/* roulang page: index */
:root{
  --c-bg:#F5F7F2;
  --c-bg-dark:#0B1410;
  --c-surface:#FFFFFF;
  --c-surface-2:#EDF2E9;
  --c-surface-dark:#13201A;
  --c-primary:#86D91B;
  --c-primary-hover:#74C412;
  --c-primary-active:#5FA80E;
  --c-primary-soft:#EAF7D6;
  --c-primary-ink:#10230A;
  --c-accent:#FF9A2E;
  --c-teal:#12B3A6;
  --c-text:#16201B;
  --c-text-muted:#5E6B63;
  --c-border:#DCE3D8;
  --c-danger:#D93A3A;
  --r-sm:10px; --r-md:14px; --r-lg:20px; --r-xl:28px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,20,16,.06);
  --sh-2:0 6px 18px rgba(11,20,16,.08);
  --sh-3:0 14px 38px rgba(11,20,16,.14);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button,input{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}
@media(min-width:1440px){.container{max-width:1280px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(11,20,16,.9);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.09)}
.header-inner{display:flex;align-items:center;gap:16px;height:74px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:19px;letter-spacing:-.01em;white-space:nowrap}
.brand-mark{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(135deg,#86D91B 0%,#12B3A6 100%);box-shadow:0 4px 14px rgba(134,217,27,.3)}
.nav-panel{display:none;align-items:center;gap:4px;background:var(--c-surface);border-radius:var(--r-lg);padding:6px;box-shadow:0 8px 22px rgba(0,0,0,.22);margin-left:auto}
@media(min-width:1080px){.nav-panel{display:flex}}
.nav-chip{position:relative;display:flex;align-items:center;gap:6px;min-height:44px;padding:9px 14px;border-radius:var(--r-sm);font-size:14px;font-weight:500;color:var(--c-text);transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease)}
.nav-chip:hover{background:var(--c-surface-2);transform:translateY(-2px)}
.nav-chip.active{background:var(--c-primary-soft);color:var(--c-primary-active);font-weight:650;padding-left:18px}
.nav-chip.active::before{content:"";position:absolute;left:6px;top:12px;bottom:12px;width:3px;border-radius:2px;background:var(--c-primary)}
.header-cta{display:none}
@media(min-width:1080px){.header-cta{display:block;margin-left:12px}}
.menu-toggle{margin-left:auto;display:grid;place-items:center;width:46px;height:46px;border-radius:var(--r-md);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:#fff;cursor:pointer}
@media(min-width:1080px){.menu-toggle{display:none}}
.menu-toggle span{display:block;width:19px;height:2px;background:#fff;border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:19px;height:2px;background:#fff;border-radius:2px}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.drawer{position:fixed;inset:0;z-index:80;background:var(--c-bg-dark);padding:22px 20px 28px;display:none;flex-direction:column;gap:10px;overflow-y:auto}
.drawer.open{display:flex}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer-close{width:44px;height:44px;border-radius:var(--r-md);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:#fff;font-size:20px;cursor:pointer}
.drawer-link{display:flex;align-items:center;justify-content:space-between;min-height:54px;padding:0 18px;border-radius:var(--r-md);background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);color:#fff;font-size:15.5px}
.drawer-link.active{background:var(--c-primary-soft);color:var(--c-primary-ink);font-weight:650}
.drawer-cta{margin-top:auto}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 26px;border-radius:var(--r-pill);font-size:15.5px;font-weight:650;border:1px solid transparent;cursor:pointer;transition:background .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease)}
.btn-primary{background:var(--c-primary);color:var(--c-primary-ink)}
.btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{background:var(--c-primary-active);transform:translateY(0)}
.btn-outline{background:transparent;border-color:var(--c-border);color:var(--c-text)}
.btn-outline:hover{border-color:var(--c-primary);color:var(--c-primary-active);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0)}
.btn-ghost-dark{background:transparent;border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost-dark:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px)}
.btn-sm{min-height:44px;padding:0 20px;font-size:14.5px}
.btn-lg{min-height:54px;padding:0 34px;font-size:16.5px}
@media(max-width:520px){.btn{width:100%}}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--c-bg-dark);color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(134,217,27,.14) 1px,transparent 1px);background-size:26px 26px;opacity:.35;pointer-events:none}
.hero::after{content:"";position:absolute;right:-140px;top:-120px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(18,179,166,.28),transparent 65%);pointer-events:none}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:44px;padding:60px 0 72px}
@media(min-width:1024px){.hero-grid{grid-template-columns:1.12fr .88fr;gap:56px;align-items:center;min-height:540px;padding:76px 0 92px}}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;line-height:1.6;letter-spacing:.02em;padding:7px 15px;border-radius:var(--r-pill);border:1px solid rgba(134,217,27,.5);color:var(--c-primary);background:rgba(134,217,27,.08)}
.hero-title{font-size:clamp(30px,4.4vw,54px);line-height:1.18;font-weight:800;letter-spacing:-.01em;margin-top:22px}
.hero-sub{font-size:clamp(16px,1.6vw,19px);line-height:1.7;color:rgba(255,255,255,.9);margin-top:16px;font-weight:500}
.hero-desc{font-size:16px;line-height:1.85;color:rgba(255,255,255,.68);margin-top:14px;max-width:600px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-facts{display:flex;flex-wrap:wrap;gap:22px;margin-top:30px;font-size:12.5px;letter-spacing:.02em;color:rgba(255,255,255,.62)}
.hero-facts li{display:inline-flex;align-items:center;gap:8px}
.hero-facts li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-primary)}
.hero-media{position:relative;border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-3);border:1px solid rgba(255,255,255,.12)}
.hero-media img{width:100%;height:280px;object-fit:cover}
@media(min-width:768px){.hero-media img{height:380px}}
@media(min-width:1024px){.hero-media img{height:440px}}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,20,16,0) 42%,rgba(11,20,16,.72) 100%)}
.hero-media-cap{position:absolute;left:20px;right:20px;bottom:18px;z-index:2;font-size:13px;color:rgba(255,255,255,.86)}

/* ---------- section ---------- */
.section{padding:clamp(56px,8vw,104px) 0}
.section-alt{background:var(--c-surface)}
.section-head{max-width:760px;margin-bottom:40px}
.section-title{position:relative;font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;letter-spacing:-.01em;padding-left:18px}
.section-title::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:3px;background:var(--c-primary)}
.section-sub{margin-top:16px;color:var(--c-text-muted);font-size:16px;line-height:1.85;max-width:700px}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:768px){.steps{grid-template-columns:repeat(2,1fr);gap:24px}}
@media(min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);gap:28px}}
.step-card{position:relative;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);padding:26px 22px;box-shadow:var(--sh-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(134,217,27,.45)}
.step-num{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;border:2px solid var(--c-primary);color:var(--c-primary-active);font-weight:800;font-size:15px;background:var(--c-primary-soft)}
.step-card h3{font-size:20px;line-height:1.45;font-weight:650;margin-top:18px}
.step-card p{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--c-text-muted)}
@media(min-width:1024px){
  .steps{position:relative}
  .step-card::after{content:"";position:absolute;right:-26px;top:46px;width:24px;height:2px;background:linear-gradient(90deg,var(--c-primary),rgba(134,217,27,.15))}
  .step-card:last-child::after{display:none}
}

/* ---------- tiers ---------- */
.tier-list{display:flex;flex-direction:column;gap:10px;margin-top:8px}
.tier{display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:center;padding:18px 22px;border-radius:var(--r-md);background:var(--c-surface);border:1px solid var(--c-border);transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
@media(min-width:768px){.tier{grid-template-columns:auto 1fr auto;gap:20px}}
.tier:nth-child(odd){background:var(--c-surface-2)}
.tier:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.tier-badge{display:grid;place-items:center;min-width:46px;height:34px;padding:0 10px;border-radius:var(--r-sm);background:var(--c-primary-soft);color:var(--c-primary-active);font-weight:700;font-size:13px}
.tier-name{font-size:16.5px;font-weight:650}
.tier-note{display:block;font-size:13.5px;color:var(--c-text-muted);font-weight:400;margin-top:2px}
.tier-value{font-size:15px;color:var(--c-text-muted);font-weight:600}
@media(max-width:767px){.tier-value{grid-column:1 / -1;padding-left:0}}
.tier.featured{border-color:var(--c-primary);background:var(--c-surface);position:relative;box-shadow:0 6px 20px rgba(134,217,27,.16)}
.tier.featured .tier-badge{background:var(--c-primary);color:var(--c-primary-ink)}
.tag-hot{position:absolute;top:-11px;right:18px;background:var(--c-accent);color:#3A1C00;font-size:12px;font-weight:700;padding:3px 12px;border-radius:var(--r-pill);letter-spacing:.02em}

/* ---------- progress (dark) ---------- */
.progress-band{background:var(--c-bg-dark);color:#fff;padding:clamp(56px,8vw,100px) 0}
.progress-band .section-title{color:#fff}
.progress-band .section-title::before{background:var(--c-primary)}
.progress-band .section-sub{color:rgba(255,255,255,.66)}
.progress-shell{background:var(--c-surface-dark);border:1px solid rgba(134,217,27,.18);border-radius:var(--r-xl);padding:28px 24px}
@media(min-width:768px){.progress-shell{padding:34px 34px}}
.progress-track{height:8px;border-radius:var(--r-pill);background:rgba(255,255,255,.12);overflow:hidden}
.progress-fill{height:100%;width:62%;border-radius:var(--r-pill);background:linear-gradient(90deg,#12B3A6,#86D91B)}
.progress-nodes{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:26px}
@media(min-width:768px){.progress-nodes{grid-template-columns:repeat(4,1fr)}}
.node{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:rgba(255,255,255,.86)}
.node i{display:block;width:12px;height:12px;border-radius:50%;margin-top:6px;flex:none;background:var(--c-primary)}
.node.pending i{background:transparent;border:2px solid rgba(255,255,255,.35)}
.progress-hint{display:flex;align-items:center;gap:10px;margin-top:26px;padding:14px 18px;border-radius:var(--r-md);background:rgba(255,255,255,.06);border:1px dashed rgba(255,255,255,.2);font-size:14px;color:rgba(255,255,255,.78)}

/* ---------- posts ---------- */
.posts-head{display:flex;flex-wrap:wrap;gap:16px;align-items:flex-end;justify-content:space-between;margin-bottom:36px}
.link-more{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary-active);font-weight:650;font-size:15px;min-height:44px}
.link-more span{transition:transform .2s var(--ease)}
.link-more:hover span{transform:translateX(3px)}
.post-grid{display:grid;grid-template-columns:1fr;gap:22px}
@media(min-width:768px){.post-grid{grid-template-columns:repeat(2,1fr);gap:26px}}
.post-card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(134,217,27,.45)}
.post-thumb{aspect-ratio:16/9;background:var(--c-surface-2);overflow:hidden}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.badge{align-self:flex-start;font-size:12.5px;letter-spacing:.02em;padding:4px 12px;border-radius:var(--r-pill);background:var(--c-primary-soft);color:var(--c-primary-active);font-weight:650}
.badge-amber{background:#FFF0DC;color:#8A4B00}
.post-title{font-size:19px;line-height:1.5;font-weight:650;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-sum{font-size:14.5px;line-height:1.8;color:var(--c-text-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--c-border);font-size:13px;color:var(--c-text-muted)}
.post-meta .go{color:var(--c-primary-active);font-weight:650}
.empty-card{grid-column:1 / -1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;min-height:220px;border:2px dashed var(--c-border);border-radius:var(--r-lg);background:var(--c-surface);color:var(--c-text-muted);font-size:14px}
.empty-card svg{opacity:.5}

/* ---------- cta band ---------- */
.cta-band{background:var(--c-bg-dark);color:#fff;padding:clamp(56px,8vw,96px) 0;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;left:50%;top:-160px;width:640px;height:420px;transform:translateX(-50%);background:radial-gradient(circle,rgba(134,217,27,.2),transparent 68%);pointer-events:none}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:760px;margin:0 auto}
.cta-inner h2{font-size:clamp(24px,2.8vw,34px);line-height:1.3;font-weight:700}
.cta-inner p{margin-top:16px;color:rgba(255,255,255,.72);font-size:16px;line-height:1.85}
.cta-lines{display:flex;align-items:center;gap:18px;margin:32px 0}
.cta-lines::before,.cta-lines::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,transparent,rgba(134,217,27,.55),transparent)}
.cta-trust{display:flex;flex-wrap:wrap;justify-content:center;gap:24px;margin-top:26px;font-size:13px;color:rgba(255,255,255,.62)}
.cta-trust li{display:inline-flex;align-items:center;gap:8px}
.cta-trust li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary)}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}
.faq-item[open]{border-color:rgba(134,217,27,.5);box-shadow:var(--sh-2)}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;list-style:none;cursor:pointer;padding:20px 22px;font-size:17px;font-weight:600;line-height:1.6}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:22px;font-weight:400;color:var(--c-primary-active);transition:transform .25s var(--ease);line-height:1}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-answer{padding:0 22px 22px 22px}
.faq-answer p{position:relative;padding-left:20px;max-width:760px;font-size:16px;line-height:1.85;color:var(--c-text-muted)}
.faq-answer p::before{content:"";position:absolute;left:0;top:.35em;bottom:.35em;width:3px;border-radius:2px;background:var(--c-primary)}

/* ---------- info split ---------- */
.split{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media(min-width:1024px){.split{grid-template-columns:1fr 1fr;gap:56px}}
.split-media{border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--c-border);box-shadow:var(--sh-2)}
.split-media img{width:100%;height:260px;object-fit:cover}
@media(min-width:768px){.split-media img{height:340px}}
.info-list{display:flex;flex-direction:column;gap:14px;margin-top:24px}
.info-list li{display:flex;gap:12px;font-size:15.5px;line-height:1.8;color:var(--c-text-muted)}
.info-list li b{display:block;color:var(--c-text);font-weight:650}
.info-list li i{display:block;flex:none;width:22px;height:22px;margin-top:6px;border-radius:50%;background:var(--c-primary-soft);position:relative}
.info-list li i::after{content:"";position:absolute;left:7px;top:6px;width:6px;height:10px;border-right:2px solid var(--c-primary-active);border-bottom:2px solid var(--c-primary-active);transform:rotate(40deg)}

/* ---------- footer ---------- */
.site-footer{background:var(--c-bg-dark);color:rgba(255,255,255,.72);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px}
.footer-desc{font-size:14px;line-height:1.85;margin-top:16px;max-width:340px;color:rgba(255,255,255,.62)}
.footer-contact{font-size:14px;line-height:2;margin-top:16px;color:rgba(255,255,255,.62)}
.footer-contact span{color:var(--c-primary)}
.footer-title{color:#fff;font-size:15px;font-weight:650;margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:10px;font-size:14px}
.footer-links a{display:inline-block;min-height:26px;transition:color .2s var(--ease),transform .2s var(--ease)}
.footer-links a:hover{color:var(--c-primary);transform:translateX(3px)}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.1);padding:20px 0 26px;font-size:12.5px;letter-spacing:.02em;color:rgba(255,255,255,.48);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --c-bg:#F5F7F2;
  --c-bg-dark:#0B1410;
  --c-surface:#FFFFFF;
  --c-surface-2:#EDF2E9;
  --c-surface-dark:#13201A;
  --c-primary:#86D91B;
  --c-primary-hover:#74C412;
  --c-primary-active:#5FA80E;
  --c-primary-ink:#10230A;
  --c-primary-soft:#EAF7D6;
  --c-primary-text:#4A7F0E;
  --c-accent:#FF9A2E;
  --c-teal:#12B3A6;
  --c-text:#16201B;
  --c-text-muted:#5E6B63;
  --c-border:#DCE3D8;
  --c-danger:#D93A3A;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-xl:28px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,20,16,.06);
  --sh-2:0 6px 18px rgba(11,20,16,.08);
  --sh-3:0 14px 38px rgba(11,20,16,.14);
  --ease:cubic-bezier(.22,.61,.36,1);
  --section-gap:clamp(56px,8vw,112px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
input,textarea,select{font:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}
@media(min-width:1440px){.container{max-width:1280px}}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,20,16,.9);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.09);
}
.header-inner{display:flex;align-items:center;gap:16px;height:72px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:19px;letter-spacing:-.01em;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(135deg,#9BE82B,#5FA80E);
  display:grid;place-items:center;
}
.brand-text{white-space:nowrap}
.nav-panel{display:none}
@media(min-width:1024px){
  .nav-panel{
    display:flex;align-items:center;gap:4px;
    background:#fff;border-radius:var(--r-lg);
    padding:6px;margin-left:auto;
    box-shadow:var(--sh-1);
  }
}
.nav-chip{
  position:relative;display:inline-flex;align-items:center;height:40px;
  padding:0 14px;border-radius:var(--r-sm);
  font-size:14px;color:#3D4B42;white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.nav-chip:hover{background:var(--c-surface-2);color:var(--c-text);transform:translateY(-2px)}
.nav-chip.active{background:var(--c-surface-2);color:var(--c-primary-text);font-weight:600}
.nav-chip.active::before{
  content:"";position:absolute;left:4px;top:9px;bottom:9px;width:3px;
  border-radius:2px;background:var(--c-primary);
}
.header-cta{display:none}
@media(min-width:1024px){.header-cta{display:inline-flex}}
.nav-toggle{
  display:grid;place-items:center;width:44px;height:44px;margin-left:auto;
  border-radius:12px;border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.06);cursor:pointer;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:rgba(255,255,255,.12);border-color:rgba(134,217,27,.5)}
@media(min-width:1024px){.nav-toggle{display:none}}
.mobile-drawer{
  display:none;
  position:absolute;left:0;right:0;top:100%;
  background:var(--c-bg-dark);
  border-bottom:1px solid rgba(255,255,255,.1);
  padding:14px 20px 22px;
  box-shadow:0 24px 40px rgba(0,0,0,.35);
}
.mobile-drawer.open{display:block}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 14px;border-radius:var(--r-md);
  color:#E7EFE9;font-size:15px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.04);
  margin-bottom:10px;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.drawer-link:hover{background:rgba(134,217,27,.12);border-color:rgba(134,217,27,.4)}
.drawer-link .dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary);flex:0 0 auto}
.drawer-cta{width:100%;margin-top:6px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary{background:var(--c-primary);color:var(--c-primary-ink)}
.btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{background:var(--c-primary-active);transform:translateY(0);box-shadow:none}
.btn-ghost{background:transparent;border-color:var(--c-border);color:var(--c-text)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary-text);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:transparent;border-color:rgba(255,255,255,.28);color:#fff}
.btn-light:hover{border-color:var(--c-primary);transform:translateY(-2px)}
.btn-light:active{transform:translateY(0)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
@media(max-width:640px){
  .btn{width:100%;height:52px}
  .header-cta{width:auto}
}

/* ============ 徽章 / 面包屑 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 11px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  background:var(--c-primary-soft);color:var(--c-primary-text);
}
.badge-amber{background:#FFF1DE;color:#B45F00}
.badge-line{background:transparent;border:1px solid var(--c-border);color:var(--c-text-muted);font-weight:500}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--c-text-muted);
  padding:22px 0 0;
}
.breadcrumb a{transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--c-primary-text)}
.breadcrumb .sep{color:#AEB9AF}
.breadcrumb .current{color:var(--c-text-muted);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media(max-width:640px){.breadcrumb .current{white-space:normal}}

/* ============ 文章头部 ============ */
.article-top{padding:26px 0 0}
.article-title{
  font-size:clamp(26px,3.4vw,40px);
  line-height:1.26;font-weight:800;letter-spacing:-.01em;
  margin:14px 0 0;max-width:920px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;
  margin-top:18px;font-size:14px;color:var(--c-text-muted);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta svg{flex:0 0 auto}
.article-cover{
  margin:28px 0 0;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--c-border);background:var(--c-surface-2);
  aspect-ratio:16/9;
}
.article-cover img{width:100%;height:100%;object-fit:cover}
.notice-bar{
  display:flex;gap:12px;align-items:flex-start;
  margin:26px 0 0;padding:16px 18px;
  border-radius:var(--r-md);
  background:var(--c-surface-2);
  border-left:4px solid var(--c-primary);
  font-size:14.5px;line-height:1.8;color:#3C4A41;
}
.notice-bar strong{color:var(--c-text)}

/* ============ 文章布局 ============ */
.article-section{padding-bottom:var(--section-gap)}
.article-layout{
  display:grid;grid-template-columns:1fr;gap:40px;
  align-items:start;padding-top:36px;
}
@media(min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:56px}
}
.article-main{min-width:0;max-width:820px}
.article-side{display:flex;flex-direction:column;gap:20px}
@media(min-width:1024px){
  .article-side{position:sticky;top:96px}
}
.side-card{
  background:var(--c-surface);
  border:1px solid var(--c-border);
  border-radius:var(--r-lg);
  padding:20px 22px;
  box-shadow:var(--sh-1);
}
.side-card h2{
  font-size:16px;font-weight:700;margin:0 0 14px;
  padding-left:12px;position:relative;line-height:1.4;
}
.side-card h2::before{
  content:"";position:absolute;left:0;top:3px;bottom:3px;width:3px;
  border-radius:2px;background:var(--c-primary);
}
.side-steps{list-style:none;margin:0;padding:0}
.side-steps li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;line-height:1.75;color:#3C4A41;
  padding:9px 0;border-bottom:1px dashed var(--c-border);
}
.side-steps li:last-child{border-bottom:0}
.side-steps .num{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary-text);
  font-size:12px;font-weight:700;display:grid;place-items:center;margin-top:2px;
}
.side-list{list-style:none;margin:0;padding:0}
.side-list li{
  position:relative;padding-left:16px;font-size:14px;line-height:1.8;
  color:#48554C;margin-bottom:10px;
}
.side-list li:last-child{margin-bottom:0}
.side-list li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:6px;height:6px;border-radius:2px;background:var(--c-primary);
}
.side-card .btn{width:100%;margin-top:16px}

/* ============ 正文排版 ============ */
.article-body{font-size:17px;line-height:1.9;color:var(--c-text);padding-top:8px}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  font-size:clamp(22px,2.2vw,28px);
  font-weight:700;line-height:1.35;
  margin:2em 0 .8em;padding-left:14px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;
  border-radius:2px;background:var(--c-primary);
}
.article-body h3{font-size:20px;font-weight:650;line-height:1.45;margin:1.6em 0 .6em}
.article-body h4{font-size:17.5px;font-weight:650;margin:1.4em 0 .5em}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.35em}
.article-body ul{list-style:square}
.article-body ol{list-style:decimal}
.article-body li{margin:.5em 0;line-height:1.85}
.article-body ul li::marker{color:var(--c-primary)}
.article-body ol li::marker{color:var(--c-primary-text);font-weight:600}
.article-body a{color:var(--c-primary-text);text-decoration:underline;text-underline-offset:3px;transition:color .2s var(--ease)}
.article-body a:hover{color:var(--c-primary-active)}
.article-body strong{font-weight:700}
.article-body blockquote{
  margin:1.5em 0;padding:18px 22px;
  background:var(--c-surface-2);
  border-left:4px solid var(--c-primary);
  border-radius:var(--r-md);
  color:#3C4A41;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:1.5em auto;height:auto}
.article-body figure{margin:1.5em 0}
.article-body figcaption{
  text-align:center;font-size:13px;color:var(--c-text-muted);margin-top:10px;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.5em 0;
  font-size:15.5px;background:var(--c-surface);
  border:1px solid var(--c-border);border-radius:var(--r-md);overflow:hidden;
}
.article-body th{
  background:var(--c-surface-2);text-align:left;font-weight:600;
  padding:12px 14px;border:1px solid var(--c-border);
}
.article-body td{padding:12px 14px;border:1px solid var(--c-border);vertical-align:top}
.article-body tbody tr:nth-child(even) td{background:#FAFBF8}
.article-body pre{
  background:var(--c-bg-dark);color:#E8F2E2;
  padding:16px 18px;border-radius:var(--r-md);
  overflow-x:auto;font-size:14px;line-height:1.7;margin:1.4em 0;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  background:var(--c-surface-2);padding:2px 6px;border-radius:6px;font-size:14.5px;
}
.article-body pre code{background:transparent;padding:0;color:inherit}
.article-body hr{border:0;border-top:1px solid var(--c-border);margin:2em 0}

/* ============ 空态 ============ */
.empty-state{
  text-align:center;padding:56px 24px;margin-top:32px;
  border:1px dashed #C6D2C3;border-radius:var(--r-lg);
  background:var(--c-surface);
}
.empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;
  background:var(--c-surface-2);display:grid;place-items:center;
}
.empty-title{font-size:19px;font-weight:700;margin:0 0 8px}
.empty-desc{font-size:14.5px;color:var(--c-text-muted);margin:0 auto 22px;max-width:420px;line-height:1.8}
.empty-state .btn{width:auto}

/* ============ 相关推荐 ============ */
.related-section{background:var(--c-surface);border-top:1px solid var(--c-border);padding:var(--section-gap) 0}
.section-head{display:flex;flex-wrap:wrap;gap:14px;align-items:flex-end;justify-content:space-between;margin-bottom:28px}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3;margin:0;
  padding-left:16px;position:relative;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;
  border-radius:2px;background:var(--c-primary);
}
.section-head p{margin:6px 0 0;font-size:14.5px;color:var(--c-text-muted)}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--c-primary-text);
  transition:color .2s var(--ease),gap .2s var(--ease);
}
.text-link:hover{color:var(--c-primary-active);gap:10px}
.card-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:768px){.card-grid{grid-template-columns:repeat(2,1fr);gap:24px}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);gap:28px}}
.post-card{
  display:flex;flex-direction:column;
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(134,217,27,.4)}
.post-thumb{aspect-ratio:16/9;background:var(--c-surface-2);overflow:hidden}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.post-body h3{font-size:18px;font-weight:650;line-height:1.45;margin:12px 0 8px}
.post-body p{font-size:14px;line-height:1.75;color:var(--c-text-muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-text-muted)}

/* ============ 底部转化区 ============ */
.cta-section{
  background:var(--c-bg-dark);color:#fff;position:relative;overflow:hidden;
  padding:clamp(52px,7vw,88px) 0;
}
.cta-section::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(560px 260px at 12% 0%,rgba(134,217,27,.20),transparent 70%),
    radial-gradient(480px 240px at 88% 100%,rgba(18,179,166,.16),transparent 72%);
  pointer-events:none;
}
.cta-inner{position:relative;text-align:center}
.cta-inner h2{
  font-size:clamp(24px,2.8vw,34px);font-weight:700;line-height:1.3;margin:0 0 12px;
}
.cta-inner p{color:#B9C7BC;font-size:15.5px;line-height:1.85;margin:0 auto 28px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}
.cta-trust{
  display:flex;flex-wrap:wrap;gap:14px 28px;justify-content:center;
  margin-top:34px;padding-top:26px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:#93A498;
}
.cta-trust span{display:inline-flex;align-items:center;gap:8px}
.cta-trust i{width:6px;height:6px;border-radius:50%;background:var(--c-primary);display:inline-block}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-bg-dark);color:#C9D6CC;
  padding:clamp(48px,6vw,72px) 0 0;
  border-top:1px solid rgba(255,255,255,.08);
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:14px}
.footer-brand .brand-mark{width:30px;height:30px;border-radius:10px}
.footer-desc{font-size:14px;line-height:1.8;color:#9FB0A4;max-width:330px;margin:0 0 14px}
.footer-contact{font-size:13px;color:#8A9C90;line-height:1.9;margin:0}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin:0 0 14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#A9BAB0;transition:color .2s var(--ease)}
.footer-links a:hover{color:var(--c-primary)}
.footer-bottom{
  margin-top:clamp(32px,5vw,48px);
  border-top:1px solid rgba(255,255,255,.08);
  padding:18px 0 22px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.5px;color:#7E8F84;
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .post-card:hover{transform:none}
  .btn:hover{transform:none}
}

/* roulang page: category1 */
:root{
    --c-bg:#F5F7F2;
    --c-bg-dark:#0B1410;
    --c-surface:#FFFFFF;
    --c-surface-2:#EDF2E9;
    --c-surface-dark:#13201A;
    --c-primary:#86D91B;
    --c-primary-hover:#74C412;
    --c-primary-active:#5FA80E;
    --c-primary-soft:#EAF7D6;
    --c-primary-ink:#10230A;
    --c-accent:#FF9A2E;
    --c-teal:#12B3A6;
    --c-text:#16201B;
    --c-text-muted:#5E6B63;
    --c-border:#DCE3D8;
    --c-danger:#D93A3A;
    --r-sm:10px; --r-md:14px; --r-lg:20px; --r-xl:28px; --r-pill:999px;
    --sh-1:0 1px 2px rgba(11,20,16,.06);
    --sh-2:0 6px 18px rgba(11,20,16,.08);
    --sh-3:0 14px 38px rgba(11,20,16,.14);
    --t:220ms cubic-bezier(.22,.61,.36,1);
    --font-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%}
  body{
    margin:0;
    background:var(--c-bg);
    color:var(--c-text);
    font-family:var(--font-cn);
    font-size:16.5px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font:inherit;cursor:pointer}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  h1,h2,h3{letter-spacing:-.01em}
  .num{font-variant-numeric:tabular-nums}
  :focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){.container{padding:0 32px}}
  @media (min-width:1440px){.container{max-width:1280px}}

  /* ---------- header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(11,20,16,.88);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
    border-bottom:1px solid rgba(255,255,255,.09);
  }
  .header-inner{display:flex;align-items:center;gap:16px;height:72px}
  .brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:19px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;flex:none}
  .brand-mark{width:34px;height:34px;border-radius:var(--r-sm);background:var(--c-primary);display:grid;place-items:center;flex:none}
  .header-spacer{flex:1}
  .nav-panel{display:none}
  @media (min-width:1024px){
    .nav-panel{
      display:flex;gap:4px;align-items:center;
      background:var(--c-surface);
      border-radius:var(--r-lg);
      padding:6px;
      box-shadow:var(--sh-1);
    }
  }
  .nav-chip{
    display:inline-flex;align-items:center;
    min-height:40px;padding:0 14px;border-radius:var(--r-sm);
    font-size:14px;font-weight:500;color:var(--c-text);
    transition:background var(--t),transform var(--t),box-shadow var(--t),color var(--t);
    white-space:nowrap;
  }
  .nav-chip:hover{background:var(--c-surface-2);transform:translateY(-2px)}
  .nav-chip.active{background:var(--c-primary-soft);color:#3F7110;box-shadow:inset 3px 0 0 var(--c-primary)}
  .header-cta{display:none}
  @media (min-width:1024px){.header-cta{display:inline-flex}}
  .menu-toggle{
    display:inline-flex;align-items:center;justify-content:center;
    width:44px;height:44px;border-radius:var(--r-sm);
    background:rgba(255,255,255,.10);
    border:1px solid rgba(255,255,255,.16);
    color:#fff;
  }
  @media (min-width:1024px){.menu-toggle{display:none}}
  .mobile-nav{display:none;background:var(--c-bg-dark);border-top:1px solid rgba(255,255,255,.09);padding:16px 0 24px}
  .mobile-nav.open{display:block}
  .mobile-nav .nav-chip{
    display:flex;width:100%;min-height:52px;justify-content:flex-start;
    background:rgba(255,255,255,.05);color:#E6EFE6;margin-bottom:8px;padding:0 16px;font-size:15px;
  }
  .mobile-nav .nav-chip.active{background:rgba(134,217,27,.16);color:#CDF29A;box-shadow:inset 3px 0 0 var(--c-primary)}
  .mobile-nav .btn-primary{width:100%;justify-content:center;margin-top:12px}

  /* ---------- buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 24px;border-radius:var(--r-pill);
    font-size:15px;font-weight:600;border:1px solid transparent;
    transition:background var(--t),transform var(--t),box-shadow var(--t),border-color var(--t),color var(--t);
    cursor:pointer;
  }
  .btn-primary{background:var(--c-primary);color:var(--c-primary-ink);box-shadow:var(--sh-1)}
  .btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-2px);box-shadow:var(--sh-2)}
  .btn-primary:active{background:var(--c-primary-active);transform:translateY(0)}
  .btn-primary:disabled{opacity:.45;cursor:not-allowed;transform:none}
  .btn-outline{background:transparent;border-color:var(--c-border);color:var(--c-text)}
  .btn-outline:hover{border-color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--sh-1)}
  .btn-ghost-dark{background:transparent;border-color:rgba(255,255,255,.28);color:#fff}
  .btn-ghost-dark:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px)}
  .link-arrow{display:inline-flex;align-items:center;gap:6px;color:#3F7110;font-weight:600;font-size:14px;transition:color var(--t)}
  .link-arrow svg{transition:transform var(--t)}
  .link-arrow:hover{color:var(--c-primary-hover)}
  .link-arrow:hover svg{transform:translateX(3px)}

  /* ---------- badges / tags ---------- */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 12px;border-radius:var(--r-pill);
    font-size:12.5px;font-weight:600;letter-spacing:.02em;
  }
  .badge-lime{background:var(--c-primary-soft);color:#3F7110}
  .badge-amber{background:#FFF1DF;color:#B7601A}
  .badge-teal{background:#DFF7F4;color:#0B7A71}

  /* ---------- hero ---------- */
  .cat-hero{
    position:relative;color:#fff;
    padding:52px 0 60px;
    background:
      radial-gradient(120% 120% at 12% 0%, rgba(134,217,27,.16) 0%, rgba(11,20,16,0) 62%),
      linear-gradient(rgba(11,20,16,.88),rgba(11,20,16,.94)),
      url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:#9CB0A1;margin-bottom:22px}
  .breadcrumb a{color:#C6D6C9;transition:color var(--t)}
  .breadcrumb a:hover{color:var(--c-primary)}
  .breadcrumb .sep{color:#5C7061}
  .breadcrumb .current{color:#8FA394}
  .hero-grid{display:grid;gap:32px;grid-template-columns:1fr;align-items:center}
  @media (min-width:960px){.hero-grid{grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:44px}}
  .cat-hero h1{font-size:clamp(30px,4.4vw,50px);line-height:1.18;font-weight:800;letter-spacing:-.015em}
  .hero-sub{margin-top:18px;font-size:16.5px;line-height:1.8;color:#C3D2C6;max-width:640px}
  .hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}
  .hero-meta{margin-top:24px;display:flex;flex-wrap:wrap;gap:10px 22px;font-size:12.5px;color:#93A798}
  .hero-meta span{display:inline-flex;align-items:center;gap:7px}
  .hero-figure{border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-3);border:1px solid rgba(255,255,255,.12)}
  .hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}

  /* ---------- sections ---------- */
  .section{padding:clamp(56px,8vw,104px) 0}
  .section-tight{padding:clamp(44px,6vw,72px) 0}
  .sec-head{max-width:720px;margin-bottom:clamp(28px,4vw,44px)}
  .sec-head h2{
    position:relative;padding-left:16px;
    font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;
  }
  .sec-head h2::before{
    content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:2px;background:var(--c-primary);
  }
  .sec-head p{margin-top:14px;color:var(--c-text-muted);font-size:15.5px;line-height:1.85}

  /* ---------- 入口特征小卡 ---------- */
  .feature-grid{display:grid;gap:20px;grid-template-columns:1fr}
  @media (min-width:640px){.feature-grid{grid-template-columns:1fr 1fr}}
  @media (min-width:1024px){.feature-grid{grid-template-columns:repeat(4,1fr);gap:24px}}
  .feature-card{
    background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
    padding:22px;box-shadow:var(--sh-1);
    transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  }
  .feature-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(134,217,27,.5)}
  .feature-ico{
    width:44px;height:44px;border-radius:var(--r-md);
    background:#DFF7F4;display:grid;place-items:center;margin-bottom:16px;
  }
  .feature-card h3{font-size:18px;font-weight:650;line-height:1.45;margin-bottom:8px}
  .feature-card p{font-size:14.5px;color:var(--c-text-muted);line-height:1.8}

  /* ---------- 交替图文列表 ---------- */
  .flow-list{border-top:1px solid var(--c-border)}
  .flow-row{
    display:grid;gap:24px;grid-template-columns:1fr;
    padding:36px 0;border-bottom:1px solid var(--c-border);
  }
  @media (min-width:900px){
    .flow-row{grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:44px;align-items:center;padding:44px 0}
    .flow-row:nth-child(even) .flow-media{order:2}
  }
  .flow-media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-border);box-shadow:var(--sh-1);background:var(--c-surface-2)}
  .flow-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 420ms cubic-bezier(.22,.61,.36,1)}
  .flow-row:hover .flow-media img{transform:scale(1.03)}
  .flow-index{
    display:inline-flex;align-items:center;justify-content:center;
    width:38px;height:38px;border-radius:var(--r-pill);
    background:var(--c-primary-soft);color:#3F7110;font-weight:700;font-size:14px;
    font-variant-numeric:tabular-nums;margin-bottom:14px;
  }
  .flow-body h3{font-size:21px;font-weight:700;line-height:1.45;margin-bottom:12px}
  .flow-body p{font-size:15.5px;color:#38453D;line-height:1.9}
  .check-list{margin-top:16px;display:grid;gap:10px}
  .check-list li{display:flex;gap:10px;font-size:14.5px;color:var(--c-text-muted);line-height:1.75}
  .check-list li::before{
    content:"";flex:none;width:8px;height:8px;margin-top:11px;border-radius:2px;background:var(--c-primary);
  }

  /* ---------- 深色检查区 ---------- */
  .dark-band{
    background:
      radial-gradient(90% 100% at 100% 0%, rgba(134,217,27,.13) 0%, rgba(11,20,16,0) 58%),
      var(--c-bg-dark);
    color:#E7F0E8;
    padding:clamp(56px,8vw,104px) 0;
  }
  .dark-band .sec-head h2{color:#fff}
  .dark-band .sec-head p{color:#9FB3A4}
  .check-grid{display:grid;gap:20px;grid-template-columns:1fr}
  @media (min-width:768px){.check-grid{grid-template-columns:1fr 1fr}}
  @media (min-width:1100px){.check-grid{grid-template-columns:repeat(4,1fr)}}
  .check-card{
    background:var(--c-surface-dark);
    border:1px solid rgba(134,217,27,.18);
    border-radius:var(--r-lg);
    padding:22px;
    transition:transform var(--t),border-color var(--t),background var(--t);
  }
  .check-card:hover{transform:translateY(-3px);border-color:rgba(134,217,27,.45);background:#16261F}
  .check-card .idx{font-size:12.5px;letter-spacing:.06em;color:var(--c-primary);font-weight:700}
  .check-card h3{font-size:17.5px;font-weight:650;color:#fff;margin:10px 0 8px;line-height:1.5}
  .check-card p{font-size:14.5px;color:#9CB0A1;line-height:1.8}
  .dark-note{
    margin-top:28px;display:flex;gap:12px;align-items:flex-start;
    background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);
    border-radius:var(--r-md);padding:16px 18px;font-size:14px;color:#A9BCAD;line-height:1.8;
  }

  /* ---------- FAQ ---------- */
  .faq-list{display:grid;gap:12px;max-width:900px}
  .faq-item{
    background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-md);
    overflow:hidden;transition:border-color var(--t),box-shadow var(--t);
  }
  .faq-item:hover{border-color:rgba(134,217,27,.45);box-shadow:var(--sh-1)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    background:transparent;border:0;text-align:left;
    padding:18px 20px;font-size:16.5px;font-weight:600;color:var(--c-text);line-height:1.6;
  }
  .faq-q .plus{
    flex:none;width:26px;height:26px;border-radius:var(--r-pill);
    background:var(--c-surface-2);display:grid;place-items:center;
    transition:transform var(--t),background var(--t);
  }
  .faq-item.open .faq-q .plus{transform:rotate(180deg);background:var(--c-primary-soft)}
  .faq-a{
    max-height:0;overflow:hidden;transition:max-height 280ms cubic-bezier(.22,.61,.36,1);
  }
  .faq-a-inner{
    padding:0 20px 20px 20px;max-width:760px;
    border-left:3px solid var(--c-primary);margin-left:20px;padding-left:17px;
    font-size:15.5px;line-height:1.85;color:#3B4A41;
  }
  .faq-item.open .faq-a{max-height:520px}

  /* ---------- CTA ---------- */
  .cta-band{
    background:
      radial-gradient(80% 120% at 50% 0%, rgba(134,217,27,.20) 0%, rgba(11,20,16,0) 60%),
      var(--c-bg-dark);
    color:#fff;text-align:center;
    padding:clamp(52px,7vw,88px) 0;
  }
  .cta-band h2{font-size:clamp(23px,2.6vw,32px);font-weight:700;line-height:1.35}
  .cta-band p{margin:16px auto 0;max-width:620px;color:#A9BCAD;font-size:15.5px;line-height:1.85}
  .cta-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
  .cta-line{height:1px;width:64px;background:rgba(134,217,27,.55);margin:26px auto 0}
  .trust-row{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px 26px;justify-content:center;font-size:13px;color:#8FA394}
  .trust-row span{display:inline-flex;align-items:center;gap:7px}

  /* ---------- footer ---------- */
  .site-footer{background:var(--c-bg-dark);color:#C8D6CC;padding:64px 0 0;border-top:1px solid rgba(255,255,255,.08)}
  .footer-grid{display:grid;gap:36px;grid-template-columns:1fr}
  @media (min-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px}}
  .footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:14px}
  .site-footer .brand-mark{width:32px;height:32px;border-radius:9px;background:var(--c-primary);display:grid;place-items:center;flex:none}
  .footer-desc{font-size:14px;line-height:1.85;color:#9FB3A4;max-width:340px}
  .footer-contact{font-size:13px;line-height:1.95;color:#7E9384;margin-top:16px}
  .footer-title{font-size:15px;font-weight:650;color:#fff;margin-bottom:14px}
  .footer-links{display:flex;flex-direction:column;gap:10px}
  .footer-links a{font-size:14px;color:#A9BCAD;transition:color var(--t)}
  .footer-links a:hover{color:var(--c-primary)}
  .footer-bottom{
    margin-top:48px;border-top:1px solid rgba(255,255,255,.10);
    padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;
    font-size:12.5px;color:#7E9384;
  }

  @media (prefers-reduced-motion:reduce){
    *{transition:none!important;animation:none!important}
  }

/* roulang page: category2 */
:root{
  --c-bg:#F5F7F2;
  --c-bg-dark:#0B1410;
  --c-surface:#FFFFFF;
  --c-surface-2:#EDF2E9;
  --c-surface-dark:#13201A;
  --c-primary:#86D91B;
  --c-primary-hover:#74C412;
  --c-primary-deep:#5FA80E;
  --c-primary-soft:#EAF7D6;
  --c-primary-ink:#10230A;
  --c-accent:#FF9A2E;
  --c-teal:#12B3A6;
  --c-text:#16201B;
  --c-text-muted:#5E6B63;
  --c-border:#DCE3D8;
  --c-danger:#D93A3A;
  --r-sm:10px; --r-md:14px; --r-lg:20px; --r-xl:28px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,20,16,.06);
  --sh-2:0 6px 18px rgba(11,20,16,.08);
  --sh-3:0 14px 38px rgba(11,20,16,.14);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sec-gap:clamp(56px,8vw,112px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--c-bg);color:var(--c-text);
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;line-height:1.85;font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button{font:inherit;border:none;background:none;cursor:pointer}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}
@media(min-width:1440px){.container{max-width:1280px}}

/* ============ 页头 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(11,20,16,.88);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(255,255,255,.09);
}
.header-inner{display:flex;align-items:center;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:#fff}
.brand-mark{
  width:32px;height:32px;border-radius:10px;background:var(--c-primary);
  display:grid;place-items:center;flex-shrink:0;
  box-shadow:0 4px 14px rgba(134,217,27,.32);
}
.brand-text{font-size:18px;font-weight:700;letter-spacing:-.01em;white-space:nowrap}
.nav-panel{
  display:none;align-items:center;gap:2px;flex:1;
  background:var(--c-surface);border-radius:var(--r-lg);
  padding:6px;box-shadow:var(--sh-1);
}
@media(min-width:1024px){.nav-panel{display:flex}}
.nav-chip{
  position:relative;display:inline-flex;align-items:center;
  padding:9px 14px;border-radius:var(--r-sm);
  font-size:14px;font-weight:500;color:var(--c-text-muted);white-space:nowrap;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.nav-chip:hover{background:var(--c-surface-2);color:var(--c-text);transform:translateY(-2px)}
.nav-chip.active{
  background:var(--c-primary-soft);color:#3C6E08;font-weight:600;padding-left:19px;
}
.nav-chip.active::before{
  content:"";position:absolute;left:8px;top:50%;transform:translateY(-50%);
  width:3px;height:16px;border-radius:2px;background:var(--c-primary);
}
.header-cta{display:none;margin-left:auto}
@media(min-width:1024px){.header-cta{display:block}}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;border-radius:var(--r-md);
  display:grid;place-items:center;color:#fff;font-size:18px;
  border:1px solid rgba(255,255,255,.16);
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.3)}
@media(min-width:1024px){.nav-toggle{display:none}}
.mobile-drawer{
  display:none;position:fixed;inset:72px 0 0 0;z-index:79;
  background:rgba(11,20,16,.97);backdrop-filter:blur(8px);
  padding:24px 20px 40px;overflow-y:auto;
}
.mobile-drawer.is-open{display:block}
@media(min-width:1024px){.mobile-drawer{display:none !important}}
.drawer-label{font-size:12.5px;letter-spacing:.08em;color:rgba(255,255,255,.45);margin-bottom:12px}
.drawer-list{display:flex;flex-direction:column;gap:8px}
.drawer-list a{
  display:flex;align-items:center;min-height:52px;padding:0 18px;
  border-radius:var(--r-md);background:rgba(255,255,255,.06);
  color:rgba(255,255,255,.85);font-size:15px;
  border:1px solid rgba(255,255,255,.08);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.drawer-list a:hover,.drawer-list a.active{background:rgba(134,217,27,.16);color:#fff;border-color:rgba(134,217,27,.4)}
.drawer-cta{margin-top:22px}
.drawer-cta .btn{width:100%;justify-content:center}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  border:1px solid transparent;
}
.btn-primary{background:var(--c-primary);color:var(--c-primary-ink);box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{background:var(--c-primary-deep);transform:translateY(0)}
.btn-outline{background:transparent;border-color:var(--c-border);color:var(--c-text)}
.btn-outline:hover{border-color:var(--c-primary);color:#3C6E08;transform:translateY(-2px)}
.btn-ghost-dark{background:transparent;border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost-dark:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.55);transform:translateY(-2px)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none !important}

/* ============ 徽章 / 小标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.badge-lime{background:var(--c-primary-soft);color:#3C6E08}
.badge-amber{background:rgba(255,154,46,.16);color:#A85E04}
.badge-teal{background:rgba(18,179,166,.14);color:#0A7C72}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.55)}
.breadcrumb a{color:rgba(255,255,255,.72)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:rgba(255,255,255,.3)}
.breadcrumb .current{color:rgba(255,255,255,.5)}

/* ============ 内页 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background:var(--c-bg-dark);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(circle at 80% 30%, rgba(134,217,27,.20), transparent 55%),
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size:auto, 46px 46px, 46px 46px;
}
.page-hero-inner{
  position:relative;z-index:1;
  display:grid;gap:28px;padding:40px 0 48px;
}
@media(min-width:1024px){
  .page-hero-inner{grid-template-columns:7fr 5fr;align-items:center;gap:48px;min-height:360px;padding:48px 0 56px}
}
.page-hero h1{
  font-size:clamp(30px,4.4vw,50px);line-height:1.18;font-weight:800;
  letter-spacing:-.01em;margin:18px 0 14px;
}
.page-hero-sub{font-size:16.5px;line-height:1.8;color:rgba(255,255,255,.74);max-width:520px}
.page-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
@media(max-width:520px){.page-hero-actions .btn{width:100%}}
.page-hero-media{
  position:relative;border-radius:var(--r-xl);overflow:hidden;
  box-shadow:0 24px 60px rgba(0,0,0,.45);
  border:1px solid rgba(255,255,255,.12);
}
.page-hero-media img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover}
@media(max-width:1023px){.page-hero-media img{aspect-ratio:16/9}}

/* ============ 板块通用 ============ */
.section{padding:var(--sec-gap) 0}
.section-tight{padding:clamp(44px,6vw,80px) 0}
.section-dark{background:var(--c-bg-dark);color:#fff}
.section-alt{background:var(--c-surface-2)}
.section-head{max-width:760px;margin-bottom:clamp(28px,4vw,48px)}
.section-title{
  position:relative;padding-left:16px;
  font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;
  margin:16px 0 12px;letter-spacing:-.01em;
}
.section-title::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;
  width:4px;border-radius:3px;background:var(--c-primary);
}
.section-lead{font-size:16px;line-height:1.85;color:var(--c-text-muted);max-width:720px}
.section-dark .section-lead{color:rgba(255,255,255,.7)}
.section-dark .section-title{color:#fff}

/* ============ 卡片墙 ============ */
.card-wall{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:768px){.card-wall{grid-template-columns:repeat(2,1fr);gap:24px}}
@media(min-width:1024px){.card-wall{grid-template-columns:repeat(3,1fr);gap:26px}}
.wall-card{
  display:flex;flex-direction:column;gap:12px;
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.wall-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(134,217,27,.55)}
.wall-card-icon{
  width:46px;height:46px;border-radius:14px;
  display:grid;place-items:center;font-size:19px;
  background:rgba(18,179,166,.12);color:#4A8A10;
}
.wall-card h3{font-size:20px;line-height:1.45;font-weight:650}
.wall-card p{font-size:14.5px;line-height:1.8;color:var(--c-text-muted)}
.wall-card-link{
  margin-top:auto;padding-top:6px;
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:#4A8A10;
}
.wall-card-link span{transition:transform .2s var(--ease)}
.wall-card-link:hover span{transform:translateX(3px)}
.wall-card-link:hover{color:var(--c-primary-deep);text-decoration:underline;text-underline-offset:3px}

/* ============ 场景图文 ============ */
.scene-grid{display:grid;gap:32px;align-items:center}
@media(min-width:1024px){.scene-grid{grid-template-columns:5fr 7fr;gap:56px}}
.scene-media{
  border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--c-border);
  box-shadow:var(--sh-2);
}
.scene-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.scene-list{display:flex;flex-direction:column;gap:14px;margin-top:26px}
.scene-item{
  display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:flex-start;
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-lg);padding:18px 20px;box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.scene-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(134,217,27,.5)}
.scene-num{
  width:34px;height:34px;border-radius:var(--r-sm);
  display:grid;place-items:center;font-size:13.5px;font-weight:700;
  background:var(--c-primary-soft);color:#3C6E08;flex-shrink:0;
}
.scene-item h3{font-size:17px;font-weight:650;line-height:1.5;margin-bottom:4px}
.scene-item p{font-size:14.5px;line-height:1.8;color:var(--c-text-muted)}

/* ============ 自查清单 ============ */
.checklist{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-xl);padding:clamp(24px,4vw,40px);box-shadow:var(--sh-1);
}
.checklist-grid{display:grid;gap:14px}
@media(min-width:768px){.checklist-grid{grid-template-columns:repeat(2,1fr);gap:16px 32px}}
.check-item{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:flex-start;padding:6px 0}
.check-box{
  width:22px;height:22px;border-radius:7px;margin-top:4px;
  display:grid;place-items:center;font-size:11px;
  background:var(--c-primary);color:var(--c-primary-ink);flex-shrink:0;
}
.check-item span.txt{font-size:15px;line-height:1.8;color:#28332C}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-lg);overflow:hidden;
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.faq-item:hover{border-color:rgba(134,217,27,.5);box-shadow:var(--sh-1)}
.faq-item[open]{border-color:rgba(134,217,27,.65);box-shadow:var(--sh-2)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:17px;font-weight:600;line-height:1.55;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  width:28px;height:28px;border-radius:50%;flex-shrink:0;
  display:grid;place-items:center;font-size:12px;
  background:var(--c-surface-2);color:#4A8A10;
  transition:transform .25s var(--ease),background .25s var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(180deg);background:var(--c-primary-soft)}
.faq-answer{padding:0 24px 22px 24px}
.faq-answer p{
  position:relative;max-width:780px;padding-left:20px;
  font-size:16px;line-height:1.85;color:var(--c-text-muted);
}
.faq-answer p::before{
  content:"";position:absolute;left:0;top:.35em;bottom:.35em;
  width:3px;border-radius:2px;background:var(--c-primary);
}

/* ============ CTA 区 ============ */
.cta-band{
  position:relative;overflow:hidden;background:var(--c-bg-dark);color:#fff;
  padding:clamp(56px,8vw,96px) 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 50% 0%, rgba(134,217,27,.22), transparent 60%);
}
.cta-inner{position:relative;z-index:1;text-align:center;max-width:760px;margin:0 auto}
.cta-inner h2{font-size:clamp(24px,2.8vw,36px);line-height:1.3;font-weight:700;letter-spacing:-.01em}
.cta-inner p{margin-top:16px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.72)}
.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:32px}
@media(max-width:520px){.cta-actions .btn{width:100%}}
.cta-trust{
  display:flex;flex-wrap:wrap;justify-content:center;gap:14px 32px;
  margin-top:34px;padding-top:26px;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:rgba(255,255,255,.6);
}
.cta-trust span{display:inline-flex;align-items:center;gap:7px}
.cta-trust i{color:var(--c-primary)}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-bg-dark);color:rgba(255,255,255,.7);padding-top:clamp(48px,6vw,76px)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff;font-size:18px;font-weight:700}
.footer-brand .brand-mark{width:30px;height:30px;border-radius:9px}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px}
.footer-contact{margin-top:14px;font-size:13px;line-height:1.9;color:rgba(255,255,255,.45)}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.66)}
.footer-links a:hover{color:var(--c-primary)}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  font-size:12.5px;color:rgba(255,255,255,.44);
}

@media(prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  html{scroll-behavior:auto}
}

/* roulang page: category3 */
:root{
    --c-bg:#F5F7F2;
    --c-bg-dark:#0B1410;
    --c-surface:#FFFFFF;
    --c-surface-2:#EDF2E9;
    --c-surface-dark:#13201A;
    --c-primary:#86D91B;
    --c-primary-hover:#74C412;
    --c-primary-active:#5FA80E;
    --c-primary-soft:#EAF7D6;
    --c-primary-ink:#10230A;
    --c-accent:#FF9A2E;
    --c-teal:#12B3A6;
    --c-text:#16201B;
    --c-text-muted:#5E6B63;
    --c-border:#DCE3D8;
    --c-danger:#D93A3A;
    --r-sm:10px;
    --r-md:14px;
    --r-lg:20px;
    --r-xl:28px;
    --r-pill:999px;
    --sh-1:0 1px 2px rgba(11,20,16,.06);
    --sh-2:0 6px 18px rgba(11,20,16,.08);
    --sh-3:0 14px 38px rgba(11,20,16,.14);
    --ease:cubic-bezier(.22,.61,.36,1);
    --container:1200px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  body{
    margin:0;
    background:var(--c-bg);
    color:var(--c-text);
    font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16.5px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    font-variant-numeric:tabular-nums;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease);}
  button{font:inherit;color:inherit;}
  :focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}

  .container{
    width:100%;
    max-width:var(--container);
    margin:0 auto;
    padding:0 20px;
  }
  @media (min-width:768px){ .container{padding:0 32px;} }
  @media (min-width:1440px){ :root{--container:1280px;} }

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(11,20,16,.9);
    backdrop-filter:blur(10px);
    border-bottom:1px solid rgba(255,255,255,.09);
  }
  .header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    min-height:72px;
    padding-top:10px;
    padding-bottom:10px;
  }
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{
    width:36px;height:36px;border-radius:12px;
    background:var(--c-primary);
    display:inline-flex;align-items:center;justify-content:center;
    box-shadow:0 0 0 5px rgba(134,217,27,.12);
  }
  .brand-text{
    color:#fff;font-size:19px;font-weight:700;letter-spacing:.01em;white-space:nowrap;
  }
  .nav-panel{
    display:none;
    align-items:center;
    gap:4px;
    padding:6px;
    background:var(--c-surface);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-1);
  }
  .nav-chip{
    position:relative;
    display:inline-flex;
    align-items:center;
    height:40px;
    padding:0 14px;
    border-radius:var(--r-sm);
    font-size:14px;
    color:#33403A;
    white-space:nowrap;
    transition:background .2s var(--ease),transform .2s var(--ease),color .2s var(--ease);
  }
  .nav-chip:hover{background:var(--c-surface-2);transform:translateY(-2px);color:var(--c-text);}
  .nav-chip.active{
    color:var(--c-primary-active);
    font-weight:600;
    background:var(--c-primary-soft);
  }
  .nav-chip.active::before{
    content:"";
    position:absolute;
    left:0;top:9px;bottom:9px;width:3px;
    border-radius:0 3px 3px 0;
    background:var(--c-primary);
  }
  .header-actions{display:flex;align-items:center;gap:10px;}
  .menu-toggle{
    display:inline-flex;
    align-items:center;justify-content:center;
    width:44px;height:44px;
    border:1px solid rgba(255,255,255,.2);
    border-radius:var(--r-md);
    background:transparent;
    cursor:pointer;
    transition:border-color .2s var(--ease),background .2s var(--ease);
  }
  .menu-toggle:hover{border-color:var(--c-primary);background:rgba(134,217,27,.12);}
  .menu-toggle svg{width:20px;height:20px;}
  .mobile-drawer{
    display:none;
    border-top:1px solid rgba(255,255,255,.09);
    background:#0E1A14;
    padding:16px 0 22px;
  }
  .mobile-drawer.is-open{display:block;}
  .drawer-nav{display:grid;gap:8px;margin-bottom:16px;}
  .drawer-nav .nav-chip{
    color:#E6EDE7;
    background:var(--c-surface-dark);
    height:52px;
    justify-content:flex-start;
    border-radius:var(--r-md);
    padding:0 16px;
    width:100%;
  }
  .drawer-nav .nav-chip:hover{background:#1B2C23;color:#fff;}
  .drawer-nav .nav-chip.active{background:var(--c-primary-soft);color:var(--c-primary-ink);font-weight:600;}
  @media (min-width:1024px){
    .nav-panel{display:flex;}
    .menu-toggle{display:none;}
    .mobile-drawer{display:none !important;}
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    height:48px;
    padding:0 24px;
    border-radius:var(--r-pill);
    border:1px solid transparent;
    font-size:15px;
    font-weight:600;
    cursor:pointer;
    transition:background .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
  }
  .btn-primary{background:var(--c-primary);color:var(--c-primary-ink);box-shadow:var(--sh-1);}
  .btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-2px);box-shadow:var(--sh-2);}
  .btn-primary:active{background:var(--c-primary-active);transform:translateY(0);}
  .btn-outline{border-color:var(--c-border);background:transparent;color:var(--c-text);}
  .btn-outline:hover{border-color:var(--c-primary);color:var(--c-primary-active);transform:translateY(-2px);}
  .btn-outline:active{transform:translateY(0);}
  .btn-outline-light{border-color:rgba(255,255,255,.28);color:#fff;background:transparent;}
  .btn-outline-light:hover{border-color:var(--c-primary);color:var(--c-primary);transform:translateY(-2px);}
  .btn-ghost{
    height:auto;padding:0;border:none;background:none;
    color:var(--c-primary-active);font-weight:600;
  }
  .btn-ghost:hover{color:var(--c-primary-hover);}
  .btn-ghost .arrow{transition:transform .2s var(--ease);}
  .btn-ghost:hover .arrow{transform:translateX(3px);}
  .btn-sm{height:40px;padding:0 18px;font-size:14px;}
  .btn-block{width:100%;}
  .btn[disabled]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

  /* ---------- 首屏 ---------- */
  .page-hero{
    position:relative;
    background:var(--c-bg-dark);
    color:#fff;
    overflow:hidden;
    padding:48px 0 64px;
  }
  .page-hero::before{
    content:"";
    position:absolute;inset:0;
    background-image:
      radial-gradient(circle at 78% 22%, rgba(134,217,27,.20), transparent 55%),
      linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
    background-size:auto, 44px 44px, 44px 44px;
    pointer-events:none;
  }
  .hero-grid{
    position:relative;
    display:grid;
    gap:34px;
    align-items:center;
  }
  .breadcrumb{
    display:flex;align-items:center;gap:8px;
    font-size:14px;color:rgba(255,255,255,.62);
    margin-bottom:18px;
  }
  .breadcrumb a:hover{color:var(--c-primary);}
  .breadcrumb .current{color:rgba(255,255,255,.9);}
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;
    border-radius:var(--r-pill);
    font-size:12.5px;
    letter-spacing:.02em;
    line-height:1.6;
  }
  .badge-primary{
    border:1px solid rgba(134,217,27,.55);
    color:var(--c-primary);
    background:rgba(134,217,27,.10);
  }
  .badge-soft{background:var(--c-primary-soft);color:var(--c-primary-active);}
  .badge-amber{background:rgba(255,154,46,.16);color:#C96B0A;}
  .h1{
    font-size:clamp(30px,4.4vw,48px);
    line-height:1.18;
    font-weight:800;
    letter-spacing:-.01em;
    margin:18px 0 16px;
  }
  .hero-sub{
    font-size:17px;
    line-height:1.75;
    color:rgba(255,255,255,.78);
    max-width:520px;
    margin:0 0 26px;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
  .hero-meta{
    display:flex;flex-wrap:wrap;gap:22px;
    list-style:none;margin:0;padding:0;
    font-size:12.5px;color:rgba(255,255,255,.6);
  }
  .hero-meta li{display:inline-flex;align-items:center;gap:7px;}
  .hero-meta svg{width:15px;height:15px;flex-shrink:0;}
  .hero-visual{
    position:relative;
    border-radius:var(--r-xl);
    overflow:hidden;
    box-shadow:var(--sh-3);
    border:1px solid rgba(255,255,255,.10);
    min-height:230px;
  }
  .hero-visual img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
  .hero-visual::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(180deg, rgba(11,20,16,.05), rgba(11,20,16,.45));
  }
  @media (min-width:1024px){
    .page-hero{padding:64px 0 84px;}
    .hero-grid{grid-template-columns:7fr 5fr;gap:48px;}
    .hero-visual img{aspect-ratio:5/4;}
  }

  /* ---------- 通用板块 ---------- */
  .section{padding:clamp(56px,8vw,104px) 0;}
  .section-alt{background:var(--c-surface-2);}
  .section-white{background:var(--c-surface);}
  .section-dark{background:var(--c-bg-dark);color:#fff;}
  .section-head{max-width:760px;margin-bottom:44px;}
  .eyebrow{
    display:inline-block;
    font-size:12.5px;
    letter-spacing:.14em;
    color:var(--c-primary-active);
    margin-bottom:12px;
  }
  .section-dark .eyebrow{color:var(--c-primary);}
  .h2{
    font-size:clamp(24px,2.6vw,34px);
    line-height:1.3;
    font-weight:700;
    margin:0 0 14px;
    position:relative;
    padding-left:16px;
  }
  .h2::before{
    content:"";
    position:absolute;left:0;top:6px;bottom:6px;width:4px;
    border-radius:3px;background:var(--c-primary);
  }
  .section-sub{color:var(--c-text-muted);font-size:16px;margin:0;}
  .section-dark .section-sub{color:rgba(255,255,255,.7);}

  /* ---------- 问题类型卡片 ---------- */
  .grid-cards{
    display:grid;
    gap:20px;
    grid-template-columns:1fr;
  }
  @media (min-width:640px){ .grid-cards{grid-template-columns:repeat(2,1fr);gap:22px;} }
  @media (min-width:1024px){ .grid-cards{grid-template-columns:repeat(3,1fr);gap:24px;} }
  .info-card{
    background:var(--c-surface);
    border:1px solid var(--c-border);
    border-radius:var(--r-lg);
    padding:24px;
    box-shadow:var(--sh-1);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .info-card:hover{
    transform:translateY(-3px);
    box-shadow:var(--sh-2);
    border-color:rgba(134,217,27,.5);
  }
  .card-icon{
    width:44px;height:44px;border-radius:var(--r-md);
    background:rgba(18,179,166,.12);
    color:var(--c-teal);
    display:inline-flex;align-items:center;justify-content:center;
    margin-bottom:16px;
  }
  .card-icon svg{width:22px;height:22px;}
  .h3{font-size:19px;line-height:1.45;font-weight:650;margin:0 0 10px;}
  .card-text{font-size:14.5px;line-height:1.8;color:var(--c-text-muted);margin:0 0 16px;}
  .card-link{font-size:14px;font-weight:600;color:var(--c-primary-active);display:inline-flex;align-items:center;gap:6px;}
  .card-link:hover{color:var(--c-primary-hover);}
  .card-link:hover .arrow{transform:translateX(3px);}
  .card-link .arrow{transition:transform .2s var(--ease);}

  /* ---------- 时间轴 ---------- */
  .timeline{
    list-style:none;
    margin:0;
    padding:6px 0;
    position:relative;
  }
  .timeline::before{
    content:"";
    position:absolute;
    left:21px;
    top:8px;bottom:8px;
    width:2px;
    background:linear-gradient(180deg, rgba(134,217,27,.9), rgba(18,179,166,.35), rgba(134,217,27,.15));
    border-radius:2px;
  }
  .tl-item{
    position:relative;
    display:grid;
    grid-template-columns:44px 1fr;
    gap:18px;
    align-items:start;
    padding-bottom:28px;
  }
  .tl-item:last-child{padding-bottom:0;}
  .tl-dot{
    grid-column:1;
    width:44px;height:44px;
    border-radius:var(--r-pill);
    background:var(--c-surface);
    border:2px solid var(--c-primary);
    color:var(--c-primary-active);
    display:inline-flex;align-items:center;justify-content:center;
    font-size:13.5px;font-weight:700;
    box-shadow:0 0 0 6px rgba(134,217,27,.10);
    z-index:1;
  }
  .tl-card{
    grid-column:2;
    background:var(--c-surface);
    border:1px solid var(--c-border);
    border-radius:var(--r-lg);
    padding:22px 24px;
    box-shadow:var(--sh-1);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .tl-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(134,217,27,.5);}
  .tl-title{font-size:19px;font-weight:650;margin:0 0 8px;}
  .tl-text{font-size:14.5px;line-height:1.8;color:var(--c-text-muted);margin:0 0 12px;}
  .tl-tags{display:flex;flex-wrap:wrap;gap:8px;}
  @media (min-width:1024px){
    .timeline::before{left:50%;transform:translateX(-1px);}
    .tl-item{
      grid-template-columns:1fr 56px 1fr;
      gap:0;
      align-items:center;
      padding-bottom:34px;
    }
    .tl-dot{grid-column:2;justify-self:center;width:56px;height:56px;font-size:15px;}
    .tl-card{grid-column:1;margin-right:30px;text-align:right;}
    .tl-item.right .tl-card{grid-column:3;margin-right:0;margin-left:30px;text-align:left;}
    .tl-item.right .tl-tags{justify-content:flex-start;}
    .tl-tags{justify-content:flex-end;}
  }

  /* ---------- 场景图文 ---------- */
  .scene-grid{display:grid;gap:32px;align-items:center;}
  .scene-media{
    border-radius:var(--r-xl);
    overflow:hidden;
    border:1px solid var(--c-border);
    box-shadow:var(--sh-2);
  }
  .scene-media img{width:100%;aspect-ratio:16/11;object-fit:cover;}
  .scene-list{list-style:none;margin:0;padding:0;display:grid;gap:14px;}
  .scene-item{
    display:flex;gap:14px;
    background:var(--c-surface);
    border:1px solid var(--c-border);
    border-radius:var(--r-md);
    padding:16px 18px;
    box-shadow:var(--sh-1);
    transition:border-color .2s var(--ease),transform .2s var(--ease);
  }
  .scene-item:hover{border-color:rgba(134,217,27,.5);transform:translateY(-2px);}
  .scene-num{
    flex-shrink:0;
    width:30px;height:30px;border-radius:9px;
    background:var(--c-surface-2);
    color:var(--c-primary-active);
    font-size:13px;font-weight:700;
    display:inline-flex;align-items:center;justify-content:center;
  }
  .scene-item h3{font-size:16px;font-weight:650;margin:0 0 4px;}
  .scene-item p{font-size:14px;line-height:1.75;color:var(--c-text-muted);margin:0;}
  @media (min-width:1024px){
    .scene-grid{grid-template-columns:5fr 7fr;gap:48px;}
  }

  /* ---------- 深色提示卡 ---------- */
  .note-grid{display:grid;gap:20px;grid-template-columns:1fr;}
  @media (min-width:768px){ .note-grid{grid-template-columns:repeat(3,1fr);gap:24px;} }
  .note-card{
    background:var(--c-surface-dark);
    border:1px solid rgba(134,217,27,.18);
    border-radius:var(--r-lg);
    padding:24px;
    transition:border-color .22s var(--ease),transform .22s var(--ease);
  }
  .note-card:hover{border-color:rgba(134,217,27,.45);transform:translateY(-3px);}
  .note-card .h3{color:#fff;}
  .note-card p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.7);margin:0;}

  /* ---------- FAQ ---------- */
  .faq{display:grid;gap:12px;max-width:880px;}
  .faq-item{
    background:var(--c-surface);
    border:1px solid var(--c-border);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-1);
    overflow:hidden;
    transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
  }
  .faq-item:hover{border-color:rgba(134,217,27,.45);}
  .faq-item.is-open{border-color:rgba(134,217,27,.6);box-shadow:var(--sh-2);}
  .faq-q{
    width:100%;
    min-height:60px;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 22px;
    background:none;border:none;
    text-align:left;
    font-size:17px;font-weight:600;
    cursor:pointer;
  }
  .faq-icon{
    flex-shrink:0;
    width:26px;height:26px;
    display:inline-flex;align-items:center;justify-content:center;
    color:var(--c-primary-active);
    transition:transform .25s var(--ease);
  }
  .faq-icon svg{width:18px;height:18px;}
  .faq-item.is-open .faq-icon{transform:rotate(180deg);}
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .3s var(--ease);
  }
  .faq-a-inner{
    padding:0 22px 22px 22px;
    border-left:3px solid var(--c-primary);
    margin-left:22px;
    padding-left:18px;
    max-width:760px;
  }
  .faq-a-inner p{font-size:16px;line-height:1.85;color:var(--c-text-muted);margin:0;}

  /* ---------- CTA ---------- */
  .cta-band{
    position:relative;
    background:var(--c-bg-dark);
    color:#fff;
    padding:clamp(56px,8vw,96px) 0;
    overflow:hidden;
  }
  .cta-band::before{
    content:"";
    position:absolute;inset:0;
    background:radial-gradient(circle at 50% 0%, rgba(134,217,27,.18), transparent 60%);
    pointer-events:none;
  }
  .cta-inner{position:relative;text-align:center;max-width:720px;margin:0 auto;}
  .cta-inner .h2{padding-left:0;display:inline-block;color:#fff;}
  .cta-inner .h2::before{display:none;}
  .cta-text{color:rgba(255,255,255,.72);font-size:16px;margin:0 0 28px;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-bottom:30px;}
  .trust-row{
    display:flex;flex-wrap:wrap;gap:22px;justify-content:center;
    list-style:none;margin:0;padding:22px 0 0;
    border-top:1px solid rgba(255,255,255,.12);
    font-size:13px;color:rgba(255,255,255,.66);
  }
  .trust-row li{display:inline-flex;align-items:center;gap:7px;}
  .trust-row svg{width:15px;height:15px;color:var(--c-primary);}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:#08110D;
    color:rgba(255,255,255,.72);
    padding:64px 0 26px;
    border-top:1px solid rgba(255,255,255,.08);
  }
  .footer-grid{
    display:grid;
    gap:34px;
    grid-template-columns:1fr;
    padding-bottom:40px;
    border-bottom:1px solid rgba(255,255,255,.09);
  }
  @media (min-width:640px){ .footer-grid{grid-template-columns:repeat(2,1fr);} }
  @media (min-width:1024px){ .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;} }
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
  .footer-brand span:last-child{color:#fff;font-size:18px;font-weight:700;}
  .footer-desc{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);margin:0 0 16px;max-width:340px;}
  .footer-contact{font-size:13px;line-height:1.9;color:rgba(255,255,255,.5);margin:0;}
  .footer-contact span{color:rgba(255,255,255,.78);}
  .footer-title{font-size:15px;font-weight:600;color:#fff;margin:0 0 16px;}
  .footer-links{display:grid;gap:10px;}
  .footer-links a{font-size:14px;color:rgba(255,255,255,.66);}
  .footer-links a:hover{color:var(--c-primary);}
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
    padding-top:22px;
    font-size:12.5px;
    color:rgba(255,255,255,.45);
  }

  @media (prefers-reduced-motion: reduce){
    *{animation:none !important;transition:none !important;}
  }

/* roulang page: category4 */
:root{
    --c-bg:#F5F7F2;
    --c-bg-dark:#0B1410;
    --c-surface:#FFFFFF;
    --c-surface-2:#EDF2E9;
    --c-surface-dark:#13201A;
    --c-primary:#86D91B;
    --c-primary-hover:#74C412;
    --c-primary-active:#5FA80E;
    --c-primary-soft:#EAF7D6;
    --c-primary-ink:#10230A;
    --c-primary-deep:#3D7A0F;
    --c-accent:#FF9A2E;
    --c-teal:#12B3A6;
    --c-text:#16201B;
    --c-text-muted:#5E6B63;
    --c-border:#DCE3D8;
    --c-danger:#D93A3A;
    --r-sm:10px;
    --r-md:14px;
    --r-lg:20px;
    --r-xl:28px;
    --r-pill:999px;
    --sh-1:0 1px 2px rgba(11,20,16,.06);
    --sh-2:0 6px 18px rgba(11,20,16,.08);
    --sh-3:0 14px 38px rgba(11,20,16,.14);
    --ease:cubic-bezier(.22,.61,.36,1);
  }

  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    font-size:16.5px;
    line-height:1.85;
    color:var(--c-text);
    background:var(--c-bg);
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block;height:auto}
  a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
  button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  time,.num{font-variant-numeric:tabular-nums}
  ::selection{background:var(--c-primary-soft);color:#22380C}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  @media (min-width:768px){ .container{padding:0 32px} }
  @media (min-width:1440px){ .container{max-width:1280px} }

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(11,20,16,.88);
    -webkit-backdrop-filter:blur(10px);
    backdrop-filter:blur(10px);
    border-bottom:1px solid rgba(255,255,255,.10);
  }
  .header-inner{display:flex;align-items:center;gap:16px;height:72px}
  .brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:19px;letter-spacing:-.01em;flex:0 0 auto}
  .brand-mark{
    width:34px;height:34px;border-radius:11px;background:var(--c-primary);
    display:grid;place-items:center;flex:0 0 auto;
    box-shadow:0 4px 14px rgba(134,217,27,.35);
  }
  .brand-text{white-space:nowrap}
  @media (max-width:520px){ .brand{font-size:16px} .brand-mark{width:30px;height:30px;border-radius:9px} }

  .nav-panel{
    display:none;
    align-items:center;gap:4px;
    background:rgba(255,255,255,.96);
    border-radius:var(--r-lg);
    padding:6px;
    box-shadow:var(--sh-1);
    margin-left:8px;
  }
  .nav-chip{
    position:relative;display:inline-flex;align-items:center;
    min-height:42px;padding:8px 14px;border-radius:var(--r-sm);
    font-size:14px;line-height:1.4;color:var(--c-text);white-space:nowrap;
    transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
  }
  .nav-chip:hover{background:var(--c-surface-2);transform:translateY(-2px)}
  .nav-chip:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
  .nav-chip.active{background:var(--c-primary-soft);color:#2C5C08;font-weight:600}
  .nav-chip.active::before{
    content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
    width:3px;height:20px;border-radius:2px;background:var(--c-primary);
  }
  .header-cta{margin-left:auto;display:none}

  .nav-toggle{
    margin-left:auto;width:44px;height:44px;border-radius:var(--r-sm);
    display:grid;place-items:center;background:rgba(255,255,255,.10);
    border:1px solid rgba(255,255,255,.14);color:#fff;
  }
  .nav-toggle:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
  .nav-toggle span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;position:relative}
  .nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;border-radius:2px}
  .nav-toggle span::before{top:-6px}
  .nav-toggle span::after{top:6px}

  .mobile-drawer{
    position:fixed;left:0;right:0;top:72px;bottom:0;z-index:55;
    background:rgba(11,20,16,.98);
    padding:20px 20px 32px;
    display:none;flex-direction:column;gap:10px;overflow-y:auto;
  }
  .mobile-drawer.open{display:flex}
  .drawer-chip{
    display:flex;align-items:center;min-height:52px;padding:0 18px;
    border-radius:var(--r-md);background:rgba(255,255,255,.06);
    color:#fff;font-size:15px;transition:background .2s var(--ease);
  }
  .drawer-chip:hover{background:rgba(255,255,255,.12)}
  .drawer-chip.active{background:var(--c-primary-soft);color:#2C5C08;font-weight:600}
  .drawer-cta{margin-top:8px}

  @media (min-width:1024px){
    .nav-panel{display:flex}
    .header-cta{display:inline-flex}
    .nav-toggle{display:none}
    .mobile-drawer{display:none !important}
  }

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:48px;padding:0 24px;border-radius:var(--r-pill);
    font-size:15px;font-weight:600;line-height:1;
    transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
  .btn-primary{background:var(--c-primary);color:var(--c-primary-ink);box-shadow:var(--sh-1)}
  .btn-primary:hover{background:var(--c-primary-hover);transform:translateY(-2px);box-shadow:var(--sh-2)}
  .btn-primary:active{background:var(--c-primary-active);transform:translateY(0);box-shadow:var(--sh-1)}
  .btn-primary:disabled{opacity:.45;cursor:not-allowed;transform:none}
  .btn-ghost{background:transparent;border:1px solid var(--c-border);color:var(--c-text)}
  .btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary-deep);transform:translateY(-2px)}
  .btn-ghost:active{transform:translateY(0)}
  .btn-on-dark{background:transparent;border:1px solid rgba(255,255,255,.26);color:#fff}
  .btn-on-dark:hover{border-color:var(--c-primary);color:var(--c-primary)}
  .btn-sm{min-height:44px;padding:0 18px;font-size:14px}
  .btn-block{width:100%}
  @media (max-width:520px){
    .btn{width:100%;min-height:52px}
    .btn-inline-sm{width:auto}
  }

  /* ============ 分类页 Hero ============ */
  .hero-cat{position:relative;background:var(--c-bg-dark);color:#fff;overflow:hidden}
  .hero-cat::before{
    content:"";position:absolute;inset:0;
    background-image:
      linear-gradient(100deg,rgba(11,20,16,.95) 0%,rgba(11,20,16,.82) 46%,rgba(11,20,16,.46) 100%),
      url('/assets/images/backpic/back-2.webp');
    background-size:cover;background-position:center;
  }
  .hero-cat::after{
    content:"";position:absolute;inset:0;
    background-image:radial-gradient(circle at 78% 26%,rgba(134,217,27,.18),transparent 58%);
    pointer-events:none;
  }
  .hero-cat-inner{position:relative;z-index:2;display:grid;gap:32px;align-items:center;padding:48px 0 56px;min-height:340px}
  .breadcrumb{font-size:14px;color:rgba(255,255,255,.62);display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-bottom:18px}
  .breadcrumb a:hover{color:var(--c-primary)}
  .breadcrumb .sep{color:rgba(255,255,255,.32)}
  .breadcrumb .cur{color:rgba(255,255,255,.86)}
  .hero-cat h1{
    font-size:clamp(30px,4.4vw,50px);line-height:1.18;font-weight:800;
    letter-spacing:-.01em;margin-bottom:16px;
  }
  .hero-cat .hero-lead{font-size:16.5px;line-height:1.8;color:rgba(255,255,255,.78);max-width:620px}
  .hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
  .pill-tag{
    display:inline-flex;align-items:center;gap:7px;
    min-height:32px;padding:0 14px;border-radius:var(--r-pill);
    font-size:12.5px;letter-spacing:.02em;
    background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:rgba(255,255,255,.86);
  }
  .pill-tag .dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary)}
  .hero-visual{border-radius:var(--r-xl);overflow:hidden;border:1px solid rgba(255,255,255,.14);box-shadow:var(--sh-3)}
  .hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover}
  @media (min-width:1024px){
    .hero-cat-inner{grid-template-columns:7fr 5fr;gap:44px;padding:56px 0 64px;min-height:368px}
  }

  /* ============ 区块通用 ============ */
  .section{padding:clamp(56px,8vw,112px) 0}
  .section-tight{padding:clamp(44px,6vw,84px) 0}
  .section-alt{background:var(--c-surface-2)}
  .section-dark{background:var(--c-bg-dark);color:#fff}
  .section-head{max-width:760px;margin-bottom:clamp(28px,4vw,48px)}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12.5px;letter-spacing:.08em;text-transform:uppercase;
    color:var(--c-primary-deep);background:var(--c-primary-soft);
    padding:6px 14px;border-radius:var(--r-pill);font-weight:600;margin-bottom:16px;
  }
  .section-dark .eyebrow{background:rgba(134,217,27,.14);color:var(--c-primary)}
  .section-title{position:relative;padding-left:16px;font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;letter-spacing:-.01em}
  .section-title::before{
    content:"";position:absolute;left:0;top:.28em;width:4px;height:.86em;
    border-radius:3px;background:var(--c-primary);
  }
  .section-desc{margin-top:16px;color:var(--c-text-muted);font-size:16px;max-width:700px}
  .section-dark .section-desc{color:rgba(255,255,255,.72)}

  /* ============ 速览（左图右列） ============ */
  .overview-grid{display:grid;gap:28px;align-items:center}
  @media (min-width:1024px){ .overview-grid{grid-template-columns:5fr 7fr;gap:44px} }
  .figure-card{
    border-radius:var(--r-xl);overflow:hidden;border:1px solid var(--c-border);
    background:var(--c-surface-2);box-shadow:var(--sh-2);
  }
  .figure-card img{width:100%;aspect-ratio:16/11;object-fit:cover}
  .num-list{display:grid;gap:16px}
  .num-list li{
    display:grid;grid-template-columns:40px 1fr;gap:16px;align-items:start;
    background:var(--c-surface);border:1px solid var(--c-border);
    border-radius:var(--r-lg);padding:18px 20px;box-shadow:var(--sh-1);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .num-list li:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(134,217,27,.45)}
  .num-idx{
    width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
    background:var(--c-primary-soft);color:#2C5C08;font-weight:700;font-size:14px;
  }
  .num-list h3{font-size:17px;font-weight:650;line-height:1.45;margin-bottom:4px}
  .num-list p{font-size:14.5px;line-height:1.75;color:var(--c-text-muted)}

  /* ============ 对照表 ============ */
  .table-wrap{
    background:var(--c-surface);border:1px solid var(--c-border);
    border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  }
  .table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
  table.cmp{width:100%;min-width:660px;border-collapse:collapse}
  table.cmp caption{
    caption-side:top;text-align:left;padding:18px 22px 10px;
    font-size:14px;color:var(--c-text-muted);
  }
  table.cmp thead th{
    background:var(--c-surface-2);text-align:left;
    font-size:13.5px;font-weight:700;letter-spacing:.03em;color:#3B4A40;
    height:52px;padding:0 22px;border-bottom:1px solid var(--c-border);
  }
  table.cmp thead th:first-child{width:34%}
  table.cmp tbody tr{background:var(--c-surface);transition:background .18s var(--ease)}
  table.cmp tbody tr:nth-child(even){background:#FAFCF7}
  table.cmp tbody tr:hover{background:var(--c-primary-soft)}
  table.cmp tbody td{
    height:52px;padding:14px 22px;border-bottom:1px solid var(--c-border);
    font-size:15px;line-height:1.7;vertical-align:top;
  }
  table.cmp tbody tr:last-child td{border-bottom:0}
  table.cmp tbody td:first-child{
    width:34%;font-weight:600;color:var(--c-text);background:inherit;
    position:sticky;left:0;z-index:2;
    box-shadow:1px 0 0 var(--c-border);
  }
  .table-note{
    display:flex;align-items:center;gap:8px;margin-top:14px;
    font-size:13px;color:var(--c-text-muted);
  }
  .table-note .ico{
    width:22px;height:22px;border-radius:7px;display:grid;place-items:center;
    background:var(--c-primary-soft);color:#2C5C08;font-size:12px;font-weight:700;flex:0 0 auto;
  }

  /* ============ 深色提示卡 ============ */
  .dark-grid{display:grid;gap:20px}
  @media (min-width:768px){ .dark-grid{grid-template-columns:repeat(2,1fr);gap:24px} }
  .dark-card{
    background:var(--c-surface-dark);
    border:1px solid rgba(134,217,27,.18);
    border-radius:var(--r-lg);
    padding:24px;
    transition:transform .22s var(--ease),border-color .22s var(--ease);
  }
  .dark-card:hover{transform:translateY(-3px);border-color:rgba(134,217,27,.45)}
  .dark-card h3{font-size:19px;font-weight:650;color:#fff;line-height:1.45;margin-bottom:10px}
  .dark-card p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.72)}
  .tag-accent{
    display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
    background:rgba(255,154,46,.16);color:#FFB765;font-size:12.5px;font-weight:600;letter-spacing:.02em;margin-bottom:14px;
  }
  .tag-lime{
    display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
    background:rgba(134,217,27,.16);color:var(--c-primary);font-size:12.5px;font-weight:600;letter-spacing:.02em;margin-bottom:14px;
  }

  /* ============ 步骤条 ============ */
  .flow{display:grid;gap:20px;position:relative}
  @media (min-width:768px){ .flow{grid-template-columns:repeat(2,1fr);gap:24px} }
  @media (min-width:1024px){ .flow{grid-template-columns:repeat(4,1fr)} }
  .flow-card{
    background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
    padding:22px;box-shadow:var(--sh-1);
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  }
  .flow-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(134,217,27,.45)}
  .flow-num{
    font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--c-primary-deep);
    background:var(--c-primary-soft);display:inline-flex;align-items:center;height:28px;
    padding:0 12px;border-radius:var(--r-pill);margin-bottom:14px;
  }
  .flow-card h3{font-size:18px;font-weight:650;margin-bottom:8px}
  .flow-card p{font-size:14.5px;line-height:1.75;color:var(--c-text-muted)}

  /* ============ FAQ ============ */
  .faq-list{display:grid;gap:12px;max-width:920px}
  .faq-item{
    background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
    overflow:hidden;box-shadow:var(--sh-1);
    transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
  }
  .faq-item.is-open{border-color:rgba(134,217,27,.55);box-shadow:var(--sh-2)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:18px 22px;min-height:56px;text-align:left;
    font-size:17px;font-weight:600;line-height:1.5;color:var(--c-text);
  }
  .faq-q:focus-visible{outline:2px solid var(--c-primary);outline-offset:-4px;border-radius:var(--r-lg)}
  .faq-sign{
    flex:0 0 auto;width:30px;height:30px;border-radius:9px;
    display:grid;place-items:center;background:var(--c-surface-2);
    color:var(--c-primary-deep);font-size:17px;font-weight:600;
    transition:transform .26s var(--ease),background .2s var(--ease);
  }
  .faq-item.is-open .faq-sign{transform:rotate(180deg);background:var(--c-primary-soft)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
  .faq-a-inner{
    margin:0 0 0 22px;padding:0 22px 22px 20px;
    border-left:3px solid var(--c-primary);
    font-size:16px;line-height:1.85;color:var(--c-text-muted);max-width:760px;
  }

  /* ============ CTA 条 ============ */
  .cta-band{position:relative;background:var(--c-bg-dark);color:#fff;overflow:hidden;padding:clamp(56px,8vw,96px) 0}
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background-image:radial-gradient(circle at 50% 0%,rgba(134,217,27,.16),transparent 62%);
    pointer-events:none;
  }
  .cta-inner{position:relative;z-index:2;text-align:center;max-width:720px;margin:0 auto}
  .cta-inner h2{font-size:clamp(24px,3.2vw,36px);line-height:1.3;font-weight:700;letter-spacing:-.01em}
  .cta-inner p{margin-top:16px;color:rgba(255,255,255,.74);font-size:16px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:30px}
  .cta-lines{display:flex;align-items:center;gap:16px;margin-top:34px;justify-content:center}
  .cta-lines .line{height:1px;width:64px;background:linear-gradient(90deg,transparent,rgba(134,217,27,.5),transparent)}
  .cta-foot{display:flex;flex-wrap:wrap;gap:14px 28px;justify-content:center;margin-top:30px}
  .cta-foot span{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7)}
  .cta-foot .dot{width:6px;height:6px;border-radius:50%;background:var(--c-primary)}

  /* ============ 页脚 ============ */
  .site-footer{
    background:var(--c-bg-dark);color:rgba(255,255,255,.72);
    padding:clamp(48px,7vw,80px) 0 0;
    border-top:1px solid rgba(255,255,255,.08);
  }
  .footer-grid{display:grid;gap:34px;grid-template-columns:1fr;padding-bottom:44px}
  @media (min-width:768px){ .footer-grid{grid-template-columns:1fr 1fr} }
  @media (min-width:1024px){ .footer-grid{grid-template-columns:1.7fr 1fr 1fr 1fr;gap:40px} }
  .footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:14px}
  .footer-desc{font-size:14px;line-height:1.8;max-width:330px;color:rgba(255,255,255,.66)}
  .footer-contact{margin-top:14px;font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.55)}
  .footer-contact span{color:rgba(255,255,255,.78)}
  .footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
  .footer-links{display:grid;gap:10px}
  .footer-links a{font-size:14px;color:rgba(255,255,255,.7);min-height:24px;display:inline-flex;align-items:center}
  .footer-links a:hover{color:var(--c-primary)}
  .footer-links a:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
  .footer-bottom{
    border-top:1px solid rgba(255,255,255,.10);
    padding:20px 0;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
    font-size:12.5px;letter-spacing:.02em;color:rgba(255,255,255,.55);
  }

  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important}
    html{scroll-behavior:auto}
    .num-list li:hover,.dark-card:hover,.flow-card:hover,.btn:hover{transform:none}
  }