/* roulang page: index */
:root{
  --ink:#0F2A25;
  --ink-2:#173A33;
  --amber:#E2601C;
  --live:#D93A2B;
  --bg:#F7F5F1;
  --card:#FFFFFF;
  --line:#E4DED4;
  --text:#3A3733;
  --muted:#6E6A63;
  --radius:16px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(15,42,37,.06);
  --shadow-2:0 14px 34px rgba(15,42,37,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-body-bg:var(--bg);
  --bs-body-color:var(--text);
  --bs-primary:#0F2A25;
  --bs-link-color:#0F2A25;
  --bs-link-hover-color:#E2601C;
  --bs-border-radius:16px;
  --bs-border-color:#E4DED4;
  --bs-font-sans-serif:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--amber);}
p{margin:0 0 1.4em;}
p:last-child{margin-bottom:0;}
h1,h2,h3,h4{color:var(--ink);margin:0;font-weight:700;letter-spacing:-.01em;}
ul,ol{padding-left:1.2em;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px;}
body .container{
  width:100%;
  max-width:1276px;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:992px){
  body{padding-left:96px;}
}

/* ============ 左侧竖向导航 ============ */
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:96px;
  background:var(--ink);
  border-right:1px solid rgba(247,245,241,.10);
  display:none;flex-direction:column;align-items:center;
  padding:22px 8px 22px;
  z-index:1040;
}
@media (min-width:992px){.side-nav{display:flex;}}
.brand{
  width:100%;text-align:center;color:#F7F5F1;
  font-weight:800;font-size:13px;line-height:1.35;letter-spacing:.01em;
  padding-bottom:18px;border-bottom:1px solid rgba(247,245,241,.12);
}
.brand:hover{color:#fff;}
.brand b{display:block;}
.brand em{display:block;font-style:normal;font-size:10px;letter-spacing:.2em;color:var(--amber);margin-top:7px;}
.side-links{list-style:none;margin:22px 0 0;padding:0;width:100%;display:flex;flex-direction:column;gap:8px;}
.side-links a{
  position:relative;display:flex;flex-direction:column;align-items:center;gap:6px;
  padding:12px 4px;border-radius:12px;font-size:12px;
  color:rgba(247,245,241,.70);text-align:center;line-height:1.3;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.side-links a i{font-size:16px;line-height:1;}
.side-links a:hover{background:rgba(247,245,241,.08);color:#fff;}
.side-links a.active{color:#fff;background:rgba(226,96,28,.14);}
.side-links a.active::before{
  content:"";position:absolute;left:-8px;top:12px;bottom:12px;width:2px;
  background:var(--amber);border-radius:2px;
}
.side-cta{margin-top:auto;width:100%;}
.side-cta .btn{width:100%;font-size:12.5px;padding:10px 6px;}

/* ============ 移动端顶栏与抽屉 ============ */
.mobile-bar{
  position:sticky;top:0;z-index:1030;
  display:flex;align-items:center;justify-content:space-between;
  background:var(--ink);color:#F7F5F1;padding:12px 16px;
  box-shadow:0 1px 2px rgba(15,42,37,.18);
}
@media (min-width:992px){.mobile-bar{display:none;}}
.mb-brand{color:#F7F5F1;font-weight:800;font-size:15px;}
.mb-brand:hover{color:var(--amber);}
.mb-toggle{
  background:transparent;border:1px solid rgba(247,245,241,.4);color:#F7F5F1;
  width:42px;height:38px;border-radius:10px;font-size:15px;
  display:flex;align-items:center;justify-content:center;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.mb-toggle:hover{background:rgba(247,245,241,.12);}
.drawer{position:fixed;inset:0;z-index:1060;visibility:hidden;opacity:0;transition:opacity .22s var(--ease);}
.drawer.open{visibility:visible;opacity:1;}
.drawer-mask{position:absolute;inset:0;background:rgba(15,42,37,.55);}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:80%;max-width:340px;
  background:var(--ink);padding:22px;overflow-y:auto;
  transform:translateX(100%);transition:transform .28s var(--ease);
  display:flex;flex-direction:column;
}
.drawer.open .drawer-panel{transform:none;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;color:#F7F5F1;}
.drawer-head strong{font-size:15px;}
.drawer-close{background:transparent;border:0;color:rgba(247,245,241,.75);font-size:20px;line-height:1;}
.drawer-close:hover{color:var(--amber);}
.drawer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px;}
.drawer-links a{
  display:flex;align-items:center;gap:12px;color:rgba(247,245,241,.82);
  font-size:16px;padding:14px 12px;border-radius:12px;
}
.drawer-links a i{width:18px;font-size:15px;color:var(--amber);}
.drawer-links a:hover{background:rgba(247,245,241,.08);color:#fff;}
.drawer-links a.active{background:rgba(226,96,28,.16);color:#fff;}
.drawer-cta{margin-top:26px;}

/* ============ 通用按钮 / 徽章 ============ */
.btn{box-shadow:none;font-weight:600;letter-spacing:.01em;transition:transform .22s var(--ease),background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);}
.btn-ink{
  background:var(--ink);border:1px solid var(--ink);color:#F7F5F1;
  border-radius:var(--radius-sm);padding:12px 22px;font-size:15px;
}
.btn-ink:hover{background:var(--amber);border-color:var(--amber);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-ink:disabled{opacity:.5;transform:none;box-shadow:none;}
.btn-line{
  background:transparent;border:1px solid var(--ink);color:var(--ink);
  border-radius:var(--radius-sm);padding:12px 22px;font-size:15px;
}
.btn-line:hover{background:var(--ink);color:#F7F5F1;transform:translateY(-2px);}
.btn-ghost{
  background:transparent;border:1px solid rgba(247,245,241,.45);color:#F7F5F1;
  border-radius:var(--radius-sm);padding:12px 22px;font-size:15px;
}
.btn-ghost:hover{background:#F7F5F1;border-color:#F7F5F1;color:var(--ink);transform:translateY(-2px);}
.btn-amber{
  background:var(--amber);border:1px solid var(--amber);color:#fff;
  border-radius:var(--radius-sm);padding:12px 22px;font-size:15px;
}
.btn-amber:hover{background:#c9521a;border-color:#c9521a;color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(226,96,28,.28);}
.btn-sm{padding:8px 16px;font-size:13.5px;}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;border-radius:999px;padding:4px 12px;line-height:1.6;
}
.badge-cat{color:var(--ink);background:#EDF1EE;border:1px solid #DCE4E0;}
.badge-soft{color:#B04A12;background:#FDF0E7;border:1px solid #F3D2BC;}
.badge-live{color:#fff;background:var(--live);border:1px solid var(--live);}
.badge-done{color:var(--muted);background:#F1EEE9;border:1px solid var(--line);}
.dot-breathe{
  width:6px;height:6px;border-radius:50%;background:#fff;display:inline-block;
  animation:breathe 1.6s ease-in-out infinite;
}
@keyframes breathe{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(1.45);}}

/* ============ 板块通用 ============ */
.sec{padding:96px 0;}
.sec-tight{padding:72px 0;}
.sec-dark{background:var(--ink);color:rgba(247,245,241,.78);}
.sec-dark h1,.sec-dark h2,.sec-dark h3{color:#F7F5F1;}
.sec-alt{background:#F1EDE6;}
.eyebrow{
  display:block;font-size:12px;font-weight:700;letter-spacing:.2em;
  color:var(--amber);margin-bottom:12px;text-transform:uppercase;
}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;flex-wrap:wrap;margin-bottom:36px;
}
.sec-title{font-size:clamp(23px,2.5vw,34px);font-weight:700;letter-spacing:-.01em;line-height:1.25;}
.sec-sub{color:var(--muted);font-size:15px;margin:10px 0 0;max-width:660px;line-height:1.8;}
.sec-dark .sec-sub{color:rgba(247,245,241,.66);}
.link-more{font-size:14px;font-weight:600;color:var(--ink);white-space:nowrap;}
.link-more i{margin-left:6px;font-size:12px;transition:transform .22s var(--ease);display:inline-block;}
.link-more:hover i{transform:translateX(4px);}
.divider{height:1px;background:var(--line);margin:0;}

/* ============ Hero ============ */
.hero{
  position:relative;color:#F7F5F1;overflow:hidden;
  padding:80px 0 72px;
  background-color:var(--ink);
  background-image:linear-gradient(115deg,rgba(15,42,37,.94) 0%,rgba(15,42,37,.82) 46%,rgba(15,42,37,.72) 100%),
    url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero-inner{display:grid;grid-template-columns:minmax(0,1fr);gap:44px;align-items:center;}
@media (min-width:992px){.hero-inner{grid-template-columns:minmax(0,1fr) 400px;gap:56px;}}
.hero h1{
  color:#fff;font-size:clamp(30px,4.4vw,50px);font-weight:800;line-height:1.16;
  letter-spacing:-.02em;margin:18px 0 18px;
}
.hero-lead{color:rgba(247,245,241,.82);font-size:17px;line-height:1.9;max-width:640px;margin-bottom:28px;}
.hero-status{display:inline-flex;align-items:center;gap:8px;}
.countdown{
  display:flex;align-items:stretch;margin:0 0 28px;
  background:rgba(247,245,241,.07);border:1px solid rgba(247,245,241,.16);
  border-radius:14px;padding:14px 6px;max-width:520px;
}
.cd-cell{flex:1;text-align:center;position:relative;padding:0 4px;}
.cd-cell+.cd-cell::before{
  content:"";position:absolute;left:0;top:14%;bottom:14%;width:1px;
  background:rgba(247,245,241,.16);
}
.cd-num{
  font-size:clamp(25px,3.4vw,46px);font-weight:800;color:#fff;line-height:1.1;
  font-variant-numeric:tabular-nums;font-feature-settings:"tnum";
  transition:opacity .16s linear;
}
.cd-num.flip{opacity:.35;}
.cd-label{font-size:12px;color:rgba(247,245,241,.6);letter-spacing:.1em;margin-top:4px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:28px;}
.hero-meta div{font-size:14px;color:rgba(247,245,241,.7);}
.hero-meta strong{display:block;color:#F7F5F1;font-size:15px;font-weight:600;margin-bottom:2px;}
.hero-cover{
  margin:0;background:#122F2A;border:1px solid rgba(247,245,241,.16);
  border-radius:var(--radius);overflow:hidden;box-shadow:0 22px 46px rgba(0,0,0,.28);
}
.hero-cover .cover-media{position:relative;aspect-ratio:16/9;background:#10302A;overflow:hidden;}
.hero-cover .cover-media img{width:100%;height:100%;object-fit:cover;}
.hero-cover .cover-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,42,37,.10) 40%,rgba(15,42,37,.72) 100%);
}
.hero-cover .cover-tag{position:absolute;left:14px;top:14px;z-index:2;}
.hero-cover figcaption{padding:18px 20px 20px;display:flex;flex-direction:column;gap:6px;}
.hero-cover figcaption strong{color:#fff;font-size:16px;font-weight:700;}
.hero-cover figcaption span{font-size:13px;color:rgba(247,245,241,.66);}

/* ============ 时间轴 ============ */
.timeline{border-top:1px solid var(--line);}
.tl-item{
  display:grid;grid-template-columns:1fr;gap:16px;
  padding:26px 0;border-bottom:1px solid var(--line);
}
@media (min-width:768px){.tl-item{grid-template-columns:170px minmax(0,1fr);gap:32px;align-items:start;}}
.tl-when{
  font-variant-numeric:tabular-nums;font-feature-settings:"tnum";
  color:var(--ink);font-weight:700;font-size:16px;letter-spacing:.01em;
}
.tl-when span{display:block;font-size:13px;font-weight:500;color:var(--muted);margin-top:4px;letter-spacing:.06em;}
.tl-card{display:flex;flex-wrap:wrap;gap:20px;align-items:flex-start;justify-content:space-between;}
.tl-thumb{
  flex:0 0 168px;width:168px;aspect-ratio:16/10;border-radius:12px;overflow:hidden;
  background:#EDE9E2;border:1px solid var(--line);
}
.tl-thumb img{width:100%;height:100%;object-fit:cover;}
.tl-body{flex:1 1 260px;min-width:220px;}
.tl-body h3{font-size:18px;font-weight:700;margin-bottom:8px;line-height:1.5;}
.tl-body p{font-size:14.5px;color:var(--muted);margin-bottom:12px;}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px;}

/* ============ 看点列表 ============ */
.hl-list{border-top:1px solid var(--line);}
.hl-item{
  display:grid;grid-template-columns:56px minmax(0,1fr);gap:20px;
  padding:24px 0;border-bottom:1px solid var(--line);
  transition:background .22s var(--ease);
}
@media (min-width:768px){.hl-item{grid-template-columns:88px minmax(0,1fr);gap:28px;}}
.hl-num{
  font-size:clamp(26px,3vw,34px);font-weight:800;line-height:1.1;
  color:rgba(15,42,37,.2);font-variant-numeric:tabular-nums;
  transition:color .22s var(--ease);
}
.hl-item:hover .hl-num{color:var(--amber);}
.hl-item h3{font-size:19px;font-weight:700;margin-bottom:8px;}
.hl-item p{font-size:15px;color:var(--muted);margin:0;max-width:760px;}

/* ============ 订阅卡 ============ */
.sub-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 28px;box-shadow:var(--shadow-1);max-width:680px;margin:0 auto;
}
.sub-card h3{font-size:21px;margin-bottom:10px;}
.sub-card .sub-note{font-size:14.5px;color:var(--muted);margin-bottom:24px;}
.form-label{font-size:13px;font-weight:600;color:var(--ink);margin-bottom:6px;}
.form-control,.form-select{
  height:48px;border-radius:var(--radius-sm);border:1px solid var(--line);
  background:#fff;color:var(--text);font-size:15px;
}
.form-control:focus,.form-select:focus{
  border-color:var(--ink);box-shadow:0 0 0 3px rgba(226,96,28,.16);
}
.form-check-input{width:16px;height:16px;margin-top:.35em;border-color:#CFC7BA;}
.form-check-input:checked{background-color:var(--ink);border-color:var(--ink);}
.form-check-input:focus{box-shadow:0 0 0 3px rgba(226,96,28,.16);}
.form-check-label{font-size:13px;color:var(--muted);line-height:1.7;}
.form-hint{font-size:12.5px;color:var(--muted);margin-top:12px;}
.form-msg{font-size:14px;margin-top:14px;display:none;}
.form-msg.ok{display:block;color:#1D6B4F;}
.form-msg.err{display:block;color:#B5321F;}

/* ============ 回放轨道 ============ */
.rail-wrap{position:relative;}
.rail{
  display:flex;gap:20px;overflow-x:auto;padding:6px 2px 20px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
  scrollbar-width:thin;
}
.rail::-webkit-scrollbar{height:6px;}
.rail::-webkit-scrollbar-thumb{background:#D6CFC4;border-radius:99px;}
.rail-card{
  flex:0 0 300px;scroll-snap-align:start;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.rail-thumb{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:#EDE9E2;}
.rail-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.rail-card:hover .rail-thumb img{transform:scale(1.04);}
.rail-dur{
  position:absolute;right:10px;bottom:10px;z-index:2;
  background:rgba(15,42,37,.82);color:#F7F5F1;font-size:12px;
  padding:3px 9px;border-radius:999px;font-variant-numeric:tabular-nums;
}
.rail-body{padding:16px 18px 18px;}
.rail-body h3{font-size:16px;line-height:1.5;margin-bottom:8px;}
.rail-body .meta{font-size:13px;color:var(--muted);margin:0;}

/* ============ 内容卡片（最新信息） ============ */
.news-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:768px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1200px){.news-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .24s var(--ease),box-shadow .24s var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.news-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:#EDE9E2;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto;gap:12px;}
.news-body h3{font-size:17.5px;font-weight:700;line-height:1.55;}
.news-body h3 a{color:var(--ink);}
.news-body h3 a:hover{color:var(--amber);}
.news-sum{
  font-size:14.5px;color:var(--muted);margin:0;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;font-size:13px;color:var(--muted);padding-top:4px;
}
.empty-box{
  border:1px dashed #D8D1C6;border-radius:var(--radius);background:#FCFBF9;
  padding:52px 24px;text-align:center;
}
.empty-box i{font-size:26px;color:#CFC7BA;display:block;margin-bottom:14px;}
.empty-box p{font-size:15px;color:var(--muted);margin:0 0 14px;}

/* ============ FAQ ============ */
.faq{max-width:900px;}
.faq .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);}
.faq .accordion-button{
  position:relative;background:transparent;color:var(--ink);
  font-size:17px;font-weight:600;padding:22px 46px 22px 0;box-shadow:none;
  border-radius:0;line-height:1.6;
}
.faq .accordion-button:not(.collapsed){color:var(--ink);background:transparent;box-shadow:none;}
.faq .accordion-button:focus{box-shadow:none;}
.faq .accordion-button::after{
  content:"";position:absolute;right:8px;top:calc(50% - 7px);
  width:14px;height:14px;margin:0;
  background:
    linear-gradient(var(--ink),var(--ink)) center/14px 2px no-repeat,
    linear-gradient(var(--ink),var(--ink)) center/2px 14px no-repeat;
  transition:transform .24s var(--ease),background .24s var(--ease);
}
.faq .accordion-button:not(.collapsed)::after{
  transform:rotate(90deg);
  background:linear-gradient(var(--amber),var(--amber)) center/14px 2px no-repeat;
}
.faq .accordion-body{padding:0 46px 24px 0;font-size:15px;line-height:1.85;color:var(--muted);}

/* ============ 底部 CTA ============ */
.cta-band{
  background-color:var(--ink);
  background-image:linear-gradient(120deg,rgba(15,42,37,.95),rgba(15,42,37,.86)),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-radius:var(--radius);padding:56px 44px;color:#F7F5F1;
  display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);line-height:1.3;margin-bottom:10px;}
.cta-band p{color:rgba(247,245,241,.76);font-size:15px;margin:0;max-width:560px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);color:rgba(247,245,241,.68);
  padding:60px 0 26px;font-size:14px;
  border-top:1px solid rgba(247,245,241,.10);
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.2fr;}}
.footer-brand{
  color:#F7F5F1;font-weight:800;font-size:17px;margin-bottom:12px;display:block;
}
.footer-brand:hover{color:var(--amber);}
.footer-grid p{font-size:13.5px;line-height:1.9;color:rgba(247,245,241,.62);margin:0;}
.footer-title{color:#F7F5F1;font-size:14px;font-weight:700;margin-bottom:14px;letter-spacing:.02em;}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:rgba(247,245,241,.68);font-size:13.5px;}
.footer-links a:hover{color:var(--amber);}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(247,245,241,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(247,245,241,.5);
}

/* ============ 滚动动效 ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease);}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  .dot-breathe{animation:none;}
  html{scroll-behavior:auto;}
  *{transition-duration:.01ms !important;}
}

/* ============ 断点微调 ============ */
@media (max-width:991.98px){
  .sec{padding:72px 0;}
  .hero{padding:60px 0 56px;}
  .cta-band{padding:40px 26px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .sec{padding:56px 0;}
  .sec-tight{padding:48px 0;}
  .hero{padding:48px 0 48px;}
  .hero-actions .btn{width:100%;}
  .countdown{max-width:100%;}
  .cd-label{font-size:11px;letter-spacing:.04em;}
  .tl-thumb{width:100%;flex:1 1 100%;}
  .news-body{padding:18px 18px 20px;}
  .cta-band h2{font-size:22px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:519.98px){
  body .container{padding-left:18px;padding-right:18px;}
  .sub-card{padding:24px 18px;}
  .hl-item{grid-template-columns:44px minmax(0,1fr);gap:14px;}
  .hl-num{font-size:24px;}
  .rail-card{flex:0 0 84%;}
}

/* roulang page: article */
:root{
  --ink:#0F2A25;
  --ink-soft:#173D35;
  --amber:#E2601C;
  --live:#D93A2B;
  --paper:#F7F5F1;
  --card:#FFFFFF;
  --line:#E4DED4;
  --text:#3A3733;
  --muted:#6E6A63;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 1px 2px rgba(15,42,37,.06);
  --shadow-hover:0 14px 34px rgba(15,42,37,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-w:104px;
  --bs-primary:#0F2A25;
  --bs-body-color:#3A3733;
  --bs-body-bg:#F7F5F1;
  --bs-border-radius:10px;
  --bs-link-color:#0F2A25;
  --bs-link-hover-color:#E2601C;
  --bs-font-sans-serif:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--amber)}
p{margin:0 0 1.4em}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:-.01em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px}
.container{
  width:100%;
  max-width:1288px;
  margin:0 auto;
  padding:0 24px;
}
.page-shell{padding-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column}
.main-area{flex:1 0 auto}
.section{padding:64px 0}
.section-tight{padding:40px 0}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;
  left:0;top:0;bottom:0;
  width:var(--nav-w);
  background:var(--ink);
  border-right:1px solid rgba(247,245,241,.10);
  display:flex;
  flex-direction:column;
  align-items:center;
  padding:22px 10px 18px;
  z-index:60;
}
.side-brand{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  width:100%;
  padding-bottom:18px;
  border-bottom:1px solid rgba(247,245,241,.12);
}
.brand-mark{
  width:38px;height:38px;
  display:grid;place-items:center;
  border-radius:11px;
  background:var(--amber);
  color:#fff;
  font-weight:800;
  font-size:17px;
  letter-spacing:.02em;
}
.brand-text{
  font-size:12px;
  line-height:1.35;
  font-weight:600;
  color:#F7F5F1;
  text-align:center;
  letter-spacing:.02em;
}
.side-brand:hover .brand-text{color:var(--amber)}
.side-menu{
  width:100%;
  margin-top:20px;
  display:flex;
  flex-direction:column;
  gap:6px;
}
.side-menu a{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:6px;
  padding:12px 4px;
  border-radius:12px;
  color:rgba(247,245,241,.72);
  font-size:12px;
  line-height:1.3;
  text-align:center;
  transition:background .24s var(--ease),color .24s var(--ease);
}
.side-menu a i{font-size:15px}
.side-menu a:hover{background:rgba(247,245,241,.08);color:#fff}
.side-menu a.active{color:#fff;background:rgba(247,245,241,.07)}
.side-menu a.active::before{
  content:"";
  position:absolute;left:-10px;top:14px;bottom:14px;
  width:2px;border-radius:2px;background:var(--amber);
}
.side-foot{margin-top:auto;width:100%}
.side-cta{
  display:block;
  width:100%;
  padding:10px 4px;
  border-radius:10px;
  background:var(--amber);
  color:#fff;
  font-size:12px;
  font-weight:600;
  text-align:center;
  line-height:1.3;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease);
}
.side-cta:hover{background:#C9521A;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover)}

/* ---------- 移动端顶部栏 + 抽屉 ---------- */
.mobile-bar{display:none}
.drawer{
  position:fixed;
  inset:0;
  z-index:120;
  background:rgba(15,42,37,.55);
  opacity:0;
  visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);
}
.drawer.open{opacity:1;visibility:visible}
.drawer-panel{
  width:78%;
  max-width:330px;
  height:100%;
  background:var(--ink);
  padding:24px 22px 30px;
  display:flex;
  flex-direction:column;
  gap:22px;
  transform:translateX(-14px);
  transition:transform .26s var(--ease);
  overflow-y:auto;
}
.drawer.open .drawer-panel{transform:none}
.drawer-top{display:flex;align-items:center;justify-content:space-between}
.drawer-brand{
  font-size:16px;
  font-weight:800;
  color:#F7F5F1;
  letter-spacing:.02em;
}
.drawer-close{
  width:36px;height:36px;
  border:1px solid rgba(247,245,241,.28);
  background:transparent;
  border-radius:9px;
  color:#F7F5F1;
  font-size:16px;
  line-height:1;
  cursor:pointer;
}
.drawer-close:hover{background:rgba(247,245,241,.1)}
.drawer-menu{display:flex;flex-direction:column;gap:4px}
.drawer-menu a{
  display:flex;
  align-items:center;
  gap:12px;
  padding:14px 12px;
  border-radius:12px;
  color:rgba(247,245,241,.82);
  font-size:15px;
  font-weight:500;
}
.drawer-menu a i{width:18px;text-align:center;color:var(--amber)}
.drawer-menu a:hover,.drawer-menu a.active{background:rgba(247,245,241,.09);color:#fff}
.drawer-cta{
  margin-top:auto;
  display:block;
  text-align:center;
  padding:13px 16px;
  border-radius:10px;
  background:var(--amber);
  color:#fff;
  font-weight:600;
  font-size:15px;
}
.drawer-cta:hover{background:#C9521A;color:#fff}

/* ---------- 按钮 ---------- */
.btn-primary-solid{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 24px;
  border:1px solid var(--ink);
  border-radius:var(--radius-sm);
  background:var(--ink);
  color:#F7F5F1;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:background .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.btn-primary-solid:hover{background:var(--amber);border-color:var(--amber);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 22px;
  border:1px solid var(--ink);
  border-radius:var(--radius-sm);
  background:transparent;
  color:var(--ink);
  font-size:15px;
  font-weight:600;
  transition:background .24s var(--ease),color .24s var(--ease),transform .24s var(--ease);
}
.btn-ghost:hover{background:var(--ink);color:#F7F5F1;transform:translateY(-2px)}
.btn-amber{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 24px;
  border:1px solid var(--amber);
  border-radius:var(--radius-sm);
  background:var(--amber);
  color:#fff;
  font-size:15px;
  font-weight:600;
  transition:background .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.btn-amber:hover{background:#C9521A;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.btn-line-amber{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:11px 22px;
  border:1px solid var(--amber);
  border-radius:var(--radius-sm);
  color:var(--amber);
  background:transparent;
  font-size:15px;
  font-weight:600;
  transition:background .24s var(--ease),color .24s var(--ease);
}
.btn-line-amber:hover{background:var(--amber);color:#fff}

/* ---------- 文章页头 ---------- */
.article-hero{
  position:relative;
  background-image:linear-gradient(115deg,rgba(15,42,37,.92),rgba(15,42,37,.74)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  color:#F7F5F1;
  padding:56px 0 50px;
  border-bottom:1px solid rgba(15,42,37,.2);
}
.article-hero::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;height:3px;
  background:linear-gradient(90deg,var(--amber),rgba(226,96,28,0));
}
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(247,245,241,.7);
  margin-bottom:20px;
}
.crumbs a{color:rgba(247,245,241,.78)}
.crumbs a:hover{color:var(--amber)}
.crumbs .sep{opacity:.5}
.crumbs .current{color:rgba(247,245,241,.95)}
.badge-cat{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 14px;
  border-radius:999px;
  border:1px solid rgba(226,96,28,.55);
  background:rgba(226,96,28,.16);
  color:#F3B78C;
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
}
.article-hero h1{
  margin:18px 0 0;
  color:#fff;
  font-size:clamp(26px,3.4vw,42px);
  font-weight:800;
  line-height:1.22;
  letter-spacing:-.02em;
  max-width:900px;
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 22px;
  margin-top:22px;
  font-size:13px;
  color:rgba(247,245,241,.72);
}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-row i{color:var(--amber)}

/* ---------- 文章布局 ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 280px;
  gap:52px;
  align-items:start;
  padding:56px 0 72px;
}
.article-main{min-width:0}
.article-body{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:40px 44px;
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  max-width:760px;
}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  position:relative;
  font-size:24px;
  font-weight:700;
  color:var(--ink);
  margin:44px 0 18px;
  padding-bottom:12px;
}
.article-body h2::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:38px;height:2px;border-radius:2px;background:var(--amber);
}
.article-body h3{font-size:20px;font-weight:600;color:var(--ink);margin:30px 0 12px}
.article-body h4{font-size:17px;font-weight:600;color:var(--ink-soft);margin:24px 0 10px}
.article-body p{margin:0 0 1.4em}
.article-body ul,.article-body ol{padding-left:24px;margin:0 0 1.4em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:.5em}
.article-body li::marker{color:var(--amber)}
.article-body blockquote{
  margin:26px 0;
  padding:16px 22px;
  border-left:3px solid var(--amber);
  background:#FBF9F5;
  border-radius:0 12px 12px 0;
  color:#4A4641;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:26px auto}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:26px 0;overflow:hidden;border-radius:12px;border:1px solid var(--line)}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left}
.article-body thead th{background:#F1EEE8;color:var(--ink);font-weight:600}
.article-body tbody tr:nth-child(even){background:#FAF9F6}
.article-body pre{
  background:#F2F0EB;
  border:1px solid var(--line);
  border-radius:12px;
  padding:16px 18px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
  margin:24px 0;
}
.article-body code{font-family:ui-monospace,Menlo,Consolas,"Courier New",monospace;font-size:.92em}
.article-body a{color:var(--ink);border-bottom:1px solid rgba(226,96,28,.5)}
.article-body a:hover{color:var(--amber)}
.tag-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:28px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.tag-row .tag-label{font-size:13px;color:var(--muted)}
.tag{
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  border:1px solid var(--line);
  border-radius:999px;
  background:#FBF9F5;
  color:var(--ink-soft);
  font-size:13px;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.tag:hover{border-color:var(--amber);color:var(--amber)}
.back-line{margin-top:22px;display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:32px;display:flex;flex-direction:column;gap:18px}
.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:22px;
}
.side-card h3{font-size:16px;font-weight:700;margin-bottom:14px;color:var(--ink)}
.side-card p{font-size:14px;color:var(--muted);margin:0 0 14px;line-height:1.8}
.side-list{display:flex;flex-direction:column;gap:2px}
.side-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:11px 4px;
  border-bottom:1px dashed var(--line);
  font-size:14px;
  color:var(--ink-soft);
}
.side-list a:last-child{border-bottom:0}
.side-list a i{color:var(--amber);font-size:12px;transition:transform .22s var(--ease)}
.side-list a:hover{color:var(--amber)}
.side-list a:hover i{transform:translateX(3px)}
.side-note{
  background:var(--ink);
  color:#F7F5F1;
  border:0;
}
.side-note h3{color:#fff}
.side-note p{color:rgba(247,245,241,.75)}
.side-note .btn-amber{width:100%;justify-content:center;margin-top:4px}

/* ---------- 空态 ---------- */
.empty-state{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:64px 32px;
  text-align:center;
  max-width:760px;
}
.empty-state .empty-ico{
  width:56px;height:56px;
  margin:0 auto 20px;
  border-radius:14px;
  border:1px solid var(--line);
  display:grid;place-items:center;
  color:var(--amber);
  font-size:20px;
  background:#FBF9F5;
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--muted);margin-bottom:22px}

/* ---------- 相关推荐 ---------- */
.related{padding:8px 0 72px}
.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:26px;font-weight:700}
.section-head p{margin:6px 0 0;font-size:14px;color:var(--muted)}
.related-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}
.rcard{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.rcard:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D6CEC0}
.rcard .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EDE9E2}
.rcard .thumb img{width:100%;height:100%;object-fit:cover}
.rcard .thumb::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,42,37,0) 45%,rgba(15,42,37,.42));
}
.rcard .body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rcard h3{font-size:18px;line-height:1.45;font-weight:700}
.rcard p{font-size:14px;color:var(--muted);margin:0;line-height:1.8}
.rcard .more{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:14px;
  font-weight:600;
  color:var(--amber);
}
.rcard .more i{transition:transform .22s var(--ease)}
.rcard:hover .more i{transform:translateX(4px)}

/* ---------- FAQ ---------- */
.faq-section{padding:0 0 72px}
.faq-wrap{max-width:860px}
.accordion-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:14px !important;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--shadow);
}
.accordion-button{
  background:var(--card);
  color:var(--ink);
  font-size:17px;
  font-weight:600;
  padding:20px 22px;
  box-shadow:none !important;
  border-radius:14px !important;
}
.accordion-button:not(.collapsed){color:var(--amber);background:#FBF7F2}
.accordion-button::after{
  background-image:none;
  content:"\2b";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:15px;
  color:var(--amber);
  width:auto;height:auto;
  transform:none;
  display:grid;place-items:center;
  margin-left:auto;
}
.accordion-button:not(.collapsed)::after{content:"\f068";transform:none}
.accordion-body{
  padding:0 22px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
}
.accordion-body p:last-child{margin-bottom:0}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--ink);
  border-radius:var(--radius);
  padding:44px 46px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  margin-bottom:72px;
}
.cta-band h2{color:#fff;font-size:26px;font-weight:700;line-height:1.35}
.cta-band p{color:rgba(247,245,241,.72);margin:8px 0 0;font-size:15px;max-width:560px}
.cta-band .btn-amber{flex:0 0 auto}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:rgba(247,245,241,.78);
  padding:56px 0 26px;
  border-top:1px solid rgba(247,245,241,.12);
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:38px;
  padding-bottom:34px;
  border-bottom:1px solid rgba(247,245,241,.12);
}
.footer-brand{
  display:inline-block;
  font-size:18px;
  font-weight:800;
  color:#fff;
  letter-spacing:.02em;
  margin-bottom:14px;
}
.footer-brand:hover{color:var(--amber)}
.site-footer p{margin:0;line-height:1.9;font-size:13.5px}
.footer-title{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
  letter-spacing:.02em;
}
.footer-links{display:flex;flex-direction:column;gap:9px}
.footer-links a{color:rgba(247,245,241,.76);font-size:13.5px}
.footer-links a:hover{color:var(--amber)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding-top:22px;
  font-size:13px;
  color:rgba(247,245,241,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-side{position:static;order:-1;flex-direction:row;flex-wrap:wrap}
  .article-side .side-card{flex:1 1 260px}
  .related-grid{grid-template-columns:1fr}
}
@media (max-width:991.98px){
  .side-nav{display:none}
  .page-shell{padding-left:0}
  .mobile-bar{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    position:sticky;
    top:0;
    z-index:80;
    padding:12px 18px;
    background:var(--ink);
    border-bottom:1px solid rgba(247,245,241,.12);
  }
  .mb-brand{font-size:16px;font-weight:800;color:#F7F5F1;letter-spacing:.02em}
  .mb-brand:hover{color:var(--amber)}
  .mb-toggle{
    width:40px;height:40px;
    display:grid;place-items:center;
    border:1px solid rgba(247,245,241,.28);
    border-radius:10px;
    background:transparent;
    color:#F7F5F1;
    font-size:16px;
    cursor:pointer;
  }
  .mb-toggle:hover{background:rgba(247,245,241,.1)}
  .article-hero{padding:36px 0 34px}
  .article-layout{padding:36px 0 52px}
  .article-body{padding:26px 22px;font-size:16.5px}
  .article-body h2{font-size:22px;margin-top:34px}
  .article-body h3{font-size:19px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:32px 26px;margin-bottom:56px}
}
@media (max-width:767.98px){
  .container{padding:0 18px}
  .section{padding:52px 0}
  .article-side{flex-direction:column}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .cta-band h2{font-size:22px}
  .cta-band .btn-amber{width:100%;justify-content:center}
}
@media (max-width:520px){
  .article-hero h1{font-size:24px}
  .article-hero{padding:30px 0 28px}
  .article-body{padding:22px 16px;font-size:16px}
  .article-body h2{font-size:21px}
  .btn-primary-solid,.btn-ghost,.btn-amber,.btn-line-amber{width:100%;justify-content:center}
  .back-line{flex-direction:column}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
}

/* roulang page: category1 */
:root{
  --ink:#0F2A25;
  --ink-soft:#16382F;
  --amber:#E2601C;
  --amber-soft:rgba(226,96,28,.12);
  --live:#D93A2B;
  --paper:#F7F5F1;
  --card:#FFFFFF;
  --line:#E4DED4;
  --text:#3A3733;
  --muted:#6E6A63;
  --radius:16px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(15,42,37,.06);
  --shadow-2:0 14px 34px rgba(15,42,37,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sidebar:92px;
  --bs-primary:#0F2A25;
  --bs-body-bg:#F7F5F1;
  --bs-body-color:#3A3733;
  --bs-border-color:#E4DED4;
  --bs-border-radius:16px;
  --bs-link-color:#0F2A25;
  --bs-link-hover-color:#E2601C;
  --bs-font-sans-serif:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .22s var(--ease)}
a:hover{color:var(--amber)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
h1{font-size:clamp(30px,4.6vw,54px);font-weight:800;line-height:1.15;letter-spacing:-.02em}
h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3}
h3{font-size:clamp(19px,1.6vw,22px);font-weight:600;line-height:1.45}
p{margin:0 0 1.4em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--amber);
  outline-offset:2px;
  border-radius:6px;
}
.container{width:100%;max-width:1120px;margin:0 auto;padding-left:28px;padding-right:28px}

/* ============ 侧边导航 ============ */
.side-nav{
  position:fixed;
  left:0;top:0;bottom:0;
  width:var(--sidebar);
  background:var(--ink);
  border-right:1px solid rgba(247,245,241,.10);
  display:flex;
  flex-direction:column;
  align-items:center;
  padding:22px 9px 18px;
  z-index:1030;
}
.side-brand{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  text-decoration:none;
  padding-bottom:18px;
  margin-bottom:14px;
  width:100%;
  border-bottom:1px solid rgba(247,245,241,.12);
}
.brand-mark{
  width:38px;height:38px;
  border-radius:11px;
  background:var(--amber);
  color:#FFF8F2;
  font-size:19px;
  font-weight:800;
  display:flex;
  align-items:center;
  justify-content:center;
  line-height:1;
}
.brand-text{
  color:#F7F5F1;
  font-size:12px;
  font-weight:700;
  line-height:1.35;
  text-align:center;
  letter-spacing:.02em;
  word-break:break-all;
}
.side-links{
  flex:1;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:6px;
  width:100%;
}
.side-link{
  position:relative;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:7px;
  padding:13px 4px;
  border-radius:11px;
  color:rgba(247,245,241,.72);
  font-size:12px;
  line-height:1.35;
  text-align:center;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.side-link i{font-size:16px}
.side-link:hover{background:rgba(247,245,241,.08);color:#FFFFFF}
.side-link.active{background:rgba(247,245,241,.07);color:#FFFFFF}
.side-link.active::before{
  content:"";
  position:absolute;
  left:-9px;
  top:13px;
  bottom:13px;
  width:2px;
  border-radius:2px;
  background:var(--amber);
}
.side-cta{
  margin-top:16px;
  width:100%;
  text-align:center;
  background:var(--amber);
  color:#FFF7F1;
  font-size:12px;
  font-weight:700;
  padding:10px 4px;
  border-radius:var(--radius-sm);
  line-height:1.3;
  transition:background .22s var(--ease),transform .22s var(--ease);
}
.side-cta:hover{background:#F0702A;color:#fff;transform:translateY(-2px)}

/* ============ 移动端顶部栏与抽屉 ============ */
.mobile-bar{
  display:none;
  position:sticky;
  top:0;
  z-index:1040;
  align-items:center;
  justify-content:space-between;
  padding:12px 18px;
  background:rgba(15,42,37,.97);
  border-bottom:1px solid rgba(247,245,241,.12);
}
.mb-brand{
  color:#F7F5F1;
  font-size:17px;
  font-weight:800;
  letter-spacing:.01em;
}
.mb-brand:hover{color:#FFFFFF}
.mb-toggle{
  width:42px;height:42px;
  border-radius:var(--radius-sm);
  border:1px solid rgba(247,245,241,.28);
  background:transparent;
  color:#F7F5F1;
  font-size:17px;
  cursor:pointer;
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.mb-toggle:hover{background:rgba(247,245,241,.12);border-color:rgba(247,245,241,.5)}
.nav-drawer{
  position:fixed;
  top:0;left:0;bottom:0;
  width:min(80%,320px);
  background:var(--ink);
  z-index:1060;
  padding:26px 22px;
  display:flex;
  flex-direction:column;
  gap:10px;
  transform:translateX(-104%);
  transition:transform .3s var(--ease);
  overflow-y:auto;
}
.nav-drawer.open{transform:translateX(0)}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:16px;
  margin-bottom:8px;
  border-bottom:1px solid rgba(247,245,241,.14);
}
.drawer-title{color:#F7F5F1;font-size:16px;font-weight:800}
.drawer-close{
  width:36px;height:36px;
  border-radius:9px;
  border:1px solid rgba(247,245,241,.28);
  background:transparent;
  color:#F7F5F1;
  cursor:pointer;
}
.drawer-link{
  display:flex;
  align-items:center;
  gap:12px;
  padding:14px 14px;
  border-radius:12px;
  color:rgba(247,245,241,.82);
  font-size:16px;
  font-weight:600;
  border:1px solid transparent;
}
.drawer-link i{font-size:15px;color:rgba(247,245,241,.55);width:18px;text-align:center}
.drawer-link:hover{background:rgba(247,245,241,.09);color:#fff}
.drawer-link.active{background:rgba(247,245,241,.09);color:#fff;border-color:rgba(226,96,28,.5)}
.drawer-link.active i{color:var(--amber)}
.drawer-cta{
  margin-top:auto;
  text-align:center;
  background:var(--amber);
  color:#FFF7F1;
  font-weight:700;
  padding:14px;
  border-radius:var(--radius-sm);
}
.drawer-cta:hover{background:#F0702A;color:#fff}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(15,42,37,.55);
  opacity:0;
  pointer-events:none;
  transition:opacity .28s var(--ease);
  z-index:1050;
}
.drawer-mask.show{opacity:1;pointer-events:auto}

/* ============ 主体 ============ */
.page-main{margin-left:var(--sidebar)}

/* Hero */
.page-hero{
  position:relative;
  padding:76px 0 56px;
  color:#F7F5F1;
  background:
    linear-gradient(180deg,rgba(15,42,37,.90) 0%,rgba(15,42,37,.76) 55%,rgba(15,42,37,.86) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid rgba(15,42,37,.2);
}
.breadcrumb-line{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:rgba(247,245,241,.66);
  margin-bottom:22px;
}
.breadcrumb-line a{color:rgba(247,245,241,.82)}
.breadcrumb-line a:hover{color:var(--amber)}
.breadcrumb-line .sep{opacity:.5}
.breadcrumb-line .current{color:rgba(247,245,241,.95)}
.badge-soft{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.04em;
  color:#FFD9C2;
  background:rgba(226,96,28,.18);
  border:1px solid rgba(226,96,28,.5);
  border-radius:999px;
  padding:6px 14px;
  margin-bottom:20px;
}
.badge-soft .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--amber);
  box-shadow:0 0 0 4px rgba(226,96,28,.22);
}
.page-hero h1{color:#FFFFFF;max-width:820px}
.hero-lead{
  margin-top:20px;
  max-width:720px;
  font-size:17px;
  line-height:1.85;
  color:rgba(247,245,241,.86);
}

/* 通用板块 */
.section{padding:96px 0}
.section-alt{background:#FFFFFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:52px}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--amber);
  margin-bottom:14px;
  text-transform:none;
}
.section-head h2{margin-bottom:16px}
.section-head p{color:var(--muted);font-size:16px;margin:0}

/* 导语区 */
.intro-grid{
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:56px;
  align-items:start;
}
.intro-grid h2{margin-bottom:20px}
.intro-text p{color:var(--text)}
.fact-list{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  padding:10px 26px;
}
.fact-list li{
  display:grid;
  grid-template-columns:26px 1fr;
  gap:12px;
  padding:16px 0;
  border-bottom:1px solid var(--line);
  font-size:15px;
  line-height:1.7;
}
.fact-list li:last-child{border-bottom:0}
.fact-list i{color:var(--amber);font-size:14px;padding-top:5px}
.fact-list strong{display:block;color:var(--ink);font-size:15px;font-weight:700;margin-bottom:2px}
.fact-list span{color:var(--muted);font-size:14px}

/* 图文 zigzag */
.zigzag{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
  padding:52px 0;
  border-top:1px solid var(--line);
}
.zigzag:first-of-type{border-top:0;padding-top:0}
.zigzag.reverse .zz-media{order:2}
.zz-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--radius);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease);
}
.zigzag:hover .zz-media img{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.badge-line{
  display:inline-block;
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--ink);
  background:var(--amber-soft);
  border:1px solid rgba(226,96,28,.32);
  border-radius:999px;
  padding:5px 13px;
  margin-bottom:16px;
}
.zz-body h3{margin-bottom:14px}
.zz-body p{color:var(--muted);font-size:15.5px}
.dot-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.dot-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  color:var(--text);
  line-height:1.7;
}
.dot-list li::before{
  content:"";
  position:absolute;
  left:2px;top:11px;
  width:6px;height:6px;
  border-radius:2px;
  background:var(--amber);
}

/* 核对清单 */
.check-list{border-top:1px solid var(--line)}
.check-item{
  display:grid;
  grid-template-columns:76px 1fr;
  gap:22px;
  align-items:start;
  padding:26px 6px;
  border-bottom:1px solid var(--line);
  transition:background .24s var(--ease),padding .24s var(--ease);
}
.check-item:hover{background:rgba(226,96,28,.04);padding-left:16px}
.check-num{
  font-family:"Inter","Noto Sans SC",system-ui,sans-serif;
  font-variant-numeric:tabular-nums;
  font-size:30px;
  font-weight:800;
  line-height:1.1;
  color:rgba(15,42,37,.20);
  letter-spacing:-.02em;
  transition:color .24s var(--ease);
}
.check-item:hover .check-num{color:var(--amber)}
.check-body h3{font-size:18px;margin-bottom:8px}
.check-body p{color:var(--muted);font-size:15px;margin:0}

/* 相关阅读 */
.read-list{border-top:1px solid var(--line)}
.read-list li{border-bottom:1px solid var(--line)}
.read-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 6px;
  color:var(--text);
  font-size:16px;
  transition:padding .24s var(--ease),color .24s var(--ease),background .24s var(--ease);
}
.read-list a:hover{padding-left:18px;color:var(--ink);background:rgba(226,96,28,.04)}
.read-list .arrow{color:var(--muted);font-size:14px;transition:transform .24s var(--ease),color .24s var(--ease)}
.read-list a:hover .arrow{transform:translateX(6px);color:var(--amber)}
.read-list .tag-mini{
  display:inline-block;
  font-size:12px;
  color:var(--muted);
  border:1px solid var(--line);
  border-radius:999px;
  padding:2px 10px;
  margin-right:12px;
}

/* FAQ */
.faq-acc .accordion-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:14px;
  overflow:hidden;
  transition:box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.faq-acc .accordion-item:hover{box-shadow:var(--shadow-1);border-color:#D8D0C3}
.faq-acc .accordion-button{
  background:var(--card);
  color:var(--ink);
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  padding:20px 24px;
  box-shadow:none;
  gap:16px;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--ink);background:var(--card)}
.faq-acc .accordion-button::after{display:none}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq-acc .accordion-button:focus-visible{outline:2px solid var(--amber);outline-offset:-4px}
.faq-acc .accordion-body{
  padding:0 24px 22px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--muted);
}
.pm{
  position:relative;
  width:16px;height:16px;flex:0 0 16px;
  margin-left:auto;
}
.pm::before,.pm::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--ink);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform .24s var(--ease),opacity .24s var(--ease),background .24s var(--ease);
}
.pm::before{width:14px;height:2px}
.pm::after{width:2px;height:14px}
.accordion-button:not(.collapsed) .pm::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.accordion-button:hover .pm::before,
.accordion-button:hover .pm::after{background:var(--amber)}

/* CTA 带 */
.cta-band{
  background:var(--ink);
  color:#F7F5F1;
  border-radius:20px;
  padding:56px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;top:-80px;
  width:280px;height:280px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(226,96,28,.28),rgba(226,96,28,0) 70%);
  pointer-events:none;
}
.cta-band h2{color:#FFFFFF;margin-bottom:14px;max-width:560px}
.cta-band p{color:rgba(247,245,241,.78);max-width:560px;margin:0;font-size:15.5px}
.btn-main{
  display:inline-flex;
  align-items:center;
  gap:9px;
  background:var(--ink);
  color:#F7F5F1;
  border:1px solid var(--ink);
  border-radius:var(--radius-sm);
  padding:13px 24px;
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:background .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease),color .24s var(--ease);
}
.btn-main:hover{
  background:var(--amber);
  border-color:var(--amber);
  color:#FFFFFF;
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
}
.btn-invert{
  background:var(--amber);
  border-color:var(--amber);
  color:#FFF7F1;
  position:relative;
  z-index:2;
}
.btn-invert:hover{background:#F0702A;border-color:#F0702A;color:#fff}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:9px;
  background:transparent;
  color:var(--ink);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:12px 22px;
  font-size:15px;
  font-weight:600;
  transition:background .24s var(--ease),border-color .24s var(--ease),color .24s var(--ease);
}
.btn-ghost:hover{background:var(--ink);border-color:var(--ink);color:#F7F5F1}

/* 页脚 */
.site-footer{
  background:var(--ink);
  color:rgba(247,245,241,.78);
  padding:76px 0 32px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:48px;
  padding-bottom:48px;
  border-top:1px solid rgba(247,245,241,.14);
  padding-top:48px;
}
.footer-brand{
  display:inline-block;
  color:#FFFFFF;
  font-size:19px;
  font-weight:800;
  margin-bottom:16px;
  letter-spacing:.01em;
}
.footer-brand:hover{color:var(--amber)}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(247,245,241,.72);margin:0}
.footer-title{
  color:#F7F5F1;
  font-size:14px;
  font-weight:700;
  letter-spacing:.06em;
  margin-bottom:16px;
}
.footer-links li{margin-bottom:11px}
.footer-links a{
  color:rgba(247,245,241,.72);
  font-size:14px;
  transition:color .22s var(--ease),padding-left .22s var(--ease);
}
.footer-links a:hover{color:var(--amber);padding-left:5px}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding-top:26px;
  border-top:1px solid rgba(247,245,241,.14);
  font-size:13px;
  color:rgba(247,245,241,.58);
}

/* 滚动入场 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* 响应式 */
@media (max-width:1199.98px){
  .intro-grid{gap:40px}
  .zigzag{gap:40px}
}
@media (max-width:991.98px){
  .mobile-bar{display:flex}
  .side-nav{display:none}
  .page-main{margin-left:0}
  .section{padding:72px 0}
  .page-hero{padding:56px 0 44px}
  .intro-grid{grid-template-columns:1fr;gap:32px}
  .zigzag{grid-template-columns:1fr;gap:26px;padding:38px 0}
  .zigzag.reverse .zz-media{order:0}
  .zigzag:first-of-type{padding-top:0}
  .cta-band{flex-direction:column;align-items:flex-start;padding:44px 32px;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .container{padding-left:20px;padding-right:20px}
  .section{padding:56px 0}
  .section-head{margin-bottom:36px}
  .page-hero{padding:44px 0 36px}
  .hero-lead{font-size:16px}
  .check-item{grid-template-columns:52px 1fr;gap:16px;padding:22px 2px}
  .check-num{font-size:24px}
  .faq-acc .accordion-button{font-size:16px;padding:17px 18px}
  .faq-acc .accordion-body{padding:0 18px 18px;font-size:15px}
  .cta-band{padding:34px 22px;border-radius:16px}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-top:36px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .site-footer{padding:56px 0 28px}
  .btn-main,.btn-ghost{width:100%;justify-content:center}
}
@media (max-width:519.98px){
  .breadcrumb-line{flex-wrap:wrap;gap:7px}
  .read-list a{padding:16px 2px;font-size:15px}
  .read-list .tag-mini{display:block;margin:0 0 6px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --ink:#0F2A25;
  --ink-2:#173E37;
  --amber:#E2601C;
  --live:#D93A2B;
  --paper:#F7F5F1;
  --card:#FFFFFF;
  --line:#E4DED4;
  --text:#3A3733;
  --muted:#6E6A63;
  --radius:16px;
  --radius-sm:10px;
  --sh-1:0 1px 2px rgba(15,42,37,.06);
  --sh-2:0 14px 34px rgba(15,42,37,.12);
  --ease:cubic-bezier(.22,.61,.36,1);
  --side:96px;
  --bs-primary:#0F2A25;
  --bs-body-color:#3A3733;
  --bs-body-bg:#F7F5F1;
  --bs-border-radius:16px;
  --bs-link-color:#0F2A25;
  --bs-link-hover-color:#E2601C;
  --bs-font-sans-serif:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",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","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:
    radial-gradient(circle at 12% 8%,rgba(226,96,28,.05),transparent 42%),
    radial-gradient(circle at 88% 0%,rgba(15,42,37,.05),transparent 38%),
    var(--paper);
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--ink);text-decoration:none}
a:hover{color:var(--amber)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em}
p{margin:0 0 1.4em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.page{margin-left:var(--side)}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section-head{margin-bottom:40px;max-width:760px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3}
.section-head h2::after{content:"";display:block;width:46px;height:3px;background:var(--amber);border-radius:2px;margin-top:14px}
.section-head p{margin-top:16px;color:var(--muted);font-size:16px}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;left:0;top:0;bottom:0;width:var(--side);
  background:var(--ink);
  border-right:1px solid rgba(247,245,241,.1);
  display:flex;flex-direction:column;align-items:center;
  padding:20px 8px 22px;gap:22px;z-index:1040;
}
.side-nav::after{
  content:"";position:absolute;right:6px;top:20px;bottom:20px;width:1px;
  background:repeating-linear-gradient(180deg,rgba(226,96,28,.45) 0 6px,transparent 6px 14px);
  opacity:.5;pointer-events:none;
}
.brand{
  display:block;width:100%;text-align:center;color:#F7F5F1;
  font-weight:800;font-size:12.5px;line-height:1.35;letter-spacing:.02em;
  padding:10px 2px;border:1px solid rgba(226,96,28,.55);border-radius:var(--radius-sm);
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.brand:hover{color:#F7F5F1;background:rgba(226,96,28,.16);border-color:var(--amber)}
.brand span{display:block}
.side-menu{width:100%;display:flex;flex-direction:column;gap:4px}
.side-menu li{position:relative}
.side-link{
  display:flex;flex-direction:column;align-items:center;gap:7px;
  padding:13px 4px;border-radius:var(--radius-sm);
  color:rgba(247,245,241,.7);font-size:12.5px;line-height:1.2;text-align:center;
  transition:background .24s var(--ease),color .24s var(--ease);
}
.side-link i{font-size:17px}
.side-link:hover{background:rgba(247,245,241,.08);color:#F7F5F1}
.side-link.active{color:#F7F5F1;background:rgba(247,245,241,.07)}
.side-link.active::before{
  content:"";position:absolute;left:-8px;top:10px;bottom:10px;width:2px;
  background:var(--amber);border-radius:2px;
}
.side-cta{
  margin-top:auto;width:100%;text-align:center;
  background:var(--amber);color:#FFF6EE;font-size:12.5px;font-weight:700;
  padding:11px 4px;border-radius:var(--radius-sm);line-height:1.35;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease);
}
.side-cta:hover{color:#fff;background:#c9500f;transform:translateY(-2px);box-shadow:var(--sh-2)}

/* ---------- 移动端顶部导航 ---------- */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:1050;
  height:62px;align-items:center;justify-content:space-between;
  padding:0 18px;background:var(--ink);border-bottom:1px solid rgba(247,245,241,.12);
}
.mb-brand{color:#F7F5F1;font-weight:800;font-size:16px;letter-spacing:.01em}
.mb-brand:hover{color:#F7F5F1}
.mb-toggle{
  width:42px;height:38px;border:1px solid rgba(247,245,241,.28);border-radius:var(--radius-sm);
  background:transparent;color:#F7F5F1;font-size:16px;
  transition:background .24s var(--ease),border-color .24s var(--ease);
}
.mb-toggle:hover{background:rgba(226,96,28,.2);border-color:var(--amber)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,42,37,.6);z-index:1055;
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s var(--ease);
}
.drawer-mask.open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:80%;max-width:340px;
  background:var(--ink);z-index:1060;padding:24px 22px;
  display:flex;flex-direction:column;gap:14px;
  transform:translateX(102%);transition:transform .3s var(--ease);
}
.nav-drawer.open{transform:none}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.drawer-brand{color:#F7F5F1;font-weight:800;font-size:17px}
.drawer-close{
  width:40px;height:38px;border-radius:var(--radius-sm);
  border:1px solid rgba(247,245,241,.26);background:transparent;color:#F7F5F1;
}
.drawer-close:hover{background:rgba(226,96,28,.2);border-color:var(--amber)}
.drawer-link{
  display:flex;align-items:center;gap:12px;
  padding:15px 14px;border-radius:var(--radius-sm);
  color:rgba(247,245,241,.82);font-size:16.5px;font-weight:600;
  border:1px solid rgba(247,245,241,.1);
  transition:background .24s var(--ease),color .24s var(--ease);
}
.drawer-link:hover,.drawer-link.active{background:rgba(226,96,28,.16);color:#F7F5F1;border-color:rgba(226,96,28,.5)}
.drawer-cta{
  margin-top:auto;display:block;text-align:center;background:var(--amber);color:#fff;
  font-weight:700;padding:14px;border-radius:var(--radius-sm);
}
.drawer-cta:hover{color:#fff;background:#c9500f}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;min-height:300px;display:flex;align-items:flex-end;
  background-size:cover;background-position:center;color:#F7F5F1;overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(150deg,rgba(15,42,37,.9),rgba(15,42,37,.72));
}
.hero-inner{position:relative;z-index:1;width:100%;padding:54px 0 44px}
.breadcrumb-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(247,245,241,.68);margin-bottom:18px;
}
.breadcrumb-line a{color:rgba(247,245,241,.78)}
.breadcrumb-line a:hover{color:var(--amber)}
.breadcrumb-line .sep{color:rgba(247,245,241,.35)}
.breadcrumb-line .current{color:#F7F5F1}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.03em;
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(226,96,28,.7);color:#FFD9BF;background:rgba(226,96,28,.14);
  margin-bottom:18px;
}
.cat-hero h1{
  color:#F7F5F1;font-size:clamp(28px,4.2vw,48px);font-weight:800;
  line-height:1.18;letter-spacing:-.02em;max-width:900px;
}
.hero-lead{
  margin-top:18px;max-width:720px;font-size:16.5px;line-height:1.8;
  color:rgba(247,245,241,.84);
}

/* ---------- 导语 ---------- */
.intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.intro-text h2{font-size:clamp(22px,2.5vw,31px);font-weight:700;line-height:1.34;margin-bottom:20px}
.intro-text p{color:var(--text);font-size:16.5px}
.intro-points{margin-top:26px;display:grid;gap:12px}
.intro-points li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--ink);line-height:1.7}
.intro-points i{color:var(--amber);font-size:14px;margin-top:6px}
.figure-frame{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);background:var(--card);padding:10px;box-shadow:var(--sh-1);
  transition:box-shadow .26s var(--ease),transform .26s var(--ease);
}
.figure-frame:hover{box-shadow:var(--sh-2);transform:translateY(-4px)}
.figure-frame img{border-radius:10px;aspect-ratio:16/10;object-fit:cover;width:100%}
.figure-frame figcaption{font-size:13px;color:var(--muted);padding:12px 6px 4px}
.figure-frame::after{
  content:"";position:absolute;inset:6px;border:1px dashed rgba(15,42,37,.14);
  border-radius:12px;pointer-events:none;
}

/* ---------- 编号步骤条 ---------- */
.steps{border-top:1px solid var(--line)}
.steps li{
  display:grid;grid-template-columns:104px 1fr;gap:28px;align-items:start;
  padding:30px 10px;border-bottom:1px solid var(--line);
  transition:background .26s var(--ease),padding .26s var(--ease);
}
.steps li:hover{background:#fff;padding-left:20px}
.step-num{
  font-family:Inter,"Segoe UI",system-ui,sans-serif;
  font-variant-numeric:tabular-nums;
  font-size:clamp(26px,3vw,38px);font-weight:800;line-height:1;color:#D8D0C3;
  transition:color .26s var(--ease);
}
.steps li:hover .step-num{color:var(--amber)}
.step-body h3{font-size:19px;font-weight:600;margin-bottom:8px}
.step-body p{font-size:15.5px;color:var(--muted);margin:0;line-height:1.8}

/* ---------- 数据条 ---------- */
.data-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--ink);border-radius:var(--radius);overflow:hidden;
  border:1px solid rgba(15,42,37,.2);
}
.data-item{
  padding:30px 24px;border-right:1px solid rgba(247,245,241,.12);
}
.data-item:last-child{border-right:0}
.data-value{
  font-family:Inter,"Segoe UI",system-ui,sans-serif;
  font-variant-numeric:tabular-nums;
  font-size:clamp(24px,2.6vw,34px);font-weight:800;color:#F7F5F1;line-height:1.1;
}
.data-value em{font-style:normal;font-size:15px;font-weight:600;color:rgba(247,245,241,.72);margin-left:6px}
.data-label{margin-top:10px;font-size:14px;font-weight:600;color:#FFD9BF}
.data-note{margin-top:6px;font-size:13px;color:rgba(247,245,241,.6);line-height:1.7}

/* ---------- 相关阅读 ---------- */
.read-list{border-top:1px solid var(--line)}
.read-list li{border-bottom:1px solid var(--line)}
.read-list a{
  display:grid;grid-template-columns:auto 1fr auto;gap:18px;align-items:center;
  padding:20px 8px;color:var(--ink);font-size:16px;font-weight:600;
  transition:padding-left .26s var(--ease),color .26s var(--ease);
}
.read-list a:hover{padding-left:20px;color:var(--amber)}
.read-list .idx{
  font-family:Inter,system-ui,sans-serif;font-variant-numeric:tabular-nums;
  font-size:13px;font-weight:700;color:var(--muted);
  border:1px solid var(--line);border-radius:8px;padding:3px 9px;background:#fff;
}
.read-list .arrow{color:var(--muted);font-size:13px;transition:transform .26s var(--ease),color .26s var(--ease)}
.read-list a:hover .arrow{transform:translateX(5px);color:var(--amber)}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 6px;font-size:17px;font-weight:600;color:var(--ink);cursor:pointer;
  transition:color .24s var(--ease);
}
.faq-q:hover{color:var(--amber)}
.faq-icon{position:relative;flex:0 0 18px;width:18px;height:18px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;
  transition:transform .28s var(--ease),background .28s var(--ease),opacity .28s var(--ease);
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-item.open .faq-icon::before{background:var(--amber)}
.faq-q:hover .faq-icon::before,.faq-q:hover .faq-icon::after{background:var(--amber)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s var(--ease)}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a p{padding:0 6px 24px;font-size:15.5px;line-height:1.85;color:var(--muted);margin:0;max-width:880px}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink);border-radius:var(--radius);
  padding:56px clamp(24px,5vw,64px);
  display:grid;grid-template-columns:1.4fr auto;gap:36px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;
  border:1px dashed rgba(226,96,28,.35);border-radius:50%;
}
.cta-band h2{color:#F7F5F1;font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35}
.cta-band p{color:rgba(247,245,241,.76);margin-top:14px;font-size:15.5px;max-width:640px}
.btn-main{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--amber);color:#FFF7F1;font-weight:700;font-size:15.5px;
  padding:14px 30px;border-radius:var(--radius-sm);border:1px solid var(--amber);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s var(--ease);
}
.btn-main:hover{color:#fff;background:#c9500f;border-color:#c9500f;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-main:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:10px;
  background:transparent;color:#F7F5F1;font-weight:600;font-size:15.5px;
  padding:13px 26px;border-radius:var(--radius-sm);border:1px solid rgba(247,245,241,.4);
  transition:background .22s var(--ease),transform .22s var(--ease);
}
.btn-ghost:hover{color:#F7F5F1;background:rgba(247,245,241,.12);transform:translateY(-2px)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);color:rgba(247,245,241,.78);
  padding:70px 0 30px;margin-top:0;
  border-top:1px solid rgba(247,245,241,.12);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:block;color:#F7F5F1;font-weight:800;font-size:19px;margin-bottom:16px}
.footer-brand:hover{color:var(--amber)}
.site-footer p{font-size:13.5px;line-height:1.85;color:rgba(247,245,241,.66);max-width:420px}
.footer-title{font-size:14px;font-weight:700;color:#F7F5F1;margin-bottom:14px;letter-spacing:.02em}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:13.5px;color:rgba(247,245,241,.72);transition:color .22s var(--ease),padding-left .22s var(--ease)}
.footer-links a:hover{color:var(--amber);padding-left:4px}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(247,245,241,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(247,245,241,.55);
}

/* ---------- 滚动动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .section{padding:80px 0}
  .intro-grid{gap:40px}
  .data-strip{grid-template-columns:repeat(2,1fr)}
  .data-item:nth-child(2){border-right:0}
  .data-item:nth-child(1),.data-item:nth-child(2){border-bottom:1px solid rgba(247,245,241,.12)}
}
@media (max-width:991.98px){
  .side-nav{display:none}
  .mobile-bar{display:flex}
  .page{margin-left:0}
  .cat-hero{min-height:260px}
  .hero-inner{padding:40px 0 34px}
  .section{padding:72px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;gap:26px;padding:44px 28px}
}
@media (max-width:767.98px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .intro-grid{grid-template-columns:1fr;gap:30px}
  .steps li{grid-template-columns:64px 1fr;gap:16px;padding:24px 4px}
  .steps li:hover{padding-left:8px}
  .data-strip{grid-template-columns:1fr}
  .data-item{border-right:0;border-bottom:1px solid rgba(247,245,241,.12)}
  .data-item:last-child{border-bottom:0}
  .faq-q{font-size:16px;padding:18px 4px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:519.98px){
  .cat-hero{min-height:230px}
  .hero-badge{font-size:12px}
  .btn-main,.btn-ghost{width:100%;justify-content:center}
  .read-list a{grid-template-columns:auto 1fr;row-gap:8px}
  .read-list .arrow{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}