/* roulang page: index */
:root{
  --c-primary:#F0541E;
  --c-primary-strong:#C93F0F;
  --c-primary-soft:#FFF0E8;
  --c-accent:#0FA98B;
  --c-accent-soft:#E6F7F3;
  --c-lime:#C6F24E;
  --c-ink:#0F1216;
  --c-ink-2:#1A1F26;
  --c-text:#232930;
  --c-muted:#6B7280;
  --c-bg:#F6F4F0;
  --c-surface:#FFFFFF;
  --c-line:#E3E1DC;
  --c-line-dark:rgba(255,255,255,.12);
  --radius-sm:8px;
  --radius:12px;
  --radius-lg:18px;
  --shadow-s:0 1px 2px rgba(16,20,24,.06);
  --shadow-m:0 10px 30px -12px rgba(16,20,24,.18);
  --shadow-h:0 16px 40px -16px rgba(240,84,30,.28);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.8;color:var(--c-text);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;color:var(--c-ink)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
summary{cursor:pointer}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:88px 0}
.section--tight{padding:64px 0}
.section--dark{background:var(--c-ink);color:#fff}
.section--paper{background:var(--c-surface)}
.section-head{max-width:740px;margin-bottom:44px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12.5px;font-weight:700;letter-spacing:.14em;color:var(--c-primary);margin-bottom:16px}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-primary);border-radius:2px}
.section-head h2{font-size:clamp(24px,3vw,36px);line-height:1.25}
.section-head p{margin-top:14px;color:var(--c-muted);font-size:16px;max-width:660px}
.muted{color:var(--c-muted)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:10px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;white-space:nowrap}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px -12px rgba(240,84,30,.85)}
.btn-primary:hover{background:var(--c-primary-strong);transform:translateY(-1px);box-shadow:var(--shadow-h)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;border-color:var(--c-line);color:var(--c-ink)}
.btn-outline:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.62)}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}

/* 导航 */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--c-line);transition:box-shadow .25s ease}
.site-header.is-scrolled{box-shadow:var(--shadow-m)}
.nav-inner{display:flex;align-items:center;gap:20px;height:70px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--c-ink);font-size:17px;white-space:nowrap;flex-shrink:0}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-strong));transform:skewX(-8deg);box-shadow:0 6px 14px -8px rgba(240,84,30,.9)}
.brand-mark i{display:block;transform:skewX(8deg);color:#fff;font-size:15px;font-weight:800;font-style:normal}
.main-nav{display:flex;align-items:center;gap:30px;margin-left:auto}
.nav-link{position:relative;font-size:15px;font-weight:500;color:#3c444d;padding:10px 0;transition:color .2s ease;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;border-radius:2px;background:var(--c-primary);transform:translateX(-50%);transition:width .25s ease}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--c-primary);font-weight:700}
.nav-link.active::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:26px}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.drawer-mask{position:fixed;inset:0;background:rgba(15,18,22,.5);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:60}
.drawer-mask.open{opacity:1;visibility:visible}
.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;background:#fff;z-index:70;padding:22px 20px;display:flex;flex-direction:column;gap:6px;transform:translateX(105%);transition:transform .28s ease;box-shadow:-20px 0 40px -24px rgba(0,0,0,.3);overflow-y:auto}
.mobile-drawer.open{transform:translateX(0)}
.drawer-title{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--c-muted);margin:6px 0 8px}
.drawer-link{display:flex;align-items:center;min-height:48px;padding:0 12px;border-radius:10px;font-size:15px;color:#3c444d;border-bottom:1px solid var(--c-line)}
.drawer-link:last-of-type{border-bottom:0}
.drawer-link.active{background:var(--c-primary-soft);color:var(--c-primary);font-weight:700}

/* Hero */
.hero{position:relative;overflow:hidden;background:var(--c-ink);color:#fff;padding:78px 0 128px}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.32}
.hero-shade{position:absolute;inset:0;background:linear-gradient(100deg,rgba(15,18,22,.96) 0%,rgba(15,18,22,.86) 42%,rgba(15,18,22,.58) 100%)}
.hero-slant{position:absolute;left:-3%;right:-3%;bottom:-52px;height:92px;background:var(--c-bg);transform:rotate(-2deg);z-index:3}
.hero-inner{position:relative;z-index:4;display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,1fr);gap:52px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(198,242,78,.14);border:1px solid rgba(198,242,78,.42);color:var(--c-lime);font-size:13px;font-weight:700;letter-spacing:.06em}
.hero h1{color:#fff;font-size:clamp(29px,4.2vw,50px);line-height:1.16;margin:20px 0 18px;max-width:620px}
.hero-sub{font-size:17px;line-height:1.85;color:rgba(255,255,255,.78);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-visual{position:relative}
.hero-visual img{border-radius:var(--radius-lg);border:1px solid var(--c-line-dark);box-shadow:0 30px 60px -28px rgba(0,0,0,.85);width:100%;aspect-ratio:4/3}
.hero-visual::before{content:"";position:absolute;inset:-14px -14px 24px 24px;border:1px solid rgba(240,84,30,.5);border-radius:20px;z-index:-1}
.hero-tag{position:absolute;left:-16px;bottom:26px;background:#fff;color:var(--c-ink);border-radius:12px;padding:10px 16px;box-shadow:var(--shadow-m);font-size:13px;font-weight:700;display:flex;align-items:center;gap:8px}
.hero-tag em{font-style:normal;font-variant-numeric:tabular-nums;color:var(--c-primary);font-size:16px}

/* 数据带 */
.band-wrap{position:relative;z-index:5;margin-top:-56px}
.stats-band{background:var(--c-ink-2);border-radius:var(--radius-lg);display:grid;grid-template-columns:repeat(4,1fr);padding:34px 0;box-shadow:0 26px 50px -30px rgba(16,20,24,.7)}
.stat{padding:0 30px;border-right:1px solid var(--c-line-dark)}
.stat:last-child{border-right:0}
.stat-num{font-size:clamp(30px,3.4vw,44px);font-weight:800;color:#fff;font-variant-numeric:tabular-nums;line-height:1.08;letter-spacing:-.02em}
.stat-num em{font-style:normal;color:var(--c-primary);font-size:.52em;margin-left:3px}
.stat-label{margin-top:10px;font-size:14px;color:rgba(255,255,255,.66);line-height:1.6}

/* 功能不对称网格 */
.asym-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.feature-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-s);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;display:flex;flex-direction:column}
.feature-card:hover{transform:translateY(-3px);border-color:rgba(240,84,30,.3);box-shadow:var(--shadow-m)}
.feature-card--lg{grid-column:span 7;grid-row:span 2}
.feature-card--sm{grid-column:span 5}
.feature-card--lg img{width:100%;aspect-ratio:16/10}
.feature-card--sm{flex-direction:row;align-items:stretch}
.feature-card--sm img{width:132px;flex-shrink:0;aspect-ratio:1/1}
.feature-body{padding:24px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.feature-card--lg .feature-body{padding:28px 30px}
.feature-body h3{font-size:20px;line-height:1.35}
.feature-card--lg .feature-body h3{font-size:23px}
.feature-body p{font-size:15px;color:var(--c-muted);line-height:1.8}
.chip{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;background:var(--c-primary-soft);color:var(--c-primary-strong);font-size:12.5px;font-weight:700;letter-spacing:.04em;width:fit-content}
.chip--accent{background:var(--c-accent-soft);color:#0b7d67}
.chip--lime{background:rgba(198,242,78,.35);color:#40631a}
.dot-list{display:flex;flex-direction:column;gap:8px;margin-top:4px}
.dot-list li{position:relative;padding-left:18px;font-size:14.5px;color:#4b545d;line-height:1.7}
.dot-list li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--c-primary)}
.text-link{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:700;font-size:14.5px;margin-top:auto;padding-top:12px}
.text-link i{transition:transform .2s ease;font-style:normal}
.text-link:hover{text-decoration:underline}
.text-link:hover i{transform:translateX(3px)}

/* 场景图文交替 */
.scene-row{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center;padding:34px 0}
.scene-row+.scene-row{border-top:1px dashed var(--c-line)}
.scene-row.flip{grid-template-columns:7fr 5fr}
.scene-row.flip .scene-media{order:2}
.scene-media img{border-radius:var(--radius-lg);width:100%;aspect-ratio:4/3;box-shadow:var(--shadow-m)}
.scene-body h3{font-size:clamp(20px,2.4vw,26px);line-height:1.35;margin-bottom:14px}
.scene-body p{color:var(--c-muted);font-size:16px}
.scene-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.point-pill{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:10px;background:#fff;border:1px solid var(--c-line);font-size:13.5px;color:#454d56;font-weight:600}
.point-pill i{color:var(--c-accent)}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;position:relative;margin-top:14px}
.flow::before{content:"";position:absolute;top:32px;left:12%;right:12%;height:2px;background:repeating-linear-gradient(90deg,var(--c-line) 0 10px,transparent 10px 20px)}
.flow-step{position:relative;z-index:2;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);padding:26px 24px;box-shadow:var(--shadow-s);transition:transform .22s ease,box-shadow .22s ease}
.flow-step:hover{transform:translateY(-3px);box-shadow:var(--shadow-m)}
.flow-num{display:inline-grid;place-items:center;width:46px;height:46px;border-radius:12px;background:var(--c-ink);color:#fff;font-weight:800;font-size:17px;font-variant-numeric:tabular-nums;letter-spacing:.02em}
.flow-step h3{font-size:19px;margin:16px 0 10px}
.flow-step p{font-size:14.8px;color:var(--c-muted)}

/* 最新信息 */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-s);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.post-card:hover{transform:translateY(-3px);border-color:rgba(240,84,30,.3);box-shadow:var(--shadow-m)}
.post-thumb{overflow:hidden;aspect-ratio:16/9}
.post-thumb img{width:100%;height:100%;transition:transform .35s ease}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.post-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.post-date{font-size:13px;color:var(--c-muted);font-variant-numeric:tabular-nums}
.post-title{font-size:18px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-excerpt{font-size:14.5px;color:var(--c-muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.empty-state{border:1px dashed var(--c-line);background:var(--c-surface);border-radius:var(--radius);padding:48px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:12px}
.empty-state i{font-size:44px;color:#c9c5bd}
.empty-state h3{font-size:18px}
.empty-state p{font-size:14px;color:var(--c-muted)}
.empty-state .btn{margin-top:6px}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);box-shadow:var(--shadow-s);overflow:hidden}
.faq-item summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:17px 22px;min-height:56px;font-size:16.5px;font-weight:600;color:var(--c-ink);list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:22px;font-weight:400;color:var(--c-primary);line-height:1;transition:transform .25s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item[open] summary{background:var(--c-primary-soft)}
.faq-answer{padding:6px 22px 20px;font-size:15.2px;line-height:1.85;color:#4b545d;border-top:1px solid var(--c-line)}

/* 联系/转化 */
.contact-wrap{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:38px;align-items:start}
.contact-form{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-lg);padding:30px;box-shadow:var(--shadow-m)}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.field label{font-size:14px;font-weight:600;color:var(--c-ink)}
.field label em{font-style:normal;color:var(--c-primary);margin-left:3px}
.field input,.field select,.field textarea{height:46px;border:1px solid var(--c-line);border-radius:10px;padding:0 14px;background:#FCFBF9;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;width:100%}
.field textarea{height:auto;min-height:112px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 4px rgba(240,84,30,.12);outline:none}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-tip{font-size:13px;color:var(--c-muted);margin-top:12px}
.form-msg{font-size:13.5px;color:var(--c-accent);font-weight:600;margin-top:12px;display:none}
.info-panel{background:var(--c-ink);color:#fff;border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-m)}
.info-panel h3{color:#fff;font-size:22px;margin-bottom:14px}
.info-panel p{color:rgba(255,255,255,.72);font-size:15px}
.info-list{margin-top:24px;display:flex;flex-direction:column;gap:16px}
.info-item{display:flex;gap:14px;align-items:flex-start;padding-top:16px;border-top:1px solid var(--c-line-dark)}
.info-item:first-child{border-top:0;padding-top:0}
.info-item i{width:38px;height:38px;border-radius:10px;background:rgba(240,84,30,.18);color:var(--c-primary);display:grid;place-items:center;flex-shrink:0;font-size:15px}
.info-item strong{display:block;font-size:15px;color:#fff;margin-bottom:2px}
.info-item span{font-size:14px;color:rgba(255,255,255,.66)}

/* 页脚 */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:66px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;color:#fff;font-size:17px;margin-bottom:16px}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.02em}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.7);transition:color .2s ease,padding-left .2s ease}
.footer-links a:hover{color:var(--c-primary);padding-left:3px}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px}
.footer-bottom{border-top:1px solid var(--c-line-dark);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.5)}

@media (max-width:1024px){
  .section{padding:64px 0}
  .hero{padding:60px 0 118px}
  .hero-inner{grid-template-columns:1fr;gap:38px}
  .hero h1{max-width:none}
  .stats-band{grid-template-columns:repeat(2,1fr);row-gap:26px}
  .stat:nth-child(2){border-right:0}
  .stat{padding:0 24px}
  .feature-card--lg{grid-column:span 12;grid-row:auto}
  .feature-card--sm{grid-column:span 12}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .scene-row,.scene-row.flip{grid-template-columns:1fr;gap:26px}
  .scene-row.flip .scene-media{order:0}
  .flow{grid-template-columns:1fr;gap:18px}
  .flow::before{display:none}
  .faq-grid{grid-template-columns:1fr}
  .contact-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .main-nav,.nav-actions .btn{display:none}
  .nav-toggle{display:flex}
  .nav-inner{height:64px}
  .brand{font-size:15.5px}
  .section{padding:52px 0}
  .hero{padding:48px 0 108px}
  .hero-sub{font-size:16px}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%}
  .hero-tag{left:12px;bottom:14px}
  .band-wrap{margin-top:-40px}
  .stats-band{grid-template-columns:1fr;padding:26px 0;row-gap:0}
  .stat{border-right:0;border-bottom:1px solid var(--c-line-dark);padding:16px 24px}
  .stat:last-child{border-bottom:0}
  .post-grid{grid-template-columns:1fr}
  .feature-card--sm{flex-direction:column}
  .feature-card--sm img{width:100%;aspect-ratio:16/9}
  .field-row{grid-template-columns:1fr}
  .contact-form,.info-panel{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .section-head h2{font-size:22px}
  .feature-body{padding:20px}
  .feature-card--lg .feature-body{padding:22px}
}

/* roulang page: category1 */
:root{
  --c-primary:#F0541E;
  --c-primary-strong:#C93F0F;
  --c-primary-soft:#FFF0E8;
  --c-accent:#0FA98B;
  --c-accent-soft:#E6F7F3;
  --c-lime:#C6F24E;
  --c-ink:#0F1216;
  --c-ink-2:#1A1F26;
  --c-text:#232930;
  --c-muted:#6B7280;
  --c-bg:#F6F4F0;
  --c-surface:#FFFFFF;
  --c-line:#E3E1DC;
  --c-line-dark:rgba(255,255,255,.12);
  --radius-sm:8px;
  --radius:12px;
  --radius-lg:18px;
  --shadow-s:0 1px 2px rgba(16,20,24,.06);
  --shadow-m:0 10px 30px -12px rgba(16,20,24,.18);
  --shadow-h:0 16px 40px -16px rgba(240,84,30,.28);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:800;letter-spacing:-0.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 36px;}}
@media (min-width:1280px){.container{max-width:1280px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
  box-shadow:var(--shadow-s);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:68px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:var(--c-ink);letter-spacing:-0.01em;white-space:nowrap;}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-strong));
  box-shadow:0 6px 14px -8px rgba(240,84,30,.9);
  transform:skewX(-8deg);
}
.brand-mark i{font-style:normal;color:#fff;font-weight:800;font-size:16px;transform:skewX(8deg);}
.main-nav{display:none;align-items:center;gap:6px;}
@media (min-width:1024px){.main-nav{display:flex;}}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--c-text);border-radius:10px;
  transition:color .2s ease,background-color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:4px;width:0;height:2px;border-radius:2px;
  background:var(--c-primary);transform:translateX(-50%);transition:width .24s ease;
}
.nav-link:hover{color:var(--c-primary-strong);background:var(--c-primary-soft);}
.nav-link:hover::after{width:26px;}
.nav-link.active{color:var(--c-primary-strong);font-weight:700;background:var(--c-primary-soft);}
.nav-link.active::after{width:26px;}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:grid;place-items:center;gap:4px;width:44px;height:44px;padding:0;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:10px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
@media (min-width:1024px){.nav-toggle{display:none;}}
.mobile-drawer{
  display:none;border-top:1px solid var(--c-line);background:var(--c-surface);padding:10px 0 18px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:flex;align-items:center;min-height:48px;padding:0 20px;font-size:15px;font-weight:500;
  border-bottom:1px solid var(--c-line);color:var(--c-text);
}
.mobile-drawer a.active{color:var(--c-primary-strong);font-weight:700;background:var(--c-primary-soft);}
.mobile-drawer .drawer-cta{margin:14px 20px 0;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:10px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .18s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow-s);}
.btn-primary:hover{background:var(--c-primary-strong);transform:translateY(-1px);box-shadow:var(--shadow-h);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-s);}
.btn-ghost{background:var(--c-surface);color:var(--c-ink);border-color:var(--c-line);}
.btn-ghost:hover{color:var(--c-primary-strong);border-color:rgba(240,84,30,.5);background:var(--c-primary-soft);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-dark{background:var(--c-ink);color:#fff;}
.btn-dark:hover{background:var(--c-ink-2);transform:translateY(-1px);box-shadow:var(--shadow-m);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
.btn:focus-visible,.nav-link:focus-visible,.nav-toggle:focus-visible,a:focus-visible,button:focus-visible{
  outline:2px solid var(--c-primary);outline-offset:2px;
}
.btn[disabled]{opacity:.5;pointer-events:none;}
.link-arrow{color:var(--c-primary-strong);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.link-arrow::after{content:"→";transition:transform .2s ease;}
.link-arrow:hover{text-decoration:underline;}
.link-arrow:hover::after{transform:translateX(3px);}

/* ---------- pills / badges ---------- */
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
  background:var(--c-primary-soft);color:var(--c-primary-strong);
}
.pill-accent{background:var(--c-accent-soft);color:#0B7A64;}
.pill-lime{background:var(--c-lime);color:#26310A;max-width:120px;}
.eyebrow{
  font-size:12.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--c-primary-strong);
}

/* ---------- hero banner ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background-image:linear-gradient(100deg,rgba(15,18,22,.78),rgba(15,18,22,.62)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:auto -4% -1px -4%;height:56px;
  background:var(--c-bg);transform:skewY(-2.2deg);transform-origin:right bottom;
}
.hero-inner{position:relative;z-index:2;padding:38px 0 72px;max-width:820px;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;
  color:rgba(255,255,255,.72);margin-bottom:18px;
}
.breadcrumb a{color:rgba(255,255,255,.72);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:#fff;font-weight:600;}
.page-hero h1{color:#fff;font-size:clamp(28px,4.4vw,48px);line-height:1.18;letter-spacing:-0.02em;margin-bottom:14px;}
.page-hero .hero-sub{font-size:16px;line-height:1.8;color:rgba(255,255,255,.82);max-width:640px;}
.hero-hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:999px;
  font-size:13px;font-weight:600;color:#fff;border:1px solid var(--c-line-dark);background:rgba(255,255,255,.08);
}
.hero-tag i{font-style:normal;width:7px;height:7px;border-radius:50%;background:var(--c-lime);}

/* ---------- sections ---------- */
.section{padding:60px 0;}
@media (min-width:1024px){.section{padding:80px 0;}}
.section-head{max-width:720px;margin-bottom:34px;}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.25;margin-top:12px;}
.section-head p{margin-top:12px;color:var(--c-muted);font-size:16px;}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}

/* ---------- key points strip ---------- */
.point-strip{
  display:grid;grid-template-columns:1fr;gap:1px;background:var(--c-line);
  border:1px solid var(--c-line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-s);
}
@media (min-width:768px){.point-strip{grid-template-columns:repeat(3,1fr);}}
.point-item{background:var(--c-surface);padding:26px 24px;}
.point-item .num{
  font-family:"Barlow Condensed","DIN Alternate",system-ui,sans-serif;
  font-size:34px;font-weight:800;line-height:1;color:var(--c-primary);
  letter-spacing:-0.02em;
}
.point-item h3{font-size:19px;margin:12px 0 8px;}
.point-item p{font-size:14.5px;color:var(--c-muted);line-height:1.75;}

/* ---------- list layout with sidebar ---------- */
.layout-2col{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:1024px){.layout-2col{grid-template-columns:minmax(0,1fr) 340px;gap:44px;align-items:start;}}
.check-list{display:flex;flex-direction:column;gap:16px;}
.check-item{
  display:grid;grid-template-columns:56px minmax(0,1fr);gap:18px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-s);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.check-item:hover{transform:translateY(-2px);border-color:rgba(240,84,30,.35);box-shadow:var(--shadow-m);}
.check-no{
  width:56px;height:56px;border-radius:14px;display:grid;place-items:center;
  background:var(--c-primary-soft);color:var(--c-primary-strong);
  font-family:"Barlow Condensed","DIN Alternate",system-ui,sans-serif;
  font-size:22px;font-weight:800;letter-spacing:-0.02em;
}
.check-item h3{font-size:19px;margin-bottom:8px;}
.check-item p{font-size:15px;line-height:1.8;color:#3A424B;}
.check-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;
  font-size:12.5px;font-weight:600;background:var(--c-accent-soft);color:#0B7A64;
}
.tag-plain{background:#F1EFEA;color:#5A6069;}
.check-foot{margin-top:16px;display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.check-foot span{font-size:13px;color:var(--c-muted);}

/* ---------- sidebar ---------- */
.side{display:flex;flex-direction:column;gap:20px;}
@media (min-width:1024px){.side{position:sticky;top:92px;}}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-s);
}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:3px;height:16px;border-radius:2px;background:var(--c-primary);}
.side-links{display:flex;flex-direction:column;}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:14.5px;color:#3A424B;border-bottom:1px dashed var(--c-line);
  transition:color .18s ease,padding-left .18s ease;
}
.side-links a:last-child{border-bottom:0;}
.side-links a:hover{color:var(--c-primary-strong);padding-left:4px;}
.side-links a span{font-size:12px;color:var(--c-muted);}
.side-card.dark{background:var(--c-ink);border-color:var(--c-ink);color:#fff;}
.side-card.dark h3{color:#fff;}
.side-card.dark p{color:rgba(255,255,255,.72);font-size:14px;line-height:1.75;}
.side-card.dark .btn{margin-top:16px;width:100%;}
.side-stat{display:flex;align-items:baseline;gap:8px;margin-top:14px;}
.side-stat b{font-family:"Barlow Condensed","DIN Alternate",system-ui,sans-serif;font-size:30px;font-weight:800;color:var(--c-lime);line-height:1;}
.side-stat span{font-size:13px;color:rgba(255,255,255,.7);}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:18px;}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);gap:22px;}}
.step{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow-s);
}
@media (min-width:1024px){
  .step:not(:last-child)::after{
    content:"";position:absolute;top:46px;right:-16px;width:22px;height:2px;
    background:var(--c-line);border-radius:2px;
  }
}
.step-no{
  display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:28px;padding:0 10px;
  border-radius:8px;background:var(--c-ink);color:#fff;font-size:13px;font-weight:700;letter-spacing:.08em;
}
.step h3{font-size:18px;margin:14px 0 8px;}
.step p{font-size:14.5px;color:var(--c-muted);line-height:1.75;}

/* ---------- scenario split ---------- */
.split{display:grid;grid-template-columns:1fr;gap:26px;align-items:center;}
@media (min-width:1024px){.split{grid-template-columns:5fr 7fr;gap:48px;}}
.split-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-m);}
.split-media img{width:100%;height:100%;min-height:240px;object-fit:cover;}
.split-media .badge-float{
  position:absolute;left:16px;bottom:16px;padding:8px 14px;border-radius:999px;
  background:rgba(15,18,22,.78);color:#fff;font-size:13px;font-weight:600;
  border:1px solid var(--c-line-dark);
}
.split h2{font-size:clamp(23px,2.8vw,32px);line-height:1.28;margin-bottom:14px;}
.split p.lead{color:var(--c-muted);font-size:16px;margin-bottom:18px;}
.split-list{display:flex;flex-direction:column;gap:12px;}
.split-list li{display:flex;gap:12px;font-size:15px;color:#3A424B;}
.split-list li i{
  flex:0 0 auto;margin-top:7px;width:8px;height:8px;border-radius:2px;background:var(--c-accent);
  transform:skewX(-12deg);
}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);box-shadow:var(--shadow-s);overflow:hidden;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:-0.01em;
  transition:background-color .2s ease,color .2s ease;
}
.faq-q:hover{background:var(--c-primary-soft);color:var(--c-primary-strong);}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:8px;display:grid;place-items:center;
  background:var(--c-primary-soft);color:var(--c-primary-strong);font-size:16px;font-weight:700;
  transition:transform .25s ease,background-color .25s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--c-primary);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 22px 20px;font-size:15.5px;line-height:1.85;color:#3A424B;border-top:1px solid var(--c-line);padding-top:16px;}

/* ---------- CTA + form ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background-image:linear-gradient(105deg,rgba(15,18,22,.9),rgba(201,63,15,.78)),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;color:#fff;padding:36px;
  box-shadow:var(--shadow-m);
}
@media (min-width:1024px){.cta-band{padding:52px 48px;}}
.cta-band h2{color:#fff;font-size:clamp(23px,2.8vw,32px);line-height:1.28;}
.cta-band p{color:rgba(255,255,255,.82);margin-top:12px;max-width:560px;font-size:15.5px;}
.form-grid{display:grid;grid-template-columns:1fr;gap:26px;margin-top:30px;}
@media (min-width:1024px){.form-grid{grid-template-columns:minmax(0,1fr) 320px;gap:40px;}}
.field{margin-bottom:16px;}
.field label{display:block;font-size:14px;font-weight:600;color:#fff;margin-bottom:8px;}
.field .req{color:var(--c-lime);margin-left:4px;}
.field input,.field select,.field textarea{
  width:100%;min-height:48px;padding:12px 14px;font-size:15px;color:#fff;
  background:rgba(255,255,255,.08);border:1px solid var(--c-line-dark);border-radius:10px;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field textarea{min-height:110px;resize:vertical;}
.field select option{color:#111;}
.field input::placeholder,.field textarea::placeholder{color:rgba(255,255,255,.45);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);background:rgba(255,255,255,.14);
  box-shadow:0 0 0 3px rgba(240,84,30,.28);
}
.form-note{font-size:13px;color:rgba(255,255,255,.6);margin-top:12px;}
.info-box{
  border:1px solid var(--c-line-dark);background:rgba(255,255,255,.06);border-radius:var(--radius);padding:22px;
}
.info-box h3{color:#fff;font-size:17px;margin-bottom:14px;}
.info-box dl{margin:0;display:flex;flex-direction:column;gap:12px;}
.info-box dt{font-size:13px;color:rgba(255,255,255,.6);}
.info-box dd{margin:2px 0 0;font-size:15px;color:#fff;font-weight:600;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:56px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:40px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:16px;margin-bottom:14px;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px;}
.site-footer h4{color:#fff;font-size:14.5px;margin-bottom:14px;letter-spacing:.02em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.7);transition:color .18s ease,padding-left .18s ease;}
.footer-links a:hover{color:var(--c-primary);padding-left:3px;}
.footer-bottom{
  border-top:1px solid var(--c-line-dark);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- misc ---------- */
.notice{
  display:flex;gap:14px;align-items:flex-start;background:var(--c-accent-soft);
  border:1px solid rgba(15,169,139,.28);border-left:3px solid var(--c-accent);
  border-radius:var(--radius);padding:18px 20px;margin-top:26px;
}
.notice strong{color:#0B7A64;font-size:14.5px;}
.notice p{font-size:14px;color:#245C50;margin-top:4px;line-height:1.75;}
@media (max-width:520px){
  .hero-inner{padding:28px 0 60px;}
  .check-item{grid-template-columns:44px minmax(0,1fr);padding:18px;gap:14px;}
  .check-no{width:44px;height:44px;font-size:18px;border-radius:12px;}
  .cta-band{padding:26px 20px;}
  .faq-q{font-size:15.5px;padding:14px 16px;}
  .faq-a-inner{padding:14px 16px 18px;}
}

/* roulang page: article */
:root{
  --c-primary:#F0541E;
  --c-primary-strong:#C93F0F;
  --c-primary-soft:#FFF0E8;
  --c-accent:#0FA98B;
  --c-accent-soft:#E6F7F3;
  --c-lime:#C6F24E;
  --c-ink:#0F1216;
  --c-ink-2:#1A1F26;
  --c-text:#232930;
  --c-muted:#6B7280;
  --c-bg:#F6F4F0;
  --c-surface:#FFFFFF;
  --c-line:#E3E1DC;
  --c-line-dark:rgba(255,255,255,.12);
  --radius-sm:8px;
  --radius:12px;
  --radius-lg:18px;
  --shadow-s:0 1px 2px rgba(16,20,24,.06);
  --shadow-m:0 10px 30px -12px rgba(16,20,24,.18);
  --shadow-h:0 16px 40px -16px rgba(240,84,30,.28);
  --font-num:'Barlow Condensed','Oswald','DIN Alternate','HarmonyOS Sans SC',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body.page-article{
  margin:0;
  font-family:'HarmonyOS Sans SC','PingFang SC','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
body.nav-open{overflow:hidden}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font-family:inherit}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.01em}
.skip-link{position:absolute;left:-9999px;top:0;z-index:120;background:var(--c-primary);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;font-size:14px}
.skip-link:focus{left:0}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}

/* 导航 */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--c-line);box-shadow:var(--shadow-s);transition:box-shadow .25s ease}
.site-header.scrolled{box-shadow:var(--shadow-m)}
.nav-inner{display:flex;align-items:center;gap:16px;min-height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--c-ink);letter-spacing:-.01em;flex-shrink:0;min-height:44px}
.brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--c-primary),var(--c-primary-strong));color:#fff;display:grid;place-items:center;box-shadow:var(--shadow-h);transform:skewX(-8deg);flex:0 0 auto}
.brand-mark i{font-style:normal;font-weight:900;font-size:18px;transform:skewX(8deg)}
.main-nav{display:none}
.nav-link{position:relative;display:inline-flex;align-items:center;min-height:44px;padding:10px 14px;font-size:15px;font-weight:500;color:var(--c-text);border-radius:10px;transition:color .2s ease,background-color .2s ease}
.nav-link::after{content:"";position:absolute;left:50%;right:50%;bottom:6px;height:2px;border-radius:2px;background:var(--c-primary);transition:left .25s ease,right .25s ease}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{left:14px;right:14px}
.nav-link.active{color:var(--c-primary-strong);background:var(--c-primary-soft)}
.nav-link.active::after{left:14px;right:14px}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.nav-toggle{width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);background:#fff;display:grid;place-items:center;gap:4px;padding:0;cursor:pointer;transition:border-color .2s ease,background-color .2s ease}
.nav-toggle:hover{border-color:var(--c-primary);background:var(--c-primary-soft)}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink)}
@media (min-width:1024px){
  .main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
  .nav-actions{margin-left:0}
  .nav-toggle{display:none}
}
.nav-mask{position:fixed;inset:0;background:rgba(15,18,22,.48);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:55}
.nav-mask.open{opacity:1;visibility:visible}
.nav-drawer{position:fixed;top:0;right:0;height:100%;width:306px;max-width:86vw;background:#fff;z-index:60;transform:translateX(105%);transition:transform .28s ease;padding:18px 18px 24px;box-shadow:-24px 0 48px -28px rgba(0,0,0,.4);display:flex;flex-direction:column;gap:6px;overflow-y:auto}
.nav-drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--c-line)}
.brand-mini{display:inline-flex;align-items:center;gap:9px;font-weight:800;font-size:15px;color:var(--c-ink)}
.brand-mini .brand-mark{width:30px;height:30px;border-radius:9px}
.brand-mini .brand-mark i{font-size:16px}
.drawer-close{width:40px;height:40px;border:1px solid var(--c-line);background:#fff;border-radius:10px;font-size:20px;line-height:1;color:var(--c-text);cursor:pointer;transition:.2s}
.drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary)}
.drawer-nav{display:flex;flex-direction:column;margin-top:6px}
.drawer-link{display:flex;align-items:center;min-height:50px;padding:0 6px;border-bottom:1px solid var(--c-line);font-size:15.5px;color:var(--c-text)}
.drawer-link.active,.drawer-link:hover{color:var(--c-primary)}
.drawer-cta{margin-top:auto;width:100%}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:10px;border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;white-space:nowrap}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow-h)}
.btn-primary:hover{background:var(--c-primary-strong);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;border-color:var(--c-line);color:var(--c-ink)}
.btn-outline:hover{border-color:var(--c-primary);color:var(--c-primary-strong);background:var(--c-primary-soft)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.42);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none}

/* 标签 */
.pill{display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 12px;border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:.04em;background:var(--c-primary-soft);color:var(--c-primary-strong)}
.pill-accent{background:var(--c-accent-soft);color:#0B7C67}
.pill-lime{background:rgba(198,242,78,.3);color:#3E5F05}
.pill-dot{width:7px;height:7px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 3px rgba(15,169,139,.18)}

/* 面包屑 */
.breadcrumb-bar{background:var(--c-surface);border-bottom:1px solid var(--c-line)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:12px 0;font-size:13.5px;color:var(--c-muted)}
.breadcrumb a{color:var(--c-muted);transition:color .2s ease}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#C7C4BE}
.breadcrumb .current{color:var(--c-ink);font-weight:600;max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 文章头 */
.article-hero{position:relative;overflow:hidden;background:var(--c-surface);border-bottom:1px solid var(--c-line);padding:34px 0 30px}
.article-hero::after{content:"";position:absolute;right:-70px;top:-70px;width:230px;height:230px;background:var(--c-primary-soft);transform:rotate(12deg);border-radius:28px;z-index:0}
.article-hero .container{position:relative;z-index:1}
.article-title{font-size:clamp(26px,4vw,42px);line-height:1.24;font-weight:800;letter-spacing:-.02em;color:var(--c-ink);margin:16px 0 18px;max-width:920px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13.5px;color:var(--c-muted)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#CFCCC6}
.meta-strong{color:var(--c-text);font-weight:600}
.article-cover{margin-top:26px;border:1px solid var(--c-line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-m);background:#EDEAE4}
.article-cover img{width:100%;aspect-ratio:16/7;object-fit:cover}
@media (max-width:768px){
  .article-hero::after{display:none}
  .article-cover img{aspect-ratio:16/10}
}

/* 主体布局 */
.layout{display:grid;grid-template-columns:1fr;gap:32px;padding:40px 0 56px}
@media (min-width:1024px){
  .layout{grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:44px;padding:56px 0 72px}
}
.article-main{min-width:0}

/* 正文排版 */
.article-body{font-size:17px;line-height:1.85;color:var(--c-text)}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em}
.article-body h2{position:relative;font-size:26px;line-height:1.35;font-weight:800;color:var(--c-ink);margin:40px 0 16px;padding-left:14px}
.article-body h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:2px;background:var(--c-primary)}
.article-body h3{font-size:21px;line-height:1.4;font-weight:800;color:var(--c-ink);margin:24px 0 12px}
.article-body h4{font-size:18px;font-weight:700;color:var(--c-ink);margin:20px 0 10px}
.article-body ul{list-style:disc;padding-left:1.4em;margin:0 0 1.1em}
.article-body ol{list-style:decimal;padding-left:1.4em;margin:0 0 1.1em}
.article-body li{margin-bottom:.5em}
.article-body blockquote{margin:0 0 1.2em;padding:14px 20px;border-left:3px solid var(--c-primary);background:var(--c-primary-soft);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:#3A4048}
.article-body img{border-radius:12px;margin:22px auto}
.article-body figure{margin:22px 0}
.article-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:8px}
.article-body a{color:var(--c-primary-strong);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--c-primary)}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:0 0 1.2em}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:10px 12px;text-align:left;vertical-align:top}
.article-body thead th{background:#F0EEE9;font-weight:700;color:var(--c-ink)}
.article-body tbody tr:nth-child(even){background:#FAF9F7}
.article-body code{background:#EFEDE8;border-radius:6px;padding:2px 6px;font-size:.92em}
.article-body pre{background:#15191F;color:#E8E6E1;border-radius:var(--radius);padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.7;margin:0 0 1.2em}
.article-body pre code{background:none;padding:0;color:inherit}
@media (max-width:640px){
  .article-body{font-size:16px}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:19px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
}

/* 空态 */
.empty-state{border:1px dashed var(--c-line);background:#FDFCFA;border-radius:var(--radius);padding:44px 24px;text-align:center}
.empty-icon{width:56px;height:56px;margin:0 auto 16px;border-radius:16px;background:var(--c-primary-soft);color:var(--c-primary-strong);display:grid;place-items:center;font-size:24px;font-weight:800}
.article-body .empty-state h2{margin:0 0 10px;padding:0;font-size:20px}
.article-body .empty-state h2::before{display:none}
.empty-text{font-size:14.5px;color:var(--c-muted);max-width:520px;margin:0 auto 20px}

/* 标签行 / 上下篇 */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:38px;padding-top:22px;border-top:1px solid var(--c-line)}
.tag-label{font-size:13px;letter-spacing:.1em;color:var(--c-muted);font-weight:700}
.tag{display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:999px;background:#F2F0EB;border:1px solid var(--c-line);font-size:13.5px;color:var(--c-text);transition:.2s ease}
.tag:hover{background:var(--c-primary-soft);border-color:rgba(240,84,30,.35);color:var(--c-primary-strong)}
.post-nav{display:grid;grid-template-columns:1fr;gap:14px;margin-top:26px}
@media (min-width:640px){.post-nav{grid-template-columns:repeat(2,1fr)}}
.post-nav-item{display:flex;flex-direction:column;gap:6px;padding:16px 18px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);transition:.22s ease;min-height:44px}
.post-nav-item:hover{border-color:rgba(240,84,30,.3);box-shadow:var(--shadow-s);transform:translateY(-2px)}
.post-nav-item.next{align-items:flex-end;text-align:right}
.pn-label{font-size:12.5px;letter-spacing:.1em;font-weight:700;color:var(--c-muted)}
.pn-title{font-size:15px;font-weight:700;line-height:1.55;color:var(--c-ink)}
.back-row{margin-top:20px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--c-primary-strong);transition:color .2s ease}
.link-arrow span{transition:transform .2s ease}
.link-arrow:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px}
.link-arrow:hover span{transform:translateX(2px)}

/* 侧栏 */
.sidebar{display:flex;flex-direction:column;gap:20px;min-width:0}
@media (min-width:1024px){.sidebar{position:sticky;top:92px;align-self:start}}
.side-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);box-shadow:var(--shadow-s);padding:20px}
.side-title{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:800;color:var(--c-ink);margin:0 0 12px}
.side-title::before{content:"";width:12px;height:3px;border-radius:2px;background:var(--c-primary)}
.side-links{display:flex;flex-direction:column}
.side-link{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:46px;padding:8px 10px;border-radius:8px;font-size:14.5px;color:var(--c-text);transition:.2s ease}
.side-link:hover{background:var(--c-primary-soft);color:var(--c-primary-strong)}
.side-link span{color:var(--c-primary)}
.side-news{list-style:none;margin:0;padding:0}
.side-news li{padding:10px 0;border-bottom:1px dashed var(--c-line)}
.side-news li:last-child{border-bottom:0;padding-bottom:0}
.side-news a{display:block;font-size:14.5px;line-height:1.6;color:var(--c-text);transition:color .2s ease}
.side-news a:hover{color:var(--c-primary)}
.side-date{display:block;margin-top:4px;font-size:12.5px;color:var(--c-muted);font-variant-numeric:tabular-nums}
.side-cta{background:var(--c-ink);border:1px solid var(--c-ink-2);border-radius:var(--radius);padding:22px;color:rgba(255,255,255,.78)}
.side-cta .side-kicker{font-size:12px;letter-spacing:.12em;font-weight:700;color:var(--c-lime)}
.side-cta h3{font-size:17px;font-weight:800;color:#fff;margin:8px 0 10px}
.side-cta p{font-size:14px;line-height:1.75;margin:0 0 16px}

/* 板块 */
.section{padding:52px 0}
@media (min-width:1024px){.section{padding:76px 0}}
.related-section{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px}
.kicker{display:inline-block;font-size:12.5px;letter-spacing:.14em;font-weight:700;color:var(--c-primary-strong);background:var(--c-primary-soft);padding:5px 12px;border-radius:999px;margin-bottom:12px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:800;color:var(--c-ink);letter-spacing:-.02em;line-height:1.3}
.section-sub{font-size:14.5px;color:var(--c-muted);max-width:640px;margin-top:10px}

/* 卡片 */
.card-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);gap:24px}}
.card{display:flex;flex-direction:column;height:100%;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-s);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.card:hover{transform:translateY(-2px);border-color:rgba(240,84,30,.25);box-shadow:var(--shadow-m)}
.card-thumb{aspect-ratio:16/9;overflow:hidden;background:#EDEAE4}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-thumb img{transform:scale(1.03)}
.card-body{display:flex;flex-direction:column;gap:10px;flex:1;padding:18px 20px 20px}
.card-tag{font-size:12px;font-weight:700;letter-spacing:.08em;color:#0B7C67;background:var(--c-accent-soft);padding:4px 10px;border-radius:999px;align-self:flex-start}
.card-title{font-size:17px;font-weight:700;line-height:1.5;color:var(--c-ink)}
.card-text{font-size:14px;line-height:1.72;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;gap:10px;margin-top:auto;font-size:12.5px;color:var(--c-muted)}
.card-meta .dot{width:4px;height:4px;border-radius:50%;background:#CFCCC6}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:1fr;gap:14px}
@media (min-width:900px){.faq-grid{grid-template-columns:repeat(2,1fr);gap:16px}}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.open{border-color:rgba(240,84,30,.32);box-shadow:var(--shadow-s)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:14px 20px;background:none;border:0;text-align:left;font-size:16px;font-weight:700;color:var(--c-ink);cursor:pointer;line-height:1.5}
.faq-icon{flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--c-primary-soft);color:var(--c-primary-strong);display:grid;place-items:center;font-size:16px;font-weight:800;line-height:1;transition:transform .25s ease,background-color .2s ease,color .2s ease}
.faq-item.open .faq-icon{background:var(--c-primary);color:#fff;transform:rotate(45deg)}
.faq-a{display:none;padding:0 20px 20px;font-size:15px;line-height:1.8;color:#39404A}
.faq-a a{color:var(--c-primary-strong);text-decoration:underline;text-underline-offset:3px}
.faq-item.open .faq-a{display:block}

/* CTA 横幅 */
.cta-band{position:relative;overflow:hidden;background:var(--c-ink);color:rgba(255,255,255,.8)}
.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::after{content:"";position:absolute;top:-90px;bottom:-90px;right:8%;width:170px;background:var(--c-primary);opacity:.16;transform:rotate(12deg)}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr;gap:26px;padding:52px 0}
@media (min-width:1024px){.cta-inner{grid-template-columns:1.5fr 1fr;align-items:center;gap:40px;padding:64px 0}}
.cta-inner h2{font-size:clamp(23px,2.8vw,34px);font-weight:800;color:#fff;line-height:1.3;margin:14px 0 12px;letter-spacing:-.02em}
.cta-inner p{font-size:15.5px;line-height:1.85;max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (min-width:1024px){.cta-actions{justify-content:flex-end}}

/* 页脚 */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:30px;padding:52px 0 34px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding:64px 0 40px}}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:800;color:#fff;margin-bottom:14px}
.footer-about{font-size:14px;line-height:1.85;max-width:360px;margin:0}
.site-footer h4{font-size:15px;font-weight:700;color:#fff;margin:0 0 12px}
.footer-links{display:flex;flex-direction:column}
.footer-links a{display:inline-flex;align-items:center;min-height:38px;font-size:14px;color:rgba(255,255,255,.72);transition:color .2s ease}
.footer-links a:hover{color:var(--c-primary)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;border-top:1px solid var(--c-line-dark);padding:18px 0 28px;font-size:13px;color:rgba(255,255,255,.55)}

/* roulang page: category2 */
:root{
  --c-primary:#F0541E;
  --c-primary-strong:#C93F0F;
  --c-primary-soft:#FFF0E8;
  --c-accent:#0FA98B;
  --c-accent-soft:#E6F7F3;
  --c-lime:#C6F24E;
  --c-ink:#0F1216;
  --c-ink-2:#1A1F26;
  --c-text:#232930;
  --c-muted:#6B7280;
  --c-bg:#F6F4F0;
  --c-surface:#FFFFFF;
  --c-line:#E3E1DC;
  --c-line-dark:rgba(255,255,255,.12);
  --radius-sm:8px;
  --radius:12px;
  --radius-lg:18px;
  --shadow-s:0 1px 2px rgba(16,20,24,.06);
  --shadow-m:0 10px 30px -12px rgba(16,20,24,.18);
  --shadow-h:0 16px 40px -16px rgba(240,84,30,.28);
  --font-base:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Barlow Condensed","Oswald","DIN Alternate","HarmonyOS Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
input,textarea,select{font-family:inherit;font-size:15px}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;line-height:1.25}
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:4px}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 40px}
@media (max-width:768px){.container{padding:0 20px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
  box-shadow:var(--shadow-s);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:var(--c-ink);letter-spacing:-.01em;white-space:nowrap}
.brand-mark{
  width:34px;height:34px;flex:none;border-radius:9px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-strong));
  display:flex;align-items:center;justify-content:center;
  transform:skewX(-8deg);
  box-shadow:0 6px 16px -8px rgba(240,84,30,.7);
}
.brand-mark i{font-style:normal;color:#fff;font-weight:800;font-size:17px;transform:skewX(8deg)}
.main-nav{display:flex;align-items:center;gap:32px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--c-text);padding:6px 0;transition:color .2s ease;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:50%;bottom:-2px;width:0;height:2px;background:var(--c-primary);border-radius:2px;transform:translateX(-50%);transition:width .24s ease}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--c-primary);font-weight:600}
.nav-link.active::after{width:100%}
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:10px;
  background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:10px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .18s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 10px 24px -14px rgba(240,84,30,.85)}
.btn-primary:hover{background:var(--c-primary-strong);transform:translateY(-1px);box-shadow:var(--shadow-h)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-s)}
.btn-ghost{background:#fff;color:var(--c-ink);border-color:var(--c-line)}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft)}
.btn-ghost:active{transform:translateY(1px)}
.btn-dark-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn-dark-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn[disabled],.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none!important;box-shadow:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);font-weight:600;font-size:14px;transition:gap .2s ease,color .2s ease}
.link-arrow::after{content:"→";transition:transform .2s ease}
.link-arrow:hover{color:var(--c-primary-strong);text-decoration:underline}
.link-arrow:hover::after{transform:translateX(2px)}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  min-height:300px;
  display:flex;align-items:flex-end;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(15,18,22,.82) 0%,rgba(15,18,22,.68) 100%);
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:-46px;height:92px;
  background:var(--c-bg);
  transform:skewY(-2.4deg);
  transform-origin:left bottom;
}
.page-hero .container{position:relative;z-index:2;padding-top:56px;padding-bottom:64px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:16px;flex-wrap:wrap}
.breadcrumb a{color:rgba(255,255,255,.72);transition:color .2s ease}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.4)}
.breadcrumb .current{color:#fff}
.page-hero h1{font-size:clamp(30px,4.4vw,50px);line-height:1.15;letter-spacing:-.02em;color:#fff;max-width:760px}
.page-hero p{margin-top:16px;max-width:660px;font-size:16.5px;color:rgba(255,255,255,.82)}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(198,242,78,.16);border:1px solid rgba(198,242,78,.45);
  color:var(--c-lime);font-size:12.5px;font-weight:600;letter-spacing:.1em;
  margin-bottom:18px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--c-lime)}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.hero-actions .btn-dark-ghost{backdrop-filter:blur(2px)}

/* ---------- sections ---------- */
.section{padding:84px 0}
.section-tight{padding:64px 0}
@media (max-width:768px){.section{padding:52px 0}.section-tight{padding:44px 0}}
.section-head{max-width:760px;margin-bottom:40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.14em;
  color:var(--c-primary);background:var(--c-primary-soft);
  padding:5px 12px;border-radius:999px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(24px,3vw,36px);letter-spacing:-.015em}
.section-head p{margin-top:14px;color:var(--c-muted);font-size:16px}

/* ---------- filter strip ---------- */
.filter-strip{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-lg);
  padding:18px 22px;box-shadow:var(--shadow-s);
  display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  margin-bottom:36px;
}
.filter-strip .strip-label{font-size:13.5px;font-weight:700;color:var(--c-ink);letter-spacing:.02em;white-space:nowrap}
.filter-tags{display:flex;gap:10px;flex-wrap:wrap}
.tag-pill{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);color:var(--c-text);
  font-size:13.5px;font-weight:600;cursor:pointer;
  transition:border-color .2s ease,color .2s ease,background-color .2s ease,transform .18s ease;
}
.tag-pill:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);transform:translateY(-1px)}
.tag-pill.is-active{background:var(--c-ink);border-color:var(--c-ink);color:#fff}
.tag-pill.is-active:hover{transform:none;color:#fff;background:var(--c-ink)}

/* ---------- cards grid ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-s);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-3px);border-color:rgba(240,84,30,.35);box-shadow:var(--shadow-m)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#e9e7e2}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(15,18,22,0) 45%,rgba(15,18,22,.55) 100%)}
.card-tag{
  position:absolute;left:14px;bottom:14px;z-index:2;
  display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;
  background:rgba(255,255,255,.92);color:var(--c-primary-strong);
  font-size:12px;font-weight:700;letter-spacing:.06em;
}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:19px;line-height:1.4}
.card-body p{font-size:14.5px;color:var(--c-muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;padding-top:14px;border-top:1px dashed var(--c-line);display:flex;align-items:center;justify-content:space-between}
.card-foot .meta{font-size:12.5px;color:var(--c-muted)}

/* ---------- stat band ---------- */
.stat-band{background:var(--c-ink);color:#fff;position:relative;overflow:hidden}
.stat-band::before{
  content:"";position:absolute;top:-60px;right:-80px;width:320px;height:320px;
  background:radial-gradient(circle,rgba(240,84,30,.28),transparent 68%);
}
.stat-grid{position:relative;display:grid;grid-template-columns:repeat(4,1fr)}
.stat-item{padding:8px 28px;border-left:1px solid var(--c-line-dark)}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-item .num{
  font-family:var(--font-num);
  font-size:clamp(36px,4.2vw,48px);
  font-weight:700;line-height:1;letter-spacing:.01em;
  font-variant-numeric:tabular-nums;
  color:#fff;
}
.stat-item .num em{font-style:normal;color:var(--c-lime);font-size:.55em;margin-left:4px}
.stat-item .label{margin-top:12px;font-size:15px;font-weight:600;color:#fff}
.stat-item .desc{margin-top:6px;font-size:13.5px;color:rgba(255,255,255,.66);line-height:1.7}

/* ---------- steps ---------- */
.steps{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.steps::before{
  content:"";position:absolute;top:26px;left:6%;right:6%;height:2px;
  background:repeating-linear-gradient(90deg,var(--c-line) 0 10px,transparent 10px 20px);
}
.step{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius);padding:26px 24px;box-shadow:var(--shadow-s);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step:hover{transform:translateY(-3px);border-color:rgba(15,169,139,.35);box-shadow:var(--shadow-m)}
.step-num{
  position:relative;z-index:1;width:52px;height:52px;border-radius:14px;
  background:var(--c-primary-soft);color:var(--c-primary-strong);
  font-family:var(--font-num);font-size:24px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  margin-top:-52px;margin-bottom:18px;
  border:1px solid rgba(240,84,30,.24);
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:19px;margin-bottom:10px}
.step p{font-size:14.5px;color:var(--c-muted)}
.step ul{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.step ul li{position:relative;padding-left:18px;font-size:14px;color:var(--c-text)}
.step ul li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;background:var(--c-accent);transform:rotate(45deg)}

/* ---------- split block ---------- */
.split{display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:center}
.split.reverse .split-media{order:2}
.split-media{position:relative}
.split-media img{width:100%;border-radius:var(--radius-lg);box-shadow:var(--shadow-m);aspect-ratio:4/3;object-fit:cover}
.split-media .frame-deco{
  position:absolute;right:-14px;bottom:-14px;width:120px;height:120px;
  border:3px solid var(--c-accent);border-radius:var(--radius-lg);z-index:-1;
}
.split-body h2{font-size:clamp(23px,2.7vw,32px)}
.split-body > p{margin-top:16px;color:var(--c-muted);font-size:15.5px}
.check-list{margin-top:24px;display:flex;flex-direction:column;gap:14px}
.check-list li{display:flex;gap:14px;padding:16px 18px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius)}
.check-list .ico{
  flex:none;width:30px;height:30px;border-radius:9px;background:var(--c-accent-soft);
  color:var(--c-accent);display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:14px;
}
.check-list .txt strong{display:block;font-size:15.5px;color:var(--c-ink);margin-bottom:4px}
.check-list .txt span{font-size:14px;color:var(--c-muted);line-height:1.7}

/* ---------- faq ---------- */
.faq-wrap{max-width:920px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item[open]{border-color:rgba(240,84,30,.35);box-shadow:var(--shadow-s)}
.faq-item summary{
  list-style:none;cursor:pointer;
  min-height:56px;padding:18px 24px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:16px;font-weight:600;color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";flex:none;width:11px;height:11px;
  border-right:2px solid var(--c-muted);border-bottom:2px solid var(--c-muted);
  transform:rotate(45deg);transition:transform .22s ease,border-color .22s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--c-primary)}
.faq-item summary:hover{background:var(--c-primary-soft)}
.faq-answer{padding:0 24px 22px;font-size:15px;color:var(--c-muted);line-height:1.85;border-top:1px dashed var(--c-line);padding-top:18px}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,var(--c-primary) 0%,var(--c-primary-strong) 100%);
  border-radius:var(--radius-lg);
  padding:52px 56px;color:#fff;
}
.cta-band::after{
  content:"";position:absolute;top:-40px;right:-40px;width:260px;height:260px;
  background:rgba(255,255,255,.09);transform:rotate(12deg);border-radius:32px;
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.6vw,32px)}
.cta-inner p{margin-top:12px;max-width:600px;color:rgba(255,255,255,.88);font-size:15.5px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-ghost{background:#fff;border-color:#fff;color:var(--c-primary-strong)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.88);color:var(--c-primary-strong);border-color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:#fff;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:44px;padding:64px 0 44px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px;color:#fff;margin-bottom:16px}
.footer-about{font-size:14px;color:rgba(255,255,255,.7);line-height:1.85;max-width:340px}
.site-footer h4{font-size:14px;color:#fff;letter-spacing:.06em;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.7);transition:color .2s ease}
.footer-links a:hover{color:var(--c-primary)}
.footer-bottom{
  border-top:1px solid var(--c-line-dark);
  padding:22px 0 30px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .main-nav{gap:22px}
  .nav-link{font-size:14px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:36px}
  .split.reverse .split-media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:0}
  .stat-item{padding:22px 26px;border-left:1px solid var(--c-line-dark)}
  .stat-item:nth-child(odd){border-left:0;padding-left:0}
  .steps{grid-template-columns:1fr;gap:34px}
  .steps::before{display:none}
  .step-num{margin-top:0}
}
@media (max-width:900px){
  .nav-toggle{display:flex}
  .main-nav{
    position:fixed;top:68px;right:0;width:300px;max-width:88vw;
    height:calc(100vh - 68px);
    background:#fff;border-left:1px solid var(--c-line);
    box-shadow:var(--shadow-m);
    flex-direction:column;align-items:stretch;gap:0;
    padding:18px 22px 28px;
    transform:translateX(105%);
    transition:transform .28s ease;
    overflow-y:auto;
  }
  .main-nav.is-open{transform:translateX(0)}
  .main-nav .nav-link{
    min-height:50px;display:flex;align-items:center;
    border-bottom:1px solid var(--c-line);padding:0;
  }
  .main-nav .nav-link::after{display:none}
  .nav-actions .btn-sm{display:none}
}
@media (max-width:768px){
  .page-hero{min-height:260px}
  .page-hero::after{bottom:-30px;height:60px}
  .section-head{margin-bottom:28px}
  .card-grid{grid-template-columns:1fr}
  .cta-band{padding:36px 24px}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding:46px 0 32px}
  .footer-bottom{justify-content:flex-start}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%}
  .stat-grid{grid-template-columns:1fr}
  .stat-item{border-left:0;padding-left:0;border-top:1px solid var(--c-line-dark);padding-top:20px;margin-top:20px}
  .stat-item:first-child{border-top:0;margin-top:0;padding-top:0}
  .filter-strip{padding:16px}
  .card-body{padding:18px}
}

/* roulang page: category3 */
:root{
  --c-primary:#F0541E;
  --c-primary-strong:#C93F0F;
  --c-primary-soft:#FFF0E8;
  --c-accent:#0FA98B;
  --c-accent-soft:#E6F7F3;
  --c-lime:#C6F24E;
  --c-ink:#0F1216;
  --c-ink-2:#1A1F26;
  --c-text:#232930;
  --c-muted:#6B7280;
  --c-bg:#F6F4F0;
  --c-surface:#FFFFFF;
  --c-line:#E3E1DC;
  --c-line-dark:rgba(255,255,255,.12);
  --radius-sm:8px;
  --radius:12px;
  --radius-lg:18px;
  --shadow-s:0 1px 2px rgba(16,20,24,.06);
  --shadow-m:0 10px 30px -12px rgba(16,20,24,.18);
  --shadow-h:0 16px 40px -16px rgba(240,84,30,.28);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);letter-spacing:-.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
input,textarea,select{font-family:inherit;font-size:15px;color:var(--c-text);}
: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:1280px){.container{max-width:1280px;padding:0 40px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-line);
  backdrop-filter:saturate(180%) blur(8px);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-m);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:68px;}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:var(--c-ink);letter-spacing:-.02em;}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:9px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-strong));
  display:inline-flex;align-items:center;justify-content:center;
  transform:skewX(-12deg);
  box-shadow:var(--shadow-h);
}
.brand-mark i{font-style:normal;color:#fff;font-weight:800;font-size:16px;transform:skewX(12deg);}
.main-nav{display:none;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;
  padding:0 14px;font-size:15px;font-weight:500;color:var(--c-text);
  border-radius:var(--radius-sm);transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;height:2px;width:0;
  background:var(--c-primary);transform:translateX(-50%);transition:width .22s ease;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.nav-link:hover::after{width:22px;}
.nav-link.active{color:var(--c-primary);font-weight:600;background:var(--c-primary-soft);}
.nav-link.active::after{width:22px;}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:var(--radius-sm);
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
  transition:border-color .2s ease,background .2s ease;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle:hover{border-color:var(--c-primary);background:var(--c-primary-soft);}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-drawer{
  display:none;position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;z-index:60;
  background:#fff;border-left:1px solid var(--c-line);box-shadow:var(--shadow-m);
  padding:22px 20px;transform:translateX(100%);transition:transform .3s ease;
}
.mobile-drawer.open{display:block;transform:translateX(0);}
.mobile-drawer h4{font-size:13px;letter-spacing:.12em;color:var(--c-muted);margin-bottom:10px;text-transform:uppercase;}
.drawer-link{display:flex;align-items:center;height:48px;padding:0 12px;border-bottom:1px solid var(--c-line);font-size:15px;font-weight:500;}
.drawer-link:last-of-type{border-bottom:0;}
.drawer-link.active{color:var(--c-primary);}
.drawer-close{position:absolute;top:14px;right:14px;width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:var(--radius-sm);cursor:pointer;font-size:18px;line-height:1;color:var(--c-muted);}
.drawer-backdrop{display:none;position:fixed;inset:0;background:rgba(15,18,22,.45);z-index:55;}
.drawer-backdrop.open{display:block;}
@media (min-width:1024px){
  .main-nav{display:flex;}
  .nav-toggle{display:none;}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:10px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--shadow-h);}
.btn-primary:hover{background:var(--c-primary-strong);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-s);}
.btn-ghost{background:#fff;color:var(--c-ink);border-color:var(--c-line);}
.btn-ghost:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-1px);}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{color:var(--c-primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.link-arrow span{transition:transform .2s ease;}
.link-arrow:hover span{transform:translateX(3px);}
.link-arrow:hover{text-decoration:underline;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  background-color:var(--c-ink);
  background-image:linear-gradient(100deg,rgba(15,18,22,.88) 0%,rgba(15,18,22,.66) 55%,rgba(15,18,22,.72) 100%),url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  padding:64px 0 68px;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:44px;
  background:var(--c-bg);transform:skewY(-2.2deg);transform-origin:left bottom;
}
.page-hero .hero-inner{position:relative;z-index:2;max-width:760px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 12px;border-radius:999px;
  background:rgba(240,84,30,.22);border:1px solid rgba(240,84,30,.55);
  font-size:12.5px;letter-spacing:.12em;color:#fff;margin-bottom:18px;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--c-lime);}
.page-hero h1{color:#fff;font-size:clamp(28px,4.4vw,44px);line-height:1.18;font-weight:800;letter-spacing:-.02em;}
.page-hero p.hero-sub{margin-top:16px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.82);max-width:620px;}
.hero-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px;}
.hero-stats{
  margin-top:34px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  border-top:1px solid var(--c-line-dark);padding-top:20px;gap:16px;
}
.hero-stats .stat{display:flex;flex-direction:column;gap:2px;}
.hero-stats .stat b{font-size:26px;font-weight:800;color:#fff;line-height:1.1;font-variant-numeric:tabular-nums;}
.hero-stats .stat span{font-size:13px;color:rgba(255,255,255,.66);}
@media (min-width:768px){
  .page-hero{padding:86px 0 92px;}
  .hero-stats{grid-template-columns:repeat(4,minmax(0,1fr));gap:0;}
  .hero-stats .stat{padding-right:24px;border-right:1px solid var(--c-line-dark);padding-left:24px;}
  .hero-stats .stat:first-child{padding-left:0;}
  .hero-stats .stat:last-child{border-right:0;}
}

/* ---------- breadcrumb ---------- */
.crumb-bar{padding:16px 0 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#B9B6AF;}
.crumb .current{color:var(--c-ink);font-weight:600;}

/* ---------- sections ---------- */
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:84px 0;}}
.section-head{max-width:720px;margin-bottom:34px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:600;letter-spacing:.14em;
  color:var(--c-primary);margin-bottom:12px;
}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--c-primary);display:inline-block;}
.section-head h2{font-size:clamp(23px,2.9vw,34px);line-height:1.26;font-weight:800;}
.section-head p{margin-top:12px;color:var(--c-muted);font-size:16px;}
.surface{background:var(--c-surface);}

/* ---------- split blocks (图文交替) ---------- */
.split{display:grid;gap:28px;align-items:center;}
@media (min-width:1024px){
  .split{grid-template-columns:5fr 7fr;gap:56px;}
  .split.reverse .split-media{order:2;}
  .split.reverse .split-body{order:1;}
}
.split-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-m);}
.split-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .5s ease;}
.split-media:hover img{transform:scale(1.03);}
.split-media .media-tag{
  position:absolute;left:14px;top:14px;display:inline-flex;align-items:center;gap:6px;
  height:28px;padding:0 12px;border-radius:999px;background:rgba(15,18,22,.72);color:#fff;
  font-size:12.5px;letter-spacing:.06em;backdrop-filter:blur(4px);
}
.split-media .media-corner{
  position:absolute;right:0;bottom:0;width:78px;height:78px;
  background:linear-gradient(135deg,transparent 50%,rgba(240,84,30,.92) 50%);
}
.split-body h3{font-size:clamp(20px,2.2vw,25px);line-height:1.35;font-weight:800;}
.split-body p{margin-top:14px;color:var(--c-text);line-height:1.85;}
.feature-list{margin-top:20px;display:grid;gap:12px;}
.feature-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;line-height:1.7;}
.feature-list li .mk{
  flex:0 0 22px;width:22px;height:22px;border-radius:6px;background:var(--c-accent-soft);
  color:var(--c-accent);display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;margin-top:3px;
}
.feature-list li .mk.orange{background:var(--c-primary-soft);color:var(--c-primary);}

/* ---------- steps ---------- */
.steps-wrap{position:relative;}
.steps{display:grid;gap:20px;counter-reset:step;}
@media (min-width:768px){.steps{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}}
@media (min-width:1024px){
  .steps-line{position:absolute;top:30px;left:8%;right:8%;height:2px;background:repeating-linear-gradient(90deg,var(--c-line) 0 10px,transparent 10px 18px);}
}
.step-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);
  padding:26px 24px;box-shadow:var(--shadow-s);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-m);border-color:rgba(240,84,30,.28);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;
  background:var(--c-ink);color:var(--c-lime);font-weight:800;font-size:18px;letter-spacing:.02em;
  transform:skewX(-10deg);margin-bottom:16px;
}
.step-num i{font-style:normal;transform:skewX(10deg);}
.step-card h3{font-size:19px;font-weight:700;}
.step-card p{margin-top:10px;color:var(--c-muted);font-size:15px;line-height:1.8;}

/* ---------- info cards ---------- */
.card-grid{display:grid;gap:20px;}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
.info-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow-s);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-m);border-color:rgba(240,84,30,.25);}
.info-card h3{font-size:18px;font-weight:700;display:flex;align-items:center;gap:10px;}
.info-card h3 .pip{width:8px;height:8px;border-radius:2px;background:var(--c-primary);transform:rotate(45deg);flex:0 0 8px;}
.info-card p{margin-top:12px;color:var(--c-muted);font-size:15px;line-height:1.8;}
.tag-line{margin-top:16px;display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- tags ---------- */
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;
  background:var(--c-primary-soft);color:var(--c-primary-strong);font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.tag.accent{background:var(--c-accent-soft);color:#0B7C66;}
.tag.lime{background:var(--c-lime);color:#2A3208;}

/* ---------- dark band ---------- */
.band-dark{
  background:var(--c-ink);color:#fff;position:relative;overflow:hidden;
}
.band-dark::before{
  content:"";position:absolute;top:0;left:0;right:0;height:6px;
  background:repeating-linear-gradient(115deg,var(--c-primary) 0 22px,transparent 22px 44px);
  opacity:.85;
}
.band-dark h2{color:#fff;}
.band-dark .section-head p{color:rgba(255,255,255,.7);}
.data-grid{display:grid;gap:0;border:1px solid var(--c-line-dark);border-radius:var(--radius-lg);overflow:hidden;}
@media (min-width:768px){.data-grid{grid-template-columns:repeat(4,minmax(0,1fr));}}
.data-cell{padding:26px 22px;border-bottom:1px solid var(--c-line-dark);}
@media (min-width:768px){
  .data-cell{border-bottom:0;border-right:1px solid var(--c-line-dark);}
  .data-cell:last-child{border-right:0;}
}
.data-cell b{display:block;font-size:clamp(30px,4vw,44px);font-weight:800;line-height:1.05;color:var(--c-lime);font-variant-numeric:tabular-nums;}
.data-cell span{display:block;margin-top:8px;font-size:14px;color:rgba(255,255,255,.76);line-height:1.7;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;}
.faq-item:hover{border-color:rgba(240,84,30,.3);box-shadow:var(--shadow-s);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:12px 20px;background:transparent;border:0;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--c-ink);cursor:pointer;
}
.faq-q .chev{
  flex:0 0 26px;width:26px;height:26px;border-radius:8px;background:var(--c-primary-soft);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-weight:800;
  transition:transform .25s ease,background .25s ease;
}
.faq-item.open .faq-q .chev{transform:rotate(45deg);background:var(--c-primary);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 20px 20px;color:var(--c-muted);font-size:15.5px;line-height:1.85;border-top:1px dashed var(--c-line);padding-top:16px;}
.faq-item.open .faq-a{max-height:420px;}

/* ---------- CTA ---------- */
.cta-panel{
  background:linear-gradient(120deg,var(--c-primary) 0%,var(--c-primary-strong) 100%);
  border-radius:var(--radius-lg);color:#fff;padding:34px 26px;position:relative;overflow:hidden;
  box-shadow:var(--shadow-h);
}
.cta-panel::after{
  content:"";position:absolute;right:-40px;top:-40px;width:200px;height:200px;
  background:repeating-linear-gradient(45deg,rgba(255,255,255,.14) 0 12px,transparent 12px 24px);
  border-radius:50%;
}
.cta-panel h2{color:#fff;font-size:clamp(22px,2.8vw,30px);line-height:1.3;font-weight:800;position:relative;z-index:2;}
.cta-panel p{margin-top:12px;color:rgba(255,255,255,.9);font-size:15.5px;max-width:640px;position:relative;z-index:2;}
.cta-actions{margin-top:22px;display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:2;}
.cta-actions .btn-ghost{background:#fff;border-color:#fff;color:var(--c-primary-strong);}
.cta-actions .btn-ghost:hover{background:var(--c-primary-soft);border-color:#fff;color:var(--c-primary-strong);}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:#fff;margin-top:12px;padding:52px 0 0;}
.footer-grid{display:grid;gap:30px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;color:#fff;}
.footer-about{margin-top:14px;font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.7);max-width:340px;}
.site-footer h4{font-size:14px;letter-spacing:.1em;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-links{display:grid;gap:11px;}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.72);transition:color .2s ease,transform .2s ease;display:inline-block;}
.footer-links a:hover{color:var(--c-primary);transform:translateX(2px);}
.footer-bottom{
  margin-top:44px;border-top:1px solid var(--c-line-dark);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55);
}
@media (max-width:767px){
  .hero-actions .btn{width:100%;}
  .cta-actions .btn{width:100%;}
}