/* roulang page: index */
:root{
  --brand:#17564E;
  --brand-dark:#102A27;
  --brand-light:#DCEBE6;
  --amber:#D9822B;
  --amber-dark:#B96A1B;
  --amber-light:#FBEBDA;
  --alert:#C2402B;
  --bg:#F6F3EC;
  --card:#FFFFFF;
  --card-alt:#FDFBF6;
  --line:#E3DCCF;
  --text:#17171A;
  --muted:#4A4A52;
  --dim:#8B8B93;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --sh:0 1px 2px rgba(23,23,26,.04),0 8px 24px -12px rgba(23,23,26,.12);
  --sh-hover:0 2px 6px rgba(23,23,26,.06),0 18px 36px -16px rgba(23,23,26,.2);
  --sans:'Noto Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,'Segoe UI',sans-serif;
  --serif:'Noto Serif SC','Songti SC','SimSun',Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .16s ease}
a:hover{color:var(--amber)}
button,input{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,p,ol,ul{margin:0}
ol,ul{padding:0;list-style:none}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-head{margin-bottom:36px;max-width:720px}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--amber);margin-bottom:10px}
.section-title{font-size:30px;line-height:1.35;font-weight:700;color:var(--text);font-family:var(--serif)}
.section-desc{font-size:15px;line-height:1.75;color:var(--muted);margin-top:12px}
.row-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;max-width:none}
.text-link{font-size:15px;font-weight:600;color:var(--brand);border-bottom:1px solid transparent;transition:all .16s ease}
.text-link:hover{color:var(--amber);border-bottom-color:var(--amber)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;letter-spacing:.02em;cursor:pointer;
  border:1px solid transparent;transition:transform .16s ease,background .16s ease,box-shadow .16s ease,color .16s ease,border-color .16s ease;
}
.btn-primary{background:var(--amber);color:#fff;box-shadow:var(--sh)}
.btn-primary:hover{background:var(--amber-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-hover)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand);border-color:var(--brand)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-sm);background:var(--brand-light);color:var(--brand);font-size:12px;font-weight:600;letter-spacing:.02em}
.badge-amber{background:var(--amber-light);color:var(--amber-dark)}

/* 左侧竖向导航 */
.side-nav{display:none}
@media (min-width:1024px){
  .side-nav{
    display:flex;flex-direction:column;
    position:fixed;top:0;left:0;bottom:0;width:240px;
    background:var(--brand-dark);color:#fff;z-index:50;
    padding:26px 0 20px;overflow-y:auto;
  }
  .main-wrap{margin-left:240px}
}
@media (min-width:1280px){
  .side-nav{width:260px}
  .main-wrap{margin-left:260px}
}
.nav-brand{display:flex;align-items:center;gap:10px;padding:0 24px 20px;border-bottom:1px solid rgba(255,255,255,.14)}
.nav-brand .brand-name{font-family:var(--serif);font-size:19px;font-weight:700;letter-spacing:.02em;color:#fff}
.nav-mark{width:30px;height:30px;flex:0 0 30px}
.nav-list{margin-top:18px}
.nav-link{
  display:flex;align-items:center;gap:12px;height:44px;padding:0 24px;
  font-size:15px;color:rgba(255,255,255,.78);
  border-left:3px solid transparent;transition:background .14s ease,color .14s ease;
}
.nav-link svg{width:18px;height:18px;flex:0 0 18px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.nav-link:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-link.active{background:rgba(255,255,255,.06);color:#fff;border-left-color:var(--amber);font-weight:600}
.nav-side-block{margin:22px 24px 0;padding-top:20px;border-top:1px solid rgba(255,255,255,.14)}
.nav-mini{
  display:flex;align-items:center;justify-content:center;gap:8px;height:40px;border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.4);color:#fff;font-size:14px;font-weight:600;
}
.nav-mini:hover{background:rgba(255,255,255,.1);color:#fff}
.nav-foot{margin-top:auto;padding:22px 24px 0;font-size:12px;line-height:1.8;color:rgba(255,255,255,.5)}
.nav-foot a{color:rgba(255,255,255,.66)}
.nav-foot a:hover{color:#fff}

/* 移动顶部栏与抽屉 */
.topbar{
  position:sticky;top:0;z-index:60;height:56px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;background:#fff;border-bottom:1px solid var(--line);
}
@media (min-width:1024px){.topbar{display:none}}
.topbar .brand-name{font-family:var(--serif);font-size:17px;font-weight:700;color:var(--brand-dark)}
.menu-btn{width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:transparent;border:1px solid var(--line);border-radius:var(--r-sm);cursor:pointer}
.menu-btn svg{width:20px;height:20px;stroke:var(--brand-dark);stroke-width:1.8;fill:none;stroke-linecap:round}
.drawer{position:fixed;inset:0;z-index:80;background:var(--brand-dark);color:#fff;display:none;flex-direction:column;padding:18px 24px 28px}
.drawer.open{display:flex}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.14)}
.drawer-head .brand-name{font-family:var(--serif);font-size:18px;font-weight:700;color:#fff}
.drawer-close{width:44px;height:44px;background:transparent;border:0;color:#fff;font-size:24px;line-height:1;cursor:pointer}
.drawer-nav{margin-top:14px}
.drawer-nav a{display:flex;align-items:center;height:52px;font-size:17px;color:rgba(255,255,255,.82);border-bottom:1px solid rgba(255,255,255,.08)}
.drawer-nav a.active{color:#fff;font-weight:600}
.drawer-cta{margin-top:26px}

/* Hero */
.hero{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  background-image:linear-gradient(rgba(16,42,39,.8),rgba(16,42,39,.7)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  color:#fff;padding:56px 48px;
}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;min-height:360px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:var(--r-sm);background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);font-size:13px;font-weight:600;letter-spacing:.04em}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--amber)}
.hero-title{font-family:var(--serif);font-size:44px;line-height:1.25;font-weight:700;margin-top:20px;letter-spacing:.01em}
.hero-sub{font-size:17px;line-height:1.8;color:rgba(255,255,255,.86);margin-top:18px;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-meta{margin-top:24px;font-size:13px;letter-spacing:.02em;color:rgba(255,255,255,.66);border-top:1px solid rgba(255,255,255,.18);padding-top:16px}
.cover-frame{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid rgba(217,130,43,.6);background:#0b1f1c;box-shadow:0 20px 40px -24px rgba(0,0,0,.6)}
.cover-frame img{width:100%;aspect-ratio:16/9;object-fit:cover}
.live-badge{position:absolute;left:12px;top:12px;display:inline-flex;align-items:center;gap:7px;padding:4px 10px;border-radius:var(--r-sm);background:rgba(16,42,39,.72);color:#fff;font-size:12px;font-weight:600;letter-spacing:.04em}
.live-dot{width:8px;height:8px;border-radius:50%;background:var(--alert);animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.78)}}
@media (max-width:1023px){
  .hero{padding:36px 24px}
  .hero-grid{grid-template-columns:1fr;gap:28px;min-height:0}
  .hero-title{font-size:32px}
  .hero-sub{font-size:16px}
}
@media (max-width:520px){
  .hero-title{font-size:28px}
}

/* 倒计时 */
.countdown{
  position:relative;z-index:2;margin-top:-44px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh);padding:22px 26px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cd-head{display:flex;flex-direction:column;gap:4px}
.cd-kicker{font-size:13px;font-weight:600;color:var(--amber);letter-spacing:.06em}
.cd-when{font-size:15px;color:var(--muted)}
.cd-grid{display:none;align-items:center;gap:14px}
.countdown.is-ready .cd-grid{display:flex}
.countdown.is-ready .cd-fallback{display:none}
.cd-cell{display:flex;flex-direction:column;align-items:center;min-width:64px}
.cd-num{font-family:var(--serif);font-size:36px;line-height:1.1;font-weight:700;color:var(--brand)}
.cd-label{font-size:12px;color:var(--dim);letter-spacing:.06em}
.cd-sep{width:1px;height:34px;background:var(--line)}
.cd-fallback{font-size:16px;font-weight:600;color:var(--brand)}
@media (max-width:768px){
  .countdown{margin-top:20px;padding:18px 20px;justify-content:center;text-align:center}
  .cd-num{font-size:30px}
  .cd-cell{min-width:54px}
}

/* 时间轴 */
.timeline{display:grid;grid-template-columns:1fr 1fr;gap:22px 36px}
.tl-item{position:relative;padding-left:62px;min-height:56px}
.tl-item::before{content:"";position:absolute;left:23px;top:0;bottom:-22px;width:2px;background:var(--line)}
.tl-item:last-child::before{display:none}
.tl-num{
  position:absolute;left:0;top:0;width:48px;height:48px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--card);border:1px solid var(--amber);color:var(--amber);
  font-family:var(--serif);font-size:15px;font-weight:700;z-index:1;
}
.tl-item h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--text)}
.tl-item p{font-size:15px;line-height:1.75;color:var(--muted);margin-top:6px}
@media (max-width:1023px){
  .timeline{grid-template-columns:1fr;gap:22px}
  .tl-item::before{bottom:-22px}
}

/* 订阅 */
.subscribe-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh);padding:34px 36px}
.sub-copy h2{font-size:26px;font-family:var(--serif);font-weight:700;line-height:1.35}
.sub-copy p{font-size:15px;color:var(--muted);margin-top:10px;max-width:640px}
.sub-form{display:flex;gap:12px;margin-top:22px;max-width:720px}
.sub-input{
  flex:1;height:48px;padding:0 16px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:var(--card-alt);color:var(--text);
  transition:border-color .16s ease,background .16s ease;
}
.sub-input::placeholder{color:var(--dim)}
.sub-input:focus{outline:none;border-color:var(--brand);background:#fff}
.sub-input:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.sub-note{font-size:12px;color:var(--dim);margin-top:14px;letter-spacing:.02em}
.sub-success{
  display:flex;align-items:center;gap:10px;margin-top:18px;
  background:var(--brand-light);color:var(--brand);border-radius:var(--r-sm);
  padding:12px 16px;font-size:15px;font-weight:600;
}
.sub-success svg{width:18px;height:18px;stroke:var(--brand);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
@media (max-width:768px){
  .subscribe-card{padding:24px 20px}
  .sub-form{flex-direction:column}
  .sub-form .btn{width:100%}
}

/* 数据条 */
.stats-band{background:var(--brand-dark);color:#fff;margin-top:0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:44px 24px}
.stat{display:flex;flex-direction:column;gap:6px;border-left:1px solid rgba(255,255,255,.16);padding-left:20px}
.stat strong{font-family:var(--serif);font-size:34px;line-height:1.15;font-weight:700;color:#fff}
.stat span{font-size:14px;color:rgba(255,255,255,.68);letter-spacing:.02em}
@media (max-width:900px){
  .stats-grid{grid-template-columns:1fr 1fr;gap:26px 20px}
  .stat strong{font-size:28px}
}
@media (max-width:520px){
  .stats-grid{grid-template-columns:1fr}
  .stat{border-left:0;border-top:1px solid rgba(255,255,255,.16);padding-left:0;padding-top:14px}
}

/* 卡片网格 */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.media-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease}
.media-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:var(--brand-light);background:var(--card-alt)}
.media-card:hover .media-title{color:var(--brand)}
.media-thumb{position:relative;overflow:hidden;background:#e8e3d8}
.media-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .2s ease}
.media-card:hover .media-thumb img{transform:scale(1.02)}
.duration{position:absolute;right:10px;bottom:10px;background:rgba(16,42,39,.78);color:#fff;font-size:12px;padding:2px 8px;border-radius:6px;letter-spacing:.02em}
.media-body{padding:20px}
.media-title{font-size:17px;font-weight:600;line-height:1.55;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .16s ease}
.media-meta{display:flex;align-items:center;gap:12px;margin-top:12px;font-size:13px;color:var(--dim);letter-spacing:.02em}
@media (max-width:1023px){.card-grid{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.card-grid{grid-template-columns:1fr}}

/* 最新信息列表 */
.news-list{border-top:1px solid var(--line)}
.news-row{
  display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;
  padding:20px 0;border-bottom:1px dashed var(--line);min-height:64px;
}
.news-main{min-width:0}
.news-title{font-size:17px;font-weight:600;line-height:1.6}
.news-title a{color:var(--text)}
.news-title a:hover{color:var(--brand)}
.news-sum{font-size:14px;color:var(--muted);margin-top:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.news-time{font-size:13px;color:var(--dim);letter-spacing:.02em;white-space:nowrap}
.news-tag{background:var(--brand-light);color:var(--brand);font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--r-sm);white-space:nowrap}
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:12px;text-align:center;
  background:var(--card-alt);border:1px dashed var(--line);border-radius:var(--r-md);
  padding:44px 24px;margin:22px 0;
}
.empty-state svg{width:34px;height:34px;stroke:var(--dim);fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.empty-state p{color:var(--muted);font-size:15px}
.list-more{margin-top:26px;text-align:center}
@media (max-width:860px){
  .news-row{grid-template-columns:1fr;gap:10px;align-items:flex-start}
  .news-tag{justify-self:start}
  .news-time{text-align:left}
  .news-sum{white-space:normal}
}

/* 栏目入口 */
.topic-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:24px;display:flex;flex-direction:column;gap:12px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.topic-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:var(--brand-light)}
.topic-icon{width:44px;height:44px;border-radius:var(--r-sm);background:var(--amber-light);display:flex;align-items:center;justify-content:center}
.topic-icon svg{width:22px;height:22px;stroke:var(--amber-dark);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.topic-card h3{font-size:19px;font-weight:600;color:var(--text);font-family:var(--serif)}
.topic-card p{font-size:15px;line-height:1.75;color:var(--muted)}
.topic-card .text-link{margin-top:4px}

/* FAQ */
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);margin-bottom:8px;overflow:hidden;transition:border-color .16s ease}
.faq-item[open]{border-color:var(--brand-light)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;font-size:16px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--amber);font-size:20px;font-weight:600;line-height:1}
.faq-item[open] summary::after{content:"−"}
.faq-body{background:var(--brand-light);padding:16px 22px 20px;font-size:15px;line-height:1.85;color:var(--muted)}

/* CTA */
.cta-band{
  background-color:var(--brand-dark);
  background-image:linear-gradient(rgba(16,42,39,.9),rgba(16,42,39,.9)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  border-radius:var(--r-lg);padding:42px 44px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:26px;
}
.cta-band h2{font-size:26px;font-family:var(--serif);font-weight:700;line-height:1.35}
.cta-band p{font-size:15px;color:rgba(255,255,255,.74);margin-top:10px;max-width:620px}
@media (max-width:768px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 22px;text-align:left}
  .cta-band .btn{width:100%}
}

/* 页脚 */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.72);margin-top:88px;padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand-name{font-family:var(--serif);font-size:19px;font-weight:700;color:#fff}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);margin-top:16px;max-width:320px}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-col a:hover{color:#fff}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:#fff}
@media (max-width:900px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:560px){
  .footer-grid{grid-template-columns:1fr}
  .section{padding:56px 0}
  .container{padding:0 16px}
}

/* roulang page: article */
:root{
  --brand:#17564E;
  --brand-dark:#102A27;
  --brand-light:#DCEBE6;
  --amber:#D9822B;
  --amber-hover:#B96A1B;
  --amber-light:#FBEBDA;
  --alert:#C2402B;
  --bg:#F6F3EC;
  --card:#FFFFFF;
  --card-alt:#FDFBF6;
  --line:#E3DCCF;
  --text:#17171A;
  --text-2:#4A4A52;
  --text-3:#8B8B93;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --sd-card:0 1px 2px rgba(23,23,26,.04), 0 8px 24px -12px rgba(23,23,26,.12);
  --sd-hover:0 2px 6px rgba(23,23,26,.06), 0 18px 34px -18px rgba(23,23,26,.24);
  --font-sans:'Noto Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  --font-serif:'Noto Serif SC','Songti SC','SimSun',Georgia,serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--brand-dark);color:#fff;padding:10px 16px;z-index:99}
.skip-link:focus{left:12px;top:12px;border-radius:var(--r-sm)}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:240px;
  background:var(--brand-dark);color:#fff;
  display:none;flex-direction:column;
  padding:24px 16px;z-index:50;
  border-right:1px solid rgba(255,255,255,.06);
}
.side-brand{display:flex;align-items:center;gap:10px;padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.14)}
.brand-mark{width:30px;height:30px;flex:none}
.nav-mark{width:28px;height:28px;flex:none}
.brand-name{font-family:var(--font-serif);font-size:20px;font-weight:700;letter-spacing:.02em;color:#fff}
.nav-list{display:flex;flex-direction:column;gap:2px;margin-top:22px}
.nav-link{
  position:relative;display:flex;align-items:center;gap:10px;
  min-height:44px;padding:0 12px;border-radius:var(--r-sm);
  font-size:15px;color:rgba(255,255,255,.78);
  transition:background .1s ease,color .1s ease;
}
.nav-link svg{width:18px;height:18px;flex:none;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.nav-link:hover{background:rgba(255,255,255,.07);color:#fff}
.nav-link.active{background:rgba(255,255,255,.06);color:#fff;font-weight:600}
.nav-link.active::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:2px;background:var(--amber)}
.side-sub{
  display:flex;align-items:center;justify-content:center;gap:8px;
  margin-top:24px;min-height:42px;border:1px solid rgba(255,255,255,.3);
  border-radius:var(--r-sm);font-size:14px;color:#fff;font-weight:600;
  transition:background .15s ease,border-color .15s ease;
}
.side-sub:hover{background:rgba(217,130,43,.18);border-color:var(--amber)}
.side-foot{
  margin-top:auto;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  font-size:12px;line-height:1.8;color:rgba(255,255,255,.55);
}
.side-foot p{margin:0}

/* ---------- 移动端顶栏与抽屉 ---------- */
.mobile-bar{
  position:sticky;top:0;z-index:40;
  display:flex;align-items:center;justify-content:space-between;
  height:56px;padding:0 16px;background:#fff;border-bottom:1px solid var(--line);
}
.mobile-brand{display:flex;align-items:center;gap:8px}
.mobile-brand .brand-name{color:var(--brand-dark);font-size:18px}
.mobile-brand .nav-mark{width:24px;height:24px;stroke:var(--brand-dark)}
.menu-btn{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:10px;color:var(--brand-dark);
  cursor:pointer;transition:background .15s ease,border-color .15s ease;
}
.menu-btn:hover{background:var(--brand-light);border-color:var(--brand-light)}
.menu-btn svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.drawer{
  position:fixed;inset:0;z-index:60;background:var(--brand-dark);
  display:flex;flex-direction:column;padding:20px 18px;
  transform:translateX(100%);transition:transform .26s ease;
  overflow-y:auto;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid rgba(255,255,255,.14)}
.drawer-close{width:44px;height:44px;display:flex;align-items:center;justify-content:center;background:transparent;border:1px solid rgba(255,255,255,.28);border-radius:10px;color:#fff;cursor:pointer}
.drawer-close svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.drawer .nav-list{margin-top:16px}
.drawer .nav-link{font-size:17px;min-height:52px}
.drawer-foot{margin-top:auto;padding-top:20px;font-size:12px;color:rgba(255,255,255,.55);line-height:1.8}

/* ---------- 页面骨架 ---------- */
.page-shell{display:block;min-height:100vh}
@media (min-width:1024px){
  .side-nav{display:flex}
  .mobile-bar{display:none}
  .drawer{display:none}
  .page-shell{padding-left:240px}
}
@media (min-width:1280px){
  .side-nav{width:260px}
  .page-shell{padding-left:260px}
}

/* ---------- 文章页主体 ---------- */
.article-main{padding:28px 0 0}
@media (min-width:1024px){.article-main{padding-top:44px}}
.article-col{max-width:760px;margin:0 auto}
.breadcrumb{font-size:13px;letter-spacing:.02em;color:var(--text-3)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.breadcrumb li{display:flex;align-items:center;gap:6px}
.breadcrumb li+li::before{content:"/";color:var(--line)}
.breadcrumb a{color:var(--brand);transition:color .15s ease}
.breadcrumb a:hover{color:var(--amber);text-decoration:underline;text-underline-offset:3px}
.breadcrumb [aria-current="page"]{color:var(--text-3);max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-block;vertical-align:bottom}
.cat-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;background:var(--brand-light);color:var(--brand);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.article-head{margin-top:20px}
.article-title{
  margin-top:14px;font-family:var(--font-serif);font-weight:600;
  font-size:34px;line-height:1.3;letter-spacing:.01em;color:var(--brand-dark);
}
@media (min-width:768px){.article-title{font-size:42px}}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:18px;padding-bottom:22px;border-bottom:1px solid var(--line);
  font-size:13px;letter-spacing:.02em;color:var(--text-3);
}
.article-meta .dot{color:var(--line)}
.article-cover{margin-top:26px}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-md);border:1px solid var(--line)}

/* ---------- 正文排版 ---------- */
.article-body{max-width:760px;margin-top:32px;font-size:17px;line-height:1.9;color:var(--text)}
.article-body p{margin:0 0 1.5em}
.article-body h2{
  position:relative;margin:2em 0 .8em;padding-left:14px;
  font-size:26px;line-height:1.35;font-weight:700;color:var(--brand-dark);
}
.article-body h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--amber)}
.article-body h3{margin:1.6em 0 .6em;font-size:21px;font-weight:600;line-height:1.4;color:var(--brand-dark)}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;background:var(--brand-light);
  border-left:3px solid var(--brand);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{max-width:100%;height:auto;border-radius:var(--r-sm);margin:1.6em auto}
.article-body figure{margin:1.6em 0}
.article-body figcaption{margin-top:8px;font-size:13px;letter-spacing:.02em;color:var(--text-3);text-align:center}
.article-body ul,.article-body ol{margin:0 0 1.5em;padding-left:1.4em}
.article-body ul li{list-style:disc}
.article-body ol li{list-style:decimal}
.article-body li{margin-bottom:.5em;line-height:1.9}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--amber)}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:16px}
.article-body th{background:var(--brand-light);font-weight:600;text-align:left}
.article-body th,.article-body td{padding:10px 14px;border-bottom:1px solid var(--line)}
.article-body code{background:#EFEAE0;padding:2px 6px;border-radius:6px;font-size:15px}
.article-body strong{font-weight:600}
@media (max-width:639px){
  .article-body{font-size:16px;line-height:1.9}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:19px}
  .article-title{font-size:29px}
}

/* ---------- 标签与分享 ---------- */
.article-foot{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 12px;
  border:1px solid var(--line);border-radius:999px;background:var(--card-alt);
  font-size:13px;color:var(--text-2);transition:border-color .15s ease,color .15s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand)}
.share-row{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3)}
.share-btn{
  min-height:38px;padding:0 16px;border:1px solid var(--brand);border-radius:var(--r-sm);
  background:transparent;color:var(--brand);font-size:14px;font-weight:600;cursor:pointer;
  transition:background .15s ease,color .15s ease;
}
.share-btn:hover{background:var(--brand-light)}
.share-btn:focus-visible{outline:2px solid var(--amber);outline-offset:2px}

/* ---------- 相关推荐 ---------- */
.related{margin-top:72px}
.section-title{
  font-family:var(--font-serif);font-size:26px;font-weight:600;color:var(--brand-dark);
  padding-bottom:14px;border-bottom:1px solid var(--line);
}
.related-grid{display:grid;grid-template-columns:1fr;gap:20px;margin-top:24px}
@media (min-width:700px){.related-grid{grid-template-columns:repeat(3,1fr)}}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sd-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sd-hover);border-color:var(--brand-light);background:var(--card-alt)}
.rel-card img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .2s ease}
.rel-card:hover img{transform:scale(1.02)}
.rel-card .rel-body{padding:16px 18px 20px}
.rel-card h3{font-size:16px;font-weight:600;line-height:1.55;color:var(--text);transition:color .2s ease}
.rel-card:hover h3{color:var(--brand)}
.rel-card p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--text-2)}
.rel-card .rel-link{display:inline-block;margin-top:12px;font-size:14px;font-weight:600;color:var(--amber)}

/* ---------- 返回入口 ---------- */
.back-row{margin-top:56px;display:flex;justify-content:center}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;letter-spacing:.02em;cursor:pointer;
  transition:transform .15s ease,box-shadow .15s ease,background .15s ease,color .15s ease;
}
.btn-primary{background:var(--amber);color:#fff;border:1px solid var(--amber)}
.btn-primary:hover{background:var(--amber-hover);border-color:var(--amber-hover);transform:translateY(-1px);box-shadow:0 10px 20px -12px rgba(185,106,27,.9)}
.btn-primary:active{transform:translateY(0)}
.btn-primary:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.btn-ghost{background:transparent;color:var(--brand);border:1px solid var(--brand)}
.btn-ghost:hover{background:var(--brand-light);transform:translateY(-1px)}
.btn-ghost:focus-visible{outline:2px solid var(--amber);outline-offset:2px}

/* ---------- 空态 ---------- */
.empty-state{
  margin-top:40px;padding:48px 28px;text-align:center;
  background:var(--card-alt);border:1px dashed var(--line);border-radius:var(--r-md);
}
.empty-state svg{width:40px;height:40px;margin:0 auto 14px;fill:none;stroke:var(--brand);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.empty-state h2{font-size:21px;font-weight:600;color:var(--brand-dark)}
.empty-state p{margin:10px auto 22px;max-width:420px;font-size:15px;color:var(--text-2)}

/* ---------- CTA 条 ---------- */
.cta-bar{position:relative;margin-top:88px;background:var(--brand-dark);color:#fff;overflow:hidden}
.cta-bar::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:30px 30px;
}
.cta-inner{
  position:relative;z-index:1;padding:56px 0;
  display:flex;flex-direction:column;gap:22px;align-items:flex-start;
}
@media (min-width:860px){.cta-inner{flex-direction:row;align-items:center;justify-content:space-between;gap:40px}}
.cta-inner h2{font-family:var(--font-serif);font-size:26px;font-weight:600;line-height:1.35}
.cta-inner p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.75);max-width:560px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.72);padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1000px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-name{color:#fff}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:340px}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:14px}
.footer-col ul li{margin-bottom:10px}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68)}
.footer-col a{color:rgba(255,255,255,.72);transition:color .15s ease}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.7)}
.footer-bottom a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}

/* roulang page: category1 */
:root{
  --brand:#17564E;
  --brand-dark:#102A27;
  --brand-light:#DCEBE6;
  --amber:#D9822B;
  --amber-dark:#B96A1B;
  --amber-light:#FBEBDA;
  --alert:#C2402B;
  --bg:#F6F3EC;
  --surface:#FFFFFF;
  --surface-2:#FDFBF6;
  --line:#E3DCCF;
  --ink:#17171A;
  --ink-2:#4A4A52;
  --ink-3:#8B8B93;
  --radius-sm:8px;
  --radius:12px;
  --radius-lg:16px;
  --shadow:0 1px 2px rgba(23,23,26,.04), 0 8px 24px -12px rgba(23,23,26,.12);
  --shadow-hover:0 2px 4px rgba(23,23,26,.06), 0 18px 34px -16px rgba(23,23,26,.24);
  --sidebar:240px;
  --serif:'Noto Serif SC','Songti SC','Source Han Serif SC',serif;
  --sans:'Noto Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--brand);text-decoration:none;transition:color .15s ease}
img{display:block;max-width:100%}
button,input{font:inherit}
svg{display:block}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media (min-width:768px){.container{padding:0 24px}}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ============ 侧栏 ============ */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);
  background:var(--brand-dark);
  display:none;flex-direction:column;
  padding:22px 14px 18px;z-index:40;overflow-y:auto;
}
.sidebar-brand{display:flex;align-items:center;gap:10px;padding:0 8px 18px;border-bottom:1px solid rgba(255,255,255,.14);color:#fff}
.sidebar-brand:hover{color:#fff}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.02em}
.nav-mark{width:26px;height:26px;flex:none}
.nav-list{margin-top:14px;display:flex;flex-direction:column;gap:2px}
.nav-link{
  position:relative;display:flex;align-items:center;gap:12px;
  min-height:44px;padding:0 12px;border-radius:8px;
  color:rgba(255,255,255,.78);font-size:15px;
  transition:background .1s ease,color .1s ease;
}
.nav-link svg{width:18px;height:18px;flex:none;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.nav-link:hover{background:rgba(255,255,255,.08);color:#fff}
.nav-link.active{background:rgba(255,255,255,.06);color:#fff;font-weight:600}
.nav-link.active::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:2px;background:var(--amber)}
.sidebar-cta{
  margin-top:18px;display:flex;align-items:center;justify-content:center;
  min-height:44px;border-radius:8px;border:1px solid rgba(217,130,43,.6);
  color:#F0BE86;font-size:15px;font-weight:600;letter-spacing:.02em;
  transition:background .15s ease,color .15s ease;
}
.sidebar-cta:hover{background:rgba(217,130,43,.18);color:#fff}
.sidebar-foot{
  margin-top:auto;padding:16px 8px 0;
  border-top:1px solid rgba(255,255,255,.12);
  color:rgba(255,255,255,.45);font-size:12px;line-height:1.75;
}

/* ============ 移动端顶栏 ============ */
.topbar{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  height:56px;padding:0 16px;background:#fff;border-bottom:1px solid var(--line);
}
.topbar-brand{display:flex;align-items:center;gap:8px;color:var(--brand-dark);font-size:16px;font-weight:700}
.topbar-brand svg{width:24px;height:24px}
.burger{
  width:44px;height:44px;display:grid;place-items:center;
  border:0;background:transparent;color:var(--brand-dark);
  cursor:pointer;border-radius:8px;transition:background .15s ease;
}
.burger:hover{background:var(--brand-light)}
.burger svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:60}
.drawer{
  position:fixed;top:0;left:0;bottom:0;width:min(84vw,320px);
  background:var(--brand-dark);z-index:61;padding:16px 14px;overflow-y:auto;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 8px 12px;border-bottom:1px solid rgba(255,255,255,.14)}
.drawer-head span{color:#fff;font-size:16px;font-weight:700}
.drawer-close{
  width:44px;height:44px;border:0;background:transparent;color:#fff;
  font-size:26px;line-height:1;cursor:pointer;border-radius:8px;
}
.drawer-close:hover{background:rgba(255,255,255,.1)}
.drawer .nav-list{margin-top:12px}
.drawer .nav-link{font-size:17px;min-height:52px}
.drawer-mask[hidden],.drawer[hidden]{display:none!important}

/* ============ 内容区 ============ */
.content{min-height:100vh}
@media (min-width:1024px){
  .topbar,.drawer,.drawer-mask{display:none!important}
  .sidebar{display:flex}
  .content{margin-left:var(--sidebar)}
}
@media (min-width:1280px){
  :root{--sidebar:260px}
}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  background-image:linear-gradient(rgba(16,42,39,.78),rgba(16,42,39,.78)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  color:#fff;padding:36px 0 44px;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.68);letter-spacing:.02em;margin-bottom:18px}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs a{color:rgba(255,255,255,.84);border-bottom:1px solid transparent}
.crumbs a:hover{color:#fff;border-color:rgba(255,255,255,.6)}
.crumbs .sep{color:rgba(255,255,255,.4)}
.page-hero h1{font-family:var(--serif);font-size:clamp(30px,4.4vw,44px);letter-spacing:.02em}
.page-hero .lead{margin-top:16px;max-width:780px;font-size:16px;line-height:1.9;color:rgba(255,255,255,.86)}
.hero-meta{margin-top:24px;display:flex;flex-wrap:wrap;gap:10px}
.hero-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);color:#fff;
}
.hero-chip i{width:7px;height:7px;border-radius:50%;background:var(--amber);display:inline-block}

/* ============ 板块 ============ */
.section{padding:52px 0}
@media (min-width:1024px){.section{padding:80px 0}}
.section-alt{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.6vw,30px)}
.section-head p{margin-top:10px;max-width:760px;color:var(--ink-2);font-size:15px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--brand);
  background:var(--brand-light);padding:5px 12px;border-radius:999px;
}

/* ============ 两栏布局 ============ */
.two-col{display:grid;gap:26px}
@media (min-width:1024px){
  .two-col{grid-template-columns:minmax(0,300px) minmax(0,1fr);gap:40px;align-items:start}
}
.side-note{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);
}
@media (min-width:1024px){.side-note{position:sticky;top:24px}}
.side-note h2{font-size:18px}
.side-note > p{margin-top:12px;font-size:14px;line-height:1.85;color:var(--ink-2)}
.stat-row{margin-top:18px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.stat{background:var(--brand-light);border-radius:var(--radius-sm);padding:12px 14px}
.stat strong{display:block;font-family:var(--serif);font-size:20px;color:var(--brand);line-height:1.3}
.stat span{font-size:12px;color:var(--ink-2);letter-spacing:.02em}
.toc{margin-top:20px;padding-top:16px;border-top:1px dashed var(--line)}
.toc h3{font-size:13px;font-weight:600;letter-spacing:.1em;color:var(--ink-3);margin-bottom:8px}
.toc a{display:flex;align-items:center;gap:10px;padding:9px 0;font-size:14px;color:var(--ink-2)}
.toc a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber);flex:none}
.toc a:hover{color:var(--brand)}

/* ============ 卡片网格 ============ */
.card-grid{display:grid;gap:20px}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--brand-light);background:var(--surface-2)}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#eae5da}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease}
.card:hover .card-cover img{transform:scale(1.02)}
.card-badge{
  position:absolute;left:12px;top:12px;
  background:rgba(16,42,39,.84);color:#fff;
  font-size:12px;letter-spacing:.02em;padding:4px 10px;border-radius:6px;
}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;font-weight:600}
.card-body p{font-size:14px;line-height:1.78;color:var(--ink-2)}
.card-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--ink-3);letter-spacing:.02em}
.link-more{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
}
.link-more::after{content:"→";transition:transform .15s ease}
.link-more:hover{color:var(--amber-dark);text-decoration:underline}
.link-more:hover::after{transform:translateX(3px)}

/* ============ 场次列表 ============ */
.sessions{display:grid;gap:12px}
.session{
  display:grid;gap:14px;align-items:center;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow);
  transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.session:hover{border-color:var(--brand-light);box-shadow:var(--shadow-hover);transform:translateY(-2px)}
@media (min-width:640px){.session{grid-template-columns:110px minmax(0,1fr) auto;gap:20px}}
.session-date{font-family:var(--serif);font-size:20px;font-weight:700;color:var(--brand);line-height:1.3}
.session-date span{display:block;font-family:var(--sans);font-size:12px;font-weight:400;color:var(--ink-3);letter-spacing:.04em}
.session-main h3{font-size:16px;font-weight:600}
.session-main p{margin-top:6px;font-size:14px;color:var(--ink-2)}
.tag{display:inline-block;font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px;background:var(--amber-light);color:var(--amber-dark);white-space:nowrap}
.tag-brand{background:var(--brand-light);color:var(--brand)}

/* ============ 流程步骤 ============ */
.steps{display:grid;gap:16px;counter-reset:step}
@media (min-width:768px){.steps{grid-template-columns:repeat(3,minmax(0,1fr))}}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:24px 22px 22px 64px;box-shadow:var(--shadow);
}
.step::before{
  counter-increment:step;content:"0" counter(step);
  position:absolute;left:20px;top:20px;
  font-family:var(--serif);font-size:20px;font-weight:700;color:var(--amber);
}
.step h3{font-size:16px;font-weight:600}
.step p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--ink-2)}

/* ============ 订阅表单 ============ */
.subscribe{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:26px;box-shadow:var(--shadow);
}
@media (min-width:768px){.subscribe{padding:34px}}
.subscribe h2{font-size:clamp(20px,2.4vw,26px)}
.subscribe > p{margin-top:10px;font-size:15px;color:var(--ink-2);max-width:700px}
.subscribe form{margin-top:20px;display:grid;gap:12px}
@media (min-width:768px){.subscribe form{grid-template-columns:minmax(0,1fr) auto}}
.field{
  width:100%;height:48px;padding:0 16px;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:#fff;color:var(--ink);transition:border-color .15s ease,box-shadow .15s ease;
}
.field::placeholder{color:var(--ink-3)}
.field:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,86,78,.12)}
.form-hint{margin-top:12px;font-size:12px;color:var(--ink-3)}
.subscribe-ok{
  margin-top:20px;display:flex;align-items:flex-start;gap:12px;
  background:var(--brand-light);border:1px solid #C7DFD8;border-radius:var(--radius);
  padding:18px;color:var(--brand);
}
.subscribe-ok strong{display:block;font-size:15px}
.subscribe-ok span{display:block;margin-top:4px;font-size:13px;color:var(--ink-2)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .15s ease,background .15s ease,box-shadow .15s ease,border-color .15s ease;
}
.btn-primary{background:var(--amber);color:#fff;box-shadow:0 8px 18px -10px rgba(185,106,27,.95)}
.btn-primary:hover{background:var(--amber-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-primary:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand)}
.btn-ghost:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.btn-light{background:#fff;color:var(--brand-dark);border-color:#fff}
.btn-light:hover{background:var(--amber-light);color:var(--brand-dark);transform:translateY(-1px)}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:8px;max-width:920px}
.faq{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}
.faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;line-height:1;color:var(--amber);flex:none}
.faq[open] summary{color:var(--brand)}
.faq[open] summary::after{content:"–"}
.faq-body{padding:16px 20px 20px;background:var(--brand-light);font-size:15px;line-height:1.88;color:var(--ink-2)}

/* ============ CTA 条 ============ */
.cta-band{
  background:var(--brand-dark);
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.045) 0 2px,transparent 2px 10px);
  color:#fff;border-radius:var(--radius-lg);padding:30px;
  display:grid;gap:22px;align-items:center;
}
@media (min-width:768px){.cta-band{grid-template-columns:minmax(0,1fr) auto;padding:42px}}
.cta-band h2{font-size:clamp(20px,2.5vw,28px)}
.cta-band p{margin-top:10px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.74)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-dark);color:rgba(255,255,255,.72);margin-top:24px;padding:48px 0 24px}
.footer-grid{display:grid;gap:28px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff}
.footer-brand .nav-mark{width:26px;height:26px}
.footer-brand .brand-name{font-size:17px;font-weight:700}
.footer-about{margin-top:14px;font-size:14px;line-height:1.85}
.footer-col h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:12px}
.footer-col li{margin-bottom:8px}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px}
.footer-col a:hover{color:var(--amber)}
.footer-col p{font-size:14px;line-height:1.85}
.footer-bottom{
  margin-top:32px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:#fff}

/* roulang page: category2 */
:root{
    --ink:#17564E;
    --ink-deep:#102A27;
    --ink-soft:#DCEBE6;
    --amber:#D9822B;
    --amber-dark:#B96A1B;
    --amber-soft:#FBEBDA;
    --alert:#C2402B;
    --bg:#F6F3EC;
    --card:#FFFFFF;
    --card-alt:#FDFBF6;
    --line:#E3DCCF;
    --text:#17171A;
    --muted:#4A4A52;
    --faint:#8B8B93;
    --r-sm:8px;
    --r-md:12px;
    --r-lg:16px;
    --shadow:0 1px 2px rgba(23,23,26,.04),0 8px 24px -12px rgba(23,23,26,.12);
    --shadow-lg:0 2px 4px rgba(23,23,26,.05),0 18px 36px -18px rgba(23,23,26,.22);
    --serif:'Noto Serif SC','Songti SC','Source Han Serif SC',serif;
    --sans:'Noto Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  html body{
    margin:0;padding:0;
    font-family:var(--sans);
    font-size:16px;line-height:1.85;letter-spacing:.01em;
    color:var(--text);background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  a{color:var(--ink);text-decoration:none;transition:color .18s ease,border-color .18s ease;}
  a:hover{color:var(--amber-dark);}
  img{max-width:100%;display:block;}
  button{font-family:inherit;}
  :focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
  @media(max-width:639px){.container{padding:0 16px;}}

  /* ============ 左侧竖向导航 ============ */
  .sidebar{
    position:fixed;left:0;top:0;bottom:0;width:240px;z-index:60;
    background:var(--ink-deep);color:#fff;
    display:flex;flex-direction:column;
    padding:26px 0 20px;overflow-y:auto;
    border-right:1px solid rgba(255,255,255,.06);
  }
  @media(min-width:1280px){.sidebar{width:260px;}}
  .brand{display:flex;align-items:center;gap:10px;padding:0 22px 20px;color:#fff;}
  .brand:hover{color:#fff;}
  .nav-mark{width:28px;height:28px;flex:0 0 28px;}
  .brand-name{font-family:var(--serif);font-size:20px;font-weight:700;letter-spacing:.04em;}
  .sidebar .brand{border-bottom:1px solid rgba(255,255,255,.14);margin-bottom:14px;padding-bottom:20px;}
  .nav-list{display:flex;flex-direction:column;padding:0;margin:0;}
  .nav-link{
    display:flex;align-items:center;gap:12px;
    height:44px;padding:0 22px;
    font-size:15px;color:rgba(255,255,255,.72);
    border-left:3px solid transparent;
    transition:background .1s ease,color .1s ease,border-color .1s ease;
  }
  .nav-link svg{width:18px;height:18px;flex:0 0 18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
  .nav-link:hover{background:rgba(255,255,255,.06);color:#fff;}
  .nav-link.active{background:rgba(255,255,255,.06);color:#fff;border-left-color:var(--amber);font-weight:600;}
  .sidebar-cta{padding:22px 22px 0;}
  .sidebar-foot{margin-top:auto;padding:24px 22px 0;font-size:12px;color:rgba(255,255,255,.55);line-height:1.9;}
  .sidebar-foot p{margin:0;}

  /* ============ 移动端顶栏与抽屉 ============ */
  .topbar{
    display:none;position:sticky;top:0;z-index:55;
    height:56px;background:#fff;border-bottom:1px solid var(--line);
    align-items:center;justify-content:space-between;padding:0 16px;
  }
  .brand-dark{color:var(--text);padding:0;border:0;}
  .brand-dark .brand-name{font-size:18px;color:var(--ink);}
  .brand-dark svg rect{stroke:var(--ink);}
  .menu-btn{
    width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
    background:transparent;border:1px solid var(--line);border-radius:var(--r-sm);
    color:var(--ink);cursor:pointer;transition:background .18s ease;
  }
  .menu-btn:hover{background:var(--ink-soft);}
  .menu-btn svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;}
  .drawer{
    position:fixed;inset:0;z-index:80;background:var(--ink-deep);
    transform:translateX(-100%);transition:transform .26s ease;
    display:flex;flex-direction:column;padding:18px 0;
  }
  .drawer.open{transform:translateX(0);}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 20px 16px;border-bottom:1px solid rgba(255,255,255,.14);}
  .drawer .brand{padding:0;}
  .drawer .brand-name{color:#fff;}
  .drawer .nav-link{height:52px;font-size:17px;}
  .drawer-close{
    width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
    background:transparent;border:1px solid rgba(255,255,255,.3);border-radius:var(--r-sm);
    color:#fff;cursor:pointer;
  }
  .drawer-close svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;}
  .drawer-foot{margin-top:auto;padding:20px;font-size:13px;color:rgba(255,255,255,.6);}
  @media(max-width:1023px){
    .sidebar{display:none;}
    .topbar{display:flex;}
  }

  /* ============ 页面主容器 ============ */
  .page{margin-left:240px;min-height:100vh;display:flex;flex-direction:column;}
  @media(min-width:1280px){.page{margin-left:260px;}}
  @media(max-width:1023px){.page{margin-left:0;}}
  main{flex:1 1 auto;padding-bottom:0;}

  /* ============ 按钮与徽章 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;height:48px;padding:0 24px;
    border-radius:var(--r-sm);border:1px solid transparent;
    font-size:15px;font-weight:600;letter-spacing:.02em;cursor:pointer;
    transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .btn-primary{background:var(--amber);color:#fff;}
  .btn-primary:hover{background:var(--amber-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-lg);}
  .btn-primary:active{transform:translateY(0);}
  .btn-outline{border-color:var(--ink);color:var(--ink);background:transparent;}
  .btn-outline:hover{background:var(--ink-soft);color:var(--ink);}
  .btn-ghost-light{border-color:rgba(255,255,255,.45);color:#fff;background:transparent;width:100%;height:44px;font-size:14px;}
  .btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;}
  .btn-block{width:100%;}
  .btn-sm{height:40px;min-height:40px;padding:0 18px;font-size:14px;}

  .eyebrow{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 12px;border-radius:var(--r-sm);
    background:var(--amber-soft);color:var(--amber-dark);
    font-size:13px;font-weight:600;letter-spacing:.04em;
  }
  .tag{
    display:inline-flex;align-items:center;
    padding:3px 10px;border-radius:var(--r-sm);
    background:var(--ink-soft);color:var(--ink);
    font-size:12px;font-weight:600;letter-spacing:.03em;
  }
  .text-link{font-size:14px;font-weight:600;color:var(--ink);}
  .text-link:hover{color:var(--amber-dark);text-decoration:underline;}

  /* ============ 面包屑 ============ */
  .breadcrumb{padding:22px 0 0;}
  .breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0;padding:0;font-size:13px;color:var(--faint);letter-spacing:.02em;}
  .breadcrumb li{display:flex;align-items:center;gap:8px;}
  .breadcrumb li+li::before{content:"/";color:#C6BDB0;}
  .breadcrumb a{color:var(--muted);}
  .breadcrumb a:hover{color:var(--amber-dark);}
  .breadcrumb [aria-current]{color:var(--ink);font-weight:600;}

  /* ============ Hero ============ */
  .hero{
    position:relative;margin-top:22px;
    background-image:url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;
    overflow:hidden;
  }
  .hero::before{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(16,42,39,.72) 0%,rgba(16,42,39,.84) 100%);
  }
  .hero-inner{position:relative;z-index:1;padding:52px 24px 48px;color:#fff;max-width:1200px;margin:0 auto;}
  .hero-badge{
    display:inline-flex;align-items:center;gap:8px;
    padding:5px 14px;border-radius:var(--r-sm);
    border:1px solid rgba(255,255,255,.35);
    font-size:13px;letter-spacing:.06em;color:rgba(255,255,255,.92);
  }
  .hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--alert);display:inline-block;animation:breathe 1.6s ease-in-out infinite;}
  @keyframes breathe{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.78);}}
  .hero h1{
    font-family:var(--serif);font-weight:600;
    font-size:44px;line-height:1.25;letter-spacing:.04em;
    margin:18px 0 10px;color:#fff;
  }
  .hero-sub{font-size:17px;color:rgba(255,255,255,.86);margin:0 0 14px;letter-spacing:.02em;}
  .hero-lead{font-size:16px;line-height:1.9;color:rgba(255,255,255,.82);margin:0;max-width:720px;}
  .hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:30px;padding-top:24px;border-top:1px solid rgba(255,255,255,.2);}
  .hero-stats div{display:flex;flex-direction:column;gap:2px;}
  .hero-stats strong{font-family:var(--serif);font-size:26px;font-weight:600;color:#fff;line-height:1.2;}
  .hero-stats span{font-size:13px;color:rgba(255,255,255,.68);letter-spacing:.04em;}

  /* ============ 板块通用 ============ */
  .section{padding:72px 0 0;}
  .section-last{padding-bottom:80px;}
  .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap;}
  .section-head h2{
    font-family:var(--serif);font-size:30px;font-weight:700;line-height:1.35;
    margin:0 0 8px;color:var(--text);border-left:4px solid var(--amber);padding-left:14px;
  }
  .section-head p{margin:0;font-size:15px;color:var(--muted);padding-left:18px;}
  .section-head .head-aside{font-size:13px;color:var(--faint);letter-spacing:.02em;}

  /* ============ 两栏 + 粘性导览 ============ */
  .split{display:grid;grid-template-columns:minmax(0,1fr) 292px;gap:48px;align-items:start;}
  @media(max-width:1100px){.split{grid-template-columns:minmax(0,1fr) 250px;gap:32px;}}
  @media(max-width:1023px){.split{grid-template-columns:1fr;gap:40px;}}
  .side-rail{position:sticky;top:28px;display:flex;flex-direction:column;gap:16px;}
  @media(max-width:1023px){.side-rail{position:static;top:auto;flex-direction:row;flex-wrap:wrap;}}
  .rail-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
    padding:20px;box-shadow:var(--shadow);flex:1 1 260px;
  }
  .rail-title{margin:0 0 12px;font-size:14px;font-weight:700;color:var(--ink);letter-spacing:.06em;}
  .rail-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px;}
  .rail-list a{
    display:block;padding:8px 10px;border-radius:var(--r-sm);
    font-size:14px;color:var(--muted);border-left:2px solid transparent;
  }
  .rail-list a:hover{background:var(--card-alt);color:var(--ink);border-left-color:var(--amber);}
  .rail-card-ink{background:var(--ink-deep);border-color:rgba(255,255,255,.14);color:#fff;}
  .rail-card-ink .rail-title{color:#fff;}
  .rail-note{margin:0 0 16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.78);}

  /* ============ 图文推荐卡 ============ */
  .feature-card{
    display:grid;grid-template-columns:1fr 1fr;gap:0;
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
    overflow:hidden;box-shadow:var(--shadow);
  }
  .feature-media{position:relative;min-height:260px;}
  .feature-media img{width:100%;height:100%;object-fit:cover;}
  .feature-media .media-tag{
    position:absolute;left:14px;top:14px;
    background:rgba(16,42,39,.86);color:#fff;
    font-size:12px;padding:4px 10px;border-radius:var(--r-sm);letter-spacing:.04em;
  }
  .feature-body{padding:28px 26px;display:flex;flex-direction:column;gap:12px;}
  .feature-body h3{font-family:var(--serif);font-size:22px;font-weight:600;line-height:1.45;margin:0;color:var(--text);}
  .feature-body p{margin:0;font-size:15px;line-height:1.9;color:var(--muted);}
  .feature-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:13px;color:var(--faint);letter-spacing:.02em;}
  .feature-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px;}
  @media(max-width:760px){
    .feature-card{grid-template-columns:1fr;}
    .feature-media{min-height:200px;}
    .feature-body{padding:22px 20px;}
  }

  /* ============ 纵向回放清单 ============ */
  .replay-list{border-top:1px solid var(--line);margin-top:8px;}
  .replay-row{
    display:grid;grid-template-columns:104px minmax(0,1fr);gap:26px;
    padding:26px 4px;border-bottom:1px solid var(--line);
    transition:background .18s ease;
  }
  .replay-row:hover{background:var(--card-alt);}
  .replay-index{display:flex;flex-direction:column;gap:6px;align-items:flex-start;}
  .replay-index .num{
    font-family:var(--serif);font-size:38px;line-height:1;font-weight:600;
    color:var(--amber);letter-spacing:.02em;
  }
  .replay-index time{font-size:13px;color:var(--faint);letter-spacing:.06em;}
  .replay-body{display:flex;flex-direction:column;gap:8px;min-width:0;}
  .replay-body h3{margin:0;font-size:17px;font-weight:600;line-height:1.6;}
  .replay-body h3 a{color:var(--text);}
  .replay-body h3 a:hover{color:var(--ink);}
  .replay-body p{margin:0;font-size:15px;line-height:1.8;color:var(--muted);}
  .replay-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--faint);letter-spacing:.02em;}
  @media(max-width:560px){
    .replay-row{grid-template-columns:1fr;gap:12px;padding:22px 0;}
    .replay-index{flex-direction:row;align-items:baseline;gap:12px;}
    .replay-index .num{font-size:30px;}
  }

  /* ============ 深色步骤区 ============ */
  .steps-wrap{background:var(--ink-soft);padding:64px 0 68px;margin-top:72px;}
  .steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;margin-top:28px;}
  .step-card{
    background:#fff;border:1px solid #C9DED7;border-radius:var(--r-md);
    padding:24px 22px;box-shadow:var(--shadow);
    transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:var(--ink);}
  .step-num{
    display:inline-flex;align-items:center;justify-content:center;
    width:38px;height:38px;border-radius:50%;
    border:1.5px solid var(--amber);color:var(--amber-dark);
    font-family:var(--serif);font-size:17px;font-weight:600;
  }
  .step-card h3{margin:16px 0 8px;font-size:19px;font-weight:600;color:var(--text);}
  .step-card p{margin:0;font-size:15px;line-height:1.85;color:var(--muted);}
  @media(max-width:900px){.steps{grid-template-columns:1fr;gap:16px;}}

  /* ============ 适用场景卡 ============ */
  .scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .scene-card{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
    padding:22px 22px 20px;box-shadow:var(--shadow);
    display:flex;gap:16px;align-items:flex-start;
    transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease,background .18s ease;
  }
  .scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#C9DED7;background:var(--card-alt);}
  .scene-icon{
    flex:0 0 40px;width:40px;height:40px;border-radius:var(--r-sm);
    background:var(--amber-soft);color:var(--amber-dark);
    display:inline-flex;align-items:center;justify-content:center;
  }
  .scene-icon svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
  .scene-card h3{margin:0 0 6px;font-size:17px;font-weight:600;}
  .scene-card p{margin:0;font-size:14.5px;line-height:1.85;color:var(--muted);}
  @media(max-width:760px){.scene-grid{grid-template-columns:1fr;gap:14px;}}

  /* ============ FAQ ============ */
  .faq-list{margin-top:8px;}
  .faq-item{
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
    margin-bottom:8px;overflow:hidden;transition:border-color .18s ease,background .18s ease;
  }
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:18px 22px;font-size:16px;font-weight:600;color:var(--text);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::after{
    content:"+";flex:0 0 auto;font-size:20px;font-weight:400;color:var(--amber);line-height:1;
  }
  .faq-item[open]{background:var(--ink-soft);border-color:#C9DED7;}
  .faq-item[open] summary::after{content:"–";color:var(--ink);}
  .faq-body{padding:0 22px 20px;font-size:15px;line-height:1.9;color:var(--muted);}

  /* ============ CTA 条 ============ */
  .cta-band{
    background:var(--ink-deep);color:#fff;margin-top:80px;
    background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.03) 0 2px,transparent 2px 12px);
  }
  .cta-inner{
    display:flex;align-items:center;justify-content:space-between;gap:32px;
    padding:52px 24px;flex-wrap:wrap;
  }
  .cta-copy{max-width:560px;}
  .cta-copy h2{font-family:var(--serif);font-size:28px;font-weight:600;margin:0 0 10px;color:#fff;}
  .cta-copy p{margin:0;font-size:15px;line-height:1.85;color:rgba(255,255,255,.78);}
  .cta-form{display:flex;gap:12px;flex-wrap:wrap;align-items:center;}
  .cta-form input{
    height:48px;min-width:260px;padding:0 16px;
    border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.32);
    background:rgba(255,255,255,.08);color:#fff;font-size:15px;
    transition:border-color .18s ease,background .18s ease;
  }
  .cta-form input::placeholder{color:rgba(255,255,255,.6);}
  .cta-form input:focus{border-color:var(--amber);background:rgba(255,255,255,.14);outline:none;}
  .cta-tip{width:100%;margin:2px 0 0;font-size:13px;color:rgba(255,255,255,.66);}
  .cta-tip.is-ok{color:#BFE3D8;}
  @media(max-width:900px){
    .cta-inner{padding:40px 24px;flex-direction:column;align-items:flex-start;}
    .cta-form{width:100%;}
    .cta-form input{min-width:0;flex:1 1 200px;}
  }

  /* ============ 页脚 ============ */
  .site-footer{background:var(--ink-deep);color:rgba(255,255,255,.72);margin-top:0;}
  .footer-grid{
    display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;
    padding:60px 0 40px;
  }
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .footer-brand .brand-name{color:#fff;font-family:var(--serif);font-size:19px;font-weight:700;}
  .footer-about{margin:0;font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);}
  .footer-col h3{margin:0 0 14px;font-size:15px;color:#fff;font-weight:600;letter-spacing:.04em;}
  .footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px;}
  .footer-col p{margin:0;font-size:14px;line-height:1.9;}
  .footer-col a{color:rgba(255,255,255,.72);}
  .footer-col a:hover{color:#fff;}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    border-top:1px solid rgba(255,255,255,.14);
    padding:20px 0 28px;font-size:13px;color:rgba(255,255,255,.6);
  }
  .footer-bottom a{color:rgba(255,255,255,.72);}
  .footer-bottom a:hover{color:#fff;}
  @media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 32px;}}
  @media(max-width:560px){.footer-grid{grid-template-columns:1fr;}}

  @media(max-width:1023px){
    .hero h1{font-size:34px;}
    .hero-stats{gap:24px;}
    .section{padding:56px 0 0;}
    .steps-wrap{padding:48px 0 52px;margin-top:56px;}
    .cta-band{margin-top:56px;}
  }
  @media(max-width:640px){
    .hero h1{font-size:30px;}
    .hero-inner{padding:38px 16px 36px;}
    .section-head h2{font-size:24px;}
    .cta-copy h2{font-size:23px;}
  }

/* roulang page: category3 */
:root{
    --brand:#17564E;
    --brand-deep:#102A27;
    --brand-light:#DCEBE6;
    --amber:#D9822B;
    --amber-dark:#B96A1B;
    --amber-light:#FBEBDA;
    --alert:#C2402B;
    --bg:#F6F3EC;
    --card:#FFFFFF;
    --card-2:#FDFBF6;
    --line:#E3DCCF;
    --ink:#17171A;
    --ink-soft:#4A4A52;
    --muted:#8B8B93;
    --radius-sm:8px;
    --radius:12px;
    --radius-lg:16px;
    --shadow-sm:0 1px 2px rgba(23,23,26,.04), 0 8px 24px -12px rgba(23,23,26,.12);
    --shadow-md:0 2px 4px rgba(23,23,26,.05), 0 18px 34px -16px rgba(23,23,26,.2);
    --serif:'Noto Serif SC','Songti SC','Source Han Serif SC',Georgia,serif;
    --sans:'Noto Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  html body{
    margin:0;
    padding:0;
    background:var(--bg);
    color:var(--ink);
    font-family:var(--sans);
    font-size:16px;
    line-height:1.85;
    letter-spacing:.01em;
    -webkit-font-smoothing:antialiased;
  }
  .container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}
  img{max-width:100%;display:block;}
  a{text-decoration:none;}
  :focus-visible{outline:2px solid var(--amber);outline-offset:2px;}

  /* ---------- 桌面左侧竖向导航 ---------- */
  .sidebar{
    position:fixed;
    top:0;left:0;bottom:0;
    width:240px;
    background:var(--brand-deep);
    display:flex;
    flex-direction:column;
    padding:26px 0 22px;
    z-index:60;
    overflow-y:auto;
  }
  @media (min-width:1280px){
    .sidebar{width:260px;}
  }
  .sidebar-brand{
    display:flex;align-items:center;gap:10px;
    padding:0 20px 18px;
    margin:0 0 16px;
    border-bottom:1px solid rgba(255,255,255,.14);
  }
  .brand-name{
    color:#fff;
    font-family:var(--serif);
    font-weight:700;
    font-size:17px;
    letter-spacing:.02em;
  }
  .nav-mark{width:28px;height:28px;flex:0 0 auto;}
  .nav-list{display:flex;flex-direction:column;gap:2px;padding:0 12px;}
  .nav-link{
    display:flex;align-items:center;gap:12px;
    height:44px;
    padding:0 12px;
    border-radius:8px;
    border-left:3px solid transparent;
    color:rgba(255,255,255,.76);
    font-size:15px;
    letter-spacing:.01em;
    transition:background .12s ease,color .12s ease,border-color .12s ease;
  }
  .nav-link svg{
    width:18px;height:18px;flex:0 0 auto;
    fill:none;
    stroke:currentColor;
    stroke-width:1.7;
    stroke-linecap:round;
    stroke-linejoin:round;
  }
  .nav-link:hover{background:rgba(255,255,255,.09);color:#fff;}
  .nav-link.active{
    background:rgba(255,255,255,.09);
    border-left-color:var(--amber);
    color:#fff;
    font-weight:600;
  }
  .side-cta{
    display:block;
    margin:22px 20px 0;
    padding:11px 14px;
    text-align:center;
    border:1px solid rgba(255,255,255,.3);
    border-radius:8px;
    color:#fff;
    font-size:14px;
    font-weight:600;
    letter-spacing:.02em;
    transition:background .16s ease,border-color .16s ease;
  }
  .side-cta:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.5);}
  .side-foot{
    margin-top:auto;
    padding:24px 20px 0;
    font-size:12px;
    line-height:1.75;
    color:rgba(255,255,255,.5);
  }
  .side-foot p{margin:0 0 4px;}

  /* ---------- 移动端顶栏与抽屉 ---------- */
  .topbar{display:none;}
  @media (max-width:1023px){
    .topbar{
      display:flex;
      position:sticky;
      top:0;
      z-index:70;
      height:56px;
      align-items:center;
      justify-content:space-between;
      padding:0 16px;
      background:#fff;
      border-bottom:1px solid var(--line);
    }
  }
  .topbar-brand{display:flex;align-items:center;gap:9px;}
  .brand-name--dark{color:var(--brand-deep);}
  .nav-toggle{
    width:44px;height:44px;
    display:flex;flex-direction:column;
    align-items:center;justify-content:center;gap:5px;
    background:none;border:0;cursor:pointer;padding:0;
  }
  .nav-toggle span{display:block;width:22px;height:2px;border-radius:2px;background:var(--brand-deep);}
  .drawer{
    position:fixed;
    inset:0;
    z-index:90;
    display:flex;
    flex-direction:column;
    padding:20px 0 24px;
    background:var(--brand-deep);
    transform:translateX(-100%);
    transition:transform .24s ease;
    overflow-y:auto;
  }
  .drawer.open{transform:translateX(0);}
  @media (min-width:1024px){.drawer{display:none;}}
  .drawer-head{
    display:flex;align-items:center;justify-content:space-between;
    padding:0 20px 16px;
    margin-bottom:14px;
    border-bottom:1px solid rgba(255,255,255,.14);
  }
  .drawer-close{
    width:44px;height:44px;
    display:flex;align-items:center;justify-content:center;
    background:none;
    border:1px solid rgba(255,255,255,.3);
    border-radius:8px;
    color:#fff;
    font-size:22px;
    line-height:1;
    cursor:pointer;
  }
  .drawer .nav-link{height:52px;font-size:17px;}
  .drawer .side-cta{margin:26px 20px 0;}
  .drawer-foot{padding:20px;font-size:12px;color:rgba(255,255,255,.5);line-height:1.75;}

  /* ---------- 主内容外壳 ---------- */
  .shell{
    margin-left:240px;
    min-height:100vh;
    display:flex;
    flex-direction:column;
  }
  @media (min-width:1280px){.shell{margin-left:260px;}}
  @media (max-width:1023px){.shell{margin-left:0;}}
  main{flex:1 1 auto;}

  /* ---------- 按钮与标签 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:48px;
    padding:0 24px;
    border-radius:8px;
    border:1px solid transparent;
    font-family:var(--sans);
    font-size:15px;
    font-weight:600;
    letter-spacing:.02em;
    cursor:pointer;
    transition:transform .16s ease,background .16s ease,box-shadow .16s ease,color .16s ease,border-color .16s ease;
  }
  .btn-primary{
    background:var(--amber);
    color:#fff;
    box-shadow:0 10px 22px -12px rgba(217,130,43,.9);
  }
  .btn-primary:hover{background:var(--amber-dark);transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(217,130,43,.95);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{
    background:transparent;
    border-color:rgba(255,255,255,.5);
    color:#fff;
  }
  .btn-ghost:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.75);}
  .btn-outline{
    background:transparent;
    border-color:var(--brand);
    color:var(--brand);
  }
  .btn-outline:hover{background:var(--brand-light);}
  .badge-amber{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:5px 12px;
    border-radius:8px;
    border:1px solid rgba(217,130,43,.65);
    background:rgba(217,130,43,.16);
    color:#F0BE86;
    font-size:13px;
    font-weight:600;
    letter-spacing:.06em;
  }
  .text-link{
    color:var(--brand);
    font-size:15px;
    font-weight:600;
    border-bottom:1px solid transparent;
    transition:color .16s ease,border-color .16s ease;
  }
  .text-link:hover{color:var(--amber-dark);border-bottom-color:currentColor;}

  /* ---------- 页头 ---------- */
  .page-hero{
    position:relative;
    background-size:cover;
    background-position:center;
    color:#fff;
    padding:54px 0 62px;
    overflow:hidden;
  }
  .page-hero::before{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(180deg,rgba(16,42,39,.86),rgba(16,42,39,.74));
  }
  .hero-inner{position:relative;z-index:2;}
  .breadcrumb{margin:0 0 20px;}
  .breadcrumb ol{
    display:flex;flex-wrap:wrap;align-items:center;
    gap:8px;
    margin:0;padding:0;
    list-style:none;
    font-size:13px;
    letter-spacing:.02em;
    color:rgba(255,255,255,.7);
  }
  .breadcrumb li + li::before{content:"/";margin-right:8px;color:rgba(255,255,255,.45);}
  .breadcrumb a{color:rgba(255,255,255,.86);}
  .breadcrumb a:hover{color:var(--amber);}
  .page-hero h1{
    font-family:var(--serif);
    font-size:clamp(30px,4.2vw,46px);
    font-weight:700;
    line-height:1.25;
    letter-spacing:.01em;
    margin:14px 0 16px;
  }
  .hero-lead{
    max-width:760px;
    margin:0 0 28px;
    font-size:17px;
    line-height:1.9;
    color:rgba(255,255,255,.86);
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;}

  /* ---------- 通用板块 ---------- */
  .section{padding:88px 0;}
  @media (max-width:767px){.section{padding:56px 0;}}
  .section-head{max-width:760px;margin-bottom:44px;}
  .eyebrow{
    display:inline-block;
    font-size:13px;
    font-weight:600;
    letter-spacing:.16em;
    color:var(--amber-dark);
  }
  .section-title{
    font-size:30px;
    font-weight:700;
    line-height:1.35;
    margin:10px 0 12px;
    color:var(--ink);
  }
  @media (max-width:767px){.section-title{font-size:25px;}}
  .section-desc{margin:0;color:var(--ink-soft);font-size:16px;}

  /* ---------- 杂志式图文交替 ---------- */
  .mag-list{display:flex;flex-direction:column;}
  .mag-row{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:48px;
    align-items:center;
    padding:46px 0;
    border-bottom:1px solid var(--line);
  }
  .mag-row:first-child{padding-top:0;}
  .mag-row:last-child{border-bottom:0;padding-bottom:0;}
  .mag-row.reverse .mag-media{order:2;}
  .mag-media img{
    width:100%;
    aspect-ratio:16/9;
    object-fit:cover;
    border-radius:16px;
    border:1px solid var(--line);
    box-shadow:var(--shadow-sm);
  }
  .mag-num{
    display:block;
    font-family:var(--serif);
    font-size:32px;
    font-weight:700;
    line-height:1;
    color:var(--amber);
  }
  .mag-body h3{
    font-size:22px;
    font-weight:600;
    line-height:1.4;
    margin:12px 0 10px;
    color:var(--ink);
  }
  .mag-body p{margin:0 0 14px;color:var(--ink-soft);}
  .tick-list{list-style:none;margin:0 0 16px;padding:0;}
  .tick-list li{
    position:relative;
    padding-left:22px;
    margin-bottom:8px;
    font-size:15.5px;
    color:var(--ink-soft);
  }
  .tick-list li::before{
    content:"";
    position:absolute;
    left:0;top:.62em;
    width:8px;height:8px;
    border-radius:2px;
    background:var(--brand-light);
    border:1.5px solid var(--brand);
  }
  @media (max-width:899px){
    .mag-row{grid-template-columns:1fr;gap:22px;padding:34px 0;}
    .mag-row.reverse .mag-media{order:0;}
    .mag-body h3{font-size:20px;}
  }

  /* ---------- 深色流程区 ---------- */
  .dark-band{
    background:var(--brand-deep);
    color:#fff;
    padding:80px 0;
  }
  @media (max-width:767px){.dark-band{padding:56px 0;}}
  .section-head--light .section-title{color:#fff;}
  .section-head--light .section-desc{color:rgba(255,255,255,.72);}
  .section-head--light .eyebrow{color:#E9A961;}
  .step{
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.16);
    border-radius:12px;
    padding:24px 22px;
    transition:background .18s ease,border-color .18s ease,transform .18s ease;
  }
  .step:hover{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.3);transform:translateY(-2px);}
  .step-num{
    font-family:var(--serif);
    font-size:26px;
    font-weight:700;
    line-height:1;
    color:var(--amber);
  }
  .step h3{font-size:18px;font-weight:600;margin:12px 0 8px;color:#fff;}
  .step p{margin:0;font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.72);}

  /* ---------- 数据卡 ---------- */
  .stat{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:12px;
    padding:24px 22px;
    box-shadow:var(--shadow-sm);
    transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .stat:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#C6DCD5;}
  .stat-num{
    font-family:var(--serif);
    font-size:32px;
    font-weight:700;
    line-height:1.15;
    color:var(--brand);
  }
  .stat-label{font-size:14px;color:var(--muted);margin-top:4px;}
  .stat p{margin:12px 0 0;font-size:15px;color:var(--ink-soft);line-height:1.8;}

  /* ---------- FAQ ---------- */
  .faq{display:flex;flex-direction:column;gap:8px;max-width:920px;}
  .faq-item{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:12px;
    overflow:hidden;
    transition:border-color .16s ease,box-shadow .16s ease;
  }
  .faq-item:hover{border-color:#C6DCD5;}
  .faq-item[open]{box-shadow:var(--shadow-sm);}
  .faq-item summary{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    min-height:44px;
    padding:18px 22px;
    font-size:16px;
    font-weight:600;
    color:var(--ink);
    cursor:pointer;
    list-style:none;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item[open] summary{background:var(--brand-light);color:var(--brand-deep);}
  .faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto;}
  .faq-icon::before,
  .faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:1px;}
  .faq-icon::before{left:0;top:7px;width:16px;height:2px;}
  .faq-icon::after{left:7px;top:0;width:2px;height:16px;transition:transform .18s ease;}
  .faq-item[open] .faq-icon::after{transform:scaleY(0);}
  .faq-body{
    padding:4px 22px 22px;
    font-size:15.5px;
    line-height:1.9;
    color:var(--ink-soft);
    background:var(--card-2);
  }

  /* ---------- 底部 CTA ---------- */
  .cta-band{
    position:relative;
    overflow:hidden;
    border-radius:16px;
    background:var(--brand-deep);
    color:#fff;
    padding:40px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:32px;
  }
  .cta-band::after{
    content:"";
    position:absolute;
    inset:0;
    background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 1px,transparent 1px 16px);
    pointer-events:none;
  }
  .cta-copy{position:relative;z-index:2;max-width:560px;}
  .cta-copy h2{font-size:24px;font-weight:700;margin:0 0 10px;color:#fff;line-height:1.4;}
  .cta-copy p{margin:0;font-size:15px;line-height:1.85;color:rgba(255,255,255,.75);}
  .cta-form{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:10px;}
  .cta-form input{
    height:48px;
    min-width:250px;
    padding:0 14px;
    border-radius:8px;
    border:1px solid rgba(255,255,255,.4);
    background:rgba(255,255,255,.96);
    color:var(--ink);
    font-family:var(--sans);
    font-size:15px;
  }
  .cta-form input::placeholder{color:#8B8B93;}
  .cta-note{position:relative;z-index:2;margin:14px 0 0;font-size:12.5px;color:rgba(255,255,255,.55);}
  @media (max-width:899px){
    .cta-band{flex-direction:column;align-items:flex-start;padding:32px 22px;}
    .cta-form{width:100%;}
    .cta-form input{min-width:0;width:100%;}
    .cta-form .btn{width:100%;}
  }

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--brand-deep);
    color:rgba(255,255,255,.72);
    padding:64px 0 28px;
    margin-top:0;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.7fr 1fr 1fr 1.2fr;
    gap:40px;
  }
  @media (max-width:1023px){
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  }
  @media (max-width:639px){
    .footer-grid{grid-template-columns:1fr;}
  }
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .footer-about{
    margin:0;
    max-width:34em;
    font-size:13.5px;
    line-height:1.85;
    color:rgba(255,255,255,.68);
  }
  .footer-col h3{
    margin:0 0 14px;
    font-size:15px;
    font-weight:600;
    color:#fff;
  }
  .footer-col ul{list-style:none;margin:0;padding:0;}
  .footer-col li{margin-bottom:10px;}
  .footer-col p{margin:0;font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.68);}
  .site-footer a{color:rgba(255,255,255,.72);transition:color .16s ease;}
  .site-footer a:hover{color:var(--amber);}
  .footer-bottom{
    margin-top:48px;
    padding-top:20px;
    border-top:1px solid rgba(255,255,255,.14);
    display:flex;
    flex-wrap:wrap;
    gap:10px 20px;
    justify-content:space-between;
    font-size:12.5px;
    color:rgba(255,255,255,.58);
  }