/* roulang page: index */
:root{
  --c-primary:#E8501E;
  --c-primary-deep:#BC3A0E;
  --c-primary-soft:#FDEDE6;
  --c-secondary:#10403B;
  --c-secondary-soft:#E7F0EE;
  --c-accent:#FFC93C;
  --c-bg:#FBF9F6;
  --c-surface:#FFFFFF;
  --c-line:#E7E2DA;
  --c-line-strong:#D9D3CA;
  --c-text:#22262B;
  --c-text-2:#6B7078;
  --c-text-3:#9AA0A6;
  --c-success:#1F8A5B;
  --c-danger:#C4342B;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:ui-monospace,"Roboto Mono",monospace;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(34,38,43,.05);
  --sh-2:0 8px 24px -14px rgba(34,38,43,.18);
  --sh-3:0 18px 40px -22px rgba(232,80,30,.35);
  --nav-h:112px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary)}
button{font-family:inherit;cursor:pointer}
input{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.01em}
p{margin:0 0 1.4em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:1200px;max-width:100%;margin:0 auto;padding:0 24px}
.section{padding:72px 0;scroll-margin-top:var(--nav-h)}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{margin-bottom:32px}
.section-title{font-size:30px;line-height:1.35;color:var(--c-secondary);display:flex;align-items:center;gap:12px}
.section-title::before{content:"";width:4px;height:18px;border-radius:2px;background:var(--c-primary);display:inline-block}
.section-sub{margin-top:12px;font-size:16px;color:var(--c-text-2);max-width:760px}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px}
.text-link{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.text-link .arrow{transition:transform .18s ease}
.text-link:hover .arrow{transform:translateX(2px)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;border-radius:var(--r-md);font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .18s ease,background .18s ease,border-color .18s ease,box-shadow .18s ease,color .18s ease;white-space:nowrap}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3)}
.btn-outline{background:transparent;border-color:var(--c-line-strong);color:var(--c-text)}
.btn-outline:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px)}
.btn-accent{background:var(--c-accent);color:#2A2410}
.btn-accent:hover{background:#F0B821;color:#2A2410;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary)}
.btn-sm{height:36px;padding:0 14px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed}
.btn-block{width:100%}

/* 徽章与标签 */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;line-height:1;padding:5px 10px;border-radius:var(--r-pill)}
.badge-solid{background:var(--c-primary);color:#fff}
.badge-accent{background:var(--c-accent);color:#2A2410;font-weight:600}
.badge-soft{background:var(--c-primary-soft);color:var(--c-primary-deep)}
.badge-outline{border:1px solid var(--c-line-strong);color:var(--c-text-2);background:var(--c-surface)}
.badge-line-primary{border:1px solid rgba(232,80,30,.35);background:rgba(232,80,30,.08);color:var(--c-primary-deep)}
.badge-line-secondary{border:1px solid rgba(16,64,59,.3);background:rgba(16,64,59,.07);color:var(--c-secondary)}
.badge-line-accent{border:1px solid rgba(255,201,60,.6);background:rgba(255,201,60,.16);color:#8A6A00}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:50;background:var(--c-surface);border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.navbar{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:34px;height:34px;border-radius:var(--r-md);background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;letter-spacing:.02em}
.brand-text{font-size:16px;font-weight:700;color:var(--c-text);white-space:nowrap}
.brand-text:hover{color:var(--c-text)}
.search{position:relative;flex:1;max-width:360px;margin-left:auto}
.search input{width:100%;height:40px;border-radius:var(--r-pill);border:1px solid var(--c-line-strong);background:var(--c-bg);padding:0 16px 0 40px;font-size:14px;color:var(--c-text);transition:border-color .18s ease,box-shadow .18s ease}
.search input::placeholder{color:var(--c-text-3)}
.search input:focus{border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(232,80,30,.18);outline:none}
.search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--c-text-3)}
.nav-actions{display:flex;align-items:center;gap:18px;flex-shrink:0;margin-left:auto}
.nav-login{font-size:15px;color:var(--c-text)}
.nav-login:hover{color:var(--c-primary)}
.burger{display:none;width:40px;height:40px;border-radius:var(--r-md);border:1px solid var(--c-line-strong);background:var(--c-surface);align-items:center;justify-content:center}
.burger span{display:block;width:16px;height:2px;background:var(--c-text);position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--c-text)}
.burger span::before{top:-5px}
.burger span::after{top:5px}

.tabs{position:relative;border-top:1px solid var(--c-line)}
.tabs-inner{display:flex;align-items:center;gap:28px;height:48px;overflow-x:auto;scrollbar-width:none;padding-right:24px}
.tabs-inner::-webkit-scrollbar{display:none}
.tab{position:relative;font-size:15px;color:var(--c-text-2);white-space:nowrap;padding:0 2px;height:48px;display:inline-flex;align-items:center}
.tab:hover{color:var(--c-text)}
.tab.active{color:var(--c-text);font-weight:600}
.tab.active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-primary);border-radius:2px}
.tabs::after{content:"";position:absolute;right:0;top:1px;bottom:1px;width:24px;background:linear-gradient(90deg,rgba(251,249,246,0),var(--c-surface));pointer-events:none}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(34,38,43,.45);opacity:0;visibility:hidden;transition:opacity .2s ease;z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;background:var(--c-surface);z-index:90;transform:translateX(100%);transition:transform .24s cubic-bezier(.2,.7,.3,1);padding:24px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer h2{font-size:16px;color:var(--c-secondary);margin-bottom:12px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.drawer-nav a{padding:10px 12px;border-radius:var(--r-md);font-size:15px;color:var(--c-text-2)}
.drawer-nav a.active,.drawer-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary-deep)}
.drawer-search{display:flex;gap:8px;margin-bottom:20px}

/* Hero */
.hero{padding:56px 0 64px;background:var(--c-bg);border-bottom:1px solid var(--c-line);position:relative}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.hero-eyebrow{font-size:13px;letter-spacing:.12em;color:var(--c-primary);font-weight:600;margin-bottom:14px}
.hero h1{font-size:clamp(28px,4vw,46px);line-height:1.25;font-weight:700;color:var(--c-text)}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:var(--c-text-2);max-width:560px}
.hero-actions{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.hero-stats{display:flex;margin-top:36px;border-top:1px solid var(--c-line);padding-top:22px}
.stat{flex:1;padding-right:20px;border-right:1px solid var(--c-line)}
.stat:last-child{border-right:none}
.stat-num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:24px;font-weight:700;color:var(--c-secondary)}
.stat-label{font-size:13px;color:var(--c-text-2);margin-top:2px}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-xl);box-shadow:inset 0 0 0 1px rgba(255,255,255,.6)}
.hero-card{position:absolute;left:16px;right:16px;bottom:16px;background:rgba(255,255,255,.94);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:16px 18px;box-shadow:var(--sh-1)}
.hero-card .badge{margin-bottom:10px}
.hero-card ul li{font-size:14px;color:var(--c-text-2);display:flex;gap:8px;align-items:flex-start;line-height:1.7}
.hero-card ul li+li{margin-top:6px}
.dot{width:6px;height:6px;border-radius:2px;background:var(--c-primary);flex-shrink:0;margin-top:9px}

/* 频道快捷入口 */
.chips-wrap{padding:20px 0;background:var(--c-surface);border-bottom:1px solid var(--c-line)}
.chips{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.chip{display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:var(--r-pill);border:1px solid var(--c-line-strong);font-size:14px;color:var(--c-text-2);background:var(--c-surface);transition:all .18s ease}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary)}
.chip.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}

/* 权益对比 */
.compare-table{width:100%;border-collapse:separate;border-spacing:0;table-layout:fixed;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1)}
.compare-table th,.compare-table td{padding:16px 18px;text-align:left;font-size:15px;border-bottom:1px dashed var(--c-line)}
.compare-table thead th{background:var(--c-surface);font-size:15px;color:var(--c-secondary);position:sticky;top:64px;z-index:2;border-bottom:1px solid var(--c-line)}
.compare-table tbody tr:last-child th,.compare-table tbody tr:last-child td{border-bottom:none}
.compare-table tbody th{font-weight:600;color:var(--c-text);width:32%}
.th-plan{text-align:center}
.th-plan .plan-name{display:block;font-size:16px;font-weight:700;color:var(--c-secondary)}
.th-plan .plan-note{display:block;font-size:13px;color:var(--c-text-2);margin-top:4px;font-weight:400}
.col-recommend{background:var(--c-primary-soft);position:relative}
.compare-table thead .col-recommend::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--c-accent)}
.cell-center{text-align:center}
.tick{width:22px;height:22px;border-radius:50%;background:var(--c-primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:12px;line-height:1}
.dash{display:inline-block;width:14px;height:2px;background:var(--c-text-3);border-radius:2px}
.compare-foot td,.compare-foot th{background:var(--c-surface);padding-top:18px;padding-bottom:20px}
.compare-cards{display:none}
.plan-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--sh-1)}
.plan-card+.plan-card{margin-top:16px}
.plan-card h3{font-size:18px;color:var(--c-secondary);display:flex;align-items:center;gap:10px}
.plan-card ul{margin:14px 0 18px}
.plan-card ul li{font-size:14px;color:var(--c-text-2);display:flex;gap:8px;padding:6px 0;border-bottom:1px dashed var(--c-line)}
.plan-card ul li:last-child{border-bottom:none}
.plan-card.is-recommend{border-color:rgba(232,80,30,.3);box-shadow:var(--sh-2)}
.plan-card.is-recommend::before{content:"";display:block;height:4px;border-radius:2px;background:var(--c-accent);margin:-20px -20px 16px}

/* 等级阶梯 */
.ladder{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:end}
.ladder-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.ladder-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(232,80,30,.25)}
.ladder-card:nth-child(1){min-height:236px}
.ladder-card:nth-child(2){min-height:252px}
.ladder-card:nth-child(3){min-height:268px}
.ladder-card:nth-child(4){min-height:284px}
.ladder-name{margin-top:14px;font-size:18px;font-weight:600;color:var(--c-text)}
.ladder-card ul{margin-top:14px}
.ladder-card ul li{font-size:14px;color:var(--c-text-2);padding:5px 0;display:flex;gap:8px;align-items:flex-start}
.bar{height:6px;border-radius:var(--r-pill);background:var(--c-line);overflow:hidden;margin-top:18px}
.bar i{display:block;height:100%;background:var(--c-primary);border-radius:var(--r-pill)}

/* 内容预览卡 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;position:relative}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(232,80,30,.25)}
.card-media{position:relative;overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.card-tag{position:absolute;left:12px;top:12px;background:var(--c-secondary);color:#fff;font-size:13px;line-height:1;padding:6px 12px;border-radius:var(--r-pill)}
.card-body{padding:18px 18px 20px}
.card-body h3{font-size:18px;line-height:1.5;color:var(--c-text)}
.card-body p{font-size:14px;color:var(--c-text-2);line-height:1.75;margin-top:10px}
.card-meta{font-size:13px;color:var(--c-text-2);margin-top:14px;display:flex;align-items:center;gap:8px}

/* 资讯列表 */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;position:relative;display:flex;flex-direction:column}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(232,80,30,.25)}
.post-card .card-media img{aspect-ratio:16/9}
.post-card .card-body{display:flex;flex-direction:column;flex:1}
.post-title{font-size:16px;font-weight:600;line-height:1.5;color:var(--c-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-title:hover{color:var(--c-primary)}
.post-summary{font-size:14px;line-height:1.75;color:var(--c-text-2);margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;padding-top:14px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-text-2)}
.post-foot .arrow{color:var(--c-primary);font-weight:600}
.stretched::after{content:"";position:absolute;inset:0;z-index:1}
.empty-state{grid-column:1/-1;text-align:center;padding:48px 20px;background:var(--c-surface);border:1px dashed var(--c-line-strong);border-radius:var(--r-lg)}
.empty-icon{width:64px;height:64px;margin:0 auto 16px;border-radius:50%;border:1px solid var(--c-line-strong);display:flex;align-items:center;justify-content:center;color:var(--c-text-3);font-size:22px}
.empty-text{font-size:15px;color:var(--c-text-2);margin-bottom:18px}

/* FAQ */
.faq{max-width:860px;margin:0 auto}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);margin-bottom:12px;overflow:hidden}
.faq-item:last-child{margin-bottom:0}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:52px;padding:10px 18px;background:transparent;border:none;text-align:left;font-size:16px;font-weight:600;color:var(--c-text)}
.faq-icon{width:20px;height:20px;flex-shrink:0;position:relative;color:var(--c-text-2);transition:transform .2s cubic-bezier(.2,.7,.3,1),color .2s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:currentColor;border-radius:2px}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--c-primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s cubic-bezier(.2,.7,.3,1)}
.faq-a-inner{padding:0 18px 18px 21px;border-left:3px solid var(--c-primary);margin-left:18px;font-size:15px;line-height:1.85;color:var(--c-text-2)}
.faq-item.is-open .faq-a{max-height:420px}

/* CTA */
.cta{background:var(--c-secondary);border-radius:var(--r-xl);padding:56px;position:relative;overflow:hidden;color:#fff}
.cta::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.04) 0 2px,transparent 2px 12px)}
.cta-grid{position:relative;display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center}
.cta h2{font-size:28px;line-height:1.35;color:#fff}
.cta-list{margin-top:18px}
.cta-list li{font-size:15px;color:rgba(255,255,255,.72);display:flex;gap:10px;align-items:flex-start;padding:4px 0}
.cta-list .sq{width:6px;height:6px;background:var(--c-accent);border-radius:1px;margin-top:9px;flex-shrink:0}
.cta-right{text-align:right}
.cta-note{font-size:13px;color:rgba(255,255,255,.6);margin-top:12px}

/* 页脚 */
.site-footer{background:var(--c-secondary);color:rgba(255,255,255,.7);margin-top:72px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding:56px 0 40px;border-top:1px solid rgba(255,255,255,.12)}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:var(--c-primary)}
.footer-brand span{font-size:16px;font-weight:700;color:#fff}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7)}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:14px;font-weight:600}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.7);padding:5px 0}
.footer-col a:hover{color:var(--c-accent)}
.footer-keyword{display:inline-block;margin-top:12px;font-size:13px;padding:5px 10px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.75)}
.footer-bottom{height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.6);flex-wrap:wrap}
.footer-bottom span{display:inline-block;padding:2px 0}

@media (max-width:1199px){
  .container{width:960px}
  .hero-grid{gap:32px}
  .post-grid,.grid-3{grid-template-columns:repeat(2,1fr)}
  .ladder{grid-template-columns:repeat(2,1fr);align-items:stretch}
  .ladder-card,.ladder-card:nth-child(1),.ladder-card:nth-child(2),.ladder-card:nth-child(3),.ladder-card:nth-child(4){min-height:0}
}
@media (max-width:991px){
  .container{width:100%;padding:0 24px}
  .search{display:none}
  .burger{display:inline-flex}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-visual{order:2}
  .section{padding:56px 0;scroll-margin-top:104px}
  .cta{padding:40px}
  .cta-grid{grid-template-columns:1fr;gap:24px}
  .cta-right{text-align:left}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .compare-table{display:none}
  .compare-cards{display:block}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .brand-text{font-size:14px;white-space:normal;line-height:1.25}
  .nav-actions{gap:10px}
  .nav-login{display:none}
  .tabs-inner{gap:8px;height:auto;padding:10px 16px;flex-wrap:nowrap}
  .tab{height:34px;padding:0 14px;border:1px solid var(--c-line-strong);border-radius:var(--r-pill);font-size:14px}
  .tab.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
  .tab.active::after{display:none}
  .grid-3,.post-grid{grid-template-columns:1fr}
  .ladder{grid-template-columns:1fr}
  .hero{padding:36px 0 44px}
  .hero-stats{flex-direction:column;gap:0}
  .stat{border-right:none;border-bottom:1px solid var(--c-line);padding:12px 0}
  .stat:last-child{border-bottom:none}
  .section-title{font-size:24px}
  .cta{padding:28px 20px}
  .cta h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;padding:36px 0 24px}
  .footer-bottom{height:auto;padding:16px 0;flex-direction:column;align-items:flex-start;gap:6px}
  .section-head-row{flex-direction:column;align-items:flex-start;gap:12px}
  .hero-actions .btn{width:100%}
}

/* roulang page: article */
:root{
  --c-primary:#E8501E;
  --c-primary-deep:#BC3A0E;
  --c-primary-soft:#FDEDE6;
  --c-secondary:#10403B;
  --c-secondary-soft:#E7F0EE;
  --c-accent:#FFC93C;
  --c-bg:#FBF9F6;
  --c-surface:#FFFFFF;
  --c-line:#E7E2DA;
  --c-line-strong:#D9D3CA;
  --c-text:#22262B;
  --c-text-2:#6B7078;
  --c-text-3:#9AA0A6;
  --c-success:#1F8A5B;
  --c-danger:#C4342B;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:ui-monospace,"Roboto Mono",monospace;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(34,38,43,.05);
  --sh-2:0 8px 24px -14px rgba(34,38,43,.18);
  --sh-3:0 18px 40px -22px rgba(232,80,30,.35);
  --sec-pad:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary);}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.container{width:1200px;max-width:100%;margin:0 auto;padding:0 24px;}
@media (max-width:1199px){.container{width:960px;}}
@media (max-width:991px){.container{width:100%;padding:0 24px;}}
@media (max-width:767px){.container{width:100%;padding:0 16px;}}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.navbar{
  height:64px;display:flex;align-items:center;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--c-text);flex:0 0 auto;}
.brand:hover{color:var(--c-text);}
.brand-mark{
  width:32px;height:32px;border-radius:var(--r-md);
  background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:13px;font-weight:700;letter-spacing:.02em;
}
.brand-text{font-size:15px;font-weight:700;white-space:nowrap;}
.search{
  position:relative;flex:1 1 auto;max-width:420px;
}
.search-icon{
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  width:16px;height:16px;color:var(--c-text-3);pointer-events:none;
}
.search input{
  width:100%;height:40px;border-radius:var(--r-pill);
  border:1px solid var(--c-line-strong);background:var(--c-surface);
  padding:0 16px 0 38px;font-size:14px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search input::placeholder{color:var(--c-text-3);}
.search input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(232,80,30,.16);}
.nav-actions{display:flex;align-items:center;gap:14px;margin-left:auto;flex:0 0 auto;}
.nav-login{font-size:14px;color:var(--c-text);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 20px;border-radius:var(--r-md);
  font-size:14px;font-weight:600;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-outline{border:1px solid var(--c-line-strong);color:var(--c-text);background:var(--c-surface);}
.btn-outline:hover{border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost{color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-soft);}
.btn-accent{background:var(--c-accent);color:#22262B;}
.btn-accent:hover{background:#F0B520;color:#22262B;transform:translateY(-1px);}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-sm{height:34px;padding:0 14px;font-size:13px;}
.burger{
  display:none;width:40px;height:40px;border-radius:var(--r-md);
  border:1px solid var(--c-line-strong);position:relative;
}
.burger span,.burger span::before,.burger span::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:16px;height:2px;background:var(--c-text);border-radius:2px;content:"";transition:.2s ease;
}
.burger span{top:19px;}
.burger span::before{top:-5px;}
.burger span::after{top:5px;}

.tabs{
  border-top:1px solid var(--c-line);
  background:var(--c-surface);
}
.tabs-inner{
  height:48px;display:flex;align-items:center;gap:26px;
  overflow-x:auto;scrollbar-width:none;position:relative;
}
.tabs-inner::-webkit-scrollbar{display:none;}
.tab{
  position:relative;flex:0 0 auto;
  font-size:15px;color:var(--c-text-2);line-height:48px;
}
.tab:hover{color:var(--c-text);}
.tab.active{color:var(--c-text);font-weight:600;}
.tab.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-primary);border-radius:2px;
}

/* ---------- 面包屑 ---------- */
.crumb-bar{border-bottom:1px solid var(--c-line);background:var(--c-bg);}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-2);padding:14px 0;
}
.crumb a{color:var(--c-text-2);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:var(--c-text-3);}
.crumb .current{color:var(--c-text);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章主体 ---------- */
.article-wrap{
  display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:40px;padding:48px 0 72px;align-items:start;
}
.article-head .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;color:var(--c-primary);
  background:var(--c-primary-soft);border-radius:var(--r-pill);
  padding:4px 12px;margin-bottom:16px;
}
.article-head h1{
  font-size:clamp(26px,3.4vw,38px);line-height:1.35;font-weight:700;color:var(--c-text);
  letter-spacing:.01em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:18px;font-size:13px;color:var(--c-text-2);
}
.article-meta .dot{color:var(--c-text-3);}
.article-meta .pill{
  border:1px solid var(--c-line);border-radius:var(--r-pill);
  padding:2px 10px;font-size:12px;color:var(--c-secondary);background:var(--c-secondary-soft);
}
.cover-fig{margin-top:24px;}
.cover-fig img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-lg);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.6);
}
.cover-fig figcaption{
  margin-top:10px;text-align:center;font-size:13px;color:var(--c-text-3);
}
.article-content{
  max-width:760px;margin-top:32px;
  font-size:17px;line-height:1.9;
}
.article-content p{margin:0 0 1.4em;}
.article-content h2{
  font-size:24px;font-weight:700;color:var(--c-secondary);
  margin:48px 0 16px;line-height:1.35;
}
.article-content h3{
  font-size:20px;font-weight:600;color:var(--c-text);
  margin:32px 0 12px;line-height:1.45;
}
.article-content ul,.article-content ol{padding-left:1.4em;margin:0 0 1.4em;list-style:disc;}
.article-content ol{list-style:decimal;}
.article-content li{margin-bottom:8px;}
.article-content li::marker{color:var(--c-primary);font-weight:700;}
.article-content blockquote{
  border-left:3px solid var(--c-primary);
  background:var(--c-primary-soft);
  padding:16px 20px;border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--c-text-2);margin:0 0 1.4em;
}
.article-content img{border-radius:var(--r-md);margin:8px 0 1.4em;}
.article-content a{color:var(--c-primary);border-bottom:1px solid rgba(232,80,30,.35);}
.article-content a:hover{border-bottom-color:var(--c-primary);}
.article-content code{
  font-family:var(--font-num);font-size:.92em;
  background:var(--c-secondary-soft);border-radius:var(--r-sm);padding:2px 6px;
}
.article-content table{
  width:100%;border-collapse:collapse;font-size:15px;margin:0 0 1.4em;
}
.article-content th{
  background:var(--c-secondary);color:#fff;font-weight:600;text-align:left;
  padding:12px 14px;
}
.article-content td{
  border:1px solid var(--c-line);padding:12px 14px;background:var(--c-surface);
}
.article-empty{
  margin-top:32px;padding:48px 24px;text-align:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
}
.article-empty .ring{
  width:64px;height:64px;margin:0 auto 16px;border-radius:50%;
  border:1px solid var(--c-line-strong);display:flex;align-items:center;justify-content:center;
  color:var(--c-text-3);font-size:22px;
}
.article-empty p{color:var(--c-text-2);font-size:15px;margin-bottom:16px;}

.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;}
.tag{
  font-size:13px;padding:3px 12px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);color:var(--c-text-2);background:var(--c-surface);
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);}
.share-row{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-top:28px;padding-top:20px;border-top:1px solid var(--c-line);
}
.share-row .back-link{font-size:14px;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.share-row .back-link:hover{gap:10px;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-md);border:1px solid var(--c-line-strong);
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-text-2);
  background:var(--c-surface);transition:.18s ease;
}
.icon-btn:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* ---------- 侧栏 ---------- */
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--sh-1);
}
.side-card h2{
  font-size:15px;font-weight:700;color:var(--c-secondary);
  padding-left:10px;position:relative;margin-bottom:14px;
}
.side-card h2::before{
  content:"";position:absolute;left:0;top:5px;width:4px;height:14px;border-radius:2px;background:var(--c-primary);
}
.toc a{
  display:block;font-size:14px;color:var(--c-text-2);
  padding:8px 0 8px 12px;border-left:2px solid var(--c-line);line-height:1.6;
}
.toc a:hover,.toc a.current{color:var(--c-primary);border-left-color:var(--c-primary);}
.hot-list li+li{border-top:1px solid var(--c-line);}
.hot-list a{
  display:flex;gap:10px;align-items:flex-start;
  padding:11px 0;font-size:14px;color:var(--c-text);line-height:1.6;
}
.hot-list a:hover{color:var(--c-primary);}
.hot-list .num{
  font-family:var(--font-num);font-size:13px;color:var(--c-text-3);
  flex:0 0 18px;padding-top:2px;
}
.hot-list li:nth-child(-n+3) .num{color:var(--c-primary);font-weight:700;}
.member-card{
  background:var(--c-primary-soft);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:20px;
}
.member-card h2{font-size:16px;font-weight:700;color:var(--c-secondary);}
.member-card p{font-size:14px;color:var(--c-text-2);line-height:1.8;margin:10px 0 16px;}
.member-card .btn{width:100%;}

/* ---------- 相关推荐 ---------- */
.related{padding:56px 0 72px;border-top:1px solid var(--c-line);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;
}
.section-head h2{
  font-size:24px;font-weight:700;color:var(--c-secondary);line-height:1.4;
}
.section-head p{font-size:14px;color:var(--c-text-2);margin-top:6px;}
.more-link{font-size:14px;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.more-link:hover{gap:10px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  position:relative;display:flex;flex-direction:column;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-2px);border-color:rgba(232,80,30,.25);box-shadow:var(--sh-2);}
.card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.card-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card .badge{
  align-self:flex-start;font-size:12px;padding:3px 10px;border-radius:var(--r-pill);
  color:var(--c-primary);background:rgba(232,80,30,.08);border:1px solid rgba(232,80,30,.2);
}
.card h3{
  font-size:16px;font-weight:600;line-height:1.6;color:var(--c-text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card p{
  font-size:14px;color:var(--c-text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:12px;border-top:1px dashed var(--c-line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--c-text-2);
}
.card-foot .arrow{color:var(--c-primary);}
.card h3 a::after{content:"";position:absolute;inset:0;}

/* ---------- 深色 CTA ---------- */
.cta-band{
  background:var(--c-secondary);border-radius:var(--r-xl);
  padding:56px;margin:0 0 72px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.04) 0 2px,transparent 2px 10px);
}
.cta-band h2{font-size:26px;font-weight:700;color:#fff;line-height:1.4;}
.cta-band ul{margin-top:16px;display:flex;flex-direction:column;gap:8px;}
.cta-band li{color:rgba(255,255,255,.72);font-size:15px;display:flex;gap:10px;align-items:flex-start;}
.cta-band li::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--c-accent);margin-top:9px;flex:0 0 6px;}
.cta-actions{flex:0 0 auto;text-align:right;}
.cta-actions .note{display:block;margin-top:12px;font-size:13px;color:rgba(255,255,255,.6);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-secondary);color:rgba(255,255,255,.7);margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;
  padding:56px 0 40px;border-top:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:15px;margin-bottom:14px;}
.site-footer p{font-size:14px;line-height:1.85;}
.footer-keyword{
  display:inline-block;margin-top:14px;font-size:13px;
  border:1px solid rgba(255,255,255,.24);border-radius:var(--r-pill);padding:3px 12px;color:rgba(255,255,255,.8);
}
.footer-col h3{font-size:14px;color:#fff;font-weight:700;margin-bottom:14px;}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.7);padding:5px 0;}
.footer-col a:hover{color:var(--c-accent);}
.footer-bottom{
  height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-wrap{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:32px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:991px){
  .search{display:none;}
  .burger{display:inline-flex;}
  .site-header.nav-open .tabs-inner{
    height:auto;flex-direction:column;align-items:stretch;gap:0;padding:8px 0;
  }
  .site-header.nav-open .tab{line-height:44px;}
  .site-header.nav-open .tab.active::after{display:none;}
  .article-wrap{grid-template-columns:minmax(0,1fr);padding:32px 0 56px;}
  .sidebar{position:static;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px;border-radius:var(--r-lg);}
  .cta-actions{text-align:left;width:100%;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .navbar{height:56px;gap:12px;}
  .brand-text{font-size:13px;}
  .btn{padding:0 14px;font-size:13px;}
  .nav-login{display:none;}
  .tabs-inner{gap:16px;}
  .tab{font-size:14px;}
  .article-content{font-size:16px;line-height:1.85;}
  .article-content h2{font-size:21px;margin-top:36px;}
  .article-content h3{font-size:18px;margin-top:26px;}
  .article-content table{display:block;overflow-x:auto;white-space:nowrap;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:28px;}
  .cta-band h2{font-size:21px;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:24px;padding:40px 0 28px;}
  .footer-bottom{height:auto;padding:16px 0;flex-direction:column;align-items:flex-start;}
  .section-head{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --c-primary:#E8501E;
  --c-primary-deep:#BC3A0E;
  --c-primary-soft:#FDEDE6;
  --c-secondary:#10403B;
  --c-secondary-soft:#E7F0EE;
  --c-accent:#FFC93C;
  --c-bg:#FBF9F6;
  --c-surface:#FFFFFF;
  --c-line:#E7E2DA;
  --c-line-strong:#D9D3CA;
  --c-text:#22262B;
  --c-text-2:#6B7078;
  --c-text-3:#9AA0A6;
  --c-success:#1F8A5B;
  --c-danger:#C4342B;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:ui-monospace,"Roboto Mono",monospace;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(34,38,43,.05);
  --sh-2:0 8px 24px -14px rgba(34,38,43,.18);
  --sh-3:0 18px 40px -22px rgba(232,80,30,.35);
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-text);}
h1{line-height:1.25;}
h2{line-height:1.35;color:var(--c-secondary);}
h3{line-height:1.45;font-weight:600;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.container{width:1200px;max-width:100%;margin:0 auto;padding:0 16px;}
@media (max-width:1199px){.container{width:960px;}}
@media (max-width:991px){.container{width:100%;padding:0 24px;}}
@media (max-width:767px){.container{width:100%;padding:0 16px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-deep);box-shadow:var(--sh-3);}
.btn-outline{border:1px solid var(--c-line-strong);color:var(--c-text);background:transparent;}
.btn-outline:hover{border-color:var(--c-primary);color:var(--c-primary);}
.btn-ghost{color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-soft);}
.btn-accent{background:var(--c-accent);color:#3A2A00;}
.btn-accent:hover{background:#F5BC27;}
.btn-sm{height:34px;padding:0 14px;font-size:13px;border-radius:var(--r-sm);}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;}

/* ---------- 徽章 / 标签 ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:13px;line-height:1.6;border:1px solid var(--c-line-strong);
  color:var(--c-text-2);background:var(--c-surface);
}
.pill-solid{background:var(--c-secondary-soft);border-color:transparent;color:var(--c-secondary);font-weight:600;}
.pill-accent{background:var(--c-accent);border-color:transparent;color:#3A2A00;font-weight:600;}
.pill-primary{background:var(--c-primary-soft);border-color:transparent;color:var(--c-primary-deep);font-weight:600;}

/* ---------- 头部 ---------- */
.site-header{position:sticky;top:0;z-index:50;background:var(--c-surface);border-bottom:1px solid var(--c-line);}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.navbar{display:flex;align-items:center;gap:24px;height:var(--nav-h);}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:var(--r-md);
  background:var(--c-primary);color:#fff;font-size:13px;font-weight:700;letter-spacing:.02em;
}
.brand-text{font-size:16px;font-weight:700;color:var(--c-text);white-space:nowrap;}
.search{position:relative;flex:1;max-width:420px;display:flex;align-items:center;}
.search-icon{position:absolute;left:14px;width:18px;height:18px;color:var(--c-text-3);pointer-events:none;}
.search input{
  width:100%;height:40px;padding:0 16px 0 42px;
  border:1px solid var(--c-line-strong);border-radius:var(--r-pill);
  background:var(--c-bg);font-size:14px;color:var(--c-text);
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.search input::placeholder{color:var(--c-text-3);}
.search input:focus{outline:none;border-color:var(--c-primary);background:var(--c-surface);box-shadow:0 0 0 2px rgba(232,80,30,.18);}
.nav-actions{display:flex;align-items:center;gap:16px;margin-left:auto;}
.nav-login{font-size:15px;color:var(--c-text);}
.nav-login:hover{color:var(--c-primary);}
.burger{
  display:none;width:40px;height:40px;border:1px solid var(--c-line-strong);border-radius:var(--r-sm);
  align-items:center;justify-content:center;
}
.burger span{display:block;width:18px;height:2px;background:var(--c-text);position:relative;}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-text);}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

/* ---------- 频道 Tabs ---------- */
.tabs{border-top:1px solid var(--c-line);background:var(--c-surface);}
.tabs-inner{
  display:flex;align-items:center;gap:28px;height:48px;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;
  -webkit-mask-image:linear-gradient(to right,#000 calc(100% - 24px),transparent);
  mask-image:linear-gradient(to right,#000 calc(100% - 24px),transparent);
}
.tabs-inner::-webkit-scrollbar{display:none;}
.tab{
  position:relative;display:inline-flex;align-items:center;height:100%;
  font-size:15px;color:var(--c-text-2);white-space:nowrap;flex-shrink:0;
  transition:color .18s ease;
}
.tab:hover{color:var(--c-text);}
.tab.active{color:var(--c-text);font-weight:600;}
.tab.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-primary);border-radius:2px;
}

/* ---------- 移动端抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(34,38,43,.45);opacity:0;visibility:hidden;
  transition:opacity .22s ease,visibility .22s ease;z-index:60;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:290px;max-width:86vw;background:var(--c-surface);
  transform:translateX(100%);transition:transform .24s cubic-bezier(.2,.7,.3,1);z-index:61;
  padding:20px;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.drawer-close{width:36px;height:36px;border:1px solid var(--c-line-strong);border-radius:var(--r-sm);font-size:18px;line-height:1;}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:20px;}
.drawer-nav a{padding:12px 10px;border-radius:var(--r-sm);font-size:15px;color:var(--c-text-2);}
.drawer-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.drawer-nav a.active{background:var(--c-primary);color:#fff;font-weight:600;}
.drawer-cta{display:flex;flex-direction:column;gap:10px;}
.drawer-cta .btn{width:100%;}

@media (max-width:991px){
  .search{display:none;}
  .nav-login{display:none;}
  .burger{display:inline-flex;}
  .navbar{height:56px;}
  .brand-text{font-size:15px;}
}
@media (max-width:767px){
  .tabs-inner{gap:10px;height:52px;}
  .tab{padding:6px 14px;height:34px;border:1px solid var(--c-line-strong);border-radius:var(--r-pill);background:var(--c-surface);}
  .tab.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
  .tab.active::after{display:none;}
}

/* ---------- 页面头 ---------- */
.page-head{
  padding:40px 0 32px;background:var(--c-surface);border-bottom:1px solid var(--c-line);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-2);margin-bottom:20px;}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:var(--c-text-3);}
.breadcrumb .current{color:var(--c-text);}
.page-head-top{display:flex;align-items:flex-start;gap:24px;justify-content:space-between;}
.page-head h1{font-size:clamp(28px,3.6vw,38px);margin-bottom:14px;}
.page-head h1 span{color:var(--c-primary);}
.page-lead{font-size:16px;line-height:1.85;color:var(--c-text-2);max-width:760px;}

/* ---------- 快筛条 ---------- */
.quickbar{padding:22px 0;background:var(--c-bg);border-bottom:1px solid var(--c-line);}
.quickbar-inner{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border:1px solid var(--c-line-strong);border-radius:var(--r-pill);
  font-size:14px;color:var(--c-text-2);background:var(--c-surface);
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);}
.chip.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600;}

/* ---------- 板块 ---------- */
.section{padding:72px 0;}
.section.alt{background:var(--c-surface);}
.section-head{margin-bottom:36px;max-width:760px;}
.section-head h2{font-size:28px;display:flex;align-items:center;gap:12px;margin-bottom:12px;}
.section-head h2::before{content:"";width:4px;height:20px;border-radius:2px;background:var(--c-primary);}
.section-head p{font-size:15px;color:var(--c-text-2);line-height:1.85;}

/* ---------- 入口大卡 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.entry-card{
  display:flex;gap:22px;align-items:stretch;min-height:220px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(232,80,30,.25);}
.entry-thumb{
  flex:0 0 40%;border-radius:var(--r-md);overflow:hidden;position:relative;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.6);
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;border-radius:var(--r-md);}
.entry-body{flex:1;display:flex;flex-direction:column;gap:12px;min-width:0;}
.entry-body h3{font-size:20px;}
.entry-points{display:flex;flex-direction:column;gap:8px;}
.entry-points li{position:relative;padding-left:16px;font-size:14px;line-height:1.7;color:var(--c-text-2);}
.entry-points li::before{
  content:"";position:absolute;left:0;top:8px;width:6px;height:6px;border-radius:2px;background:var(--c-primary);
}
.entry-body .btn{margin-top:auto;align-self:flex-start;}

/* ---------- 流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.flow-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease;
}
.flow-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.flow-num{font-family:var(--font-num);font-size:30px;font-weight:700;color:rgba(232,80,30,.22);line-height:1;margin-bottom:12px;}
.flow-item h3{font-size:18px;margin-bottom:10px;}
.flow-item p{font-size:14px;line-height:1.8;color:var(--c-text-2);}

/* ---------- 提示列表 ---------- */
.tips{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.tip{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:18px 20px;transition:border-color .18s ease,box-shadow .18s ease;
}
.tip:hover{border-color:rgba(232,80,30,.25);box-shadow:var(--sh-1);}
.tip-icon{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:700;
}
.tip.warn .tip-icon{background:var(--c-danger);}
.tip h3{font-size:16px;margin-bottom:6px;}
.tip p{font-size:14px;line-height:1.75;color:var(--c-text-2);}

/* ---------- 数据带 ---------- */
.stat-band{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  display:grid;grid-template-columns:repeat(3,1fr);box-shadow:var(--sh-1);overflow:hidden;
}
.stat{padding:26px 24px;text-align:left;}
.stat + .stat{border-left:1px solid var(--c-line);}
.stat-num{font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--c-secondary);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-label{font-size:13px;color:var(--c-text-2);margin-top:6px;}

/* ---------- 深色尾部横条 ---------- */
.tail-band{
  background:var(--c-secondary);border-radius:var(--r-lg);padding:32px;
  display:flex;align-items:center;gap:24px;justify-content:space-between;
  position:relative;overflow:hidden;
}
.tail-band::after{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.04) 0 2px,transparent 2px 10px);
  pointer-events:none;
}
.tail-band .tail-text{position:relative;z-index:1;}
.tail-band h2{color:#fff;font-size:22px;margin-bottom:8px;}
.tail-band p{color:rgba(255,255,255,.7);font-size:14px;max-width:640px;}
.tail-band .btn{position:relative;z-index:1;flex-shrink:0;}

/* ---------- 图文引导 ---------- */
.media-block{
  display:grid;grid-template-columns:1.05fr 1fr;gap:40px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
}
.media-figure{position:relative;height:100%;min-height:280px;}
.media-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10;}
.media-body{padding:36px 40px 36px 0;}
.media-body h2{font-size:24px;margin-bottom:14px;}
.media-body p{font-size:15px;line-height:1.9;color:var(--c-text-2);margin-bottom:12px;}
.media-body .btn{margin-top:10px;}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq-item{border:1px solid var(--c-line);border-radius:var(--r-md);background:var(--c-surface);overflow:hidden;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:52px;padding:14px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--c-text);
}
.faq-icon{
  flex:0 0 20px;width:20px;height:20px;position:relative;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),color .2s ease;color:var(--c-text-3);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item.open .faq-icon{transform:rotate(45deg);color:var(--c-primary);}
.faq-a{
  display:none;border-left:3px solid var(--c-primary);padding:4px 20px 18px 20px;
  font-size:15px;line-height:1.85;color:var(--c-text-2);
}
.faq-item.open .faq-a{display:block;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-secondary);color:rgba(255,255,255,.7);margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding:56px 0 40px;border-top:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px;margin-bottom:14px;}
.footer-brand .brand-mark{background:var(--c-primary);}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);margin-bottom:14px;}
.footer-keyword{
  display:inline-block;font-size:13px;color:rgba(255,255,255,.6);
  border:1px solid rgba(255,255,255,.2);border-radius:var(--r-pill);padding:4px 12px;
}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.7);padding:5px 0;}
.footer-col a:hover{color:var(--c-accent);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  min-height:56px;padding:12px 0;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .entry-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991px){
  .section{padding:56px 0;}
  .page-head-top{flex-direction:column;gap:16px;}
  .entry-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr 1fr;}
  .tips{grid-template-columns:1fr;}
  .media-block{grid-template-columns:1fr;}
  .media-body{padding:28px 24px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .section{padding:44px 0;}
  .entry-card{flex-direction:column;}
  .entry-thumb{flex:none;width:100%;}
  .entry-thumb img{aspect-ratio:16/9;}
  .entry-body .btn{width:100%;}
  .flow{grid-template-columns:1fr;}
  .stat-band{grid-template-columns:1fr;}
  .stat + .stat{border-left:0;border-top:1px solid var(--c-line);}
  .tail-band{flex-direction:column;align-items:flex-start;padding:26px 22px;}
  .tail-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .section-head h2{font-size:24px;}
  .page-head h1{font-size:28px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#E8501E;
  --c-primary-deep:#BC3A0E;
  --c-primary-soft:#FDEDE6;
  --c-secondary:#10403B;
  --c-secondary-soft:#E7F0EE;
  --c-accent:#FFC93C;
  --c-bg:#FBF9F6;
  --c-surface:#FFFFFF;
  --c-line:#E7E2DA;
  --c-line-strong:#D9D3CA;
  --c-text:#22262B;
  --c-text-2:#6B7078;
  --c-text-3:#9AA0A6;
  --c-success:#1F8A5B;
  --c-danger:#C4342B;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:ui-monospace,"Roboto Mono",monospace;
  --r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:20px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(34,38,43,.05);
  --sh-2:0 8px 24px -14px rgba(34,38,43,.18);
  --sh-3:0 18px 40px -22px rgba(232,80,30,.35);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--c-bg);color:var(--c-text);
  font-family:var(--font-sans);font-size:16px;line-height:1.85;
  letter-spacing:.01em;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input{font:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--c-text);}
h1{font-size:clamp(28px,4vw,40px);line-height:1.3;}
h2{font-size:24px;line-height:1.4;color:var(--c-secondary);}
h3{font-size:18px;line-height:1.45;font-weight:600;}
p{margin:0 0 1.4em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.navbar{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:var(--r-md);
  background:var(--c-primary);color:#fff;font-weight:700;font-size:14px;
  letter-spacing:.04em;
}
.brand-text{font-size:16px;font-weight:700;color:var(--c-text);white-space:nowrap;}
.search{
  position:relative;flex:1 1 auto;max-width:420px;margin:0 auto;
}
.search-icon{
  position:absolute;left:14px;top:50%;transform:translateY(-50%);
  width:17px;height:17px;color:var(--c-text-3);pointer-events:none;
}
.search input{
  width:100%;height:40px;border-radius:var(--r-pill);
  border:1px solid var(--c-line-strong);background:var(--c-bg);
  padding:0 16px 0 40px;font-size:14px;color:var(--c-text);
  outline:none;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.search input::placeholder{color:var(--c-text-3);}
.search input:focus{
  border-color:var(--c-primary);background:var(--c-surface);
  box-shadow:0 0 0 2px rgba(232,80,30,.18);
}
.nav-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.nav-login{font-size:15px;color:var(--c-text);}
.nav-login:hover{color:var(--c-primary);}
.burger{
  display:none;width:40px;height:40px;border-radius:var(--r-md);
  border:1px solid var(--c-line-strong);position:relative;background:var(--c-surface);
}
.burger span,.burger span::before,.burger span::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:18px;height:2px;background:var(--c-text);border-radius:2px;content:"";
  transition:transform .2s ease,opacity .2s ease;
}
.burger span{top:50%;margin-top:-1px;}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;white-space:nowrap;border:1px solid transparent;
  transition:transform .18s ease,background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-deep);transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--c-text);border-color:var(--c-line-strong);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-accent{background:var(--c-accent);color:#3A2B00;}
.btn-accent:hover{background:#F2B921;transform:translateY(-1px);}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-sm{height:34px;padding:0 14px;font-size:13px;border-radius:var(--r-sm);}
.btn-block{width:100%;}

/* tabs */
.tabs{background:var(--c-surface);border-bottom:1px solid var(--c-line);}
.tabs-inner{
  display:flex;align-items:center;gap:28px;height:48px;
  overflow-x:auto;scrollbar-width:none;
}
.tabs-inner::-webkit-scrollbar{display:none;}
.tab{
  position:relative;flex:0 0 auto;font-size:15px;color:var(--c-text-2);
  line-height:48px;white-space:nowrap;font-weight:500;
}
.tab:hover{color:var(--c-text);}
.tab.active{color:var(--c-text);font-weight:600;}
.tab.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--c-primary);border-radius:2px;
}

/* mobile panel */
.mobile-panel{
  display:none;background:var(--c-surface);border-bottom:1px solid var(--c-line);
  padding:16px 24px 20px;
}
.mobile-panel.open{display:block;}
.mobile-panel a{
  display:block;padding:11px 0;font-size:15px;color:var(--c-text);
  border-bottom:1px solid var(--c-line);
}
.mobile-panel a:last-of-type{border-bottom:none;}
.mobile-panel .panel-actions{display:flex;gap:12px;margin-top:14px;}

/* ---------- page head ---------- */
.page-head{
  position:relative;overflow:hidden;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--c-line);
}
.page-head::before{
  content:"";position:absolute;inset:0;
  background:rgba(251,249,246,.93);
}
.page-head .container{position:relative;z-index:1;padding-top:44px;padding-bottom:52px;}
.breadcrumb{
  font-size:13px;color:var(--c-text-2);display:flex;flex-wrap:wrap;
  align-items:center;gap:6px;margin-bottom:18px;
}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .current{color:var(--c-text);}
.page-head-inner{
  display:flex;align-items:flex-end;justify-content:space-between;gap:32px;
}
.page-head h1{max-width:800px;}
.page-lead{
  margin:16px 0 0;font-size:16px;line-height:1.9;color:var(--c-text-2);max-width:760px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:var(--r-pill);
  font-size:13px;padding:4px 12px;white-space:nowrap;line-height:1.6;
}
.badge-accent{background:var(--c-accent);color:#3A2B00;font-weight:600;}
.badge-outline{border:1px solid var(--c-line-strong);color:var(--c-text-2);background:var(--c-surface);}
.badge-soft{background:var(--c-primary-soft);color:var(--c-primary-deep);font-weight:600;}

/* ---------- sections ---------- */
.section{padding:72px 0;}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{display:flex;align-items:center;gap:12px;}
.section-head h2::before{
  content:"";width:4px;height:18px;border-radius:2px;background:var(--c-primary);flex:0 0 auto;
}
.section-head p{margin:12px 0 0;color:var(--c-text-2);font-size:16px;}

/* ---------- feature rows ---------- */
.feature-list{display:flex;flex-direction:column;}
.feature-row{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:48px;align-items:center;padding:56px 0;
  border-bottom:1px solid var(--c-line);
}
.feature-row:first-child{padding-top:0;}
.feature-row:last-child{border-bottom:none;padding-bottom:0;}
.feature-row.reverse .feature-media{order:2;}
.feature-row.reverse .feature-body{order:1;}
.feature-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);}
.feature-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.6);
}
.feature-media::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-lg);
  border:1px solid rgba(255,255,255,.6);pointer-events:none;
}
.feature-body .num{
  display:block;font-family:var(--font-num);font-size:38px;font-weight:700;
  color:rgba(232,80,30,.28);line-height:1;margin-bottom:10px;letter-spacing:.02em;
}
.feature-body h2{margin-bottom:16px;}
.feature-body p{font-size:17px;line-height:1.9;color:var(--c-text-2);margin-bottom:1.1em;}
.feature-body p:last-of-type{margin-bottom:20px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--c-primary);
}
.text-link .arrow{transition:transform .18s ease;}
.text-link:hover{color:var(--c-primary-deep);}
.text-link:hover .arrow{transform:translateX(3px);}
.point-list{margin:0 0 20px;}
.point-list li{
  position:relative;padding-left:18px;font-size:15px;color:var(--c-text-2);
  margin-bottom:8px;line-height:1.8;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;
  border-radius:2px;background:var(--c-primary);
}

/* ---------- timeline ---------- */
.timeline-wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:48px;align-items:start;}
.timeline{position:relative;padding-left:26px;}
.timeline::before{
  content:"";position:absolute;left:5px;top:6px;bottom:6px;width:2px;background:var(--c-line);
}
.timeline li{position:relative;padding-bottom:28px;}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{
  content:"";position:absolute;left:-26px;top:6px;width:12px;height:12px;
  border-radius:50%;background:var(--c-primary);
  box-shadow:0 0 0 3px var(--c-bg);
}
.timeline h3{font-size:16px;font-weight:600;color:var(--c-text);margin-bottom:4px;}
.timeline p{margin:0;font-size:14px;color:var(--c-text-2);line-height:1.8;}
.note-card{
  background:var(--c-secondary-soft);border:1px solid #D3E3DF;
  border-radius:var(--r-lg);padding:24px;
}
.note-card h3{color:var(--c-secondary);margin-bottom:12px;}
.note-card p{font-size:15px;color:var(--c-text-2);margin-bottom:0;line-height:1.85;}
.note-card ul{margin-top:14px;}
.note-card li{
  font-size:14px;color:var(--c-text-2);padding:8px 0;
  border-bottom:1px solid rgba(16,64,59,.1);
}
.note-card li:last-child{border-bottom:none;}

/* ---------- compare strip ---------- */
.mini-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.mini-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(232,80,30,.25);}
.mini-card .icon-dot{
  width:36px;height:36px;border-radius:var(--r-md);background:var(--c-primary-soft);
  color:var(--c-primary);display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-weight:700;font-size:15px;margin-bottom:16px;
}
.mini-card h3{margin-bottom:10px;}
.mini-card p{margin:0;font-size:14px;color:var(--c-text-2);line-height:1.8;}

/* ---------- faq ---------- */
.faq-list{max-width:860px;margin:0 auto;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item[open]{border-color:rgba(232,80,30,.3);box-shadow:var(--sh-1);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:52px;padding:12px 18px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--c-text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform .2s cubic-bezier(.2,.7,.3,1);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-text-3);border-radius:2px;
  transition:background .2s ease;
}
.faq-icon::before{left:5px;right:5px;top:10px;height:2px;}
.faq-icon::after{top:5px;bottom:5px;left:10px;width:2px;}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-item[open] .faq-icon::before,.faq-item[open] .faq-icon::after{background:var(--c-primary);}
.faq-answer{
  border-left:3px solid var(--c-primary);margin:0 18px 16px;
  padding:14px 16px;background:var(--c-primary-soft);border-radius:0 var(--r-sm) var(--r-sm) 0;
  font-size:15px;line-height:1.85;color:var(--c-text-2);
}

/* ---------- cta ---------- */
.cta-block{
  background:var(--c-secondary);border-radius:var(--r-xl);
  padding:56px;color:#fff;position:relative;overflow:hidden;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.04) 0 2px,transparent 2px 12px);
}
.cta-inner{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:40px;align-items:center;position:relative;z-index:1;}
.cta-block h2{color:#fff;font-size:26px;margin-bottom:16px;}
.cta-block ul li{
  position:relative;padding-left:18px;font-size:15px;color:rgba(255,255,255,.72);
  margin-bottom:8px;
}
.cta-block ul li::before{
  content:"";position:absolute;left:0;top:.7em;width:6px;height:6px;border-radius:2px;background:var(--c-accent);
}
.cta-side{display:flex;flex-direction:column;align-items:flex-start;gap:12px;}
.cta-side .hint{font-size:13px;color:rgba(255,255,255,.6);}

/* ---------- footer ---------- */
.site-footer{background:var(--c-secondary);color:rgba(255,255,255,.72);margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding:64px 0 40px;border-top:1px solid rgba(255,255,255,.12);
}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);margin:14px 0 16px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px;}
.footer-brand .brand-mark{background:var(--c-primary);}
.footer-keyword{
  display:inline-block;font-size:13px;padding:4px 12px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.22);color:rgba(255,255,255,.8);
}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.7);padding:6px 0;}
.footer-col a:hover{color:var(--c-accent);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  min-height:56px;padding:12px 0;font-size:13px;color:rgba(255,255,255,.6);
  border-top:1px solid rgba(255,255,255,.12);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{max-width:960px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
}
@media (max-width:991px){
  .search{display:none;}
  .burger{display:block;}
  .nav-actions .btn-primary{display:none;}
  .nav-actions .nav-login{display:none;}
  .tabs-inner{gap:22px;}
  .page-head .container{padding-top:32px;padding-bottom:40px;}
  .feature-row{grid-template-columns:minmax(0,1fr);gap:28px;padding:44px 0;}
  .feature-row.reverse .feature-media{order:0;}
  .feature-row.reverse .feature-body{order:1;}
  .timeline-wrap{grid-template-columns:minmax(0,1fr);gap:32px;}
  .mini-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-block{padding:40px;}
  .cta-inner{grid-template-columns:minmax(0,1fr);gap:28px;}
  .section{padding:56px 0;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  body{font-size:16px;}
  .navbar{height:56px;gap:12px;}
  .brand-text{font-size:14px;white-space:normal;line-height:1.3;}
  .tabs-inner{height:auto;padding:10px 0;gap:10px;}
  .tab{
    line-height:1;padding:7px 14px;border-radius:var(--r-pill);
    border:1px solid var(--c-line-strong);font-size:13px;
  }
  .tab.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
  .tab.active::after{display:none;}
  .page-head-inner{flex-direction:column;align-items:flex-start;gap:16px;}
  h1{font-size:28px;}
  h2{font-size:21px;}
  .section{padding:44px 0;}
  .section-head{margin-bottom:28px;}
  .feature-body p{font-size:16px;}
  .mini-grid{grid-template-columns:minmax(0,1fr);}
  .cta-block{padding:28px;border-radius:var(--r-lg);}
  .cta-block h2{font-size:22px;}
  .cta-side{width:100%;}
  .cta-side .btn{width:100%;}
  .faq-item summary{font-size:15px;padding:12px 14px;}
  .faq-answer{margin:0 14px 14px;font-size:14px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;padding:40px 0 28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;justify-content:center;gap:6px;}
}
@media (max-width:520px){
  .brand-mark{width:30px;height:30px;font-size:13px;}
  .feature-media img{aspect-ratio:16/10;}
  .mini-card{padding:20px;}
}

/* roulang page: category3 */
:root{
  --c-primary:#E8501E;
  --c-primary-deep:#BC3A0E;
  --c-primary-soft:#FDEDE6;
  --c-secondary:#10403B;
  --c-secondary-soft:#E7F0EE;
  --c-accent:#FFC93C;
  --c-bg:#FBF9F6;
  --c-surface:#FFFFFF;
  --c-line:#E7E2DA;
  --c-line-strong:#D9D3CA;
  --c-text:#22262B;
  --c-text-2:#6B7078;
  --c-text-3:#9AA0A6;
  --c-success:#1F8A5B;
  --c-danger:#C4342B;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:ui-monospace,"Roboto Mono",monospace;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(34,38,43,.05);
  --sh-2:0 8px 24px -14px rgba(34,38,43,.18);
  --sh-3:0 18px 40px -22px rgba(232,80,30,.35);
  --header-h:64px;
  --tabs-h:48px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-text);
  background:var(--c-bg);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
input{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:1200px;max-width:calc(100% - 32px);margin:0 auto}
@media (max-width:1199px){.container{width:960px;max-width:calc(100% - 48px)}}
@media (max-width:991px){.container{width:100%;max-width:calc(100% - 48px)}}
@media (max-width:767px){.container{width:100%;max-width:calc(100% - 32px)}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border:1px solid transparent;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;transition:all .18s ease;white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-deep);transform:translateY(-1px);box-shadow:var(--sh-3)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:transparent;border-color:var(--c-line-strong);color:var(--c-text)}
.btn-outline:hover{border-color:var(--c-primary);color:var(--c-primary)}
.btn-accent{background:var(--c-accent);color:#3A2A00}
.btn-accent:hover{background:#F5BA25;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:transparent}
.btn-ghost:hover{background:var(--c-primary-soft)}
.btn-sm{height:34px;padding:0 14px;font-size:13px;border-radius:var(--r-sm)}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.navbar{display:flex;align-items:center;gap:24px;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand-mark{
  width:36px;height:36px;border-radius:var(--r-md);background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:14px;font-weight:700;letter-spacing:.02em;
}
.brand-text{font-size:17px;font-weight:700;color:var(--c-text);white-space:nowrap}
.search{
  position:relative;flex:1;max-width:420px;margin:0 auto;
}
.search input{
  width:100%;height:40px;border-radius:var(--r-pill);border:1px solid var(--c-line-strong);
  background:var(--c-bg);padding:0 16px 0 40px;font-size:14px;color:var(--c-text);
  transition:border-color .18s ease, box-shadow .18s ease;
}
.search input::placeholder{color:var(--c-text-3)}
.search input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(232,80,30,.18);background:#fff}
.search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--c-text-3)}
.nav-actions{display:flex;align-items:center;gap:16px;flex:none;margin-left:auto}
.nav-login{font-size:15px;color:var(--c-text);font-weight:500}
.nav-login:hover{color:var(--c-primary)}
.burger{
  display:none;width:40px;height:40px;border:1px solid var(--c-line);border-radius:var(--r-md);
  background:var(--c-surface);position:relative;
}
.burger span,.burger span::before,.burger span::after{
  position:absolute;left:50%;width:16px;height:2px;background:var(--c-text);border-radius:2px;
  transform:translateX(-50%);content:"";
}
.burger span{top:19px}
.burger span::before{top:-5px}
.burger span::after{top:5px}

.tabs{border-top:1px solid var(--c-line);background:var(--c-surface)}
.tabs-inner{
  display:flex;gap:26px;height:var(--tabs-h);align-items:stretch;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.tabs-inner::-webkit-scrollbar{display:none}
.tab{
  position:relative;display:inline-flex;align-items:center;font-size:15px;color:var(--c-text-2);
  white-space:nowrap;transition:color .18s ease;
}
.tab:hover{color:var(--c-text)}
.tab.active{color:var(--c-text);font-weight:600}
.tab.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-primary);border-radius:2px;
}

/* ---------- 页头 ---------- */
.page-head{padding:44px 0 32px;background:var(--c-surface);border-bottom:1px solid var(--c-line)}
.crumb{font-size:13px;color:var(--c-text-2);display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:16px}
.crumb a:hover{color:var(--c-primary)}
.crumb span.sep{color:var(--c-text-3)}
.crumb .now{color:var(--c-text)}
.page-head-row{display:flex;align-items:flex-start;gap:28px;justify-content:space-between}
h1{
  font-size:clamp(28px,3.6vw,38px);line-height:1.3;font-weight:700;color:var(--c-text);
  max-width:820px;letter-spacing:.005em;
}
.lead{margin-top:14px;font-size:16px;line-height:1.85;color:var(--c-text-2);max-width:760px}
.head-badge{
  flex:none;display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary-deep);font-size:13px;font-weight:600;
}
.head-badge i{width:8px;height:8px;border-radius:50%;background:var(--c-primary);display:inline-block}
.head-stats{display:flex;gap:32px;margin-top:24px;flex-wrap:wrap}
.head-stat{padding-right:32px;border-right:1px solid var(--c-line)}
.head-stat:last-child{border-right:none;padding-right:0}
.head-stat strong{display:block;font-family:var(--font-num);font-size:24px;font-weight:700;color:var(--c-secondary);font-variant-numeric:tabular-nums}
.head-stat span{font-size:13px;color:var(--c-text-2)}

/* ---------- 工具条 ---------- */
.toolbar-wrap{
  position:sticky;top:var(--header-h);z-index:20;background:var(--c-bg);
  padding:14px 0;border-bottom:1px solid var(--c-line);
  scroll-margin-top:130px;
}
.toolbar{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.toolbar .search{max-width:360px;flex:1;margin:0}
.tool-filters{display:flex;gap:10px;flex-wrap:wrap;margin-left:auto}
.pill{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid var(--c-line-strong);background:var(--c-surface);color:var(--c-text-2);
  font-size:13px;font-weight:500;transition:all .18s ease;
}
.pill:hover{border-color:var(--c-primary);color:var(--c-primary)}
.pill.on{background:var(--c-primary);border-color:var(--c-primary);color:#fff}

/* ---------- 板块通用 ---------- */
.section{padding:64px 0;scroll-margin-top:130px}
.section.alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap}
.section-head h2{
  font-size:clamp(22px,2.4vw,28px);font-weight:700;color:var(--c-secondary);line-height:1.4;
  display:flex;align-items:center;gap:12px;
}
.section-head h2::before{content:"";width:4px;height:20px;border-radius:2px;background:var(--c-primary);display:inline-block}
.section-head p{font-size:14px;color:var(--c-text-2);margin-top:8px}
.more-link{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.more-link svg{width:14px;height:14px;transition:transform .18s ease}
.more-link:hover svg{transform:translateX(3px)}

/* ---------- 高密度榜单 ---------- */
.rank-list{border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;background:var(--c-surface)}
.rank-row{
  display:flex;align-items:center;gap:18px;padding:14px 20px;min-height:72px;
  border-bottom:1px solid var(--c-line);transition:background .18s ease;
}
.rank-row:last-child{border-bottom:none}
.rank-row:nth-child(odd){background:var(--c-bg)}
.rank-row:nth-child(even){background:var(--c-surface)}
.rank-row:hover{background:var(--c-primary-soft)}
.rank-no{
  flex:none;width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:15px;font-weight:700;color:var(--c-text-3);
}
.rank-row:nth-child(-n+3) .rank-no{background:var(--c-primary);color:#fff;border-radius:var(--r-sm);font-size:15px}
.rank-thumb{
  flex:none;width:72px;height:72px;border-radius:var(--r-sm);overflow:hidden;
  border:1px solid var(--c-line);box-shadow:inset 0 0 0 1px rgba(255,255,255,.6);
}
.rank-thumb img{width:100%;height:100%;object-fit:cover}
.rank-body{flex:1;min-width:0}
.rank-title{
  font-size:16px;font-weight:600;color:var(--c-text);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.rank-desc{
  font-size:13px;color:var(--c-text-2);margin-top:4px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.rank-tags{display:flex;gap:8px;flex:none}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-pill);
  border:1px solid var(--c-line-strong);font-size:12px;color:var(--c-text-2);background:var(--c-surface);
}
.tag.solid{background:var(--c-secondary-soft);border-color:transparent;color:var(--c-secondary)}
.rank-action{flex:none}

/* ---------- 信息表格 ---------- */
.table-wrap{
  border:1px solid var(--c-line);border-radius:var(--r-md);overflow:auto;background:var(--c-surface);
  box-shadow:var(--sh-1);
}
table{width:100%;border-collapse:collapse;min-width:620px;font-size:14px}
thead th{
  background:var(--c-secondary);color:#fff;font-weight:600;font-size:13px;text-align:left;
  padding:14px 18px;white-space:nowrap;
}
tbody td{padding:14px 18px;border-bottom:1px solid var(--c-line);color:var(--c-text-2)}
tbody td:first-child{color:var(--c-text);font-weight:600}
tbody tr:nth-child(even){background:#FCFBF9}
tbody tr:last-child td{border-bottom:none}
tbody tr:hover{background:var(--c-primary-soft)}
.table-note{font-size:13px;color:var(--c-text-3);margin-top:12px}

/* ---------- 说明卡 ---------- */
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.info-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);transition:all .18s ease;
}
.info-card:hover{transform:translateY(-2px);border-color:rgba(232,80,30,.25);box-shadow:var(--sh-2)}
.info-card h3{font-size:17px;font-weight:600;color:var(--c-text);margin-bottom:10px}
.info-card p{font-size:14px;line-height:1.85;color:var(--c-text-2)}
.info-card ul{margin-top:12px;display:grid;gap:8px}
.info-card li{display:flex;gap:10px;font-size:14px;color:var(--c-text-2);line-height:1.7}
.info-card li::before{
  content:"";flex:none;width:6px;height:6px;border-radius:2px;background:var(--c-primary);margin-top:9px;
}
.info-num{
  font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--c-primary);
  letter-spacing:.08em;margin-bottom:10px;display:block;
}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;transition:border-color .18s ease;
}
.faq-item:hover{border-color:var(--c-line-strong)}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:52px;padding:12px 20px;font-size:16px;font-weight:600;color:var(--c-text);cursor:pointer;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:none;font-size:22px;font-weight:400;color:var(--c-text-3);line-height:1;
  transition:transform .2s cubic-bezier(.2,.7,.3,1), color .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--c-primary)}
.faq-item[open] summary{color:var(--c-primary-deep)}
.faq-body{
  padding:0 20px 18px;font-size:15px;line-height:1.85;color:var(--c-text-2);
  border-left:3px solid var(--c-primary);margin-left:20px;padding-left:16px;
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-secondary);border-radius:var(--r-xl);padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.04) 0 2px,transparent 2px 12px);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.4}
.cta-band p{color:rgba(255,255,255,.7);font-size:15px;margin-top:10px;max-width:620px}
.cta-side{flex:none;text-align:right}
.cta-side small{display:block;color:rgba(255,255,255,.6);font-size:13px;margin-top:10px}

/* ---------- 页面导览 ---------- */
.quick-jump{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.quick-jump a{
  display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid var(--c-line-strong);background:var(--c-surface);font-size:13px;color:var(--c-text-2);
  transition:all .18s ease;
}
.quick-jump a:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-secondary);color:rgba(255,255,255,.7);margin-top:72px}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;
  padding:56px 0 40px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff;font-weight:700;font-size:16px}
.footer-brand .brand-mark{background:var(--c-primary);color:#fff}
.site-footer p{font-size:14px;line-height:1.85;max-width:420px}
.footer-keyword{
  display:inline-block;margin-top:16px;padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.08);font-size:13px;color:rgba(255,255,255,.8);
}
.footer-col h3{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.7);margin-bottom:10px;transition:color .18s ease}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:rgba(255,255,255,.6);flex-wrap:wrap;padding:12px 0;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .info-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr;gap:32px}
}
@media (max-width:991px){
  :root{--header-h:56px}
  .search{display:none}
  .nav-login{display:none}
  .burger{display:block}
  .navbar{gap:14px}
  .rank-thumb{width:56px;height:56px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px}
  .cta-side{text-align:left;width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .page-head{padding:28px 0 24px}
  .page-head-row{flex-direction:column;gap:16px}
  .head-stats{gap:18px}
  .head-stat{padding-right:18px}
  .head-stat strong{font-size:20px}
  .toolbar .search{max-width:100%;display:block}
  .tool-filters{margin-left:0;width:100%}
  .rank-row{flex-wrap:wrap;gap:12px;padding:14px 16px}
  .rank-tags{width:100%;order:4}
  .rank-action{order:5;width:100%}
  .rank-action .btn{width:100%}
  .rank-thumb{width:52px;height:52px}
  .info-grid{grid-template-columns:1fr}
  .section{padding:44px 0}
  .footer-grid{grid-template-columns:1fr;padding:40px 0 28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .faq-item summary{font-size:15px;padding:12px 16px}
  .faq-body{margin-left:16px;padding:0 16px 16px}
  .cta-band{padding:28px 22px;border-radius:var(--r-lg)}
}
@media (max-width:519px){
  .rank-desc{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
  h1{font-size:26px}
}

/* roulang page: category4 */
:root{
  --c-primary:#E8501E;
  --c-primary-deep:#BC3A0E;
  --c-primary-soft:#FDEDE6;
  --c-secondary:#10403B;
  --c-secondary-soft:#E7F0EE;
  --c-accent:#FFC93C;
  --c-bg:#FBF9F6;
  --c-surface:#FFFFFF;
  --c-line:#E7E2DA;
  --c-line-strong:#D9D3CA;
  --c-text:#22262B;
  --c-text-2:#6B7078;
  --c-text-3:#9AA0A6;
  --c-success:#1F8A5B;
  --c-danger:#C4342B;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:ui-monospace,"Roboto Mono",monospace;
  --r-sm:8px;--r-md:12px;--r-lg:16px;--r-xl:20px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(34,38,43,.05);
  --sh-2:0 8px 24px -14px rgba(34,38,43,.18);
  --sh-3:0 18px 40px -22px rgba(232,80,30,.35);
  --nav-h:112px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:120px}
body{
  margin:0;background:var(--c-bg);color:var(--c-text);
  font-family:var(--font-sans);font-size:16px;line-height:1.85;letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary)}
button,input{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section--tight{padding:52px 0}
.section--surface{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.scroll-anchor{scroll-margin-top:calc(var(--nav-h) + 24px)}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(251,249,246,.96);border-bottom:1px solid var(--c-line)}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.navbar{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;font-weight:700;color:var(--c-text)}
.brand:hover{color:var(--c-text)}
.brand-mark{
  width:32px;height:32px;border-radius:var(--r-md);background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:13px;letter-spacing:.02em;font-weight:700;
}
.brand-text{font-size:16px;white-space:nowrap}
.search{position:relative;flex:1 1 auto;max-width:420px}
.search input{
  width:100%;height:40px;border-radius:var(--r-pill);border:1px solid var(--c-line-strong);
  background:var(--c-surface);padding:0 16px 0 40px;font-size:14px;color:var(--c-text);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search input::placeholder{color:var(--c-text-3)}
.search input:focus{border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(232,80,30,.18);outline:none}
.search-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);width:17px;height:17px;color:var(--c-text-3);pointer-events:none}
.nav-actions{display:flex;align-items:center;gap:16px;margin-left:auto}
.nav-login{font-size:14px;color:var(--c-text);font-weight:500}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:42px;padding:0 20px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-outline{border:1px solid var(--c-line-strong);color:var(--c-text);background:transparent}
.btn-outline:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-1px)}
.btn-outline:active{transform:translateY(0)}
.btn-ghost{color:var(--c-primary);background:transparent}
.btn-ghost:hover{background:var(--c-primary-soft);color:var(--c-primary-deep)}
.btn-accent{background:var(--c-accent);color:#3A2A00}
.btn-accent:hover{background:#F5B81F;color:#3A2A00;transform:translateY(-1px)}
.btn-sm{height:34px;padding:0 14px;font-size:13px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.burger{display:none;width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--c-line-strong);position:relative}
.burger span,.burger span::before,.burger span::after{
  position:absolute;left:50%;transform:translateX(-50%);width:18px;height:2px;background:var(--c-text);content:"";border-radius:2px;
}
.burger span{top:50%;margin-top:-1px}
.burger span::before{top:-6px}
.burger span::after{top:6px}

/* ---------- 频道 Tabs ---------- */
.tabs{border-top:1px solid var(--c-line);background:var(--c-surface)}
.tabs-inner{position:relative;display:flex;align-items:center;gap:28px;height:48px;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.tabs-inner::-webkit-scrollbar{display:none}
.tab{position:relative;display:inline-flex;align-items:center;height:48px;font-size:15px;color:var(--c-text-2);white-space:nowrap}
.tab:hover{color:var(--c-text)}
.tab.active{color:var(--c-text);font-weight:600}
.tab.active::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--c-primary);border-radius:2px}

/* 移动端抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(34,38,43,.45);opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;z-index:60}
.drawer{position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;background:var(--c-surface);z-index:70;transform:translateX(100%);transition:transform .26s cubic-bezier(.2,.7,.3,1);padding:20px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:36px;height:36px;border-radius:var(--r-sm);border:1px solid var(--c-line-strong);font-size:18px;line-height:1;color:var(--c-text-2)}
.drawer-search{position:relative;margin-bottom:20px}
.drawer-search input{width:100%;height:44px;border-radius:var(--r-pill);border:1px solid var(--c-line-strong);padding:0 16px;font-size:15px;background:var(--c-surface)}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:20px}
.drawer-nav a{padding:12px 10px;border-radius:var(--r-sm);font-size:15px;color:var(--c-text-2)}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--c-primary-soft);color:var(--c-primary-deep);font-weight:600}
.drawer-foot{display:flex;flex-direction:column;gap:12px;border-top:1px solid var(--c-line);padding-top:20px}

/* ---------- 页头 ---------- */
.page-hero{padding:40px 0 56px;background:var(--c-surface);border-bottom:1px solid var(--c-line)}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-2);margin-bottom:18px}
.crumbs span.sep{color:var(--c-text-3)}
.crumbs .now{color:var(--c-text)}
.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:40px;align-items:end}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.12em;color:var(--c-primary);font-weight:600;margin-bottom:14px}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--c-primary);border-radius:2px}
h1{font-size:clamp(28px,4vw,42px);line-height:1.25;font-weight:700;letter-spacing:.005em}
.hero-lead{margin-top:16px;font-size:16px;line-height:1.85;color:var(--c-text-2);max-width:640px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-aside{display:flex;flex-direction:column;gap:12px}
.mini-card{background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:18px 20px}
.mini-card .mini-label{font-size:12px;letter-spacing:.1em;color:var(--c-text-3);text-transform:uppercase}
.mini-card .mini-value{font-family:var(--font-num);font-size:24px;font-weight:700;color:var(--c-secondary);margin-top:6px;font-variant-numeric:tabular-nums}
.mini-card .mini-note{font-size:13px;color:var(--c-text-2);margin-top:4px}

/* ---------- 标签 / 徽章 ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;line-height:1;
  padding:6px 12px;border-radius:var(--r-pill);border:1px solid var(--c-line-strong);
  color:var(--c-text-2);background:var(--c-surface);transition:all .18s ease;
}
.pill:hover{border-color:var(--c-primary);color:var(--c-primary)}
.pill.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
.pill-solid{display:inline-flex;align-items:center;font-size:13px;line-height:1;padding:5px 11px;border-radius:var(--r-pill);background:var(--c-accent);color:#3A2A00;font-weight:600}
.pill-soft{background:var(--c-secondary-soft);color:var(--c-secondary);border:0}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}

/* ---------- 搜索大框 ---------- */
.search-hero{padding:0 0 8px}
.search-big{position:relative;display:flex;align-items:center;max-width:760px;margin:0 auto;background:var(--c-surface);border:1px solid var(--c-line-strong);border-radius:var(--r-pill);height:52px;padding-right:6px;transition:border-color .18s ease,box-shadow .18s ease}
.search-big:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 2px rgba(232,80,30,.16)}
.search-big input{flex:1 1 auto;height:100%;border:0;background:transparent;padding:0 18px 0 46px;font-size:15px;outline:none}
.search-big input::placeholder{color:var(--c-text-3)}
.search-big .search-icon{left:18px}
.search-big .btn{height:40px}
.hot-words{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:18px;font-size:13px;color:var(--c-text-3)}
.hot-words a{color:var(--c-text-2);border-bottom:1px dashed var(--c-line-strong)}
.hot-words a:hover{color:var(--c-primary);border-color:var(--c-primary)}

/* ---------- 板块标题 ---------- */
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.sec-head h2{position:relative;font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700;color:var(--c-secondary);padding-left:14px}
.sec-head h2::before{content:"";position:absolute;left:0;top:6px;width:4px;height:18px;border-radius:2px;background:var(--c-primary)}
.sec-head p{margin-top:8px;font-size:15px;color:var(--c-text-2);padding-left:14px}
.sec-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary)}
.sec-link .arrow{transition:transform .18s ease}
.sec-link:hover .arrow{transform:translateX(2px)}

/* ---------- 问答卡（错落两列） ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;align-items:start}
.qa-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:22px 22px 12px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.qa-card:hover{transform:translateY(-2px);border-color:rgba(232,80,30,.25);box-shadow:var(--sh-2)}
.qa-card-head{display:flex;align-items:center;gap:12px;margin-bottom:8px}
.qa-cat{display:inline-flex;align-items:center;font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--r-pill);background:var(--c-secondary-soft);color:var(--c-secondary)}
.qa-card h3{font-size:18px;font-weight:600;line-height:1.45;color:var(--c-text);margin:6px 0 12px}
.fold{border-top:1px solid var(--c-line)}
.fold:first-of-type{border-top:0}
.fold summary{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:15px 0;font-size:15px;font-weight:600;color:var(--c-text);cursor:pointer;list-style:none;
}
.fold summary::-webkit-details-marker{display:none}
.fold summary::after{
  content:"+";flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:15px;line-height:1;color:var(--c-text-2);
  border:1px solid var(--c-line-strong);
  transition:transform .2s cubic-bezier(.2,.7,.3,1),color .2s ease,border-color .2s ease;
}
.fold[open] summary::after{transform:rotate(45deg);color:var(--c-primary);border-color:var(--c-primary)}
.fold[open] summary{color:var(--c-secondary)}
.fold .fold-body{
  border-left:3px solid var(--c-primary);padding:4px 0 4px 14px;margin-bottom:14px;
  font-size:15px;line-height:1.85;color:var(--c-text-2);
}
.fold .fold-body p+p{margin-top:10px}
.fold .fold-body strong{color:var(--c-text);font-weight:600}
.fold .fold-body ul{margin-top:8px;display:flex;flex-direction:column;gap:6px}
.fold .fold-body li{position:relative;padding-left:16px}
.fold .fold-body li::before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:2px;background:var(--c-primary)}

/* ---------- 主题导航块 ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}
.topic{display:block;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--sh-1);transition:all .18s ease}
.topic:hover{transform:translateY(-2px);border-color:rgba(232,80,30,.25);box-shadow:var(--sh-2);color:inherit}
.topic .topic-index{font-family:var(--font-num);font-size:13px;color:var(--c-primary);font-weight:700}
.topic h4{font-size:16px;font-weight:600;margin:10px 0 6px}
.topic p{font-size:13px;color:var(--c-text-2);line-height:1.75}

/* ---------- 图文辅助区 ---------- */
.media-split{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.media-figure{border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--sh-2);background:var(--c-surface)}
.media-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.media-body h2{font-size:clamp(21px,2.4vw,28px);color:var(--c-secondary);font-weight:700;line-height:1.4}
.media-body p{margin-top:14px;font-size:16px;line-height:1.9;color:var(--c-text-2)}
.check-list{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--c-text)}
.check-list li .dot{flex:0 0 auto;width:18px;height:18px;border-radius:50%;background:var(--c-primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-family:var(--font-num);font-size:11px;margin-top:4px}

/* ---------- 联系卡 ---------- */
.contact-card{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  background:var(--c-primary-soft);border:1px solid rgba(232,80,30,.18);border-radius:var(--r-lg);
  padding:28px 32px;
}
.contact-card h3{font-size:20px;font-weight:700;color:var(--c-secondary)}
.contact-card p{margin-top:8px;font-size:15px;color:var(--c-text-2);max-width:640px}

/* ---------- 深色 CTA ---------- */
.cta-block{
  position:relative;overflow:hidden;border-radius:var(--r-xl);background:var(--c-secondary);
  padding:56px;display:grid;grid-template-columns:1.2fr .8fr;gap:32px;align-items:center;
}
.cta-block::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.04) 0 1px,transparent 1px 12px);
}
.cta-block>*{position:relative}
.cta-block h2{color:#fff;font-size:clamp(22px,2.6vw,30px);line-height:1.4;font-weight:700}
.cta-points{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.cta-points li{position:relative;padding-left:18px;font-size:15px;color:rgba(255,255,255,.72)}
.cta-points li::before{content:"";position:absolute;left:0;top:.7em;width:6px;height:6px;border-radius:2px;background:var(--c-accent)}
.cta-action{display:flex;flex-direction:column;align-items:flex-start;gap:12px;justify-self:end}
.cta-note{font-size:13px;color:rgba(255,255,255,.6)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-secondary);color:rgba(255,255,255,.7);padding-top:56px;margin-top:72px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.site-footer a{color:rgba(255,255,255,.7);display:block;font-size:14px;padding:5px 0}
.site-footer a:hover{color:var(--c-accent)}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;color:#fff;font-size:16px;margin-bottom:14px}
.site-footer p{font-size:14px;line-height:1.85;max-width:420px}
.footer-keyword{display:inline-flex;margin-top:14px;font-size:13px;padding:5px 12px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.72)}
.footer-col h3{font-size:14px;color:#fff;font-weight:600;margin-bottom:10px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);min-height:56px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;font-size:13px;color:rgba(255,255,255,.6);padding:14px 0}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:960px}
  .topic-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:991px){
  .search{display:none}
  .burger{display:inline-flex;align-items:center;justify-content:center}
  .hero-grid{grid-template-columns:1fr;gap:28px;align-items:start}
  .hero-aside{flex-direction:row;flex-wrap:wrap}
  .mini-card{flex:1 1 180px}
  .media-split{grid-template-columns:1fr;gap:28px}
  .cta-block{grid-template-columns:1fr;padding:40px 32px}
  .cta-action{justify-self:start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:56px 0}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .navbar{height:56px;gap:12px}
  .brand-text{font-size:15px;max-width:52vw;overflow:hidden;text-overflow:ellipsis}
  .nav-login{display:none}
  .tabs-inner{gap:10px;height:auto;padding:10px 0}
  .tab{height:32px;padding:0 14px;border-radius:var(--r-pill);border:1px solid var(--c-line-strong);font-size:14px}
  .tab.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
  .tab.active::after{display:none}
  .page-hero{padding:28px 0 40px}
  .hero-lead{font-size:15px}
  .section{padding:44px 0}
  .qa-grid{grid-template-columns:1fr;gap:16px}
  .topic-grid{grid-template-columns:1fr 1fr}
  .search-big{height:50px}
  .search-big input{font-size:14px;padding-left:42px}
  .search-big .btn{height:38px;padding:0 14px;font-size:14px}
  .contact-card{padding:22px}
  .contact-card .btn{width:100%}
  .cta-block{padding:32px 22px}
  .cta-block .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:480px){
  .topic-grid{grid-template-columns:1fr}
  h1{font-size:28px}
  .qa-card{padding:20px 18px 8px}
}