/* roulang page: index */
:root{
  --c-brand:#FF7A18;
  --c-brand-700:#D95708;
  --c-brand-50:#FFF2E6;
  --c-ink:#1B2140;
  --c-ink-700:#2C3462;
  --c-accent:#12B3A4;
  --c-spark:#FFD34D;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EEF1F7;
  --c-line:#E4E2DC;
  --c-text:#22252B;
  --c-text-2:#5A606E;
  --c-text-3:#8A8F9B;
  --font:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(27,33,64,.05),0 2px 8px rgba(27,33,64,.05);
  --sh-2:0 10px 28px rgba(27,33,64,.10);
  --bs-body-font-family:var(--font);
  --bs-body-color:var(--c-text);
  --bs-body-bg:var(--c-bg);
  --bs-primary:var(--c-brand);
  --bs-primary-rgb:255,122,24;
  --bs-link-color:var(--c-brand-700);
  --bs-link-hover-color:var(--c-brand);
  --bs-border-radius:var(--r-btn);
  --bs-border-color:var(--c-line);
  --bs-body-font-size:16.5px;
  --bs-body-line-height:1.9;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.9;
  color:var(--c-text);
  background-color:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-brand-700);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-brand);}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-weight:700;}
h1{font-size:clamp(32px,4vw,46px);line-height:1.25;font-weight:800;letter-spacing:0;}
h2{font-size:28px;line-height:1.35;font-weight:700;}
h3{font-size:18px;line-height:1.5;font-weight:700;}
p{margin:0 0 1.1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;}
.container{width:100%;max-width:1200px;padding-left:20px;padding-right:20px;margin-left:auto;margin-right:auto;}
@media (min-width:1400px){.container{max-width:1320px;}}
.section{padding:88px 0;}
.section-alt{background:var(--c-surface-alt);}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{margin-bottom:12px;}
.section-sub{font-size:18px;line-height:1.9;color:var(--c-text-2);margin:0;}
.eyebrow{
  display:inline-block;font-size:13px;line-height:1.6;font-weight:500;
  letter-spacing:.02em;color:var(--c-brand-700);background:var(--c-brand-50);
  border-radius:var(--r-badge);padding:3px 10px;margin-bottom:14px;
}
.eyebrow-accent{color:#0B7C72;background:rgba(18,179,164,.12);}

/* ---------- 按钮 ---------- */
.btn{border-radius:var(--r-btn);font-weight:600;letter-spacing:.02em;border:1.5px solid transparent;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;}
.btn:focus,.btn:active{box-shadow:none !important;}
.btn-brand{background:var(--c-brand);color:#fff;border-color:var(--c-brand);}
.btn-brand:hover{background:var(--c-brand-700);border-color:var(--c-brand-700);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.btn-ghost:hover{background:#fff;color:var(--c-ink);border-color:#fff;transform:translateY(-1px);}
.btn-outline-ink{background:#fff;color:var(--c-ink);border-color:var(--c-ink);}
.btn-outline-ink:hover{background:var(--c-ink);color:#fff;transform:translateY(-1px);}
.btn-link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--c-brand-700);}
.btn-link-arrow svg{transition:transform .18s ease;}
.btn-link-arrow:hover svg{transform:translateX(4px);}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.96);border-bottom:1px solid var(--c-line);}
.site-header.is-stuck{box-shadow:var(--sh-1);}
.topbar{height:56px;display:flex;align-items:center;}
.topbar-inner{display:flex;align-items:center;gap:24px;width:100%;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:28px;height:28px;border-radius:8px;background:var(--c-brand);display:flex;align-items:center;justify-content:center;flex:0 0 28px;}
.brand-mark svg{width:16px;height:16px;stroke:#fff;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:.02em;}
.brand-text em{font-style:normal;font-size:12px;color:var(--c-text-3);letter-spacing:.02em;}
.main-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto;}
.nav-item{position:relative;display:inline-block;padding:8px 12px;font-size:15px;font-weight:600;color:var(--c-text-2);border-radius:var(--r-btn);}
.nav-item:hover{color:var(--c-brand-700);background:var(--c-brand-50);}
.nav-item.active{color:var(--c-ink);}
.nav-item.active::after{content:"";position:absolute;left:12px;right:12px;bottom:-12px;height:3px;background:var(--c-brand);border-radius:2px;}
.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.search-box{position:relative;}
.search-box input{
  height:38px;width:200px;border:1.5px solid var(--c-line);border-radius:var(--r-btn);
  padding:0 12px 0 34px;font-size:14px;color:var(--c-text);background:#fff;transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box input::placeholder{color:var(--c-text-3);}
.search-box input:focus{outline:none;border-color:var(--c-brand);box-shadow:none;}
.search-box svg{position:absolute;left:11px;top:50%;transform:translateY(-50%);width:16px;height:16px;stroke:var(--c-text-3);}
.search-icon-btn{display:none;width:38px;height:38px;border:1.5px solid var(--c-line);border-radius:var(--r-btn);background:#fff;align-items:center;justify-content:center;}
.search-icon-btn svg{width:17px;height:17px;stroke:var(--c-ink);}
.menu-toggle{display:none;width:38px;height:38px;border:1.5px solid var(--c-line);border-radius:var(--r-btn);background:#fff;align-items:center;justify-content:center;}
.menu-toggle svg{width:18px;height:18px;stroke:var(--c-ink);}
.hotbar{background:var(--c-surface-alt);border-top:1px solid var(--c-line);}
.hotbar-inner{height:34px;display:flex;align-items:center;gap:10px;overflow:hidden;}
.hot-label{flex:0 0 auto;font-size:13px;font-weight:600;color:var(--c-brand-700);background:var(--c-spark);border-radius:999px;padding:1px 10px;}
.hot-pill{flex:0 0 auto;font-size:13px;color:var(--c-text-2);background:#fff;border:1px solid var(--c-line);border-radius:999px;padding:1px 12px;line-height:1.7;}
.hot-pill:hover{color:var(--c-brand-700);border-color:rgba(255,122,24,.45);}
.hot-more{margin-left:auto;font-size:13px;color:var(--c-text-3);flex:0 0 auto;}
.hot-more:hover{color:var(--c-brand-700);}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--c-ink);color:#F3F1EC;padding:76px 0 80px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:56px 56px;opacity:.5;pointer-events:none;
}
.hero .container{position:relative;z-index:1;}
.hero-copy{max-width:600px;}
.hero-eyebrow{display:inline-block;font-size:13px;letter-spacing:.02em;color:var(--c-spark);border:1px solid rgba(255,211,77,.45);border-radius:999px;padding:3px 12px;margin-bottom:18px;}
.hero h1{color:#fff;margin-bottom:16px;}
.hero-sub{font-size:18px;line-height:1.9;color:rgba(243,241,236,.78);margin-bottom:28px;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-actions .btn{padding:11px 24px;font-size:15.5px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:38px;border-top:1px solid rgba(255,255,255,.14);padding-top:22px;}
.stat b{display:block;font-size:24px;font-weight:800;color:#fff;font-variant-numeric:tabular-nums;line-height:1.4;}
.stat span{font-size:13px;color:rgba(243,241,236,.62);letter-spacing:.02em;}
.hero-visual{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-2);border:1px solid rgba(255,255,255,.14);}
.hero-visual img{width:100%;height:360px;object-fit:cover;border-radius:var(--r-card);}
.hero-float{
  position:absolute;left:18px;bottom:18px;background:#fff;color:var(--c-ink);
  font-size:13px;font-weight:600;border-radius:999px;padding:5px 14px;box-shadow:var(--sh-1);
}

/* ---------- Bento 功能分组 ---------- */
.bento{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.bento-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.bento-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(255,122,24,.35);}
.bento-card.wide{grid-column:span 2;}
.bento-icon{width:44px;height:44px;border-radius:var(--r-btn);background:var(--c-brand-50);display:flex;align-items:center;justify-content:center;margin-bottom:16px;}
.bento-icon svg{width:24px;height:24px;stroke:var(--c-brand-700);fill:none;stroke-width:1.5;}
.bento-card .wide-figure{width:100%;height:150px;object-fit:cover;border-radius:var(--r-img);margin-bottom:18px;}
.bento-card h3{margin-bottom:8px;}
.bento-card p{font-size:15px;line-height:1.85;color:var(--c-text-2);margin-bottom:14px;}
.point-list li{position:relative;padding-left:16px;font-size:14.5px;line-height:1.8;color:var(--c-text-2);margin-bottom:10px;}
.point-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:2px;background:var(--c-brand);}
.bento-card .btn-link-arrow{margin-top:auto;font-size:14.5px;}

/* ---------- 场景切换 ---------- */
.scene-wrap{display:grid;grid-template-columns:300px 1fr;gap:36px;}
.scene-tabs{display:flex;flex-direction:column;gap:8px;}
.scene-tab{
  text-align:left;background:transparent;border:1px solid transparent;border-left:3px solid transparent;
  border-radius:var(--r-btn);padding:14px 16px;font-size:15.5px;font-weight:600;color:var(--c-text-2);
  cursor:pointer;transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.scene-tab:hover{background:#fff;color:var(--c-ink);}
.scene-tab.active{background:var(--c-brand-50);border-color:var(--c-line);border-left-color:var(--c-brand);color:var(--c-ink);}
.scene-tab small{display:block;font-size:13px;font-weight:400;color:var(--c-text-3);margin-top:2px;}
.scene-panel{display:none;}
.scene-panel.active{display:block;}
.scene-body{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);}
.scene-body img{width:100%;height:230px;object-fit:cover;border-radius:var(--r-img);margin-bottom:20px;}
.scene-body h3{margin-bottom:10px;}
.scene-body p{color:var(--c-text-2);font-size:15.5px;}
.accordion-item{border:1px solid var(--c-line);border-radius:var(--r-card) !important;margin-bottom:10px;overflow:hidden;background:#fff;}
.accordion-button{font-size:15.5px;font-weight:600;color:var(--c-ink);background:#fff;padding:16px 18px;box-shadow:none !important;}
.accordion-button:not(.collapsed){background:var(--c-brand-50);color:var(--c-brand-700);}
.accordion-body{font-size:15px;line-height:1.85;color:var(--c-text-2);padding:16px 18px;}

/* ---------- 案例 ---------- */
.case-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:20px;}
.case-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;display:flex;flex-direction:column;}
.case-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(255,122,24,.35);}
.case-card.big{grid-row:span 2;flex-direction:column;}
.case-card img{width:100%;height:180px;object-fit:cover;border-radius:var(--r-img);}
.case-card.big img{height:100%;min-height:240px;border-radius:0;}
.case-body{padding:22px;}
.case-body blockquote{margin:0 0 16px;font-size:15.5px;line-height:1.85;color:var(--c-text-2);border-left:3px solid var(--c-brand);padding-left:14px;}
.case-body h3{font-size:17px;margin-bottom:10px;}
.case-metrics{display:flex;gap:26px;border-top:1px solid var(--c-line);padding-top:14px;}
.case-metrics div b{display:block;font-size:22px;font-weight:800;color:var(--c-accent);font-variant-numeric:tabular-nums;line-height:1.4;}
.case-metrics div span{font-size:13px;color:var(--c-text-3);}
.case-card .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px;}
.tag-chip{font-size:12.5px;color:var(--c-text-2);background:var(--c-surface-alt);border-radius:999px;padding:2px 11px;}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch;}
.price-card{position:relative;background:var(--c-surface);border:1.5px solid var(--c-line);border-radius:var(--r-card);padding:28px 24px;display:flex;flex-direction:column;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;}
.price-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(255,122,24,.35);}
.price-card.featured{border-color:var(--c-ink);box-shadow:var(--sh-2);}
.price-flag{position:absolute;top:-13px;left:24px;background:var(--c-spark);color:#5A3B00;font-size:12.5px;font-weight:700;border-radius:999px;padding:2px 12px;letter-spacing:.02em;}
.price-card h3{margin-bottom:6px;}
.price-desc{font-size:14.5px;color:var(--c-text-2);margin-bottom:18px;}
.price-value{font-size:26px;font-weight:800;color:var(--c-ink);line-height:1.4;margin-bottom:18px;font-variant-numeric:tabular-nums;}
.price-value small{font-size:14px;font-weight:400;color:var(--c-text-3);margin-left:6px;}
.price-list{margin-bottom:22px;}
.price-list li{position:relative;padding-left:24px;font-size:15px;line-height:1.8;color:var(--c-text-2);margin-bottom:10px;}
.price-list li svg{position:absolute;left:0;top:5px;width:16px;height:16px;stroke:var(--c-accent);fill:none;stroke-width:2;}
.price-card .btn{margin-top:auto;width:100%;padding:10px 0;}
.price-note{font-size:13px;color:var(--c-text-3);margin:14px 0 0;}

/* ---------- 最新信息 ---------- */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.filter-pill{font-size:14px;color:var(--c-text-2);background:#fff;border:1px solid var(--c-line);border-radius:999px;padding:5px 16px;}
.filter-pill:hover{color:var(--c-brand-700);border-color:rgba(255,122,24,.45);}
.filter-pill.active{background:var(--c-ink);border-color:var(--c-ink);color:#fff;}
.cms-layout{display:grid;grid-template-columns:1fr 320px;gap:40px;}
.post-list{display:flex;flex-direction:column;}
.post-item{display:flex;gap:18px;padding:18px 0;border-bottom:1px solid var(--c-line);transition:background-color .18s ease;}
.post-item:hover{background:#FBF7F1;}
.post-thumb{flex:0 0 160px;width:160px;height:100px;border-radius:var(--r-img);overflow:hidden;background:#E9E7E1;display:block;}
.post-thumb img{width:100%;height:100%;object-fit:cover;border-radius:var(--r-img);transition:transform .2s ease;}
.post-item:hover .post-thumb img{transform:scale(1.03);}
.thumb-ph{display:block;width:100%;height:100%;background:#E9E7E1;}
.post-body{flex:1 1 auto;min-width:0;}
.post-title{font-size:16.5px;line-height:1.5;font-weight:600;margin:0 0 8px;}
.post-title a{color:var(--c-ink);}
.post-item:hover .post-title a{color:var(--c-brand-700);}
.post-sum{font-size:14.5px;line-height:1.8;color:var(--c-text-2);margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--c-text-3);}
.badge-cat{font-size:14px;font-weight:500;color:var(--c-brand-700);background:var(--c-brand-50);border-radius:var(--r-badge);padding:1px 9px;letter-spacing:.02em;}
.meta-time{display:inline-flex;align-items:center;gap:5px;}
.meta-time svg{width:14px;height:14px;stroke:var(--c-text-3);fill:none;stroke-width:1.5;}
.post-link{margin-left:auto;font-size:13px;color:var(--c-brand-700);}
.empty-state{text-align:center;padding:56px 20px;border:1px dashed var(--c-line);border-radius:var(--r-card);background:#fff;color:var(--c-text-2);}
.empty-state svg{width:32px;height:32px;stroke:var(--c-text-3);fill:none;stroke-width:1.5;margin:0 auto 12px;display:block;}
.empty-state p{font-size:15px;margin:0 0 8px;}
.cms-side{display:flex;flex-direction:column;gap:20px;}
.side-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);}
.side-title{font-size:16px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--c-line);}
.hot-list li{padding:10px 0;border-bottom:1px dashed var(--c-line);}
.hot-list li:last-child{border-bottom:0;padding-bottom:0;}
.hot-list a{display:block;font-size:14.5px;line-height:1.7;color:var(--c-ink);font-weight:500;}
.hot-list a:hover{color:var(--c-brand-700);}
.hot-list a em{display:block;font-style:normal;font-size:13px;color:var(--c-text-3);font-weight:400;margin-top:2px;}
.side-cta{background:var(--c-ink);border-color:var(--c-ink);color:rgba(243,241,236,.8);}
.side-cta h3{color:#fff;font-size:17px;margin-bottom:8px;}
.side-cta p{font-size:14px;line-height:1.8;color:rgba(243,241,236,.7);margin-bottom:16px;}
.side-cta .btn{width:100%;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;}
.faq-q{width:100%;text-align:left;background:#fff;border:0;padding:18px 20px;font-size:16px;font-weight:700;color:var(--c-ink);display:flex;justify-content:space-between;align-items:center;gap:14px;cursor:pointer;transition:background-color .18s ease;}
.faq-q:hover{background:#FBF7F1;}
.faq-q .plus{position:relative;flex:0 0 16px;width:16px;height:16px;}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;background:var(--c-brand-700);border-radius:1px;transition:transform .2s ease;}
.faq-q .plus::before{left:0;top:7px;width:16px;height:2px;}
.faq-q .plus::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.open .plus::after{transform:scaleY(0);}
.faq-a{display:none;padding:0 20px 18px;font-size:15px;line-height:1.85;color:var(--c-text-2);background:var(--c-surface-alt);}
.faq-item.open .faq-a{display:block;}

/* ---------- 底部 CTA ---------- */
.cta-band{background:var(--c-ink);color:#F3F1EC;padding:56px 0;}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;}
.cta-inner h2{color:#fff;font-size:26px;margin-bottom:8px;}
.cta-inner p{font-size:15.5px;color:rgba(243,241,236,.72);margin:0;}
.cta-actions{display:flex;flex-direction:column;gap:10px;align-items:flex-start;}
.cta-actions .btn{padding:12px 28px;}
.cta-actions small{font-size:13px;color:rgba(243,241,236,.55);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#C9CEE0;padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text em{color:rgba(201,206,224,.6);}
.footer-desc{font-size:14.5px;line-height:1.85;color:rgba(201,206,224,.75);margin:16px 0 12px;}
.footer-domain{font-size:13px;color:rgba(201,206,224,.5);}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700;letter-spacing:.02em;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14.5px;color:#C9CEE0;}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;}
.footer-bottom-inner{display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;font-size:13px;color:rgba(201,206,224,.6);}
.footer-friend a{color:rgba(201,206,224,.6);margin-right:14px;}
.footer-friend a:hover{color:#fff;text-decoration:underline;}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:var(--r-img);
  background:var(--c-ink);border:0;display:none;align-items:center;justify-content:center;z-index:1040;
  box-shadow:var(--sh-2);
}
.to-top.show{display:flex;}
.to-top svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:1.8;}

/* ---------- Offcanvas ---------- */
.offcanvas{width:88%;border-radius:0;}
.offcanvas-header{border-bottom:1px solid var(--c-line);}
.offcanvas-body{padding:20px;}
.m-search{position:relative;margin-bottom:18px;}
.m-search input{width:100%;height:44px;border:1.5px solid var(--c-line);border-radius:var(--r-btn);padding:0 12px 0 36px;font-size:15px;}
.m-search input:focus{outline:none;border-color:var(--c-brand);}
.m-search svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;stroke:var(--c-text-3);}
.m-nav li a{display:block;padding:13px 4px;font-size:15.5px;font-weight:600;color:var(--c-ink);border-bottom:1px solid var(--c-line);}
.m-nav li a.active{color:var(--c-brand-700);}
.m-nav li a small{display:block;font-size:13px;font-weight:400;color:var(--c-text-3);margin-top:2px;}
.m-cta{margin-top:20px;width:100%;padding:12px 0;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .main-nav{display:none;}
  .search-box input{width:160px;}
  .header-tools .btn-brand{display:none;}
  .menu-toggle{display:inline-flex;}
  .scene-wrap{grid-template-columns:1fr;gap:20px;}
  .scene-tabs{flex-direction:row;overflow-x:auto;padding-bottom:6px;}
  .scene-tab{flex:0 0 auto;border-left:0;border-bottom:3px solid transparent;}
  .scene-tab.active{border-left:0;border-bottom-color:var(--c-brand);}
  .cms-layout{grid-template-columns:1fr;gap:32px;}
  .cms-side{flex-direction:row;}
  .cms-side .side-card{flex:1 1 0;}
}
@media (max-width:991px){
  .section{padding:64px 0;}
  .bento{grid-template-columns:repeat(2,1fr);}
  .bento-card.wide{grid-column:span 2;}
  .case-grid{grid-template-columns:1fr 1fr;}
  .case-card.big{grid-column:span 2;grid-row:auto;}
  .case-card.big img{height:240px;}
  .price-grid{grid-template-columns:1fr;}
  .faq-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .hotbar{display:none;}
  .hero{padding:56px 0 60px;}
  .hero-visual img{height:280px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  h2{font-size:23px;}
  .section{padding:48px 0;}
  .bento{grid-template-columns:1fr;}
  .bento-card.wide{grid-column:span 1;}
  .case-grid{grid-template-columns:1fr;}
  .case-card.big{grid-column:span 1;}
  .hero-stats{gap:22px;}
  .hero h1{font-size:30px;}
  .search-box{display:none;}
  .search-icon-btn{display:inline-flex;}
  .post-item{flex-direction:column;gap:12px;}
  .post-thumb{flex:0 0 auto;width:100%;height:170px;}
  .post-link{margin-left:0;}
  .cms-side{flex-direction:column;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .hotbar-inner{overflow-x:auto;}
  .to-top{right:16px;bottom:16px;}
}
@media (max-width:519px){
  .footer-grid{grid-template-columns:1fr;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
}

/* roulang page: article */
:root{
  --c-brand:#FF7A18;
  --c-brand-700:#D95708;
  --c-brand-50:#FFF2E6;
  --c-ink:#1B2140;
  --c-ink-700:#2C3462;
  --c-accent:#12B3A4;
  --c-spark:#FFD34D;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EEF1F7;
  --c-line:#E4E2DC;
  --c-text:#22252B;
  --c-text-2:#5A606E;
  --c-text-3:#8A8F9B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(27,33,64,.05),0 2px 8px rgba(27,33,64,.05);
  --sh-2:0 10px 28px rgba(27,33,64,.10);
  --bs-body-bg:var(--c-bg);
  --bs-body-color:var(--c-text);
  --bs-primary:var(--c-brand);
  --bs-border-color:var(--c-line);
  --bs-link-color:var(--c-brand-700);
  --bs-link-hover-color:var(--c-brand-700);
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-brand-700);text-decoration:none;transition:color .18s ease,border-color .18s ease}
a:hover{color:var(--c-brand-700)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1400px){.container-x{max-width:1320px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.header-top{display:flex;align-items:center;gap:22px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:9px;background:var(--c-ink);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px;stroke:var(--c-brand);fill:none}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:800;color:var(--c-ink);letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--c-text-3);letter-spacing:.02em}
.main-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
.main-nav::-webkit-scrollbar{display:none}
.main-nav .nav-item{
  position:relative;display:inline-block;white-space:nowrap;
  padding:8px 12px;font-size:15px;font-weight:500;color:var(--c-text-2);
  border-radius:var(--r-badge);
}
.main-nav .nav-item:hover{color:var(--c-brand-700);background:var(--c-brand-50)}
.main-nav .nav-item.active{color:var(--c-ink);font-weight:700}
.main-nav .nav-item.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-14px;height:3px;
  background:var(--c-brand);border-radius:2px;
}
.header-tools{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.search-box{position:relative;width:200px}
.search-box input{
  width:100%;height:38px;padding:0 36px 0 14px;font-size:14px;
  border:1.5px solid var(--c-line);border-radius:var(--r-btn);
  background:var(--c-surface);color:var(--c-text);outline:none;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box input::placeholder{color:var(--c-text-3)}
.search-box input:focus{border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(255,122,24,.12)}
.search-box .search-ico{position:absolute;right:11px;top:50%;transform:translateY(-50%);width:18px;height:18px;stroke:var(--c-text-3);fill:none}
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:38px;padding:0 18px;font-size:14.5px;font-weight:600;
  background:var(--c-brand);color:#fff;border:0;border-radius:var(--r-btn);
  transition:background .18s ease,transform .18s ease;
}
.btn-cta:hover{background:var(--c-brand-700);color:#fff;transform:translateY(-1px)}
.menu-toggle{
  display:none;width:40px;height:40px;border:1.5px solid var(--c-line);border-radius:var(--r-btn);
  background:var(--c-surface);align-items:center;justify-content:center;
}
.menu-toggle svg{width:20px;height:20px;stroke:var(--c-ink);fill:none;stroke-width:1.8}
.hotbar{display:flex;align-items:center;gap:10px;height:36px;overflow:hidden;border-top:1px solid var(--c-line)}
.hotbar .hot-label{
  flex:0 0 auto;font-size:12.5px;font-weight:700;color:var(--c-brand-700);
  background:var(--c-brand-50);border-radius:var(--r-badge);padding:2px 8px;
}
.hotbar .hot-list{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none;flex:1 1 auto}
.hotbar .hot-list::-webkit-scrollbar{display:none}
.hot-pill{
  flex:0 0 auto;font-size:13px;color:var(--c-text-2);background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-pill);padding:2px 12px;
  transition:color .18s ease,border-color .18s ease;
}
.hot-pill:hover{color:var(--c-brand-700);border-color:rgba(255,122,24,.45)}
.hotbar .hot-more{flex:0 0 auto;font-size:13px;color:var(--c-text-3)}
.hotbar .hot-more:hover{color:var(--c-brand-700)}

/* ---------- Breadcrumb ---------- */
.crumb-bar{padding:18px 0 6px}
.crumb{font-size:13px;color:var(--c-text-3);display:flex;flex-wrap:wrap;align-items:center;gap:6px}
.crumb a{color:var(--c-text-3)}
.crumb a:hover{color:var(--c-brand-700);text-decoration:underline}
.crumb .sep{color:#C4C8D2}
.crumb .cur{color:var(--c-text-2)}

/* ---------- Article head ---------- */
.article-head{padding:6px 0 26px}
.badge-cat{
  display:inline-block;font-size:14px;font-weight:500;letter-spacing:.02em;
  color:var(--c-brand-700);background:var(--c-brand-50);
  border-radius:var(--r-badge);padding:4px 12px;
}
.article-title{
  font-size:clamp(26px,3.2vw,36px);line-height:1.35;font-weight:800;
  color:var(--c-ink);margin:16px 0 14px;letter-spacing:.01em;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:16px;font-size:13px;color:var(--c-text-3)}
.meta-row .m{display:inline-flex;align-items:center;gap:6px}
.meta-row svg{width:15px;height:15px;stroke:currentColor;fill:none;stroke-width:1.6}
.article-lead{
  margin-top:22px;background:var(--c-surface-alt);border-left:3px solid var(--c-brand);
  border-radius:0 var(--r-card) var(--r-card) 0;padding:18px 22px;
  font-size:18px;line-height:1.9;color:var(--c-text-2);
}

/* ---------- Layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 320px;
  gap:40px;align-items:start;padding-bottom:64px;
}
.reader{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:38px 40px;box-shadow:var(--sh-1);min-width:0;
}
.article-body{font-size:17px;line-height:1.95;color:var(--c-text)}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em}
.article-body h2{
  font-size:24px;line-height:1.45;font-weight:700;color:var(--c-ink);
  margin:40px 0 16px;padding-left:12px;border-left:4px solid var(--c-brand);border-radius:2px;
}
.article-body h3{font-size:19px;line-height:1.5;font-weight:700;color:var(--c-ink);margin:28px 0 12px}
.article-body h4{font-size:17px;font-weight:700;color:var(--c-ink-700);margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:22px}
.article-body li{margin-bottom:10px}
.article-body ul li::marker{color:var(--c-brand)}
.article-body ol li::marker{color:var(--c-brand-700);font-weight:700}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;background:var(--c-surface-alt);
  border-left:3px solid var(--c-brand);border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--c-text-2);font-size:16.5px;line-height:1.9;
}
.article-body img{border-radius:var(--r-img);margin:22px 0;width:100%}
.article-body figure{margin:22px 0}
.article-body figcaption,.article-body .caption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:8px}
.article-body a{color:var(--c-brand-700);border-bottom:1px solid rgba(255,122,24,.35)}
.article-body a:hover{color:var(--c-brand);border-bottom-color:var(--c-brand)}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:22px 0;font-size:15.5px}
.article-body table th,.article-body table td{border:1px solid var(--c-line);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body table th{background:var(--c-surface-alt);color:var(--c-ink-700);font-weight:700}
.article-body pre{
  background:var(--c-ink);color:#E6E9F5;padding:18px;border-radius:var(--r-img);
  overflow-x:auto;font-size:14px;line-height:1.75;margin:22px 0;
}
.article-body code{background:var(--c-surface-alt);border-radius:4px;padding:2px 6px;font-size:14.5px}
.article-body pre code{background:none;padding:0;color:inherit}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:32px 0}

/* ---------- Tags / post nav ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:34px 0 26px;align-items:center}
.tag-row .tag-title{font-size:13px;color:var(--c-text-3)}
.tag{
  display:inline-block;font-size:13.5px;color:var(--c-text-2);
  background:var(--c-surface-alt);border-radius:var(--r-pill);padding:4px 14px;
}
.tag:hover{color:var(--c-brand-700);background:var(--c-brand-50)}
.back-row{margin:0 0 30px}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 20px;
  font-size:15px;font-weight:600;color:var(--c-ink);background:var(--c-surface);
  border:1.5px solid var(--c-ink);border-radius:var(--r-btn);
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.btn-ghost:hover{background:var(--c-ink);color:#fff;transform:translateY(-1px)}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding-top:26px;border-top:1px solid var(--c-line)}
.post-nav-card{
  display:block;padding:18px 20px;background:var(--c-surface-alt);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-nav-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(255,122,24,.35)}
.pn-label{display:block;font-size:12.5px;color:var(--c-text-3);margin-bottom:6px}
.pn-title{display:block;font-size:16px;font-weight:600;line-height:1.5;color:var(--c-ink)}

/* ---------- Sidebar ---------- */
.sidebar{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px;min-width:0}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-1);
}
.side-card h3{
  font-size:15px;font-weight:700;color:var(--c-ink);margin:0 0 14px;
  padding-bottom:12px;border-bottom:1px solid var(--c-line);letter-spacing:.02em;
}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-link{
  display:block;font-size:14px;line-height:1.6;color:var(--c-text-2);
  padding:7px 10px;border-left:2px solid transparent;border-radius:0 6px 6px 0;
}
.toc-link:hover{color:var(--c-brand-700);background:var(--c-brand-50);border-left-color:var(--c-brand)}
.toc-link.toc-sub{padding-left:22px;font-size:13.5px;color:var(--c-text-3)}
.toc-empty{font-size:13.5px;color:var(--c-text-3)}
.hot-list{display:flex;flex-direction:column}
.hot-item{display:block;padding:11px 0;border-bottom:1px solid var(--c-line)}
.hot-item:last-child{border-bottom:0;padding-bottom:0}
.hot-item .hi-title{display:block;font-size:15px;line-height:1.55;font-weight:600;color:var(--c-text)}
.hot-item .hi-time{display:block;font-size:12.5px;color:var(--c-text-3);margin-top:4px}
.hot-item:hover .hi-title{color:var(--c-brand-700)}
.side-cta{background:var(--c-ink);border-color:var(--c-ink)}
.side-cta h3{color:#fff;border-bottom-color:rgba(255,255,255,.16)}
.side-cta p{font-size:14.5px;line-height:1.8;color:#C9CEE0;margin:0 0 16px}
.side-cta .btn-cta{width:100%}

/* ---------- Related ---------- */
.related{padding:8px 0 72px}
.sec-head{margin-bottom:26px}
.sec-head h2{font-size:28px;line-height:1.35;font-weight:700;color:var(--c-ink);margin:0 0 10px}
.sec-head p{font-size:18px;line-height:1.8;color:var(--c-text-2);margin:0}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(255,122,24,.35)}
.rel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#E9EBF1}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.03)}
.rel-body{padding:18px 20px 20px}
.rel-badge{
  display:inline-block;font-size:12.5px;font-weight:500;color:var(--c-accent);
  background:rgba(18,179,164,.10);border-radius:var(--r-badge);padding:2px 10px;margin-bottom:10px;
}
.rel-title{font-size:17px;line-height:1.5;font-weight:600;color:var(--c-ink);margin:0 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card:hover .rel-title{color:var(--c-brand-700)}
.rel-time{font-size:12.5px;color:var(--c-text-3)}

/* ---------- CTA band ---------- */
.cta-band{background:var(--c-ink);border-radius:var(--r-card);padding:40px 44px;margin-bottom:72px}
.cta-band h2{font-size:26px;line-height:1.4;font-weight:700;color:#fff;margin:0 0 10px}
.cta-band p{font-size:16.5px;line-height:1.85;color:#C9CEE0;margin:0 0 22px;max-width:660px}
.cta-note{font-size:13px;color:#8A90A8;margin-top:14px}

/* ---------- Empty ---------- */
.empty-state{
  background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;margin-bottom:64px;
}
.empty-state svg{width:40px;height:40px;stroke:var(--c-text-3);fill:none;stroke-width:1.5;margin-bottom:14px}
.empty-state h2{font-size:20px;font-weight:700;color:var(--c-ink);margin:0 0 8px}
.empty-state p{font-size:15px;color:var(--c-text-2);margin:0 0 18px}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-ink);color:#C9CEE0;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:36px}
.site-footer .brand-text strong{color:#fff}
.site-footer .brand-text em{color:#8A90A8}
.site-footer .brand-mark{background:rgba(255,255,255,.08)}
.footer-desc{font-size:14px;line-height:1.85;color:#C9CEE0;margin:16px 0 10px;max-width:340px}
.footer-domain{font-size:13px;color:#8A90A8;margin:0}
.site-footer h4{font-size:15px;font-weight:700;color:#fff;margin:0 0 16px;letter-spacing:.02em}
.footer-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:#C9CEE0}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0}
.footer-bottom-inner{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;font-size:13px;color:#8A90A8}
.footer-friend{display:flex;flex-wrap:wrap;gap:14px}
.footer-friend a{color:#8A90A8}
.footer-friend a:hover{color:#fff}

/* ---------- Back to top ---------- */
#backTop{
  position:fixed;right:22px;bottom:26px;width:48px;height:48px;border:0;
  border-radius:var(--r-img);background:var(--c-ink);color:#fff;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;z-index:1040;
}
#backTop.show{opacity:1;visibility:visible;transform:translateY(0)}
#backTop svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:2}

/* ---------- Offcanvas ---------- */
.offcanvas{background:var(--c-surface);width:88%!important}
.offcanvas-header{border-bottom:1px solid var(--c-line);padding:16px 20px}
.offcanvas-title{font-size:16px;font-weight:700;color:var(--c-ink)}
.offcanvas-body{padding:20px}
.oc-search{width:100%;height:44px;padding:0 14px;font-size:15px;border:1.5px solid var(--c-line);border-radius:var(--r-btn);margin-bottom:18px}
.oc-search:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(255,122,24,.12)}
.oc-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:20px}
.oc-nav a{
  font-size:16px;font-weight:600;color:var(--c-text-2);padding:12px 14px;
  border-radius:var(--r-btn);background:var(--c-bg);
}
.oc-nav a:hover{background:var(--c-brand-50);color:var(--c-brand-700)}
.oc-nav a.active{color:var(--c-ink);background:var(--c-brand-50);border-left:3px solid var(--c-brand)}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .header-top{gap:14px}
  .search-box{width:160px}
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:30px}
}
@media (max-width:991px){
  .main-nav,.search-box,.hotbar{display:none}
  .menu-toggle{display:inline-flex}
  .header-top{height:60px}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .sidebar{position:static}
  .reader{padding:30px 26px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .related{padding-bottom:56px}
  .cta-band{padding:32px 28px;margin-bottom:56px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .article-body{font-size:16px;line-height:1.9}
  .article-title{font-size:24px}
  .article-lead{font-size:16.5px;padding:16px 18px}
  .reader{padding:24px 18px}
  .article-body h2{font-size:21px;margin-top:34px}
  .article-body h3{font-size:18px}
  .post-nav{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .cta-band{border-radius:12px;padding:26px 20px;margin-bottom:48px}
  .cta-band h2{font-size:21px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .cta-band .btn-cta{width:100%}
}

/* roulang page: category1 */
:root{
  --c-brand:#FF7A18;
  --c-brand-700:#D95708;
  --c-brand-50:#FFF2E6;
  --c-ink:#1B2140;
  --c-ink-700:#2C3462;
  --c-accent:#12B3A4;
  --c-accent-50:#E6F7F5;
  --c-spark:#FFD34D;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EEF1F7;
  --c-line:#E4E2DC;
  --c-text:#22252B;
  --c-text-2:#5A606E;
  --c-text-3:#8A8F9B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(27,33,64,.05),0 2px 8px rgba(27,33,64,.05);
  --sh-2:0 10px 28px rgba(27,33,64,.10);
  --bs-primary:#FF7A18;
  --bs-body-bg:#F7F5F1;
  --bs-body-color:#22252B;
  --bs-border-color:#E4E2DC;
  --bs-border-radius:.625rem;
  --bs-border-radius-lg:.875rem;
  --bs-link-color:#22252B;
  --bs-link-hover-color:#D95708;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-brand-700)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--c-text)}
p{margin:0 0 1.05em}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:18px;padding-right:18px}
@media (min-width:1400px){.container{max-width:1320px}}
.section{padding:64px 0}
@media (min-width:992px){.section{padding:80px 0}}
.section-head{margin-bottom:28px}
.section-head h2{font-size:28px;line-height:1.35;letter-spacing:.01em}
.section-head p{margin:12px 0 0;font-size:18px;line-height:1.9;color:var(--c-text-2);max-width:760px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.02em;color:var(--c-brand-700);background:var(--c-brand-50);border-radius:var(--r-badge);padding:4px 10px;margin-bottom:12px}

/* 按钮 */
.btn{border-radius:var(--r-btn);font-weight:600;font-size:15px;letter-spacing:.02em;padding:11px 20px;border:1.5px solid transparent;transition:all .18s ease;line-height:1.2}
.btn-brand,.btn-primary{background:var(--c-brand);color:#fff;border-color:var(--c-brand)}
.btn-brand:hover,.btn-primary:hover{background:var(--c-brand-700);border-color:var(--c-brand-700);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--c-ink);border-color:var(--c-ink)}
.btn-ghost:hover{background:var(--c-ink);color:#fff;border-color:var(--c-ink)}
.btn-outline-light-2{background:transparent;color:#fff;border-color:rgba(255,255,255,.62)}
.btn-outline-light-2:hover{background:#fff;color:var(--c-ink);border-color:#fff}
.btn-sm{padding:8px 14px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-brand-700);letter-spacing:.02em}
.link-arrow svg{transition:transform .18s ease}
.link-arrow:hover svg{transform:translateX(4px)}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease}
.site-header.is-stuck{box-shadow:var(--sh-1);background:rgba(255,255,255,.96)}
.topbar-inner{display:flex;align-items:center;gap:20px;height:56px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:30px;height:30px;border-radius:9px;background:var(--c-ink);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.brand-mark svg{width:18px;height:18px;stroke:var(--c-brand);fill:none;stroke-width:1.8}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--c-ink)}
.brand-text em{font-style:normal;font-size:12px;color:var(--c-text-3);letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1}
.nav-item{position:relative;padding:8px 12px;font-size:15px;font-weight:500;color:var(--c-text-2);border-radius:8px;letter-spacing:.02em}
.nav-item:hover{color:var(--c-brand-700);background:#FBF7F1}
.nav-item.active{color:var(--c-ink);font-weight:700}
.nav-item.active::after{content:"";position:absolute;left:12px;right:12px;bottom:-16px;height:3px;background:var(--c-brand);border-radius:2px}
.topbar-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{position:relative;display:flex;align-items:center}
.search-box svg{position:absolute;left:11px;width:16px;height:16px;stroke:var(--c-text-3);fill:none;stroke-width:1.6}
.search-box input{height:38px;width:200px;padding:0 12px 0 34px;border:1.5px solid var(--c-line);border-radius:var(--r-btn);background:var(--c-bg);font-size:14px;color:var(--c-text);transition:border-color .18s ease,background .18s ease}
.search-box input:focus{outline:none;border-color:var(--c-brand);background:#fff}
.search-box input::placeholder{color:var(--c-text-3)}
.nav-toggle{display:none;width:40px;height:38px;border:1.5px solid var(--c-line);background:#fff;border-radius:var(--r-btn);align-items:center;justify-content:center}
.nav-toggle svg{width:20px;height:20px;stroke:var(--c-ink);fill:none;stroke-width:1.7}
.hotbar{border-top:1px solid var(--c-line);background:var(--c-surface-alt)}
.hotbar-inner{display:flex;align-items:center;gap:10px;height:34px;overflow-x:auto;scrollbar-width:none}
.hotbar-inner::-webkit-scrollbar{display:none}
.hot-label{font-size:13px;font-weight:700;color:var(--c-brand-700);letter-spacing:.02em;flex-shrink:0}
.hot-pill{flex-shrink:0;font-size:13px;letter-spacing:.02em;color:var(--c-text-2);background:#fff;border:1px solid var(--c-line);border-radius:var(--r-pill);padding:2px 12px;line-height:1.6}
.hot-pill:hover{color:var(--c-brand-700);border-color:rgba(255,122,24,.5)}
.hot-pill.is-spark{background:var(--c-spark);border-color:var(--c-spark);color:#5B3C00;font-weight:600}
.hot-more{margin-left:auto;font-size:13px;color:var(--c-text-3);flex-shrink:0}
@media (max-width:991px){
  .main-nav,.search-box{display:none}
  .nav-toggle{display:inline-flex}
  .hotbar-inner{height:32px}
}
@media (max-width:767px){
  .topbar-inner{height:52px;gap:12px}
  .brand-text strong{font-size:16px}
  .topbar-actions .btn{display:none}
}

/* Offcanvas 移动导航 */
.offcanvas{border-radius:0;width:88%}
.offcanvas-header{border-bottom:1px solid var(--c-line);padding:16px 20px}
.offcanvas-body{padding:18px 20px}
.offcanvas .off-title{font-size:16px;font-weight:700;color:var(--c-ink)}
.mobile-search{display:flex;align-items:center;gap:8px;margin-bottom:18px}
.mobile-search input{flex:1;height:44px;border:1.5px solid var(--c-line);border-radius:var(--r-btn);padding:0 14px;font-size:15px;background:var(--c-bg)}
.mobile-nav-list li+li{border-top:1px solid var(--c-line)}
.mobile-nav-list a{display:flex;align-items:center;justify-content:space-between;padding:14px 2px;font-size:16px;font-weight:500;color:var(--c-text-2)}
.mobile-nav-list a.active{color:var(--c-brand-700);font-weight:700}
.mobile-nav-list a span{font-size:13px;color:var(--c-text-3)}

/* 面包屑 */
.crumb-wrap{padding:16px 0 0}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:6px;font-size:13px;color:var(--c-text-3)}
.crumb a{color:var(--c-text-3)}
.crumb a:hover{color:var(--c-brand-700)}
.crumb .sep{color:#C6C9D2}
.crumb .cur{color:var(--c-text-2)}

/* 频道头 */
.channel-band{
  position:relative;
  margin-top:18px;
  border-radius:var(--r-card);
  overflow:hidden;
  background-color:var(--c-ink);
  background-image:linear-gradient(100deg,rgba(27,33,64,.94) 0%,rgba(27,33,64,.88) 52%,rgba(44,52,98,.82) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  color:#fff;
}
.channel-band-inner{display:flex;gap:32px;align-items:flex-end;justify-content:space-between;padding:38px 32px}
.channel-band h1{color:#fff;font-size:32px;line-height:1.3;font-weight:800;letter-spacing:.01em;max-width:720px}
.channel-band .band-key{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.02em;color:#FFD9B8;background:rgba(255,122,24,.18);border:1px solid rgba(255,122,24,.42);border-radius:var(--r-badge);padding:4px 10px;margin-bottom:14px}
.channel-band p{margin:14px 0 0;font-size:16px;line-height:1.9;color:#C9CEE0;max-width:660px}
.band-stats{display:flex;gap:26px;flex-shrink:0;padding-bottom:4px}
.band-stats div{text-align:right}
.band-stats strong{display:block;font-size:26px;font-weight:800;color:var(--c-accent);font-variant-numeric:tabular-nums;line-height:1.2}
.band-stats span{font-size:12.5px;color:#9AA0B6;letter-spacing:.02em}
@media (min-width:768px) and (max-width:991px){
  .channel-band h1{font-size:27px}
  .channel-band-inner{padding:30px 24px}
}
@media (max-width:767px){
  .channel-band-inner{flex-direction:column;align-items:flex-start;padding:24px 20px;gap:22px}
  .channel-band h1{font-size:24px}
  .band-stats{gap:22px}
  .band-stats div{text-align:left}
}

/* 主体布局 */
.layout{display:grid;grid-template-columns:256px minmax(0,1fr);gap:32px;align-items:start}
@media (max-width:991px){.layout{grid-template-columns:1fr;gap:24px}}

/* 左侧筛选栏 */
.filter-rail{position:sticky;top:104px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1)}
.filter-rail h2{font-size:15px;font-weight:700;color:var(--c-ink);letter-spacing:.02em;margin-bottom:4px}
.filter-rail .rail-sub{font-size:12.5px;color:var(--c-text-3);margin-bottom:16px}
.filter-block{padding-bottom:16px;margin-bottom:16px;border-bottom:1px solid var(--c-line)}
.filter-block:last-of-type{border-bottom:none;margin-bottom:8px;padding-bottom:0}
.filter-block h3{font-size:13px;font-weight:700;color:var(--c-text-2);letter-spacing:.04em;margin-bottom:10px}
.filter-list li+li{margin-top:2px}
.filter-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:8px 10px;border-radius:var(--r-badge);font-size:14.5px;color:var(--c-text-2);letter-spacing:.02em}
.filter-list a:hover{background:#FBF7F1;color:var(--c-brand-700)}
.filter-list a.active{background:var(--c-brand-50);color:var(--c-brand-700);font-weight:700}
.filter-list a em{font-style:normal;font-size:12.5px;color:var(--c-text-3);font-variant-numeric:tabular-nums}
.filter-list a.active em{color:var(--c-brand-700)}
.rail-note{background:var(--c-surface-alt);border-radius:var(--r-card);padding:14px;font-size:13px;line-height:1.8;color:var(--c-text-2)}
.rail-note strong{display:block;color:var(--c-ink);font-size:13.5px;margin-bottom:4px}
@media (max-width:991px){
  .filter-rail{position:static;top:auto}
  .filter-block{display:inline-block;vertical-align:top;width:auto;border-bottom:none;margin:0 18px 0 0;padding:0}
  .filter-block h3{margin-bottom:8px}
  .filter-list{display:flex;flex-wrap:wrap;gap:6px}
  .filter-list li+li{margin-top:0}
  .filter-list a{background:var(--c-bg);padding:6px 12px;font-size:14px}
  .rail-note{margin-top:16px}
}

/* 列表区 */
.feed-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:12px}
.feed-head h2{font-size:20px;font-weight:700;color:var(--c-ink)}
.feed-head .count{font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums}
.sort-row{display:flex;gap:8px;flex-wrap:wrap}
.sort-row a{font-size:13.5px;color:var(--c-text-2);border:1px solid var(--c-line);background:#fff;border-radius:var(--r-pill);padding:4px 14px;letter-spacing:.02em}
.sort-row a:hover{border-color:rgba(255,122,24,.5);color:var(--c-brand-700)}
.sort-row a.active{background:var(--c-ink);border-color:var(--c-ink);color:#fff}
.feed-panel{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:6px 20px}
.feed-item{display:flex;gap:18px;padding:20px 2px;border-bottom:1px solid var(--c-line);transition:background .18s ease}
.feed-item:last-child{border-bottom:none}
.feed-item:hover{background:#FBF7F1}
.feed-item:hover .feed-title a{color:var(--c-brand-700)}
.feed-thumb{flex-shrink:0;width:164px;height:104px;border-radius:var(--r-img);overflow:hidden;background:var(--c-surface-alt)}
.feed-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease}
.feed-item:hover .feed-thumb img{transform:scale(1.03)}
.feed-body{min-width:0;flex:1;display:flex;flex-direction:column;justify-content:center}
.feed-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px}
.badge-cat{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-badge);background:var(--c-brand-50);color:var(--c-brand-700);font-size:13px;font-weight:500;letter-spacing:.02em;white-space:nowrap}
.badge-cat.accent{background:var(--c-accent-50);color:#0E8F83}
.meta-time{display:inline-flex;align-items:center;gap:5px;font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums}
.meta-time svg{width:13px;height:13px;stroke:currentColor;fill:none;stroke-width:1.6}
.feed-title{font-size:17px;line-height:1.5;font-weight:600;margin-bottom:6px}
.feed-title a{color:var(--c-text)}
.feed-sum{font-size:14.5px;line-height:1.75;color:var(--c-text-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.feed-foot{margin-top:8px}
@media (max-width:767px){
  .feed-panel{padding:4px 14px}
  .feed-item{gap:12px;padding:16px 0;flex-direction:row}
  .feed-thumb{width:112px;height:76px}
  .feed-title{font-size:16px}
  .feed-sum{-webkit-line-clamp:2;font-size:14px}
}

/* 分页 */
.pager{display:flex;justify-content:center;gap:8px;margin-top:28px;flex-wrap:wrap}
.pager a,.pager span{display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:40px;padding:0 12px;border:1px solid var(--c-line);border-radius:var(--r-badge);background:#fff;font-size:14px;color:var(--c-text-2);font-variant-numeric:tabular-nums}
.pager a:hover{border-color:rgba(255,122,24,.5);color:var(--c-brand-700)}
.pager .is-current{background:var(--c-brand);border-color:var(--c-brand);color:#fff;font-weight:700}
.pager .is-disabled{color:var(--c-text-3);background:var(--c-surface-alt)}
@media (max-width:520px){.pager .page-num{display:none}}

/* 提示带 */
.notice-strip{display:flex;align-items:center;gap:14px;flex-wrap:wrap;background:var(--c-surface-alt);border:1px solid var(--c-line);border-left:3px solid var(--c-brand);border-radius:var(--r-card);padding:16px 20px;margin-top:26px}
.notice-strip .ns-icon{width:34px;height:34px;border-radius:var(--r-badge);background:var(--c-brand-50);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.notice-strip .ns-icon svg{width:18px;height:18px;stroke:var(--c-brand-700);fill:none;stroke-width:1.6}
.notice-strip p{margin:0;font-size:14.5px;line-height:1.8;color:var(--c-text-2);flex:1;min-width:240px}
.notice-strip p strong{color:var(--c-ink)}

/* FAQ */
.faq-accordion{display:grid;grid-template-columns:1fr 1fr;gap:0 28px}
.faq-accordion .accordion-item{border:none;border-bottom:1px solid var(--c-line);background:transparent;border-radius:0}
.faq-accordion .accordion-button{background:transparent;box-shadow:none;padding:18px 34px 18px 0;font-size:16px;font-weight:700;line-height:1.6;color:var(--c-text);border-radius:0}
.faq-accordion .accordion-button:not(.collapsed){color:var(--c-brand-700);background:transparent}
.faq-accordion .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq-accordion .accordion-button::after{background-image:none;content:"";position:absolute;right:2px;top:24px;width:14px;height:14px;border-right:1.8px solid var(--c-text-3);border-bottom:1.8px solid var(--c-text-3);transform:rotate(45deg);transition:transform .2s ease;margin:0}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);border-color:var(--c-brand-700)}
.faq-accordion .accordion-collapse{background:var(--c-surface-alt);border-radius:var(--r-badge)}
.faq-accordion .accordion-body{padding:16px 18px;font-size:15px;line-height:1.85;color:var(--c-text-2)}
@media (max-width:991px){.faq-accordion{grid-template-columns:1fr}}

/* CTA 带 */
.cta-band{background:var(--c-ink);border-radius:var(--r-card);padding:38px 32px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;background-image:linear-gradient(90deg,rgba(27,33,64,.97),rgba(44,52,98,.9)),url('/assets/images/backpic/back-3.png');background-size:cover;background-position:center}
.cta-band h2{color:#fff;font-size:24px;line-height:1.4;font-weight:700}
.cta-band p{color:#C9CEE0;font-size:15px;margin:10px 0 0;max-width:620px}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-band .cta-tip{width:100%;font-size:12.5px;color:#8B93AC;margin:0}
@media (max-width:767px){.cta-band{padding:26px 20px}.cta-band h2{font-size:20px}}

/* 页脚 */
.site-footer{background:var(--c-ink);color:#C9CEE0;margin-top:72px;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.site-footer .brand-text strong{color:#fff}
.site-footer .brand-text em{color:#8B93AC}
.site-footer .brand-mark{background:var(--c-ink-700)}
.footer-desc{font-size:14px;line-height:1.85;color:#9AA0B6;margin:16px 0 10px;max-width:420px}
.footer-domain{font-size:12.5px;color:#7C8397;margin:0}
.site-footer h4{color:#fff;font-size:15px;font-weight:700;letter-spacing:.02em;margin:0 0 14px}
.footer-links li+li{margin-top:10px}
.footer-links a{font-size:14px;color:#C9CEE0}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.10)}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding:20px 0;font-size:13px;color:#8B93AC}
.footer-friend{display:flex;gap:16px;flex-wrap:wrap}
.footer-friend a{color:#8B93AC}
.footer-friend a:hover{color:#fff}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:767px){
  .site-footer{padding-top:40px;margin-top:52px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start}
}

/* 返回顶部 */
.back-top{position:fixed;right:22px;bottom:26px;width:48px;height:48px;border-radius:var(--r-img);background:var(--c-ink);border:none;display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-2);opacity:0;visibility:hidden;transform:translateY(8px);transition:all .22s ease;z-index:1040}
.back-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.back-top svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:1.8}
.back-top:hover{background:var(--c-brand)}
@media (max-width:520px){.back-top{right:14px;bottom:16px;width:44px;height:44px}}

/* roulang page: category2 */
:root{
  --c-brand:#FF7A18;
  --c-brand-700:#D95708;
  --c-brand-50:#FFF2E6;
  --c-ink:#1B2140;
  --c-ink-700:#2C3462;
  --c-accent:#12B3A4;
  --c-spark:#FFD34D;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EEF1F7;
  --c-line:#E4E2DC;
  --c-text:#22252B;
  --c-text-2:#5A606E;
  --c-text-3:#8A8F9B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(27,33,64,.05), 0 2px 8px rgba(27,33,64,.05);
  --sh-2:0 10px 28px rgba(27,33,64,.10);
  --bs-body-font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --bs-body-color:#22252B;
  --bs-body-bg:#F7F5F1;
  --bs-primary:#FF7A18;
  --bs-link-color:#22252B;
  --bs-link-hover-color:#D95708;
  --bs-border-color:#E4E2DC;
  --bs-border-radius:10px;
  --bs-border-radius-lg:14px;
  --bs-border-radius-sm:6px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-brand-700)}
h1,h2,h3,h4{color:var(--c-ink);font-weight:700;margin:0;line-height:1.35}
h1{font-weight:800}
p{margin:0 0 1.05em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit}
input{font:inherit}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1400px){.container{max-width:1320px}}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-brand);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;z-index:2000}
.skip-link:focus{left:0;color:#fff}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:var(--c-ink);transition:box-shadow .2s ease}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.header-main{display:flex;align-items:center;gap:20px;height:60px}
.site-header.is-stuck .header-main{height:56px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;background:var(--c-brand);color:#fff}
.brand-mark svg{width:18px;height:18px;stroke:currentColor}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:16px;font-weight:700;color:#fff;letter-spacing:.02em}
.brand-text em{font-size:11px;font-style:normal;color:#9AA0BC;letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-item{position:relative;display:inline-block;padding:8px 13px;font-size:15px;color:#C9CEE0;border-radius:8px}
.nav-item:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-item.active{color:#fff}
.nav-item.active::after{content:"";position:absolute;left:13px;right:13px;bottom:-1px;height:3px;border-radius:2px;background:var(--c-brand)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;border-radius:var(--r-pill);background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.16);transition:border-color .2s ease,background .2s ease}
.search-box:focus-within{border-color:var(--c-brand);background:rgba(255,255,255,.16)}
.search-box svg{width:16px;height:16px;stroke:#9AA0BC;flex-shrink:0}
.search-box input{width:150px;background:transparent;border:0;outline:none;color:#fff;font-size:14px}
.search-box input::placeholder{color:#9AA0BC}
.btn{--bs-btn-border-radius:10px;border-radius:var(--r-btn);font-weight:600;font-size:15px;line-height:1.4;padding:10px 20px;border-width:1px;box-shadow:none;transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease}
.btn:focus,.btn:focus-visible{box-shadow:0 0 0 2px rgba(255,122,24,.35)}
.btn-brand{background:var(--c-brand);border-color:var(--c-brand);color:#fff}
.btn-brand:hover,.btn-brand:focus{background:var(--c-brand-700);border-color:var(--c-brand-700);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:#fff;border:1.5px solid var(--c-ink);color:var(--c-ink)}
.btn-ghost:hover{background:var(--c-ink);border-color:var(--c-ink);color:#fff;transform:translateY(-1px)}
.btn-lightline{background:transparent;border:1.5px solid rgba(255,255,255,.55);color:#fff}
.btn-lightline:hover{background:#fff;border-color:#fff;color:var(--c-ink)}
.btn-sm{padding:8px 16px;font-size:14px}
.nav-toggle{display:none;width:40px;height:38px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.08);border-radius:var(--r-btn);align-items:center;justify-content:center;cursor:pointer}
.nav-toggle svg{width:20px;height:20px;stroke:#fff}
.hot-bar{background:#151A33;border-top:1px solid rgba(255,255,255,.06)}
.hot-inner{display:flex;align-items:center;gap:10px;height:40px;overflow:hidden}
.hot-label{font-size:13px;color:#8A90AC;flex-shrink:0}
.hot-pill{font-size:13px;line-height:1;padding:6px 12px;border-radius:var(--r-pill);background:rgba(255,122,24,.14);color:#FFC9A0;white-space:nowrap}
.hot-pill:hover{background:rgba(255,122,24,.3);color:#fff}
.hot-more{margin-left:auto;font-size:13px;color:#C9CEE0;white-space:nowrap}
.hot-more:hover{color:#fff;text-decoration:underline}

/* ============ Offcanvas 移动导航 ============ */
.mobile-nav{--bs-offcanvas-width:88%;background:var(--c-ink);color:#fff;border-left:0}
.mobile-nav .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.12);padding:18px 22px}
.mobile-nav .offcanvas-title{color:#fff;font-size:16px}
.mobile-nav .btn-close{filter:invert(1) grayscale(1);opacity:.75}
.mobile-nav .offcanvas-body{padding:20px 22px 28px;display:flex;flex-direction:column;gap:18px}
.mobile-links{display:flex;flex-direction:column}
.mobile-links a{padding:14px 4px;font-size:16px;color:#C9CEE0;border-bottom:1px solid rgba(255,255,255,.08)}
.mobile-links a:hover,.mobile-links a.active{color:#fff}
.mobile-links a.active{color:var(--c-brand)}
.search-box--mobile{width:100%;background:rgba(255,255,255,.08)}
.search-box--mobile input{width:100%}

/* ============ 页头横幅 ============ */
.page-hero{position:relative;overflow:hidden;background:var(--c-ink);color:#fff;padding:56px 0 64px}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  opacity:.34;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(27,33,64,.94) 0%,rgba(27,33,64,.80) 52%,rgba(27,33,64,.62) 100%);
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb-nav{font-size:13px;color:#9AA0BC;margin-bottom:20px;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.breadcrumb-nav a{color:#9AA0BC}
.breadcrumb-nav a:hover{color:#fff}
.breadcrumb-nav .sep{color:#5C6484}
.breadcrumb-nav .current{color:#C9CEE0}
.hero-badge{display:inline-block;font-size:14px;font-weight:500;letter-spacing:.02em;padding:5px 12px;border-radius:var(--r-badge);background:var(--c-brand-50);color:var(--c-brand-700);margin-bottom:18px}
.page-hero h1{font-size:clamp(30px,4vw,44px);line-height:1.25;color:#fff;max-width:820px;margin-bottom:18px}
.hero-lead{font-size:18px;line-height:1.9;color:#C9CEE0;max-width:680px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-stats{display:flex;flex-wrap:wrap;gap:26px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);max-width:760px}
.hero-stat{display:flex;flex-direction:column;gap:2px}
.hero-stat strong{font-size:22px;font-weight:700;color:var(--c-spark);font-variant-numeric:tabular-nums;line-height:1.3}
.hero-stat span{font-size:13px;color:#9AA0BC}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section--alt{background:var(--c-surface-alt)}
.section--tight{padding-top:64px}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{font-size:28px;line-height:1.35;margin-bottom:12px}
.section-head .lead{font-size:18px;line-height:1.9;color:var(--c-text-2)}
.eyebrow{display:inline-block;font-size:13px;font-weight:500;letter-spacing:.02em;padding:4px 10px;border-radius:var(--r-badge);background:var(--c-brand-50);color:var(--c-brand-700);margin-bottom:14px}
.eyebrow--accent{background:rgba(18,179,164,.12);color:#0B8074}

/* ============ 攻略卡片网格 ============ */
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.guide-card{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.guide-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(255,122,24,.35)}
.guide-thumb{position:relative;aspect-ratio:16/9;background:#E8E6E0;overflow:hidden}
.guide-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease}
.guide-card:hover .guide-thumb img{transform:scale(1.03)}
.guide-thumb .thumb-flag{position:absolute;left:12px;top:12px;font-size:12px;padding:4px 10px;border-radius:var(--r-pill);background:var(--c-spark);color:#5A4408;font-weight:600}
.guide-body{display:flex;flex-direction:column;gap:12px;padding:20px 22px 22px;flex:1}
.guide-body h3{font-size:18px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:anywhere}
.guide-body h3 a:hover{color:var(--c-brand-700)}
.guide-desc{font-size:15px;line-height:1.8;color:var(--c-text-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{font-size:13px;line-height:1.6;padding:3px 10px;border-radius:var(--r-pill);background:var(--c-surface-alt);color:var(--c-text-2)}
.tag--brand{background:var(--c-brand-50);color:var(--c-brand-700)}
.tag--accent{background:rgba(18,179,164,.12);color:#0B8074}
.guide-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line)}
.meta-time{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums}
.meta-time svg{width:14px;height:14px;stroke:var(--c-text-3)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-brand-700)}
.link-arrow svg{width:15px;height:15px;stroke:currentColor;transition:transform .2s ease}
.link-arrow:hover svg{transform:translateX(4px)}

/* ============ 特点卡 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feature-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px 22px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(255,122,24,.35)}
.feature-icon{width:44px;height:44px;border-radius:12px;background:var(--c-brand-50);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.feature-icon svg{width:24px;height:24px;stroke:var(--c-brand-700)}
.feature-card h3{font-size:18px;margin-bottom:10px}
.feature-card p{font-size:15px;line-height:1.8;color:var(--c-text-2);margin:0}

/* ============ 步骤流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step-item{position:relative;padding:24px 22px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card)}
.step-item::before{
  counter-increment:step;content:counter(step,decimal);
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:10px;
  background:var(--c-ink);color:#fff;font-size:15px;font-weight:700;
  margin-bottom:14px;font-variant-numeric:tabular-nums;
}
.step-item h3{font-size:17px;margin-bottom:8px}
.step-item p{font-size:15px;line-height:1.8;color:var(--c-text-2);margin:0}

/* ============ 要点面板 ============ */
.panel-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:start}
.panel-copy h2{font-size:28px;margin-bottom:16px}
.panel-copy p{font-size:16.5px;line-height:1.9;color:var(--c-text-2)}
.panel-list{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.panel-list li{display:flex;gap:10px;font-size:16px;line-height:1.8;color:var(--c-text)}
.panel-list li::before{content:"";flex-shrink:0;width:8px;height:8px;margin-top:11px;border-radius:2px;background:var(--c-brand)}
.stat-panel{background:var(--c-ink);border-radius:var(--r-card);padding:28px 26px;color:#fff;box-shadow:var(--sh-2)}
.stat-panel h3{color:#fff;font-size:18px;margin-bottom:6px}
.stat-panel .panel-note{font-size:13px;color:#9AA0BC;margin-bottom:16px}
.stat-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.12)}
.stat-row:last-of-type{border-bottom:0}
.stat-row span{font-size:15px;color:#C9CEE0}
.stat-row strong{font-size:16px;color:var(--c-spark);font-variant-numeric:tabular-nums;font-weight:700}
.stat-panel .panel-foot{margin-top:18px;padding-top:16px;border-top:1px solid rgba(255,255,255,.12);font-size:14px;line-height:1.8;color:#9AA0BC}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px}
.faq-acc .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--c-line);border-radius:0}
.faq-acc .accordion-item:first-of-type{border-top:1px solid var(--c-line)}
.faq-acc .accordion-button{
  position:relative;background:transparent;box-shadow:none;border-radius:0;
  padding:20px 52px 20px 20px;font-size:16px;font-weight:700;line-height:1.6;color:var(--c-ink);
}
.faq-acc .accordion-button:not(.collapsed){color:var(--c-brand-700);background:var(--c-surface-alt)}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq-acc .accordion-button::after{
  content:"";position:absolute;right:22px;top:50%;width:2px;height:14px;margin:0;
  background:var(--c-brand);background-image:none;border-radius:1px;
  transform:translateY(-50%);transition:transform .2s ease,opacity .2s ease;
}
.faq-acc .accordion-button::before{
  content:"";position:absolute;right:16px;top:50%;width:14px;height:2px;
  background:var(--c-brand);border-radius:1px;transform:translateY(-50%);
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(90deg);opacity:0}
.faq-acc .accordion-body{padding:4px 52px 22px 20px;background:var(--c-surface-alt);font-size:15px;line-height:1.85;color:var(--c-text-2)}

/* ============ 底部 CTA ============ */
.cta-band{background:var(--c-ink);color:#fff;padding:64px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-text{max-width:640px}
.cta-text h2{color:#fff;font-size:28px;margin-bottom:12px}
.cta-text p{font-size:16.5px;line-height:1.9;color:#C9CEE0;margin:0}
.cta-side{display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.cta-note{font-size:13px;color:#9AA0BC}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:#C9CEE0;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-desc{font-size:14.5px;line-height:1.85;color:#9AA0BC;margin-bottom:12px}
.footer-domain{font-size:13px;color:#7B82A0}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14.5px;color:#C9CEE0}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8A90AC}
.footer-friend{display:flex;flex-wrap:wrap;gap:16px}
.footer-friend a{color:#8A90AC}
.footer-friend a:hover{color:#fff;text-decoration:underline}

/* ============ 返回顶部 ============ */
.back-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;border:0;
  border-radius:12px;background:var(--c-ink);color:#fff;display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:.25s ease;cursor:pointer;z-index:1040;
}
.back-top.is-show{opacity:1;visibility:visible;transform:none}
.back-top:hover{background:var(--c-brand)}
.back-top svg{width:20px;height:20px;stroke:currentColor}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  .container{max-width:1200px}
}
@media (max-width:1199px){
  .main-nav{margin-left:0}
  .nav-item{padding:8px 10px;font-size:14.5px}
  .search-box input{width:120px}
  .guide-grid{gap:20px}
  .feature-grid,.steps{grid-template-columns:repeat(2,1fr)}
  .panel-wrap{gap:32px}
}
@media (max-width:991px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .search-box{display:none}
  .hot-pill:nth-child(n+6){display:none}
  .section{padding:64px 0}
  .section-head h2,.panel-copy h2,.cta-text h2{font-size:25px}
  .page-hero{padding:44px 0 52px}
  .guide-grid{grid-template-columns:repeat(2,1fr)}
  .panel-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .section{padding:48px 0}
  .header-main{height:56px;gap:12px}
  .brand-text em{display:none}
  .hot-inner{height:auto;padding:10px 0;gap:8px;overflow-x:auto;-ms-overflow-style:none;scrollbar-width:none}
  .hot-inner::-webkit-scrollbar{display:none}
  .hot-more{margin-left:0}
  .page-hero h1{font-size:26px}
  .hero-lead{font-size:16px}
  .hero-stats{gap:18px}
  .guide-grid{grid-template-columns:1fr;gap:18px}
  .feature-grid,.steps{grid-template-columns:1fr}
  .faq-acc .accordion-button{font-size:15.5px;padding:18px 48px 18px 16px}
  .faq-acc .accordion-body{padding:4px 48px 20px 16px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px}
  .cta-band{padding:48px 0}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px}
  .site-footer{padding-top:48px}
  .back-top{right:16px;bottom:16px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%;text-align:center}
  .search-box--mobile input{width:100%}
}

/* roulang page: category4 */
:root{
  --c-brand:#FF7A18;
  --c-brand-700:#D95708;
  --c-brand-50:#FFF2E6;
  --c-ink:#1B2140;
  --c-ink-700:#2C3462;
  --c-accent:#12B3A4;
  --c-spark:#FFD34D;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EEF1F7;
  --c-line:#E4E2DC;
  --c-text:#22252B;
  --c-text-2:#5A606E;
  --c-text-3:#8A8F9B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(27,33,64,.05), 0 2px 8px rgba(27,33,64,.05);
  --sh-2:0 10px 28px rgba(27,33,64,.10);
  --bs-body-font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --bs-body-color:var(--c-text);
  --bs-body-bg:var(--c-bg);
  --bs-primary:#FF7A18;
  --bs-link-color:var(--c-ink-700);
  --bs-link-hover-color:var(--c-brand-700);
  --bs-border-color:var(--c-line);
  --bs-border-radius:var(--r-card);
}
*,*::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(--bs-body-font-family);
  font-size:16.5px;
  line-height:1.9;
  letter-spacing:0;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-ink-700);text-decoration:none}
a:hover{color:var(--c-brand-700)}
h1,h2,h3,h4,h5{margin:0;color:var(--c-ink);font-weight:700}
p{margin:0 0 1.05em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
.container,.container-lg,.container-md,.container-sm,.container-xl{
  max-width:100%;
  padding-left:20px;
  padding-right:20px;
  margin-left:auto;
  margin-right:auto;
}
@media (min-width:768px){.container,.container-sm{max-width:720px}}
@media (min-width:992px){.container,.container-md,.container-lg{max-width:960px}}
@media (min-width:1200px){.container,.container-lg,.container-xl{max-width:1200px}}
@media (min-width:1400px){.container{max-width:1320px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-1);background:rgba(255,255,255,.97)}
.header-main{height:56px;display:flex;align-items:center;transition:height .2s ease}
.site-header.is-stuck .header-main{height:52px}
.header-inner{display:flex;align-items:center;gap:20px;width:100%;height:100%}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:28px;height:28px;border-radius:10px;background:var(--c-ink);
  display:grid;place-items:center;color:#fff;flex:0 0 auto;
}
.brand-mark svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:.02em}
.brand-text em{font-size:12px;font-style:normal;color:var(--c-text-3);letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-item{
  position:relative;
  padding:6px 12px;
  font-size:15px;
  font-weight:600;
  color:var(--c-ink-700);
  border-radius:var(--r-btn);
  transition:color .18s ease,background .18s ease;
  white-space:nowrap;
}
.nav-item:hover{color:var(--c-brand-700);background:var(--c-brand-50)}
.nav-item.active{color:var(--c-brand-700)}
.nav-item.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:3px;
  border-radius:2px;background:var(--c-brand);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search input{
  height:38px;width:200px;border-radius:var(--r-btn);
  border:1.5px solid var(--c-line);background:#fff;color:var(--c-text);
  font-size:14.5px;padding:0 38px 0 12px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search input::placeholder{color:var(--c-text-3)}
.nav-search input:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(255,122,24,.14)}
.nav-search button{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border:0;background:transparent;color:var(--c-text-3);
  display:grid;place-items:center;border-radius:6px;
}
.nav-search button:hover{color:var(--c-brand-700);background:var(--c-brand-50)}
.nav-search svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.6}
.icon-btn{
  width:38px;height:38px;border-radius:var(--r-btn);
  border:1.5px solid var(--c-line);background:#fff;color:var(--c-ink-700);
  display:grid;place-items:center;transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.icon-btn:hover{border-color:var(--c-brand);color:var(--c-brand-700);background:var(--c-brand-50)}
.icon-btn svg{width:19px;height:19px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.header-hot{display:none;border-top:1px solid var(--c-line);background:var(--c-surface-alt)}
@media (min-width:992px){.header-hot{display:block}}
.hot-inner{height:34px;display:flex;align-items:center;gap:12px}
.hot-label{font-size:13px;font-weight:700;color:var(--c-brand-700);flex:0 0 auto;letter-spacing:.02em}
.hot-list{display:flex;align-items:center;gap:8px;flex:1 1 auto;overflow-x:auto;scrollbar-width:none;padding:2px 0}
.hot-list::-webkit-scrollbar{display:none}
.hot-pill{
  font-size:13px;padding:3px 11px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--c-line);color:var(--c-text-2);
  white-space:nowrap;transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.hot-pill:hover{border-color:var(--c-brand);color:var(--c-brand-700);background:var(--c-brand-50)}
.hot-pill.is-hot{background:var(--c-spark);border-color:var(--c-spark);color:#544000;font-weight:600}
.hot-more{font-size:13px;color:var(--c-text-2);flex:0 0 auto}
.hot-more:hover{color:var(--c-brand-700)}

/* 搜索覆盖层 */
.search-overlay{
  position:fixed;left:0;right:0;top:0;z-index:1045;
  background:#fff;border-bottom:1px solid var(--c-line);box-shadow:var(--sh-2);
  padding:14px 0;
}
.search-overlay[hidden]{display:none}
.search-overlay-form{display:flex;align-items:center;gap:12px}
.search-overlay-form input{
  flex:1 1 auto;height:44px;border-radius:var(--r-btn);
  border:1.5px solid var(--c-line);padding:0 14px;font-size:15px;background:#fff;
}
.search-overlay-form input:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(255,122,24,.14)}
.search-close{
  width:44px;height:44px;border-radius:var(--r-btn);border:1.5px solid var(--c-line);
  background:#fff;color:var(--c-text-2);font-size:20px;line-height:1;
}
.search-close:hover{border-color:var(--c-brand);color:var(--c-brand-700)}

/* 移动端抽屉 */
.offcanvas{border-radius:0;background:#fff;width:88%}
.offcanvas-header{border-bottom:1px solid var(--c-line);padding:16px 20px}
.offcanvas-title{font-size:16px;font-weight:700}
.offcanvas-body{padding:18px 20px 24px}
.oc-search{position:relative;margin-bottom:18px}
.oc-search input{
  width:100%;height:44px;border-radius:var(--r-btn);border:1.5px solid var(--c-line);
  padding:0 14px;font-size:15px;background:#fff;
}
.oc-search input:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(255,122,24,.14)}
.oc-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:20px}
.oc-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 14px;border-radius:var(--r-btn);font-size:15.5px;font-weight:600;color:var(--c-ink-700);
}
.oc-nav a:hover{background:var(--c-brand-50);color:var(--c-brand-700)}
.oc-nav a.active{background:var(--c-brand-50);color:var(--c-brand-700);box-shadow:inset 3px 0 0 var(--c-brand)}
.oc-nav svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.6;opacity:.6}
.oc-hot{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}

/* ============ 按钮 ============ */
.btn{
  border-radius:var(--r-btn);
  font-size:15.5px;
  font-weight:600;
  padding:.66rem 1.3rem;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  box-shadow:none;
}
.btn-brand{background:var(--c-brand);border:1.5px solid var(--c-brand);color:#fff}
.btn-brand:hover,.btn-brand:focus{background:var(--c-brand-700);border-color:var(--c-brand-700);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:#fff;border:1.5px solid var(--c-ink);color:var(--c-ink)}
.btn-ghost:hover,.btn-ghost:focus{background:var(--c-ink);border-color:var(--c-ink);color:#fff;transform:translateY(-1px)}
.btn-ghost-light{background:transparent;border:1.5px solid rgba(255,255,255,.6);color:#fff}
.btn-ghost-light:hover{background:#fff;border-color:#fff;color:var(--c-ink)}
.btn:focus{box-shadow:none}
.btn:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
.btn-sm{padding:.5rem 1rem;font-size:14.5px}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-alt{background:var(--c-surface-alt)}
.section-white{background:var(--c-surface)}
.section-head{max-width:780px;margin-bottom:34px}
.section-head h2{font-size:28px;line-height:1.35;font-weight:700;margin-bottom:12px}
.section-head p{font-size:18px;line-height:1.9;color:var(--c-text-2);margin:0}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:500;letter-spacing:.02em;
  padding:5px 12px;border-radius:var(--r-badge);
  background:var(--c-brand-50);color:var(--c-brand-700);
}
.badge-accent{background:rgba(18,179,164,.12);color:#0C7F75}
.badge-soft{background:#fff;border:1px solid var(--c-line);color:var(--c-text-2)}
.meta-text{font-size:13px;line-height:1.6;color:var(--c-text-3)}

/* ============ 分类页头图 ============ */
.cat-hero{
  position:relative;
  background-color:var(--c-ink);
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;background:rgba(27,33,64,.72);
}
.cat-hero .hero-inner{position:relative;z-index:1;padding:44px 0 52px}
.breadcrumb-line{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;line-height:1.6;color:rgba(255,255,255,.66);margin-bottom:20px;
}
.breadcrumb-line a{color:rgba(255,255,255,.78)}
.breadcrumb-line a:hover{color:#fff;text-decoration:underline;text-decoration-color:var(--c-accent);text-underline-offset:3px}
.breadcrumb-line .sep{color:rgba(255,255,255,.38)}
.breadcrumb-line .current{color:rgba(255,255,255,.92)}
.cat-hero h1{
  color:#fff;
  font-size:clamp(30px,4vw,46px);
  line-height:1.25;
  font-weight:800;
  margin:16px 0 16px;
  max-width:900px;
}
.hero-lead{
  font-size:18px;line-height:1.9;color:rgba(255,255,255,.82);
  max-width:720px;margin:0 0 26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:44px;
  border-top:1px solid rgba(255,255,255,.16);
  padding-top:20px;max-width:820px;
}
.hero-stats .stat .num{
  font-size:26px;font-weight:700;color:#fff;line-height:1.3;
  font-variant-numeric:tabular-nums;
}
.hero-stats .stat .num .unit{font-size:14px;font-weight:600;color:rgba(255,255,255,.7);margin-left:4px}
.hero-stats .stat .cap{font-size:13px;line-height:1.6;color:rgba(255,255,255,.62)}

/* ============ 快速自查 ============ */
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.quick-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:22px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.quick-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(255,122,24,.35)}
.quick-icon{
  width:44px;height:44px;border-radius:var(--r-img);
  background:var(--c-brand-50);color:var(--c-brand-700);
  display:grid;place-items:center;
}
.quick-icon svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.quick-card h3{font-size:18px;line-height:1.5;font-weight:700}
.quick-card p{font-size:15px;line-height:1.8;color:var(--c-text-2);margin:0}
.quick-link{margin-top:auto;font-size:15px;font-weight:600;color:var(--c-brand-700);display:inline-flex;align-items:center;gap:6px}
.quick-link svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.8;transition:transform .18s ease}
.quick-card:hover .quick-link svg{transform:translateX(4px)}

/* ============ FAQ 分组区 ============ */
.faq-layout{display:grid;grid-template-columns:260px 1fr;gap:40px;align-items:start;margin-top:34px}
.side-nav{
  position:sticky;top:110px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:20px;
  box-shadow:var(--sh-1);
}
.side-title{font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--c-text-3);margin:0 0 12px}
.side-nav a{
  display:block;
  padding:9px 12px;
  margin-bottom:2px;
  font-size:15px;
  color:var(--c-ink-700);
  border-radius:var(--r-btn);
  border-left:3px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.side-nav a:hover{background:var(--c-brand-50);color:var(--c-brand-700)}
.side-nav a.active{background:var(--c-surface-alt);border-left-color:var(--c-brand);color:var(--c-ink);font-weight:600}
.side-note{margin-top:16px;padding-top:16px;border-top:1px solid var(--c-line)}
.side-note p{font-size:13.5px;line-height:1.75;color:var(--c-text-2);margin:0 0 10px}
.side-note a{display:inline-block;font-size:14px;font-weight:600;color:var(--c-brand-700);border:0;padding:0}

.faq-group{margin-bottom:40px;scroll-margin-top:130px}
.faq-group:last-child{margin-bottom:0}
.group-title{
  display:flex;align-items:center;gap:10px;
  font-size:20px;line-height:1.5;font-weight:700;
  margin:0 0 14px;padding-bottom:12px;
  border-bottom:2px solid var(--c-ink);
}
.group-index{
  font-size:13px;font-weight:700;color:#fff;background:var(--c-ink);
  padding:2px 8px;border-radius:var(--r-badge);letter-spacing:.04em;
  font-variant-numeric:tabular-nums;
}
.acc-heading{margin:0;font-size:inherit;font-weight:inherit}
.accordion{--bs-accordion-bg:transparent;--bs-accordion-border-color:transparent;--bs-accordion-border-radius:0;--bs-accordion-btn-focus-box-shadow:none;--bs-accordion-active-bg:transparent;--bs-accordion-active-color:var(--c-brand-700);--bs-accordion-body-padding-x:0;--bs-accordion-body-padding-y:0}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--c-line)}
.accordion-item:first-of-type,.accordion-item:last-of-type{border-radius:0}
.accordion-button{
  position:relative;
  display:block;
  width:100%;
  text-align:left;
  background:transparent;
  border:0;
  border-radius:0!important;
  box-shadow:none;
  color:var(--c-ink);
  font-size:16px;
  font-weight:700;
  line-height:1.6;
  padding:18px 52px 18px 0;
}
.accordion-button:not(.collapsed){color:var(--c-brand-700);background:transparent;box-shadow:none}
.accordion-button:hover{color:var(--c-brand-700)}
.accordion-button:focus{box-shadow:none;border-color:transparent}
.accordion-button:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
.accordion-button::after{display:none!important}
.pm{
  position:absolute;right:8px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:var(--r-badge);
  border:1.5px solid var(--c-line);background:#fff;
  transition:background .2s ease,border-color .2s ease;
}
.pm::before,.pm::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-ink-700);
  border-radius:1px;transition:transform .2s ease,opacity .2s ease;
}
.pm::before{width:12px;height:2px;transform:translate(-50%,-50%)}
.pm::after{width:2px;height:12px;transform:translate(-50%,-50%)}
.accordion-button:not(.collapsed) .pm{background:var(--c-brand-50);border-color:rgba(255,122,24,.4)}
.accordion-button:not(.collapsed) .pm::before{background:var(--c-brand-700)}
.accordion-button:not(.collapsed) .pm::after{background:var(--c-brand-700);transform:translate(-50%,-50%) scaleY(0);opacity:0}
.accordion-body{
  background:var(--c-surface-alt);
  border-radius:var(--r-btn);
  padding:18px 20px;
  margin:0 0 18px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-text-2);
}
.accordion-body p:last-child{margin-bottom:0}
.accordion-body strong{color:var(--c-ink);font-weight:700}

/* ============ 图文与流程 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);background:var(--c-surface-alt);
}
.split-body h2{font-size:28px;line-height:1.35;margin-bottom:12px}
.split-body > p{font-size:17px;line-height:1.9;color:var(--c-text-2)}
.check-list{display:flex;flex-direction:column;gap:10px;margin-top:18px}
.check-list li{position:relative;padding-left:26px;font-size:15.5px;line-height:1.8;color:var(--c-text-2)}
.check-list li::before{
  content:"";position:absolute;left:0;top:.6em;width:10px;height:10px;
  border-radius:3px;background:var(--c-accent);
}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:34px}
.step{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:22px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(255,122,24,.35)}
.step-num{
  width:34px;height:34px;border-radius:var(--r-btn);
  background:var(--c-ink);color:#fff;
  display:grid;place-items:center;font-size:15px;font-weight:700;
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.step h3{font-size:17px;line-height:1.5;margin-bottom:8px}
.step p{font-size:14.5px;line-height:1.8;color:var(--c-text-2);margin:0}

/* ============ 数据卡 ============ */
.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.metric-card{
  background:var(--c-surface-alt);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:24px;
}
.metric-card .val{
  font-size:30px;font-weight:800;color:var(--c-ink);line-height:1.3;
  font-variant-numeric:tabular-nums;display:flex;align-items:baseline;gap:6px;
  margin-bottom:6px;
}
.metric-card .val em{font-style:normal;font-size:15px;font-weight:600;color:var(--c-text-2)}
.metric-card .cap{font-size:14.5px;line-height:1.75;color:var(--c-text-2);margin:0}
.metric-bar{height:4px;border-radius:2px;background:var(--c-accent);width:44px;margin-bottom:14px}

/* ============ 表单 ============ */
.form-layout{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.form-intro h2{font-size:28px;line-height:1.35;margin-bottom:12px}
.form-intro > p{font-size:17px;line-height:1.9;color:var(--c-text-2)}
.form-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:var(--sh-1);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--c-ink-700);margin-bottom:8px}
.form-control,.form-select{
  height:44px;
  border-radius:var(--r-btn);
  border:1.5px solid var(--c-line);
  font-size:15px;
  color:var(--c-text);
  background:#fff;
  padding:0 12px;
  box-shadow:none;
}
.form-select{padding-right:34px}
textarea.form-control{height:auto;min-height:112px;padding:10px 12px;line-height:1.7;resize:vertical}
.form-control::placeholder{color:var(--c-text-3)}
.form-control:focus,.form-select:focus{
  outline:none;border-color:var(--c-brand);
  box-shadow:0 0 0 3px rgba(255,122,24,.14);
}
.form-control.is-error,.form-select.is-error{border-color:#C4351F;background:#FFF7F5}
.field-error{font-size:13px;line-height:1.6;color:#C4351F;margin:6px 0 0}
.form-hint{
  font-size:14px;line-height:1.7;color:#0C7F75;
  background:rgba(18,179,164,.10);
  border-radius:var(--r-btn);
  padding:10px 14px;margin:0 0 16px;
}
.form-hint[hidden]{display:none}
.form-note{font-size:13px;line-height:1.7;color:var(--c-text-3);margin:12px 0 0}

/* ============ 底部 CTA ============ */
.cta-band{
  background:var(--c-ink);
  border-radius:var(--r-card);
  padding:44px 40px;
  color:#fff;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:26px;line-height:1.4;margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.76);font-size:16.5px;line-height:1.85;margin:0;max-width:620px}
.cta-side{display:flex;flex-direction:column;gap:10px;align-items:flex-start}
.cta-side .btn{min-width:180px;text-align:center}
.cta-side .small{font-size:13px;line-height:1.6;color:rgba(255,255,255,.58)}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:#C9CEE0;padding:56px 0 24px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.site-footer h4{font-size:15px;font-weight:700;color:#fff;margin:0 0 14px;letter-spacing:.02em}
.site-footer .brand-text strong{color:#fff}
.site-footer .brand-text em{color:#8A90A8}
.site-footer .brand-mark{background:var(--c-brand)}
.footer-desc{font-size:14px;line-height:1.85;color:#A9B0C7;margin:14px 0 8px;max-width:340px}
.footer-domain{font-size:13px;line-height:1.6;color:#8A90A8;margin:0}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14.5px;color:#C9CEE0;line-height:1.7}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--c-accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:20px;font-size:13px;color:#8A90A8}
.footer-bottom-inner{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:center}
.footer-friend{display:flex;flex-wrap:wrap;gap:16px}
.footer-friend a{color:#C9CEE0;font-size:13px}
.footer-friend a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}

/* 返回顶部 */
.to-top{
  position:fixed;right:20px;bottom:24px;z-index:1040;
  width:48px;height:48px;border-radius:var(--r-img);
  background:var(--c-ink);color:#fff;border:0;
  display:grid;place-items:center;
  opacity:0;visibility:hidden;
  transition:opacity .2s ease,visibility .2s ease,background .2s ease;
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{background:var(--c-brand)}
.to-top svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-search input{width:160px}
  .header-inner{gap:14px}
}
@media (max-width:991.98px){
  .section{padding:64px 0}
  .main-nav{display:none}
  .quick-grid{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr;gap:28px}
  .side-nav{position:static;top:auto}
  .split{grid-template-columns:1fr;gap:26px}
  .split-media img{aspect-ratio:16/9}
  .steps{grid-template-columns:repeat(2,1fr)}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
  .form-layout{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px}
  .cat-hero .hero-inner{padding:36px 0 44px}
  .hero-stats{gap:32px}
  .cta-band{padding:34px 26px}
}
@media (max-width:767.98px){
  body{font-size:15.5px}
  .section{padding:48px 0}
  .section-head{margin-bottom:24px}
  .section-head h2,.split-body h2,.form-intro h2{font-size:23px}
  .section-head p,.hero-lead{font-size:16.5px}
  .cat-hero h1{font-size:26px;line-height:1.32}
  .hero-actions{gap:10px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-stats{gap:22px;padding-top:16px}
  .hero-stats .stat .num{font-size:22px}
  .quick-grid{grid-template-columns:1fr;gap:14px}
  .steps{grid-template-columns:1fr}
  .metric-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .form-card{padding:22px}
  .cta-inner h2{font-size:22px}
  .cta-side{width:100%}
  .cta-side .btn{width:100%}
  .group-title{font-size:18px}
  .accordion-button{font-size:15.5px;padding:16px 46px 16px 0}
  .accordion-body{padding:16px;font-size:14.5px}
  .to-top{right:14px;bottom:16px;width:44px;height:44px}
}

/* roulang page: category3 */
:root{
  --c-brand:#FF7A18;
  --c-brand-700:#D95708;
  --c-brand-50:#FFF2E6;
  --c-ink:#1B2140;
  --c-ink-700:#2C3462;
  --c-accent:#12B3A4;
  --c-spark:#FFD34D;
  --c-bg:#F7F5F1;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EEF1F7;
  --c-line:#E4E2DC;
  --c-text:#22252B;
  --c-text-2:#5A606E;
  --c-text-3:#8A8F9B;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-badge:6px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(27,33,64,.05),0 2px 8px rgba(27,33,64,.05);
  --sh-2:0 10px 28px rgba(27,33,64,.10);

  --bs-body-font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --bs-body-color:#22252B;
  --bs-body-bg:#F7F5F1;
  --bs-primary:#FF7A18;
  --bs-primary-rgb:255,122,24;
  --bs-link-color:#D95708;
  --bs-link-hover-color:#D95708;
  --bs-border-color:#E4E2DC;
  --bs-border-radius:10px;
  --bs-border-radius-sm:6px;
  --bs-border-radius-lg:14px;
  --bs-focus-ring-color:rgba(255,122,24,.35);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0}
a{color:inherit;text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-brand-700)}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700}
p{margin:0}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1400px){.container{max-width:1320px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.header-main-inner{
  display:flex;align-items:center;gap:24px;
  min-height:56px;padding-top:6px;padding-bottom:6px;
  transition:min-height .2s ease;
}
.site-header.is-stuck .header-main-inner{min-height:52px}

.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:28px;height:28px;display:grid;place-items:center;
  background:var(--c-ink);border-radius:10px;
}
.brand-mark svg{width:18px;height:18px;fill:none;stroke:var(--c-spark);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:.02em}
.brand-text em{font-size:12px;font-style:normal;color:var(--c-text-3);letter-spacing:.08em}

.main-nav{display:flex;align-items:center;gap:2px;flex:1 1 auto;flex-wrap:nowrap}
.nav-item{
  position:relative;
  padding:8px 12px;font-size:15px;font-weight:500;color:var(--c-text-2);
  border-radius:10px;white-space:nowrap;
  transition:color .18s ease,background-color .18s ease;
}
.nav-item:hover{color:var(--c-ink);background:var(--c-surface-alt)}
.nav-item.active{color:var(--c-brand-700);font-weight:700;background:transparent}
.nav-item.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;
  border-radius:999px;background:var(--c-brand);
}

.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;margin-left:auto}
.nav-search{position:relative;display:flex;align-items:center}
.nav-search input{
  width:200px;height:36px;
  border:1.5px solid var(--c-line);border-radius:10px;
  background:var(--c-surface);color:var(--c-text);
  padding:0 40px 0 12px;font-size:14px;font-family:inherit;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search input::placeholder{color:var(--c-text-3)}
.nav-search input:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(255,122,24,.14)}
.nav-search button{
  position:absolute;right:6px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;display:grid;place-items:center;
  border:0;background:transparent;cursor:pointer;color:var(--c-text-3);border-radius:6px;
}
.nav-search button:hover{color:var(--c-brand-700)}
.nav-search svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}

.nav-toggle{
  display:none;
  width:38px;height:38px;border:1.5px solid var(--c-line);border-radius:10px;
  background:var(--c-surface);cursor:pointer;color:var(--c-ink);
  place-items:center;
}
.nav-toggle svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round}

.header-hot{background:var(--c-surface-alt);border-top:1px solid var(--c-line)}
.header-hot-inner{
  display:flex;align-items:center;gap:10px;height:34px;overflow:hidden;
}
.hot-prefix{font-size:12px;color:var(--c-text-3);flex:0 0 auto;letter-spacing:.02em}
.hot-pill{
  font-size:13px;line-height:1.5;padding:2px 12px;border-radius:999px;
  background:var(--c-surface);border:1px solid var(--c-line);color:var(--c-text-2);
  white-space:nowrap;transition:all .18s ease;
}
.hot-pill:hover{border-color:var(--c-brand);color:var(--c-brand-700)}
.hot-pill.is-hot{background:var(--c-spark);border-color:var(--c-spark);color:#6B4A00;font-weight:600}
.hot-more{margin-left:auto;font-size:13px;color:var(--c-brand-700);white-space:nowrap;flex:0 0 auto}
.hot-more:hover{text-decoration:underline}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  border-radius:10px;font-size:15px;font-weight:600;line-height:1.5;
  padding:10px 20px;border:1.5px solid transparent;
  box-shadow:none;transition:all .18s ease;font-family:inherit;cursor:pointer;
}
.btn:focus,.btn:focus-visible{box-shadow:0 0 0 3px rgba(255,122,24,.25);outline:none}
.btn-brand{background:var(--c-brand);border-color:var(--c-brand);color:#fff}
.btn-brand:hover{background:var(--c-brand-700);border-color:var(--c-brand-700);color:#fff;transform:translateY(-1px)}
.btn-brand:active{transform:translateY(0)}
.btn-outline-light-2{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-outline-light-2:hover{background:#fff;border-color:#fff;color:var(--c-ink)}
.btn-outline-ink{background:var(--c-surface);border-color:var(--c-ink);color:var(--c-ink)}
.btn-outline-ink:hover{background:var(--c-ink);color:#fff}
.btn-block{width:100%}
.header-cta{padding:8px 16px;font-size:14px}

/* ============ 页面横幅 ============ */
.page-hero{position:relative;background:var(--c-ink);color:#fff;overflow:hidden}
.page-hero-bg{position:absolute;inset:0;z-index:0}
.page-hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.42}
.page-hero::after{content:"";position:absolute;inset:0;background:rgba(27,33,64,.62);z-index:1}
.page-hero-inner{position:relative;z-index:2;padding-top:44px;padding-bottom:52px;max-width:900px}
.crumb-nav{display:flex;align-items:center;gap:8px;font-size:13px;line-height:1.6;color:rgba(255,255,255,.72);margin-bottom:20px}
.crumb-nav a{color:rgba(255,255,255,.72)}
.crumb-nav a:hover{color:#fff}
.crumb-sep{color:rgba(255,255,255,.4)}
.crumb-current{color:rgba(255,255,255,.92)}

.badge-cat{
  display:inline-block;font-size:14px;font-weight:500;letter-spacing:.02em;
  padding:3px 12px;border-radius:6px;
  background:var(--c-brand-50);color:var(--c-brand-700);
}
.badge-cat.on-dark{background:rgba(255,255,255,.14);color:#FFD9BC}
.badge-data{
  display:inline-block;font-size:13px;font-weight:500;letter-spacing:.02em;
  padding:3px 10px;border-radius:6px;
  background:rgba(18,179,164,.12);color:#0C7F74;
}

.page-hero h1{
  color:#fff;font-size:clamp(28px,3.6vw,42px);line-height:1.25;
  font-weight:800;letter-spacing:.01em;margin:18px 0 16px;max-width:16em;
}
.hero-lead{font-size:18px;line-height:1.9;color:rgba(255,255,255,.82);max-width:34em}
.hero-facts{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-fact{
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);
  border-radius:10px;padding:10px 16px;line-height:1.6;min-width:158px;
}
.hero-fact b{display:block;font-size:15px;color:#fff;font-weight:700;margin-bottom:2px}
.hero-fact span{font-size:13px;color:#C9CEE0}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-alt{background:var(--c-surface-alt)}
.section-head{margin-bottom:32px;max-width:760px}
.section-head h2{font-size:28px;line-height:1.35;font-weight:700;letter-spacing:.01em}
.section-sub{font-size:18px;line-height:1.9;color:var(--c-text-2);margin-top:12px;max-width:36em}
.section-sub-sm{font-size:15px;line-height:1.85;color:var(--c-text-2);margin-top:10px}

/* ============ 精选活动 ============ */
.feature-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:24px;align-items:stretch}
.feature-main{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.feature-main:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(255,122,24,.35)}
.feature-main .thumb{overflow:hidden;border-radius:0;background:var(--c-surface-alt)}
.feature-main .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .2s ease}
.feature-main:hover .thumb img{transform:scale(1.03)}
.feature-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.feature-body h3{font-size:22px;line-height:1.5;font-weight:700}
.feature-body p{font-size:15.5px;line-height:1.85;color:var(--c-text-2)}
.feature-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--c-text-3);margin-top:auto}

.feature-side{display:flex;flex-direction:column;gap:24px}
.feature-mini{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;gap:0;flex:1;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.feature-mini:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(255,122,24,.35)}
.feature-mini .thumb{flex:0 0 132px;overflow:hidden;background:var(--c-surface-alt)}
.feature-mini .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease}
.feature-mini:hover .thumb img{transform:scale(1.03)}
.feature-mini .mini-body{padding:16px 18px;display:flex;flex-direction:column;gap:8px}
.feature-mini h3{font-size:16.5px;line-height:1.5;font-weight:700}
.feature-mini p{font-size:14px;line-height:1.8;color:var(--c-text-2)}
.feature-mini .feature-meta{margin-top:auto;font-size:12.5px}

.link-arrow{
  font-size:14px;font-weight:600;color:var(--c-brand-700);
  display:inline-flex;align-items:center;gap:6px;
}
.link-arrow span{display:inline-block;transition:transform .18s ease}
.link-arrow:hover span{transform:translateX(4px)}

/* ============ 时间线 ============ */
.timeline{position:relative;list-style:none;margin-top:8px}
.timeline::before{
  content:"";position:absolute;left:113px;top:14px;bottom:14px;width:1px;background:var(--c-line);
}
.tl-item{display:grid;grid-template-columns:104px 1fr;gap:20px;padding-bottom:20px;position:relative}
.tl-item:last-child{padding-bottom:0}
.tl-time{
  text-align:right;padding-top:18px;font-variant-numeric:tabular-nums;
}
.tl-date{display:block;font-size:15px;font-weight:700;color:var(--c-ink);line-height:1.5}
.tl-week{display:block;font-size:12.5px;color:var(--c-text-3);line-height:1.6;margin-top:2px}
.tl-card{
  position:relative;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px 24px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-card::before{
  content:"";position:absolute;left:-25px;top:26px;
  width:9px;height:9px;border-radius:999px;background:var(--c-surface);
  border:2px solid var(--c-brand);
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(255,122,24,.35)}
.tl-head{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.tl-head h3{font-size:18px;line-height:1.5;font-weight:700}
.tl-card p{font-size:15.5px;line-height:1.85;color:var(--c-text-2)}
.tl-points{list-style:none;display:flex;flex-wrap:wrap;gap:8px 20px;margin:12px 0 14px}
.tl-points li{position:relative;padding-left:14px;font-size:14px;line-height:1.8;color:var(--c-text-2)}
.tl-points li::before{content:"";position:absolute;left:0;top:12px;width:5px;height:5px;border-radius:6px;background:var(--c-brand)}
.tl-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:1px solid var(--c-line);padding-top:12px}
.tl-foot .tl-note{font-size:13px;color:var(--c-text-3)}

.badge-live,.badge-soon,.badge-end{
  display:inline-block;font-size:12.5px;font-weight:600;line-height:1.6;
  padding:2px 10px;border-radius:6px;letter-spacing:.02em;
}
.badge-live{background:rgba(18,179,164,.12);color:#0C7F74}
.badge-soon{background:var(--c-brand-50);color:var(--c-brand-700)}
.badge-end{background:var(--c-surface-alt);color:var(--c-text-3)}

/* ============ 参与流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.step{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(255,122,24,.35)}
.step-num{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:var(--c-brand-50);color:var(--c-brand-700);
  font-size:15px;font-weight:700;margin-bottom:14px;
}
.step h3{font-size:17px;line-height:1.5;font-weight:700;margin-bottom:8px}
.step p{font-size:14.5px;line-height:1.85;color:var(--c-text-2)}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:1fr;gap:0}
.faq-accordion .accordion-item{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;
}
.faq-accordion .accordion-item:last-child{margin-bottom:0}
.faq-accordion .accordion-button{
  background:var(--c-surface);color:var(--c-ink);
  font-size:16px;font-weight:700;line-height:1.6;
  padding:16px 20px;border:0;box-shadow:none;
  display:flex;align-items:center;gap:12px;
}
.faq-accordion .accordion-button:not(.collapsed){
  background:var(--c-surface-alt);color:var(--c-brand-700);
}
.faq-accordion .accordion-button::after{
  content:"";width:10px;height:10px;flex:0 0 auto;margin-left:auto;
  border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  background-image:none;border-radius:0;
  transform:rotate(45deg);transition:transform .2s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(-135deg)}
.faq-accordion .accordion-button:focus{box-shadow:0 0 0 3px rgba(255,122,24,.18);border-color:var(--c-brand)}
.faq-accordion .accordion-body{
  font-size:15px;line-height:1.85;color:var(--c-text-2);
  padding:4px 20px 20px;border-top:1px solid var(--c-line);
}
.faq-accordion .accordion-body p{margin-top:12px}
.faq-accordion .accordion-body p:first-child{margin-top:0}

/* ============ 底部 CTA ============ */
.cta-band{
  background:var(--c-ink-700);color:#fff;
  padding:56px 0;border-bottom:1px solid rgba(255,255,255,.10);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{color:#fff;font-size:26px;line-height:1.4;font-weight:700}
.cta-band p{color:#C9CEE0;font-size:15.5px;line-height:1.85;margin-top:10px;max-width:32em}
.cta-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.cta-tip{font-size:13px;color:#8A8F9B;margin-top:14px}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-ink);color:#C9CEE0;padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:#8A8F9B}
.footer-brand .brand-mark{background:rgba(255,255,255,.10)}
.footer-desc{font-size:14px;line-height:1.85;color:#B9BFD2;margin:16px 0 10px;max-width:340px}
.footer-domain{font-size:13px;color:#8A8F9B}
.site-footer h4{font-size:15px;font-weight:700;color:#fff;margin:0 0 16px;line-height:1.5}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;line-height:1.7;color:#C9CEE0}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0}
.footer-bottom-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8A8F9B;
}
.footer-friend a{color:#8A8F9B;margin-left:16px}
.footer-friend a:hover{color:#fff;text-decoration:underline}

/* ============ 返回顶部 ============ */
.back-top{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;
  display:grid;place-items:center;border:0;cursor:pointer;
  background:var(--c-ink);color:#fff;border-radius:12px;
  box-shadow:var(--sh-2);opacity:0;visibility:hidden;
  transition:opacity .2s ease,visibility .2s ease,background .18s ease,transform .18s ease;
  z-index:1040;
}
.back-top.show{opacity:1;visibility:visible}
.back-top:hover{background:var(--c-brand);transform:translateY(-2px)}
.back-top svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ============ 抽屉导航 ============ */
.mobile-drawer{width:88%!important;max-width:420px;background:var(--c-surface)}
.mobile-drawer .offcanvas-header{border-bottom:1px solid var(--c-line);padding:16px 20px}
.mobile-drawer .offcanvas-title{font-size:17px;font-weight:700;color:var(--c-ink)}
.mobile-drawer .offcanvas-body{padding:20px}
.drawer-search{display:flex;gap:8px;margin-bottom:20px}
.drawer-search input{
  flex:1;height:44px;border:1.5px solid var(--c-line);border-radius:10px;
  padding:0 12px;font-size:15px;font-family:inherit;color:var(--c-text);
}
.drawer-search input:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 3px rgba(255,122,24,.14)}
.drawer-search .btn{padding:0 16px;height:44px}
.drawer-nav{display:flex;flex-direction:column;margin-bottom:22px}
.drawer-item{
  padding:13px 4px;font-size:16px;font-weight:500;color:var(--c-text-2);
  border-bottom:1px solid var(--c-line);
}
.drawer-item:hover{color:var(--c-brand-700)}
.drawer-item.active{color:var(--c-brand-700);font-weight:700}
.drawer-cta{width:100%}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  .container{padding:0 20px}
}
@media (max-width:1199px){
  .nav-search input{width:160px}
  .nav-item{padding:8px 10px;font-size:14.5px}
  .header-main-inner{gap:16px}
}
@media (max-width:991px){
  .main-nav{display:none}
  .nav-toggle{display:grid}
  .nav-search{display:none}
  .header-cta{display:none}
  .feature-grid{grid-template-columns:1fr}
  .feature-side{flex-direction:row}
  .feature-side .feature-mini{flex-direction:column}
  .feature-side .feature-mini .thumb{flex:0 0 auto}
  .feature-side .feature-mini .thumb img{aspect-ratio:16/9;height:auto}
  .steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:64px 0}
  .page-hero-inner{padding-top:36px;padding-bottom:44px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .header-main-inner{min-height:52px}
  .brand-text em{font-size:11px}
  .header-hot-inner{overflow-x:auto;scrollbar-width:none}
  .header-hot-inner::-webkit-scrollbar{display:none}
  .hot-more{display:none}
  .section{padding:48px 0}
  .section-head h2{font-size:23px}
  .section-sub{font-size:16px}
  .page-hero h1{font-size:26px}
  .hero-lead{font-size:16px}
  .hero-facts{gap:10px}
  .hero-fact{min-width:calc(50% - 5px);padding:9px 13px}
  .feature-side{flex-direction:column}
  .feature-side .feature-mini{flex-direction:row}
  .feature-side .feature-mini .thumb{flex:0 0 116px}
  .feature-mini .thumb img{height:100%;aspect-ratio:auto}
  .timeline::before{display:none}
  .tl-item{grid-template-columns:1fr;gap:8px;padding-bottom:18px}
  .tl-time{text-align:left;padding-top:0;display:flex;align-items:baseline;gap:8px}
  .tl-date{font-size:14px}
  .tl-week{margin-top:0}
  .tl-card::before{display:none}
  .tl-card{padding:18px 18px}
  .steps{grid-template-columns:1fr}
  .cta-band h2{font-size:22px}
  .cta-inner{gap:20px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:30px}
  .footer-bottom-inner{flex-direction:column;align-items:flex-start;gap:10px}
  .footer-friend a{margin-left:0;margin-right:16px}
  .back-top{right:16px;bottom:16px;width:44px;height:44px}
}