/* roulang page: index */
:root{
  --brand-900:#0F3D33;
  --brand-700:#14513F;
  --brand-500:#1F7A4D;
  --brand-950:#08241E;
  --accent:#FF6A2B;
  --lime:#CDF24A;
  --sand:#F7F6F1;
  --white:#FFFFFF;
  --ink:#141A18;
  --ink-2:#4A5751;
  --ink-3:#8A938E;
  --line:#E2E0D6;
  --line-soft:#EDEBE3;
  --danger:#C0392B;
  --radius-big:16px;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-card:0 1px 2px rgba(15,61,51,.06), 0 10px 28px -18px rgba(15,61,51,.35);
  --shadow-float:0 8px 20px -8px rgba(15,61,51,.28);
  --space-section:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"Noto Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--sand);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- top bar ---------- */
.topbar{background:var(--brand-950);color:rgba(247,246,241,.88);font-size:13px;line-height:1.6}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:38px;gap:16px}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:12px;min-width:0}
.topbar-domain{font-weight:600;letter-spacing:.02em;color:var(--lime)}
.topbar-hint{color:rgba(247,246,241,.7);white-space:nowrap}
.topbar-sep{width:1px;height:14px;background:rgba(247,246,241,.28);display:inline-block}
.topbar-link{color:rgba(247,246,241,.88);transition:color .18s ease-out}
.topbar-link:hover{color:var(--lime)}

/* ---------- nav ---------- */
.mainnav{position:sticky;top:0;z-index:70;background:rgba(255,255,255,.97);border-bottom:1px solid var(--line-soft);transition:box-shadow .2s ease-out}
.mainnav.is-stuck{box-shadow:var(--shadow-card)}
.mainnav-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;color:var(--brand-900);font-size:19px;letter-spacing:-.02em;white-space:nowrap}
.logo-mark{width:10px;height:10px;background:var(--accent);border-radius:2px;flex:none}
.nav-list{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:500;color:var(--ink-2);transition:color .18s ease-out}
.nav-link::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:3px;background:var(--accent);border-radius:2px;transition:width .2s ease-out}
.nav-link:hover{color:var(--brand-900)}
.nav-link:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:4px}
.nav-link.is-active{color:var(--brand-900);font-weight:600}
.nav-link.is-active::after{width:24px}
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;transition:transform .2s ease-out,opacity .2s}
.nav-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px}

/* drawer */
.drawer-mask{position:fixed;inset:0;background:rgba(8,36,30,.45);opacity:0;visibility:hidden;transition:opacity .22s ease-out,visibility .22s;z-index:90}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;left:0;bottom:0;width:280px;max-width:84vw;background:#fff;z-index:100;transform:translateX(-102%);transition:transform .26s ease-out;display:flex;flex-direction:column;box-shadow:var(--shadow-float)}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line-soft)}
.drawer-title{font-weight:800;color:var(--brand-900);font-size:17px}
.drawer-close{width:36px;height:36px;border:1px solid var(--line);background:#fff;border-radius:9px;cursor:pointer;font-size:18px;line-height:1;color:var(--ink-2)}
.drawer-close:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.drawer-nav{padding:8px 0;overflow-y:auto}
.drawer-nav a{display:block;padding:15px 20px;font-size:15px;color:var(--ink-2);border-bottom:1px solid var(--line-soft)}
.drawer-nav a:hover{background:#F4F7F4;color:var(--brand-900)}
.drawer-nav a.is-active{color:var(--brand-900);font-weight:600;box-shadow:inset 3px 0 0 var(--accent)}
.drawer-foot{margin-top:auto;padding:18px 20px;border-top:1px solid var(--line-soft);font-size:13px;color:var(--ink-3)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;cursor:pointer;transition:background-color .18s ease-out,color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;white-space:nowrap}
.btn-primary{background:var(--brand-900);color:var(--sand)}
.btn-primary:hover{background:var(--brand-700);box-shadow:var(--shadow-float)}
.btn-primary:active{background:var(--brand-950);transform:translateY(1px)}
.btn-outline{background:transparent;border-color:var(--brand-900);color:var(--brand-900)}
.btn-outline:hover{background:var(--brand-900);color:var(--sand)}
.btn-outline:active{transform:translateY(1px)}
.btn-accent{background:var(--accent);color:var(--brand-900)}
.btn-accent:hover{background:#FF7E45;transform:translateY(-1px);box-shadow:var(--shadow-float)}
.btn-accent:active{transform:translateY(1px)}
.btn-onDark{background:var(--sand);color:var(--brand-900)}
.btn-onDark:hover{background:var(--lime)}
.btn-onDark:active{transform:translateY(1px)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand-900);border-bottom:2px solid var(--brand-900);padding-bottom:2px;transition:color .18s,border-color .18s}
.link-arrow:hover{color:var(--accent);border-color:var(--accent)}
.link-arrow span{transition:transform .18s ease-out}
.link-arrow:hover span{transform:translateX(4px)}

/* ---------- generic section ---------- */
.section{padding:var(--space-section) 0}
.section-tight{padding:64px 0}
.section-dark{background:var(--brand-900);color:var(--sand)}
.section-head{display:flex;align-items:flex-start;gap:18px;margin-bottom:44px}
.section-index{font-variant-numeric:tabular-nums;font-size:14px;font-weight:700;color:var(--accent);letter-spacing:.08em;padding-top:8px}
.section-head-text{flex:1;min-width:0}
.section-head h2{font-size:32px;line-height:1.3}
.section-sub{margin-top:12px;font-size:16px;color:var(--ink-2);max-width:720px}
.section-dark .section-sub{color:rgba(247,246,241,.75)}
.rule-scale{height:2px;background-image:repeating-linear-gradient(90deg,var(--brand-900) 0 8px,transparent 8px 24px);opacity:.35}

/* ---------- hero ---------- */
.hero{position:relative;background:linear-gradient(135deg,#0F3D33 0%,#08241E 100%);color:var(--sand);overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.18}
.hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background-image:repeating-linear-gradient(90deg,rgba(205,242,74,.6) 0 8px,transparent 8px 24px)}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;padding:84px 0 92px;min-height:540px}
.hero-tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--lime);border:1px solid rgba(205,242,74,.5);padding:5px 12px;border-radius:999px;margin-bottom:22px}
.hero h1{font-size:46px;line-height:1.25;font-weight:800;color:#fff;letter-spacing:-.02em}
.hero-sub{margin-top:20px;font-size:18px;line-height:1.75;color:rgba(247,246,241,.82);max-width:560px}
.hero-actions{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);margin-top:44px;border-top:1px solid rgba(247,246,241,.2);padding-top:26px}
.hero-stat{padding-right:18px;border-right:1px solid rgba(247,246,241,.18)}
.hero-stat:last-child{border-right:none}
.hero-stat b{display:block;font-size:28px;font-weight:800;color:var(--lime);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-stat span{display:block;font-size:13px;color:rgba(247,246,241,.72);margin-top:6px}
.hero-media{position:relative}
.hero-media img{width:100%;height:380px;object-fit:cover;border-radius:var(--radius-big);box-shadow:0 24px 48px -24px rgba(0,0,0,.55)}
.hero-media::after{content:"";position:absolute;right:-14px;bottom:-14px;width:88px;height:88px;background:var(--lime);border-radius:14px;opacity:.9;z-index:-1}
.hero-media-badge{position:absolute;left:18px;bottom:18px;background:rgba(8,36,30,.78);color:var(--sand);font-size:13px;padding:8px 14px;border-radius:999px;border:1px solid rgba(205,242,74,.45)}

/* ---------- value ---------- */
.value-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.value-left h2{font-size:34px;line-height:1.3}
.value-left p{margin-top:18px;color:var(--ink-2);font-size:16px}
.value-list{margin-top:26px;display:flex;flex-direction:column;gap:14px}
.value-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2)}
.value-list li i{flex:none;width:8px;height:8px;background:var(--accent);border-radius:2px;margin-top:11px}
.value-stack{display:flex;flex-direction:column;gap:20px}
.value-cards{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.value-cards.shift{transform:translateX(40px)}
.value-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-card);transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out}
.value-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-float);border-color:rgba(15,61,51,.4)}
.value-card h3{font-size:19px;line-height:1.4}
.value-card .tagline{display:inline-block;font-size:12px;font-weight:600;color:var(--brand-900);background:rgba(205,242,74,.5);padding:3px 10px;border-radius:999px;margin-bottom:12px}
.value-card p{margin-top:10px;font-size:14.5px;color:var(--ink-2);line-height:1.8}
.value-metric{margin-top:16px;font-size:13px;color:var(--ink-3);display:flex;gap:16px;border-top:1px solid var(--line-soft);padding-top:12px}
.value-metric b{color:var(--brand-900);font-variant-numeric:tabular-nums}

/* ---------- features ---------- */
.feature-grid{display:grid;grid-template-columns:200px 1fr;gap:44px}
.feature-index{border-right:1px solid var(--line);padding-right:24px}
.feature-index li{display:flex;align-items:baseline;gap:10px;padding:12px 0;font-size:15px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.feature-index li b{color:var(--brand-900);font-weight:700}
.feature-index li.is-current{color:var(--brand-900);font-weight:600;box-shadow:inset -1px 0 0 var(--accent)}
.feature-cards{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-big);padding:26px;box-shadow:var(--shadow-card);transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-float);border-color:rgba(15,61,51,.4)}
.feature-card.wide{grid-column:1 / -1;display:grid;grid-template-columns:1.1fr 1fr;gap:28px;align-items:center}
.feature-card h3{font-size:21px;line-height:1.4}
.feature-card p{margin-top:12px;font-size:15px;color:var(--ink-2)}
.feature-points{margin-top:18px;display:flex;flex-direction:column;gap:9px}
.feature-points li{font-size:14px;color:var(--ink-2);padding-left:18px;position:relative}
.feature-points li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:var(--accent)}
.feature-card img{border-radius:var(--radius-img);width:100%;height:230px;object-fit:cover}

/* ---------- scenes ---------- */
.scene-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:40px 0;border-bottom:1px solid var(--line)}
.scene-row:last-child{border-bottom:none}
.scene-row.reverse .scene-media{order:2}
.scene-media{position:relative}
.scene-media img{width:100%;height:260px;object-fit:cover;border-radius:var(--radius-img)}
.scene-media figcaption{position:absolute;left:14px;bottom:14px;background:rgba(8,36,30,.8);color:var(--sand);font-size:12px;padding:5px 12px;border-radius:999px}
.scene-body h3{font-size:22px;line-height:1.4}
.scene-body p{margin-top:12px;color:var(--ink-2);font-size:15.5px}
.scene-facts{display:flex;gap:28px;margin-top:20px}
.scene-facts div b{display:block;font-size:22px;font-weight:800;color:var(--brand-900);font-variant-numeric:tabular-nums;line-height:1.3}
.scene-facts div span{font-size:13px;color:var(--ink-3)}

/* ---------- cases ---------- */
.case-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.case-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-big);padding:30px;box-shadow:var(--shadow-card);border-top:3px solid var(--brand-900);transition:transform .18s ease-out,box-shadow .18s ease-out}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-float)}
.case-quote{font-size:17px;line-height:1.85;color:var(--ink)}
.case-metrics{display:flex;gap:32px;margin-top:22px;padding-top:20px;border-top:1px solid var(--line-soft)}
.case-metrics b{display:block;font-size:24px;font-weight:800;color:var(--brand-900);font-variant-numeric:tabular-nums;line-height:1.25}
.case-metrics span{font-size:13px;color:var(--ink-3)}
.case-name{margin-top:18px;font-size:14px;color:var(--ink-3)}
.case-strip{display:flex;gap:16px;margin-top:24px;overflow-x:auto;padding-bottom:6px}
.case-mini{flex:none;width:220px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:16px;font-size:13.5px;color:var(--ink-2);box-shadow:var(--shadow-card)}
.case-mini b{display:block;color:var(--brand-900);font-size:15px;margin-bottom:6px}

/* ---------- price ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-big);padding:30px;display:flex;flex-direction:column;box-shadow:var(--shadow-card);transition:transform .18s ease-out,box-shadow .18s ease-out}
.price-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-float)}
.price-card.featured{border:2px solid var(--accent);box-shadow:var(--shadow-float)}
.price-card.featured::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--accent);border-radius:14px 14px 0 0}
.price-badge{position:absolute;right:24px;top:-1px;background:var(--accent);color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:0 0 8px 8px}
.price-card h3{font-size:19px}
.price-amount{margin:18px 0 6px;font-size:34px;font-weight:800;color:var(--brand-900);font-variant-numeric:tabular-nums;line-height:1.1}
.price-amount small{font-size:14px;font-weight:500;color:var(--ink-3);margin-left:4px}
.price-desc{font-size:14px;color:var(--ink-3);min-height:44px}
.price-list{margin:22px 0;display:flex;flex-direction:column;gap:11px;flex:1}
.price-list li{font-size:14.5px;color:var(--ink-2);padding-left:20px;position:relative}
.price-list li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;background:var(--lime);border:1px solid var(--brand-900)}
.price-foot{margin-top:26px;display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:22px;border-top:1px solid var(--line-soft);font-size:14px;color:var(--ink-3)}
.price-card .btn{width:100%}

/* ---------- cms list ---------- */
.cms-grid{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:start}
.cms-lead{background:#fff;border:1px solid var(--line);border-radius:var(--radius-big);overflow:hidden;box-shadow:var(--shadow-card);display:block;transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out}
.cms-lead:hover{transform:translateY(-2px);box-shadow:var(--shadow-float);border-color:rgba(15,61,51,.4)}
.cms-lead-media{position:relative}
.cms-lead-media img{width:100%;height:280px;object-fit:cover}
.badge-cat{position:absolute;left:16px;bottom:16px;background:var(--brand-900);color:var(--sand);font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px}
.cms-lead-body{padding:24px}
.cms-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums}
.cms-meta i{width:1px;height:12px;background:var(--line);display:inline-block}
.cms-lead-body h3{margin-top:12px;font-size:21px;line-height:1.5}
.cms-lead-body p{margin-top:12px;font-size:14.5px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.cms-more{margin-top:18px;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-900)}
.cms-side{display:flex;flex-direction:column}
.cms-item{display:block;padding:20px 0;border-bottom:1px solid var(--line);transition:padding-left .18s ease-out}
.cms-item:first-child{padding-top:0}
.cms-item:hover{padding-left:6px}
.cms-item:hover h4{color:var(--brand-900)}
.cms-item h4{font-size:17px;line-height:1.55;transition:color .18s ease-out;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-item p{margin-top:8px;font-size:14px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cms-item .cms-meta{margin-top:10px}
.cms-empty{background:#fff;border:1px dashed var(--line);border-radius:var(--radius-big);padding:56px 32px;text-align:center}
.cms-empty-icon{width:56px;height:56px;margin:0 auto 18px;border-radius:14px;background:rgba(205,242,74,.45);display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--brand-900);font-weight:800}
.cms-empty p{color:var(--ink-2);font-size:15.5px}
.cms-empty .btn{margin-top:22px}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:start}
.faq-col{display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:border-color .18s ease-out,box-shadow .18s ease-out}
.faq-item.is-open{border-color:rgba(15,61,51,.4);box-shadow:var(--shadow-card)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;background:none;border:none;text-align:left;font-size:17px;font-weight:600;cursor:pointer;position:relative}
.faq-q:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
.faq-item.is-open .faq-q::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--accent)}
.faq-icon{flex:none;width:22px;height:22px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--brand-900);transition:transform .2s ease-out,background-color .2s}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--accent);border-color:var(--accent);color:#fff}
.faq-a{display:none;padding:0 20px 20px;font-size:15px;color:var(--ink-2);line-height:1.8}
.faq-item.is-open .faq-a{display:block}

/* ---------- cta ---------- */
.cta-band{position:relative;background:var(--brand-900);color:var(--sand);overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(115deg,rgba(205,242,74,.10) 0 2px,transparent 2px 26px)}
.cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0}
.cta-inner h2{font-size:27px;color:#fff;line-height:1.4}
.cta-inner p{margin-top:10px;font-size:15px;color:rgba(247,246,241,.78);max-width:640px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-950);color:rgba(247,246,241,.8);font-size:13.5px;padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:18px;color:#fff}
.footer-brand .logo-mark{background:var(--accent)}
.footer-desc{margin-top:16px;line-height:1.85;color:rgba(247,246,241,.7)}
.footer-contact{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.footer-contact span{color:var(--lime);font-variant-numeric:tabular-nums}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{color:rgba(247,246,241,.8);transition:color .18s ease-out}
.footer-links a:hover{color:var(--lime)}
.footer-form{display:flex;gap:10px;margin-top:6px}
.footer-form input{flex:1;min-width:0;height:44px;padding:0 14px;border-radius:var(--radius-btn);border:1px solid rgba(247,246,241,.22);background:rgba(255,255,255,.06);color:#fff;font-size:14px}
.footer-form input::placeholder{color:rgba(247,246,241,.45)}
.footer-form input:focus{outline:none;border-color:var(--lime);box-shadow:0 0 0 2px rgba(205,242,74,.25)}
.footer-note{margin-top:12px;font-size:12.5px;color:rgba(247,246,241,.5)}
.footer-bottom{border-top:1px solid rgba(247,246,241,.16);padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:12.5px;color:rgba(247,246,241,.55);flex-wrap:wrap}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .nav-list{gap:20px}
  .value-cards.shift{transform:translateX(24px)}
}
@media (max-width:1023px){
  :root{--space-section:64px}
  .nav-list{display:none}
  .nav-toggle{display:flex}
  .hero-inner{grid-template-columns:1fr;padding:56px 0 64px;min-height:0;gap:36px}
  .hero h1{font-size:34px}
  .hero-media img{height:300px}
  .hero-media::after{display:none}
  .value-grid{grid-template-columns:1fr;gap:36px}
  .value-cards.shift{transform:none}
  .feature-grid{grid-template-columns:1fr;gap:28px}
  .feature-index{border-right:none;border-bottom:1px solid var(--line);padding:0 0 16px;display:flex;gap:24px}
  .feature-index li{padding:6px 0}
  .feature-index li.is-current{box-shadow:inset 0 -2px 0 var(--accent)}
  .cms-grid{grid-template-columns:1fr;gap:24px}
  .faq-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:48px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .topbar-hint,.topbar-left .topbar-sep,.topbar-domain{display:none}
  .section-head{flex-direction:column;gap:12px;margin-bottom:32px}
  .section-index{padding-top:0}
  .section-head h2{font-size:26px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:16px}
  .hero-stats{grid-template-columns:1fr 1fr;gap:18px}
  .hero-stat{border-right:none;padding-right:0}
  .hero-stat:nth-child(odd){border-right:1px solid rgba(247,246,241,.18);padding-right:18px}
  .hero-actions .btn{width:100%}
  .value-left h2{font-size:26px}
  .value-cards{grid-template-columns:1fr}
  .feature-cards{grid-template-columns:1fr}
  .feature-card.wide{grid-template-columns:1fr}
  .feature-index{flex-wrap:wrap;gap:14px}
  .scene-row{grid-template-columns:1fr;gap:24px;padding:28px 0}
  .scene-row.reverse .scene-media{order:0}
  .scene-facts{gap:20px;flex-wrap:wrap}
  .case-grid{grid-template-columns:1fr}
  .case-metrics{flex-wrap:wrap;gap:20px}
  .price-grid{grid-template-columns:1fr}
  .cms-lead-media img{height:210px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-form{flex-direction:column}
  .footer-form .btn{width:100%}
  .btn{width:auto}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
}
@media (max-width:520px){
  .section{padding:52px 0}
  .hero{padding-top:8px}
  .hero-stats{grid-template-columns:1fr}
  .hero-stat{border-right:none !important;padding-right:0 !important}
  .price-amount{font-size:29px}
  .case-card{padding:22px}
}

/* roulang page: article */
:root{
  --brand-deep:#08241E;
  --brand-900:#0F3D33;
  --brand-700:#14513F;
  --brand-500:#2C6B58;
  --accent:#FF6A2B;
  --accent-600:#E85B1F;
  --lime:#CDF24A;
  --sand:#F7F6F1;
  --white:#FFFFFF;
  --text:#141A18;
  --text-2:#4A5751;
  --text-3:#8A938E;
  --border:#E2E0D6;
  --line:#EDEBE3;
  --r-lg:16px;
  --r:14px;
  --r-sm:10px;
  --shadow-card:0 1px 2px rgba(15,61,51,.06), 0 10px 28px -18px rgba(15,61,51,.35);
  --shadow-float:0 8px 20px -8px rgba(15,61,51,.28);
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"Noto Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p{margin:0;}
ul,ol{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}
::selection{background:var(--lime);color:var(--brand-deep);}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num,.article-meta,.pager-num{font-variant-numeric:tabular-nums;}

/* ---------- 阅读进度 ---------- */
.read-progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--accent);z-index:90;transition:width 80ms linear;}

/* ---------- 顶部信息条 ---------- */
.site-header{position:relative;z-index:60;}
.topbar{background:var(--brand-deep);font-size:13px;}
.topbar-inner{height:38px;display:flex;align-items:center;justify-content:space-between;gap:16px;color:rgba(247,246,241,.82);}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:12px;min-width:0;}
.topbar-domain{color:#fff;letter-spacing:.02em;white-space:nowrap;}
.topbar-hint{color:rgba(247,246,241,.68);white-space:nowrap;}
.topbar-sep{width:1px;height:14px;background:rgba(247,246,241,.26);display:inline-block;flex:0 0 1px;}
.topbar-link{color:rgba(247,246,241,.85);transition:color var(--ease);white-space:nowrap;}
.topbar-link:hover{color:var(--lime);}

/* ---------- 主导航 ---------- */
.mainnav{
  position:sticky;top:0;z-index:55;
  background:rgba(247,246,241,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--border);
  transition:background var(--ease),box-shadow var(--ease);
}
.mainnav.is-scrolled{background:#fff;box-shadow:var(--shadow-card);}
.mainnav-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--brand-900);white-space:nowrap;}
.logo-mark{width:8px;height:8px;border-radius:2px;background:var(--accent);flex:0 0 8px;}
.nav-list{display:flex;align-items:center;gap:28px;list-style:none;padding:0;}
.nav-link{position:relative;display:inline-block;padding:8px 0;font-size:15px;font-weight:500;color:var(--text-2);transition:color var(--ease);}
.nav-link:hover{color:var(--brand-900);}
.nav-link.is-active{color:var(--brand-900);font-weight:700;}
.nav-link.is-active::after{content:"";position:absolute;left:0;bottom:-19px;width:24px;height:3px;border-radius:2px;background:var(--accent);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{display:none;width:44px;height:44px;flex-direction:column;align-items:center;justify-content:center;gap:5px;background:#fff;border:1px solid var(--border);border-radius:var(--r-sm);cursor:pointer;transition:border-color var(--ease),box-shadow var(--ease);}
.nav-toggle:hover{border-color:rgba(15,61,51,.4);box-shadow:var(--shadow-card);}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-900);}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;font-size:15px;font-weight:600;border:1px solid transparent;border-radius:var(--r-sm);cursor:pointer;transition:background var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease),transform var(--ease),filter var(--ease);}
.btn-primary{background:var(--brand-900);color:var(--sand);}
.btn-primary:hover{background:var(--brand-700);box-shadow:var(--shadow-float);}
.btn-primary:active{background:var(--brand-deep);transform:translateY(1px);}
.btn-outline{background:transparent;border-color:var(--brand-900);color:var(--brand-900);}
.btn-outline:hover{background:var(--brand-900);color:var(--sand);}
.btn-outline:active{transform:translateY(1px);}
.btn-accent{background:var(--accent);color:var(--brand-deep);}
.btn-accent:hover{filter:brightness(1.04);transform:translateY(-1px);box-shadow:var(--shadow-float);}
.btn-accent:active{transform:translateY(0);background:var(--accent-600);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

/* ---------- 抽屉 ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(8,36,30,.45);z-index:70;opacity:0;visibility:hidden;transition:opacity 220ms ease-out,visibility 220ms ease-out;}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{position:fixed;top:0;left:0;bottom:0;width:280px;max-width:84vw;background:#fff;z-index:80;transform:translateX(-100%);transition:transform 220ms ease-out;padding:20px;overflow-y:auto;}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{width:36px;height:36px;border:1px solid var(--border);border-radius:var(--r-sm);background:#fff;cursor:pointer;font-size:16px;line-height:1;color:var(--text-2);transition:border-color var(--ease),color var(--ease);}
.drawer-close:hover{border-color:var(--brand-900);color:var(--brand-900);}
.drawer-list{list-style:none;padding:0;margin:8px 0 20px;}
.drawer-list a{display:block;padding:14px 0;border-bottom:1px solid var(--line);font-size:15px;color:var(--text-2);transition:color var(--ease);}
.drawer-list a:hover{color:var(--brand-900);}
.drawer-list a.is-active{color:var(--brand-900);font-weight:700;}

/* ---------- 文章头部 ---------- */
.article-hero{background:linear-gradient(180deg,#fff 0%,var(--sand) 100%);border-bottom:1px solid var(--border);padding:36px 0 0;}
.article-wrap{max-width:780px;margin:0 auto;}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--text-3);}
.breadcrumb a{color:var(--text-3);transition:color var(--ease);}
.breadcrumb a:hover{color:var(--accent);}
.crumb-sep{color:var(--border);}
.crumb-current{color:var(--text-2);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-head{padding:22px 0 40px;}
.badge{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:600;letter-spacing:.01em;padding:6px 14px;border-radius:999px;background:rgba(205,242,74,.32);color:var(--brand-900);border:1px solid rgba(15,61,51,.14);}
.badge::before{content:"";width:6px;height:6px;border-radius:1px;background:var(--accent);display:block;}
.article-title{font-size:42px;line-height:1.25;font-weight:800;letter-spacing:-.01em;color:var(--brand-deep);margin-top:18px;}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:12px;margin-top:20px;font-size:13px;color:var(--text-3);}
.meta-sep{width:1px;height:12px;background:var(--border);display:inline-block;}
.rule-ticks{height:10px;background-image:repeating-linear-gradient(90deg,rgba(15,61,51,.16) 0 1px,transparent 1px 24px);background-position:left bottom;background-repeat:repeat-x;background-size:24px 8px;}

/* ---------- 正文 ---------- */
.article-body{max-width:780px;margin:0 auto;padding:44px 0 0;font-size:17px;line-height:1.9;color:var(--text);}
.article-body p{margin:0 0 1.2em;}
.article-body h2{font-size:28px;line-height:1.35;font-weight:700;color:var(--brand-deep);margin:48px 0 16px;padding-left:16px;border-left:3px solid var(--accent);}
.article-body h3{font-size:21px;line-height:1.45;font-weight:700;color:var(--brand-deep);margin:32px 0 12px;}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 10px;color:var(--brand-900);}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 1.2em;}
.article-body li{margin:8px 0;line-height:1.85;}
.article-body blockquote{margin:26px 0;padding:18px 22px;background:rgba(205,242,74,.2);border-left:4px solid var(--brand-900);border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--brand-deep);font-size:16px;}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:26px auto;}
.article-body figure{margin:26px 0;}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px;}
.article-body a{color:var(--brand-900);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px;transition:text-decoration-color var(--ease);}
.article-body a:hover{text-decoration-color:var(--accent);}
.article-body strong{font-weight:700;color:var(--brand-deep);}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--border);padding:10px 14px;text-align:left;}
.article-body th{background:var(--sand);font-weight:600;color:var(--brand-deep);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}

/* ---------- 空态 ---------- */
.article-empty{max-width:780px;margin:0 auto;padding:80px 0;text-align:center;}
.empty-mark{width:56px;height:56px;margin:0 auto 20px;border-radius:var(--r);border:1px dashed var(--border);background:#fff;display:flex;align-items:center;justify-content:center;font-size:22px;color:var(--text-3);}
.article-empty h2{font-size:24px;font-weight:700;color:var(--brand-deep);margin-bottom:12px;}
.article-empty p{font-size:15px;color:var(--text-2);margin-bottom:26px;}

/* ---------- 标签 ---------- */
.article-tags{max-width:780px;margin:44px auto 0;padding-top:26px;border-top:1px solid var(--line);display:flex;align-items:center;flex-wrap:wrap;gap:10px;}
.tags-label{font-size:13px;color:var(--text-3);margin-right:4px;}
.tag-pill{font-size:13px;padding:6px 14px;border-radius:999px;background:rgba(205,242,74,.28);color:var(--brand-900);transition:background var(--ease),color var(--ease);}
.tag-pill:hover{background:var(--brand-900);color:var(--sand);}

/* ---------- 相关推荐 ---------- */
.related{padding:72px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.section-title{font-size:28px;font-weight:700;color:var(--brand-deep);line-height:1.35;}
.section-sub{font-size:14px;color:var(--text-3);margin-top:8px;}
.section-more{font-size:14px;font-weight:600;color:var(--brand-900);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px;transition:text-decoration-color var(--ease);}
.section-more:hover{text-decoration-color:var(--accent);}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:28px;}
.card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:var(--r);overflow:hidden;transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);}
.card:hover{border-color:rgba(15,61,51,.4);box-shadow:var(--shadow-card);transform:translateY(-2px);}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--sand);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease-out;}
.card:hover .card-media img{transform:scale(1.04);}
.card-badge{position:absolute;left:12px;bottom:12px;font-size:12px;padding:4px 10px;border-radius:999px;background:var(--brand-900);color:var(--sand);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-time{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;}
.card-title{font-size:18px;font-weight:700;line-height:1.5;color:var(--text);}
.card-desc{font-size:14px;line-height:1.7;color:var(--text-2);}
.card-link{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-900);}
.card-link .arrow{transition:transform var(--ease);}
.card:hover .card-link .arrow{transform:translateX(4px);}

/* ---------- 翻页 ---------- */
.pager{max-width:780px;margin:56px auto 0;padding-top:28px;border-top:1px solid var(--line);display:flex;gap:16px;justify-content:space-between;}
.pager-link{flex:1;display:flex;flex-direction:column;gap:6px;padding:18px;background:#fff;border:1px solid var(--border);border-radius:var(--r);transition:border-color var(--ease),box-shadow var(--ease),transform var(--ease);}
.pager-link:hover{border-color:rgba(15,61,51,.4);box-shadow:var(--shadow-card);transform:translateY(-2px);}
.pager-dir{font-size:12px;color:var(--text-3);}
.pager-text{font-size:15px;font-weight:600;color:var(--brand-900);line-height:1.5;}
.pager-next{text-align:right;}
.back-row{max-width:780px;margin:24px auto 0;}

/* ---------- CTA 带 ---------- */
.cta-band-wrap{padding:64px 0 0;}
.cta-band{position:relative;overflow:hidden;background:var(--brand-900);color:var(--sand);border-radius:var(--r-lg);padding:44px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 1px,transparent 1px 26px);}
.cta-title{font-size:26px;font-weight:700;line-height:1.4;color:#fff;}
.cta-desc{font-size:14px;line-height:1.8;color:rgba(247,246,241,.78);margin-top:10px;max-width:540px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:rgba(247,246,241,.8);padding:64px 0 28px;margin-top:80px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:#fff;}
.footer-desc{font-size:13px;line-height:1.85;color:rgba(247,246,241,.7);margin-top:16px;max-width:330px;}
.footer-contact{display:flex;flex-direction:column;gap:6px;margin-top:16px;font-size:13px;color:rgba(247,246,241,.72);font-variant-numeric:tabular-nums;}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:13px;color:rgba(247,246,241,.8);transition:color var(--ease);}
.footer-links a:hover{color:var(--lime);}
.footer-form{display:flex;flex-direction:column;gap:10px;}
.footer-form input{height:46px;padding:0 14px;border-radius:var(--r-sm);border:1px solid rgba(247,246,241,.22);background:rgba(255,255,255,.06);color:#fff;font-size:14px;transition:border-color var(--ease);}
.footer-form input::placeholder{color:rgba(247,246,241,.5);}
.footer-form input:focus{outline:none;border-color:var(--lime);}
.footer-form .btn{height:44px;font-size:14px;}
.footer-note{font-size:12px;line-height:1.7;color:rgba(247,246,241,.55);margin-top:12px;}
.footer-bottom{margin-top:48px;padding-top:20px;border-top:1px solid rgba(247,246,241,.14);display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:12px;color:rgba(247,246,241,.6);font-variant-numeric:tabular-nums;}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-list{display:none;}
  .nav-toggle{display:flex;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .article-title{font-size:36px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .topbar-left{display:none;}
  .topbar-inner{justify-content:flex-end;}
  .mainnav-inner{height:62px;}
  .article-hero{padding-top:24px;}
  .article-title{font-size:30px;margin-top:14px;}
  .article-body{font-size:16px;padding-top:32px;}
  .article-body h2{font-size:23px;margin-top:36px;}
  .article-body h3{font-size:19px;margin-top:26px;}
  .article-head{padding:18px 0 30px;}
  .card-grid{grid-template-columns:1fr;}
  .related{padding-top:56px;}
  .pager{flex-direction:column;}
  .pager-next{text-align:left;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 22px;}
  .cta-title{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .crumb-current{max-width:200px;}
}
@media (max-width:640px){
  .nav-actions .btn-sm{display:none;}
  .cta-band .btn{width:100%;}
  .btn-block-mobile{width:100%;}
}

/* roulang page: category1 */
:root{
  --brand-900:#0F3D33;
  --brand-950:#08241E;
  --brand-700:#14513F;
  --accent:#FF6A2B;
  --lime:#CDF24A;
  --sand:#F7F6F1;
  --white:#FFFFFF;
  --ink:#141A18;
  --ink-2:#4A5751;
  --ink-3:#8A938E;
  --line:#E2E0D6;
  --line-2:#EDEBE3;
  --danger:#C0392B;
  --ok:#1F7A4D;
  --r-lg:16px;
  --r-md:14px;
  --r-sm:10px;
  --r-pill:999px;
  --shadow-card:0 1px 2px rgba(15,61,51,.06), 0 10px 28px -18px rgba(15,61,51,.35);
  --shadow-float:0 8px 20px -8px rgba(15,61,51,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"Noto Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:12px}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--ink)}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
[id]{scroll-margin-top:104px}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--brand-950);color:rgba(247,246,241,.86);font-size:13px;line-height:1.6}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:38px;gap:16px}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:12px;min-width:0}
.topbar-sep{width:1px;height:14px;background:rgba(247,246,241,.28);display:inline-block}
.topbar-domain{font-variant-numeric:tabular-nums;letter-spacing:.02em;opacity:.75}
.topbar-hint{opacity:.72;white-space:nowrap}
.topbar-link{color:rgba(247,246,241,.92);transition:color 160ms ease-out;white-space:nowrap}
.topbar-link:hover{color:var(--lime)}

/* ============ 主导航 ============ */
.site-header{position:relative;z-index:70}
.mainnav{position:sticky;top:0;z-index:70;background:var(--white);border-bottom:1px solid var(--line);transition:box-shadow 200ms ease-out}
.mainnav.is-scrolled{box-shadow:var(--shadow-card)}
.mainnav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:var(--brand-900);white-space:nowrap;letter-spacing:.01em}
.logo-mark{width:10px;height:10px;background:var(--accent);border-radius:2px;display:inline-block;flex:0 0 10px}
.nav-list{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;display:inline-flex;align-items:center;height:68px;font-size:15px;font-weight:500;color:var(--ink-2);transition:color 160ms ease-out}
.nav-link::after{content:"";position:absolute;left:0;bottom:16px;width:0;height:3px;border-radius:2px;background:var(--accent);transition:width 180ms ease-out}
.nav-link:hover{color:var(--brand-900)}
.nav-link:hover::after{width:24px}
.nav-link.is-active{color:var(--brand-900);font-weight:600}
.nav-link.is-active::after{width:24px}
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;transition:border-color 160ms ease-out,background 160ms ease-out}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;transition:transform 200ms ease-out,opacity 160ms ease-out}
.nav-toggle:hover{border-color:rgba(15,61,51,.4);background:var(--sand)}
.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)}

/* ============ 按钮系统 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border:1px solid transparent;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;white-space:nowrap;
  transition:background 180ms ease-out,color 180ms ease-out,box-shadow 180ms ease-out,transform 180ms ease-out,border-color 180ms ease-out;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--brand-900);color:var(--sand)}
.btn-primary:hover{background:var(--brand-700);box-shadow:var(--shadow-float)}
.btn-primary:active{background:var(--brand-950)}
.btn-secondary{background:transparent;border-color:var(--brand-900);color:var(--brand-900)}
.btn-secondary:hover{background:var(--brand-900);color:var(--sand);box-shadow:var(--shadow-float)}
.btn-accent{background:var(--accent);color:var(--brand-950)}
.btn-accent:hover{filter:brightness(1.04);transform:translateY(-1px);box-shadow:var(--shadow-float)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-group{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.link-plain{color:var(--brand-900);font-weight:600;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px;transition:color 160ms ease-out}
.link-plain:hover{color:var(--accent)}

/* ============ 页面横幅 ============ */
.page-hero{
  position:relative;overflow:hidden;
  background-color:var(--sand);
  background-image:
    linear-gradient(180deg,rgba(247,246,241,.94),rgba(247,246,241,.88)),
    url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.page-hero::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:repeating-linear-gradient(90deg,var(--line) 0 8px,transparent 8px 24px)}
.page-hero-inner{position:relative;z-index:2;padding:32px 0 36px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);line-height:1.6}
.breadcrumb a{color:var(--ink-3);transition:color 160ms ease-out}
.breadcrumb a:hover{color:var(--brand-900)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink);font-weight:600}
.badge{
  display:inline-flex;align-items:center;gap:8px;margin:18px 0 0;
  padding:5px 12px;border-radius:4px;font-size:13px;font-weight:600;
  color:var(--brand-900);background:rgba(205,242,74,.34);border:1px solid rgba(15,61,51,.16);
}
.page-hero h1{margin:14px 0 0;font-size:44px;line-height:1.25;font-weight:800;letter-spacing:.01em;color:var(--brand-950)}
.page-hero-lead{margin:14px 0 0;max-width:760px;font-size:17px;line-height:1.85;color:var(--ink-2)}

/* ============ 数据条 ============ */
.stat-strip{margin-top:-30px;position:relative;z-index:6}
.stat-strip-inner{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-card);padding:22px 6px;
}
.stat-item{padding:0 22px;border-right:1px solid var(--line-2)}
.stat-item:last-child{border-right:0}
.stat-num{font-size:28px;font-weight:800;line-height:1.2;color:var(--brand-900);font-variant-numeric:tabular-nums}
.stat-label{margin-top:2px;font-size:13px;line-height:1.6;color:var(--ink-3)}

/* ============ 主布局 ============ */
.layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:32px;padding:64px 0 88px;align-items:start}
.toc{position:sticky;top:104px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:18px;box-shadow:var(--shadow-card)}
.toc-title{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--ink-3);text-transform:uppercase;margin-bottom:10px}
.toc-list a{
  display:block;padding:10px 12px;font-size:14px;color:var(--ink-2);
  border-left:3px solid transparent;border-radius:0 8px 8px 0;
  transition:background 160ms ease-out,color 160ms ease-out,border-color 160ms ease-out;
}
.toc-list a:hover{background:rgba(15,61,51,.05);color:var(--brand-900)}
.toc-list a.is-current{background:rgba(15,61,51,.06);border-left-color:var(--accent);color:var(--brand-900);font-weight:600}
.toc-note{margin-top:16px;padding-top:16px;border-top:1px solid var(--line-2);font-size:13px;line-height:1.7;color:var(--ink-3)}

/* ============ 内容区块 ============ */
.content-section{margin-bottom:64px}
.content-section:last-child{margin-bottom:0}
.sec-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:26px}
.sec-num{font-size:14px;font-weight:800;letter-spacing:.08em;color:var(--accent);font-variant-numeric:tabular-nums;padding-top:9px}
.sec-title{font-size:32px;line-height:1.3;font-weight:700;color:var(--brand-950)}
.sec-desc{margin:10px 0 0;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:800px}

/* ============ 卡片 ============ */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;
  transition:transform 180ms ease-out,border-color 180ms ease-out,box-shadow 180ms ease-out;
}
.card:hover{transform:translateY(-2px);border-color:rgba(15,61,51,.4);box-shadow:var(--shadow-card)}
.card-media{aspect-ratio:4/3;overflow:hidden;background:var(--line-2);border-radius:0}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform 420ms ease-out}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{display:flex;flex-direction:column;gap:10px;padding:20px;flex:1}
.card-tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-flex;align-items:center;font-size:12px;line-height:1.6;padding:3px 10px;border-radius:var(--r-pill);background:rgba(205,242,74,.35);color:var(--brand-900);border:1px solid rgba(15,61,51,.14)}
.tag-ghost{background:rgba(15,61,51,.05);border-color:var(--line);color:var(--ink-2)}
.card-title{font-size:18px;font-weight:700;line-height:1.45;color:var(--ink)}
.card-text{margin:0;font-size:14px;line-height:1.75;color:var(--ink-2)}
.card-link{margin-top:auto;padding-top:6px;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-900)}
.card-link svg{transition:transform 180ms ease-out}
.card:hover .card-link svg{transform:translateX(4px)}
.card:hover .card-link{color:var(--accent)}

/* ============ 清单行 ============ */
.row-list{border-top:1px solid var(--line-2)}
.row-item{display:grid;grid-template-columns:44px minmax(0,1fr) 160px;gap:20px;padding:20px 0;border-bottom:1px solid var(--line-2);align-items:start;transition:background 160ms ease-out}
.row-item:hover{background:rgba(15,61,51,.03)}
.row-num{font-size:14px;font-weight:800;letter-spacing:.06em;color:var(--accent);font-variant-numeric:tabular-nums;padding-top:3px}
.row-title{font-size:17px;font-weight:700;line-height:1.5;margin-bottom:4px}
.row-text{margin:0;font-size:14px;line-height:1.75;color:var(--ink-2)}
.row-side{font-size:13px;line-height:1.7;color:var(--ink-3);text-align:right;padding-top:4px}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:7fr 5fr;gap:16px;align-items:start}
.faq-col{display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;transition:box-shadow 180ms ease-out,border-color 180ms ease-out}
.faq-item:hover{border-color:rgba(15,61,51,.35)}
.faq-item.is-open{box-shadow:inset 3px 0 0 var(--accent),var(--shadow-card)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;background:none;border:0;text-align:left;font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);cursor:pointer;transition:color 160ms ease-out}
.faq-q:hover{color:var(--brand-900)}
.faq-icon{position:relative;flex:0 0 18px;width:18px;height:18px;transition:transform 200ms ease-out}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-900);border-radius:2px;transition:transform 200ms ease-out,opacity 200ms ease-out}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-icon{transform:rotate(90deg)}
.faq-item.is-open .faq-icon::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms ease-out}
.faq-item.is-open .faq-a{max-height:400px}
.faq-a-inner{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ============ CTA 带 ============ */
.cta-band{
  background-color:var(--brand-900);
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.055) 0 2px,transparent 2px 18px);
  padding:56px 0;color:var(--sand);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px}
.cta-title{font-size:26px;font-weight:700;line-height:1.35;color:#fff}
.cta-text{margin:10px 0 0;font-size:15px;line-height:1.8;color:rgba(247,246,241,.8);max-width:620px}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-950);color:rgba(247,246,241,.8);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-desc{margin:0 0 16px;font-size:13px;line-height:1.8;color:rgba(247,246,241,.72);max-width:320px}
.footer-contact{display:flex;flex-direction:column;gap:6px;font-size:13px;line-height:1.7;color:rgba(247,246,241,.72);font-variant-numeric:tabular-nums}
.footer-title{margin:0 0 16px;font-size:14px;font-weight:600;color:#fff;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13px;color:rgba(247,246,241,.78);transition:color 160ms ease-out}
.footer-links a:hover{color:var(--lime)}
.footer-form{display:flex;flex-direction:column;gap:10px}
.footer-form input{
  height:46px;padding:0 14px;border-radius:var(--r-sm);
  border:1px solid rgba(247,246,241,.24);background:rgba(255,255,255,.06);
  color:#fff;font-size:14px;transition:border-color 160ms ease-out,background 160ms ease-out;
}
.footer-form input::placeholder{color:rgba(247,246,241,.5)}
.footer-form input:focus{outline:none;border-color:var(--accent);background:rgba(255,255,255,.1)}
.footer-form .btn{width:100%}
.footer-note{margin:12px 0 0;font-size:12px;line-height:1.7;color:rgba(247,246,241,.55)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0 28px;border-top:1px solid rgba(247,246,241,.16);
  font-size:12.5px;line-height:1.7;color:rgba(247,246,241,.6);
}

/* ============ 移动抽屉 ============ */
.drawer-backdrop{position:fixed;inset:0;background:rgba(8,36,30,.45);opacity:0;pointer-events:none;transition:opacity 220ms ease-out;z-index:90}
.drawer-backdrop.is-open{opacity:1;pointer-events:auto}
.mobile-drawer{
  position:fixed;top:0;left:0;bottom:0;width:280px;max-width:86vw;background:#fff;z-index:100;
  transform:translateX(-100%);transition:transform 260ms ease-out;display:flex;flex-direction:column;
  box-shadow:var(--shadow-float);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 18px;border-bottom:1px solid var(--line-2)}
.drawer-close{width:36px;height:36px;border:1px solid var(--line);border-radius:9px;background:#fff;cursor:pointer;font-size:18px;line-height:1;color:var(--brand-900);transition:border-color 160ms ease-out,background 160ms ease-out}
.drawer-close:hover{border-color:rgba(15,61,51,.4);background:var(--sand)}
.drawer-nav{display:flex;flex-direction:column;overflow-y:auto;padding:8px 0}
.drawer-nav a{padding:14px 18px;font-size:15px;color:var(--ink-2);border-bottom:1px solid var(--line-2);transition:color 160ms ease-out,background 160ms ease-out}
.drawer-nav a:hover{color:var(--brand-900);background:rgba(15,61,51,.04)}
.drawer-nav a.is-active{color:var(--brand-900);font-weight:600;box-shadow:inset 3px 0 0 var(--accent);background:rgba(15,61,51,.05)}
.drawer-foot{margin-top:auto;padding:18px;border-top:1px solid var(--line-2)}
.drawer-foot .btn{width:100%}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-list{display:none}
  .nav-toggle{display:inline-flex}
  .layout{grid-template-columns:minmax(0,1fr);gap:32px;padding:48px 0 64px}
  .toc{position:static}
  .faq-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .page-hero h1{font-size:36px}
  .sec-title{font-size:28px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .topbar-left{display:none}
  .page-hero-inner{padding:26px 0 30px}
  .page-hero h1{font-size:30px}
  .page-hero-lead{font-size:15.5px}
  .stat-strip{margin-top:0}
  .stat-strip-inner{grid-template-columns:1fr 1fr;gap:18px 0;padding:18px 6px}
  .stat-item{border-right:0;padding:0 18px}
  .stat-item:nth-child(odd){border-right:1px solid var(--line-2)}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .row-item{grid-template-columns:36px minmax(0,1fr);gap:14px}
  .row-side{grid-column:2;text-align:left}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:22px}
  .cta-title{font-size:22px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .sec-title{font-size:24px}
  .content-section{margin-bottom:48px}
}
@media (max-width:519px){
  .btn-group{flex-direction:column;align-items:stretch}
  .btn-group .btn{width:100%}
  .nav-actions .btn-sm{padding:0 14px;font-size:13px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
}

/* roulang page: category2 */
:root{
    --brand-900:#08241E;
    --brand-700:#0F3D33;
    --brand-500:#14513F;
    --accent:#FF6A2B;
    --lime:#CDF24A;
    --sand:#F7F6F1;
    --white:#FFFFFF;
    --text:#141A18;
    --text-2:#4A5751;
    --text-3:#8A938E;
    --border:#E2E0D6;
    --line:#EDEBE3;
    --danger:#C0392B;
    --success:#1F7A4D;
    --radius-lg:16px;
    --radius:14px;
    --radius-btn:10px;
    --radius-img:12px;
    --shadow-card:0 1px 2px rgba(15,61,51,.06), 0 10px 28px -18px rgba(15,61,51,.35);
    --shadow-float:0 8px 20px -8px rgba(15,61,51,.28);
    --container:1200px;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:system-ui,-apple-system,"Noto Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
    background:var(--sand);
    color:var(--text);
    font-size:16.5px;
    line-height:1.85;
    font-variant-numeric:tabular-nums;
  }
  img{max-width:100%;display:block;border-radius:var(--radius-img)}
  a{color:var(--brand-700);text-decoration:none;transition:color .18s ease-out}
  a:hover{color:var(--accent)}
  button{font:inherit}
  p{margin:0 0 1em}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

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

  /* ---------- 顶部信息条 ---------- */
  .topbar{background:var(--brand-900);color:rgba(247,246,241,.82);font-size:13px;height:38px;display:flex;align-items:center}
  .topbar-inner{display:flex;align-items:center;justify-content:space-between;height:100%;gap:16px}
  .topbar-left,.topbar-right{display:flex;align-items:center;gap:12px;min-width:0}
  .topbar-domain{color:#fff;font-weight:600;letter-spacing:.02em}
  .topbar-sep{width:1px;height:14px;background:rgba(247,246,241,.28);display:inline-block;flex:none}
  .topbar-hint{color:rgba(247,246,241,.72)}
  .topbar-link{color:rgba(247,246,241,.85);font-size:13px}
  .topbar-link:hover{color:var(--lime)}

  /* ---------- 主导航 ---------- */
  .site-header{position:relative;z-index:70}
  .mainnav{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);border-bottom:1px solid var(--border);transition:box-shadow .2s ease-out,background .2s ease-out}
  .mainnav.is-scrolled{box-shadow:var(--shadow-card);background:#fff}
  .mainnav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
  .logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--brand-700);letter-spacing:.01em;white-space:nowrap}
  .logo:hover{color:var(--brand-700)}
  .logo-mark{width:8px;height:22px;background:var(--accent);border-radius:2px;display:inline-block;flex:none}
  .nav-list{display:flex;align-items:center;gap:26px;list-style:none;margin:0;padding:0}
  .nav-link{position:relative;display:inline-block;font-size:15px;font-weight:500;color:var(--text-2);padding:6px 0}
  .nav-link:hover{color:var(--brand-700)}
  .nav-link.is-active{color:var(--brand-700);font-weight:700}
  .nav-link.is-active::after{content:"";position:absolute;left:0;bottom:-6px;width:24px;height:3px;background:var(--accent);border-radius:2px}
  .nav-actions{display:flex;align-items:center;gap:12px}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 24px;border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;border:1px solid transparent;
    cursor:pointer;transition:background .18s ease-out,color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;
    text-align:center;line-height:1;
  }
  .btn-primary{background:var(--brand-700);color:#F7F6F1;border-color:var(--brand-700)}
  .btn-primary:hover{background:var(--brand-500);color:#fff;box-shadow:var(--shadow-float)}
  .btn-primary:active{background:var(--brand-900);transform:translateY(1px)}
  .btn-accent{background:var(--accent);color:var(--brand-900);border-color:var(--accent);font-weight:700}
  .btn-accent:hover{filter:brightness(1.04);color:var(--brand-900);transform:translateY(-1px);box-shadow:var(--shadow-float)}
  .btn-accent:active{transform:translateY(0);filter:brightness(.96)}
  .btn-outline{background:transparent;color:var(--brand-700);border-color:var(--brand-700)}
  .btn-outline:hover{background:var(--brand-700);color:#F7F6F1}
  .btn-ghost{background:transparent;color:#F7F6F1;border-color:rgba(247,246,241,.45)}
  .btn-ghost:hover{background:rgba(247,246,241,.14);color:#fff;border-color:rgba(247,246,241,.85)}
  .btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:8px}

  /* ---------- Hero ---------- */
  .cat-hero{
    position:relative;color:#F7F6F1;overflow:hidden;
    padding:76px 0 104px;
    background-image:
      linear-gradient(118deg, rgba(15,61,51,.96) 0%, rgba(8,36,30,.94) 52%, rgba(15,61,51,.88) 100%),
      url("/assets/images/backpic/back-2.webp");
    background-size:cover;background-position:center;
  }
  .cat-hero::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
    background-image:repeating-linear-gradient(90deg, rgba(205,242,74,.85) 0 8px, transparent 8px 32px);
    opacity:.7;
  }
  .cat-hero-inner{max-width:760px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:600;letter-spacing:.08em;
    color:var(--lime);margin:0 0 18px;
    border:1px solid rgba(205,242,74,.5);border-radius:999px;padding:5px 14px;
  }
  .cat-hero h1{font-size:46px;line-height:1.25;font-weight:800;margin:0 0 18px;color:#fff}
  .cat-hero-sub{font-size:18px;line-height:1.8;color:rgba(247,246,241,.86);margin:0;max-width:620px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
  .hero-facts{display:flex;flex-wrap:wrap;list-style:none;margin:40px 0 0;padding:24px 0 0;border-top:1px solid rgba(247,246,241,.2)}
  .hero-facts li{flex:1 1 150px;padding:0 22px;border-left:1px solid rgba(247,246,241,.18)}
  .hero-facts li:first-child{padding-left:0;border-left:0}
  .fact-num{display:block;font-size:28px;font-weight:800;color:#fff;line-height:1.2}
  .fact-num em{font-style:normal;font-size:16px;font-weight:600;margin-left:2px;color:rgba(247,246,241,.75)}
  .fact-label{display:block;font-size:13px;color:rgba(247,246,241,.7);margin-top:4px}

  /* ---------- 步骤条 ---------- */
  .stepbar-section{margin-top:-64px;padding-bottom:0}
  .stepbar-card{
    background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
    box-shadow:var(--shadow-card);padding:26px 20px;
    display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:6px;
  }
  .step{position:relative;padding:0 16px}
  .step + .step::before{
    content:"";position:absolute;left:-4px;top:18px;width:8px;height:1px;background:var(--border);
  }
  .step-num{
    width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;
    background:var(--brand-700);color:#F7F6F1;font-weight:700;font-size:15px;margin-bottom:12px;
  }
  .step-title{display:block;font-size:15px;font-weight:700;color:var(--text);margin-bottom:4px}
  .step-desc{display:block;font-size:13px;line-height:1.7;color:var(--text-3)}

  /* ---------- 通用板块 ---------- */
  .section{padding:92px 0}
  .section-tight{padding:72px 0}
  .section-alt{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
  .section-head{margin-bottom:44px;max-width:720px}
  .section-head h2{font-size:32px;line-height:1.3;font-weight:700;margin:0 0 14px;color:var(--text)}
  .section-head p{font-size:16.5px;color:var(--text-2);margin:0}
  .section-tag{
    display:inline-block;font-size:13px;font-weight:600;color:var(--brand-700);
    background:rgba(205,242,74,.35);border-radius:999px;padding:4px 12px;margin-bottom:14px;
  }

  /* ---------- 流程步骤块 ---------- */
  .stage-list{display:flex;flex-direction:column}
  .stage{
    display:grid;grid-template-columns:120px 1fr;gap:32px;
    padding:38px 0;border-top:1px solid var(--line);
  }
  .stage:first-child{border-top:0;padding-top:0}
  .stage:last-child{padding-bottom:0}
  .stage-num{
    font-size:36px;font-weight:800;line-height:1;color:var(--brand-700);
    letter-spacing:-.02em;opacity:.9;
  }
  .stage-body h3{font-size:21px;font-weight:700;margin:0 0 12px;color:var(--text)}
  .stage-body p{margin:0 0 16px;color:var(--text-2)}
  .stage-points{display:flex;flex-wrap:wrap;gap:10px;list-style:none;margin:0;padding:0}
  .stage-points li{
    font-size:13.5px;color:var(--brand-700);background:#fff;
    border:1px solid var(--border);border-radius:999px;padding:5px 14px;
  }

  /* ---------- 规格数据卡 ---------- */
  .spec-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
  .spec-card{
    background:#fff;border:1px solid var(--border);border-radius:var(--radius);
    padding:26px 24px;transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
  }
  .spec-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card);border-color:rgba(15,61,51,.4)}
  .spec-num{font-size:30px;font-weight:800;color:var(--brand-700);line-height:1.2;display:block}
  .spec-num em{font-style:normal;font-size:15px;font-weight:600;color:var(--text-3);margin-left:4px}
  .spec-name{display:block;font-size:15px;font-weight:700;margin:8px 0 10px;color:var(--text)}
  .spec-card p{font-size:14px;line-height:1.75;color:var(--text-2);margin:0}

  /* ---------- 图文 ---------- */
  .split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
  .split-media{position:relative}
  .split-media img{width:100%;height:360px;object-fit:cover;object-position:center;box-shadow:var(--shadow-card)}
  .split-media::after{
    content:"";position:absolute;right:-12px;bottom:-12px;width:96px;height:96px;
    background:var(--lime);border-radius:12px;z-index:-1;opacity:.9;
  }
  .media-caption{
    position:absolute;left:16px;bottom:16px;background:rgba(8,36,30,.86);color:#F7F6F1;
    font-size:12.5px;padding:6px 12px;border-radius:999px;
  }
  .split-body h2{font-size:30px;line-height:1.3;font-weight:700;margin:0 0 16px}
  .check-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
  .check-list li{position:relative;padding-left:26px;font-size:15.5px;color:var(--text-2)}
  .check-list li::before{
    content:"";position:absolute;left:0;top:11px;width:10px;height:10px;
    background:var(--accent);border-radius:2px;
  }

  /* ---------- FAQ ---------- */
  .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;align-items:start}
  .faq-item{
    background:#fff;border:1px solid var(--border);border-radius:var(--radius);
    overflow:hidden;transition:box-shadow .18s ease-out,border-color .18s ease-out;
  }
  .faq-item:hover{box-shadow:var(--shadow-card);border-color:rgba(15,61,51,.35)}
  .faq-item.is-open{box-shadow:inset 3px 0 0 var(--accent),var(--shadow-card)}
  .faq-q{
    width:100%;background:none;border:0;text-align:left;cursor:pointer;
    padding:20px 22px;font-size:17px;font-weight:600;color:var(--text);
    display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  }
  .faq-icon{
    flex:none;width:20px;height:20px;position:relative;margin-top:5px;
    transition:transform .22s ease-out;
  }
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;background:var(--brand-700);border-radius:2px;
  }
  .faq-icon::before{left:0;top:9px;width:20px;height:2px}
  .faq-icon::after{left:9px;top:0;width:2px;height:20px;transition:opacity .2s ease-out}
  .faq-item.is-open .faq-icon{transform:rotate(45deg)}
  .faq-item.is-open .faq-icon::after{opacity:0}
  .faq-a{padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--text-2)}

  /* ---------- CTA 带 ---------- */
  .cta-band{position:relative;background:var(--brand-700);color:#F7F6F1;overflow:hidden;padding:56px 0}
  .cta-band::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:repeating-linear-gradient(115deg, rgba(247,246,241,.07) 0 1px, transparent 1px 28px);
  }
  .cta-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:32px}
  .cta-title{font-size:26px;font-weight:700;margin:0 0 8px;color:#fff}
  .cta-text{margin:0;font-size:15px;color:rgba(247,246,241,.82);max-width:620px}
  .cta-actions{display:flex;gap:14px;flex:none}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--brand-900);color:rgba(247,246,241,.8);padding:64px 0 0}
  .footer-grid{display:grid;grid-template-columns:1.5fr 0.9fr 0.9fr 1.2fr;gap:36px}
  .footer-brand{display:inline-flex;align-items:center;gap:10px;color:#F7F6F1;font-weight:800;font-size:18px}
  .footer-brand:hover{color:#fff}
  .footer-desc{font-size:13px;line-height:1.9;color:rgba(247,246,241,.72);margin:16px 0 18px}
  .footer-contact{display:flex;flex-direction:column;gap:6px;font-size:13px;color:rgba(247,246,241,.72)}
  .footer-title{font-size:14px;font-weight:600;color:#F7F6F1;margin:0 0 16px}
  .footer-links{display:flex;flex-direction:column;gap:10px}
  .footer-links a{font-size:13px;color:rgba(247,246,241,.8)}
  .footer-links a:hover{color:var(--lime)}
  .footer-form{display:flex;flex-direction:column;gap:10px}
  .footer-form input{
    height:46px;padding:0 14px;border-radius:10px;font-size:14px;
    border:1px solid rgba(247,246,241,.24);background:rgba(255,255,255,.06);color:#F7F6F1;
    transition:border-color .18s ease-out,background .18s ease-out;
  }
  .footer-form input::placeholder{color:rgba(247,246,241,.55)}
  .footer-form input:focus{outline:none;border-color:var(--lime);background:rgba(255,255,255,.1)}
  .footer-form .btn{width:100%}
  .footer-note{font-size:12px;line-height:1.7;color:rgba(247,246,241,.55);margin:12px 0 0}
  .footer-bottom{
    margin-top:48px;border-top:1px solid rgba(247,246,241,.16);
    padding:20px 0 28px;display:flex;justify-content:space-between;gap:12px;
    font-size:13px;color:rgba(247,246,241,.6);
  }

  /* ---------- 移动抽屉 ---------- */
  .nav-toggle{
    display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:10px;
    background:#fff;cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-700);border-radius:2px}
  .drawer-mask{
    position:fixed;inset:0;background:rgba(8,36,30,.45);z-index:90;
    opacity:0;visibility:hidden;transition:opacity .26s ease-out,visibility .26s ease-out;
  }
  .drawer-mask.is-open{opacity:1;visibility:visible}
  .drawer{
    position:fixed;top:0;left:0;bottom:0;width:280px;max-width:86vw;background:#fff;z-index:100;
    transform:translateX(-100%);transition:transform .26s ease-out;
    display:flex;flex-direction:column;padding:18px 20px 28px;overflow-y:auto;
  }
  .drawer.is-open{transform:none}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line)}
  .drawer-close{
    width:36px;height:36px;border-radius:8px;border:1px solid var(--border);background:#fff;
    color:var(--text-2);font-size:13px;cursor:pointer;line-height:1;
  }
  .drawer-close:hover{border-color:var(--brand-700);color:var(--brand-700)}
  .drawer-nav{display:flex;flex-direction:column;margin-top:8px}
  .drawer-nav a{display:block;padding:14px 2px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line)}
  .drawer-nav a:hover,.drawer-nav a.is-active{color:var(--brand-700);font-weight:700}
  .drawer-cta{margin-top:22px}

  /* ---------- 响应式 ---------- */
  @media (max-width:1024px){
    .nav-list{display:none}
    .nav-toggle{display:flex}
    .nav-actions .btn-sm{display:none}
    .stepbar-card{grid-template-columns:repeat(5,minmax(180px,1fr));overflow-x:auto;gap:0;padding:22px 14px}
    .stepbar-section{margin-top:-52px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
    .cta-inner{flex-direction:column;align-items:flex-start}
    .spec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  }
  @media (max-width:768px){
    body{font-size:16px}
    .container{padding:0 18px}
    .topbar-hint,.topbar-left{display:none}
    .topbar-inner{justify-content:flex-end}
    .cat-hero{padding:56px 0 84px}
    .cat-hero h1{font-size:32px}
    .cat-hero-sub{font-size:16px}
    .hero-facts li{flex:1 1 45%;padding:0 16px;margin-bottom:14px}
    .hero-facts li:nth-child(odd){padding-left:0;border-left:0}
    .section{padding:64px 0}
    .section-tight{padding:52px 0}
    .section-head h2{font-size:25px}
    .stage{grid-template-columns:1fr;gap:12px;padding:30px 0}
    .stage-num{font-size:28px}
    .split{grid-template-columns:1fr;gap:28px}
    .split-media img{height:260px}
    .split-body h2{font-size:25px}
    .faq-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr 1fr}
    .footer-bottom{flex-direction:column;gap:8px}
    .cta-actions{width:100%;flex-direction:column}
    .cta-actions .btn{width:100%}
  }
  @media (max-width:520px){
    .cat-hero h1{font-size:30px}
    .hero-actions{flex-direction:column}
    .hero-actions .btn{width:100%}
    .spec-grid{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr}
    .stepbar-card{grid-template-columns:repeat(5,minmax(150px,1fr))}
    .fact-num{font-size:24px}
  }

/* roulang page: category3 */
:root{
  --brand-900:#0F3D33;
  --brand-950:#08241E;
  --brand-700:#14513F;
  --accent:#FF6A2B;
  --accent-dark:#E15519;
  --lime:#CDF24A;
  --sand:#F7F6F1;
  --white:#FFFFFF;
  --text:#141A18;
  --text-2:#4A5751;
  --text-3:#8A938E;
  --border:#E2E0D6;
  --line:#EDEBE3;
  --danger:#C0392B;
  --success:#1F7A4D;
  --radius-card:14px;
  --radius-lg:16px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(15,61,51,.06), 0 10px 28px -18px rgba(15,61,51,.35);
  --shadow-float:0 8px 20px -8px rgba(15,61,51,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body.site-body{
  margin:0;
  font-family:system-ui,-apple-system,"Noto Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out, border-color .18s ease-out, background-color .18s ease-out;}
button,input,select,textarea{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 顶部信息条 ---------- */
.site-header{position:sticky;top:0;z-index:60;}
.topbar{background:var(--brand-950);color:rgba(247,246,241,.88);font-size:13px;height:38px;display:flex;align-items:center;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:12px;min-width:0;}
.topbar-domain{letter-spacing:.02em;font-variant-numeric:tabular-nums;color:rgba(247,246,241,.72);}
.topbar-hint{color:rgba(247,246,241,.9);white-space:nowrap;}
.topbar-sep{width:1px;height:14px;background:rgba(247,246,241,.24);display:inline-block;}
.topbar-link{color:rgba(247,246,241,.88);white-space:nowrap;}
.topbar-link:hover{color:var(--lime);}

/* ---------- 主导航 ---------- */
.mainnav{background:rgba(255,255,255,.97);border-bottom:1px solid var(--border);height:68px;display:flex;align-items:center;transition:box-shadow .2s ease-out,background-color .2s ease-out;}
.mainnav.is-scrolled{box-shadow:var(--shadow-card);background:#fff;}
.mainnav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;}
.logo{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;color:var(--brand-900);letter-spacing:.01em;white-space:nowrap;}
.logo-mark{width:8px;height:8px;background:var(--accent);border-radius:2px;display:inline-block;flex:none;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-link{position:relative;display:block;padding:24px 14px;font-size:15px;font-weight:500;color:var(--text-2);}
.nav-link::after{content:"";position:absolute;left:14px;bottom:14px;width:0;height:3px;background:var(--accent);border-radius:2px;transition:width .2s ease-out;}
.nav-link:hover{color:var(--brand-900);}
.nav-link:hover::after{width:18px;}
.nav-link.is-active{color:var(--brand-900);font-weight:600;}
.nav-link.is-active::after{width:24px;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--border);background:#fff;border-radius:var(--radius-btn);align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;}
.nav-toggle span{display:block;width:20px;height:2px;background:var(--brand-900);border-radius:2px;}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--radius-btn);font-size:15.5px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:background-color .18s ease-out,color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out,border-color .18s ease-out;}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px;}
.btn-primary{background:var(--brand-900);color:var(--sand);}
.btn-primary:hover{background:var(--brand-700);box-shadow:var(--shadow-float);}
.btn-primary:active{background:var(--brand-950);transform:translateY(1px);}
.btn-outline{background:transparent;border-color:var(--brand-900);color:var(--brand-900);}
.btn-outline:hover{background:var(--brand-900);color:var(--sand);}
.btn-outline:active{background:var(--brand-950);border-color:var(--brand-950);color:var(--sand);}
.btn-accent{background:var(--accent);color:var(--brand-950);}
.btn-accent:hover{background:#FF7C43;box-shadow:var(--shadow-float);transform:translateY(-1px);}
.btn-accent:active{transform:translateY(0);background:var(--accent-dark);color:#fff;}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

/* ---------- 通栏 banner ---------- */
.banner{position:relative;color:var(--sand);background-color:var(--brand-950);background-image:linear-gradient(115deg,rgba(8,36,30,.94) 0%,rgba(15,61,51,.82) 52%,rgba(15,61,51,.62) 100%),url("/assets/images/backpic/back-2.webp");background-size:cover;background-position:center 32%;}
.banner-inner{padding:84px 0 72px;max-width:840px;}
.banner-crumb{font-size:13px;color:rgba(247,246,241,.72);margin-bottom:22px;display:flex;align-items:center;gap:8px;flex-wrap:wrap;}
.banner-crumb a:hover{color:var(--lime);}
.banner-crumb .crumb-sep{opacity:.55;}
.banner-crumb .crumb-now{color:var(--sand);}
.banner-title{font-size:46px;line-height:1.25;font-weight:800;letter-spacing:.01em;}
.banner-sub{margin-top:18px;font-size:18px;line-height:1.8;color:rgba(247,246,241,.9);max-width:640px;}
.banner-actions{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap;}
.banner-actions .btn-outline{border-color:rgba(247,246,241,.55);color:var(--sand);}
.banner-actions .btn-outline:hover{background:rgba(247,246,241,.12);border-color:var(--sand);color:var(--sand);}
.banner-stats{margin-top:44px;display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid rgba(247,246,241,.22);padding-top:26px;}
.banner-stat{padding-right:22px;border-right:1px solid rgba(247,246,241,.16);}
.banner-stat:last-child{border-right:none;}
.banner-stat b{display:block;font-size:28px;font-weight:800;color:var(--lime);line-height:1.2;}
.banner-stat span{display:block;margin-top:6px;font-size:13px;color:rgba(247,246,241,.78);}
.ruler{height:2px;background-image:repeating-linear-gradient(to right,var(--accent) 0 2px,transparent 2px 24px);background-color:rgba(247,246,241,.28);opacity:.75;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-tight{padding:52px 0;}
.section-alt{background:#fff;}
.section-head{max-width:760px;margin-bottom:44px;}
.sec-index{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--accent);font-variant-numeric:tabular-nums;margin-bottom:12px;}
.section-title{font-size:31px;line-height:1.3;font-weight:700;color:var(--brand-900);}
.section-desc{margin-top:14px;font-size:16.5px;color:var(--text-2);}

/* ---------- 交替图文 ---------- */
.zigzag{background:#fff;border-top:1px solid var(--line);}
.zig-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:64px 0;border-bottom:1px solid var(--line);}
.zig-row:last-child{border-bottom:none;}
.zig-row.reverse .zig-media{order:2;}
.zig-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);}
.zig-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.zig-media .media-tag{position:absolute;top:14px;left:14px;background:var(--brand-900);color:var(--sand);font-size:12px;padding:5px 12px;border-radius:999px;letter-spacing:.04em;}
.zig-media .media-corner{position:absolute;right:0;bottom:0;width:56px;height:56px;background:var(--lime);opacity:.9;}
.zig-no{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;color:var(--text-3);letter-spacing:.12em;font-variant-numeric:tabular-nums;}
.zig-no::before{content:"";width:26px;height:2px;background:var(--accent);display:inline-block;}
.zig-title{margin-top:14px;font-size:26px;line-height:1.35;font-weight:700;color:var(--brand-900);}
.zig-text{margin-top:16px;color:var(--text-2);}
.zig-list{margin-top:20px;display:grid;gap:10px;}
.zig-list li{position:relative;padding-left:20px;font-size:15.5px;color:var(--text-2);}
.zig-list li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;background:var(--lime);border:1px solid var(--brand-900);border-radius:2px;}
.zig-caption{margin-top:14px;font-size:13px;color:var(--text-3);}

/* ---------- 课程清单行 ---------- */
.table-list{border-top:1px solid var(--border);}
.row-item{display:grid;grid-template-columns:64px 1.4fr 1fr 1fr auto;gap:20px;align-items:center;padding:22px 12px;border-bottom:1px solid var(--line);transition:background-color .18s ease-out,transform .18s ease-out;}
.row-item:hover{background:#FCFBF7;transform:translateX(2px);}
.row-item .row-no{font-size:15px;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;}
.row-item .row-name{font-size:18px;font-weight:700;color:var(--brand-900);}
.row-item .row-name small{display:block;font-size:13.5px;font-weight:400;color:var(--text-3);margin-top:4px;}
.row-item .row-meta{font-size:14.5px;color:var(--text-2);}
.row-item .row-price{font-size:16px;font-weight:700;color:var(--brand-900);font-variant-numeric:tabular-nums;}
.tag{display:inline-block;padding:4px 12px;border-radius:999px;background:rgba(205,242,74,.28);color:#1B4A3E;font-size:13px;line-height:1.5;}
.row-item .row-action{font-size:14.5px;font-weight:600;color:var(--brand-900);border-bottom:2px solid transparent;padding-bottom:2px;}
.row-item .row-action:hover{color:var(--accent);border-color:var(--accent);}

/* ---------- 表单 ---------- */
.form-wrap{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);padding:40px;display:grid;grid-template-columns:1fr 1.15fr;gap:48px;}
.form-intro h2{font-size:28px;line-height:1.35;font-weight:700;color:var(--brand-900);}
.form-intro p{margin-top:14px;color:var(--text-2);font-size:15.5px;}
.form-points{margin-top:26px;display:grid;gap:14px;}
.form-points li{display:flex;gap:12px;font-size:15px;color:var(--text-2);}
.form-points li b{color:var(--brand-900);font-variant-numeric:tabular-nums;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;font-weight:500;color:var(--text-2);}
.field input,.field select,.field textarea{height:46px;padding:0 14px;border:1px solid var(--border);border-radius:var(--radius-btn);background:#FCFBF7;color:var(--text);transition:border-color .18s ease-out,background-color .18s ease-out;}
.field textarea{height:auto;min-height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.field select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--text-3) 50%),linear-gradient(135deg,var(--text-3) 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 15px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:40px;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand-900);background:#fff;box-shadow:inset 0 0 0 1px var(--brand-900);}
.form-foot{grid-column:1 / -1;display:flex;align-items:center;gap:18px;flex-wrap:wrap;}
.form-foot .btn{min-width:180px;}
.form-note{font-size:13px;color:var(--text-3);}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:start;}
.faq-col{display:grid;gap:12px;}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);position:relative;overflow:hidden;transition:border-color .18s ease-out,box-shadow .18s ease-out;}
.faq-item:hover{border-color:rgba(15,61,51,.4);box-shadow:var(--shadow-card);}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:transparent;transition:background-color .18s ease-out;}
.faq-item.open::before{background:var(--accent);}
.faq-q{width:100%;background:none;border:none;text-align:left;padding:20px 22px;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;cursor:pointer;font-size:17px;font-weight:600;color:var(--brand-900);line-height:1.6;}
.faq-icon{flex:none;width:22px;height:22px;border:1px solid var(--border);border-radius:6px;position:relative;margin-top:3px;transition:transform .2s ease-out,border-color .2s ease-out;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand-900);}
.faq-icon::before{left:5px;right:5px;top:10px;height:2px;}
.faq-icon::after{top:5px;bottom:5px;left:10px;width:2px;transition:opacity .2s ease-out;}
.faq-item.open .faq-icon{transform:rotate(180deg);border-color:var(--accent);}
.faq-item.open .faq-icon::after{opacity:0;}
.faq-a{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--text-2);display:none;}
.faq-item.open .faq-a{display:block;}

/* ---------- CTA 带 ---------- */
.cta-band{background-color:var(--brand-900);background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.06) 0 2px,transparent 2px 26px);color:var(--sand);padding:56px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;}
.cta-inner h2{font-size:27px;line-height:1.4;font-weight:700;}
.cta-inner p{margin-top:10px;font-size:15px;color:rgba(247,246,241,.82);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-950);color:rgba(247,246,241,.8);padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--sand);}
.footer-desc{margin-top:16px;font-size:13.5px;line-height:1.85;color:rgba(247,246,241,.72);max-width:320px;}
.footer-contact{margin-top:18px;display:grid;gap:6px;font-size:13px;color:rgba(247,246,241,.72);font-variant-numeric:tabular-nums;}
.footer-title{font-size:14px;font-weight:600;color:var(--sand);margin-bottom:16px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:13px;color:rgba(247,246,241,.8);}
.footer-links a:hover{color:var(--lime);}
.footer-form{display:grid;gap:10px;}
.footer-form input{height:42px;padding:0 14px;border-radius:var(--radius-btn);border:1px solid rgba(247,246,241,.24);background:rgba(255,255,255,.06);color:var(--sand);font-size:14px;}
.footer-form input::placeholder{color:rgba(247,246,241,.5);}
.footer-form input:focus{outline:none;border-color:var(--lime);background:rgba(255,255,255,.1);}
.footer-form .btn{width:100%;height:44px;font-size:14.5px;}
.footer-note{margin-top:12px;font-size:12.5px;color:rgba(247,246,241,.58);line-height:1.7;}
.footer-bottom{margin-top:48px;padding-top:22px;border-top:1px solid rgba(247,246,241,.16);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(247,246,241,.62);font-variant-numeric:tabular-nums;}

/* ---------- 移动抽屉 ---------- */
.drawer-overlay{position:fixed;inset:0;background:rgba(8,36,30,.45);opacity:0;visibility:hidden;transition:opacity .22s ease-out,visibility .22s;z-index:70;}
.drawer-overlay.show{opacity:1;visibility:visible;}
.mobile-drawer{position:fixed;top:0;left:0;bottom:0;width:280px;max-width:84vw;background:#fff;z-index:80;transform:translateX(-100%);transition:transform .26s ease-out;display:flex;flex-direction:column;box-shadow:var(--shadow-float);}
.mobile-drawer.show{transform:translateX(0);}
.drawer-head{padding:18px 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-head .logo{font-size:17px;}
.drawer-close{width:36px;height:36px;border:1px solid var(--border);background:#fff;border-radius:var(--radius-btn);cursor:pointer;line-height:1;font-size:18px;color:var(--brand-900);}
.drawer-nav{padding:8px 0;overflow-y:auto;}
.drawer-nav a{display:block;padding:15px 20px;font-size:15.5px;color:var(--text-2);border-bottom:1px solid var(--line);}
.drawer-nav a.is-active{color:var(--brand-900);font-weight:600;box-shadow:inset 3px 0 0 var(--accent);}
.drawer-nav a:hover{background:#FCFBF7;color:var(--brand-900);}
.drawer-foot{padding:18px 20px;border-top:1px solid var(--line);display:grid;gap:12px;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-list{display:none;}
  .nav-toggle{display:flex;}
  .nav-actions .btn-sm{display:none;}
  .banner-title{font-size:36px;}
  .form-wrap{grid-template-columns:1fr;gap:32px;padding:32px;}
  .zig-row{grid-template-columns:1fr;gap:28px;padding:48px 0;}
  .zig-row.reverse .zig-media{order:0;}
  .faq-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .section-tight{padding:36px 0;}
  .topbar-hint,.topbar-left{display:none;}
  .topbar-inner{justify-content:flex-end;}
  .banner-inner{padding:56px 0 48px;}
  .banner-title{font-size:32px;}
  .banner-sub{font-size:16px;}
  .banner-stats{grid-template-columns:1fr 1fr;gap:22px 0;padding-top:22px;}
  .banner-stat{border-right:none;padding-right:0;}
  .banner-stat:nth-child(odd){border-right:1px solid rgba(247,246,241,.16);}
  .section-title{font-size:26px;}
  .zig-title{font-size:22px;}
  .row-item{grid-template-columns:44px 1fr;gap:12px;}
  .row-item .row-meta,.row-item .row-price{grid-column:2;}
  .row-item .row-action{grid-column:2;}
  .form-grid{grid-template-columns:1fr;}
  .form-foot .btn{width:100%;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-inner .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .banner-actions{flex-direction:column;}
  .banner-actions .btn{width:100%;}
  .banner-title{font-size:28px;}
  .banner-stats{grid-template-columns:1fr 1fr;}
  .form-wrap{padding:22px;}
}

/* roulang page: category4 */
:root{
  --brand:#0F3D33;
  --brand-dark:#08241E;
  --brand-hover:#14513F;
  --accent:#FF6A2B;
  --lime:#CDF24A;
  --sand:#F7F6F1;
  --white:#FFFFFF;
  --ink:#141A18;
  --ink-2:#4A5751;
  --ink-3:#8A938E;
  --line:#E2E0D6;
  --line-soft:#EDEBE3;
  --error:#C0392B;
  --success:#1F7A4D;
  --radius-big:16px;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-card:0 1px 2px rgba(15,61,51,.06), 0 10px 28px -18px rgba(15,61,51,.35);
  --shadow-float:0 8px 20px -8px rgba(15,61,51,.28);
  --container:1200px;
  --font: system-ui, -apple-system, "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--sand);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--brand);text-decoration:none;}
a:hover{color:var(--accent);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
h1{font-size:46px;line-height:1.25;font-weight:800;letter-spacing:-.4px;}
h2{font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.2px;}
h3{font-size:21px;line-height:1.4;font-weight:700;}
h4{font-size:17px;line-height:1.5;font-weight:600;}
p{font-size:16.5px;line-height:1.85;}
.num,time,.metric{font-variant-numeric:tabular-nums;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 通用组件 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:all .18s ease-out;white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.btn-primary{background:var(--brand);color:var(--sand);}
.btn-primary:hover{background:var(--brand-hover);color:var(--sand);box-shadow:var(--shadow-float);}
.btn-primary:active{background:var(--brand-dark);transform:translateY(1px);}
.btn-accent{background:var(--accent);color:var(--brand-dark);}
.btn-accent:hover{background:#ff7d45;color:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-float);}
.btn-accent:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand);color:var(--sand);}
.btn-ghost:active{background:var(--brand-dark);color:var(--sand);transform:translateY(1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

.link-underline{
  color:var(--brand);font-weight:600;
  text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px;
  transition:color .18s ease-out;
}
.link-underline:hover{color:var(--accent);text-decoration-color:var(--accent);}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 12px;border-radius:999px;
  background:#EAF3EE;color:var(--brand);
  font-size:12px;font-weight:600;line-height:1.7;
}
.badge-outline{background:transparent;border:1px dashed var(--lime);color:var(--brand);}
.badge-accent{background:var(--accent);color:#fff;}

.tag{
  display:inline-block;padding:2px 10px;border-radius:999px;
  background:rgba(205,242,74,.28);color:#28430A;
  font-size:12px;font-weight:600;
}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:600;color:var(--accent);letter-spacing:.08em;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);display:inline-block;}

.sec-index{
  font-variant-numeric:tabular-nums;font-size:13px;font-weight:700;
  color:var(--brand);letter-spacing:.12em;
}
.rule-tick{
  height:2px;background:repeating-linear-gradient(to right,var(--line) 0 24px,transparent 24px 32px);
  border-top:0;margin:0;
}
.panel{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-big);
  box-shadow:var(--shadow-card);
}
.panel-soft{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--brand-dark);color:rgba(247,246,241,.85);font-size:13px;height:38px;display:flex;align-items:center;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;width:100%;gap:16px;}
.topbar-left,.topbar-right{display:flex;align-items:center;gap:12px;}
.topbar-domain{color:rgba(247,246,241,.95);font-weight:600;letter-spacing:.02em;}
.topbar-hint{color:rgba(247,246,241,.62);}
.topbar-sep{width:1px;height:14px;background:rgba(247,246,241,.24);display:inline-block;}
.topbar-link{color:rgba(247,246,241,.85);font-size:13px;}
.topbar-link:hover{color:var(--lime);}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:60;}
.mainnav{
  background:rgba(247,246,241,.96);border-bottom:1px solid var(--line);
  backdrop-filter:saturate(140%) blur(6px);height:68px;display:flex;align-items:center;
  transition:box-shadow .2s ease-out, background .2s ease-out;
}
.mainnav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;width:100%;}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--brand);letter-spacing:-.2px;}
.logo:hover{color:var(--brand);}
.logo-mark{width:10px;height:10px;border-radius:2px;background:var(--accent);display:inline-block;flex:0 0 auto;}
.nav-list{display:flex;align-items:center;gap:26px;}
.nav-link{
  position:relative;display:inline-block;padding:22px 0 20px;
  font-size:15px;font-weight:500;color:var(--ink-2);
}
.nav-link:hover{color:var(--brand);}
.nav-link.is-active{color:var(--brand);font-weight:700;}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;bottom:12px;width:24px;height:3px;border-radius:2px;background:var(--accent);
}
.nav-link:focus-visible{outline:2px solid var(--accent);outline-offset:4px;border-radius:4px;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:var(--white);cursor:pointer;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand);border-radius:2px;}
.nav-toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(8,36,30,.45);opacity:0;visibility:hidden;
  transition:opacity .22s ease-out,visibility .22s ease-out;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;left:0;height:100%;width:280px;max-width:86vw;background:var(--white);
  transform:translateX(-100%);transition:transform .26s ease-out;z-index:90;
  padding:20px 0;overflow-y:auto;box-shadow:var(--shadow-float);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:0 20px 16px;border-bottom:1px solid var(--line-soft);}
.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--brand);font-size:16px;}
.drawer-close{width:36px;height:36px;border:1px solid var(--line);border-radius:9px;background:var(--white);cursor:pointer;color:var(--brand);font-size:16px;line-height:1;}
.drawer-link{
  display:block;padding:15px 20px;font-size:15px;font-weight:500;color:var(--ink-2);
  border-bottom:1px solid var(--line-soft);
}
.drawer-link:hover{background:var(--sand);color:var(--brand);}
.drawer-link.is-active{color:var(--brand);font-weight:700;border-left:3px solid var(--accent);padding-left:17px;}
.drawer-cta{padding:18px 20px;}

/* ============ 页面横幅 ============ */
.page-hero{
  position:relative;background:var(--brand-dark);color:var(--sand);overflow:hidden;
  padding:74px 0 62px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(115deg, rgba(8,36,30,.94) 0%, rgba(15,61,51,.88) 55%, rgba(15,61,51,.78) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{font-size:13px;color:rgba(247,246,241,.72);display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:22px;}
.breadcrumb a{color:rgba(247,246,241,.72);}
.breadcrumb a:hover{color:var(--lime);}
.breadcrumb .current{color:var(--sand);font-weight:600;}
.breadcrumb .sep{opacity:.5;}
.hero-tagline{max-width:720px;margin-top:18px;font-size:17px;line-height:1.9;color:rgba(247,246,241,.86);}
.hero-meta{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.hero-chip{
  border:1px solid rgba(247,246,241,.32);border-radius:999px;padding:6px 16px;
  font-size:13px;color:rgba(247,246,241,.92);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.page-hero .btn-ghost{color:var(--sand);border-color:rgba(247,246,241,.5);}
.page-hero .btn-ghost:hover{background:var(--sand);color:var(--brand);}
.hero-ticks{margin-top:42px;height:2px;background:repeating-linear-gradient(to right,rgba(205,242,74,.5) 0 24px,transparent 24px 32px);}

/* ============ 主体栅格 ============ */
.shell{display:grid;grid-template-columns:8fr 4fr;gap:28px;align-items:start;}
.section{padding:48px 0 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.section-head .eyebrow{margin-bottom:10px;}
.section-desc{color:var(--ink-2);max-width:640px;margin-top:12px;}

/* 主内容块 */
.block{margin-bottom:44px;}
.block-head{display:flex;gap:14px;align-items:baseline;margin-bottom:18px;}
.block-head h2{font-size:28px;}
.block-head .sec-index{padding-top:6px;}

/* 会员等级主卡 */
.tier-feature{
  position:relative;border:1px solid var(--line);border-radius:var(--radius-big);
  background:var(--white);box-shadow:var(--shadow-card);padding:0 0 30px;overflow:hidden;
}
.tier-feature::before{content:"";display:block;height:3px;background:var(--accent);}
.tier-feature-inner{padding:28px 30px 0;}
.tier-feature-top{display:flex;flex-wrap:wrap;align-items:center;gap:14px;}
.tier-price{font-variant-numeric:tabular-nums;font-size:34px;font-weight:800;color:var(--brand);line-height:1.1;}
.tier-price small{font-size:14px;font-weight:500;color:var(--ink-3);margin-left:6px;}
.tier-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px 26px;margin-top:24px;}
.tier-item{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--ink-2);line-height:1.75;}
.tier-item::before{
  content:"";flex:0 0 auto;width:8px;height:8px;margin-top:9px;border-radius:2px;background:var(--lime);
}
.tier-feature .btn{margin:26px 30px 0;}

/* 等级清单行 */
.tier-rows{border-top:1px solid var(--line);margin-top:24px;}
.tier-row{
  display:grid;grid-template-columns:64px 1fr auto;gap:20px;align-items:center;
  padding:22px 4px;border-bottom:1px solid var(--line-soft);
}
.tier-row .idx{font-variant-numeric:tabular-nums;font-size:14px;font-weight:700;color:var(--ink-3);}
.tier-row h3{font-size:18px;margin-bottom:6px;}
.tier-row p{font-size:14.5px;color:var(--ink-2);line-height:1.75;margin:0;}
.tier-row .price{font-variant-numeric:tabular-nums;font-weight:700;color:var(--brand);font-size:16px;white-space:nowrap;}

/* 权益清单 */
.benefit-list{border-top:1px solid var(--line);}
.benefit-item{
  display:grid;grid-template-columns:56px 1fr;gap:18px;
  padding:22px 4px;border-bottom:1px solid var(--line-soft);
  transition:background .18s ease-out;
}
.benefit-item:hover{background:rgba(255,255,255,.7);}
.benefit-num{
  font-variant-numeric:tabular-nums;font-size:15px;font-weight:700;color:var(--brand);
  border-left:3px solid var(--lime);padding-left:12px;line-height:1.6;
}
.benefit-body h4{margin-bottom:6px;}
.benefit-body p{font-size:14.8px;color:var(--ink-2);line-height:1.8;margin:0 0 8px;}

/* 卡片组 */
.card-duo{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.content-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;height:100%;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.content-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card);border-color:rgba(15,61,51,.4);}
.content-card .thumb{position:relative;}
.content-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
.content-card .thumb .badge{position:absolute;left:14px;bottom:14px;background:var(--brand);color:var(--sand);}
.content-card .body{padding:20px;}
.content-card h3{font-size:18px;margin-bottom:8px;}
.content-card p{font-size:14.5px;color:var(--ink-2);line-height:1.75;}
.content-card time{font-size:13px;color:var(--ink-3);display:block;margin-bottom:6px;}
.content-card .arrow{
  margin-left:auto;font-size:13px;font-weight:700;color:var(--brand);
  display:inline-flex;align-items:center;gap:4px;transition:transform .18s ease-out;
}
.content-card a:hover .arrow{transform:translateX(4px);}

/* 流程步骤 */
.step-strip{
  display:grid;grid-template-columns:repeat(5,1fr);gap:0;
  border-top:2px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--white);border-radius:var(--radius-card);overflow:hidden;
}
.step-cell{
  padding:20px 16px;border-right:1px solid var(--line-soft);position:relative;
}
.step-cell:last-child{border-right:0;}
.step-cell .n{font-variant-numeric:tabular-nums;font-size:14px;font-weight:700;color:var(--ink-3);display:block;margin-bottom:8px;}
.step-cell.is-current{background:var(--brand);}
.step-cell.is-current .n,.step-cell.is-current h4{color:var(--sand);}
.step-cell h4{font-size:15px;}
.step-blocks{margin-top:24px;border-top:1px solid var(--line);}
.step-block{
  display:grid;grid-template-columns:64px 1fr;gap:18px;
  padding:24px 4px;border-bottom:1px solid var(--line-soft);
}
.step-block .n{font-variant-numeric:tabular-nums;font-size:15px;font-weight:700;color:var(--accent);}
.step-block p{font-size:14.8px;color:var(--ink-2);line-height:1.8;margin-top:8px;}
.step-block ul{margin-top:10px;display:grid;gap:6px;}
.step-block ul li{font-size:14.5px;color:var(--ink-2);padding-left:16px;position:relative;}
.step-block ul li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:1px;background:var(--brand);opacity:.5;}

/* FAQ */
.faq{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:start;}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.faq-item.is-open{border-color:rgba(15,61,51,.4);box-shadow:var(--shadow-card);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:18px 20px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q:focus-visible{outline:2px solid var(--accent);outline-offset:-2px;}
.faq-q .chev{flex:0 0 auto;width:18px;height:18px;position:relative;transition:transform .2s ease-out;}
.faq-q .chev::before,.faq-q .chev::after{
  content:"";position:absolute;top:8px;width:10px;height:2px;background:var(--brand);border-radius:2px;
}
.faq-q .chev::before{left:0;transform:rotate(45deg);}
.faq-q .chev::after{right:0;transform:rotate(-45deg);}
.faq-item.is-open .chev{transform:rotate(180deg);}
.faq-a{padding:0 20px 18px;border-left:3px solid transparent;}
.faq-item.is-open .faq-a{border-left-color:var(--accent);}
.faq-a p{font-size:15px;line-height:1.8;color:var(--ink-2);margin:0;}
.faq-a[hidden]{display:none;}

/* 相关分类聚合 */
.rel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.rel-card{
  display:flex;align-items:center;gap:14px;padding:18px 20px;
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card);border-color:rgba(15,61,51,.4);color:var(--brand);}
.rel-card .dot{width:10px;height:10px;border-radius:2px;background:var(--lime);flex:0 0 auto;}
.rel-card h4{font-size:16px;margin-bottom:2px;}
.rel-card p{font-size:13.5px;color:var(--ink-3);line-height:1.6;margin:0;}

/* 侧栏 */
.sidebar{position:sticky;top:96px;display:grid;gap:18px;}
.side-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-card);}
.side-title{font-size:15px;font-weight:700;color:var(--brand);margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-title::before{content:"";width:6px;height:14px;border-radius:2px;background:var(--accent);display:inline-block;}
.toc{display:grid;gap:2px;}
.toc-link{
  display:block;padding:10px 12px;border-left:2px solid transparent;
  font-size:14.5px;color:var(--ink-2);border-radius:0 8px 8px 0;
}
.toc-link:hover{background:var(--sand);color:var(--brand);}
.toc-link.is-active{border-left-color:var(--accent);background:var(--sand);color:var(--brand);font-weight:700;}
.side-links{display:grid;gap:12px;}
.side-link{
  display:block;padding:12px 14px;border:1px solid var(--line-soft);border-radius:var(--radius-btn);
  transition:border-color .18s ease-out,background .18s ease-out;
}
.side-link:hover{border-color:rgba(15,61,51,.4);background:var(--sand);}
.side-link h4{font-size:14.5px;margin-bottom:2px;}
.side-link span{font-size:13px;color:var(--ink-3);}
.side-faq{display:grid;gap:10px;}
.side-faq .faq-q{padding:13px 14px;font-size:14.5px;}
.side-faq .faq-a{padding:0 14px 14px;}
.side-faq .faq-a p{font-size:13.8px;}
.side-note{font-size:13px;color:var(--ink-3);line-height:1.7;margin-top:12px;}

/* CTA 带 */
.cta-band{
  position:relative;background:var(--brand);border-radius:var(--radius-big);
  padding:56px 40px;margin:48px 0 0;color:var(--sand);overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg, rgba(205,242,74,.10) 0 2px, transparent 2px 26px);
}
.cta-band-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.cta-band h2{font-size:27px;color:#fff;}
.cta-band p{font-size:15px;color:rgba(247,246,241,.85);margin-top:10px;max-width:620px;}

/* 页脚 */
.site-footer{background:var(--brand-dark);color:rgba(247,246,241,.8);margin-top:64px;padding:58px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:800;color:var(--sand);}
.footer-brand:hover{color:var(--lime);}
.footer-desc{font-size:13.5px;line-height:1.85;color:rgba(247,246,241,.7);margin:14px 0 16px;max-width:320px;}
.footer-contact{display:grid;gap:6px;font-size:13.5px;color:rgba(247,246,241,.78);}
.footer-title{font-size:14px;font-weight:600;color:var(--sand);margin-bottom:16px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:13.5px;color:rgba(247,246,241,.8);}
.footer-links a:hover{color:var(--lime);}
.footer-form{display:grid;gap:10px;}
.footer-form input{
  height:46px;padding:0 14px;border-radius:var(--radius-btn);
  border:1px solid rgba(247,246,241,.24);background:rgba(247,246,241,.06);
  color:var(--sand);font-size:14px;
}
.footer-form input::placeholder{color:rgba(247,246,241,.5);}
.footer-form input:focus{outline:none;border-color:var(--lime);}
.footer-note{font-size:12.5px;color:rgba(247,246,241,.55);line-height:1.7;margin-top:12px;}
.footer-bottom{
  border-top:1px solid rgba(247,246,241,.16);padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,246,241,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-list,.nav-actions .btn{display:none;}
  .nav-toggle{display:inline-flex;}
  .shell{grid-template-columns:1fr;}
  .sidebar{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  h1{font-size:34px;}
  h2{font-size:27px;}
  .step-strip{grid-template-columns:1fr 1fr;border-radius:var(--radius-card);}
  .step-cell{border-bottom:1px solid var(--line-soft);}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  h3{font-size:19px;}
  p{font-size:15.6px;}
  .page-hero{padding:52px 0 44px;}
  .section{padding:38px 0 0;}
  .card-duo,.faq,.rel-grid{grid-template-columns:1fr;}
  .tier-grid{grid-template-columns:1fr;}
  .tier-row{grid-template-columns:44px 1fr;gap:12px;}
  .tier-row .price{grid-column:2;}
  .benefit-item,.step-block{grid-template-columns:44px 1fr;gap:12px;}
  .cta-band{padding:38px 22px;border-radius:var(--radius-card);}
  .cta-band-inner{flex-direction:column;align-items:flex-start;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .topbar-hint,.topbar-left .topbar-sep,.topbar-domain{display:none;}
  .topbar-inner{justify-content:flex-end;}
}
@media (max-width:520px){
  .hero-actions,.hero-meta{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .step-strip{grid-template-columns:1fr;}
  .cta-band h2{font-size:22px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}