/* roulang page: index */
:root{
  --brand:#2A5C52;
  --brand-deep:#1C4038;
  --brand-soft:#3E7A6E;
  --brand-tint:#E3EDE9;
  --accent:#D4682F;
  --accent-soft:#F6E4D7;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-alt:#EDE8DE;
  --text:#1A2422;
  --text-sub:#5A6A66;
  --text-muted:#8A9691;
  --line:#E2DCD0;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --sh-sm:0 8px 24px rgba(26,36,34,.06);
  --sh-md:0 16px 40px rgba(26,36,34,.10);
  --grad-brand:linear-gradient(135deg,#2A5C52 0%,#3E8E7C 55%,#6FB3A2 100%);
  --grad-cta:linear-gradient(135deg,#D4682F 0%,#E8884A 100%);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand)}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding-left:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(42,92,82,.35);outline-offset:3px;border-radius:6px}
.container{max-width:1200px;padding-left:20px;padding-right:20px}
@media(min-width:1400px){.container{max-width:1280px}}
.num{font-variant-numeric:tabular-nums}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--brand-deep);color:#DCE9E4;font-size:13px;line-height:38px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px}
.topbar-domain{letter-spacing:.04em;opacity:.85}
.topbar-note{flex:1;text-align:center;color:#BFD6CE}
.topbar-actions{display:flex;align-items:center;gap:16px}
.topbar-link{color:#DCE9E4}
.topbar-link:hover{color:#fff}
.topbar-btn{display:inline-flex;align-items:center;height:26px;padding:0 14px;border-radius:999px;background:var(--accent);color:#fff;font-size:12px;font-weight:600;line-height:1}
.topbar-btn:hover{background:#E8884A;color:#fff}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(8px)}
.nav-inner{display:flex;align-items:center;gap:24px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{width:44px;height:44px;border-radius:14px;background:var(--grad-brand);color:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;letter-spacing:0;box-shadow:0 6px 16px rgba(42,92,82,.24)}
.brand-text{line-height:1.15}
.brand-name{display:block;font-size:17px;font-weight:700;letter-spacing:.02em;color:var(--text)}
.brand-sub{display:block;font-size:12px;color:var(--text-muted);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{display:inline-flex;align-items:center;min-height:44px;padding:0 14px;border-radius:999px;font-size:15px;color:var(--text-sub);font-weight:500}
.nav-link:hover{color:var(--brand);background:var(--brand-tint)}
.nav-link.active{color:var(--brand-deep);background:var(--brand-tint);font-weight:600}
.nav-cta{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 24px;border-radius:999px;background:var(--grad-cta);color:#fff;font-size:15px;font-weight:600;box-shadow:0 8px 20px rgba(212,104,47,.22);transition:all .22s ease;margin-left:6px}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(212,104,47,.3);color:#fff}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:12px;color:var(--brand);font-size:18px;align-items:center;justify-content:center;margin-left:auto}
.mobile-panel{display:none;border-top:1px solid var(--line);background:#fff;padding:16px 20px 24px}
.mobile-panel a{display:block;padding:12px 4px;font-size:15px;color:var(--text-sub);border-bottom:1px dashed var(--line)}
.mobile-panel a:last-of-type{border-bottom:none}
.mobile-panel .mobile-cta{display:flex;justify-content:center;align-items:center;margin-top:16px;min-height:48px;border-radius:999px;background:var(--grad-cta);color:#fff;font-weight:600;border-bottom:none}
body.nav-open .mobile-panel{display:block}

/* ============ Hero ============ */
.hero{position:relative;padding:72px 0 80px;overflow:hidden;background:
  radial-gradient(900px 420px at 12% -10%,rgba(62,142,124,.14),transparent 70%),
  radial-gradient(700px 380px at 92% 8%,rgba(212,104,47,.10),transparent 72%),
  var(--bg);}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140' viewBox='0 0 140 140'%3E%3Cg fill='none' stroke='%232A5C52' stroke-width='1.2'%3E%3Ccircle cx='70' cy='70' r='38'/%3E%3Ccircle cx='70' cy='70' r='24'/%3E%3Cpath d='M0 70h28M112 70h28M70 0v22M70 118v22'/%3E%3C/g%3E%3C/svg%3E");}
.hero-grid{position:relative;display:grid;grid-template-columns:56% 44%;gap:48px;align-items:center}
.hero-title{font-size:clamp(30px,4.2vw,52px);line-height:1.25;font-weight:700;letter-spacing:.02em;color:var(--brand-deep)}
.hero-title .hl{color:var(--brand)}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.85;color:var(--text-sub);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 28px;border-radius:999px;font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;transition:all .22s ease}
.btn-primary{background:var(--grad-cta);color:#fff;box-shadow:0 10px 26px rgba(212,104,47,.24)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(212,104,47,.32);color:#fff}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-tint);color:var(--brand-deep);transform:translateY(-2px)}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.mini-badge{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-size:13px;color:var(--text-sub);box-shadow:var(--sh-sm)}
.mini-badge i{color:var(--accent);font-size:12px}
.hero-media{position:relative}
.hero-img{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-md);aspect-ratio:4/3}
.hero-img img{width:100%;height:100%;object-fit:cover}
.float-badge{position:absolute;right:-14px;bottom:-20px;background:rgba(255,255,255,.96);border:1px solid var(--line);border-radius:var(--r-md);padding:14px 20px;box-shadow:var(--sh-md);display:flex;align-items:center;gap:12px}
.float-badge .fb-num{font-size:28px;font-weight:700;color:var(--brand);line-height:1;font-variant-numeric:tabular-nums}
.float-badge .fb-text{font-size:12px;color:var(--text-muted);line-height:1.4}
.hero-tag{position:absolute;left:16px;top:16px;background:rgba(255,255,255,.94);border-radius:999px;padding:6px 14px;font-size:12px;color:var(--brand);font-weight:600;box-shadow:var(--sh-sm)}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section.alt{background:var(--surface-alt)}
.section-head{max-width:720px;margin-bottom:44px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.12em;color:var(--accent);text-transform:uppercase;margin-bottom:14px}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--accent);border-radius:2px}
.section-title{font-size:clamp(24px,2.6vw,34px);line-height:1.35;font-weight:700;letter-spacing:.02em;color:var(--brand-deep)}
.section-desc{margin-top:14px;font-size:15px;color:var(--text-sub);line-height:1.85}

/* ============ 功能板块（不对称栅格） ============ */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch}
.feature-main{display:grid;grid-template-columns:44% 56%;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-sm);transition:box-shadow .25s ease,transform .25s ease}
.feature-main:hover{box-shadow:var(--sh-md);transform:translateY(-3px)}
.feature-main img{width:100%;height:100%;object-fit:cover;min-height:320px}
.feature-main-body{padding:32px}
.feature-main-body h3{font-size:22px;font-weight:600;color:var(--brand-deep);letter-spacing:.02em}
.feature-main-body p{margin-top:12px;font-size:15px;color:var(--text-sub)}
.point-list{margin-top:20px;display:grid;gap:12px}
.point-list li{display:flex;gap:10px;font-size:14px;color:var(--text-sub);line-height:1.7}
.point-list i{color:var(--brand-soft);margin-top:5px;font-size:13px}
.feature-side{display:grid;gap:24px}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-sm);transition:all .25s ease}
.side-card:hover{border-color:var(--brand-tint);transform:translateY(-3px);box-shadow:var(--sh-md)}
.side-icon{width:44px;height:44px;border-radius:12px;background:var(--brand-tint);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px}
.side-card h3{font-size:18px;font-weight:600;color:var(--brand-deep)}
.side-card p{margin-top:10px;font-size:14px;color:var(--text-sub);line-height:1.8}

/* ============ 数据徽章 ============ */
.stats-bar{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-sm);display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden}
.stat-item{padding:32px 26px;position:relative;text-align:left}
.stat-item+.stat-item::before{content:"";position:absolute;left:0;top:26%;height:48%;width:1px;background:var(--line)}
.stat-num{font-size:clamp(28px,3vw,38px);font-weight:700;color:var(--brand);line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:.01em}
.stat-num small{font-size:15px;font-weight:600;margin-left:4px;color:var(--brand-soft)}
.stat-label{margin-top:10px;font-size:13px;color:var(--text-muted);line-height:1.6}

/* ============ 场景卡片 ============ */
.scene-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}
.scene-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-sm);transition:all .25s ease;display:flex;flex-direction:column}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--brand-tint)}
.scene-card img{width:100%;object-fit:cover;height:260px}
.scene-card.tall img{height:340px}
.scene-body{padding:26px 28px 30px}
.tag{display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;background:var(--brand-tint);color:var(--brand);font-size:12px;font-weight:600}
.scene-body h3{margin-top:14px;font-size:20px;font-weight:600;color:var(--brand-deep);letter-spacing:.01em}
.scene-body p{margin-top:10px;font-size:14px;color:var(--text-sub);line-height:1.8}

/* ============ 分类方案 ============ */
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.cat-card{position:relative;display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px 24px 30px;box-shadow:var(--sh-sm);transition:all .25s ease;overflow:hidden}
.cat-card:hover{transform:translateY(-6px);box-shadow:var(--sh-md);border-color:var(--brand-tint)}
.cat-index{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.14em;font-variant-numeric:tabular-nums}
.cat-card h3{margin-top:14px;font-size:18px;font-weight:600;color:var(--brand-deep);line-height:1.5}
.cat-card p{margin-top:10px;font-size:13px;color:var(--text-sub);line-height:1.75;min-height:44px}
.cat-arrow{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-size:13px;font-weight:600;color:var(--brand);transition:gap .2s ease}
.cat-card:hover .cat-arrow{gap:12px}

/* ============ 最新信息 ============ */
.filter-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.filter-tag{display:inline-flex;align-items:center;padding:7px 16px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:13px;color:var(--text-sub)}
.filter-tag.on{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{display:flex;flex-direction:column;height:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-sm);transition:all .25s ease}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--brand-tint)}
.post-card:hover .post-title{color:var(--brand)}
.post-card:hover .post-arrow{transform:translateX(4px)}
.post-title{margin-top:14px;font-size:17px;font-weight:600;line-height:1.55;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s ease}
.post-excerpt{margin-top:10px;font-size:14px;color:var(--text-sub);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{margin-top:auto;padding-top:20px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-muted)}
.post-date{font-variant-numeric:tabular-nums}
.post-arrow{color:var(--brand);transition:transform .2s ease}
.empty-state{background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-lg);padding:56px 24px;text-align:center;color:var(--text-muted);font-size:15px}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:920px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:border-color .22s ease,background .22s ease}
.faq-item.is-open{border-color:var(--brand-soft);background:#FBFDFC}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;padding:20px 24px;background:none;border:none;text-align:left;font-size:16px;font-weight:600;color:var(--brand-deep);cursor:pointer;min-height:60px}
.faq-q:hover{color:var(--brand)}
.faq-sign{flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--brand-tint);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:13px;transition:all .25s ease}
.faq-item.is-open .faq-sign{background:var(--accent);color:#fff;transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;padding:0 24px;font-size:14.5px;color:var(--text-sub);line-height:1.85;transition:max-height .3s ease,padding .3s ease}
.faq-item.is-open .faq-a{max-height:320px;padding:0 24px 22px}

/* ============ 联系 / CTA ============ */
.contact-wrap{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.contact-info h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;color:var(--brand-deep);line-height:1.4;letter-spacing:.02em}
.contact-info p{margin-top:16px;font-size:15px;color:var(--text-sub);line-height:1.85}
.contact-list{margin-top:28px;display:grid;gap:16px}
.contact-item{display:flex;align-items:flex-start;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:18px 20px;box-shadow:var(--sh-sm)}
.contact-item i{width:36px;height:36px;border-radius:10px;background:var(--brand-tint);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0}
.contact-item .ci-label{font-size:12px;color:var(--text-muted);letter-spacing:.04em}
.contact-item .ci-value{font-size:15px;color:var(--text);font-weight:600;margin-top:2px}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh-md)}
.form-card h3{font-size:19px;font-weight:600;color:var(--brand-deep)}
.form-card .form-tip{margin-top:8px;font-size:13px;color:var(--text-muted)}
.form-field{margin-top:18px}
.form-label{display:block;font-size:13px;font-weight:600;color:var(--text-sub);margin-bottom:8px}
.form-label .req{color:var(--accent);margin-left:2px}
.form-input,.form-textarea{width:100%;min-height:48px;padding:12px 16px;font-size:15px;color:var(--text);background:#FCFBF8;border:1px solid var(--line);border-radius:var(--r-sm);transition:all .2s ease;font-family:inherit}
.form-textarea{min-height:120px;resize:vertical;line-height:1.7}
.form-input:focus,.form-textarea:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(42,92,82,.12)}
.form-submit{width:100%;margin-top:22px;min-height:48px;border:none;border-radius:999px;background:var(--grad-cta);color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:all .22s ease;box-shadow:0 10px 26px rgba(212,104,47,.22)}
.form-submit:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(212,104,47,.3)}
.form-note{margin-top:14px;font-size:12px;color:var(--text-muted);line-height:1.7}
.form-feedback{margin-top:14px;font-size:13px;color:var(--brand);display:none}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:#CFDFD9;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-mark{box-shadow:none;background:rgba(255,255,255,.12);color:#fff}
.footer-brand .brand-name{color:#fff}
.footer-brand .brand-sub{color:#9EBDB4}
.footer-desc{font-size:14px;line-height:1.85;color:#B4CCC5;max-width:340px}
.footer-kw{margin-top:16px;font-size:12.5px;color:#8FB0A7;letter-spacing:.04em}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;letter-spacing:.06em;margin-bottom:18px}
.footer-col a,.footer-col li{display:block;font-size:14px;color:#B4CCC5;line-height:2.1}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#8FB0A7}

/* ============ 响应式 ============ */
@media(max-width:1199px){
  .cat-grid{grid-template-columns:repeat(2,1fr)}
  .post-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:991px){
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .topbar-note{display:none}
  .hero{padding:56px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{order:2}
  .float-badge{right:8px;bottom:-16px}
  .section{padding:64px 0}
  .feature-grid{grid-template-columns:1fr}
  .feature-main{grid-template-columns:1fr}
  .feature-main img{min-height:220px;height:220px}
  .stats-bar{grid-template-columns:repeat(2,1fr)}
  .stat-item+.stat-item::before{display:none}
  .stat-item{border-top:1px solid var(--line)}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-top:none}
  .scene-grid{grid-template-columns:1fr}
  .scene-card img,.scene-card.tall img{height:240px}
  .contact-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:575px){
  .topbar-link{display:none}
  .hero-title{font-size:30px}
  .hero-sub{font-size:15.5px}
  .btn{width:100%}
  .hero-badges{flex-direction:column;align-items:flex-start}
  .mini-badge{width:100%}
  .section{padding:52px 0}
  .cat-grid,.post-grid{grid-template-columns:1fr}
  .stats-bar{grid-template-columns:1fr}
  .stat-item+.stat-item{border-top:1px solid var(--line)}
  .feature-main-body,.form-card,.side-card{padding:22px}
  .footer-grid{grid-template-columns:1fr}
  .faq-q{font-size:15px;padding:18px}
  .faq-a{padding:0 18px}
  .faq-item.is-open .faq-a{padding:0 18px 18px}
}

/* roulang page: category1 */
:root{
  --brand:#2A5C52;
  --brand-deep:#1C4038;
  --brand-soft:#3E7A6E;
  --brand-tint:#E3EDE9;
  --accent:#D4682F;
  --accent-soft:#F6E4D7;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-alt:#EDE8DE;
  --text:#1A2422;
  --text-sub:#5A6A66;
  --text-muted:#8A9691;
  --line:#E2DCD0;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-sm:0 8px 24px rgba(26,36,34,.06);
  --shadow-md:0 16px 40px rgba(26,36,34,.10);
  --grad-brand:linear-gradient(135deg,#2A5C52 0%,#3E8E7C 55%,#6FB3A2 100%);
  --grad-cta:linear-gradient(135deg,#D4682F 0%,#E8884A 100%);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;}
a:hover{color:var(--brand-soft);}
h1,h2,h3,h4,h5{margin:0;font-weight:700;letter-spacing:.02em;color:var(--text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(42,92,82,.45);outline-offset:2px;border-radius:8px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1400px){.container{max-width:1280px;}}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--brand-deep);color:#D8E4E0;font-size:13px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:38px;}
.topbar-domain{letter-spacing:.04em;color:#BFD3CD;font-variant-numeric:tabular-nums;}
.topbar-note{color:#CFDEDA;opacity:.9;}
.topbar-links{display:flex;align-items:center;gap:16px;}
.topbar-links a{color:#D8E4E0;font-size:13px;}
.topbar-links a:hover{color:#FFFFFF;}
.topbar-btn{padding:3px 14px;border-radius:999px;background:var(--accent);color:#fff !important;font-size:12.5px;line-height:1.7;transition:background .22s ease;}
.topbar-btn:hover{background:#B9561F;}
@media (max-width:767.98px){
  .topbar-note{display:none;}
}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(160%) blur(8px);
}
.site-header.is-stuck{box-shadow:0 6px 18px rgba(26,36,34,.08);}
.header-inner{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:12px;
  background:var(--grad-brand);
  color:#fff;font-size:20px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(42,92,82,.24);
  letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-size:17px;font-weight:700;color:var(--text);letter-spacing:.06em;}
.brand-sub{font-size:11.5px;color:var(--text-muted);letter-spacing:.06em;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;
  padding:8px 14px;border-radius:999px;
  font-size:15px;color:var(--text-sub);white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:var(--brand-tint);}
.nav-link.active{color:var(--brand);font-weight:600;background:var(--brand-tint);}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:18px;height:3px;border-radius:3px;background:var(--brand);
}
.header-cta{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn-cta{background:var(--grad-cta);color:#fff;box-shadow:0 10px 22px rgba(212,104,47,.24);}
.btn-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(212,104,47,.32);background:linear-gradient(135deg,#C25C26 0%,#E07535 100%);}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 10px 22px rgba(42,92,82,.22);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(42,92,82,.28);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-tint);color:var(--brand-deep);transform:translateY(-2px);}
.btn-sm{min-height:42px;padding:0 20px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
@media (max-width:991.98px){
  .nav-toggle{display:flex;}
  .header-cta .btn-cta{display:none;}
  .nav-links{
    position:fixed;left:0;right:0;top:0;bottom:0;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:96px 24px 32px;
    background:#FFFFFF;
    transform:translateY(-8px);
    opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
    overflow-y:auto;z-index:1100;
  }
  .nav-link{padding:14px 16px;border-radius:14px;font-size:16px;background:var(--bg);}
  .nav-link.active::after{display:none;}
  .nav-link.active{background:var(--brand-tint);}
  body.nav-open .nav-links{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto;}
  body.nav-open{overflow:hidden;}
  .nav-toggle{z-index:1200;position:relative;}
  body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  body.nav-open .nav-toggle span:nth-child(2){opacity:0;}
  body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
}
@media (max-width:575.98px){
  .brand-sub{font-size:10.5px;}
  .brand-name{font-size:16px;}
}

/* ---------- 通用板块 ---------- */
.section{padding:92px 0;}
.section-sm{padding:64px 0;}
.section-alt{background:var(--surface-alt);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;
  background:var(--brand-tint);color:var(--brand);
  font-size:12.5px;font-weight:600;letter-spacing:.08em;margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}
.section-title{font-size:clamp(24px,2.6vw,34px);line-height:1.35;margin-bottom:14px;}
.section-desc{font-size:16px;color:var(--text-sub);line-height:1.85;}
@media (max-width:991.98px){.section{padding:64px 0;}.section-sm{padding:52px 0;}}
@media (max-width:575.98px){.section{padding:48px 0;}.section-sm{padding:44px 0;}.section-head{margin-bottom:30px;}}

/* ---------- 分类页 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:76px 0 84px;
  background:
    radial-gradient(900px 420px at 82% 8%,rgba(111,179,162,.20),transparent 62%),
    radial-gradient(680px 360px at 6% 92%,rgba(212,104,47,.10),transparent 60%),
    var(--bg);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120' viewBox='0 0 120 120'%3E%3Cg fill='none' stroke='%232A5C52' stroke-width='1'%3E%3Ccircle cx='60' cy='60' r='26'/%3E%3Ccircle cx='60' cy='60' r='40'/%3E%3Cpath d='M0 60h20M100 60h20M60 0v20M60 100v20'/%3E%3C/g%3E%3C/svg%3E");
  opacity:.05;pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:56% 44%;gap:48px;align-items:center;}
.hero-copy h1{font-size:clamp(30px,4.2vw,52px);line-height:1.25;margin-bottom:18px;}
.hero-copy h1 em{font-style:normal;color:var(--brand);}
.hero-lead{font-size:17px;line-height:1.85;color:var(--text-sub);max-width:540px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:14px;}
.mini-badge{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  padding:12px 18px;box-shadow:var(--shadow-sm);min-width:132px;
}
.mini-badge strong{display:block;font-size:22px;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.3;}
.mini-badge span{font-size:13px;color:var(--text-muted);}
.hero-media{position:relative;}
.hero-media img{
  width:100%;height:420px;object-fit:cover;border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);
}
.float-badge{
  position:absolute;right:-14px;bottom:26px;
  background:rgba(255,255,255,.94);border:1px solid var(--line);
  border-radius:var(--radius-md);padding:14px 18px;box-shadow:var(--shadow-md);
  display:flex;align-items:center;gap:12px;backdrop-filter:blur(6px);
}
.float-badge b{font-size:26px;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1;}
.float-badge span{font-size:12.5px;color:var(--text-sub);line-height:1.5;max-width:92px;}
.hero-tag{
  position:absolute;left:20px;top:20px;
  background:rgba(28,64,56,.82);color:#EAF3F0;
  font-size:12.5px;padding:6px 14px;border-radius:999px;letter-spacing:.06em;
}
@media (max-width:991.98px){
  .page-hero{padding:56px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-media img{height:320px;}
  .float-badge{right:12px;bottom:12px;}
}
@media (max-width:575.98px){
  .hero-copy h1{font-size:29px;}
  .hero-lead{font-size:16px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-media img{height:250px;}
  .float-badge{padding:10px 14px;}
  .float-badge b{font-size:22px;}
}

/* ---------- 两列大卡栅格 ---------- */
.card-grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.info-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px;box-shadow:var(--shadow-sm);
  display:flex;flex-direction:column;gap:14px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  position:relative;overflow:hidden;
}
.info-card::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:var(--grad-brand);opacity:0;transition:opacity .22s ease;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand-tint);}
.info-card:hover::after{opacity:1;}
.info-icon{
  width:48px;height:48px;border-radius:14px;
  background:var(--brand-tint);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;font-variant-numeric:tabular-nums;
  flex-shrink:0;
}
.info-card:hover .info-icon{background:var(--brand);color:#fff;}
.info-card h3{font-size:20px;line-height:1.5;}
.info-card p{color:var(--text-sub);font-size:15px;line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
}
.card-link .arrow{transition:transform .22s ease;}
.info-card:hover .card-link .arrow{transform:translateX(4px);}
.info-card:hover h3{color:var(--brand);}
@media (max-width:767.98px){.card-grid-2{grid-template-columns:1fr;gap:18px;}.info-card{padding:24px;}}

/* ---------- 数据徽章横条 ---------- */
.stat-band{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);padding:34px 30px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:10px;
}
.stat-item{padding:0 18px;position:relative;}
.stat-item + .stat-item::before{
  content:"";position:absolute;left:0;top:12%;height:76%;width:1px;background:var(--line);
}
.stat-item b{display:block;font-size:clamp(28px,3vw,38px);line-height:1.2;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:.01em;}
.stat-item.accent b{color:var(--accent);}
.stat-item span{display:block;font-size:13px;color:var(--text-muted);margin-top:4px;}
@media (max-width:767.98px){
  .stat-band{grid-template-columns:repeat(2,1fr);gap:26px 0;padding:26px 20px;}
  .stat-item{padding:0 14px;}
  .stat-item + .stat-item::before{display:none;}
  .stat-item:nth-child(even)::before{display:block;}
}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.step-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:26px 22px;box-shadow:var(--shadow-sm);position:relative;
  transition:transform .22s ease,box-shadow .22s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.step-num{
  font-size:34px;font-weight:700;color:var(--accent);
  font-variant-numeric:tabular-nums;line-height:1;opacity:.9;
}
.step-card h3{font-size:17px;margin:12px 0 8px;}
.step-card p{font-size:14px;color:var(--text-sub);line-height:1.8;}
@media (max-width:991.98px){.steps{grid-template-columns:repeat(2,1fr);}}
@media (max-width:575.98px){.steps{grid-template-columns:1fr;}}

/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:24px;}
.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.scene-card img{width:100%;height:180px;object-fit:cover;}
.scene-card .scene-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:8px;flex:1;}
.tag{
  display:inline-flex;align-items:center;align-self:flex-start;
  padding:3px 12px;border-radius:999px;font-size:12.5px;
  background:var(--brand-tint);color:var(--brand);font-weight:600;
}
.tag.accent{background:var(--accent-soft);color:#A94E22;}
.scene-card h3{font-size:18px;line-height:1.5;}
.scene-card p{font-size:14px;color:var(--text-sub);line-height:1.8;}
@media (max-width:991.98px){.scene-grid{grid-template-columns:1fr 1fr;}.scene-card:first-child{grid-column:1/-1;}}
@media (max-width:575.98px){.scene-grid{grid-template-columns:1fr;}.scene-card:first-child{grid-column:auto;}}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;transition:box-shadow .22s ease,border-color .22s ease,background .22s ease;
}
.faq-item[open]{background:#FBFDFC;border-color:var(--brand-tint);box-shadow:var(--shadow-sm);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16.5px;font-weight:600;color:var(--text);
  transition:color .22s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item summary .plus{
  width:30px;height:30px;border-radius:50%;flex-shrink:0;
  border:1.5px solid var(--line);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;line-height:1;transition:transform .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
}
.faq-item[open] summary .plus{transform:rotate(45deg);background:var(--brand);color:#fff;border-color:var(--brand);}
.faq-body{padding:0 24px 22px;color:var(--text-sub);font-size:15px;line-height:1.9;}

/* ---------- 转化条 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-deep);color:#EAF3F0;
  border-radius:var(--radius-lg);padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 20px 46px rgba(28,64,56,.22);
}
.cta-band::before{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(111,179,162,.40),transparent 68%);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);line-height:1.4;margin-bottom:10px;}
.cta-band p{color:#BDD3CC;font-size:15px;line-height:1.85;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex-shrink:0;position:relative;}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;transform:translateY(-2px);}
@media (max-width:991.98px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:38px 26px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:#CBDCD6;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:40px;height:40px;font-size:19px;}
.footer-brand .brand-name{color:#fff;font-size:17px;}
.footer-brand .brand-sub{color:#96B3AA;font-size:11.5px;}
.footer-desc{font-size:14px;line-height:1.9;color:#A9C2BA;margin-bottom:14px;}
.footer-kw{font-size:12.5px;color:#8AA79E;letter-spacing:.02em;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;letter-spacing:.04em;}
.footer-col a{display:block;font-size:14px;color:#B7CCC5;padding:6px 0;}
.footer-col a:hover{color:#fff;}
.footer-col ul li{font-size:14px;color:#B7CCC5;padding:6px 0;line-height:1.7;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:20px 0;font-size:13px;color:#93AFA6;
}
@media (max-width:991.98px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:575.98px){
  .site-footer{padding-top:48px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
}

/* roulang page: article */
:root{
  --brand:#2A5C52;
  --brand-deep:#1C4038;
  --brand-soft:#3E7A6E;
  --brand-tint:#E3EDE9;
  --accent:#D4682F;
  --accent-soft:#F6E4D7;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-alt:#EDE8DE;
  --text:#1A2422;
  --text-sub:#5A6A66;
  --text-muted:#8A9691;
  --line:#E2DCD0;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-1:0 8px 24px rgba(26,36,34,.06);
  --shadow-2:0 16px 40px rgba(26,36,34,.10);
  --grad-brand:linear-gradient(135deg,#2A5C52 0%,#3E8E7C 55%,#6FB3A2 100%);
  --grad-cta:linear-gradient(135deg,#D4682F 0%,#E8884A 100%);
  --container:1200px;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(42,92,82,.4);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1400px){
  .container{max-width:1280px;}
}

/* ---------- 顶部信息条 ---------- */
.topbar{
  background:var(--brand-deep);
  color:#D6E4DF;
  font-size:13px;
  height:38px;
  display:flex;
  align-items:center;
}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  height:38px;
}
.topbar-domain{
  color:#F3F7F5;
  font-weight:600;
  letter-spacing:.04em;
  font-variant-numeric:tabular-nums;
}
.topbar-domain:hover{color:#9FD0C3;}
.topbar-note{
  color:#A9C6BC;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.topbar-actions{
  display:flex;
  align-items:center;
  gap:16px;
}
.topbar-link{
  color:#D6E4DF;
  white-space:nowrap;
}
.topbar-link:hover{color:#FFFFFF;}
.topbar-btn{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 14px;
  border-radius:999px;
  background:var(--accent);
  color:#fff;
  font-size:12.5px;
  font-weight:600;
  white-space:nowrap;
  transition:background .22s ease,transform .22s ease;
}
.topbar-btn:hover{background:#BE5A28;color:#fff;transform:translateY(-1px);}
@media (max-width:767px){
  .topbar-note{display:none;}
  .topbar-actions{gap:12px;}
}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(247,245,240,.94);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{
  background:rgba(255,255,255,.97);
  box-shadow:0 6px 20px rgba(26,36,34,.08);
}
.nav-wrap{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.brand-mark{
  width:44px;
  height:44px;
  border-radius:14px;
  background:var(--grad-brand);
  color:#fff;
  font-size:20px;
  font-weight:700;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  letter-spacing:.02em;
  box-shadow:0 6px 16px rgba(42,92,82,.22);
}
.brand-text{
  display:flex;
  flex-direction:column;
  line-height:1.15;
}
.brand-name{
  font-size:17px;
  font-weight:700;
  color:var(--text);
  letter-spacing:.04em;
}
.brand-sub{
  font-size:12px;
  color:var(--text-muted);
  letter-spacing:.06em;
  margin-top:2px;
}
.brand:hover .brand-name{color:var(--brand);}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
  flex-wrap:nowrap;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 14px;
  border-radius:999px;
  font-size:15px;
  color:var(--text-sub);
  white-space:nowrap;
  transition:color .22s ease,background .22s ease;
}
.nav-link:hover{
  color:var(--brand);
  background:var(--brand-tint);
}
.nav-link.active{
  color:var(--brand);
  font-weight:600;
  background:var(--brand-tint);
}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-2px;
  transform:translateX(-50%);
  width:22px;
  height:3px;
  border-radius:3px;
  background:var(--brand);
}
.nav-right{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  text-align:center;
  min-width:44px;
}
.btn-primary{
  background:var(--grad-cta);
  color:#fff;
  box-shadow:0 8px 20px rgba(212,104,47,.26);
}
.btn-primary:hover{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 14px 30px rgba(212,104,47,.34);
  background:linear-gradient(135deg,#C25C26 0%,#DE7B3B 100%);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(212,104,47,.28);}
.btn-ghost{
  background:transparent;
  border-color:var(--brand);
  color:var(--brand);
}
.btn-ghost:hover{
  background:var(--brand-tint);
  color:var(--brand-deep);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0);background:var(--brand-tint);}
.btn-sm{height:40px;padding:0 22px;font-size:14px;}
.nav-cta{height:42px;padding:0 22px;font-size:14.5px;}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--surface);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  padding:0;
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--brand-deep);
  transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:var(--surface);
  padding:16px 20px 24px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:0 14px;
  border-radius:var(--radius-sm);
  color:var(--text-sub);
  font-size:15.5px;
  border-bottom:1px solid var(--line);
}
.mobile-drawer a:last-of-type{border-bottom:none;}
.mobile-drawer a:hover,.mobile-drawer a:active{background:var(--brand-tint);color:var(--brand);}
.mobile-drawer .btn{width:100%;margin-top:16px;}

@media (max-width:991px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
}
@media (max-width:575px){
  .nav-wrap{height:64px;gap:12px;}
  .brand-mark{width:40px;height:40px;border-radius:12px;font-size:18px;}
  .brand-name{font-size:16px;}
  .brand-sub{font-size:11px;}
}

/* ---------- 面包屑 ---------- */
.crumbbar{
  padding:22px 0 0;
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13.5px;
  color:var(--text-muted);
  margin:0;
  background:transparent;
  padding:0;
}
.breadcrumb a{color:var(--text-sub);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C9C2B4;}
.breadcrumb .current{color:var(--brand);font-weight:600;}

/* ---------- 文章头部 ---------- */
.article-hero{
  padding:26px 0 0;
}
.article-head{
  max-width:860px;
}
.kicker{
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 14px;
  border-radius:999px;
  background:var(--accent-soft);
  color:#A64F22;
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.04em;
}
.article-head h1{
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.28;
  font-weight:700;
  letter-spacing:.02em;
  margin:18px 0 0;
  color:var(--text);
  word-break:break-word;
}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px 16px;
  margin-top:20px;
  font-size:13.5px;
  color:var(--text-muted);
  font-variant-numeric:tabular-nums;
}
.article-meta .dot{
  width:4px;
  height:4px;
  border-radius:50%;
  background:#CFC8BA;
  display:inline-block;
}
.article-meta .meta-strong{color:var(--text-sub);font-weight:600;}

/* ---------- 正文布局 ---------- */
.article-section{
  padding:36px 0 88px;
}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 260px;
  gap:48px;
  align-items:start;
}
.article-main{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:40px 44px 44px;
  box-shadow:var(--shadow-1);
}
.article-content{
  max-width:800px;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
}
.article-content > *:first-child{margin-top:0;}
.article-content p{margin:0 0 18px;}
.article-content h2{
  font-size:clamp(21px,2.1vw,27px);
  line-height:1.45;
  font-weight:700;
  letter-spacing:.02em;
  margin:44px 0 16px;
  padding-left:14px;
  border-left:4px solid var(--brand);
  color:var(--text);
}
.article-content h3{
  font-size:19px;
  line-height:1.5;
  font-weight:600;
  margin:32px 0 12px;
  padding-left:12px;
  border-left:3px solid var(--brand-tint);
  color:var(--brand-deep);
}
.article-content h4{
  font-size:16.5px;
  font-weight:600;
  margin:24px 0 10px;
  color:var(--brand-deep);
}
.article-content ul,
.article-content ol{
  margin:0 0 20px;
  padding-left:22px;
}
.article-content ul{list-style:disc;}
.article-content ol{list-style:decimal;}
.article-content li{margin-bottom:9px;}
.article-content li::marker{color:var(--brand-soft);}
.article-content blockquote{
  margin:26px 0;
  padding:18px 22px;
  background:var(--brand-tint);
  border-left:4px solid var(--brand);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--text-sub);
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{
  margin:26px 0;
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-1);
  width:100%;
  object-fit:cover;
}
.article-content figure{margin:26px 0;}
.article-content figcaption{
  font-size:13px;
  color:var(--text-muted);
  text-align:center;
  margin-top:10px;
}
.article-content table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:14.5px;
  border-radius:var(--radius-sm);
  overflow:hidden;
}
.article-content th,
.article-content td{
  border:1px solid var(--line);
  padding:12px 14px;
  text-align:left;
  vertical-align:top;
}
.article-content th{
  background:var(--surface-alt);
  font-weight:600;
  color:var(--brand-deep);
}
.article-content pre{
  background:#F1EEE7;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:16px 18px;
  overflow:auto;
  font-size:13.5px;
  line-height:1.75;
  margin:22px 0;
}
.article-content code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  background:#F1EEE7;
  border-radius:5px;
  padding:2px 6px;
  font-size:13.5px;
}
.article-content pre code{background:transparent;padding:0;}
.article-content a{
  color:var(--brand);
  text-decoration:underline;
  text-underline-offset:3px;
}
.article-content a:hover{color:var(--accent);}
.article-content hr{
  border:none;
  border-top:1px solid var(--line);
  margin:34px 0;
}

/* 空态 */
.empty-state{
  text-align:center;
  padding:48px 24px 52px;
  border:1px dashed var(--line);
  border-radius:var(--radius-md);
  background:var(--surface-alt);
}
.empty-state h2{
  font-size:22px;
  font-weight:700;
  color:var(--brand-deep);
  border:none;
  padding:0;
  margin:0 0 12px;
}
.empty-state p{
  color:var(--text-sub);
  font-size:15px;
  max-width:520px;
  margin:0 auto 24px;
}

/* 侧栏目录 */
.article-aside{
  position:sticky;
  top:96px;
  align-self:start;
}
.toc{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:22px 20px;
  box-shadow:var(--shadow-1);
}
.toc-title{
  font-size:13px;
  font-weight:700;
  letter-spacing:.1em;
  color:var(--text-muted);
  margin:0 0 14px;
  padding-bottom:12px;
  border-bottom:1px solid var(--line);
}
.toc-list{
  display:flex;
  flex-direction:column;
  gap:2px;
  max-height:46vh;
  overflow-y:auto;
}
.toc-link{
  display:block;
  font-size:13.5px;
  line-height:1.6;
  color:var(--text-sub);
  padding:7px 10px;
  border-radius:8px;
  border-left:2px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.toc-link:hover{
  background:var(--brand-tint);
  color:var(--brand);
  border-left-color:var(--brand);
}
.toc-link.is-sub{
  padding-left:22px;
  font-size:12.8px;
  color:var(--text-muted);
}
.toc-back{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13.5px;
  color:var(--brand);
  font-weight:600;
  width:100%;
}
.toc-back:hover{color:var(--accent);}
.toc-back span{transition:transform .22s ease;}
.toc-back:hover span{transform:translateX(4px);}

/* ---------- 相关推荐 ---------- */
.related-section{
  padding:0 0 88px;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
  flex-wrap:wrap;
}
.section-head h2{
  font-size:clamp(22px,2.4vw,30px);
  font-weight:700;
  letter-spacing:.02em;
  color:var(--text);
  margin:0;
}
.section-head p{
  color:var(--text-sub);
  font-size:14.5px;
  margin:10px 0 0;
  max-width:620px;
}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:600;
  color:var(--brand);
}
.link-arrow span{transition:transform .22s ease;}
.link-arrow:hover{color:var(--accent);}
.link-arrow:hover span{transform:translateX(4px);}

.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.related-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  height:100%;
}
.related-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:var(--brand-tint);
}
.related-thumb{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--surface-alt);
}
.related-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.related-card:hover .related-thumb img{transform:scale(1.05);}
.related-body{
  padding:22px 24px 24px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.tag-badge{
  display:inline-flex;
  align-items:center;
  align-self:flex-start;
  height:24px;
  padding:0 11px;
  border-radius:999px;
  background:var(--brand-tint);
  color:var(--brand-deep);
  font-size:12px;
  font-weight:600;
  letter-spacing:.03em;
}
.related-body h3{
  font-size:17px;
  font-weight:700;
  line-height:1.55;
  margin:12px 0 8px;
  color:var(--text);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.related-card:hover h3{color:var(--brand);}
.related-body p{
  font-size:14px;
  color:var(--text-sub);
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin:0 0 16px;
}
.related-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-muted);
  font-variant-numeric:tabular-nums;
}
.related-foot .arrow{
  width:30px;
  height:30px;
  border-radius:50%;
  background:var(--brand-tint);
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:transform .25s ease,background .25s ease,color .25s ease;
}
.related-card:hover .related-foot .arrow{
  background:var(--brand);
  color:#fff;
  transform:translateX(4px);
}

/* ---------- 转化条 ---------- */
.cta-band{
  padding:0 0 96px;
}
.cta-inner{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  background:var(--brand-deep);
  padding:48px 52px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
}
.cta-inner::after{
  content:"";
  position:absolute;
  right:-80px;
  top:-90px;
  width:320px;
  height:320px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(111,179,162,.30),rgba(111,179,162,0) 68%);
  pointer-events:none;
}
.cta-text{
  max-width:640px;
  position:relative;
  z-index:1;
}
.cta-text h2{
  font-size:clamp(21px,2.3vw,28px);
  font-weight:700;
  color:#fff;
  margin:0 0 12px;
  letter-spacing:.02em;
}
.cta-text p{
  color:#B9D2C9;
  font-size:14.5px;
  line-height:1.85;
  margin:0;
}
.cta-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  position:relative;
  z-index:1;
}
.cta-actions .btn-ghost{
  border-color:rgba(255,255,255,.55);
  color:#fff;
}
.cta-actions .btn-ghost:hover{
  background:rgba(255,255,255,.14);
  border-color:#fff;
  color:#fff;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-deep);
  color:#C6D8D3;
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:18px;
}
.footer-brand .brand-mark{
  background:linear-gradient(135deg,#3E7A6E,#6FB3A2);
  box-shadow:none;
}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:#8FB3A9;}
.footer-desc{
  font-size:13.8px;
  line-height:1.85;
  color:#A9C6BC;
  margin:0 0 16px;
  max-width:320px;
}
.footer-kw{
  font-size:12.5px;
  color:#7FA095;
  letter-spacing:.03em;
  margin:0;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:#fff;
  margin:0 0 18px;
  letter-spacing:.06em;
}
.footer-col a{
  display:block;
  font-size:13.8px;
  color:#A9C6BC;
  padding:6px 0;
}
.footer-col a:hover{color:#7FD0BA;transform:translateX(2px);transition:transform .2s ease,color .2s ease;}
.footer-col ul li{
  font-size:13.8px;
  color:#A9C6BC;
  padding:6px 0;
  line-height:1.7;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12.8px;
  color:#8FB3A9;
  font-variant-numeric:tabular-nums;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 240px;gap:32px;}
  .article-main{padding:34px 32px 38px;}
}
@media (max-width:991px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px;}
  .article-aside{display:none;}
  .article-main{padding:30px 26px 34px;border-radius:20px;}
  .article-content{max-width:none;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{padding:38px 32px;}
  .related-section{padding-bottom:64px;}
  .article-section{padding-bottom:64px;}
  .cta-band{padding-bottom:72px;}
}
@media (max-width:575px){
  .article-head h1{font-size:26px;margin-top:14px;}
  .article-main{padding:24px 18px 28px;border-radius:16px;}
  .article-content{font-size:15.5px;line-height:1.85;}
  .article-content h2{font-size:20px;margin-top:34px;}
  .article-content h3{font-size:17.5px;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .cta-inner{padding:30px 22px;border-radius:20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .crumbbar{padding-top:16px;}
}

/* roulang page: category2 */
:root{
  --brand:#2A5C52;
  --brand-deep:#1C4038;
  --brand-soft:#3E7A6E;
  --brand-tint:#E3EDE9;
  --accent:#D4682F;
  --accent-soft:#F6E4D7;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --surface-alt:#EDE8DE;
  --text:#1A2422;
  --text-sub:#5A6A66;
  --text-muted:#8A9691;
  --line:#E2DCD0;
  --grad-brand:linear-gradient(135deg,#2A5C52 0%,#3E8E7C 55%,#6FB3A2 100%);
  --grad-cta:linear-gradient(135deg,#D4682F 0%,#E8884A 100%);
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 8px 24px rgba(26,36,34,.06);
  --sh-2:0 16px 40px rgba(26,36,34,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;letter-spacing:.02em}
p{margin:0}
::selection{background:var(--brand-tint);color:var(--brand-deep)}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (min-width:1200px){ .container{max-width:1200px} }
@media (min-width:1400px){ .container{max-width:1280px} }

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--brand-deep);color:#DCE9E4;font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:38px}
.topbar-domain{letter-spacing:.06em;color:#BFD6CE;font-variant-numeric:tabular-nums}
.topbar-note{color:#9FBFB4;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-actions{display:flex;align-items:center;gap:16px;flex-shrink:0}
.topbar-link{color:#DCE9E4;transition:color .2s ease}
.topbar-link:hover{color:#fff}
.topbar-btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:26px;padding:2px 14px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.26);
  color:#fff;font-size:12px;transition:background .2s ease;
}
.topbar-btn:hover{background:rgba(255,255,255,.24);color:#fff}
@media (max-width:767px){
  .topbar-note{display:none}
  .topbar-link{display:none}
}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:44px;height:44px;border-radius:14px;
  background:var(--grad-brand);color:#fff;
  display:grid;place-items:center;
  font-size:20px;font-weight:700;letter-spacing:0;
  box-shadow:0 6px 16px rgba(42,92,82,.24);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:18px;font-weight:700;letter-spacing:.02em;color:var(--text)}
.brand-sub{font-size:12px;color:var(--text-muted);letter-spacing:.04em}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 14px;border-radius:10px;
  font-size:15px;color:var(--text-sub);
  transition:color .22s ease,background .22s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-tint)}
.nav-link.active{color:var(--brand);font-weight:600;background:var(--brand-tint)}
.header-cta{margin-left:8px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;margin-left:auto;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 移动端抽屉 */
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(26,36,34,.45);
  opacity:0;pointer-events:none;transition:opacity .28s ease;z-index:1100;
}
.drawer-backdrop.open{opacity:1;pointer-events:auto}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);
  background:#fff;padding:22px;z-index:1200;
  transform:translateX(102%);transition:transform .28s ease;
  box-shadow:-12px 0 40px rgba(26,36,34,.18);
  display:flex;flex-direction:column;gap:8px;
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:8px}
.drawer-close{
  margin-left:auto;width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);background:#fff;font-size:20px;line-height:1;cursor:pointer;color:var(--text-sub);
}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  padding:13px 14px;border-radius:12px;font-size:15px;color:var(--text-sub);
  transition:background .2s ease,color .2s ease;
}
.drawer-nav a:hover,.drawer-nav a:focus-visible{background:var(--brand-tint);color:var(--brand)}
.drawer-nav a.active{background:var(--brand-tint);color:var(--brand);font-weight:600}
.drawer-cta{margin-top:14px;width:100%}
@media (min-width:992px){
  .mobile-drawer,.drawer-backdrop,.nav-toggle{display:none !important}
}
@media (max-width:991px){
  .nav-links,.header-cta{display:none}
  .nav-toggle{display:flex}
  .header-inner{min-height:64px;gap:12px}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 28px;border-radius:999px;
  font-size:15px;font-weight:600;border:1.5px solid transparent;
  cursor:pointer;text-align:center;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--grad-cta);color:#fff;box-shadow:0 10px 22px rgba(212,104,47,.24)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(212,104,47,.32);color:#fff}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-tint);transform:translateY(-2px);color:var(--brand)}
.btn-light{background:#fff;color:var(--brand-deep);box-shadow:0 10px 24px rgba(0,0,0,.14)}
.btn-light:hover{transform:translateY(-2px);color:var(--brand-deep)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.7);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;transform:translateY(-2px)}
.btn:focus-visible,
.nav-link:focus-visible,
.drawer-nav a:focus-visible,
a:focus-visible,
button:focus-visible,
summary:focus-visible{
  outline:3px solid rgba(42,92,82,.35);
  outline-offset:2px;
}

/* ---------- 首屏 ---------- */
.page-hero{position:relative;overflow:hidden;padding:76px 0 68px;background:var(--bg)}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.08;pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(680px 320px at 18% 0%,rgba(62,142,124,.16),transparent 70%),
    radial-gradient(560px 300px at 88% 12%,rgba(212,104,47,.12),transparent 72%);
  pointer-events:none;
}
.hero-narrow{position:relative;z-index:2;max-width:720px;margin:0 auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 16px;border-radius:999px;
  background:var(--brand-tint);color:var(--brand);
  font-size:13px;font-weight:600;letter-spacing:.04em;margin-bottom:20px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.hero-narrow h1{
  font-size:clamp(28px,4.2vw,46px);line-height:1.28;font-weight:700;
  margin:0 0 18px;color:var(--brand-deep);
}
.hero-desc{
  font-size:16px;line-height:1.85;color:var(--text-sub);
  max-width:640px;margin:0 auto 30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.hero-meta{
  display:flex;flex-wrap:wrap;justify-content:center;gap:10px 26px;
  margin-top:30px;font-size:13px;color:var(--text-muted);
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--brand-soft);opacity:.7}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-alt{background:var(--surface-alt)}
.section-head{max-width:720px;margin:0 0 44px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.35;font-weight:700;margin:0 0 14px;color:var(--brand-deep)}
.section-head p{color:var(--text-sub);font-size:15px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
@media (max-width:991px){ .section{padding:64px 0} .section-tight{padding:48px 0} }
@media (max-width:575px){ .section{padding:48px 0} .section-head{margin-bottom:30px} }

/* 提示横条 */
.notice-bar{
  display:grid;grid-template-columns:auto 1fr auto;gap:20px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--brand);
  border-radius:var(--r-md);padding:22px 26px;box-shadow:var(--sh-1);margin-bottom:36px;
}
.notice-icon{
  width:42px;height:42px;border-radius:12px;background:var(--brand-tint);
  display:grid;place-items:center;color:var(--brand);font-weight:700;font-size:18px;
}
.notice-bar p{font-size:15px;color:var(--text-sub);margin:0}
.notice-bar strong{color:var(--text);font-weight:600}
.notice-link{
  white-space:nowrap;font-size:14px;font-weight:600;color:var(--brand);
  display:inline-flex;align-items:center;gap:6px;transition:gap .22s ease;
}
.notice-link:hover{gap:11px;color:var(--brand-deep)}
@media (max-width:767px){
  .notice-bar{grid-template-columns:auto 1fr;gap:14px;padding:18px 20px}
  .notice-link{grid-column:1 / -1}
}

/* ---------- 编号横向列表（分类页2 主版式） ---------- */
.step-list{display:flex;flex-direction:column;gap:20px}
.step-item{
  display:grid;grid-template-columns:96px minmax(0,1fr) auto;
  gap:28px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 32px;box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.step-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-tint)}
.step-num{
  font-size:46px;font-weight:700;line-height:1;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.step-body h3{font-size:20px;font-weight:600;line-height:1.5;margin:0 0 8px;color:var(--text)}
.step-item:hover .step-body h3{color:var(--brand)}
.step-body p{
  font-size:15px;line-height:1.8;color:var(--text-sub);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.step-link{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  min-height:44px;padding:0 22px;border-radius:999px;
  border:1.5px solid var(--brand);color:var(--brand);
  font-size:14px;font-weight:600;white-space:nowrap;
  transition:background .22s ease,color .22s ease,gap .22s ease;
}
.step-link:hover{background:var(--brand);color:#fff;gap:10px}
@media (max-width:991px){
  .step-item{grid-template-columns:72px minmax(0,1fr);gap:18px;padding:24px}
  .step-num{font-size:36px}
  .step-link{grid-column:1 / -1;justify-self:start}
}
@media (max-width:575px){
  .step-item{grid-template-columns:1fr;gap:12px;padding:22px 20px}
  .step-num{font-size:32px}
  .step-body h3{font-size:18px}
  .step-link{width:100%}
}

/* ---------- 数据徽章横条 ---------- */
.stats-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;
}
.stat{padding:30px 22px;text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:none}
.stat-num{
  display:block;font-size:34px;font-weight:700;line-height:1.15;
  color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.stat:first-child .stat-num{color:var(--accent)}
.stat-label{display:block;font-size:13px;color:var(--text-muted);margin-top:8px}
@media (max-width:767px){
  .stats-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat{padding:24px 16px;border-bottom:1px solid var(--line)}
  .stat:nth-child(2n){border-right:none}
  .stat:nth-last-child(-n+2){border-bottom:none}
  .stat-num{font-size:28px}
}

/* ---------- 关联卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.info-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-tint)}
.card-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--surface-alt)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.info-card:hover .card-media img{transform:scale(1.05)}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-tag{
  align-self:flex-start;padding:4px 12px;border-radius:999px;
  background:var(--brand-tint);color:var(--brand);font-size:12px;font-weight:600;
}
.card-body h3{font-size:18px;font-weight:600;line-height:1.5;margin:0}
.info-card:hover .card-body h3{color:var(--brand)}
.card-body p{
  font-size:14px;line-height:1.8;color:var(--text-sub);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-arrow{
  margin-top:auto;padding-top:10px;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);transition:gap .22s ease;
}
.info-card:hover .card-arrow{gap:11px}
.back-home{
  margin-top:32px;display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--brand);transition:gap .22s ease;
}
.back-home:hover{gap:13px;color:var(--brand-deep)}
@media (max-width:991px){ .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))} }
@media (max-width:575px){ .card-grid{grid-template-columns:1fr} }

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:880px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;transition:border-color .22s ease,background .22s ease;
}
.faq-item[open]{border-color:var(--brand-tint);background:#F3F8F6}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--text);
  transition:color .22s ease;
}
.faq-q::-webkit-details-marker{display:none}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  flex-shrink:0;width:28px;height:28px;border-radius:50%;
  background:var(--brand-tint);color:var(--brand);
  display:grid;place-items:center;font-size:16px;line-height:1;font-weight:700;
  transition:background .22s ease,color .22s ease,transform .22s ease;
}
.faq-item[open] .faq-icon{background:var(--brand);color:#fff;transform:rotate(180deg)}
.faq-a{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--text-sub)}
@media (max-width:575px){
  .faq-q{padding:18px 18px;font-size:15px;gap:12px}
  .faq-a{padding:0 18px 18px}
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;
  background:var(--grad-brand);color:#fff;
  border-radius:28px;padding:52px;box-shadow:0 20px 46px rgba(28,64,56,.24);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;bottom:-80px;width:280px;height:280px;
  border-radius:50%;background:rgba(255,255,255,.10);pointer-events:none;
}
.cta-band h2{font-size:clamp(24px,2.6vw,32px);line-height:1.4;margin:0 0 14px;color:#fff}
.cta-band p{font-size:15px;line-height:1.85;color:rgba(255,255,255,.86);margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.cta-box{
  position:relative;z-index:2;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.24);border-radius:var(--r-md);
  padding:24px;backdrop-filter:blur(2px);
}
.cta-box h3{font-size:16px;margin:0 0 14px;color:#fff;font-weight:600}
.cta-box ul{display:flex;flex-direction:column;gap:10px}
.cta-box li{font-size:14px;color:rgba(255,255,255,.9);position:relative;padding-left:16px;line-height:1.7}
.cta-box li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.7)}
@media (max-width:991px){
  .cta-band{grid-template-columns:1fr;padding:36px 26px;gap:28px}
}
@media (max-width:575px){
  .cta-band{padding:30px 22px;border-radius:20px}
  .cta-actions .btn{width:100%}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:#C9DCD6;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.15fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.site-footer .brand-mark{box-shadow:0 6px 18px rgba(0,0,0,.22)}
.site-footer .brand-name{color:#fff}
.site-footer .brand-sub{color:#8FB0A7}
.footer-desc{font-size:14px;line-height:1.85;color:#A9C4BC;margin:0 0 14px}
.footer-kw{font-size:13px;color:#8FB0A7;margin:0;letter-spacing:.02em}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin:0 0 16px;letter-spacing:.04em}
.footer-col a{
  display:block;font-size:14px;color:#BFD6CE;padding:6px 0;
  transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:#fff;transform:translateX(3px)}
.footer-col ul{font-size:14px;color:#BFD6CE}
.footer-col ul li{padding:6px 0;line-height:1.7}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;
  padding:20px 0;font-size:13px;color:#9FBFB4;
}
@media (max-width:991px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:575px){
  .site-footer{padding-top:48px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}