/* roulang page: index */
:root{
  --brand:#FF6A1F;
  --brand-dark:#E2540C;
  --brand-soft:#FFF1E8;
  --ink:#17191C;
  --ink-2:#5A6069;
  --ink-3:#8A9099;
  --mint:#17BF9C;
  --warn:#D94A3D;
  --bg:#FAF7F2;
  --card:#FFFFFF;
  --line:#ECE7E0;
  --line-2:#E3DCD2;
  --r-card:14px;
  --r-lg:20px;
  --r-btn:10px;
  --sh1:0 1px 2px rgba(23,25,28,.06);
  --sh2:0 8px 24px -12px rgba(23,25,28,.12);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
input,select,textarea{outline:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
body.no-scroll{overflow:hidden}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:80px 0}
.section--tight{padding:64px 0}
.section--dark{background:var(--ink);color:#fff}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-title{position:relative;font-size:28px;line-height:1.35;font-weight:700;letter-spacing:.2px;padding-left:16px}
.section-title::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:3px;background:var(--brand)}
.section-sub{margin-top:10px;font-size:15px;color:var(--ink-2);max-width:640px}
.section-head .section-title{margin-bottom:0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.4px;color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:5px 14px}

/* 点阵纹样 */
.dot-grid{display:grid;grid-template-columns:repeat(3,4px);grid-auto-rows:4px;gap:4px;flex:none}
.dot-grid i{width:4px;height:4px;border-radius:50%;background:var(--brand);display:block}
.dot-grid--sm{grid-template-columns:repeat(3,3px);grid-auto-rows:3px;gap:3px}
.dot-grid--sm i{width:3px;height:3px}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;transition:all .18s ease;white-space:nowrap}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh1)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:#fff;border-color:var(--line-2);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn[disabled],.btn.is-disabled{background:#E8E2DA;color:#A8A29A;border-color:transparent;pointer-events:none;box-shadow:none}
.btn-block{width:100%}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink);transition:color .18s ease}
.link-arrow .arw{transition:transform .18s ease}
.link-arrow:hover{color:var(--brand)}
.link-arrow:hover .arw{transform:translateX(3px)}
.link-arrow:focus-visible{text-decoration:underline}

/* 徽章 */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;font-size:12.5px;font-weight:600;background:var(--brand-soft);color:var(--brand)}
.badge--mint{background:rgba(23,191,156,.12);color:#0E8C72}
.badge--gray{background:#F1EDE7;color:var(--ink-2)}

/* Header */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:var(--sh1)}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{display:grid;grid-template-columns:repeat(3,4px);grid-auto-rows:4px;gap:4px}
.logo-mark i{width:4px;height:4px;border-radius:50%;background:var(--brand);display:block}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.4px;color:var(--ink)}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-link{position:relative;padding:8px 12px;border-radius:8px;font-size:15px;font-weight:500;color:var(--ink);transition:color .18s ease,background .18s ease}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.is-active{color:var(--ink)}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:-1px;height:2px;border-radius:2px;background:var(--brand)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.cmd-search{position:relative;display:flex;align-items:center;gap:8px;width:300px;height:40px;padding:0 10px 0 12px;background:#fff;border:1px solid var(--line-2);border-radius:var(--r-btn);transition:border-color .18s ease,box-shadow .18s ease}
.cmd-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 2px rgba(255,106,31,.18)}
.cmd-search svg{flex:none;color:var(--ink-3)}
.cmd-search input{flex:1;min-width:0;border:0;background:transparent;font-size:14px}
.cmd-search input::placeholder{color:var(--ink-3)}
.kbd{flex:none;font-size:11px;font-weight:600;color:var(--ink-3);border:1px solid var(--line);background:var(--bg);border-radius:6px;padding:2px 6px;line-height:1.2}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--line-2);border-radius:var(--r-btn);background:#fff;color:var(--ink-2);transition:all .18s ease}
.icon-btn:hover{border-color:var(--brand);color:var(--brand)}
.burger{display:none;width:40px;height:40px;border:1px solid var(--line-2);border-radius:var(--r-btn);background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(23,25,28,.45);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:80}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{position:fixed;top:0;right:0;bottom:0;width:320px;max-width:88vw;background:#fff;z-index:90;transform:translateX(102%);transition:transform .28s ease;padding:20px;display:flex;flex-direction:column;gap:8px;overflow-y:auto}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line-2);display:flex;align-items:center;justify-content:center;font-size:18px;color:var(--ink-2)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{padding:12px 14px;border-radius:10px;font-size:16px;font-weight:500;color:var(--ink)}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--brand-soft);color:var(--brand)}
.drawer .btn{margin-top:16px}

/* Hero */
.hero{position:relative;background-image:linear-gradient(100deg,rgba(250,247,242,.94) 0%,rgba(250,247,242,.86) 48%,rgba(250,247,242,.7) 100%),url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;border-bottom:1px solid var(--line)}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:76px 0 84px}
.hero h1{margin:18px 0 18px;font-size:46px;line-height:1.24;font-weight:700;letter-spacing:-.5px}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{font-size:17px;line-height:1.85;color:var(--ink-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-trust{display:flex;align-items:center;gap:10px;margin-top:22px;font-size:14px;color:var(--ink-3)}
.pulse{position:relative;width:8px;height:8px;border-radius:50%;background:var(--mint);flex:none}
.pulse::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:1px solid rgba(23,191,156,.5)}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh2)}
.hero-card{position:absolute;left:-22px;bottom:-22px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:16px 18px;box-shadow:var(--sh2);display:flex;align-items:center;gap:14px;max-width:280px}
.hero-card strong{display:block;font-size:15px;font-weight:600}
.hero-card span{font-size:13px;color:var(--ink-3)}

/* 痛点区 */
.pain-wrap{max-width:880px}
.pain-list{margin-top:28px;border-top:1px solid var(--line)}
.pain-item{display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}
.pain-item::before{content:"";width:3px;border-radius:3px;background:var(--brand);flex:none}
.pain-body{flex:1}
.pain-q{font-size:17px;font-weight:600;line-height:1.6}
.pain-note{margin-top:6px;font-size:14px;color:var(--ink-3)}
.pain-body .link-arrow{margin-top:10px;font-size:14px}

/* 方案卡片 */
.plan-grid{display:grid;grid-template-columns:1.12fr 1fr;grid-template-rows:auto auto;gap:24px}
.plan-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:#FFD3B8}
.plan-card--main{grid-row:1 / span 2;justify-content:space-between;padding:30px}
.plan-card--main .plan-title{font-size:24px;margin-top:22px}
.plan-card--main .plan-desc{font-size:15.5px;color:var(--ink-2);margin-top:12px;max-width:440px}
.plan-card--main img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px;margin-top:24px}
.plan-title{font-size:19px;font-weight:600;line-height:1.5;margin-top:16px}
.plan-desc{margin-top:8px;font-size:14.5px;line-height:1.75;color:var(--ink-2)}
.plan-card .link-arrow{margin-top:auto;padding-top:18px}
.plan-icon{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;background:var(--brand-soft);color:var(--brand)}

/* 数据带 */
.stats-band{background:var(--ink);color:#fff;padding:56px 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat{padding:0 28px;border-left:1px solid rgba(255,255,255,.12)}
.stat:first-child{border-left:0;padding-left:0}
.stat-num{font-size:44px;line-height:1.1;font-weight:700;color:#FAF7F2;font-variant-numeric:tabular-nums;letter-spacing:-1px}
.stat-num i{font-style:normal;font-size:20px;font-weight:600;color:var(--brand);margin-left:4px}
.stat-label{margin-top:8px;font-size:14px;color:var(--ink-3)}
.stat-note{margin-top:4px;font-size:12.5px;color:#6E747C}
.stats-foot{margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--ink-3)}
.stats-foot .link-arrow{color:#FAF7F2}
.stats-foot .link-arrow:hover{color:var(--brand)}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:#FFD3B8}
.news-cover{display:block;overflow:hidden;aspect-ratio:16/9;background:var(--brand-soft)}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-cover img{transform:scale(1.03)}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.news-title{margin-top:12px;font-size:18px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-title a:hover{color:var(--brand)}
.news-summary{margin-top:10px;font-size:14px;line-height:1.7;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;padding-top:16px;font-size:14px;color:var(--ink-3);display:flex;align-items:center;gap:10px}
.news-meta .sep{width:1px;height:12px;background:var(--line-2)}
.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:64px 24px;background:#fff;border:1px dashed var(--line-2);border-radius:var(--r-lg);text-align:center}
.empty-state .empty-dots{display:grid;grid-template-columns:repeat(3,6px);grid-auto-rows:6px;gap:6px}
.empty-state .empty-dots i{width:6px;height:6px;border-radius:50%;background:var(--line-2);display:block}
.empty-state strong{font-size:16px;font-weight:600}
.empty-state p{font-size:14px;color:var(--ink-3)}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:.8fr 1.4fr;gap:56px;align-items:start}
.faq-aside p{margin-top:14px;font-size:15px;color:var(--ink-2)}
.faq-aside .link-arrow{margin-top:20px}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 0;min-height:60px;text-align:left;font-size:16.5px;font-weight:600;color:var(--ink);transition:color .18s ease}
.faq-q:hover{color:var(--brand)}
.faq-sign{position:relative;flex:none;width:18px;height:18px}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .2s ease}
.faq-sign::before{left:0;top:8px;width:18px;height:2px}
.faq-sign::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-sign::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease}
.faq-a-inner{max-width:720px;padding:0 0 22px;font-size:16px;line-height:1.8;color:var(--ink-2)}

/* 表单 + CTA */
.lead-layout{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}
.lead-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh2)}
.lead-copy h2{font-size:28px;line-height:1.4;font-weight:700;margin-top:16px}
.lead-copy p{margin-top:14px;font-size:15.5px;color:var(--ink-2)}
.lead-points{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.lead-points li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2)}
.lead-points li::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--brand);margin-top:9px;flex:none}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh1)}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-2);margin-bottom:8px}
.form-control{width:100%;height:44px;padding:0 14px;background:#fff;border:1px solid var(--line-2);border-radius:var(--r-btn);font-size:15px;transition:border-color .18s ease,box-shadow .18s ease}
textarea.form-control{height:96px;padding:12px 14px;resize:vertical;line-height:1.6}
.form-control:focus{border-color:var(--brand);box-shadow:0 0 0 2px rgba(255,106,31,.18)}
.form-control::placeholder{color:#B4AEA5}
.form-hint{margin-top:14px;font-size:14px;color:var(--ink-3);line-height:1.7}
.form-alert{margin-top:16px;display:none;align-items:center;gap:10px;padding:12px 14px;border-radius:var(--r-btn);background:rgba(23,191,156,.1);color:#0E8C72;font-size:14px;font-weight:600}
.form-alert.is-visible{display:flex}
.form-note{margin-top:16px;font-size:14px;color:var(--ink-3)}

/* 弹层 */
.modal-mask{position:fixed;inset:0;background:rgba(23,25,28,.5);display:flex;align-items:center;justify-content:center;padding:24px;opacity:0;visibility:hidden;transition:opacity .22s ease,visibility .22s ease;z-index:100}
.modal-mask.is-open{opacity:1;visibility:visible}
.modal{width:100%;max-width:520px;background:#fff;border-radius:var(--r-lg);padding:28px;box-shadow:0 24px 60px -24px rgba(23,25,28,.4);transform:translateY(10px) scale(.98);transition:transform .22s ease}
.modal-mask.is-open .modal{transform:translateY(0) scale(1)}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}
.modal-title{font-size:20px;font-weight:700}
.modal-sub{margin-top:8px;font-size:14px;color:var(--ink-2)}
.modal-close{width:34px;height:34px;border-radius:10px;border:1px solid var(--line-2);display:flex;align-items:center;justify-content:center;color:var(--ink-2);font-size:18px;flex:none}
.modal-close:hover{border-color:var(--brand);color:var(--brand)}
.modal .form-row{margin-top:16px;margin-bottom:0}

/* 页脚 */
.footer-cta{background-image:linear-gradient(rgba(23,25,28,.94),rgba(23,25,28,.94)),url('/assets/images/backpic/back-3.png');background-size:cover;background-position:center;color:#fff;padding:64px 0}
.footer-cta-inner{display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between}
.footer-cta h2{font-size:26px;font-weight:700;line-height:1.4}
.footer-cta p{margin-top:10px;font-size:15px;color:#B9BEC6;max-width:640px}
.footer-cta .link-arrow{color:#fff;font-size:16px}
.footer-cta .link-arrow:hover{color:var(--brand)}
.site-footer{background:var(--ink);color:#B9BEC6;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#8A9099;max-width:300px}
.footer-grid h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#B9BEC6;transition:color .18s ease}
.footer-links a:hover{color:var(--brand)}
.footer-divider{height:1px;background:rgba(255,255,255,.1)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;padding:20px 0 26px;font-size:13px;color:#8A9099}
.footer-bottom a:hover{color:var(--brand)}

/* 响应式 */
@media (max-width:1180px){
  .cmd-search{width:220px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .main-nav,.cmd-search,.header-actions .icon-btn,.header-actions .btn-primary{display:none}
  .burger{display:flex}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:56px 0 64px}
  .hero h1{font-size:36px}
  .hero-card{position:static;margin-top:16px;max-width:none}
  .plan-grid{grid-template-columns:1fr}
  .plan-card--main{grid-row:auto}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:32px 0}
  .stat:nth-child(3){border-left:0;padding-left:0}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .lead-layout{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:639px){
  .container{padding:0 20px}
  .section{padding:48px 0}
  .hero h1{font-size:29px;letter-spacing:0}
  .hero-sub{font-size:16px}
  .section-title{font-size:22px}
  .news-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr;gap:28px 0}
  .stat{padding:0 16px}
  .stat-num{font-size:36px}
  .plan-card,.plan-card--main{padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .modal-mask{align-items:flex-end;padding:0}
  .modal{max-width:none;border-radius:20px 20px 0 0;padding:24px 20px 28px;transform:translateY(24px)}
  .hero-actions .btn{width:100%}
  .footer-cta-inner{flex-direction:column;align-items:flex-start}
}

/* roulang page: article */
:root{
  --brand:#FF6A1F;
  --brand-dark:#E2540C;
  --brand-light:#FFF1E8;
  --graphite:#17191C;
  --ink:#2A2D31;
  --gray-700:#5A6069;
  --gray-400:#8A9099;
  --bg:#FAF7F2;
  --card:#FFFFFF;
  --line:#ECE7E0;
  --line-2:#E3DCD2;
  --mint:#17BF9C;
  --warn:#D94A3D;
  --r-card:14px;
  --r-lg:20px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(23,25,28,.06);
  --sh-2:0 8px 24px -12px rgba(23,25,28,.12);
  --gap-sec:80px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--graphite);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.container{max-width:1200px;margin:0 auto;padding:0 32px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{height:68px;display:flex;align-items:center;gap:20px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;letter-spacing:.2px;flex:0 0 auto}
.logo-mark{display:grid;grid-template-columns:repeat(3,4px);grid-template-rows:repeat(3,4px);gap:3px}
.logo-mark i{display:block;width:4px;height:4px;border-radius:1px;background:var(--brand)}
.logo-mark i:nth-child(1),.logo-mark i:nth-child(5),.logo-mark i:nth-child(9){background:var(--graphite)}
.logo-text{white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-link{position:relative;padding:8px 12px;font-size:15px;font-weight:500;color:var(--graphite);border-radius:8px;transition:color .18s,background .18s}
.nav-link:hover{color:var(--brand);background:var(--brand-light)}
.nav-link.is-active{color:var(--graphite)}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;background:var(--brand)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.cmd-search{
  display:flex;align-items:center;gap:8px;
  width:300px;height:40px;padding:0 12px;
  background:#fff;border:1px solid var(--line-2);border-radius:var(--r-btn);
  color:var(--gray-400);transition:border-color .18s,box-shadow .18s;
}
.cmd-search input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:14px;color:var(--graphite)}
.cmd-search input::placeholder{color:var(--gray-400)}
.cmd-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 2px rgba(255,106,31,.18)}
.kbd{font-size:12px;line-height:1;padding:4px 6px;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--gray-400)}
.icon-btn{
  width:40px;height:40px;display:grid;place-items:center;
  border:1px solid var(--line-2);border-radius:var(--r-btn);background:#fff;
  color:var(--gray-700);transition:border-color .18s,color .18s,box-shadow .18s;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);box-shadow:var(--sh-1)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border:1px solid transparent;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background .18s,border-color .18s,color .18s,transform .18s,box-shadow .18s;
}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);border-color:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:#fff;border-color:var(--line-2);color:var(--graphite)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn:disabled{background:#E8E2DA;border-color:#E8E2DA;color:#A8A29A;pointer-events:none}
.burger{
  display:none;width:40px;height:40px;border:1px solid var(--line-2);border-radius:var(--r-btn);
  background:#fff;padding:0;place-items:center;
}
.burger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--graphite);margin:3px auto;transition:transform .2s,opacity .2s}

/* 移动端抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(23,25,28,.5);opacity:0;visibility:hidden;transition:.22s;z-index:90}
.drawer-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;background:#fff;z-index:95;
  transform:translateX(100%);transition:transform .26s cubic-bezier(.4,0,.2,1);
  display:flex;flex-direction:column;padding:20px;gap:6px;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer-close{width:36px;height:36px;border:1px solid var(--line-2);border-radius:9px;background:#fff;display:grid;place-items:center;color:var(--gray-700)}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:14px}
.drawer-nav a{padding:12px 10px;border-radius:10px;font-size:15px;font-weight:500}
.drawer-nav a:hover{background:var(--brand-light);color:var(--brand)}
.drawer-nav a.is-active{background:var(--brand-light);color:var(--brand)}
.drawer-cta{margin-top:auto;display:flex;flex-direction:column;gap:10px}

/* ---------- 文章头部 ---------- */
.article-hero{padding:28px 0 4px;background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%)}
.breadcrumb{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--gray-400);margin-bottom:16px}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li:not(:last-child)::after{content:"/";color:var(--line-2)}
.breadcrumb a{color:var(--gray-400);transition:color .18s}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb li[aria-current]{color:var(--brand);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{font-size:34px;line-height:1.42;font-weight:700;letter-spacing:-.2px;max-width:880px}
.article-meta{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:18px;font-size:14px;color:var(--gray-400)}
.article-meta li{display:inline-flex;align-items:center;gap:14px}
.article-meta li:not(:last-child)::after{content:"";width:1px;height:14px;background:var(--line-2)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--brand-light);color:var(--brand);font-size:12.5px;font-weight:500;line-height:1;
}
.badge-mint{background:rgba(23,191,156,.12);color:#0E8C72}
.badge-gray{background:#F1EDE7;color:var(--gray-700)}

/* ---------- 正文布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:48px;align-items:start;
  padding:36px 0 var(--gap-sec);
}
.article-main{max-width:740px;width:100%;margin-inline:auto}
.article-body{font-size:17px;line-height:1.9;color:var(--ink)}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;font-size:24px;line-height:1.45;font-weight:600;color:var(--graphite);
  margin:2em 0 .7em;padding-left:12px;scroll-margin-top:96px;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.3em;width:3px;height:1em;border-radius:2px;background:var(--brand)}
.article-body h3{font-size:19px;line-height:1.55;font-weight:600;color:var(--graphite);margin:1.6em 0 .6em;scroll-margin-top:96px}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0;list-style:none}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:.5em}
.article-body ul li::before{content:"";position:absolute;left:0;top:.74em;width:7px;height:7px;border-radius:2px;background:var(--brand)}
.article-body ol{counter-reset:artnum}
.article-body ol li{position:relative;padding-left:28px;margin-bottom:.55em;counter-increment:artnum}
.article-body ol li::before{
  content:counter(artnum);position:absolute;left:0;top:.32em;width:20px;height:20px;border-radius:6px;
  background:var(--brand-light);color:var(--brand);font-size:12px;font-weight:600;display:grid;place-items:center;line-height:1;
}
.article-body blockquote{
  margin:1.4em 0;padding:16px 20px;background:var(--brand-light);
  border-left:3px solid var(--brand);border-radius:0 10px 10px 0;color:#3A3D42;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-lg);margin:1.4em 0;height:auto}
.article-body figure{margin:1.4em 0}
.article-body figure img{margin:0 0 10px}
.article-body figcaption{font-size:13px;color:var(--gray-400);text-align:center}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(255,106,31,.35);transition:border-color .18s}
.article-body a:hover{border-color:var(--brand)}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px}
.article-body th,.article-body td{padding:10px 14px;border:1px solid var(--line);text-align:left;vertical-align:top}
.article-body th{background:var(--brand-light);color:var(--brand-dark);font-weight:600}
.article-body tbody tr:nth-child(even){background:var(--bg)}
.article-body hr{border:0;height:1px;background:var(--line);margin:2em 0}
.article-body strong{font-weight:600}

/* 目录 */
.article-toc{display:none}
.toc-card{position:sticky;top:88px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1)}
.toc-title{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--gray-400);letter-spacing:.4px;margin-bottom:12px}
.toc-title::before{content:"";width:3px;height:12px;border-radius:2px;background:var(--brand)}
.toc-list{list-style:none;display:flex;flex-direction:column;gap:2px;max-height:60vh;overflow:auto}
.toc-list a{
  display:block;padding:7px 10px;font-size:14px;line-height:1.5;color:var(--gray-700);
  border-left:2px solid transparent;border-radius:0 8px 8px 0;transition:.18s;
}
.toc-list a:hover{color:var(--brand);background:var(--brand-light)}
.toc-list a.is-current{color:var(--brand);border-left-color:var(--brand);background:var(--brand-light)}

/* 空态 */
.empty-state{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:56px 28px;text-align:center;box-shadow:var(--sh-1);
}
.dot-grid{display:grid;grid-template-columns:repeat(3,8px);grid-template-rows:repeat(3,8px);gap:6px;justify-content:center;margin-bottom:18px}
.dot-grid i{display:block;width:8px;height:8px;border-radius:2px;background:var(--line-2)}
.dot-grid i:nth-child(1),.dot-grid i:nth-child(5),.dot-grid i:nth-child(9){background:var(--brand)}
.empty-state h2{font-size:20px;font-weight:600;margin-bottom:8px}
.empty-state p{font-size:14px;color:var(--gray-400);margin-bottom:20px}

/* 相关推荐 */
.related{padding-top:8px;margin-top:8px;border-top:1px solid var(--line)}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;padding:32px 0 20px}
.related-head h2{position:relative;font-size:22px;font-weight:600;padding-left:12px}
.related-head h2::before{content:"";position:absolute;left:0;top:.28em;width:3px;height:.9em;border-radius:2px;background:var(--brand)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:var(--graphite);transition:color .18s}
.link-arrow span{transition:transform .18s}
.link-arrow:hover{color:var(--brand)}
.link-arrow:hover span{transform:translateX(3px)}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rel-card{
  display:flex;flex-direction:column;gap:12px;padding:18px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .2s,border-color .2s,box-shadow .2s;
}
.rel-card:hover{transform:translateY(-2px);border-color:#FFD8BE;box-shadow:var(--sh-2)}
.rel-thumb{position:relative;overflow:hidden;border-radius:12px;aspect-ratio:16/9;background:var(--brand-light)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.rel-card:hover .rel-thumb img{transform:scale(1.03)}
.rel-card h3{font-size:17px;line-height:1.55;font-weight:600}
.rel-card p{font-size:14px;line-height:1.7;color:var(--gray-700)}

.back-row{display:flex;flex-wrap:wrap;gap:24px;padding-top:28px;margin-top:28px;border-top:1px solid var(--line)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--graphite);color:#fff;margin-top:var(--gap-sec);padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.site-footer h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.site-footer .logo-text{color:#fff}
.site-footer .logo-mark i:nth-child(1),
.site-footer .logo-mark i:nth-child(5),
.site-footer .logo-mark i:nth-child(9){background:#fff}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#B9BDC4;transition:color .18s}
.footer-links a:hover{color:var(--brand)}
.footer-brand p{font-size:14px;line-height:1.85;color:#8A9099;margin-top:16px;max-width:330px}
.footer-divider{height:1px;background:rgba(255,255,255,.12);margin:40px 0 20px}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:12.5px;color:#8A9099;line-height:1.7}

/* ---------- 响应式 ---------- */
@media (min-width:1280px){
  .article-layout{grid-template-columns:minmax(0,740px) 240px;justify-content:center;gap:56px}
  .article-toc.is-visible{display:block}
}
@media (max-width:1023px){
  .cmd-search{width:220px}
  .main-nav{display:none}
  .icon-btn{display:none}
  .burger{display:grid}
  .header-actions .btn-primary{display:none}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--gap-sec:48px}
  .container{padding:0 20px}
  .header-inner{height:56px;gap:12px}
  .article-hero{padding:20px 0 0}
  .article-title{font-size:28px}
  .article-body{font-size:16.5px}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .related-head{flex-direction:column;align-items:flex-start;gap:10px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
}
@media (max-width:520px){
  .article-title{font-size:25px}
  .article-meta{gap:10px;font-size:13.5px}
  .article-meta li{gap:10px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .empty-state{padding:40px 20px}
}

/* roulang page: category1 */
:root{
  --brand:#FF6A1F;
  --brand-dark:#E2540C;
  --brand-soft:#FFF1E8;
  --ink:#17191C;
  --ink-2:#5A6069;
  --ink-3:#8A9099;
  --mint:#17BF9C;
  --warn:#D94A3D;
  --bg:#FAF7F2;
  --card:#FFFFFF;
  --line:#ECE7E0;
  --line-2:#E3DCD2;
  --r-card:14px;
  --r-block:20px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(23,25,28,.06);
  --sh-2:0 8px 24px -12px rgba(23,25,28,.12);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 32px}
.no-scroll{overflow:hidden}

/* ---------- 按钮 / 文字链 / 徽章 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:#fff;border-color:var(--line-2);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn-ghost:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{background:#E8E2DA;color:#A8A29A;border-color:#E8E2DA;pointer-events:none;box-shadow:none}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink);transition:color .18s ease}
.text-link .arw{display:inline-block;transition:transform .18s ease}
.text-link:hover{color:var(--brand)}
.text-link:hover .arw{transform:translateX(3px)}
.text-link:focus-visible{text-decoration:underline}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;line-height:1}
.badge-mint{background:rgba(23,191,156,.12);color:#0E8E74}
.badge-gray{background:#F2EFE9;color:var(--ink-2)}

/* ---------- 顶栏 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);gap:3px;width:22px;height:22px}
.logo-mark i{display:block;border-radius:50%;background:var(--brand)}
.logo-mark i:nth-child(2),.logo-mark i:nth-child(6),.logo-mark i:nth-child(8){background:var(--ink)}
.logo-text{font-size:17px;font-weight:700;letter-spacing:.2px}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:8px}
.nav-link{position:relative;padding:8px 12px;border-radius:8px;font-size:15px;font-weight:500;color:var(--ink);transition:color .18s ease,background-color .18s ease}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;background:var(--brand)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.cmd-search{
  display:flex;align-items:center;gap:8px;width:280px;height:40px;padding:0 10px;
  border:1px solid var(--line-2);border-radius:var(--r-btn);background:#fff;color:var(--ink-3);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.cmd-search svg{flex:none}
.cmd-search input{flex:1;min-width:0;border:0;outline:none;background:transparent;font-size:14px;color:var(--ink)}
.cmd-search input::placeholder{color:var(--ink-3)}
.cmd-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 2px rgba(255,106,31,.18)}
.kbd{flex:none;font-size:11px;line-height:1;color:var(--ink-3);background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:4px 6px}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--line-2);border-radius:var(--r-btn);background:#fff;color:var(--ink-2);transition:border-color .18s ease,color .18s ease,background-color .18s ease}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
.burger{display:none;width:40px;height:40px;border:1px solid var(--line-2);border-radius:var(--r-btn);background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:4px}
.burger span{display:block;width:16px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease,opacity .2s ease}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 抽屉 */
.overlay{position:fixed;inset:0;background:rgba(23,25,28,.5);opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:80}
.overlay.is-open{opacity:1;pointer-events:auto}
.drawer{position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;background:#fff;z-index:90;transform:translateX(100%);transition:transform .28s ease;display:flex;flex-direction:column;padding:20px;overflow-y:auto;box-shadow:var(--sh-2)}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer nav{display:flex;flex-direction:column;gap:2px;padding:16px 0}
.drawer nav a{padding:12px;border-radius:10px;font-size:15px;font-weight:500;transition:background-color .18s ease,color .18s ease}
.drawer nav a:hover{background:var(--brand-soft);color:var(--brand)}
.drawer nav a.is-active{color:var(--brand);background:var(--brand-soft)}
.drawer .btn{width:100%;margin-top:auto}

/* ---------- 页头 ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--line-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .current{color:var(--brand);font-weight:600}
.page-head{padding:36px 0 0}
.page-head h1{margin-top:16px;font-size:clamp(28px,4vw,46px);line-height:1.18;font-weight:700;letter-spacing:-.5px;max-width:900px}
.page-head .lead{margin-top:14px;font-size:clamp(17px,1.8vw,20px);line-height:1.6;color:var(--ink-2);max-width:760px}
.head-rule{margin-top:24px;padding-top:16px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between}
.head-rule .hint{font-size:14px;color:var(--ink-3)}

/* ---------- 板块通用 ---------- */
.section{padding:80px 0 0}
.section:last-of-type{padding-bottom:80px}
.section-head{display:flex;flex-wrap:wrap;gap:14px;align-items:flex-end;justify-content:space-between;margin-bottom:24px}
.section-head h2{position:relative;padding-left:14px;font-size:clamp(22px,2.6vw,30px);line-height:1.3;font-weight:700}
.section-head h2::before{content:"";position:absolute;left:0;top:.28em;width:4px;height:1em;border-radius:2px;background:var(--brand)}
.section-head .sub{margin-top:8px;font-size:14px;color:var(--ink-3);padding-left:14px}

/* ---------- 主体：侧栏 + 卡片网格 ---------- */
.layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:32px;align-items:start}
.side-nav{position:sticky;top:88px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:16px;box-shadow:var(--sh-1)}
.side-nav h2{padding:6px 8px 12px;font-size:14px;font-weight:600;color:var(--ink-3);letter-spacing:.4px}
.side-nav a{position:relative;display:block;padding:11px 12px;border-radius:10px;font-size:15px;font-weight:500;color:var(--ink-2);transition:background-color .18s ease,color .18s ease}
.side-nav a::before{content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;border-radius:2px;background:transparent;transition:background-color .18s ease}
.side-nav a:hover{background:var(--bg);color:var(--brand)}
.side-nav a.is-current{background:var(--brand-soft);color:var(--brand);font-weight:600}
.side-nav a.is-current::before{background:var(--brand)}
.side-nav .side-foot{margin-top:14px;padding:14px 12px 4px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);line-height:1.7}

.entry-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:start}
.entry-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#FFD3B8}
.dot-icon{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);gap:3px;width:26px;height:26px;margin-bottom:16px}
.dot-icon i{display:block;border-radius:2px;background:var(--brand-soft)}
.dot-icon i:nth-child(1),.dot-icon i:nth-child(5),.dot-icon i:nth-child(9){background:var(--brand)}
.dot-icon i:nth-child(3),.dot-icon i:nth-child(7){background:var(--line-2)}
.entry-card h3{font-size:19px;line-height:1.45;font-weight:600}
.entry-card p{margin-top:10px;font-size:14px;line-height:1.75;color:var(--ink-2)}
.entry-card .chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.entry-card .card-link{margin-top:18px;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink)}
.entry-card .card-link .arw{transition:transform .18s ease}
.entry-card:hover .card-link{color:var(--brand)}
.entry-card:hover .card-link .arw{transform:translateX(3px)}

/* ---------- 深色数据带 ---------- */
.dark-band{margin-top:80px;background:var(--ink);color:#fff}
.dark-band .inner{padding:56px 0}
.band-head{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:flex-end;margin-bottom:32px}
.band-head h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.3}
.band-head p{font-size:14px;color:var(--ink-3);max-width:520px}
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border-top:1px solid rgba(255,255,255,.12);border-bottom:1px solid rgba(255,255,255,.12)}
.stat{padding:28px 24px 24px;border-left:1px solid rgba(255,255,255,.12)}
.stat:first-child{border-left:0;padding-left:0}
.stat .num{display:block;font-size:44px;line-height:1.1;font-weight:700;color:#FFF6EF;letter-spacing:-1px}
.stat .lbl{display:block;margin-top:8px;font-size:14px;color:var(--ink-3)}
.band-note{margin-top:18px;font-size:13px;color:var(--ink-3)}

/* ---------- 时间线 ---------- */
.timeline{max-width:760px;position:relative;padding-left:34px}
.timeline::before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:1px;background:var(--line)}
.step{position:relative;padding-bottom:30px}
.step:last-child{padding-bottom:0}
.step::before{content:"";position:absolute;left:-34px;top:6px;width:19px;height:19px;border-radius:50%;background:var(--brand);border:4px solid var(--bg)}
.step h3{font-size:19px;font-weight:600}
.step p{margin-top:8px;font-size:15px;color:var(--ink-2)}
.step .tip{margin-top:12px;padding:12px 16px;border-radius:10px;background:var(--brand-soft);font-size:14px;color:#8A4A1E}

/* ---------- 图文分栏 ---------- */
.split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:40px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-block);padding:28px;box-shadow:var(--sh-1)}
.split-media{border-radius:var(--r-card);overflow:hidden}
.split-media img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease}
.split:hover .split-media img{transform:scale(1.03)}
.split-list{display:flex;flex-direction:column;gap:18px;margin-top:20px}
.split-list li{display:flex;gap:14px;align-items:flex-start}
.split-list .idx{flex:none;width:26px;height:26px;border-radius:8px;background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center}
.split-list h3{font-size:16px;font-weight:600}
.split-list p{margin-top:4px;font-size:14px;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:minmax(0,300px) minmax(0,1fr);gap:40px;align-items:start}
.faq-aside h2{position:relative;padding-left:14px;font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.3}
.faq-aside h2::before{content:"";position:absolute;left:0;top:.28em;width:4px;height:1em;border-radius:2px;background:var(--brand)}
.faq-aside p{margin-top:14px;font-size:14px;color:var(--ink-3)}
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.faq-item+.faq-item{border-top:1px solid var(--line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;min-height:60px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);transition:background-color .18s ease,color .18s ease}
.faq-q:hover{color:var(--brand);background:#FFFCF9}
.faq-plus{flex:none;position:relative;width:16px;height:16px}
.faq-plus::before,.faq-plus::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.faq-plus::before{left:0;top:7px;width:16px;height:2px}
.faq-plus::after{top:0;left:7px;width:2px;height:16px}
.faq-item.is-open .faq-plus::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease}
.faq-a-inner{padding:0 22px 20px;max-width:720px;font-size:16px;line-height:1.8;color:var(--ink-2)}

/* ---------- CTA ---------- */
.cta-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-block);padding:40px;box-shadow:var(--sh-1);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,340px);gap:32px;align-items:center}
.cta-card h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3}
.cta-card p{margin-top:14px;font-size:15px;color:var(--ink-2);max-width:560px}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.cta-actions .btn{width:100%}
.privacy{margin-top:16px;font-size:14px;color:var(--ink-3);line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#fff;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding:56px 0 40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--ink-3);max-width:320px}
.site-footer h3{margin-bottom:16px;font-size:15px;font-weight:600;color:#fff}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--ink-3);transition:color .18s ease}
.footer-links a:hover{color:var(--brand)}
.footer-divider{height:1px;background:rgba(255,255,255,.12)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;padding:20px 0 28px;font-size:13px;color:var(--ink-3)}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .cmd-search{width:220px}
}
@media (max-width:1023px){
  .main-nav{display:none}
  .cmd-search{display:none}
  .icon-btn{display:none}
  .burger{display:flex}
  .header-actions{gap:10px}
  .layout{grid-template-columns:minmax(0,1fr);gap:24px}
  .side-nav{position:static;padding:12px}
  .side-nav h2{padding:4px 8px 10px}
  .side-nav .side-scroll{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;-webkit-overflow-scrolling:touch}
  .side-nav .side-scroll a{white-space:nowrap;padding:9px 14px;border-radius:999px;background:var(--bg)}
  .side-nav a::before{display:none}
  .side-nav a.is-current{background:var(--brand-soft)}
  .side-nav .side-foot{display:none}
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat{padding:24px}
  .stat:nth-child(odd){border-left:0;padding-left:0}
  .stat:nth-child(n+3){border-top:1px solid rgba(255,255,255,.12)}
  .split{grid-template-columns:minmax(0,1fr);gap:24px}
  .faq-grid{grid-template-columns:minmax(0,1fr);gap:24px}
  .cta-card{grid-template-columns:minmax(0,1fr);padding:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:44px 0 32px}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .header-inner{height:56px;gap:12px}
  .section{padding-top:48px}
  .section:last-of-type{padding-bottom:48px}
  .page-head{padding-top:24px}
  .entry-grid{grid-template-columns:minmax(0,1fr);gap:16px}
  .dark-band{margin-top:48px}
  .dark-band .inner{padding:40px 0}
  .stat .num{font-size:36px}
  .timeline{padding-left:28px}
  .step::before{left:-28px;width:15px;height:15px;border-width:3px}
  .split{padding:20px}
  .cta-card{padding:22px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-bottom{flex-direction:column;gap:6px}
  .kbd{display:none}
}

/* roulang page: category2 */
:root{
  --brand:#FF6A1F;
  --brand-dark:#E2540C;
  --brand-soft:#FFF1E8;
  --ink:#17191C;
  --ink-2:#5A6069;
  --ink-3:#8A9099;
  --bg:#FAF7F2;
  --card:#FFFFFF;
  --line:#ECE7E0;
  --line-2:#E3DCD2;
  --mint:#17BF9C;
  --warn:#D94A3D;
  --r-card:14px;
  --r-lg:20px;
  --r-btn:10px;
  --sh1:0 1px 2px rgba(23,25,28,.06);
  --sh2:0 8px 24px -12px rgba(23,25,28,.12);
  --container:1200px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid rgba(255,106,31,.55);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;border:1px solid var(--brand);}
.btn-primary:hover{background:var(--brand-dark);border-color:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--sh2);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line-2);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.btn-ghost:active{transform:translateY(1px);}
.btn:disabled{background:#E8E2DA;border-color:#E8E2DA;color:#A8A29A;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:500;color:var(--ink);
  transition:color .2s ease;
}
.link-arrow .arw{transition:transform .2s ease;display:inline-block;}
.link-arrow:hover{color:var(--brand);}
.link-arrow:hover .arw{transform:translateX(3px);}
.link-arrow:focus-visible{text-decoration:underline;}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:500;line-height:1.6;
  background:var(--brand-soft);color:var(--brand-dark);
}
.badge-mint{background:rgba(23,191,156,.12);color:#0E8C72;}
.badge-gray{background:#F2EEE8;color:var(--ink-2);}
.dot-live{width:7px;height:7px;border-radius:50%;background:var(--mint);display:inline-block;}

/* ---------- 九宫格点阵 ---------- */
.grid-dots{display:grid;grid-template-columns:repeat(3,1fr);gap:3px;width:18px;height:18px;}
.grid-dots i{background:var(--brand);border-radius:1px;opacity:.35;}
.grid-dots i:nth-child(1),.grid-dots i:nth-child(5),.grid-dots i:nth-child(9){opacity:1;}
.grid-dots.on-dark i{background:#fff;opacity:.3;}
.grid-dots.on-dark i:nth-child(1),.grid-dots.on-dark i:nth-child(5),.grid-dots.on-dark i:nth-child(9){opacity:.95;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh1);}
.header-inner{display:flex;align-items:center;gap:28px;height:68px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{display:grid;grid-template-columns:repeat(3,1fr);gap:2px;width:22px;height:22px;}
.logo-mark i{background:var(--brand);border-radius:2px;opacity:.32;}
.logo-mark i:nth-child(1),.logo-mark i:nth-child(5),.logo-mark i:nth-child(9){opacity:1;}
.logo-text{font-size:17px;font-weight:700;letter-spacing:.2px;color:var(--ink);}
.main-nav{display:flex;align-items:center;gap:4px;flex:1 1 auto;}
.nav-link{
  position:relative;padding:8px 12px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--ink);
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-1px;height:2px;
  background:var(--brand);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.cmd-search{
  display:flex;align-items:center;gap:8px;
  width:280px;height:40px;padding:0 12px;
  background:#F7F4EF;border:1px solid var(--line-2);border-radius:var(--r-btn);
  color:var(--ink-3);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.cmd-search:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 2px rgba(255,106,31,.18);}
.cmd-search input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink);
}
.cmd-search input::placeholder{color:var(--ink-3);}
.kbd{
  font-size:11px;font-weight:600;color:var(--ink-3);
  padding:2px 6px;border:1px solid var(--line-2);border-radius:6px;background:#fff;
}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--line-2);background:#fff;color:var(--ink-2);
  transition:color .2s ease,border-color .2s ease,background .2s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft);}
.burger{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--line-2);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.burger span{display:block;width:16px;height:1.6px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .2s ease;}
.burger.is-open span:nth-child(1){transform:translateY(5.6px) rotate(45deg);}
.burger.is-open span:nth-child(2){opacity:0;}
.burger.is-open span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg);}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(23,25,28,.5);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;width:320px;max-width:86vw;height:100%;
  background:#fff;z-index:90;padding:24px 22px;
  transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;gap:6px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line-2);color:var(--ink-2);display:flex;align-items:center;justify-content:center;font-size:18px;line-height:1;}
.drawer-close:hover{color:var(--brand);border-color:var(--brand);}
.drawer .nav-link{padding:12px;font-size:16px;border-radius:10px;}
.drawer .btn{margin-top:16px;width:100%;}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-head::before{content:"";position:absolute;inset:0;background:rgba(250,247,242,.9);}
.page-head .container{position:relative;padding-top:44px;padding-bottom:40px;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-3);flex-wrap:wrap;}
.crumbs li{display:inline-flex;align-items:center;gap:8px;}
.crumbs li+li::before{content:"/";color:var(--line-2);}
.crumbs a:hover{color:var(--brand);}
.crumbs .current{color:var(--brand);font-weight:500;}
.page-head h1{
  font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.4px;
  margin:18px 0 0;max-width:760px;
}
.page-head .lead{
  margin-top:14px;font-size:18px;line-height:1.7;color:var(--ink-2);max-width:720px;
}
.head-rule{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  margin-top:26px;padding-top:18px;border-top:1px solid var(--line-2);
  flex-wrap:wrap;
}
.head-rule .meta{font-size:14px;color:var(--ink-3);display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.head-rule .meta .sep{width:1px;height:12px;background:var(--line-2);}

/* ---------- 板块 ---------- */
.section{padding:80px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap;}
.section-title{display:flex;align-items:flex-start;gap:12px;}
.section-title::before{content:"";width:4px;height:26px;border-radius:2px;background:var(--brand);margin-top:6px;flex:0 0 auto;}
.section-title h2{font-size:28px;line-height:1.35;font-weight:700;letter-spacing:-.2px;}
.section-title p{font-size:15px;color:var(--ink-2);margin-top:4px;}

/* ---------- 时间轴 ---------- */
.timeline-wrap{display:flex;justify-content:center;}
.timeline{position:relative;width:100%;max-width:760px;}
.timeline::before{
  content:"";position:absolute;left:17px;top:12px;bottom:12px;width:1px;background:var(--line);
}
.tl-item{position:relative;padding:0 0 32px 56px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;left:0;top:2px;
  width:35px;height:35px;border-radius:50%;
  background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;
  box-shadow:0 0 0 6px var(--bg);
}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--sh1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:#F7D6C1;}
.tl-card h3{font-size:20px;line-height:1.4;font-weight:600;}
.tl-card p{margin-top:8px;font-size:16px;line-height:1.8;color:var(--ink-2);}
.tl-tip{
  margin-top:14px;padding:12px 14px;border-radius:10px;
  background:var(--brand-soft);border-left:3px solid var(--brand);
  font-size:14px;line-height:1.7;color:#7A3E1B;
  display:flex;gap:8px;align-items:flex-start;
}
.tl-tip .badge{flex:0 0 auto;margin-top:1px;}

/* ---------- 卡片网格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;gap:12px;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:#F7D6C1;}
.card h3{font-size:18px;font-weight:600;line-height:1.5;}
.card p{font-size:15px;line-height:1.75;color:var(--ink-2);}
.card-top{display:flex;align-items:center;gap:10px;}
.card-figure{
  border-radius:12px;overflow:hidden;background:#F4F0EA;aspect-ratio:16/9;
}
.card-figure img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.card:hover .card-figure img{transform:scale(1.03);}

/* ---------- 提示条列表 ---------- */
.check-list{display:grid;gap:14px;}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:18px 20px;box-shadow:var(--sh1);
  transition:border-color .2s ease,transform .2s ease;
}
.check-item:hover{border-color:#F7D6C1;transform:translateY(-1px);}
.check-item .idx{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  background:var(--brand-soft);color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;
}
.check-item h3{font-size:16px;font-weight:600;}
.check-item p{margin-top:4px;font-size:14px;line-height:1.7;color:var(--ink-2);}

/* ---------- 深色数据带 ---------- */
.stat-band{background:var(--ink);color:#fff;padding:56px 0;}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat-item{padding:0 28px;border-left:1px solid rgba(255,255,255,.12);}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-num{font-size:44px;line-height:1.1;font-weight:700;color:#fff;letter-spacing:-1px;}
.stat-num small{font-size:18px;font-weight:600;margin-left:2px;color:var(--brand);}
.stat-label{margin-top:8px;font-size:14px;color:var(--ink-3);}
.stat-note{margin-top:22px;font-size:13px;color:#6C727B;}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:start;}
.faq-aside{position:sticky;top:96px;}
.faq-aside h2{font-size:28px;line-height:1.35;font-weight:700;letter-spacing:-.2px;}
.faq-aside p{margin-top:10px;font-size:15px;line-height:1.75;color:var(--ink-2);}
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh1);}
.faq-item+.faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:16px;font-weight:500;color:var(--ink);
  min-height:60px;transition:background .2s ease,color .2s ease;
}
.faq-q:hover{background:#FDFBF8;color:var(--brand);}
.faq-q .plus{
  flex:0 0 auto;width:22px;height:22px;position:relative;
  transition:transform .25s ease;
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-q .plus::before{left:0;top:10px;width:22px;height:2px;}
.faq-q .plus::after{top:0;left:10px;width:2px;height:22px;transition:opacity .2s ease;}
.faq-item.is-open .faq-q{color:var(--brand);}
.faq-item.is-open .faq-q .plus{transform:rotate(90deg);}
.faq-item.is-open .faq-q .plus::after{opacity:0;}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .2s ease;
}
.faq-a-inner{padding:0 22px 22px;max-width:720px;}
.faq-a-inner p{font-size:16px;line-height:1.8;color:var(--ink-2);}

/* ---------- 表单区 ---------- */
.cta-band{padding:80px 0;}
.cta-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh2);padding:32px;
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;
}
.cta-card h2{font-size:28px;line-height:1.35;font-weight:700;letter-spacing:-.2px;}
.cta-card .cta-desc{margin-top:12px;font-size:16px;line-height:1.8;color:var(--ink-2);}
.cta-points{margin-top:20px;display:grid;gap:10px;}
.cta-points li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2);}
.cta-points li::before{content:"";width:7px;height:7px;border-radius:2px;background:var(--brand);margin-top:8px;flex:0 0 auto;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:500;color:var(--ink-2);margin-bottom:7px;}
.field input,.field select,.field textarea{
  width:100%;height:44px;padding:0 13px;
  border:1px solid var(--line-2);border-radius:var(--r-btn);background:#fff;
  font-size:15px;color:var(--ink);outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:96px;padding:11px 13px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);box-shadow:0 0 0 2px rgba(255,106,31,.18);
}
.privacy-note{margin-top:14px;font-size:14px;line-height:1.7;color:var(--ink-3);}

/* ---------- 空态 ---------- */
.empty{
  text-align:center;padding:44px 20px;border:1px dashed var(--line-2);border-radius:var(--r-card);background:#fff;
}
.empty .grid-dots{margin:0 auto 12px;width:26px;height:26px;}
.empty h3{font-size:17px;font-weight:600;}
.empty p{margin-top:6px;font-size:14px;color:var(--ink-3);}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#C9CCD1;padding:60px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.site-footer .logo-text{color:#fff;}
.site-footer .logo-mark i{background:var(--brand);}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.8;color:#8A9099;max-width:340px;}
.site-footer h3{font-size:14px;font-weight:600;color:#fff;letter-spacing:.2px;margin-bottom:14px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:#9BA0A8;transition:color .2s ease,padding-left .2s ease;}
.footer-links a:hover{color:var(--brand);padding-left:3px;}
.footer-divider{height:1px;background:rgba(255,255,255,.1);margin:44px 0 0;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 32px 28px;font-size:12.5px;color:#8A9099;
}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- 弹层 ---------- */
.modal-mask{
  position:fixed;inset:0;background:rgba(23,25,28,.5);
  display:flex;align-items:center;justify-content:center;padding:20px;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:100;
}
.modal-mask.is-open{opacity:1;visibility:visible;}
.modal{
  width:100%;max-width:460px;background:#fff;border-radius:var(--r-lg);
  padding:28px;box-shadow:0 24px 60px -24px rgba(0,0,0,.4);
  transform:translateY(10px);transition:transform .25s ease;
}
.modal-mask.is-open .modal{transform:translateY(0);}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:18px;}
.modal-head h3{font-size:20px;font-weight:700;}
.modal-head p{margin-top:6px;font-size:14px;color:var(--ink-2);}
.modal-close{width:34px;height:34px;border-radius:10px;border:1px solid var(--line-2);color:var(--ink-2);display:flex;align-items:center;justify-content:center;font-size:18px;}
.modal-close:hover{color:var(--brand);border-color:var(--brand);}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .container{padding:0 24px;}
  .main-nav{display:none;}
  .cmd-search{width:220px;}
  .burger{display:flex;}
  .page-head h1{font-size:32px;}
  .section{padding:64px 0;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:28px 0;}
  .stat-item:nth-child(3){border-left:0;padding-left:0;}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .faq-aside{position:static;}
  .cta-card{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .cmd-search,.kbd,.icon-btn{display:none;}
  .header-inner{height:56px;gap:12px;}
  .main-nav{display:none;}
  .burger{display:flex;}
  .section{padding:48px 0;}
  .grid-3,.grid-2{grid-template-columns:1fr;}
  .page-head .container{padding-top:32px;padding-bottom:28px;}
  .page-head h1{font-size:28px;}
  .page-head .lead{font-size:16px;}
  .section-title h2,.faq-aside h2,.cta-card h2{font-size:22px;}
  .stat-num{font-size:34px;}
  .stat-band{padding:44px 0;}
  .tl-item{padding-left:48px;}
  .tl-dot{width:30px;height:30px;font-size:13px;}
  .timeline::before{left:15px;}
  .cta-card{padding:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{padding:20px 24px 26px;font-size:12px;}
  .modal-mask{align-items:flex-end;padding:0;}
  .modal{max-width:100%;border-radius:20px 20px 0 0;transform:translateY(100%);padding:24px;}
  .modal-mask.is-open .modal{transform:translateY(0);}
}
@media (min-width:768px) and (max-width:1023px){
  .header-actions .cmd-search{display:flex;}
}

/* roulang page: category4 */
:root{
  --brand:#FF6A1F;
  --brand-dark:#E2540C;
  --brand-soft:#FFF1E8;
  --ink:#17191C;
  --gray:#5A6069;
  --gray-light:#8A9099;
  --bg:#FAF7F2;
  --card:#FFFFFF;
  --line:#ECE7E0;
  --border-input:#E3DCD2;
  --mint:#17BF9C;
  --warn:#D94A3D;
  --r-card:14px;
  --r-block:20px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(23,25,28,.06);
  --shadow-2:0 8px 24px -12px rgba(23,25,28,.12);
  --header-h:68px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:72px 0}
.section-tight{padding:56px 0}
.muted{color:var(--gray);font-size:15px}
.mini{color:var(--gray-light);font-size:14px}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{display:flex;align-items:center;gap:24px;height:var(--header-h)}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{display:grid;grid-template-columns:repeat(3,4px);gap:2px}
.logo-mark i{width:4px;height:4px;border-radius:1px;background:var(--brand);display:block}
.logo-mark i:nth-child(5){background:var(--ink)}
.logo-text{font-size:18px;font-weight:700;letter-spacing:-.2px}
.main-nav{display:flex;align-items:center;gap:2px}
.nav-link{
  position:relative;display:inline-block;padding:8px 12px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--ink);transition:color .18s ease,background-color .18s ease;
}
.nav-link:hover{color:var(--brand);background:rgba(255,106,31,.08)}
.nav-link.is-active{color:var(--brand)}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--brand);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.cmd-search{
  display:flex;align-items:center;gap:8px;width:280px;height:40px;padding:0 12px;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-btn);color:var(--gray-light);
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.cmd-search:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 2px rgba(255,106,31,.18)}
.cmd-search input{flex:1;min-width:0;border:0;background:transparent;outline:none;font-size:14px;color:var(--ink)}
.cmd-search .kbd{
  font-size:12px;line-height:18px;padding:0 5px;border:1px solid var(--line);border-radius:6px;
  background:#fff;color:var(--gray-light);font-variant-numeric:tabular-nums;
}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;
  border:1px solid var(--border-input);border-radius:var(--r-btn);background:#fff;color:var(--gray);
  transition:color .18s ease,border-color .18s ease,transform .18s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);transform:translateY(-1px)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 20px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:#fff;border:1px solid var(--border-input);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn[disabled]{background:#E8E2DA;color:#A8A29A;pointer-events:none}
.burger{
  display:none;width:40px;height:40px;border:1px solid var(--border-input);border-radius:var(--r-btn);
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.burger span{display:block;width:16px;height:2px;border-radius:2px;background:var(--ink)}
.textlink{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:var(--ink)}
.textlink .arrow{transition:transform .18s ease}
.textlink:hover{color:var(--brand)}
.textlink:hover .arrow{transform:translateX(3px)}

/* ============ drawer ============ */
.mask{
  position:fixed;inset:0;background:rgba(23,25,28,.5);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:80;
}
.mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;width:320px;max-width:88vw;height:100%;background:#fff;z-index:90;
  transform:translateX(100%);transition:transform .28s ease;padding:24px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.drawer-nav a{padding:12px;border-radius:var(--r-btn);font-size:16px;font-weight:500}
.drawer-nav a:hover{background:var(--brand-soft);color:var(--brand)}
.drawer-nav a.is-active{color:var(--brand);background:var(--brand-soft)}
.drawer-close{width:36px;height:36px;border:1px solid var(--border-input);border-radius:10px;font-size:18px;color:var(--gray);line-height:1}
body.no-scroll{overflow:hidden}

/* ============ page head ============ */
.page-head{
  padding:44px 0 32px;
  background-image:linear-gradient(100deg,rgba(250,247,242,.95),rgba(250,247,242,.74)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--gray-light);margin-bottom:16px}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb li:not(:last-child)::after{content:"/";margin-left:8px;color:#C9C2B8}
.breadcrumb li.is-current{color:var(--brand);font-weight:500}
h1{font-size:40px;line-height:1.24;font-weight:700;letter-spacing:-.5px;max-width:900px}
.page-sub{font-size:18px;line-height:1.7;color:var(--gray);max-width:720px;margin-top:16px}
.page-head-line{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:28px;padding-top:18px;border-top:1px solid var(--line);
}
.head-tags{display:flex;flex-wrap:wrap;gap:8px}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;line-height:1}
.badge-brand{background:rgba(255,106,31,.12);color:var(--brand-dark)}
.badge-new{background:rgba(255,106,31,.14);color:var(--brand-dark)}
.badge-adjust{background:rgba(23,191,156,.14);color:#0F8E74}
.badge-note{background:#F1EEE9;color:var(--gray)}
.badge-soft{background:var(--brand-soft);color:var(--brand-dark)}

/* ============ stats ============ */
.stats-band{
  background:var(--ink);border-radius:var(--r-block);padding:34px 32px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
}
.stat{padding:0 24px}
.stat:first-child{padding-left:0}
.stat + .stat{border-left:1px solid rgba(255,255,255,.12)}
.stat-num{font-size:44px;font-weight:700;line-height:1.1;color:#FAF7F2;font-variant-numeric:tabular-nums}
.stat-num small{font-size:18px;font-weight:600;margin-left:2px}
.stat-label{font-size:14px;color:#8A9099;margin-top:8px}
.stats-note{margin-top:14px;font-size:13px;color:var(--gray-light)}

/* ============ section head ============ */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:24px}
.section-head h2{font-size:28px;line-height:1.32;font-weight:700;letter-spacing:-.3px;position:relative;padding-left:16px}
.section-head h2::before{content:"";position:absolute;left:0;top:.32em;width:3px;height:.72em;border-radius:2px;background:var(--brand)}
.section-desc{font-size:15px;color:var(--gray);margin-top:10px;max-width:760px}

/* ============ table ============ */
.table-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-block);overflow:hidden;box-shadow:var(--shadow-1)}
.table-scroll{overflow-x:auto}
.data-table{width:100%;border-collapse:collapse;font-size:15px}
.data-table thead th{
  background:var(--brand-soft);color:var(--brand-dark);font-size:14px;font-weight:600;text-align:left;
  padding:14px 18px;white-space:nowrap;
}
.data-table td{padding:16px 18px;border-top:1px solid var(--line);color:var(--gray);vertical-align:top;line-height:1.7}
.data-table tbody tr{transition:background-color .18s ease}
.data-table tbody tr:hover{background:rgba(255,106,31,.07)}
.data-table td:first-child{color:var(--ink);font-weight:600;font-variant-numeric:tabular-nums;white-space:nowrap}
.data-table td strong{color:var(--ink);font-weight:600}
.data-table .col-scope{color:var(--gray);white-space:nowrap}
.table-foot{padding:16px 18px;border-top:1px solid var(--line);background:#fff;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}

/* ============ cards ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#FFCFB0}
.card h3{font-size:20px;line-height:1.4;font-weight:600}
.card p{margin-top:10px;font-size:15px;line-height:1.75;color:var(--gray)}
.card .card-icon{
  display:grid;grid-template-columns:repeat(3,4px);gap:3px;margin-bottom:16px;
}
.card .card-icon i{width:4px;height:4px;border-radius:1px;background:#FFC39B}
.card .card-icon i:nth-child(1),.card .card-icon i:nth-child(5),.card .card-icon i:nth-child(9){background:var(--brand)}
.card-tip{margin-top:16px;background:var(--brand-soft);border-radius:10px;padding:10px 12px;font-size:14px;color:var(--brand-dark)}

.change-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px}
.change-feature{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-block);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;display:flex;flex-direction:column;
}
.change-feature:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#FFCFB0}
.change-feature figure{overflow:hidden;aspect-ratio:16/9;background:var(--brand-soft)}
.change-feature figure img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.change-feature:hover figure img{transform:scale(1.03)}
.change-feature .cf-body{padding:24px}
.change-side{display:grid;grid-template-rows:1fr 1fr;gap:24px}
.change-side .card{display:flex;flex-direction:column}
.change-side .card .textlink{margin-top:auto;padding-top:14px}

/* ============ list ============ */
.check-list{display:flex;flex-direction:column;gap:14px;margin-top:6px}
.check-list li{position:relative;padding-left:24px;font-size:15px;line-height:1.75;color:var(--gray)}
.check-list li::before{
  content:"";position:absolute;left:0;top:.6em;width:8px;height:8px;border-radius:2px;background:var(--brand);
}
.check-list li strong{color:var(--ink)}

/* ============ split figure ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.split figure{border-radius:var(--r-block);overflow:hidden;border:1px solid var(--line);background:#fff}
.split figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.split h2{font-size:28px;line-height:1.32;font-weight:700;letter-spacing:-.3px}
.split p{margin-top:14px;font-size:15px;line-height:1.8;color:var(--gray)}

/* ============ faq ============ */
.faq-grid{display:grid;grid-template-columns:340px 1fr;gap:40px;align-items:start}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 4px;font-size:16px;font-weight:600;cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:22px;font-weight:400;color:var(--brand);
  transition:transform .2s ease;line-height:1;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:hover{color:var(--brand)}
.faq-answer{padding:0 4px 22px;max-width:720px;font-size:15px;line-height:1.85;color:var(--gray)}
.faq-answer .badge{margin-bottom:10px}

/* ============ cta ============ */
.cta-band{
  background:var(--ink);border-radius:var(--r-block);padding:44px;color:#FAF7F2;
  display:grid;grid-template-columns:1.3fr 1fr;gap:32px;align-items:center;
}
.cta-band h2{font-size:28px;line-height:1.35;font-weight:700}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.8;color:#B9BCC1;max-width:560px}
.cta-links{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.cta-band .textlink{color:#FAF7F2}
.cta-band .textlink:hover{color:var(--brand)}

/* ============ footer ============ */
.site-footer{background:var(--ink);color:#C9CBCE;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding:56px 32px 40px}
.site-footer .logo-text{color:#fff}
.site-footer .logo-mark i{background:var(--brand)}
.site-footer .logo-mark i:nth-child(5){background:#fff}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:#8A9099;max-width:320px}
.site-footer h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:#A9ADB3;transition:color .18s ease}
.footer-links a:hover{color:var(--brand)}
.footer-divider{height:1px;background:rgba(255,255,255,.12)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 32px 32px;font-size:13px;color:#8A9099;
}

/* ============ responsive ============ */
@media (max-width:1023px){
  .container{padding:0 24px}
  .main-nav,.cmd-search{display:none}
  .burger{display:flex}
  .header-inner{gap:16px;height:56px}
  :root{--header-h:56px}
  h1{font-size:32px}
  .page-sub{font-size:17px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .change-grid{grid-template-columns:1fr}
  .change-side{grid-template-rows:auto;grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:28px}
  .faq-grid{grid-template-columns:1fr;gap:24px}
  .cta-band{grid-template-columns:1fr;padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 24px 32px}
  .footer-bottom{padding:20px 24px 28px}
  .stats-band{grid-template-columns:repeat(2,1fr);gap:24px 0;padding:28px 24px}
  .stat{padding:0 20px}
  .stat:nth-child(odd){padding-left:0;border-left:0}
  .stat:nth-child(even){border-left:1px solid rgba(255,255,255,.12)}
  .section{padding:56px 0}
  .section-head h2,.split h2,.cta-band h2{font-size:23px}
}
@media (max-width:639px){
  .container{padding:0 20px}
  h1{font-size:28px}
  .page-head{padding:32px 0 24px}
  .grid-3{grid-template-columns:1fr}
  .change-side{grid-template-columns:1fr}
  .stats-band{grid-template-columns:repeat(2,1fr)}
  .stat-num{font-size:34px}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:48px 0}
  .card{padding:20px}
  .cta-band{padding:28px}
  .page-head-line{align-items:flex-start;flex-direction:column}
  .data-table{font-size:14px}
  .data-table thead{display:none}
  .data-table tbody,.data-table tr,.data-table td{display:block;width:100%}
  .data-table tr{
    border:1px solid var(--line);border-radius:var(--r-card);padding:14px 16px;margin:12px;background:#fff;
  }
  .data-table tr + tr{margin-top:12px}
  .data-table td{border-top:0;padding:6px 0;display:flex;justify-content:space-between;gap:14px;white-space:normal}
  .data-table td::before{
    content:attr(data-label);flex:0 0 auto;font-size:13px;color:var(--gray-light);font-weight:500;
  }
  .data-table td:first-child{padding-top:0}
  .table-foot{flex-direction:column;align-items:flex-start}
}

/* roulang page: category3 */
:root{
  --primary:#FF6A1F;
  --primary-dark:#E2540C;
  --primary-soft:#FFF1E8;
  --ink:#17191C;
  --gray:#5A6069;
  --gray-light:#8A9099;
  --mint:#17BF9C;
  --warn:#D94A3D;
  --bg:#FAF7F2;
  --card:#FFFFFF;
  --line:#ECE7E0;
  --line-2:#E3DCD2;
  --radius-card:14px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(23,25,28,.06);
  --shadow-2:0 8px 24px -12px rgba(23,25,28,.12);
  --wrap:1200px;
  --sec-y:80px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0;padding:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
::selection{background:var(--primary-soft);color:var(--primary-dark)}

.container{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 32px}
.section{padding:var(--sec-y) 0}
.section--tight{padding:40px 0 0}
.section--dark{padding:56px 0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);transition:box-shadow .24s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none}
.logo-mark{display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);gap:2px;width:22px;height:22px}
.logo-mark i{display:block;width:100%;height:100%;border-radius:2px;background:var(--primary)}
.logo-mark i:nth-child(5){background:var(--ink)}
.logo-text{font-size:17px;font-weight:700;letter-spacing:-.01em}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-link{
  position:relative;padding:8px 12px;border-radius:8px;font-size:15px;font-weight:500;
  color:var(--ink);transition:color .2s,background .2s;white-space:nowrap;
}
.nav-link:hover{color:var(--primary);background:var(--primary-soft)}
.nav-link.is-active{color:var(--primary)}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;
  background:var(--primary);border-radius:2px;
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.cmd-search{
  display:flex;align-items:center;gap:8px;width:290px;height:40px;padding:0 12px;
  border:1px solid var(--line-2);border-radius:var(--radius-btn);background:#fff;
  color:var(--gray-light);transition:border-color .2s,box-shadow .2s;
}
.cmd-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 2px rgba(255,106,31,.18)}
.cmd-search svg{flex:none;color:var(--gray-light)}
.cmd-search input{
  flex:1;min-width:0;height:100%;border:0;outline:none;background:transparent;
  font-size:14px;color:var(--ink);
}
.cmd-search input::placeholder{color:var(--gray-light)}
.kbd{
  flex:none;font-size:11px;line-height:1;padding:4px 6px;border:1px solid var(--line-2);
  border-radius:6px;color:var(--gray-light);background:#FAF7F2;
}
.icon-btn{
  display:grid;place-items:center;width:40px;height:40px;border-radius:var(--radius-btn);
  border:1px solid var(--line-2);background:#fff;color:var(--gray);
  transition:border-color .2s,color .2s,box-shadow .2s;
}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);box-shadow:var(--shadow-1)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;
  padding:0 20px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;white-space:nowrap;transition:all .2s ease;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none;background:var(--primary-dark)}
.btn-ghost{background:#fff;border-color:var(--line-2);color:var(--ink)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.header-actions .btn{padding:0 18px}
.burger{display:none;width:40px;height:40px;border-radius:var(--radius-btn);border:1px solid var(--line-2);background:#fff;flex-direction:column;justify-content:center;align-items:center;gap:4px}
.burger span{display:block;width:16px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s}
.burger.is-on span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.burger.is-on span:nth-child(2){opacity:0}
.burger.is-on span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- drawer ---------- */
.overlay{position:fixed;inset:0;background:rgba(23,25,28,.5);opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;z-index:80}
.overlay.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;background:#fff;z-index:90;
  padding:22px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;
  transform:translateX(100%);transition:transform .28s ease;box-shadow:-8px 0 24px -16px rgba(23,25,28,.3);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.drawer .nav-link{display:block;padding:12px 14px;font-size:16px;border-radius:10px}
.drawer .nav-link.is-active::after{display:none}
.drawer .nav-link.is-active{background:var(--primary-soft)}
.drawer-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line-2);display:grid;place-items:center;color:var(--gray)}
.drawer-cta{margin-top:16px}
.drawer-note{font-size:13px;color:var(--gray-light);margin-top:14px;line-height:1.7}

/* ---------- page head ---------- */
.page-head{padding:40px 0 8px;position:relative;overflow:hidden}
.page-head .dots{
  position:absolute;top:34px;right:32px;width:66px;height:66px;opacity:.5;
  display:grid;grid-template-columns:repeat(3,1fr);grid-template-rows:repeat(3,1fr);gap:6px;
}
.page-head .dots i{background:var(--primary);border-radius:50%;opacity:.35}
.breadcrumb{display:flex;flex-wrap:wrap;gap:6px;font-size:14px;color:var(--gray-light)}
.breadcrumb li{display:flex;align-items:center;gap:6px}
.breadcrumb li+li::before{content:"/";color:var(--line-2)}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .current{color:var(--primary)}
h1.page-title{font-size:40px;line-height:1.2;margin-top:16px;max-width:880px}
.page-sub{color:var(--gray);font-size:18px;margin-top:14px;max-width:720px}
.page-head-bar{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  margin-top:26px;padding-top:18px;border-top:1px solid var(--line);
  font-size:14px;color:var(--gray-light);
}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:var(--ink);transition:color .2s}
.text-link .arw{transition:transform .2s ease}
.text-link:hover{color:var(--primary)}
.text-link:hover .arw{transform:translateX(3px)}

/* ---------- search panel ---------- */
.search-panel{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:16px;
}
.search-big{
  display:flex;align-items:center;gap:12px;height:52px;padding:0 16px;
  border:1px solid var(--line-2);border-radius:12px;background:#fff;
  transition:border-color .2s,box-shadow .2s;color:var(--gray-light);
}
.search-big:focus-within{border-color:var(--primary);box-shadow:0 0 0 2px rgba(255,106,31,.18)}
.search-big input{flex:1;min-width:0;border:0;outline:none;background:transparent;font-size:16px;color:var(--ink)}
.search-big input::placeholder{color:var(--gray-light)}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.chip-label{font-size:13px;color:var(--gray-light);margin-right:2px}
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  border:1px solid var(--line-2);background:#fff;font-size:13.5px;color:var(--gray);
  transition:all .2s ease;
}
.chip:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
.chip.is-on{background:var(--primary);border-color:var(--primary);color:#fff}

/* ---------- section head ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:26px}
.sec-title{font-size:28px;display:flex;align-items:center;gap:12px}
.sec-title::before{content:"";width:4px;height:24px;border-radius:2px;background:var(--primary);flex:none}
.sec-desc{font-size:15px;color:var(--gray);margin-top:10px;max-width:760px}
.sec-meta{font-size:14px;color:var(--gray-light)}

/* ---------- qa grid ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;align-items:start;scroll-margin-top:100px}
.qa-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);transition:border-color .2s,box-shadow .2s,transform .2s ease;
  overflow:hidden;
}
.qa-item:hover{border-color:#F7C9A9;box-shadow:var(--shadow-2);transform:translateY(-2px)}
.qa-item.is-open{border-color:#F7C9A9;box-shadow:var(--shadow-2)}
.qa-head{display:grid;grid-template-columns:auto 1fr auto;gap:12px;align-items:start;width:100%;padding:20px;text-align:left}
.qa-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);font-size:12.5px;font-weight:500;flex:none;margin-top:2px;
}
.qa-q{font-size:17px;font-weight:600;line-height:1.6}
.qa-icon{position:relative;width:20px;height:20px;flex:none;margin-top:4px}
.qa-icon::before,.qa-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;transition:transform .22s ease,opacity .22s ease;
}
.qa-icon::before{left:0;top:9px;width:20px;height:2px}
.qa-icon::after{left:9px;top:0;width:2px;height:20px}
.qa-item.is-open .qa-icon::after{transform:scaleY(0);opacity:0}
.qa-body{max-height:0;overflow:hidden;transition:max-height .24s ease}
.qa-inner{padding:0 20px 22px 20px;color:var(--gray);font-size:15.5px;line-height:1.85}
.qa-inner p+p{margin-top:10px}
.qa-empty{
  display:none;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  padding:56px 24px;background:var(--card);border:1px dashed var(--line-2);border-radius:var(--radius-card);
  text-align:center;grid-column:1/-1;
}
.dot-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;width:42px;height:42px}
.dot-grid i{background:var(--line-2);border-radius:50%}
.qa-empty strong{font-size:17px}
.qa-empty span{font-size:14px;color:var(--gray-light)}

/* ---------- steps ---------- */
.steps{max-width:780px;display:flex;flex-direction:column}
.step{display:grid;grid-template-columns:30px 1fr;gap:20px;padding-bottom:30px;position:relative}
.step::before{content:"";position:absolute;left:14px;top:32px;bottom:0;width:1px;background:var(--line)}
.step:last-child{padding-bottom:0}
.step:last-child::before{display:none}
.step-num{
  width:30px;height:30px;border-radius:50%;background:var(--primary);color:#fff;
  font-size:14px;font-weight:600;display:grid;place-items:center;position:relative;z-index:1;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:20px}
.step p{color:var(--gray);font-size:15px;margin-top:8px;max-width:640px}
.tip{
  margin-top:12px;padding:12px 16px;border-radius:10px;background:var(--primary-soft);
  border-left:3px solid var(--primary);font-size:14px;color:var(--gray);
}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:12px;
  transition:border-color .2s,box-shadow .2s,transform .2s ease;
}
.card:hover{border-color:#F7C9A9;box-shadow:var(--shadow-2);transform:translateY(-2px)}
.card .dot-grid{width:34px;height:34px}
.card .dot-grid i{background:var(--primary);opacity:.32}
.card h3{font-size:19px}
.card p{font-size:15px;color:var(--gray);line-height:1.75}
.card .text-link{margin-top:auto;font-size:14.5px}

/* ---------- split ---------- */
.split{display:grid;grid-template-columns:1.02fr .98fr;gap:44px;align-items:center}
.split-media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-2);border:1px solid var(--line)}
.split-media img{width:100%;height:320px;object-fit:cover}
.split-body h2{font-size:28px}
.split-body p{color:var(--gray);font-size:15.5px;margin-top:14px}
.check-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--gray);align-items:flex-start}
.check-list li::before{
  content:"";width:8px;height:8px;border-radius:2px;background:var(--primary);flex:none;margin-top:9px;
}
.split-body .text-link{margin-top:20px}

/* ---------- stats ---------- */
.stats{background:var(--ink);color:#fff}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.stat{padding:0 26px;border-left:1px solid rgba(255,255,255,.12)}
.stat:first-child{border-left:0;padding-left:0}
.stat:last-child{padding-right:0}
.stat-num{font-size:44px;font-weight:700;line-height:1.1;font-variant-numeric:tabular-nums;color:#fff}
.stat-num em{font-style:normal;font-size:20px;color:var(--primary);margin-left:4px}
.stat-label{font-size:14px;color:var(--gray-light);margin-top:10px;line-height:1.6}
.stats-note{margin-top:28px;font-size:13px;color:var(--gray-light)}

/* ---------- form ---------- */
.form-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:start}
.form-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow-1);
}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.field label{font-size:14px;color:var(--gray);font-weight:500}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line-2);border-radius:10px;background:#fff;
  font-size:15px;padding:0 14px;height:44px;outline:none;
  transition:border-color .2s,box-shadow .2s;
}
.field textarea{height:auto;min-height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary);box-shadow:0 0 0 2px rgba(255,106,31,.18);
}
.form-card .btn{width:100%}
.form-msg{
  display:none;margin-top:14px;padding:12px 14px;border-radius:10px;
  background:rgba(23,191,156,.1);border:1px solid rgba(23,191,156,.35);
  color:#0E8A70;font-size:14px;align-items:center;gap:8px;
}
.form-msg.is-on{display:flex}
.privacy-note{font-size:14px;color:var(--gray-light);margin-top:16px;line-height:1.7}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:#fff;padding:56px 0 24px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo-text{color:#fff}
.footer-brand p{color:var(--gray-light);font-size:14px;margin-top:14px;max-width:320px;line-height:1.8}
.site-footer h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--gray-light);transition:color .2s}
.footer-links a:hover{color:var(--primary)}
.footer-divider{height:1px;background:rgba(255,255,255,.12);margin:36px 0 18px}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12.5px;color:var(--gray-light)}

/* ---------- responsive ---------- */
@media (max-width:1180px){
  .cmd-search{width:220px}
  .nav-link{padding:8px 10px}
}
@media (max-width:1023px){
  :root{--sec-y:56px}
  .main-nav{display:none}
  .cmd-search{display:none}
  .icon-btn{display:none}
  .header-actions .btn{display:none}
  .burger{display:flex}
  .header-inner{height:56px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .split{grid-template-columns:1fr;gap:28px}
  .split-media img{height:260px}
  .form-wrap{grid-template-columns:1fr;gap:28px}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 0}
  .stat:nth-child(3){border-left:0;padding-left:0}
  .stat:nth-child(odd){border-left:0;padding-left:0}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  h1.page-title{font-size:28px}
  .sec-title{font-size:22px}
  .split-body h2{font-size:22px}
  .card h3{font-size:18px}
  .step h3{font-size:18px}
  .qa-grid{grid-template-columns:1fr}
  .page-sub{font-size:16px}
  .stat-num{font-size:34px}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .search-panel{padding:18px}
  .form-card{padding:22px}
  .page-head .dots{display:none}
}
@media (max-width:520px){
  .card-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr;gap:22px 0}
  .stat{border-left:0;padding:0}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
  .btn{width:100%}
  .sec-head{align-items:flex-start}
}