/* roulang page: index */
:root{
  --ink:#17332C;
  --ink-deep:#0F241F;
  --clay:#C4552F;
  --clay-deep:#A3441F;
  --paper:#F7F4ED;
  --paper-2:#EFEAE0;
  --card:#FFFFFF;
  --line:#E2DCD0;
  --line-strong:#CFC7B7;
  --text:#23282A;
  --muted:#6B7168;
  --invert:#F4F1E9;
  --ok:#3F6B4A;
  --warn:#B07C2A;
  --r-sm:4px;
  --r-md:6px;
  --r-lg:8px;
  --sh-1:0 2px 10px rgba(23,51,44,.06);
  --sh-2:0 8px 24px rgba(23,51,44,.08);
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --serif:"Songti SC","Noto Serif SC",Georgia,serif;
  --bs-primary:#17332C;
  --bs-body-bg:#F7F4ED;
  --bs-body-color:#23282A;
  --bs-border-color:#E2DCD0;
  --bs-border-radius:6px;
  --bs-border-radius-sm:4px;
  --bs-link-color:#17332C;
  --bs-link-hover-color:#C4552F;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:140px;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out;}
a:hover{color:var(--clay);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:.01em;}
h1{font-family:var(--serif);font-size:clamp(30px,3.6vw,44px);line-height:1.3;font-weight:700;}
h2{font-family:var(--serif);font-size:clamp(24px,2.4vw,32px);line-height:1.35;font-weight:700;}
h3{font-size:20px;line-height:1.5;font-weight:600;}
h4{font-size:17px;line-height:1.6;font-weight:600;}
p{margin:0 0 18px;}
ul,ol{margin:0;padding:0;list-style:none;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;}
@media (min-width:1200px){.container{max-width:1200px;}}
.section{padding:72px 0;}
.section-alt{background:var(--paper-2);}
.section-head{margin-bottom:36px;}
.section-title{position:relative;padding-left:16px;margin-bottom:12px;}
.section-title::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:2px;background:var(--ink);}
.section-sub{color:var(--muted);font-size:15px;line-height:1.8;margin:0;}
.meta{font-size:13px;line-height:1.6;color:var(--muted);font-variant-numeric:tabular-nums;}
.num{font-family:"Inter",system-ui,sans-serif;font-variant-numeric:tabular-nums;}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-sm);font-weight:600;font-size:16px;line-height:1;padding:14px 28px;border:1px solid transparent;transition:all .18s ease-out;min-height:46px;}
.btn-primary{background:var(--clay);color:#fff;border-color:var(--clay);}
.btn-primary:hover,.btn-primary:focus{background:var(--clay-deep);border-color:var(--clay-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-strong);}
.btn-ghost:hover,.btn-ghost:focus{color:var(--ink);border-color:var(--ink);background:var(--paper-2);}
.btn-ink{background:var(--ink);color:var(--invert);border-color:var(--ink);}
.btn-ink:hover,.btn-ink:focus{background:var(--ink-deep);border-color:var(--ink-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-sm{padding:10px 18px;font-size:14px;min-height:40px;}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--ink);outline-offset:2px;}
.link-more{font-size:15px;font-weight:600;color:var(--ink);border-bottom:1px solid transparent;padding-bottom:2px;}
.link-more:hover{color:var(--clay);border-bottom-color:var(--clay);}

/* 徽标 */
.badge-soft{display:inline-flex;align-items:center;height:22px;padding:0 8px;border-radius:var(--r-sm);background:var(--paper-2);color:var(--text);font-size:12px;font-weight:600;line-height:1;}
.badge-cat{display:inline-flex;align-items:center;height:22px;padding:0 8px;border-radius:var(--r-sm);background:rgba(23,51,44,.12);color:var(--ink);font-size:12px;font-weight:600;line-height:1;}
.badge-rec{display:inline-flex;align-items:center;height:22px;padding:0 8px;border-radius:var(--r-sm);background:var(--clay);color:#fff;font-size:12px;font-weight:600;line-height:1;}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:var(--paper);border-bottom:1px solid var(--line);transition:box-shadow .2s ease-out,background-color .2s ease-out;}
.site-header.is-condensed{box-shadow:var(--sh-1);}
.nav-top{border-bottom:1px solid var(--line);}
.nav-top-inner{display:flex;align-items:center;gap:24px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:30px;height:30px;border-radius:var(--r-sm);background:var(--ink);color:var(--invert);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:16px;font-weight:700;}
.brand-text{font-size:18px;font-weight:700;color:var(--ink);white-space:nowrap;letter-spacing:.02em;}
.brand-accent{color:var(--clay);}
.nav-channels{display:flex;align-items:center;gap:26px;flex:1 1 auto;min-width:0;}
.nav-link{position:relative;font-size:16px;font-weight:500;color:var(--text);padding:6px 0;white-space:nowrap;}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--ink);transform:scaleX(0);transform-origin:left;transition:transform .18s ease-out;}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-tools{display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.nav-search{position:relative;display:flex;align-items:center;}
.nav-search i{position:absolute;left:12px;font-size:13px;color:var(--muted);pointer-events:none;}
.nav-search input{width:220px;height:36px;border-radius:var(--r-sm);border:1px solid var(--line-strong);background:#fff;padding:0 12px 0 32px;font-size:14px;line-height:1;transition:border-color .18s ease-out,box-shadow .18s ease-out;}
.nav-search input::placeholder{color:var(--muted);}
.nav-search input:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(23,51,44,.12);}
.nav-entry{font-size:15px;font-weight:600;color:var(--ink);white-space:nowrap;}
.nav-entry:hover{color:var(--clay);}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line-strong);border-radius:var(--r-sm);background:#fff;color:var(--ink);align-items:center;justify-content:center;}
.nav-hot{background:var(--paper-2);}
.nav-hot-inner{display:flex;align-items:center;gap:18px;height:40px;overflow-x:auto;scrollbar-width:none;}
.nav-hot-inner::-webkit-scrollbar{display:none;}
.hot-label{font-size:13px;font-weight:600;color:var(--muted);white-space:nowrap;flex:0 0 auto;}
.hot-item{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text);white-space:nowrap;}
.hot-item::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--clay);}
.hot-item:hover{color:var(--ink);}
.site-header.is-condensed .nav-hot{display:none;}
.site-header.is-condensed .nav-top-inner{height:58px;}

/* 移动抽屉 */
.offcanvas{background:var(--paper);}
.offcanvas-header{border-bottom:1px solid var(--line);}
.offcanvas .m-nav a{display:flex;align-items:center;justify-content:space-between;padding:15px 2px;border-bottom:1px solid var(--line);font-size:16px;font-weight:500;color:var(--text);min-height:52px;}
.offcanvas .m-nav a:hover{color:var(--clay);}
.offcanvas .m-search{margin-top:20px;}
.offcanvas .m-search input{width:100%;height:44px;border:1px solid var(--line-strong);border-radius:var(--r-sm);background:#fff;padding:0 14px;}

/* ============ Hero ============ */
.hero{padding:48px 0 0;background:linear-gradient(180deg,var(--paper) 0%,var(--paper) 62%,var(--paper-2) 62%,var(--paper-2) 100%);}
.hero-inner{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;min-height:460px;padding-bottom:48px;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--ink);background:rgba(23,51,44,.08);border-radius:var(--r-sm);padding:5px 10px;margin-bottom:18px;}
.hero h1{margin-bottom:16px;}
.hero-sub{font-size:18px;line-height:1.7;color:var(--text);margin-bottom:20px;max-width:560px;}
.hero-points{display:flex;flex-direction:column;gap:10px;margin-bottom:28px;}
.hero-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--muted);line-height:1.7;}
.hero-points li::before{content:"";flex:0 0 auto;width:7px;height:7px;margin-top:9px;background:var(--ink);border-radius:1px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);background:var(--card);}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-visual-tag{position:absolute;right:12px;bottom:12px;background:rgba(23,51,44,.82);color:var(--invert);font-size:12px;line-height:1;padding:8px 10px;border-radius:var(--r-sm);backdrop-filter:blur(2px);}

/* 锚点条 */
.anchor-bar{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.anchor-bar-inner{display:flex;align-items:center;gap:8px;height:52px;overflow-x:auto;scrollbar-width:none;}
.anchor-bar-inner::-webkit-scrollbar{display:none;}
.anchor-item{font-size:14px;font-weight:500;color:var(--text);padding:7px 14px;border-radius:var(--r-sm);white-space:nowrap;border:1px solid transparent;}
.anchor-item:hover{color:var(--ink);background:#fff;border-color:var(--line);}

/* ============ 卖点区 ============ */
.points-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.points-aside{position:sticky;top:132px;}
.points-aside p{color:var(--muted);font-size:15px;line-height:1.85;margin-top:14px;max-width:300px;}
.point-list{border-top:1px dashed var(--line-strong);}
.point-item{display:grid;grid-template-columns:56px 1fr;gap:20px;padding:26px 0;border-bottom:1px dashed var(--line-strong);}
.point-index{font-family:"Inter",system-ui,sans-serif;font-size:15px;font-weight:700;color:var(--ink);border:1px solid var(--line-strong);border-radius:50%;width:46px;height:46px;display:flex;align-items:center;justify-content:center;background:#fff;}
.point-body h3{margin-bottom:8px;}
.point-body p{margin:0;color:var(--muted);font-size:15px;line-height:1.85;}

/* ============ 演示区 ============ */
.demo-row{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;}
.demo-row + .demo-row{margin-top:56px;}
.demo-media{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);background:#fff;}
.demo-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.demo-body h3{margin-bottom:12px;}
.demo-body p{color:var(--muted);font-size:15px;line-height:1.85;margin-bottom:16px;}
.demo-list{margin:0 0 18px;}
.demo-list li{padding-left:18px;position:relative;color:var(--text);font-size:15px;line-height:1.9;}
.demo-list li::before{content:"";position:absolute;left:0;top:12px;width:8px;height:1px;background:var(--clay);}
.demo-row.reverse .demo-media{order:2;}

/* ============ 证据区 ============ */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;margin-bottom:48px;}
.stat-cell{background:#fff;padding:26px 22px;}
.stat-num{font-family:"Inter",system-ui,sans-serif;font-variant-numeric:tabular-nums;font-size:38px;line-height:1.1;font-weight:700;color:var(--ink);}
.stat-num span{font-size:16px;font-weight:600;color:var(--muted);margin-left:4px;}
.stat-label{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.7;}
.timeline{position:relative;padding-left:24px;max-width:860px;}
.timeline::before{content:"";position:absolute;left:5px;top:8px;bottom:8px;width:1px;background:var(--line-strong);}
.tl-item{position:relative;padding:0 0 30px 20px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{content:"";position:absolute;left:-24px;top:9px;width:11px;height:11px;border-radius:50%;background:var(--paper);border:2px solid var(--ink);}
.tl-time{font-size:13px;font-weight:600;color:var(--clay);letter-spacing:.02em;margin-bottom:6px;font-variant-numeric:tabular-nums;}
.tl-item h3{font-size:18px;margin-bottom:6px;}
.tl-item p{margin:0;color:var(--muted);font-size:15px;line-height:1.8;}

/* ============ 价格区 ============ */
.price-list{display:flex;flex-direction:column;gap:16px;}
.price-row{display:grid;grid-template-columns:3fr 5fr 3fr;gap:24px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px 26px;position:relative;transition:border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;}
.price-row:hover{border-color:rgba(23,51,44,.35);box-shadow:var(--sh-2);transform:translateY(-2px);}
.price-row.featured{border:2px solid var(--ink);}
.price-name{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--ink);margin-bottom:6px;}
.price-desc{font-size:14px;color:var(--muted);line-height:1.7;margin:0;}
.price-feats{display:flex;flex-direction:column;gap:8px;}
.price-feats li{display:flex;align-items:flex-start;gap:8px;font-size:15px;line-height:1.7;color:var(--text);}
.price-feats li i{color:var(--ok);font-size:12px;margin-top:7px;}
.price-side{text-align:right;}
.price-amount{font-family:"Inter",system-ui,sans-serif;font-variant-numeric:tabular-nums;font-size:32px;font-weight:700;color:var(--ink);line-height:1.1;}
.price-amount small{font-size:14px;font-weight:500;color:var(--muted);margin-left:2px;}
.price-side .btn{margin-top:12px;}

/* ============ 资讯区 ============ */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:20px;transition:border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;}
.news-card:hover{border-color:rgba(23,51,44,.32);box-shadow:var(--sh-2);transform:translateY(-2px);}
.news-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.news-thumb{width:52px;height:52px;flex:0 0 52px;border-radius:var(--r-sm);background:var(--paper-2);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-size:20px;font-weight:700;color:var(--ink);}
.news-card h3{font-size:19px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card h3 a{color:var(--ink);}
.news-card h3 a:hover{color:var(--clay);}
.news-excerpt{color:var(--muted);font-size:15px;line-height:1.8;margin:0 0 18px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding-top:14px;margin-top:auto;}
.news-foot .read{font-size:14px;font-weight:600;color:var(--clay);}
.news-foot .read:hover{color:var(--clay-deep);text-decoration:underline;text-underline-offset:4px;}
.empty-state{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-md);min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:36px 20px;text-align:center;}
.empty-state i{font-size:30px;color:var(--muted);}
.empty-state p{margin:0;color:var(--muted);font-size:15px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.accordion-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md)!important;margin-bottom:12px;overflow:hidden;}
.accordion-button{background:#fff;color:var(--ink);font-size:17px;font-weight:500;line-height:1.6;padding:20px 22px;box-shadow:none!important;display:flex;align-items:center;justify-content:space-between;gap:16px;}
.accordion-button:not(.collapsed){background:var(--paper-2);color:var(--ink);}
.accordion-button:focus{box-shadow:none;border-color:var(--line);}
.accordion-button::after{display:none;}
.acc-icon{position:relative;flex:0 0 18px;width:18px;height:18px;}
.acc-icon::before,.acc-icon::after{content:"";position:absolute;background:var(--ink);border-radius:1px;transition:transform .2s ease-out,opacity .2s ease-out;}
.acc-icon::before{left:0;right:0;top:8px;height:2px;}
.acc-icon::after{top:0;bottom:0;left:8px;width:2px;}
.accordion-button:not(.collapsed) .acc-icon::after{transform:scaleY(0);opacity:0;}
.accordion-body{padding:4px 22px 22px;font-size:16px;line-height:1.85;color:var(--text);background:var(--paper-2);}

/* ============ CTA 带 ============ */
.cta-band{background:var(--ink);color:var(--invert);padding:56px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;min-height:150px;}
.cta-band h2{color:var(--invert);margin-bottom:10px;font-size:clamp(22px,2.2vw,30px);}
.cta-band p{color:rgba(244,241,233,.78);margin:0;font-size:15px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}
.cta-band .btn-ghost{color:var(--invert);border-color:rgba(244,241,233,.45);}
.cta-band .btn-ghost:hover{background:rgba(244,241,233,.12);border-color:var(--invert);color:#fff;}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:var(--invert);padding:56px 0 0;border-top:1px solid rgba(244,241,233,.14);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(244,241,233,.14);color:var(--invert);}
.footer-brand .brand-text{color:var(--invert);font-size:17px;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(244,241,233,.7);margin:0;max-width:300px;}
.footer-col h4{color:var(--invert);font-size:15px;margin-bottom:16px;letter-spacing:.04em;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:rgba(244,241,233,.7);}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-sub p{font-size:14px;color:rgba(244,241,233,.7);line-height:1.8;margin:0 0 14px;}
.sub-form{display:flex;gap:8px;}
.sub-form input{flex:1 1 auto;min-width:0;height:44px;border-radius:var(--r-sm);border:1px solid rgba(244,241,233,.28);background:rgba(244,241,233,.08);color:var(--invert);padding:0 12px;font-size:14px;}
.sub-form input::placeholder{color:rgba(244,241,233,.55);}
.sub-form input:focus{outline:none;border-color:var(--invert);box-shadow:0 0 0 3px rgba(244,241,233,.14);}
.sub-form button{flex:0 0 auto;height:44px;padding:0 18px;border-radius:var(--r-sm);border:1px solid var(--clay);background:var(--clay);color:#fff;font-size:14px;font-weight:600;}
.sub-form button:hover{background:var(--clay-deep);border-color:var(--clay-deep);}
.footer-bottom{border-top:1px solid rgba(244,241,233,.14);padding:18px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}
.footer-bottom p{margin:0;font-size:13px;color:rgba(244,241,233,.6);}
.footer-bottom a{font-size:13px;color:rgba(244,241,233,.6);}
.footer-bottom a:hover{color:#fff;}

/* ============ 浮动 CTA ============ */
.float-cta{position:fixed;right:24px;bottom:24px;z-index:1040;display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 22px;border-radius:999px;background:var(--clay);color:#fff;font-size:15px;font-weight:600;box-shadow:0 8px 24px rgba(196,85,47,.28);opacity:0;visibility:hidden;transform:translateY(12px);transition:all .22s ease-out;}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--clay-deep);color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-channels{gap:18px;}
  .nav-search input{width:170px;}
  .hero-inner{gap:32px;}
  .points-grid{gap:32px;}
}
@media (max-width:991.98px){
  .nav-channels{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:flex;}
  .nav-top-inner{gap:16px;justify-content:space-between;}
  .hero-inner{grid-template-columns:1fr;min-height:0;padding-bottom:40px;}
  .hero-visual{order:-1;}
  .hero-visual img{aspect-ratio:16/9;}
  .points-grid{grid-template-columns:1fr;}
  .points-aside{position:static;}
  .demo-row{grid-template-columns:1fr;gap:24px;}
  .demo-row.reverse .demo-media{order:0;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .price-row{grid-template-columns:1fr 1fr;gap:18px;}
  .price-side{text-align:left;grid-column:1 / -1;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;}
  .price-side .btn{margin-top:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media (max-width:767.98px){
  body{font-size:16px;line-height:1.85;}
  .container{padding-left:18px;padding-right:18px;}
  .section{padding:48px 0;}
  .news-grid{grid-template-columns:1fr;}
  .news-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .stat-strip{grid-template-columns:1fr 1fr;}
  .stat-num{font-size:32px;}
  .float-cta{left:0;right:0;bottom:0;height:52px;border-radius:0;justify-content:center;padding:0 18px calc(env(safe-area-inset-bottom,0px));box-shadow:0 -4px 18px rgba(23,51,44,.14);}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .price-row{grid-template-columns:1fr;padding:20px;}
  .cta-band{padding:44px 0;}
}
@media (max-width:575.98px){
  .brand-text{font-size:15px;}
  .hero-actions .btn,.cta-actions .btn{width:100%;}
  .stat-strip{grid-template-columns:1fr;}
  .news-foot{flex-wrap:wrap;gap:8px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: article */
:root{
  --ink:#17332C;
  --ink-deep:#0F241F;
  --clay:#C4552F;
  --clay-deep:#A3441F;
  --paper:#F7F4ED;
  --paper-2:#EFEAE0;
  --card:#FFFFFF;
  --line:#E2DCD0;
  --line-strong:#CFC7B7;
  --text:#23282A;
  --muted:#6B7168;
  --invert:#F4F1E9;
  --ok:#3F6B4A;
  --warn:#B07C2A;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  --serif:"Songti SC","Noto Serif SC",Georgia,"Times New Roman",serif;
  --num:"Inter",system-ui,-apple-system,sans-serif;
  --r-sm:4px;
  --r-md:6px;
  --r-lg:8px;
  --shadow-hover:0 8px 24px rgba(23,51,44,.08);
  --shadow-nav:0 2px 10px rgba(23,51,44,.06);
  --container:1200px;

  --bs-primary:#17332C;
  --bs-body-bg:#F7F4ED;
  --bs-body-color:#23282A;
  --bs-body-font-family:var(--sans);
  --bs-border-color:#E2DCD0;
  --bs-border-radius:6px;
  --bs-link-color:#17332C;
  --bs-link-hover-color:#C4552F;
  --bs-font-sans-serif:var(--sans);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--clay);}
button{font-family:inherit;}
input,button,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;border-radius:2px;}

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

/* ============ Header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(247,244,237,.97);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(120%) blur(6px);
  transition:box-shadow .2s ease-out;
}
.site-header.is-compact{box-shadow:var(--shadow-nav);}
.header-row{
  display:flex;
  align-items:center;
  gap:26px;
  height:64px;
  transition:height .2s ease-out;
}
.is-compact .header-row{height:58px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:30px;height:30px;border-radius:var(--r-sm);
  background:var(--ink);color:var(--invert);
  display:grid;place-items:center;
  font-family:var(--serif);font-size:16px;font-weight:700;line-height:1;
}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.01em;white-space:nowrap;}
.brand-accent{color:var(--clay);}
.nav-channels{display:flex;align-items:center;gap:22px;flex:1 1 auto;min-width:0;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:16px;
  font-weight:500;
  color:var(--text);
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:var(--ink);opacity:0;transition:opacity .18s ease-out;
}
.nav-link:hover{color:var(--clay);}
.nav-link:hover::after,.nav-link.is-active::after{opacity:1;}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.header-tools{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.search-box{position:relative;display:block;}
.search-box i{
  position:absolute;left:12px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--muted);pointer-events:none;
}
.search-box input{
  width:220px;height:36px;
  padding:0 12px 0 32px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  font-size:14px;
  outline:none;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.search-box input::placeholder{color:var(--muted);}
.search-box input:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(23,51,44,.12);}
.header-entry{
  font-size:14px;font-weight:600;color:var(--ink);
  padding:8px 14px;border:1px solid var(--line-strong);border-radius:var(--r-sm);
  white-space:nowrap;transition:all .18s ease-out;
}
.header-entry:hover{background:var(--ink);border-color:var(--ink);color:var(--invert);}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line-strong);border-radius:var(--r-sm);
  color:var(--ink);font-size:17px;cursor:pointer;
}
.menu-toggle:hover{background:var(--paper-2);}

.hotbar{background:var(--paper-2);border-top:1px solid var(--line);overflow:hidden;transition:max-height .22s ease-out;max-height:44px;}
.is-compact .hotbar{max-height:0;border-top-color:transparent;}
.hotbar-inner{display:flex;align-items:center;gap:14px;height:40px;overflow-x:auto;scrollbar-width:none;}
.hotbar-inner::-webkit-scrollbar{display:none;}
.hotbar-label{font-size:13px;color:var(--muted);flex:0 0 auto;letter-spacing:.02em;}
.hot-item{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13.5px;color:var(--text);white-space:nowrap;flex:0 0 auto;
}
.hot-item::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--clay);opacity:.7;}
.hot-item:hover{color:var(--clay);}

.read-progress{position:absolute;left:0;bottom:-1px;height:2px;width:100%;background:transparent;pointer-events:none;}
.read-progress span{display:block;height:100%;width:0;background:var(--clay);transition:width .1s linear;}

/* Offcanvas */
.offcanvas{background:var(--paper);}
.offcanvas-header{border-bottom:1px solid var(--line);}
.offcanvas-title{font-size:16px;font-weight:700;color:var(--ink);}
.mobile-nav{display:flex;flex-direction:column;}
.mobile-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 2px;font-size:16px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.mobile-nav a.is-active{color:var(--ink);font-weight:600;}
.mobile-nav a i{font-size:12px;color:var(--muted);}
.mobile-search{margin-top:18px;}
.mobile-search input{
  width:100%;height:44px;padding:0 12px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-sm);outline:none;font-size:14px;
}
.mobile-search input:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(23,51,44,.12);}

/* ============ Breadcrumb ============ */
.crumb-bar{padding:20px 0 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;line-height:1.6;color:var(--muted);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--clay);}
.crumb .sep{color:var(--line-strong);}
.crumb .current{color:var(--muted);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ============ Article head ============ */
.article-head{padding:22px 0 30px;border-bottom:1px solid var(--line);}
.badge-cat{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-sm);
  background:rgba(23,51,44,.1);
  color:var(--ink);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.article-title{
  font-family:var(--serif);
  font-size:clamp(28px,3.6vw,40px);
  line-height:1.35;
  letter-spacing:.01em;
  margin:14px 0 16px;
  color:var(--ink);
  max-width:920px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:0;font-size:13px;color:var(--muted);line-height:1.6;}
.meta-row > span{padding:0 14px;border-right:1px solid var(--line-strong);}
.meta-row > span:first-child{padding-left:0;}
.meta-row > span:last-child{border-right:0;}
.head-rule{width:64px;height:3px;background:var(--clay);border-radius:2px;margin-top:20px;}
.lede{
  margin-top:24px;
  max-width:860px;
  padding:20px 22px;
  background:var(--paper-2);
  border-left:3px solid var(--ink);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
}

/* ============ Layout ============ */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:48px;
  padding:44px 0 8px;
  align-items:start;
}
.article-main{min-width:0;}
.article-side{position:sticky;top:96px;}

/* ============ Article body ============ */
.article-body{
  max-width:760px;
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  overflow-wrap:break-word;
  word-break:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 18px;}
.article-body h2{
  font-family:var(--serif);
  font-size:26px;
  line-height:1.42;
  color:var(--ink);
  margin:38px 0 14px;
  padding-left:14px;
  border-left:4px solid var(--ink);
  scroll-margin-top:120px;
}
.article-body h3{
  font-size:20px;
  line-height:1.55;
  color:var(--ink);
  margin:28px 0 12px;
  scroll-margin-top:120px;
}
.article-body h4{font-size:17px;line-height:1.6;margin:22px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:24px;list-style:revert;}
.article-body li{margin-bottom:8px;line-height:1.9;}
.article-body img{border-radius:var(--r-md);border:1px solid var(--line);margin:22px 0 10px;}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:8px;}
.article-body blockquote{
  margin:24px 0;
  padding:14px 20px;
  background:var(--paper-2);
  border-left:3px solid var(--clay);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body a{color:var(--ink);text-decoration:underline;text-underline-offset:4px;}
.article-body a:hover{color:var(--clay);}
.article-body strong{color:var(--ink);}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:18px 0;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-body th{background:var(--paper-2);font-weight:600;}
.article-body hr{border:0;border-top:1px dashed var(--line-strong);margin:30px 0;}
.article-body code{background:var(--paper-2);padding:2px 6px;border-radius:var(--r-sm);font-size:15px;}

/* empty state */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;min-height:280px;
  background:var(--paper-2);
  border:1px dashed var(--line-strong);
  border-radius:var(--r-md);
  padding:40px 24px;text-align:center;
  color:var(--muted);
}
.empty-state i{font-size:30px;color:var(--line-strong);}
.empty-state p{font-size:16px;line-height:1.8;color:var(--muted);}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-sm);
  background:var(--clay);color:#fff;border:1px solid var(--clay);
  font-size:16px;font-weight:600;line-height:1;
  cursor:pointer;transition:all .18s ease-out;
}
.btn-main:hover{background:var(--clay-deep);border-color:var(--clay-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-main:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-sm);
  background:transparent;color:var(--text);border:1px solid var(--line-strong);
  font-size:16px;font-weight:600;line-height:1;cursor:pointer;
  transition:all .18s ease-out;
}
.btn-ghost:hover{background:var(--paper-2);border-color:var(--ink);color:var(--ink);}
.btn-ghost:active{transform:translateY(1px);}

/* tags */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line);}
.tag-row .tag-label{font-size:13px;color:var(--muted);margin-right:2px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;
  border-radius:var(--r-sm);background:var(--paper-2);color:var(--text);
  font-size:12.5px;transition:all .18s ease-out;
}
.tag:hover{background:var(--ink);color:var(--invert);}

/* related under article */
.block-title{
  display:flex;align-items:center;gap:12px;
  font-family:var(--serif);font-size:22px;color:var(--ink);line-height:1.4;
  margin:40px 0 18px;
}
.block-title::before{content:"";width:4px;height:18px;background:var(--ink);border-radius:2px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;}
.rel-card{
  display:block;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);padding:16px;
  transition:all .18s ease-out;height:100%;
}
.rel-card:hover{border-color:rgba(23,51,44,.35);transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.rel-card .rel-tag{font-size:12px;color:var(--clay);font-weight:600;letter-spacing:.02em;}
.rel-card h3{
  font-size:15.5px;line-height:1.55;color:var(--ink);margin:8px 0 10px;font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-card .rel-time{font-size:12.5px;color:var(--muted);}

/* prev next */
.pager-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px;}
.pager{
  display:flex;flex-direction:column;gap:6px;
  padding:18px 20px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);transition:all .18s ease-out;
}
.pager:hover{border-color:rgba(23,51,44,.35);box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.pager .pager-k{font-size:12.5px;color:var(--muted);display:flex;align-items:center;gap:6px;}
.pager .pager-t{font-size:15.5px;font-weight:600;color:var(--ink);line-height:1.5;}
.pager.next{text-align:right;align-items:flex-end;}
.back-link{
  display:inline-flex;align-items:center;gap:8px;margin-top:28px;
  font-size:14px;font-weight:600;color:var(--ink);
}
.back-link:hover{color:var(--clay);text-decoration:underline;text-underline-offset:4px;}

/* ============ Sidebar ============ */
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:20px;margin-bottom:20px;
}
.side-card:last-child{margin-bottom:0;}
.side-title{
  display:flex;align-items:center;justify-content:space-between;
  font-size:15px;font-weight:700;color:var(--ink);margin-bottom:14px;
}
.side-title span.dot{display:inline-flex;align-items:center;gap:8px;}
.side-title .dot i{font-size:12px;color:var(--clay);}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;padding:7px 10px;border-left:2px solid var(--line);
  font-size:14px;line-height:1.6;color:var(--muted);
  transition:all .18s ease-out;
}
.toc-list a:hover{color:var(--ink);border-left-color:var(--ink);background:var(--paper-2);}
.toc-list a.lv3{padding-left:22px;font-size:13.5px;}
.side-list{display:flex;flex-direction:column;gap:0;}
.side-list a{
  display:block;padding:11px 0;border-bottom:1px dashed var(--line);
  font-size:14px;line-height:1.6;color:var(--text);
}
.side-list a:last-child{border-bottom:0;padding-bottom:0;}
.side-list a:hover{color:var(--clay);}
.side-list .s-meta{display:block;font-size:12.5px;color:var(--muted);margin-top:4px;}
.side-tags{display:flex;flex-wrap:wrap;gap:8px;}

/* ============ CTA strip ============ */
.cta-band{
  margin-top:64px;
  background:var(--ink);
  border-radius:var(--r-lg);
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(244,241,233,.16) 1px, transparent 1px);
  background-size:14px 14px;opacity:.5;pointer-events:none;
}
.cta-band-text{position:relative;z-index:1;}
.cta-band h2{color:var(--invert);font-family:var(--serif);font-size:clamp(22px,2.4vw,28px);line-height:1.4;margin-bottom:10px;}
.cta-band p{color:rgba(244,241,233,.72);font-size:15px;line-height:1.8;max-width:52ch;}
.cta-band-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1;}
.cta-band .btn-ghost{color:var(--invert);border-color:rgba(244,241,233,.4);}
.cta-band .btn-ghost:hover{background:rgba(244,241,233,.12);border-color:var(--invert);color:var(--invert);}

/* ============ Footer ============ */
.site-footer{background:var(--ink);color:var(--invert);padding:60px 0 0;margin-top:72px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:var(--invert);color:var(--ink);}
.footer-brand .brand-text{color:var(--invert);font-size:17px;font-weight:700;white-space:nowrap;}
.footer-brand .brand-accent{color:#E9A184;}
.footer-desc{font-size:14px;line-height:1.85;color:rgba(244,241,233,.68);max-width:34ch;}
.footer-col h4{font-size:15px;font-weight:600;color:var(--invert);margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(244,241,233,.7);transition:all .18s ease-out;}
.footer-links a:hover{color:var(--invert);text-decoration:underline;text-underline-offset:4px;}
.footer-sub p{font-size:13.5px;line-height:1.8;color:rgba(244,241,233,.66);margin-bottom:14px;}
.sub-form{display:flex;gap:8px;}
.sub-form input{
  flex:1 1 auto;min-width:0;height:44px;padding:0 12px;
  background:rgba(244,241,233,.08);
  border:1px solid rgba(244,241,233,.22);
  border-radius:var(--r-sm);color:var(--invert);font-size:14px;outline:none;
  transition:all .18s ease-out;
}
.sub-form input::placeholder{color:rgba(244,241,233,.45);}
.sub-form input:focus{border-color:rgba(244,241,233,.7);box-shadow:0 0 0 3px rgba(244,241,233,.14);}
.sub-form button{
  flex:0 0 auto;height:44px;padding:0 20px;border-radius:var(--r-sm);
  background:var(--clay);border:1px solid var(--clay);color:#fff;
  font-size:14px;font-weight:600;cursor:pointer;transition:all .18s ease-out;
}
.sub-form button:hover{background:var(--clay-deep);border-color:var(--clay-deep);}
.footer-bottom{
  border-top:1px solid rgba(244,241,233,.16);
  padding:18px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:rgba(244,241,233,.55);line-height:1.7;}
.footer-bottom a{color:rgba(244,241,233,.7);}
.footer-bottom a:hover{color:var(--invert);text-decoration:underline;text-underline-offset:4px;}

/* ============ Floating CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:28px;z-index:1040;
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 22px;border-radius:999px;
  background:var(--ink);color:var(--invert);
  font-size:14px;font-weight:600;
  box-shadow:0 8px 24px rgba(23,51,44,.22);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:all .24s ease-out;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--clay);color:#fff;}

/* ============ Responsive ============ */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr) 320px;gap:32px;}
  .search-box input{width:170px;}
  .cta-band{padding:36px 32px;}
}
@media (max-width:991.98px){
  .nav-channels{display:none;}
  .header-entry{display:none;}
  .menu-toggle{display:inline-flex;}
  .search-box{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;}
  .article-side{position:static;margin-top:40px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .cta-band p{max-width:100%;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .container{padding-left:18px;padding-right:18px;}
  .header-row{height:58px;gap:14px;}
  .brand-text{font-size:15px;}
  .brand-mark{width:26px;height:26px;font-size:14px;}
  .article-head{padding:18px 0 24px;}
  .article-title{margin:12px 0 14px;}
  .article-layout{padding-top:32px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:22px;margin:32px 0 12px;}
  .article-body h3{font-size:18px;}
  .lede{padding:16px 18px;font-size:15px;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .pager-row{grid-template-columns:minmax(0,1fr);}
  .pager.next{text-align:left;align-items:flex-start;}
  .cta-band{margin-top:48px;padding:28px 22px;border-radius:var(--r-md);}
  .site-footer{margin-top:56px;padding-top:44px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;padding-bottom:34px;}
  .float-cta{
    right:0;left:0;bottom:0;height:52px;border-radius:0;
    justify-content:center;padding:0 18px;padding-bottom:env(safe-area-inset-bottom);
    box-shadow:0 -2px 12px rgba(23,51,44,.18);
  }
  .article-body table{font-size:14px;}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .crumb .current{max-width:100%;white-space:normal;}
  .meta-row > span{padding:0 10px;}
  .sub-form{flex-direction:column;}
  .sub-form button{width:100%;}
  .btn-main,.btn-ghost{width:100%;}
  .cta-band-actions{width:100%;}
}

/* roulang page: category1 */
:root{
  --ink:#17332C;
  --ink-deep:#0F241F;
  --clay:#C4552F;
  --clay-deep:#A3441F;
  --paper:#F7F4ED;
  --paper-2:#EFEAE0;
  --card:#FFFFFF;
  --line:#E2DCD0;
  --line-strong:#CFC7B7;
  --text:#23282A;
  --muted:#6B7168;
  --invert:#F4F1E9;
  --success:#3F6B4A;
  --warn:#B07C2A;
  --r-s:4px;
  --r-m:6px;
  --r-l:8px;
  --sh-nav:0 2px 10px rgba(23,51,44,.06);
  --sh-hover:0 8px 24px rgba(23,51,44,.08);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Inter",system-ui,-apple-system,sans-serif;
  --font-serif:"Songti SC","Noto Serif SC",Georgia,serif;
  --bs-primary:#17332C;
  --bs-body-bg:#F7F4ED;
  --bs-body-color:#23282A;
  --bs-border-color:#E2DCD0;
  --bs-border-radius:6px;
  --bs-link-color:#17332C;
  --bs-link-hover-color:#C4552F;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Inter",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--clay)}
p{margin:0 0 18px}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);letter-spacing:.01em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px}

.container,
.container-sm,
.container-md,
.container-lg,
.container-xl{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(247,244,237,.97);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-nav)}
.nav-top{
  display:flex;
  align-items:center;
  gap:22px;
  height:64px;
}
.nav-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  font-size:18px;
  font-weight:700;
  color:var(--ink);
  white-space:nowrap;
}
.nav-brand:hover{color:var(--ink)}
.brand-mark{
  width:30px;height:30px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--ink);
  color:var(--invert);
  border-radius:var(--r-s);
  font-size:15px;
  font-weight:700;
  letter-spacing:0;
}
.brand-accent{color:var(--clay)}
.nav-channels{
  display:flex;
  align-items:center;
  gap:4px;
  flex:1 1 auto;
  min-width:0;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:64px;
  padding:0 14px;
  font-size:16px;
  font-weight:500;
  color:var(--muted);
  white-space:nowrap;
}
.nav-link:hover{color:var(--ink)}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:0;
  height:2px;
  background:transparent;
  transition:background .18s ease;
}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{background:var(--ink)}
.nav-tools{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-search{
  position:relative;
  display:flex;
  align-items:center;
}
.nav-search svg{
  position:absolute;
  left:12px;
  width:16px;height:16px;
  stroke:var(--muted);
  fill:none;
  pointer-events:none;
}
.nav-search input{
  width:220px;
  height:36px;
  padding:0 12px 0 34px;
  font-size:14px;
  color:var(--text);
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-s);
  outline:none;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search input::placeholder{color:var(--muted)}
.nav-search input:focus{
  border-color:var(--ink);
  box-shadow:0 0 0 3px rgba(23,51,44,.12);
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  background:transparent;
  border:1px solid var(--line-strong);
  border-radius:var(--r-s);
  cursor:pointer;
}
.nav-toggle svg{width:20px;height:20px;stroke:var(--ink);fill:none;stroke-width:2}
.nav-trend{
  background:var(--paper-2);
  border-top:1px solid var(--line);
  overflow:hidden;
  max-height:41px;
  opacity:1;
  transition:max-height .25s ease,opacity .2s ease;
}
.site-header.is-stuck .nav-trend{max-height:0;opacity:0;border-top-color:transparent}
.nav-trend-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:40px;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-trend-inner::-webkit-scrollbar{display:none}
.trend-label{
  flex-shrink:0;
  font-size:12px;
  font-weight:600;
  color:var(--clay);
  letter-spacing:.08em;
}
.trend-item{
  position:relative;
  flex-shrink:0;
  padding-left:12px;
  font-size:13px;
  color:var(--muted);
  white-space:nowrap;
}
.trend-item::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  width:4px;height:4px;
  margin-top:-2px;
  border-radius:50%;
  background:var(--line-strong);
}
.trend-item:hover{color:var(--ink)}
.trend-item:hover::before{background:var(--clay)}

/* 移动端抽屉 */
.offcanvas-panel{
  --bs-offcanvas-width:320px;
  background:var(--paper);
  border-left:1px solid var(--line);
}
.offcanvas-panel .offcanvas-header{
  border-bottom:1px solid var(--line);
  padding:18px 20px;
}
.offcanvas-panel .offcanvas-title{font-size:16px;font-weight:700;color:var(--ink)}
.offcanvas-panel .offcanvas-body{padding:8px 20px 24px}
.m-nav-list{margin:0 0 20px}
.m-nav-list li{border-bottom:1px solid var(--line)}
.m-nav-list a{
  display:block;
  padding:14px 2px;
  font-size:15px;
  font-weight:500;
  color:var(--ink);
}
.m-nav-list a.is-active{color:var(--clay)}
.m-search{
  display:flex;
  gap:8px;
  margin-top:8px;
}
.m-search input{
  flex:1;
  height:44px;
  padding:0 12px;
  font-size:15px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-s);
  outline:none;
}
.m-search input:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(23,51,44,.12)}

/* ============ 通用元素 ============ */
.btn-clay,
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:48px;
  padding:14px 28px;
  font-size:16px;
  font-weight:600;
  line-height:1;
  border-radius:var(--r-s);
  border:1px solid transparent;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-clay{background:var(--clay);color:#fff}
.btn-clay:hover{background:var(--clay-deep);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(196,85,47,.22)}
.btn-clay:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-strong)}
.btn-ghost:hover{color:var(--ink);border-color:var(--ink);background:var(--paper-2)}
.btn-ghost-light{background:transparent;color:var(--invert);border-color:rgba(244,241,233,.4)}
.btn-ghost-light:hover{background:rgba(244,241,233,.12);color:#fff;border-color:rgba(244,241,233,.75)}
.badge-tag{
  display:inline-flex;
  align-items:center;
  height:22px;
  padding:0 8px;
  font-size:12px;
  line-height:1;
  font-weight:500;
  color:var(--text);
  background:var(--paper-2);
  border-radius:var(--r-s);
  white-space:nowrap;
}
.badge-tag.is-key{
  color:var(--ink);
  background:rgba(23,51,44,.1);
}
.section{padding:72px 0}
.section-alt{background:var(--paper-2)}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
}
.section-title{
  position:relative;
  padding-left:16px;
  font-family:var(--font-serif);
  font-size:clamp(24px,2.4vw,32px);
  line-height:1.35;
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;top:.22em;bottom:.22em;
  width:4px;
  background:var(--ink);
  border-radius:2px;
}
.section-sub{
  margin:10px 0 0 16px;
  font-size:15px;
  color:var(--muted);
  line-height:1.8;
}
.text-link{
  font-size:15px;
  font-weight:500;
  color:var(--ink);
  border-bottom:1px solid transparent;
}
.text-link:hover{border-bottom-color:var(--clay);color:var(--clay)}

/* ============ 分类头部 ============ */
.cat-hero{
  position:relative;
  background:var(--paper-2);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    repeating-linear-gradient(0deg,rgba(23,51,44,.055) 0 1px,transparent 1px 32px),
    repeating-linear-gradient(90deg,rgba(23,51,44,.055) 0 1px,transparent 1px 32px);
  opacity:.9;
  pointer-events:none;
}
.cat-hero-inner{
  position:relative;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  min-height:200px;
  padding:44px 0 36px;
}
.cat-hero-main{max-width:660px}
.cat-hero h1{
  font-family:var(--font-serif);
  font-size:clamp(28px,3.2vw,40px);
  line-height:1.3;
  margin-bottom:14px;
}
.cat-hero-desc{
  font-size:16px;
  color:var(--muted);
  line-height:1.85;
  margin:0;
}
.cat-hero-stat{
  flex-shrink:0;
  padding:16px 18px;
  background:rgba(255,255,255,.72);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  text-align:right;
}
.cat-hero-stat strong{
  display:block;
  font-family:var(--font-serif);
  font-size:30px;
  line-height:1.1;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.cat-hero-stat span{font-size:13px;color:var(--muted)}

.cat-anchors{
  position:sticky;
  top:64px;
  z-index:1020;
  background:var(--paper);
  border-bottom:1px solid var(--line);
}
.cat-anchors-inner{
  display:flex;
  align-items:center;
  gap:8px;
  height:56px;
  overflow-x:auto;
  scrollbar-width:none;
}
.cat-anchors-inner::-webkit-scrollbar{display:none}
.chip{
  flex-shrink:0;
  display:inline-flex;
  align-items:center;
  height:34px;
  padding:0 14px;
  font-size:14px;
  font-weight:500;
  color:var(--muted);
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-s);
  transition:all .18s ease;
}
.chip:hover{color:var(--ink);border-color:var(--line-strong);background:var(--paper-2)}
.chip.is-on{color:#fff;background:var(--ink);border-color:var(--ink)}

.lead-block{
  padding:36px 0 0;
}
.lead-text{
  max-width:860px;
  font-size:17px;
  line-height:1.95;
  color:var(--text);
  margin:0;
}

/* ============ 入口卡片区 ============ */
.entry-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 340px;
  gap:32px;
  align-items:start;
}
.entry-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(232px,1fr));
  gap:24px;
}
.entry-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  overflow:hidden;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.entry-card:hover{
  transform:translateY(-2px);
  border-color:rgba(23,51,44,.3);
  box-shadow:var(--sh-hover);
}
.entry-thumb{
  position:relative;
  aspect-ratio:16/9;
  background:var(--paper-2);
  overflow:hidden;
}
.entry-thumb img{
  width:100%;height:100%;
  object-fit:cover;
}
.entry-thumb .badge-tag{
  position:absolute;
  left:10px;bottom:10px;
  background:rgba(255,255,255,.92);
  color:var(--ink);
}
.entry-body{
  display:flex;
  flex-direction:column;
  flex:1;
  padding:18px 20px 20px;
}
.entry-body h3{
  font-size:18px;
  line-height:1.5;
  margin-bottom:8px;
}
.entry-body h3 a{color:var(--ink)}
.entry-body h3 a:hover{color:var(--clay)}
.entry-body p{
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
  margin:0 0 16px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.entry-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:14px;
  border-top:1px dashed var(--line);
  font-size:13px;
  color:var(--muted);
}
.entry-meta a{font-size:13px;font-weight:500;color:var(--ink)}
.entry-meta a:hover{color:var(--clay);text-decoration:underline;text-underline-offset:4px}

/* 侧栏 */
.side-col{
  position:sticky;
  top:136px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.side-box{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-m);
  padding:20px;
}
.side-box h3{
  font-size:15px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--ink);
  margin-bottom:14px;
  padding-bottom:12px;
  border-bottom:1px solid var(--line);
}
.side-links li + li{border-top:1px dashed var(--line)}
.side-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:11px 0;
  font-size:14px;
  color:var(--text);
}
.side-links a:hover{color:var(--clay)}
.side-links .arrow{color:var(--line-strong);font-size:13px}
.side-tags{display:flex;flex-wrap:wrap;gap:8px}
.side-tags a{
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 10px;
  font-size:13px;
  color:var(--muted);
  background:var(--paper-2);
  border-radius:var(--r-s);
}
.side-tags a:hover{background:var(--ink);color:#fff}
.side-list li + li{
  border-top:1px dashed var(--line);
  margin-top:12px;
  padding-top:12px;
}
.side-list time{
  display:block;
  font-size:12px;
  color:var(--clay);
  font-variant-numeric:tabular-nums;
  margin-bottom:4px;
}
.side-list a{
  display:block;
  font-size:14px;
  line-height:1.65;
  color:var(--text);
}
.side-list a:hover{color:var(--clay)}

/* ============ 流程 ============ */
.flow-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;
  border:1px solid var(--line);
  border-radius:var(--r-m);
  background:var(--card);
  overflow:hidden;
}
.flow-step{
  position:relative;
  padding:28px 24px 30px;
  border-right:1px solid var(--line);
}
.flow-step:last-child{border-right:0}
.flow-step::after{
  content:"";
  position:absolute;
  left:24px;top:56px;bottom:30px;
  width:1px;
  background:linear-gradient(180deg,var(--line),transparent);
}
.flow-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;height:36px;
  margin-bottom:16px;
  font-size:14px;
  font-weight:700;
  color:var(--ink);
  border:1px solid var(--line-strong);
  border-radius:50%;
  font-variant-numeric:tabular-nums;
  background:var(--paper);
}
.flow-step h3{font-size:17px;line-height:1.5;margin-bottom:8px;position:relative;z-index:1;background:var(--card);display:inline-block}
.flow-step p{font-size:14px;line-height:1.85;color:var(--muted);margin:0}

/* ============ 核对清单 ============ */
.check-band{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
}
.check-item{
  padding:24px;
  background:var(--card);
  border:1px solid var(--line);
  border-left:3px solid var(--ink);
  border-radius:var(--r-m);
}
.check-item h3{
  font-size:16px;
  margin-bottom:10px;
  display:flex;
  align-items:center;
  gap:8px;
}
.check-item h3 .dot{
  width:8px;height:8px;
  border-radius:50%;
  background:var(--clay);
  flex-shrink:0;
}
.check-item ul li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  line-height:1.9;
  color:var(--muted);
}
.check-item ul li::before{
  content:"✓";
  position:absolute;
  left:0;top:0;
  color:var(--success);
  font-size:13px;
}
.check-note{
  margin-top:24px;
  padding:16px 20px;
  background:var(--paper-2);
  border-radius:var(--r-m);
  font-size:14px;
  color:var(--muted);
}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px}
.accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
}
.accordion-item:first-child{border-top:1px solid var(--line)}
.accordion-header{margin:0}
.accordion-button{
  position:relative;
  width:100%;
  padding:20px 56px 20px 0;
  font-size:17px;
  font-weight:500;
  line-height:1.7;
  color:var(--ink);
  background:transparent;
  border:0;
  border-radius:0;
  box-shadow:none;
  text-align:left;
}
.accordion-button::after{display:none}
.accordion-button::before{
  content:"+";
  position:absolute;
  right:6px;top:50%;
  transform:translateY(-50%);
  font-size:22px;
  font-weight:400;
  color:var(--muted);
  line-height:1;
}
.accordion-button:not(.collapsed)::before{content:"–";color:var(--clay)}
.accordion-button:hover{color:var(--clay)}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--ink);outline-offset:-2px}
.accordion-button:not(.collapsed){
  color:var(--ink);
  background:transparent;
}
.accordion-body{
  padding:0 0 22px;
  font-size:15px;
  line-height:1.9;
  color:var(--muted);
}
.accordion-body p:last-child{margin-bottom:0}

/* ============ CTA ============ */
.cta-band{
  background:var(--ink);
  color:var(--invert);
  padding:56px 0;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
}
.cta-copy h2{
  font-family:var(--font-serif);
  font-size:clamp(22px,2.2vw,30px);
  line-height:1.4;
  color:var(--invert);
  margin-bottom:10px;
}
.cta-copy p{
  margin:0;
  font-size:15px;
  line-height:1.85;
  color:rgba(244,241,233,.78);
}
.cta-actions{display:flex;gap:14px;flex-shrink:0}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--ink);
  color:var(--invert);
  border-top:1px solid rgba(244,241,233,.12);
  padding:56px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr .8fr .8fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:var(--invert);
  margin-bottom:16px;
}
.footer-brand .brand-mark{background:var(--invert);color:var(--ink)}
.footer-desc{
  font-size:14px;
  line-height:1.85;
  color:rgba(244,241,233,.7);
  margin:0;
  max-width:330px;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--invert);
  margin-bottom:16px;
}
.footer-links li + li{margin-top:10px}
.footer-links a{
  font-size:14px;
  color:rgba(244,241,233,.7);
}
.footer-links a:hover{
  color:#fff;
  text-decoration:underline;
  text-underline-offset:4px;
}
.footer-sub p{
  font-size:14px;
  line-height:1.8;
  color:rgba(244,241,233,.7);
  margin:0 0 14px;
}
.sub-form{display:flex;gap:8px}
.sub-form input{
  flex:1;
  min-width:0;
  height:44px;
  padding:0 12px;
  font-size:14px;
  color:var(--text);
  background:rgba(255,255,255,.95);
  border:1px solid transparent;
  border-radius:var(--r-s);
  outline:none;
}
.sub-form input:focus{
  border-color:var(--clay);
  box-shadow:0 0 0 3px rgba(196,85,47,.28);
}
.sub-form button{
  height:44px;
  padding:0 20px;
  font-size:14px;
  font-weight:600;
  color:#fff;
  background:var(--clay);
  border:0;
  border-radius:var(--r-s);
  cursor:pointer;
  transition:background .18s ease;
}
.sub-form button:hover{background:var(--clay-deep)}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 0;
  border-top:1px solid rgba(244,241,233,.12);
  font-size:13px;
  color:rgba(244,241,233,.55);
}
.footer-bottom a{color:rgba(244,241,233,.7)}
.footer-bottom a:hover{color:#fff}
.footer-bottom p{margin:0}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:1040;
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:13px 22px;
  font-size:15px;
  font-weight:600;
  color:#fff;
  background:var(--clay);
  border-radius:999px;
  box-shadow:0 10px 26px rgba(196,85,47,.28);
  opacity:0;
  transform:translateY(14px);
  pointer-events:none;
  transition:opacity .25s ease,transform .25s ease,background .18s ease;
}
.float-cta:hover{background:var(--clay-deep);color:#fff}
.float-cta.is-on{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta svg{width:16px;height:16px;fill:none;stroke:#fff;stroke-width:2}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .entry-layout{grid-template-columns:minmax(0,1fr) 300px;gap:26px}
  .nav-search input{width:170px}
  .footer-grid{grid-template-columns:1.2fr .8fr .8fr 1.1fr;gap:28px}
}
@media (max-width:991.98px){
  .nav-channels{display:none}
  .nav-search{display:none}
  .nav-toggle{display:inline-flex}
  .nav-top{height:58px;gap:12px}
  .nav-brand{font-size:16px}
  .nav-toggle{width:44px;height:44px}
  .cat-anchors{top:58px}
  .cat-hero-inner{
    flex-direction:column;
    align-items:flex-start;
    gap:22px;
    min-height:0;
    padding:36px 0 32px;
  }
  .cat-hero-stat{text-align:left;width:100%}
  .cat-hero-stat strong{display:inline-block;margin-right:8px;font-size:24px}
  .entry-layout{grid-template-columns:1fr}
  .side-col{position:static;top:auto;flex-direction:row;flex-wrap:wrap}
  .side-box{flex:1 1 300px}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow-step:nth-child(2){border-right:0}
  .flow-step:nth-child(1),.flow-step:nth-child(2){border-bottom:1px solid var(--line)}
  .check-band{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:56px 0}
}
@media (max-width:767.98px){
  body{font-size:16px;line-height:1.85}
  .container,.container-sm,.container-md,.container-lg,.container-xl{padding-left:18px;padding-right:18px}
  .section{padding:48px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px}
  .entry-grid{grid-template-columns:1fr;gap:18px}
  .lead-text{font-size:16px}
  .flow-grid{grid-template-columns:1fr}
  .flow-step{border-right:0;border-bottom:1px solid var(--line);padding:22px 20px 24px}
  .flow-step:last-child{border-bottom:0}
  .flow-step::after{display:none}
  .check-item{padding:20px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn-clay,.cta-actions .btn-ghost-light{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;padding-bottom:76px}
  .float-cta{
    left:0;right:0;bottom:0;
    justify-content:center;
    border-radius:0;
    padding:14px 18px calc(14px + env(safe-area-inset-bottom));
    box-shadow:0 -6px 18px rgba(23,51,44,.14);
  }
  .side-col{flex-direction:column}
  .side-box{width:100%}
  .cat-hero h1{font-size:26px}
}
@media (max-width:575.98px){
  .btn-clay,.btn-ghost{width:100%}
  .entry-meta{flex-wrap:wrap;gap:6px}
  .nav-brand .brand-text{font-size:15px}
}

/* roulang page: category2 */
:root{
  --ink:#17332C;
  --ink-deep:#0F241F;
  --clay:#C4552F;
  --clay-deep:#A3441F;
  --paper:#F7F4ED;
  --paper-2:#EFEAE0;
  --card:#FFFFFF;
  --line:#E2DCD0;
  --line-strong:#CFC7B7;
  --text:#23282A;
  --muted:#6B7168;
  --inverse:#F4F1E9;
  --ok:#3F6B4A;
  --warn:#B07C2A;
  --r-sm:4px;
  --r-md:6px;
  --r-lg:8px;
  --sh-1:0 2px 10px rgba(23,51,44,.06);
  --sh-2:0 8px 24px rgba(23,51,44,.08);
  --nav-top:64px;
  --nav-bot:40px;
  --bs-primary:#17332C;
  --bs-primary-rgb:23,51,44;
  --bs-body-bg:#F7F4ED;
  --bs-body-color:#23282A;
  --bs-body-font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --bs-border-color:#E2DCD0;
  --bs-border-radius:6px;
  --bs-link-color:#17332C;
  --bs-link-hover-color:#C4552F;
  --bs-emphasis-color:#23282A;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;background:var(--paper);color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:17px;line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease,opacity .18s ease;}
a:hover{color:var(--clay);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);}
h1{font-family:"Songti SC","Noto Serif SC",Georgia,serif;font-size:clamp(30px,3.6vw,44px);line-height:1.3;letter-spacing:.01em;}
h2{font-family:"Songti SC","Noto Serif SC",Georgia,serif;font-size:clamp(24px,2.4vw,32px);line-height:1.35;letter-spacing:.01em;}
h3{font-size:20px;line-height:1.5;font-weight:600;}
h4{font-size:17px;line-height:1.6;font-weight:600;}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.narrow{width:100%;max-width:860px;margin:0 auto;padding:0 24px;}
.num-fig{font-family:"Inter",system-ui,-apple-system,sans-serif;font-variant-numeric:tabular-nums;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:var(--paper);
  border-bottom:1px solid var(--line);transition:box-shadow .2s ease,background .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);background:rgba(247,244,237,.98);}
.nav-top-inner{display:flex;align-items:center;gap:28px;height:var(--nav-top);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:32px;height:32px;border-radius:var(--r-sm);background:var(--ink);color:var(--inverse);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
  font-family:"Inter",system-ui,sans-serif;
}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.01em;white-space:nowrap;}
.brand-accent{color:var(--clay);}
.nav-channels{display:flex;align-items:center;gap:4px;flex:1 1 auto;min-width:0;overflow-x:auto;scrollbar-width:none;}
.nav-channels::-webkit-scrollbar{display:none;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:16px;font-weight:500;color:var(--text);white-space:nowrap;
}
.nav-link:hover{color:var(--clay);}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:8px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{position:relative;}
.nav-search input{
  width:220px;height:36px;border:1px solid var(--line-strong);background:var(--card);
  border-radius:var(--r-sm);padding:0 12px 0 34px;font-size:14px;color:var(--text);outline:none;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search input::placeholder{color:var(--muted);}
.nav-search input:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(23,51,44,.12);}
.nav-search .s-ico{
  position:absolute;left:11px;top:50%;transform:translateY(-50%);width:14px;height:14px;
  border:1.8px solid var(--muted);border-radius:50%;pointer-events:none;
}
.nav-search .s-ico::after{
  content:"";position:absolute;right:-4px;bottom:-3px;width:6px;height:1.8px;background:var(--muted);
  transform:rotate(45deg);border-radius:1px;
}
.nav-entry{
  height:36px;display:inline-flex;align-items:center;padding:0 16px;border:1px solid var(--line-strong);
  border-radius:var(--r-sm);font-size:14px;font-weight:600;color:var(--ink);background:transparent;
}
.nav-entry:hover{background:var(--paper-2);border-color:var(--ink);color:var(--ink);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-strong);background:transparent;
  border-radius:var(--r-sm);align-items:center;justify-content:center;gap:4px;flex-direction:column;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;}

/* 热词条 */
.hotbar{border-top:1px solid var(--line);background:var(--paper-2);}
.hot-inner{display:flex;align-items:center;gap:14px;height:var(--nav-bot);overflow-x:auto;scrollbar-width:none;}
.hot-inner::-webkit-scrollbar{display:none;}
.hot-label{font-size:13px;color:var(--muted);flex:0 0 auto;letter-spacing:.04em;}
.hot-list{display:flex;align-items:center;gap:20px;flex:0 0 auto;}
.hot-item{position:relative;padding-left:12px;font-size:13.5px;color:var(--text);white-space:nowrap;}
.hot-item::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--clay);
}
.hot-item:hover{color:var(--clay);}

/* ---------- 分类页头部 ---------- */
.hero-cat{
  background:var(--paper-2);
  background-image:
    linear-gradient(rgba(23,51,44,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(23,51,44,.055) 1px,transparent 1px);
  background-size:28px 28px;
  border-bottom:1px solid var(--line);
  padding:40px 0 0;
}
.hero-cat-inner{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:end;padding-bottom:26px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;margin-bottom:14px;
  background:rgba(23,51,44,.12);color:var(--ink);border-radius:var(--r-sm);
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
}
.hero-cat h1{max-width:14em;}
.hero-cat-side p{margin:0;font-size:15px;line-height:1.8;color:var(--muted);}
.hero-stat{
  display:flex;align-items:baseline;gap:8px;margin-top:12px !important;
  font-size:13.5px;color:var(--muted);
}
.hero-stat .num{font-family:"Inter",system-ui,sans-serif;font-variant-numeric:tabular-nums;font-size:26px;font-weight:700;color:var(--ink);line-height:1;}
.hero-anchors{display:flex;gap:8px;overflow-x:auto;padding-bottom:16px;scrollbar-width:none;}
.hero-anchors::-webkit-scrollbar{display:none;}
.hero-anchors a{
  flex:0 0 auto;display:inline-flex;align-items:center;height:34px;padding:0 14px;
  border:1px solid var(--line-strong);border-radius:var(--r-sm);background:var(--paper);
  font-size:14px;color:var(--text);
}
.hero-anchors a:hover{border-color:var(--ink);color:var(--ink);background:var(--card);}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0;}
.section-alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.sec-title{position:relative;padding-left:16px;}
.sec-title::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;background:var(--ink);border-radius:2px;}
.sec-sub{font-size:15px;color:var(--muted);line-height:1.8;max-width:520px;margin:0;}
.lead-text{
  font-size:17px;line-height:2;color:var(--text);margin:0;
  border-left:3px solid var(--clay);background:var(--card);border-radius:0 var(--r-md) var(--r-md) 0;
  padding:22px 26px;box-shadow:var(--sh-1);
}

/* 按钮 */
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-sm);font-size:16px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .18s ease;line-height:1;
}
.btn-main{background:var(--clay);color:#fff;}
.btn-main:hover{background:var(--clay-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-main:active{transform:none;box-shadow:none;}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text);}
.btn-ghost:hover{border-color:var(--ink);color:var(--ink);background:var(--paper-2);}
.text-link{font-size:15px;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:6px;}
.text-link:hover{color:var(--clay);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}

/* ---------- 编号列表流 ---------- */
.flow-list{border-top:1px solid var(--line);margin-top:8px;}
.flow-item{
  display:grid;grid-template-columns:88px 1fr 28px;gap:24px;align-items:center;
  padding:26px 4px;border-bottom:1px solid var(--line);
  transition:background .18s ease,padding-left .18s ease;
}
.flow-item:hover{background:var(--card);padding-left:14px;}
.flow-num{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  border:1px solid var(--line-strong);border-radius:var(--r-md);padding:8px 0;background:var(--card);
}
.flow-num .n{
  font-family:"Inter",system-ui,sans-serif;font-variant-numeric:tabular-nums;
  font-size:24px;font-weight:700;color:var(--ink);line-height:1.1;
}
.flow-num .cap{font-size:11.5px;color:var(--muted);letter-spacing:.08em;}
.flow-title{margin:0 0 4px;font-size:19px;font-weight:600;color:var(--ink);}
.flow-text{margin:0;font-size:15.5px;line-height:1.8;color:var(--muted);}
.flow-arrow{
  width:24px;height:24px;border-top:1.6px solid var(--line-strong);border-right:1.6px solid var(--line-strong);
  transform:rotate(45deg);justify-self:end;transition:border-color .18s ease,transform .18s ease;
}
.flow-item:hover .flow-arrow{border-color:var(--clay);transform:rotate(45deg) translate(2px,-2px);}

/* ---------- 场景区 ---------- */
.scene-grid{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:start;}
.scene-media{
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;background:var(--card);
}
.scene-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.scene-media figcaption{font-size:13px;color:var(--muted);padding:12px 16px;border-top:1px solid var(--line);text-align:center;}
.scene-item{display:flex;gap:18px;padding:20px 0;border-bottom:1px dashed var(--line-strong);}
.scene-item:first-child{padding-top:0;}
.scene-item:last-child{border-bottom:0;padding-bottom:0;}
.scene-idx{
  flex:0 0 40px;height:40px;border-radius:50%;border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;
  font-family:"Inter",system-ui,sans-serif;font-variant-numeric:tabular-nums;
  font-size:15px;font-weight:700;color:var(--ink);
}
.scene-item h3{margin:0 0 6px;font-size:18px;}
.scene-item p{margin:0;font-size:15px;line-height:1.85;color:var(--muted);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{
  display:inline-flex;align-items:center;height:22px;padding:0 8px;border-radius:var(--r-sm);
  background:var(--paper-2);color:var(--text);font-size:12.5px;line-height:1;
}
.tag.tag-ink{background:rgba(23,51,44,.12);color:var(--ink);font-weight:600;}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step;}
.step{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px 20px;transition:all .18s ease;
}
.step:hover{border-color:rgba(23,51,44,.3);transform:translateY(-2px);box-shadow:var(--sh-2);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;
  border-radius:50%;border:1px solid var(--line-strong);margin-bottom:14px;
  font-family:"Inter",system-ui,sans-serif;font-variant-numeric:tabular-nums;
  font-size:15px;font-weight:700;color:var(--ink);
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{margin:0;font-size:14.5px;line-height:1.8;color:var(--muted);}

/* ---------- 对照条 ---------- */
.compare-wrap{
  border:1px solid var(--line);border-radius:var(--r-md);background:var(--card);
  overflow-x:auto;
}
table.compare{width:100%;border-collapse:collapse;min-width:620px;}
table.compare th,table.compare td{
  padding:16px 20px;text-align:left;font-size:15px;line-height:1.7;
  border-bottom:1px solid var(--line);vertical-align:top;
}
table.compare thead th{
  background:var(--paper-2);color:var(--ink);font-weight:600;font-size:14px;letter-spacing:.02em;
  border-bottom:1px solid var(--line-strong);
}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare tbody tr:hover{background:rgba(239,234,224,.5);}
table.compare td:first-child{font-weight:600;color:var(--ink);width:30%;}
table.compare td:nth-child(2){color:var(--clay);font-weight:600;white-space:nowrap;}

/* ---------- FAQ ---------- */
.faq .accordion-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;
}
.faq .accordion-button{
  background:transparent;color:var(--text);font-size:17px;font-weight:500;line-height:1.6;
  padding:18px 20px;box-shadow:none;display:flex;align-items:center;gap:12px;text-align:left;
}
.faq .accordion-button:not(.collapsed){background:transparent;color:var(--ink);box-shadow:none;}
.faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--ink);outline-offset:-2px;}
.faq .accordion-button::after{display:none;}
.acc-sign{position:relative;flex:0 0 16px;height:16px;margin-left:auto;}
.acc-sign::before,.acc-sign::after{
  content:"";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  background:var(--ink);border-radius:1px;transition:opacity .2s ease,background .2s ease;
}
.acc-sign::before{width:14px;height:2px;}
.acc-sign::after{width:2px;height:14px;}
.faq .accordion-button:not(.collapsed) .acc-sign::after{opacity:0;}
.faq .accordion-body{
  background:var(--paper-2);padding:18px 20px;font-size:15.5px;line-height:1.85;color:var(--text);
}
.faq .accordion-body p:last-child{margin-bottom:0;}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--ink);color:var(--inverse);padding:56px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;}
.cta-band h2{color:var(--inverse);margin-bottom:10px;}
.cta-band p{margin:0;color:rgba(244,241,233,.75);font-size:15.5px;line-height:1.8;}
.cta-actions{display:flex;gap:12px;flex:0 0 auto;}
.cta-band .btn-main{background:var(--clay);}
.cta-band .btn-main:hover{background:var(--clay-deep);}
.cta-band .btn-ghost{border-color:rgba(244,241,233,.35);color:var(--inverse);}
.cta-band .btn-ghost:hover{background:rgba(244,241,233,.1);border-color:var(--inverse);color:var(--inverse);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--inverse);padding:56px 0 0;border-top:1px solid var(--ink-deep);}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1.2fr;gap:40px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:var(--inverse);color:var(--ink);}
.footer-brand .brand-text{color:var(--inverse);}
.footer-brand .brand-accent{color:#E39B7F;}
.footer-desc{font-size:14.5px;line-height:1.85;color:rgba(244,241,233,.68);margin:0;max-width:32em;}
.footer-col h4{color:var(--inverse);font-size:15px;letter-spacing:.04em;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14.5px;color:rgba(244,241,233,.7);}
.footer-links a:hover{color:var(--inverse);text-decoration:underline;text-underline-offset:4px;}
.footer-sub p{font-size:14px;line-height:1.8;color:rgba(244,241,233,.68);margin-bottom:14px;}
.sub-form{display:flex;gap:8px;}
.sub-form input{
  flex:1 1 auto;min-width:0;height:44px;border:1px solid rgba(244,241,233,.28);background:rgba(244,241,233,.08);
  color:var(--inverse);border-radius:var(--r-sm);padding:0 12px;font-size:14px;outline:none;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.sub-form input::placeholder{color:rgba(244,241,233,.5);}
.sub-form input:focus{border-color:var(--inverse);box-shadow:0 0 0 3px rgba(244,241,233,.15);}
.sub-form button{
  flex:0 0 auto;height:44px;padding:0 20px;border:0;border-radius:var(--r-sm);
  background:var(--clay);color:#fff;font-size:14px;font-weight:600;cursor:pointer;transition:background .18s ease;
}
.sub-form button:hover{background:var(--clay-deep);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  border-top:1px solid rgba(244,241,233,.15);padding:20px 0 24px;
}
.footer-bottom p{margin:0;font-size:13px;color:rgba(244,241,233,.6);}
.footer-bottom a{color:rgba(244,241,233,.7);}
.footer-bottom a:hover{color:var(--inverse);text-decoration:underline;text-underline-offset:4px;}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 22px;
  border-radius:999px;background:var(--clay);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 8px 24px rgba(196,85,47,.28);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease,background .18s ease;
}
.float-cta:hover{background:var(--clay-deep);color:#fff;}
.float-cta.is-on{opacity:1;visibility:visible;transform:none;}
.float-cta .dot{width:8px;height:8px;border-radius:50%;background:#fff;opacity:.9;}

/* ---------- 移动端抽屉 ---------- */
.offcanvas{background:var(--paper);color:var(--text);}
.offcanvas-header{border-bottom:1px solid var(--line);}
.offcanvas-title{font-size:16px;font-weight:700;color:var(--ink);}
.oc-nav li{border-bottom:1px solid var(--line);}
.oc-nav a{display:flex;align-items:center;min-height:48px;padding:0 4px;font-size:16px;font-weight:500;}
.oc-nav a.is-active{color:var(--clay);font-weight:600;}
.oc-search{display:flex;gap:8px;margin-top:20px;}
.oc-search input{
  flex:1 1 auto;min-width:0;height:44px;border:1px solid var(--line-strong);border-radius:var(--r-sm);
  padding:0 12px;font-size:14px;background:var(--card);color:var(--text);outline:none;
}
.oc-search input:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(23,51,44,.12);}
.oc-search button{
  flex:0 0 auto;height:44px;padding:0 18px;border:0;border-radius:var(--r-sm);
  background:var(--ink);color:var(--inverse);font-size:14px;font-weight:600;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-cat-inner{grid-template-columns:1fr;gap:18px;align-items:start;}
  .scene-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:991px){
  .nav-channels,.nav-search,.nav-entry{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-top-inner{gap:16px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .flow-item{grid-template-columns:72px 1fr 24px;gap:18px;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:24px;}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.85;padding-bottom:64px;}
  .container,.narrow{padding:0 18px;}
  .section{padding:48px 0;}
  .brand-text{font-size:15px;}
  h1{font-size:clamp(26px,7vw,32px);}
  h2{font-size:clamp(22px,5.6vw,26px);}
  .hero-cat{padding-top:28px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .flow-item{grid-template-columns:1fr 24px;gap:12px;padding:20px 0;}
  .flow-num{flex-direction:row;gap:8px;justify-content:flex-start;padding:6px 12px;width:max-content;}
  .flow-num .n{font-size:18px;}
  .flow-body{grid-column:1 / -1;}
  .flow-arrow{grid-row:1;grid-column:2;align-self:start;margin-top:6px;}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .sub-form{flex-direction:column;}
  .sub-form button{width:100%;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;}
  .float-cta{
    left:0;right:0;bottom:0;height:52px;border-radius:0;justify-content:center;
    padding:0 16px calc(0px + env(safe-area-inset-bottom));
  }
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:575px){
  .btn-main,.btn-ghost{width:100%;}
  .hero-anchors a{font-size:13px;height:32px;padding:0 12px;}
}

/* roulang page: category3 */
:root{
  --ink:#17332C;
  --ink-deep:#0F241F;
  --clay:#C4552F;
  --clay-deep:#A3441F;
  --paper:#F7F4ED;
  --paper-2:#EFEAE0;
  --card:#FFFFFF;
  --line:#E2DCD0;
  --line-strong:#CFC7B7;
  --text:#23282A;
  --muted:#6B7168;
  --inverse:#F4F1E9;
  --ok:#3F6B4A;
  --warn:#B07C2A;
  --radius-sm:4px;
  --radius-md:6px;
  --radius-lg:8px;
  --shadow-hover:0 8px 24px rgba(23,51,44,.08);
  --shadow-nav:0 2px 10px rgba(23,51,44,.06);
  --container:1200px;
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-serif:"Songti SC","Noto Serif SC",Georgia,serif;
  --bs-primary:#17332C;
  --bs-body-bg:#F7F4ED;
  --bs-body-color:#23282A;
  --bs-border-color:#E2DCD0;
  --bs-border-radius:6px;
  --bs-link-color:#17332C;
  --bs-link-hover-color:#C4552F;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--clay);}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:.01em;}
h1{font-family:var(--font-serif);font-size:clamp(30px,3.6vw,44px);line-height:1.3;font-weight:700;}
h2{font-family:var(--font-serif);font-size:clamp(24px,2.4vw,32px);line-height:1.35;font-weight:700;}
h3{font-size:20px;line-height:1.5;font-weight:600;font-family:var(--font-sans);}
h4{font-size:17px;line-height:1.6;font-weight:600;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--ink);outline-offset:2px;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- 按钮 ---------- */
.btn-clay,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-sm);font-size:16px;line-height:1;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  min-height:44px;
}
.btn-clay{background:var(--clay);color:#fff;border-color:var(--clay);}
.btn-clay:hover{background:var(--clay-deep);border-color:var(--clay-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-clay:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line-strong);}
.btn-ghost:hover{color:var(--ink);border-color:var(--ink);background:var(--paper-2);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:#fff;color:var(--ink);border-color:#fff;}
.btn-light:hover{background:var(--paper-2);color:var(--ink-deep);border-color:var(--paper-2);transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:var(--inverse);border-color:rgba(244,241,233,.5);}
.btn-outline-light:hover{background:rgba(244,241,233,.12);color:#fff;border-color:#fff;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink);}
.link-more:hover{color:var(--clay);text-decoration:underline;text-underline-offset:4px;}

/* ---------- 站点头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:var(--paper);
  border-bottom:1px solid var(--line);transition:box-shadow .2s ease,background .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav);background:rgba(247,244,237,.97);backdrop-filter:saturate(120%) blur(4px);}
.topbar-inner{display:flex;align-items:center;gap:24px;min-height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:32px;height:32px;border-radius:var(--radius-sm);background:var(--ink);color:var(--inverse);
  display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;font-family:var(--font-serif);
}
.brand-text{font-size:18px;font-weight:700;color:var(--ink);white-space:nowrap;letter-spacing:.01em;}
.brand-accent{color:var(--clay);}
.nav-channels{display:flex;align-items:center;gap:2px;flex:1 1 auto;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;padding:10px 14px;border-radius:var(--radius-sm);
  font-size:16px;font-weight:500;color:var(--text);white-space:nowrap;min-height:44px;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--ink);background:var(--paper-2);text-decoration:none;}
.nav-link.is-active{color:var(--ink);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--ink);border-radius:2px;
}
.topbar-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{position:relative;}
.nav-search input{
  width:220px;height:36px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);
  background:#fff;color:var(--text);font-size:14px;padding:0 12px 0 34px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search input::placeholder{color:var(--muted);}
.nav-search input:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(23,51,44,.12);outline:none;}
.nav-search .search-ico{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:14px;line-height:1;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);
  background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;}

/* 热词条 */
.trendbar{background:var(--paper-2);border-top:1px solid var(--line);}
.trendbar-inner{display:flex;align-items:center;gap:18px;min-height:40px;overflow-x:auto;scrollbar-width:thin;}
.trend-label{font-size:13px;font-weight:600;color:var(--ink);white-space:nowrap;}
.trend-item{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--muted);white-space:nowrap;padding:4px 0;}
.trend-item::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--clay);flex:0 0 auto;}
.trend-item:hover{color:var(--clay);}

/* ---------- 分类 Hero ---------- */
.hero-cat{position:relative;overflow:hidden;background:var(--paper-2);border-bottom:1px solid var(--line);padding:46px 0 42px;}
.hero-cat::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(to right,rgba(23,51,44,.07) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(23,51,44,.07) 1px,transparent 1px);
  background-size:52px 52px;
}
.hero-cat .container{position:relative;z-index:1;}
.hero-cat-inner{max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:22px;padding:0 10px;border-radius:var(--radius-sm);
  background:rgba(23,51,44,.10);color:var(--ink);font-size:13px;font-weight:600;letter-spacing:.02em;margin-bottom:14px;
}
.hero-cat h1{margin-bottom:14px;}
.hero-cat .hero-sub{font-size:16px;line-height:1.8;color:var(--muted);max-width:640px;margin-bottom:18px;}
.hero-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-size:14px;color:var(--muted);}
.hero-meta strong{color:var(--ink);font-weight:700;}
.hero-meta .dot-sep{width:1px;height:12px;background:var(--line-strong);display:inline-block;}

/* 锚点标签条 */
.anchor-bar{border-bottom:1px solid var(--line);background:var(--paper);}
.anchor-inner{display:flex;gap:10px;overflow-x:auto;padding:14px 0;scrollbar-width:thin;}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:var(--radius-sm);
  border:1px solid var(--line-strong);background:#fff;color:var(--text);font-size:14px;font-weight:500;
  white-space:nowrap;transition:all .18s ease;
}
.chip:hover{border-color:var(--ink);color:var(--ink);background:var(--paper-2);}
.chip.is-on{background:var(--ink);border-color:var(--ink);color:var(--inverse);}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0;}
.section-alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section-head .h2-wrap{position:relative;padding-left:16px;}
.section-head .h2-wrap::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--ink);}
.section-head p.sub{margin:10px 0 0;font-size:15px;color:var(--muted);max-width:640px;line-height:1.8;}

/* ---------- 图文分区 ---------- */
.split{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.split.reverse{grid-template-columns:5fr 7fr;}
.split.reverse .split-media{order:2;}
.split.reverse .split-body{order:1;}
.split + .split{margin-top:64px;}
.split-media{position:relative;border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--line);background:#fff;}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .35s ease;}
.split-media:hover img{transform:scale(1.02);}
.media-tag{
  position:absolute;left:12px;bottom:12px;background:rgba(23,51,44,.78);color:var(--inverse);
  font-size:13px;line-height:1;padding:8px 12px;border-radius:var(--radius-sm);letter-spacing:.02em;
}
.split-body h3{font-size:22px;margin-bottom:14px;line-height:1.45;font-family:var(--font-serif);font-weight:700;}
.split-body p{font-size:16px;line-height:1.9;color:var(--muted);margin-bottom:12px;}
.bullet-list{margin:18px 0 22px;display:grid;gap:10px;}
.bullet-list li{position:relative;padding-left:20px;font-size:15px;line-height:1.8;color:var(--text);}
.bullet-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--ink);opacity:.85;
}

/* ---------- 横向对比条 ---------- */
.cmp-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff;}
.cmp{min-width:820px;}
.cmp-row{display:grid;grid-template-columns:1.1fr 1.5fr 1.3fr 1.1fr .9fr;border-bottom:1px solid var(--line);}
.cmp-row:last-child{border-bottom:none;}
.cmp-cell{padding:16px 18px;font-size:15px;line-height:1.7;color:var(--text);border-right:1px solid var(--line);}
.cmp-cell:last-child{border-right:none;}
.cmp-head{background:var(--ink);border-bottom:none;}
.cmp-head .cmp-cell{color:var(--inverse);font-weight:600;font-size:14px;letter-spacing:.02em;border-right-color:rgba(244,241,233,.16);}
.cmp-row:not(.cmp-head):hover{background:var(--paper-2);}
.cmp-name{font-weight:600;color:var(--ink);}
.cmp-badge{
  display:inline-flex;align-items:center;height:22px;padding:0 8px;border-radius:var(--radius-sm);
  background:rgba(23,51,44,.10);color:var(--ink);font-size:12px;font-weight:600;margin-left:8px;vertical-align:middle;
}
.cmp-badge.warn{background:rgba(176,124,42,.14);color:var(--warn);}
.cmp-badge.ok{background:rgba(63,107,74,.14);color:var(--ok);}

/* ---------- 数据带 ---------- */
.stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;}
.stat-cell{background:#fff;padding:24px 22px;}
.stat-num{font-family:var(--font-serif);font-size:clamp(28px,3vw,38px);line-height:1.1;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;}
.stat-num em{font-style:normal;font-size:15px;font-weight:600;color:var(--muted);margin-left:4px;}
.stat-label{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.7;}

/* ---------- FAQ ---------- */
.accordion-item{
  border:1px solid var(--line)!important;border-radius:var(--radius-md)!important;overflow:hidden;
  margin-bottom:12px;background:#fff;transition:border-color .18s ease,box-shadow .18s ease;
}
.accordion-item:hover{border-color:var(--line-strong)!important;}
.accordion-button{
  position:relative;width:100%;background:#fff;color:var(--text);font-size:17px;font-weight:500;line-height:1.6;
  padding:20px 56px 20px 20px;box-shadow:none!important;border:none;text-align:left;
}
.accordion-button:not(.collapsed){background:var(--paper-2);color:var(--ink);font-weight:600;}
.accordion-button::after{display:none!important;}
.accordion-button::before{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:22px;line-height:1;color:var(--ink);font-weight:400;
}
.accordion-button:not(.collapsed)::before{content:"−";color:var(--clay);}
.accordion-body{padding:18px 20px 22px;background:var(--paper-2);color:var(--text);font-size:16px;line-height:1.85;}

/* ---------- CTA 带 ---------- */
.cta-band{background:var(--ink);color:var(--inverse);padding:64px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cta-band h2{color:var(--inverse);font-size:clamp(24px,2.4vw,30px);line-height:1.4;margin-bottom:12px;}
.cta-band p{color:rgba(244,241,233,.78);font-size:16px;line-height:1.8;max-width:560px;margin:0;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--inverse);border-top:1px solid rgba(244,241,233,.14);padding:60px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--inverse);color:var(--ink);}
.footer-brand .brand-text{color:var(--inverse);font-size:18px;}
.footer-brand .brand-accent{color:#E8926E;}
.footer-desc{color:rgba(244,241,233,.72);font-size:15px;line-height:1.85;max-width:340px;margin:0;}
.footer-col h4{color:var(--inverse);font-size:15px;font-weight:600;margin-bottom:16px;letter-spacing:.04em;}
.footer-links{display:grid;gap:10px;}
.footer-links a{color:rgba(244,241,233,.72);font-size:15px;line-height:1.6;}
.footer-links a:hover{color:var(--inverse);text-decoration:underline;text-underline-offset:4px;}
.footer-sub p{color:rgba(244,241,233,.72);font-size:15px;line-height:1.8;margin-bottom:14px;}
.sub-form{display:flex;gap:8px;}
.sub-form input{
  flex:1 1 auto;min-width:0;height:44px;border-radius:var(--radius-sm);border:1px solid rgba(244,241,233,.28);
  background:rgba(244,241,233,.08);color:var(--inverse);font-size:14px;padding:0 14px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.sub-form input::placeholder{color:rgba(244,241,233,.5);}
.sub-form input:focus{outline:none;border-color:var(--inverse);box-shadow:0 0 0 3px rgba(244,241,233,.14);}
.sub-form button{
  height:44px;padding:0 20px;border-radius:var(--radius-sm);border:1px solid var(--clay);
  background:var(--clay);color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:background .18s ease,border-color .18s ease;
}
.sub-form button:hover{background:var(--clay-deep);border-color:var(--clay-deep);}
.footer-bottom{
  border-top:1px solid rgba(244,241,233,.14);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(244,241,233,.6);
}
.footer-bottom p{margin:0;}
.footer-bottom a{color:rgba(244,241,233,.7);}
.footer-bottom a:hover{color:var(--inverse);}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:28px;z-index:1040;display:inline-flex;align-items:center;gap:8px;
  padding:14px 22px;border-radius:999px;background:var(--clay);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 8px 24px rgba(163,68,31,.28);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease,background .18s ease;
}
.float-cta:hover{background:var(--clay-deep);color:#fff;}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta .ico{font-size:15px;line-height:1;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .nav-search input{width:170px;}
  .split,.split.reverse{gap:32px;}
}
@media (max-width:991.98px){
  .nav-channels{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .topbar-inner{gap:12px;}
  .split,.split.reverse{grid-template-columns:1fr;}
  .split.reverse .split-media{order:1;}
  .split.reverse .split-body{order:2;}
  .split-media img{aspect-ratio:16/9;}
  .stat-band{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:56px 0;}
}
@media (max-width:767.98px){
  body{font-size:16px;line-height:1.85;}
  .container{padding:0 18px;}
  .section{padding:48px 0;}
  .hero-cat{padding:34px 0 30px;}
  .hero-cat .hero-sub{font-size:15px;}
  .section-head{margin-bottom:26px;}
  .split + .split{margin-top:44px;}
  .cta-band{padding:44px 0;}
  .cta-inner{gap:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .site-footer{padding-top:44px;}
  .float-cta{
    right:0;left:0;bottom:0;border-radius:0;justify-content:center;padding:16px 20px;
    padding-bottom:calc(16px + env(safe-area-inset-bottom));box-shadow:0 -6px 20px rgba(23,51,44,.14);
  }
  body.has-float{padding-bottom:0;}
  .footer-bottom{padding-bottom:calc(26px + 56px);}
}
@media (max-width:575.98px){
  .brand-text{font-size:15px;}
  .brand-mark{width:28px;height:28px;font-size:15px;}
  .stat-band{grid-template-columns:1fr;}
  .btn-clay,.btn-ghost,.btn-light,.btn-outline-light{width:100%;}
  .cta-actions{width:100%;}
  .hero-meta{font-size:13px;gap:8px 14px;}
  .accordion-button{font-size:16px;padding:18px 50px 18px 16px;}
  .sub-form{flex-direction:column;}
  .sub-form input,.sub-form button{width:100%;}
}