/* roulang page: index */
:root{
  --c-primary:#F4511E;
  --c-primary-2:#FF7A3D;
  --c-accent:#00B39A;
  --c-violet:#7C5CFF;
  --c-amber:#FFC53D;
  --c-bg:#FBF7F2;
  --c-surface:#FFFFFF;
  --c-ink:#14171F;
  --c-ink-2:#3A4050;
  --c-muted:#6B7280;
  --c-line:#E8E1D8;
  --c-soft:#FDF4EC;
  --grad-brand:linear-gradient(105deg,#F4511E 0%,#FF7A3D 42%,#7C5CFF 100%);
  --radius-card:20px;
  --radius-cover:28px;
  --radius-btn:999px;
  --shadow-1:0 2px 8px rgba(20,23,31,.06);
  --shadow-2:0 18px 40px -12px rgba(244,81,30,.28);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
  --font-num:"Oswald","Barlow Condensed","Arial Narrow",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.8;
  color:var(--c-ink-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:16px;background:#F0E9E0}
a{color:inherit;text-decoration:none}
p{margin:0 0 12px}
h1,h2,h3,h4{margin:0;color:var(--c-ink);letter-spacing:.01em}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;border:0;background:none}
:focus-visible{outline:3px solid rgba(244,81,30,.35);outline-offset:2px;border-radius:10px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1440px){.container{max-width:1240px}}
@media (max-width:1023px){.container{padding:0 24px}}
@media (max-width:639px){.container{padding:0 16px}}

/* ---------- 顶部细条 ---------- */
.topbar{background:var(--c-ink);color:#F3EDE6;font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:34px}
.topbar-text{display:inline-flex;align-items:center;gap:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-text i{color:var(--c-primary-2)}
.topbar-link{color:var(--c-amber);font-weight:600;white-space:nowrap}
.topbar-link:hover{color:#fff}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(251,247,242,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 14px 30px -24px rgba(20,23,31,.75)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:76px}
.brand{display:inline-flex;align-items:center;gap:9px;font-size:20px;font-weight:800;color:var(--c-ink);flex-shrink:0}
.brand-dot{width:12px;height:12px;border-radius:4px;background:var(--grad-brand);box-shadow:0 2px 8px rgba(244,81,30,.5)}
.brand-badge{font-size:11px;font-weight:700;color:#fff;background:var(--c-primary);border-radius:999px;padding:2px 9px;letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;font-size:15px;font-weight:600;color:var(--c-ink-2);
  padding:8px 12px;border-radius:10px;transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;border-radius:2px;
  background:var(--grad-brand);transform:translateX(-50%);transition:width .2s ease;
}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{width:58%}
.nav-link.is-active{color:var(--c-ink);font-weight:700;padding-left:20px}
.nav-link.is-active::before{
  content:"";position:absolute;left:6px;top:50%;width:6px;height:6px;border-radius:50%;
  background:var(--c-primary);transform:translateY(-50%);
}
.nav-link.is-active::after{width:58%}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink);font-size:17px;cursor:pointer;transition:border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn i{font-size:13px;transition:transform .2s ease}
.btn:hover i{transform:translateX(2px)}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 12px 26px -14px rgba(244,81,30,.85)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--shadow-2);filter:brightness(1.06);color:#fff}
.btn-ghost{background:#fff;border-color:var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{transform:translateY(-1px);border-color:var(--c-primary);color:var(--c-primary);box-shadow:var(--shadow-1)}
.btn-light{background:#fff;color:var(--c-ink)}
.btn-light:hover{transform:translateY(-1px);box-shadow:0 16px 30px -18px rgba(0,0,0,.6)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.7);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.button{background:var(--grad-brand);border-radius:var(--radius-btn);font-weight:600;border:0}
.button:hover{filter:brightness(1.06)}

/* ---------- 徽章 ---------- */
.stat-badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:10px 18px;border-radius:999px;
  background:var(--c-ink);color:#F3EDE6;font-size:12px;line-height:1.2;
}
.stat-badge i{color:var(--c-primary-2);font-size:14px}
.stat-badge b{font-family:var(--font-num);font-size:23px;font-weight:600;line-height:1;color:var(--c-amber);letter-spacing:.02em}
.stat-badge em{font-style:normal;font-size:12px;color:rgba(243,237,230,.72)}
.badge-outline{
  background:#fff;color:var(--c-ink);
  border:1px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad-brand);
  background-origin:border-box;background-clip:padding-box,border-box;
}
.badge-outline b{color:var(--c-ink)}
.badge-outline em{color:var(--c-muted)}
.badge-outline i{color:var(--c-primary)}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;color:var(--c-primary);
  background:rgba(244,81,30,.1);
}
.chip-teal{color:#00806F;background:rgba(0,179,154,.12)}
.chip-violet{color:#5B41D6;background:rgba(124,92,255,.12)}

/* ---------- Hero ---------- */
.hero{padding:44px 0 20px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:56px;align-items:center;min-height:560px}
.hero-copy .eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:16px}
.hero h1{
  font-size:clamp(30px,4vw,46px);line-height:1.2;font-weight:800;color:var(--c-ink);
  margin-bottom:18px;
}
.hero h1 .hl{
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:17px;line-height:1.85;color:var(--c-ink-2);max-width:34em;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px}
.hero-visual{
  position:relative;border-radius:var(--radius-cover);overflow:hidden;
  aspect-ratio:5/4;background:#F0E9E0;box-shadow:0 30px 60px -34px rgba(20,23,31,.55);
}
.hero-visual>img{width:100%;height:100%;object-fit:cover;border-radius:0}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(158deg,rgba(244,81,30,.26) 0%,rgba(124,92,255,.36) 100%);
}
.hero-mini{
  position:absolute;left:18px;bottom:18px;z-index:2;width:152px;
  background:#fff;border-radius:16px;padding:8px 8px 10px;
  box-shadow:0 20px 36px -18px rgba(0,0,0,.6);
}
.hero-mini img{border-radius:11px;aspect-ratio:4/3;object-fit:cover;width:100%}
.hero-mini span{display:block;margin-top:7px;text-align:center;font-size:12px;font-weight:700;color:var(--c-ink)}
.hero-badge{position:absolute;right:16px;top:16px;z-index:2}

/* ---------- 通用板块 ---------- */
.section{padding:64px 0}
@media (max-width:1023px){.section{padding:56px 0}}
@media (max-width:639px){.section{padding:40px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.16em;
  color:var(--c-primary);text-transform:uppercase;
}
.section-title{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;margin-top:6px}
.section-desc{margin:10px 0 0;font-size:14px;color:var(--c-muted);max-width:52em}
.head-link{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.head-link:hover{color:var(--c-ink)}
.head-link i{font-size:12px;transition:transform .2s ease}
.head-link:hover i{transform:translateX(3px)}

/* ---------- 合集目录 ---------- */
.toc-track{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:16px}
.toc-card{
  display:flex;flex-direction:column;gap:8px;
  padding:18px 16px;border-radius:18px;background:#fff;border:1px solid var(--c-line);
  box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.toc-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(244,81,30,.4)}
.toc-num{
  font-family:var(--font-num);font-size:20px;font-weight:600;line-height:1;
  color:var(--c-ink);background:rgba(255,197,61,.28);
  border-radius:9px;padding:6px 9px;align-self:flex-start;letter-spacing:.02em;
}
.toc-name{font-size:15px;font-weight:700;color:var(--c-ink)}
.toc-count{font-size:12px;color:var(--c-muted)}

/* ---------- 精选 ---------- */
.featured-grid{display:grid;grid-template-columns:1.32fr 1fr;gap:24px}
.featured-side{display:grid;gap:24px;grid-auto-rows:1fr}
.card{
  display:block;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.card-img{overflow:hidden;background:#F0E9E0;aspect-ratio:16/10}
.card-img img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .34s ease}
.card:hover .card-img img{transform:scale(1.04)}
.card-body{padding:20px 22px 22px}
.card-title{font-size:18px;font-weight:700;line-height:1.45;margin-bottom:8px}
.card:hover .card-title{color:var(--c-primary)}
.card-text{font-size:14px;line-height:1.7;color:var(--c-muted);margin:0 0 14px}
.card-meta{display:flex;align-items:center;gap:12px;font-size:12px;color:var(--c-muted)}
.card-meta .arrow{margin-left:auto;color:var(--c-primary);font-size:13px;transition:transform .2s ease}
.card:hover .card-meta .arrow{transform:translateX(3px)}
.card-lg .card-img{aspect-ratio:16/9}
.card-lg .card-title{font-size:22px}
.card-sm{display:grid;grid-template-columns:132px minmax(0,1fr);align-items:stretch}
.card-sm .card-img{aspect-ratio:1/1;height:100%}
.card-sm .card-body{padding:16px 18px}
.card-sm .card-title{font-size:16px;margin-bottom:6px}
.card-sm .card-text{font-size:13px;margin-bottom:10px}

/* ---------- 最新信息列表 ---------- */
.news-panel{background:#fff;border:1px solid var(--c-line);border-radius:24px;overflow:hidden;box-shadow:var(--shadow-1)}
.news-row{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto 20px;
  gap:18px;align-items:center;padding:22px 26px;
  border-bottom:1px solid var(--c-line);transition:background .2s ease;
}
.news-row:last-child{border-bottom:0}
.news-row:hover{background:var(--c-soft)}
.news-row:hover .news-arrow{transform:translateX(3px);color:var(--c-primary)}
.news-main h3{font-size:16px;font-weight:700;line-height:1.5;margin-bottom:6px}
.news-row:hover .news-main h3{color:var(--c-primary)}
.news-main p{margin:0;font-size:13px;line-height:1.7;color:var(--c-muted)}
.news-time{font-size:12px;color:var(--c-muted);white-space:nowrap}
.news-arrow{color:var(--c-line);font-size:13px;transition:transform .2s ease,color .2s ease;text-align:right}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  padding:64px 24px;text-align:center;color:var(--c-muted);font-size:14px;
}
.empty-state i{font-size:30px;color:var(--c-primary-2)}

/* ---------- 专题合集组 ---------- */
.topic-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.topic-card{
  position:relative;display:block;border-radius:var(--radius-cover);overflow:hidden;
  height:280px;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.topic-card:nth-child(2){height:300px}
.topic-card img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .4s ease}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.topic-card:hover img{transform:scale(1.05)}
.topic-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,23,31,0) 26%,rgba(20,23,31,.82) 100%);
}
.topic-inner{position:absolute;left:26px;right:26px;bottom:24px;z-index:2;color:#fff}
.topic-inner h3{color:#fff;font-size:22px;font-weight:700;margin-bottom:8px}
.topic-inner p{color:rgba(255,255,255,.82);font-size:13px;margin:0 0 12px;max-width:34em}
.topic-tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;color:#fff;background:rgba(255,255,255,.18);
  backdrop-filter:blur(4px);
}

/* ---------- 数值亮点 ---------- */
.metrics-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.metric{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:24px 22px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease;
}
.metric:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.metric i{font-size:18px;color:var(--c-primary);margin-bottom:12px;display:block}
.metric b{display:block;font-family:var(--font-num);font-size:32px;font-weight:600;line-height:1;color:var(--c-ink);letter-spacing:.02em}
.metric span{display:block;margin-top:8px;font-size:14px;font-weight:700;color:var(--c-ink-2)}
.metric small{display:block;margin-top:4px;font-size:12px;color:var(--c-muted)}

/* ---------- 横向轨道 ---------- */
.rail-wrap{position:relative}
.rail-wrap::after{
  content:"";position:absolute;top:0;right:0;width:64px;height:100%;pointer-events:none;
  background:linear-gradient(90deg,rgba(251,247,242,0),rgba(251,247,242,.96));
}
.rail{display:flex;gap:20px;overflow-x:auto;padding-bottom:14px;scroll-snap-type:x mandatory}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-thumb{background:var(--c-line);border-radius:999px}
.rail .card{flex:0 0 268px;scroll-snap-align:start}
.rail .card-img{aspect-ratio:4/3}
.rail .card-body{padding:16px 18px 18px}
.rail .card-title{font-size:15px;margin-bottom:10px}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:18px;
  box-shadow:var(--shadow-1);overflow:hidden;transition:border-color .2s ease;
}
.faq-item:hover{border-color:rgba(244,81,30,.35)}
.faq-item summary{
  display:flex;align-items:center;gap:14px;padding:18px 20px;cursor:pointer;
  font-size:16px;font-weight:700;color:var(--c-ink);list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-num{
  flex:0 0 32px;height:32px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:15px;font-weight:600;color:var(--c-ink);
  background:rgba(255,197,61,.28);transition:background .2s ease,color .2s ease;
}
.faq-item[open] .faq-num{background:var(--grad-brand);color:#fff}
.faq-item summary .faq-arrow{margin-left:auto;color:var(--c-muted);font-size:13px;transition:transform .2s ease}
.faq-item[open] summary .faq-arrow{transform:rotate(180deg);color:var(--c-primary)}
.faq-body{padding:0 20px 20px 66px;font-size:14px;line-height:1.85;color:var(--c-ink-2)}
.faq-body p{margin:0 0 8px}
.faq-body p:last-child{margin-bottom:0}
@media (max-width:639px){.faq-body{padding-left:20px}}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-cover);
  background:var(--grad-brand);color:#fff;
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  min-height:220px;
}
.cta-band::after{content:"";position:absolute;inset:0;background:rgba(20,23,31,.3)}
.cta-copy,.cta-actions{position:relative;z-index:2}
.cta-copy h2{color:#fff;font-size:clamp(22px,2.4vw,30px);font-weight:800;margin-bottom:10px}
.cta-copy p{margin:0;font-size:14px;color:rgba(255,255,255,.86);max-width:36em}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:rgba(243,237,230,.72);margin-top:72px;padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px}
.footer-brand{display:inline-flex;align-items:center;gap:9px;font-size:19px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-brand .brand-badge{background:var(--c-primary)}
.footer-about{font-size:13px;line-height:1.9;margin:0 0 16px;max-width:32em;color:rgba(243,237,230,.66)}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:13px;color:rgba(243,237,230,.7);transition:color .18s ease}
.footer-col a:hover{color:var(--c-primary-2)}
.footer-col p{font-size:13px;line-height:1.9;margin:0 0 10px;color:rgba(243,237,230,.66)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(243,237,230,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-grid{gap:36px}
  .toc-track{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:1023px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    padding:14px 24px 20px;background:#fff;border-bottom:1px solid var(--c-line);
    box-shadow:0 24px 40px -30px rgba(20,23,31,.7);margin-left:0;
  }
  .main-nav.is-open{display:flex}
  .nav-link.is-active{padding-left:12px}
  .nav-link{padding:12px 12px}
  .hero-grid{grid-template-columns:1fr;min-height:0;gap:34px}
  .hero{padding-top:32px}
  .hero-visual{max-width:640px;width:100%}
  .featured-grid{grid-template-columns:1fr}
  .featured-side{grid-template-columns:1fr 1fr}
  .metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .topic-grid{grid-template-columns:1fr}
  .topic-card,.topic-card:nth-child(2){height:260px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 32px}
  .cta-actions{justify-content:flex-start}
}
@media (max-width:768px){
  .header-inner{min-height:66px;gap:12px}
  .header-actions .btn-sm{display:none}
  .toc-track{
    display:flex;overflow-x:auto;gap:14px;padding-bottom:12px;scroll-snap-type:x mandatory;
  }
  .toc-card{flex:0 0 216px;scroll-snap-align:start}
  .news-row{grid-template-columns:minmax(0,1fr) 20px;gap:10px;padding:18px 18px}
  .news-row .chip{grid-column:1/-1;justify-self:start}
  .news-time{grid-column:1/-1;font-size:12px}
  .card-sm{grid-template-columns:1fr}
  .card-sm .card-img{aspect-ratio:16/10;height:auto}
  .hero-mini{width:124px}
}
@media (max-width:520px){
  .hero h1{font-size:clamp(26px,7vw,32px)}
  .hero-sub{font-size:15px}
  .hero-actions{width:100%}
  .hero-actions .btn{flex:1 1 100%}
  .hero-stats{gap:8px}
  .stat-badge{padding:8px 13px}
  .stat-badge b{font-size:19px}
  .featured-side{grid-template-columns:1fr}
  .metrics-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .cta-band{padding:30px 22px}
  .rail .card{flex:0 0 220px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.001ms !important;animation-duration:.001ms !important;scroll-behavior:auto !important}
  .card:hover,.toc-card:hover,.metric:hover,.topic-card:hover,.btn:hover{transform:none !important}
  .card:hover .card-img img,.topic-card:hover img{transform:none !important}
}

/* roulang page: category1 */
:root{
  --c-primary:#F4511E;
  --c-primary-2:#FF7A3D;
  --c-accent:#00B39A;
  --c-violet:#7C5CFF;
  --c-amber:#FFC53D;
  --c-bg:#FBF7F2;
  --c-surface:#FFFFFF;
  --c-ink:#14171F;
  --c-ink-2:#3A4050;
  --c-muted:#6B7280;
  --c-line:#E8E1D8;
  --c-soft:#FDF4EC;
  --grad-brand:linear-gradient(105deg,#F4511E 0%,#FF7A3D 42%,#7C5CFF 100%);
  --r-sm:12px;
  --r-md:20px;
  --r-lg:28px;
  --sh-1:0 2px 8px rgba(20,23,31,.06);
  --sh-2:0 18px 40px -12px rgba(244,81,30,.28);
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Barlow Condensed","Oswald","Noto 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(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .18s ease}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:3px solid rgba(244,81,30,.35);
  outline-offset:2px;
  border-radius:6px;
}
h1,h2,h3,h4{margin:0;line-height:1.3;color:var(--c-ink)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}
.section{padding:0 0 88px}
.section-head{margin-bottom:32px;max-width:760px}
.section-head h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;letter-spacing:.01em}
.section-head p{margin-top:10px;color:var(--c-muted);font-size:15px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--c-primary);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:3px;background:var(--grad-brand)}

/* ---------- 按钮 ---------- */
.button,.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-body);
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 26px;border-radius:999px;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
  background:none;color:var(--c-ink);
}
.btn-primary{
  background:var(--grad-brand);color:#fff;box-shadow:0 10px 24px -12px rgba(244,81,30,.6);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 32px -14px rgba(244,81,30,.75);color:#fff;filter:brightness(1.04)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:var(--c-surface);color:var(--c-ink);border-color:var(--c-line);box-shadow:var(--sh-1);
}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px)}
.btn-sm{padding:11px 20px;font-size:14px}
.btn-light{background:#fff;color:var(--c-ink);box-shadow:0 12px 28px -14px rgba(0,0,0,.5)}
.btn-light:hover{transform:translateY(-1px);color:var(--c-primary)}
.button{background:var(--grad-brand);color:#fff}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  font-size:13px;font-weight:600;line-height:1;
  background:var(--c-surface);color:var(--c-ink-2);
  border:1px solid transparent;
  background-image:linear-gradient(#fff,#fff),var(--grad-brand);
  background-origin:border-box;background-clip:padding-box,border-box;
}
.badge i{font-size:12px;color:var(--c-primary)}
.badge-solid{background:var(--c-ink);color:#fff;border:1px solid var(--c-ink);background-image:none}
.badge-tag{
  display:inline-block;padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  color:var(--c-primary);background:rgba(244,81,30,.1);
}
.badge-tag.is-violet{color:var(--c-violet);background:rgba(124,92,255,.12)}
.badge-tag.is-teal{color:var(--c-accent);background:rgba(0,179,154,.12)}
.stat{
  display:inline-flex;align-items:center;gap:10px;
  padding:10px 16px;border-radius:999px;
  background:var(--c-surface);border:1px solid var(--c-line);box-shadow:var(--sh-1);
}
.stat .num{
  font-family:var(--font-num);font-size:24px;font-weight:700;
  letter-spacing:.02em;line-height:1;color:var(--c-primary);
}
.stat .txt{font-size:12px;color:var(--c-muted);line-height:1.4}
.stat.is-dark{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.28);box-shadow:none}
.stat.is-dark .num{color:var(--c-amber)}
.stat.is-dark .txt{color:rgba(255,255,255,.82)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(251,247,242,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 26px -18px rgba(20,23,31,.45)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:74px}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:20px;font-weight:800;letter-spacing:.01em;color:var(--c-ink);
  white-space:nowrap;
}
.brand:hover{color:var(--c-primary)}
.brand-dot{
  width:12px;height:12px;border-radius:50%;
  background:var(--grad-brand);flex:0 0 auto;
  box-shadow:0 0 0 4px rgba(244,81,30,.14);
}
.brand-badge{
  font-size:11px;font-weight:700;line-height:1;
  padding:4px 8px;border-radius:999px;
  color:var(--c-primary);background:rgba(244,81,30,.1);
  border:1px solid rgba(244,81,30,.24);
  transform:translateY(-2px);
}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 14px;border-radius:10px;
  font-size:15px;font-weight:600;color:var(--c-ink-2);
  transition:color .18s ease,background .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:20%;right:20%;bottom:4px;height:2px;
  border-radius:2px;background:var(--grad-brand);
  transform:scaleX(0);transform-origin:center;transition:transform .2s ease;
}
.nav-link:hover{color:var(--c-primary);background:rgba(244,81,30,.06)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-primary);font-weight:700}
.nav-link.is-active::before{
  content:"";position:absolute;left:3px;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--c-primary);
}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;
  border:1px solid var(--c-line);background:var(--c-surface);
  color:var(--c-ink);font-size:17px;align-items:center;justify-content:center;
}
.nav-toggle:hover{color:var(--c-primary);border-color:var(--c-primary)}

/* ---------- 面包屑 ---------- */
.crumbs{padding:22px 0 0}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted)}
.crumbs li::after{content:"›";margin-left:8px;color:var(--c-line)}
.crumbs li:last-child::after{content:"";margin:0}
.crumbs a{color:var(--c-muted)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .is-current{color:var(--c-primary);font-weight:600}

/* ---------- 页面头 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  margin-top:20px;border-radius:var(--r-lg);
  padding:56px 48px 52px;
  color:#fff;
  background-image:
    linear-gradient(105deg,rgba(20,23,31,.86) 0%,rgba(244,81,30,.78) 55%,rgba(124,92,255,.72) 100%),
    url("/assets/images/backpic/back-2.png");
  background-size:cover,cover;
  background-position:center,center;
  box-shadow:var(--sh-2);
}
.page-hero h1{
  color:#fff;font-size:clamp(30px,4vw,46px);font-weight:800;line-height:1.2;
  max-width:760px;
}
.page-hero .lead{
  margin-top:18px;max-width:660px;
  font-size:16px;line-height:1.9;color:rgba(255,255,255,.9);
}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-actions .btn-ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.42);color:#fff}
.hero-actions .btn-ghost:hover{background:#fff;color:var(--c-primary);border-color:#fff}

/* ---------- 目录条 ---------- */
.directory{display:flex;flex-wrap:wrap;gap:12px;Margin-top:-26px;position:relative;z-index:2;padding:0 8px}
.dir-chip{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 20px;border-radius:999px;
  background:var(--c-surface);border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
  font-size:14px;font-weight:600;color:var(--c-ink-2);
  transition:transform .18s ease,box-shadow .2s ease,color .18s ease,border-color .18s ease;
}
.dir-chip .idx{
  font-family:var(--font-num);font-size:16px;font-weight:700;color:var(--c-primary);
  letter-spacing:.02em;
}
.dir-chip:hover{transform:translateY(-2px);color:var(--c-primary);border-color:rgba(244,81,30,.4);box-shadow:var(--sh-2)}

/* ---------- 交错图文列表 ---------- */
.topic-list{margin-top:8px}
.topic-row{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:48px;align-items:center;
  padding:36px 0;
  border-bottom:1px solid var(--c-line);
}
.topic-row:last-child{border-bottom:0}
.topic-row.is-flip .topic-figure{order:2}
.topic-figure{
  position:relative;overflow:hidden;border-radius:var(--r-md);
  box-shadow:var(--sh-1);background:#F0E9E0;
}
.topic-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  transition:transform .45s ease;
}
.topic-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,23,31,0) 55%,rgba(20,23,31,.35) 100%);
  opacity:0;transition:opacity .3s ease;
}
.topic-row:hover .topic-figure img{transform:scale(1.04)}
.topic-row:hover .topic-figure::after{opacity:1}
.topic-figure .fig-index{
  position:absolute;left:16px;top:16px;z-index:2;
  font-family:var(--font-num);font-size:18px;font-weight:700;letter-spacing:.04em;
  color:var(--c-ink);background:rgba(255,255,255,.94);
  padding:5px 12px;border-radius:999px;
  box-shadow:0 6px 16px -8px rgba(20,23,31,.5);
}
.topic-body h3{
  font-size:20px;font-weight:700;margin:14px 0 12px;line-height:1.45;
}
.topic-body h3 a:hover{color:var(--c-primary)}
.topic-body p{font-size:14px;line-height:1.85;color:var(--c-ink-2)}
.topic-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  margin-top:18px;font-size:13px;color:var(--c-muted);
}
.topic-meta span{display:inline-flex;align-items:center;gap:6px}
.topic-meta i{color:var(--c-primary);font-size:12px}
.topic-link{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:20px;font-size:14px;font-weight:600;color:var(--c-primary);
}
.topic-link i{transition:transform .2s ease}
.topic-link:hover i{transform:translateX(4px)}

/* ---------- 重点大卡 ---------- */
.focus-card{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  padding:52px 48px;color:#fff;min-height:320px;
  display:flex;flex-direction:column;justify-content:center;
  background-image:
    linear-gradient(105deg,rgba(20,23,31,.9) 0%,rgba(124,92,255,.62) 62%,rgba(244,81,30,.6) 100%),
    url("/assets/images/backpic/back-1.png");
  background-size:cover,cover;
  background-position:center,center;
  box-shadow:var(--sh-2);
}
.focus-card h2{
  color:#fff;font-size:clamp(24px,2.8vw,34px);font-weight:800;max-width:640px;line-height:1.3;
}
.focus-card p{
  margin-top:16px;max-width:600px;font-size:15px;line-height:1.9;color:rgba(255,255,255,.88);
}
.focus-card .focus-foot{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:28px}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);box-shadow:var(--sh-1);
  overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item[open]{border-color:rgba(244,81,30,.35);box-shadow:0 16px 34px -18px rgba(244,81,30,.4)}
.faq-item summary{
  display:flex;align-items:center;gap:16px;
  padding:20px 24px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-num{
  flex:0 0 auto;width:32px;height:32px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:16px;font-weight:700;
  color:var(--c-primary);background:rgba(244,81,30,.1);
  transition:background .2s ease,color .2s ease;
}
.faq-item[open] .faq-num{background:var(--grad-brand);color:#fff}
.faq-arrow{margin-left:auto;color:var(--c-muted);font-size:13px;transition:transform .2s ease}
.faq-item[open] .faq-arrow{transform:rotate(180deg);color:var(--c-primary)}
.faq-answer{
  padding:0 24px 22px 72px;font-size:14px;line-height:1.9;color:var(--c-ink-2);
  background:var(--c-soft);
  margin:0 0 0 0;padding-top:16px;padding-bottom:20px;
  border-top:1px solid rgba(232,225,216,.9);
}

/* ---------- 交叉分类 ---------- */
.cross-links{display:flex;flex-wrap:wrap;gap:12px}
.cross-chip{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 22px;border-radius:999px;
  background:var(--c-surface);border:1px solid var(--c-line);
  font-size:14px;font-weight:600;color:var(--c-ink-2);
  box-shadow:var(--sh-1);
  transition:transform .18s ease,color .18s ease,border-color .18s ease,box-shadow .2s ease;
}
.cross-chip i{color:var(--c-primary);font-size:12px}
.cross-chip:hover{transform:translateY(-2px);color:var(--c-primary);border-color:rgba(244,81,30,.4);box-shadow:var(--sh-2)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  padding:48px;color:#fff;
  background-image:linear-gradient(105deg,rgba(20,23,31,.82) 0%,rgba(244,81,30,.72) 58%,rgba(124,92,255,.7) 100%),
    var(--grad-brand);
  box-shadow:var(--sh-2);
  display:flex;flex-wrap:wrap;align-items:center;gap:32px;justify-content:space-between;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);font-weight:800;max-width:520px}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.88);max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:40px;background:var(--c-ink);color:rgba(243,237,230,.78);
  padding:64px 0 0;font-size:14px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;color:#fff;margin-bottom:16px;
}
.footer-brand:hover{color:var(--c-primary-2)}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.04em}
.footer-col p{line-height:1.95;margin-bottom:10px;color:rgba(243,237,230,.7)}
.footer-about{color:rgba(243,237,230,.72);line-height:1.9;margin-bottom:12px;max-width:340px}
.footer-col ul li{margin-bottom:8px}
.footer-col ul a{color:rgba(243,237,230,.72);line-height:2}
.footer-col ul a:hover{color:var(--c-primary-2)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:44px;padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(243,237,230,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding-bottom:64px}
  .header-inner{min-height:68px;gap:14px}
  .main-nav{
    position:absolute;left:16px;right:16px;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;gap:4px;
    background:var(--c-surface);border:1px solid var(--c-line);
    border-radius:var(--r-md);box-shadow:0 24px 48px -24px rgba(20,23,31,.45);
    padding:12px;display:none;margin-left:0;
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:13px 14px;font-size:15px;border-radius:12px}
  .nav-link::after{display:none}
  .nav-link.is-active{background:rgba(244,81,30,.08)}
  .nav-toggle{display:inline-flex}
  .header-actions .btn-primary{display:none}
  .topic-row{grid-template-columns:1fr;gap:24px;padding:30px 0}
  .topic-row.is-flip .topic-figure{order:0}
  .page-hero{padding:44px 28px}
  .focus-card{padding:40px 28px}
  .cta-band{padding:36px 28px;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .faq-answer{padding-left:24px}
}
@media (max-width:640px){
  body{font-size:15px}
  .container{padding:0 16px}
  .section{padding-bottom:48px}
  .brand{font-size:18px}
  .page-hero{padding:34px 20px;border-radius:var(--r-md);margin-top:16px}
  .page-hero .lead{font-size:15px}
  .hero-badges{gap:8px}
  .stat{padding:8px 12px}
  .stat .num{font-size:20px}
  .directory{margin-top:-18px;padding:0;gap:8px}
  .dir-chip{padding:10px 14px;font-size:13px}
  .topic-body h3{font-size:18px}
  .focus-card{padding:32px 20px;border-radius:var(--r-md)}
  .cta-band{padding:30px 20px;border-radius:var(--r-md)}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .site-footer{padding-top:44px}
  .footer-bottom{flex-direction:column;gap:6px}
  .faq-item summary{padding:16px;gap:12px;font-size:15px}
  .faq-answer{padding:14px 16px 18px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .topic-row:hover .topic-figure img{transform:none}
}

/* roulang page: article */
:root{
  --c-primary:#F4511E;
  --c-primary-2:#FF7A3D;
  --c-accent:#00B39A;
  --c-violet:#7C5CFF;
  --c-amber:#FFC53D;
  --grad-brand:linear-gradient(105deg,#F4511E 0%,#FF7A3D 42%,#7C5CFF 100%);
  --c-bg:#FBF7F2;
  --c-surface:#FFFFFF;
  --c-ink:#14171F;
  --c-ink-2:#3A4050;
  --c-muted:#6B7280;
  --c-line:#E8E1D8;
  --c-soft:#FDF4EC;
  --r-card:20px;
  --r-cover:28px;
  --r-img:16px;
  --r-pill:999px;
  --shadow-1:0 2px 8px rgba(20,23,31,.06);
  --shadow-2:0 18px 40px -12px rgba(244,81,30,.28);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;background:transparent}
a:hover,a:focus{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit;cursor:pointer}
input,textarea{font-family:inherit}
::selection{background:rgba(244,81,30,.18)}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){.container{max-width:1240px}}
@media (max-width:640px){.container{padding:0 16px}}

/* ============ 顶部阅读进度 ============ */
.read-progress{
  position:fixed;top:0;left:0;height:3px;width:0;
  background:var(--grad-brand);z-index:90;border-radius:0 3px 3px 0;
  transition:width .12s linear;
}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(251,247,242,.94);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease,background .22s ease;
}
.site-header.is-stuck{
  background:rgba(255,255,255,.97);
  box-shadow:0 14px 34px -22px rgba(20,23,31,.55);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:74px;
}
.brand{
  display:inline-flex;align-items:center;gap:9px;
  font-size:19px;font-weight:800;letter-spacing:.01em;color:var(--c-ink);
  white-space:nowrap;flex:0 0 auto;
}
.brand-dot{
  width:13px;height:13px;border-radius:5px;background:var(--grad-brand);
  display:inline-block;flex:0 0 auto;
  box-shadow:0 3px 10px -3px rgba(244,81,30,.8);
}
.brand-badge{
  font-size:11px;font-weight:700;line-height:1;padding:4px 8px;border-radius:var(--r-pill);
  color:#B03A14;background:linear-gradient(105deg,rgba(244,81,30,.16),rgba(124,92,255,.16));
  border:1px solid rgba(244,81,30,.3);letter-spacing:.04em;
}
.main-nav{display:flex;align-items:center;gap:4px;flex-wrap:nowrap}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 12px;border-radius:10px;
  font-size:15px;font-weight:600;color:var(--c-ink-2);
  transition:color .18s ease,background .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:3px;height:2px;width:0;
  background:var(--grad-brand);border-radius:2px;transform:translateX(-50%);
  transition:width .2s ease;
}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{width:58%}
.nav-link.is-active{color:var(--c-ink);font-weight:700}
.nav-link.is-active::before{
  content:"";display:inline-block;width:6px;height:6px;border-radius:50%;
  background:var(--c-primary);margin-right:6px;vertical-align:2px;
}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink);
  align-items:center;justify-content:center;font-size:17px;
  transition:border-color .18s ease,color .18s ease;
}
.nav-toggle:hover{border-color:rgba(244,81,30,.45);color:var(--c-primary)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;border-radius:var(--r-pill);
  padding:12px 24px;font-size:15px;font-weight:600;line-height:1.2;
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,color .18s ease,border-color .18s ease;
}
.btn i{font-size:13px;transition:transform .18s ease}
.btn:hover i{transform:translateX(2px)}
.btn-primary{
  background:var(--grad-brand);color:#fff;
  box-shadow:0 12px 26px -14px rgba(244,81,30,.9);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px)}
.btn-ghost{
  background:#fff;color:var(--c-ink);border:1px solid var(--c-line);
}
.btn-ghost:hover{border-color:rgba(244,81,30,.45);color:var(--c-primary);transform:translateY(-1px)}
.btn-light{background:#fff;color:#B03A14}
.btn-light:hover{filter:brightness(1.04);transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff;transform:translateY(-1px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn:focus-visible,.nav-link:focus-visible,.nav-toggle:focus-visible,a:focus-visible,button:focus-visible{
  outline:3px solid rgba(244,81,30,.35);outline-offset:2px;border-radius:10px;
}

/* ============ 面包屑 ============ */
.crumb-bar{padding:26px 0 4px}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-muted);line-height:1.7;
}
.breadcrumb a{color:var(--c-muted);transition:color .16s ease}
.breadcrumb a:hover{color:var(--c-primary)}
.bc-sep{color:#C9BFB3}
.bc-cur{color:var(--c-primary);font-weight:600}

/* ============ 文章主体 ============ */
.article-wrap{padding:8px 0 0}
.article-grid{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;
  gap:52px;align-items:start;padding:8px 0 64px;
}
.article-main{max-width:760px;min-width:0}
.article-head{margin-bottom:26px}
.article-title{
  font-size:clamp(26px,3.4vw,40px);line-height:1.32;font-weight:800;
  letter-spacing:-.01em;color:var(--c-ink);margin:16px 0 18px;
  word-break:break-word;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 22px;
  font-size:13px;color:var(--c-muted);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--c-primary-2);font-size:13px}
.article-meta b{font-family:"Barlow Condensed",system-ui,sans-serif;font-size:16px;font-weight:600;color:var(--c-ink);letter-spacing:.02em}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;line-height:1.6;
  background:#fff;color:var(--c-ink-2);border:1px solid var(--c-line);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
a.tag:hover{border-color:rgba(244,81,30,.45);color:var(--c-primary)}
.tag-primary{
  background:linear-gradient(105deg,rgba(244,81,30,.13),rgba(124,92,255,.13));
  border-color:rgba(244,81,30,.3);color:#B03A14;
}

/* 正文排版 */
.article-body{
  font-size:16px;line-height:1.9;color:var(--c-ink-2);
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  position:relative;
  font-size:clamp(21px,2.2vw,26px);line-height:1.42;font-weight:700;
  color:var(--c-ink);margin:44px 0 16px;padding-left:16px;
  scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:4px;background:var(--grad-brand);
}
.article-body h3{
  font-size:19px;line-height:1.5;font-weight:700;color:var(--c-ink);
  margin:32px 0 12px;scroll-margin-top:96px;
}
.article-body h4{font-size:17px;font-weight:700;color:var(--c-ink);margin:24px 0 10px}
.article-body p{margin:0 0 18px}
.article-body a{color:var(--c-primary);border-bottom:1px dashed rgba(244,81,30,.5);transition:border-color .16s ease}
.article-body a:hover{border-bottom-style:solid;border-bottom-color:var(--c-primary)}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:6px}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:12px;
  width:8px;height:8px;border-radius:2px;background:var(--c-primary);
}
.article-body ol{counter-reset:olc}
.article-body ol li{position:relative;padding-left:30px;margin-bottom:10px;counter-increment:olc}
.article-body ol li::before{
  content:counter(olc);
  position:absolute;left:0;top:3px;
  width:20px;height:20px;border-radius:6px;
  background:rgba(244,81,30,.13);color:var(--c-primary);
  font-size:12px;font-weight:700;line-height:20px;text-align:center;
}
.article-body blockquote{
  position:relative;margin:24px 0;padding:18px 22px 18px 26px;
  background:var(--c-soft);border-radius:0 16px 16px 0;
  color:var(--c-ink);font-size:17px;line-height:1.8;
}
.article-body blockquote::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  border-radius:4px;background:var(--grad-brand);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:24px auto;box-shadow:var(--shadow-1)}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:8px}
.article-body hr{border:none;height:1px;background:var(--c-line);margin:32px 0}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;
  border:1px solid var(--c-line);border-radius:var(--r-img);
  overflow:hidden;margin:24px 0;font-size:14px;line-height:1.7;
}
.article-body th{
  background:var(--c-soft);color:var(--c-ink);text-align:left;
  padding:12px 16px;font-weight:700;border-bottom:1px solid var(--c-line);
}
.article-body td{
  padding:12px 16px;border-top:1px solid var(--c-line);color:var(--c-ink-2);
}
.article-body tbody tr:nth-child(even) td{background:#FCF8F4}
.article-body strong{color:var(--c-ink);font-weight:700}

/* 空态 */
.empty-state{
  text-align:center;padding:56px 24px;background:#fff;
  border:1px dashed var(--c-line);border-radius:var(--r-card);
}
.empty-state i{font-size:34px;color:var(--c-primary-2)}
.empty-state h2{
  font-size:20px;font-weight:700;margin:16px 0 10px;padding-left:0;
}
.empty-state h2::before{display:none}
.empty-state p{font-size:14px;color:var(--c-muted);margin:0 0 20px}

/* 文末 */
.article-foot{
  margin-top:38px;padding-top:24px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:16px 20px;align-items:center;justify-content:space-between;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.back-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-ink-2);
  transition:color .16s ease,gap .16s ease;
}
.back-link:hover{color:var(--c-primary);gap:10px}

/* 侧栏 */
.article-side{
  display:flex;flex-direction:column;gap:20px;
  position:sticky;top:96px;align-self:start;
}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow-1);
}
.side-title{
  display:flex;align-items:center;gap:9px;
  font-size:15px;font-weight:700;color:var(--c-ink);margin:0 0 14px;
}
.side-title::before{
  content:"";width:5px;height:15px;border-radius:3px;background:var(--grad-brand);
}
.toc-list{display:flex;flex-direction:column;gap:3px;max-height:340px;overflow-y:auto;padding-right:2px}
.toc-list::-webkit-scrollbar{width:4px}
.toc-list::-webkit-scrollbar-thumb{background:var(--c-line);border-radius:4px}
.toc-link{
  display:block;font-size:13.5px;line-height:1.6;color:var(--c-ink-2);
  padding:7px 10px;border-radius:9px;border-left:2px solid transparent;
  transition:background .16s ease,color .16s ease,border-color .16s ease;
}
.toc-link:hover{background:var(--c-soft);color:var(--c-primary);border-left-color:var(--c-primary)}
.toc-link.toc-sub{padding-left:22px;font-size:13px;color:var(--c-muted)}
.toc-empty{font-size:13px;color:var(--c-muted);margin:0}

.stat-badges{display:flex;flex-direction:column;gap:10px}
.stat-badge{
  display:flex;align-items:center;gap:10px;
  padding:10px 14px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;line-height:1.4;
}
.stat-badge i{font-size:13px;opacity:.85}
.stat-badge b{
  font-family:"Barlow Condensed",system-ui,sans-serif;
  font-size:22px;font-weight:600;line-height:1;letter-spacing:.02em;
}
.stat-badge.dark{background:var(--c-ink);color:#F3EDE6}
.stat-badge.dark b{color:var(--c-amber)}
.stat-badge.light{
  background:linear-gradient(#fff,#fff) padding-box,var(--grad-brand) border-box;
  border:1px solid transparent;color:var(--c-ink-2);
}
.stat-badge.light b{color:var(--c-primary)}

.side-list{display:flex;flex-direction:column;gap:2px}
.side-list a{
  display:flex;align-items:flex-start;gap:10px;
  padding:9px 8px;border-radius:10px;
  font-size:13.5px;line-height:1.6;color:var(--c-ink-2);
  transition:background .16s ease,color .16s ease;
}
.side-list a:hover{background:var(--c-soft);color:var(--c-primary)}
.side-num{
  flex:0 0 auto;width:19px;height:19px;border-radius:6px;margin-top:1px;
  background:rgba(244,81,30,.13);color:var(--c-primary);
  font-family:"Barlow Condensed",system-ui,sans-serif;
  font-size:12px;font-weight:700;line-height:19px;text-align:center;
}
.side-cta{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  background:var(--grad-brand);padding:22px;color:#fff;
}
.side-cta::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(20,23,31,.42),rgba(20,23,31,.16));
}
.side-cta > *{position:relative;z-index:1}
.side-cta h3{font-size:17px;font-weight:700;color:#fff;margin:0 0 8px;line-height:1.4}
.side-cta p{font-size:13px;line-height:1.7;color:rgba(255,255,255,.9);margin:0 0 16px}
.side-cta .btn{width:100%;justify-content:center;font-size:14px;padding:11px 16px}

/* ============ 相关推荐 ============ */
.related-section{padding:4px 0 76px}
.section-head{max-width:720px;margin-bottom:28px}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.12em;
  color:var(--c-primary);text-transform:uppercase;margin-bottom:10px;
}
.section-kicker::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--grad-brand)}
.section-head h2{
  font-size:clamp(23px,2.6vw,31px);line-height:1.34;font-weight:700;
  color:var(--c-ink);margin:0 0 10px;
}
.section-head p{font-size:15px;line-height:1.8;color:var(--c-muted);margin:0}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rcard{
  display:block;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(244,81,30,.28)}
.rcard-img{position:relative;aspect-ratio:4/3;overflow:hidden;background:#F0E9E0}
.rcard-img img{width:100%;height:100%;object-fit:cover;transition:transform .28s ease}
.rcard:hover .rcard-img img{transform:scale(1.04)}
.rcard-body{padding:16px 18px 20px}
.rcard-body h3{
  font-size:16px;font-weight:700;line-height:1.5;color:var(--c-ink);
  margin:10px 0 8px;
}
.rcard-body p{font-size:13px;line-height:1.7;color:var(--c-muted);margin:0}
.rcard-more{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:12px;font-size:13px;font-weight:600;color:var(--c-primary);
}
.rcard-more i{font-size:11px;transition:transform .18s ease}
.rcard:hover .rcard-more i{transform:translateX(3px)}

/* ============ 收尾 CTA ============ */
.cta-band{padding:0 0 82px}
.cta-inner{
  position:relative;overflow:hidden;border-radius:var(--r-cover);
  background:var(--grad-brand);padding:48px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;
  gap:32px;align-items:center;
}
.cta-inner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(20,23,31,.62) 0%,rgba(20,23,31,.34) 60%,rgba(20,23,31,.18) 100%);
}
.cta-inner > *{position:relative;z-index:1}
.cta-copy h2{
  font-size:clamp(23px,2.6vw,30px);line-height:1.34;font-weight:800;
  color:#fff;margin:0 0 12px;
}
.cta-copy p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.86);margin:0;max-width:54ch}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.cta-badge{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:18px;padding:8px 16px;border-radius:var(--r-pill);
  background:rgba(20,23,31,.55);border:1px solid rgba(255,255,255,.24);
  color:#fff;font-size:12.5px;font-weight:600;
}
.cta-badge b{
  font-family:"Barlow Condensed",system-ui,sans-serif;
  font-size:20px;color:var(--c-amber);line-height:1;
}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:#F3EDE6;padding:64px 0 0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;padding-bottom:48px;
}
.footer-brand{
  display:flex;align-items:center;gap:9px;
  font-size:18px;font-weight:800;color:#fff;margin-bottom:14px;
}
.footer-brand .brand-badge{
  color:#FFC0A6;background:rgba(244,81,30,.18);border-color:rgba(244,81,30,.42);
}
.footer-about{
  font-size:13.5px;line-height:1.85;color:rgba(243,237,230,.7);
  margin:0 0 12px;
}
.footer-col h4{
  font-size:14px;font-weight:700;color:#fff;margin:0 0 12px;line-height:1.6;
}
.footer-col ul{display:flex;flex-direction:column;gap:2px}
.footer-col li a{
  display:inline-block;font-size:14px;line-height:2;
  color:rgba(243,237,230,.72);
  transition:color .16s ease,transform .16s ease;
}
.footer-col li a:hover{color:var(--c-primary-2);transform:translateX(2px)}
.footer-col p{font-size:13.5px;line-height:1.85;color:rgba(243,237,230,.68);margin:0 0 10px}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;
  padding:18px 0;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:rgba(243,237,230,.55);line-height:1.8;
}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .article-grid{gap:36px;grid-template-columns:minmax(0,1fr) 300px}
}
@media (max-width:1024px){
  .article-grid{grid-template-columns:minmax(0,1fr);gap:38px;padding-bottom:52px}
  .article-main{max-width:100%}
  .article-side{position:static;top:auto}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-inner{grid-template-columns:minmax(0,1fr);padding:40px;gap:24px}
}
@media (max-width:900px){
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border-bottom:1px solid var(--c-line);
    padding:12px 20px 18px;display:none;
    box-shadow:0 22px 44px -26px rgba(20,23,31,.55);
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:12px 10px;border-radius:10px}
  .nav-link::after{display:none}
  .nav-link:hover{background:var(--c-soft)}
  .nav-toggle{display:inline-flex}
  .header-inner{min-height:66px;gap:12px}
  .brand{font-size:17px}
}
@media (max-width:768px){
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .cta-inner{padding:32px 26px}
  .article-body{font-size:15.5px}
  .article-body h2{margin-top:36px}
  .section-head h2{font-size:23px}
}
@media (max-width:640px){
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;padding-bottom:36px}
  .site-footer{padding-top:48px}
  .crumb-bar{padding:18px 0 0}
  .article-grid{padding-bottom:40px;gap:32px}
  .article-title{margin:14px 0 14px}
  .article-meta{gap:6px 16px;font-size:12.5px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .article-foot{flex-direction:column;align-items:flex-start}
  .btn{padding:11px 20px;font-size:14px}
  .btn-sm{padding:9px 13px;font-size:12.5px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:520px){
  .header-actions .btn-sm .btn-label{display:none}
  .header-actions .btn-sm{padding:10px 12px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .side-card{padding:16px}
  .side-cta{padding:18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .rcard:hover,.btn:hover,.footer-col li a:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --c-primary:#F4511E;
  --c-primary-2:#FF7A3D;
  --c-accent:#00B39A;
  --c-violet:#7C5CFF;
  --c-amber:#FFC53D;
  --grad-brand:linear-gradient(105deg,#F4511E 0%,#FF7A3D 42%,#7C5CFF 100%);
  --c-bg:#FBF7F2;
  --c-surface:#FFFFFF;
  --c-ink:#14171F;
  --c-ink-2:#3A4050;
  --c-muted:#6B7280;
  --c-line:#E8E1D8;
  --c-warm:#FDF4EC;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(20,23,31,.06);
  --sh-2:0 18px 40px -12px rgba(244,81,30,.28);
  --container:1200px;
  --num-font:"Barlow Condensed","Oswald",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;line-height:1.8;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body,p,div,span,li{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(244,81,30,.35);outline-offset:3px;border-radius:6px}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--c-ink);line-height:1.3}
h1{font-size:clamp(30px,4vw,46px);line-height:1.2;font-weight:800;letter-spacing:-.01em}
h2{font-size:clamp(24px,2.6vw,32px);font-weight:700}
h3{font-size:20px;font-weight:700}
p{margin:0 0 14px}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:16px;padding-right:16px}
@media (min-width:640px){.container{padding-left:24px;padding-right:24px}}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px}}
@media (min-width:1440px){:root{--container:1240px}}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(251,247,242,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px -18px rgba(20,23,31,.35);background:rgba(255,255,255,.96)}
.header-inner{
  position:relative;
  display:flex;align-items:center;gap:16px;
  min-height:72px;
}
.brand{
  display:inline-flex;align-items:center;gap:9px;
  font-weight:800;font-size:19px;letter-spacing:-.01em;color:var(--c-ink);
  white-space:nowrap;flex:none;
}
.brand-dot{
  width:12px;height:12px;border-radius:50%;
  background:var(--grad-brand);
  box-shadow:0 0 0 4px rgba(244,81,30,.14);
  flex:none;
}
.brand-badge{
  font-size:11px;font-weight:700;letter-spacing:.08em;
  color:var(--c-primary);
  border:1px solid rgba(244,81,30,.38);
  border-radius:var(--r-pill);
  padding:1px 8px 2px;
  background:rgba(244,81,30,.07);
  transform:translateY(-1px);
}
.main-nav{display:flex;align-items:center;gap:22px;margin-left:auto}
.nav-link{
  position:relative;
  font-size:15px;font-weight:600;color:var(--c-ink-2);
  padding:8px 2px;line-height:1.4;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:20%;right:20%;bottom:-2px;height:2px;
  background:var(--grad-brand);border-radius:2px;
  transform:scaleX(0);transform-origin:center;
  transition:transform .22s ease;
}
.nav-link:hover,.nav-link:focus-visible{color:var(--c-primary)}
.nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-ink);font-weight:800;padding-left:15px}
.nav-link.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--c-primary);
}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:8px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--c-line);background:var(--c-surface);color:var(--c-ink);
  font-size:16px;transition:border-color .2s,color .2s;
}
.nav-toggle:hover{border-color:rgba(244,81,30,.5);color:var(--c-primary)}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:1px solid transparent;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  padding:13px 24px;text-align:center;
  transition:transform .18s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  cursor:pointer;
}
.btn i{font-size:13px;transition:transform .18s ease}
.btn:hover i{transform:translateX(3px)}
.btn-primary{
  background:var(--grad-brand);color:#fff;
  box-shadow:0 10px 24px -12px rgba(244,81,30,.75);
}
.btn-primary:hover,.btn-primary:focus-visible{transform:translateY(-1px);box-shadow:0 16px 30px -12px rgba(244,81,30,.8);color:#fff}
.btn-sm{padding:11px 18px;font-size:14px}
.btn-ghost{
  background:var(--c-surface);color:var(--c-ink);
  border-color:var(--c-line);
}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--c-ink);box-shadow:0 10px 24px -16px rgba(0,0,0,.6)}
.btn-light:hover{transform:translateY(-1px);color:var(--c-primary)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px)}

/* ============ BREADCRUMB / PAGE HERO ============ */
.page-hero{padding-top:28px}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--c-muted);margin-bottom:20px;
}
.breadcrumb a{color:var(--c-muted);border-bottom:1px dashed transparent}
.breadcrumb a:hover{color:var(--c-primary);border-bottom-color:rgba(244,81,30,.5)}
.breadcrumb .sep{color:rgba(107,114,128,.55)}
.breadcrumb .current{color:var(--c-primary);font-weight:700}
.hero-panel{
  position:relative;overflow:hidden;
  border-radius:var(--r-xl);
  background:var(--c-surface);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
  padding:34px 26px 30px;
}
.hero-panel::before{
  content:"";position:absolute;inset:-40% -10% auto auto;width:520px;height:520px;
  background:radial-gradient(circle at center,rgba(124,92,255,.14),rgba(244,81,30,.10) 46%,transparent 70%);
  pointer-events:none;
}
.hero-panel>*{position:relative}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--c-primary);
  background:rgba(244,81,30,.08);
  border:1px solid rgba(244,81,30,.22);
  border-radius:var(--r-pill);
  padding:5px 13px;margin-bottom:16px;
}
.hero-panel h1{max-width:760px;margin-bottom:14px}
.hero-lead{
  max-width:660px;font-size:16px;line-height:1.85;color:var(--c-ink-2);margin-bottom:24px;
}
.stats-row{display:flex;flex-wrap:wrap;gap:12px}
.badge{
  display:inline-flex;align-items:center;gap:9px;
  border-radius:var(--r-pill);
  padding:9px 18px 9px 14px;
  font-size:12px;line-height:1.2;white-space:nowrap;
}
.badge i{font-size:13px}
.badge-num{
  font-family:var(--num-font);
  font-size:22px;font-weight:700;letter-spacing:.02em;line-height:1;
}
.badge-dark{background:var(--c-ink);color:#F3EDE6}
.badge-dark .badge-num{color:var(--c-amber)}
.badge-dark i{color:var(--c-amber)}
.badge-line{
  background:linear-gradient(#fff,#fff) padding-box,var(--grad-brand) border-box;
  border:1px solid transparent;color:var(--c-ink-2);
}
.badge-line .badge-num{color:var(--c-primary)}
.badge-line i{color:var(--c-accent)}

/* ============ COVER BANNER ============ */
.banner-wrap{margin-top:28px}
.cover-banner{
  position:relative;overflow:hidden;
  border-radius:var(--r-xl);
  min-height:240px;
  display:flex;align-items:flex-end;
  background-color:#F0E9E0;
  background-image:linear-gradient(90deg,rgba(20,23,31,.82) 0%,rgba(20,23,31,.55) 48%,rgba(20,23,31,.12) 100%),url(/assets/images/backpic/back-2.png);
  background-size:cover;
  background-position:center;
  box-shadow:var(--sh-1);
}
.cover-banner .banner-inner{padding:30px 26px;color:#fff;max-width:640px}
.cover-banner .banner-tag{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;font-weight:700;letter-spacing:.1em;
  padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.34);
  color:#fff;margin-bottom:12px;
}
.cover-banner h2{color:#fff;font-size:clamp(21px,2.4vw,27px);margin-bottom:8px}
.cover-banner p{color:rgba(255,255,255,.86);font-size:14.5px;line-height:1.75;margin:0;max-width:560px}

/* ============ SECTION ============ */
.section{padding-top:56px}
@media (min-width:768px){.section{padding-top:68px}}
@media (min-width:1024px){.section{padding-top:84px}}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:14px;margin-bottom:26px;
}
.section-head h2{position:relative;padding-left:16px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:4px;background:var(--grad-brand);
}
.section-sub{font-size:14px;color:var(--c-muted);margin:0;max-width:520px;line-height:1.7}
.section-link{
  font-size:14px;font-weight:700;color:var(--c-primary);
  display:inline-flex;align-items:center;gap:6px;
}
.section-link i{font-size:12px;transition:transform .18s ease}
.section-link:hover i{transform:translateX(3px)}

/* ============ FILTER CHIPS ============ */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:14px;border-radius:var(--r-lg);
  background:var(--c-surface);border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:var(--c-ink-2);
  background:#F6F1EA;border:1px solid transparent;
  transition:background .2s,color .2s,border-color .2s,transform .18s;
}
.chip span{
  font-family:var(--num-font);font-size:14px;color:var(--c-primary);letter-spacing:.04em;
}
.chip:hover{background:rgba(244,81,30,.1);color:var(--c-primary);border-color:rgba(244,81,30,.3);transform:translateY(-1px)}
.chip.is-on{background:var(--c-ink);color:#F3EDE6;border-color:var(--c-ink)}
.chip.is-on span{color:var(--c-amber)}

/* ============ GUIDE GRID (two columns) ============ */
.guide-grid{margin-left:-12px;margin-right:-12px;margin-bottom:-24px}
.guide-cell{
  padding-left:12px;padding-right:12px;margin-bottom:24px;
}
.guide-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(244,81,30,.35)}
.guide-media{
  position:relative;overflow:hidden;
  aspect-ratio:16/10;background:#F0E9E0;
}
.guide-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .28s ease;
}
.guide-card:hover .guide-media img{transform:scale(1.04)}
.guide-media .tag-float{
  position:absolute;left:12px;top:12px;
  font-size:11.5px;font-weight:700;letter-spacing:.06em;
  color:#fff;background:rgba(20,23,31,.78);
  border:1px solid rgba(255,255,255,.22);
  border-radius:var(--r-pill);padding:4px 11px;
  backdrop-filter:blur(4px);
}
.guide-body{padding:20px 20px 18px;display:flex;flex-direction:column;flex:1}
.guide-body h3{font-size:18px;line-height:1.45;margin-bottom:10px}
.guide-card:hover .guide-body h3{color:var(--c-primary)}
.guide-body .excerpt{
  font-size:14px;line-height:1.75;color:var(--c-ink-2);margin-bottom:16px;
}
.card-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;border-top:1px dashed var(--c-line);
  font-size:12.5px;color:var(--c-muted);
}
.card-meta .meta-left{display:inline-flex;align-items:center;gap:12px;flex-wrap:wrap}
.card-meta i{font-size:11.5px;color:var(--c-muted)}
.meta-arrow{
  width:30px;height:30px;border-radius:50%;flex:none;
  display:inline-flex;align-items:center;justify-content:center;
  background:#F6F1EA;color:var(--c-ink-2);
  transition:background .2s,color .2s,transform .2s;
}
.guide-card:hover .meta-arrow{background:var(--grad-brand);color:#fff;transform:translateX(2px)}

/* ============ SPOTLIGHT ============ */
.spotlight{
  display:grid;grid-template-columns:1fr;gap:0;
  border-radius:var(--r-xl);overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
}
.spotlight-media{position:relative;overflow:hidden;background:#F0E9E0;aspect-ratio:16/10}
.spotlight-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.spotlight:hover .spotlight-media img{transform:scale(1.03)}
.spotlight-media::after{
  content:"";position:absolute;inset:auto 0 0 0;height:52%;
  background:linear-gradient(180deg,transparent,rgba(20,23,31,.42));
}
.spotlight-media .badge{position:absolute;left:16px;bottom:16px;z-index:2}
.spotlight-body{padding:26px 22px 28px}
.spotlight-body h3{font-size:clamp(20px,2.2vw,25px);margin-bottom:12px;line-height:1.4}
.spotlight-body>p{font-size:15px;color:var(--c-ink-2);line-height:1.85;margin-bottom:18px}
.spotlight-list{margin:0 0 22px}
.spotlight-list li{
  position:relative;padding-left:26px;margin-bottom:12px;
  font-size:14.5px;color:var(--c-ink-2);line-height:1.75;
}
.spotlight-list li::before{
  content:"";position:absolute;left:0;top:8px;
  width:9px;height:9px;border-radius:3px;background:var(--grad-brand);
}
@media (min-width:900px){
  .spotlight{grid-template-columns:.95fr 1.05fr;align-items:stretch}
  .spotlight-media{aspect-ratio:auto;height:100%;min-height:360px}
  .spotlight-body{padding:38px 36px}
}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(244,81,30,.32)}
.faq-item[open]{border-color:rgba(244,81,30,.42);box-shadow:0 12px 30px -20px rgba(244,81,30,.6)}
.faq-q{
  display:flex;align-items:center;gap:14px;
  padding:18px 20px;
  font-size:16.5px;font-weight:700;color:var(--c-ink);
  cursor:pointer;list-style:none;
}
.faq-q::-webkit-details-marker{display:none}
.faq-num{
  flex:none;width:32px;height:32px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:#F3EDE6;color:var(--c-ink-2);
  font-family:var(--num-font);font-size:18px;font-weight:700;letter-spacing:.02em;
  transition:background .2s,color .2s;
}
.faq-item[open] .faq-num{background:var(--grad-brand);color:#fff}
.faq-arrow{margin-left:auto;color:var(--c-muted);font-size:13px;transition:transform .2s,color .2s}
.faq-item[open] .faq-arrow{transform:rotate(180deg);color:var(--c-primary)}
.faq-a{
  padding:16px 20px 20px 66px;
  background:var(--c-warm);
  border-top:1px solid var(--c-line);
  font-size:14.5px;line-height:1.9;color:var(--c-ink-2);
}
.faq-a p:last-child{margin-bottom:0}

/* ============ CROSS LINKS ============ */
.cross-wrap{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  padding:22px;border-radius:var(--r-lg);
  background:var(--c-surface);border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
}
.cross-title{font-size:14px;font-weight:700;color:var(--c-ink-2);margin-right:6px}
.pill-link{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:var(--r-pill);
  font-size:14px;font-weight:600;color:var(--c-ink-2);
  background:#F6F1EA;border:1px solid transparent;
  transition:background .2s,color .2s,border-color .2s,transform .18s;
}
.pill-link i{font-size:11px;color:var(--c-primary)}
.pill-link:hover{background:rgba(244,81,30,.1);color:var(--c-primary);border-color:rgba(244,81,30,.3);transform:translateY(-1px)}

/* ============ SHARE CTA ============ */
.cta-section{padding-top:56px;padding-bottom:8px}
@media (min-width:1024px){.cta-section{padding-top:84px}}
.share-cta{
  position:relative;overflow:hidden;
  border-radius:var(--r-xl);
  padding:40px 26px;
  color:#fff;
  background-image:linear-gradient(105deg,rgba(20,23,31,.88),rgba(20,23,31,.62)),var(--grad-brand);
  box-shadow:0 24px 50px -30px rgba(124,92,255,.7);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
}
.share-cta::after{
  content:"";position:absolute;right:-80px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,197,61,.28),transparent 68%);
  pointer-events:none;
}
.share-cta .cta-text{position:relative;max-width:560px}
.share-cta h2{color:#fff;font-size:clamp(21px,2.5vw,28px);margin-bottom:10px}
.share-cta p{margin:0;color:rgba(255,255,255,.86);font-size:14.5px;line-height:1.8}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:12px}

/* ============ FOOTER ============ */
.site-footer{
  margin-top:64px;
  background:#14171F;
  color:#F3EDE6;
  padding-top:56px;
}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:32px;
  padding-bottom:36px;
}
@media (min-width:768px){.footer-grid{grid-template-columns:1fr 1fr;gap:36px}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand{
  display:inline-flex;align-items:center;gap:9px;flex-wrap:wrap;
  font-weight:800;font-size:18px;color:#fff;margin-bottom:14px;
}
.footer-brand .brand-badge{border-color:rgba(255,197,61,.5);color:var(--c-amber);background:rgba(255,197,61,.1)}
.footer-about{font-size:13.5px;line-height:1.85;color:rgba(243,237,230,.66);margin:0 0 12px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin:0 0 14px}
.footer-col p{font-size:13.5px;line-height:1.85;color:rgba(243,237,230,.66);margin:0 0 10px}
.footer-col ul li{margin-bottom:9px}
.footer-col ul li a{
  font-size:13.5px;color:rgba(243,237,230,.68);line-height:1.8;
  display:inline-block;transition:color .2s,transform .2s;
}
.footer-col ul li a:hover{color:var(--c-primary-2);transform:translateX(2px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  font-size:13px;color:rgba(243,237,230,.5);line-height:1.7;
}
@media (max-width:479px){
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* ============ NAV RESPONSIVE ============ */
@media (max-width:1023px){
  .header-inner{min-height:64px;gap:10px}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:flex-start;gap:2px;
    margin-left:0;padding:12px 16px 18px;
    background:var(--c-surface);
    border-bottom:1px solid var(--c-line);
    box-shadow:0 22px 40px -24px rgba(20,23,31,.45);
    display:none;
  }
  .main-nav.is-open{display:flex}
  .nav-link{width:100%;padding:11px 10px;border-radius:10px;font-size:15px}
  .nav-link::after{display:none}
  .nav-link:hover{background:#F6F1EA}
  .nav-link.is-active{padding-left:24px;background:rgba(244,81,30,.08)}
  .nav-link.is-active::before{left:10px}
  .nav-toggle{display:inline-flex}
  .header-actions{margin-left:auto}
  .brand{font-size:17px}
  .header-actions .btn-sm{padding:10px 14px;font-size:13px}
}
@media (max-width:520px){
  .header-actions .btn-sm span.long{display:none}
  .brand{font-size:16px}
  .brand-badge{font-size:10px;padding:1px 6px 2px}
  .hero-panel{padding:26px 18px 24px}
  .stats-row{gap:10px}
  .badge{padding:8px 14px 8px 11px}
  .badge-num{font-size:19px}
  .faq-a{padding:14px 16px 18px 16px}
  .faq-q{padding:15px 16px;font-size:15.5px;gap:11px}
  .faq-num{width:28px;height:28px;font-size:16px;border-radius:8px}
  .cover-banner{min-height:200px}
  .share-cta{padding:30px 20px}
  .cta-actions .btn{width:100%}
}

/* motion preference */
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .guide-card:hover,.pill-link:hover,.chip:hover,.btn:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --c-primary:#F4511E;
  --c-primary-2:#FF7A3D;
  --c-accent:#00B39A;
  --c-violet:#7C5CFF;
  --c-amber:#FFC53D;
  --grad-brand:linear-gradient(105deg,#F4511E 0%,#FF7A3D 42%,#7C5CFF 100%);
  --c-bg:#FBF7F2;
  --c-surface:#FFFFFF;
  --c-ink:#14171F;
  --c-ink-2:#3A4050;
  --c-muted:#6B7280;
  --c-line:#E8E1D8;
  --c-warm:#FDF4EC;
  --r-card:20px;
  --r-cover:28px;
  --r-img:16px;
  --r-btn:999px;
  --r-input:12px;
  --sh-rest:0 2px 8px rgba(20,23,31,.06);
  --sh-hover:0 18px 40px -12px rgba(244,81,30,.28);
  --w:1200px;
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Oswald","Barlow Condensed","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
a:hover{color:var(--c-primary)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--c-ink);letter-spacing:-.01em}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(244,81,30,.45);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--w);margin:0 auto;padding-left:16px;padding-right:16px}
@media (min-width:640px){.container{padding-left:24px;padding-right:24px}}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px}}
@media (min-width:1440px){:root{--w:1240px}}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-ink);color:#fff;padding:10px 18px;border-radius:0 0 12px 0;z-index:999}
.skip-link:focus{left:0;color:#fff}

/* ============ Foundation 覆盖 ============ */
.button,.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-family:var(--font-body);font-size:15px;font-weight:600;line-height:1;
  padding:14px 26px;border-radius:var(--r-btn);border:1px solid transparent;
  background:var(--grad-brand);color:#fff;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;
  text-align:center;
}
.button:hover,.btn:hover{color:#fff;filter:brightness(1.06);transform:translateY(-1px);box-shadow:var(--sh-hover)}
.button:active,.btn:active{transform:translateY(0)}
.btn-sm{padding:11px 20px;font-size:14px}
.btn-ghost{
  background:var(--c-surface);color:var(--c-ink);border:1px solid var(--c-line);box-shadow:var(--sh-rest);
}
.btn-ghost:hover{color:var(--c-primary);border-color:rgba(244,81,30,.45);box-shadow:0 12px 26px -14px rgba(20,23,31,.35);filter:none}
.btn-dark{background:var(--c-ink);color:#fff}
.btn-dark:hover{background:#000;color:#fff}

/* ============ 顶部细条 ============ */
.topbar{background:var(--c-ink);color:#F3EDE6;font-size:13px;height:34px;display:flex;align-items:center}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-note{display:inline-flex;align-items:center;gap:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-note i{color:var(--c-amber)}
.topbar a{color:#F3EDE6;font-size:13px;border-bottom:1px solid rgba(243,237,230,.4);white-space:nowrap}
.topbar a:hover{color:var(--c-amber);border-color:var(--c-amber)}
@media (max-width:639px){.topbar-note{max-width:66%}}

/* ============ 页头导航 ============ */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(251,247,242,.94);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px -18px rgba(20,23,31,.45);background:rgba(251,247,242,.98)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px;padding-top:8px;padding-bottom:8px}
.brand{display:inline-flex;align-items:center;gap:9px;font-size:19px;font-weight:800;color:var(--c-ink);letter-spacing:-.02em;flex:0 0 auto}
.brand:hover{color:var(--c-ink)}
.brand-dot{width:12px;height:12px;border-radius:50%;background:var(--grad-brand);box-shadow:0 0 0 4px rgba(244,81,30,.14);flex:0 0 auto}
.brand-badge{
  font-size:11px;font-weight:700;color:var(--c-primary);
  border:1px solid rgba(244,81,30,.4);border-radius:999px;padding:2px 8px;line-height:1.5;letter-spacing:.04em;
}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--c-ink-2);
  padding:10px 12px;border-radius:10px;transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:4px;transform:translateX(-50%) scaleX(0);
  width:60%;height:2px;border-radius:2px;background:var(--grad-brand);
  transition:transform .22s ease;transform-origin:center;
}
.nav-link:hover{color:var(--c-primary);background:rgba(244,81,30,.06)}
.nav-link:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-link.is-active{color:var(--c-ink);font-weight:700}
.nav-link.is-active::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary);flex:0 0 auto;
}
.nav-link.is-active::after{transform:translateX(-50%) scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;align-items:center;justify-content:center;
  border-radius:12px;border:1px solid var(--c-line);background:var(--c-surface);
  color:var(--c-ink);font-size:17px;cursor:pointer;transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:rgba(244,81,30,.5);color:var(--c-primary)}
@media (max-width:1023px){
  .main-nav{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:2px;
    background:var(--c-surface);border-bottom:1px solid var(--c-line);
    padding:12px 16px 18px;box-shadow:0 24px 40px -24px rgba(20,23,31,.4);
    display:none;
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:13px 14px;font-size:16px;border-radius:12px}
  .nav-link::after{bottom:6px;width:34px}
  .nav-link.is-active{background:var(--c-warm)}
  .nav-toggle{display:inline-flex}
  .header-actions .btn span{display:none}
}
@media (max-width:639px){
  .brand{font-size:17px}
  .header-actions .btn-sm{padding:10px 14px;font-size:13px}
}

/* ============ 面包屑 ============ */
.breadcrumb-bar{background:var(--c-bg);padding:16px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted)}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"›";color:#C8BFB3;font-size:14px}
.breadcrumb a{color:var(--c-ink-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb li[aria-current] span,.breadcrumb .current{color:var(--c-primary);font-weight:600}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:40px 0 56px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.png) center/cover no-repeat;
  opacity:.14;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;right:-140px;top:-160px;width:440px;height:440px;border-radius:50%;
  background:var(--grad-brand);filter:blur(96px);opacity:.3;pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.1em;color:var(--c-primary);
  background:rgba(244,81,30,.09);border:1px solid rgba(244,81,30,.24);
  padding:6px 14px;border-radius:999px;margin-bottom:18px;
}
.eyebrow i{font-size:11px}
.page-hero h1{
  font-size:clamp(28px,4vw,46px);line-height:1.22;font-weight:800;
  max-width:900px;margin-bottom:16px;
}
.page-hero h1 .hl{
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{max-width:780px;font-size:16px;color:var(--c-ink-2);line-height:1.9;margin-bottom:26px}
.badge-row{display:flex;flex-wrap:wrap;gap:12px}
.stat-badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:10px 18px;border-radius:999px;font-size:13px;font-weight:600;
  background:var(--c-ink);color:#F3EDE6;box-shadow:var(--sh-rest);
}
.stat-badge i{color:var(--c-amber);font-size:13px}
.stat-badge .num{
  font-family:var(--font-num);font-size:22px;font-weight:700;letter-spacing:.02em;color:var(--c-amber);line-height:1;
}
.stat-badge .unit{font-size:12px;color:rgba(243,237,230,.72);font-weight:500}
.stat-badge.outline{
  background:var(--c-surface);color:var(--c-ink);
  border:1px solid transparent;
  background-image:linear-gradient(var(--c-surface),var(--c-surface)),var(--grad-brand);
  background-origin:border-box;background-clip:padding-box,border-box;
  border:1px solid transparent;
}
.stat-badge.outline i{color:var(--c-primary)}
.stat-badge.outline .num{color:var(--c-primary)}
.stat-badge.outline .unit{color:var(--c-muted)}

/* ============ 板块通用 ============ */
.section{padding:64px 0 0}
.section:last-of-type{padding-bottom:8px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:26px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700}
.section-head .sub{font-size:14px;color:var(--c-muted);max-width:640px;margin:8px 0 0}
.section-tag{
  display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:700;color:var(--c-accent);
  background:rgba(0,179,154,.1);border:1px solid rgba(0,179,154,.24);border-radius:999px;padding:5px 12px;
}
@media (max-width:639px){.section{padding:44px 0 0}}

/* ============ 目录筛选条 ============ */
.filter-strip{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-rest);
}
.filter-strip .strip-label{
  display:flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--c-muted);
  letter-spacing:.06em;margin-bottom:14px;
}
.filter-strip .strip-label i{color:var(--c-primary)}
.chip-track{
  display:flex;gap:12px;overflow-x:auto;padding-bottom:6px;
  scrollbar-width:thin;-webkit-overflow-scrolling:touch;
  mask-image:linear-gradient(90deg,#000 0,#000 92%,transparent 100%);
  -webkit-mask-image:linear-gradient(90deg,#000 0,#000 92%,transparent 100%);
}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:9px;
  padding:11px 18px;border-radius:999px;border:1px solid var(--c-line);
  background:var(--c-bg);font-size:14px;font-weight:600;color:var(--c-ink-2);
  transition:all .2s ease;white-space:nowrap;
}
.chip .idx{font-family:var(--font-num);font-size:14px;color:var(--c-primary);letter-spacing:.04em}
.chip:hover{border-color:rgba(244,81,30,.45);color:var(--c-primary);background:#fff;transform:translateY(-1px)}
.chip.is-current{background:var(--grad-brand);color:#fff;border-color:transparent;box-shadow:var(--sh-hover)}
.chip.is-current .idx{color:#fff;opacity:.85}

/* ============ 目录式清单 ============ */
.rank-panel{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-rest);overflow:hidden;
}
.rank-item{
  display:grid;grid-template-columns:92px minmax(0,1fr) auto;
  gap:24px;align-items:center;
  padding:26px 28px;border-bottom:1px solid var(--c-line);
  transition:background .2s ease,transform .2s ease;
  position:relative;
}
.rank-item:last-child{border-bottom:none}
.rank-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad-brand);
  transform:scaleY(0);transform-origin:top;transition:transform .24s ease;
}
.rank-item:hover{background:#FFFAF5}
.rank-item:hover::before{transform:scaleY(1)}
.rank-num{
  font-family:var(--font-num);font-size:44px;font-weight:700;line-height:.9;letter-spacing:.02em;
  color:#E3D9CC;transition:color .2s ease;user-select:none;
}
.rank-item:hover .rank-num{color:var(--c-primary)}
.rank-body h3{font-size:19px;font-weight:700;line-height:1.45;margin-bottom:6px}
.rank-body h3 a{transition:color .2s ease}
.rank-body p{font-size:14px;line-height:1.75;color:var(--c-muted);margin:0;max-width:720px}
.rank-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  color:var(--c-ink-2);background:var(--c-warm);border:1px solid rgba(232,225,216,.9);
  border-radius:999px;padding:3px 10px;
}
.tag i{font-size:10px;color:var(--c-primary)}
.rank-side{display:flex;flex-direction:column;align-items:flex-end;gap:10px;min-width:150px}
.data-badge{
  display:inline-flex;align-items:baseline;gap:6px;
  background:var(--c-ink);color:#F3EDE6;border-radius:999px;padding:8px 16px;
  font-size:12px;font-weight:600;white-space:nowrap;
}
.data-badge .num{font-family:var(--font-num);font-size:20px;font-weight:700;color:var(--c-amber);line-height:1;letter-spacing:.02em}
.data-badge .suffix{font-size:11px;color:rgba(243,237,230,.72)}
.data-badge.soft{
  background:var(--c-surface);color:var(--c-ink);border:1px solid transparent;
  background-image:linear-gradient(var(--c-surface),var(--c-surface)),var(--grad-brand);
  background-origin:border-box;background-clip:padding-box,border-box;
}
.data-badge.soft .num{color:var(--c-primary)}
.data-badge.soft .suffix{color:var(--c-muted)}
.rank-arrow{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;
  border-radius:50%;border:1px solid var(--c-line);color:var(--c-muted);font-size:12px;
  transition:all .2s ease;
}
.rank-item:hover .rank-arrow{background:var(--grad-brand);color:#fff;border-color:transparent;transform:translateX(3px)}
@media (max-width:899px){
  .rank-item{grid-template-columns:64px minmax(0,1fr);gap:16px;padding:22px}
  .rank-num{font-size:34px}
  .rank-side{grid-column:1 / -1;flex-direction:row;align-items:center;justify-content:flex-start;gap:10px;min-width:0;margin-top:2px}
}
@media (max-width:520px){
  .rank-item{grid-template-columns:52px minmax(0,1fr);padding:20px 16px;gap:12px}
  .rank-num{font-size:28px}
  .rank-body h3{font-size:17px}
  .rank-body p{font-size:13.5px}
}

/* ============ 重点条目大卡 ============ */
.focus-card{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  border-radius:var(--r-cover);overflow:hidden;background:var(--c-surface);
  border:1px solid var(--c-line);box-shadow:var(--sh-rest);
  transition:box-shadow .25s ease,transform .25s ease;
}
.focus-card:hover{box-shadow:var(--sh-hover);transform:translateY(-3px)}
.focus-media{position:relative;min-height:320px;background:#F0E9E0}
.focus-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}
.focus-media .media-tag{
  position:absolute;left:18px;top:18px;background:rgba(20,23,31,.86);color:#F3EDE6;
  font-size:12px;font-weight:600;padding:6px 13px;border-radius:999px;display:inline-flex;align-items:center;gap:7px;
}
.focus-media .media-tag i{color:var(--c-amber);font-size:11px}
.focus-content{padding:34px 32px;display:flex;flex-direction:column;justify-content:center}
.focus-content h3{font-size:clamp(20px,2.2vw,26px);font-weight:800;line-height:1.35;margin:14px 0 12px}
.focus-content p{font-size:15px;line-height:1.85;color:var(--c-ink-2);margin-bottom:18px}
.focus-points{display:grid;gap:10px;margin-bottom:24px}
.focus-points li{display:flex;gap:10px;font-size:14px;color:var(--c-ink-2);line-height:1.7}
.focus-points i{color:var(--c-accent);margin-top:6px;font-size:12px}
.focus-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (max-width:899px){
  .focus-card{grid-template-columns:1fr}
  .focus-media{min-height:220px}
  .focus-content{padding:26px 22px}
}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.is-open{border-color:rgba(244,81,30,.4);box-shadow:var(--sh-rest)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:18px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:700;color:var(--c-ink);line-height:1.5;
}
.faq-idx{
  flex:0 0 auto;width:32px;height:32px;border-radius:9px;background:var(--c-warm);
  color:var(--c-primary);font-family:var(--font-num);font-size:15px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;letter-spacing:.02em;
  transition:background .2s ease,color .2s ease;
}
.faq-item.is-open .faq-idx{background:var(--grad-brand);color:#fff}
.faq-q .qtext{flex:1 1 auto}
.faq-q .caret{color:var(--c-muted);font-size:13px;transition:transform .18s ease}
.faq-item.is-open .caret{transform:rotate(180deg);color:var(--c-primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a-inner{padding:0 22px 20px 68px;font-size:14.5px;line-height:1.85;color:var(--c-ink-2)}
.faq-a-inner .faq-extra{
  margin-top:12px;padding:12px 16px;border-left:3px solid var(--c-primary);
  background:var(--c-warm);border-radius:0 12px 12px 0;font-size:13.5px;color:var(--c-ink-2);
}
@media (max-width:520px){
  .faq-q{padding:16px;font-size:15px;gap:10px}
  .faq-a-inner{padding:0 16px 16px 16px}
}

/* ============ 交叉分类 ============ */
.cross-links{display:flex;flex-wrap:wrap;gap:12px}
.cross-pill{
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 22px;border-radius:999px;background:var(--c-surface);
  border:1px solid var(--c-line);font-size:14.5px;font-weight:600;color:var(--c-ink-2);
  box-shadow:var(--sh-rest);transition:all .2s ease;
}
.cross-pill i{font-size:12px;color:var(--c-primary);transition:transform .2s ease}
.cross-pill:hover{transform:translateY(-2px);border-color:rgba(244,81,30,.42);color:var(--c-primary);box-shadow:var(--sh-hover)}
.cross-pill:hover i{transform:translateX(3px)}

/* ============ CTA 区 ============ */
.cta-band{padding:64px 0 0}
.cta-inner{
  position:relative;overflow:hidden;border-radius:var(--r-cover);
  padding:44px 40px;min-height:200px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  background:var(--grad-brand);
}
.cta-inner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(20,23,31,.62) 0%,rgba(20,23,31,.34) 58%,rgba(20,23,31,.16) 100%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:640px}
.cta-copy h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.35;margin-bottom:10px;font-weight:800}
.cta-copy p{color:rgba(255,255,255,.9);font-size:14.5px;line-height:1.8;margin:0}
.cta-side{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.cta-side .btn-ghost{background:rgba(255,255,255,.95);border-color:transparent}
.cta-side .btn-ghost:hover{background:#fff}
.cta-badge{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;
  background:rgba(20,23,31,.72);color:#F3EDE6;font-size:12.5px;font-weight:600;
  border:1px solid rgba(255,255,255,.24);
}
.cta-badge .num{font-family:var(--font-num);font-size:19px;color:var(--c-amber);line-height:1;letter-spacing:.02em}
@media (max-width:768px){
  .cta-inner{padding:30px 22px;border-radius:24px}
  .cta-side{width:100%}
  .cta-side .btn{flex:1 1 auto}
}

/* ============ 页脚 ============ */
.site-footer{margin-top:72px;background:var(--c-ink);color:#D7D2CA;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px}
.footer-brand{display:inline-flex;align-items:center;gap:9px;font-size:18px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-brand .brand-badge{color:#FFB79B;border-color:rgba(255,122,61,.5)}
.footer-about{font-size:13.5px;line-height:1.85;color:rgba(243,237,230,.72);margin-bottom:12px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col li a{font-size:13.5px;color:rgba(243,237,230,.72);line-height:1.8;transition:color .2s ease}
.footer-col li a:hover{color:var(--c-primary-2)}
.footer-col p{font-size:13.5px;line-height:1.8;color:rgba(243,237,230,.72);margin-bottom:10px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:18px 0 22px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(243,237,230,.55);
}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:30px}}
@media (max-width:639px){.footer-grid{grid-template-columns:1fr;gap:26px}.site-footer{margin-top:52px;padding-top:42px}}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
  .rank-item:hover,.focus-card:hover,.cross-pill:hover,.btn:hover{transform:none !important}
}

/* roulang page: category4 */
:root{
  --c-primary:#F4511E;
  --c-primary-2:#FF7A3D;
  --c-accent:#00B39A;
  --c-violet:#7C5CFF;
  --grad-brand:linear-gradient(105deg,#F4511E 0%,#FF7A3D 42%,#7C5CFF 100%);
  --c-bg:#FBF7F2;
  --c-surface:#FFFFFF;
  --c-ink:#14171F;
  --c-ink-2:#3A4050;
  --c-muted:#6B7280;
  --c-line:#E8E1D8;
  --c-amber:#FFC53D;
  --c-soft:#FDF4EC;
  --r-card:20px;
  --r-cover:28px;
  --r-img:16px;
  --sh-1:0 2px 8px rgba(20,23,31,.06);
  --sh-2:0 18px 40px -12px rgba(244,81,30,.28);
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Barlow Condensed","Oswald",system-ui,-apple-system,sans-serif;
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary)}
p{margin:0 0 var(--sp-4)}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-family:var(--font-body)}
h1{font-size:clamp(30px,4vw,46px);line-height:1.2;font-weight:800;letter-spacing:-.01em}
h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700}
h3{font-size:20px;line-height:1.4;font-weight:700}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
button,input{font-size:16px}
:focus-visible{outline:3px solid rgba(244,81,30,.4);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1440px){.container{max-width:1240px}}
@media (max-width:1023px){.container{padding:0 24px}}
@media (max-width:639px){.container{padding:0 16px}}

/* ---------- 顶部细条 ---------- */
.topbar{
  background:var(--c-ink);
  color:#F3EDE6;
  font-size:13px;
  height:34px;
  display:flex;
  align-items:center;
}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px}
.topbar-note{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:rgba(243,237,230,.85)}
.topbar-link{color:#F3EDE6;font-weight:600;white-space:nowrap}
.topbar-link i{font-size:11px;margin-left:4px}
.topbar-link:hover{color:var(--c-amber)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(251,247,242,.94);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 30px -18px rgba(20,23,31,.4);background:rgba(251,247,242,.98)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:74px}
.brand{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:19px;color:var(--c-ink);letter-spacing:.01em;flex:0 0 auto}
.brand:hover{color:var(--c-ink)}
.brand-dot{width:12px;height:12px;border-radius:50%;background:var(--grad-brand);box-shadow:0 0 0 4px rgba(244,81,30,.14);flex:0 0 auto}
.brand-badge{
  font-size:11px;
  font-weight:700;
  line-height:1;
  padding:5px 8px;
  border-radius:999px;
  color:var(--c-primary);
  background:#fff;
  border:1px solid rgba(244,81,30,.35);
  letter-spacing:.06em;
}
.main-nav{display:flex;align-items:center;gap:22px;margin-left:auto}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:600;
  color:var(--c-ink-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:20%;
  right:20%;
  bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--grad-brand);
  opacity:0;
  transform:scaleX(.4);
  transition:opacity .2s ease,transform .2s ease;
}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{opacity:1;transform:scaleX(1)}
.nav-link.is-active{color:var(--c-ink);font-weight:700}
.nav-link.is-active::before{
  content:"";
  position:absolute;
  left:-12px;
  top:50%;
  transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;
  background:var(--c-primary);
}
.nav-link.is-active::after{opacity:1;transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:1px solid transparent;
  border-radius:999px;
  font-weight:600;
  font-size:15px;
  line-height:1;
  padding:14px 24px;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  text-align:center;
}
.btn i{font-size:13px;transition:transform .2s ease}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 10px 24px -12px rgba(244,81,30,.75)}
.btn-primary:hover{color:#fff;transform:translateY(-1px);box-shadow:0 16px 30px -12px rgba(244,81,30,.85)}
.btn-primary:hover i{transform:translateX(3px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--c-ink);border-color:var(--c-line);box-shadow:var(--sh-1)}
.btn-ghost:hover{border-color:rgba(244,81,30,.5);color:var(--c-primary);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-light{background:#fff;color:var(--c-ink);box-shadow:0 10px 24px -16px rgba(0,0,0,.6)}
.btn-light:hover{color:var(--c-primary);transform:translateY(-1px)}
.btn-sm{padding:12px 20px;font-size:14px;min-height:44px}
.btn-lg{padding:16px 30px;font-size:16px;min-height:52px}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid var(--c-line);
  background:#fff;
  color:var(--c-ink);
  cursor:pointer;
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}

/* ---------- 页面头 ---------- */
.page-head{
  position:relative;
  padding:56px 0 48px;
  background-image:linear-gradient(100deg,rgba(251,247,242,.97) 0%,rgba(251,247,242,.9) 48%,rgba(251,247,242,.72) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.page-head::after{
  content:"";
  position:absolute;
  right:-140px;top:-120px;
  width:420px;height:420px;
  border-radius:50%;
  background:var(--grad-brand);
  opacity:.1;
  filter:blur(6px);
  pointer-events:none;
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-bottom:20px}
.crumbs a{color:var(--c-muted)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .sep{opacity:.6}
.crumbs .current{color:var(--c-primary);font-weight:600}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--c-primary);
  padding:7px 14px;
  border-radius:999px;
  background:#fff;
  border:1px solid rgba(244,81,30,.24);
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grad-brand)}
.page-head h1{max-width:820px}
.page-head .lead{max-width:760px;margin:18px 0 0;font-size:17px;line-height:1.9;color:var(--c-ink-2)}
.badge-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.badge-stat{
  display:inline-flex;align-items:center;gap:10px;
  padding:10px 18px;
  border-radius:999px;
  background:var(--c-ink);
  color:#F3EDE6;
  font-size:13px;
  box-shadow:var(--sh-1);
}
.badge-stat i{color:var(--c-amber);font-size:13px}
.badge-stat .num{font-family:var(--font-num);font-size:22px;font-weight:700;letter-spacing:.02em;color:var(--c-amber);line-height:1}
.badge-outline{
  display:inline-flex;align-items:center;gap:10px;
  padding:9px 18px;
  border-radius:999px;
  background:#fff;
  font-size:13px;
  color:var(--c-ink-2);
  position:relative;
  box-shadow:var(--sh-1);
}
.badge-outline::before{
  content:"";
  position:absolute;inset:0;
  border-radius:999px;
  padding:1px;
  background:var(--grad-brand);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
  pointer-events:none;
}
.badge-outline .num{font-family:var(--font-num);font-size:20px;font-weight:700;letter-spacing:.02em;color:var(--c-primary);line-height:1}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0}
.section-tight{padding:56px 0}
@media (max-width:1023px){.section{padding:56px 0}.section-tight{padding:48px 0}}
@media (max-width:639px){.section{padding:40px 0}.section-tight{padding:36px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{max-width:640px}
.section-head .sub{margin:8px 0 0;color:var(--c-muted);font-size:15px;max-width:640px}
.section-head .head-note{font-size:13px;color:var(--c-muted);display:inline-flex;align-items:center;gap:8px}
.section-head .head-note i{color:var(--c-accent)}

/* ---------- 筛选锚点 ---------- */
.filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  padding:16px;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  margin-bottom:40px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:9px 18px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  color:var(--c-ink-2);
  background:var(--c-bg);
  border:1px solid var(--c-line);
  transition:all .2s ease;
}
.chip i{font-size:12px;color:var(--c-primary)}
.chip:hover{color:var(--c-primary);border-color:rgba(244,81,30,.45);background:#fff;transform:translateY(-1px)}
.chip.is-on{background:var(--c-ink);color:#F3EDE6;border-color:var(--c-ink)}
.chip.is-on i{color:var(--c-amber)}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:8px}
.timeline::before{
  content:"";
  position:absolute;
  left:107px;
  top:14px;
  bottom:14px;
  width:3px;
  border-radius:999px;
  background:linear-gradient(180deg,#F4511E 0%,#FF7A3D 45%,#7C5CFF 100%);
  opacity:.85;
}
.tl-item{position:relative;padding-left:144px;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-date{
  position:absolute;
  left:0;top:20px;
  width:88px;
  text-align:right;
  font-family:var(--font-num);
  font-size:22px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--c-ink);
  line-height:1.1;
}
.tl-date span{display:block;font-family:var(--font-body);font-size:12px;font-weight:500;color:var(--c-muted);letter-spacing:0;margin-top:4px}
.tl-marker{
  position:absolute;
  left:100px;
  top:24px;
  width:17px;height:17px;
  border-radius:50%;
  background:#fff;
  border:3px solid var(--c-primary);
  box-shadow:0 0 0 5px rgba(244,81,30,.1);
}
.tl-item:nth-child(even) .tl-marker{border-color:var(--c-violet);box-shadow:0 0 0 5px rgba(124,92,255,.1)}
.tl-card{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:24px 26px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(244,81,30,.3)}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.tag{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;
  padding:4px 12px;border-radius:999px;
  background:var(--c-soft);
  color:#B3471A;
}
.tag-accent{background:rgba(0,179,154,.1);color:#00786A}
.tag-violet{background:rgba(124,92,255,.1);color:#5B41C7}
.tl-card h3{font-size:19px;margin-bottom:8px}
.tl-card p{margin:0;color:var(--c-ink-2);font-size:14px;line-height:1.75}
.tl-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:16px;padding-top:14px;border-top:1px dashed var(--c-line);font-size:13px;color:var(--c-muted)}
.tl-meta i{color:var(--c-accent);font-size:12px;margin-right:6px}
.tl-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--c-primary);margin-left:auto}
.tl-link i{font-size:11px;transition:transform .2s ease}
.tl-link:hover{color:var(--c-primary-2)}
.tl-link:hover i{transform:translateX(3px)}

/* ---------- 重点条目 ---------- */
.feature-card{
  display:grid;
  grid-template-columns:1.05fr 1fr;
  gap:0;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-cover);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,transform .25s ease;
}
.feature-card:hover{box-shadow:var(--sh-2);transform:translateY(-3px)}
.feature-media{position:relative;min-height:320px;background:#F0E9E0}
.feature-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
.feature-media .media-badge{
  position:absolute;left:18px;top:18px;
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;
  background:rgba(20,23,31,.82);
  color:#F3EDE6;font-size:12px;font-weight:600;
  backdrop-filter:blur(4px);
}
.feature-media .media-badge i{color:var(--c-amber);font-size:11px}
.feature-body{padding:36px 38px;display:flex;flex-direction:column;justify-content:center}
.feature-body h3{font-size:clamp(20px,2vw,26px);line-height:1.4;margin-bottom:14px}
.feature-body p{color:var(--c-ink-2);font-size:15px;line-height:1.85}
.feature-list{margin:18px 0 24px;display:grid;gap:10px}
.feature-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--c-ink-2)}
.feature-list i{color:var(--c-accent);font-size:12px;margin-top:7px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(244,81,30,.32)}
.faq-item[open]{border-color:rgba(244,81,30,.42);box-shadow:0 14px 34px -20px rgba(244,81,30,.55)}
.faq-item summary{
  display:flex;
  align-items:center;
  gap:16px;
  padding:20px 24px;
  cursor:pointer;
  list-style:none;
  font-weight:700;
  font-size:16px;
  color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-num{
  flex:0 0 auto;
  width:32px;height:32px;
  border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-num);
  font-size:17px;font-weight:700;
  background:var(--c-soft);
  color:var(--c-primary);
  transition:background .2s ease,color .2s ease;
}
.faq-item[open] .faq-num{background:var(--grad-brand);color:#fff}
.faq-q{flex:1 1 auto;line-height:1.5}
.faq-icon{font-size:13px;color:var(--c-muted);transition:transform .18s ease,color .18s ease}
.faq-item[open] .faq-icon{transform:rotate(180deg);color:var(--c-primary)}
.faq-a{padding:0 24px 22px 72px;background:var(--c-soft);margin:0 0 0 0;color:var(--c-ink-2);font-size:14.5px;line-height:1.85}
.faq-a p{margin:0}
.faq-a{padding-top:16px}

/* ---------- 交叉分类 ---------- */
.cross-row{display:flex;flex-wrap:wrap;gap:12px}
.cross-pill{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 22px;
  border-radius:999px;
  background:#fff;
  border:1px solid var(--c-line);
  font-size:14px;font-weight:600;color:var(--c-ink-2);
  box-shadow:var(--sh-1);
  transition:all .2s ease;
}
.cross-pill i{font-size:12px;color:var(--c-primary)}
.cross-pill:hover{color:var(--c-primary);border-color:rgba(244,81,30,.5);transform:translateY(-2px);box-shadow:var(--sh-2)}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  border-radius:var(--r-cover);
  overflow:hidden;
  padding:52px 48px;
  background-image:linear-gradient(100deg,rgba(20,23,31,.9) 0%,rgba(20,23,31,.74) 55%,rgba(20,23,31,.55) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  color:#F3EDE6;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background:var(--grad-brand);
  opacity:.34;
  mix-blend-mode:multiply;
  pointer-events:none;
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{color:#fff;max-width:520px}
.cta-inner p{color:rgba(243,237,230,.86);margin:12px 0 0;max-width:520px;font-size:15px}
.cta-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.cta-stat{
  display:inline-flex;align-items:center;gap:10px;
  padding:10px 18px;border-radius:999px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.28);
  font-size:13px;color:#fff;
}
.cta-stat .num{font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--c-amber);line-height:1}
.cta-stat i{color:var(--c-amber);font-size:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:rgba(243,237,230,.82);margin-top:80px;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:12px;letter-spacing:.04em}
.footer-col ul{display:grid;gap:2px}
.footer-col li{line-height:2}
.footer-col a{color:rgba(243,237,230,.78);font-size:14px}
.footer-col a:hover{color:var(--c-primary-2)}
.footer-col p{font-size:13.5px;line-height:1.9;color:rgba(243,237,230,.7);margin:0 0 10px}
.footer-brand{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:18px;color:#fff;margin-bottom:14px}
.footer-brand .brand-badge{background:transparent;color:#FFB79C;border-color:rgba(255,183,156,.4)}
.footer-about{font-size:13.5px;line-height:1.9;color:rgba(243,237,230,.72);margin:0 0 12px;max-width:340px}
.footer-bottom{
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(243,237,230,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .header-inner{min-height:68px;gap:16px}
  .main-nav{gap:16px}
  .nav-link{font-size:14px}
  .header-actions .btn-sm{display:none}
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:absolute;
    top:100%;left:0;right:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    margin:0;
    padding:12px;
    background:#fff;
    border-bottom:1px solid var(--c-line);
    box-shadow:0 24px 40px -28px rgba(20,23,31,.6);
  }
  .main-nav.is-open{display:flex}
  .main-nav .nav-link{padding:12px 14px;border-radius:12px}
  .main-nav .nav-link:hover{background:var(--c-soft)}
  .main-nav .nav-link.is-active{background:var(--c-soft)}
  .nav-link.is-active::before{position:static;transform:none;display:inline-block;margin-right:8px;vertical-align:middle}
  .nav-link.is-active::after{display:none}
  .nav-link::after{display:none}
  .feature-card{grid-template-columns:1fr}
  .feature-media{min-height:220px}
  .feature-media img{aspect-ratio:16/9}
  .feature-body{padding:28px 26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:40px 32px}
  .cta-band{padding:40px 32px}
}
@media (max-width:767px){
  .timeline::before{left:11px}
  .tl-item{padding-left:44px;padding-bottom:22px}
  .tl-date{position:static;width:auto;text-align:left;font-size:20px;margin-bottom:8px}
  .tl-date span{display:inline;margin-left:8px}
  .tl-marker{left:4px;top:26px;width:15px;height:15px}
  .tl-card{padding:20px}
  .faq-a{padding-left:24px;padding-right:20px}
  .faq-item summary{padding:18px 18px;font-size:15px;gap:12px}
  .section-head .head-note{display:none}
  .page-head{padding:40px 0 36px}
  .page-head .lead{font-size:15.5px}
}
@media (max-width:639px){
  .topbar-note{font-size:12px}
  .brand{font-size:17px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto;justify-content:center;min-width:0}
  .feature-body{padding:24px 20px}
  .badge-row{gap:10px}
  .badge-stat,.badge-outline{padding:8px 14px;font-size:12px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category5 */
:root{
  --c-primary:#F4511E;
  --c-primary-2:#FF7A3D;
  --c-accent:#00B39A;
  --c-violet:#7C5CFF;
  --c-amber:#FFC53D;
  --c-bg:#FBF7F2;
  --c-surface:#FFFFFF;
  --c-ink:#14171F;
  --c-ink-2:#3A4050;
  --c-muted:#6B7280;
  --c-line:#E8E1D8;
  --grad-brand:linear-gradient(105deg,#F4511E 0%,#FF7A3D 42%,#7C5CFF 100%);
  --radius-card:20px;
  --radius-cover:28px;
  --radius-btn:999px;
  --shadow-1:0 2px 8px rgba(20,23,31,.06);
  --shadow-2:0 18px 40px -12px rgba(244,81,30,.28);
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Barlow Condensed","Oswald","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.8;
  color:var(--c-ink);
  background:var(--c-bg);
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .18s ease}
button{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
h1,h2,h3{line-height:1.3;font-weight:700}
:focus-visible{outline:3px solid rgba(244,81,30,.35);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media(min-width:1440px){.container{max-width:1240px}}
@media(max-width:1023px){.container{padding:0 24px}}
@media(max-width:639px){.container{padding:0 16px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border:1px solid transparent;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn i{font-size:13px;transition:transform .18s ease}
.btn:hover i{transform:translateX(2px)}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 10px 24px -14px rgba(244,81,30,.75)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--shadow-2);color:#fff}
.btn-ghost{background:#fff;color:var(--c-ink);border-color:var(--c-line);box-shadow:var(--shadow-1)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--c-ink);box-shadow:0 10px 24px -16px rgba(0,0,0,.5)}
.btn-light:hover{transform:translateY(-1px);color:var(--c-primary)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px)}
.btn-sm{height:42px;padding:0 18px;font-size:14px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(251,247,242,.97);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 12px 28px -20px rgba(20,23,31,.55)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:76px;position:relative}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;letter-spacing:.01em;color:var(--c-ink);white-space:nowrap}
.brand-dot{
  width:12px;height:12px;border-radius:50%;background:var(--grad-brand);
  box-shadow:0 0 0 4px rgba(244,81,30,.13);flex:0 0 auto;
}
.brand-badge{
  font-size:11px;font-weight:700;letter-spacing:.08em;color:#fff;
  background:var(--grad-brand);border-radius:999px;padding:2px 8px;line-height:1.6;
}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:9px 13px;font-size:15px;font-weight:600;color:var(--c-ink-2);border-radius:10px;
  transition:color .18s ease,background .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;border-radius:2px;
  background:var(--grad-brand);transform:translateX(-50%);transition:width .22s ease;
}
.nav-link:hover{color:var(--c-primary);background:rgba(244,81,30,.05)}
.nav-link:hover::after{width:58%}
.nav-link.is-active{color:var(--c-ink);font-weight:700;padding-left:18px}
.nav-link.is-active::before{
  content:"";position:absolute;left:4px;top:50%;width:6px;height:6px;border-radius:50%;
  background:var(--c-primary);transform:translateY(-50%);
}
.nav-link.is-active::after{width:58%}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink);cursor:pointer;align-items:center;justify-content:center;
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}
@media(max-width:1100px){
  .nav-link{padding:9px 9px;font-size:14px}
  .brand{font-size:17px}
}
@media(max-width:1023px){
  .main-nav{
    display:none;position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;border:1px solid var(--c-line);border-top:0;
    border-radius:0 0 20px 20px;padding:12px;margin:0;
    box-shadow:0 24px 40px -24px rgba(20,23,31,.45);
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:12px 14px}
  .nav-link.is-active{padding-left:20px;background:rgba(244,81,30,.06)}
  .nav-link::after{display:none}
  .nav-toggle{display:inline-flex}
}
@media(max-width:639px){
  .header-inner{min-height:66px;gap:10px}
  .brand{font-size:16px;gap:8px}
  .brand-badge{font-size:10px}
  .header-actions .btn-sm{height:38px;padding:0 14px;font-size:13px}
  .header-actions .btn-sm i{display:none}
}

/* ---------- 面包屑 ---------- */
.crumb{margin:22px 0 18px;font-size:13px;color:var(--c-muted)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li{display:inline-flex;align-items:center;gap:8px}
.crumb li+li::before{content:"›";color:#C9C0B5;font-size:13px}
.crumb a{color:var(--c-ink-2)}
.crumb a:hover{color:var(--c-primary)}
.crumb .current{color:var(--c-primary);font-weight:600}

/* ---------- 页面头 ---------- */
.page-hero{
  position:relative;overflow:hidden;border-radius:var(--radius-cover);
  padding:52px 56px;color:#fff;isolation:isolate;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  box-shadow:0 26px 60px -34px rgba(20,23,31,.55);
}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(108deg,rgba(20,23,31,.9) 0%,rgba(244,81,30,.72) 58%,rgba(124,92,255,.6) 100%);
}
.page-hero .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.32);
  border-radius:999px;padding:5px 14px;margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(30px,4vw,46px);line-height:1.2;font-weight:800;
  letter-spacing:-.01em;max-width:20em;
}
.page-hero .lede{margin-top:16px;max-width:44em;font-size:16px;line-height:1.9;color:rgba(255,255,255,.9)}
.stat-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.stat-badge{
  display:inline-flex;align-items:center;gap:10px;
  padding:9px 18px;border-radius:999px;font-size:13px;
  background:var(--c-ink);color:#fff;
  border:1px solid transparent;
}
.stat-badge i{color:var(--c-amber);font-size:13px}
.stat-badge b{
  font-family:var(--font-num);font-size:22px;font-weight:700;letter-spacing:.02em;
  color:var(--c-amber);line-height:1;
}
.stat-badge span{color:rgba(255,255,255,.78)}
.stat-badge.ghost{
  background:linear-gradient(#fff,#fff) padding-box,var(--grad-brand) border-box;
  border:1px solid transparent;color:var(--c-ink-2);
}
.stat-badge.ghost b{color:var(--c-primary)}
.stat-badge.ghost span{color:var(--c-muted)}
.stat-badge.ghost i{color:var(--c-accent)}
@media(max-width:768px){
  .page-hero{padding:36px 26px;border-radius:22px}
  .page-hero .lede{font-size:15px}
}
@media(max-width:520px){
  .stat-badge{padding:8px 14px;font-size:12px}
  .stat-badge b{font-size:19px}
}

/* ---------- 锚点胶囊条 ---------- */
.anchor-strip{margin-top:28px}
.anchor-strip .strip-head{
  display:flex;align-items:center;gap:10px;margin-bottom:14px;
  font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--c-muted);
}
.pill-row{display:flex;flex-wrap:wrap;gap:12px}
.pill{
  display:inline-flex;align-items:center;gap:9px;
  padding:11px 20px;border-radius:999px;background:#fff;
  border:1px solid var(--c-line);box-shadow:var(--shadow-1);
  font-size:14px;font-weight:600;color:var(--c-ink-2);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease,color .18s ease;
}
.pill i{font-size:13px;color:var(--c-primary)}
.pill:hover{transform:translateY(-2px);border-color:var(--c-primary);color:var(--c-primary);box-shadow:var(--shadow-2)}
.pill:active{transform:translateY(0)}
@media(max-width:520px){
  .pill{width:100%;justify-content:flex-start;padding:12px 16px}
}

/* ---------- 通用板块 ---------- */
.section{margin-top:72px;scroll-margin-top:100px}
.section-head{margin-bottom:26px}
.section-head .kicker{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.16em;
  color:var(--c-primary);margin-bottom:8px;
}
.section-head h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;font-weight:700;color:var(--c-ink)}
.section-head p{margin-top:10px;color:var(--c-muted);font-size:15px;max-width:52em}
@media(max-width:768px){.section{margin-top:52px}}

/* ---------- 快速解答入口 ---------- */
.quick-grid{display:grid;grid-template-columns:1.18fr 1fr;gap:24px;align-items:start}
.quick-main{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-cover);
  overflow:hidden;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease;
  display:block;
}
.quick-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.quick-main .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#F0E9E0}
.quick-main .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.quick-main:hover .thumb img{transform:scale(1.04)}
.quick-main .thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,23,31,0) 45%,rgba(20,23,31,.55) 100%);
}
.quick-main .thumb .tag{
  position:absolute;left:18px;top:18px;z-index:2;
  background:#fff;color:var(--c-primary);font-size:12px;font-weight:700;
  padding:5px 12px;border-radius:999px;letter-spacing:.05em;
}
.quick-main .body{padding:24px 26px 26px}
.quick-main h3{font-size:21px;line-height:1.45;margin-bottom:10px}
.quick-main p{font-size:14px;line-height:1.8;color:var(--c-muted)}
.quick-main .go{
  display:inline-flex;align-items:center;gap:8px;margin-top:16px;
  font-size:14px;font-weight:700;color:var(--c-primary);
}
.quick-main .go i{transition:transform .18s ease}
.quick-main:hover .go i{transform:translateX(3px)}

.quick-list{display:flex;flex-direction:column;gap:14px}
.quick-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:18px;
  padding:20px 22px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.quick-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#F3D2C2}
.quick-item .qi-num{
  flex:0 0 34px;width:34px;height:34px;border-radius:11px;
  background:#FDF4EC;color:var(--c-primary);
  display:grid;place-items:center;font-family:var(--font-num);font-size:17px;font-weight:700;
}
.quick-item h4{font-size:16px;font-weight:700;margin-bottom:6px;color:var(--c-ink)}
.quick-item p{font-size:13.5px;line-height:1.75;color:var(--c-muted)}
.quick-item .arrow{margin-left:auto;color:#C9C0B5;align-self:center;transition:color .18s ease,transform .18s ease}
.quick-item:hover .arrow{color:var(--c-primary);transform:translateX(2px)}
@media(max-width:900px){.quick-grid{grid-template-columns:1fr}}
@media(max-width:520px){
  .quick-main .body{padding:20px}
  .quick-item{padding:16px 16px;gap:12px}
}

/* ---------- 重点说明大卡 ---------- */
.feature-card{
  position:relative;overflow:hidden;border-radius:var(--radius-cover);
  min-height:280px;display:flex;align-items:flex-end;
  box-shadow:0 26px 60px -34px rgba(20,23,31,.5);
}
.feature-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.feature-card::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(100deg,rgba(20,23,31,.9) 0%,rgba(20,23,31,.6) 48%,rgba(244,81,30,.35) 100%);
}
.feature-inner{position:relative;z-index:2;padding:40px 46px;color:#fff;max-width:760px}
.feature-inner .fc-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.12em;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.34);
  border-radius:999px;padding:5px 14px;margin-bottom:16px;
}
.feature-inner h3{font-size:clamp(21px,2.4vw,28px);line-height:1.4;margin-bottom:12px}
.feature-inner p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.85);max-width:46em}
.feature-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.feature-list li{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  border-radius:999px;padding:6px 14px;color:#fff;
}
.feature-list i{color:var(--c-amber);font-size:11px}
@media(max-width:768px){.feature-inner{padding:28px 22px}}

/* ---------- FAQ ---------- */
.faq-group + .faq-group{margin-top:36px}
.faq-group h3{
  font-size:18px;font-weight:700;color:var(--c-ink);
  display:flex;align-items:center;gap:10px;margin-bottom:14px;
  scroll-margin-top:110px;
}
.faq-group h3 .g-dot{
  width:10px;height:10px;border-radius:50%;background:var(--grad-brand);flex:0 0 auto;
}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:18px;
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item+.faq-item{margin-top:12px}
.faq-item:hover{border-color:#F3D2C2}
.faq-item.is-open{box-shadow:var(--shadow-2);border-color:#F3D2C2}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;
  padding:18px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  color:var(--c-ink);font-size:16.5px;font-weight:700;line-height:1.55;
  transition:color .18s ease;
}
.faq-q:hover{color:var(--c-primary)}
.faq-num{
  flex:0 0 32px;width:32px;height:32px;border-radius:10px;
  background:#FDF4EC;color:var(--c-primary);
  display:grid;place-items:center;
  font-family:var(--font-num);font-size:16px;font-weight:700;letter-spacing:.02em;
  transition:background .2s ease,color .2s ease;
}
.faq-item.is-open .faq-num{background:var(--grad-brand);color:#fff}
.faq-icon{margin-left:auto;color:#B9AFA3;font-size:14px;transition:transform .2s ease,color .2s ease}
.faq-item.is-open .faq-icon{transform:rotate(180deg);color:var(--c-primary)}
.faq-a{display:none;padding:0 22px 22px 70px;color:var(--c-ink-2);font-size:14.5px;line-height:1.85}
.faq-item.is-open .faq-a{display:block}
.faq-a p+p{margin-top:10px}
.faq-note{
  margin-top:14px;background:#FDF4EC;border-left:3px solid var(--c-primary);
  border-radius:0 12px 12px 0;padding:12px 16px;font-size:13.5px;color:var(--c-ink-2);
}
.faq-note strong{color:var(--c-primary);font-weight:700}
@media(max-width:640px){
  .faq-q{padding:16px 16px;gap:12px;font-size:15.5px}
  .faq-a{padding:0 16px 18px 16px}
}

/* ---------- 相关分类 ---------- */
.relate-box{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-cover);
  padding:32px 34px;box-shadow:var(--shadow-1);
}
.relate-box h2{font-size:20px;margin-bottom:6px}
.relate-box .sub{font-size:14px;color:var(--c-muted);margin-bottom:20px}
.relate-pills{display:flex;flex-wrap:wrap;gap:12px}
.relate-pill{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 22px;border-radius:999px;background:#FBF7F2;
  border:1px solid var(--c-line);font-size:14px;font-weight:600;color:var(--c-ink-2);
  transition:transform .18s ease,border-color .18s ease,color .18s ease,background .18s ease,box-shadow .18s ease;
}
.relate-pill i{font-size:13px;color:var(--c-primary)}
.relate-pill:hover{transform:translateY(-2px);background:#fff;border-color:var(--c-primary);color:var(--c-primary);box-shadow:var(--shadow-2)}
@media(max-width:768px){.relate-box{padding:24px 20px}}
@media(max-width:520px){.relate-pill{width:100%;justify-content:flex-start}}

/* ---------- 收藏分享 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-cover);
  background:var(--grad-brand);color:#fff;padding:48px 52px;
  box-shadow:0 30px 70px -40px rgba(244,81,30,.9);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(20,23,31,.86) 0%,rgba(20,23,31,.52) 60%,rgba(20,23,31,.3) 100%);
}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-text h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35;margin-bottom:10px}
.cta-text p{font-size:14.5px;color:rgba(255,255,255,.85);max-width:34em;line-height:1.8}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.cta-actions .stat-badge{background:rgba(20,23,31,.72);border:1px solid rgba(255,255,255,.24)}
@media(max-width:900px){.cta-band{padding:34px 26px}.cta-actions{width:100%}}
@media(max-width:520px){
  .cta-actions .btn{width:100%}
}

/* ---------- 页脚 ---------- */
.site-footer{background:#14171F;color:rgba(243,237,230,.78);margin-top:88px;padding:64px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1.15fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:#fff;margin-bottom:8px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin:0 0 14px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:6px}
.footer-col a{color:rgba(243,237,230,.72);font-size:14px;line-height:2;transition:color .18s ease}
.footer-col a:hover{color:var(--c-primary-2)}
.footer-col p{font-size:14px;line-height:1.9;color:rgba(243,237,230,.7);margin-bottom:10px}
.footer-about{font-size:14px;line-height:1.9;color:rgba(243,237,230,.72);margin:12px 0 14px}
.footer-bottom{
  margin-top:44px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(243,237,230,.55);
}
@media(max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{padding:52px 0 20px;margin-top:64px}
}
@media(max-width:639px){
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
  html{scroll-behavior:auto}
  .quick-main:hover,.quick-item:hover,.pill:hover,.relate-pill:hover,.btn:hover{transform:none}
}