/* roulang page: index */
:root{
  --primary:#6E3B4A;
  --primary-deep:#552B37;
  --accent:#D98B7A;
  --bg:#FBF7F4;
  --surface:#F3EAE4;
  --ink:#2B2224;
  --muted:#6B5D5E;
  --line:#E7DCD6;
  --danger:#A8453C;
  --white:#ffffff;
  --radius-lg:22px;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 6px 20px rgba(110,59,74,.07);
  --shadow-hover:0 14px 34px rgba(110,59,74,.14);
  --font-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --ease:200ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;font-family:var(--font-sans);font-size:16px;line-height:1.8;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;}
h1,h2,h3,h4,h5{font-family:var(--font-serif);font-weight:600;line-height:1.4;margin:0;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;}
figure{margin:0;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid rgba(217,139,122,.65);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;z-index:200;}
.skip-link:focus{left:0;}

/* 顶部合规提示 */
.topbar{background:var(--primary);color:#F4E3DE;font-size:13px;letter-spacing:.2px;}
.topbar .container{display:flex;justify-content:center;align-items:center;gap:8px;padding:9px 24px;text-align:center;}
.topbar .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:0 0 6px;}

/* 站点头部 */
.site-header{position:sticky;top:0;z-index:80;background:rgba(251,247,244,.94);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(110,59,74,.09);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--primary);color:#fff;display:grid;place-items:center;font-family:var(--font-serif);font-size:19px;font-weight:700;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-family:var(--font-serif);font-size:17px;font-weight:700;color:var(--primary);letter-spacing:.5px;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.4px;}
.nav-menu{display:flex;align-items:center;gap:4px;list-style:none;}
.nav-item{position:relative;}
.nav-link{display:inline-flex;align-items:center;gap:6px;padding:9px 14px;border-radius:999px;font-size:15px;color:var(--ink);transition:background var(--ease),color var(--ease);}
.nav-link:hover{background:var(--surface);color:var(--primary);}
.nav-link.is-active{background:var(--surface);color:var(--primary);font-weight:600;}
.caret{width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid currentColor;opacity:.55;}
.dropdown{position:absolute;top:calc(100% + 10px);left:0;min-width:196px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:8px;list-style:none;opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .2s ease,transform .2s ease,visibility .2s ease;}
.nav-item:hover .dropdown,.nav-item:focus-within .dropdown{opacity:1;visibility:visible;transform:translateY(0);}
.dropdown a{display:block;padding:9px 12px;border-radius:9px;font-size:14px;color:var(--ink);}
.dropdown a:hover{background:var(--surface);color:var(--primary);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.hamburger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;place-items:center;transition:background var(--ease);}
.hamburger:hover{background:var(--surface);}
.hamburger span{display:block;width:18px;height:2px;background:var(--primary);border-radius:2px;position:relative;}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary);border-radius:2px;}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}

/* 抽屉 */
.drawer{position:fixed;inset:0;background:var(--bg);z-index:140;display:none;flex-direction:column;padding:18px 22px 32px;overflow-y:auto;}
.drawer.is-open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:56px;}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;display:grid;place-items:center;font-size:20px;color:var(--primary);}
.drawer-menu{list-style:none;margin:18px 0 0;display:flex;flex-direction:column;}
.drawer-menu a{display:block;padding:15px 6px;font-size:17px;border-bottom:1px solid var(--line);color:var(--ink);}
.drawer-menu a.is-active{color:var(--primary);font-weight:600;}
.drawer-sub{padding-left:18px;font-size:15px;color:var(--muted);}
.drawer-foot{margin-top:auto;padding-top:24px;}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:500;letter-spacing:.3px;border:1px solid transparent;white-space:nowrap;transition:background var(--ease),color var(--ease),box-shadow var(--ease),letter-spacing var(--ease),border-color var(--ease);}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-deep);letter-spacing:1px;box-shadow:0 10px 22px rgba(110,59,74,.22);}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--surface);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}

/* 通用板块 */
.section{padding:88px 0;}
.section--alt{background:var(--surface);}
.section--tight{padding:64px 0;}
.section-head{max-width:740px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:2px;color:var(--accent);margin-bottom:14px;}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--accent);border-radius:2px;}
.section-head h2{font-size:30px;color:var(--primary);margin-bottom:14px;}
.section-head p{font-size:16px;color:var(--muted);line-height:1.85;}

/* Hero */
.hero{padding:72px 0 88px;background:linear-gradient(180deg,#FBF7F4 0%,#F7EFEA 100%);}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center;}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:var(--primary);font-weight:500;box-shadow:var(--shadow);margin-bottom:22px;}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;}
.hero h1{font-size:40px;line-height:1.38;color:var(--primary);letter-spacing:.5px;margin-bottom:22px;}
.hero-sub{font-size:17px;color:var(--muted);line-height:1.9;max-width:600px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-meta{display:flex;flex-wrap:wrap;gap:30px;margin-top:38px;padding-top:26px;border-top:1px solid var(--line);}
.hero-meta div{font-size:13px;color:var(--muted);}
.hero-meta strong{display:block;font-family:var(--font-serif);font-size:22px;color:var(--primary);line-height:1.3;margin-bottom:2px;}
.hero-visual{position:relative;}
.hero-visual img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow-hover);}
.hero-float{position:absolute;left:-26px;bottom:34px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 18px;box-shadow:var(--shadow);display:flex;align-items:center;gap:12px;}
.hero-float .pulse{width:9px;height:9px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(217,139,122,.18);flex:0 0 9px;}
.hero-float span{display:block;font-size:12.5px;color:var(--muted);}
.hero-float strong{display:block;font-size:14px;color:var(--primary);}

/* 标签横条 */
.chipbar{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0;}
.chipbar .container{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:center;}
.chip-lead{font-size:13.5px;color:var(--primary);font-weight:600;margin-right:6px;}
.chip{display:inline-flex;align-items:center;padding:8px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13.5px;color:var(--muted);transition:all var(--ease);}
.chip:hover{color:var(--primary);border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow);}

/* 网格 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}

/* 栏目卡 */
.topic-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 26px;box-shadow:var(--shadow);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);display:flex;flex-direction:column;gap:12px;height:100%;}
.topic-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#E0CFC7;}
.topic-num{font-family:var(--font-serif);font-size:13px;color:var(--accent);letter-spacing:2px;}
.topic-card h3{font-size:19px;color:var(--primary);}
.topic-card p{font-size:14.5px;color:var(--muted);line-height:1.8;flex:1;}
.topic-more{font-size:13.5px;color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.topic-more::after{content:"→";transition:transform var(--ease);}
.topic-card:hover .topic-more::after{transform:translateX(4px);}

/* 时间轴 */
.timeline{display:grid;}
.timeline-item{display:grid;grid-template-columns:64px 1fr;gap:22px;padding:24px 0;border-bottom:1px dashed var(--line);}
.timeline-item:last-child{border-bottom:0;}
.timeline-badge{width:52px;height:52px;border-radius:50%;background:#fff;border:1px solid var(--line);color:var(--primary);display:grid;place-items:center;font-family:var(--font-serif);font-size:17px;box-shadow:var(--shadow);}
.timeline-item h3{font-size:19px;color:var(--primary);margin-bottom:6px;}
.timeline-item p{font-size:15px;color:var(--muted);line-height:1.8;}

/* 场景卡 */
.scene-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform var(--ease),box-shadow var(--ease);display:flex;flex-direction:column;height:100%;}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.scene-card img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.scene-body{padding:22px;display:flex;flex-direction:column;gap:8px;flex:1;}
.scene-body h3{font-size:18px;color:var(--primary);}
.scene-body p{font-size:14.5px;color:var(--muted);line-height:1.8;}

/* 误区对照 */
.mistake-grid{display:grid;grid-template-columns:1fr 1fr;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);}
.mistake-col{padding:34px;}
.mistake-col + .mistake-col{border-left:1px solid var(--line);}
.mistake-col h3{font-size:19px;margin-bottom:6px;}
.mistake-col.bad h3{color:var(--danger);}
.mistake-col.good h3{color:var(--primary);}
.mistake-col .sub{font-size:13px;color:var(--muted);}
.mistake-col ul{list-style:none;margin-top:18px;display:grid;gap:14px;}
.mistake-col li{position:relative;padding-left:26px;font-size:15px;color:var(--muted);line-height:1.75;}
.mistake-col.bad li::before{content:"×";position:absolute;left:0;top:-1px;color:var(--danger);font-weight:700;font-size:17px;}
.mistake-col.good li::before{content:"✓";position:absolute;left:0;top:-1px;color:var(--primary);font-weight:700;font-size:15px;}

/* 资讯卡 */
.news-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform var(--ease),box-shadow var(--ease);display:flex;flex-direction:column;height:100%;}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.news-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.news-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:6px;background:var(--surface);color:var(--primary);font-size:12.5px;font-weight:500;line-height:1.6;}
.news-body h3{font-size:17px;line-height:1.55;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color var(--ease);}
.news-card:hover .news-body h3{color:var(--primary);}
.news-body p{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted);}
.news-foot .arrow{color:var(--primary);font-weight:600;}
.empty-state{grid-column:1/-1;background:#fff;border:1px dashed var(--line);border-radius:var(--radius);padding:48px 24px;text-align:center;color:var(--muted);font-size:15px;}
.list-more{display:flex;justify-content:center;margin-top:40px;}

/* 团队 */
.team-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px;text-align:center;box-shadow:var(--shadow);transition:transform var(--ease),box-shadow var(--ease);height:100%;}
.team-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.team-card img{width:96px;height:96px;border-radius:50%;object-fit:cover;margin:0 auto 16px;border:3px solid var(--surface);}
.team-card h3{font-size:18px;color:var(--primary);margin-bottom:6px;}
.team-role{font-size:13px;color:var(--accent);margin-bottom:12px;}
.team-card p{font-size:14px;color:var(--muted);line-height:1.8;}

/* 数据条 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat{padding:28px 18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);text-align:center;}
.stat strong{display:block;font-family:var(--font-serif);font-size:34px;color:var(--primary);line-height:1.2;margin-bottom:6px;}
.stat span{font-size:13.5px;color:var(--muted);line-height:1.7;}

/* 引言 */
.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);display:flex;flex-direction:column;height:100%;}
.quote-mark{font-family:var(--font-serif);font-size:44px;line-height:1;color:var(--accent);opacity:.4;}
.quote-card p{font-size:15px;color:var(--ink);line-height:1.85;margin:10px 0 20px;flex:1;}
.quote-author{font-size:13px;color:var(--muted);border-top:1px dashed var(--line);padding-top:14px;}

/* 隐私承诺 */
.privacy-item{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;transition:transform var(--ease),box-shadow var(--ease);}
.privacy-item:hover{transform:translateY(-2px);box-shadow:var(--shadow);}
.privacy-icon{width:40px;height:40px;flex:0 0 40px;border-radius:12px;background:var(--surface);color:var(--primary);display:grid;place-items:center;font-size:16px;font-weight:700;font-family:var(--font-serif);}
.privacy-item strong{display:block;font-size:15px;color:var(--primary);margin-bottom:4px;}
.privacy-item span{display:block;font-size:13.5px;color:var(--muted);line-height:1.7;}

/* 清单 */
.checklist{display:grid;grid-template-columns:1fr 1fr;gap:0 40px;list-style:none;}
.checklist li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--muted);padding:14px 0;border-bottom:1px dashed var(--line);line-height:1.7;}
.check-box{width:20px;height:20px;flex:0 0 20px;border:1.5px solid var(--accent);border-radius:6px;margin-top:3px;position:relative;background:#fff;}
.check-box::after{content:"";position:absolute;left:5px;top:1px;width:6px;height:10px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);transform:rotate(40deg);opacity:.7;}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:900px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease);}
.faq-item.is-open{border-color:#E0CFC7;box-shadow:var(--shadow);}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:20px 24px;text-align:left;font-size:16px;font-weight:500;color:var(--ink);}
.faq-q:hover{color:var(--primary);}
.faq-icon{width:24px;height:24px;flex:0 0 24px;position:relative;border-radius:50%;background:var(--surface);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary);border-radius:2px;transition:transform .25s ease;}
.faq-icon::before{width:11px;height:2px;left:6.5px;top:11px;}
.faq-icon::after{width:2px;height:11px;left:11px;top:6.5px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 24px 22px;font-size:14.5px;color:var(--muted);line-height:1.85;}
.faq-item.is-open .faq-a{max-height:340px;}

/* 表单 */
.form-wrap{display:grid;grid-template-columns:1.25fr .75fr;gap:36px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:40px;box-shadow:var(--shadow);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-content:start;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1/-1;}
.field label{font-size:13.5px;color:var(--primary);font-weight:500;}
.field input,.field select,.field textarea{width:100%;height:46px;border:1px solid var(--line);border-radius:var(--radius-sm);padding:0 14px;background:var(--bg);font-size:15px;transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(110,59,74,.1);background:#fff;}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);grid-column:1/-1;line-height:1.7;}
.consent input{width:16px;height:16px;flex:0 0 16px;margin-top:4px;accent-color:var(--primary);}
.form-note{grid-column:1/-1;font-size:12.5px;color:var(--muted);line-height:1.7;}
.form-note.is-done{color:var(--primary);font-weight:500;}
.form-side{background:var(--surface);border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;gap:16px;}
.form-side h3{font-size:19px;color:var(--primary);}
.form-side p{font-size:14px;color:var(--muted);line-height:1.8;}
.form-side ul{list-style:none;display:grid;gap:14px;}
.form-side li{position:relative;padding-left:22px;font-size:14px;color:var(--muted);line-height:1.75;}
.form-side li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;background:var(--accent);}

/* CTA 长条 */
.cta-band{background:var(--primary);border-radius:24px;padding:52px 48px;display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap;color:#fff;position:relative;overflow:hidden;}
.cta-band::after{content:"";position:absolute;right:-70px;top:-70px;width:230px;height:230px;border-radius:50%;background:rgba(217,139,122,.22);}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:10px;position:relative;z-index:1;}
.cta-band p{color:#EFD9D2;font-size:15px;max-width:560px;line-height:1.8;position:relative;z-index:1;}
.cta-band .btn{position:relative;z-index:1;}
.cta-band .btn-primary{background:#fff;color:var(--primary);}
.cta-band .btn-primary:hover{background:var(--surface);letter-spacing:1px;}

/* 页脚 */
.site-footer{background:var(--primary-deep);color:#EFDCD6;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:48px;}
.footer-brand .brand{align-items:flex-start;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:#C9AAA3;}
.footer-brand p{font-size:13.5px;color:#D8BDB5;line-height:1.85;margin-top:16px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-family:var(--font-sans);font-weight:600;letter-spacing:.5px;}
.footer-col ul{list-style:none;display:grid;gap:10px;}
.footer-col a{font-size:13.5px;color:#D8BDB5;transition:color var(--ease);}
.footer-col a:hover{color:#fff;}
.footer-col p{font-size:13.5px;color:#D8BDB5;line-height:1.85;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0;font-size:12.5px;color:#C9AAA3;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;}

/* 响应式 */
@media (max-width:1199px){
  .hero-grid{gap:40px;}
  .hero h1{font-size:36px;}
}
@media (max-width:1024px){
  .nav-menu{display:none;}
  .hamburger{display:grid;}
  .nav-cta-desktop{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:38px;}
  .hero-visual{max-width:520px;}
  .hero h1{font-size:34px;}
  .grid-3,.scene-grid,.news-grid,.team-grid,.quote-grid,.privacy-grid{grid-template-columns:repeat(2,1fr);}
  .stats{grid-template-columns:repeat(2,1fr);}
  .form-wrap{grid-template-columns:1fr;padding:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .section--tight{padding:44px 0;}
  .hero{padding:44px 0 56px;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .section-head h2{font-size:24px;}
  .section-head{margin-bottom:32px;}
  .grid-3,.grid-2,.scene-grid,.news-grid,.team-grid,.quote-grid,.privacy-grid,.stats,.form-grid,.checklist,.mistake-grid{grid-template-columns:1fr;}
  .mistake-col + .mistake-col{border-left:0;border-top:1px solid var(--line);}
  .mistake-col{padding:26px;}
  .hero-float{left:0;bottom:14px;padding:12px 14px;}
  .hero-meta{gap:22px;}
  .cta-band{padding:32px 24px;border-radius:18px;}
  .cta-band h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .timeline-item{grid-template-columns:46px 1fr;gap:16px;}
  .timeline-badge{width:42px;height:42px;font-size:15px;}
}
@media (max-width:520px){
  .hero h1{font-size:26px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .btn{width:100%;}
  .hero-tag{font-size:12px;padding:6px 13px;}
  .stat strong{font-size:28px;}
  .faq-q{padding:16px 18px;font-size:15px;}
  .faq-a p{padding:0 18px 18px;}
  .checklist{gap:0;}
}

/* roulang page: category1 */
:root{
  --primary:#6E3B4A;
  --primary-deep:#552B37;
  --accent:#D98B7A;
  --bg:#FBF7F4;
  --surface:#F3EAE4;
  --ink:#2B2224;
  --muted:#6B5D5E;
  --line:#E7DCD6;
  --danger:#A8453C;
  --white:#ffffff;
  --radius-lg:22px;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 6px 20px rgba(110,59,74,.07);
  --shadow-hover:0 14px 34px rgba(110,59,74,.14);
  --font-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --ease:200ms ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--ease);}
p{margin:0 0 14px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{font-family:var(--font-serif);font-weight:700;margin:0;line-height:1.4;color:var(--primary);}
h1{font-size:40px;}
h2{font-size:30px;}
h3{font-size:22px;}
h4{font-size:17px;}
::selection{background:rgba(217,139,122,.35);color:var(--primary-deep);}
a:focus-visible,button:focus-visible,summary:focus-visible,.filter-chip:focus-visible{
  outline:2px solid rgba(217,139,122,.55);
  outline-offset:2px;
  border-radius:8px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* 顶部合规提示 */
.topbar{background:var(--primary);color:#F4E3DE;font-size:13px;letter-spacing:.2px;}
.topbar .container{display:flex;justify-content:center;align-items:center;gap:8px;padding:9px 24px;text-align:center;}
.topbar .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:0 0 6px;}

/* 站点头部 */
.site-header{position:sticky;top:0;z-index:80;background:rgba(251,247,244,.94);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(110,59,74,.09);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--primary);color:#fff;display:grid;place-items:center;font-family:var(--font-serif);font-size:19px;font-weight:700;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-family:var(--font-serif);font-size:17px;font-weight:700;color:var(--primary);letter-spacing:.5px;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.4px;}
.nav-menu{display:flex;align-items:center;gap:4px;}
.nav-item{position:relative;}
.nav-link{display:inline-flex;align-items:center;gap:6px;padding:9px 14px;border-radius:999px;font-size:15px;color:var(--ink);transition:background var(--ease),color var(--ease);}
.nav-link:hover{background:var(--surface);color:var(--primary);}
.nav-link.is-active{background:var(--surface);color:var(--primary);font-weight:600;}
.caret{width:7px;height:7px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px);display:inline-block;}
.dropdown{
  position:absolute;top:calc(100% + 10px);left:0;min-width:190px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow);padding:8px;list-style:none;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
}
.nav-item:hover .dropdown,.nav-item:focus-within .dropdown{opacity:1;visibility:visible;transform:translateY(0);}
.dropdown a{display:block;padding:9px 12px;border-radius:9px;font-size:14px;color:var(--ink);}
.dropdown a:hover{background:var(--surface);color:var(--primary);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.hamburger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;place-items:center;transition:background var(--ease);}
.hamburger:hover{background:var(--surface);}
.hamburger span{display:block;width:18px;height:2px;background:var(--primary);border-radius:2px;position:relative;}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary);border-radius:2px;}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}

/* 移动端抽屉 */
.drawer{position:fixed;inset:0;background:var(--bg);z-index:140;display:none;flex-direction:column;padding:18px 22px 32px;overflow-y:auto;}
.drawer.is-open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:56px;}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;display:grid;place-items:center;font-size:20px;color:var(--primary);}
.drawer-menu{margin:18px 0 0;display:flex;flex-direction:column;}
.drawer-menu a{display:block;padding:15px 6px;font-size:17px;border-bottom:1px solid var(--line);color:var(--ink);}
.drawer-menu a.is-active{color:var(--primary);font-weight:600;}
.drawer-sub{padding-left:18px;font-size:15px;color:var(--muted);}
.drawer-foot{margin-top:auto;padding-top:24px;}

/* 按钮与徽章 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:500;letter-spacing:.3px;border:1px solid transparent;white-space:nowrap;transition:background var(--ease),color var(--ease),box-shadow var(--ease),letter-spacing var(--ease),border-color var(--ease);}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-deep);letter-spacing:1px;box-shadow:0 10px 22px rgba(110,59,74,.22);}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--surface);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:6px;background:rgba(217,139,122,.16);color:var(--primary-deep);font-size:13px;font-weight:600;line-height:1.6;}
.badge-soft{background:rgba(110,59,74,.08);color:var(--primary);}

/* 通用板块 */
.section{padding:88px 0;}
.section--alt{background:var(--surface);}
.section--tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:42px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:2px;color:var(--accent);margin-bottom:14px;}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--accent);border-radius:2px;}
.section-head h2{margin-bottom:14px;}
.section-head p{font-size:16px;color:var(--muted);line-height:1.85;}

/* 分类页头 */
.cat-hero{
  position:relative;
  padding:56px 0 60px;
  background:linear-gradient(180deg,#FBF7F4 0%,#F7EFEA 100%);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cat-hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(217,139,122,.20) 0%,rgba(217,139,122,0) 68%);
  pointer-events:none;
}
.cat-hero .container{position:relative;z-index:1;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px;}
.breadcrumb a{color:var(--primary);}
.breadcrumb a:hover{color:var(--accent);}
.breadcrumb .sep{color:var(--line);}
.cat-hero h1{font-size:40px;letter-spacing:.5px;margin-bottom:16px;}
.cat-hero .lede{font-size:17px;color:var(--muted);max-width:720px;line-height:1.9;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.hero-tag{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:var(--primary);font-weight:500;box-shadow:var(--shadow);}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;}

/* 分类简介卡 */
.intro-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:44px;align-items:center;}
.intro-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:38px 38px 34px;box-shadow:var(--shadow);
}
.intro-card h2{font-size:26px;margin-bottom:16px;}
.intro-card p{color:var(--muted);line-height:1.9;}
.intro-list{margin-top:22px;display:grid;gap:12px;}
.intro-list li{display:flex;gap:10px;font-size:15px;color:var(--ink);}
.intro-list li::before{content:"";flex:0 0 8px;width:8px;height:8px;border-radius:50%;background:var(--accent);margin-top:11px;}
.intro-figure{margin:0;}
.intro-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow);}
.intro-figure figcaption{font-size:13px;color:var(--muted);margin-top:12px;line-height:1.7;}

/* 筛选条 */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:16px 20px;box-shadow:var(--shadow);
}
.filter-chips{display:flex;flex-wrap:wrap;gap:10px;}
.filter-chip{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:999px;
  border:1px solid var(--line);background:var(--bg);font-size:14px;color:var(--muted);
  transition:background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.filter-chip:hover{background:var(--surface);color:var(--primary);border-color:rgba(110,59,74,.25);}
.filter-chip.is-current{background:var(--primary);color:#fff;border-color:var(--primary);box-shadow:0 8px 18px rgba(110,59,74,.18);}
.filter-note{font-size:13px;color:var(--muted);margin:0;}

/* 主题卡 */
.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.topic-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 24px;box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.topic-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(217,139,122,.5);}
.topic-num{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:12px;background:var(--surface);color:var(--primary);font-family:var(--font-serif);font-weight:700;font-size:16px;margin-bottom:16px;}
.topic-card h3{font-size:19px;margin-bottom:10px;line-height:1.5;transition:color var(--ease);}
.topic-card:hover h3{color:var(--accent);}
.topic-card p{font-size:14px;color:var(--muted);line-height:1.85;margin:0;}

/* 内容列表 */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.post-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(217,139,122,.5);}
.post-card .post-link{display:flex;flex-direction:column;height:100%;padding:26px 24px 22px;}
.post-card h3{
  font-size:19px;line-height:1.55;margin:14px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color var(--ease);
}
.post-card:hover h3{color:var(--accent);}
.post-card p{
  font-size:14px;color:var(--muted);line-height:1.85;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:20px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);}
.post-meta .arrow{color:var(--accent);font-size:16px;transition:transform var(--ease);}
.post-card:hover .post-meta .arrow{transform:translateX(4px);}
.empty{
  grid-column:1/-1;background:#fff;border:1px dashed var(--line);border-radius:var(--radius);
  padding:44px 24px;text-align:center;color:var(--muted);font-size:15px;margin:0;
}
.list-more{display:flex;justify-content:center;margin-top:44px;}

/* 标签云 */
.tag-cloud{display:flex;flex-wrap:wrap;gap:12px;}
.tag{
  display:inline-flex;align-items:center;height:40px;padding:0 18px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:14px;color:var(--primary);
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.tag:hover{background:var(--surface);border-color:rgba(110,59,74,.25);}
.tag-note{font-size:14px;color:var(--muted);margin-top:20px;}

/* FAQ */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;transition:border-color var(--ease);}
.faq-item[open]{border-color:rgba(217,139,122,.55);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;cursor:pointer;list-style:none;
  font-family:var(--font-serif);font-size:18px;font-weight:600;color:var(--primary);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 28px;width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;background:var(--surface);color:var(--primary);
  font-family:var(--font-sans);font-size:17px;line-height:1;transition:transform var(--ease),background var(--ease);
}
.faq-item[open] summary::after{content:"−";background:var(--primary);color:#fff;}
.faq-body{padding:0 24px 22px;font-size:15px;color:var(--muted);line-height:1.9;background:rgba(243,234,228,.45);}
.faq-body p{margin:0;padding-top:16px;}

/* 收口 CTA */
.back-cta{
  background:var(--primary);color:#F4E3DE;border-radius:var(--radius-lg);
  padding:52px 44px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:0 18px 40px rgba(110,59,74,.22);
}
.back-cta h2{color:#fff;font-size:28px;margin-bottom:10px;}
.back-cta p{color:rgba(255,255,255,.82);font-size:15px;margin:0;max-width:620px;line-height:1.85;}
.back-cta .cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.back-cta .btn-primary{background:#fff;color:var(--primary);}
.back-cta .btn-primary:hover{background:#F7EFEA;color:var(--primary-deep);box-shadow:0 12px 26px rgba(0,0,0,.18);}
.back-cta .btn-ghost{color:#fff;border-color:rgba(255,255,255,.6);}
.back-cta .btn-ghost:hover{background:rgba(255,255,255,.12);}

/* 页脚 */
.site-footer{background:var(--primary-deep);color:rgba(255,255,255,.78);padding:70px 0 28px;font-size:14px;line-height:1.9;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.site-footer .brand-mark{background:#fff;color:var(--primary);}
.site-footer .brand-name{color:#fff;}
.site-footer .brand-sub{color:rgba(255,255,255,.6);}
.footer-brand p{margin-top:18px;color:rgba(255,255,255,.7);font-size:13.5px;line-height:1.9;}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;font-family:var(--font-serif);}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{color:rgba(255,255,255,.75);font-size:14px;}
.footer-col a:hover{color:var(--accent);}
.footer-col p{color:rgba(255,255,255,.7);font-size:13.5px;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.16);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* 响应式 */
@media (max-width:1024px){
  .nav-link{padding:8px 10px;font-size:14px;}
  .cat-hero h1{font-size:34px;}
  h1{font-size:34px;}
  h2{font-size:26px;}
  .intro-grid{grid-template-columns:1fr;gap:30px;}
  .topic-grid{grid-template-columns:repeat(2,1fr);}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:900px){
  .nav-menu{display:none;}
  .nav-cta-desktop{display:none;}
  .hamburger{display:grid;}
  .section{padding:64px 0;}
  .section--tight{padding:52px 0;}
  .cat-hero{padding:44px 0 48px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  .cat-hero h1{font-size:30px;}
  .cat-hero .lede{font-size:15.5px;}
  .intro-card{padding:28px 22px;}
  .topic-grid{grid-template-columns:1fr;}
  .post-grid{grid-template-columns:1fr;}
  .filter-bar{flex-direction:column;align-items:flex-start;}
  .back-cta{padding:38px 26px;flex-direction:column;align-items:flex-start;}
  .back-cta h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .faq-item summary{font-size:16px;padding:18px 18px;}
  .faq-body{padding:0 18px 20px;}
}
@media (max-width:520px){
  .cat-hero h1{font-size:26px;}
  .hero-tags{gap:8px;}
  .hero-tag{font-size:12px;padding:6px 13px;}
  .btn{height:44px;padding:0 20px;font-size:14px;}
  .topbar .container{font-size:12px;}
}

/* roulang page: article */
:root{
  --primary:#6E3B4A;
  --primary-deep:#552B37;
  --accent:#D98B7A;
  --bg:#FBF7F4;
  --surface:#F3EAE4;
  --ink:#2B2224;
  --muted:#6B5D5E;
  --line:#E7DCD6;
  --danger:#A8453C;
  --white:#ffffff;
  --radius-lg:22px;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 6px 20px rgba(110,59,74,.07);
  --shadow-hover:0 14px 34px rgba(110,59,74,.14);
  --font-serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
  --font-sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --ease:200ms ease;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{margin:0;font-family:var(--font-sans);font-size:16px;line-height:1.8;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased;}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0;}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
:focus-visible{outline:2px solid rgba(217,139,122,.6);outline-offset:3px;border-radius:6px;}
/* 顶部合规条 */
.topbar{background:var(--primary);color:#F4E3DE;font-size:13px;letter-spacing:.2px;}
.topbar .container{display:flex;justify-content:center;align-items:center;gap:8px;padding:9px 24px;text-align:center;}
.topbar .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:0 0 6px;}
/* 头部 */
.site-header{position:sticky;top:0;z-index:80;background:rgba(251,247,244,.94);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(110,59,74,.09);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--primary);color:#fff;display:grid;place-items:center;font-family:var(--font-serif);font-size:19px;font-weight:700;}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-family:var(--font-serif);font-size:17px;font-weight:700;color:var(--primary);letter-spacing:.5px;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.4px;}
.nav-menu{display:flex;align-items:center;gap:4px;}
.nav-item{position:relative;}
.nav-link{display:inline-flex;align-items:center;gap:6px;padding:9px 14px;border-radius:999px;font-size:15px;color:var(--ink);transition:background var(--ease),color var(--ease);}
.nav-link:hover{background:var(--surface);color:var(--primary);}
.nav-link.is-active{background:var(--surface);color:var(--primary);font-weight:600;}
.caret{display:inline-block;width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;border-top:5px solid currentColor;opacity:.6;}
.dropdown{position:absolute;top:calc(100% + 10px);left:0;min-width:190px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:8px;opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity var(--ease),transform var(--ease),visibility var(--ease);}
.nav-item:hover .dropdown,.nav-item:focus-within .dropdown{opacity:1;visibility:visible;transform:translateY(0);}
.dropdown a{display:block;padding:9px 12px;border-radius:9px;font-size:14px;color:var(--ink);}
.dropdown a:hover{background:var(--surface);color:var(--primary);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.hamburger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;place-items:center;transition:background var(--ease);}
.hamburger:hover{background:var(--surface);}
.hamburger span{display:block;width:18px;height:2px;background:var(--primary);border-radius:2px;position:relative;}
.hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary);border-radius:2px;}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}
/* 抽屉 */
.drawer{position:fixed;inset:0;background:var(--bg);z-index:140;display:none;flex-direction:column;padding:18px 22px 32px;overflow-y:auto;}
.drawer.is-open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:56px;}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;display:grid;place-items:center;font-size:20px;color:var(--primary);}
.drawer-menu{margin:18px 0 0;display:flex;flex-direction:column;}
.drawer-menu a{display:block;padding:15px 6px;font-size:17px;border-bottom:1px solid var(--line);color:var(--ink);}
.drawer-menu a.is-active,.drawer-menu a:hover{color:var(--primary);}
.drawer-sub{padding-left:18px;font-size:15px;color:var(--muted);}
.drawer-foot{margin-top:auto;padding-top:24px;}
/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:500;letter-spacing:.3px;border:1px solid transparent;white-space:nowrap;transition:background var(--ease),color var(--ease),box-shadow var(--ease),letter-spacing var(--ease),border-color var(--ease);}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-deep);letter-spacing:1px;box-shadow:0 10px 22px rgba(110,59,74,.22);color:#fff;}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:var(--surface);color:var(--primary);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
/* 徽章 */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:6px;background:rgba(110,59,74,.08);color:var(--primary);font-size:13px;font-weight:500;letter-spacing:.3px;}
.badge-accent{background:rgba(217,139,122,.16);color:#8E4B3E;}
/* 面包屑 */
.crumb-bar{background:var(--surface);border-bottom:1px solid var(--line);padding:13px 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:#C9B8B1;}
.crumb .current{color:var(--primary);font-weight:500;}
/* 文章主体 */
.article-main{padding:52px 0 84px;}
.article-wrap{max-width:860px;margin:0 auto;}
.article-head{padding-bottom:26px;border-bottom:1px solid var(--line);}
.article-head .head-tags{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:18px;}
.article-title{font-family:var(--font-serif);font-size:40px;line-height:1.42;color:var(--primary);font-weight:700;letter-spacing:.4px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;margin-top:22px;font-size:14px;color:var(--muted);}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-item i{width:14px;height:14px;border-radius:4px;background:rgba(217,139,122,.35);display:inline-block;}
.article-lead{margin-top:20px;font-size:17px;line-height:1.9;color:var(--muted);}
/* 要点速览 */
.key-points{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px 30px;margin:34px 0 40px;box-shadow:var(--shadow);}
.key-points h2{font-family:var(--font-serif);font-size:19px;color:var(--primary);margin-bottom:14px;}
.key-points li{position:relative;padding-left:22px;margin-bottom:10px;font-size:15px;line-height:1.8;color:var(--ink);}
.key-points li:last-child{margin-bottom:0;}
.key-points li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:3px;background:var(--accent);}
/* 正文 */
.article-body{font-size:16px;line-height:1.85;color:var(--ink);}
.article-body > *{max-width:780px;}
.article-body h2{font-family:var(--font-serif);font-size:26px;line-height:1.45;color:var(--primary);margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--accent);}
.article-body h3{font-size:20px;line-height:1.5;color:var(--primary-deep);margin:30px 0 12px;}
.article-body h4{font-size:17px;color:var(--primary-deep);margin:22px 0 10px;}
.article-body p{margin:0 0 18px;}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:10px;}
.article-body li::marker{color:var(--accent);}
.article-body strong{color:var(--primary-deep);font-weight:600;}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(110,59,74,.35);}
.article-body a:hover{border-color:transparent;}
.article-body blockquote{margin:26px 0;padding:18px 24px;background:var(--surface);border-left:4px solid var(--accent);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:var(--muted);}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body figure{margin:26px 0;}
.article-body img{border-radius:12px;width:100%;height:auto;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.article-body th{background:var(--surface);color:var(--primary);font-weight:600;}
.article-empty{margin:38px 0;padding:60px 26px;text-align:center;background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius);}
.article-empty h2{font-family:var(--font-serif);font-size:24px;color:var(--primary);margin-bottom:12px;}
.article-empty p{color:var(--muted);margin-bottom:24px;}
/* 作者审核卡 */
.author-card{display:flex;gap:20px;align-items:flex-start;margin-top:48px;padding:26px 28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);}
.author-avatar{width:64px;height:64px;flex:0 0 64px;border-radius:50%;background:var(--primary);color:#fff;display:grid;place-items:center;font-family:var(--font-serif);font-size:24px;font-weight:700;}
.author-body h3{font-family:var(--font-serif);font-size:18px;color:var(--primary);margin-bottom:8px;}
.author-body p{font-size:14px;line-height:1.8;color:var(--muted);margin-bottom:10px;}
.author-body p:last-child{margin-bottom:0;}
.author-tags{display:flex;flex-wrap:wrap;gap:8px;}
/* 相关推荐 */
.related{margin-top:56px;}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;}
.related-head h2{font-family:var(--font-serif);font-size:24px;color:var(--primary);}
.related-head span{font-size:14px;color:var(--muted);}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.related-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:transform var(--ease),box-shadow var(--ease);}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.related-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--surface);}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.related-card:hover .related-thumb img{transform:scale(1.04);}
.related-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.related-body h3{font-size:17px;line-height:1.55;color:var(--ink);font-weight:600;transition:color var(--ease);}
.related-card:hover .related-body h3{color:var(--primary);}
.related-body p{font-size:14px;line-height:1.75;color:var(--muted);}
.related-more{margin-top:auto;font-size:13px;color:var(--accent);font-weight:500;}
/* 收口条 */
.back-strip{margin-top:56px;padding:34px 32px;background:var(--primary);border-radius:var(--radius-lg);display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.back-strip h2{font-family:var(--font-serif);font-size:22px;color:#fff;margin-bottom:8px;}
.back-strip p{font-size:14px;color:rgba(255,255,255,.82);line-height:1.8;max-width:560px;}
.back-strip .btn{background:#fff;color:var(--primary);}
.back-strip .btn:hover{background:var(--surface);letter-spacing:1px;}
.disclaimer{margin-top:26px;font-size:13px;line-height:1.9;color:var(--muted);padding:16px 20px;background:var(--surface);border-radius:var(--radius-sm);border:1px solid var(--line);}
/* 页脚 */
.site-footer{background:var(--primary-deep);color:rgba(255,255,255,.86);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.16);color:#fff;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.6);}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);}
.footer-col h4{font-family:var(--font-serif);font-size:16px;color:#fff;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.75);}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:4px;}
.footer-col p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.72);}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.62);}
/* 响应式 */
@media (max-width:1200px){
  .nav-link{padding:9px 11px;font-size:14px;}
}
@media (max-width:992px){
  .nav-menu{display:none;}
  .nav-cta-desktop{display:none;}
  .hamburger{display:grid;}
  .article-title{font-size:34px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .topbar .container{font-size:12px;line-height:1.7;}
  .nav-wrap{height:66px;}
  .brand-sub{display:none;}
  .article-main{padding:34px 0 64px;}
  .article-title{font-size:28px;line-height:1.45;}
  .article-lead{font-size:16px;}
  .article-meta{font-size:13px;gap:8px 14px;}
  .key-points{padding:22px 20px;margin:26px 0 32px;}
  .article-body h2{font-size:22px;margin:32px 0 14px;}
  .article-body h3{font-size:18px;}
  .author-card{flex-direction:column;gap:14px;padding:22px 20px;}
  .related-grid{grid-template-columns:1fr;}
  .back-strip{padding:26px 22px;}
  .back-strip h2{font-size:19px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:34px;}
  .site-footer{padding-top:46px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .article-title{font-size:24px;}
  .article-body{font-size:15.5px;}
  .btn{height:44px;padding:0 20px;font-size:14px;}
  .related-head{flex-direction:column;align-items:flex-start;gap:6px;}
}