/* roulang page: index */
:root{
  --c-ink:#0F2A24;
  --c-ink-2:#12332C;
  --c-accent:#FF5A1F;
  --c-accent-dark:#E24A12;
  --c-signal:#C8F02A;
  --c-bg:#F6F4EF;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFECE5;
  --c-text:#232A28;
  --c-muted:#6E7A75;
  --c-line:#E4E1DA;
  --c-ink-muted:#A9B7B1;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,26,23,.06), 0 12px 32px -18px rgba(12,26,23,.18);
  --sh-2:0 2px 6px rgba(12,26,23,.09), 0 22px 46px -22px rgba(12,26,23,.26);
  --sec:96px;
  --container:1240px;
  --font:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
p + p{margin-top:1.1em}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--sec) 0}
.section--tight{padding:64px 0}
.section--paper{background:var(--c-surface-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;font-weight:700;
  color:var(--c-accent);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);display:block}
.sec-title{
  font-size:clamp(26px,3.4vw,40px);
  font-weight:700;line-height:1.2;color:var(--c-ink);
  letter-spacing:-.01em;margin-top:14px;
}
.sec-sub{color:var(--c-muted);font-size:15px;max-width:640px;margin-top:14px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:44px;flex-wrap:wrap}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--c-ink);
  font-size:14.5px;position:relative;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:-3px;width:0;height:2px;background:var(--c-accent);
  transition:width .3s cubic-bezier(.2,.7,.2,1);
}
.text-link:hover{color:var(--c-accent)}
.text-link:hover::after{width:100%}
.text-link .arw{transition:transform .25s ease}
.text-link:hover .arw{transform:translateX(3px)}

/* ---------- Buttons ---------- */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;
  overflow:hidden;isolation:isolate;transition:color .28s ease,border-color .28s ease,transform .15s ease;
}
.btn::before{
  content:"";position:absolute;inset:0;width:0;z-index:-1;
  background:var(--c-accent-dark);transition:width .28s cubic-bezier(.2,.7,.2,1);
}
.btn:hover::before{width:100%}
.btn:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none}
.btn--primary{background:var(--c-accent);color:#fff}
.btn--primary:hover{color:#fff}
.btn--outline{background:transparent;border-color:var(--c-ink);color:var(--c-ink)}
.btn--outline:hover{color:#fff;border-color:var(--c-accent-dark)}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.6);color:#fff}
.btn--ghost:hover{color:#fff;border-color:var(--c-accent-dark)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--block{width:100%}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--c-surface-2);color:var(--c-ink);letter-spacing:.02em;
}
.badge--light{background:rgba(255,255,255,.14);color:#fff}
.badge--signal{background:rgba(200,240,42,.18);color:#3C4B12;border:1px solid rgba(200,240,42,.5)}
.dot{width:7px;height:7px;border-radius:50%;background:var(--c-signal);display:inline-block;box-shadow:0 0 0 4px rgba(200,240,42,.22)}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-ink);transition:box-shadow .24s ease}
.site-header.is-scrolled{box-shadow:0 10px 30px -18px rgba(0,0,0,.7);border-bottom:1px solid rgba(255,255,255,.08)}
.brandbar{display:flex;align-items:center;gap:22px;height:64px;transition:height .24s ease}
.site-header.is-scrolled .brandbar{height:52px}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--c-accent);
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:16px;letter-spacing:-.04em;
  flex:none;
}
.brand-name{color:#fff;font-weight:700;font-size:16.5px;letter-spacing:.01em;white-space:nowrap}
.utility{margin-left:auto;display:flex;align-items:center;gap:14px}
.search{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-btn);height:40px;padding:0 12px;transition:border-color .2s ease,background .2s ease}
.search:focus-within{border-color:var(--c-accent);background:rgba(255,255,255,.12)}
.search svg{width:16px;height:16px;stroke:var(--c-ink-muted);fill:none;stroke-width:1.8;flex:none}
.search input{background:transparent;border:0;outline:0;color:#fff;width:150px;font-size:14px}
.search input::placeholder{color:rgba(255,255,255,.45)}
.status{display:inline-flex;align-items:center;gap:8px;color:var(--c-ink-muted);font-size:13px;white-space:nowrap}
.burger{display:none;width:42px;height:42px;border-radius:10px;border:1px solid rgba(255,255,255,.2);background:transparent;align-items:center;justify-content:center;cursor:pointer}
.burger span{display:block;width:18px;height:2px;background:#fff;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#fff}
.burger span::before{top:-6px}
.burger span::after{top:6px}

.channelbar{border-top:1px solid rgba(255,255,255,.09)}
.channel-inner{display:flex;align-items:center;gap:20px;height:52px}
.channel-nav{display:flex;align-items:center;gap:4px}
.channel-link{
  position:relative;color:var(--c-ink-muted);font-size:14.5px;font-weight:600;padding:6px 12px;border-radius:8px;
  transition:color .2s ease,background .2s ease;
}
.channel-link:hover{color:#fff;background:rgba(255,255,255,.07)}
.channel-link.is-active{color:#fff}
.channel-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-1px;height:2px;background:var(--c-accent);
}
.channel-sep{width:1px;height:18px;background:rgba(255,255,255,.16);flex:none}
.hotwords{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none}
.hotwords::-webkit-scrollbar{display:none}
.hotword{
  font-size:12px;padding:3px 11px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.16);color:var(--c-ink-muted);white-space:nowrap;
  transition:color .2s ease,border-color .2s ease;
}
.hotword:hover{color:var(--c-signal);border-color:rgba(200,240,42,.55)}

/* Drawer */
.drawer{
  display:none;background:var(--c-ink-2);border-top:1px solid rgba(255,255,255,.09);
  padding:18px 0 26px;
}
.drawer.is-open{display:block}
.drawer .drawer-link{
  display:block;color:#fff;font-weight:600;padding:13px 4px;border-bottom:1px solid rgba(255,255,255,.09);
}
.drawer .drawer-search{margin:16px 0}
.drawer .drawer-search .search input{width:100%}
.drawer .drawer-hot{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 20px}

/* ---------- Hero ---------- */
.hero{position:relative;color:#fff;overflow:hidden;background:var(--c-ink)}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(15,42,36,.92),rgba(15,42,36,.55) 55%,rgba(15,42,36,.4)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.hero-inner{position:relative;z-index:2;padding:92px 0 0;min-height:78vh;display:flex;flex-direction:column}
.hero-copy{max-width:780px;padding-bottom:56px}
.hero-tag{display:inline-flex;align-items:center;gap:10px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:var(--r-pill);padding:5px 14px;font-size:12.5px;letter-spacing:.04em;color:#EAF1EE}
.hero h1{
  font-size:clamp(32px,5vw,56px);font-weight:800;line-height:1.12;letter-spacing:-.02em;margin-top:22px;
}
.hero h1 em{font-style:normal;color:var(--c-accent);position:relative;white-space:nowrap}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:.04em;height:6px;background:rgba(255,90,31,.28);border-radius:3px;
}
.hero-sub{font-size:17px;line-height:1.85;color:#D7E1DD;margin-top:20px;max-width:640px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.stats{
  margin-top:auto;display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  border-top:1px solid rgba(255,255,255,.16);position:relative;z-index:2;
}
.stat{padding:26px 24px 30px;border-right:1px solid rgba(255,255,255,.12)}
.stat:last-child{border-right:0}
.stat b{display:block;font-size:clamp(26px,3vw,36px);font-weight:800;line-height:1.1;letter-spacing:-.02em}
.stat b i{font-style:normal;font-size:15px;font-weight:600;color:var(--c-signal);margin-left:3px}
.stat span{display:block;font-size:13px;color:var(--c-ink-muted);margin-top:8px;letter-spacing:.02em}

/* ---------- Pain ---------- */
.pain-grid{display:grid;grid-template-columns:320px 1fr;gap:64px}
.pain-aside h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.25;color:var(--c-ink);margin-top:14px}
.pain-aside p{color:var(--c-muted);font-size:14.5px;margin-top:16px}
.pain-item{display:flex;gap:22px;padding:26px 0;border-top:1px solid var(--c-line);transition:background .25s ease}
.pain-item:last-child{border-bottom:1px solid var(--c-line)}
.pain-item:hover{background:var(--c-surface-2)}
.pain-num{font-size:13px;font-weight:700;color:var(--c-accent);letter-spacing:.08em;padding-top:5px;flex:none;width:34px}
.pain-item h3{font-size:19px;font-weight:600;color:var(--c-ink);line-height:1.4}
.pain-item p{color:var(--c-muted);font-size:14.5px;margin-top:8px}

/* ---------- Zigzag ---------- */
.zig{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:44px 0;border-top:1px solid var(--c-line)}
.zig:first-of-type{border-top:0;padding-top:0}
.zig:nth-child(even) .zig-media{order:2}
.zig-media{position:relative;border-radius:var(--r-card);overflow:hidden;background:var(--c-surface-2);box-shadow:var(--sh-1)}
.zig-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.zig-row:hover .zig-media img{transform:scale(1.03)}
.zig-media .idx{
  position:absolute;top:14px;left:14px;background:rgba(15,42,36,.86);color:#fff;
  font-size:12px;font-weight:700;letter-spacing:.1em;padding:5px 11px;border-radius:var(--r-pill);
}
.zig-body h3{font-size:23px;font-weight:600;line-height:1.35;color:var(--c-ink)}
.zig-body p{color:var(--c-muted);margin-top:14px;font-size:15.5px}
.zig-list{margin-top:18px;display:grid;gap:9px}
.zig-list li{position:relative;padding-left:20px;font-size:15px;color:var(--c-text)}
.zig-list li::before{content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:2px;background:var(--c-accent);opacity:.85}
.zig-body .text-link{margin-top:20px}

/* ---------- Results (dark) ---------- */
.results{background:var(--c-ink);color:#fff;position:relative;overflow:hidden;padding:88px 0 92px}
.results::before{
  content:"";position:absolute;inset:0;opacity:.16;
  background-image:linear-gradient(rgba(255,255,255,.35) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.35) 1px,transparent 1px);
  background-size:64px 64px;mask-image:linear-gradient(180deg,#000,transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,#000,transparent 78%);
}
.results .container{position:relative;z-index:2}
.results h2{font-size:clamp(26px,3.4vw,40px);font-weight:700;line-height:1.2;color:#fff;margin-top:14px;max-width:720px}
.results .lead{color:var(--c-ink-muted);margin-top:16px;max-width:680px;font-size:15.5px}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:52px}
.metric{
  border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);padding:26px 22px 24px;
  background:rgba(255,255,255,.03);
}
.metric b{display:block;font-size:clamp(30px,3.6vw,44px);font-weight:800;letter-spacing:-.02em;line-height:1.05}
.metric b i{font-style:normal;font-size:16px;font-weight:600;color:var(--c-signal);margin-left:2px}
.metric span{display:block;font-size:13px;color:var(--c-ink-muted);margin-top:10px}
.bar{height:4px;border-radius:2px;background:rgba(255,255,255,.14);margin-top:16px;overflow:hidden}
.bar i{display:block;height:100%;width:0;background:var(--c-signal);transition:width 1.1s cubic-bezier(.2,.7,.2,1)}

/* ---------- Testimonials ---------- */
.tst-wrap{position:relative}
.quote-mark{
  font-size:120px;line-height:.7;color:var(--c-accent);opacity:.22;font-weight:800;
  user-select:none;margin-bottom:6px;
}
.tst-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.tst-col--down{margin-top:40px}
.tst-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--sh-1);transition:transform .3s cubic-bezier(.2,.7,.2,1),box-shadow .3s ease,border-color .3s ease;
}
.tst-card + .tst-card{margin-top:28px}
.tst-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.3)}
.tst-head{display:flex;align-items:center;gap:14px}
.avatar{
  width:56px;height:56px;border-radius:50%;flex:none;object-fit:cover;background:var(--c-surface-2);
}
.tst-name{font-weight:700;color:var(--c-ink);font-size:15.5px}
.tst-role{font-size:13px;color:var(--c-muted);letter-spacing:.02em}
.tst-card blockquote{margin:18px 0 0;font-size:15.5px;color:var(--c-text);line-height:1.8}

/* ---------- News ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .3s cubic-bezier(.2,.7,.2,1),box-shadow .3s ease,border-color .3s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.3)}
.card-media{position:relative;background:var(--c-surface-2);overflow:hidden;aspect-ratio:16/10}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.news-card:hover .card-media img{transform:scale(1.03)}
.card-media .badge{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.92)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:17.5px;font-weight:600;line-height:1.5;color:var(--c-ink);transition:color .2s ease}
.news-card:hover .card-body h3{color:var(--c-accent)}
.card-body p{color:var(--c-muted);font-size:14px;margin-top:10px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-muted);margin-top:auto;padding-top:18px;letter-spacing:.02em}
.card-meta .sep{width:3px;height:3px;border-radius:50%;background:var(--c-line)}
.empty{
  grid-column:1/-1;text-align:center;padding:58px 24px;border:1px dashed var(--c-line);
  border-radius:var(--r-card);background:var(--c-surface);
}
.empty svg{width:38px;height:38px;stroke:var(--c-muted);fill:none;stroke-width:1.5;margin:0 auto 14px}
.empty p{color:var(--c-muted);margin-bottom:18px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--c-line);max-width:920px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  width:100%;background:transparent;border:0;cursor:pointer;text-align:left;
  display:flex;align-items:center;gap:18px;padding:24px 4px;
  font-size:18px;font-weight:600;color:var(--c-ink);line-height:1.5;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--c-accent)}
.faq-q .ic{
  margin-left:auto;flex:none;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--c-line);position:relative;transition:border-color .25s ease,background .25s ease;
}
.faq-q .ic::before,.faq-q .ic::after{
  content:"";position:absolute;background:var(--c-ink);transition:transform .25s ease,background .25s ease;
}
.faq-q .ic::before{left:7px;right:7px;top:12px;height:2px}
.faq-q .ic::after{top:7px;bottom:7px;left:12px;width:2px}
.faq-item.is-open .faq-q{color:var(--c-accent)}
.faq-item.is-open .faq-q .ic{background:var(--c-accent);border-color:var(--c-accent)}
.faq-item.is-open .faq-q .ic::before{background:#fff}
.faq-item.is-open .faq-q .ic::after{transform:scaleY(0);background:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s cubic-bezier(.2,.7,.2,1)}
.faq-a p{padding:0 4px 26px;color:var(--c-muted);font-size:15.5px;max-width:820px}

/* ---------- CTA ---------- */
.cta{background:var(--c-accent);color:#fff;padding:76px 0}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.cta h2{font-size:clamp(26px,3.2vw,38px);font-weight:700;line-height:1.22;color:#fff}
.cta .lead{margin-top:16px;color:rgba(255,255,255,.9);font-size:15.5px;max-width:460px}
.cta .points{margin-top:26px;display:grid;gap:10px}
.cta .points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.95)}
.cta .points li::before{
  content:"";width:7px;height:7px;border-radius:2px;background:#fff;margin-top:.62em;flex:none;
}
.form{background:var(--c-surface);border-radius:var(--r-card);padding:30px 28px;box-shadow:var(--sh-2)}
.form h3{font-size:19px;font-weight:700;color:var(--c-ink)}
.form .hint{font-size:13px;color:var(--c-muted);margin-top:8px}
.field{margin-top:18px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--c-ink);margin-bottom:8px;letter-spacing:.02em}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--c-line);background:var(--c-bg);border-radius:var(--r-btn);
  padding:12px 14px;font-size:15px;outline:0;transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.field textarea{resize:vertical;min-height:96px;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--c-accent);background:#fff;box-shadow:0 0 0 3px rgba(255,90,31,.14);
}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form .btn{margin-top:24px}
.form .foot{font-size:12.5px;color:var(--c-muted);margin-top:14px}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-ink);color:#fff;padding:72px 0 0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:52px}
.foot-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.site-footer p{color:var(--c-ink-muted);font-size:14px;line-height:1.85}
.foot-col h4{font-size:14px;font-weight:700;color:#fff;letter-spacing:.06em;margin-bottom:16px}
.foot-col li{margin-bottom:11px}
.foot-col a{color:var(--c-ink-muted);font-size:14px;transition:color .2s ease}
.foot-col a:hover{color:var(--c-signal)}
.foot-col .kv{color:var(--c-ink-muted);font-size:14px;margin-bottom:10px}
.foot-col .kv b{color:#fff;font-weight:600;margin-right:6px}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 30px;
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  color:var(--c-ink-muted);font-size:13px;
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s cubic-bezier(.2,.7,.2,1),transform .48s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  :root{--sec:72px}
  .pain-grid{grid-template-columns:1fr;gap:32px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
  .search input{width:120px}
}
@media (max-width:860px){
  .utility .search{display:none}
  .status{display:none}
  .burger{display:flex}
  .channel-inner{height:auto;padding:10px 0;gap:14px}
  .channel-nav{overflow-x:auto;scrollbar-width:none}
  .channel-nav::-webkit-scrollbar{display:none}
  .channel-sep{display:none}
  .zig{grid-template-columns:1fr;gap:26px;padding:34px 0}
  .zig:nth-child(even) .zig-media{order:0}
  .tst-grid{grid-template-columns:1fr}
  .tst-col--down{margin-top:0}
  .quote-mark{font-size:88px}
  .stats{grid-template-columns:repeat(2,1fr)}
  .stat{border-right:0;border-bottom:1px solid rgba(255,255,255,.12)}
  .stat:nth-child(odd){border-right:1px solid rgba(255,255,255,.12)}
  .stat:nth-last-child(-n+2){border-bottom:0}
}
@media (max-width:640px){
  :root{--sec:48px}
  body{font-size:16px}
  .container{padding:0 20px}
  .brand-name{font-size:15px}
  .hero-inner{padding-top:60px;min-height:auto}
  .hero-copy{padding-bottom:36px}
  .hero-actions{gap:12px}
  .hero-actions .btn{flex:1 1 100%}
  .stats{margin-top:8px}
  .stat{padding:20px 16px}
  .news-grid{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr;gap:16px}
  .results{padding:56px 0 60px}
  .cta{padding:56px 0}
  .form{padding:24px 20px}
  .field-row{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .faq-q{font-size:16.5px;padding:20px 2px}
  .sec-head{margin-bottom:30px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --c-ink:#0F2A24;
  --c-ink-soft:#16382F;
  --c-accent:#FF5A1F;
  --c-accent-dark:#E44A12;
  --c-signal:#C8F02A;
  --c-bg:#F6F4EF;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFECE5;
  --c-text:#232A28;
  --c-muted:#6E7A75;
  --c-line:#E4E1DA;
  --c-on-ink-muted:#A9B7B1;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(12,26,23,.06), 0 12px 32px -18px rgba(12,26,23,.18);
  --shadow-2:0 2px 6px rgba(12,26,23,.08), 0 22px 44px -20px rgba(12,26,23,.26);
  --container:1240px;
  --gap:24px;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);letter-spacing:-.01em;}
p{margin:0 0 1.1em;}
a{color:var(--c-ink);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--c-accent);}
img{max-width:100%;display:block;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.eyebrow{font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--c-muted);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.sec-head h2{font-size:clamp(26px,3.4vw,40px);font-weight:700;line-height:1.2;}
.sec-head p{margin:10px 0 0;color:var(--c-muted);max-width:640px;}
.text-link{display:inline-flex;align-items:center;gap:8px;font-weight:600;color:var(--c-ink);position:relative;}
.text-link i{transition:transform .24s var(--ease);}
.text-link:hover i{transform:translateX(3px);}
.text-link::after{content:"";position:absolute;left:0;bottom:-3px;height:1.5px;width:0;background:var(--c-accent);transition:width .28s var(--ease);}
.text-link:hover::after{width:100%;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);border:1.5px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;position:relative;overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .24s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
  text-align:center;
}
.btn>span{position:relative;z-index:2;}
.btn::before{content:"";position:absolute;inset:0;width:0;background:var(--c-ink);transition:width .28s var(--ease);z-index:1;}
.btn:hover::before{width:100%;}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{color:#fff;box-shadow:var(--shadow-2);transform:translateY(-2px);}
.btn-primary::before{background:var(--c-ink);}
.btn-ghost{background:transparent;color:var(--c-ink);border-color:var(--c-ink);}
.btn-ghost:hover{color:#fff;}
.btn-ghost::before{background:var(--c-ink);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-outline-light::before{background:#fff;}
.btn-outline-light:hover{color:var(--c-ink);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn:active{transform:translateY(1px);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;cursor:not-allowed;transform:none;}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:12px;line-height:1;padding:7px 12px;border-radius:var(--r-pill);background:var(--c-surface-2);color:var(--c-ink);font-weight:600;}
.badge-accent{background:rgba(255,90,31,.12);color:var(--c-accent-dark);}
.dot{width:8px;height:8px;border-radius:50%;background:var(--c-signal);display:inline-block;box-shadow:0 0 0 3px rgba(200,240,42,.25);}
.status{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--c-on-ink-muted);white-space:nowrap;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:80;background:var(--c-ink);color:#fff;transition:box-shadow .24s var(--ease);}
.site-header.is-stuck{box-shadow:0 10px 30px -18px rgba(0,0,0,.6);border-bottom:1px solid rgba(255,255,255,.08);}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px;transition:height .24s var(--ease);}
.site-header.is-stuck .brand-row{height:52px;}
.brand{display:flex;align-items:center;gap:12px;color:#fff;}
.brand:hover{color:#fff;}
.logo-mark{width:38px;height:38px;flex:0 0 38px;border-radius:11px;background:var(--c-accent);color:#fff;display:grid;place-items:center;font-weight:800;font-size:15px;letter-spacing:.02em;}
.brand-name{font-weight:800;font-size:18px;letter-spacing:-.01em;white-space:nowrap;}
.brand-tools{display:flex;align-items:center;gap:16px;}
.search{display:flex;align-items:center;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-pill);padding:0 6px 0 16px;height:40px;transition:border-color .2s var(--ease),background .2s var(--ease);}
.search:focus-within{border-color:var(--c-accent);background:rgba(255,255,255,.12);}
.search input{background:transparent;border:0;outline:none;color:#fff;width:190px;font-size:14px;}
.search input::placeholder{color:rgba(255,255,255,.5);}
.search button{background:transparent;border:0;color:var(--c-signal);cursor:pointer;padding:0 8px;height:100%;}
.channel-nav{display:flex;align-items:center;gap:4px;height:46px;border-top:1px solid rgba(255,255,255,.08);overflow-x:auto;scrollbar-width:none;}
.channel-nav::-webkit-scrollbar{display:none;}
.channel-link{position:relative;padding:0 16px;height:46px;display:inline-flex;align-items:center;font-size:14.5px;color:rgba(255,255,255,.78);white-space:nowrap;font-weight:500;}
.channel-link:hover{color:#fff;}
.channel-link.is-active{color:#fff;font-weight:700;}
.channel-link.is-active::after{content:"";position:absolute;left:16px;right:16px;bottom:0;height:2px;background:var(--c-accent);border-radius:2px;}
.channel-sep{width:1px;height:18px;background:rgba(255,255,255,.16);margin:0 10px;flex:0 0 1px;}
.trend{display:flex;align-items:center;gap:8px;}
.trend a{font-size:12px;padding:5px 11px;border-radius:var(--r-pill);background:rgba(255,255,255,.08);color:rgba(255,255,255,.82);white-space:nowrap;}
.trend a:hover{background:var(--c-accent);color:#fff;}
.menu-toggle{display:none;width:42px;height:42px;border-radius:10px;border:1px solid rgba(255,255,255,.2);background:transparent;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px;}
.menu-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;}
.drawer{display:none;padding:16px 24px 26px;background:var(--c-ink);border-top:1px solid rgba(255,255,255,.1);}
.drawer.is-open{display:block;}
.drawer .d-link{display:block;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.1);color:rgba(255,255,255,.86);font-size:15px;}
.drawer .d-link.is-active{color:var(--c-signal);font-weight:700;}
.drawer .d-search{display:flex;gap:8px;margin:16px 0;}
.drawer .d-search input{flex:1;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);color:#fff;padding:0 14px;outline:none;}
.drawer .d-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:16px;}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:var(--c-surface-2);border-bottom:1px solid var(--c-line);}
.breadcrumb{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--c-muted);padding:14px 0;letter-spacing:.02em;}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-accent);}
.breadcrumb .sep{color:#BFC4BE;}
.breadcrumb .current{color:var(--c-ink);font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:min(640px,60vw);}

/* ---------- article layout ---------- */
.article-wrap{padding:48px 0 96px;}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:48px;align-items:start;}
.article-head{border-bottom:1px solid var(--c-line);padding-bottom:28px;margin-bottom:32px;}
.article-head h1{font-size:clamp(28px,3.6vw,44px);font-weight:800;line-height:1.22;letter-spacing:-.02em;}
.article-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-top:18px;font-size:13px;color:var(--c-muted);letter-spacing:.02em;}
.article-meta .mid{width:4px;height:4px;border-radius:50%;background:#C6CBC5;}
.article-hero{margin:0 0 32px;border-radius:var(--r-card);overflow:hidden;position:relative;aspect-ratio:16/9;background:var(--c-surface-2);}
.article-hero img{width:100%;height:100%;object-fit:cover;}
.article-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,42,36,0) 45%,rgba(15,42,36,.42));}
.article-hero figcaption{position:absolute;left:0;right:0;bottom:12px;text-align:center;font-size:13px;color:rgba(255,255,255,.86);z-index:2;}

.article-body{max-width:720px;font-size:17px;line-height:1.85;color:var(--c-text);}
.article-body>*:first-child{margin-top:0;}
.article-body h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;margin:2.2em 0 .8em;line-height:1.3;padding-left:16px;position:relative;}
.article-body h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:4px;background:var(--c-accent);}
.article-body h3{font-size:20px;font-weight:600;margin:1.8em 0 .6em;line-height:1.35;}
.article-body p{margin:0 0 1.1em;}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:0;}
.article-body ul li,.article-body ol li{position:relative;padding-left:26px;margin-bottom:.55em;}
.article-body ul li::before{content:"";position:absolute;left:6px;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--c-accent);}
.article-body ol{counter-reset:li;}
.article-body ol li{counter-increment:li;}
.article-body ol li::before{content:counter(li,decimal-leading-zero);position:absolute;left:0;top:0;font-size:13px;font-weight:700;color:var(--c-accent-dark);}
.article-body blockquote{margin:1.6em 0;padding:18px 22px;background:var(--c-surface-2);border-left:3px solid var(--c-accent);border-radius:0 12px 12px 0;color:#3B453F;}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-card);margin:1.6em 0;}
.article-body figure{margin:1.8em 0;}
.article-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:10px;}
.article-body a{color:var(--c-accent-dark);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
.article-body a:hover{color:var(--c-accent);}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15.5px;}
.article-body th,.article-body td{border-bottom:1px solid var(--c-line);padding:12px 10px;text-align:left;}
.article-body th{font-weight:700;color:var(--c-ink);}
.article-body code{background:var(--c-surface-2);padding:2px 6px;border-radius:6px;font-size:.92em;}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2.4em 0;}

.notice-empty{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:40px 28px;text-align:center;max-width:720px;}
.notice-empty i{font-size:28px;color:var(--c-muted);}
.notice-empty h2{font-size:22px;margin:14px 0 8px;padding:0;}
.notice-empty h2::before{display:none;}
.notice-empty p{color:var(--c-muted);margin-bottom:20px;}

/* ---------- sidebar ---------- */
.side{position:sticky;top:130px;display:grid;gap:22px;}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;box-shadow:var(--shadow-1);}
.side-card h3{font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--c-accent);font-size:13px;}
.toc ol{counter-reset:toc;}
.toc li{counter-increment:toc;}
.toc a{display:flex;gap:10px;align-items:baseline;padding:9px 0;border-bottom:1px dashed var(--c-line);font-size:14px;color:#39433E;}
.toc li:last-child a{border-bottom:0;}
.toc a::before{content:counter(toc,decimal-leading-zero);font-size:12px;color:var(--c-accent-dark);font-weight:700;flex:0 0 22px;}
.hot-list li{border-bottom:1px solid var(--c-line);}
.hot-list li:last-child{border-bottom:0;}
.hot-list a,.hot-list span{display:block;padding:11px 0;font-size:14.5px;color:#39433E;}
.hot-list a:hover{color:var(--c-accent);}
.hot-list .hint{font-size:12.5px;color:var(--c-muted);line-height:1.6;padding:6px 0 0;}
.login-card{background:var(--c-ink);border:1px solid rgba(255,255,255,.1);color:#fff;border-radius:var(--r-card);padding:26px 22px;}
.login-card h3{color:#fff;font-size:17px;margin-bottom:10px;}
.login-card p{color:var(--c-on-ink-muted);font-size:14px;line-height:1.75;margin-bottom:18px;}
.login-card .btn{width:100%;}
.login-card .mini{font-size:12.5px;color:var(--c-on-ink-muted);margin-top:12px;display:flex;align-items:center;gap:8px;}

/* ---------- tags / pager ---------- */
.tag-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:44px 0 0;padding-top:26px;border-top:1px solid var(--c-line);}
.tag-row .label{font-size:13px;color:var(--c-muted);margin-right:4px;}
.tag{display:inline-flex;align-items:center;font-size:12.5px;padding:7px 13px;border-radius:var(--r-pill);background:var(--c-surface-2);color:var(--c-ink);border:1px solid transparent;transition:border-color .2s var(--ease),color .2s var(--ease);}
.tag:hover{border-color:rgba(255,90,31,.4);color:var(--c-accent-dark);}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:34px;}
.pager a{display:block;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px;transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);}
.pager a:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(255,90,31,.35);}
.pager .k{font-size:12px;color:var(--c-muted);letter-spacing:.06em;display:flex;align-items:center;gap:6px;}
.pager .t{font-size:15.5px;font-weight:600;color:var(--c-ink);margin-top:8px;line-height:1.5;}
.pager .next{text-align:right;}
.pager .next .k{justify-content:flex-end;}
.back-row{margin-top:26px;}
.pager-empty{background:var(--c-surface-2);border:1px dashed var(--c-line);border-radius:var(--r-card);padding:20px;font-size:14px;color:var(--c-muted);}
.pager-empty .k{font-size:12px;color:var(--c-muted);}
.pager-empty .t{font-size:14.5px;color:#8A938E;margin-top:8px;}

/* ---------- related ---------- */
.related{padding:0 0 96px;}
.related-scroll{display:flex;gap:22px;overflow-x:auto;padding:4px 4px 18px;scroll-snap-type:x mandatory;}
.related-scroll::-webkit-scrollbar{height:8px;}
.related-scroll::-webkit-scrollbar-thumb{background:#D8D4CB;border-radius:8px;}
.related-card{flex:0 0 320px;scroll-snap-align:start;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(255,90,31,.3);}
.related-card .thumb{aspect-ratio:16/10;background:var(--c-surface-2);overflow:hidden;}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.related-card:hover .thumb img{transform:scale(1.03);}
.related-card .body{padding:18px;}
.related-card h3{font-size:16px;line-height:1.5;font-weight:600;}
.related-card .time{font-size:12.5px;color:var(--c-muted);margin-top:10px;}
.empty-state{border:1px dashed var(--c-line);border-radius:var(--r-card);background:var(--c-surface);padding:44px 24px;text-align:center;width:100%;}
.empty-state i{font-size:26px;color:var(--c-muted);}
.empty-state p{color:var(--c-muted);margin:12px 0 18px;}

/* ---------- CTA ---------- */
.cta-band{background:var(--c-accent);color:#fff;}
.cta-band .inner{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:72px 0;}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,36px);line-height:1.25;}
.cta-band p{color:rgba(255,255,255,.92);margin:14px 0 0;max-width:520px;}
.cta-form{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.32);border-radius:var(--r-card);padding:26px;backdrop-filter:none;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;margin-bottom:7px;color:rgba(255,255,255,.9);}
.field input,.field select,.field textarea{width:100%;height:46px;border-radius:10px;border:1px solid rgba(255,255,255,.5);background:rgba(255,255,255,.96);padding:0 14px;outline:none;color:var(--c-text);font-size:14.5px;}
.field textarea{height:auto;padding:12px 14px;resize:vertical;min-height:92px;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--c-ink);box-shadow:0 0 0 3px rgba(15,42,36,.18);}
.cta-form .btn{width:100%;background:var(--c-ink);color:#fff;}
.cta-form .btn::before{background:#fff;}
.cta-form .btn:hover{color:var(--c-ink);}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:var(--c-on-ink-muted);padding:72px 0 26px;margin-top:0;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.foot-brand .brand-name{color:#fff;font-size:17px;}
.foot-col p{font-size:14px;line-height:1.8;margin:0;max-width:340px;}
.foot-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700;}
.foot-col ul li{margin-bottom:10px;}
.foot-col ul a{color:var(--c-on-ink-muted);font-size:14px;}
.foot-col ul a:hover{color:var(--c-signal);}
.foot-col .kv{font-size:14px;margin-bottom:10px;display:flex;gap:8px;}
.foot-col .kv b{color:#fff;font-weight:600;flex:0 0 66px;}
.foot-bottom{margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s var(--ease),transform .48s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

@media (max-width:1024px){
  .article-grid{grid-template-columns:1fr;gap:36px;}
  .side{position:static;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band .inner{grid-template-columns:1fr;gap:32px;}
  .search input{width:130px;}
}
@media (max-width:820px){
  .search{display:none;}
  .status{display:none;}
  .menu-toggle{display:flex;}
  .brand-name{font-size:16px;}
}
@media (max-width:640px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .section{padding:48px 0;}
  .section-tight{padding:40px 0;}
  .article-wrap{padding:28px 0 56px;}
  .article-body{font-size:16.5px;}
  .pager{grid-template-columns:1fr;}
  .pager .next{text-align:left;}
  .pager .next .k{justify-content:flex-start;}
  .related-card{flex:0 0 84%;}
  .foot-grid{grid-template-columns:1fr;}
  .cta-band .inner{padding:52px 0;}
  .brand-row{height:58px;}
  .site-header.is-stuck .brand-row{height:52px;}
  .brand-tools{gap:10px;}
  .breadcrumb .current{max-width:70vw;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --c-ink:#0F2A24;
  --c-ink-2:#A9B7B1;
  --c-accent:#FF5A1F;
  --c-accent-deep:#E1440B;
  --c-signal:#C8F02A;
  --c-bg:#F6F4EF;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFECE5;
  --c-text:#232A28;
  --c-muted:#6E7A75;
  --c-line:#E4E1DA;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,26,23,.06), 0 12px 32px -18px rgba(12,26,23,.18);
  --sh-2:0 2px 6px rgba(12,26,23,.08), 0 22px 46px -20px rgba(12,26,23,.26);
  --max:1240px;
  --sec:96px;
  --font:PingFang SC,"HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
strong{font-weight:700;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;}
.section{padding:var(--sec) 0;}
.section-tight{padding:64px 0;}
.eyebrow{font-size:12px;letter-spacing:.14em;color:var(--c-muted);text-transform:uppercase;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.sec-head h2{font-size:clamp(26px,3.4vw,40px);line-height:1.2;font-weight:700;letter-spacing:-.01em;}
.sec-head p{color:var(--c-muted);font-size:15px;margin-top:10px;max-width:60ch;}
.sec-index{font-size:13px;letter-spacing:.18em;color:var(--c-accent);font-weight:700;display:block;margin-bottom:12px;}
.skip{position:absolute;left:-9999px;top:0;background:var(--c-ink);color:#fff;padding:10px 16px;border-radius:var(--r-btn);z-index:200;}
.skip:focus{left:12px;top:12px;}

/* ---------- 按钮 ---------- */
.btn{
  position:relative;isolation:isolate;overflow:hidden;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  transition:transform .2s ease,box-shadow .24s ease,color .24s ease,border-color .24s ease,background-color .24s ease;
}
.btn::before{
  content:"";position:absolute;inset:0;width:0;z-index:-1;
  background:var(--c-accent-deep);
  transition:width .28s cubic-bezier(.2,.7,.2,1);
}
.btn:hover::before{width:100%;}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 10px 24px -14px rgba(255,90,31,.9);}
.btn-primary:hover{color:#fff;}
.btn-outline{border:1.5px solid var(--c-ink);color:var(--c-ink);background:transparent;}
.btn-outline::before{background:var(--c-ink);}
.btn-outline:hover{color:#fff;}
.btn-ghost{border:1.5px solid rgba(255,255,255,.55);color:#fff;}
.btn-ghost::before{background:#fff;}
.btn-ghost:hover{color:var(--c-ink);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:9px;}
.btn[disabled],.btn:disabled{opacity:.4;cursor:not-allowed;box-shadow:none;}
.btn[disabled]::before,.btn:disabled::before{width:0;}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--c-ink);
  background-image:linear-gradient(var(--c-accent),var(--c-accent));
  background-repeat:no-repeat;background-size:0% 2px;background-position:left 100%;
  transition:background-size .28s cubic-bezier(.2,.7,.2,1),color .24s ease;
  padding-bottom:3px;
}
.text-link:hover{background-size:100% 2px;color:var(--c-accent);}
.text-link .arrow{transition:transform .24s ease;}
.text-link:hover .arrow{transform:translateX(3px);}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(246,244,239,.96);
  backdrop-filter:saturate(150%) blur(6px);
  border-bottom:1px solid transparent;
  transition:box-shadow .24s ease,border-color .24s ease,background-color .24s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--c-line);box-shadow:0 8px 24px -20px rgba(12,26,23,.5);}
.topbar-inner{display:flex;align-items:center;gap:24px;height:64px;transition:height .24s ease;}
.site-header.is-scrolled .topbar-inner{height:52px;}
.brand{display:flex;align-items:center;gap:10px;min-width:0;}
.logo-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:9px;
  background:var(--c-ink);color:var(--c-signal);
  display:grid;place-items:center;
  font-size:13px;font-weight:800;letter-spacing:.04em;
}
.brand-name{font-size:16px;font-weight:700;letter-spacing:-.01em;color:var(--c-ink);white-space:nowrap;}
.topbar-tools{margin-left:auto;display:flex;align-items:center;gap:16px;}
.search{display:flex;align-items:center;height:40px;border:1px solid var(--c-line);background:var(--c-surface);border-radius:var(--r-btn);overflow:hidden;transition:border-color .2s ease;}
.search:focus-within{border-color:var(--c-accent);}
.search input{
  width:200px;height:100%;border:0;background:transparent;padding:0 12px;font-size:14px;outline:none;
}
.search input::placeholder{color:var(--c-muted);}
.search button{width:44px;height:100%;display:grid;place-items:center;color:var(--c-muted);transition:color .2s ease;}
.search button:hover{color:var(--c-accent);}
.search svg{width:17px;height:17px;}
.status{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--c-muted);white-space:nowrap;}
.dot{width:8px;height:8px;border-radius:50%;background:var(--c-signal);display:inline-block;box-shadow:0 0 0 4px rgba(200,240,42,.22);}
.menu-btn{display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--c-line);background:var(--c-surface);flex-direction:column;align-items:center;justify-content:center;gap:5px;}
.menu-btn span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.chanbar{border-top:1px solid var(--c-line);}
.chanbar-inner{display:flex;align-items:center;gap:24px;height:52px;}
.channel-nav{display:flex;align-items:center;gap:4px;flex-wrap:nowrap;}
.channel-link{
  position:relative;padding:6px 14px;font-size:15px;font-weight:600;color:var(--c-muted);
  border-radius:8px;transition:color .2s ease,background-color .2s ease;white-space:nowrap;
}
.channel-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .24s cubic-bezier(.2,.7,.2,1);
}
.channel-link:hover{color:var(--c-ink);background:var(--c-surface-2);}
.channel-link.is-active{color:var(--c-ink);}
.channel-link.is-active::after{transform:scaleX(1);}
.hotwords{margin-left:auto;display:flex;align-items:center;gap:8px;overflow:hidden;}
.hotwords .hot-label{font-size:13px;color:var(--c-muted);white-space:nowrap;}
.hot{font-size:12px;padding:4px 11px;border-radius:var(--r-pill);background:var(--c-surface-2);color:var(--c-ink);white-space:nowrap;transition:background-color .2s ease,color .2s ease;}
.hot:hover{background:var(--c-ink);color:#fff;}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:112px 0 0 0;z-index:90;background:var(--c-bg);
  padding:20px 0 40px;overflow-y:auto;
  transform:translateY(-12px);opacity:0;visibility:hidden;
  transition:opacity .24s ease,transform .24s ease,visibility .24s;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer .drawer-group{margin-bottom:24px;}
.drawer .drawer-title{font-size:12px;letter-spacing:.14em;color:var(--c-muted);margin-bottom:12px;}
.drawer .drawer-links{display:grid;gap:2px;}
.drawer .drawer-links a{display:block;padding:13px 14px;border-radius:10px;background:var(--c-surface);border:1px solid var(--c-line);font-weight:600;}
.drawer .drawer-links a.is-active{border-color:var(--c-accent);color:var(--c-accent);}
.drawer .hot-row{display:flex;flex-wrap:wrap;gap:8px;}
.drawer .btn{width:100%;margin-top:8px;}

/* ---------- 分类英雄区 ---------- */
.page-hero{padding:56px 0 40px;border-bottom:1px solid var(--c-line);}
.hero-grid{display:grid;grid-template-columns:8fr 4fr;gap:40px;align-items:center;}
.pill{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.06em;
  padding:5px 13px;border-radius:var(--r-pill);background:var(--c-surface-2);color:var(--c-ink);
}
.pill i{width:6px;height:6px;border-radius:50%;background:var(--c-signal);display:block;}
.page-hero h1{
  font-size:clamp(30px,4.4vw,48px);line-height:1.14;font-weight:800;letter-spacing:-.02em;
  color:var(--c-ink);margin:18px 0 16px;
}
.hl{
  color:var(--c-accent);
  background-image:linear-gradient(var(--c-accent),var(--c-accent));
  background-repeat:no-repeat;background-size:100% 3px;background-position:left 100%;
  padding-bottom:4px;
}
.page-hero .lead{font-size:17px;color:var(--c-muted);max-width:56ch;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-figure{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);background:var(--c-surface);
  box-shadow:var(--sh-1);
}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-figure figcaption{font-size:13px;color:var(--c-muted);padding:12px 16px;border-top:1px solid var(--c-line);}

/* ---------- 筛选条 ---------- */
.filter-bar{position:sticky;top:116px;z-index:60;background:var(--c-bg);border-bottom:1px solid var(--c-line);}
.filter-inner{display:flex;align-items:center;gap:8px;height:56px;overflow-x:auto;scrollbar-width:none;}
.filter-inner::-webkit-scrollbar{display:none;}
.filter-label{font-size:13px;color:var(--c-muted);white-space:nowrap;margin-right:6px;}
.chip{
  flex:0 0 auto;font-size:14px;font-weight:600;color:var(--c-muted);padding:7px 14px;border-radius:var(--r-pill);
  border:1px solid transparent;white-space:nowrap;transition:color .2s ease,background-color .2s ease,border-color .2s ease;
}
.chip:hover{color:var(--c-ink);background:var(--c-surface-2);}
.chip.is-current{color:var(--c-accent);border-color:rgba(255,90,31,.4);background:rgba(255,90,31,.08);}

/* ---------- 列表 ---------- */
.feed{border-top:1px solid var(--c-line);}
.feed-item{
  display:grid;grid-template-columns:56px minmax(220px,320px) 1fr auto;gap:26px;align-items:center;
  padding:30px 0;border-bottom:1px solid var(--c-line);
  transition:background-color .24s ease;
}
.feed-item:hover{background:var(--c-surface-2);}
.feed-index{font-size:26px;font-weight:800;color:var(--c-line);letter-spacing:-.02em;line-height:1;}
.feed-item:hover .feed-index{color:var(--c-accent);}
.feed-thumb{
  border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);background:var(--c-surface-2);
  background-image:repeating-linear-gradient(45deg,rgba(12,26,23,.05) 0 8px,transparent 8px 16px);
}
.feed-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s cubic-bezier(.2,.7,.2,1);}
.feed-item:hover .feed-thumb img{transform:scale(1.03);}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;}
.badge{
  font-size:12px;padding:4px 11px;border-radius:var(--r-pill);background:var(--c-surface-2);color:var(--c-ink);font-weight:600;
}
.badge-accent{background:rgba(255,90,31,.12);color:var(--c-accent);}
.feed-body h3{font-size:21px;line-height:1.4;font-weight:600;color:var(--c-ink);}
.feed-body h3 a{background-image:linear-gradient(var(--c-accent),var(--c-accent));background-repeat:no-repeat;background-size:0% 2px;background-position:left 100%;transition:background-size .28s cubic-bezier(.2,.7,.2,1),color .2s ease;}
.feed-item:hover .feed-body h3 a{background-size:100% 2px;color:var(--c-accent);}
.feed-body p{margin-top:10px;color:var(--c-muted);font-size:15.5px;max-width:62ch;}
.feed-meta{display:flex;align-items:center;gap:8px;margin-top:14px;font-size:13px;color:var(--c-muted);letter-spacing:.02em;}
.feed-meta .sep{color:var(--c-line);}

/* ---------- 深色数据区 ---------- */
.dark-band{background:var(--c-ink);color:#fff;padding:88px 0;position:relative;overflow:hidden;}
.dark-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:44px 44px;
}
.dark-band > .container{position:relative;}
.dark-band h2{font-size:clamp(26px,3.4vw,40px);line-height:1.2;font-weight:700;color:#fff;}
.dark-band .sub{color:var(--c-ink-2);margin-top:12px;max-width:58ch;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;margin-top:52px;}
.stat{border-top:2px solid rgba(255,255,255,.16);padding-top:20px;}
.stat .num{font-size:clamp(32px,4vw,46px);font-weight:800;letter-spacing:-.02em;color:#fff;line-height:1.05;}
.stat .num em{font-style:normal;font-size:20px;color:var(--c-signal);margin-left:4px;}
.stat .cap{font-size:13px;color:var(--c-ink-2);margin-top:12px;line-height:1.7;}
.scale{display:flex;gap:6px;margin-top:14px;}
.scale span{height:4px;flex:1;border-radius:2px;background:rgba(255,255,255,.16);}
.scale span.on{background:var(--c-signal);}

/* ---------- 更新节奏（错位栅格） ---------- */
.rhythm-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.rhythm-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);transition:transform .3s cubic-bezier(.2,.7,.2,1),box-shadow .3s ease,border-color .3s ease;
}
.rhythm-card:nth-child(2){transform:translateY(40px);}
.rhythm-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.3);}
.rhythm-card:nth-child(2):hover{transform:translateY(36px);}
.rhythm-time{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--c-accent);letter-spacing:.06em;}
.rhythm-card h3{font-size:22px;font-weight:600;color:var(--c-ink);margin:14px 0 10px;}
.rhythm-card p{color:var(--c-muted);font-size:15.5px;}
.rhythm-card ul{margin-top:16px;display:grid;gap:8px;}
.rhythm-card li{font-size:14.5px;color:var(--c-text);padding-left:18px;position:relative;}
.rhythm-card li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;background:var(--c-signal);}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{margin:0;font-size:0;}
.faq-q button{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;text-align:left;
  padding:24px 0;font-size:19px;font-weight:600;color:var(--c-ink);line-height:1.45;
  transition:color .2s ease;
}
.faq-q button:hover{color:var(--c-accent);}
.faq-q .sign{
  flex:0 0 30px;width:30px;height:30px;border-radius:50%;border:1px solid var(--c-line);
  display:grid;place-items:center;position:relative;transition:border-color .24s ease,background-color .24s ease,transform .24s ease;
}
.faq-q .sign::before,.faq-q .sign::after{content:"";position:absolute;background:var(--c-ink);border-radius:2px;transition:background-color .24s ease,transform .24s ease;}
.faq-q .sign::before{width:12px;height:2px;}
.faq-q .sign::after{width:2px;height:12px;}
.faq-q button[aria-expanded="true"] .sign{border-color:var(--c-accent);background:rgba(255,90,31,.1);transform:rotate(90deg);}
.faq-q button[aria-expanded="true"] .sign::before,.faq-q button[aria-expanded="true"] .sign::after{background:var(--c-accent);}
.faq-q button[aria-expanded="true"] .sign::after{transform:scaleY(0);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s cubic-bezier(.2,.7,.2,1);}
.faq-a p{padding:0 46px 26px 0;color:var(--c-muted);font-size:16px;}

/* ---------- CTA ---------- */
.cta-band{background:var(--c-accent);color:#fff;border-radius:var(--r-card);padding:44px;display:flex;align-items:center;gap:32px;flex-wrap:wrap;justify-content:space-between;}
.cta-band h2{font-size:clamp(24px,2.8vw,32px);font-weight:700;line-height:1.25;color:#fff;}
.cta-band p{margin-top:10px;color:rgba(255,255,255,.9);max-width:52ch;font-size:16px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-band .btn-light{background:#fff;color:var(--c-ink);}
.cta-band .btn-light::before{background:var(--c-ink);}
.cta-band .btn-light:hover{color:#fff;}
.back-home{display:flex;justify-content:center;margin-top:32px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#fff;padding:72px 0 28px;margin-top:var(--sec);}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.foot-brand .logo-mark{background:rgba(255,255,255,.08);color:var(--c-signal);}
.foot-brand .brand-name{color:#fff;font-size:16px;font-weight:700;}
.site-footer p{color:var(--c-ink-2);font-size:14.5px;max-width:34ch;}
.foot-col h4{font-size:14px;font-weight:700;letter-spacing:.08em;margin-bottom:16px;color:#fff;}
.foot-col ul{display:grid;gap:10px;}
.foot-col a{color:var(--c-ink-2);font-size:14.5px;transition:color .2s ease;}
.foot-col a:hover{color:var(--c-signal);}
.kv{font-size:14.5px;color:var(--c-ink-2);margin-bottom:10px;}
.kv b{color:#fff;font-weight:600;margin-right:8px;}
.foot-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-ink-2);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s cubic-bezier(.2,.7,.2,1),transform .48s cubic-bezier(.2,.7,.2,1);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- 断点 ---------- */
@media (max-width:1024px){
  :root{--sec:72px;}
  .hero-grid{grid-template-columns:1fr;gap:28px;}
  .search input{width:150px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:24px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .feed-item{grid-template-columns:40px 240px 1fr;gap:20px;}
  .feed-item .text-link{grid-column:2 / -1;}
  .filter-bar{top:108px;}
}
@media (max-width:768px){
  .chanbar,.search,.status{display:none;}
  .menu-btn{display:flex;}
  .site-header.is-scrolled .topbar-inner{height:56px;}
  .drawer{inset:56px 0 0 0;}
  .rhythm-card:nth-child(2){transform:none;}
  .rhythm-card:nth-child(2):hover{transform:translateY(-4px);}
}
@media (max-width:640px){
  :root{--sec:48px;}
  body{font-size:16px;}
  .container{padding:0 20px;}
  .topbar-inner{height:56px;gap:12px;}
  .brand-name{font-size:14.5px;white-space:normal;}
  .page-hero{padding:36px 0 28px;}
  .page-hero h1{font-size:clamp(26px,7vw,34px);}
  .feed-item{grid-template-columns:1fr;gap:16px;padding:24px 0;}
  .feed-index{font-size:20px;}
  .feed-item .text-link{grid-column:auto;}
  .stat-grid{grid-template-columns:1fr;gap:20px;}
  .cta-band{padding:28px;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;}
  .faq-a p{padding-right:0;}
  .hotwords{display:none;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  .rhythm-card:nth-child(2){transform:none;}
  .rhythm-card:hover,.rhythm-card:nth-child(2):hover{transform:none;}
}

/* roulang page: category2 */
*,*::before,*::after{box-sizing:border-box}
:root{
  --c-ink:#0F2A24;
  --c-accent:#FF5A1F;
  --c-signal:#C8F02A;
  --c-bg:#F6F4EF;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFECE5;
  --c-text:#232A28;
  --c-muted:#6E7A75;
  --c-line:#E4E1DA;
  --c-ink-muted:#A9B7B1;
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,26,23,.06),0 12px 32px -18px rgba(12,26,23,.18);
  --sh-2:0 2px 6px rgba(12,26,23,.08),0 22px 44px -22px rgba(12,26,23,.26);
  --w:1240px;
  --sec-y:96px;
}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;line-height:1.25}
p{margin:0}
a{color:inherit}
img{max-width:100%;display:block;border:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:120;background:var(--c-surface);border-bottom:1px solid transparent;transition:box-shadow .24s ease,border-color .24s ease}
.site-header.is-stuck{border-bottom-color:var(--c-line);box-shadow:0 8px 24px -18px rgba(12,26,23,.55)}
.topbar-inner{display:flex;align-items:center;gap:24px;height:64px;transition:height .24s ease}
.site-header.is-stuck .topbar-inner{height:52px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--c-ink);color:#fff;display:grid;place-items:center;font-size:13px;font-weight:800;letter-spacing:.04em;transition:width .24s ease,height .24s ease,font-size .24s ease}
.site-header.is-stuck .logo-mark{width:28px;height:28px;font-size:11px;border-radius:8px}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--c-ink);white-space:nowrap}

.search-box{display:flex;align-items:center;gap:9px;flex:1 1 auto;max-width:330px;height:40px;padding:0 16px;background:var(--c-surface-2);border:1px solid transparent;border-radius:var(--r-pill);transition:border-color .2s,background .2s}
.search-box:focus-within{border-color:var(--c-accent);background:#fff}
.search-box i{color:var(--c-muted);font-size:13px}
.search-box input{flex:1;border:0;background:transparent;outline:none;font-size:14px}
.search-box input::placeholder{color:var(--c-muted)}

.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:16px}
.status-pill{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--c-muted);letter-spacing:.02em;white-space:nowrap}
.dot{width:8px;height:8px;border-radius:50%;background:var(--c-signal);display:inline-block;box-shadow:0 0 0 3px rgba(200,240,42,.28)}
.burger{display:none;width:42px;height:42px;border-radius:var(--r-btn);border:1.5px solid var(--c-line);background:var(--c-surface);color:var(--c-ink);cursor:pointer;align-items:center;justify-content:center}
.burger:hover{border-color:var(--c-ink)}

.channel-bar{border-top:1px solid var(--c-line);background:var(--c-surface)}
.channel-nav{display:flex;align-items:center;gap:30px;height:50px;overflow-x:auto;scrollbar-width:none}
.channel-nav::-webkit-scrollbar{display:none}
.channel-link{position:relative;padding:6px 0;font-size:15px;font-weight:600;color:var(--c-muted);text-decoration:none;white-space:nowrap;transition:color .2s}
.channel-link:hover{color:var(--c-ink)}
.channel-link.is-active{color:var(--c-ink)}
.channel-link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;border-radius:2px;background:var(--c-accent)}

/* ---------- buttons ---------- */
.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border:1.5px solid transparent;border-radius:var(--r-btn);font-size:15px;font-weight:700;text-decoration:none;cursor:pointer;overflow:hidden;isolation:isolate;transition:transform .18s ease,background .24s ease,color .24s ease,border-color .24s ease}
.btn>span{position:relative;z-index:1}
.btn i{position:relative;z-index:1;font-size:13px}
.btn:active{transform:translateY(1px)}
.btn:disabled,.btn.is-disabled{opacity:.4;cursor:not-allowed}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--c-accent);border-color:var(--c-accent);color:#fff}
.btn-primary::before{content:"";position:absolute;inset:0;z-index:0;background:var(--c-ink);clip-path:inset(0 100% 0 0);transition:clip-path .28s cubic-bezier(.2,.7,.2,1)}
.btn-primary:hover::before{clip-path:inset(0 0 0 0)}
.btn-ghost{background:transparent;border-color:var(--c-ink);color:var(--c-ink)}
.btn-ghost:hover{background:var(--c-ink);color:#fff}
.btn-light{background:transparent;border-color:rgba(255,255,255,.65);color:#fff}
.btn-light:hover{background:#fff;border-color:#fff;color:var(--c-ink)}
.btn-solidw{background:#fff;border-color:#fff;color:var(--c-ink)}
.btn-solidw:hover{background:var(--c-signal);border-color:var(--c-signal);color:var(--c-ink)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--c-accent);text-decoration:none;position:relative;padding-bottom:2px}
.link-arrow::after{content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--c-accent);transition:width .28s cubic-bezier(.2,.7,.2,1)}
.link-arrow:hover::after{width:100%}
.link-arrow i{transition:transform .22s ease}
.link-arrow:hover i{transform:translateX(3px)}

/* ---------- breadcrumb ---------- */
.crumb-bar{padding:18px 0 4px;font-size:13px;color:var(--c-muted);letter-spacing:.02em}
.crumb-bar a{color:var(--c-muted);text-decoration:none}
.crumb-bar a:hover{color:var(--c-accent)}
.crumb-bar span.sep{margin:0 8px;color:#C6C2B8}
.crumb-bar .cur{color:var(--c-ink);font-weight:600}

/* ---------- hero ---------- */
.hero{position:relative;color:#fff;background-color:var(--c-ink);background-image:linear-gradient(rgba(15,42,36,.78),rgba(15,42,36,.78)),url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;padding:74px 0 66px}
.hero-inner{max-width:820px;margin:0 auto;text-align:center}
.hero-tag{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:var(--r-pill);background:rgba(200,240,42,.14);border:1px solid rgba(200,240,42,.4);color:var(--c-signal);font-size:12px;font-weight:700;letter-spacing:.06em}
.hero h1{margin-top:20px;font-size:clamp(30px,4.4vw,48px);font-weight:800;line-height:1.16;letter-spacing:-.02em;color:#fff}
.hero h1 em{font-style:normal;color:var(--c-accent);box-shadow:inset 0 -8px 0 rgba(255,90,31,.18)}
.hero .hero-sub{margin-top:18px;font-size:16.5px;line-height:1.85;color:#D8E2DE;max-width:660px;margin-left:auto;margin-right:auto}
.hero-actions{margin-top:30px;display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.hero-meta{margin-top:34px;display:flex;flex-wrap:wrap;justify-content:center;gap:10px 28px;font-size:13px;color:var(--c-ink-muted)}
.hero-meta i{color:var(--c-signal);margin-right:6px}

/* ---------- section base ---------- */
.section{padding:var(--sec-y) 0}
.section-alt{background:var(--c-surface-2)}
.section-dark{background:var(--c-ink);color:#fff}
.sec-head{max-width:760px}
.sec-index{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.22em;color:var(--c-accent)}
.sec-head h2{margin-top:12px;font-size:clamp(26px,3.2vw,38px);font-weight:700;letter-spacing:-.015em;line-height:1.22}
.sec-head .sec-sub{margin-top:14px;font-size:16px;color:var(--c-muted);line-height:1.85}
.section-dark .sec-head h2,.section-dark h2{color:#fff}
.section-dark .sec-head .sec-sub{color:var(--c-ink-muted)}

/* ---------- timeline ---------- */
.timeline{position:relative;margin-top:52px;padding-left:76px}
.timeline::before{content:"";position:absolute;left:23px;top:14px;bottom:14px;width:2px;background:var(--c-line)}
.tl-item{position:relative;padding-bottom:44px}
.tl-item:last-child{padding-bottom:0}
.tl-node{position:absolute;left:-76px;top:0;width:48px;height:48px;border-radius:50%;background:var(--c-surface);border:2px solid var(--c-line);display:grid;place-items:center;font-size:15px;font-weight:800;color:var(--c-ink);font-variant-numeric:tabular-nums;transition:border-color .24s,color .24s,box-shadow .24s}
.tl-item:hover .tl-node{border-color:var(--c-accent);color:var(--c-accent);box-shadow:0 0 0 5px rgba(255,90,31,.1)}
.tl-body{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:26px 28px;box-shadow:var(--sh-1);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease}
.tl-item:hover .tl-body{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.3)}
.tl-body h3{font-size:21px;font-weight:600}
.tl-body p{margin-top:12px;color:var(--c-muted);font-size:16px;line-height:1.85}
.tl-figure{margin:20px 0 0;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);background:var(--c-surface-2)}
.tl-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.tl-figure figcaption{padding:10px 14px;font-size:13px;color:var(--c-muted);letter-spacing:.02em;background:var(--c-surface)}
.tl-tips{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);background:var(--c-surface-2);color:var(--c-ink);font-size:12px;font-weight:600;letter-spacing:.02em}
.chip-accent{background:rgba(255,90,31,.12);color:#C43C0E}

/* ---------- notice ---------- */
.notice-grid{margin-top:48px;display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.notice-card{background:var(--c-surface);border:1px solid var(--c-line);border-left:4px solid var(--c-accent);border-radius:var(--r-card);padding:24px 24px 26px;box-shadow:var(--sh-1);transition:transform .24s ease,box-shadow .24s ease}
.notice-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.notice-card h3{font-size:18px;font-weight:600}
.notice-card p{margin-top:10px;font-size:15px;color:var(--c-muted);line-height:1.85}
.notice-card .n-num{display:block;font-size:12px;font-weight:800;letter-spacing:.2em;color:var(--c-accent);margin-bottom:10px}

/* ---------- faq ---------- */
.faq{margin-top:44px;border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;padding:24px 2px;background:none;border:0;text-align:left;cursor:pointer;color:var(--c-ink);font-size:18px;font-weight:600;line-height:1.5;transition:color .2s}
.faq-q:hover{color:var(--c-accent)}
.faq-q .faq-icon{flex:0 0 auto;width:28px;height:28px;border-radius:50%;border:1.5px solid var(--c-line);display:grid;place-items:center;color:var(--c-muted);font-size:12px;transition:transform .28s ease,border-color .24s,color .24s,background .24s}
.faq-item.is-open .faq-icon{transform:rotate(180deg);border-color:var(--c-accent);color:var(--c-accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s cubic-bezier(.2,.7,.2,1)}
.faq-a p{padding:0 2px 24px;font-size:15.5px;color:var(--c-muted);line-height:1.9;max-width:860px}
.faq-item.is-open .faq-a{max-height:420px}

/* ---------- cta ---------- */
.cta-card{background:var(--c-ink);border-radius:18px;padding:52px 48px;color:#fff;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;position:relative;overflow:hidden}
.cta-card::after{content:"";position:absolute;right:-90px;bottom:-110px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(200,240,42,.16),transparent 68%)}
.cta-card h2{color:#fff;font-size:clamp(24px,2.8vw,34px);font-weight:800;letter-spacing:-.015em;line-height:1.24}
.cta-card p{margin-top:14px;color:var(--c-ink-muted);font-size:16px;line-height:1.85;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;position:relative;z-index:1}
.cta-facts{display:flex;flex-wrap:wrap;gap:12px 26px;margin-top:26px;font-size:13px;color:var(--c-ink-muted);letter-spacing:.02em}
.cta-facts i{color:var(--c-signal);margin-right:6px}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s cubic-bezier(.2,.7,.2,1),transform .48s cubic-bezier(.2,.7,.2,1)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- drawer ---------- */
.drawer{position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);background:var(--c-surface);z-index:200;padding:22px 22px 32px;overflow-y:auto;transform:translateX(102%);transition:transform .3s cubic-bezier(.2,.7,.2,1);box-shadow:-24px 0 48px -32px rgba(0,0,0,.55);display:none}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--c-line)}
.drawer-close{width:38px;height:38px;border-radius:var(--r-btn);border:1.5px solid var(--c-line);background:var(--c-surface);color:var(--c-ink);cursor:pointer}
.drawer-nav{margin-top:18px;display:flex;flex-direction:column}
.drawer-nav a{padding:14px 2px;border-bottom:1px solid var(--c-line);font-size:16px;font-weight:600;color:var(--c-ink);text-decoration:none}
.drawer-nav a.is-active{color:var(--c-accent)}
.drawer-search{margin-top:20px;display:flex;align-items:center;gap:10px;height:44px;padding:0 16px;border:1px solid var(--c-line);border-radius:var(--r-input);background:var(--c-surface-2)}
.drawer-search input{flex:1;border:0;background:transparent;outline:none;font-size:14px}
.drawer .btn{width:100%;margin-top:18px}
.drawer-foot{margin-top:20px;font-size:13px;color:var(--c-muted);line-height:1.8}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:#D8E2DE;padding:76px 0 30px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand .logo-mark{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16)}
.foot-brand .brand-name{color:#fff;font-size:16px;font-weight:800}
.foot-col p{font-size:14px;color:var(--c-ink-muted);line-height:1.9;max-width:340px}
.foot-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.02em}
.foot-col ul li{margin-bottom:11px}
.foot-col ul a{font-size:14px;color:var(--c-ink-muted);text-decoration:none;transition:color .2s}
.foot-col ul a:hover{color:var(--c-signal)}
.kv{font-size:14px;color:var(--c-ink-muted);margin-bottom:10px;line-height:1.7}
.kv b{color:#fff;font-weight:600;margin-right:8px}
.foot-bottom{margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:#8FA19A;letter-spacing:.02em}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--sec-y:72px}
  .search-box{max-width:230px}
  .notice-grid{grid-template-columns:repeat(2,1fr)}
  .cta-card{grid-template-columns:1fr;padding:44px 34px}
  .cta-actions{justify-content:flex-start}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:960px){
  .search-box{display:none}
  .burger{display:inline-flex}
  .drawer{display:block}
  .topbar-actions{gap:12px}
}
@media (max-width:640px){
  :root{--sec-y:48px}
  body{font-size:16px;line-height:1.8}
  .container{padding:0 20px}
  .topbar-inner{height:58px;gap:14px}
  .site-header.is-stuck .topbar-inner{height:52px}
  .brand-name{font-size:15px}
  .status-pill{display:none}
  .channel-nav{gap:22px;height:46px}
  .hero{padding:56px 0 50px}
  .hero .hero-sub{font-size:15.5px}
  .hero-actions .btn{width:100%}
  .timeline{padding-left:0;margin-top:38px}
  .timeline::before{display:none}
  .tl-node{position:static;width:auto;height:auto;border-radius:var(--r-pill);display:inline-flex;padding:4px 14px;font-size:12px;letter-spacing:.16em;margin-bottom:12px}
  .tl-body{padding:22px 20px}
  .tl-body h3{font-size:19px}
  .notice-grid{grid-template-columns:1fr}
  .cta-card{padding:34px 22px;border-radius:14px}
  .cta-actions .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .faq-q{font-size:16.5px;padding:20px 2px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
  .tl-item:hover .tl-body,.notice-card:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --c-ink:#0F2A24;
  --c-accent:#FF5A1F;
  --c-signal:#C8F02A;
  --c-bg:#F6F4EF;
  --c-surface:#FFFFFF;
  --c-surface-2:#EFECE5;
  --c-text:#232A28;
  --c-body:#3C4542;
  --c-muted:#6E7A75;
  --c-line:#E4E1DA;
  --c-ink-muted:#A9B7B1;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,26,23,.06),0 12px 32px -18px rgba(12,26,23,.18);
  --sh-2:0 2px 6px rgba(12,26,23,.08),0 22px 48px -24px rgba(12,26,23,.28);
  --sect:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.2}
h1{font-size:clamp(32px,5vw,56px);font-weight:800;line-height:1.12;letter-spacing:-0.02em}
h2{font-size:clamp(26px,3.4vw,40px);font-weight:700}
h3{font-size:clamp(20px,2vw,24px);font-weight:600;line-height:1.35}
p{margin:0 0 1.1em}
ul{margin:0;padding:0;list-style:none}
.container{max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:var(--sect) 0}
.reveal{opacity:0;transform:translateY(12px);transition:opacity .48s cubic-bezier(.2,.7,.2,1),transform .48s cubic-bezier(.2,.7,.2,1)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 按钮 ---------- */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);border:1.5px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;overflow:hidden;
  background:transparent;transition:color .28s ease,border-color .28s ease,transform .18s ease;
}
.btn>span,.btn>i{position:relative;z-index:1}
.btn::before{content:"";position:absolute;top:0;left:0;bottom:0;width:0;transition:width .28s cubic-bezier(.2,.7,.2,1)}
.btn-primary{background:var(--c-accent);color:#fff}
.btn-primary::before{background:var(--c-ink)}
.btn-primary:hover::before,.btn-primary:focus-visible::before{width:100%}
.btn-ghost{background:transparent;color:var(--c-ink);border-color:var(--c-ink)}
.btn-ghost::before{background:var(--c-ink)}
.btn-ghost:hover{color:#fff}
.btn-ghost:hover::before{width:100%}
.btn-onDark{background:var(--c-accent);color:#fff}
.btn-onDark::before{background:#fff}
.btn-onDark:hover{color:var(--c-ink)}
.btn-onDark:hover::before{width:100%}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.btn[disabled]{opacity:.4;cursor:not-allowed}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-accent);border-bottom:1px solid transparent;transition:border-color .24s}
.link-more svg{transition:transform .24s}
.link-more:hover svg{transform:translateX(3px)}
.link-more:hover{border-color:var(--c-accent)}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:var(--r-pill);font-size:12px;letter-spacing:.02em;background:var(--c-surface-2);color:var(--c-ink);font-weight:600}
.badge-accent{background:rgba(255,90,31,.12);color:#C63A08}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--c-signal)}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:120;background:var(--c-surface);transition:box-shadow .24s ease,border-color .24s ease;border-bottom:1px solid transparent}
.site-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(12,26,23,.45);border-bottom-color:var(--c-line)}
.topbar{padding:14px 0;transition:padding .24s ease}
.site-header.is-scrolled .topbar{padding:6px 0}
.topbar-inner{display:flex;align-items:center;gap:20px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:10px;
  background:var(--c-ink);color:var(--c-signal);font-size:14px;font-weight:800;letter-spacing:.02em;
}
.brand-name{font-size:17px;font-weight:800;color:var(--c-ink);letter-spacing:-0.01em;white-space:nowrap}
.search-box{
  flex:1 1 auto;max-width:340px;display:flex;align-items:center;gap:6px;height:40px;padding:0 6px 0 14px;
  background:var(--c-surface-2);border:1px solid transparent;border-radius:var(--r-input);
  transition:border-color .2s,background .2s;
}
.search-box:focus-within{border-color:var(--c-accent);background:#fff}
.search-box input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px}
.search-box input::placeholder{color:var(--c-muted)}
.search-box button{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border:0;border-radius:8px;background:var(--c-ink);color:#fff;cursor:pointer;transition:background .2s}
.search-box button:hover{background:var(--c-accent)}
.topbar-actions{display:flex;align-items:center;gap:14px;margin-left:auto}
.status-pill{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--c-muted);letter-spacing:.02em;white-space:nowrap}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--c-line);border-radius:10px;background:var(--c-surface);cursor:pointer;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.channel-bar{border-top:1px solid var(--c-line);background:var(--c-surface)}
.channel-inner{display:flex;align-items:center;gap:18px;height:52px}
.channel-nav{display:flex;align-items:center;gap:6px;overflow-x:auto;scrollbar-width:none}
.channel-nav::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;display:inline-flex;align-items:center;height:52px;padding:0 14px;
  font-size:15px;font-weight:600;color:var(--c-ink);white-space:nowrap;transition:color .2s;
}
.channel-link::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .24s cubic-bezier(.2,.7,.2,1)}
.channel-link:hover{color:var(--c-accent)}
.channel-link:hover::after,.channel-link.is-active::after{transform:scaleX(1)}
.channel-link.is-active{color:var(--c-accent)}
.channel-sep{width:1px;height:18px;background:var(--c-line);flex:0 0 auto}
.hot-words{display:flex;align-items:center;gap:8px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.hot-words::-webkit-scrollbar{display:none}
.hot-words a{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);background:var(--c-surface-2);font-size:12px;color:var(--c-ink);white-space:nowrap;transition:background .2s,color .2s}
.hot-words a:hover{background:var(--c-ink);color:#fff}

.mobile-drawer{
  position:absolute;left:0;right:0;top:100%;background:var(--c-surface);border-bottom:1px solid var(--c-line);
  padding:18px 24px 26px;display:none;box-shadow:0 24px 40px -28px rgba(12,26,23,.5);
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a.drawer-link{display:block;padding:12px 0;border-bottom:1px solid var(--c-line);font-size:16px;font-weight:600}
.mobile-drawer a.drawer-link.is-active{color:var(--c-accent)}
.mobile-drawer .drawer-hot{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 20px}
.mobile-drawer .drawer-hot a{display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-pill);background:var(--c-surface-2);font-size:12px;font-weight:600}

/* ---------- Hero ---------- */
.hero{position:relative;color:#fff;background:var(--c-ink);overflow:hidden}
.hero-cat{padding:76px 0 64px}
.hero-cat::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,42,36,.92) 0%,rgba(15,42,36,.78) 48%,rgba(15,42,36,.60) 100%),
             url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero-inner{position:relative;z-index:1;max-width:900px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.02em;color:var(--c-ink-muted);margin-bottom:20px}
.breadcrumb a{color:var(--c-ink-muted);border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.breadcrumb a:hover{color:#fff;border-color:var(--c-accent)}
.breadcrumb .current{color:#fff}
.hero h1{color:#fff}
.hero h1 em{font-style:normal;color:var(--c-accent)}
.hero-sub{margin:18px 0 30px;font-size:17px;line-height:1.8;color:#D6DEDA;max-width:660px}
.hero-search{
  display:flex;align-items:center;gap:8px;max-width:560px;height:56px;padding:0 8px 0 18px;
  background:rgba(255,255,255,.96);border-radius:var(--r-input);
}
.hero-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:15px}
.hero-search input::placeholder{color:var(--c-muted)}
.hero-search .btn{height:42px;padding:0 20px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 12px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.22);font-size:13px;color:#DDE4E0}

/* ---------- 通用板块标题 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.sec-index{display:block;font-size:13px;font-weight:700;letter-spacing:.16em;color:var(--c-accent);margin-bottom:12px}
.sec-desc{margin-top:14px;font-size:16px;color:var(--c-muted);max-width:640px}
.sec-link{flex:0 0 auto}

/* ---------- 顶部筛选条 ---------- */
.filter-bar{position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:14px 18px;box-shadow:var(--sh-1);display:flex;align-items:center;gap:10px;overflow-x:auto;scrollbar-width:none}
.filter-bar::-webkit-scrollbar{display:none}
.filter-bar a{position:relative;display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:var(--r-pill);font-size:14px;font-weight:600;color:var(--c-muted);white-space:nowrap;transition:background .2s,color .2s}
.filter-bar a:hover{background:var(--c-surface-2);color:var(--c-ink)}
.filter-bar a.is-current{color:#fff;background:var(--c-ink)}
.filter-bar a.is-current::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--c-accent);border-radius:2px}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 48px}
.faq-col{border-top:1px solid var(--c-line)}
.qa details{border-bottom:1px solid var(--c-line)}
.qa summary{
  list-style:none;display:flex;align-items:flex-start;gap:14px;padding:22px 0;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--c-text);transition:color .2s;
}
.qa summary::-webkit-details-marker{display:none}
.qa summary:hover{color:var(--c-accent)}
.qa summary .q-index{flex:0 0 auto;font-size:13px;font-weight:700;color:var(--c-accent);letter-spacing:.08em;line-height:1.9}
.qa summary::after{
  content:"+";margin-left:auto;font-size:22px;line-height:1.3;font-weight:400;color:var(--c-muted);
  transition:color .24s,transform .24s;
}
.qa details[open] summary::after{content:"−";color:var(--c-accent)}
.qa details[open] summary{color:var(--c-ink)}
.qa .a{padding:0 0 24px 34px;color:var(--c-body);font-size:15.5px}
.qa .a p:last-child{margin-bottom:0}
.qa .a ul{margin:10px 0 0;padding-left:2px}
.qa .a li{position:relative;padding-left:16px;margin-bottom:8px;color:var(--c-body)}
.qa .a li::before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--c-signal)}

/* ---------- 联系卡 ---------- */
.contact-wrap{display:grid;grid-template-columns:1.5fr 1fr;gap:24px;align-items:stretch}
.contact-card{
  background:var(--c-ink);color:#fff;border-radius:var(--r-card);padding:40px;position:relative;overflow:hidden;
  border:1px solid rgba(255,255,255,.08);
}
.contact-card::after{content:"";position:absolute;right:-60px;bottom:-80px;width:240px;height:240px;border-radius:50%;background:rgba(200,240,42,.10)}
.contact-card h3{color:#fff;font-size:24px;margin-bottom:14px}
.contact-card p{color:var(--c-ink-muted);font-size:15.5px;max-width:560px}
.contact-card .btn{margin-top:8px}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:32px;box-shadow:var(--sh-1)}
.side-card h4{font-size:16px;margin-bottom:18px}
.side-list li{display:flex;align-items:flex-start;gap:10px;padding:12px 0;border-bottom:1px solid var(--c-line);font-size:14.5px;color:var(--c-body)}
.side-list li:last-child{border-bottom:0}
.side-list li b{color:var(--c-ink);font-weight:600}

/* ---------- 相关阅读 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .28s cubic-bezier(.2,.7,.2,1),box-shadow .28s,border-color .28s;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(255,90,31,.3)}
.card-media{position:relative;aspect-ratio:16/10;background:var(--c-surface-2);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.2,.7,.2,1)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-body h3{font-size:19px}
.card-body h3 a{transition:color .2s}
.card-body h3 a:hover{color:var(--c-accent)}
.card-body p{margin:0;font-size:14.5px;color:var(--c-muted);line-height:1.75}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-muted);letter-spacing:.02em}

/* ---------- 结尾条 ---------- */
.end-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  background:var(--c-accent);color:#fff;border-radius:var(--r-card);padding:36px 40px;
}
.end-bar h3{color:#fff;font-size:clamp(20px,2.2vw,26px);margin-bottom:6px}
.end-bar p{margin:0;color:rgba(255,255,255,.88);font-size:15px}
.end-actions{display:flex;gap:12px;flex-wrap:wrap}
.end-actions .btn-white{background:#fff;color:var(--c-ink)}
.end-actions .btn-white::before{background:var(--c-ink)}
.end-actions .btn-white:hover{color:#fff}
.end-actions .btn-white:hover::before{width:100%}
.back-home{display:inline-flex;align-items:center;gap:8px;margin-top:24px;font-size:14px;font-weight:600;color:var(--c-muted);border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.back-home:hover{color:var(--c-accent);border-color:var(--c-accent)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#D8E0DC;padding:72px 0 28px;margin-top:var(--sect)}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand .logo-mark{background:rgba(255,255,255,.08);color:var(--c-signal)}
.foot-brand .brand-name{color:#fff;font-size:16px}
.foot-col p{color:var(--c-ink-muted);font-size:14.5px;line-height:1.8;margin:0;max-width:340px}
.foot-col h4{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.foot-col ul li{margin-bottom:10px}
.foot-col ul a{font-size:14.5px;color:#C4CFCA;border-bottom:1px solid transparent;transition:color .2s,border-color .2s}
.foot-col ul a:hover{color:var(--c-signal);border-color:var(--c-signal)}
.kv{font-size:14.5px;color:#C4CFCA;margin-bottom:10px;display:flex;gap:10px;flex-wrap:wrap}
.kv b{color:#fff;font-weight:600}
.foot-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:var(--c-ink-muted);letter-spacing:.02em;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--sect:72px}
  .search-box{max-width:220px}
  .hot-words{display:none}
  .faq-grid{gap:0 32px}
  .contact-wrap{grid-template-columns:1fr}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .search-box{display:none}
  .status-pill{display:none}
  .nav-toggle{display:inline-flex}
  .channel-inner{height:46px}
  .channel-link{height:46px;font-size:14.5px}
  .hero-cat{padding:52px 0 48px}
  .faq-grid{grid-template-columns:1fr}
  .card-grid{grid-template-columns:1fr}
  .end-bar{padding:28px 24px}
  .contact-card{padding:28px}
  .side-card{padding:24px}
}
@media (max-width:640px){
  :root{--sect:48px}
  .container{padding:0 20px}
  .channel-inner{overflow-x:auto}
  .hero-sub{font-size:16px}
  .hero-search{height:52px;padding:0 6px 0 14px}
  .hero-search .btn{height:40px;padding:0 14px}
  .qa summary{font-size:16px}
  .qa .a{padding-left:0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .reveal{opacity:1!important;transform:none!important}
}