/* roulang page: index */
:root{
  --brand:#0E4B44;
  --brand-900:#082F2B;
  --brand-600:#17685E;
  --brand-100:#DDEBE7;
  --accent:#E96A2E;
  --accent-100:#FDE7DA;
  --gold:#D9A431;
  --bg:#F6F3ED;
  --surface:#FFFFFF;
  --ink:#10211F;
  --text:#22312F;
  --muted:#6B7A77;
  --line:#E4DED3;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(16,33,31,.04), 0 12px 28px -18px rgba(16,33,31,.28);
  --sh-2:0 2px 4px rgba(16,33,31,.06), 0 20px 40px -20px rgba(16,33,31,.34);
  --sh-3:0 24px 56px -24px rgba(16,33,31,.38);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--accent)}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--ink)}
h1{font-size:40px;line-height:1.25;font-weight:700}
h2{font-size:30px;line-height:1.3;font-weight:700}
h3{font-size:22px;line-height:1.4;font-weight:600}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
::selection{background:var(--brand-100);color:var(--brand-900)}

.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.sec{padding:88px 0}
.sec-tight{padding:64px 0}
.sec-head{margin-bottom:32px}
.sec-head h2{position:relative;padding-bottom:14px}
.sec-head h2::after{content:"";position:absolute;left:0;bottom:0;width:48px;height:2px;background:var(--brand);border-radius:2px}
.sec-head .sec-sub{margin-top:12px;color:var(--muted);font-size:15px;line-height:1.75;max-width:760px}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.txt-link{font-size:14px;font-weight:600;border-bottom:1.5px solid currentColor;padding-bottom:2px}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#F6F3ED;border-bottom:1px solid var(--line)}
.brand-row{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:9px;background:var(--brand);
  position:relative;display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark i{display:block;width:12px;height:12px;background:var(--gold);border-radius:3px;transform:rotate(45deg)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:0}
.brand-text span{font-size:11px;color:var(--muted);letter-spacing:.14em}
.head-search{flex:1 1 auto;max-width:420px;position:relative;display:flex;align-items:center}
.head-search input{
  width:100%;height:40px;border:1px solid var(--line);background:var(--surface);
  border-radius:999px;padding:0 44px 0 18px;font-size:14px;color:var(--text);
  transition:border-color .18s var(--ease), box-shadow .18s var(--ease);
}
.head-search input::placeholder{color:#9AA6A3}
.head-search input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(23,104,94,.14);outline:none}
.head-search svg{position:absolute;right:16px;width:18px;height:18px;stroke:var(--muted);fill:none;stroke-width:1.6}
.head-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-radius:var(--r-btn);
  font-size:14px;font-weight:600;line-height:1;padding:12px 20px;border:1px solid transparent;
  cursor:pointer;transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.btn-primary-x{background:var(--brand);color:#fff}
.btn-primary-x:hover{background:var(--brand-600);color:#fff;transform:translateY(-1px)}
.btn-primary-x:active{transform:translateY(0);background:var(--brand-900)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:rgba(14,75,68,.08);color:var(--brand-900);transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#d15d24;color:#fff;transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:13px}
.btn-pill{border-radius:999px}

.chan-row{border-top:1px solid var(--line)}
.chan-scroll{display:flex;align-items:stretch;height:48px;overflow-x:auto;scrollbar-width:none}
.chan-scroll::-webkit-scrollbar{display:none}
.chan-link{
  display:inline-flex;align-items:center;padding:0 20px;font-size:15px;font-weight:500;color:var(--muted);
  border-bottom:3px solid transparent;white-space:nowrap;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.chan-link:hover{background:rgba(14,75,68,.06);color:var(--brand-900)}
.chan-link.active{color:var(--brand-900);font-weight:700;border-bottom-color:var(--brand);background:rgba(14,75,68,.08)}
.chan-note{margin-left:auto;display:inline-flex;align-items:center;padding:0 20px;font-size:12px;color:var(--muted);white-space:nowrap}
.nav-toggle{display:none;background:transparent;border:1px solid var(--line);border-radius:10px;width:40px;height:40px;align-items:center;justify-content:center;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--surface)}
.mobile-drawer a{display:block;padding:16px 4px;font-size:17px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line)}
.mobile-drawer a.active{color:var(--brand);border-left:3px solid var(--brand);padding-left:12px}

/* ---------- Hero ---------- */
.hero{padding:72px 0 88px}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.16em;color:var(--brand);font-weight:700;margin-bottom:18px}
.hero-eyebrow i{width:20px;height:2px;background:var(--accent);display:block}
.hero h1{margin-bottom:18px}
.hero-sub{font-size:17px;line-height:1.8;color:var(--muted);margin-bottom:26px;max-width:540px}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.chips{display:flex;flex-wrap:wrap;gap:10px}
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);font-size:13px;color:var(--text);
}
.chip-solid{background:var(--brand-100);border-color:transparent;color:var(--brand-900);font-weight:600}
.hero-media{position:relative;border-radius:var(--r-card);overflow:hidden;height:400px;background:var(--brand-100);box-shadow:var(--sh-2)}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(150deg,rgba(14,75,68,.42),rgba(8,47,43,.18) 55%,rgba(8,47,43,.62))}
.hero-media-tag{
  position:absolute;right:16px;bottom:16px;z-index:2;background:var(--surface);color:var(--brand-900);
  font-size:12px;font-weight:700;letter-spacing:.02em;padding:8px 12px;border-radius:6px;
}
.hero-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:36px;border-top:1px solid var(--line);padding-top:24px}
.metric b{display:block;font-size:26px;font-weight:700;color:var(--brand);letter-spacing:.02em;line-height:1.3}
.metric span{font-size:13px;color:var(--muted)}

/* ---------- 频道条 ---------- */
.chanbar{padding:0 0 64px}
.chanbar-inner{display:flex;gap:10px;overflow-x:auto;padding:16px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);scrollbar-width:none}
.chanbar-inner::-webkit-scrollbar{display:none}
.tag-link{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line);font-size:14px;color:var(--text);white-space:nowrap;
  transition:border-color .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease);
}
.tag-link:hover{border-color:var(--brand);background:rgba(14,75,68,.06);color:var(--brand-900)}
.tag-link.on{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}

/* ---------- 合集目录 ---------- */
.catalog-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 48px}
.cat-item{
  display:flex;align-items:center;gap:18px;padding:22px 12px 22px 0;border-bottom:1px solid var(--line);
  position:relative;transition:transform .18s var(--ease),background-color .18s var(--ease);
}
.cat-item::before{content:"";position:absolute;left:-12px;top:12px;bottom:12px;width:3px;background:var(--brand);opacity:0;transition:opacity .18s var(--ease)}
.cat-item:hover{transform:translateX(4px);background:rgba(14,75,68,.035)}
.cat-item:hover::before{opacity:1}
.cat-num{font-size:24px;font-weight:300;color:var(--gold);letter-spacing:.06em;min-width:42px;font-variant-numeric:tabular-nums}
.cat-body{flex:1 1 auto;min-width:0}
.cat-body h3{font-size:18px;line-height:1.45;margin-bottom:4px;font-weight:600}
.cat-body small{font-size:13px;color:var(--muted)}
.cat-arrow{flex:0 0 auto;color:var(--muted);transition:color .18s var(--ease),transform .18s var(--ease)}
.cat-item:hover .cat-arrow{color:var(--accent);transform:translateX(3px)}

/* ---------- 精选条目 ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  transition:border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
  box-shadow:var(--sh-1);height:100%;
}
.card:hover{border-color:rgba(14,75,68,.4);transform:translateY(-3px);box-shadow:var(--sh-2)}
.card-img{position:relative;overflow:hidden;background:var(--brand-100)}
.card-img img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.card:hover .card-img img{transform:scale(1.04)}
.card-big{grid-column:span 2}
.card-big .card-img{aspect-ratio:16/9}
.card-body{padding:22px}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;
  background:var(--brand-100);color:var(--brand-900);font-size:13px;font-weight:600}
.card-body h3{margin:12px 0 10px;font-size:18px;line-height:1.45;font-weight:600}
.card-body h3 a{color:var(--ink)}
.card-body h3 a:hover{color:var(--accent)}
.card-body p{font-size:15px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:16px}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid var(--line);padding-top:14px;font-size:13px;color:var(--muted)}
.card-foot time{letter-spacing:.02em}
.minor-list{display:grid;gap:24px;align-content:start}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;height:100%}
.news-card .thumb{aspect-ratio:4/3;border-radius:var(--r-img);overflow:hidden;background:var(--brand-100);margin-bottom:16px}
.news-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.news-card:hover .thumb img{transform:scale(1.04)}
.news-card h3{font-size:18px;line-height:1.45;font-weight:600;margin-bottom:10px;flex:0 0 auto}
.news-card h3 a{color:var(--ink)}
.news-card h3 a:hover{color:var(--accent)}
.news-card .ex{font-size:15px;line-height:1.75;color:var(--muted);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;border-top:1px solid var(--line);padding-top:14px;font-size:13px;color:var(--muted)}
.empty-state{grid-column:1/-1;background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-card);
  padding:32px 24px;text-align:center;max-height:240px}
.empty-state img{width:120px;height:88px;object-fit:cover;border-radius:var(--r-img);margin:0 auto 16px;opacity:.75}
.empty-state p{font-size:15px;color:var(--muted);margin-bottom:16px}

/* ---------- 相关推荐轨道 ---------- */
.rail{display:flex;gap:20px;overflow-x:auto;padding:4px 4px 20px;scroll-snap-type:x mandatory;scrollbar-width:thin}
.rail::-webkit-scrollbar{height:6px}
.rail::-webkit-scrollbar-thumb{background:var(--line);border-radius:6px}
.rail-item{flex:0 0 calc(25% - 15px);scroll-snap-align:start;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:20px;transition:border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease)}
.rail-item:hover{border-color:rgba(14,75,68,.4);transform:translateY(-3px);box-shadow:var(--sh-2)}
.rail-item span{font-size:12px;color:var(--gold);letter-spacing:.14em;font-weight:700}
.rail-item h3{font-size:17px;line-height:1.5;margin:10px 0 8px;font-weight:600}
.rail-item p{font-size:14px;color:var(--muted);line-height:1.7;margin:0}

/* ---------- 深色 CTA ---------- */
.cta-band{background:var(--ink);color:#E7EDEB;padding:56px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:26px;margin-bottom:8px}
.cta-inner p{color:#A9B8B5;font-size:15px;margin:0}
.icon-row{display:flex;gap:12px}
.icon-btn{width:36px;height:36px;border-radius:999px;border:1px solid rgba(255,255,255,.28);background:transparent;
  color:#E7EDEB;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),border-color .18s var(--ease)}
.icon-btn:hover{background:var(--accent);border-color:var(--accent);color:#fff;transform:translateY(-2px)}
.icon-btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}

/* ---------- FAQ ---------- */
.acc-item{border:1px solid var(--line);border-radius:var(--r-card);background:var(--surface);margin-bottom:12px;overflow:hidden}
.acc-head{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  padding:20px 22px;background:transparent;border:0;font-size:17px;font-weight:600;color:var(--ink);cursor:pointer}
.acc-head .plus{flex:0 0 auto;width:20px;height:20px;position:relative}
.acc-head .plus::before,.acc-head .plus::after{content:"";position:absolute;background:var(--brand);border-radius:2px}
.acc-head .plus::before{left:0;top:9px;width:20px;height:2px}
.acc-head .plus::after{left:9px;top:0;width:2px;height:20px;transition:transform .18s var(--ease)}
.acc-item.open .acc-head .plus::after{transform:scaleY(0)}
.acc-body{max-height:0;overflow:hidden;transition:max-height .25s var(--ease)}
.acc-item.open .acc-body{max-height:420px}
.acc-inner{padding:0 22px 22px 22px;font-size:15px;line-height:1.8;color:var(--muted);border-left:3px solid transparent}
.acc-item.open .acc-inner{border-left-color:var(--brand);padding-left:19px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#C7D5D2;border-top:1px solid rgba(255,255,255,.08)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;padding:64px 0 40px}
.foot-grid > div{border-right:1px solid rgba(255,255,255,.1);padding-right:32px}
.foot-grid > div:last-child{border-right:0;padding-right:0}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.foot-brand .brand-mark{background:rgba(255,255,255,.12)}
.foot-brand b{color:#fff;font-size:16px;font-weight:700}
.site-footer p{font-size:14px;line-height:1.8;color:#9FB1AE;margin:0}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;letter-spacing:.02em}
.foot-links{list-style:none;padding:0;margin:0}
.foot-links li{margin-bottom:12px}
.foot-links a{color:#B7C6C3;font-size:14px}
.foot-links a:hover{color:var(--accent)}
.sub-form{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.sub-form input{flex:1 1 160px;height:42px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:14px}
.sub-form input::placeholder{color:#8A9C99}
.sub-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(233,106,46,.22)}
.foot-social{display:flex;gap:10px;margin-top:20px}
.copyright{border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;justify-content:space-between;
  gap:16px;flex-wrap:wrap;font-size:13px;color:#8A9C99}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-grid{grid-template-columns:8fr 4fr;gap:36px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .rail-item{flex:0 0 calc(33.333% - 14px)}
}
@media (max-width:991px){
  h1{font-size:32px}
  h2{font-size:26px}
  .sec{padding:72px 0}
  .hero{padding:48px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-media{height:260px}
  .head-search{display:none}
  .catalog-grid{grid-template-columns:1fr;gap:0}
  .feat-grid{grid-template-columns:1fr}
  .card-big{grid-column:span 1}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
  .foot-grid > div{border-right:0;padding-right:0}
}
@media (max-width:767px){
  body{font-size:16px}
  .wrap{padding:0 20px}
  .sec{padding:56px 0}
  h1{font-size:28px;line-height:1.3}
  h2{font-size:24px}
  h3{font-size:20px}
  .brand-row{height:56px;gap:12px}
  .head-actions{display:none}
  .nav-toggle{display:inline-flex}
  .chan-note{display:none}
  .news-grid{grid-template-columns:1fr}
  .rail-item{flex:0 0 78%}
  .hero-metrics{grid-template-columns:1fr 1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .foot-grid{grid-template-columns:1fr}
  .empty-state{padding:24px 16px}
}
@media (max-width:575px){
  h1{font-size:26px}
  .hero-media{height:210px}
  .hero-metrics{grid-template-columns:1fr 1fr;gap:12px}
  .metric b{font-size:22px}
  .card-body{padding:16px}
  .acc-head{padding:16px}
  .copyright{flex-direction:column;gap:8px}
}

/* roulang page: category1 */
:root{
  --brand:#0E4B44;
  --brand-900:#082F2B;
  --brand-600:#17685E;
  --brand-100:#DDEBE7;
  --accent:#E96A2E;
  --accent-100:#FDE7DA;
  --gold:#D9A431;
  --bg:#F6F3ED;
  --surface:#FFFFFF;
  --ink:#10211F;
  --text:#22312F;
  --muted:#6B7A77;
  --line:#E4DED3;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(16,33,31,.04), 0 12px 28px -18px rgba(16,33,31,.28);
  --shadow-2:0 2px 4px rgba(16,33,31,.06), 0 20px 40px -20px rgba(16,33,31,.34);
  --shadow-3:0 24px 56px -24px rgba(16,33,31,.38);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em;line-height:1.35;}
h1{font-size:40px;font-weight:700;line-height:1.25;}
h2{font-size:30px;font-weight:700;line-height:1.3;}
h3{font-size:22px;font-weight:600;line-height:1.4;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;}
button,input{font-family:inherit;font-size:inherit;}
button{background:none;border:none;cursor:pointer;color:inherit;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;font-size:15px;font-weight:600;line-height:1.2;
  border-radius:var(--radius-btn);border:1px solid transparent;
  transition:background-color .18s ease-out,color .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
  white-space:nowrap;
}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:#d1581f;transform:translateY(-1px);}
.btn-accent:active{transform:translateY(0);}
.btn-brand{background:var(--brand);color:#fff;}
.btn-brand:hover{background:var(--brand-600);transform:translateY(-1px);}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:rgba(14,75,68,.08);}
.btn-sm{padding:8px 16px;font-size:14px;}
.btn-pill{border-radius:999px;}
.icon-btn{
  width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.35);
  display:inline-flex;align-items:center;justify-content:center;
  transition:background-color .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.icon-btn:hover{background:var(--accent);border-color:var(--accent);transform:translateY(-2px);}

/* ---------- 头部 ---------- */
.site-header{position:relative;z-index:60;}
.brandbar{background:var(--surface);border-bottom:1px solid var(--line);}
.brandbar-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-600));
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark i{width:13px;height:13px;border:2px solid #fff;border-radius:4px;display:block;transform:rotate(45deg);}
.brand-text b{display:block;font-size:17px;font-weight:700;line-height:1.2;color:var(--ink);}
.brand-text small{display:block;font-size:12px;color:var(--muted);line-height:1.6;letter-spacing:.04em;}
.search-box{
  flex:1 1 auto;max-width:420px;margin-left:auto;display:flex;align-items:center;gap:8px;
  border:1px solid var(--line);border-radius:999px;background:var(--bg);
  height:40px;padding:0 16px;transition:border-color .18s ease-out;
}
.search-box:focus-within{border-color:var(--brand);}
.search-box svg{width:18px;height:18px;fill:none;stroke:var(--muted);stroke-width:1.5;stroke-linecap:round;flex:0 0 auto;}
.search-box input{flex:1;border:none;background:transparent;outline:none;font-size:14px;color:var(--text);min-width:0;}
.search-box input::placeholder{color:var(--muted);}
.brand-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;align-items:center;justify-content:center;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.chanbar{
  position:sticky;top:0;z-index:55;background:var(--surface);
  border-bottom:1px solid transparent;transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.chanbar.is-stuck{border-bottom-color:var(--line);box-shadow:0 8px 24px -20px rgba(16,33,31,.6);}
.chan-inner{display:flex;align-items:center;gap:16px;}
.chan-scroll{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.chan-scroll::-webkit-scrollbar{display:none;}
.chan-link{
  display:inline-flex;align-items:center;height:48px;padding:0 16px;
  font-size:15px;color:var(--text);white-space:nowrap;
  border-bottom:3px solid transparent;transition:background-color .16s ease-out,color .16s ease-out;
}
.chan-link:hover{background:var(--brand-100);}
.chan-link.active{color:var(--brand);font-weight:700;border-bottom-color:var(--brand);background:rgba(14,75,68,.08);}
.chan-note{margin-left:auto;font-size:13px;color:var(--muted);white-space:nowrap;padding-right:4px;}

.nav-drawer{display:none;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow-2);}
.nav-drawer.open{display:block;}
.drawer-inner{padding:12px 24px 20px;display:flex;flex-direction:column;}
.drawer-link{font-size:18px;font-weight:600;padding:14px 0;border-bottom:1px solid var(--line);color:var(--ink);}
.drawer-link.active{color:var(--brand);}

/* ---------- 分类页头 ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--brand-100);}
.page-hero-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:.9;}
.page-hero-mask{position:absolute;inset:0;background:linear-gradient(135deg,rgba(8,47,43,.88),rgba(14,75,68,.78));}
.page-hero-inner{
  position:relative;z-index:2;padding:74px 0 68px;
  display:grid;grid-template-columns:1fr auto;gap:40px;align-items:end;
}
.crumb{font-size:13px;color:rgba(255,255,255,.72);margin-bottom:20px;}
.crumb a:hover{color:#fff;}
.crumb span{margin:0 8px;opacity:.6;}
.hero-tag{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--accent-100);background:rgba(233,106,46,.22);
  border:1px solid rgba(233,106,46,.5);border-radius:6px;padding:4px 10px;margin-bottom:16px;
}
.page-hero h1{color:#fff;margin-bottom:16px;}
.page-hero .hero-desc{color:rgba(255,255,255,.86);font-size:16px;line-height:1.85;max-width:660px;margin-bottom:24px;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;}
.hero-chips .chip{
  font-size:13px;color:#fff;border:1px solid rgba(255,255,255,.38);
  background:rgba(255,255,255,.08);border-radius:999px;padding:6px 14px;
}
.hero-stats{display:flex;gap:28px;padding-bottom:6px;}
.hero-stats .stat{text-align:center;min-width:80px;}
.hero-stats .stat b{display:block;font-size:26px;font-weight:700;color:#fff;letter-spacing:.02em;line-height:1.2;}
.hero-stats .stat span{font-size:12px;color:rgba(255,255,255,.7);letter-spacing:.04em;}

/* ---------- 通用板块 ---------- */
.sec{padding:88px 0;}
.sec-tight{padding:64px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px;}
.sec-head .sec-title h2{margin-bottom:12px;}
.sec-head .sec-title h2::after{content:"";display:block;width:48px;height:3px;border-radius:2px;background:var(--brand);margin-top:12px;}
.sec-head .sec-title p{font-size:15px;color:var(--muted);max-width:640px;margin:0;}
.sec-head .sec-more{font-size:15px;font-weight:600;color:var(--brand);border-bottom:1.5px solid var(--brand);padding-bottom:2px;transition:color .18s ease-out,border-color .18s ease-out;}
.sec-head .sec-more:hover{color:var(--accent);border-color:var(--accent);}
.sec-surface{background:var(--surface);}

/* ---------- 核验要点 ---------- */
.point-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.point-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 24px;box-shadow:var(--shadow-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.point-card:hover{transform:translateY(-3px);border-color:rgba(14,75,68,.4);box-shadow:var(--shadow-2);}
.point-num{font-size:26px;font-weight:700;color:var(--gold);letter-spacing:.02em;line-height:1;margin-bottom:16px;}
.point-card h3{font-size:18px;font-weight:600;margin-bottom:10px;line-height:1.45;}
.point-card p{font-size:15px;line-height:1.75;color:var(--muted);margin:0;}

/* ---------- 适用场景 ---------- */
.scene-wrap{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.scene-left h2{margin-bottom:16px;}
.scene-left h2::after{content:"";display:block;width:48px;height:3px;border-radius:2px;background:var(--brand);margin-top:12px;}
.scene-left p{font-size:16px;color:var(--muted);line-height:1.85;}
.scene-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.scene-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.scene-item:hover{transform:translateY(-3px);border-color:rgba(14,75,68,.4);box-shadow:var(--shadow-2);}
.scene-item b{display:block;font-size:16px;color:var(--ink);margin-bottom:8px;}
.scene-item span{font-size:14px;color:var(--muted);line-height:1.75;display:block;}

/* ---------- 流程 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.flow-item{position:relative;padding-top:22px;border-top:3px solid var(--brand-100);transition:border-color .2s ease-out;}
.flow-item:hover{border-top-color:var(--brand);}
.flow-item .flow-num{font-size:13px;font-weight:700;color:var(--gold);letter-spacing:.08em;display:block;margin-bottom:10px;}
.flow-item h3{font-size:18px;font-weight:600;margin-bottom:10px;line-height:1.45;}
.flow-item p{font-size:14px;color:var(--muted);line-height:1.8;margin:0;}

/* ---------- 入口条目卡片 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.entry-card{
  display:flex;gap:18px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:16px;box-shadow:var(--shadow-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.entry-card:hover{transform:translateY(-3px);border-color:rgba(14,75,68,.4);box-shadow:var(--shadow-2);}
.entry-thumb{
  flex:0 0 240px;height:160px;border-radius:var(--radius-img);overflow:hidden;background:var(--brand-100);
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;box-shadow:inset 0 0 0 1px rgba(255,255,255,.35);}
.entry-card:hover .entry-thumb img{transform:scale(1.03);}
.entry-body{display:flex;flex-direction:column;justify-content:space-between;min-width:0;padding:4px 4px 4px 0;}
.entry-body h3{font-size:18px;font-weight:600;line-height:1.45;margin-bottom:10px;}
.entry-body .entry-sum{
  font-size:14px;line-height:1.75;color:var(--muted);margin:0 0 14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--muted);}
.badge-cat{
  font-size:13px;font-weight:600;color:var(--brand);background:var(--brand-100);
  border-radius:6px;padding:3px 10px;white-space:nowrap;
}

/* ---------- 精选组合 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.feature-main{grid-column:span 2;position:relative;border-radius:var(--radius-card);overflow:hidden;min-height:360px;background:var(--brand-900);}
.feature-main img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.72;}
.feature-main .feature-overlay{
  position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:flex-end;
  padding:36px;background:linear-gradient(180deg,rgba(8,47,43,0) 30%,rgba(8,47,43,.92) 100%);
}
.feature-main h3{color:#fff;font-size:24px;margin:12px 0 10px;line-height:1.4;}
.feature-main p{color:rgba(255,255,255,.82);font-size:15px;line-height:1.8;max-width:640px;margin:0 0 14px;}
.feature-main .entry-foot{color:rgba(255,255,255,.7);}
.feature-small{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;}
.feature-small:hover{transform:translateY(-3px);border-color:rgba(14,75,68,.4);box-shadow:var(--shadow-2);}
.feature-small .fs-img{height:180px;overflow:hidden;background:var(--brand-100);}
.feature-small .fs-img img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.feature-small:hover .fs-img img{transform:scale(1.03);}
.feature-small .fs-body{padding:20px;}
.feature-small h3{font-size:18px;margin-bottom:10px;line-height:1.45;}
.feature-small p{font-size:14px;color:var(--muted);line-height:1.75;margin:0 0 14px;}
.badge-light{background:rgba(255,255,255,.16);color:#fff;border-radius:6px;padding:3px 10px;font-size:13px;font-weight:600;}

/* ---------- 相关分类 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.rel-card{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;transition:transform .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.rel-card:hover{transform:translateY(-3px);border-color:rgba(14,75,68,.4);box-shadow:var(--shadow-2);}
.rel-card h3{font-size:18px;margin-bottom:8px;}
.rel-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.7;}
.rel-arrow{width:36px;height:36px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;flex:0 0 auto;transition:background-color .18s ease-out,border-color .18s ease-out,color .18s ease-out;}
.rel-arrow svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.rel-card:hover .rel-arrow{background:var(--accent);border-color:var(--accent);color:#fff;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion-item{border:1px solid var(--line);border-radius:var(--radius-card)!important;margin-bottom:14px;overflow:hidden;background:var(--surface);}
.accordion-button{
  font-size:17px;font-weight:600;color:var(--ink);background:var(--surface);
  padding:20px 24px;box-shadow:none!important;border-left:3px solid transparent;
}
.accordion-button:not(.collapsed){color:var(--brand);background:var(--surface);border-left-color:var(--brand);}
.accordion-button::after{width:16px;height:16px;background-size:16px;}
.accordion-body{padding:4px 24px 22px;font-size:15px;line-height:1.8;color:var(--muted);}

/* ---------- 收藏分享 CTA ---------- */
.cta-bar{background:var(--ink);border-top:1px solid rgba(233,106,46,.35);}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:48px 0;}
.cta-inner h2{color:#fff;font-size:24px;margin-bottom:10px;}
.cta-inner p{color:rgba(255,255,255,.7);font-size:15px;margin:0;max-width:560px;}
.cta-actions{display:flex;gap:14px;align-items:center;flex:0 0 auto;}
.cta-actions .icon-btn{color:#fff;position:relative;}
.tip{
  position:absolute;bottom:calc(100% + 8px);left:50%;transform:translateX(-50%);
  background:var(--surface);color:var(--ink);font-size:12px;padding:4px 10px;border-radius:6px;
  white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .2s ease-out;
}
.tip.show{opacity:1;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.76);padding:64px 0 28px;position:relative;}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,rgba(233,106,46,0),rgba(233,106,46,.8),rgba(233,106,46,0));}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px;}
.foot-grid > div + div{border-left:1px solid rgba(255,255,255,.12);padding-left:32px;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.foot-brand .brand-mark{width:32px;height:32px;border-radius:9px;}
.foot-brand b{color:#fff;font-size:17px;font-weight:700;}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;letter-spacing:.02em;}
.foot-links li{margin-bottom:12px;}
.foot-links a{font-size:14px;color:rgba(255,255,255,.7);transition:color .18s ease-out;}
.foot-links a:hover{color:var(--accent);}
.foot-social{display:flex;gap:10px;margin-top:20px;color:rgba(255,255,255,.8);}
.sub-form{display:flex;gap:8px;margin-top:14px;}
.sub-form input{
  flex:1;min-width:0;height:38px;border-radius:10px;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:14px;outline:none;
  transition:border-color .18s ease-out;
}
.sub-form input::placeholder{color:rgba(255,255,255,.45);}
.sub-form input:focus{border-color:var(--accent);}
.copyright{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;font-size:13px;color:rgba(255,255,255,.52);flex-wrap:wrap;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .point-grid{grid-template-columns:repeat(2,1fr);}
  .flow-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .scene-wrap{grid-template-columns:1fr;gap:32px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .foot-grid > div + div{padding-left:24px;}
}
@media (max-width:991px){
  h1{font-size:34px;}
  h2{font-size:26px;}
  .search-box{display:none;}
  .entry-thumb{flex:0 0 200px;height:140px;}
  .entry-grid{grid-template-columns:1fr;}
  .feature-main{min-height:300px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .hero-stats{display:none;}
  .page-hero-inner{grid-template-columns:1fr;}
}
@media (max-width:767px){
  body{font-size:16px;}
  h1{font-size:28px;line-height:1.3;}
  h2{font-size:22px;}
  h3{font-size:19px;}
  .wrap{padding:0 20px;}
  .brandbar-inner{height:56px;gap:12px;}
  .brand-text small{display:none;}
  .brand-actions .btn-ghost{display:none;}
  .nav-toggle{display:flex;}
  .chan-note{display:none;}
  .chan-inner{padding-right:0;}
  .chan-scroll{mask-image:linear-gradient(90deg,#000 88%,transparent 100%);-webkit-mask-image:linear-gradient(90deg,#000 88%,transparent 100%);}
  .sec{padding:56px 0;}
  .sec-tight{padding:48px 0;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px;}
  .point-grid,.scene-list,.flow-grid,.rel-grid,.feature-grid{grid-template-columns:1fr;}
  .feature-main{grid-column:span 1;padding:0;}
  .feature-main .feature-overlay{padding:24px;}
  .page-hero-inner{padding:48px 0 44px;}
  .page-hero .hero-desc{font-size:15px;}
  .entry-card{flex-direction:column;padding:14px;}
  .entry-thumb{flex:none;width:100%;height:170px;}
  .entry-body{padding:4px 4px 2px;}
  .cta-inner{padding:36px 0;}
  .cta-actions .icon-btn{width:40px;height:40px;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-grid > div + div{border-left:none;padding-left:0;border-top:1px solid rgba(255,255,255,.12);padding-top:24px;}
  .site-footer{padding-top:48px;}
}
@media (max-width:520px){
  .entry-thumb{height:150px;}
  .feature-small .fs-img{height:150px;}
  .hero-chips .chip{font-size:12px;padding:5px 12px;}
}

/* roulang page: article */
:root{
  --brand:#0E4B44;
  --brand-900:#082F2B;
  --brand-600:#17685E;
  --brand-100:#DDEBE7;
  --accent:#E96A2E;
  --accent-600:#D55C22;
  --accent-100:#FDE7DA;
  --gold:#D9A431;
  --bg:#F6F3ED;
  --surface:#FFFFFF;
  --ink:#10211F;
  --text:#22312F;
  --muted:#6B7A77;
  --line:#E4DED3;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(16,33,31,.04),0 12px 28px -18px rgba(16,33,31,.28);
  --shadow-2:0 2px 4px rgba(16,33,31,.06),0 20px 40px -20px rgba(16,33,31,.34);
  --shadow-3:0 24px 56px -24px rgba(16,33,31,.38);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:17px;line-height:1.9;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--accent)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:#172724;line-height:1.3}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.no-scroll{overflow:hidden}

/* ---------- 顶部品牌行 ---------- */
.site-header{position:relative;z-index:40}
.brand-bar{background:var(--surface);border-bottom:1px solid var(--line)}
.brand-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand-600),var(--brand-900));
}
.brand-mark i{width:12px;height:12px;border-radius:3px;background:var(--accent);display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:19px;font-weight:700;color:var(--brand-900);letter-spacing:0}
.brand-text small{font-size:12px;color:var(--muted);letter-spacing:.02em}
.brand-search{position:relative;flex:1 1 auto;max-width:400px;display:flex;align-items:center}
.brand-search svg{position:absolute;left:14px;width:18px;height:18px;fill:none;stroke:var(--muted);stroke-width:1.5;pointer-events:none}
.brand-search input{
  width:100%;height:40px;border:1px solid var(--line);border-radius:999px;
  padding:0 16px 0 42px;font-size:14px;color:var(--text);background:#FBF9F5;outline:none;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background .18s ease-out;
}
.brand-search input::placeholder{color:#9BA8A5}
.brand-search input:focus{border-color:var(--brand-600);background:#fff;box-shadow:0 0 0 3px rgba(23,104,94,.14)}
.brand-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.menu-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
  background:var(--surface);align-items:center;justify-content:center;cursor:pointer;
}
.menu-toggle span{display:block;width:16px;height:2px;background:var(--brand-900);position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--brand-900)}
.menu-toggle span::before{top:-5px}
.menu-toggle span::after{top:5px}

/* ---------- 频道行 ---------- */
.chan-bar{position:sticky;top:0;z-index:35;background:rgba(246,243,237,.98);border-bottom:1px solid transparent;transition:border-color .18s ease-out,box-shadow .18s ease-out}
.chan-bar.stuck{border-bottom-color:var(--line);box-shadow:0 10px 26px -22px rgba(16,33,31,.55)}
.chan-wrap{display:flex;align-items:center;gap:8px;height:48px}
.chan-scroll{display:flex;align-items:center;flex:1 1 auto;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.chan-scroll::-webkit-scrollbar{display:none}
.chan-link{position:relative;height:48px;display:inline-flex;align-items:center;padding:0 14px;font-size:15px;font-weight:500;color:var(--muted);white-space:nowrap;transition:color .18s ease-out,background .18s ease-out}
.chan-link:hover{color:var(--brand);background:rgba(14,75,68,.05)}
.chan-link.active{color:var(--brand-900);font-weight:700;background:rgba(14,75,68,.08)}
.chan-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;background:var(--accent);border-radius:3px 3px 0 0}
.chan-note{font-size:13px;color:var(--muted);white-space:nowrap;padding-left:16px;border-left:1px solid var(--line)}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);background:var(--surface);
  z-index:60;transform:translateX(102%);transition:transform .22s ease-out;
  box-shadow:var(--shadow-3);display:flex;flex-direction:column;padding:20px;
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-head span{font-size:15px;font-weight:700;color:var(--brand-900)}
.drawer-close{width:32px;height:32px;border:1px solid var(--line);border-radius:8px;background:transparent;font-size:18px;line-height:1;color:var(--muted);cursor:pointer}
.drawer-list{list-style:none;padding:12px 0 0;flex:1 1 auto}
.drawer-list a{display:block;padding:14px 4px;font-size:18px;font-weight:600;color:var(--text);border-bottom:1px solid var(--line)}
.drawer-list a.active{color:var(--brand);border-left:3px solid var(--accent);padding-left:12px}
.drawer-foot{padding-top:16px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;border-radius:var(--radius-btn);cursor:pointer;
  text-align:center;text-decoration:none;transition:all .18s ease-out;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-600);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px -16px rgba(14,75,68,.8)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px -16px rgba(233,106,46,.85)}
.btn-accent:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:rgba(14,75,68,.08);color:var(--brand)}
.btn-line{background:transparent;border-color:var(--line);color:var(--text)}
.btn-line:hover{border-color:var(--brand);color:var(--brand);background:rgba(14,75,68,.05)}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:9px}
.icon-btn{
  width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.28);
  background:transparent;display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .18s ease-out;padding:0;
}
.icon-btn svg{width:18px;height:18px;fill:none;stroke:#E7EFEC;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.icon-btn:hover{background:var(--accent);border-color:var(--accent);transform:translateY(-2px)}

/* ---------- 面包屑与状态条 ---------- */
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:22px 0 0;font-size:13px;color:var(--muted);line-height:1.7}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:#C8C1B4}
.crumb .cur{color:var(--text);max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.status-strip{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:14px;padding:10px 14px;border:1px solid var(--line);border-radius:10px;background:#FBF9F5;font-size:13px;color:var(--muted)}
.status-strip .live-dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(233,106,46,.16)}
.status-strip b{color:var(--brand-900);font-weight:600}

/* ---------- 文章头 ---------- */
.art-head{padding:26px 0 0}
.art-kicker{display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 10px;border-radius:6px;background:var(--brand-100);color:var(--brand);font-size:13px;font-weight:600}
.art-head h1{font-size:40px;line-height:1.25;margin:16px 0 18px;letter-spacing:-.01em;color:#14231F}
.art-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--muted)}
.art-meta .dot{width:4px;height:4px;border-radius:50%;background:#C8C1B4;display:inline-block}
.art-meta .meta-badge{background:var(--brand-100);color:var(--brand);border-radius:6px;padding:3px 9px;font-weight:600;font-size:13px;line-height:1.5}
.art-rule{height:1px;background:rgba(14,75,68,.12);margin:22px 0 0}

/* ---------- 布局 ---------- */
.art-layout{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:40px;align-items:start;padding:8px 0 0}
.side-col{position:sticky;top:76px;display:flex;flex-direction:column;gap:20px}

/* ---------- 正文 ---------- */
.article-body{padding:26px 0 0;font-size:17px;line-height:1.9;letter-spacing:.01em;max-width:760px}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{font-size:30px;line-height:1.3;margin:48px 0 16px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.article-body h3{font-size:22px;line-height:1.4;font-weight:600;margin:32px 0 12px}
.article-body h4{font-size:18px;line-height:1.45;font-weight:600;margin:24px 0 10px}
.article-body ul{margin:0 0 1.2em;padding-left:1.4em;list-style:disc}
.article-body ul li{margin-bottom:.5em}
.article-body ol{margin:0 0 1.2em;list-style:none;counter-reset:num;padding-left:0}
.article-body ol > li{counter-increment:num;position:relative;padding-left:38px;margin-bottom:.7em}
.article-body ol > li::before{
  content:counter(num,decimal-leading-zero);position:absolute;left:0;top:0;
  font-size:15px;font-weight:600;color:var(--gold);letter-spacing:.02em;line-height:1.9;
}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;border-left:3px solid var(--brand);
  background:rgba(14,75,68,.06);border-radius:0 10px 10px 0;color:#31423F;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-img);margin:24px auto;border:1px solid rgba(255,255,255,.35)}
.article-body a{color:var(--brand);text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:4px}
.article-body a:hover{color:var(--accent)}
.article-body strong{color:#14231F}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-body th{background:var(--brand-100);color:var(--brand-900);font-weight:600}
.article-body code{background:#EFE9DE;border-radius:6px;padding:2px 6px;font-size:15px;color:#31423F}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

/* ---------- 空态 ---------- */
.article-empty{padding:40px 0 8px;text-align:center;max-width:760px}
.article-empty img{width:100%;max-width:320px;margin:0 auto 20px;border-radius:var(--radius-img);border:1px solid var(--line)}
.article-empty h2{font-size:24px;margin-bottom:10px}
.article-empty p{color:var(--muted);font-size:15px;line-height:1.8;margin-bottom:22px}

/* ---------- 侧栏卡片 ---------- */
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow-1)}
.side-card h3{font-size:16px;line-height:1.4;display:flex;align-items:center;gap:9px;margin-bottom:14px}
.side-card h3::before{content:"";width:3px;height:15px;border-radius:2px;background:var(--accent);flex:0 0 auto}
.side-card h3 small{font-size:12px;font-weight:400;color:var(--muted);margin-left:auto;letter-spacing:.02em}
.toc-list{list-style:none}
.toc-list li{margin:0}
.toc-list a{display:block;padding:8px 10px;border-left:2px solid var(--line);font-size:14px;line-height:1.6;color:var(--muted);transition:all .16s ease-out}
.toc-list a:hover,.toc-list a.on{color:var(--brand);border-left-color:var(--accent);background:rgba(14,75,68,.05)}
.hot-list{list-style:none}
.hot-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line)}
.hot-list li:last-child{border-bottom:0;padding-bottom:0}
.hot-list .num{flex:0 0 22px;font-size:14px;font-weight:700;color:var(--gold);letter-spacing:.02em;line-height:1.6}
.hot-list a{font-size:14px;line-height:1.6;color:var(--text);font-weight:500}
.hot-list a:hover{color:var(--accent)}
.hot-list span.meta{display:block;font-size:12px;color:var(--muted);margin-top:5px}
.side-sub p{font-size:13px;line-height:1.75;color:var(--muted);margin-bottom:12px}
.side-sub form{display:flex;gap:8px}
.side-sub input{flex:1 1 auto;height:40px;border:1px solid var(--line);border-radius:var(--radius-btn);padding:0 12px;font-size:14px;color:var(--text);background:#FBF9F5;outline:none;min-width:0}
.side-sub input:focus{border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(23,104,94,.14);background:#fff}

/* ---------- CTA 深色条 ---------- */
.cta-strip{
  position:relative;overflow:hidden;margin:64px 0 0;padding:28px 32px;border-radius:16px;
  background:var(--ink);color:#E7EFEC;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-strip::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--accent),rgba(233,106,46,0))}
.cta-strip h3{color:#fff;font-size:22px;line-height:1.4;margin-bottom:6px}
.cta-strip p{margin:0;font-size:14px;line-height:1.75;color:#9FB3AE;max-width:520px}
.cta-actions{display:flex;gap:10px;flex-wrap:wrap}

/* ---------- 上一篇 / 下一篇 ---------- */
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:40px 0 0}
.pn-card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:18px 20px;box-shadow:var(--shadow-1);transition:all .18s ease-out}
.pn-card:hover{transform:translateY(-3px);border-color:rgba(14,75,68,.4);box-shadow:var(--shadow-2);color:inherit}
.pn-card span{font-size:12px;color:var(--muted);letter-spacing:.02em}
.pn-card b{display:block;font-size:16px;line-height:1.5;margin-top:8px;color:#172724;font-weight:600}
.pn-card.next{text-align:right}

/* ---------- 区块标题 ---------- */
.sec-block{margin-top:72px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;flex-wrap:wrap}
.sec-head h2{font-size:30px;line-height:1.3}
.sec-head h2::after{content:"";display:block;width:48px;height:3px;border-radius:2px;background:var(--brand);margin-top:14px}
.sec-head p{font-size:14px;color:var(--muted);margin:0;max-width:520px;line-height:1.75}
.text-link{font-size:15px;font-weight:600;color:var(--brand);text-decoration:underline;text-decoration-thickness:1.5px;text-underline-offset:4px}
.text-link:hover{color:var(--accent)}

/* ---------- 相关推荐 ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rec-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);transition:all .18s ease-out;color:inherit}
.rec-card:hover{transform:translateY(-3px);border-color:rgba(14,75,68,.4);box-shadow:var(--shadow-2);color:inherit}
.rec-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-100)}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.rec-card:hover .rec-thumb img{transform:scale(1.04)}
.rec-body{padding:16px 18px 18px;display:flex;flex-direction:column;flex:1 1 auto}
.rec-body h3{font-size:18px;line-height:1.45;font-weight:600;margin-bottom:8px}
.rec-body p{font-size:15px;line-height:1.75;color:var(--muted);margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted)}
.rec-foot .meta-badge{background:var(--brand-100);color:var(--brand);border-radius:6px;padding:3px 9px;font-weight:600}

/* ---------- FAQ ---------- */
.faq .accordion-item{border:1px solid var(--line);border-radius:var(--radius-card)!important;margin-bottom:12px;overflow:hidden;background:var(--surface)}
.faq .accordion-button{
  font-size:17px;font-weight:600;color:#172724;background:var(--surface);
  padding:18px 20px;box-shadow:none!important;border-radius:0!important;line-height:1.5;
}
.faq .accordion-button:not(.collapsed){color:var(--brand-900);background:rgba(14,75,68,.05);border-left:3px solid var(--brand)}
.faq .accordion-button::after{background-image:none;content:"＋";font-size:18px;font-weight:600;color:var(--accent);width:auto;height:auto;transform:none;transition:transform .18s ease-out}
.faq .accordion-button:not(.collapsed)::after{content:"－";transform:none}
.faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--accent);outline-offset:-2px}
.faq .accordion-body{font-size:15px;line-height:1.8;color:var(--muted);padding:2px 20px 20px;border-left:3px solid var(--accent)}

/* ---------- 返回入口 ---------- */
.back-row{margin-top:40px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;border-top:1px solid var(--line)}
.back-row p{margin:0;font-size:14px;color:var(--muted)}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;margin-top:88px;background:var(--brand-900);color:#B9CCC7}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,rgba(233,106,46,0),rgba(233,106,46,.7),rgba(233,106,46,0))}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:36px;padding:64px 0 40px}
.foot-grid > div + div{border-left:1px solid rgba(255,255,255,.1);padding-left:32px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.foot-brand b{font-size:19px;font-weight:700;color:#fff}
.foot-brand .brand-mark{width:32px;height:32px;border-radius:9px}
.site-footer p{font-size:14px;line-height:1.8;color:#9FB3AE;margin:0 0 16px;max-width:340px}
.site-footer h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.foot-links{list-style:none}
.foot-links li{margin-bottom:10px}
.foot-links a{font-size:14px;color:#B9CCC7}
.foot-links a:hover{color:var(--accent)}
.foot-social{display:flex;gap:10px}
.sub-form{display:flex;gap:8px}
.sub-form input{flex:1 1 auto;height:40px;min-width:0;border:1px solid rgba(255,255,255,.2);border-radius:10px;background:rgba(255,255,255,.06);color:#fff;font-size:14px;padding:0 14px;outline:none}
.sub-form input::placeholder{color:#8BA09B}
.sub-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(233,106,46,.2)}
.copyright{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;font-size:13px;color:#8BA09B}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .brand-search{max-width:300px}
  .art-head h1{font-size:34px}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991.98px){
  .brand-search{display:none}
  .brand-inner{height:56px}
  .menu-toggle{display:inline-flex}
  .brand-actions .btn-ghost{display:none}
  .chan-note{display:none}
  .art-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .side-col{position:static}
  .article-body{max-width:100%;padding-top:20px}
  .art-head h1{font-size:30px}
  .sec-head h2,.article-body h2{font-size:26px}
  .prevnext{grid-template-columns:1fr}
  .pn-card.next{text-align:left}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;padding:48px 0 32px}
  .foot-grid > div + div{border-left:0;padding-left:0}
  .cta-strip{padding:24px}
}
@media (max-width:767.98px){
  .wrap{padding:0 20px}
  .rec-grid{grid-template-columns:minmax(0,1fr)}
  .art-head h1{font-size:28px}
  .art-meta{gap:8px}
  .sec-block{margin-top:56px}
  .cta-strip{flex-direction:column;align-items:flex-start}
}
@media (max-width:575.98px){
  body{font-size:16px}
  .article-body{font-size:16.5px}
  .article-body h2{font-size:24px;margin-top:36px}
  .article-body h3{font-size:20px}
  .art-head h1{font-size:26px}
  .sec-head h2{font-size:24px}
  .rec-body h3{font-size:17px}
  .foot-grid{grid-template-columns:1fr}
  .status-strip{font-size:12.5px}
}

/* roulang page: category2 */
:root{
  --brand:#0E4B44;
  --brand-900:#082F2B;
  --brand-600:#17685E;
  --brand-100:#DDEBE7;
  --accent:#E96A2E;
  --accent-100:#FDE7DA;
  --gold:#D9A431;
  --bg:#F6F3ED;
  --surface:#FFFFFF;
  --ink:#10211F;
  --text:#22312F;
  --muted:#6B7A77;
  --line:#E4DED3;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --sh1:0 1px 2px rgba(16,33,31,.04), 0 12px 28px -18px rgba(16,33,31,.28);
  --sh2:0 2px 4px rgba(16,33,31,.06), 0 20px 40px -20px rgba(16,33,31,.34);
  --sh3:0 24px 56px -24px rgba(16,33,31,.38);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:6px;
}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.wrap{
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
  width:100%;
}
/* ---------- header ---------- */
.site-header{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  position:relative;
  z-index:40;
}
.topbar-inner{
  min-height:64px;
  display:flex;
  align-items:center;
  gap:24px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.brand-mark{
  width:38px;height:38px;
  border-radius:11px;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-600) 62%,var(--accent) 160%);
  display:grid;place-items:center;
  position:relative;
  flex:0 0 auto;
}
.brand-mark::before{
  content:"";
  width:14px;height:14px;
  border:2px solid rgba(255,255,255,.92);
  border-radius:4px;
  transform:rotate(45deg);
}
.brand-mark i{
  position:absolute;
  right:8px;bottom:8px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--gold);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text b{font-size:18px;font-weight:700;color:var(--brand-900);letter-spacing:.01em;}
.brand-text small{font-size:12px;color:var(--muted);letter-spacing:.06em;}
.topbar-search{
  flex:1 1 auto;
  max-width:340px;
  display:flex;
  align-items:center;
  gap:8px;
  border:1px solid var(--line);
  background:var(--bg);
  border-radius:999px;
  padding:6px 8px 6px 16px;
  transition:border-color .18s var(--ease), box-shadow .18s var(--ease);
}
.topbar-search:focus-within{border-color:var(--brand-600);box-shadow:0 0 0 3px rgba(23,104,94,.12);}
.topbar-search input{
  border:0;background:transparent;outline:none;
  font-size:14px;color:var(--text);width:100%;
}
.topbar-search input::placeholder{color:#9AA6A3;}
.topbar-search button{
  border:0;background:var(--brand-100);color:var(--brand-900);
  font-size:13px;padding:6px 14px;border-radius:999px;cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.topbar-search button:hover{background:var(--brand);color:#fff;}
.topbar-actions{
  margin-left:auto;
  display:flex;align-items:center;gap:10px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);
  font-size:14px;font-weight:600;
  padding:12px 22px;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
  white-space:nowrap;
}
.btn-sm{padding:9px 16px;font-size:13px;}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 12px 24px -16px rgba(233,106,46,.9);}
.btn-accent:hover{background:#d55c22;transform:translateY(-1px);color:#fff;}
.btn-accent:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:rgba(14,75,68,.08);}
.btn-solid{background:var(--brand);color:#fff;}
.btn-solid:hover{background:var(--brand-600);transform:translateY(-1px);}
.btn-pill{border-radius:999px;}
.menu-toggle{
  display:none;
  width:40px;height:40px;
  border:1px solid var(--line);
  background:var(--surface);
  border-radius:10px;
  cursor:pointer;
  align-items:center;justify-content:center;
  color:var(--brand-900);
  font-size:18px;
}
.chanwrap{
  position:sticky;top:0;z-index:35;
  background:var(--surface);
  border-top:1px solid var(--line);
  transition:box-shadow .2s var(--ease);
}
.chanwrap.is-stuck{box-shadow:0 10px 24px -20px rgba(16,33,31,.55);}
.chan-inner{display:flex;align-items:center;gap:20px;}
.chan-scroll{
  display:flex;align-items:center;gap:6px;
  overflow-x:auto;
  -ms-overflow-style:none;scrollbar-width:none;
  min-height:48px;
  flex:1 1 auto;
}
.chan-scroll::-webkit-scrollbar{display:none;}
.chan-link{
  position:relative;
  padding:0 16px;
  line-height:48px;
  font-size:15px;font-weight:500;
  color:var(--muted);
  white-space:nowrap;
  border-radius:8px 8px 0 0;
  transition:color .18s var(--ease),background .18s var(--ease);
}
.chan-link:hover{background:var(--brand-100);color:var(--brand-900);}
.chan-link.active{
  color:var(--brand-900);
  font-weight:700;
  background:rgba(14,75,68,.08);
}
.chan-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;
  background:var(--brand);border-radius:2px 2px 0 0;
}
.chan-note{
  font-size:13px;color:var(--muted);
  white-space:nowrap;
  padding-left:18px;
  border-left:1px solid var(--line);
  height:22px;line-height:22px;
  flex:0 0 auto;
}
.mobile-drawer{
  border-top:1px solid var(--line);
  background:var(--surface);
}
.drawer-links{display:flex;flex-direction:column;padding:8px 0 16px;}
.drawer-links a{
  padding:14px 0;
  font-size:18px;font-weight:600;
  color:var(--brand-900);
  border-bottom:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;
}
.drawer-links a:last-child{border-bottom:0;}
/* ---------- category head ---------- */
.cat-head{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  padding:64px 0 56px;
}
.cat-head-inner{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:48px;
  align-items:start;
}
.cat-head-main{
  border-left:3px solid var(--brand);
  padding-left:26px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--brand-600);
  letter-spacing:.08em;
  margin-bottom:16px;
}
.eyebrow .dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(233,106,46,.16);
}
.cat-head h1{
  font-size:40px;
  line-height:1.25;
  font-weight:700;
  color:var(--brand-900);
  margin-bottom:20px;
  max-width:18em;
}
.cat-head h1 em{
  font-style:normal;
  color:var(--accent);
}
.cat-desc{
  font-size:16px;
  line-height:1.85;
  color:var(--muted);
  max-width:44em;
}
.cat-tags{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:24px;
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;
  padding:7px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--bg);
  color:var(--brand-900);
  transition:border-color .18s var(--ease),background .18s var(--ease),color .18s var(--ease);
}
.chip:hover{border-color:var(--brand);background:var(--brand-100);}
.chip.is-accent{background:var(--accent-100);border-color:rgba(233,106,46,.35);color:#a2441a;}
.cat-stat{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--bg);
  padding:8px 22px;
  box-shadow:var(--sh1);
}
.cat-stat .stat{
  padding:18px 0;
  border-bottom:1px solid var(--line);
}
.cat-stat .stat:last-child{border-bottom:0;}
.cat-stat b{
  display:block;
  font-size:26px;
  line-height:1.2;
  font-weight:700;
  color:var(--brand);
  letter-spacing:.02em;
}
.cat-stat span{
  display:block;
  font-size:13px;
  color:var(--muted);
  margin-top:6px;
}
/* ---------- sections ---------- */
.sec{padding:88px 0;}
.sec-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:40px;
}
.sec-head h2{
  font-size:30px;line-height:1.3;font-weight:700;color:var(--brand-900);
  padding-bottom:14px;
  position:relative;
}
.sec-head h2::after{
  content:"";position:absolute;left:0;bottom:0;
  width:48px;height:3px;background:var(--brand);border-radius:2px;
}
.sec-head p{
  font-size:14px;color:var(--muted);max-width:32em;text-align:right;
}
/* ---------- rank list ---------- */
.rank-list{
  border-top:1px solid var(--line);
}
.rank-item{
  display:grid;
  grid-template-columns:64px minmax(0,1fr) 190px 44px;
  align-items:center;
  gap:20px;
  padding:24px 16px 24px 8px;
  border-bottom:1px solid var(--line);
  transition:background .18s var(--ease),transform .18s var(--ease);
}
.rank-item:hover{
  background:rgba(14,75,68,.045);
  transform:translateX(4px);
}
.rank-no{
  font-size:22px;
  font-weight:300;
  color:var(--gold);
  letter-spacing:.02em;
  text-align:center;
  font-variant-numeric:tabular-nums;
}
.rank-body h3{
  font-size:18px;line-height:1.45;font-weight:600;
  color:var(--brand-900);
  margin-bottom:8px;
}
.rank-item:hover .rank-body h3{color:var(--brand-600);}
.rank-body p{
  font-size:14.5px;
  line-height:1.75;
  color:var(--muted);
}
.rank-meta{
  display:flex;flex-direction:column;align-items:flex-end;gap:8px;
}
.badge{
  display:inline-block;
  font-size:13px;
  padding:4px 10px;
  border-radius:var(--r-badge);
  background:var(--brand-100);
  color:var(--brand-900);
  font-weight:600;
  letter-spacing:.02em;
}
.rank-meta time{
  font-size:13px;
  color:var(--muted);
  letter-spacing:.02em;
}
.rank-arrow{
  width:36px;height:36px;
  border:1px solid var(--line);
  border-radius:50%;
  display:grid;place-items:center;
  color:var(--brand);
  justify-self:end;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.rank-item:hover .rank-arrow{
  background:var(--accent);border-color:var(--accent);color:#fff;
}
/* ---------- rail ---------- */
.rail{
  display:grid;
  grid-auto-flow:column;
  grid-auto-columns:minmax(276px,1fr);
  gap:24px;
  overflow-x:auto;
  padding-bottom:12px;
  scroll-snap-type:x mandatory;
  -ms-overflow-style:none;scrollbar-width:none;
}
.rail::-webkit-scrollbar{display:none;}
.rail-card{
  scroll-snap-align:start;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh1);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.rail-card:hover{transform:translateY(-3px);border-color:rgba(14,75,68,.4);box-shadow:var(--sh2);}
.rail-media{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--brand-100);
  position:relative;
}
.rail-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .35s var(--ease);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.35);
}
.rail-card:hover .rail-media img{transform:scale(1.04);}
.rail-media .tag-float{
  position:absolute;left:12px;bottom:12px;
  font-size:12px;
  padding:4px 9px;
  border-radius:var(--r-badge);
  background:rgba(8,47,43,.86);
  color:#fff;
  letter-spacing:.04em;
}
.rail-body{padding:18px 18px 20px;}
.rail-body h3{
  font-size:17px;line-height:1.45;font-weight:600;color:var(--brand-900);
  margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rail-body p{
  font-size:14px;line-height:1.75;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:16px;
}
.rail-foot{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.rail-foot a{color:var(--brand);font-weight:600;border-bottom:1.5px solid transparent;transition:color .18s var(--ease),border-color .18s var(--ease);}
.rail-foot a:hover{color:var(--accent);border-color:var(--accent);}
/* ---------- dark panel ---------- */
.dark-panel{
  background:var(--ink);
  color:#E8EFEC;
  border-radius:var(--r-card);
  padding:40px 36px;
  background-image:linear-gradient(115deg,rgba(8,47,43,.96) 0%,rgba(16,33,31,.9) 62%,rgba(8,47,43,.72) 100%),url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center;
  box-shadow:var(--sh3);
}
.status-row{
  display:flex;align-items:center;gap:10px;
  font-size:13px;color:#B9C9C4;
  letter-spacing:.06em;
  margin-bottom:22px;
}
.status-row .pulse{
  width:9px;height:9px;border-radius:50%;
  background:#FF5A3C;
  box-shadow:0 0 0 4px rgba(255,90,60,.22);
}
.dark-panel h2{
  font-size:28px;line-height:1.35;font-weight:700;color:#fff;
  margin-bottom:14px;
}
.dark-panel > p{
  font-size:15px;line-height:1.85;color:#AFC2BC;max-width:52em;
}
.stat-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;
  margin-top:34px;
  background:rgba(255,255,255,.14);
  border-radius:12px;
  overflow:hidden;
}
.stat-cell{
  background:rgba(8,47,43,.55);
  padding:22px 20px;
}
.stat-cell b{
  display:block;font-size:28px;font-weight:700;color:#fff;letter-spacing:.02em;
}
.stat-cell span{display:block;font-size:13px;color:#9FB3AD;margin-top:8px;}
/* ---------- FAQ ---------- */
.faq-acc .accordion-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--sh1);
}
.faq-acc .accordion-button{
  background:var(--surface);
  color:var(--brand-900);
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  padding:22px 24px 22px 26px;
  box-shadow:none;
  border:0;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--brand-900);
  background:var(--brand-100);
  border-left:3px solid var(--brand);
  padding-left:23px;
}
.faq-acc .accordion-button::after{
  background-image:none;
  content:"";
  width:11px;height:11px;
  border-right:2px solid var(--brand);
  border-bottom:2px solid var(--brand);
  transform:rotate(45deg);
  margin-left:auto;
  transition:transform .2s var(--ease);
}
.faq-acc .accordion-button:not(.collapsed)::after{
  transform:rotate(-135deg);
  border-color:var(--accent);
}
.faq-acc .accordion-button:focus{box-shadow:0 0 0 2px var(--accent);}
.faq-acc .accordion-body{
  padding:6px 26px 26px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--muted);
  background:var(--surface);
}
/* ---------- CTA band ---------- */
.cta-band{
  background:var(--ink);
  color:#fff;
  border-radius:var(--r-card);
  padding:36px 36px;
  display:flex;align-items:center;justify-content:space-between;
  gap:28px;
  background-image:linear-gradient(100deg,rgba(8,47,43,.95),rgba(16,33,31,.88)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  box-shadow:var(--sh3);
}
.cta-band h2{
  font-size:24px;line-height:1.4;font-weight:700;color:#fff;margin-bottom:10px;
}
.cta-band p{font-size:14.5px;color:#B9C9C4;line-height:1.8;max-width:38em;}
.cta-btns{display:flex;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:36px;height:36px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.32);
  background:transparent;
  color:#fff;
  display:grid;place-items:center;
  cursor:pointer;
  transition:background .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),color .18s var(--ease);
}
.icon-btn svg{
  width:18px;height:18px;
  fill:none;stroke:currentColor;stroke-width:1.5;
  stroke-linecap:round;stroke-linejoin:round;
}
.icon-btn:hover{
  background:var(--accent);border-color:var(--accent);
  transform:translateY(-2px);
}
/* ---------- jump chips ---------- */
.jump-box{
  border:1px dashed var(--line);
  border-radius:var(--r-card);
  background:var(--surface);
  padding:28px 30px;
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.jump-box h3{font-size:18px;font-weight:600;color:var(--brand-900);margin-bottom:6px;}
.jump-box p{font-size:14px;color:var(--muted);}
.jump-links{display:flex;gap:12px;flex-wrap:wrap;}
/* ---------- footer ---------- */
.site-footer{
  background:var(--brand-900);
  color:#C7D8D3;
  margin-top:88px;
  position:relative;
  padding-top:64px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(217,164,49,.7),transparent);
}
.foot-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.3fr;
  gap:40px;
}
.foot-grid > div{
  padding-right:32px;
  border-right:1px solid rgba(255,255,255,.12);
}
.foot-grid > div:last-child{border-right:0;padding-right:0;}
.foot-brand{
  display:flex;align-items:center;gap:10px;margin-bottom:16px;
}
.foot-brand b{font-size:18px;color:#fff;font-weight:700;letter-spacing:.01em;}
.foot-brand .brand-mark{
  width:32px;height:32px;border-radius:9px;
  background:linear-gradient(140deg,var(--brand-600),var(--accent));
}
.foot-brand .brand-mark::before{width:12px;height:12px;}
.site-footer p{font-size:14px;line-height:1.85;color:#9FB3AD;}
.site-footer h4{
  font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.04em;
}
.foot-links li{margin-bottom:12px;}
.foot-links a{
  font-size:14px;color:#B4C7C1;
  transition:color .18s var(--ease),padding-left .18s var(--ease);
}
.foot-links a:hover{color:var(--accent);padding-left:4px;}
.foot-social{display:flex;gap:10px;margin-top:20px;}
.sub-form{display:flex;gap:8px;margin-top:16px;}
.sub-form input{
  flex:1 1 auto;min-width:0;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-btn);
  padding:11px 14px;
  color:#fff;
  font-size:14px;
  outline:none;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.sub-form input::placeholder{color:#8AA09A;}
.sub-form input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(233,106,46,.2);}
.copyright{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);
  margin-top:56px;
  padding:22px 0 28px;
  font-size:13px;
  color:#8FA6A0;
}
/* ---------- responsive ---------- */
@media (max-width:1199px){
  .cat-head-inner{grid-template-columns:minmax(0,1fr) 260px;gap:32px;}
  .cat-head h1{font-size:36px;}
  .foot-grid{grid-template-columns:1.3fr 1fr 1fr;gap:32px;}
  .foot-grid > div:nth-child(3){border-right:0;padding-right:0;}
  .foot-grid > div:nth-child(4){
    grid-column:1 / -1;
    border-right:0;padding-right:0;
    border-top:1px solid rgba(255,255,255,.12);
    padding-top:28px;
  }
}
@media (max-width:991px){
  .topbar-search{display:none;}
  .menu-toggle{display:inline-flex;}
  .chan-note{display:none;}
  .cat-head{padding:48px 0 40px;}
  .cat-head-inner{grid-template-columns:minmax(0,1fr);gap:28px;}
  .cat-head h1{font-size:32px;}
  .cat-stat{display:grid;grid-template-columns:repeat(3,1fr);padding:6px 18px;}
  .cat-stat .stat{border-bottom:0;border-right:1px solid var(--line);padding:16px 8px;}
  .cat-stat .stat:last-child{border-right:0;}
  .sec{padding:72px 0;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .sec-head p{text-align:left;max-width:100%;}
  .rank-item{grid-template-columns:52px minmax(0,1fr) 44px;gap:14px;}
  .rank-meta{grid-column:2 / 3;flex-direction:row;align-items:center;justify-content:flex-start;}
  .rank-arrow{grid-row:1 / 3;align-self:center;}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .site-footer{margin-top:72px;}
}
@media (max-width:767px){
  .wrap{padding:0 20px;}
  .sec{padding:56px 0;}
  .cat-head h1{font-size:28px;line-height:1.3;}
  .cat-head-main{padding-left:18px;}
  .cat-head{padding:40px 0 34px;}
  .cat-desc{font-size:15px;}
  .sec-head h2{font-size:24px;}
  .rank-item{padding:20px 10px;grid-template-columns:44px minmax(0,1fr) 36px;gap:12px;}
  .rank-body h3{font-size:16.5px;}
  .rank-body p{font-size:14px;}
  .rail{grid-auto-columns:minmax(238px,1fr);}
  .dark-panel{padding:30px 22px;}
  .dark-panel h2{font-size:22px;}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:26px;}
  .cta-band{padding:28px 22px;}
  .cta-band h2{font-size:20px;}
  .icon-btn{width:38px;height:38px;}
  .jump-box{padding:22px 20px;flex-direction:column;align-items:flex-start;}
  .foot-grid{grid-template-columns:1fr;gap:0;}
  .foot-grid > div{
    border-right:0;padding-right:0;
    border-bottom:1px solid rgba(255,255,255,.12);
    padding-bottom:26px;margin-bottom:26px;
  }
  .foot-grid > div:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0;}
  .copyright{margin-top:32px;}
}
@media (max-width:520px){
  body{font-size:16px;}
  .brand-text small{display:none;}
  .cat-head h1{font-size:26px;}
  .cat-stat{grid-template-columns:1fr;}
  .cat-stat .stat{border-right:0;border-bottom:1px solid var(--line);}
  .cat-stat .stat:last-child{border-bottom:0;}
  .stat-grid{grid-template-columns:1fr;}
  .cta-btns{width:100%;}
  .sub-form{flex-direction:column;}
  .sub-form .btn{width:100%;}
}