/* roulang page: index */
:root{
  --brand-700:#0B6B62;
  --brand-500:#0F8A7E;
  --brand-300:#6FC7BC;
  --brand-050:#EAF1EF;
  --accent-500:#FF6B4A;
  --accent-050:#FFEDE8;
  --gold-500:#F2B53C;
  --ink-900:#14181A;
  --ink-700:#2E3639;
  --ink-500:#5A6569;
  --ink-300:#97A2A5;
  --line:#E2E0D9;
  --bg-0:#F7F5F0;
  --bg-1:#FFFFFF;
  --grey-050:#F1EFEA;
  --dark-900:#10211E;
  --dark-700:#16302B;
  --r-card:16px;
  --r-input:10px;
  --r-img:14px;
  --r-block:24px;
  --shadow-1:0 1px 2px rgba(20,24,26,.04),0 8px 24px rgba(20,24,26,.06);
  --shadow-2:0 2px 6px rgba(20,24,26,.06),0 16px 40px rgba(15,138,126,.14);
  --t:180ms ease;
  --maxw:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--bg-0);
  padding-bottom:72px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;transition:color var(--t),text-decoration-thickness var(--t);}
a:hover{color:var(--accent-500);text-decoration-thickness:2px;}
h1,h2,h3,h4{color:var(--ink-900);font-weight:700;letter-spacing:.015em;margin:0;line-height:1.42;}
h1{font-size:40px;line-height:1.35;}
h2{font-size:30px;line-height:1.45;}
h3{font-size:21px;line-height:1.5;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand-500);
  outline-offset:2px;
  box-shadow:0 0 0 3px rgba(15,138,126,.15);
}
.container-x{max-width:var(--maxw);margin:0 auto;padding:0 24px;width:100%;}
.section{padding:92px 0;}
.section--tight{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section-head .eyebrow{display:inline-block;font-size:13px;letter-spacing:.08em;color:var(--brand-700);background:var(--brand-050);border-radius:999px;padding:6px 12px;margin-bottom:14px;font-weight:600;}
.section-head p{margin:12px 0 0;color:var(--ink-500);font-size:15px;max-width:640px;}

/* 按钮 */
.btn-x{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:var(--r-input);font-weight:600;font-size:15px;text-decoration:none;cursor:pointer;transition:transform var(--t),background var(--t),color var(--t),border-color var(--t),box-shadow var(--t);padding:0 24px;height:52px;}
.btn-x.md{height:44px;padding:0 20px;}
.btn-x.sm{height:36px;padding:0 14px;font-size:14px;}
.btn-primary-x{background:var(--brand-500);color:#fff;}
.btn-primary-x:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);}
.btn-primary-x:active{transform:translateY(1px);}
.btn-accent-x{background:var(--accent-500);color:#fff;}
.btn-accent-x:hover{background:#E8573A;color:#fff;transform:translateY(-1px);}
.btn-outline-x{background:var(--bg-1);color:var(--brand-700);border-color:var(--brand-500);}
.btn-outline-x:hover{background:var(--brand-050);color:var(--brand-700);}
.link-x{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;}
.link-x .arw{transition:transform var(--t);display:inline-block;}
.link-x:hover .arw{transform:translateX(3px);}

/* 徽章 */
.badge-x{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:6px 12px;font-size:13px;font-weight:600;background:var(--brand-050);color:var(--brand-700);letter-spacing:.01em;}
.badge-x.accent{background:var(--accent-050);color:#C4442A;}
.badge-x.plain{background:var(--grey-050);color:var(--ink-500);}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.98);border-bottom:1px solid var(--line);transition:box-shadow var(--t),background var(--t);}
.site-header.is-scrolled{box-shadow:var(--shadow-1);background:rgba(255,255,255,.92);}
.nav-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:24px;}
.brand-x{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink-900);font-weight:700;font-size:18px;letter-spacing:.01em;white-space:nowrap;}
.brand-x:hover{color:var(--ink-900);text-decoration:none;}
.brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(140deg,var(--brand-500),var(--dark-700));display:flex;align-items:center;justify-content:center;flex:0 0 auto;}
.brand-mark svg{width:18px;height:18px;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{position:relative;display:inline-flex;align-items:center;height:68px;padding:0 14px;font-size:15px;font-weight:500;color:var(--ink-700);text-decoration:none;transition:color var(--t);}
.nav-links a::after{content:"";position:absolute;left:14px;right:14px;bottom:16px;height:2px;background:var(--brand-500);transform:scaleX(0);transform-origin:left center;transition:transform var(--t);}
.nav-links a:hover{color:var(--brand-700);}
.nav-links a.is-active{color:var(--brand-700);font-weight:600;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:16px;}
.nav-actions .ghost-link{font-size:15px;font-weight:600;color:var(--brand-700);text-decoration:none;}
.nav-actions .ghost-link:hover{color:var(--accent-500);}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:var(--bg-1);border-radius:var(--r-input);align-items:center;justify-content:center;cursor:pointer;}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-700);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-700);}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* 抽屉 */
.drawer{position:fixed;inset:0;z-index:1045;background:var(--bg-1);transform:translateX(100%);transition:transform 220ms ease;display:flex;flex-direction:column;padding:20px 22px calc(28px + env(safe-area-inset-bottom));overflow-y:auto;}
.drawer.is-open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-close{width:42px;height:42px;border-radius:var(--r-input);border:1px solid var(--line);background:var(--bg-1);font-size:20px;color:var(--ink-700);cursor:pointer;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;padding:18px 4px;font-size:19px;font-weight:600;color:var(--ink-900);text-decoration:none;border-bottom:1px solid var(--line);}
.drawer-nav a.is-active{color:var(--brand-700);}
.drawer-cta{margin-top:auto;padding-top:26px;}

/* Hero */
.hero{padding:76px 0 64px;background:var(--bg-0);}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.hero-copy h1{margin:18px 0 20px;}
.hero-sub{font-size:17px;color:var(--ink-500);max-width:520px;margin-bottom:30px;}
.hero-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-bottom:28px;}
.trust-row{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:14px;color:var(--ink-500);}
.trust-row .dot{width:6px;height:6px;border-radius:50%;background:var(--brand-300);}
.hero-visual{position:relative;border-radius:var(--r-block);overflow:hidden;min-height:420px;background:#123;box-shadow:var(--shadow-1);}
.hero-visual .hv-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;}
.hero-visual .hv-veil{position:absolute;inset:0;background:linear-gradient(150deg,rgba(16,33,30,.82),rgba(11,107,98,.66));}
.hero-panel{position:relative;z-index:2;padding:32px;display:grid;grid-template-columns:1fr 1fr;gap:16px;height:100%;align-content:center;}
.hero-stat{background:var(--bg-1);border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow-1);}
.hero-stat .num{font-size:28px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;line-height:1.2;}
.hero-stat .lbl{font-size:13px;color:var(--ink-500);margin-top:6px;}

/* 指标条 */
.stats-bar{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat-cell{padding:36px 28px;border-left:1px solid var(--line);}
.stat-cell:first-child{border-left:none;}
.stat-cell .val{font-size:42px;font-weight:700;color:var(--ink-900);font-variant-numeric:tabular-nums;line-height:1.1;letter-spacing:-.01em;}
.stat-cell .val small{font-size:15px;font-weight:600;color:var(--ink-500);margin-left:4px;}
.stat-cell .cap{font-size:14px;color:var(--ink-500);margin-top:10px;}
.stat-cell .mark{font-size:12px;color:var(--brand-500);margin-top:8px;font-weight:600;}

/* 服务矩阵 */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;grid-auto-rows:minmax(0,auto);}
.svc-card{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--shadow-1);transition:border-color var(--t),transform var(--t),box-shadow var(--t);display:flex;flex-direction:column;}
.svc-card:hover{border-color:var(--brand-300);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.svc-card .idx{font-size:30px;font-weight:700;color:var(--gold-500);font-variant-numeric:tabular-nums;letter-spacing:.02em;line-height:1;}
.svc-card h3{margin:16px 0 10px;font-size:20px;}
.svc-card p{font-size:15px;color:var(--ink-500);line-height:1.8;}
.svc-card .pts{margin-top:6px;display:flex;flex-direction:column;gap:10px;}
.svc-card .pts li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-700);}
.svc-card .pts li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--brand-300);}
.svc-card .foot{margin-top:auto;padding-top:20px;}
.svc-main{grid-column:span 6;grid-row:span 2;}
.svc-side{grid-column:span 3;}
.svc-icon{width:44px;height:44px;border-radius:12px;background:var(--brand-050);display:flex;align-items:center;justify-content:center;color:var(--brand-700);}
.svc-icon svg{width:22px;height:22px;}

/* 结果对比 */
.compare-head-link{font-size:15px;font-weight:600;}
.compare{display:grid;grid-template-columns:1fr 88px 1fr;gap:0;align-items:stretch;}
.cmp-col{border-radius:var(--r-block);padding:32px;}
.cmp-col.before{background:var(--grey-050);}
.cmp-col.after{background:var(--brand-050);}
.cmp-col h3{font-size:18px;margin-bottom:20px;display:flex;align-items:center;gap:10px;}
.cmp-item{padding:16px 0;border-top:1px solid rgba(20,24,26,.08);}
.cmp-item:first-of-type{border-top:none;padding-top:0;}
.cmp-item .t{font-size:16px;font-weight:600;color:var(--ink-900);margin-bottom:6px;}
.cmp-item .d{font-size:14px;color:var(--ink-500);line-height:1.75;}
.cmp-axis{position:relative;display:flex;align-items:center;justify-content:center;}
.cmp-axis::before{content:"";position:absolute;top:12%;bottom:12%;width:1px;background:var(--line);}
.cmp-axis .node{position:relative;z-index:2;width:44px;height:44px;border-radius:50%;background:var(--bg-1);border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--brand-500);box-shadow:var(--shadow-1);}
.cmp-axis .node svg{width:18px;height:18px;}

/* 流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.step-card{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:26px;transition:border-color var(--t),transform var(--t),box-shadow var(--t);}
.step-card:hover{border-color:var(--brand-300);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.step-card .no{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:var(--brand-050);color:var(--brand-700);font-weight:700;font-size:14px;}
.step-card h3{font-size:18px;margin:16px 0 8px;}
.step-card p{font-size:14px;color:var(--ink-500);margin:0;line-height:1.75;}

/* 最新信息 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;transition:border-color var(--t),transform var(--t),box-shadow var(--t);}
.news-card:hover{border-color:var(--brand-300);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.news-card .thumb{margin:0;border-radius:0;}
.news-card .thumb img{width:100%;height:186px;object-fit:cover;border-radius:0;}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.news-body h3{font-size:18px;line-height:1.55;margin:12px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body h3 a{color:var(--ink-900);text-decoration:none;}
.news-body h3 a:hover{color:var(--brand-700);text-decoration:underline;}
.news-body .sum{font-size:14px;line-height:1.7;color:var(--ink-500);margin:0 0 18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:auto;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-300);}
.news-meta .sep{width:3px;height:3px;border-radius:50%;background:var(--ink-300);}
.news-card--lead{grid-column:span 2;flex-direction:row;}
.news-card--lead .thumb{flex:0 0 46%;}
.news-card--lead .thumb img{height:100%;min-height:230px;}
.news-card--lead .news-body{padding:28px 30px;}
.news-card--lead .news-body h3{font-size:21px;-webkit-line-clamp:3;}
.news-card--lead .news-body .sum{-webkit-line-clamp:3;}
.news-empty{border:1px dashed var(--line);border-radius:var(--r-card);background:var(--bg-1);min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;text-align:center;padding:32px;}
.news-empty .ico{width:46px;height:46px;border-radius:50%;background:var(--brand-050);display:flex;align-items:center;justify-content:center;color:var(--brand-700);}
.news-empty p{color:var(--ink-500);font-size:15px;margin:0;}

/* FAQ */
.faq-wrap{max-width:880px;margin:0 auto;}
.accordion-x .accordion-item{background:var(--bg-1);border:1px solid var(--line);border-radius:14px;margin-bottom:10px;overflow:hidden;transition:border-color var(--t),box-shadow var(--t);}
.accordion-x .accordion-item:hover{border-color:var(--brand-300);}
.accordion-x .accordion-button{width:100%;text-align:left;background:transparent;border:none;padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink-900);display:flex;align-items:center;justify-content:space-between;gap:16px;position:relative;cursor:pointer;box-shadow:none;}
.accordion-x .accordion-button::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:var(--brand-500);transform:scaleY(0);transform-origin:center;transition:transform 200ms ease;}
.accordion-x .accordion-button:not(.collapsed){color:var(--brand-700);}
.accordion-x .accordion-button:not(.collapsed)::before{transform:scaleY(1);}
.accordion-x .accordion-button:focus{box-shadow:none;}
.accordion-x .accordion-button .sign{flex:0 0 auto;width:24px;height:24px;position:relative;color:var(--brand-500);}
.accordion-x .accordion-button .sign::before,.accordion-x .accordion-button .sign::after{content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform 200ms ease;}
.accordion-x .accordion-button .sign::before{left:4px;right:4px;top:11px;height:2px;}
.accordion-x .accordion-button .sign::after{top:4px;bottom:4px;left:11px;width:2px;}
.accordion-x .accordion-button:not(.collapsed) .sign::after{transform:scaleY(0);}
.accordion-x .accordion-body{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--ink-500);}

/* 转化表单 */
.cta-block{background:var(--dark-900);border-radius:var(--r-block);padding:56px;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;color:#fff;}
.cta-block h2{color:#fff;}
.cta-block .lead-txt{color:rgba(255,255,255,.72);font-size:15px;margin-top:14px;line-height:1.85;}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:14px;}
.cta-points li{display:flex;align-items:flex-start;gap:12px;font-size:15px;color:rgba(255,255,255,.86);}
.cta-points svg{flex:0 0 auto;width:20px;height:20px;margin-top:3px;color:var(--brand-300);}
.form-card{background:var(--bg-1);border-radius:var(--r-card);padding:30px;box-shadow:var(--shadow-1);}
.form-card .field{margin-bottom:16px;}
.form-card label{display:block;font-size:14px;font-weight:600;color:var(--ink-700);margin-bottom:8px;}
.form-card .req{color:var(--accent-500);}
.form-card input,.form-card select,.form-card textarea{
  width:100%;height:48px;border:1px solid #D8D6CF;border-radius:var(--r-input);padding:0 14px;font-size:15px;color:var(--ink-900);background:var(--bg-1);
  transition:border-color var(--t),box-shadow var(--t);appearance:none;-webkit-appearance:none;
}
.form-card textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-card select{background-image:linear-gradient(45deg,transparent 50%,var(--ink-500) 50%),linear-gradient(135deg,var(--ink-500) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat;padding-right:40px;}
.form-card input:focus,.form-card select:focus,.form-card textarea:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(15,138,126,.15);}
.form-card .btn-x{width:100%;height:52px;}
.form-hint{font-size:13px;color:var(--ink-300);margin:14px 0 0;line-height:1.7;}
.form-note{font-size:13px;color:var(--brand-700);background:var(--brand-050);border-radius:var(--r-input);padding:10px 14px;margin-top:14px;display:none;}
.form-note.is-on{display:block;}

/* 页脚 */
.site-footer{background:var(--bg-1);border-top:1px solid var(--line);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;}
.footer-grid h4{font-size:14px;font-weight:700;color:var(--ink-900);margin-bottom:16px;letter-spacing:.02em;}
.footer-grid p{font-size:14px;color:var(--ink-500);line-height:1.8;margin:14px 0 0;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:var(--ink-500);text-decoration:none;}
.footer-links a:hover{color:var(--brand-700);text-decoration:underline;}
.footer-bottom{margin-top:48px;padding-top:22px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:13px;color:var(--ink-300);}
.to-top{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--ink-500);text-decoration:none;}
.to-top:hover{color:var(--brand-700);}

/* 移动底部 Tab */
.mobile-tab{position:fixed;left:0;right:0;bottom:0;z-index:1040;display:none;background:var(--bg-1);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom);}
.mobile-tab ul{display:grid;grid-template-columns:repeat(4,1fr);}
.mobile-tab a{height:60px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:10px;color:var(--ink-500);text-decoration:none;}
.mobile-tab svg{width:22px;height:22px;stroke-width:1.7;}
.mobile-tab a.is-active{color:var(--brand-700);font-weight:600;}

@media (max-width:1199px){
  .svc-main{grid-column:span 6;}
  .svc-side{grid-column:span 6;}
}
@media (max-width:991px){
  h1{font-size:32px;}
  h2{font-size:26px;}
  .nav-links,.nav-actions{display:none;}
  .nav-toggle{display:flex;}
  .mobile-tab{display:block;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero{padding:48px 0;}
  .hero-visual{min-height:340px;}
  .section{padding:64px 0;}
  .section--tight{padding:56px 0;}
  .stats-grid{grid-template-columns:1fr 1fr;}
  .stat-cell{border-left:none;border-top:1px solid var(--line);}
  .stat-cell:nth-child(-n+2){border-top:none;}
  .stat-cell:nth-child(even){border-left:1px solid var(--line);}
  .bento{grid-template-columns:1fr;}
  .svc-main,.svc-side{grid-column:span 1;grid-row:auto;}
  .compare{grid-template-columns:1fr;}
  .cmp-axis{height:64px;}
  .cmp-axis::before{top:0;bottom:0;left:50%;width:1px;}
  .cmp-axis .node{transform:rotate(90deg);}
  .steps{grid-template-columns:1fr 1fr;}
  .news-grid{grid-template-columns:1fr 1fr;}
  .news-card--lead{grid-column:span 2;flex-direction:column;}
  .news-card--lead .thumb{flex:0 0 auto;}
  .news-card--lead .thumb img{height:220px;min-height:0;}
  .cta-block{grid-template-columns:1fr;padding:36px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:575px){
  .container-x{padding:0 18px;}
  h1{font-size:28px;}
  h2{font-size:24px;}
  .section{padding:56px 0;}
  .hero-panel{grid-template-columns:1fr;padding:22px;}
  .hero-stat .num{font-size:24px;}
  .stats-grid{grid-template-columns:1fr;}
  .stat-cell{border-left:none;border-top:1px solid var(--line);}
  .stat-cell:first-child{border-top:none;}
  .stat-cell:nth-child(even){border-left:none;}
  .steps{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .news-card--lead{grid-column:span 1;}
  .news-card--lead .thumb img{height:190px;}
  .form-card{padding:22px;}
  .cta-block{padding:26px;border-radius:18px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  .svc-card:hover,.step-card:hover,.news-card:hover,.btn-x:hover{transform:none !important;}
}

/* roulang page: article */
:root{
  --brand-700:#0B6B62;
  --brand-500:#0F8A7E;
  --brand-300:#6FC7BC;
  --brand-050:#EAF1EF;
  --accent-500:#FF6B4A;
  --accent-050:#FFEDE7;
  --gold-500:#F2B53C;
  --ink-900:#14181A;
  --ink-700:#2E3639;
  --ink-500:#5A6569;
  --ink-300:#97A2A5;
  --line:#E2E0D9;
  --bg-0:#F7F5F0;
  --bg-1:#FFFFFF;
  --dark-900:#10211E;
  --dark-700:#16302B;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --radius-dark:24px;
  --shadow-1:0 1px 2px rgba(20,24,26,.04),0 8px 24px rgba(20,24,26,.06);
  --shadow-2:0 2px 6px rgba(20,24,26,.06),0 16px 40px rgba(15,138,126,.14);
  --font-zh:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-zh);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--bg-0);
  padding-bottom:0;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
a:hover{color:var(--accent-500);text-decoration-thickness:2px;}
h1,h2,h3,h4{color:var(--ink-900);font-weight:700;letter-spacing:.015em;margin:0;}
p{margin:0 0 1.1em;}
ul,ol{margin:0 0 1.1em;padding-left:1.3em;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;box-shadow:0 0 0 3px rgba(15,138,126,.15);}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .18s ease,background .18s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);background:rgba(255,255,255,.96);}
.nav-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px;}
.brand-x{
  display:inline-flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;color:var(--ink-900);
  text-decoration:none;letter-spacing:.02em;white-space:nowrap;
}
.brand-x:hover{color:var(--brand-700);text-decoration:none;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  background:linear-gradient(140deg,var(--brand-500),var(--brand-700));
  display:inline-flex;align-items:center;justify-content:center;
}
.brand-mark svg{width:20px;height:20px;}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-links a{
  position:relative;font-size:14.5px;font-weight:500;color:var(--ink-700);
  text-decoration:none;padding:6px 0;transition:color .18s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand-500);border-radius:2px;transform:scaleX(0);
  transform-origin:left center;transition:transform .18s ease;
}
.nav-links a:hover{color:var(--brand-700);}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--brand-700);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:16px;}
.ghost-link{
  font-size:14px;font-weight:500;color:var(--ink-500);text-decoration:none;
  transition:color .18s ease;
}
.ghost-link:hover{color:var(--brand-700);text-decoration:none;}
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);font-weight:600;text-decoration:none;
  border:1px solid transparent;cursor:pointer;transition:all .18s ease;white-space:nowrap;
}
.btn-x:hover{text-decoration:none;transform:translateY(-1px);}
.btn-x:active{transform:translateY(1px);}
.btn-x.sm{height:38px;padding:0 18px;font-size:14px;}
.btn-accent-x{background:var(--accent-500);color:#fff;box-shadow:0 6px 16px rgba(255,107,74,.22);}
.btn-accent-x:hover{background:#E85A3A;color:#fff;}
.btn-brand-x{background:var(--brand-500);color:#fff;box-shadow:0 6px 16px rgba(15,138,126,.2);}
.btn-brand-x:hover{background:var(--brand-700);color:#fff;}
.btn-outline-x{background:var(--bg-1);border-color:var(--brand-500);color:var(--brand-700);}
.btn-outline-x:hover{background:var(--brand-050);color:var(--brand-700);}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
  background:#fff;position:relative;cursor:pointer;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--ink-700);border-radius:2px;
  transform:translateX(-50%);transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";top:-6px;}
.nav-toggle span::after{content:"";top:6px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{transform:translateX(-50%) rotate(45deg);top:0;}
.nav-toggle.is-open span::after{transform:translateX(-50%) rotate(-45deg);top:0;}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:var(--bg-1);border-bottom:1px solid var(--line);}
.crumb-inner{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:14px 0;font-size:14px;color:var(--ink-500);
}
.crumb-inner a{color:var(--ink-500);text-decoration:none;}
.crumb-inner a:hover{color:var(--brand-700);}
.crumb-sep{color:var(--ink-300);}
.crumb-current{color:var(--brand-700);font-weight:600;}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;background:var(--brand-050);
  border-bottom:1px solid var(--line);overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:right center;
  opacity:.12;pointer-events:none;
}
.article-hero .container-x{position:relative;z-index:1;padding-top:38px;padding-bottom:40px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;color:var(--brand-700);border:1px solid var(--brand-300);
  border-radius:999px;font-size:13px;font-weight:600;padding:5px 14px;margin-bottom:16px;
}
.article-hero h1{
  font-size:34px;line-height:1.42;max-width:900px;margin-bottom:18px;letter-spacing:.01em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:var(--ink-300);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--ink-300);display:inline-block;}
.article-meta .meta-cat{color:var(--brand-700);font-weight:600;}

/* ---------- layout ---------- */
.page-main{padding:56px 0 0;}
.reader-col{max-width:760px;margin:0 auto;}

/* ---------- entry content ---------- */
.entry-content{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:44px 46px 36px;box-shadow:var(--shadow-1);
  font-size:17px;line-height:1.9;color:var(--ink-700);
}
.entry-content > *:first-child{margin-top:0;}
.entry-content p{margin:0 0 1.2em;}
.entry-content h2{
  position:relative;font-size:24px;line-height:1.5;margin:44px 0 18px;padding-left:16px;
}
.entry-content h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:1em;
  background:var(--brand-500);border-radius:3px;
}
.entry-content h3{font-size:20px;line-height:1.5;margin:32px 0 14px;color:var(--brand-700);}
.entry-content h4{font-size:17px;margin:24px 0 12px;}
.entry-content ul,.entry-content ol{line-height:1.85;margin:0 0 1.2em;padding-left:1.35em;}
.entry-content li{margin-bottom:.55em;}
.entry-content li::marker{color:var(--brand-500);font-weight:700;}
.entry-content blockquote{
  margin:26px 0;padding:18px 22px;background:var(--brand-050);
  border-left:4px solid var(--brand-500);border-radius:0 var(--radius-img) var(--radius-img) 0;
  color:var(--ink-700);font-size:16px;
}
.entry-content blockquote p:last-child{margin-bottom:0;}
.entry-content img{border-radius:var(--radius-img);margin:24px auto;}
.entry-content figure{margin:24px 0;}
.entry-content figcaption{font-size:13px;color:var(--ink-300);text-align:center;margin-top:10px;}
.entry-content table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;background:#fff;
}
.entry-content th,.entry-content td{
  border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top;
}
.entry-content th{background:var(--brand-050);color:var(--brand-700);font-weight:600;}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:22px 0;}
.entry-content code{
  background:var(--bg-0);border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;font-size:14px;color:var(--brand-700);
}
.entry-content hr{border:0;border-top:1px solid var(--line);margin:36px 0;}

/* ---------- empty state ---------- */
.empty-state{
  background:var(--bg-1);border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:64px 32px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 18px;border-radius:16px;
  background:var(--brand-050);display:flex;align-items:center;justify-content:center;
  color:var(--brand-500);
}
.empty-state h2{font-size:22px;margin-bottom:12px;}
.empty-state p{font-size:15px;color:var(--ink-500);margin-bottom:24px;}

/* ---------- inline cta ---------- */
.inline-cta{
  margin:36px 0 0;padding:24px 26px;border-radius:var(--radius-card);
  background:var(--brand-050);border:1px solid var(--brand-300);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.inline-cta h3{font-size:18px;margin-bottom:6px;color:var(--brand-700);}
.inline-cta p{margin:0;font-size:14px;color:var(--ink-500);}

/* ---------- tags ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:32px 0 0;}
.tag-chip{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-050);color:var(--brand-700);
  border:1px solid transparent;border-radius:999px;
  font-size:13px;font-weight:500;padding:6px 14px;text-decoration:none;
  transition:all .18s ease;
}
.tag-chip:hover{background:#fff;border-color:var(--brand-300);color:var(--brand-700);transform:translateY(-1px);}

/* ---------- sections ---------- */
.section-x{padding:88px 0;}
.section-x.tight{padding:64px 0 88px;}
.section-head{margin-bottom:36px;max-width:760px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand-700);
  background:var(--brand-050);border-radius:999px;padding:5px 13px;margin-bottom:14px;letter-spacing:.02em;
}
.section-head h2{font-size:30px;line-height:1.45;margin-bottom:12px;}
.section-head p{color:var(--ink-500);font-size:16px;margin:0;}

/* ---------- related cards ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  text-decoration:none;height:100%;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-300);text-decoration:none;}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--brand-050);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.news-tag{
  align-self:flex-start;font-size:12px;font-weight:600;color:var(--brand-700);
  background:var(--brand-050);border-radius:999px;padding:4px 11px;margin-bottom:12px;
}
.news-card h3{font-size:18px;line-height:1.55;margin-bottom:10px;color:var(--ink-900);}
.news-card:hover h3{color:var(--brand-700);}
.news-card .news-desc{font-size:14px;line-height:1.75;color:var(--ink-500);margin:0 0 16px;}
.news-meta{margin-top:auto;font-size:13px;color:var(--ink-300);display:flex;align-items:center;gap:8px;}

/* ---------- back actions ---------- */
.back-actions{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:40px;padding-top:28px;border-top:1px solid var(--line);
}
.prev-next{display:flex;flex-wrap:wrap;gap:22px;}
.prev-next a{font-size:14px;font-weight:600;color:var(--brand-700);text-decoration:none;transition:transform .18s ease,color .18s ease;display:inline-flex;align-items:center;gap:6px;}
.prev-next a:hover{color:var(--accent-500);transform:translateX(2px);text-decoration:none;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--brand-050);border-top:1px solid var(--line);
  padding:64px 0 26px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
.footer-grid p{font-size:14px;line-height:1.8;color:var(--ink-500);margin:14px 0 0;max-width:320px;}
.footer-grid h4{font-size:14px;font-weight:700;margin-bottom:14px;color:var(--ink-900);}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--ink-500);text-decoration:none;transition:color .18s ease;}
.footer-links a:hover{color:var(--brand-700);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--ink-500);
}
.to-top{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--brand-700);text-decoration:none;
}
.to-top:hover{color:var(--accent-500);text-decoration:none;}

/* ---------- mobile tabbar ---------- */
.tabbar-x{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:1040;
  background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -4px 14px rgba(20,24,26,.05);
}
.tabbar-inner{display:flex;height:60px;}
.tab-item{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  color:var(--ink-300);text-decoration:none;font-size:10px;line-height:1.2;padding:0 4px;text-align:center;
  transition:color .18s ease;
}
.tab-item svg{width:22px;height:22px;stroke-width:1.6;}
.tab-item:hover{text-decoration:none;color:var(--brand-700);}
.tab-item.is-active{color:var(--brand-700);font-weight:600;}

@media (max-width:1200px){
  .footer-grid{grid-template-columns:1.3fr 1fr 1fr 1fr;}
}
@media (max-width:991px){
  .nav-links,.nav-actions{display:none;}
  .nav-toggle{display:block;}
  .site-header.is-open .nav-links{
    display:flex;flex-direction:column;align-items:flex-start;gap:2px;
    position:absolute;left:0;right:0;top:68px;
    background:#fff;border-bottom:1px solid var(--line);
    padding:12px 24px 20px;box-shadow:var(--shadow-1);
  }
  .site-header.is-open .nav-links a{
    width:100%;font-size:16px;padding:14px 0;border-bottom:1px solid var(--line);
  }
  .site-header.is-open .nav-links a::after{display:none;}
  .rel-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:30px;}
  .entry-content{padding:32px 26px 28px;font-size:16.5px;}
  .section-x{padding:64px 0;}
  .section-x.tight{padding:48px 0 64px;}
}
@media (max-width:767px){
  .article-hero h1{font-size:26px;}
  .article-hero .container-x{padding-top:28px;padding-bottom:30px;}
  .section-head h2{font-size:24px;}
  .entry-content h2{font-size:21px;}
  .entry-content h3{font-size:18px;}
}
@media (max-width:575px){
  body{padding-bottom:76px;}
  .container-x{padding-left:18px;padding-right:18px;}
  .tabbar-x{display:block;}
  .rel-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .entry-content{padding:24px 18px 22px;font-size:16px;}
  .inline-cta{padding:20px;flex-direction:column;align-items:flex-start;}
  .article-hero h1{font-size:23px;}
  .back-actions{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  .news-card:hover,.btn-x:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --brand-700:#0B6B62;--brand-500:#0F8A7E;--brand-300:#6FC7BC;--brand-050:#EAF1EF;
  --accent-500:#FF6B4A;--gold-500:#F2B53C;
  --ink-900:#14181A;--ink-700:#2E3639;--ink-500:#5A6569;--ink-300:#97A2A5;
  --line:#E2E0D9;--bg-0:#F7F5F0;--bg-1:#FFFFFF;--bg-dim:#F1EFEA;
  --dark-900:#10211E;--dark-700:#16302B;
  --r-card:16px;--r-btn:10px;--r-img:14px;--r-big:24px;
  --sh-1:0 1px 2px rgba(20,24,26,.04),0 8px 24px rgba(20,24,26,.06);
  --sh-2:0 2px 6px rgba(20,24,26,.06),0 16px 40px rgba(15,138,126,.14);
  --t:180ms ease;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font);font-size:16.5px;line-height:1.85;color:var(--ink-700);
  background:var(--bg-0);-webkit-font-smoothing:antialiased;
}
img,svg{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;transition:color var(--t),text-decoration-thickness var(--t)}
a:hover{color:var(--accent-500);text-decoration-thickness:2px}
h1,h2,h3,h4{color:var(--ink-900);margin:0;letter-spacing:.015em;font-weight:700;line-height:1.45}
p{margin:0 0 1em}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;box-shadow:0 0 0 3px rgba(15,138,126,.15)}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section-head{margin-bottom:34px}
.section-head h2{font-size:30px;line-height:1.45}
.section-head .sub{margin-top:10px;color:var(--ink-500);font-size:15.5px;max-width:720px}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--brand-700);margin-bottom:12px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:var(--bg-1);border-bottom:1px solid var(--line);transition:box-shadow var(--t)}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-inner{height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand-x{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--ink-900);text-decoration:none;letter-spacing:.01em}
.brand-x:hover{color:var(--ink-900);text-decoration:none}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--brand-500);display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto}
.brand-mark svg{width:20px;height:20px}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{position:relative;font-size:14.5px;font-weight:500;color:var(--ink-700);text-decoration:none;padding:6px 0}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--brand-500);transform:scaleX(0);transform-origin:left;transition:transform var(--t)}
.nav-links a:hover{color:var(--brand-700)}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--brand-700);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:18px}
.ghost-link{font-size:14px;color:var(--ink-500);text-decoration:none}
.ghost-link:hover{color:var(--brand-700)}
.nav-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;align-items:center;justify-content:center;position:relative;cursor:pointer}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{content:"";display:block;width:18px;height:2px;background:var(--ink-700);border-radius:2px;transition:transform var(--t),opacity var(--t)}
.nav-toggle span::before{transform:translateY(-6px)}
.nav-toggle span::after{transform:translateY(4px)}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{transform:translateY(0) rotate(45deg)}
body.nav-open .nav-toggle span::after{transform:translateY(-2px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn-x{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);border:1px solid transparent;font-weight:600;text-decoration:none;cursor:pointer;transition:transform var(--t),background var(--t),border-color var(--t),box-shadow var(--t),color var(--t);padding:13px 22px;font-size:15px}
.btn-x.sm{padding:9px 16px;font-size:14px}
.btn-x.lg{padding:15px 26px;font-size:16px}
.btn-x:hover{text-decoration:none;transform:translateY(-1px)}
.btn-x:active{transform:translateY(1px)}
.btn-main-x{background:var(--brand-500);color:#fff}
.btn-main-x:hover{background:var(--brand-700);color:#fff;box-shadow:var(--sh-1)}
.btn-accent-x{background:var(--accent-500);color:#fff}
.btn-accent-x:hover{background:#E8593A;color:#fff;box-shadow:var(--sh-1)}
.btn-line-x{background:#fff;border-color:var(--brand-500);color:var(--brand-700)}
.btn-line-x:hover{background:var(--brand-050);color:var(--brand-700)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;text-decoration:none;color:var(--brand-700)}
.link-arrow span{transition:transform var(--t)}
.link-arrow:hover{color:var(--accent-500);text-decoration:none}
.link-arrow:hover span{transform:translateX(4px)}
.badge-x{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;background:var(--brand-050);color:var(--brand-700);font-size:13px;font-weight:600;line-height:1.4}
.badge-x.plain{background:#fff;border:1px solid var(--line);color:var(--ink-500);font-weight:500}

/* ---------- hero ---------- */
.cat-hero{position:relative;background:var(--bg-0);border-bottom:1px solid var(--line);overflow:hidden}
.cat-hero::after{
  content:"";position:absolute;top:0;right:0;width:46%;height:100%;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center right;opacity:.13;pointer-events:none;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 65%);mask-image:linear-gradient(90deg,transparent,#000 65%);
}
.cat-hero .container-x{position:relative;z-index:1;padding-top:44px;padding-bottom:40px}
.crumb{font-size:14px;color:var(--ink-500);margin-bottom:18px}
.crumb a{color:var(--ink-500);text-decoration:none}
.crumb a:hover{color:var(--brand-700)}
.crumb .sep{margin:0 8px;color:var(--ink-300)}
.crumb .now{color:var(--brand-700);font-weight:600}
.cat-hero h1{font-size:38px;line-height:1.35;max-width:820px;margin:16px 0 18px}
.cat-hero h1 em{font-style:normal;color:var(--brand-700)}
.cat-hero .lede{max-width:760px;font-size:16.5px;color:var(--ink-500);margin:0}
.cat-hero .lede + .lede{margin-top:8px}
.anchor-row{display:flex;gap:10px;margin-top:26px;overflow-x:auto;padding-bottom:4px;scrollbar-width:thin}
.anchor-row a{
  flex:0 0 auto;padding:8px 16px;border-radius:999px;font-size:14px;font-weight:600;color:var(--ink-500);
  text-decoration:none;border:1px solid transparent;transition:background var(--t),color var(--t)
}
.anchor-row a:hover{color:var(--brand-700);background:var(--brand-050)}
.anchor-row a.is-on{background:var(--brand-050);color:var(--brand-700)}

/* ---------- layout ---------- */
.cat-layout{display:grid;grid-template-columns:1fr;gap:32px;align-items:start}
.group-stack{display:grid;gap:24px}
.group-card{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.group-card:hover{border-color:var(--brand-300);box-shadow:var(--sh-2)}
.group-card .g-head{display:flex;align-items:flex-start;gap:16px;padding:24px 26px 20px;border-bottom:1px solid var(--line)}
.g-num{font-size:13px;font-weight:700;color:var(--gold-500);letter-spacing:.12em;font-variant-numeric:tabular-nums;padding-top:6px}
.g-head h3{font-size:21px;margin-bottom:6px}
.g-head p{margin:0;font-size:14.5px;color:var(--ink-500)}
.item-row{display:grid;grid-template-columns:44px 1fr 24px;gap:14px;align-items:center;padding:17px 26px;border-top:1px solid var(--line);text-decoration:none;transition:background var(--t)}
.group-card .g-head + .item-row{border-top:0}
.item-row:first-of-type{border-top:0}
.item-row .i-num{font-size:13px;font-weight:700;color:var(--brand-300);font-variant-numeric:tabular-nums}
.item-row .i-body{display:block}
.item-row .i-name{display:block;font-size:16px;font-weight:600;color:var(--ink-900)}
.item-row .i-desc{display:block;font-size:14px;color:var(--ink-500);line-height:1.7;margin-top:2px}
.item-row .i-arrow{color:var(--ink-300);transition:transform var(--t),color var(--t);font-size:16px;line-height:1}
.item-row:hover{background:var(--brand-050);text-decoration:none}
.item-row:hover .i-name{color:var(--brand-700)}
.item-row:hover .i-arrow{color:var(--brand-700);transform:translateX(3px)}

.aside-sticky{position:sticky;top:92px;display:grid;gap:18px}
.side-card{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1)}
.side-card h3{font-size:15px;letter-spacing:.04em;margin-bottom:14px}
.toc-list{list-style:none;margin:0;padding:0;display:grid;gap:2px}
.toc-list a{display:flex;justify-content:space-between;gap:10px;font-size:14.5px;color:var(--ink-500);text-decoration:none;padding:9px 10px;border-radius:8px;transition:background var(--t),color var(--t)}
.toc-list a:hover{background:var(--brand-050);color:var(--brand-700)}
.toc-list a span{color:var(--ink-300);font-size:12.5px;font-variant-numeric:tabular-nums}
.mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:14px}
.mini-cell{background:var(--brand-050);border-radius:12px;padding:14px}
.mini-cell b{display:block;font-size:26px;font-weight:700;color:var(--brand-700);font-variant-numeric:tabular-nums;line-height:1.2}
.mini-cell span{font-size:13px;color:var(--ink-500)}
.side-note{font-size:13.5px;color:var(--ink-300);margin:0 0 14px;line-height:1.75}
.side-card .btn-x{width:100%}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;transition:transform var(--t),border-color var(--t),box-shadow var(--t)}
.step:hover{transform:translateY(-2px);border-color:var(--brand-300);box-shadow:var(--sh-2)}
.step .s-idx{font-size:13px;font-weight:700;color:var(--gold-500);letter-spacing:.14em;font-variant-numeric:tabular-nums}
.step h3{font-size:18px;margin:12px 0 8px}
.step p{margin:0;font-size:14.5px;color:var(--ink-500);line-height:1.8}

/* ---------- scenes ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene-card{background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;display:flex;flex-direction:column;transition:transform var(--t),border-color var(--t),box-shadow var(--t)}
.scene-card:hover{transform:translateY(-2px);border-color:var(--brand-300);box-shadow:var(--sh-2)}
.scene-card img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0}
.scene-body{padding:22px 24px 26px}
.scene-body h3{font-size:19px;margin-bottom:10px}
.scene-body p{margin:0;font-size:14.5px;color:var(--ink-500);line-height:1.8}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.scene-tags span{font-size:12.5px;padding:5px 11px;border-radius:999px;background:var(--bg-dim);color:var(--ink-500)}

/* ---------- faq ---------- */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{background:var(--bg-1);border:1px solid var(--line);border-radius:14px;margin-bottom:10px;overflow:hidden;transition:border-color var(--t),box-shadow var(--t)}
.faq-item:hover{border-color:var(--brand-300)}
.faq-item:has(.faq-q[aria-expanded="true"]){border-color:var(--brand-300);box-shadow:var(--sh-1)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;background:none;border:0;padding:20px 22px;text-align:left;font-size:17px;font-weight:600;color:var(--ink-900);cursor:pointer;transition:color var(--t)}
.faq-q:hover{color:var(--brand-700)}
.faq-q[aria-expanded="true"]{color:var(--brand-700)}
.faq-q .mark{flex:0 0 auto;width:22px;height:22px;position:relative}
.faq-q .mark::before,.faq-q .mark::after{content:"";position:absolute;background:var(--brand-500);border-radius:2px;transition:transform var(--t),opacity var(--t)}
.faq-q .mark::before{left:0;top:10px;width:22px;height:2px}
.faq-q .mark::after{left:10px;top:0;width:2px;height:22px}
.faq-q[aria-expanded="true"] .mark::after{transform:scaleY(0);opacity:0}
.faq-a{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--ink-500);border-left:3px solid var(--brand-500);margin-left:0}
.collapsing{transition:height 200ms ease}

/* ---------- cta ---------- */
.cta-band{background:var(--dark-900);border-radius:var(--r-big);padding:48px;display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.72);font-size:15.5px;margin:0}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
.cta-band .link-arrow{color:var(--brand-300)}
.cta-band .link-arrow:hover{color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-050);border-top:1px solid var(--line);margin-top:24px;padding:56px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
.footer-grid h4{font-size:14px;font-weight:700;letter-spacing:.04em;margin-bottom:14px}
.footer-grid p{font-size:14px;color:var(--ink-500);line-height:1.85;margin:14px 0 0}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:var(--ink-500);text-decoration:none}
.footer-links a:hover{color:var(--brand-700)}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;font-size:13.5px;color:var(--ink-500)}
.to-top{font-size:13.5px;color:var(--ink-500);text-decoration:none}
.to-top:hover{color:var(--brand-700)}

/* ---------- mobile tabbar ---------- */
.mobile-tabbar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:1040;background:#fff;border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}
.mobile-tabbar .tab-inner{display:grid;grid-template-columns:repeat(3,1fr);height:60px}
.mobile-tabbar a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:10.5px;line-height:1.2;text-align:center;color:var(--ink-500);text-decoration:none;padding:0 4px;transition:color var(--t)}
.mobile-tabbar a svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.mobile-tabbar a:hover{color:var(--brand-700)}
.mobile-tabbar a.is-active{color:var(--brand-700);font-weight:600}

@media (max-width:1199px){
  .aside-sticky{position:static}
  .cat-layout{grid-template-columns:1fr}
}
@media (min-width:1200px){
  .cat-layout{grid-template-columns:minmax(0,1fr) 304px}
}
@media (max-width:991px){
  .section{padding:56px 0}
  .section.tight{padding:48px 0}
  .section-head h2{font-size:24px}
  .cat-hero h1{font-size:28px}
  .cat-hero::after{width:70%;opacity:.09}
  .nav-toggle{display:inline-flex}
  .ghost-link{display:none}
  .nav-links{
    position:fixed;top:68px;left:0;right:0;height:calc(100vh - 68px);background:#fff;border-top:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;padding:16px 24px 32px;overflow-y:auto;
    transform:translateX(105%);transition:transform 200ms ease
  }
  body.nav-open .nav-links{transform:translateX(0)}
  .nav-links a{font-size:18px;font-weight:600;padding:18px 0;border-bottom:1px solid var(--line);color:var(--ink-900)}
  .nav-links a::after{display:none}
  .nav-links a.is-active{color:var(--brand-700)}
  .steps{grid-template-columns:1fr 1fr}
  .scene-grid{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;padding:32px;border-radius:20px}
  .cta-band .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr}
  .mobile-tabbar{display:block}
  body{padding-bottom:72px}
}
@media (max-width:575px){
  .container-x{padding:0 18px}
  .cat-hero .container-x{padding-top:32px;padding-bottom:32px}
  .cat-hero h1{font-size:26px}
  .cat-hero .lede{font-size:15.5px}
  .group-card .g-head{padding:20px 18px 16px}
  .item-row{grid-template-columns:34px 1fr 18px;gap:10px;padding:15px 18px}
  .steps{grid-template-columns:1fr}
  .cta-band{padding:26px 22px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
  .brand-x{font-size:17px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --brand-700:#0B6B62;
  --brand-500:#0F8A7E;
  --brand-300:#6FC7BC;
  --brand-050:#EAF1EF;
  --accent-500:#FF6B4A;
  --accent-050:#FFEDE8;
  --gold-500:#F2B53C;
  --ink-900:#14181A;
  --ink-700:#2E3639;
  --ink-500:#5A6569;
  --ink-300:#97A2A5;
  --line:#E2E0D9;
  --bg-0:#F7F5F0;
  --bg-1:#FFFFFF;
  --dark-900:#10211E;
  --dark-700:#16302B;
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --r-lg:24px;
  --shadow-1:0 1px 2px rgba(20,24,26,.04),0 8px 24px rgba(20,24,26,.06);
  --shadow-2:0 2px 6px rgba(20,24,26,.06),0 16px 40px rgba(15,138,126,.14);
  --sec-y:92px;
  --font-cn:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--bg-0);
  padding-bottom:0;
}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:.015em;}
h1{font-size:40px;line-height:1.35;}
h2{font-size:30px;line-height:1.45;}
h3{font-size:20px;line-height:1.5;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;transition:color .18s ease,text-decoration-thickness .18s ease;}
a:hover{color:var(--accent-500);text-decoration-thickness:2px;}
img{max-width:100%;display:block;border-radius:var(--r-img);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;box-shadow:0 0 0 3px rgba(15,138,126,.15);border-radius:8px;}
.container-x{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sec-y) 0;}
.section.tight{padding:64px 0;}
.section.soft{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.sec-head p{color:var(--ink-500);font-size:15px;max-width:640px;margin:12px 0 0;}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--brand-700);letter-spacing:.06em;margin-bottom:12px;}
.muted{color:var(--ink-500);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(160%) blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .18s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px;}
.brand-x{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--ink-900);text-decoration:none;letter-spacing:.01em;}
.brand-x:hover{color:var(--ink-900);text-decoration:none;}
.brand-mark{width:32px;height:32px;border-radius:10px;background:var(--brand-500);display:inline-flex;align-items:center;justify-content:center;flex:0 0 32px;}
.brand-mark svg{width:18px;height:18px;}
.nav-links{display:flex;align-items:center;gap:6px;}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:22px 14px;
  font-size:15px;font-weight:500;color:var(--ink-700);
  text-decoration:none;
  transition:color .18s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:14px;height:2px;
  background:var(--brand-500);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease;
}
.nav-links a:hover{color:var(--brand-700);text-decoration:none;}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--brand-700);font-weight:600;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:16px;}
.ghost-link{font-size:14px;font-weight:500;color:var(--ink-500);text-decoration:none;border-bottom:1px solid transparent;transition:color .18s ease,border-color .18s ease;}
.ghost-link:hover{color:var(--brand-700);border-color:var(--brand-300);text-decoration:none;}

/* 按钮 */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  border-radius:var(--r-btn);border:1px solid transparent;
  padding:0 22px;height:44px;cursor:pointer;text-decoration:none;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-x:hover{text-decoration:none;transform:translateY(-1px);}
.btn-x:active{transform:translateY(1px);}
.btn-x.sm{height:38px;padding:0 18px;font-size:14px;}
.btn-x.lg{height:52px;padding:0 26px;font-size:16px;}
.btn-x.block{width:100%;}
.btn-primary-x{background:var(--brand-500);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary-x:hover{background:var(--brand-700);color:#fff;}
.btn-accent-x{background:var(--accent-500);color:#fff;box-shadow:0 8px 20px rgba(255,107,74,.24);}
.btn-accent-x:hover{background:#EE5A38;color:#fff;}
.btn-ghost-x{background:var(--bg-1);color:var(--brand-700);border-color:var(--brand-300);}
.btn-ghost-x:hover{background:var(--brand-050);color:var(--brand-700);}
.btn-line-x{background:transparent;color:var(--brand-700);border-color:rgba(15,138,126,.4);}
.btn-line-x:hover{background:var(--brand-050);color:var(--brand-700);}
.nav-toggle{
  display:none;width:42px;height:38px;border:1px solid var(--line);background:var(--bg-1);
  border-radius:10px;position:relative;cursor:pointer;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:11px;right:11px;height:2px;background:var(--ink-700);border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle span{top:18px;}
.nav-toggle span::before{top:-6px;left:0;right:0;}
.nav-toggle span::after{top:6px;left:0;right:0;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;
  padding:52px 0 64px;
  background:
    linear-gradient(180deg,rgba(247,245,240,.94),rgba(247,245,240,.98)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cat-hero::after{
  content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:min(760px,86%);height:1px;background:linear-gradient(90deg,transparent,var(--brand-300),transparent);
}
.cat-hero .container-x{position:relative;z-index:2;text-align:center;}
.crumb{
  display:flex;justify-content:center;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:14px;color:var(--ink-500);margin-bottom:22px;
}
.crumb a{color:var(--ink-500);text-decoration:none;}
.crumb a:hover{color:var(--brand-700);}
.crumb .sep{color:var(--ink-300);}
.crumb .cur{color:var(--brand-700);font-weight:600;}
.cat-hero h1{margin:16px auto 18px;max-width:900px;}
.cat-lede{
  max-width:660px;margin:0 auto;color:var(--ink-500);font-size:17px;line-height:1.85;
}
.hero-facts{
  margin:34px auto 0;max-width:820px;
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.hero-facts .cell{padding:20px 16px;text-align:center;border-right:1px solid var(--line);}
.hero-facts .cell:last-child{border-right:0;}
.hero-facts .num{
  font-size:34px;font-weight:700;color:var(--brand-700);line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.hero-facts .num small{font-size:14px;font-weight:600;color:var(--ink-500);margin-left:2px;}
.hero-facts .lab{display:block;margin-top:6px;font-size:13px;color:var(--ink-500);}

.badge-x{
  display:inline-block;padding:6px 12px;border-radius:999px;
  background:var(--brand-050);color:var(--brand-700);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.badge-x.accent{background:var(--accent-050);color:#C8401F;}

/* ============ 锚点胶囊行 ============ */
.tabs-row{
  display:flex;gap:10px;overflow-x:auto;padding:4px 2px 14px;margin-bottom:22px;
  scrollbar-width:none;
}
.tabs-row::-webkit-scrollbar{display:none;}
.tabs-row a{
  flex:0 0 auto;padding:9px 18px;border-radius:999px;font-size:14px;font-weight:500;
  color:var(--ink-500);background:transparent;text-decoration:none;border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.tabs-row a:hover{background:var(--bg-1);border-color:var(--line);color:var(--brand-700);text-decoration:none;}
.tabs-row a.is-on{background:var(--brand-050);color:var(--brand-700);font-weight:600;}

/* ============ 文档两栏 ============ */
.doc-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:32px;align-items:start;}
.doc-group{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  padding:6px 28px 18px;margin-bottom:24px;box-shadow:var(--shadow-1);
}
.group-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 0 14px;border-bottom:1px solid var(--line);margin-bottom:6px;
}
.group-head h2{font-size:21px;display:flex;align-items:center;gap:10px;}
.group-head h2::before{content:"";width:4px;height:20px;border-radius:2px;background:var(--brand-500);display:inline-block;}
.group-head .note{font-size:13px;color:var(--ink-300);white-space:nowrap;}

.doc-list li{border-bottom:1px solid var(--line);}
.doc-list li:last-child{border-bottom:0;}
.doc-item{
  display:grid;grid-template-columns:52px minmax(0,1fr) auto 20px;
  align-items:center;gap:16px;
  padding:18px 12px;margin:0 -12px;border-radius:12px;
  text-decoration:none;color:inherit;
  transition:background .18s ease,transform .18s ease;
}
.doc-item:hover{background:var(--brand-050);text-decoration:none;transform:translateX(2px);}
.doc-no{
  font-size:18px;font-weight:700;color:var(--gold-500);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.doc-body strong{display:block;font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.5;}
.doc-body em{display:block;font-style:normal;font-size:14px;color:var(--ink-500);line-height:1.7;margin-top:4px;}
.doc-time{font-size:13px;color:var(--ink-300);white-space:nowrap;}
.doc-arrow{color:var(--brand-300);font-size:18px;transition:transform .18s ease,color .18s ease;}
.doc-item:hover .doc-arrow{transform:translateX(3px);color:var(--brand-700);}

/* 侧栏 */
.doc-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:92px;}
.side-card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-1);
}
.side-card h3{font-size:17px;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:2px;background:var(--brand-300);}
.side-actions{display:flex;flex-direction:column;gap:10px;}
.stat-mini{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.stat-mini .mini{
  background:var(--brand-050);border-radius:12px;padding:16px 14px;text-align:center;
}
.stat-mini .mini b{
  display:block;font-size:26px;font-weight:700;color:var(--brand-700);
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.stat-mini .mini span{font-size:13px;color:var(--ink-500);}
.side-tip{
  font-size:13.5px;color:var(--ink-500);line-height:1.8;
  background:var(--bg-1);border:1px dashed var(--line);border-radius:var(--r-card);
  padding:16px 18px;margin:0;
}

/* ============ 步骤流程 ============ */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.flow-card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.flow-card:hover{transform:translateY(-2px);border-color:var(--brand-300);box-shadow:var(--shadow-2);}
.flow-card .step{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;background:var(--brand-050);
  color:var(--brand-700);font-weight:700;font-size:16px;font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.flow-card h3{font-size:18px;margin-bottom:10px;}
.flow-card p{font-size:14.5px;color:var(--ink-500);line-height:1.8;}

/* ============ 速查卡 ============ */
.tip-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.tip-card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.tip-card:hover{transform:translateY(-2px);border-color:var(--brand-300);box-shadow:var(--shadow-2);}
.tip-card h3{font-size:18px;margin-bottom:8px;}
.tip-card .tagline{font-size:13px;color:var(--brand-700);font-weight:600;margin-bottom:12px;display:block;}
.tip-card p{font-size:14.5px;color:var(--ink-500);line-height:1.8;}
.tip-card ul{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.tip-card ul li{
  position:relative;padding-left:18px;font-size:14px;color:var(--ink-500);line-height:1.7;
}
.tip-card ul li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;
  background:var(--brand-300);
}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto;}
.acc .accordion-item{
  background:var(--bg-1);border:1px solid var(--line);border-radius:14px;
  margin-bottom:10px;overflow:hidden;box-shadow:none;
}
.acc .accordion-button{
  font-size:17px;font-weight:600;color:var(--ink-900);
  padding:20px 22px;background:var(--bg-1);box-shadow:none;border-radius:14px;
  display:flex;align-items:center;gap:14px;
}
.acc .accordion-button::before{
  content:"";width:3px;height:20px;border-radius:2px;background:transparent;flex:0 0 3px;
  transition:background .2s ease;
}
.acc .accordion-button:not(.collapsed){
  color:var(--brand-700);background:var(--brand-050);box-shadow:none;
}
.acc .accordion-button:not(.collapsed)::before{background:var(--brand-500);}
.acc .accordion-button:focus{box-shadow:none;border-color:var(--line);}
.acc .accordion-button::after{
  content:"+";background-image:none !important;
  width:26px;height:26px;flex:0 0 26px;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;line-height:1;color:var(--brand-500);font-weight:600;
  transition:transform .2s ease,color .2s ease;
}
.acc .accordion-button:not(.collapsed)::after{content:"−";transform:none;color:var(--brand-700);}
.acc .accordion-body{
  padding:6px 24px 22px;font-size:15px;line-height:1.85;color:var(--ink-500);
}
.acc .accordion-body strong{color:var(--ink-700);font-weight:600;}

/* ============ 深色转化条 ============ */
.cta-band{padding:0 0 var(--sec-y);}
.cta-box{
  background:var(--dark-900);border-radius:var(--r-lg);
  padding:56px 48px;color:#DCE7E4;
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
  gap:44px;align-items:center;
  background-image:radial-gradient(circle at 88% 12%,rgba(15,138,126,.42),transparent 58%);
}
.cta-box h2{color:#fff;font-size:30px;line-height:1.45;}
.cta-box .lead{color:#AFC4C0;font-size:15.5px;margin-top:14px;}
.cta-points{display:flex;flex-direction:column;gap:14px;margin-top:26px;}
.cta-points li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:#DCE7E4;line-height:1.7;}
.cta-points .dot{
  flex:0 0 22px;width:22px;height:22px;border-radius:50%;
  background:rgba(111,199,188,.18);color:var(--brand-300);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;margin-top:2px;
}
.cta-panel{
  background:var(--bg-1);border-radius:var(--r-card);padding:28px;color:var(--ink-700);
  box-shadow:var(--shadow-1);
}
.cta-panel h3{font-size:18px;margin-bottom:8px;}
.cta-panel p{font-size:14px;color:var(--ink-500);line-height:1.8;}
.cta-panel .stack{display:flex;flex-direction:column;gap:12px;margin-top:18px;}
.cta-panel .foot-note{font-size:13px;color:var(--ink-300);margin-top:14px;}

/* ============ 页脚 ============ */
.site-footer{
  background:#F1F3F1;border-top:1px solid var(--line);
  padding:64px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.site-footer h4{font-size:14px;font-weight:700;color:var(--ink-900);margin-bottom:16px;letter-spacing:.02em;}
.site-footer p{font-size:14px;color:var(--ink-500);line-height:1.8;margin-top:14px;max-width:300px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:var(--ink-500);text-decoration:none;transition:color .18s ease;}
.footer-links a:hover{color:var(--brand-700);text-decoration:none;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-300);
}
.to-top{
  font-size:13px;color:var(--ink-500);text-decoration:none;display:inline-flex;gap:6px;align-items:center;
}
.to-top:hover{color:var(--brand-700);text-decoration:none;}

/* ============ 移动底部 Tab ============ */
.mobile-tabs{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(255,255,255,.97);border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -6px 20px rgba(20,24,26,.05);
}
.mobile-tabs .inner{display:flex;height:60px;}
.mobile-tabs a{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10px;color:var(--ink-500);text-decoration:none;padding:0 4px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  transition:color .18s ease;
}
.mobile-tabs a svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.mobile-tabs a.is-active{color:var(--brand-700);font-weight:600;}
.mobile-tabs a:hover{text-decoration:none;color:var(--brand-700);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .doc-layout{grid-template-columns:minmax(0,1fr) 300px;gap:24px;}
  .tip-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991px){
  :root{--sec-y:64px;}
  body{padding-bottom:76px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  .nav-links{
    position:fixed;top:0;right:0;height:100vh;width:84%;max-width:340px;
    background:var(--bg-1);flex-direction:column;align-items:stretch;gap:0;
    padding:84px 22px 28px;transform:translateX(104%);
    transition:transform .24s ease;box-shadow:-18px 0 40px rgba(20,24,26,.12);
    overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-links a{font-size:17px;font-weight:600;padding:16px 6px;border-bottom:1px solid var(--line);}
  .nav-links a::after{display:none;}
  .nav-actions{display:none;}
  .nav-toggle{display:block;}
  .mobile-tabs{display:block;}
  .cat-hero{padding:34px 0 44px;}
  .hero-facts{grid-template-columns:repeat(2,1fr);}
  .hero-facts .cell:nth-child(2){border-right:0;}
  .hero-facts .cell:nth-child(1),.hero-facts .cell:nth-child(2){border-bottom:1px solid var(--line);}
  .doc-layout{grid-template-columns:minmax(0,1fr);}
  .doc-side{position:static;}
  .flow-grid{grid-template-columns:repeat(2,1fr);}
  .cta-box{grid-template-columns:minmax(0,1fr);padding:40px 26px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .tip-grid{grid-template-columns:1fr;}
  .doc-item{grid-template-columns:42px minmax(0,1fr) 18px;gap:12px;}
  .doc-time{display:none;}
  .doc-group{padding:4px 18px 12px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:575px){
  .container-x{padding:0 18px;}
  h1{font-size:26px;}
  h2{font-size:22px;}
  body{font-size:16px;}
  .flow-grid{grid-template-columns:1fr;}
  .hero-facts{grid-template-columns:1fr;}
  .hero-facts .cell{border-right:0;border-bottom:1px solid var(--line);}
  .hero-facts .cell:last-child{border-bottom:0;}
  .cta-box{padding:32px 20px;border-radius:20px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}