/* roulang page: index */
:root{
  --brand-900:#0C231D;
  --brand-700:#17473B;
  --brand-500:#2E7A63;
  --accent:#FF6A2B;
  --accent-soft:#FFEDE4;
  --bg:#F6F5F1;
  --surface:#FFFFFF;
  --line:#E4E2D9;
  --ink:#14201C;
  --ink-2:#55645E;
  --ink-3:#8B9791;
  --radius-card:14px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(12,35,29,.06),0 10px 28px -14px rgba(12,35,29,.22);
  --shadow-hover:0 14px 32px -12px rgba(12,35,29,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidebar-w:248px;
  --bs-primary:#17473B;
  --bs-body-bg:#F6F5F1;
  --bs-body-color:#14201C;
  --bs-border-radius:14px;
  --bs-link-color:#17473B;
  --bs-link-hover-color:#FF6A2B;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:80px;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand-700);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
img{max-width:100%;display:block;}
h1,h2,h3,h4{color:var(--ink);margin:0;letter-spacing:.01em;}
p{margin:0 0 18px;}
ul,ol{margin:0 0 18px;padding-left:1.4em;}
:focus-visible{outline:3px solid rgba(255,106,43,.35);outline-offset:2px;border-radius:6px;}
.container-x{max-width:1200px;margin:0 auto;padding:0 40px;}
.num{font-variant-numeric:tabular-nums;letter-spacing:-.02em;}

/* ---------- 侧栏 App Shell ---------- */
.shell-sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--brand-900);
  border-right:1px solid rgba(255,255,255,.08);
  padding:22px 18px 24px;
  display:flex;flex-direction:column;
  overflow-y:auto;z-index:1040;
}
.brand{display:block;padding:6px 10px 20px;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  display:block;color:#fff;font-size:26px;font-weight:700;line-height:1.2;letter-spacing:.06em;
}
.brand-sub{
  display:block;color:rgba(255,255,255,.66);font-size:12.5px;line-height:1.7;margin-top:6px;letter-spacing:.02em;
}
.side-nav{display:flex;flex-direction:column;gap:6px;padding-top:6px;border-top:1px solid rgba(255,255,255,.08);}
.side-link{
  position:relative;display:flex;align-items:center;min-height:44px;
  padding:0 14px;border-radius:var(--radius-btn);
  color:rgba(255,255,255,.72);font-size:15px;font-weight:500;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.side-link:hover{background:rgba(255,255,255,.08);color:#fff;text-decoration:none;}
.side-link.active{background:rgba(255,255,255,.10);color:#fff;font-weight:600;}
.side-link.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:3px;background:var(--accent);
}
.side-foot{margin-top:auto;padding-top:22px;}
.side-note{color:rgba(255,255,255,.55);font-size:12.5px;line-height:1.7;margin:12px 0 0;}

/* ---------- 按钮 ---------- */
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border:none;border-radius:var(--radius-btn);
  background:var(--accent);color:#fff;font-size:15px;font-weight:600;
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  cursor:pointer;
}
.btn-accent:hover{background:#e85a1c;color:#fff;text-decoration:none;box-shadow:0 10px 22px -12px rgba(255,106,43,.9);}
.btn-accent:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  border:1.5px solid var(--brand-900);background:transparent;color:var(--brand-900);
  font-size:15px;font-weight:600;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.btn-ghost:hover{background:var(--brand-900);color:#fff;text-decoration:none;}
.btn-ghost:active{transform:translateY(1px);}
.btn-ghost-light{
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  border:1.5px solid rgba(255,255,255,.4);background:transparent;color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-weight:600;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.btn-ghost-light:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;text-decoration:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14.5px;color:var(--brand-700);}
.link-arrow svg{transition:transform .2s var(--ease);}
.link-arrow:hover{color:var(--accent);text-decoration:none;}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- 徽章 ---------- */
.badge-soft{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;border-radius:999px;background:var(--accent-soft);
  color:#B8430E;font-size:13px;font-weight:600;letter-spacing:.02em;
}
.badge-cat{
  display:inline-block;padding:4px 10px;border-radius:6px;
  background:var(--brand-700);color:#fff;font-size:12.5px;font-weight:600;
}
.badge-tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);font-size:13.5px;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.badge-tag:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft);text-decoration:none;}

/* ---------- 主区域 ---------- */
.shell-main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}
.topbar{
  height:56px;display:flex;align-items:center;justify-content:space-between;
  padding:0 40px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.55);
}
.crumb{font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:8px;}
.crumb a{color:var(--ink-2);}
.crumb a:hover{color:var(--accent);}
.topbar-note{font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:8px;}
.dot-live{width:7px;height:7px;border-radius:50%;background:var(--brand-500);display:inline-block;}

.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:1030;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 6px 18px -14px rgba(12,35,29,.5);
  align-items:center;justify-content:space-between;padding:0 14px;
}
.mobile-bar .brand-mini{color:var(--brand-900);font-weight:700;font-size:16px;line-height:1.2;}
.mobile-bar .brand-mini small{display:block;font-size:11px;color:var(--ink-3);font-weight:500;letter-spacing:.02em;}
.burger{
  width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;
  display:flex;align-items:center;justify-content:center;gap:4px;flex-direction:column;
}
.burger span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;}
.drawer{background:var(--brand-900);color:#fff;width:84%;max-width:320px;}
.drawer .offcanvas-body{padding:18px;}
.drawer .brand{padding:8px 6px 18px;}

/* ---------- Hero ---------- */
.hero{padding:52px 0 12px;}
.hero-grid{display:grid;grid-template-columns:1.32fr 1fr;gap:44px;align-items:center;}
.hero h1{font-size:clamp(30px,3.6vw,46px);line-height:1.24;font-weight:700;margin:18px 0 16px;}
.hero .lede{font-size:17px;line-height:1.85;color:var(--ink-2);margin-bottom:26px;max-width:34em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.fact-row{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line);padding-top:18px;}
.fact-row span{
  font-size:13.5px;color:var(--ink-2);padding:0 16px;border-left:1px solid var(--line);
}
.fact-row span:first-child{padding-left:0;border-left:none;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;
  box-shadow:var(--shadow-sm);
}
.hero-stat{
  position:absolute;right:16px;bottom:-18px;background:#fff;border-radius:14px;
  padding:16px 20px;box-shadow:var(--shadow-hover);min-width:180px;
}
.hero-stat .n{font-size:34px;font-weight:700;color:var(--brand-700);line-height:1.1;font-variant-numeric:tabular-nums;}
.hero-stat .n em{font-style:normal;color:var(--accent);font-size:18px;margin-left:2px;}
.hero-stat .t{font-size:12.5px;color:var(--ink-3);margin-top:4px;}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;}
.section-head h2{font-size:clamp(24px,2.4vw,32px);line-height:1.32;font-weight:700;position:relative;padding-left:16px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:8px;width:6px;height:22px;border-radius:3px;background:var(--accent);
}
.section-head p{margin:8px 0 0;color:var(--ink-2);font-size:15px;max-width:52em;}

/* ---------- 指标看板 ---------- */
.metrics{
  background:var(--brand-900);border-radius:var(--radius-lg);
  padding:38px 40px;color:#fff;display:grid;grid-template-columns:repeat(4,1fr);gap:0;
}
.metric{padding:0 24px;border-left:1px solid rgba(255,255,255,.14);}
.metric:first-child{border-left:none;padding-left:0;}
.metric .n{font-size:clamp(32px,4vw,50px);font-weight:700;line-height:1.05;color:#fff;font-variant-numeric:tabular-nums;}
.metric .n em{font-style:normal;font-size:20px;color:var(--accent);margin-left:4px;}
.metric .t{margin-top:8px;font-size:14px;color:rgba(255,255,255,.7);line-height:1.7;}
.metrics-note{margin:14px 0 0;font-size:12.5px;color:var(--ink-3);}

/* ---------- Bento 服务矩阵 ---------- */
.bento{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.bento-wide{
  grid-column:span 2;position:relative;border-radius:var(--radius-card);overflow:hidden;
  min-height:230px;display:flex;align-items:flex-end;color:#fff;
  background:linear-gradient(180deg,rgba(12,35,29,.35),rgba(12,35,29,.82)),url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
  padding:32px;transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.bento-wide:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);color:#fff;text-decoration:none;}
.bento-wide h3{color:#fff;font-size:22px;font-weight:700;margin-bottom:8px;}
.bento-wide p{color:rgba(255,255,255,.78);font-size:14.5px;margin:0;max-width:40em;}
.bento-wide .go{margin-top:16px;}
.bento-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-sm);position:relative;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  display:flex;flex-direction:column;
}
.bento-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--accent);}
.bento-card .idx{
  font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.08em;margin-bottom:10px;
  font-variant-numeric:tabular-nums;
}
.bento-card h3{font-size:19px;line-height:1.5;font-weight:600;margin-bottom:10px;}
.bento-card p{font-size:14.5px;color:var(--ink-2);line-height:1.8;margin:0 0 18px;}
.bento-card .go{margin-top:auto;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;}
.bento-card:hover .go{color:var(--accent);}

/* ---------- 对比 ---------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.compare-card{border-radius:var(--radius-card);padding:28px;border:1px solid var(--line);background:#fff;}
.compare-card.alt{background:var(--accent-soft);border-color:#FFD8C6;}
.compare-card h3{font-size:18px;font-weight:700;margin-bottom:6px;}
.compare-card .sub{font-size:13.5px;color:var(--ink-3);margin-bottom:22px;}
.bar-row{margin-bottom:16px;}
.bar-row .lab{display:flex;justify-content:space-between;font-size:14px;color:var(--ink-2);margin-bottom:6px;}
.bar-row .lab b{color:var(--ink);font-weight:600;font-variant-numeric:tabular-nums;}
.bar{height:8px;border-radius:8px;background:#EDEBE3;overflow:hidden;}
.bar i{display:block;height:100%;border-radius:8px;background:var(--brand-500);}
.compare-card.alt .bar i{background:var(--accent);}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--accent);}
.news-thumb{position:relative;display:block;overflow:hidden;}
.news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-thumb .badge-cat{position:absolute;left:12px;top:12px;}
.news-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.news-body h3{font-size:17px;line-height:1.55;font-weight:600;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body h3 a{color:var(--ink);}
.news-body h3 a:hover{color:var(--accent);text-decoration:none;}
.news-body p{font-size:14px;color:var(--ink-2);line-height:1.8;margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);}
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:40px 28px;text-align:center;color:var(--ink-2);
}
.empty-state .ic{width:48px;height:48px;margin:0 auto 14px;border-radius:12px;background:var(--accent-soft);
  display:flex;align-items:center;justify-content:center;color:var(--accent);}
.empty-state p{margin:0 0 16px;font-size:15px;}

/* ---------- 时间轴 ---------- */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative;}
.tl-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-sm);position:relative;}
.tl-item .step{
  width:34px;height:34px;border-radius:10px;background:var(--brand-900);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.tl-item h3{font-size:16.5px;font-weight:600;margin-bottom:8px;}
.tl-item p{font-size:14px;color:var(--ink-2);line-height:1.8;margin:0;}

/* ---------- 环境支持 ---------- */
.support{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.support-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-sm);}
.support-item .ic{
  width:42px;height:42px;border-radius:11px;background:var(--accent-soft);color:var(--accent);
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.support-item h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.support-item p{font-size:14.5px;color:var(--ink-2);line-height:1.8;margin:0;}

/* ---------- FAQ ---------- */
.accordion-item{
  border:1px solid var(--line);border-radius:var(--radius-card)!important;
  background:#fff;margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow-sm);
}
.accordion-button{
  background:#fff;color:var(--ink);font-size:17px;font-weight:600;line-height:1.6;
  padding:20px 22px;border-radius:var(--radius-card)!important;box-shadow:none!important;
  border-left:3px solid transparent;
}
.accordion-button:not(.collapsed){
  background:#fff;color:var(--brand-700);border-left-color:var(--accent);
}
.accordion-button::after{
  background-image:none;
  width:12px;height:12px;border-right:2px solid var(--ink-3);border-bottom:2px solid var(--ink-3);
  transform:rotate(45deg);margin-top:-6px;transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.accordion-button:not(.collapsed)::after{transform:rotate(-135deg);border-color:var(--accent);}
.accordion-body{padding:18px 22px 22px;background:var(--bg);color:var(--ink-2);font-size:15px;line-height:1.9;}
.accordion-body p:last-child{margin-bottom:0;}

/* ---------- 表单 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;}
.contact-copy h2{font-size:clamp(24px,2.4vw,32px);line-height:1.32;font-weight:700;margin-bottom:16px;}
.tick-list{list-style:none;padding:0;margin:0 0 20px;}
.tick-list li{position:relative;padding-left:26px;margin-bottom:12px;color:var(--ink-2);font-size:15px;line-height:1.8;}
.tick-list li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:8px;
  border-left:2px solid var(--brand-500);border-bottom:2px solid var(--brand-500);transform:rotate(-45deg);
}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-sm);}
.form-label{font-size:14px;color:var(--ink-2);font-weight:600;margin-bottom:6px;}
.form-label .req{color:var(--accent);margin-left:4px;}
.form-control,.form-select{
  height:44px;border-radius:var(--radius-btn);border:1px solid var(--line);
  font-size:15px;color:var(--ink);background:#fff;
}
textarea.form-control{height:auto;min-height:96px;padding-top:10px;}
.form-control:focus,.form-select:focus{
  border-color:var(--brand-700);box-shadow:0 0 0 3px rgba(255,106,43,.22);outline:none;
}
.form-note{font-size:12.5px;color:var(--ink-3);line-height:1.75;margin:14px 0 0;}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--brand-900);border-radius:var(--radius-lg);padding:38px 40px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);font-weight:700;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.72);margin:0;font-size:15px;max-width:44em;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);margin-top:56px;padding:48px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:36px;}
.footer-brand .brand-mark{font-size:22px;}
.footer-brand .brand-sub{color:rgba(255,255,255,.6);}
.footer-brand p{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.55);margin:16px 0 0;max-width:26em;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px;}
.footer-col a,.footer-col li{display:block;font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.68);margin-bottom:8px;}
.footer-col a:hover{color:var(--accent);}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-note{background:rgba(255,255,255,.06);border-radius:12px;padding:14px 16px;font-size:13px;line-height:1.8;color:rgba(255,255,255,.6);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:18px 0 26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1399.98px){
  .container-x{padding:0 32px;}
  .topbar{padding:0 32px;}
}
@media (max-width:1199.98px){
  .hero-grid{grid-template-columns:1.2fr 1fr;gap:32px;}
  .metric{padding:0 16px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .timeline{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991.98px){
  .shell-sidebar{display:none!important;}
  .shell-main{margin-left:0;padding-top:60px;}
  .mobile-bar{display:flex;}
  .topbar{display:none;}
  .container-x{padding:0 22px;}
  .hero{padding:32px 0 8px;}
  .hero-grid{grid-template-columns:1fr;gap:30px;}
  .hero-figure{order:-1;}
  .hero-figure img{aspect-ratio:auto;height:240px;}
  .hero-stat{bottom:-14px;right:12px;padding:12px 16px;min-width:150px;}
  .hero-stat .n{font-size:26px;}
  .metrics{grid-template-columns:repeat(2,1fr);gap:26px 0;padding:30px 24px;}
  .metric:nth-child(3){border-left:none;padding-left:0;}
  .metric:nth-child(odd){border-left:none;padding-left:0;}
  .metric{padding:0 12px;}
  .bento{grid-template-columns:1fr;}
  .bento-wide{grid-column:span 1;min-height:200px;padding:24px;}
  .compare{grid-template-columns:1fr;}
  .support{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .cta-band{padding:28px 24px;}
  .section{padding:40px 0;}
}
@media (max-width:767.98px){
  .news-grid{grid-template-columns:1fr;}
  .timeline{grid-template-columns:1fr;}
  .metrics{grid-template-columns:1fr;}
  .metric{border-left:none!important;padding-left:0!important;padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.12);}
  .metric:last-child{border-bottom:none;padding-bottom:0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .fact-row span{display:block;width:100%;border-left:none;padding:0 0 6px;}
  .hero-actions .btn-accent,.hero-actions .btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  body{font-size:15.5px;}
}
@media (max-width:519.98px){
  .container-x{padding:0 16px;}
  .hero h1{font-size:28px;}
  .hero-figure img{height:210px;}
  .form-card{padding:20px;}
  .metric .n{font-size:34px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
}

/* roulang page: article */
:root{
  --brand-900:#0C231D;
  --brand-700:#17473B;
  --brand-500:#2E7A63;
  --accent:#FF6A2B;
  --accent-soft:#FFEDE4;
  --bg:#F6F5F1;
  --surface:#FFFFFF;
  --line:#E4E2D9;
  --ink:#14201C;
  --ink-2:#55645E;
  --ink-3:#8B9791;
  --radius-card:14px;
  --radius-block:20px;
  --radius-btn:10px;
  --shadow:0 1px 2px rgba(12,35,29,.06), 0 10px 28px -14px rgba(12,35,29,.22);
  --shadow-hover:0 14px 32px -12px rgba(12,35,29,.26);
  --t:200ms cubic-bezier(.2,.7,.3,1);

  --bs-primary:#17473B;
  --bs-body-bg:#F6F5F1;
  --bs-body-color:#14201C;
  --bs-border-radius:14px;
  --bs-link-color:#17473B;
  --bs-link-hover-color:#FF6A2B;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:.01em;font-weight:700;}
p{margin:0 0 18px;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(255,106,43,.35);outline-offset:2px;}
.num{font-family:"DIN Alternate","Barlow",system-ui,sans-serif;font-variant-numeric:tabular-nums;letter-spacing:-.02em;}

/* ---------- 侧栏 ---------- */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:248px;
  background:var(--brand-900);
  border-right:1px solid rgba(255,255,255,.08);
  display:flex;flex-direction:column;
  padding:0 18px 24px;
  z-index:1030;
}
.brand-box{
  height:72px;display:flex;flex-direction:column;justify-content:center;
  border-bottom:1px solid rgba(255,255,255,.10);
  margin-bottom:18px;
}
.brand-mark{color:#fff;font-size:19px;font-weight:700;letter-spacing:.06em;line-height:1.25;}
.brand-sub{color:rgba(255,255,255,.60);font-size:12px;letter-spacing:.04em;line-height:1.6;}
.side-nav{display:flex;flex-direction:column;gap:4px;}
.side-link{
  display:flex;align-items:center;
  min-height:44px;padding:10px 12px;
  border-radius:10px;
  color:rgba(255,255,255,.72);
  font-size:14.5px;line-height:1.5;
  border-left:3px solid transparent;
  transition:background var(--t),color var(--t),border-color var(--t);
}
.side-link:hover,.side-link:focus{
  background:rgba(255,255,255,.08);color:#fff;text-decoration:none;
}
.side-link.active{
  background:rgba(255,255,255,.10);
  border-left-color:var(--accent);
  color:#fff;font-weight:600;
}
.side-divider{height:1px;background:rgba(255,255,255,.10);margin:22px 0;}
.side-foot{margin-top:auto;}
.btn-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  width:100%;min-height:46px;padding:11px 20px;
  background:var(--accent);color:#fff;
  border:none;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  transition:background var(--t),transform var(--t),box-shadow var(--t);
}
.btn-cta:hover{background:#e85c20;color:#fff;text-decoration:none;box-shadow:0 10px 24px -12px rgba(255,106,43,.9);}
.btn-cta:active{transform:translateY(1px);}
.side-hint{color:rgba(255,255,255,.55);font-size:12px;line-height:1.7;margin:12px 0 0;}

/* ---------- 移动顶栏 ---------- */
.mobile-topbar{
  display:none;position:sticky;top:0;z-index:1040;
  height:60px;align-items:center;gap:12px;
  padding:0 14px;background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(12,35,29,.06);
}
.hamburger{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:10px;color:var(--brand-900);
}
.hamburger svg{width:22px;height:22px;}
.mobile-brand{display:flex;flex-direction:column;line-height:1.2;}
.mobile-brand .mb-1{font-size:15px;font-weight:700;color:var(--brand-900);}
.mobile-brand .mb-2{font-size:10.5px;color:var(--ink-3);letter-spacing:.02em;}
.btn-mini{
  margin-left:auto;background:var(--accent);color:#fff;border-radius:9px;
  font-size:13px;font-weight:600;padding:9px 14px;min-height:40px;display:inline-flex;align-items:center;
}
.btn-mini:hover{background:#e85c20;color:#fff;text-decoration:none;}
.offcanvas.mobile-nav{background:var(--brand-900);color:#fff;width:84%;max-width:320px;padding:20px 18px;}
.offcanvas.mobile-nav .btn-close{filter:invert(1) grayscale(1) brightness(2);}
.offcanvas.mobile-nav .brand-box{border-bottom-color:rgba(255,255,255,.10);}

/* ---------- 主区域 ---------- */
.main-area{margin-left:248px;min-height:100vh;display:flex;flex-direction:column;}
.toolbar{
  height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 36px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.72);
  backdrop-filter:blur(6px);
}
.crumbs{font-size:13px;color:var(--ink-3);line-height:1.6;display:flex;flex-wrap:wrap;gap:6px;align-items:center;}
.crumbs a{color:var(--ink-3);}
.crumbs a:hover{color:var(--accent);}
.crumbs .sep{color:#c8c5b9;}
.crumbs .cur{color:var(--ink-2);}
.toolbar-tip{font-size:12.5px;color:var(--ink-3);white-space:nowrap;}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 36px;}

/* ---------- 文章头 ---------- */
.article-hero{padding:40px 0 8px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent-soft);color:#B84A12;
  font-size:12.5px;font-weight:600;
  padding:5px 12px;border-radius:999px;margin-bottom:16px;
}
.article-title{
  font-size:38px;line-height:1.26;font-weight:700;
  max-width:900px;letter-spacing:.01em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
  margin-top:18px;font-size:13.5px;color:var(--ink-3);
}
.article-meta .dot{width:1px;height:13px;background:var(--line);display:inline-block;}
.article-meta .cat{color:var(--brand-700);font-weight:600;}
.hero-rule{height:1px;background:var(--line);margin:26px 0 0;}

/* ---------- 双栏 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 288px;
  gap:44px;padding:34px 0 10px;align-items:start;
}
.prose{min-width:0;}
.prose h2{
  font-size:28px;line-height:1.35;margin:36px 0 14px;
  border-left:6px solid var(--accent);padding-left:14px;
}
.prose h3{font-size:20px;line-height:1.5;font-weight:600;margin:26px 0 10px;}
.prose p{font-size:17px;line-height:1.95;margin:0 0 19px;}
.prose p:first-of-type{font-weight:500;color:var(--ink);}
.prose ul,.prose ol{padding-left:1.4em;margin:0 0 18px;}
.prose li{margin-bottom:8px;line-height:1.9;}
.prose img{width:100%;border-radius:12px;margin:22px 0;object-fit:cover;}
.prose figure{margin:22px 0;}
.prose figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:8px;}
.prose blockquote{
  border-left:3px solid var(--accent);background:var(--bg);
  padding:20px;border-radius:0 12px 12px 0;margin:22px 0;color:var(--ink-2);
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;}
.prose a:hover{color:var(--accent);}
.prose table{
  display:block;overflow-x:auto;width:100%;
  border-collapse:collapse;border:1px solid var(--line);border-radius:12px;
  margin:22px 0;font-size:15px;
}
.prose th{background:var(--bg);text-align:left;font-weight:600;}
.prose th,.prose td{padding:12px 14px;border-bottom:1px solid var(--line);white-space:nowrap;}
.prose strong{color:var(--brand-900);}
.prose hr{border:none;border-top:1px solid var(--line);margin:32px 0;}

/* ---------- 空态 ---------- */
.empty-state{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:44px 32px;text-align:center;box-shadow:var(--shadow);
}
.empty-state svg{width:40px;height:40px;color:var(--brand-500);margin:0 auto 14px;display:block;}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:20px;}

/* ---------- 右栏 ---------- */
.aside-stack{display:flex;flex-direction:column;gap:20px;position:sticky;top:24px;}
.widget{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;box-shadow:var(--shadow);
}
.widget h3{font-size:15px;font-weight:700;margin-bottom:12px;display:flex;align-items:center;gap:8px;}
.widget h3::before{content:"";width:4px;height:16px;background:var(--accent);border-radius:2px;display:inline-block;}
.widget p{font-size:13.5px;line-height:1.8;color:var(--ink-2);margin:0 0 12px;}
.widget p:last-child{margin-bottom:0;}
.widget-accent{background:var(--accent-soft);border-color:#FAD4C0;}
.widget-accent h3::before{background:#B84A12;}
.mini-list{list-style:none;padding:0;margin:0;}
.mini-list li{border-top:1px solid var(--line);}
.mini-list li:first-child{border-top:none;}
.mini-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 0;font-size:14px;color:var(--ink);line-height:1.55;
}
.mini-list a:hover{color:var(--accent);text-decoration:none;}
.mini-list .arrow{color:var(--ink-3);transition:transform var(--t),color var(--t);}
.mini-list a:hover .arrow{transform:translateX(4px);color:var(--accent);}

/* ---------- 标签 / 返回 ---------- */
.article-foot{
  margin-top:36px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:12px 16px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;
  background:var(--bg);border:1px solid var(--line);color:var(--ink-2);
  border-radius:999px;padding:5px 13px;font-size:12.5px;
}
.btn-outline{
  display:inline-flex;align-items:center;gap:8px;
  min-height:46px;padding:10px 22px;
  border:1.5px solid var(--brand-900);border-radius:var(--radius-btn);
  color:var(--brand-900);background:transparent;font-size:14.5px;font-weight:600;
  transition:background var(--t),color var(--t),transform var(--t);
}
.btn-outline:hover{background:var(--brand-900);color:#fff;text-decoration:none;}
.btn-outline:active{transform:translateY(1px);}
.btn-outline .arrow{transition:transform var(--t);}
.btn-outline:hover .arrow{transform:translateX(4px);}
.foot-actions{margin-left:auto;}

/* ---------- 相关推荐 ---------- */
.related{padding:56px 0 8px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px;}
.section-head h2{font-size:28px;line-height:1.32;display:flex;align-items:center;gap:12px;}
.section-head h2::before{content:"";width:6px;height:22px;background:var(--accent);border-radius:3px;display:inline-block;}
.section-head .more{font-size:14px;font-weight:600;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px;}
.section-head .more:hover{color:var(--accent);text-decoration:none;}
.section-head .more:hover .arrow{transform:translateX(4px);}
.section-head .more .arrow{transition:transform var(--t);}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.rec-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  display:flex;flex-direction:column;
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--accent);}
.rec-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease;}
.rec-card:hover .rec-thumb img{transform:scale(1.04);}
.badge-cat{
  position:absolute;left:12px;top:12px;
  background:var(--brand-700);color:#fff;font-size:12px;font-weight:600;
  padding:4px 11px;border-radius:6px;
}
.rec-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:8px;flex:1;}
.rec-body h3{font-size:17px;line-height:1.5;font-weight:600;}
.rec-body p{font-size:13.5px;line-height:1.8;color:var(--ink-2);margin:0;}
.rec-link{
  margin-top:auto;padding-top:10px;font-size:13.5px;font-weight:600;color:var(--brand-700);
  display:inline-flex;align-items:center;gap:6px;
}
.rec-card:hover .rec-link{color:var(--accent);}
.rec-link .arrow{transition:transform var(--t);}
.rec-card:hover .rec-link .arrow{transform:translateX(4px);}

/* ---------- CTA ---------- */
.cta-band{padding:56px 0 8px;}
.cta-inner{
  background:var(--brand-900);color:#fff;border-radius:var(--radius-block);
  padding:38px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--shadow);
}
.cta-inner h2{color:#fff;font-size:26px;line-height:1.35;margin-bottom:8px;}
.cta-inner p{color:rgba(255,255,255,.72);font-size:14.5px;margin:0;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;min-height:46px;padding:10px 22px;
  border:1.5px solid rgba(255,255,255,.45);border-radius:var(--radius-btn);
  color:#fff;font-size:14.5px;font-weight:600;transition:background var(--t),border-color var(--t);
}
.btn-ghost:hover{background:rgba(255,255,255,.10);border-color:#fff;color:#fff;text-decoration:none;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);margin-top:64px;padding:48px 0 22px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand .brand-mark{display:block;font-size:18px;margin-bottom:2px;}
.footer-brand .brand-sub{display:block;color:rgba(255,255,255,.55);font-size:12px;margin-bottom:14px;}
.footer-brand p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.60);margin:0;}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:14px;}
.footer-col a{display:block;color:rgba(255,255,255,.72);font-size:13.5px;line-height:1.8;padding:5px 0;transition:color var(--t);}
.footer-col a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.footer-note{font-size:13px;line-height:1.85;color:rgba(255,255,255,.55);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;
  padding-top:20px;font-size:12.5px;color:rgba(255,255,255,.50);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .aside-stack{position:static;flex-direction:row;flex-wrap:wrap;}
  .aside-stack .widget{flex:1 1 260px;}
}
@media (max-width:991.98px){
  .sidebar{display:none;}
  .main-area{margin-left:0;}
  .mobile-topbar{display:flex;}
  .toolbar{display:none;}
  .container-x{padding:0 20px;}
  .article-hero{padding:28px 0 6px;}
  .article-title{font-size:30px;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:30px 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
}
@media (max-width:767.98px){
  .card-grid{grid-template-columns:1fr;}
  .article-title{font-size:27px;}
  .prose h2{font-size:23px;}
  .prose p{font-size:16px;}
  .aside-stack{flex-direction:column;}
  .btn-outline,.foot-actions{width:100%;justify-content:center;margin-left:0;}
  .footer-grid{grid-template-columns:1fr;}
  .section-head{flex-direction:column;align-items:flex-start;}
  .section-head h2{font-size:24px;}
}
@media (max-width:520px){
  .container-x{padding:0 16px;}
  .article-title{font-size:24px;}
  .article-meta{font-size:12.5px;}
  .cta-inner h2{font-size:21px;}
  .site-footer{margin-top:48px;padding-top:36px;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category1 */
:root{
  --brand-900:#0C231D;
  --brand-700:#17473B;
  --brand-500:#2E7A63;
  --accent:#FF6A2B;
  --accent-soft:#FFEDE4;
  --bg:#F6F5F1;
  --surface:#FFFFFF;
  --line:#E4E2D9;
  --ink:#14201C;
  --ink-2:#55645E;
  --ink-3:#8B9791;
  --radius-card:14px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow:0 1px 2px rgba(12,35,29,.06), 0 10px 28px -14px rgba(12,35,29,.22);
  --shadow-hover:0 14px 32px -12px rgba(12,35,29,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidebar-w:248px;
  --bs-primary:#17473B;
  --bs-body-bg:#F6F5F1;
  --bs-body-color:#14201C;
  --bs-border-radius:14px;
  --bs-link-color:#17473B;
  --bs-link-hover-color:#FF6A2B;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:80px;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(255,106,43,.35);outline-offset:2px;border-radius:6px;}

/* ---------- 布局骨架 ---------- */
.app-shell{display:flex;min-height:100vh;}
.sidebar{
  position:fixed;top:0;left:0;z-index:1040;
  width:var(--sidebar-w);height:100vh;
  background:var(--brand-900);
  border-right:1px solid rgba(255,255,255,.08);
  padding:0 14px 22px;
  display:flex;flex-direction:column;
}
.brand{
  height:72px;display:flex;flex-direction:column;justify-content:center;
  padding:0 10px;text-decoration:none;gap:2px;
}
.brand-mark{font-size:21px;font-weight:700;color:#fff;letter-spacing:.10em;line-height:1.2;}
.brand-sub{font-size:12px;color:rgba(255,255,255,.55);letter-spacing:.04em;line-height:1.4;}
.side-nav{display:flex;flex-direction:column;gap:6px;margin-top:14px;}
.side-link{
  position:relative;display:flex;align-items:center;
  min-height:44px;padding:10px 14px;border-radius:10px;
  font-size:14.5px;line-height:1.45;color:rgba(255,255,255,.72);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.side-link:hover{background:rgba(255,255,255,.08);color:#fff;}
.side-link.active{background:rgba(255,255,255,.10);color:#fff;font-weight:600;}
.side-link.active::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  border-radius:2px;background:var(--accent);
}
.side-sep{height:1px;background:rgba(255,255,255,.10);margin:18px 6px;}
.side-foot{margin-top:auto;padding:0 4px;}
.side-cta{
  display:flex;align-items:center;justify-content:center;
  width:100%;min-height:46px;border-radius:10px;
  background:var(--accent);color:#fff;font-weight:600;font-size:15px;
  box-shadow:0 10px 22px -14px rgba(255,106,43,.9);
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.side-cta:hover{background:#ea5c1f;color:#fff;transform:translateY(-1px);}
.side-note{margin-top:10px;font-size:12px;line-height:1.7;color:rgba(255,255,255,.55);padding:0 2px;}

.main-area{margin-left:var(--sidebar-w);flex:1;min-width:0;display:flex;flex-direction:column;min-height:100vh;}
.main-inner{flex:1;}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.scope{width:100%;max-width:1200px;margin:0 auto;padding:0 32px 72px;}

/* ---------- 顶部工具条 ---------- */
.topbar{
  height:56px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;border-bottom:1px solid var(--line);background:rgba(246,245,241,.9);
  padding:0 32px;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);line-height:1.6;}
.crumb a{color:var(--ink-3);}
.crumb a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.crumb .sep{color:#c9c7bd;}
.crumb .now{color:var(--ink-2);}
.topbar-tip{font-size:12.5px;color:var(--ink-3);display:flex;align-items:center;gap:8px;}
.topbar-tip .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}

/* ---------- 移动端顶栏 ---------- */
.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;z-index:1035;
  height:60px;background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 6px 20px -16px rgba(12,35,29,.5);
  align-items:center;gap:10px;padding:0 14px;
}
.burger{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:10px;background:#fff;
}
.burger span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;position:relative;}
.burger span::before,.burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-900);border-radius:2px;
}
.burger span::before{top:-6px;}
.burger span::after{top:6px;}
.mobile-brand{display:flex;flex-direction:column;line-height:1.25;}
.mobile-brand b{font-size:16px;color:var(--brand-900);letter-spacing:.08em;}
.mobile-brand small{font-size:11px;color:var(--ink-3);letter-spacing:.03em;}
.mobile-cta{
  margin-left:auto;display:flex;align-items:center;justify-content:center;
  min-height:40px;padding:0 14px;border-radius:10px;
  background:var(--accent);color:#fff;font-size:14px;font-weight:600;
}
.mobile-cta:hover{color:#fff;background:#ea5c1f;}

.drawer{background:var(--brand-900);color:#fff;width:84%;max-width:320px;}
.drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.10);padding:16px 18px;}
.drawer .offcanvas-body{padding:16px 14px 28px;display:flex;flex-direction:column;}
.btn-close-drawer{
  background:transparent;border:1px solid rgba(255,255,255,.24);color:#fff;
  width:36px;height:36px;border-radius:9px;line-height:1;font-size:16px;
}
.drawer .side-link{font-size:15px;}

/* ---------- 通用组件 ---------- */
.badge-soft{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--accent-soft);color:#B8430F;
  font-size:13px;font-weight:600;padding:6px 12px;border-radius:6px;letter-spacing:.02em;
}
.badge-soft::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}
.tag-mini{
  display:inline-flex;align-items:center;padding:4px 10px;border-radius:6px;
  background:var(--brand-700);color:#fff;font-size:12px;font-weight:600;letter-spacing:.02em;
}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  background:var(--accent);color:#fff;font-weight:600;font-size:15px;border:none;
  box-shadow:0 12px 26px -16px rgba(255,106,43,.95);
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-main:hover{background:#ea5c1f;color:#fff;transform:translateY(-1px);box-shadow:0 16px 30px -14px rgba(255,106,43,.9);}
.btn-main:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  background:transparent;border:1.5px solid var(--brand-700);color:var(--brand-700);
  font-weight:600;font-size:15px;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.btn-ghost:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff;transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700);}
.link-arrow svg{transition:transform .2s var(--ease);}
.link-arrow:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.link-arrow:hover svg{transform:translateX(4px);}

.sec-title{
  position:relative;font-size:30px;line-height:1.32;font-weight:700;letter-spacing:.01em;
  padding-left:16px;margin-bottom:10px;color:var(--ink);
}
.sec-title::before{
  content:"";position:absolute;left:0;top:8px;width:6px;height:22px;border-radius:3px;background:var(--accent);
}
.sec-desc{font-size:15px;line-height:1.9;color:var(--ink-2);max-width:760px;margin-bottom:28px;}

/* ---------- 分类头 ---------- */
.cat-hero{
  display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center;
  padding:44px 0 52px;
}
.cat-hero h1{
  font-size:44px;line-height:1.22;font-weight:700;letter-spacing:.01em;
  margin:16px 0 16px;color:var(--ink);
}
.cat-hero .lead{
  font-size:16.5px;line-height:1.9;color:var(--ink-2);max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.fact-row{display:flex;flex-wrap:wrap;gap:0;margin-top:26px;}
.fact-row li{
  position:relative;font-size:13.5px;line-height:1.7;color:var(--ink-2);
  padding:0 18px;
}
.fact-row li:first-child{padding-left:0;}
.fact-row li + li::before{
  content:"";position:absolute;left:0;top:4px;bottom:4px;width:1px;background:var(--line);
}
.hero-figure{position:relative;margin:0;}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:18px;}
.hero-figure::after{
  content:"";position:absolute;inset:0;border-radius:18px;
  background:linear-gradient(200deg,rgba(12,35,29,.06),rgba(12,35,29,.42));
}
.hero-stat{
  position:absolute;right:-12px;bottom:-18px;z-index:2;
  background:#fff;border-radius:14px;padding:14px 20px;box-shadow:var(--shadow);
  display:flex;flex-direction:column;gap:2px;
}
.hero-stat b{
  font-family:"DIN Alternate","Barlow",system-ui,sans-serif;
  font-size:28px;line-height:1.1;color:var(--brand-700);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.hero-stat b em{font-style:normal;font-size:14px;color:var(--accent);margin-left:2px;}
.hero-stat span{font-size:12.5px;color:var(--ink-3);line-height:1.5;}

/* ---------- 主内容两栏 ---------- */
.cat-body{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:36px;align-items:start;}
.step-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:32px 28px 20px;box-shadow:var(--shadow);
}
.step-list{margin-top:18px;}
.list-row{
  display:grid;grid-template-columns:64px minmax(0,1fr) 32px;gap:18px;align-items:start;
  padding:22px 14px;border-bottom:1px solid var(--line);border-radius:12px;
  transition:background .2s var(--ease);
}
.list-row:last-child{border-bottom:none;}
.list-row:hover{background:var(--bg);}
.list-num{
  font-family:"DIN Alternate","Barlow",system-ui,sans-serif;
  font-size:32px;font-weight:700;line-height:1;color:var(--brand-500);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;padding-top:4px;
}
.list-row:hover .list-num{color:var(--accent);}
.list-body h3{font-size:19px;line-height:1.5;font-weight:600;margin-bottom:6px;color:var(--ink);}
.list-body p{font-size:14.5px;line-height:1.85;color:var(--ink-2);}
.list-arrow{display:flex;align-items:center;justify-content:center;height:100%;color:var(--brand-500);}
.list-arrow svg{transition:transform .2s var(--ease),color .2s var(--ease);}
.list-row:hover .list-arrow svg{transform:translateX(4px);color:var(--accent);}

.side-stack{display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 20px;box-shadow:var(--shadow);
}
.side-card h3{font-size:16.5px;font-weight:600;line-height:1.5;margin-bottom:12px;color:var(--ink);}
.side-card p{font-size:14px;line-height:1.85;color:var(--ink-2);}
.side-card.tip{background:var(--accent-soft);border-color:#FFD9C6;box-shadow:none;}
.side-card.tip h3{color:#B8430F;}
.side-card.tip li{
  position:relative;padding-left:16px;font-size:13.8px;line-height:1.8;color:#6C3A25;margin-bottom:9px;
}
.side-card.tip li:last-child{margin-bottom:0;}
.side-card.tip li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--accent);
}
.side-cover{border-radius:10px;overflow:hidden;margin-bottom:14px;}
.side-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.nav-card a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:44px;padding:10px 0;border-bottom:1px solid var(--line);
  font-size:14.5px;color:var(--ink-2);
}
.nav-card a:last-child{border-bottom:none;}
.nav-card a:hover{color:var(--accent);}
.nav-card svg{flex:0 0 auto;transition:transform .2s var(--ease);}
.nav-card a:hover svg{transform:translateX(3px);}

/* ---------- 设备确认板块 ---------- */
.check-block{
  margin-top:56px;display:grid;grid-template-columns:.92fr 1.08fr;gap:40px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:32px;box-shadow:var(--shadow);
}
.check-block figure{margin:0;}
.check-block img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:14px;}
.check-item{display:grid;grid-template-columns:44px minmax(0,1fr);gap:16px;padding:16px 0;border-bottom:1px dashed var(--line);}
.check-item:last-child{border-bottom:none;padding-bottom:0;}
.check-item:first-child{padding-top:0;}
.check-no{
  display:flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:10px;background:var(--accent-soft);
  color:#B8430F;font-weight:700;font-size:15px;
  font-family:"DIN Alternate","Barlow",system-ui,sans-serif;
}
.check-item h4{font-size:16.5px;font-weight:600;line-height:1.55;margin-bottom:4px;}
.check-item p{font-size:14px;line-height:1.85;color:var(--ink-2);}

/* ---------- FAQ ---------- */
.faq-sec{margin-top:64px;}
.faq-acc .accordion-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  margin-bottom:14px;overflow:hidden;
}
.faq-acc .accordion-item:last-child{margin-bottom:0;}
.faq-acc .accordion-button{
  font-size:17px;font-weight:600;line-height:1.6;color:var(--ink);
  background:var(--surface);padding:20px 48px 20px 22px;
  box-shadow:none !important;border-radius:var(--radius-card) !important;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.faq-acc .accordion-button:hover{background:#FBFBF8;}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--brand-700);background:var(--bg);
  box-shadow:inset 3px 0 0 var(--accent) !important;
}
.faq-acc .accordion-button::after{
  background-image:none !important;
  width:11px;height:11px;margin-left:auto;
  border:solid var(--brand-700);border-width:0 2px 2px 0;
  transform:rotate(45deg);border-radius:1px;
  transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);border-color:var(--accent);}
.faq-acc .accordion-body{
  padding:18px 22px 22px;font-size:14.8px;line-height:1.95;color:var(--ink-2);
  background:var(--bg);
}

/* ---------- CTA 条 ---------- */
.cta-bar{
  margin-top:64px;background:var(--accent-soft);border:1px solid #FFD9C6;
  border-radius:var(--radius-lg);padding:36px 34px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
}
.cta-bar h2{font-size:26px;line-height:1.4;font-weight:700;color:#3A2118;margin-bottom:8px;}
.cta-bar p{font-size:14.5px;line-height:1.85;color:#6C3A25;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:56px 0 24px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand .brand-mark{display:block;font-size:20px;font-weight:700;color:#fff;letter-spacing:.10em;}
.footer-brand .brand-sub{display:block;font-size:12px;color:rgba(255,255,255,.55);margin-top:4px;letter-spacing:.04em;}
.footer-brand p{margin-top:14px;font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.55);max-width:320px;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;letter-spacing:.03em;}
.footer-col a{
  display:block;font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.62);
  padding:6px 0;transition:color .2s var(--ease);
}
.footer-col a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.footer-note{font-size:13px;line-height:1.9;color:rgba(255,255,255,.55);}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.5px;line-height:1.8;color:rgba(255,255,255,.45);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .cat-hero{grid-template-columns:1fr .92fr;gap:32px;}
  .cat-hero h1{font-size:38px;}
  .cat-body{grid-template-columns:minmax(0,1fr) 280px;gap:26px;}
  .check-block{gap:28px;padding:26px;}
}
@media (max-width:991.98px){
  .sidebar{display:none;}
  .main-area{margin-left:0;padding-top:60px;}
  .mobile-bar{display:flex;}
  .topbar{display:none;}
  .scope,.container-x{padding-left:22px;padding-right:22px;}
  .cat-hero{grid-template-columns:1fr;padding:28px 0 36px;gap:28px;}
  .cat-hero h1{font-size:32px;margin:14px 0 12px;}
  .hero-figure{order:-1;}
  .hero-figure img{aspect-ratio:16/9;}
  .hero-stat{right:12px;bottom:12px;padding:10px 14px;}
  .hero-stat b{font-size:22px;}
  .cat-body{grid-template-columns:1fr;}
  .check-block{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .sec-title{font-size:25px;}
}
@media (max-width:575.98px){
  body{font-size:15.5px;}
  .scope,.container-x{padding-left:16px;padding-right:16px;}
  .cat-hero h1{font-size:28px;}
  .cat-hero .lead{font-size:15.5px;}
  .hero-actions .btn-main,.hero-actions .btn-ghost{width:100%;}
  .fact-row{gap:8px 0;}
  .fact-row li{font-size:12.8px;padding:0 12px;}
  .step-panel{padding:22px 16px 12px;}
  .list-row{grid-template-columns:44px minmax(0,1fr);gap:12px;padding:18px 6px;}
  .list-num{font-size:24px;}
  .list-arrow{display:none;}
  .list-body h3{font-size:17px;}
  .list-body p{font-size:14px;}
  .check-block{padding:20px;margin-top:40px;}
  .check-item{grid-template-columns:38px minmax(0,1fr);gap:12px;}
  .check-no{width:38px;height:38px;font-size:14px;}
  .faq-sec,.cta-bar{margin-top:44px;}
  .faq-acc .accordion-button{font-size:16px;padding:16px 44px 16px 16px;}
  .faq-acc .accordion-body{padding:14px 16px 18px;font-size:14px;}
  .cta-bar{padding:24px 20px;}
  .cta-bar h2{font-size:21px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .footer-bottom{font-size:12px;}
}

/* roulang page: category2 */
:root{
  --brand-900:#0C231D;
  --brand-700:#17473B;
  --brand-500:#2E7A63;
  --accent:#FF6A2B;
  --accent-soft:#FFEDE4;
  --bg:#F6F5F1;
  --surface:#FFFFFF;
  --line:#E4E2D9;
  --ink:#14201C;
  --ink-2:#55645E;
  --ink-3:#8B9791;
  --radius-card:14px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(12,35,29,.06),0 10px 28px -14px rgba(12,35,29,.22);
  --shadow-hover:0 14px 32px -12px rgba(12,35,29,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
  --sidebar-w:248px;
  --bs-primary:#17473B;
  --bs-body-bg:#F6F5F1;
  --bs-body-color:#14201C;
  --bs-border-radius:14px;
  --bs-link-color:#17473B;
  --bs-link-hover-color:#FF6A2B;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:80px;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
a:focus-visible,button:focus-visible,.chip:focus-visible,summary:focus-visible,input:focus-visible{
  outline:3px solid rgba(255,106,43,.35);
  outline-offset:2px;
  border-radius:6px;
}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 40px;}

/* ============ App Shell ============ */
.app-shell{display:flex;min-height:100vh;}
.sidebar{
  width:var(--sidebar-w);
  position:fixed;
  inset:0 auto 0 0;
  background:var(--brand-900);
  border-right:1px solid rgba(255,255,255,.08);
  display:flex;
  flex-direction:column;
  padding:0 16px 22px;
  overflow-y:auto;
  z-index:1040;
}
.brand-block{
  display:flex;flex-direction:column;justify-content:center;
  min-height:72px;padding:14px 8px;gap:2px;
  border-bottom:1px solid rgba(255,255,255,.08);
  margin-bottom:14px;
}
.brand-mark{font-size:22px;font-weight:700;color:#fff;letter-spacing:.02em;line-height:1.2;}
.brand-sub{font-size:12.5px;color:rgba(255,255,255,.6);letter-spacing:.04em;}
.side-nav{display:flex;flex-direction:column;gap:4px;}
.side-link{
  position:relative;
  display:flex;align-items:center;
  min-height:46px;
  padding:10px 14px;
  border-radius:10px;
  color:rgba(255,255,255,.72);
  font-size:15px;
  line-height:1.5;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.side-link:hover{background:rgba(255,255,255,.08);color:#fff;text-decoration:none;}
.side-link.active{background:rgba(255,255,255,.10);color:#fff;font-weight:600;}
.side-link.active::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  border-radius:2px;background:var(--accent);
}
.side-divider{height:1px;background:rgba(255,255,255,.1);margin:18px 8px;}
.side-cta{
  display:flex;align-items:center;justify-content:center;
  min-height:46px;border-radius:var(--radius-btn);
  background:var(--accent);color:#fff;font-weight:600;font-size:15px;
  box-shadow:0 8px 20px -10px rgba(255,106,43,.9);
  transition:background .2s var(--ease),transform .2s var(--ease);
}
.side-cta:hover{background:#e85c1f;color:#fff;text-decoration:none;transform:translateY(-1px);}
.side-note{
  margin-top:12px;font-size:12.5px;line-height:1.8;
  color:rgba(255,255,255,.55);padding:0 4px;
}
.main-area{margin-left:var(--sidebar-w);flex:1;min-width:0;display:flex;flex-direction:column;}
.topbar{
  min-height:56px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:0 40px;
  background:rgba(246,245,241,.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:1020;
}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-3);line-height:1.6;}
.crumb a{color:var(--ink-3);}
.crumb a:hover{color:var(--accent);}
.crumb .sep{color:#c3c8c3;}
.crumb .current{color:var(--ink-2);font-weight:600;}
.topbar-hint{font-size:13px;color:var(--ink-2);white-space:nowrap;}
.topbar-hint strong{color:var(--brand-700);}
.mobile-bar{display:none;}

/* ============ Hero ============ */
.page-wrap{padding:44px 0 0;}
.hero-cat{
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:36px;
  align-items:center;
  padding-bottom:44px;
  border-bottom:1px solid var(--line);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent-soft);color:#B84410;
  font-size:13px;font-weight:600;letter-spacing:.02em;
  padding:6px 12px;border-radius:6px;
  margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}
h1{
  font-size:46px;line-height:1.22;font-weight:700;letter-spacing:.01em;
  color:var(--ink);margin-bottom:18px;
}
.hero-lead{font-size:16.5px;line-height:1.95;color:var(--ink-2);max-width:620px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;
  border-radius:var(--radius-btn);border:1px solid transparent;
  background:var(--accent);color:#fff;font-weight:600;font-size:15px;
  transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  box-shadow:0 8px 20px -12px rgba(255,106,43,.95);
}
.btn-x:hover{background:#e85c1f;color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-x:active{transform:translateY(1px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;
  border-radius:var(--radius-btn);
  border:1.5px solid var(--brand-700);background:transparent;
  color:var(--brand-700);font-weight:600;font-size:15px;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.btn-ghost:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff;text-decoration:none;transform:translateY(-1px);}
.hero-media{position:relative;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-sm);}
.hero-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,35,29,.12),rgba(12,35,29,.42));
}
.media-tag{
  position:absolute;left:16px;bottom:16px;z-index:2;
  background:#fff;border-radius:10px;padding:10px 14px;
  box-shadow:var(--shadow-sm);
  font-size:13px;color:var(--ink-2);line-height:1.5;
}
.media-tag b{display:block;font-size:18px;color:var(--brand-700);font-variant-numeric:tabular-nums;letter-spacing:-.02em;}

/* ============ Sections ============ */
.section{padding:56px 0;}
.section.tight{padding:44px 0;}
.section-head{margin-bottom:26px;}
h2.sec-title{
  position:relative;font-size:31px;line-height:1.32;font-weight:700;color:var(--ink);
  padding-left:16px;margin-bottom:10px;
}
h2.sec-title::before{
  content:"";position:absolute;left:0;top:6px;width:6px;height:22px;
  border-radius:3px;background:var(--accent);
}
.sec-sub{font-size:15px;color:var(--ink-2);line-height:1.85;max-width:760px;}

/* chips */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin:26px 0 30px;}
.chip{
  display:inline-flex;align-items:center;min-height:40px;
  padding:0 18px;border-radius:999px;
  border:1px solid var(--line);background:var(--surface);
  color:var(--ink-2);font-size:14px;font-weight:500;
  transition:all .2s var(--ease);
}
.chip:hover{border-color:var(--brand-500);color:var(--brand-700);text-decoration:none;}
.chip.on{background:var(--brand-700);border-color:var(--brand-700);color:#fff;font-weight:600;}

/* topic grid */
.topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.topic-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  display:flex;flex-direction:column;
  box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.topic-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--accent);}
.card-media{position:relative;}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.card-badge{
  position:absolute;left:14px;top:14px;
  background:var(--brand-700);color:#fff;
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
  padding:5px 10px;border-radius:6px;
}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--ink);}
.card-body p{font-size:14.5px;line-height:1.85;color:var(--ink-2);}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.card-meta{font-size:13px;color:var(--ink-3);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700);}
.link-arrow svg{transition:transform .2s var(--ease);}
.link-arrow:hover{color:var(--accent);text-decoration:none;}
.link-arrow:hover svg{transform:translateX(4px);}

/* check list */
.check-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.check-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;display:flex;gap:16px;align-items:flex-start;
  box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.check-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.check-num{
  flex:0 0 auto;font-family:"DIN Alternate","Barlow",system-ui,sans-serif;
  font-size:26px;font-weight:700;color:var(--brand-500);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;line-height:1.2;
}
.check-item h4{font-size:16.5px;font-weight:600;margin-bottom:6px;color:var(--ink);}
.check-item p{font-size:14px;line-height:1.85;color:var(--ink-2);}

/* dark stat */
.stat-block{
  background:var(--brand-900);
  border-radius:var(--radius-lg);
  padding:44px;
  display:grid;grid-template-columns:auto 1fr;gap:40px;align-items:center;
  color:#fff;
}
.stat-num{
  font-family:"DIN Alternate","Barlow",system-ui,sans-serif;
  font-size:72px;font-weight:700;line-height:1;letter-spacing:-.02em;
  color:#fff;font-variant-numeric:tabular-nums;
}
.stat-num span{color:var(--accent);font-size:26px;margin-left:6px;font-weight:600;}
.stat-copy h3{font-size:21px;font-weight:600;margin-bottom:10px;color:#fff;line-height:1.5;}
.stat-copy p{font-size:15px;line-height:1.9;color:rgba(255,255,255,.72);max-width:640px;}

/* FAQ */
.acc .accordion-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  margin-bottom:14px;
  overflow:hidden;
  --bs-accordion-border-width:0;
  --bs-accordion-btn-focus-box-shadow:none;
}
.acc .accordion-button{
  font-size:17px;font-weight:600;color:var(--ink);
  background:var(--surface);
  padding:20px 22px;
  line-height:1.6;
  border-left:3px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease);
  --bs-accordion-btn-icon:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2317473B'%3E%3Cpath d='M8 11.6 2.4 6l1.1-1.1L8 9.4l4.5-4.5L13.6 6z'/%3E%3C/svg%3E");
  --bs-accordion-btn-active-icon:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23FF6A2B'%3E%3Cpath d='M8 11.6 2.4 6l1.1-1.1L8 9.4l4.5-4.5L13.6 6z'/%3E%3C/svg%3E");
}
.acc .accordion-button:not(.collapsed){
  background:var(--bg);
  color:var(--brand-700);
  border-left-color:var(--accent);
  box-shadow:none;
}
.acc .accordion-button:hover{background:var(--bg);}
.acc .accordion-body{
  padding:20px 22px 24px;
  font-size:15px;line-height:1.95;color:var(--ink-2);
  background:var(--bg);
}

/* CTA band */
.cta-band{
  background:var(--accent-soft);
  border:1px solid #F8D9C8;
  border-radius:var(--radius-lg);
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:26px;font-weight:700;line-height:1.4;margin-bottom:8px;color:var(--ink);}
.cta-band p{font-size:15px;color:var(--ink-2);line-height:1.85;max-width:620px;}

/* Footer */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);margin-top:64px;padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px;}
.footer-brand .brand-mark{display:block;font-size:21px;margin-bottom:4px;}
.footer-brand .brand-sub{display:block;font-size:12.5px;color:rgba(255,255,255,.55);margin-bottom:14px;}
.footer-brand p{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.6);max-width:300px;}
.footer-col h4{font-size:14px;color:#fff;font-weight:600;margin-bottom:14px;letter-spacing:.02em;}
.footer-col a{display:block;font-size:13.5px;color:rgba(255,255,255,.72);padding:5px 0;line-height:1.7;}
.footer-col a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.footer-note{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.6);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:18px 0 22px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.5);line-height:1.7;
}
.overlay{position:fixed;inset:0;background:rgba(12,35,29,.5);opacity:0;pointer-events:none;transition:opacity .2s var(--ease);z-index:1030;}
.overlay.show{opacity:1;pointer-events:auto;}

/* ============ Responsive ============ */
@media (max-width:1200px){
  .container-x{padding:0 32px;}
  h1{font-size:40px;}
  .topbar{padding:0 32px;}
}
@media (max-width:991.98px){
  .sidebar{transform:translateX(-100%);transition:transform .25s var(--ease);width:84%;max-width:320px;box-shadow:var(--shadow-hover);}
  .sidebar.open{transform:translateX(0);}
  .main-area{margin-left:0;}
  .topbar{display:none;}
  .mobile-bar{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    height:60px;padding:0 16px;position:sticky;top:0;z-index:1010;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 1px 2px rgba(12,35,29,.06);
  }
  .hamburger{
    width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--line);border-radius:10px;background:#fff;
  }
  .hamburger span{display:block;width:18px;height:2px;background:var(--brand-900);position:relative;}
  .hamburger span::before,.hamburger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-900);}
  .hamburger span::before{top:-6px;}
  .hamburger span::after{top:6px;}
  .mobile-logo{display:flex;flex-direction:column;line-height:1.2;text-align:center;}
  .mobile-logo b{font-size:15px;color:var(--brand-900);}
  .mobile-logo small{font-size:11px;color:var(--ink-3);}
  .mobile-cta{
    min-height:40px;display:inline-flex;align-items:center;padding:0 14px;
    background:var(--accent);color:#fff;border-radius:9px;font-size:13.5px;font-weight:600;
  }
  .mobile-cta:hover{color:#fff;text-decoration:none;background:#e85c1f;}
  .hero-cat{grid-template-columns:1fr;gap:26px;}
  .hero-media{order:-1;}
  .hero-media img{aspect-ratio:16/10;}
  h1{font-size:32px;}
  h2.sec-title{font-size:26px;}
  .stat-block{grid-template-columns:1fr;gap:20px;padding:32px 28px;}
  .check-list{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-band{padding:28px 24px;}
  .page-wrap{padding-top:28px;}
  .section{padding:44px 0;}
}
@media (max-width:767.98px){
  .container-x{padding:0 20px;}
  h1{font-size:29px;}
  h2.sec-title{font-size:23px;}
  .topic-grid{grid-template-columns:1fr;}
  .stat-num{font-size:56px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .hero-actions{gap:10px;}
  .btn-x,.btn-ghost{width:100%;}
  .card-body{padding:18px 18px 20px;}
}
@media (max-width:520px){
  .chip{min-height:38px;padding:0 14px;font-size:13px;}
  .eyebrow{font-size:12px;}
  .cta-band h2{font-size:22px;}
  .mobile-logo small{display:none;}
}