/* roulang page: index */
:root{
  --ink:#0B2A22;
  --ink-soft:#123A30;
  --lime:#C8F24C;
  --lime-deep:#9CCB21;
  --orange:#FF6A3D;
  --text:#111614;
  --muted:#4A534E;
  --fog:#8B948F;
  --line:#E5E3DA;
  --card:#FFFFFF;
  --bg:#F6F5F0;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --sh-1:0 1px 2px rgba(11,42,34,.05);
  --sh-2:0 12px 32px rgba(11,42,34,.10);
  --sh-3:0 24px 48px rgba(11,42,34,.14);
  --sec-gap:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"Noto Sans SC","Inter",system-ui,-apple-system,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;font-weight:400;
  text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--ink);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--lime-deep)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;letter-spacing:-.02em}
p{margin:0}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-family:"Inter",system-ui,sans-serif}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .25s ease,height .25s ease}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.nav-inner{display:flex;align-items:center;gap:32px;height:72px;transition:height .25s ease}
.site-header.is-scrolled .nav-inner{height:60px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{width:34px;height:34px;border-radius:9px;background:var(--ink);display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto}
.logo-mark svg{width:20px;height:20px;display:block}
.logo-text{font-size:17px;font-weight:900;color:var(--ink);letter-spacing:-.01em;white-space:nowrap}
.logo:hover .logo-text{color:var(--ink)}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-links a{position:relative;font-size:15px;font-weight:500;color:var(--muted);padding:6px 0}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .2s cubic-bezier(.2,.7,.3,1)}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink);font-weight:700}
.nav-links a.active::after{transform:scaleX(1)}
.nav-cta{flex:0 0 auto}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);background:#fff;color:var(--ink);align-items:center;justify-content:center;cursor:pointer}
.nav-toggle i{font-size:17px}
.drawer{position:fixed;left:0;right:0;top:72px;bottom:0;background:var(--bg);z-index:70;padding:32px 24px 40px;overflow-y:auto;opacity:0;transform:translateY(-10px);pointer-events:none;transition:opacity .22s ease,transform .22s ease;display:flex;flex-direction:column}
.drawer.open{opacity:1;transform:none;pointer-events:auto}
.drawer a{font-size:20px;font-weight:700;color:var(--ink);padding:14px 0;border-bottom:1px solid var(--line)}
.drawer .drawer-cta{margin-top:32px}
.drawer .drawer-cta .btn{width:100%;justify-content:center}
body.no-scroll{overflow:hidden}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;transition:transform .2s cubic-bezier(.2,.7,.3,1),background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;white-space:nowrap}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--lime-deep);color:var(--ink);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--bg);transform:translateY(-2px)}
.btn-light{background:transparent;color:var(--bg);border-color:rgba(246,245,240,.42)}
.btn-light:hover{background:var(--bg);color:var(--ink);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--ink);padding-bottom:2px;position:relative}
.btn-text::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--lime-deep);transform:scaleX(0);transform-origin:left;transition:transform .2s cubic-bezier(.2,.7,.3,1)}
.btn-text:hover::after{transform:scaleX(1)}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.14em;line-height:1.4}
.badge-cat{background:rgba(11,42,34,.08);color:var(--ink)}
.badge-state{background:rgba(255,106,61,.14);color:#C4431C}
.badge-lime{background:var(--lime);color:var(--ink)}
.kicker{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--muted)}

/* ---------- sections ---------- */
.sec{padding:var(--sec-gap) 0}
.sec-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:720px;margin-bottom:48px}
.sec-title{font-size:clamp(1.5rem,2.6vw,2.25rem);line-height:1.2;padding-left:16px;position:relative;margin-bottom:14px}
.sec-title::before{content:"";position:absolute;left:0;top:.22em;width:4px;height:24px;border-radius:2px;background:var(--lime)}
.sec-sub{color:var(--muted);font-size:16px;max-width:34em;line-height:1.85}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}

/* ---------- hero ---------- */
.hero{position:relative;padding:72px 0 0;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:56px;align-items:center}
.hero-tag{margin-bottom:20px}
.hero h1{font-size:clamp(2rem,4.6vw,3.75rem);line-height:1.12;font-weight:800;letter-spacing:-.02em;margin-bottom:22px}
.hero-sub{font-size:17px;line-height:1.85;color:var(--muted);max-width:32em;margin-bottom:32px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.hero-note{margin-top:18px;font-size:14px;color:var(--fog)}
.hero-visual{position:relative}
.hero-shot{border-radius:var(--radius-img);overflow:hidden;background:#E5E3DA;box-shadow:var(--sh-2)}
.hero-shot img{width:100%;aspect-ratio:16/11;object-fit:cover}
.float-card{position:absolute;left:-32px;bottom:-32px;width:300px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--sh-3);padding:22px}
.float-card .fc-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.fc-title{font-size:14px;font-weight:700;color:var(--ink)}
.fc-row{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);padding:9px 0;border-bottom:1px dashed var(--line)}
.fc-row:last-of-type{border-bottom:0}
.fc-row b{color:var(--ink);font-weight:700}
.fc-bar{margin-top:16px;height:6px;border-radius:999px;background:rgba(11,42,34,.08);overflow:hidden}
.fc-bar span{display:block;height:100%;width:76%;background:var(--lime);border-radius:999px}
.trust{margin-top:64px;border:1px solid var(--line);border-radius:var(--radius-card);background:#fff;display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden}
.trust-cell{padding:28px 24px;border-right:1px solid var(--line)}
.trust-cell:last-child{border-right:0}
.trust-num{font-size:clamp(1.8rem,3vw,2.5rem);font-weight:800;color:var(--ink);line-height:1.1;letter-spacing:-.02em}
.trust-num i{color:var(--lime-deep);font-style:normal}
.trust-label{margin-top:8px;font-size:13px;color:var(--fog)}

/* ---------- features ---------- */
.feat-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.feat-sticky{position:sticky;top:104px}
.feat-sticky p{color:var(--muted);font-size:15.5px;line-height:1.85;margin-top:14px;max-width:30em}
.feat-cols{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.feat-col-b{margin-top:32px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--sh-1);transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease,border-color .2s ease;overflow:hidden}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(200,242,76,.6)}
.card-body{padding:26px}
.card-cover{aspect-ratio:4/3;background:#E5E3DA;overflow:hidden}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .2s cubic-bezier(.2,.7,.3,1)}
.card:hover .card-cover img{transform:scale(1.04)}
.card h3{font-size:1.25rem;font-weight:600;line-height:1.4;margin:14px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card p{font-size:14.5px;line-height:1.8;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card .btn-text{margin-top:16px}
.feat-icon{width:46px;height:46px;border-radius:12px;background:rgba(11,42,34,.06);color:var(--ink);display:inline-flex;align-items:center;justify-content:center;font-size:18px}
.feat-compact .card-body{padding:22px}

/* ---------- scenes ---------- */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:40px 0;border-top:1px solid var(--line)}
.scene:first-of-type{border-top:0;padding-top:0}
.scene-num{font-size:3rem;font-weight:900;line-height:1;color:transparent;-webkit-text-stroke:1.5px var(--lime);letter-spacing:-.02em;font-family:"Inter",system-ui,sans-serif}
.scene h3{font-size:1.35rem;font-weight:700;margin:16px 0 8px}
.scene .who{font-size:13px;color:var(--fog);letter-spacing:.06em;margin-bottom:12px}
.scene p{color:var(--muted);font-size:15.5px;line-height:1.85;margin-bottom:18px;max-width:34em}
.scene-media{border-radius:var(--radius-img);overflow:hidden;background:#E5E3DA}
.scene-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.scene.flip .scene-text{order:2}
.scene.flip .scene-media{order:1}

/* ---------- cases ---------- */
.case-grid{display:grid;grid-template-columns:8fr 4fr;gap:24px}
.case-main .card-cover{aspect-ratio:16/9}
.case-side{display:grid;gap:24px}
.case-highlight{margin-top:14px;font-size:14px;color:var(--muted)}
.case-highlight b{font-family:"Inter",system-ui,sans-serif;font-variant-numeric:tabular-nums;font-size:22px;color:var(--ink);font-weight:800;margin-right:6px}
.case-highlight b em{color:var(--lime-deep);font-style:normal}

/* ---------- pricing ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.price-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--sh-1);padding:32px;position:relative;transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s ease}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.price-card.featured{background:var(--ink);border-color:var(--lime);transform:translateY(-12px);box-shadow:var(--sh-3);padding-top:44px}
.price-card.featured:hover{transform:translateY(-16px)}
.price-card.featured h3,.price-card.featured .price-num{color:#F6F5F0}
.price-card.featured .price-desc,.price-card.featured li{color:rgba(246,245,240,.82)}
.price-card.featured li{border-color:rgba(246,245,240,.16)}
.price-flag{position:absolute;top:18px;right:24px}
.price-card h3{font-size:1.15rem;font-weight:700;margin-bottom:6px}
.price-desc{font-size:13.5px;color:var(--fog);margin-bottom:22px}
.price-num{font-family:"Inter",system-ui,sans-serif;font-variant-numeric:tabular-nums;font-size:2.75rem;font-weight:800;color:var(--ink);line-height:1;letter-spacing:-.02em}
.price-num small{font-size:14px;font-weight:600;color:var(--fog);margin-left:6px;letter-spacing:0}
.price-list{margin:26px 0 28px}
.price-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--muted);padding:11px 0;border-bottom:1px solid var(--line);line-height:1.6}
.price-list li i{color:var(--lime-deep);margin-top:5px;font-size:12px}
.price-card .btn{width:100%;justify-content:center}
.compare{margin-top:56px;border:1px solid var(--line);border-radius:var(--radius-card);background:#fff;overflow:hidden}
.compare table{width:100%;border-collapse:collapse;font-size:14.5px}
.compare th,.compare td{text-align:left;padding:16px 20px;border-bottom:1px solid var(--line);color:var(--muted)}
.compare thead th{font-size:13px;font-weight:700;color:var(--ink);letter-spacing:.06em}
.compare tbody tr:last-child td{border-bottom:0}
.compare td:first-child{color:var(--ink);font-weight:600}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:8fr 4fr;gap:24px;align-items:start}
.news-main .card-cover{aspect-ratio:16/9}
.news-main h3{font-size:1.4rem}
.news-side{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--sh-1);padding:8px 24px}
.news-item{padding:18px 0;border-bottom:1px dashed var(--line)}
.news-item:last-child{border-bottom:0}
.news-item h4{font-size:15px;font-weight:700;line-height:1.5;color:var(--ink);margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-item p{font-size:13.5px;color:var(--muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:8px}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--fog)}
.empty-state{background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);padding:44px 24px;text-align:center;color:var(--fog);font-size:14.5px}
.empty-state .btn-text{margin-top:12px;color:var(--ink)}

/* ---------- faq ---------- */
.faq-list{max-width:860px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);margin-bottom:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item[open]{border-color:rgba(200,242,76,.7);box-shadow:var(--sh-1)}
.faq-item summary{list-style:none;cursor:pointer;padding:20px 24px;display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:1.05rem;font-weight:600;color:var(--ink)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .plus{width:26px;height:26px;flex:0 0 auto;border-radius:999px;background:rgba(11,42,34,.06);color:var(--ink);display:inline-flex;align-items:center;justify-content:center;transition:transform .2s ease,background .2s ease}
.faq-item[open] summary .plus{transform:rotate(180deg);background:var(--lime)}
.faq-body{padding:0 24px 22px;color:var(--muted);font-size:15px;line-height:1.8;animation:faqIn .2s ease}
@keyframes faqIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}

/* ---------- cta band ---------- */
.cta-band{position:relative;background:var(--ink);color:#F6F5F0;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.22}
.cta-band .wrap{position:relative;z-index:2;padding-top:88px;padding-bottom:88px;display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:center}
.cta-band h2{color:#F6F5F0;font-size:clamp(1.5rem,2.6vw,2.25rem);line-height:1.25;margin-bottom:14px}
.cta-band p{color:rgba(246,245,240,.8);font-size:15.5px;line-height:1.85;max-width:32em}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-end}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(246,245,240,.8);padding:72px 0 0}
.footer-top{display:flex;align-items:center;gap:14px;margin-bottom:44px}
.footer-top .logo-mark{background:var(--lime)}
.footer-top .logo-mark svg path{stroke:var(--ink)}
.footer-top span{color:#F6F5F0;font-weight:900;font-size:17px}
.footer-rule{width:48px;height:2px;background:var(--lime);border-radius:2px;margin-bottom:44px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:56px}
.footer-col h4{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--lime);margin-bottom:20px}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(246,245,240,.72);max-width:26em}
.footer-col li{margin-bottom:12px}
.footer-col a{color:rgba(246,245,240,.8);font-size:14px}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{border-top:1px solid rgba(246,245,240,.12);padding:22px 0 30px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(246,245,240,.6)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px)}
.reveal.in{opacity:1;transform:none;transition:opacity .5s ease,transform .5s cubic-bezier(.2,.7,.3,1)}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  :root{--sec-gap:56px}
  .nav-links,.nav-cta{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .float-card{position:static;width:100%;margin-top:20px}
  .trust{grid-template-columns:1fr 1fr;margin-top:40px}
  .trust-cell:nth-child(2){border-right:0}
  .trust-cell:nth-child(1),.trust-cell:nth-child(2){border-bottom:1px solid var(--line)}
  .feat-grid{grid-template-columns:1fr;gap:32px}
  .feat-sticky{position:static}
  .case-grid,.news-grid{grid-template-columns:1fr}
  .price-grid{grid-template-columns:1fr;gap:20px}
  .price-card.featured{transform:none;padding-top:32px}
  .price-card.featured:hover{transform:translateY(-4px)}
  .cta-band .wrap{grid-template-columns:1fr;padding-top:64px;padding-bottom:64px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:640px){
  .wrap{padding:0 20px}
  .hero{padding-top:48px}
  .scene{grid-template-columns:1fr;gap:24px;padding:32px 0}
  .scene.flip .scene-text{order:1}
  .scene.flip .scene-media{order:2}
  .feat-cols{grid-template-columns:1fr}
  .feat-col-b{margin-top:0}
  .trust{grid-template-columns:1fr}
  .trust-cell{border-right:0;border-bottom:1px solid var(--line)}
  .trust-cell:last-child{border-bottom:0}
  .footer-grid{grid-template-columns:1fr}
  .compare{overflow-x:auto}
  .compare table{min-width:540px}
  .hero-actions .btn{width:100%;justify-content:center}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --ink:#0B2A22;
  --ink-soft:#134034;
  --lime:#C8F24C;
  --lime-dark:#9CCB21;
  --orange:#FF6A3D;
  --text:#111614;
  --text-2:#4A534E;
  --text-3:#8B948F;
  --line:#E5E3DA;
  --card:#FFFFFF;
  --bg:#F6F5F0;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,42,34,.05);
  --sh-2:0 12px 32px rgba(11,42,34,.10);
  --sh-3:0 24px 48px rgba(11,42,34,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
  --gutter:32px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--lime-dark)}
button,input,textarea,select{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.02em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:4px}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  border:1px solid transparent;transition:all .2s var(--ease);white-space:nowrap;
}
.btn-primary{background:var(--lime);color:var(--ink);border-color:var(--lime)}
.btn-primary:hover{background:#b8e63c;color:var(--ink);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#F6F5F0;transform:translateY(-2px)}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);transition:box-shadow .25s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(11,42,34,.08)}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;transition:height .25s var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--lime);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.logo-mark svg{width:20px;height:20px}
.brand-text{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{
  position:relative;padding:8px 4px;margin:0 10px;font-size:15px;font-weight:500;color:var(--text-2);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime);
  transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--ink);font-weight:700}
.nav-links a.active::after{transform:scaleX(1)}
.header-cta{margin-left:8px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;border:1px solid var(--line);
  background:#fff;border-radius:10px;color:var(--ink);font-size:18px;cursor:pointer;
}
body.nav-open{overflow:hidden}

/* ---------- 面包屑 ---------- */
.crumbs{padding:26px 0 0;font-size:13px;color:var(--text-3)}
.crumbs a{color:var(--text-3)}
.crumbs a:hover{color:var(--lime-dark)}
.crumbs .sep{margin:0 8px;color:var(--line)}
.crumbs .current{color:var(--text);display:inline-block;max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;vertical-align:bottom}

/* ---------- 文章头 ---------- */
.article-hero{padding:20px 0 34px;border-bottom:1px solid var(--line)}
.article-hero h1{
  font-size:clamp(1.75rem,3.4vw,2.6rem);font-weight:800;line-height:1.18;
  margin:14px 0 18px;max-width:20em;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;font-size:13px;color:var(--text-3)}
.meta-row .dot{color:var(--line)}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.14em;line-height:1.4;
}
.badge-cat{background:rgba(11,42,34,.08);color:var(--ink)}
.badge-state{background:rgba(255,106,61,.14);color:#C2441F}
.badge-lime{background:var(--lime);color:var(--ink)}

/* ---------- 布局 ---------- */
.article-layout{padding:48px 0 20px}
.article-columns{display:grid;grid-template-columns:minmax(0,8fr) minmax(280px,4fr);gap:var(--gutter)}
.panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:28px;
}
.article-body{max-width:740px;font-size:17px;line-height:1.9;color:var(--text)}
.article-body > * + *{margin-top:1.2em}
.article-body h2{
  position:relative;font-size:clamp(1.35rem,2.2vw,1.6rem);font-weight:800;line-height:1.3;
  margin-top:48px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:22px;background:var(--lime);border-radius:2px;
}
.article-body h3{font-size:1.15rem;font-weight:700;margin-top:32px}
.article-body p{color:var(--text-2)}
.article-body a{color:var(--ink);border-bottom:1px solid var(--lime);font-weight:600}
.article-body a:hover{color:var(--lime-dark)}
.article-body ul,.article-body ol{padding-left:4px}
.article-body li{position:relative;padding-left:20px;margin:.5em 0;color:var(--text-2)}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;background:var(--lime);border-radius:2px;
}
.article-body ol{counter-reset:olc;list-style:none}
.article-body ol li{counter-increment:olc}
.article-body ol li::before{
  content:counter(olc);position:absolute;left:0;top:0;color:var(--lime-dark);font-weight:800;font-size:14px;
}
.article-body blockquote{
  margin:1.5em 0;padding:18px 22px;background:var(--bg);border-left:3px solid var(--lime);
  border-radius:0 var(--r-img) var(--r-img) 0;color:var(--text-2);
}
.article-body img{border-radius:var(--r-img);margin:1.4em 0;width:100%}
.article-body figure figcaption{font-size:14px;color:var(--text-3);text-align:center;margin-top:-.6em}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;display:block;overflow-x:auto}
.article-body th,.article-body td{border:0;border-bottom:1px solid var(--line);padding:12px 14px;text-align:left}
.article-body th{color:var(--ink);font-weight:700;background:rgba(11,42,34,.03)}
.article-body code{background:rgba(11,42,34,.06);padding:2px 6px;border-radius:6px;font-size:14px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.empty-state{
  border:1px dashed var(--line);background:var(--bg);border-radius:var(--r-img);
  padding:40px 24px;text-align:center;color:var(--text-3);
}
.empty-state strong{display:block;color:var(--ink);font-size:18px;font-weight:700;margin-bottom:8px}
.empty-state a{display:inline-block;margin-top:14px;color:var(--ink);font-weight:600;border-bottom:1px solid var(--lime)}

/* ---------- 侧栏 ---------- */
.side{display:flex;flex-direction:column;gap:24px}
.side-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:24px}
.side-card-title{
  font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--text-2);
  text-transform:none;margin-bottom:16px;display:flex;align-items:center;gap:8px;
}
.side-card-title::before{content:"";width:4px;height:14px;background:var(--lime);border-radius:2px}
.toc-list li{border-bottom:1px dashed var(--line);padding:9px 0}
.toc-list li:last-child{border-bottom:0}
.toc-list a{font-size:14px;color:var(--text-2);display:block;padding-left:12px;border-left:3px solid transparent}
.toc-list a:hover{color:var(--ink);border-left-color:var(--lime)}
.toc-list li.toc-sub a{padding-left:26px;font-size:13.5px;color:var(--text-3)}
.toc-empty{font-size:14px;color:var(--text-3);display:none}
.mini-list li{padding:12px 0;border-bottom:1px dashed var(--line)}
.mini-list li:last-child{border-bottom:0;padding-bottom:0}
.mini-list a{font-size:15px;font-weight:600;color:var(--ink);line-height:1.5;display:block}
.mini-list a:hover{color:var(--lime-dark)}
.mini-meta{display:flex;align-items:center;gap:8px;margin-top:6px;font-size:12px;color:var(--text-3)}
.side-cta{background:var(--ink);border-color:var(--ink);color:#F6F5F0}
.side-cta h3{color:#F6F5F0;font-size:18px;font-weight:800;margin-bottom:10px}
.side-cta p{color:rgba(246,245,240,.78);font-size:14px;line-height:1.75;margin-bottom:18px}

/* ---------- 文末 ---------- */
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:40px}
.post-nav a{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--sh-1);transition:all .2s var(--ease);
}
.post-nav a:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(200,242,76,.7)}
.post-nav .label{font-size:12px;letter-spacing:.14em;color:var(--text-3);display:block;margin-bottom:8px}
.post-nav .title{font-size:16px;font-weight:700;color:var(--ink)}

.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.section-head h2{
  position:relative;padding-left:16px;font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:800;line-height:1.2;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.3em;width:4px;height:24px;background:var(--lime);border-radius:2px;
}
.section-head p{color:var(--text-2);font-size:15px;margin-top:10px}
.link-more{font-size:15px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--lime);padding-bottom:2px;white-space:nowrap}
.link-more:hover{color:var(--lime-dark)}

.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:all .2s var(--ease);display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(200,242,76,.65)}
.thumb{position:relative;aspect-ratio:4/3;background:#E5E3DA;overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s var(--ease)}
.card:hover .thumb img{transform:scale(1.04)}
.card-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;font-weight:700;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14.5px;color:var(--text-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;padding-top:12px;font-size:12.5px;color:var(--text-3);display:flex;gap:10px;align-items:center}

.cta-band{
  background:var(--ink);color:#F6F5F0;border-radius:24px;padding:64px 48px;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.22;
}
.cta-band::after{
  content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,42,34,.94) 0%,rgba(11,42,34,.72) 100%);
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{color:#F6F5F0;font-size:clamp(1.5rem,2.6vw,2.1rem);font-weight:800;line-height:1.25;margin-bottom:14px}
.cta-band p{color:rgba(246,245,240,.8);max-width:44em;font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-band .btn-ghost{color:#F6F5F0;border-color:rgba(246,245,240,.5)}
.cta-band .btn-ghost:hover{background:#F6F5F0;color:var(--ink);border-color:#F6F5F0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#F6F5F0;margin-top:24px;padding:64px 0 26px}
.footer-top{display:flex;align-items:center;gap:12px;font-size:18px;font-weight:800}
.footer-rule{width:48px;height:2px;background:var(--lime);margin:22px 0 36px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer-col h4{font-size:12px;letter-spacing:.14em;color:var(--lime);font-weight:700;margin-bottom:16px}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(246,245,240,.8)}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14.5px;color:rgba(246,245,240,.8)}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(246,245,240,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(246,245,240,.62);
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-links{
    position:fixed;inset:72px 0 0 0;background:var(--bg);flex-direction:column;
    align-items:flex-start;gap:32px;padding:40px 28px 120px;margin:0;
    transform:translateX(100%);transition:transform .25s var(--ease);overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-links a{font-size:22px;font-weight:700;margin:0;padding:6px 0}
  .header-cta{display:none}
  .article-columns{grid-template-columns:1fr}
  .side-sticky{position:static}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .section{padding:72px 0}
}
@media (max-width:640px){
  .wrap{padding:0 18px}
  .brand-text{font-size:15px}
  .article-hero h1{font-size:1.6rem}
  .article-body{font-size:16px}
  .panel{padding:20px}
  .grid-3{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .cta-band{padding:44px 24px;border-radius:18px}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:56px 0}
  .crumbs .current{max-width:40vw}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --ink:#0B2A22;
  --lime:#C8F24C;
  --lime-deep:#9CCB21;
  --orange:#FF6A3D;
  --paper:#F6F5F0;
  --line:#E5E3DA;
  --text:#111614;
  --muted:#4A534E;
  --fog:#8B948F;
  --white:#FFFFFF;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(11,42,34,.05);
  --sh-2:0 12px 32px rgba(11,42,34,.10);
  --sh-3:0 24px 48px rgba(11,42,34,.14);
  --wrap:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.85;color:var(--text);background:var(--paper);
  -webkit-font-smoothing:antialiased;font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease);}
button{font:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:var(--white);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.header-inner{
  max-width:var(--wrap);margin:0 auto;padding:0 24px;
  height:72px;display:flex;align-items:center;gap:28px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:var(--ink);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:22px;height:22px;display:block;}
.brand-mark svg path{stroke:var(--lime);}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink);white-space:nowrap;}
.brand-text.short{display:none;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  display:inline-flex;align-items:center;height:40px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--muted);border-radius:8px;position:relative;
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease);
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--ink);font-weight:700;}
.nav-links a.active::after{transform:scaleX(1);}
.header-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:44px;padding:0 20px;border-radius:999px;
  background:var(--lime);color:var(--ink);font-size:15px;font-weight:700;white-space:nowrap;
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.header-cta:hover{background:#BEE845;transform:translateY(-2px);box-shadow:var(--sh-2);}
.header-cta:focus-visible{outline:2px solid var(--ink);outline-offset:2px;}
.nav-toggle{
  display:none;margin-left:auto;width:46px;height:46px;border:1px solid var(--line);
  border-radius:10px;background:var(--white);cursor:pointer;padding:0;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle .bar{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease);}
.nav-toggle:focus-visible{outline:2px solid var(--lime-deep);outline-offset:2px;}
body.nav-open{overflow:hidden;}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:var(--paper);border-bottom:1px solid var(--line);}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--fog);padding:14px 0;flex-wrap:wrap;}
.crumb a{color:var(--fog);}
.crumb a:hover{color:var(--lime-deep);}
.crumb .sep{color:#C4C2B8;}
.crumb .current{color:var(--text);font-weight:600;}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--ink);}
.page-hero .hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  transform:scale(1.02);
}
.page-hero .hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,42,34,.86) 0%,rgba(11,42,34,.62) 58%,rgba(11,42,34,.5) 100%);
}
.hero-inner{position:relative;z-index:2;padding:64px 24px 60px;max-width:var(--wrap);margin:0 auto;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:999px;
  background:rgba(200,242,76,.16);border:1px solid rgba(200,242,76,.5);
  color:var(--lime);font-size:12px;letter-spacing:.14em;font-weight:600;
}
.page-hero h1{
  margin-top:20px;color:var(--paper);font-weight:800;letter-spacing:-.02em;line-height:1.14;
  font-size:clamp(2rem,4.4vw,3.35rem);max-width:20em;
}
.page-hero .hero-lead{
  margin-top:18px;max-width:640px;color:rgba(246,245,240,.84);font-size:17px;line-height:1.85;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:700;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);
}
.btn-primary{background:var(--lime);color:var(--ink);}
.btn-primary:hover{background:#BEE845;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent;}
.btn-ghost:hover{background:var(--ink);color:var(--paper);transform:translateY(-2px);}
.btn-ghost-light{border-color:rgba(246,245,240,.55);color:var(--paper);background:transparent;}
.btn-ghost-light:hover{background:var(--paper);color:var(--ink);border-color:var(--paper);}
.btn:focus-visible{outline:2px solid var(--lime-deep);outline-offset:2px;}
.link-underline{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink);
  padding-bottom:2px;background-image:linear-gradient(var(--lime),var(--lime));
  background-repeat:no-repeat;background-size:0% 2px;background-position:0 100%;
  transition:background-size .2s var(--ease),color .2s var(--ease);
}
.link-underline:hover{background-size:100% 2px;color:var(--lime-deep);}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section-alt{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:48px;}
.section-title{
  position:relative;padding-left:18px;font-size:clamp(1.5rem,2.6vw,2.25rem);
  font-weight:800;line-height:1.2;letter-spacing:-.02em;color:var(--ink);
}
.section-title::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:24px;
  background:var(--lime);border-radius:2px;
}
.section-sub{margin-top:14px;font-size:16px;color:var(--muted);max-width:62ch;}

/* ---------- split layout ---------- */
.split{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start;}
.split-side{position:sticky;top:104px;}
.split-side p{margin-top:16px;font-size:15px;color:var(--muted);}
.split-side .side-meta{margin-top:26px;display:flex;flex-direction:column;gap:14px;}
.side-meta-item{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:var(--muted);}
.side-meta-item i{color:var(--lime-deep);margin-top:5px;}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  display:flex;flex-direction:column;
}
.card.offset{margin-top:32px;}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(200,242,76,.64);}
.card-cover{aspect-ratio:4/3;background:#E5E3DA;overflow:hidden;border-radius:0;}
.card-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .2s var(--ease);}
.card:hover .card-cover img{transform:scale(1.04);}
.card-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-tag{
  align-self:flex-start;display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:999px;background:rgba(11,42,34,.07);color:var(--ink);
  font-size:12px;letter-spacing:.14em;font-weight:600;
}
.card-title{font-size:18px;font-weight:700;color:var(--ink);line-height:1.4;}
.card-desc{font-size:14.5px;color:var(--muted);line-height:1.75;}
.card-link{margin-top:auto;font-size:14px;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:6px;}
.card-link i{transition:transform .2s var(--ease);}
.card:hover .card-link i{transform:translateX(4px);}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;counter-reset:step;}
.step{
  position:relative;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px 26px;transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(200,242,76,.64);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:999px;
  background:var(--ink);color:var(--lime);font-size:15px;font-weight:800;letter-spacing:.04em;
}
.step h3{margin-top:18px;font-size:17px;font-weight:700;color:var(--ink);}
.step p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.75;}
.step::after{
  content:"";position:absolute;top:50px;right:-14px;width:28px;height:2px;
  background:repeating-linear-gradient(90deg,var(--line) 0 6px,transparent 6px 12px);
}
.step:last-child::after{display:none;}

/* ---------- point matrix ---------- */
.point-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.point{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.point:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(200,242,76,.64);}
.point-k{display:block;font-size:12px;letter-spacing:.14em;color:var(--fog);font-weight:700;}
.point-v{margin-top:12px;font-size:17px;font-weight:700;color:var(--ink);line-height:1.45;}
.point p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.75;}

/* ---------- data strip ---------- */
.data-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.data-item{padding:32px 8px;text-align:center;border-right:1px solid var(--line);}
.data-item:last-child{border-right:none;}
.data-num{font-size:clamp(2rem,3.4vw,2.75rem);font-weight:800;color:var(--ink);letter-spacing:-.02em;line-height:1;}
.data-num span{color:var(--lime-deep);}
.data-label{margin-top:12px;font-size:13px;color:var(--fog);}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:880px;}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item[open]{border-color:rgba(200,242,76,.7);box-shadow:var(--sh-2);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:22px 60px 22px 24px;position:relative;
  font-size:1.05rem;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";position:absolute;right:24px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:999px;background:var(--lime);color:var(--ink);
  display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;line-height:1;
  transition:transform .2s var(--ease);
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(45deg);}
.faq-body{padding:0 24px 24px;font-size:15px;color:var(--muted);line-height:1.8;border-top:1px solid var(--line);padding-top:18px;margin-top:-2px;}

/* ---------- cta band ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--ink);}
.cta-band .cta-bg{position:absolute;inset:0;background-size:cover;background-position:center;}
.cta-band .cta-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,42,34,.94),rgba(11,42,34,.72));}
.cta-inner{
  position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;
  gap:32px;padding:72px 24px;flex-wrap:wrap;
}
.cta-inner h2{color:var(--paper);font-size:clamp(1.5rem,2.4vw,2.1rem);font-weight:800;letter-spacing:-.02em;}
.cta-inner p{margin-top:12px;color:rgba(246,245,240,.78);font-size:15.5px;max-width:56ch;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(246,245,240,.8);padding:72px 0 32px;}
.footer-top{display:flex;align-items:center;gap:12px;color:var(--paper);font-weight:800;font-size:17px;}
.footer-top .logo-mark{
  width:38px;height:38px;border-radius:11px;background:rgba(246,245,240,.1);
  display:flex;align-items:center;justify-content:center;
}
.footer-top .logo-mark svg{width:22px;height:22px;}
.footer-top .logo-mark svg path{stroke:var(--lime);}
.footer-rule{width:48px;height:2px;background:var(--lime);margin:26px 0 40px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;}
.footer-col h4{font-size:12px;letter-spacing:.14em;color:var(--lime);font-weight:700;margin-bottom:16px;}
.footer-col p{font-size:14px;line-height:1.8;color:rgba(246,245,240,.8);}
.footer-col ul{display:grid;gap:10px;}
.footer-col ul a{font-size:14px;color:rgba(246,245,240,.8);}
.footer-col ul a:hover{color:var(--lime);}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(246,245,240,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(246,245,240,.62);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-toggle{display:flex;}
  .header-cta{display:none;}
  .nav-links{
    position:fixed;left:0;right:0;top:72px;bottom:0;
    background:var(--paper);flex-direction:column;align-items:flex-start;gap:8px;
    padding:32px 24px 48px;margin:0;overflow-y:auto;
    transform:translateY(-8px);opacity:0;pointer-events:none;
    transition:opacity .2s var(--ease),transform .2s var(--ease);
    border-top:1px solid var(--line);
  }
  .nav-links.is-open{opacity:1;transform:none;pointer-events:auto;}
  .nav-links a{height:52px;padding:0;font-size:20px;font-weight:600;color:var(--ink);width:100%;}
  .nav-links a::after{bottom:10px;left:0;right:auto;width:32px;}
  .split{grid-template-columns:1fr;gap:36px;}
  .split-side{position:static;}
  .point-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step::after{display:none;}
  .data-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .data-item:nth-child(2){border-right:none;}
  .data-item:nth-child(1),.data-item:nth-child(2){border-bottom:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:64px 0;}
}
@media (max-width:640px){
  .header-inner{height:64px;padding:0 18px;gap:12px;}
  .brand-text.full{display:none;}
  .brand-text.short{display:inline;}
  .nav-links{top:64px;padding:24px 18px 40px;}
  .wrap{padding:0 18px;}
  .hero-inner{padding:48px 18px 44px;}
  .page-hero h1{font-size:1.85rem;}
  .section{padding:56px 0;}
  .card-grid{grid-template-columns:1fr;gap:20px;}
  .card.offset{margin-top:0;}
  .point-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .data-strip{grid-template-columns:1fr;}
  .data-item{border-right:none;border-bottom:1px solid var(--line);}
  .data-item:last-child{border-bottom:none;}
  .cta-inner{padding:56px 18px;}
  .cta-inner .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .faq-item summary{font-size:1rem;padding:20px 56px 20px 18px;}
  .faq-body{padding:16px 18px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --brand:#0B2A22;
  --brand-2:#124236;
  --lime:#C8F24C;
  --lime-deep:#9CCB21;
  --orange:#FF6A3D;
  --ink:#111614;
  --ink-2:#4A534E;
  --muted:#8B948F;
  --line:#E5E3DA;
  --card:#FFFFFF;
  --bg:#F6F5F0;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,42,34,.05);
  --sh-2:0 12px 32px rgba(11,42,34,.10);
  --sh-3:0 24px 48px rgba(11,42,34,.14);
  --wrap:1200px;
  --sec:96px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%}

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  font-weight:400;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;background-color:transparent}
button{font:inherit;color:inherit;cursor:pointer}
h1,h2,h3,h4,h5,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--brand);color:#F6F5F0;padding:10px 18px;border-radius:0 0 var(--r-btn) 0;
}
.skip-link:focus{left:0}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;
  padding:0 26px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:16px;font-weight:700;letter-spacing:.01em;
  transition:background-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--lime);color:var(--brand);box-shadow:var(--sh-1)}
.btn-primary:hover{background:#BCE63F;transform:translateY(-2px);box-shadow:var(--sh-2);color:var(--brand)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand);color:#F6F5F0}
.btn-line{background:transparent;color:#F6F5F0;border-color:rgba(246,245,240,.42)}
.btn-line:hover{background:rgba(246,245,240,.12);border-color:var(--lime);color:#F6F5F0}
.btn-sm{min-height:42px;padding:0 18px;font-size:15px}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:700;color:var(--brand);
  padding-bottom:2px;position:relative;
}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--lime);transform:scaleX(.28);transform-origin:left;
  transition:transform .2s var(--ease);
}
.link-arrow:hover{color:var(--lime-deep)}
.link-arrow:hover::after{transform:scaleX(1)}

/* ---------- 标签 / 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;
  padding:3px 12px;
  border-radius:var(--r-pill);
  font-size:12px;font-weight:700;letter-spacing:.14em;
  line-height:1.7;
}
.badge-green{background:rgba(11,42,34,.08);color:var(--brand)}
.badge-orange{background:rgba(255,106,61,.14);color:#C1440F}
.badge-lime{background:var(--lime);color:var(--brand)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:72px;
  transition:height .2s var(--ease);
}
.site-header.is-scrolled .header-inner{height:60px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:11px;background:var(--brand);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:21px;height:21px;display:block}
.brand-text{
  font-size:17px;font-weight:900;letter-spacing:-.01em;color:var(--brand);
  line-height:1.2;white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center}
.nav-links a{
  position:relative;
  padding:10px 14px;
  font-size:15px;font-weight:500;color:var(--ink-2);
  border-radius:8px;
  transition:color .2s var(--ease),background-color .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;
  transition:transform .2s var(--ease);
}
.nav-links a:hover{color:var(--brand);background:rgba(11,42,34,.04)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.active{color:var(--brand);font-weight:700}
.nav-links a.active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;
  width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:#fff;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand);border-radius:2px;transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.mobile-drawer{
  position:fixed;left:0;right:0;top:0;bottom:0;
  background:var(--bg);
  padding:88px 24px 32px;
  display:flex;flex-direction:column;gap:6px;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .2s var(--ease),transform .2s var(--ease),visibility .2s;
  z-index:70;overflow-y:auto;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.mobile-drawer a.drawer-link{
  font-size:22px;font-weight:700;color:var(--brand);
  padding:14px 0;border-bottom:1px solid var(--line);
}
.mobile-drawer a.drawer-link.active{color:var(--lime-deep)}
.mobile-drawer .btn{margin-top:24px;width:100%}
body.nav-locked{overflow:hidden}

/* ---------- 面包屑 ---------- */
.crumb{
  font-size:13px;color:rgba(246,245,240,.78);
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
}
.crumb a{color:rgba(246,245,240,.78);transition:color .2s var(--ease)}
.crumb a:hover{color:var(--lime)}
.crumb .sep{opacity:.6}
.crumb .current{color:#FFFFFF;font-weight:700}

/* ---------- 页面头图 ---------- */
.page-hero{
  position:relative;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;
  background-position:center 40%;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(150deg,rgba(11,42,34,.86) 0%,rgba(11,42,34,.62) 58%,rgba(11,42,34,.78) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding:52px 0 64px;max-width:840px}
.page-hero h1{
  margin-top:22px;
  color:#FFFFFF;
  font-size:clamp(1.85rem,4vw,3.1rem);
  font-weight:900;
  letter-spacing:-.02em;
  line-height:1.14;
}
.page-hero .lede{
  margin-top:18px;
  color:rgba(246,245,240,.88);
  font-size:17px;line-height:1.85;
  max-width:38em;
}
.page-hero .hero-meta{
  margin-top:26px;display:flex;flex-wrap:wrap;gap:10px;
}
.page-hero .hero-meta span{
  display:inline-flex;align-items:center;padding:5px 14px;
  border:1px solid rgba(246,245,240,.28);border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.12em;color:rgba(246,245,240,.9);
}

/* ---------- 通用板块 ---------- */
.section{padding:var(--sec) 0}
.section-tight{padding:0 0 var(--sec)}
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head h2{
  font-size:clamp(1.5rem,2.6vw,2.25rem);
  font-weight:800;line-height:1.2;letter-spacing:-.01em;color:var(--brand);
  padding-left:16px;position:relative;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:24px;
  background:var(--lime);border-radius:2px;
}
.sec-head p{margin-top:14px;color:var(--ink-2);font-size:16px;line-height:1.85;max-width:36em}
.sec-head-split{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;max-width:none}

/* ---------- 筛选胶囊条 ---------- */
.filter-bar{
  background:#FFFFFF;border-bottom:1px solid var(--line);
  padding:16px 0;
}
.filter-scroll{
  display:flex;gap:10px;overflow-x:auto;padding-bottom:2px;
  scrollbar-width:thin;
}
.filter-scroll::-webkit-scrollbar{height:4px}
.filter-scroll::-webkit-scrollbar-thumb{background:var(--line);border-radius:4px}
.chip{
  flex:0 0 auto;
  display:inline-flex;align-items:center;height:38px;padding:0 18px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:var(--bg);
  font-size:14px;font-weight:600;color:var(--ink-2);
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.active{background:var(--lime);border-color:var(--lime);color:var(--brand);font-weight:700}

/* ---------- 卡片网格 ---------- */
.card-grid{margin-left:-12px;margin-right:-12px}
.card-grid > .cell{padding:0 12px 24px}

.scene-card{
  height:100%;
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(200,242,76,.8)}
.scene-card:hover .ratio img{transform:scale(1.04)}
.ratio{
  position:relative;padding-top:75%;background:#E5E3DA;overflow:hidden;
}
.ratio img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:transform .25s var(--ease);
}
.scene-card .card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.card-tags{display:flex;flex-wrap:wrap;gap:8px}
.scene-card h3{font-size:1.25rem;font-weight:700;line-height:1.4;color:var(--brand)}
.scene-card p{font-size:15px;line-height:1.8;color:var(--ink-2)}
.scene-card .card-foot{margin-top:auto;padding-top:6px}

/* ---------- 场景对照表 ---------- */
.compare{
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.compare-head{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  background:var(--brand);
}
.compare-head div{
  padding:18px 26px;color:#F6F5F0;font-size:13px;font-weight:700;letter-spacing:.14em;
}
.compare-body{display:grid;grid-template-columns:1fr 1fr}
.compare-col{padding:8px 26px 22px}
.compare-col + .compare-col{border-left:1px solid var(--line)}
.cmp-row{padding:18px 0;border-bottom:1px dashed var(--line);display:flex;gap:14px}
.cmp-row:last-child{border-bottom:0}
.cmp-dot{
  flex:0 0 auto;width:4px;height:22px;margin-top:6px;border-radius:2px;background:var(--lime);
}
.cmp-row h4{font-size:16px;font-weight:700;color:var(--brand);margin-bottom:4px}
.cmp-row p{font-size:14.5px;color:var(--ink-2);line-height:1.75}

/* ---------- 准备清单 ---------- */
.checklist{
  display:grid;grid-template-columns:1fr 1fr;gap:0 48px;
}
.check-item{
  display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line);
}
.check-item .tick{
  flex:0 0 auto;width:24px;height:24px;border-radius:8px;background:rgba(200,242,76,.45);
  display:flex;align-items:center;justify-content:center;margin-top:4px;
}
.check-item .tick svg{width:14px;height:14px}
.check-item strong{display:block;font-size:16px;color:var(--brand);font-weight:700;margin-bottom:2px}
.check-item span{font-size:14.5px;color:var(--ink-2);line-height:1.75}

/* ---------- 案例引用 ---------- */
.quote-card{
  height:100%;
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;gap:20px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.quote-mark{
  font-size:3.4rem;line-height:1;color:var(--lime);font-weight:900;font-family:Georgia,serif;
  height:34px;
}
.quote-card blockquote{
  font-size:16.5px;line-height:1.85;color:var(--ink);
  margin:0;
}
.quote-meta{
  margin-top:auto;display:flex;align-items:center;gap:14px;
  padding-top:18px;border-top:1px solid var(--line);
}
.avatar{
  width:56px;height:56px;border-radius:var(--r-pill);overflow:hidden;background:#E5E3DA;flex:0 0 auto;
}
.avatar img{width:100%;height:100%;object-fit:cover}
.quote-meta .who strong{display:block;font-size:15px;color:var(--brand);font-weight:700}
.quote-meta .who span{font-size:13px;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-list{
  background:#FFFFFF;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;
  font-size:1.05rem;font-weight:600;color:var(--brand);
  transition:background-color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:rgba(11,42,34,.03)}
.faq-icon{
  position:relative;width:18px;height:18px;flex:0 0 auto;
  transition:transform .2s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;transition:opacity .2s var(--ease)}
.faq-item[open] .faq-icon{transform:rotate(180deg)}
.faq-item[open] .faq-icon::after{opacity:0}
.faq-body{
  padding:0 26px 24px;
  font-size:15px;line-height:1.8;color:var(--ink-2);
  animation:faqIn .2s var(--ease);
  max-width:44em;
}
@keyframes faqIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;
  background-image:url(/assets/images/backpic/back-3.png);
  background-size:cover;background-position:center;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(110deg,rgba(11,42,34,.95),rgba(11,42,34,.78));
}
.cta-inner{
  position:relative;z-index:2;
  padding:88px 0;
  display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:center;
}
.cta-inner h2{
  color:#FFFFFF;font-size:clamp(1.5rem,2.8vw,2.25rem);
  font-weight:800;line-height:1.25;letter-spacing:-.01em;
}
.cta-inner p{margin-top:14px;color:rgba(246,245,240,.82);font-size:16px;max-width:32em}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.cta-actions .note{font-size:13.5px;color:rgba(246,245,240,.7);line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand);
  color:rgba(246,245,240,.8);
  padding:72px 0 28px;
}
.footer-top{
  display:flex;align-items:center;gap:12px;
  color:#F6F5F0;font-size:18px;font-weight:900;letter-spacing:-.01em;
}
.footer-top .logo-mark{
  width:36px;height:36px;border-radius:11px;background:var(--lime);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.footer-top .logo-mark svg{width:21px;height:21px;display:block}
.footer-rule{
  width:48px;height:2px;background:var(--lime);border-radius:2px;margin:26px 0 40px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px 32px;
}
.footer-col h4{
  font-size:12px;letter-spacing:.14em;color:var(--lime);
  font-weight:700;margin-bottom:16px;
}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(246,245,240,.8);max-width:32em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col ul a{
  font-size:14px;color:rgba(246,245,240,.8);
  transition:color .2s var(--ease);
}
.footer-col ul a:hover{color:var(--lime)}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(246,245,240,.16);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(246,245,240,.66);
}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-in{opacity:1;transform:translateY(0)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--sec:72px}
  .nav-links,.header-actions{display:none}
  .nav-toggle{display:flex}
  .cta-inner{grid-template-columns:1fr;gap:28px;padding:64px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px 28px}
}
@media (max-width:768px){
  body{font-size:16px}
  .compare-body{grid-template-columns:1fr}
  .compare-col + .compare-col{border-left:0;border-top:1px solid var(--line)}
  .compare-head{grid-template-columns:1fr}
  .checklist{grid-template-columns:1fr;gap:0}
  .page-hero-inner{padding:38px 0 48px}
  .faq-item summary{padding:20px;font-size:1rem}
  .faq-body{padding:0 20px 22px}
}
@media (max-width:640px){
  :root{--sec:56px}
  .wrap{padding:0 20px}
  .brand-text{font-size:15px;white-space:normal;line-height:1.25;max-width:150px}
  .card-grid{margin-left:-10px;margin-right:-10px}
  .card-grid > .cell{padding:0 10px 20px}
  .sec-head{margin-bottom:32px}
  .compare-col{padding:6px 20px 18px}
  .compare-head div{padding:14px 20px}
  .quote-card{padding:24px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
  .btn{width:100%}
  .header-actions .btn{width:auto}
  .link-arrow{width:auto}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --green:#0B2A22;
  --green-soft:#123A2F;
  --lime:#C8F24C;
  --lime-deep:#9CCB21;
  --orange:#FF6A3D;
  --ink:#111614;
  --graphite:#4A534E;
  --mist:#8B948F;
  --line:#E5E3DA;
  --paper:#F6F5F0;
  --white:#FFFFFF;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(11,42,34,.05);
  --sh-2:0 12px 32px rgba(11,42,34,.10);
  --sh-3:0 24px 48px rgba(11,42,34,.14);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body.nav-open{overflow:hidden}
img{max-width:100%;display:block}
a{color:var(--green);text-decoration:none;transition:color .2s var(--ease)}
a:hover{color:var(--lime-deep)}
h1,h2,h3,h4{margin:0;font-weight:800;color:var(--green);letter-spacing:-0.01em}
h1{font-size:clamp(2rem,4.6vw,3.2rem);line-height:1.12;letter-spacing:-0.02em}
h2{font-size:clamp(1.5rem,2.6vw,2.25rem);line-height:1.2}
h3{font-size:1.25rem;font-weight:700;line-height:1.35}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}
.muted{color:var(--mist)}
.small{font-size:14px;line-height:1.7;color:var(--graphite)}
.eyebrow{font-size:12px;letter-spacing:.14em;color:var(--graphite);font-weight:700;text-transform:uppercase}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:700;line-height:1;cursor:pointer;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-lime{background:var(--lime);color:var(--green);box-shadow:var(--sh-1)}
.btn-lime:hover{background:#BCE63C;color:var(--green);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-ghost{background:transparent;color:var(--green);border-color:var(--green)}
.btn-ghost:hover{background:var(--green);color:var(--paper);transform:translateY(-2px)}
.btn-light{background:transparent;color:var(--paper);border-color:rgba(246,245,240,.5)}
.btn-light:hover{background:var(--paper);color:var(--green);border-color:var(--paper)}
.btn-sm{padding:10px 18px;font-size:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:700;color:var(--green);
  border-bottom:1px solid var(--lime);padding-bottom:2px;
  background-image:linear-gradient(var(--lime),var(--lime));background-size:0 2px;background-repeat:no-repeat;background-position:0 100%;
  transition:background-size .2s var(--ease),color .2s var(--ease);
}
.link-arrow:hover{background-size:100% 2px;color:var(--green)}
.btn:disabled,.is-disabled{opacity:.4;pointer-events:none}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--white);
  border-bottom:1px solid var(--line);
  transition:height .2s var(--ease),box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(11,42,34,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;transition:height .2s var(--ease)}
.site-header.is-scrolled .header-inner{height:60px}
.logo{display:flex;align-items:center;gap:10px;color:var(--green);font-weight:800;font-size:17px;white-space:nowrap}
.logo:hover{color:var(--green)}
.logo-mark{width:36px;height:36px;border-radius:10px;background:var(--lime);display:grid;place-items:center;flex:0 0 36px}
.logo-mark svg{width:22px;height:22px}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
  position:relative;padding:10px 14px;font-size:15px;font-weight:600;color:var(--graphite);border-radius:8px;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a:hover{color:var(--green);background:#F1F4EE}
.nav-links a.active{color:var(--green);font-weight:800}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;background:var(--lime);border-radius:2px}
.header-right{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:var(--white);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--green);position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--green);border-radius:2px;transition:transform .2s var(--ease)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}
.nav-drawer-cta{display:none}

/* ============ 页面头图 ============ */
.page-hero{
  position:relative;
  background:linear-gradient(rgba(11,42,34,.66),rgba(11,42,34,.66)),url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  color:var(--paper);
  padding:28px 0 72px;
}
.crumbs{font-size:13px;color:rgba(246,245,240,.7);margin-bottom:36px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumbs a{color:rgba(246,245,240,.7)}
.crumbs a:hover{color:var(--lime)}
.crumbs .sep{color:rgba(246,245,240,.4)}
.crumbs .current{color:var(--paper)}
.page-hero h1{color:var(--paper);max-width:20em}
.page-hero .lede{
  margin-top:20px;max-width:62ch;font-size:16px;line-height:1.85;color:rgba(246,245,240,.86);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px}
.chip{
  display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;color:rgba(246,245,240,.9);
  border:1px solid rgba(246,245,240,.35);background:rgba(246,245,240,.06);
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.chip:hover{background:var(--lime);color:var(--green);border-color:var(--lime)}

/* ============ 区块 ============ */
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-alt{background:var(--white)}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:44px}
.sec-head h2{position:relative;padding-left:18px}
.sec-head h2::before{content:"";position:absolute;left:0;top:.22em;width:4px;height:24px;background:var(--lime);border-radius:2px}
.sec-head p{max-width:56ch;margin-top:12px;color:var(--graphite);font-size:15px;padding-left:18px}

/* ============ 网格工具 ============ */
.grid-flush{margin-left:-15px;margin-right:-15px}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:26px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  height:100%;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(200,242,76,.6)}

/* ============ FAQ 布局 ============ */
.faq-layout{display:flex;align-items:flex-start;gap:0}
.toc-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);position:sticky;top:96px;
}
.toc-card h3{font-size:14px;letter-spacing:.1em;color:var(--mist);font-weight:700;margin-bottom:14px}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;padding:10px 12px;border-radius:8px;font-size:15px;font-weight:600;color:var(--graphite);
  border-left:3px solid transparent;transition:all .2s var(--ease);
}
.toc-list a:hover{background:#F1F4EE;color:var(--green)}
.toc-list a.is-current{color:var(--green);border-left-color:var(--lime);background:#F4F8EA;font-weight:800}
.toc-note{margin-top:18px;padding-top:18px;border-top:1px dashed var(--line);font-size:14px;line-height:1.7;color:var(--graphite)}
.toc-note a{font-weight:700}

.faq-group{margin-bottom:36px}
.faq-group:last-child{margin-bottom:0}
.faq-group-title{
  font-size:13px;letter-spacing:.14em;color:var(--graphite);font-weight:800;
  text-transform:uppercase;margin-bottom:16px;display:flex;align-items:center;gap:10px;
}
.faq-group-title::after{content:"";flex:1;height:1px;background:var(--line)}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item:hover{border-color:rgba(200,242,76,.7);box-shadow:var(--sh-2)}
.faq-item[open]{border-color:rgba(200,242,76,.85)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;cursor:pointer;list-style:none;font-size:1.05rem;font-weight:600;color:var(--green);
  line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{position:relative;width:22px;height:22px;flex:0 0 22px;transition:transform .2s var(--ease)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--green);border-radius:2px;
  transition:transform .2s var(--ease),background .2s var(--ease),opacity .2s var(--ease);
}
.faq-icon::before{left:0;top:10px;width:22px;height:2px}
.faq-icon::after{left:10px;top:0;width:2px;height:22px}
.faq-item[open] .faq-icon{transform:rotate(180deg)}
.faq-item[open] .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-item[open] .faq-icon::before{background:var(--lime-deep)}
.faq-answer{padding:0 24px 24px;font-size:15px;line-height:1.85;color:var(--graphite);max-width:66ch}
.faq-answer p{margin:0 0 12px}
.faq-answer p:last-child{margin-bottom:0}
.faq-answer strong{color:var(--green)}
@keyframes fadeDown{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:none}}
.faq-item[open] .faq-answer{animation:fadeDown .2s var(--ease)}

/* ============ 自检清单 ============ */
.check-list{list-style:none;margin:0;padding:0;counter-reset:chk}
.check-list li{
  position:relative;padding:18px 20px 18px 66px;background:var(--white);
  border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:12px;
  font-size:15px;line-height:1.75;color:var(--graphite);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.check-list li:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(200,242,76,.6)}
.check-list li::before{
  counter-increment:chk;content:counter(chk,decimal-leading-zero);
  position:absolute;left:22px;top:16px;
  font-family:Inter,system-ui,sans-serif;font-variant-numeric:tabular-nums;
  font-size:22px;font-weight:800;color:var(--green);
  border-bottom:3px solid var(--lime);line-height:1.1;padding-bottom:2px;
}
.check-list li b{color:var(--green)}

/* ============ 表格 ============ */
.table-wrap{
  overflow-x:auto;background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
}
table.compare{width:100%;border-collapse:collapse;min-width:660px}
table.compare th,table.compare td{padding:16px 22px;text-align:left;border-bottom:1px solid var(--line);font-size:15px;vertical-align:top}
table.compare th{font-size:12px;letter-spacing:.14em;color:var(--graphite);font-weight:800;background:#FBFBF8}
table.compare td:first-child{color:var(--green);font-weight:700}
table.compare tr:last-child td{border-bottom:0}
table.compare tbody tr{transition:background .2s var(--ease)}
table.compare tbody tr:hover{background:#FBFCF6}

/* ============ 联系卡 ============ */
.contact-card{display:flex;flex-direction:column;gap:12px}
.contact-card .badge{align-self:flex-start}
.contact-card h3{font-size:1.12rem}
.contact-card p{font-size:15px;color:var(--graphite);line-height:1.75;margin:0}
.badge{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--r-pill);
  font-size:12px;font-weight:700;letter-spacing:.14em;
}
.badge-green{background:#E7F0EA;color:var(--green)}
.badge-lime{background:var(--lime);color:var(--green)}
.badge-orange{background:rgba(255,106,61,.14);color:#C6431C}

/* ============ 表单 ============ */
.form-shell{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--sh-1);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 24px}
.field{display:flex;flex-direction:column}
.field-full{grid-column:1 / -1}
.field label{font-size:13px;font-weight:600;color:var(--graphite);margin-bottom:8px}
.field label .req{color:var(--orange)}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 16px;font-size:15px;font-family:inherit;color:var(--ink);
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-btn);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.field textarea{height:auto;min-height:132px;padding:14px 16px;line-height:1.7;resize:vertical}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--graphite) 50%),linear-gradient(135deg,var(--graphite) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--lime-deep);box-shadow:0 0 0 3px rgba(200,242,76,.4);
}
.field.is-error input,.field.is-error select,.field.is-error textarea{
  border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,106,61,.18);
}
.hint{font-size:13px;color:var(--mist);margin-top:8px;line-height:1.6}
.err-msg{font-size:13px;color:var(--orange);margin-top:8px;font-weight:600}
.form-actions{display:flex;justify-content:flex-end;align-items:center;gap:16px;margin-top:26px}
.form-actions .note{font-size:13px;color:var(--mist);margin-right:auto}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;color:var(--paper);
  background:linear-gradient(rgba(11,42,34,.86),rgba(11,42,34,.86)),url("/assets/images/backpic/back-3.png") center/cover no-repeat;
  padding:80px 0;
}
.cta-band h2{color:var(--paper);max-width:22em}
.cta-band p{color:rgba(246,245,240,.82);margin-top:16px;max-width:56ch;font-size:16px}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}

/* ============ 页脚 ============ */
.site-footer{background:var(--green);color:rgba(246,245,240,.8);padding:64px 0 28px}
.footer-top{display:flex;align-items:center;gap:12px;font-weight:800;color:var(--paper);font-size:17px}
.footer-rule{width:48px;height:2px;background:var(--lime);border-radius:2px;margin:20px 0 36px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-col h4{font-size:12px;letter-spacing:.14em;color:var(--lime);font-weight:800;margin-bottom:16px}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(246,245,240,.75);margin:0}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col ul a{font-size:14px;color:rgba(246,245,240,.8)}
.footer-col ul a:hover{color:var(--lime)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(246,245,240,.16);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(246,245,240,.6);
}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .section{padding:64px 0}
  .nav-toggle{display:flex}
  .nav-links{
    position:fixed;left:0;right:0;top:72px;bottom:0;
    flex-direction:column;align-items:stretch;gap:6px;
    background:var(--paper);padding:32px 24px 40px;
    border-top:1px solid var(--line);
    transform:translateY(-8px);opacity:0;pointer-events:none;
    transition:opacity .2s var(--ease),transform .2s var(--ease);
    overflow-y:auto;
  }
  body.nav-open .nav-links{opacity:1;transform:none;pointer-events:auto}
  .nav-links a{font-size:19px;font-weight:700;padding:16px 12px;color:var(--green);border-bottom:1px dashed var(--line);border-radius:0}
  .nav-links a.active::after{left:12px;right:auto;width:28px;bottom:8px}
  .nav-drawer-cta{display:flex;margin-top:28px}
  .nav-drawer-cta .btn{width:100%}
  .header-right .btn{display:none}
  .toc-card{position:static;margin-bottom:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:640px){
  body{font-size:16px}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .wrap{padding:0 20px}
  .page-hero{padding:20px 0 56px}
  .crumbs{margin-bottom:24px}
  .hero-actions .btn{width:100%}
  .sec-head{margin-bottom:32px}
  .form-grid{grid-template-columns:1fr}
  .form-shell{padding:24px}
  .form-actions{flex-direction:column;align-items:stretch}
  .form-actions .note{margin-right:0}
  .form-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:64px 0}
  .faq-item summary{padding:18px 18px;font-size:1rem}
  .faq-answer{padding:0 18px 20px}
  .check-list li{padding:16px 18px 16px 60px}
}