/* roulang page: index */
:root{
  --ink:#12333A;
  --ink-2:#1C4A50;
  --action:#E25C33;
  --action-hover:#C74A24;
  --action-soft:rgba(226,92,51,.10);
  --accent:#F2B431;
  --bg:#FBF7F1;
  --bg-alt:#F3ECE1;
  --surface:#FFFFFF;
  --text:#1D2A2C;
  --text-muted:#5C6B6E;
  --line:#E4DACD;
  --ok:#2F8F6B;
  --warn:#C0392B;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-1:0 1px 2px rgba(18,51,58,.06),0 8px 24px -12px rgba(18,51,58,.18);
  --shadow-2:0 12px 32px -14px rgba(18,51,58,.28);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:ui-monospace,"DIN Alternate",Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:120px}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--action)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.3;color:var(--ink)}
p{margin:0}
ul,ol{margin:0}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:6px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 顶部活动条 ---------- */
.topbar{background:var(--ink);color:#fff;font-size:13px}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;height:40px}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0}
.topbar-brand{font-weight:600;letter-spacing:.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tag-live{background:var(--accent);color:#3A2A05;border-radius:999px;padding:2px 10px;font-size:12px;font-weight:700;white-space:nowrap}
.timer{display:flex;align-items:center;gap:5px;font-size:13px;color:rgba(255,255,255,.92)}
.timer b{background:rgba(255,255,255,.12);border-radius:6px;padding:2px 7px;font-weight:600;min-width:32px;text-align:center;font-family:var(--font-mono)}
.timer i{font-style:normal;opacity:.6}

/* ---------- 双层导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--bg);border-bottom:1px solid var(--line)}
.nav-main{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--ink);flex:0 0 auto}
.brand:hover{color:var(--ink)}
.brand-mark{width:32px;height:32px;border-radius:9px;background:var(--ink);display:flex;align-items:center;justify-content:center;color:var(--accent);flex:0 0 auto}
.search{position:relative;flex:1;max-width:320px;margin-left:auto}
.search input{width:100%;height:40px;border-radius:999px;border:1px solid var(--line);background:var(--surface);padding:0 16px 0 42px;font-size:14px;transition:border-color .18s ease-out,box-shadow .18s ease-out}
.search input::placeholder{color:var(--text-muted)}
.search input:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(18,51,58,.12)}
.search svg{position:absolute;left:15px;top:50%;transform:translateY(-50%);color:var(--text-muted);pointer-events:none}
.nav-channels{border-top:1px solid var(--line)}
.channels{display:flex;align-items:center;gap:8px;height:44px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.channels::-webkit-scrollbar{display:none}
.pill{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:6px 16px;font-size:14px;font-weight:500;color:var(--text-muted);white-space:nowrap;border:1px solid transparent;transition:background .18s ease-out,color .18s ease-out}
.pill:hover{background:var(--bg-alt);color:var(--ink)}
.pill.active{background:var(--ink);color:#fff;font-weight:600}
.pill.active:hover{background:var(--ink-2);color:#fff}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out}
.btn-primary{background:var(--action);color:#fff}
.btn-primary:hover{background:var(--action-hover);color:#fff}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:var(--action-soft);color:var(--ink)}
.btn-outline:active{transform:translateY(1px)}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;height:28px;padding:0 14px;font-size:13px;border-radius:8px}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff}
.btn-block{width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed;pointer-events:none}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-alt{background:var(--bg-alt)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{position:relative;padding-left:15px;font-size:28px}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--action)}
.section-head p{margin-top:10px;padding-left:15px;color:var(--text-muted);font-size:15px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink);white-space:nowrap}
.link-more::after{content:"→";transition:transform .18s ease-out}
.link-more:hover{color:var(--action);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}
.link-more:hover::after{transform:translateX(4px)}

/* ---------- 首屏 ---------- */
.hero{background:var(--bg-alt);padding:72px 0}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--action);background:var(--action-soft);border-radius:999px;padding:5px 14px;margin-bottom:20px}
.hero h1{font-size:40px;line-height:1.32;margin-bottom:16px}
.hero-sub{font-size:17px;color:var(--text-muted);margin-bottom:28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px}
.hero-stats{list-style:none;display:flex;padding:24px 0 0;margin:0;border-top:1px solid var(--line)}
.hero-stats li{flex:1;padding:0 20px;border-right:1px solid var(--line)}
.hero-stats li:first-child{padding-left:0}
.hero-stats li:last-child{border-right:0;padding-right:0}
.hero-stats strong{display:block;font-size:24px;font-weight:700;color:var(--ink);font-family:var(--font-mono);line-height:1.3}
.hero-stats span{font-size:13px;color:var(--text-muted)}
.hero-media{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--shadow-1);background:var(--surface)}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-badge{position:absolute;right:16px;bottom:16px;background:var(--accent);color:#3A2A05;border-radius:999px;padding:6px 14px;font-size:12px;font-weight:700}

/* ---------- 卖点编号 ---------- */
.point-grid{display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid var(--line)}
.point{position:relative;display:flex;gap:20px;padding:30px 24px;border-top:1px solid var(--line);transition:transform .18s ease-out}
.point::before{content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;border-radius:2px;background:var(--action);opacity:0;transition:opacity .18s ease-out}
.point:hover{transform:translateX(4px)}
.point:hover::before{opacity:1}
.point-num{flex:0 0 72px;font-family:var(--font-mono);font-size:48px;font-weight:800;line-height:1;color:var(--ink);opacity:.2}
.point h3{font-size:19px;margin-bottom:8px;font-weight:700}
.point p{font-size:15px;color:var(--text-muted)}

/* ---------- 图墙 ---------- */
.gallery{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:180px;gap:16px}
.g-item{position:relative;overflow:hidden;border-radius:var(--r-img);background:var(--bg-alt);margin:0}
.g-item img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out}
.g-item:hover img{transform:scale(1.03)}
.g-item figcaption{position:absolute;left:0;right:0;bottom:0;padding:16px;font-size:14px;font-weight:600;color:#fff;background:linear-gradient(180deg,rgba(18,51,58,0) 0%,rgba(18,51,58,.82) 100%);transform:translateY(6px);opacity:.92;transition:transform .2s ease-out,opacity .2s ease-out}
.g-item:hover figcaption{transform:translateY(0);opacity:1}
.g-a{grid-column:span 2;grid-row:span 2}
.g-b{grid-column:span 2}
.g-e{grid-column:span 2}
.g-f{grid-column:span 2}

/* ---------- 深色 CTA + 表单 ---------- */
.cta-band{position:relative;background:var(--ink);color:#fff;padding:80px 0;overflow:hidden}
.cta-band::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 2px,transparent 2px 14px);pointer-events:none}
.cta-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr 420px;gap:56px;align-items:start}
.cta-band h2{position:relative;padding-left:15px;color:#fff;font-size:28px;margin-bottom:14px}
.cta-band h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--accent)}
.cta-lead{color:rgba(255,255,255,.78);font-size:16px;margin-bottom:22px}
.benefit-list{list-style:none;padding:0;margin:0}
.benefit-list li{position:relative;padding-left:26px;margin-bottom:14px;font-size:16px;color:rgba(255,255,255,.88)}
.benefit-list li::before{content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:2px;background:var(--accent)}
.cta-form{background:var(--surface);border-radius:var(--r-card);padding:28px;box-shadow:var(--shadow-2);color:var(--text)}
.cta-form-title{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:18px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:6px}
.field input,.field select{width:100%;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);background:var(--surface);padding:0 14px;font-size:15px;transition:border-color .18s ease-out,box-shadow .18s ease-out}
.field input:focus,.field select:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(18,51,58,.12)}
.field input::placeholder{color:#9AA7A9}
.form-tip{font-size:12px;line-height:1.7;color:var(--text-muted);margin-top:12px}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:320px 1fr;gap:48px;align-items:start}
.faq-aside{position:sticky;top:130px}
.faq-aside h2{position:relative;padding-left:15px;font-size:28px;margin-bottom:14px}
.faq-aside h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--action)}
.faq-aside p{font-size:15px;color:var(--text-muted)}
.faq-list{counter-reset:faq;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);counter-increment:faq}
.faq-item summary{display:flex;align-items:flex-start;gap:14px;padding:20px 0;cursor:pointer;list-style:none;font-size:17px;font-weight:600;color:var(--ink);line-height:1.6}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{content:counter(faq,decimal-leading-zero);flex:0 0 24px;font-family:var(--font-mono);font-size:14px;font-weight:700;color:var(--action);padding-top:4px}
.faq-item summary::after{content:"";flex:0 0 auto;width:9px;height:9px;margin-left:auto;margin-top:8px;border-right:2px solid var(--text-muted);border-bottom:2px solid var(--text-muted);transform:rotate(45deg);transition:transform .18s ease-out}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-item summary:hover{color:var(--action)}
.faq-answer{margin:0 0 22px 38px;padding-left:16px;border-left:3px solid var(--action);font-size:15px;line-height:1.8;color:var(--text-muted)}

/* ---------- 最新信息列表 ---------- */
.news-list{border-top:1px solid var(--line)}
.news-row{display:grid;grid-template-columns:auto 1fr auto 120px 24px;gap:20px;align-items:center;padding:18px 12px;border-bottom:1px solid var(--line);transition:background .18s ease-out,transform .18s ease-out}
.news-row:hover{background:var(--bg-alt);transform:translateX(4px);color:inherit}
.news-row:hover .news-title{color:var(--action)}
.pill-cat{background:var(--bg-alt);color:var(--ink);font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px}
.news-row:hover .pill-cat{background:var(--surface)}
.news-body{min-width:0}
.news-title{display:block;font-size:16px;font-weight:600;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:color .18s ease-out}
.news-sum{display:-webkit-box;font-size:13px;color:var(--text-muted);margin-top:4px;overflow:hidden;-webkit-line-clamp:2;-webkit-box-orient:vertical;line-height:1.7}
.news-time{font-size:13px;color:var(--text-muted);white-space:nowrap;font-family:var(--font-mono)}
.news-thumb{width:120px;height:80px;border-radius:8px;object-fit:cover}
.news-arrow{color:var(--text-muted);font-size:16px}
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;min-height:200px;padding:32px;border:1px dashed var(--line);border-radius:var(--r-card);text-align:center;color:var(--text-muted)}
.empty-state svg{color:var(--text-muted);opacity:.7}
.empty-state p{font-size:15px}
.skeleton{background:var(--bg-alt);border-radius:8px;animation:breathe 1.2s ease-in-out infinite}
@keyframes breathe{0%,100%{opacity:1}50%{opacity:.55}}

/* ---------- 信任数据 ---------- */
.trust-grid{display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center}
.trust-copy h2{position:relative;padding-left:15px;font-size:28px;margin-bottom:16px}
.trust-copy h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--action)}
.trust-copy p{font-size:16px;color:var(--text-muted);margin-bottom:14px}
.trust-media{border-radius:var(--r-img);overflow:hidden;box-shadow:var(--shadow-1)}
.trust-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.stat-row{display:flex;grid-column:1 / -1;margin-top:8px;border-top:1px solid var(--line);padding-top:26px}
.stat-row div{flex:1;padding:0 22px;border-right:1px solid var(--line)}
.stat-row div:first-child{padding-left:0}
.stat-row div:last-child{border-right:0;padding-right:0}
.stat-row strong{display:block;font-size:26px;font-weight:700;color:var(--ink);font-family:var(--font-mono);line-height:1.3}
.stat-row span{font-size:13px;color:var(--text-muted)}

/* ---------- 页脚前 CTA ---------- */
.pre-footer{background:var(--bg-alt);border-top:1px solid var(--line);padding:36px 0}
.pre-footer .container{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.pre-footer h3{font-size:20px;margin-bottom:6px}
.pre-footer p{font-size:14px;color:var(--text-muted)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);font-size:14px;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;margin-bottom:16px}
.footer-brand:hover{color:#fff}
.footer-desc{line-height:1.9;color:rgba(255,255,255,.68);max-width:320px}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(255,255,255,.72)}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{margin-top:56px;border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.55)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .gallery{grid-auto-rows:160px}
}
@media (max-width:1023px){
  .hero{padding:56px 0}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero h1{font-size:32px}
  .section{padding:72px 0}
  .section-head h2,.faq-aside h2,.cta-band h2,.trust-copy h2{font-size:24px}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .faq-aside{position:static}
  .trust-grid{grid-template-columns:1fr;gap:32px}
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:170px}
  .g-a{grid-column:span 2;grid-row:span 1}
  .g-b,.g-e,.g-f{grid-column:span 1}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-desc{max-width:none}
  .search{display:none}
}
@media (max-width:767px){
  .container{padding:0 16px}
  body{font-size:15px}
  .topbar .container{height:36px}
  .topbar-brand{max-width:110px}
  .topbar .btn-ghost-light{display:none}
  .nav-main{height:56px;gap:14px}
  .brand{font-size:16px}
  .brand-mark{width:28px;height:28px}
  .channels{height:42px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:15px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .hero-stats{flex-wrap:wrap;gap:16px;padding-top:20px}
  .hero-stats li{flex:1 1 42%;border-right:0;padding:0}
  .hero-stats strong{font-size:20px}
  .section{padding:56px 0}
  .point-grid{grid-template-columns:1fr}
  .point{padding:22px 8px}
  .point-num{flex:0 0 46px;font-size:32px}
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:132px;gap:12px}
  .g-item:nth-child(n+5){display:none}
  .cta-band{padding:56px 0}
  .cta-form{padding:22px}
  .faq-item summary{font-size:16px;padding:16px 0}
  .faq-answer{margin-left:30px}
  .news-row{display:block;padding:16px 4px}
  .news-thumb,.news-arrow{display:none}
  .news-title{white-space:normal;margin-top:8px}
  .news-time{display:block;margin-top:8px}
  .stat-row{flex-wrap:wrap;gap:18px}
  .stat-row div{flex:1 1 40%;border-right:0;padding:0}
  .pre-footer .container{flex-direction:column;align-items:flex-start}
  .pre-footer .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: article */
:root{
  --ink:#12333A;--ink-2:#1C4A50;--action:#E25C33;--action-hover:#C74A24;--action-soft:rgba(226,92,51,.10);
  --accent:#F2B431;--bg:#FBF7F1;--bg-alt:#F3ECE1;--surface:#FFFFFF;--text:#1D2A2C;--text-muted:#5C6B6E;
  --line:#E4DACD;--ok:#2F8F6B;--warn:#C0392B;
  --shadow-1:0 1px 2px rgba(18,51,58,.06),0 8px 24px -12px rgba(18,51,58,.18);
  --shadow-2:0 12px 32px -14px rgba(18,51,58,.28);
  --r-card:14px;--r-btn:10px;--r-img:12px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:120px;}
body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.8;}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--action);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{line-height:1.3;margin:0;font-weight:800;letter-spacing:0;}
p{margin:0 0 1.1em;}
ul,ol{margin:0 0 1.1em;padding-left:22px;}
li{margin:.35em 0;}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:4px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}

/* 顶部倒计时条 */
.topbar{position:sticky;top:0;z-index:60;height:40px;overflow:hidden;background:var(--ink);color:#fff;transition:height .18s ease-out,opacity .18s ease-out;}
body.scrolled .topbar{height:0;opacity:0;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:40px;}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0;}
.topbar-brand{font-weight:700;font-size:14px;white-space:nowrap;}
.tag-live{background:var(--accent);color:#3A2A05;font-size:12px;font-weight:700;padding:2px 10px;border-radius:999px;white-space:nowrap;}
.countdown{display:flex;align-items:center;gap:4px;font-family:ui-monospace,"DIN Alternate",monospace;font-variant-numeric:tabular-nums;font-size:14px;}
.countdown .num{background:rgba(255,255,255,.14);border-radius:6px;padding:1px 7px;min-width:30px;text-align:center;}
.countdown .sep{color:rgba(255,255,255,.65);font-size:12px;margin-right:4px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border-radius:var(--r-btn);border:1.5px solid transparent;padding:0 18px;height:40px;font-size:14px;font-weight:600;cursor:pointer;transition:background-color .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;}
.btn-primary{background:var(--action);color:#fff;}
.btn-primary:hover{background:var(--action-hover);color:#fff;}
.btn-primary:active{transform:translateY(1px);box-shadow:0 2px 8px -4px rgba(18,51,58,.4);}
.btn-outline{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-outline:hover{background:var(--action-soft);border-color:var(--action);color:var(--action);}
.btn-ghost-light{border-color:rgba(255,255,255,.55);color:#fff;height:28px;padding:0 12px;font-size:12px;border-radius:999px;}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff;}
.btn:disabled{opacity:.5;pointer-events:none;}

/* 导航 */
.site-header{position:sticky;top:40px;z-index:50;background:var(--surface);border-bottom:1px solid var(--line);transition:top .18s ease-out;}
body.scrolled .site-header{top:0;}
.nav-main{display:flex;align-items:center;gap:20px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--ink);white-space:nowrap;}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:8px;background:var(--ink);color:#fff;flex:0 0 auto;}
.search{display:flex;align-items:center;gap:8px;flex:1;max-width:320px;height:38px;padding:0 14px;border:1px solid var(--line);border-radius:999px;background:var(--bg);color:var(--text-muted);margin-left:auto;}
.search:focus-within{border-color:var(--ink);box-shadow:0 0 0 3px rgba(18,51,58,.10);}
.search input{flex:1;border:0;background:transparent;outline:none;font-size:14px;min-width:0;}
.nav-channels{border-top:1px solid var(--line);background:var(--surface);}
.channels{display:flex;align-items:center;gap:8px;height:44px;overflow-x:auto;scrollbar-width:none;}
.channels::-webkit-scrollbar{display:none;}
.pill{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;font-size:14px;color:var(--text-muted);white-space:nowrap;transition:background-color .18s ease-out,color .18s ease-out;}
.pill:hover{background:var(--bg-alt);color:var(--ink);}
.pill.active{background:var(--ink);color:#fff;}
.pill.active:hover{background:var(--ink-2);color:#fff;}

/* 文章头 */
.article-hero{position:relative;padding:34px 0 40px;color:#fff;background:linear-gradient(115deg,rgba(18,51,58,.95) 12%,rgba(28,74,80,.82) 100%),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.68);margin-bottom:18px;}
.breadcrumb a{color:rgba(255,255,255,.75);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .current{color:rgba(255,255,255,.6);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.pill-cat{background:rgba(255,255,255,.14);color:#fff;font-size:12px;padding:4px 12px;}
.pill-cat:hover{background:rgba(255,255,255,.22);color:#fff;}
.article-hero h1{margin:14px 0 16px;font-size:38px;line-height:1.35;max-width:820px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.72);font-family:ui-monospace,"DIN Alternate",monospace;font-variant-numeric:tabular-nums;}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.5);}
.article-meta .plain{font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;}

/* 正文布局 */
.article-wrap{padding:48px 0 72px;}
.article-layout{display:grid;grid-template-columns:minmax(0,820px) 260px;gap:56px;justify-content:center;align-items:start;}
.article-main{min-width:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow-1);padding:40px 44px;}
.article-body{font-size:17px;line-height:1.9;color:var(--text);}
.article-body p{margin:0 0 1.1em;}
.article-body h2{font-size:24px;margin:2.2em 0 .8em;padding-left:12px;border-left:4px solid var(--action);}
.article-body h3{font-size:19px;margin:1.8em 0 .6em;}
.article-body h2:first-child,.article-body h3:first-child{margin-top:0;}
.article-body ul,.article-body ol{padding-left:22px;}
.article-body li{position:relative;}
.article-body blockquote{margin:1.4em 0;padding:14px 18px;background:var(--bg-alt);border-left:3px solid var(--ink);border-radius:0 10px 10px 0;color:var(--text);}
.article-body img{border-radius:var(--r-img);margin:1.4em auto;}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px;}
.article-body th{background:var(--ink);color:#fff;text-align:left;padding:10px 14px;font-weight:600;}
.article-body td{padding:10px 14px;border-bottom:1px solid var(--line);}
.article-body tr:nth-child(even) td{background:var(--bg-alt);}
.article-body a{color:var(--ink);text-decoration:underline;text-underline-offset:4px;}
.article-body a:hover{color:var(--action);}
.article-body .table-scroll{overflow-x:auto;}
.tip-strip{margin:1.6em 0;padding:14px 18px;background:var(--action-soft);border:1px solid rgba(226,92,51,.24);border-radius:10px;font-size:15px;color:var(--text);}

/* 侧栏 */
.article-side{position:sticky;top:128px;display:flex;flex-direction:column;gap:20px;}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow-1);}
.side-card h3{font-size:15px;margin-bottom:12px;}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{font-size:14px;color:var(--text-muted);padding:6px 0 6px 10px;border-left:3px solid transparent;line-height:1.5;}
.toc-list a:hover,.toc-list a.active{color:var(--ink);border-left-color:var(--action);}
.toc-empty{font-size:13px;color:var(--text-muted);}
.side-links{display:flex;flex-direction:column;gap:10px;}
.side-links a{font-size:14px;color:var(--text);display:flex;gap:8px;align-items:flex-start;line-height:1.6;}
.side-links a:hover{color:var(--action);}
.side-links .idx{font-family:ui-monospace,monospace;color:var(--action);font-weight:700;font-size:13px;}

/* 标签、延伸阅读、翻页 */
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line);}
.tag{background:var(--bg-alt);color:var(--ink);font-size:13px;padding:5px 12px;border-radius:999px;transition:background-color .18s ease-out;}
.tag:hover{background:var(--action-soft);color:var(--action);}
.section-block{margin-top:40px;}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:20px;}
.section-head h2{font-size:22px;padding-left:12px;border-left:4px solid var(--action);}
.text-link{font-size:14px;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:6px;}
.text-link:hover{color:var(--action);text-decoration:underline;text-underline-offset:4px;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .18s ease-out,box-shadow .18s ease-out;}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.card-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt);}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .18s ease-out;}
.card:hover .card-thumb img{transform:scale(1.03);}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:17px;line-height:1.45;}
.card-body p{font-size:14px;color:var(--text-muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-muted);font-family:ui-monospace,monospace;}
.badge{display:inline-flex;align-items:center;font-size:12px;font-weight:600;border-radius:999px;padding:3px 10px;}
.badge-cat{background:var(--bg-alt);color:var(--ink);}
.badge-time{background:var(--accent);color:#3A2A05;}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px;}
.pager a{display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:18px 20px;transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;}
.pager a:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--action);}
.pager .label{font-size:12px;color:var(--text-muted);letter-spacing:.06em;}
.pager .title{font-size:16px;font-weight:700;color:var(--ink);margin-top:6px;}
.pager .right{text-align:right;}
.empty-state{border:1px dashed var(--line);border-radius:var(--r-card);background:var(--surface);min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;text-align:center;padding:36px 24px;color:var(--text-muted);}
.empty-state strong{color:var(--ink);font-size:17px;}
.cta-band{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:28px 0;}
.cta-band .inner{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.cta-band h2{font-size:20px;}
.cta-band p{margin:4px 0 0;font-size:14px;color:var(--text-muted);}

/* 页脚 */
.site-footer{background:var(--ink);color:#fff;padding:56px 0 24px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:17px;margin-bottom:14px;}
.footer-brand:hover{color:var(--accent);}
.footer-desc{color:rgba(255,255,255,.7);font-size:14px;line-height:1.8;max-width:34em;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;}
.footer-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.footer-links li{color:rgba(255,255,255,.7);font-size:14px;}
.footer-links a{color:rgba(255,255,255,.7);font-size:14px;}
.footer-links a:hover{color:var(--accent);}
.footer-bottom{margin-top:40px;padding-top:18px;border-top:1px solid rgba(255,255,255,.16);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6);}

@media (max-width:1023px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .article-side{display:none;}
  .article-main{padding:32px 28px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .nav-main{height:56px;gap:12px;}
  .brand{font-size:16px;}
  .search{display:none;}
  .article-hero h1{font-size:26px;}
  .article-main{padding:24px 18px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:21px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .pager{grid-template-columns:minmax(0,1fr);}
  .pager .right{text-align:left;}
  .footer-grid{grid-template-columns:1fr;}
  .topbar-left .topbar-brand{display:none;}
}
@media (max-width:520px){
  .countdown .days,.countdown .days-sep{display:none;}
  .article-hero h1{font-size:24px;}
  .btn{width:100%;}
  .cta-band .inner{flex-direction:column;align-items:stretch;}
}

/* roulang page: category1 */
:root{
  --ink:#12333A;
  --ink-2:#1C4A50;
  --action:#E25C33;
  --action-hover:#C74A24;
  --action-soft:rgba(226,92,51,.10);
  --accent:#F2B431;
  --bg:#FBF7F1;
  --bg-alt:#F3ECE1;
  --surface:#FFFFFF;
  --text:#1D2A2C;
  --text-muted:#5C6B6E;
  --line:#E4DACD;
  --ok:#2F8F6B;
  --warn:#C0392B;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-1:0 1px 2px rgba(18,51,58,.06), 0 8px 24px -12px rgba(18,51,58,.18);
  --shadow-2:0 12px 32px -14px rgba(18,51,58,.28);
  --mono:ui-monospace,"DIN Alternate","SFMono-Regular",Menlo,Consolas,monospace;
  --trans:180ms ease-out;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:120px;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.3;letter-spacing:0;}
p{margin:0;}
a{color:var(--ink);text-decoration:none;transition:color var(--trans);}
a:hover{color:var(--action);}
img{max-width:100%;display:block;border-radius:var(--r-img);}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

/* ============ 顶部倒计时条 ============ */
.site-top{position:sticky;top:0;z-index:60;}
.topbar{
  background:var(--ink);
  color:#fff;
  height:40px;
  overflow:hidden;
  transition:height var(--trans),opacity var(--trans);
}
.scrolled .topbar{height:0;opacity:0;}
.topbar .container{height:40px;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-brand{display:flex;align-items:center;gap:10px;font-size:13px;white-space:nowrap;color:rgba(255,255,255,.9);}
.tag-live{background:var(--accent);color:#3A2A05;font-size:12px;font-weight:700;padding:2px 9px;border-radius:999px;white-space:nowrap;}
.countdown{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:14px;letter-spacing:.1em;color:#fff;}
.countdown .cd-days{color:var(--accent);}
.topbar-btn{
  background:transparent;border:1px solid rgba(255,255,255,.5);color:#fff;
  font-size:12px;padding:4px 12px;border-radius:999px;transition:background var(--trans);
}
.topbar-btn:hover{background:rgba(255,255,255,.14);}
.topbar-btn:active{transform:translateY(1px);}

/* ============ 导航 ============ */
.site-header{
  background:rgba(251,247,241,.97);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(140%) blur(6px);
}
.nav-main{display:flex;align-items:center;gap:20px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--ink);white-space:nowrap;}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:30px;height:30px;border-radius:9px;background:var(--ink);color:#fff;
  display:grid;place-items:center;flex:0 0 auto;
}
.search{
  flex:1;max-width:320px;margin-left:auto;height:40px;
  display:flex;align-items:center;gap:8px;padding:0 14px;
  background:var(--bg-alt);border:1px solid var(--line);border-radius:999px;
  color:var(--text-muted);transition:border-color var(--trans),box-shadow var(--trans);
}
.search:focus-within{border-color:var(--ink);box-shadow:0 0 0 3px rgba(18,51,58,.10);}
.search input{flex:1;border:0;background:transparent;outline:none;font-size:14px;color:var(--text);}
.search input::placeholder{color:#93A0A2;}
.search-toggle{
  display:none;align-items:center;justify-content:center;width:38px;height:38px;
  border:1px solid var(--line);background:var(--surface);border-radius:10px;color:var(--ink);
}
.nav-channels{background:var(--surface);border-top:1px solid var(--line);}
.channels{display:flex;align-items:center;gap:8px;height:44px;overflow-x:auto;scrollbar-width:none;}
.channels::-webkit-scrollbar{display:none;}
.pill{
  display:inline-flex;align-items:center;padding:6px 15px;border-radius:999px;
  font-size:14px;color:var(--text-muted);white-space:nowrap;border:1px solid transparent;
  transition:background var(--trans),color var(--trans);
}
.pill:hover{background:var(--bg-alt);color:var(--ink);}
.pill.active{background:var(--ink);color:#fff;}
.pill.active:hover{color:#fff;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);border:1.5px solid transparent;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background var(--trans),color var(--trans),border-color var(--trans),transform var(--trans),box-shadow var(--trans);
}
.btn-primary{background:var(--action);color:#fff;box-shadow:0 8px 20px -12px rgba(226,92,51,.75);}
.btn-primary:hover{background:var(--action-hover);color:#fff;}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink);}
.btn-ghost:hover{background:var(--action-soft);border-color:var(--action);color:var(--action-hover);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:#fff;color:var(--ink);}
.btn-light:hover{background:var(--bg-alt);color:var(--ink);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;color:var(--ink);}
.btn-text:hover{color:var(--action);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;}

/* ============ 面包屑 ============ */
.crumb{font-size:13px;color:var(--text-muted);padding:18px 0 0;}
.crumb a{color:var(--text-muted);}
.crumb a:hover{color:var(--action);}
.crumb .sep{margin:0 7px;color:#C6BBA9;}
.crumb .current{color:var(--text-muted);}

/* ============ 页头 ============ */
.page-hero{padding:34px 0 52px;border-bottom:1px solid var(--line);}
.hero-grid{display:grid;grid-template-columns:1fr 420px;gap:52px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;
  color:#6B4A12;background:var(--accent);padding:4px 12px;border-radius:999px;margin-bottom:18px;
}
.page-hero h1{font-size:40px;line-height:1.3;margin-bottom:18px;}
.lede{font-size:17px;color:var(--text-muted);max-width:620px;margin-bottom:14px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line);margin-top:26px;padding-top:20px;}
.stat{flex:1 1 120px;padding-right:20px;margin-right:20px;border-right:1px solid var(--line);}
.stat:last-child{border-right:0;margin-right:0;padding-right:0;}
.stat b{display:block;font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:24px;color:var(--ink);line-height:1.2;}
.stat span{font-size:13px;color:var(--text-muted);}
.hero-figure{position:relative;}
.hero-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;box-shadow:var(--shadow-1);}
.hero-badge{
  position:absolute;right:14px;bottom:14px;background:var(--accent);color:#3A2A05;
  font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;
}

/* ============ 主体布局 ============ */
.layout{display:grid;grid-template-columns:240px 1fr;gap:52px;padding:60px 0 40px;align-items:start;}
.toc{position:sticky;top:120px;}
.toc h3{font-size:13px;letter-spacing:.08em;color:var(--text-muted);font-weight:700;margin-bottom:12px;}
.toc-nav{border-left:2px solid var(--line);}
.toc-nav a{
  display:block;padding:9px 0 9px 14px;margin-left:-2px;
  border-left:3px solid transparent;font-size:14px;color:var(--text-muted);
}
.toc-nav a:hover{color:var(--ink);border-left-color:var(--line);}
.toc-nav a.active{color:var(--ink);font-weight:700;border-left-color:var(--action);}
.toc-tip{
  margin-top:24px;background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-card);
  padding:16px 18px;font-size:13px;color:var(--text-muted);line-height:1.7;
}

/* ============ 长文 ============ */
.prose{max-width:820px;}
.prose section{padding-bottom:14px;}
.prose h2{
  font-size:28px;line-height:1.35;margin:52px 0 18px;padding-left:14px;
  border-left:4px solid var(--action);
}
.prose section:first-of-type h2{margin-top:0;}
.prose h3{font-size:19px;margin:30px 0 12px;}
.prose p{font-size:17px;line-height:1.9;margin-bottom:1.1em;color:var(--text);}
.prose ul,.prose ol{padding-left:22px;margin:0 0 1.3em;}
.prose li{font-size:16.5px;line-height:1.85;margin-bottom:.55em;color:var(--text);}
.prose li::marker{color:var(--action);font-weight:700;}
.callout{
  background:var(--bg-alt);border-left:3px solid var(--ink);border-radius:0 var(--r-img) var(--r-img) 0;
  padding:18px 22px;margin:0 0 1.4em;font-size:15.5px;color:var(--ink-2);line-height:1.85;
}
.figure{margin:34px 0;}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover;box-shadow:var(--shadow-1);}
.figure figcaption{font-size:13px;color:var(--text-muted);text-align:center;margin-top:10px;}
ol.steps{list-style:none;padding:0;counter-reset:step;margin:0 0 1.4em;}
ol.steps li{counter-increment:step;position:relative;padding-left:56px;margin-bottom:24px;}
ol.steps li::before{
  content:counter(step,decimal-leading-zero);position:absolute;left:0;top:0;
  font-family:var(--mono);font-size:21px;font-weight:700;color:var(--action);line-height:1.4;
}
ol.steps li b{display:block;font-size:17px;margin-bottom:4px;color:var(--ink);}
ol.steps li span{font-size:15.5px;color:var(--text-muted);line-height:1.8;}

/* ============ 窄版 CTA 条 ============ */
.cta-strip{
  margin:48px 0 8px;border-radius:var(--r-card);padding:26px 30px;color:#fff;
  background-color:var(--ink);
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.055) 0 8px,transparent 8px 16px);
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.cta-strip h3{font-size:20px;color:#fff;margin-bottom:6px;}
.cta-strip p{font-size:14px;color:rgba(255,255,255,.72);}

/* ============ FAQ ============ */
.faq-section{background:var(--bg-alt);border-top:1px solid var(--line);padding:76px 0;}
.faq-grid{display:grid;grid-template-columns:300px 1fr;gap:52px;align-items:start;}
.faq-intro h2{font-size:28px;margin-bottom:14px;}
.faq-intro p{font-size:15px;color:var(--text-muted);}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);margin-bottom:12px;overflow:hidden;transition:box-shadow var(--trans);
}
.faq-item:hover{box-shadow:var(--shadow-2);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;display:flex;align-items:flex-start;gap:12px;
  font-size:17px;font-weight:700;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .num{font-family:var(--mono);font-size:14px;color:var(--action);padding-top:3px;}
.faq-item summary .arrow{margin-left:auto;flex:0 0 auto;transition:transform var(--trans);color:var(--text-muted);padding-top:3px;}
.faq-item[open] summary .arrow{transform:rotate(180deg);}
.faq-answer{
  margin:0 22px 20px;padding:2px 0 2px 16px;border-left:3px solid var(--action);
  font-size:15px;line-height:1.8;color:var(--text-muted);
}

/* ============ 底部 CTA 带 ============ */
.cta-band{background:var(--surface);border-top:1px solid var(--line);padding:38px 0;}
.cta-band .container{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.cta-band h3{font-size:20px;color:var(--ink);}
.cta-band p{font-size:14px;color:var(--text-muted);margin-top:4px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:#fff;padding:66px 0 24px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;}
.footer-brand:hover{color:#fff;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.footer-desc{color:rgba(255,255,255,.7);font-size:14px;line-height:1.8;margin-top:16px;max-width:330px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;}
.footer-links{list-style:none;margin:0;padding:0;}
.footer-links li{font-size:14px;color:rgba(255,255,255,.7);margin-bottom:11px;line-height:1.7;}
.footer-links a{color:rgba(255,255,255,.7);}
.footer-links a:hover{color:var(--accent);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);margin-top:46px;padding-top:20px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-figure{order:2;}
  .layout{grid-template-columns:1fr;gap:30px;padding:44px 0 30px;}
  .toc{position:static;}
  .toc-nav{border-left:0;display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px;}
  .toc-nav::-webkit-scrollbar{display:none;}
  .toc-nav a{
    margin-left:0;border-left:0;border-bottom:3px solid transparent;padding:7px 13px;white-space:nowrap;
    color:var(--text-muted);
  }
  .toc-nav a:hover{border-left-color:transparent;border-bottom-color:var(--line);background:var(--bg-alt);border-radius:8px;}
  .toc-nav a.active{border-left-color:transparent;border-bottom-color:var(--action);}
  .toc-tip{display:none;}
  .faq-grid{grid-template-columns:1fr;gap:26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .nav-main{height:auto;min-height:56px;flex-wrap:wrap;padding:9px 0;gap:12px;}
  .brand{font-size:16px;}
  .search{display:none;}
  .search-toggle{display:inline-flex;margin-left:auto;}
  .nav-main.search-open .search{
    display:flex;order:4;flex:1 0 100%;max-width:none;margin:0;
  }
  .nav-main.search-open .search-toggle{margin-left:auto;}
  .page-hero{padding:24px 0 38px;}
  .page-hero h1{font-size:28px;}
  .lede{font-size:15.5px;}
  .stat b{font-size:20px;}
  .prose h2{font-size:22px;margin:40px 0 14px;}
  .prose p{font-size:16px;}
  .prose li{font-size:15.5px;}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:22px;}
  .cta-strip .btn{width:100%;}
  .faq-section{padding:56px 0;}
  .faq-intro h2{font-size:22px;}
  .cta-band .container{flex-direction:column;align-items:flex-start;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
}
@media (max-width:520px){
  .card-grid{grid-template-columns:1fr;}
  .hero-stats{gap:14px 0;}
  .stat{flex:1 1 46%;border-right:0;padding-right:0;margin-right:0;}
  .stat:nth-child(odd){padding-right:16px;border-right:1px solid var(--line);}
  .topbar-brand .tag-live{display:none;}
}

/* roulang page: category2 */
:root{
  --ink:#12333A; --ink-2:#1C4A50; --action:#E25C33; --action-hover:#C74A24;
  --action-soft:rgba(226,92,51,.10); --accent:#F2B431;
  --bg:#FBF7F1; --bg-alt:#F3ECE1; --surface:#FFFFFF;
  --text:#1D2A2C; --text-muted:#5C6B6E; --line:#E4DACD;
  --ok:#2F8F6B; --warn:#C0392B;
  --radius:14px; --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(18,51,58,.06),0 8px 24px -12px rgba(18,51,58,.18);
  --shadow-2:0 12px 32px -14px rgba(18,51,58,.28);
  --ease:180ms ease-out;
  --mono:ui-monospace,"DIN Alternate",SFMono-Regular,Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-padding-top:120px}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--ink);text-decoration:none;transition:color var(--ease),background-color var(--ease)}
a:hover{color:var(--action)}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:800;letter-spacing:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
input,button,select{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 顶部限时条 ---------- */
.topbar{position:sticky;top:0;z-index:70;background:var(--ink);color:#fff;height:40px;overflow:hidden;transition:height var(--ease),opacity var(--ease)}
body.scrolled .topbar{height:0;opacity:0}
.topbar .container{display:flex;align-items:center;gap:14px;height:40px;font-size:13px}
.topbar-brand{display:flex;align-items:center;gap:8px;font-weight:600;white-space:nowrap}
.topbar-brand svg{opacity:.85}
.tag-live{background:var(--accent);color:#3B2A04;font-size:12px;font-weight:700;padding:2px 10px;border-radius:999px;white-space:nowrap}
.countdown{display:flex;align-items:center;gap:6px;margin-left:auto;font-family:var(--mono);font-variant-numeric:tabular-nums;letter-spacing:.5px}
.countdown b{font-weight:700;color:#fff}
.countdown span.unit{opacity:.65;font-size:12px}
.topbar-link{border:1px solid rgba(255,255,255,.5);color:#fff;border-radius:999px;padding:3px 12px;font-size:12px;white-space:nowrap}
.topbar-link:hover{background:rgba(255,255,255,.12);color:#fff}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:40px;z-index:60;background:rgba(251,247,241,.97);border-bottom:1px solid var(--line);transition:top var(--ease);backdrop-filter:blur(8px)}
body.scrolled .site-header{top:0}
.nav-main{display:flex;align-items:center;gap:20px;height:64px;position:relative}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--ink);white-space:nowrap}
.brand:hover{color:var(--ink)}
.brand-mark{width:28px;height:28px;border-radius:8px;background:var(--ink);color:#fff;display:grid;place-items:center;flex:none}
.search{display:flex;align-items:center;gap:8px;height:40px;width:320px;margin-left:auto;background:#fff;border:1px solid var(--line);border-radius:999px;padding:0 14px;color:var(--text-muted);transition:border-color var(--ease),box-shadow var(--ease)}
.search input{border:0;outline:0;background:transparent;width:100%;font-size:14px}
.search:focus-within{border-color:var(--ink);box-shadow:0 0 0 3px rgba(18,51,58,.10)}
.search-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--ink);place-items:center;margin-left:auto}
.nav-channels{border-top:1px solid var(--line);background:rgba(255,255,255,.55)}
.channels{display:flex;gap:8px;overflow-x:auto;padding:7px 0;scrollbar-width:none}
.channels::-webkit-scrollbar{display:none}
.pill{display:inline-block;white-space:nowrap;padding:6px 14px;border-radius:999px;font-size:14px;color:var(--text-muted);border:1px solid transparent;transition:all var(--ease)}
.pill:hover{background:var(--bg-alt);color:var(--ink)}
.pill.active{background:var(--ink);color:#fff;font-weight:600}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:42px;padding:0 20px;border-radius:var(--radius-sm);font-size:15px;font-weight:600;border:1px solid transparent;transition:all var(--ease);white-space:nowrap}
.btn-primary{background:var(--action);color:#fff}
.btn-primary:hover{background:var(--action-hover);color:#fff}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:var(--action-soft);color:var(--ink)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:var(--bg-alt);color:var(--ink)}
.btn-block{width:100%}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;pointer-events:none}

/* ---------- 页头 ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);padding:16px 0}
.crumbs a{color:var(--text-muted)}
.crumbs a:hover{color:var(--action)}
.crumbs .sep{opacity:.6}
.crumbs .current{color:var(--text-muted)}
.page-head{position:relative;border-bottom:1px solid var(--line);background:linear-gradient(180deg,rgba(251,247,241,.72),rgba(251,247,241,.97)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat}
.page-head .inner{padding-bottom:44px}
.kicker{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);color:var(--ink);font-size:13px;font-weight:600;padding:5px 14px;border-radius:999px;box-shadow:var(--shadow-1)}
.kicker i{width:6px;height:6px;border-radius:50%;background:var(--action);display:inline-block}
.page-head h1{font-size:40px;margin:18px 0 14px;max-width:820px}
.page-head .lead{font-size:17px;color:var(--text-muted);max-width:720px}
.stat-strip{display:flex;flex-wrap:wrap;gap:0;margin-top:28px;border-top:1px solid var(--line);padding-top:20px}
.stat-strip .stat{flex:1 1 160px;padding-right:24px;border-right:1px solid var(--line)}
.stat-strip .stat:last-child{border-right:0}
.stat-strip .num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:26px;font-weight:700;color:var(--ink)}
.stat-strip .lab{font-size:13px;color:var(--text-muted)}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0}
.section.alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:28px;position:relative;padding-left:16px}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--action)}
.section-head .sub{font-size:15px;color:var(--text-muted);max-width:640px;margin-top:8px}
.section-head a.link-all{font-size:14px;font-weight:600;white-space:nowrap}

/* ---------- 筛选条 ---------- */
.filter-bar{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-1);padding:14px 16px;display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:-26px;position:relative;z-index:2}
.filter-bar .flabel{font-size:13px;color:var(--text-muted);margin-right:4px}
.chip{padding:6px 14px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:14px;color:var(--text-muted);transition:all var(--ease)}
.chip:hover{border-color:var(--ink);color:var(--ink)}
.chip.active{background:var(--ink);border-color:var(--ink);color:#fff;font-weight:600}

/* ---------- 卡片网格 ---------- */
.grid-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-1);transition:transform var(--ease),box-shadow var(--ease)}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-no{position:absolute;top:10px;left:10px;background:var(--ink);color:#fff;font-family:var(--mono);font-size:12px;padding:3px 9px;border-radius:8px;letter-spacing:.5px}
.card-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1}
.tag{display:inline-block;align-self:flex-start;background:var(--bg-alt);color:var(--ink);font-size:12px;font-weight:600;padding:3px 10px;border-radius:999px}
.card h3{font-size:17px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card p{font-size:14px;line-height:1.75;color:var(--text-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card .meta{font-size:12px;color:var(--text-muted);font-family:var(--mono);font-variant-numeric:tabular-nums}
.link-more{margin-top:auto;font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.link-more:hover{color:var(--action);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px}

/* ---------- 更新说明条 ---------- */
.updates{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.update-item{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--action);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-1);transition:transform var(--ease),box-shadow var(--ease)}
.update-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.update-item .date{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:13px;color:var(--action);font-weight:700}
.update-item h3{font-size:17px;margin:10px 0 8px}
.update-item p{font-size:14px;color:var(--text-muted)}

/* ---------- 互链 ---------- */
.crosslink{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:32px;background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius);padding:18px 20px}
.crosslink .txt{font-size:14px;color:var(--text-muted)}
.crosslink .entry{display:inline-flex;align-items:center;gap:8px;background:var(--ink);color:#fff;font-size:14px;font-weight:600;padding:8px 18px;border-radius:999px;transition:background-color var(--ease)}
.crosslink .entry:hover{background:var(--action);color:#fff}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:start}
.faq-side{position:sticky;top:140px}
.faq-side h2{font-size:28px;position:relative;padding-left:16px}
.faq-side h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--action)}
.faq-side p{margin-top:14px;font-size:14px;color:var(--text-muted)}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:0 20px;box-shadow:var(--shadow-1)}
.faq-item summary{padding:18px 0;font-size:17px;font-weight:700;cursor:pointer;list-style:none;display:flex;gap:12px;align-items:flex-start}
.faq-item summary::-webkit-details-marker{display:none}
.faq-no{font-family:var(--mono);color:var(--action);font-size:14px;min-width:24px;font-weight:700}
.faq-arrow{margin-left:auto;flex:none;color:var(--text-muted);transition:transform var(--ease)}
.faq-item[open] .faq-arrow{transform:rotate(180deg)}
.faq-answer{position:relative;padding:14px 0 20px 36px;border-top:1px solid var(--line);font-size:15px;line-height:1.8;color:var(--text-muted)}
.faq-answer::before{content:"";position:absolute;left:12px;top:18px;bottom:22px;width:3px;border-radius:2px;background:var(--action)}

/* ---------- CTA ---------- */
.cta-band{position:relative;background:var(--ink);color:#fff;overflow:hidden}
.cta-band::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 2px,transparent 2px 12px);pointer-events:none}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:64px 0}
.cta-inner h2{font-size:28px;color:#fff}
.cta-inner .cta-sub{margin-top:14px;color:rgba(255,255,255,.75);font-size:15px;max-width:480px}
.cta-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.cta-points span{border:1px solid rgba(255,255,255,.35);border-radius:999px;padding:5px 14px;font-size:13px;color:rgba(255,255,255,.9)}
.form-card{background:#fff;color:var(--text);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow-2)}
.form-card h3{font-size:19px;margin-bottom:6px}
.form-card .hint{font-size:13px;color:var(--text-muted);margin-bottom:18px}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:var(--text-muted);margin-bottom:6px}
.field input,.field select{width:100%;height:44px;border:1px solid var(--line);border-radius:var(--radius-sm);padding:0 12px;background:#fff;outline:0;transition:border-color var(--ease),box-shadow var(--ease)}
.field input:focus,.field select:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(18,51,58,.10)}
.form-note{font-size:12px;color:var(--text-muted);margin-top:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.78);padding:56px 0 24px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:800}
.footer-brand:hover{color:#fff}
.footer-brand .brand-mark{background:rgba(255,255,255,.14)}
.footer-desc{margin-top:14px;line-height:1.8;color:rgba(255,255,255,.7);max-width:320px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:14px}
.footer-links li{margin-bottom:10px;color:rgba(255,255,255,.7)}
.footer-links a{color:rgba(255,255,255,.78)}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.16);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6)}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .grid-cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .updates{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .faq-side{position:static}
  .cta-inner{grid-template-columns:1fr;gap:32px;padding:56px 0}
  .footer-grid{grid-template-columns:1fr 1fr}
  .page-head h1{font-size:32px}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .section{padding:56px 0}
  .search{display:none}
  .search-toggle{display:grid}
  .nav-main.search-open .search{display:flex;position:absolute;left:16px;right:16px;top:58px;width:auto;z-index:80;box-shadow:var(--shadow-2)}
  .nav-main{height:56px}
  .page-head h1{font-size:28px}
  .page-head .lead{font-size:16px}
  .section-head h2,.faq-side h2,.cta-inner h2{font-size:22px}
  .faq-item summary{font-size:16px}
  .stat-strip .stat{flex:1 1 45%;border-right:0;padding:0 0 14px}
  .crosslink{flex-direction:column;align-items:stretch}
  .crosslink .entry{justify-content:center}
}
@media (max-width:639px){
  .grid-cards{grid-template-columns:1fr}
  .btn-block-sm{width:100%}
}
@media (max-width:480px){
  .countdown .days{display:none}
  .topbar .container{gap:8px}
  .footer-grid{grid-template-columns:1fr}
  body{font-size:15px}
}