer;opacity:0;pointer-events:none;transform:translateY(6px);
  transition:opacity 180ms var(--ease),transform 180ms var(--ease),border-color 180ms var(--ease),color 180ms var(--ease);
  box-shadow:var(--sh-1);
}
.back-top.is-visible{opacity:1;pointer-events:auto;transform:translateY(0)}
.back-top:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .nav-links{gap:18px}
  .nav-link{font-size:14px}
  .page-hero h1{font-size:38px}
}
@media (max-width:991px){
  .site-header{height:64px}
  .header-inner{height:64px;padding:0 16px}
  .page-hero{padding:118px 0 64px}
  .page-hero h1{font-size:32px;line-height:1.4}
  .section{padding:72px 0}
  .section-sm{padding:56px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat{padding:28px 20px;border-left:1px solid var(--line-strong)}
  .stat:nth-child(odd){border-left:0;padding-left:0}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .cta-band{grid-template-columns:1fr;padding:32px;gap:24px}
  .pinned{padding:24px}
  .pinned h2{font-size:22px}
  .news-row h3{font-size:20px}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.8}
  .container{padding-left:16px;padding-right:16px}
  .header-inner{padding:0 16px}
  .brand-cn{font-size:13px}
  .brand-mark{font-size:19px}
  .brand-divider{height:16px}
  .page-hero{padding:104px 0 56px}
  .page-hero h1{font-size:30px}
  .hero-lead{font-size:15.5px;margin-top:16px}
  .hero-actions{margin-top:24px}
  .hero-actions .btn{width:100%}
  .sec-title{font-size:24px}
  .pinned{padding:20px;border-left-width:3px}
  .pinned h2{font-size:20px}
  .pinned .pin-sum{font-size:15px}
  .news-row{padding:24px 0}
  .news-row h3{font-size:19px;margin-top:12px}
  .news-meta{margin-top:14px}
  .news-meta .arw{margin-left:0}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat-num{font-size:26px}
  .flow li{padding:20px 0 20px 24px}
  .faq-aside h2{font-size:24px}
  .accordion-mk .accordion-button{font-size:16px;padding-right:34px}
  .cta-band{padding:24px;border-radius:var(--r-md)}
  .cta-band h2{font-size:22px}
  .subscribe-row{flex-direction:column}
  .subscribe-row .btn{width:100%}
  .site-footer{padding:48px 0 20px;margin-top:64px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .copyright{flex-direction:column;gap:8px}
  .back-top{right:16px;bottom:16px;width:44px;height:44px}
}
@media (max-width:399px){
  .page-hero h1{font-size:26px}
  .stat-num{font-size:24px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: category4 */
:root{
  --ink:#1B1A16;
  --ink-2:#5F5A50;
  --ink-3:#8C867A;
  --paper:#F6F2EA;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --line:#E4DED2;
  --line-strong:#D2CABB;
  --brand:#1F3B34;
  --brand-deep:#162C27;
  --brand-soft:#E7EDEA;
  --accent:#C0562A;
  --accent-soft:#F3E3D8;
  --live:#CF4A2E;
  --replay:#3F5F57;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(27,26,22,.05), 0 6px 20px -12px rgba(27,26,22,.14);
  --sh-2:0 2px 4px rgba(27,26,22,.06), 0 14px 32px -14px rgba(27,26,22,.22);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font-serif:'Noto Serif SC','Songti SC',serif;
  --font-sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color 180ms var(--ease);}
a:hover{color:var(--accent);}
button{font-family:inherit;}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:600;letter-spacing:.01em;color:var(--ink);margin:0;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px;}
  body{font-size:16px;}
}

/* ---------- header ---------- */
.site-header{
  --nav-fg:rgba(246,242,234,.82);
  --nav-fg-strong:#F6F2EA;
  position:fixed;
  top:0;left:0;right:0;
  z-index:1030;
  height:76px;
  display:flex;
  align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.site-header.is-scrolled{
  --nav-fg:var(--ink-2);
  --nav-fg-strong:var(--ink);
  background:rgba(246,242,234,.96);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(27,26,22,.04);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--nav-fg-strong);text-decoration:none;}
.brand:hover{color:var(--nav-fg-strong);}
.brand-mark{font-family:var(--font-serif);font-weight:700;font-size:23px;letter-spacing:-.03em;line-height:1;}
.brand-divider{width:1px;height:22px;background:currentColor;opacity:.34;}
.brand-cn{font-family:var(--font-serif);font-size:15px;letter-spacing:.06em;line-height:1;}
.nav-links{display:flex;align-items:center;}
.site-header .nav-link{
  position:relative;
  padding:6px 0;
  margin:0 15px;
  font-size:15px;
  font-weight:500;
  color:var(--nav-fg);
  letter-spacing:.01em;
  white-space:nowrap;
  transition:color 180ms var(--ease);
}
.site-header .nav-link:hover{color:var(--nav-fg-strong);}
.site-header .nav-link.is-active{color:var(--nav-fg-strong);}
.site-header .nav-link.is-active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-9px;
  height:2px;
  background:var(--accent);
}
.header-tools{display:flex;align-items:center;gap:6px;}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid transparent;border-radius:var(--r-sm);
  color:var(--nav-fg);
  cursor:pointer;
  transition:color 180ms var(--ease),background 180ms var(--ease),border-color 180ms var(--ease);
}
.icon-btn:hover{color:var(--nav-fg-strong);border-color:rgba(140,134,122,.35);}
.icon-btn svg{width:19px;height:19px;stroke:currentColor;stroke-width:1.25;fill:none;}
.hamburger{
  width:46px;height:46px;
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid rgba(140,134,122,.4);border-radius:var(--r-sm);
  color:var(--nav-fg-strong);cursor:pointer;
  transition:border-color 180ms var(--ease);
}
.hamburger:hover{border-color:var(--nav-fg-strong);}
.hamburger span{display:block;width:18px;height:1.6px;background:currentColor;position:relative;}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:1.6px;background:currentColor;
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  font-size:15px;font-weight:500;letter-spacing:.02em;line-height:1;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  text-decoration:none;
  cursor:pointer;
  transition:background 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease),box-shadow 180ms var(--ease),transform 180ms var(--ease);
}
.btn-brand{background:var(--brand);color:var(--paper);}
.btn-brand:hover{background:var(--brand-deep);color:#fff;box-shadow:var(--sh-1);}
.btn-brand:active{transform:translateY(1px);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#A9481F;color:#fff;box-shadow:var(--sh-1);}
.btn-accent:active{transform:translateY(1px);}
.btn-outline{background:transparent;border-color:var(--line-strong);color:var(--ink);}
.btn-outline:hover{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-outline-light{background:transparent;border-color:rgba(246,242,234,.42);color:var(--paper);}
.btn-outline-light:hover{border-color:var(--paper);color:#fff;background:rgba(246,242,234,.06);}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;
  height:auto;padding:0;border:0;background:none;
  font-size:15px;font-weight:500;color:var(--brand);
}
.btn-text .arrow{transition:transform 180ms var(--ease);}
.btn-text:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}
.btn-text:hover .arrow{transform:translateX(3px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.site-header .btn-cta{height:40px;padding:0 20px;font-size:14px;}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:148px 0 76px;
  background:url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  color:var(--paper);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(27,26,22,.80) 0%,rgba(27,26,22,.66) 60%,rgba(27,26,22,.74) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(246,242,234,.62);margin-bottom:20px;padding:0;background:none;}
.breadcrumb a{color:rgba(246,242,234,.72);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:rgba(246,242,234,.95);}
.page-hero .h1-brand{
  display:block;
  font-family:var(--font-serif);
  font-size:22px;
  letter-spacing:.12em;
  color:var(--accent-soft);
  margin-bottom:10px;
}
.page-title{
  font-size:44px;
  line-height:1.28;
  color:#F9F6EF;
  max-width:820px;
}
.page-lead{
  margin-top:18px;
  max-width:640px;
  font-size:17px;
  line-height:1.75;
  color:rgba(246,242,234,.78);
}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:12px 28px;
  margin-top:32px;
  padding-top:24px;
  border-top:1px solid rgba(246,242,234,.16);
  font-size:14px;
  color:rgba(246,242,234,.7);
}
.hero-meta .m-k{color:rgba(246,242,234,.48);margin-right:8px;}
.hero-meta .m-v{font-variant-numeric:tabular-nums;color:#F6F2EA;}

/* ---------- section base ---------- */
.section{padding:96px 0;}
.section-sm{padding:72px 0;}
.section-alt{background:var(--surface-2);}
.sec-head{margin-bottom:48px;max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.16em;font-weight:500;
  color:var(--ink-3);
  margin-bottom:14px;
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);}
.sec-title{font-size:30px;line-height:1.4;}
.sec-desc{margin-top:14px;color:var(--ink-2);font-size:16px;line-height:1.8;max-width:680px;}

/* ---------- support layout ---------- */
.support-wrap{
  display:grid;
  grid-template-columns:260px minmax(0,1fr);
  gap:56px;
  align-items:start;
}
.toc{
  position:sticky;
  top:100px;
  border-left:1px solid var(--line);
  padding-left:0;
}
.toc-title{
  font-size:12px;
  letter-spacing:.16em;
  color:var(--ink-3);
  margin-bottom:16px;
  padding-left:20px;
  font-weight:500;
}
.toc-list{list-style:none;margin:0;padding:0;}
.toc-list li a{
  display:block;
  padding:12px 16px 12px 20px;
  margin-left:-1px;
  border-left:3px solid transparent;
  font-size:15px;
  color:var(--ink-2);
  transition:color 180ms var(--ease),border-color 180ms var(--ease),background 180ms var(--ease);
}
.toc-list li a .num{
  font-variant-numeric:tabular-nums;
  font-size:12px;
  color:var(--ink-3);
  margin-right:8px;
}
.toc-list li a:hover{color:var(--ink);background:rgba(239,234,224,.5);}
.toc-list li a.is-active{
  border-left-color:var(--brand);
  color:var(--brand);
  font-weight:500;
}
.toc-list li a.is-active .num{color:var(--accent);}
.toc-foot{
  margin-top:28px;
  padding:20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  font-size:13px;
  line-height:1.75;
  color:var(--ink-2);
}
.toc-foot strong{display:block;font-size:14px;color:var(--ink);font-weight:500;margin-bottom:6px;}

/* ---------- faq groups ---------- */
.faq-group{margin-bottom:56px;}
.faq-group:last-child{margin-bottom:0;}
.group-head{
  display:flex;align-items:baseline;gap:16px;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
  margin-bottom:8px;
}
.group-head .g-num{
  font-family:var(--font-serif);
  font-size:15px;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  letter-spacing:.06em;
}
.group-head h2{font-size:22px;}
.group-head .g-note{font-size:13px;color:var(--ink-3);margin-left:auto;}
.accordion{--bs-accordion-bg:transparent;--bs-accordion-border-width:0;--bs-accordion-border-radius:0;}
.accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
  border-radius:0;
}
.accordion-button{
  padding:20px 44px 20px 0;
  background:transparent;
  font-size:17px;
  font-weight:500;
  color:var(--ink);
  line-height:1.65;
  box-shadow:none;
  border-radius:0;
}
.accordion-button:not(.collapsed){color:var(--brand);background:transparent;box-shadow:none;}
.accordion-button:focus{box-shadow:none;border-color:transparent;}
.accordion-button:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.accordion-button::after{
  content:"";
  width:15px;height:15px;
  margin-left:auto;
  margin-right:0;
  flex:0 0 auto;
  background-image:linear-gradient(var(--ink-2),var(--ink-2)),linear-gradient(var(--ink-2),var(--ink-2));
  background-position:center,center;
  background-size:15px 1px,1px 15px;
  background-repeat:no-repeat;
  transition:background-image 180ms var(--ease),transform 180ms var(--ease);
  position:absolute;
  right:4px;
  top:26px;
}
.accordion-button:not(.collapsed)::after{
  background-image:linear-gradient(var(--accent),var(--accent));
  background-position:center;
  background-size:15px 1px;
  transform:none;
}
.accordion-button:hover{color:var(--brand);}
.accordion-body{
  padding:0 44px 22px 0;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-2);
}
.accordion-body p{margin-bottom:.8em;}
.accordion-body ul{list-style:none;margin:8px 0 0;}
.accordion-body ul li{
  position:relative;
  padding-left:16px;
  margin-bottom:6px;
}
.accordion-body ul li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:5px;height:5px;
  border-radius:50%;
  background:var(--brand);
  opacity:.7;
}
.accordion-body .tip{
  display:block;
  margin-top:12px;
  padding:12px 16px;
  background:var(--surface);
  border-left:3px solid var(--accent);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  font-size:14px;
  color:var(--ink-2);
}

/* ---------- flow ---------- */
.flow{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:28px;
  position:relative;
  padding-top:34px;
}
.flow::before{
  content:"";
  position:absolute;
  top:6px;left:6px;right:6px;
  height:1px;
  background:var(--line-strong);
}
.flow-item{position:relative;}
.flow-item::before{
  content:"";
  position:absolute;
  top:-33px;left:2px;
  width:9px;height:9px;
  border-radius:50%;
  background:var(--paper);
  border:1.5px solid var(--brand);
}
.flow-item .f-step{
  font-family:var(--font-serif);
  font-size:13px;
  letter-spacing:.14em;
  color:var(--accent);
  margin-bottom:8px;
}
.flow-item h3{font-size:18px;margin-bottom:8px;}
.flow-item p{font-size:14px;color:var(--ink-2);line-height:1.75;margin:0;}

/* ---------- media block ---------- */
.media-block{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:56px;
  align-items:center;
}
.media-figure{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--surface);
  box-shadow:var(--sh-1);
}
.media-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.media-figure figcaption{
  padding:12px 18px;
  font-size:13px;
  color:var(--ink-3);
  border-top:1px solid var(--line);
}
.media-copy h2{font-size:28px;margin-bottom:16px;}
.media-copy p{color:var(--ink-2);font-size:16px;}
.check-list{list-style:none;margin:22px 0 0;}
.check-list li{
  position:relative;
  padding-left:26px;
  margin-bottom:12px;
  font-size:15px;
  color:var(--ink-2);
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:12px;height:7px;
  border-left:1.6px solid var(--brand);
  border-bottom:1.6px solid var(--brand);
  transform:rotate(-45deg);
}

/* ---------- channel list ---------- */
.channel-list{border-top:1px solid var(--line);}
.channel-row{
  display:grid;
  grid-template-columns:64px minmax(0,1.1fr) minmax(0,1.5fr) auto;
  gap:24px;
  align-items:center;
  padding:26px 8px;
  border-bottom:1px solid var(--line);
  transition:background 180ms var(--ease);
}
.channel-row:hover{background:rgba(255,255,255,.7);}
.channel-row .c-num{
  font-family:var(--font-serif);
  font-size:15px;
  color:var(--ink-3);
  font-variant-numeric:tabular-nums;
}
.channel-row h3{font-size:18px;}
.channel-row p{margin:0;font-size:14px;color:var(--ink-2);line-height:1.7;}
.channel-row .c-act{font-size:14px;color:var(--brand);white-space:nowrap;}
.channel-row .c-act:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}

/* ---------- stats ---------- */
.stats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.stat{
  padding:36px 28px;
  border-right:1px solid var(--line);
}
.stat:last-child{border-right:0;}
.stat .s-num{
  font-family:var(--font-serif);
  font-size:32px;
  line-height:1.2;
  font-variant-numeric:tabular-nums;
  color:var(--brand);
  letter-spacing:-.01em;
}
.stat .s-num small{font-size:14px;font-family:var(--font-sans);color:var(--ink-3);margin-left:4px;letter-spacing:0;}
.stat .s-label{margin-top:8px;font-size:13px;color:var(--ink-2);line-height:1.6;}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--brand);
  border-radius:var(--r-lg);
  padding:48px;
  color:var(--paper);
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:40px;
  align-items:center;
}
.cta-band h2{color:#F9F6EF;font-size:26px;line-height:1.4;margin-bottom:10px;}
.cta-band p{color:rgba(246,242,234,.72);font-size:15px;margin:0;line-height:1.75;}
.sub-form{display:flex;gap:12px;flex-wrap:wrap;}
.sub-form .form-control{flex:1 1 220px;min-width:0;}
.cta-band .form-note{margin-top:12px;font-size:13px;color:rgba(246,242,234,.58);}
.form-control{
  height:48px;
  padding:0 16px;
  font-size:15px;
  color:var(--ink);
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  box-shadow:none;
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.form-control::placeholder{color:var(--ink-3);}
.form-control:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(31,59,52,.12);
  background:var(--surface);
  color:var(--ink);
}
.form-success{
  display:none;
  align-items:center;
  gap:10px;
  padding:16px 18px;
  border:1px solid rgba(246,242,234,.4);
  border-radius:var(--r-sm);
  font-size:14px;
  color:#F9F6EF;
}
.form-success.show{display:flex;}
.form-success svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8;flex:0 0 auto;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--brand-deep);
  color:rgba(246,242,234,.78);
  padding:72px 0 0;
  margin-top:96px;
}
.site-footer .brand{color:#F6F2EA;margin-bottom:18px;}
.site-footer .brand-mark,.site-footer .brand-cn{color:#F6F2EA;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.25fr;
  gap:40px;
}
.f-brand p{font-size:14px;line-height:1.85;color:rgba(246,242,234,.6);max-width:320px;margin:0;}
.f-title{
  font-size:12px;
  letter-spacing:.16em;
  color:rgba(246,242,234,.45);
  margin-bottom:18px;
  font-weight:500;
}
.f-list{list-style:none;margin:0;padding:0;}
.f-list li{margin-bottom:12px;}
.f-list a{color:rgba(246,242,234,.78);font-size:14px;transition:color 180ms var(--ease);}
.f-list a:hover{color:#F6F2EA;}
.f-info li{
  display:flex;
  justify-content:space-between;
  gap:12px;
  font-size:14px;
  padding:10px 0;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.f-info li:last-child{border-bottom:0;}
.f-info .k{color:rgba(246,242,234,.45);flex:0 0 auto;}
.f-info .v{color:rgba(246,242,234,.82);text-align:right;font-variant-numeric:tabular-nums;}
.copyright{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  margin-top:56px;
  padding:24px 0;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:12px;
  color:rgba(246,242,234,.5);
}

/* ---------- back to top ---------- */
.to-top{
  position:fixed;
  right:24px;bottom:28px;
  width:48px;height:48px;
  display:none;
  align-items:center;justify-content:center;
  background:var(--paper);
  border:1px solid var(--line-strong);
  border-radius:var(--r-sm);
  color:var(--ink);
  cursor:pointer;
  z-index:1020;
  transition:background 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease);
}
.to-top.show{display:inline-flex;}
.to-top:hover{background:var(--brand);color:var(--paper);border-color:var(--brand);}
.to-top svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.5;}

/* ---------- offcanvas ---------- */
.mobile-drawer{
  --bs-offcanvas-width:min(88vw,380px);
  background:var(--paper);
  border-right:1px solid var(--line);
}
.mobile-drawer .offcanvas-header{
  padding:18px 20px;
  border-bottom:1px solid var(--line);
  align-items:center;
}
.mobile-drawer .offcanvas-body{padding:8px 0 24px;}
.m-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:56px;
  padding:0 20px;
  font-size:18px;
  color:var(--ink);
  border-bottom:1px solid var(--line);
  border-left:3px solid transparent;
  transition:color 180ms var(--ease),border-color 180ms var(--ease),background 180ms var(--ease);
}
.m-link:hover{background:var(--surface-2);color:var(--brand);}
.m-link.is-active{border-left-color:var(--accent);color:var(--brand);font-weight:500;}
.drawer-foot{padding:20px;border-top:1px solid var(--line);}
.drawer-foot .hint{font-size:13px;color:var(--ink-3);margin-top:12px;line-height:1.7;}
.btn-close{
  background:transparent url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='%231B1A16' d='M1.3 1.3a1 1 0 0 1 1.4 0L8 6.6l5.3-5.3a1 1 0 1 1 1.4 1.4L9.4 8l5.3 5.3a1 1 0 0 1-1.4 1.4L8 9.4l-5.3 5.3a1 1 0 0 1-1.4-1.4L6.6 8 1.3 2.7a1 1 0 0 1 0-1.4z'/%3E%3C/svg%3E") center/14px no-repeat;
  width:32px;height:32px;opacity:.65;border-radius:var(--r-sm);
}
.btn-close:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:2px;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{max-width:1140px;}
  .support-wrap{grid-template-columns:220px minmax(0,1fr);gap:40px;}
}
@media (max-width:991px){
  .site-header{height:64px;}
  .page-hero{padding:118px 0 60px;}
  .page-title{font-size:34px;}
  .section{padding:72px 0;}
  .section-sm{padding:56px 0;}
  .support-wrap{grid-template-columns:minmax(0,1fr);gap:32px;}
  .toc{
    position:static;
    border-left:0;
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    padding:0;
    margin:0 -16px;
  }
  .toc-title{padding:16px 16px 8px;margin:0;}
  .toc-list{
    display:flex;
    overflow-x:auto;
    gap:8px;
    padding:0 16px 16px;
    scrollbar-width:thin;
  }
  .toc-list li{flex:0 0 auto;}
  .toc-list li a{
    border-left:0;
    border:1px solid var(--line-strong);
    border-radius:var(--r-pill);
    padding:8px 16px;
    font-size:14px;
    white-space:nowrap;
    margin-left:0;
  }
  .toc-list li a.is-active{
    background:var(--brand);
    border-color:var(--brand);
    color:var(--paper);
  }
  .toc-list li a.is-active .num{color:rgba(246,242,234,.7);}
  .toc-foot{display:none;}
  .media-block{grid-template-columns:minmax(0,1fr);gap:32px;}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:36px;gap:24px;}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat{border-right:1px solid var(--line);}
  .stat:nth-child(2n){border-right:0;}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .channel-row{grid-template-columns:44px minmax(0,1fr);gap:8px 16px;padding:22px 4px;}
  .channel-row p{grid-column:2;}
  .channel-row .c-act{grid-column:2;justify-self:start;margin-top:4px;}
}
@media (max-width:767px){
  .page-hero{padding:104px 0 52px;}
  .page-title{font-size:28px;}
  .page-hero .h1-brand{font-size:16px;letter-spacing:.14em;}
  .page-lead{font-size:15px;margin-top:14px;}
  .hero-meta{gap:10px 20px;font-size:13px;}
  .sec-title{font-size:24px;}
  .section{padding:56px 0;}
  .section-sm{padding:48px 0;}
  .flow{grid-template-columns:minmax(0,1fr);gap:0;padding-top:0;padding-left:22px;}
  .flow::before{top:6px;bottom:6px;left:4px;right:auto;width:1px;height:auto;}
  .flow-item{padding:0 0 28px 0;}
  .flow-item::before{top:6px;left:-22px;}
  .channel-row h3{font-size:17px;}
  .accordion-button{font-size:16px;padding-right:38px;}
  .accordion-button::after{top:24px;right:0;}
  .accordion-body{padding-right:0;}
  .group-head{flex-wrap:wrap;gap:8px 12px;}
  .group-head .g-note{margin-left:0;width:100%;}
  .cta-band{padding:28px 20px;}
  .cta-band h2{font-size:22px;}
  .sub-form .btn{width:100%;}
  .stats{grid-template-columns:1fr 1fr;}
  .stat{padding:24px 18px;}
  .stat .s-num{font-size:26px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .site-footer{padding-top:56px;margin-top:64px;}
  .copyright{margin-top:36px;}
  .to-top{right:16px;bottom:16px;width:44px;height:44px;}
  .btn{width:100%;}
  .site-header .btn{width:auto;}
  .btn-text{width:auto;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category5 */
:root{
  --ink:#1B1A16;--ink-2:#5F5A50;--ink-3:#8C867A;
  --paper:#F6F2EA;--surface:#FFFFFF;--surface-2:#EFEAE0;
  --line:#E4DED2;--line-strong:#D2CABB;
  --brand:#1F3B34;--brand-deep:#162C27;--brand-soft:#E7EDEA;
  --accent:#C0562A;--accent-soft:#F3E3D8;
  --live:#CF4A2E;--replay:#3F5F57;
  --r-sm:8px;--r-md:12px;--r-lg:16px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(27,26,22,.05),0 6px 20px -12px rgba(27,26,22,.14);
  --sh-2:0 2px 4px rgba(27,26,22,.06),0 14px 32px -14px rgba(27,26,22,.22);
  --ease:180ms cubic-bezier(.2,.7,.3,1);
  --ff-serif:'Noto Serif SC','Songti SC',serif;
  --ff-sans:'Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:var(--ff-sans);font-size:17px;line-height:1.85;
  font-weight:400;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease)}
a:hover{color:var(--ink)}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{font-family:var(--ff-serif);font-weight:600;letter-spacing:.01em;margin:0;line-height:1.35}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:2px}

.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{font-size:30px;margin-bottom:12px}
.section-head p{color:var(--ink-2);font-size:16px}
.eyebrow{display:block;font-size:12px;letter-spacing:.16em;color:var(--ink-3);margin-bottom:14px;font-family:var(--ff-sans);font-weight:500}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:1040;background:rgba(246,242,234,.95);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow var(--ease)}
.site-header.is-scrolled{box-shadow:0 10px 26px -22px rgba(27,26,22,.65)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px}
.brand{display:inline-flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;flex-shrink:0}
.brand-mark{font-family:var(--ff-serif);font-size:22px;font-weight:700;letter-spacing:-.02em;color:var(--ink);line-height:1}
.brand-divider{width:1px;height:18px;background:var(--line-strong);display:inline-block}
.brand-cn{font-size:14px;letter-spacing:.04em;color:var(--ink-2);font-weight:500;white-space:nowrap}
.nav-links{align-items:center;gap:30px;margin:0}
.nav-links .nav-link{position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:500;color:var(--ink-2);letter-spacing:.01em;transition:color var(--ease);white-space:nowrap}
.nav-links .nav-link:hover{color:var(--ink)}
.nav-links .nav-link.is-active{color:var(--ink)}
.nav-links .nav-link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--accent)}
.header-tools{display:flex;align-items:center;gap:12px}
.icon-btn{width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--r-sm);background:transparent;color:var(--ink-2);transition:all var(--ease);cursor:pointer}
.icon-btn:hover{border-color:var(--line-strong);color:var(--ink);background:var(--surface)}
.icon-btn svg{width:18px;height:18px;stroke-width:1.25}
.hamburger{width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--r-sm);background:transparent;color:var(--ink);cursor:pointer}
.hamburger svg{width:20px;height:20px;stroke-width:1.4}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-sm);font-size:15px;font-weight:500;letter-spacing:.02em;border:1px solid transparent;cursor:pointer;transition:background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease),transform var(--ease);line-height:1}
.btn:active{transform:translateY(1px)}
.btn-brand{background:var(--brand);color:var(--paper);border-color:var(--brand)}
.btn-brand:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;box-shadow:var(--sh-1)}
.btn-accent{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-accent:hover{background:#A94A24;border-color:#A94A24;color:#fff}
.btn-line{background:transparent;border-color:var(--line-strong);color:var(--ink)}
.btn-line:hover{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-paper{background:var(--paper);color:var(--brand);border-color:var(--paper)}
.btn-paper:hover{background:#fff;color:var(--brand-deep);border-color:#fff}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-text{display:inline-flex;align-items:center;gap:8px;height:auto;padding:0;border:0;background:none;color:var(--brand);font-size:15px;font-weight:500}
.btn-text .arrow{transition:transform var(--ease)}
.btn-text:hover{color:var(--brand-deep);text-decoration:underline;text-underline-offset:4px}
.btn-text:hover .arrow{transform:translateX(3px)}

/* ---------- page hero ---------- */
.page-hero{padding:44px 0 56px;border-bottom:1px solid var(--line)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:20px}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--line-strong)}
.crumb .current{color:var(--ink)}
.page-hero h1{font-size:40px;line-height:1.32;margin-bottom:16px;max-width:16em}
.lede{max-width:720px;font-size:17px;line-height:1.85;color:var(--ink-2)}

/* ---------- about ---------- */
.about-copy h2{font-size:30px;margin-bottom:20px;max-width:14em}
.about-copy p{color:var(--ink-2);max-width:640px}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);margin-top:44px}
.stat{padding:24px 20px 0 0}
.stat+.stat{border-left:1px solid var(--line);padding-left:24px}
.stat-num{font-family:var(--ff-serif);font-size:30px;font-variant-numeric:tabular-nums;color:var(--brand);line-height:1.15}
.stat-label{font-size:13px;color:var(--ink-3);margin-top:8px;line-height:1.6}
.media-card{border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--surface);box-shadow:var(--sh-1);transition:box-shadow var(--ease),transform var(--ease)}
.media-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.media-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--surface-2);border-bottom:1px solid var(--line)}
.media-card-body{padding:20px 24px 24px}
.mini-list li{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line);font-size:14px;line-height:1.7;color:var(--ink-2)}
.mini-list li:last-child{border-bottom:0;padding-bottom:0}
.mini-list .k{color:var(--ink);font-weight:500;min-width:68px;flex-shrink:0}
.badge-mk{display:inline-flex;align-items:center;padding:4px 10px;border-radius:var(--r-pill);font-size:12px;font-weight:500;background:var(--brand-soft);color:var(--replay);letter-spacing:.02em}

/* ---------- promise rows ---------- */
.promise-list{border-top:1px solid var(--line);margin-top:8px}
.promise-row{display:grid;grid-template-columns:64px 1fr 120px 24px;gap:24px;align-items:center;padding:26px 8px;border-bottom:1px solid var(--line);transition:background var(--ease)}
.promise-row:hover{background:var(--surface-2)}
.promise-no{font-family:var(--ff-serif);font-size:17px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.promise-row h3{font-size:19px;margin-bottom:6px}
.promise-row p{font-size:15px;color:var(--ink-2);line-height:1.7}
.promise-meta{font-size:13px;color:var(--ink-3);text-align:right}
.promise-row .arrow{color:var(--ink-3);transition:transform var(--ease),color var(--ease)}
.promise-row:hover .arrow{color:var(--accent);transform:translateX(3px)}

/* ---------- contact ---------- */
.contact-wrap{border-top:1px solid var(--line);padding-top:64px}
.contact-info h2{font-size:28px;margin-bottom:16px}
.contact-info>p{color:var(--ink-2);font-size:16px;max-width:520px}
.info-list{margin-top:32px;border-top:1px solid var(--line)}
.info-list li{display:flex;justify-content:space-between;gap:24px;align-items:baseline;padding:18px 0;border-bottom:1px solid var(--line);font-size:15px}
.info-list .k{color:var(--ink-3);flex-shrink:0;font-size:14px}
.info-list .v{color:var(--ink);text-align:right;font-variant-numeric:tabular-nums}
.info-list a.v:hover{color:var(--accent)}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh-1)}
.form-card h3{font-size:21px;margin-bottom:8px}
.form-card .form-note{font-size:14px;color:var(--ink-3);margin-bottom:24px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;color:var(--ink-2);margin-bottom:8px;font-weight:500}
.form-control,.form-select{
  width:100%;height:48px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;padding:0 14px;font-size:15px;color:var(--ink);
  font-family:var(--ff-sans);transition:border-color var(--ease),box-shadow var(--ease);
}
.form-select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%238C867A' stroke-width='1.6'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:40px}
textarea.form-control{height:auto;min-height:118px;padding:12px 14px;line-height:1.7;resize:vertical}
.form-control::placeholder{color:var(--ink-3)}
.form-control:focus,.form-select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,59,52,.12)}
.form-check{display:flex;gap:10px;align-items:flex-start;margin:4px 0 20px}
.form-check-input{width:18px;height:18px;margin-top:5px;border:1px solid var(--line-strong);border-radius:4px;flex-shrink:0;cursor:pointer}
.form-check-input:checked{background-color:var(--brand);border-color:var(--brand)}
.form-check-input:focus{box-shadow:0 0 0 3px rgba(31,59,52,.12);border-color:var(--brand)}
.form-check-label{font-size:13px;color:var(--ink-3);line-height:1.7}
.form-success{display:none;margin-top:20px;padding:16px 18px;border:1px solid var(--replay);border-radius:var(--r-sm);background:var(--brand-soft);color:var(--brand);font-size:14px;line-height:1.7}
.form-success.is-on{display:block}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.faq-intro h2{font-size:30px;margin-bottom:14px}
.faq-intro p{color:var(--ink-2);font-size:16px;max-width:340px}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.accordion-item:first-of-type{border-top:1px solid var(--line)}
.accordion-button{background:transparent;color:var(--ink);font-family:var(--ff-sans);font-size:17px;font-weight:500;line-height:1.6;padding:20px 0;box-shadow:none;display:flex;justify-content:space-between;gap:24px;align-items:center}
.accordion-button:not(.collapsed){color:var(--brand);background:transparent;box-shadow:none}
.accordion-button:focus{box-shadow:none;border-color:transparent;outline:2px solid var(--brand);outline-offset:2px}
.accordion-button::after{
  content:"＋";flex-shrink:0;width:auto;height:auto;background-image:none;
  font-size:18px;font-weight:400;color:var(--ink-3);transform:none;
  display:inline-flex;align-items:center;justify-content:center;line-height:1;
}
.accordion-button:not(.collapsed)::after{content:"－";color:var(--brand);transform:none}
.accordion-body{padding:0 24px 22px 0;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ---------- cta band ---------- */
.cta-band{background:var(--brand);border-radius:var(--r-lg);padding:48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{color:var(--paper);font-size:28px;line-height:1.4;max-width:14em}
.cta-band p{color:rgba(246,242,234,.72);font-size:15px;margin-top:10px;max-width:36em}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-actions .btn-brand{background:var(--paper);color:var(--brand-deep);border-color:var(--paper)}
.cta-actions .btn-brand:hover{background:#fff;color:var(--brand-deep);border-color:#fff}
.cta-actions .btn-line{border-color:rgba(246,242,234,.4);color:var(--paper)}
.cta-actions .btn-line:hover{border-color:var(--paper);color:#fff;background:rgba(255,255,255,.06)}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:rgba(246,242,234,.72);padding:64px 0 24px;margin-top:96px}
.site-footer .brand-mark{color:#fff}
.site-footer .brand-divider{background:rgba(255,255,255,.24)}
.site-footer .brand-cn{color:rgba(246,242,234,.8)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:40px}
.f-brand p{font-size:14px;line-height:1.85;color:rgba(246,242,234,.62);margin-top:16px;max-width:30em}
.f-title{font-size:13px;letter-spacing:.12em;color:rgba(246,242,234,.95);margin-bottom:16px}
.f-list li{margin-bottom:10px}
.f-list a{font-size:14px;color:rgba(246,242,234,.66)}
.f-list a:hover{color:#fff}
.f-info li{display:flex;justify-content:space-between;gap:16px;padding:9px 0;border-bottom:1px dashed rgba(255,255,255,.12);font-size:14px}
.f-info .k{color:rgba(246,242,234,.5)}
.f-info .v{color:rgba(246,242,234,.9);text-align:right;font-variant-numeric:tabular-nums}
.copyright{border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding-top:20px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:rgba(246,242,234,.55)}

/* ---------- back to top ---------- */
.back-top{position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--surface);border:1px solid var(--line-strong);color:var(--ink);box-shadow:var(--sh-1);opacity:0;pointer-events:none;transition:all var(--ease);z-index:1035;cursor:pointer}
.back-top.is-visible{opacity:1;pointer-events:auto}
.back-top:hover{background:var(--brand);border-color:var(--brand);color:#fff}
.back-top svg{width:18px;height:18px;stroke-width:1.5}

/* ---------- drawer ---------- */
.site-drawer{--bs-offcanvas-width:min(88vw,360px);background:var(--paper);border-right:1px solid var(--line)}
.site-drawer .offcanvas-header{padding:20px 24px;border-bottom:1px solid var(--line)}
.site-drawer .offcanvas-body{padding:8px 24px 32px;display:flex;flex-direction:column}
.drawer-link{display:flex;align-items:center;font-size:18px;line-height:1;padding:20px 0;color:var(--ink-2);border-bottom:1px solid var(--line);transition:color var(--ease),padding-left var(--ease)}
.drawer-link:hover{color:var(--ink)}
.drawer-link.is-active{color:var(--brand);font-weight:500;border-left:3px solid var(--accent);padding-left:12px}
.drawer-foot{margin-top:auto;padding-top:28px}
.drawer-foot .btn{width:100%}
.drawer-foot p{font-size:13px;color:var(--ink-3);margin-top:14px}
.btn-close{filter:grayscale(1) opacity(.55)}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .nav-links{gap:20px}
  .nav-links .nav-link{font-size:14px}
  .faq-grid{gap:40px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .f-brand{grid-column:1/-1}
}
@media (max-width:991.98px){
  body{font-size:16px}
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .header-inner{height:64px}
  .page-hero{padding:32px 0 44px}
  .page-hero h1{font-size:30px}
  .section-head h2,.about-copy h2,.faq-intro h2,.cta-band h2{font-size:24px}
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .contact-wrap{padding-top:48px}
  .cta-band{padding:32px}
  .site-footer{margin-top:72px}
  .promise-row{grid-template-columns:48px 1fr 20px;gap:16px}
  .promise-meta{display:none}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .page-hero h1{font-size:26px}
  .stat-row{grid-template-columns:1fr}
  .stat{padding:20px 0 0}
  .stat+.stat{border-left:0;border-top:1px solid var(--line);padding-left:0}
  .form-card{padding:24px 20px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .copyright{flex-direction:column;gap:8px}
  .cta-band{padding:28px 22px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .info-list li{flex-direction:column;gap:6px;align-items:flex-start}
  .info-list .v{text-align:left}
  .promise-row{grid-template-columns:1fr;gap:8px;padding:22px 4px}
  .promise-row .arrow{display:none}
  .promise-no{font-size:14px}
  .back-top{right:16px;bottom:16px;width:44px;height:44px}
  .btn{width:100%}
  .btn-sm{width:auto}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}