/* roulang page: index */
:root{
  --bg-base:#071310;
  --bg-elev:#0E1E19;
  --bg-card:#13281F;
  --line:rgba(232,255,240,.09);
  --line-strong:rgba(232,255,240,.18);
  --ink-hi:#F1F7F2;
  --ink-mid:#A8B8AF;
  --ink-low:#67786F;
  --brand:#C7F24A;
  --brand-ink:#0B1408;
  --hot:#FF6A2B;
  --live:#FF4757;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(0,0,0,.35);
  --sh-2:0 14px 34px rgba(0,0,0,.48);
  --sh-brand:0 0 0 1px rgba(199,242,74,.55),0 10px 28px rgba(199,242,74,.18);
  --container:1280px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--ink-mid);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:.95rem;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;background:var(--bg-card);border:1px solid var(--line);}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink-hi);font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.tnum{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:var(--bg-base);border-bottom:1px solid var(--line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.brand-row{height:64px;display:flex;align-items:center}
@media (min-width:1024px){.brand-row{height:76px}}
.brand-inner{display:flex;align-items:center;gap:16px;width:100%}
.logo{display:flex;flex-direction:column;line-height:1.12;flex-shrink:0}
.logo-line1{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--ink-low);text-transform:uppercase}
.logo-line2{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--ink-hi)}
.logo:hover .logo-line2{color:var(--brand)}
@media (min-width:1024px){
  .logo-line1{font-size:14px}
  .logo-line2{font-size:19px}
}
.nav-search{display:none;flex:1;max-width:400px;margin-left:12px;position:relative}
@media (min-width:1024px){.nav-search{display:block}}
.nav-search input{
  width:100%;height:44px;border-radius:var(--r-pill);
  background:var(--bg-card);border:1px solid var(--line);
  color:var(--ink-hi);padding:0 44px 0 18px;
  transition:border-color .2s ease;
}
.nav-search input::placeholder{color:var(--ink-low)}
.nav-search input:focus{outline:none;border-color:var(--brand)}
.nav-search .search-btn{position:absolute;right:6px;top:50%;transform:translateY(-50%);width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--ink-low)}
.nav-search .search-btn:hover{color:var(--brand)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.nav-rank{display:none;font-size:.86rem;color:var(--ink-mid);letter-spacing:.02em}
.nav-rank:hover{color:var(--brand)}
@media (min-width:768px){.nav-rank{display:inline-block}}
.nav-cta{display:none}
@media (min-width:1024px){.nav-cta{display:inline-flex}}
.nav-toggle{width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--line-strong);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-hi);border-radius:2px}
.nav-toggle:hover{border-color:var(--brand)}
.nav-toggle:hover span{background:var(--brand)}
@media (min-width:1024px){.nav-toggle{display:none}}

.channel-row{border-top:1px solid var(--line);height:48px;display:flex;align-items:center}
.channel-inner{display:flex;align-items:center;gap:0;overflow-x:auto;scrollbar-width:none;height:100%}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;height:100%;display:inline-flex;align-items:center;
  padding:0 16px;font-size:.88rem;color:var(--ink-mid);white-space:nowrap;
  border-right:1px solid var(--line);
}
.channel-link:first-child{padding-left:0;border-left:0}
.channel-link:hover{color:var(--ink-hi)}
.channel-link.is-active{color:var(--brand)}
.channel-link.is-active::after{content:"";position:absolute;left:16px;right:16px;bottom:0;height:2px;background:var(--brand);border-radius:2px}
.channel-link:first-child.is-active::after{left:0}

/* 移动端抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(3,8,6,.72);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:290px;max-width:86vw;
  background:var(--bg-elev);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .28s ease;z-index:90;
  display:flex;flex-direction:column;padding:22px 0;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 20px 18px;border-bottom:1px solid var(--line)}
.drawer-title{font-size:.95rem;font-weight:700;color:var(--ink-hi)}
.drawer-close{width:34px;height:34px;border-radius:50%;border:1px solid var(--line-strong);color:var(--ink-mid);display:flex;align-items:center;justify-content:center}
.drawer-close:hover{color:var(--brand);border-color:var(--brand)}
.drawer-nav{padding:8px 0;flex:1;overflow-y:auto}
.drawer-nav a{display:flex;align-items:center;height:52px;padding:0 20px;font-size:.95rem;color:var(--ink-mid);border-bottom:1px solid var(--line)}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--brand)}
.drawer-foot{padding:18px 20px 0;border-top:1px solid var(--line)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);padding:12px 24px;font-size:.9rem;font-weight:600;
  transition:transform .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand);color:var(--brand-ink);border-color:var(--brand)}
.btn-primary:hover{background:#bde33f;transform:translateY(-1px)}
.btn-ghost{border-color:var(--line-strong);color:var(--ink-hi)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-dark{background:var(--brand-ink);color:var(--brand);border-color:var(--brand-ink)}
.btn-dark:hover{background:#12200c;transform:translateY(-1px)}
.btn-outline-dark{border-color:rgba(11,20,8,.45);color:var(--brand-ink)}
.btn-outline-dark:hover{border-color:var(--brand-ink);background:rgba(11,20,8,.08)}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:.86rem;color:var(--ink-mid);font-weight:600}
.link-more .arrow{transition:transform .2s ease}
.link-more:hover{color:var(--brand)}
.link-more:hover .arrow{transform:translateX(4px)}

/* ============ 徽章 / 标签 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;border-radius:var(--r-pill);padding:4px 12px;font-size:12px;font-weight:600;border:1px solid var(--line-strong);color:var(--ink-mid)}
.badge-brand{border-color:rgba(199,242,74,.5);color:var(--brand)}
.badge-hot{border-color:rgba(255,106,43,.5);color:var(--hot)}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--live);display:inline-block}
.meta{font-size:.78rem;font-weight:500;letter-spacing:.02em;color:var(--ink-low);font-variant-numeric:tabular-nums}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;min-height:560px;display:flex;align-items:flex-end;border-bottom:1px solid var(--line)}
@media (min-width:1024px){.hero{min-height:680px;align-items:center}}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;border:0;background:var(--bg-card)}
.hero-veil{position:absolute;inset:0;z-index:1;
  background:
    linear-gradient(to top,rgba(7,19,16,0) 0%,rgba(7,19,16,.92) 62%,#071310 100%),
    linear-gradient(to right,rgba(7,19,16,.94) 0%,rgba(7,19,16,.55) 48%,rgba(7,19,16,.15) 100%);
}
.hero-inner{position:relative;z-index:2;display:flex;align-items:center;gap:48px;padding-top:64px;padding-bottom:56px;width:100%}
.hero-copy{max-width:620px}
.hero-title{
  font-size:clamp(2.25rem,5.2vw,3.9rem);
  line-height:1.08;letter-spacing:-.03em;font-weight:800;
  margin:18px 0 0;
}
.hero-sub{margin-top:16px;font-size:1rem;color:var(--ink-mid);max-width:540px}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}
.hero-stats{margin-top:34px;display:flex;flex-wrap:wrap;gap:0;align-items:center}
.hero-stats li{display:flex;flex-direction:column;padding:0 20px;border-left:1px solid var(--line-strong)}
.hero-stats li:first-child{padding-left:0;border-left:0}
.hero-stats strong{font-size:1.5rem;line-height:1.1;font-weight:800;color:var(--ink-hi);font-variant-numeric:tabular-nums}
.hero-stats span{font-size:.78rem;color:var(--ink-low);margin-top:4px;letter-spacing:.02em}
.hero-cards{display:none}
@media (min-width:1024px){
  .hero-cards{display:flex;gap:18px;margin-left:auto;align-items:flex-start}
  .hero-card{
    width:180px;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);
    background:var(--bg-card);box-shadow:var(--sh-1);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
  }
  .hero-card:nth-child(1){margin-top:0}
  .hero-card:nth-child(2){margin-top:38px}
  .hero-card:nth-child(3){margin-top:18px}
  .hero-card:hover{transform:translateY(-6px);border-color:var(--brand);box-shadow:var(--sh-brand)}
  .hero-card img{width:180px;height:260px;object-fit:cover;border:0;border-radius:0}
  .hero-card span{display:block;padding:10px 12px;font-size:.8rem;color:var(--ink-mid);line-height:1.5}
}

/* ============ 通用板块 ============ */
.section{padding:56px 0;border-bottom:1px solid var(--line)}
@media (min-width:1024px){.section{padding:96px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px;flex-wrap:wrap}
.section-title{font-size:clamp(1.4rem,2.4vw,2rem);line-height:1.2;letter-spacing:-.01em}
.section-desc{margin-top:8px;font-size:.86rem;color:var(--ink-low);max-width:620px}
.head-tools{display:flex;align-items:center;gap:12px}
.round-btn{width:38px;height:38px;border-radius:50%;border:1px solid var(--line-strong);color:var(--ink-mid);display:none;align-items:center;justify-content:center;transition:border-color .2s ease,color .2s ease}
.round-btn:hover{border-color:var(--brand);color:var(--brand)}
@media (min-width:1280px){.round-btn{display:inline-flex}}

/* ============ 横滑片库 ============ */
.rail-wrap{position:relative}
.rail-wrap::before,.rail-wrap::after{content:"";position:absolute;top:0;bottom:0;width:36px;z-index:2;pointer-events:none}
.rail-wrap::before{left:0;background:linear-gradient(to right,var(--bg-base),rgba(7,19,16,0))}
.rail-wrap::after{right:0;background:linear-gradient(to left,var(--bg-base),rgba(7,19,16,0))}
.rail{display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 0 12px;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.rail-card{flex:0 0 176px;width:176px;scroll-snap-align:start}
@media (min-width:768px){.rail-card{flex:0 0 208px;width:208px}}
.rail-cover{position:relative;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);background:var(--bg-card);aspect-ratio:2/3}
.rail-cover img{width:100%;height:100%;object-fit:cover;border:0;border-radius:0;transition:transform .3s ease}
.rail-card:hover .rail-cover{border-color:var(--brand)}
.rail-card:hover .rail-cover img{transform:scale(1.05)}
.rail-title{margin-top:10px;font-size:.9rem;font-weight:600;color:var(--ink-hi);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rail-card:hover .rail-title{color:var(--brand)}
.rail-meta{margin-top:4px;display:block}
.rail-tag{position:absolute;top:10px;left:10px;background:rgba(7,19,16,.78);border:1px solid rgba(199,242,74,.5);color:var(--brand);border-radius:var(--r-pill);padding:2px 10px;font-size:11px;font-weight:600}

/* ============ 热播推荐 ============ */
.rank-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
@media (min-width:768px){.rank-grid{grid-template-columns:repeat(2,1fr);gap:20px}}
@media (min-width:1024px){.rank-grid{grid-template-columns:repeat(4,1fr);gap:24px}}
.rank-card{display:block;border-radius:var(--r-md);border:1px solid var(--line);background:var(--bg-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.rank-card:hover{transform:translateY(-6px);border-color:var(--brand);box-shadow:var(--sh-brand)}
.rank-cover{position:relative;aspect-ratio:2/3;overflow:hidden}
.rank-cover img{width:100%;height:100%;object-fit:cover;border:0;border-radius:0;transition:transform .3s ease}
.rank-card:hover .rank-cover img{transform:scale(1.05)}
.rank-num{
  position:absolute;left:10px;top:6px;font-size:2.6rem;font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px var(--brand);font-variant-numeric:tabular-nums;
}
.rank-body{padding:12px 14px 16px}
.rank-title{font-size:1.06rem;line-height:1.5;font-weight:600;color:var(--ink-hi);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rank-card:hover .rank-title{color:var(--brand)}
.rank-meta{display:block;margin-top:8px}

/* ============ 片单分区（非对称） ============ */
.pick-block + .pick-block{margin-top:48px}
.pick-head{display:flex;align-items:center;gap:12px;margin-bottom:20px}
.pick-head h3{font-size:1.06rem;line-height:1.5;font-weight:600;padding-left:12px;position:relative}
.pick-head h3::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:18px;border-radius:2px;background:var(--brand)}
.pick-head .link-more{margin-left:auto}
.pick-grid{display:grid;grid-template-columns:repeat(2,1fr);grid-auto-rows:120px;gap:14px}
@media (min-width:768px){.pick-grid{grid-template-columns:repeat(4,1fr);grid-auto-rows:132px;gap:16px}}
.pick-card{position:relative;border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);background:var(--bg-card);display:block;transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;box-shadow:var(--sh-1)}
.pick-card:hover{border-color:var(--brand);transform:translateY(-6px);box-shadow:var(--sh-brand)}
.pick-card img{width:100%;height:100%;object-fit:cover;border:0;border-radius:0;transition:transform .3s ease}
.pick-card:hover img{transform:scale(1.04)}
.pick-card figcaption{position:absolute;left:0;right:0;bottom:0;padding:14px;background:linear-gradient(to top,rgba(7,19,16,.94),rgba(7,19,16,0))}
.pick-card .pc-title{font-size:.98rem;font-weight:600;color:var(--ink-hi);line-height:1.45}
.pick-card .pc-desc{margin-top:4px;font-size:.78rem;color:var(--ink-low)}
.pick-card--big{grid-column:span 2;grid-row:span 2}
.pick-card--big .pc-title{font-size:1.2rem}
@media (max-width:767px){
  .pick-card--big{grid-column:span 2;grid-row:span 1}
}

/* ============ 最新信息 ============ */
.feed-layout{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:1024px){.feed-layout{grid-template-columns:8fr 4fr;gap:48px}}
.feed-item{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--line);transition:background-color .2s ease}
.feed-item:first-child{padding-top:0}
.feed-thumb{flex:0 0 96px;width:96px;height:64px;border-radius:12px;overflow:hidden;border:1px solid var(--line);background:var(--bg-card)}
@media (min-width:768px){.feed-thumb{flex:0 0 160px;width:160px;height:100px}}
.feed-thumb img{width:100%;height:100%;object-fit:cover;border:0;border-radius:0}
.feed-body{flex:1;min-width:0}
.feed-title{margin-top:8px;font-size:1.06rem;font-weight:600;line-height:1.5;color:var(--ink-hi);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s ease}
.feed-item:hover .feed-title{color:var(--brand)}
.feed-desc{margin-top:6px;font-size:.86rem;color:var(--ink-low);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.feed-foot{margin-top:10px;display:flex;align-items:center;gap:14px}
.feed-foot .arrow{margin-left:auto;color:var(--ink-low);transition:transform .2s ease,color .2s ease}
.feed-item:hover .feed-foot .arrow{transform:translateX(4px);color:var(--brand)}
.feed-side{border-top:1px solid var(--line);padding-top:8px}
.feed-side h3{font-size:.95rem;font-weight:600;color:var(--ink-hi);padding-bottom:12px;border-bottom:1px solid var(--line);margin-bottom:4px}
.brief-item{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--line)}
.brief-num{flex:0 0 22px;font-size:.8rem;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.6}
.brief-title{font-size:.88rem;color:var(--ink-mid);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s ease}
.brief-item:hover .brief-title{color:var(--brand)}
.brief-time{display:block;margin-top:4px}

.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  border:1px dashed var(--line-strong);border-radius:var(--r-lg);background:var(--bg-elev);text-align:center;padding:32px;
}
.empty-icon{width:48px;height:48px;border-radius:50%;border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;color:var(--ink-low);font-size:1.2rem}
.empty-state p{font-size:.92rem;color:var(--ink-low)}

/* ============ 数据板块 ============ */
.stat-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:640px){.stat-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.stat-grid{grid-template-columns:repeat(4,1fr);gap:24px}}
.stat-card{border:1px solid var(--line);background:var(--bg-elev);border-radius:var(--r-lg);padding:26px 24px;transition:border-color .25s ease,transform .25s ease}
.stat-card:hover{border-color:rgba(199,242,74,.5);transform:translateY(-6px)}
.stat-value{font-size:2rem;font-weight:800;color:var(--ink-hi);line-height:1.1;font-variant-numeric:tabular-nums}
.stat-value em{font-style:normal;color:var(--brand);font-size:1.2rem;margin-left:4px}
.stat-label{margin-top:10px;font-size:.9rem;font-weight:600;color:var(--ink-hi)}
.stat-text{margin-top:6px;font-size:.82rem;color:var(--ink-low)}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:10px}
.faq-item{border:1px solid var(--line);border-radius:var(--r-md);background:var(--bg-elev);overflow:hidden;transition:border-color .2s ease}
.faq-item[open]{border-color:rgba(199,242,74,.45)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;padding:0 20px;cursor:pointer;font-size:.98rem;font-weight:600;color:var(--ink-hi);list-style:none;border-left:3px solid transparent;transition:border-color .2s ease,color .2s ease}
.faq-q::-webkit-details-marker{display:none}
.faq-q:hover{color:var(--brand)}
.faq-item[open] .faq-q{border-left-color:var(--brand);color:var(--brand)}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform .2s ease}
.faq-icon::before{left:0;right:0;top:7px;height:2px}
.faq-icon::after{top:0;bottom:0;left:7px;width:2px}
.faq-item[open] .faq-icon::after{transform:scaleY(0)}
.faq-a{padding:0 20px 20px;font-size:.9rem;color:var(--ink-mid)}
.faq-a p{animation:fadeIn .2s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}

/* ============ CTA ============ */
.cta-panel{background:var(--brand);border-radius:24px;padding:32px;display:flex;flex-direction:column;gap:24px}
@media (min-width:1024px){.cta-panel{flex-direction:row;align-items:center;justify-content:space-between;padding:56px}}
.cta-panel h2{color:var(--brand-ink);font-size:clamp(1.4rem,2.4vw,2rem);line-height:1.2}
.cta-panel p{margin-top:10px;color:rgba(11,20,8,.78);font-size:.92rem;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);background:var(--bg-base);padding:56px 0 28px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}}
.footer-logo{display:flex;flex-direction:column;line-height:1.12}
.footer-logo .logo-line2{color:var(--ink-hi);font-size:17px}
.footer-about{margin-top:14px;font-size:.88rem;color:var(--ink-mid);max-width:340px}
.footer-keys{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}
.footer-col h4{font-size:.85rem;font-weight:600;color:var(--brand);letter-spacing:.04em;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col li{font-size:.9rem;color:var(--ink-mid)}
.footer-col a:hover{color:var(--ink-hi)}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);text-align:center}
.footer-bottom p{font-size:12px;color:var(--ink-low)}
.footer-bottom p + p{margin-top:6px}

/* roulang page: article */
:root{
  --bg-base:#071310;
  --bg-elev:#0E1E19;
  --bg-card:#13281F;
  --line:rgba(232,255,240,.09);
  --line-strong:rgba(232,255,240,.18);
  --ink-hi:#F1F7F2;
  --ink-mid:#A8B8AF;
  --ink-low:#67786F;
  --brand:#C7F24A;
  --brand-ink:#0B1408;
  --hot:#FF6A2B;
  --live:#FF4757;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(0,0,0,.35);
  --sh-2:0 14px 34px rgba(0,0,0,.48);
  --sh-brand:0 0 0 1px rgba(199,242,74,.55),0 10px 28px rgba(199,242,74,.18);
  --pad-section:96px;
  --container:1280px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--ink-mid);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;color:var(--ink-hi);font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0}
button,input{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;
}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.tnum{font-variant-numeric:tabular-nums}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--bg-base);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.brand-row{
  display:flex;align-items:center;gap:24px;
  min-height:76px;
}
.brand-logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(140deg,var(--brand),#8FD01F);
  color:var(--brand-ink);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:19px;letter-spacing:-.02em;
}
.logo-text{display:flex;flex-direction:column;line-height:1.12}
.logo-line1{font-size:15px;font-weight:800;color:var(--ink-hi);letter-spacing:.01em}
.logo-line2{font-size:12.5px;font-weight:600;color:var(--brand);letter-spacing:.02em}
.brand-search{
  flex:1;max-width:420px;margin-left:auto;
  display:flex;align-items:center;gap:8px;
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:0 6px 0 16px;height:44px;
  transition:border-color .2s ease;
}
.brand-search:focus-within{border-color:var(--brand)}
.brand-search input{
  flex:1;background:transparent;border:0;outline:none;
  font-size:14px;color:var(--ink-hi);min-width:0;
}
.brand-search input::placeholder{color:var(--ink-low)}
.search-btn{
  border-radius:var(--r-pill);padding:8px 18px;
  background:var(--brand);color:var(--brand-ink);
  font-size:13px;font-weight:700;
  transition:filter .2s ease,transform .2s ease;
}
.search-btn:hover{filter:brightness(.92);transform:translateY(-1px)}
.brand-actions{display:flex;align-items:center;gap:18px;flex-shrink:0}
.text-link{
  font-size:14px;font-weight:600;color:var(--ink-mid);
  display:inline-flex;align-items:center;gap:6px;
  transition:color .2s ease;
}
.text-link:hover{color:var(--brand)}
.text-link .arrow{transition:transform .2s ease}
.text-link:hover .arrow{transform:translateX(4px)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);padding:12px 24px;
  font-size:14px;font-weight:700;white-space:nowrap;
  transition:filter .2s ease,transform .2s ease,border-color .2s ease,color .2s ease,background .2s ease;
}
.btn-primary{background:var(--brand);color:var(--brand-ink);box-shadow:var(--sh-1)}
.btn-primary:hover{filter:brightness(.92);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border:1px solid var(--line-strong);color:var(--ink-hi)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-ink{background:var(--brand-ink);color:var(--brand)}
.btn-ink:hover{filter:brightness(1.35)}
.drawer-toggle{
  display:none;margin-left:auto;
  border:1px solid var(--line-strong);border-radius:var(--r-pill);
  padding:9px 18px;font-size:13px;font-weight:600;color:var(--ink-hi);
}
.channel-row{border-top:1px solid var(--line)}
.channel-inner{
  display:flex;align-items:stretch;gap:0;
  height:48px;overflow-x:auto;scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  display:inline-flex;align-items:center;
  padding:0 20px;font-size:14px;font-weight:600;color:var(--ink-mid);
  border-right:1px solid var(--line);
  position:relative;white-space:nowrap;
  transition:color .2s ease;
}
.channel-link:first-child{padding-left:0;border-left:0}
.channel-link:hover{color:var(--ink-hi)}
.channel-link.is-active{color:var(--brand)}
.channel-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
  background:var(--brand);border-radius:2px;
}
.channel-link:first-child.is-active::after{left:0}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,10,8,.72);
  z-index:80;opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(320px,86vw);
  background:var(--bg-elev);border-left:1px solid var(--line);
  z-index:90;transform:translateX(102%);
  transition:transform .3s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:22px 22px 28px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-title{font-size:15px;font-weight:700;color:var(--ink-hi)}
.drawer-close{
  border:1px solid var(--line-strong);border-radius:var(--r-pill);
  padding:6px 14px;font-size:13px;color:var(--ink-mid);
}
.drawer-close:hover{color:var(--brand);border-color:var(--brand)}
.drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.drawer-link{
  height:52px;display:flex;align-items:center;
  border-bottom:1px solid var(--line);
  font-size:14.5px;font-weight:600;color:var(--ink-mid);
}
.drawer-link:hover,.drawer-link.is-active{color:var(--brand)}
.drawer-foot{margin-top:auto;padding-top:20px}

/* ---------- article layout ---------- */
.breadcrumb-wrap{border-bottom:1px solid var(--line)}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  padding-top:16px;padding-bottom:16px;
  font-size:12px;color:var(--ink-low);
}
.breadcrumb a{color:var(--ink-low);transition:color .2s ease}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--ink-low);opacity:.6}
.breadcrumb .current{
  color:var(--ink-mid);max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-shell{padding:48px 0 96px}
.article-head{max-width:760px;margin:0 auto}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid rgba(199,242,74,.5);color:var(--brand);
  border-radius:var(--r-pill);padding:5px 14px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.pill .dot{width:6px;height:6px;border-radius:50%;background:var(--brand)}
.article-head h1{
  margin:18px 0 0;
  font-size:clamp(1.75rem,3.4vw,2.75rem);
  line-height:1.25;font-weight:700;letter-spacing:-.02em;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  margin-top:16px;font-size:13px;color:var(--ink-low);
}
.article-meta .sep{opacity:.55}
.article-meta .src{color:var(--ink-mid)}
.article-cover{
  max-width:960px;margin:24px auto 0;
  border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--bg-card);
  box-shadow:var(--sh-2);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}
.article-grid{
  max-width:1080px;margin:44px auto 0;
  display:grid;grid-template-columns:minmax(0,760px) 220px;
  gap:44px;justify-content:center;align-items:start;
}
.article-body{
  font-size:17px;line-height:1.85;color:var(--ink-mid);
  min-width:0;word-wrap:break-word;
}
.article-body > * + *{margin-top:1.25em}
.article-body h2{
  font-size:1.5rem;line-height:1.4;margin-top:2em;
  padding-left:14px;border-left:4px solid var(--brand);
  color:var(--ink-hi);
}
.article-body h3{font-size:1.15rem;line-height:1.5;margin-top:1.7em;color:var(--ink-hi)}
.article-body p{color:var(--ink-mid)}
.article-body strong{color:var(--ink-hi)}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body ul,.article-body ol{padding-left:1.35em}
.article-body li{margin:.45em 0;list-style-position:outside}
.article-body ul li{list-style:none;position:relative;padding-left:18px}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:7px;height:7px;border-radius:2px;background:var(--brand);
}
.article-body ol{counter-reset:li}
.article-body ol li{list-style:none;counter-increment:li;position:relative;padding-left:26px}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:.28em;
  color:var(--brand);font-weight:700;font-size:.85em;font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin-left:0;margin-right:0;
  border-left:3px solid var(--brand);border-radius:0 var(--r-md) var(--r-md) 0;
  background:rgba(232,255,240,.045);
  padding:16px 22px;color:var(--ink-hi);
}
.article-body img{border-radius:var(--r-md);width:100%;height:auto;margin-top:1.4em}
.article-body figure{margin:1.6em 0 0}
.article-body figcaption{font-size:13px;color:var(--ink-low);margin-top:8px;text-align:center}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
.article-body table{width:100%;border-collapse:collapse;font-size:15px}
.article-body th,.article-body td{
  border:1px solid var(--line);padding:10px 14px;text-align:left;
}
.article-body th{background:var(--bg-elev);color:var(--ink-hi)}
.article-toc{
  position:sticky;top:104px;
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:var(--bg-elev);padding:18px 18px 20px;
}
.toc-title{
  font-size:12px;font-weight:700;color:var(--brand);
  letter-spacing:.06em;margin-bottom:12px;
}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;font-size:13px;line-height:1.6;color:var(--ink-mid);
  padding:6px 10px;border-left:2px solid transparent;border-radius:0 var(--r-sm) var(--r-sm) 0;
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.toc-list a:hover{color:var(--ink-hi);background:rgba(232,255,240,.04)}
.toc-list a.is-current{color:var(--brand);border-left-color:var(--brand);background:rgba(199,242,74,.06)}
.toc-list a.depth-3{padding-left:22px;font-size:12.5px;color:var(--ink-low)}

/* empty state */
.not-found{
  max-width:760px;margin:0 auto;text-align:center;
  border:1px dashed var(--line-strong);border-radius:var(--r-lg);
  background:var(--bg-elev);padding:56px 28px;
}
.not-found h2{font-size:1.3rem;margin-bottom:10px}
.not-found p{font-size:14px;color:var(--ink-mid);margin-bottom:22px}

/* footer of article */
.article-foot{max-width:1080px;margin:64px auto 0}
.tag-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  padding-top:28px;border-top:1px solid var(--line);
}
.tag-row .label{font-size:12px;color:var(--ink-low);letter-spacing:.06em}
.badge{
  display:inline-flex;align-items:center;
  border:1px solid var(--line-strong);border-radius:var(--r-pill);
  padding:4px 12px;font-size:12px;color:var(--ink-mid);
  transition:color .2s ease,border-color .2s ease;
}
.badge:hover{color:var(--ink-hi);border-color:var(--line-strong)}
.badge-brand{border-color:rgba(199,242,74,.5);color:var(--brand)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:22px;
}
.section-head h2{
  font-size:clamp(1.25rem,2vw,1.6rem);line-height:1.25;
  display:flex;align-items:center;gap:12px;
}
.section-head h2::before{
  content:"";width:4px;height:22px;border-radius:2px;background:var(--brand);
}
.related-block{margin-top:56px}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.rel-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rel-card:hover{transform:translateY(-6px);border-color:rgba(199,242,74,.55);box-shadow:var(--sh-brand)}
.rel-cover{position:relative;overflow:hidden;background:var(--bg-elev)}
.rel-cover img{width:100%;aspect-ratio:2/3;object-fit:cover;transition:transform .35s ease}
.rel-card:hover .rel-cover img{transform:scale(1.05)}
.rel-body{padding:14px 16px 18px}
.rel-body h3{
  font-size:1.03rem;line-height:1.5;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-card:hover .rel-body h3{color:var(--brand)}
.rel-meta{display:block;margin-top:8px;font-size:12px;color:var(--ink-low)}
.pager{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:40px;
}
.pager a{
  display:block;border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--bg-elev);padding:18px 20px;
  transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.pager a:hover{border-color:rgba(199,242,74,.5);transform:translateY(-4px)}
.pager .pager-label{font-size:12px;color:var(--ink-low);letter-spacing:.06em}
.pager .pager-title{
  display:block;margin-top:8px;font-size:14.5px;font-weight:600;color:var(--ink-hi);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.pager .pager-next{text-align:right}
.back-line{margin-top:32px;text-align:center}

/* ---------- footer ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-elev);
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
}
.footer-logo{display:flex;flex-direction:column;line-height:1.15;margin-bottom:14px}
.footer-logo .logo-line1{font-size:16px;font-weight:800;color:var(--ink-hi)}
.footer-logo .logo-line2{font-size:13px;font-weight:600;color:var(--brand)}
.footer-about{font-size:13.5px;color:var(--ink-mid);max-width:34ch;line-height:1.75}
.footer-keys{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-col h4{
  font-size:.85rem;color:var(--brand);font-weight:700;
  letter-spacing:.04em;margin-bottom:14px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:.9rem;color:var(--ink-mid);line-height:1.6}
.footer-col a{color:var(--ink-mid);transition:color .2s ease}
.footer-col a:hover{color:var(--ink-hi)}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid var(--line);
  text-align:center;
}
.footer-bottom p{font-size:12px;color:var(--ink-low);line-height:1.9}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 28px}
  .article-grid{max-width:860px}
}
@media (max-width:1023px){
  .brand-search{max-width:280px}
  .article-grid{grid-template-columns:minmax(0,1fr);max-width:760px;gap:0}
  .article-toc{display:none}
  .rel-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--pad-section:56px}
  .container{padding:0 20px}
  .brand-row{min-height:64px;gap:14px}
  .brand-search{display:none}
  .brand-actions .text-link{display:none}
  .brand-actions .btn-primary{display:none}
  .drawer-toggle{display:inline-flex}
  .channel-link{padding:0 15px;font-size:13.5px}
  .article-shell{padding:32px 0 64px}
  .article-grid{margin-top:32px}
  .article-body{font-size:16.5px}
  .article-body h2{font-size:1.32rem}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pager{grid-template-columns:1fr}
  .pager .pager-next{text-align:left}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:479px){
  .rel-grid{grid-template-columns:1fr}
  .article-cover{border-radius:var(--r-md)}
  .breadcrumb .current{max-width:100%;white-space:normal}
}

/* roulang page: category1 */
:root{
  --bg-base:#071310;
  --bg-elev:#0E1E19;
  --bg-card:#13281F;
  --line:rgba(232,255,240,.09);
  --line-strong:rgba(232,255,240,.18);
  --ink-hi:#F1F7F2;
  --ink-mid:#A8B8AF;
  --ink-low:#67786F;
  --brand:#C7F24A;
  --brand-ink:#0B1408;
  --hot:#FF6A2B;
  --live:#FF4757;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(0,0,0,.35);
  --sh-2:0 14px 34px rgba(0,0,0,.48);
  --sh-brand:0 0 0 1px rgba(199,242,74,.55), 0 10px 28px rgba(199,242,74,.18);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--ink-mid);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:.95rem;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;background:var(--bg-card);border:1px solid var(--line);}
a{color:inherit;text-decoration:none;transition:color .25s ease,border-color .25s ease,background-color .25s ease;}
a:hover{color:var(--ink-hi);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink-hi);font-weight:700;line-height:1.25;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.num{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 20px;}
@media(min-width:1024px){.container{padding:0 32px;}}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:var(--bg-base);border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.brand-row{border-bottom:1px solid var(--line);}
.brand-inner{display:flex;align-items:center;gap:20px;min-height:64px;}
@media(min-width:1024px){.brand-inner{min-height:76px;gap:28px;}}
.logo{display:flex;flex-direction:column;justify-content:center;line-height:1.1;flex-shrink:0;}
.logo-line1{font-size:1.15rem;font-weight:800;letter-spacing:.02em;color:var(--brand);}
.logo-line2{font-size:.72rem;font-weight:700;letter-spacing:.22em;color:var(--ink-hi);}
@media(min-width:1024px){
  .logo-line1{font-size:1.32rem;}
  .logo-line2{font-size:.78rem;}
}
.search-box{flex:1;max-width:420px;display:none;}
.search-box input{
  width:100%;height:44px;border-radius:var(--r-pill);
  background:var(--bg-card);border:1px solid var(--line);
  padding:0 20px;color:var(--ink-hi);font-size:.9rem;
}
.search-box input::placeholder{color:var(--ink-low);}
.search-box input:focus{border-color:var(--brand);outline:none;}
@media(min-width:900px){.search-box{display:block;}}
.brand-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:.88rem;color:var(--ink-mid);}
.link-arrow .arw{transition:transform .25s ease;}
.link-arrow:hover{color:var(--brand);}
.link-arrow:hover .arw{transform:translateX(4px);}
@media(max-width:899px){.link-arrow{display:none;}}
.menu-toggle{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border:1px solid var(--line-strong);border-radius:var(--r-pill);color:var(--ink-hi);font-size:1.1rem;}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand);}
@media(min-width:1024px){.menu-toggle{display:none;}}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-pill);padding:12px 24px;font-size:.9rem;font-weight:600;transition:all .25s ease;white-space:nowrap;}
.btn-primary{background:var(--brand);color:var(--brand-ink);}
.btn-primary:hover{filter:brightness(.92);transform:translateY(-1px);color:var(--brand-ink);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{border:1px solid var(--line-strong);color:var(--ink-hi);background:transparent;}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.btn-dark{background:var(--brand-ink);color:var(--brand);}
.btn-dark:hover{filter:brightness(1.35);color:var(--brand);}
.btn-sm{padding:9px 18px;font-size:.84rem;}

.channel-row{border-bottom:1px solid var(--line);background:var(--bg-base);}
.channel-inner{display:flex;align-items:center;overflow-x:auto;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{position:relative;display:inline-flex;align-items:center;height:48px;padding:0 16px;font-size:.88rem;color:var(--ink-mid);border-left:1px solid var(--line);white-space:nowrap;}
.channel-link:first-child{border-left:0;}
.channel-link:hover{color:var(--ink-hi);}
.channel-link.is-active{color:var(--brand);}
.channel-link.is-active::after{content:"";position:absolute;left:16px;right:16px;bottom:0;height:2px;background:var(--brand);}
@media(min-width:1024px){.channel-link{padding:0 22px;font-size:.92rem;}}

/* 移动抽屉 */
.drawer{position:fixed;inset:0 0 0 auto;width:min(320px,86vw);background:var(--bg-elev);border-left:1px solid var(--line-strong);transform:translateX(100%);transition:transform .3s ease;z-index:80;display:flex;flex-direction:column;padding:20px;box-shadow:var(--sh-2);}
.drawer.is-open{transform:translateX(0);}
.drawer-close{align-self:flex-end;width:40px;height:40px;border:1px solid var(--line-strong);border-radius:var(--r-pill);color:var(--ink-hi);font-size:1.1rem;}
.drawer-close:hover{border-color:var(--brand);color:var(--brand);}
.drawer-list{margin-top:18px;display:flex;flex-direction:column;}
.drawer-list a{display:flex;align-items:center;min-height:52px;border-bottom:1px solid var(--line);font-size:.95rem;color:var(--ink-mid);}
.drawer-list a.is-active{color:var(--brand);}
.drawer-list a:hover{color:var(--ink-hi);}
.drawer-foot{margin-top:auto;padding-top:20px;}
.overlay{position:fixed;inset:0;background:rgba(4,10,8,.72);opacity:0;visibility:hidden;transition:opacity .3s ease;z-index:70;}
.overlay.is-open{opacity:1;visibility:visible;}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;
  min-height:220px;
  display:flex;
  align-items:flex-end;
  background-image:linear-gradient(180deg,rgba(7,19,16,.55) 0%,rgba(7,19,16,.86) 55%,#071310 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
@media(min-width:1024px){.cat-hero{min-height:320px;}}
.cat-hero-inner{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:28px;width:100%;padding:44px 0 36px;}
@media(min-width:1024px){.cat-hero-inner{padding:64px 0 48px;}}
.crumb{display:flex;align-items:center;gap:8px;font-size:.75rem;color:var(--ink-low);margin-bottom:14px;}
.crumb a:hover{color:var(--brand);}
.crumb .sep{opacity:.6;}
.cat-hero h1{font-size:clamp(2rem,4.4vw,3.2rem);font-weight:800;line-height:1.1;letter-spacing:-.03em;max-width:660px;}
.cat-hero h1 span{display:block;font-size:.42em;font-weight:600;letter-spacing:.02em;color:var(--brand);margin-top:12px;}
.cat-hero p.lead{margin-top:14px;max-width:620px;font-size:.95rem;color:var(--ink-mid);}
.hero-stats{display:flex;gap:26px;flex-wrap:wrap;padding:18px 22px;border:1px solid var(--line);border-radius:var(--r-lg);background:rgba(14,30,25,.72);}
.hero-stat span.lbl{display:block;font-size:.75rem;letter-spacing:.04em;color:var(--ink-low);}
.hero-stat span.val{display:block;font-size:1.6rem;font-weight:800;color:var(--brand);line-height:1.3;}

/* ============ 通用板块 ============ */
.section{padding:56px 0;border-bottom:1px solid var(--line);}
@media(min-width:1024px){.section{padding:96px 0;}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(1.4rem,2.4vw,2rem);font-weight:700;}
.section-head .sub{margin-top:8px;font-size:.88rem;color:var(--ink-low);max-width:640px;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.75rem;letter-spacing:.06em;color:var(--brand);margin-bottom:10px;}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);}

.badge{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line-strong);border-radius:var(--r-pill);padding:4px 12px;font-size:.75rem;color:var(--ink-mid);line-height:1.6;}
.badge-brand{border-color:rgba(199,242,74,.6);color:var(--brand);}
.badge-hot{border-color:rgba(255,106,43,.6);color:var(--hot);}
.tag-time{border-color:var(--line);color:var(--ink-low);}

/* 板块一：左侧大卡 + 右侧序号列表 */
.split-7-5{display:grid;grid-template-columns:1fr;gap:28px;}
@media(min-width:1024px){.split-7-5{grid-template-columns:7fr 5fr;gap:36px;}}
.feature-card{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg-card);box-shadow:var(--sh-1);overflow:hidden;transition:all .25s ease;display:block;}
.feature-card:hover{border-color:var(--brand);box-shadow:var(--sh-brand);transform:translateY(-6px);}
.feature-card .cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-card);}
.feature-card .cover img{width:100%;height:100%;object-fit:cover;border:0;border-radius:0;transition:transform .35s ease;}
.feature-card:hover .cover img{transform:scale(1.05);}
.feature-card .cover .live-dot{position:absolute;top:14px;left:14px;display:inline-flex;align-items:center;gap:7px;padding:5px 12px;border-radius:var(--r-pill);background:rgba(7,19,16,.82);font-size:.75rem;color:var(--ink-hi);}
.feature-card .cover .live-dot i{width:7px;height:7px;border-radius:50%;background:var(--live);display:block;}
.feature-card .body{padding:22px;}
@media(min-width:1024px){.feature-card .body{padding:28px;}}
.feature-card h3{font-size:1.22rem;line-height:1.5;}
.feature-card p{margin-top:12px;font-size:.9rem;color:var(--ink-mid);}
.feature-card .meta{margin-top:16px;display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:.78rem;color:var(--ink-low);}

.rank-list{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg-elev);padding:10px;box-shadow:var(--sh-1);}
.rank-list li{border-bottom:1px solid var(--line);}
.rank-list li:last-child{border-bottom:0;}
.rank-item{display:flex;gap:14px;align-items:flex-start;padding:16px 12px;border-radius:var(--r-md);transition:background-color .25s ease;}
.rank-item:hover{background:var(--bg-card);}
.rank-no{flex-shrink:0;width:30px;font-size:1rem;font-weight:800;color:transparent;-webkit-text-stroke:1px var(--brand);font-variant-numeric:tabular-nums;}
.rank-item h3{font-size:.98rem;font-weight:600;line-height:1.5;}
.rank-item .info{margin-top:6px;font-size:.75rem;color:var(--ink-low);display:flex;flex-wrap:wrap;gap:10px;}
.rank-item:hover h3{color:var(--brand);}

/* 板块二：非对称网格 */
.asym{display:grid;grid-template-columns:1fr;gap:24px;}
@media(min-width:768px){.asym{grid-template-columns:1.35fr 1fr;grid-auto-rows:1fr;}}
.asym .big{grid-row:auto;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--bg-card);box-shadow:var(--sh-1);transition:all .25s ease;display:flex;flex-direction:column;}
@media(min-width:768px){.asym .big{grid-row:span 2;}}
.asym .big:hover{border-color:var(--brand);box-shadow:var(--sh-brand);transform:translateY(-6px);}
.asym .big .cover{aspect-ratio:16/9;overflow:hidden;}
.asym .big .cover img{width:100%;height:100%;object-fit:cover;border:0;border-radius:0;transition:transform .35s ease;}
.asym .big:hover .cover img{transform:scale(1.05);}
.asym .big .body{padding:24px;flex:1;display:flex;flex-direction:column;}
.asym .big h3{font-size:1.12rem;}
.asym .big p{margin-top:12px;font-size:.9rem;color:var(--ink-mid);}
.asym .small{border:1px solid var(--line);border-radius:var(--r-lg);background:var(--bg-card);overflow:hidden;display:flex;gap:16px;padding:16px;box-shadow:var(--sh-1);transition:all .25s ease;}
.asym .small:hover{border-color:var(--brand);box-shadow:var(--sh-brand);transform:translateY(-6px);}
.asym .small img{width:110px;height:82px;object-fit:cover;border-radius:var(--r-md);flex-shrink:0;}
.asym .small h3{font-size:.98rem;}
.asym .small p{margin-top:8px;font-size:.82rem;color:var(--ink-low);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* 板块三：流程 */
.steps{display:grid;grid-template-columns:1fr;gap:20px;}
@media(min-width:768px){.steps{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);gap:24px;}}
.step{position:relative;padding:26px 22px;border:1px solid var(--line);border-left:4px solid var(--brand);border-radius:var(--r-md);background:var(--bg-elev);transition:all .25s ease;}
.step:hover{background:var(--bg-card);transform:translateY(-6px);box-shadow:var(--sh-2);}
.step .idx{font-size:.78rem;font-weight:700;letter-spacing:.12em;color:var(--brand);font-variant-numeric:tabular-nums;}
.step h3{margin-top:12px;font-size:1rem;}
.step p{margin-top:10px;font-size:.86rem;color:var(--ink-mid);}

/* 板块四：数据速览 */
.stats-row{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;}
@media(min-width:768px){.stats-row{grid-template-columns:repeat(4,1fr);}}
.stat-cell{background:var(--bg-elev);padding:26px 22px;transition:background-color .25s ease;}
.stat-cell:hover{background:var(--bg-card);}
.stat-cell .val{font-size:1.9rem;font-weight:800;color:var(--brand);line-height:1.2;font-variant-numeric:tabular-nums;}
.stat-cell .val em{font-style:normal;font-size:.85rem;color:var(--ink-mid);margin-left:6px;font-weight:600;}
.stat-cell .lbl{margin-top:10px;font-size:.85rem;color:var(--ink-mid);}
.stat-cell .note{margin-top:6px;font-size:.75rem;color:var(--ink-low);}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:10px;max-width:900px;}
.faq-item{border:1px solid var(--line);border-left:1px solid var(--line);border-radius:var(--r-md);background:var(--bg-elev);transition:border-color .25s ease,background-color .25s ease;}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:64px;padding:16px 20px;cursor:pointer;list-style:none;font-size:.98rem;font-weight:600;color:var(--ink-hi);}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";flex-shrink:0;font-size:1.35rem;font-weight:600;color:var(--brand);line-height:1;transition:transform .2s ease;}
.faq-item[open]{border-color:var(--line-strong);border-left:3px solid var(--brand);background:var(--bg-card);}
.faq-item[open] summary::after{content:"×";}
.faq-item .answer{padding:0 20px 20px;font-size:.9rem;color:var(--ink-mid);}
.faq-item:hover{border-color:var(--line-strong);}

/* CTA */
.cta-panel{background:var(--brand);border-radius:var(--r-xl);padding:32px;display:flex;flex-direction:column;gap:24px;border:0;}
@media(min-width:1024px){.cta-panel{flex-direction:row;align-items:center;justify-content:space-between;padding:56px;}}
.cta-panel h2{color:var(--brand-ink);font-size:clamp(1.4rem,2.4vw,2rem);}
.cta-panel p{margin-top:10px;color:rgba(11,20,8,.78);font-size:.92rem;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-panel .btn-dark{background:var(--brand-ink);color:var(--brand);}
.cta-panel .btn-outline-dark{border:1px solid rgba(11,20,8,.45);color:var(--brand-ink);border-radius:var(--r-pill);padding:12px 24px;font-size:.9rem;font-weight:600;display:inline-flex;align-items:center;transition:all .25s ease;}
.cta-panel .btn-outline-dark:hover{background:rgba(11,20,8,.12);color:var(--brand-ink);}

/* 页脚 */
.site-footer{border-top:1px solid var(--line);background:var(--bg-base);padding:56px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}}
.footer-logo{display:flex;flex-direction:column;line-height:1.15;}
.footer-logo .logo-line1{font-size:1.15rem;font-weight:800;color:var(--brand);}
.footer-logo .logo-line2{font-size:.72rem;font-weight:700;letter-spacing:.22em;color:var(--ink-hi);}
.footer-about{margin-top:16px;font-size:.86rem;color:var(--ink-mid);max-width:320px;}
.footer-keys{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px;}
.footer-col h4{font-size:.85rem;color:var(--brand);font-weight:600;letter-spacing:.04em;}
.footer-col ul{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.footer-col li{font-size:.9rem;color:var(--ink-mid);}
.footer-col a{font-size:.9rem;color:var(--ink-mid);}
.footer-col a:hover{color:var(--ink-hi);}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid var(--line);text-align:center;}
.footer-bottom p{font-size:.75rem;color:var(--ink-low);line-height:1.9;}

/* roulang page: category2 */
:root{
  --bg-base:#071310;
  --bg-elev:#0E1E19;
  --bg-card:#13281F;
  --line:rgba(232,255,240,.09);
  --line-strong:rgba(232,255,240,.18);
  --ink-hi:#F1F7F2;
  --ink-mid:#A8B8AF;
  --ink-low:#67786F;
  --brand:#C7F24A;
  --brand-ink:#0B1408;
  --hot:#FF6A2B;
  --live:#FF4757;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(0,0,0,.35);
  --sh-2:0 14px 34px rgba(0,0,0,.48);
  --sh-brand:0 0 0 1px rgba(199,242,74,.55),0 10px 28px rgba(199,242,74,.18);
  --max:1280px;
  --font:PingFang SC,HarmonyOS Sans SC,Source Han Sans SC,Microsoft YaHei,system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg-base);
  color:var(--ink-mid);
  font-family:var(--font);
  font-size:.95rem;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
input{font:inherit}
ul,ol{list-style:none}
h1,h2,h3,h4{color:var(--ink-hi);line-height:1.3}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.num{font-variant-numeric:tabular-nums}

.container{width:100%;max-width:var(--max);margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:1024px){.container{padding-left:32px;padding-right:32px}}

/* ---------- HEADER ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--bg-base);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.brand-row{display:flex;align-items:center;gap:18px;height:64px}
@media(min-width:1024px){.brand-row{height:76px}}
.logo{display:flex;flex-direction:column;line-height:1.06;font-weight:800;white-space:nowrap}
.logo-line1{font-size:1.06rem;color:var(--ink-hi);letter-spacing:-.01em}
.logo-line2{font-size:.7rem;color:var(--brand);letter-spacing:.08em}
.search-box{display:none;position:relative;flex:1;max-width:400px}
@media(min-width:1024px){.search-box{display:flex}}
.search-box input{
  width:100%;height:44px;padding:0 110px 0 18px;
  border-radius:var(--r-pill);
  background:var(--bg-card);
  border:1px solid var(--line);
  color:var(--ink-hi);
  transition:border-color .2s ease;
}
.search-box input::placeholder{color:var(--ink-low)}
.search-box input:focus{outline:none;border-color:var(--brand)}
.search-box button{
  position:absolute;right:5px;top:5px;height:34px;padding:0 18px;
  border-radius:var(--r-pill);
  background:var(--brand);color:var(--brand-ink);
  font-size:.82rem;font-weight:700;
  transition:filter .2s ease,transform .2s ease;
}
.search-box button:hover{filter:brightness(.92)}
.search-box button:active{transform:translateY(1px)}
.top-actions{margin-left:auto;display:flex;align-items:center;gap:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:.86rem;color:var(--ink-mid);font-weight:500}
.link-arrow .arrow{display:inline-block;transition:transform .2s ease}
.link-arrow:hover{color:var(--brand)}
.link-arrow:hover .arrow{transform:translateX(4px)}
.hide-sm{display:none}
@media(min-width:768px){.hide-sm{display:inline-flex}}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  gap:8px;padding:12px 24px;border-radius:var(--r-pill);
  font-size:.88rem;font-weight:700;white-space:nowrap;
  transition:transform .2s ease,filter .2s ease,border-color .2s ease,color .2s ease,background .2s ease;
}
.btn-primary{background:var(--brand);color:var(--brand-ink)}
.btn-primary:hover{filter:brightness(.92);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border:1px solid var(--line-strong);color:var(--ink-hi)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-dark{background:var(--brand-ink);color:var(--brand)}
.btn-dark:hover{filter:brightness(1.25);transform:translateY(-1px)}
.btn-outline-dark{border:1px solid rgba(11,20,8,.4);color:var(--brand-ink)}
.btn-outline-dark:hover{background:rgba(11,20,8,.08)}
.btn-sm{padding:9px 18px;font-size:.82rem}

.drawer-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:var(--r-md);
  border:1px solid var(--line-strong);color:var(--ink-hi);
}
.drawer-toggle:hover{border-color:var(--brand);color:var(--brand)}
@media(min-width:1024px){.drawer-toggle{display:none}}

.channel-row{background:var(--bg-elev);border-top:1px solid var(--line)}
.channel-inner{
  display:flex;align-items:center;height:48px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;display:inline-flex;align-items:center;
  height:48px;padding:0 18px;
  font-size:.88rem;color:var(--ink-mid);white-space:nowrap;
  border-right:1px solid var(--line);
  transition:color .2s ease;
}
.channel-link:first-child{padding-left:0}
.channel-link:hover{color:var(--ink-hi)}
.channel-link.is-active{color:var(--brand)}
.channel-link.is-active::after{
  content:"";position:absolute;left:18px;right:18px;bottom:0;
  height:2px;background:var(--brand);
}
.channel-link:first-child.is-active::after{left:0}

/* ---------- DRAWER ---------- */
.drawer{position:fixed;inset:0;z-index:90;display:none;background:rgba(7,19,16,.66)}
.drawer.is-open{display:block}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:290px;max-width:88vw;
  background:var(--bg-elev);border-left:1px solid var(--line);
  padding:20px;overflow-y:auto;
  transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;gap:8px;
}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-head span{font-weight:800;color:var(--ink-hi)}
.drawer-close{width:36px;height:36px;border-radius:var(--r-md);border:1px solid var(--line-strong);color:var(--ink-hi)}
.drawer-panel a.drawer-link{
  display:flex;align-items:center;height:52px;padding:0 14px;
  border-radius:var(--r-md);color:var(--ink-mid);
  border:1px solid transparent;
}
.drawer-panel a.drawer-link:hover{background:var(--bg-card);color:var(--ink-hi)}
.drawer-panel a.drawer-link.is-active{color:var(--brand);border-color:rgba(199,242,74,.4);background:rgba(199,242,74,.06)}
.drawer-panel .btn{margin-top:14px}

/* ---------- HERO ---------- */
.page-hero{
  position:relative;isolation:isolate;overflow:hidden;
  min-height:220px;display:flex;align-items:flex-end;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
@media(min-width:1024px){.page-hero{min-height:330px}}
.page-hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(7,19,16,.3) 0%,rgba(7,19,16,.85) 58%,#071310 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(90deg,rgba(7,19,16,.92) 0%,rgba(7,19,16,.6) 46%,rgba(7,19,16,0) 78%);
}
.hero-inner{
  display:flex;flex-wrap:wrap;gap:26px;align-items:flex-end;justify-content:space-between;
  padding-top:52px;padding-bottom:30px;width:100%;
}
.hero-copy{max-width:640px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.72rem;color:var(--ink-low);margin-bottom:14px}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span.sep{color:var(--ink-low);opacity:.6}
.hero-title{
  font-size:clamp(1.9rem,3.8vw,2.9rem);
  font-weight:800;line-height:1.12;letter-spacing:-.02em;
  color:var(--ink-hi);margin-bottom:12px;
}
.hero-desc{font-size:.92rem;color:var(--ink-mid);max-width:560px}
.hero-stats{
  display:flex;flex-wrap:wrap;
  border:1px solid var(--line-strong);border-radius:var(--r-lg);
  background:rgba(19,40,31,.58);overflow:hidden;
}
.stat{display:flex;flex-direction:column;gap:2px;padding:14px 22px;border-right:1px solid var(--line);min-width:104px}
.stat:last-child{border-right:none}
.stat-num{font-size:1.5rem;font-weight:800;color:var(--brand);line-height:1.1}
.stat-label{font-size:.72rem;color:var(--ink-low);letter-spacing:.04em}

/* ---------- SECTION BASE ---------- */
.section{padding:56px 0;border-top:1px solid var(--line)}
@media(min-width:1024px){.section{padding:88px 0}}
.section-head{
  display:flex;flex-wrap:wrap;gap:14px;
  align-items:flex-end;justify-content:space-between;
  margin-bottom:28px;
}
.eyebrow{
  display:inline-block;margin-bottom:8px;
  font-size:.7rem;font-weight:700;letter-spacing:.16em;
  color:var(--brand);text-transform:uppercase;
}
.section-title{font-size:clamp(1.4rem,2.4vw,2rem);font-weight:700;line-height:1.2}
.section-sub{margin-top:8px;font-size:.88rem;color:var(--ink-low);max-width:620px}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  font-size:.72rem;color:var(--ink-mid);white-space:nowrap;
}
.badge-brand{border-color:rgba(199,242,74,.5);color:var(--brand)}
.badge-hot{border-color:rgba(255,106,43,.5);color:var(--hot)}
.badge-dot::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--brand);display:inline-block;
}
.badge-live::before{background:var(--live)}

/* ---------- MOSAIC GRID (版式 02) ---------- */
.mosaic{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:20px;
  grid-auto-flow:dense;
}
.m-card{
  display:flex;flex-direction:column;
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.m-card:hover{transform:translateY(-6px);border-color:rgba(199,242,74,.55);box-shadow:var(--sh-2)}
.m-high{grid-column:span 3;grid-row:span 2}
.m-wide{grid-column:span 3}
.m-third{grid-column:span 2}
.m-media{
  display:block;overflow:hidden;
  background:var(--bg-elev);
  border-bottom:1px solid var(--line);
}
.m-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.m-card:hover .m-media img{transform:scale(1.05)}
.m-high .m-media{aspect-ratio:4/5}
.m-wide .m-media,.m-third .m-media{aspect-ratio:16/9}
.m-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.m-title{font-size:1.06rem;font-weight:600;line-height:1.5}
.m-title a:hover{color:var(--brand)}
.m-desc{font-size:.86rem;color:var(--ink-mid);line-height:1.75}
.m-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:auto;font-size:.75rem;color:var(--ink-low)}
.m-meta .dot{opacity:.5}

@media(min-width:768px) and (max-width:1023px){
  .mosaic{grid-template-columns:repeat(2,1fr)}
  .m-high,.m-wide,.m-third{grid-column:auto;grid-row:auto}
}
@media(max-width:767px){
  .mosaic{grid-template-columns:1fr}
  .m-high,.m-wide,.m-third{grid-column:1 / -1;grid-row:auto}
}

/* ---------- STEPS ---------- */
.steps{display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:768px){.steps{grid-template-columns:repeat(3,1fr)}}
.step{
  position:relative;padding:26px 24px;
  background:var(--bg-elev);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.step:hover{border-color:rgba(199,242,74,.5);transform:translateY(-6px);box-shadow:var(--sh-2)}
.step-num{
  display:inline-block;margin-bottom:14px;
  font-size:1.4rem;font-weight:800;color:var(--brand);letter-spacing:.02em;
}
.step h3{font-size:1.02rem;font-weight:600;margin-bottom:8px}
.step p{font-size:.86rem;color:var(--ink-mid)}

/* ---------- DIGEST ---------- */
.digest{
  display:grid;gap:28px;grid-template-columns:1fr;
  background:var(--bg-elev);
  border:1px solid var(--line);
  border-radius:var(--r-xl);
  padding:28px;
}
@media(min-width:1024px){.digest{grid-template-columns:1.15fr .85fr;padding:44px;gap:44px}}
.digest h2{font-size:clamp(1.3rem,2.2vw,1.75rem);font-weight:700;margin-bottom:12px}
.digest p{font-size:.88rem;color:var(--ink-mid)}
.digest-list{margin-top:20px;display:grid;gap:12px}
.digest-list li{position:relative;padding-left:20px;font-size:.87rem;color:var(--ink-mid)}
.digest-list li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:8px;height:2px;background:var(--brand);border-radius:2px;
}
.digest-form{
  display:flex;flex-direction:column;gap:12px;
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:22px;
  align-self:start;
}
.form-label{font-size:.8rem;color:var(--ink-hi);font-weight:600}
.form-field input{
  width:100%;height:44px;padding:0 14px;
  border-radius:12px;
  background:var(--bg-base);
  border:1px solid var(--line);
  color:var(--ink-hi);
  transition:border-color .2s ease;
}
.form-field input::placeholder{color:var(--ink-low)}
.form-field input:focus{outline:none;border-color:var(--brand)}
.form-hint{font-size:.75rem;color:var(--ink-low);line-height:1.6}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:10px}
.faq-item{
  background:var(--bg-card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(199,242,74,.45);box-shadow:inset 3px 0 0 var(--brand)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:0 20px;
  cursor:pointer;list-style:none;
  color:var(--ink-hi);font-weight:600;font-size:.95rem;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";color:var(--brand);font-size:1.25rem;line-height:1;
  transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"×"}
.faq-item summary:hover{color:var(--brand)}
.faq-body{padding:0 20px 18px;font-size:.87rem;color:var(--ink-mid);line-height:1.8}

/* ---------- CTA ---------- */
.cta-panel{
  display:grid;gap:22px;align-items:center;
  background:var(--brand);
  border-radius:24px;
  padding:32px;
}
@media(min-width:1024px){.cta-panel{grid-template-columns:1.45fr auto;padding:56px}}
.cta-panel h2{color:var(--brand-ink);font-size:clamp(1.35rem,2.4vw,1.9rem);font-weight:800;line-height:1.2;margin-bottom:10px}
.cta-panel p{color:rgba(11,20,8,.74);font-size:.9rem;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- FOOTER ---------- */
.site-footer{
  border-top:1px solid var(--line);
  background:var(--bg-elev);
  padding:48px 0 26px;
}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.footer-logo{display:flex;flex-direction:column;line-height:1.1;font-weight:800;margin-bottom:14px}
.footer-logo .logo-line1{font-size:1.15rem;color:var(--ink-hi)}
.footer-logo .logo-line2{font-size:.76rem;color:var(--brand);letter-spacing:.08em}
.footer-about{font-size:.85rem;color:var(--ink-low);max-width:320px;line-height:1.75}
.footer-keys{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-col h4{font-size:.85rem;color:var(--brand);font-weight:700;margin-bottom:14px}
.footer-col li{font-size:.9rem;color:var(--ink-mid);margin-bottom:10px;line-height:1.6}
.footer-col a:hover{color:var(--ink-hi)}
.footer-bottom{
  margin-top:34px;padding-top:20px;
  border-top:1px solid var(--line);
  text-align:center;font-size:.75rem;color:var(--ink-low);
}
.footer-bottom p+p{margin-top:6px}

/* roulang page: category3 */
:root{
  --bg-base:#071310;
  --bg-elev:#0E1E19;
  --bg-card:#13281F;
  --line:rgba(232,255,240,.09);
  --line-strong:rgba(232,255,240,.18);
  --ink-hi:#F1F7F2;
  --ink-mid:#A8B8AF;
  --ink-low:#67786F;
  --brand:#C7F24A;
  --brand-ink:#0B1408;
  --hot:#FF6A2B;
  --live:#FF4757;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(0,0,0,.35);
  --sh-2:0 14px 34px rgba(0,0,0,.48);
  --sh-brand:0 0 0 1px rgba(199,242,74,.55), 0 10px 28px rgba(199,242,74,.18);
  --container:1280px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--ink-mid);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:.95rem;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;border-radius:var(--r-md);background:var(--bg-card);border:1px solid var(--line);}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink-hi);font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.tnum{font-variant-numeric:tabular-nums;}

.container{max-width:var(--container);margin:0 auto;padding:0 20px;}

/* ============ header ============ */
.site-header{position:sticky;top:0;z-index:60;background:var(--bg-base);border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.brand-row{display:flex;align-items:center;gap:20px;min-height:64px;padding-top:10px;padding-bottom:10px;}
.logo{display:flex;flex-direction:column;line-height:1.06;flex-shrink:0;}
.logo-line1{font-size:.72rem;font-weight:600;letter-spacing:.28em;color:var(--ink-low);text-transform:uppercase;}
.logo-line2{font-size:1.16rem;font-weight:800;color:var(--ink-hi);letter-spacing:-.02em;}
.logo:hover .logo-line2{color:var(--brand);}
.search-box{position:relative;flex:1 1 auto;max-width:420px;display:none;align-items:center;}
.search-box input{
  width:100%;height:44px;padding:0 96px 0 20px;
  border-radius:var(--r-pill);
  background:var(--bg-card);
  border:1px solid var(--line);
  color:var(--ink-hi);
  transition:border-color .2s ease,background-color .2s ease;
}
.search-box input::placeholder{color:var(--ink-low);}
.search-box input:focus{outline:none;border-color:var(--brand);background:var(--bg-elev);}
.search-btn{
  position:absolute;right:5px;top:5px;height:34px;padding:0 18px;
  border-radius:var(--r-pill);background:var(--brand);color:var(--brand-ink);
  font-size:.82rem;font-weight:700;
}
.search-btn:hover{filter:brightness(.92);}
.brand-actions{display:flex;align-items:center;gap:14px;margin-left:auto;}
.text-link{font-size:.86rem;font-weight:600;color:var(--ink-mid);}
.text-link:hover{color:var(--brand);}
.drawer-toggle{
  width:42px;height:42px;border-radius:var(--r-sm);
  border:1px solid var(--line-strong);color:var(--ink-hi);
  display:inline-flex;align-items:center;justify-content:center;font-size:1.1rem;
}
.drawer-toggle:hover{border-color:var(--brand);color:var(--brand);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 24px;border-radius:var(--r-pill);
  font-size:.86rem;font-weight:700;white-space:nowrap;
  transition:transform .2s ease,filter .2s ease,border-color .2s ease,color .2s ease,background-color .2s ease;
}
.btn-primary{background:var(--brand);color:var(--brand-ink);}
.btn-primary:hover{filter:brightness(.92);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{border:1px solid var(--line-strong);color:var(--ink-hi);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.btn-dark{background:var(--brand-ink);color:var(--brand);}
.btn-dark:hover{filter:brightness(1.35);transform:translateY(-1px);}
.btn-outline-lime{border:1px solid rgba(11,20,8,.45);color:var(--brand-ink);}
.btn-outline-lime:hover{background:rgba(11,20,8,.08);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:.84rem;font-weight:700;color:var(--brand);}
.link-arrow span{transition:transform .2s ease;}
.link-arrow:hover span{transform:translateX(4px);}

.channel-row{border-top:1px solid var(--line);background:var(--bg-elev);}
.channel-inner{display:flex;align-items:center;gap:0;overflow-x:auto;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;flex:0 0 auto;height:48px;display:inline-flex;align-items:center;
  padding:0 18px;font-size:.86rem;font-weight:600;color:var(--ink-mid);
  border-right:1px solid var(--line);
}
.channel-link:first-child{padding-left:0;}
.channel-link:hover{color:var(--ink-hi);}
.channel-link.is-active{color:var(--brand);}
.channel-link.is-active::after{
  content:"";position:absolute;left:18px;right:18px;bottom:0;height:2px;background:var(--brand);border-radius:2px;
}
.channel-link:first-child.is-active::after{left:0;}

/* ============ drawer ============ */
.drawer{
  position:fixed;top:0;right:0;height:100%;width:280px;max-width:86vw;
  background:var(--bg-elev);border-left:1px solid var(--line-strong);
  transform:translateX(100%);transition:transform .28s ease;z-index:90;
  display:flex;flex-direction:column;padding:24px 20px;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{width:38px;height:38px;border-radius:var(--r-sm);border:1px solid var(--line-strong);color:var(--ink-hi);}
.drawer-close:hover{border-color:var(--brand);color:var(--brand);}
.drawer a.drawer-link{display:flex;align-items:center;height:52px;font-size:.94rem;font-weight:600;color:var(--ink-mid);border-bottom:1px solid var(--line);}
.drawer a.drawer-link:hover,.drawer a.drawer-link.is-active{color:var(--brand);}
.drawer-foot{margin-top:auto;padding-top:20px;}
.drawer-mask{position:fixed;inset:0;background:rgba(3,8,6,.68);opacity:0;visibility:hidden;transition:opacity .28s ease;z-index:80;}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ============ hero ============ */
.cat-hero{
  position:relative;overflow:hidden;
  min-height:220px;
  display:flex;align-items:flex-end;
  background-image:linear-gradient(90deg,rgba(7,19,16,.95) 0%,rgba(7,19,16,.72) 48%,rgba(7,19,16,.42) 100%),
    linear-gradient(0deg,rgba(7,19,16,0) 0%,rgba(7,19,16,.92) 62%,#071310 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.cat-hero-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:24px;align-items:flex-end;justify-content:space-between;padding:56px 0 32px;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:.78rem;color:var(--ink-low);margin-bottom:12px;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--ink-low);opacity:.6;}
.cat-hero h1{font-size:clamp(1.9rem,4.2vw,3rem);font-weight:800;line-height:1.12;letter-spacing:-.03em;}
.cat-hero .hero-desc{margin-top:12px;font-size:.94rem;color:var(--ink-mid);max-width:640px;}
.hero-stats{display:flex;gap:28px;flex-wrap:wrap;}
.hero-stat{min-width:88px;}
.hero-stat b{display:block;font-size:1.42rem;font-weight:800;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2;}
.hero-stat span{font-size:.76rem;color:var(--ink-low);letter-spacing:.02em;}

/* ============ sections ============ */
.section{padding:56px 0;border-top:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;flex-wrap:wrap;}
.section-head h2{font-size:clamp(1.4rem,2.4vw,2rem);font-weight:700;line-height:1.2;}
.section-head .sub{margin-top:8px;font-size:.88rem;color:var(--ink-low);max-width:660px;}
.filter-row{display:flex;gap:10px;flex-wrap:wrap;}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid var(--line);background:var(--bg-card);
  font-size:.8rem;font-weight:600;color:var(--ink-mid);
}
.chip:hover{border-color:var(--brand);color:var(--brand);}
.chip.is-on{background:var(--brand);color:var(--brand-ink);border-color:var(--brand);}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 11px;
  border-radius:var(--r-pill);border:1px solid var(--line-strong);
  font-size:.72rem;font-weight:600;color:var(--ink-mid);white-space:nowrap;
}
.badge-brand{border-color:rgba(199,242,74,.6);color:var(--brand);}
.badge-hot{border-color:rgba(255,106,43,.55);color:var(--hot);}
.dot-live{width:6px;height:6px;border-radius:50%;background:var(--live);display:inline-block;}

/* lead rank */
.rank-lead{
  display:grid;grid-template-columns:320px 1fr;gap:26px;
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--sh-1);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.rank-lead:hover{transform:translateY(-6px);border-color:rgba(199,242,74,.55);box-shadow:var(--sh-brand);}
.rank-lead-media{position:relative;overflow:hidden;border-radius:var(--r-md);}
.rank-lead-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border:0;border-radius:var(--r-md);}
.rank-lead-media .lead-tag{position:absolute;left:12px;top:12px;}
.rank-lead-body h3{font-size:1.34rem;line-height:1.42;margin:14px 0 12px;}
.rank-lead:hover .rank-lead-body h3{color:var(--brand);}
.rank-lead-body p{font-size:.92rem;color:var(--ink-mid);max-width:660px;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:18px;font-size:.78rem;color:var(--ink-low);}
.meta-row .bdot{width:3px;height:3px;border-radius:50%;background:var(--ink-low);opacity:.7;}

/* rank list */
.rank-list{margin-top:22px;border-top:1px solid var(--line);}
.rank-row{
  display:grid;grid-template-columns:64px 1fr auto;align-items:center;gap:18px;
  padding:18px 14px;border-bottom:1px solid var(--line);
  border-radius:var(--r-sm);
  transition:background-color .2s ease,transform .2s ease;
}
.rank-row:hover{background:var(--bg-card);transform:translateX(4px);}
.rank-num{
  font-size:1.24rem;font-weight:800;font-variant-numeric:tabular-nums;
  color:transparent;-webkit-text-stroke:1px rgba(199,242,74,.55);
}
.rank-row:hover .rank-num{-webkit-text-stroke:1px var(--brand);color:rgba(199,242,74,.14);}
.rank-main{min-width:0;}
.rank-main h3{font-size:1.02rem;font-weight:600;line-height:1.5;overflow:hidden;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;}
.rank-row:hover .rank-main h3{color:var(--brand);}
.rank-main .rank-sub{margin-top:4px;font-size:.78rem;color:var(--ink-low);overflow:hidden;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;}
.rank-time{font-size:.78rem;color:var(--ink-low);font-variant-numeric:tabular-nums;white-space:nowrap;}

/* stats band */
.stats-band{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
}
.stat-cell{padding:26px 22px;border-right:1px solid var(--line);}
.stat-cell:last-child{border-right:0;}
.stat-cell b{display:block;font-size:1.7rem;font-weight:800;color:var(--ink-hi);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-cell span{display:block;margin-top:6px;font-size:.8rem;color:var(--ink-low);}

/* dimension cards (asymmetric) */
.dim-grid{display:grid;grid-template-columns:1.6fr 1fr;gap:20px;}
.dim-card{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.dim-card:hover{transform:translateY(-6px);border-color:rgba(199,242,74,.55);box-shadow:var(--sh-brand);}
.dim-card h3{font-size:1.06rem;font-weight:600;line-height:1.5;margin-bottom:12px;}
.dim-card p{font-size:.9rem;color:var(--ink-mid);}
.dim-list{margin-top:18px;display:grid;gap:12px;}
.dim-list li{display:flex;gap:12px;align-items:flex-start;font-size:.88rem;color:var(--ink-mid);}
.dim-list li::before{content:"";flex:0 0 auto;width:6px;height:6px;margin-top:9px;border-radius:2px;background:var(--brand);}
.dim-feature{background-image:linear-gradient(180deg,rgba(19,40,31,.2) 0%,rgba(19,40,31,.92) 100%);}

/* faq */
.faq-list{display:grid;gap:10px;}
.faq-item{
  background:var(--bg-card);border:1px solid var(--line);border-left:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;transition:border-color .2s ease,background-color .2s ease;
}
.faq-item[open]{border-left:3px solid var(--brand);border-color:rgba(199,242,74,.42);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:16px 20px;font-size:.96rem;font-weight:600;color:var(--ink-hi);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.faq-item[open] .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-body{padding:0 20px 20px;font-size:.9rem;color:var(--ink-mid);}

/* cta */
.cta-panel{
  background:var(--brand);border-radius:24px;padding:32px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-panel h2{color:var(--brand-ink);font-size:clamp(1.35rem,2.4vw,1.85rem);line-height:1.25;}
.cta-panel p{color:rgba(11,20,8,.78);font-size:.9rem;margin-top:10px;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* channel strip */
.channel-strip{display:flex;flex-wrap:wrap;gap:12px;}
.strip-link{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 20px;border-radius:var(--r-md);
  background:var(--bg-card);border:1px solid var(--line);
  font-size:.88rem;font-weight:600;color:var(--ink-mid);
  transition:transform .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.strip-link:hover{transform:translateY(-4px);border-color:rgba(199,242,74,.55);color:var(--ink-hi);box-shadow:var(--sh-brand);}

/* ============ footer ============ */
.site-footer{border-top:1px solid var(--line);background:var(--bg-elev);padding:56px 0 28px;margin-top:8px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;}
.footer-logo{display:flex;flex-direction:column;line-height:1.1;margin-bottom:14px;}
.footer-logo .logo-line1{font-size:.7rem;letter-spacing:.28em;color:var(--ink-low);font-weight:600;}
.footer-logo .logo-line2{font-size:1.1rem;font-weight:800;color:var(--ink-hi);}
.footer-about{font-size:.86rem;color:var(--ink-mid);max-width:320px;}
.footer-keys{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.footer-col h4{font-size:.85rem;color:var(--brand);font-weight:700;margin-bottom:14px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a,.footer-col li{font-size:.9rem;color:var(--ink-mid);}
.footer-col a:hover{color:var(--ink-hi);}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);text-align:center;}
.footer-bottom p{font-size:.75rem;color:var(--ink-low);line-height:1.9;}

@media (min-width:768px){
  .brand-row{min-height:76px;padding-top:0;padding-bottom:0;}
  .search-box{display:flex;}
  .section{padding:96px 0;}
}
@media (min-width:1024px){
  .container{padding:0 32px;}
  .cat-hero{min-height:300px;}
  .cat-hero-inner{padding:72px 0 44px;}
}
@media (max-width:1023px){
  .rank-lead{grid-template-columns:1fr;}
  .dim-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  .stats-band{grid-template-columns:1fr 1fr;}
  .stat-cell{border-bottom:1px solid var(--line);}
  .stat-cell:nth-child(2n){border-right:0;}
  .stat-cell:nth-last-child(-n+2){border-bottom:0;}
  .cta-panel{padding:32px 24px;}
  .rank-row{grid-template-columns:48px 1fr;row-gap:6px;}
  .rank-time{grid-column:2;}
  .hero-stats{gap:20px;}
}
@media (max-width:519px){
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .brand-row{gap:12px;padding-top:10px;padding-bottom:10px;}
  .logo-line2{font-size:1.02rem;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
}

/* roulang page: category5 */
:root{
  --bg-base:#071310;
  --bg-elev:#0E1E19;
  --bg-card:#13281F;
  --line:rgba(232,255,240,.09);
  --line-strong:rgba(232,255,240,.18);
  --ink-hi:#F1F7F2;
  --ink-mid:#A8B8AF;
  --ink-low:#67786F;
  --brand:#C7F24A;
  --brand-ink:#0B1408;
  --hot:#FF6A2B;
  --live:#FF4757;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(0,0,0,.35);
  --sh-2:0 14px 34px rgba(0,0,0,.48);
  --sh-brand:0 0 0 1px rgba(199,242,74,.55),0 10px 28px rgba(199,242,74,.18);
  --sec-y:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--ink-mid);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:.95rem;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
input{font:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
::selection{background:var(--brand);color:var(--brand-ink);}
.tnum{font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1280px;margin:0 auto;padding:0 20px;}
@media(min-width:1024px){.container{padding:0 32px;}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--bg-base);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.brand-row{border-bottom:1px solid var(--line);}
.brand-inner{
  display:flex;align-items:center;gap:18px;
  min-height:64px;
}
@media(min-width:1024px){.brand-inner{min-height:76px;gap:28px;}}
.brand-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 auto;
  background:var(--brand);color:var(--brand-ink);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:1rem;letter-spacing:-.02em;
}
.logo-text{display:flex;flex-direction:column;line-height:1.1;}
.logo-line1{font-size:.72rem;font-weight:600;letter-spacing:.22em;color:var(--ink-low);text-transform:uppercase;}
.logo-line2{font-size:1.02rem;font-weight:800;color:var(--ink-hi);letter-spacing:-.01em;}
@media(min-width:1024px){.logo-line2{font-size:1.12rem;}}
.header-search{
  display:none;flex:1 1 auto;max-width:420px;
  position:relative;
}
@media(min-width:1024px){.header-search{display:block;}}
.header-search input{
  width:100%;height:44px;border-radius:var(--r-pill);
  background:var(--bg-card);border:1px solid var(--line);
  color:var(--ink-hi);padding:0 46px 0 20px;font-size:.88rem;
  transition:border-color .2s ease,background .2s ease;
}
.header-search input::placeholder{color:var(--ink-low);}
.header-search input:focus{outline:none;border-color:var(--brand);background:var(--bg-elev);}
.header-search .search-icon{
  position:absolute;right:16px;top:50%;transform:translateY(-50%);
  color:var(--ink-low);font-size:.95rem;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.text-link{
  display:none;font-size:.86rem;color:var(--ink-mid);
  padding:6px 2px;border-bottom:1px solid transparent;
}
@media(min-width:768px){.text-link{display:inline-flex;}}
.text-link:hover{color:var(--brand);border-color:var(--brand);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);padding:11px 22px;
  font-size:.86rem;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;transition:all .22s ease;white-space:nowrap;
}
.btn-primary{background:var(--brand);color:var(--brand-ink);}
.btn-primary:hover{filter:brightness(.92);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{border-color:var(--line-strong);color:var(--ink-hi);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.btn-ink{background:var(--brand-ink);color:var(--brand);}
.btn-ink:hover{filter:brightness(1.25);transform:translateY(-1px);}
.btn-outline-ink{border-color:rgba(11,20,8,.42);color:var(--brand-ink);}
.btn-outline-ink:hover{background:rgba(11,20,8,.08);}
.nav-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;border:1px solid var(--line-strong);border-radius:12px;
  padding:0 11px;
}
@media(min-width:1024px){.nav-toggle{display:none;}}
.nav-toggle span{display:block;height:2px;background:var(--ink-hi);border-radius:2px;}

/* 频道行 */
.channel-row{border-bottom:1px solid var(--line);background:var(--bg-elev);}
.channel-inner{
  display:flex;align-items:stretch;gap:0;
  overflow-x:auto;scrollbar-width:none;height:48px;
}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  display:inline-flex;align-items:center;white-space:nowrap;
  padding:0 18px;font-size:.88rem;color:var(--ink-mid);
  border-right:1px solid var(--line);
  border-bottom:2px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.channel-link:first-child{padding-left:0;}
.channel-link:hover{color:var(--ink-hi);}
.channel-link.is-active{color:var(--brand);border-bottom-color:var(--brand);}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(3,10,8,.72);
  opacity:0;visibility:hidden;transition:opacity .25s ease;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);
  background:var(--bg-elev);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .28s ease;
  z-index:90;display:flex;flex-direction:column;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 20px;border-bottom:1px solid var(--line);
}
.drawer-title{font-size:.8rem;letter-spacing:.2em;color:var(--ink-low);}
.drawer-close{width:38px;height:38px;border:1px solid var(--line-strong);border-radius:12px;color:var(--ink-hi);font-size:1.1rem;}
.drawer-list{flex:1 1 auto;overflow-y:auto;}
.drawer-list a{
  display:flex;align-items:center;min-height:52px;padding:0 20px;
  border-bottom:1px solid var(--line);font-size:.92rem;color:var(--ink-mid);
}
.drawer-list a:hover{color:var(--brand);background:rgba(199,242,74,.05);}
.drawer-list a.is-active{color:var(--brand);}
.drawer-foot{padding:18px 20px;border-top:1px solid var(--line);}
.drawer-foot .btn{width:100%;}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;
  min-height:220px;
  display:flex;align-items:flex-end;
  background-image:
    linear-gradient(90deg,rgba(7,19,16,.94) 0%,rgba(7,19,16,.78) 42%,rgba(7,19,16,.42) 100%),
    linear-gradient(0deg,rgba(7,19,16,.98) 0%,rgba(7,19,16,.30) 62%,rgba(7,19,16,.62) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
@media(min-width:1024px){.cat-hero{min-height:320px;}}
.cat-hero-inner{
  padding-top:34px;padding-bottom:28px;
  display:flex;flex-direction:column;gap:18px;width:100%;
}
@media(min-width:1024px){
  .cat-hero-inner{flex-direction:row;align-items:flex-end;justify-content:space-between;gap:48px;padding-top:52px;padding-bottom:40px;}
}
.crumbs{display:flex;align-items:center;gap:8px;font-size:.76rem;color:var(--ink-low);}
.crumbs a:hover{color:var(--brand);}
.crumbs span.sep{opacity:.55;}
.cat-hero h1{
  font-size:clamp(1.9rem,4vw,2.9rem);
  line-height:1.15;font-weight:800;letter-spacing:-.03em;color:var(--ink-hi);
  margin-top:6px;
}
.cat-hero .hero-desc{margin-top:12px;max-width:620px;font-size:.95rem;color:var(--ink-mid);}
.cat-stats{
  display:flex;gap:26px;flex-wrap:wrap;
  padding-top:6px;
}
.cat-stat{min-width:92px;}
.cat-stat b{display:block;font-size:1.5rem;font-weight:800;color:var(--brand);line-height:1.2;}
.cat-stat span{font-size:.76rem;color:var(--ink-low);letter-spacing:.02em;}

/* ============ 通用板块 ============ */
.section{padding:56px 0;border-bottom:1px solid var(--line);}
@media(min-width:1024px){.section{padding:var(--sec-y) 0;}}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:28px;flex-wrap:wrap;
}
.section-head h2{
  font-size:clamp(1.4rem,2.4vw,2rem);font-weight:700;line-height:1.2;
  color:var(--ink-hi);letter-spacing:-.02em;
}
.section-head .sub{margin-top:8px;font-size:.88rem;color:var(--ink-low);max-width:640px;}
.section-mark{display:flex;align-items:center;gap:12px;}
.section-mark::before{content:"";display:block;width:4px;height:26px;border-radius:3px;background:var(--brand);}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  border:1px solid var(--line-strong);border-radius:var(--r-pill);
  padding:4px 12px;font-size:.75rem;letter-spacing:.02em;color:var(--ink-mid);
  white-space:nowrap;
}
.badge-brand{border-color:rgba(199,242,74,.5);color:var(--brand);}
.badge-hot{border-color:rgba(255,106,43,.5);color:var(--hot);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:.86rem;color:var(--ink-mid);}
.link-arrow i{display:inline-block;transition:transform .22s ease;font-style:normal;}
.link-arrow:hover{color:var(--brand);}
.link-arrow:hover i{transform:translateX(4px);}

/* ============ 全宽大图卡片堆叠（本页主版式） ============ */
.stack{display:flex;flex-direction:column;gap:20px;}
@media(min-width:1024px){.stack{gap:26px;}}
.tile{
  position:relative;display:block;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:var(--bg-card);box-shadow:var(--sh-1);
  transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.tile:hover{border-color:var(--brand);box-shadow:var(--sh-2);transform:translateY(-6px);}
.tile-media{position:relative;aspect-ratio:16/10;overflow:hidden;}
@media(min-width:768px){.tile-media{aspect-ratio:21/9;}}
.tile-media img{width:100%;height:100%;transition:transform .45s ease;}
.tile:hover .tile-media img{transform:scale(1.03);}
.tile-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(0deg,rgba(7,19,16,.96) 0%,rgba(7,19,16,.72) 38%,rgba(7,19,16,.12) 100%);
}
.tile-body{
  position:absolute;left:0;right:0;bottom:0;
  padding:20px;display:flex;flex-direction:column;gap:10px;
}
@media(min-width:768px){.tile-body{padding:30px 34px;gap:12px;max-width:760px;}}
.tile-tags{display:flex;gap:10px;flex-wrap:wrap;}
.tile h3{
  font-size:1.16rem;font-weight:700;line-height:1.4;color:var(--ink-hi);letter-spacing:-.01em;
}
@media(min-width:768px){.tile h3{font-size:clamp(1.35rem,2.2vw,1.8rem);line-height:1.3;}}
.tile p{font-size:.88rem;color:var(--ink-mid);max-width:640px;}
.tile-meta{font-size:.76rem;color:var(--ink-low);letter-spacing:.02em;font-variant-numeric:tabular-nums;}

/* ============ 流程步骤 ============ */
.steps{
  display:grid;gap:16px;
  grid-template-columns:repeat(1,minmax(0,1fr));
}
@media(min-width:520px){.steps{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.steps{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}}
.step{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px 22px;box-shadow:var(--sh-1);
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.step:hover{border-color:var(--brand);transform:translateY(-6px);box-shadow:var(--sh-brand);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  background:rgba(199,242,74,.12);border:1px solid rgba(199,242,74,.34);
  color:var(--brand);font-weight:800;font-size:1rem;font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.step h3{font-size:1.02rem;font-weight:700;color:var(--ink-hi);line-height:1.5;margin-bottom:8px;}
.step p{font-size:.86rem;color:var(--ink-mid);}

/* ============ 双栏对照 ============ */
.compare{display:grid;gap:20px;grid-template-columns:1fr;}
@media(min-width:1024px){.compare{grid-template-columns:1fr 1fr;gap:26px;}}
.panel{
  background:var(--bg-elev);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 24px;box-shadow:var(--sh-1);
}
.panel-brand{border-color:rgba(199,242,74,.34);}
.panel-hot{border-color:rgba(255,106,43,.32);}
.panel-head{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.panel-head h3{font-size:1.06rem;font-weight:700;color:var(--ink-hi);}
.panel-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;border-bottom:1px solid var(--line);font-size:.88rem;
}
.panel-list li:last-child{border-bottom:0;padding-bottom:0;}
.panel-list b{color:var(--ink-hi);font-weight:600;}
.dot{width:8px;height:8px;border-radius:50%;flex:0 0 auto;margin-top:9px;background:var(--brand);}
.dot-hot{background:var(--hot);}
.dot-live{background:var(--live);}

/* ============ 指标条 ============ */
.metrics{
  display:grid;gap:14px;grid-template-columns:repeat(2,minmax(0,1fr));
}
@media(min-width:1024px){.metrics{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}}
.metric{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 20px;box-shadow:var(--sh-1);
}
.metric b{display:block;font-size:1.7rem;font-weight:800;color:var(--brand);line-height:1.15;letter-spacing:-.02em;}
.metric span{display:block;margin-top:6px;font-size:.8rem;color:var(--ink-low);}
.metric p{margin-top:10px;font-size:.84rem;color:var(--ink-mid);}

/* ============ FAQ ============ */
.faq{display:flex;flex-direction:column;gap:10px;}
.faq-item{
  background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .25s ease;
}
.faq-item.is-open{border-color:rgba(199,242,74,.42);border-left:3px solid var(--brand);}
.faq-q{
  width:100%;min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 20px;text-align:left;font-size:.96rem;font-weight:600;color:var(--ink-hi);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line-strong);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:1rem;line-height:1;
  transition:transform .2s ease,border-color .2s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);border-color:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease;}
.faq-a-inner{padding:0 20px 20px;font-size:.9rem;color:var(--ink-mid);}

/* ============ CTA ============ */
.cta-wrap{padding:56px 0;}
@media(min-width:1024px){.cta-wrap{padding:88px 0;}}
.cta-panel{
  background:var(--brand);color:var(--brand-ink);
  border-radius:24px;padding:32px 26px;
  display:flex;flex-direction:column;gap:22px;
  box-shadow:var(--sh-2);
}
@media(min-width:1024px){
  .cta-panel{flex-direction:row;align-items:center;justify-content:space-between;padding:56px;gap:48px;}
}
.cta-panel h2{font-size:clamp(1.4rem,2.4vw,1.9rem);font-weight:800;color:var(--brand-ink);letter-spacing:-.02em;}
.cta-panel p{margin-top:10px;font-size:.92rem;color:rgba(11,20,8,.78);max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);background:var(--bg-elev);padding:52px 0 24px;}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}}
.footer-logo{display:flex;flex-direction:column;line-height:1.15;margin-bottom:14px;}
.footer-logo .logo-line1{font-size:.72rem;letter-spacing:.22em;color:var(--ink-low);font-weight:600;}
.footer-logo .logo-line2{font-size:1.08rem;font-weight:800;color:var(--ink-hi);}
.footer-about{font-size:.86rem;color:var(--ink-mid);max-width:320px;}
.footer-keys{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px;}
.footer-col h4{font-size:.85rem;color:var(--brand);font-weight:600;margin-bottom:14px;letter-spacing:.02em;}
.footer-col li{margin-bottom:10px;font-size:.9rem;color:var(--ink-mid);}
.footer-col a:hover{color:var(--ink-hi);}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  text-align:center;
}
.footer-bottom p{font-size:.76rem;color:var(--ink-low);line-height:1.9;}

/* roulang page: category4 */
:root{
  --bg-base:#071310;
  --bg-elev:#0E1E19;
  --bg-card:#13281F;
  --line:rgba(232,255,240,.09);
  --line-strong:rgba(232,255,240,.18);
  --ink-hi:#F1F7F2;
  --ink-mid:#A8B8AF;
  --ink-low:#67786F;
  --brand:#C7F24A;
  --brand-ink:#0B1408;
  --hot:#FF6A2B;
  --live:#FF4757;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 2px 8px rgba(0,0,0,.35);
  --sh-2:0 14px 34px rgba(0,0,0,.48);
  --sh-brand:0 0 0 1px rgba(199,242,74,.55),0 10px 28px rgba(199,242,74,.18);
  --sp-section:56px;
}
*{box-sizing:border-box;}
*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--ink-mid);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:.95rem;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-md);}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
time,.num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1280px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1024px){
  .container{padding-left:32px;padding-right:32px;}
  :root{--sp-section:96px;}
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--bg-base);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.brand-row{border-bottom:1px solid var(--line);}
.brand-inner{display:flex;align-items:center;gap:18px;height:64px;}
@media (min-width:1024px){.brand-inner{height:76px;gap:28px;}}
.logo{display:flex;flex-direction:column;justify-content:center;line-height:1.1;flex-shrink:0;}
.logo-line1{font-size:.72rem;letter-spacing:.22em;color:var(--brand);font-weight:600;}
.logo-line2{font-size:1.02rem;font-weight:800;color:var(--ink-hi);letter-spacing:.02em;}
@media (min-width:1024px){
  .logo-line1{font-size:.76rem;}
  .logo-line2{font-size:1.14rem;}
}
.search-box{flex:1;max-width:400px;display:none;}
@media (min-width:1024px){.search-box{display:block;}}
.search-box input{
  width:100%;height:44px;border-radius:var(--r-pill);
  background:var(--bg-card);border:1px solid var(--line);
  padding:0 20px;font-size:.86rem;color:var(--ink-hi);
  transition:border-color .2s ease,background .2s ease;
}
.search-box input::placeholder{color:var(--ink-low);}
.search-box input:focus{outline:none;border-color:var(--brand);background:#16291f;}
.brand-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.86rem;color:var(--ink-mid);transition:color .2s ease;
}
.text-link .arrow{transition:transform .2s ease;}
.text-link:hover{color:var(--brand);}
.text-link:hover .arrow{transform:translateX(4px);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--r-pill);padding:12px 24px;
  font-size:.86rem;font-weight:600;
  transition:transform .2s ease,filter .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:var(--brand-ink);}
.btn-primary:hover{filter:brightness(.92);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{border:1px solid var(--line-strong);color:var(--ink-hi);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.btn-sm{padding:9px 18px;font-size:.82rem;}
.menu-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:var(--r-md);
  border:1px solid var(--line-strong);color:var(--ink-hi);
}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand);}
@media (min-width:1024px){.menu-toggle{display:none;}}
.channel-row{border-bottom:1px solid var(--line);}
.channel-inner{display:flex;align-items:center;height:48px;overflow-x:auto;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;display:inline-flex;align-items:center;
  height:48px;padding:0 16px;white-space:nowrap;
  font-size:.86rem;color:var(--ink-mid);
  border-right:1px solid var(--line);
  transition:color .2s ease;
}
.channel-link:first-child{padding-left:0;}
.channel-link:hover{color:var(--ink-hi);}
.channel-link.is-active{color:var(--brand);font-weight:600;}
.channel-link.is-active::after{
  content:"";position:absolute;left:16px;right:16px;bottom:0;
  height:2px;background:var(--brand);border-radius:2px;
}
.channel-link:first-child.is-active::after{left:0;}

/* ============ 移动端抽屉 ============ */
.drawer-mask{
  position:fixed;inset:0;background:rgba(4,10,8,.68);
  opacity:0;visibility:hidden;transition:.25s ease;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:82%;max-width:340px;
  background:var(--bg-elev);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .28s ease;
  z-index:90;display:flex;flex-direction:column;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line);}
.drawer-close{width:36px;height:36px;border-radius:var(--r-sm);border:1px solid var(--line-strong);color:var(--ink-hi);}
.drawer-list{flex:1;overflow-y:auto;padding:8px 0;}
.drawer-list a{display:flex;align-items:center;height:52px;padding:0 22px;font-size:.94rem;color:var(--ink-mid);border-bottom:1px solid var(--line);}
.drawer-list a:hover,.drawer-list a.is-active{color:var(--brand);}
.drawer-foot{padding:20px;border-top:1px solid var(--line);}
.drawer-foot .btn{width:100%;}
body.no-scroll{overflow:hidden;}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;
  min-height:220px;
  display:flex;align-items:flex-end;
  background-image:
    linear-gradient(90deg,rgba(7,19,16,.94) 0%,rgba(7,19,16,.72) 55%,rgba(7,19,16,.42) 100%),
    linear-gradient(180deg,rgba(7,19,16,0) 0%,rgba(7,19,16,.92) 72%,#071310 100%),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover,cover,cover;
  background-position:center,center,center;
  border-bottom:1px solid var(--line);
}
@media (min-width:1024px){.cat-hero{min-height:320px;}}
.cat-hero-inner{padding-top:44px;padding-bottom:40px;display:flex;flex-wrap:wrap;gap:28px;align-items:flex-end;justify-content:space-between;}
.cat-hero-main{max-width:660px;}
.crumb{display:flex;align-items:center;gap:8px;font-size:.75rem;color:var(--ink-low);margin-bottom:14px;letter-spacing:.02em;}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:var(--ink-low);opacity:.6;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(199,242,74,.5);
  color:var(--brand);font-size:.74rem;font-weight:600;letter-spacing:.06em;
  margin-bottom:16px;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--brand);}
.cat-hero h1{
  font-size:clamp(1.9rem,4.2vw,2.9rem);
  font-weight:800;line-height:1.14;letter-spacing:-.02em;
  color:var(--ink-hi);
}
.cat-hero-sub{margin-top:12px;font-size:.92rem;color:var(--ink-mid);max-width:52ch;}
.hero-stats{display:flex;gap:28px;flex-wrap:wrap;}
.stat-item{border-left:1px solid var(--line-strong);padding-left:16px;}
.stat-num{font-size:1.5rem;font-weight:800;color:var(--brand);line-height:1.2;}
.stat-label{font-size:.74rem;color:var(--ink-low);letter-spacing:.04em;}

/* ============ 通用板块 ============ */
.section{padding-top:var(--sp-section);padding-bottom:var(--sp-section);}
.section + .section{border-top:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap;}
.section-title{font-size:clamp(1.4rem,2.4vw,2rem);font-weight:700;line-height:1.2;color:var(--ink-hi);letter-spacing:-.01em;}
.section-desc{margin-top:10px;font-size:.88rem;color:var(--ink-low);max-width:64ch;}

/* ============ 双栏对照卡片（分类页 04 版式） ============ */
.compare-grid{display:grid;grid-template-columns:1fr;gap:26px;}
@media (min-width:900px){.compare-grid{grid-template-columns:1fr 1fr;gap:30px;}}
.compare-col{
  border-radius:var(--r-lg);
  padding:22px 20px 10px;
  background:linear-gradient(180deg,rgba(19,40,31,.72),rgba(14,30,25,.35));
  border:1px solid var(--line);
}
.compare-col--a{border-color:rgba(199,242,74,.34);}
.compare-col--b{border-color:rgba(255,106,43,.34);}
.compare-col-head{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:18px;}
.compare-col-title{display:flex;align-items:center;gap:10px;font-size:1.1rem;font-weight:700;color:var(--ink-hi);}
.compare-col-title::before{content:"";width:4px;height:20px;border-radius:2px;background:var(--brand);}
.compare-col--b .compare-col-title::before{background:var(--hot);}
.badge{
  display:inline-flex;align-items:center;
  padding:3px 11px;border-radius:var(--r-pill);
  border:1px solid var(--line-strong);
  font-size:.7rem;color:var(--ink-mid);letter-spacing:.04em;line-height:1.7;
}
.badge-brand{border-color:rgba(199,242,74,.55);color:var(--brand);}
.badge-hot{border-color:rgba(255,106,43,.55);color:var(--hot);}
.compare-list{display:flex;flex-direction:column;}
.compare-card{
  display:flex;gap:14px;
  padding:16px 14px;
  border-radius:var(--r-md);
  border:1px solid transparent;
  border-bottom:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,background .25s ease,box-shadow .25s ease;
}
.compare-card:last-child{border-bottom-color:transparent;}
.compare-card:hover{
  transform:translateY(-4px);
  background:var(--bg-card);
  border-color:rgba(199,242,74,.5);
  box-shadow:var(--sh-brand);
}
.compare-col--b .compare-card:hover{
  border-color:rgba(255,106,43,.5);
  box-shadow:0 0 0 1px rgba(255,106,43,.42),0 10px 26px rgba(255,106,43,.14);
}
.compare-thumb{
  width:96px;height:72px;flex-shrink:0;
  border-radius:var(--r-sm);overflow:hidden;
  background:var(--bg-card);border:1px solid var(--line);
}
.compare-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.compare-body{min-width:0;flex:1;}
.compare-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:8px;}
.compare-card h3{
  font-size:1.02rem;font-weight:600;line-height:1.5;color:var(--ink-hi);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s ease;
}
.compare-card:hover h3{color:var(--brand);}
.compare-col--b .compare-card:hover h3{color:var(--hot);}
.compare-summary{
  margin-top:6px;font-size:.82rem;line-height:1.7;color:var(--ink-low);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.compare-meta{
  margin-top:10px;display:flex;align-items:center;gap:10px;
  font-size:.74rem;color:var(--ink-low);letter-spacing:.03em;
}
.compare-meta .divider{width:1px;height:10px;background:var(--line-strong);}

/* ============ 流程四步 ============ */
.flow-grid{display:grid;grid-template-columns:1fr;gap:18px;}
@media (min-width:640px){.flow-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.flow-grid{grid-template-columns:repeat(4,1fr);}}
.flow-card{
  position:relative;padding:26px 22px;
  background:var(--bg-card);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.flow-card:hover{transform:translateY(-6px);border-color:var(--brand);box-shadow:var(--sh-2);}
.flow-num{
  font-size:1.7rem;font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px var(--brand);
  margin-bottom:14px;letter-spacing:.02em;
}
.flow-card h3{font-size:1rem;font-weight:600;color:var(--ink-hi);margin-bottom:8px;}
.flow-card p{font-size:.84rem;color:var(--ink-low);line-height:1.75;}

/* ============ 指标数据块 ============ */
.metric-grid{display:grid;grid-template-columns:1fr;gap:18px;}
@media (min-width:640px){.metric-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.metric-grid{grid-template-columns:repeat(3,1fr);}}
.metric-card{
  padding:22px;border-radius:var(--r-lg);
  background:var(--bg-elev);border:1px solid var(--line);
  display:flex;gap:16px;align-items:flex-start;
  transition:border-color .25s ease,transform .25s ease;
}
.metric-card:hover{border-color:var(--line-strong);transform:translateY(-4px);}
.metric-value{font-size:1.6rem;font-weight:800;color:var(--brand);line-height:1.15;}
.metric-label{font-size:.78rem;color:var(--ink-low);letter-spacing:.04em;}
.metric-text{font-size:.84rem;color:var(--ink-mid);line-height:1.75;margin-top:4px;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:10px;max-width:900px;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-md);
  background:var(--bg-card);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-left:3px solid var(--brand);border-color:rgba(199,242,74,.34);}
.faq-item summary{
  list-style:none;cursor:pointer;
  min-height:64px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:.96rem;font-weight:600;color:var(--ink-hi);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex-shrink:0;font-size:1.2rem;font-weight:400;color:var(--brand);
  transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"×";}
.faq-item summary:hover{color:var(--brand);}
.faq-body{padding:0 20px 20px;font-size:.88rem;color:var(--ink-mid);line-height:1.8;animation:fadeUp .2s ease;}
@keyframes fadeUp{from{opacity:0;transform:translateY(-4px);}to{opacity:1;transform:translateY(0);}}

/* ============ CTA 面板 ============ */
.cta-wrap{padding-top:var(--sp-section);padding-bottom:var(--sp-section);}
.cta-panel{
  background:var(--brand);border-radius:var(--r-xl);
  padding:32px 24px;
  display:flex;flex-direction:column;gap:24px;
  transition:box-shadow .25s ease;
}
@media (min-width:900px){
  .cta-panel{flex-direction:row;align-items:center;justify-content:space-between;padding:56px;}
}
.cta-panel h2{font-size:clamp(1.35rem,2.3vw,1.9rem);font-weight:800;color:var(--brand-ink);line-height:1.25;}
.cta-panel p{margin-top:10px;font-size:.9rem;color:rgba(11,20,8,.72);max-width:56ch;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-panel .btn-dark{background:var(--brand-ink);color:var(--brand);}
.cta-panel .btn-dark:hover{filter:brightness(1.15);transform:translateY(-1px);}
.cta-panel .btn-line{border:1px solid rgba(11,20,8,.42);color:var(--brand-ink);}
.cta-panel .btn-line:hover{border-color:var(--brand-ink);background:rgba(11,20,8,.06);}
.cta-panel :focus-visible{outline-color:var(--brand-ink);}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);background:var(--bg-elev);margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:32px;
  padding:56px 0 40px;
}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}}
.footer-logo{display:flex;flex-direction:column;line-height:1.15;margin-bottom:14px;}
.footer-logo .logo-line1{font-size:.72rem;letter-spacing:.2em;color:var(--brand);font-weight:600;}
.footer-logo .logo-line2{font-size:1.06rem;font-weight:800;color:var(--ink-hi);}
.footer-about{font-size:.86rem;color:var(--ink-low);line-height:1.8;max-width:34ch;}
.footer-keys{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px;}
.footer-col h4{font-size:.85rem;color:var(--brand);font-weight:600;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col li{font-size:.9rem;color:var(--ink-mid);}
.footer-col a{font-size:.9rem;color:var(--ink-mid);transition:color .2s ease;}
.footer-col a:hover{color:var(--ink-hi);}
.footer-bottom{border-top:1px solid var(--line);padding:22px 0 30px;text-align:center;}
.footer-bottom p{font-size:.75rem;color:var(--ink-low);line-height:1.9;}

/* ============ 响应式补充 ============ */
@media (max-width:519px){
  .compare-thumb{width:82px;height:62px;}
  .hero-stats{gap:18px;}
  .stat-item{padding-left:12px;}
  .stat-num{font-size:1.24rem;}
  .cat-hero-inner{padding-top:32px;padding-bottom:30px;}
}
@media (min-width:1280px){
  .container{max-width:1280px;}
}