/* roulang page: index */
:root{
  --c-primary:#1263C6;
  --c-primary-600:#0F55AC;
  --c-primary-700:#0C468C;
  --c-primary-tint:#EAF2FD;
  --c-primary-soft:#D7E6FA;
  --c-accent:#FF7A29;
  --c-accent-600:#E96A1C;
  --c-accent-tint:#FFF1E7;
  --c-teal:#12A594;
  --c-teal-tint:#E4F7F4;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-surface-2:#F0F5FB;
  --c-border:#E3EAF3;
  --c-text:#16212E;
  --c-text-2:#5B6B7F;
  --c-text-3:#8A99AB;
  --c-success:#16A34A;
  --c-danger:#E5484D;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,45,80,.05),0 2px 8px rgba(18,45,80,.04);
  --sh-2:0 8px 24px rgba(18,45,80,.07);
  --sh-3:0 16px 40px rgba(18,45,80,.10);
  --nav-h:72px;
  --ease:200ms ease;
  --bs-primary:#1263C6;
  --bs-primary-rgb:18,99,198;
  --bs-body-color:#16212E;
  --bs-border-color:#E3EAF3;
  --bs-link-color:#1263C6;
  --bs-link-hover-color:#0F55AC;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--c-primary-600);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(18,99,198,.28);border-radius:var(--r-sm);}
.container{max-width:1320px;padding-left:24px;padding-right:24px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow var(--ease),height var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:var(--nav-h);
  transition:height var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand__mark{
  width:38px;height:38px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,var(--c-primary) 0%,var(--c-primary-700) 100%);
  box-shadow:0 6px 14px rgba(18,99,198,.25);
}
.brand__mark svg{width:21px;height:21px;stroke:#fff;}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__text b{font-size:16px;font-weight:800;letter-spacing:.4px;color:var(--c-text);}
.brand__text span{font-size:11.5px;font-weight:600;color:var(--c-text-3);letter-spacing:.5px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;}
.main-nav .nav-link{
  position:relative;
  padding:10px 12px;
  font-size:14.5px;
  font-weight:600;
  color:var(--c-text-2);
  border-radius:var(--r-sm);
  white-space:nowrap;
  transition:color var(--ease),background var(--ease);
}
.main-nav .nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--c-primary);border-radius:2px;transform:scaleX(0);transform-origin:center;
  transition:transform var(--ease);
}
.main-nav .nav-link:hover{color:var(--c-primary);background:var(--c-primary-tint);}
.main-nav .nav-link:hover::after{transform:scaleX(1);}
.main-nav .nav-link.is-active{color:var(--c-primary);}
.main-nav .nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:16px;margin-left:auto;}
.link-quiet{font-size:14px;font-weight:600;color:var(--c-text-2);}
.link-quiet:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;}
.nav-toggle{display:none;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 24px;
  font-size:15px;font-weight:600;line-height:1.4;
  border-radius:var(--r-md);border:1px solid transparent;
  cursor:pointer;text-align:center;
  transition:background var(--ease),color var(--ease),box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.btn-primary{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-600);border-color:var(--c-primary-600);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px);}
.btn-primary:active{background:var(--c-primary-700);border-color:var(--c-primary-700);transform:translateY(0);}
.btn-accent{background:var(--c-accent);border-color:var(--c-accent);color:#fff;}
.btn-accent:hover{background:var(--c-accent-600);border-color:var(--c-accent-600);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px);}
.btn-accent:active{background:#D25F16;border-color:#D25F16;transform:translateY(0);}
.btn-ghost{background:var(--c-surface);border-color:var(--c-primary-soft);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-tint);border-color:var(--c-primary);color:var(--c-primary-600);box-shadow:var(--sh-1);transform:translateY(-1px);}
.btn-lg{padding:14px 30px;font-size:16px;min-height:50px;}
.btn-sm{padding:7px 16px;font-size:13.5px;min-height:38px;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--c-primary);
  padding:8px 4px;border-bottom:1px solid transparent;min-height:44px;
}
.btn-text:hover{color:var(--c-primary-600);border-bottom-color:var(--c-primary-600);}

/* ============ 通用板块 ============ */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--alt{background:var(--c-surface-2);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;font-weight:700;letter-spacing:.6px;
  color:var(--c-primary-600);background:var(--c-primary-tint);
  padding:5px 13px;border-radius:var(--r-pill);margin-bottom:16px;
}
.eyebrow i{font-size:13px;}
.eyebrow--accent{color:var(--c-accent);background:var(--c-accent-tint);}
.section-title{font-size:clamp(22px,2.4vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.3px;}
.section-desc{margin-top:14px;font-size:16px;color:var(--c-text-2);max-width:70ch;}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:40px;}
.head-row .section-head{margin-bottom:0;}

/* ============ Hero ============ */
.hero{
  position:relative;
  background:linear-gradient(180deg,#FFFFFF 0%,#FBFDFF 45%,var(--c-bg) 100%);
  padding:80px 0 96px;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--c-primary-soft) 1px,transparent 1px),linear-gradient(90deg,var(--c-primary-soft) 1px,transparent 1px);
  background-size:56px 56px;
  opacity:.35;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 78%);
  pointer-events:none;
}
.hero__inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero__badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-teal);
  background:var(--c-teal-tint);
  padding:6px 14px;border-radius:var(--r-pill);
}
.hero__badge .dot{width:7px;height:7px;border-radius:50%;background:var(--c-teal);box-shadow:0 0 0 4px rgba(18,165,148,.16);}
.hero h1{
  margin-top:20px;
  font-size:clamp(28px,3.6vw,44px);
  font-weight:700;line-height:1.25;letter-spacing:-.5px;
}
.hero__lead{
  margin-top:20px;font-size:17px;line-height:1.85;color:var(--c-text-2);max-width:62ch;
}
.hero__actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:32px;}
.hero__metrics{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;margin-top:44px;padding-top:28px;border-top:1px solid var(--c-border);
}
.hero__metrics li strong{
  display:block;font-size:clamp(22px,2.6vw,30px);font-weight:800;color:var(--c-primary);letter-spacing:-.5px;
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.hero__metrics li span{display:block;margin-top:4px;font-size:13px;color:var(--c-text-3);}
.hero__media{position:relative;}
.hero__media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid var(--c-border);box-shadow:var(--sh-3);
}
.hero__float{
  position:absolute;left:-18px;bottom:-22px;
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:16px 18px;min-width:210px;
}
.hero__float b{display:block;font-size:20px;font-weight:800;color:var(--c-text);font-variant-numeric:tabular-nums;}
.hero__float span{display:block;font-size:12.5px;color:var(--c-text-3);margin-top:2px;}
.hero__float .bar{height:6px;border-radius:6px;background:var(--c-surface-2);margin-top:10px;overflow:hidden;}
.hero__float .bar i{display:block;height:100%;width:82%;border-radius:6px;background:linear-gradient(90deg,var(--c-primary),var(--c-teal));}

/* ============ 价值主张条 ============ */
.value-strip{background:var(--c-surface-2);border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border);padding:44px 0;}
.value-strip__grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:28px;}
.value-item{display:flex;gap:14px;align-items:flex-start;}
.value-item .ico{
  flex:0 0 44px;width:44px;height:44px;border-radius:var(--r-md);
  background:var(--c-surface);border:1px solid var(--c-border);
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);box-shadow:var(--sh-1);
}
.value-item .ico i{font-size:20px;}
.value-item h3{font-size:15.5px;font-weight:700;margin-bottom:4px;}
.value-item p{font-size:13.8px;line-height:1.75;color:var(--c-text-2);}

/* ============ 功能分组 ============ */
.feature-layout{display:grid;grid-template-columns:.82fr 1.18fr;gap:52px;align-items:start;}
.feature-aside .section-title{margin-bottom:16px;}
.feature-aside p{color:var(--c-text-2);font-size:15.5px;}
.feature-aside .mini-list{margin-top:26px;display:flex;flex-direction:column;gap:12px;}
.feature-aside .mini-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:var(--c-text-2);}
.feature-aside .mini-list i{color:var(--c-teal);font-size:16px;margin-top:4px;}
.feature-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.feature-card{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
  display:flex;flex-direction:column;
}
.feature-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--c-primary-soft);}
.feature-card--wide{grid-column:span 2;flex-direction:row;}
.feature-card--wide .feature-card__media{flex:0 0 46%;}
.feature-card--wide .feature-card__media img{height:100%;min-height:250px;aspect-ratio:auto;}
.feature-card__media{overflow:hidden;background:var(--c-surface-2);}
.feature-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 400ms ease;}
.feature-card:hover .feature-card__media img{transform:scale(1.03);}
.feature-card__body{padding:24px 26px;display:flex;flex-direction:column;flex:1;}
.feature-card__ico{
  width:42px;height:42px;border-radius:var(--r-md);background:var(--c-primary-tint);
  display:flex;align-items:center;justify-content:center;color:var(--c-primary);margin-bottom:14px;
}
.feature-card__ico i{font-size:19px;}
.feature-card__ico--teal{background:var(--c-teal-tint);color:var(--c-teal);}
.feature-card__ico--accent{background:var(--c-accent-tint);color:var(--c-accent);}
.feature-card h3{font-size:19px;font-weight:700;margin-bottom:9px;}
.feature-card p{font-size:14.6px;line-height:1.75;color:var(--c-text-2);}
.feature-card__foot{margin-top:auto;padding-top:16px;}
.feature-card__link{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);}
.feature-card__link i{transition:transform var(--ease);}
.feature-card__link:hover i{transform:translateX(4px);}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.badge-soft{
  display:inline-flex;align-items:center;gap:5px;
  font-size:12.5px;font-weight:600;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--c-primary-tint);color:var(--c-primary-600);
}
.badge-teal{background:var(--c-teal-tint);color:var(--c-teal);}
.badge-accent{background:var(--c-accent-tint);color:var(--c-accent);}
.badge-plain{background:var(--c-surface-2);color:var(--c-text-2);}

/* ============ 使用场景 Tab ============ */
.scene-tabs{
  display:flex;gap:10px;flex-wrap:wrap;margin-bottom:32px;
}
.scene-tab{
  border:1px solid var(--c-border);background:var(--c-surface);color:var(--c-text-2);
  font-size:14.5px;font-weight:600;padding:11px 20px;border-radius:var(--r-pill);
  cursor:pointer;min-height:44px;
  transition:all var(--ease);
}
.scene-tab:hover{border-color:var(--c-primary-soft);color:var(--c-primary);}
.scene-tab.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;box-shadow:0 8px 18px rgba(18,99,198,.22);}
.scene-panel{display:none;}
.scene-panel.is-active{display:block;animation:fadeUp 320ms ease both;}
@keyframes fadeUp{from{opacity:0;transform:translateY(8px);}to{opacity:1;transform:translateY(0);}}
.scene-inner{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:36px;overflow:hidden;
}
.scene-inner.reverse .scene-media{order:2;}
.scene-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-md);}
.scene-body h3{font-size:22px;font-weight:700;margin-bottom:14px;}
.scene-body p{font-size:15.5px;color:var(--c-text-2);}
.scene-steps{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.scene-steps li{display:flex;gap:12px;align-items:flex-start;font-size:14.8px;color:var(--c-text-2);}
.scene-steps .step-no{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;
  background:var(--c-primary-tint);color:var(--c-primary-600);
  font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:3px;
}

/* ============ 数据看板 ============ */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;margin-bottom:36px;}
.stat-card{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:22px 24px;
  transition:box-shadow var(--ease),transform var(--ease);
}
.stat-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.stat-card b{display:block;font-size:30px;font-weight:800;color:var(--c-primary);font-variant-numeric:tabular-nums;letter-spacing:-.6px;line-height:1.15;}
.stat-card span{display:block;margin-top:6px;font-size:13.5px;color:var(--c-text-3);}
.stat-card .bar{height:5px;border-radius:5px;background:var(--c-surface-2);margin-top:14px;overflow:hidden;}
.stat-card .bar i{display:block;height:100%;border-radius:5px;background:var(--c-teal);}
.table-wrap{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
}
.table-wrap .table-title{
  padding:20px 26px;border-bottom:1px solid var(--c-border);
  font-size:16px;font-weight:700;display:flex;align-items:center;gap:10px;
}
.table-wrap .table-title i{color:var(--c-primary);}
.data-table{width:100%;border-collapse:collapse;}
.data-table th{
  background:var(--c-surface-2);color:var(--c-text-2);
  font-size:13.5px;font-weight:700;text-align:left;padding:14px 26px;white-space:nowrap;
}
.data-table td{
  padding:16px 26px;font-size:14.6px;color:var(--c-text-2);border-top:1px solid var(--c-border);
  font-variant-numeric:tabular-nums;
}
.data-table td b{color:var(--c-text);font-weight:700;}
.data-table tbody tr:hover{background:#FAFCFF;}
.status-pill{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;
  padding:3px 11px;border-radius:var(--r-pill);background:var(--c-teal-tint);color:var(--c-teal);
}
.status-pill::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;}

/* ============ 案例 ============ */
.case-list{display:flex;flex-direction:column;gap:26px;}
.case-card{
  display:grid;grid-template-columns:280px 1fr;gap:34px;align-items:center;
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:34px 38px;
  transition:box-shadow var(--ease),transform var(--ease);
}
.case-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.case-card--flip{grid-template-columns:1fr 280px;}
.case-card--flip .case-metric{order:2;}
.case-metric{
  border-left:3px solid var(--c-primary);padding-left:22px;
}
.case-metric b{display:block;font-size:40px;font-weight:800;color:var(--c-primary);font-variant-numeric:tabular-nums;letter-spacing:-1px;line-height:1.1;}
.case-metric span{display:block;margin-top:6px;font-size:13.5px;color:var(--c-text-3);}
.case-body blockquote{
  margin:0;font-size:16px;line-height:1.85;color:var(--c-text);
}
.case-body .case-meta{margin-top:14px;display:flex;gap:10px;flex-wrap:wrap;align-items:center;font-size:13px;color:var(--c-text-3);}

/* ============ 价格 ============ */
.price-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:stretch;}
.price-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:32px 30px;
  display:flex;flex-direction:column;
  transition:box-shadow var(--ease),transform var(--ease);
}
.price-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.price-card--featured{
  border:1px solid var(--c-accent);box-shadow:var(--sh-3);
  transform:translateY(-8px);
}
.price-card--featured:hover{transform:translateY(-10px);}
.price-card__badge{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  background:var(--c-accent);color:#fff;font-size:12.5px;font-weight:700;
  padding:5px 16px;border-radius:var(--r-pill);white-space:nowrap;
}
.price-card h3{font-size:18px;font-weight:700;}
.price-card .price-desc{font-size:13.8px;color:var(--c-text-3);margin-top:8px;min-height:44px;}
.price-amount{display:flex;align-items:baseline;gap:6px;margin:18px 0 6px;}
.price-amount b{font-size:38px;font-weight:800;color:var(--c-text);letter-spacing:-1px;font-variant-numeric:tabular-nums;line-height:1;}
.price-amount span{font-size:14px;color:var(--c-text-3);}
.price-list{display:flex;flex-direction:column;gap:11px;margin:22px 0 26px;}
.price-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.4px;color:var(--c-text-2);line-height:1.7;}
.price-list i{color:var(--c-teal);font-size:15px;margin-top:4px;flex:0 0 auto;}
.price-card .btn{width:100%;margin-top:auto;}
.price-note{margin-top:14px;font-size:12.8px;color:var(--c-text-3);text-align:center;}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:24px;}
.news-card{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;
  transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.news-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--c-primary-soft);}
.news-card--lead{flex-direction:column;grid-row:span 4;}
.news-card--lead .news-card__media img{aspect-ratio:16/9;width:100%;object-fit:cover;}
.news-card:not(.news-card--lead){flex-direction:row;align-items:stretch;}
.news-card:not(.news-card--lead) .news-card__media{flex:0 0 34%;}
.news-card:not(.news-card--lead) .news-card__media img{width:100%;height:100%;object-fit:cover;min-height:132px;}
.news-card__media{display:block;overflow:hidden;background:var(--c-surface-2);}
.news-card__media img{transition:transform 400ms ease;}
.news-card:hover .news-card__media img{transform:scale(1.03);}
.news-card__body{padding:22px 24px;display:flex;flex-direction:column;flex:1;}
.news-card--lead .news-card__body{padding:26px 28px;}
.news-card__meta{display:flex;align-items:center;gap:12px;font-size:12.8px;color:var(--c-text-3);margin-bottom:10px;}
.news-card h3{font-size:17px;font-weight:700;line-height:1.5;}
.news-card--lead h3{font-size:22px;}
.news-card h3 a{color:var(--c-text);}
.news-card h3 a:hover{color:var(--c-primary);}
.news-card__excerpt{
  margin-top:10px;font-size:14.4px;line-height:1.75;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:not(.news-card--lead) .news-card__excerpt{-webkit-line-clamp:2;}
.news-card__foot{margin-top:auto;padding-top:14px;font-size:13.5px;}
.news-card__foot a{font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.news-empty{
  min-height:260px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--c-surface);border:1px dashed var(--c-primary-soft);border-radius:var(--r-lg);text-align:center;padding:40px;
}
.news-empty i{font-size:34px;color:var(--c-primary-soft);}
.news-empty p{color:var(--c-text-2);font-size:15px;}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:start;}
.faq-aside p{color:var(--c-text-2);font-size:15.4px;margin-top:14px;}
.faq-aside .faq-help{
  margin-top:26px;background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:22px 24px;
}
.faq-aside .faq-help b{display:block;font-size:15.5px;}
.faq-aside .faq-help p{font-size:14px;margin-top:8px;}
.faq.accordion{display:flex;flex-direction:column;gap:12px;}
.faq .accordion-item{
  border:1px solid var(--c-border);border-radius:var(--r-md)!important;overflow:hidden;
  background:var(--c-surface);box-shadow:var(--sh-1);
}
.faq .accordion-button{
  background:var(--c-surface);color:var(--c-text);
  font-size:16px;font-weight:600;padding:18px 22px;
  box-shadow:none!important;border-radius:0;
  display:flex;justify-content:space-between;gap:16px;
}
.faq .accordion-button:not(.collapsed){background:rgba(234,242,253,.7);color:var(--c-primary-600);}
.faq .accordion-button::after{
  content:"\F4FE";font-family:"bootstrap-icons";
  background-image:none;width:auto;height:auto;font-size:16px;line-height:1;
  color:var(--c-primary);transition:transform var(--ease);
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(180deg);}
.faq .accordion-body{
  padding:6px 22px 22px;font-size:14.8px;line-height:1.85;color:var(--c-text-2);background:var(--c-surface);
}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--c-primary-tint);
  border-top:1px solid var(--c-primary-soft);border-bottom:1px solid var(--c-primary-soft);
  padding:76px 0;text-align:center;
}
.cta-band::before{
  content:"";position:absolute;top:-60px;right:-40px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,99,198,.12),transparent 70%);
}
.cta-band::after{
  content:"";position:absolute;bottom:-70px;left:-50px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,41,.14),transparent 70%);
}
.cta-band .container{position:relative;z-index:1;}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;letter-spacing:-.3px;}
.cta-band p{margin:16px auto 0;max-width:66ch;font-size:16px;color:var(--c-text-2);}
.cta-actions{margin-top:30px;display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-surface-2);border-top:1px solid var(--c-border);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--c-text-2);max-width:34ch;line-height:1.8;}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--c-text);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:var(--c-text-2);}
.footer-col a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;}
.footer-contact li{font-size:14px;color:var(--c-text-2);display:flex;gap:10px;align-items:flex-start;margin-bottom:11px;}
.footer-contact i{color:var(--c-primary);margin-top:4px;}
.footer-bottom{
  margin-top:52px;border-top:1px solid var(--c-border);padding:20px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}
.footer-bottom a{color:var(--c-text-3);}
.footer-bottom a:hover{color:var(--c-primary);}

/* ============ 移动端底部 Tab ============ */
.mobile-tabbar{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  background:var(--c-surface);border-top:1px solid var(--c-border);
  box-shadow:0 -4px 16px rgba(18,45,80,.07);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tabbar a{
  flex:1;height:56px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  font-size:10.5px;font-weight:600;color:var(--c-text-3);position:relative;
  transition:color 150ms ease;
}
.mobile-tabbar a i{font-size:20px;}
.mobile-tabbar a.is-active{color:var(--c-primary);}
.mobile-tabbar a.is-active::after{
  content:"";position:absolute;top:0;width:22px;height:3px;border-radius:0 0 3px 3px;background:var(--c-primary);
}

/* ============ 渐入 ============ */
.reveal{opacity:0;transform:translateY(8px);transition:opacity 500ms ease,transform 500ms ease;}
.reveal.is-in{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation:none!important;transition:none!important;}
}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  .header-inner{gap:18px;}
  .main-nav .nav-link{padding:10px 9px;font-size:14px;}
}
@media (max-width:1199px){
  .section{padding:80px 0;}
  .hero__inner{gap:40px;}
  .feature-layout{grid-template-columns:1fr;gap:36px;}
  .news-grid{grid-template-columns:1fr;}
  .news-card--lead{grid-row:auto;}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-contact{grid-column:span 3;}
}
@media (max-width:991px){
  body{padding-bottom:calc(72px + env(safe-area-inset-bottom));}
  .mobile-tabbar{display:flex;}
  .main-nav,.header-actions .link-quiet{display:none;}
  .header-actions{margin-left:auto;}
  .section{padding:64px 0;}
  .section--tight{padding:56px 0;}
  .hero{padding:56px 0 64px;}
  .hero__inner{grid-template-columns:1fr;}
  .hero__media{order:-1;}
  .hero__media img{aspect-ratio:16/10;}
  .hero__float{left:16px;bottom:-18px;}
  .scene-inner{grid-template-columns:1fr;gap:28px;padding:26px;}
  .scene-inner.reverse .scene-media{order:0;}
  .value-strip__grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .price-grid{grid-template-columns:1fr;gap:20px;}
  .price-card--featured{transform:none;order:-1;}
  .price-card--featured:hover{transform:translateY(-2px);}
  .case-card,.case-card--flip{grid-template-columns:1fr;gap:22px;padding:28px;}
  .case-card--flip .case-metric{order:0;}
}
@media (max-width:767px){
  .container{padding-left:18px;padding-right:18px;}
  .section{padding:52px 0;}
  .hero h1{font-size:28px;}
  .hero__metrics{grid-template-columns:1fr;gap:14px;padding-top:22px;}
  .hero__metrics li{display:flex;align-items:baseline;gap:10px;}
  .hero__metrics li strong{font-size:22px;}
  .value-strip__grid{grid-template-columns:1fr;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-card--wide{grid-column:span 1;flex-direction:column;}
  .feature-card--wide .feature-card__media img{min-height:0;aspect-ratio:16/9;}
  .stat-grid{grid-template-columns:1fr;}
  .news-card:not(.news-card--lead){flex-direction:column;}
  .news-card:not(.news-card--lead) .news-card__media{flex:0 0 auto;}
  .news-card:not(.news-card--lead) .news-card__media img{min-height:0;aspect-ratio:16/9;}
  .data-table th,.data-table td{padding:12px 16px;font-size:13.5px;}
  .table-wrap{overflow-x:auto;}
  .data-table{min-width:560px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-contact{grid-column:span 1;}
  .cta-band{padding:60px 0;}
  .btn{width:100%;}
  .btn-text{width:auto;}
  .hero__actions .btn,
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:519px){
  .brand__text b{font-size:14.5px;}
  .brand__text span{font-size:10.5px;}
  .scene-tab{padding:10px 15px;font-size:13.5px;}
  .feature-card__body{padding:20px;}
  .news-card__body{padding:20px;}
  .news-card--lead h3{font-size:19px;}
}

/* roulang page: category1 */
:root{
    --c-primary:#1263C6;
    --c-primary-600:#0F55AC;
    --c-primary-700:#0C468C;
    --c-primary-tint:#EAF2FD;
    --c-primary-soft:#D7E6FA;
    --c-accent:#FF7A29;
    --c-accent-600:#E96A1C;
    --c-accent-tint:#FFF1E7;
    --c-teal:#12A594;
    --c-teal-tint:#E4F6F3;
    --c-bg:#F5F8FC;
    --c-surface:#FFFFFF;
    --c-surface-2:#F0F5FB;
    --c-border:#E3EAF3;
    --c-text:#16212E;
    --c-text-2:#5B6B7F;
    --c-text-3:#8A99AB;
    --c-success:#16A34A;
    --c-danger:#E5484D;

    --r-sm:8px;
    --r-md:12px;
    --r-lg:16px;
    --r-pill:999px;

    --sh-1:0 1px 2px rgba(18,45,80,.05), 0 2px 8px rgba(18,45,80,.04);
    --sh-2:0 8px 24px rgba(18,45,80,.07);
    --sh-3:0 16px 40px rgba(18,45,80,.10);

    --bs-primary:#1263C6;
    --bs-body-color:#16212E;
    --bs-body-bg:#F5F8FC;
    --bs-border-color:#E3EAF3;
    --bs-link-color:#1263C6;
    --bs-link-hover-color:#0C468C;
    --bs-font-sans-serif:system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", sans-serif;
  }

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

  html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }

  body{
    margin:0;
    font-family:var(--bs-font-sans-serif);
    font-size:16px;
    line-height:1.8;
    color:var(--c-text);
    background:var(--c-bg);
    font-variant-numeric:tabular-nums;
    -webkit-font-smoothing:antialiased;
  }

  img{ max-width:100%; display:block; }
  a{ color:var(--c-primary); text-decoration:none; transition:color .2s ease; }
  a:hover{ color:var(--c-primary-700); text-decoration:underline; }
  button{ font-family:inherit; }
  :focus-visible{ outline:3px solid rgba(18,99,198,.28); outline-offset:2px; }

  h1,h2,h3,h4{ margin:0; color:var(--c-text); font-weight:700; }
  h1{ font-size:clamp(28px,3.6vw,44px); line-height:1.25; letter-spacing:-0.5px; }
  h2{ font-size:clamp(22px,2.4vw,32px); line-height:1.3; }
  h3{ font-size:19px; line-height:1.45; font-weight:600; }
  h4{ font-size:15px; line-height:1.5; }
  p{ margin:0 0 16px; color:var(--c-text-2); }
  p:last-child{ margin-bottom:0; }

  .container{ width:100%; padding-left:24px; padding-right:24px; margin:0 auto; max-width:1320px; }
  @media (max-width:1399px){ .container{ max-width:1140px; } }
  @media (max-width:1199px){ .container{ max-width:960px; } }
  @media (max-width:991px){ .container{ max-width:720px; } }
  @media (max-width:767px){ .container{ max-width:100%; padding-left:16px; padding-right:16px; } }

  .section{ padding:96px 0; }
  .section--tight{ padding:72px 0; }
  @media (max-width:991px){ .section{ padding:64px 0; } .section--tight{ padding:52px 0; } }
  @media (max-width:575px){ .section{ padding:48px 0; } .section--tight{ padding:44px 0; } }

  .section-head{ max-width:760px; margin-bottom:40px; }
  .section-head--center{ margin-left:auto; margin-right:auto; text-align:center; }
  .section-head p{ margin-top:14px; font-size:16px; }
  .eyebrow{
    display:inline-flex; align-items:center; gap:8px;
    font-size:13px; font-weight:600; letter-spacing:.04em;
    color:var(--c-primary-600); background:var(--c-primary-tint);
    padding:6px 14px; border-radius:var(--r-pill); margin-bottom:16px;
  }

  /* ---------- 顶部导航 ---------- */
  .site-header{
    position:sticky; top:0; z-index:1030;
    background:var(--c-surface);
    border-bottom:1px solid var(--c-border);
    transition:box-shadow .2s ease, padding .2s ease;
  }
  .site-header.is-scrolled{ box-shadow:var(--sh-2); }
  .header-inner{
    display:flex; align-items:center; gap:24px;
    height:72px; transition:height .2s ease;
  }
  .site-header.is-scrolled .header-inner{ height:64px; }

  .brand{ display:inline-flex; align-items:center; gap:10px; text-decoration:none; flex:0 0 auto; }
  .brand:hover{ text-decoration:none; }
  .brand__mark{
    width:38px; height:38px; border-radius:var(--r-md);
    background:var(--c-primary); color:#fff;
    display:inline-flex; align-items:center; justify-content:center;
    box-shadow:0 4px 12px rgba(18,99,198,.25);
  }
  .brand__mark svg{ width:22px; height:22px; stroke:#fff; fill:none; }
  .brand__text{ display:flex; flex-direction:column; line-height:1.15; }
  .brand__text b{ font-size:16px; font-weight:700; letter-spacing:.06em; color:var(--c-text); }
  .brand__text span{ font-size:12px; color:var(--c-text-2); letter-spacing:.02em; }

  .main-nav{ display:flex; align-items:center; gap:4px; margin-left:auto; flex-wrap:nowrap; }
  .main-nav .nav-link{
    position:relative;
    display:inline-block;
    padding:10px 12px;
    font-size:15px; font-weight:500;
    color:var(--c-text-2); text-decoration:none;
    border-radius:var(--r-sm);
    white-space:nowrap;
    transition:color .18s ease, background .18s ease;
  }
  .main-nav .nav-link:hover{ color:var(--c-primary); background:var(--c-primary-tint); text-decoration:none; }
  .main-nav .nav-link::after{
    content:""; position:absolute; left:12px; right:12px; bottom:2px; height:2px;
    background:var(--c-primary); border-radius:2px;
    transform:scaleX(0); transform-origin:left center;
    transition:transform .2s ease;
  }
  .main-nav .nav-link:hover::after{ transform:scaleX(1); }
  .main-nav .nav-link.is-active{ color:var(--c-primary); font-weight:600; }
  .main-nav .nav-link.is-active::after{ transform:scaleX(1); }

  .header-actions{ display:flex; align-items:center; gap:16px; flex:0 0 auto; }
  .link-quiet{ font-size:14px; color:var(--c-text-2); text-decoration:none; }
  .link-quiet:hover{ color:var(--c-primary); text-decoration:none; }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    min-height:44px; padding:12px 24px;
    font-size:15px; font-weight:600; line-height:1;
    border-radius:var(--r-md); border:1px solid transparent;
    text-decoration:none; cursor:pointer;
    transition:background .2s ease, color .2s ease, box-shadow .2s ease, transform .2s ease, border-color .2s ease;
  }
  .btn:hover{ text-decoration:none; }
  .btn-primary{ background:var(--c-primary); color:#fff; box-shadow:var(--sh-1); }
  .btn-primary:hover{ background:var(--c-primary-600); color:#fff; box-shadow:var(--sh-2); transform:translateY(-1px); }
  .btn-primary:active{ background:var(--c-primary-700); transform:translateY(0); }
  .btn-accent{ background:var(--c-accent); color:#fff; box-shadow:var(--sh-1); }
  .btn-accent:hover{ background:var(--c-accent-600); color:#fff; box-shadow:var(--sh-2); transform:translateY(-1px); }
  .btn-accent:active{ background:#D25E15; transform:translateY(0); }
  .btn-outline{ background:var(--c-surface); color:var(--c-primary); border-color:var(--c-primary-soft); }
  .btn-outline:hover{ background:var(--c-primary-tint); color:var(--c-primary-700); border-color:var(--c-primary); transform:translateY(-1px); box-shadow:var(--sh-1); }
  .btn-ghost{ background:transparent; color:var(--c-primary); padding-left:8px; padding-right:8px; }
  .btn-ghost:hover{ text-decoration:underline; background:transparent; box-shadow:none; }
  .btn-sm{ min-height:38px; padding:9px 18px; font-size:14px; }
  .btn-lg{ min-height:52px; padding:15px 30px; font-size:16px; }

  /* ---------- 面包屑 ---------- */
  .breadcrumb-bar{ background:var(--c-surface); border-bottom:1px solid var(--c-border); }
  .breadcrumb{
    margin:0; padding:14px 0; font-size:13px;
    background:transparent; display:flex; flex-wrap:wrap; gap:6px; align-items:center;
  }
  .breadcrumb a{ color:var(--c-text-2); text-decoration:none; }
  .breadcrumb a:hover{ color:var(--c-primary); text-decoration:none; }
  .breadcrumb .sep{ color:var(--c-text-3); }
  .breadcrumb .current{ color:var(--c-text-3); }

  /* ---------- 分类页头 ---------- */
  .page-hero{
    background:linear-gradient(180deg, #FFFFFF 0%, var(--c-bg) 100%);
    border-bottom:1px solid var(--c-border);
    padding:72px 0 80px;
    position:relative;
    overflow:hidden;
  }
  .page-hero::before{
    content:""; position:absolute; inset:0;
    background-image:linear-gradient(var(--c-primary-soft) 1px, transparent 1px),
                     linear-gradient(90deg, var(--c-primary-soft) 1px, transparent 1px);
    background-size:56px 56px;
    opacity:.4;
    mask-image:linear-gradient(180deg, rgba(0,0,0,.7), transparent 78%);
    -webkit-mask-image:linear-gradient(180deg, rgba(0,0,0,.7), transparent 78%);
    pointer-events:none;
  }
  .page-hero .container{ position:relative; z-index:1; }
  .page-hero__inner{ max-width:820px; }
  .page-hero h1{ margin:14px 0 18px; }
  .page-hero h1 em{ font-style:normal; color:var(--c-primary); }
  .page-hero__lead{ font-size:17px; line-height:1.8; color:var(--c-text-2); max-width:70ch; }
  .hero-facts{ display:flex; flex-wrap:wrap; gap:12px; margin-top:28px; }
  .fact-chip{
    display:inline-flex; align-items:center; gap:8px;
    background:var(--c-surface); border:1px solid var(--c-border);
    border-radius:var(--r-pill); padding:8px 16px;
    font-size:13px; font-weight:600; color:var(--c-text-2);
    box-shadow:var(--sh-1);
  }
  .fact-chip i{ color:var(--c-teal); font-size:15px; }

  /* ---------- 时间线 + sticky 图卡 ---------- */
  .timeline-layout{ display:grid; grid-template-columns:minmax(0,1.35fr) minmax(0,1fr); gap:48px; align-items:start; }
  .timeline{ position:relative; }
  .tl-item{ position:relative; padding-left:72px; padding-bottom:36px; }
  .tl-item:last-child{ padding-bottom:0; }
  .tl-item::before{
    content:""; position:absolute; left:21px; top:44px; bottom:0; width:2px;
    background:var(--c-primary-soft);
  }
  .tl-item:last-child::before{ display:none; }
  .tl-num{
    position:absolute; left:0; top:0;
    width:44px; height:44px; border-radius:50%;
    background:var(--c-primary); color:#fff;
    display:inline-flex; align-items:center; justify-content:center;
    font-size:16px; font-weight:700;
    box-shadow:0 6px 16px rgba(18,99,198,.22);
  }
  .tl-body{
    background:var(--c-surface);
    border:1px solid var(--c-border);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-1);
    padding:24px 28px;
    transition:box-shadow .2s ease, transform .2s ease;
  }
  .tl-item:hover .tl-body{ box-shadow:var(--sh-2); transform:translateY(-2px); }
  .tl-body h3{ margin-bottom:10px; }
  .tl-body p{ font-size:15px; line-height:1.75; }
  .tl-meta{
    display:flex; flex-wrap:wrap; gap:8px; margin-top:16px;
  }
  .badge-tag{
    display:inline-flex; align-items:center; gap:6px;
    font-size:12px; font-weight:600;
    padding:4px 12px; border-radius:var(--r-pill);
    background:var(--c-primary-tint); color:var(--c-primary-600);
  }
  .badge-tag--accent{ background:var(--c-accent-tint); color:var(--c-accent-600); }
  .badge-tag--teal{ background:var(--c-teal-tint); color:#0E8274; }

  .side-card{
    position:sticky; top:100px;
    background:var(--c-surface);
    border:1px solid var(--c-border);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-2);
    overflow:hidden;
  }
  .side-card__media{ background:var(--c-surface-2); aspect-ratio:16/9; overflow:hidden; }
  .side-card__media img{ width:100%; height:100%; object-fit:cover; }
  .side-card__body{ padding:24px; }
  .side-card__body h3{ font-size:18px; margin-bottom:10px; }
  .side-card__body p{ font-size:14px; line-height:1.75; }
  .side-list{ list-style:none; margin:18px 0 0; padding:0; border-top:1px dashed var(--c-border); }
  .side-list li{
    display:flex; gap:10px; align-items:flex-start;
    padding:12px 0; border-bottom:1px dashed var(--c-border);
    font-size:14px; color:var(--c-text-2);
  }
  .side-list li:last-child{ border-bottom:none; }
  .side-list i{ color:var(--c-primary); font-size:15px; line-height:1.7; }

  /* ---------- 核对清单表格 ---------- */
  .table-wrap{
    background:var(--c-surface);
    border:1px solid var(--c-border);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-1);
    overflow-x:auto;
  }
  table.check-table{ width:100%; border-collapse:collapse; min-width:640px; }
  table.check-table th,
  table.check-table td{
    padding:16px 22px; text-align:left; font-size:14.5px;
    border-bottom:1px solid var(--c-border);
    vertical-align:top;
  }
  table.check-table thead th{
    background:var(--c-surface-2); font-size:14px; font-weight:700; color:var(--c-text);
    white-space:nowrap;
  }
  table.check-table tbody td{ color:var(--c-text-2); line-height:1.75; }
  table.check-table tbody tr:last-child td{ border-bottom:none; }
  table.check-table tbody tr:hover{ background:var(--c-primary-tint); }
  .cell-key{ font-weight:600; color:var(--c-text); }

  /* ---------- 常见卡点 ---------- */
  .issue-grid{ display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:24px; }
  .issue-card{
    background:var(--c-surface);
    border:1px solid var(--c-border);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-1);
    padding:26px;
    transition:box-shadow .2s ease, transform .2s ease;
  }
  .issue-card:hover{ box-shadow:var(--sh-2); transform:translateY(-2px); }
  .issue-icon{
    width:46px; height:46px; border-radius:var(--r-md);
    background:var(--c-primary-tint); color:var(--c-primary);
    display:inline-flex; align-items:center; justify-content:center;
    font-size:21px; margin-bottom:18px;
  }
  .issue-card h3{ font-size:17px; margin-bottom:10px; }
  .issue-card p{ font-size:14.5px; line-height:1.75; }

  /* ---------- 信息卡提醒 ---------- */
  .notice-card{
    display:flex; gap:20px; align-items:flex-start;
    background:var(--c-surface);
    border:1px solid var(--c-primary-soft);
    border-left:4px solid var(--c-primary);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-1);
    padding:26px 28px;
    margin-top:32px;
  }
  .notice-card i{ font-size:24px; color:var(--c-primary); line-height:1; margin-top:2px; }
  .notice-card h3{ font-size:17px; margin-bottom:8px; }
  .notice-card p{ font-size:14.5px; line-height:1.75; }

  /* ---------- FAQ ---------- */
  .faq-wrap{ max-width:920px; margin:0 auto; }
  .accordion-item{
    background:var(--c-surface);
    border:1px solid var(--c-border);
    border-radius:var(--r-md) !important;
    box-shadow:var(--sh-1);
    margin-bottom:12px;
    overflow:hidden;
  }
  .accordion-button{
    background:var(--c-surface);
    color:var(--c-text);
    font-size:16px; font-weight:600;
    padding:20px 24px;
    border:none;
    box-shadow:none !important;
    display:flex; align-items:center; gap:14px;
  }
  .accordion-button::after{
    display:none;
  }
  .accordion-button .faq-mark{
    margin-left:auto; flex:0 0 auto;
    width:26px; height:26px; border-radius:50%;
    background:var(--c-primary-tint); color:var(--c-primary);
    display:inline-flex; align-items:center; justify-content:center;
    transition:transform .2s ease, background .2s ease;
  }
  .accordion-button .faq-mark i{ font-size:14px; }
  .accordion-button:not(.collapsed){ color:var(--c-primary-700); background:rgba(234,242,253,.7); }
  .accordion-button:not(.collapsed) .faq-mark{ transform:rotate(180deg); background:var(--c-primary); color:#fff; }
  .accordion-button:focus{ border-color:var(--c-primary); }
  .accordion-body{
    padding:4px 24px 22px;
    font-size:15px; line-height:1.8; color:var(--c-text-2);
    background:rgba(234,242,253,.35);
  }

  /* ---------- CTA ---------- */
  .cta-band{
    background:var(--c-primary-tint);
    border-top:1px solid var(--c-primary-soft);
    border-bottom:1px solid var(--c-primary-soft);
    padding:72px 0;
    position:relative;
    overflow:hidden;
  }
  .cta-band::after{
    content:""; position:absolute; right:-60px; top:-60px; width:260px; height:260px;
    background-image:radial-gradient(var(--c-primary) 1.6px, transparent 1.6px);
    background-size:16px 16px; opacity:.07; pointer-events:none;
  }
  .cta-band .container{ position:relative; z-index:1; text-align:center; }
  .cta-band h2{ margin-bottom:14px; }
  .cta-band p{ max-width:640px; margin:0 auto 28px; font-size:16px; }
  .cta-actions{ display:flex; flex-wrap:wrap; gap:14px; justify-content:center; }

  /* ---------- 页脚 ---------- */
  .site-footer{ background:var(--c-surface-2); border-top:1px solid var(--c-border); padding:64px 0 28px; }
  .footer-grid{ display:grid; grid-template-columns:1.5fr 1fr 1fr 1.3fr; gap:40px; }
  .footer-brand p{ margin-top:16px; font-size:14px; line-height:1.75; max-width:36ch; }
  .footer-col h4{ font-size:14px; font-weight:700; margin-bottom:16px; color:var(--c-text); }
  .footer-col ul{ list-style:none; margin:0; padding:0; }
  .footer-col li{ margin-bottom:12px; }
  .footer-col a{ font-size:14px; color:var(--c-text-2); text-decoration:none; }
  .footer-col a:hover{ color:var(--c-primary); text-decoration:none; }
  .footer-contact li{ display:flex; gap:10px; align-items:flex-start; font-size:14px; color:var(--c-text-2); }
  .footer-contact i{ color:var(--c-primary); font-size:15px; line-height:1.7; }
  .footer-bottom{
    margin-top:44px; padding-top:22px; border-top:1px solid var(--c-border);
    display:flex; flex-wrap:wrap; gap:12px; justify-content:space-between;
    font-size:13px; color:var(--c-text-3);
  }

  /* ---------- 移动端底部 Tab ---------- */
  .mobile-tabbar{ display:none; }
  @media (max-width:991px){
    .main-nav,.header-actions{ display:none; }
    .header-inner{ justify-content:space-between; }
    body{ padding-bottom:calc(72px + env(safe-area-inset-bottom)); }
    .mobile-tabbar{
      display:flex; position:fixed; left:0; right:0; bottom:0; z-index:1040;
      background:var(--c-surface);
      border-top:1px solid var(--c-border);
      box-shadow:0 -4px 16px rgba(18,45,80,.06);
      padding-bottom:env(safe-area-inset-bottom);
    }
    .mobile-tabbar a{
      flex:1 1 0; min-height:56px;
      display:flex; flex-direction:column; align-items:center; justify-content:center; gap:4px;
      font-size:10.5px; color:var(--c-text-3); text-decoration:none;
      transition:color .15s ease;
    }
    .mobile-tabbar a i{ font-size:22px; line-height:1; }
    .mobile-tabbar a:hover{ text-decoration:none; }
    .mobile-tabbar a.is-active{ color:var(--c-primary); }
    .mobile-tabbar a.is-active i{ position:relative; }
    .mobile-tabbar a.is-active i::after{
      content:""; position:absolute; left:50%; bottom:-7px; transform:translateX(-50%);
      width:14px; height:4px; border-radius:2px; background:var(--c-primary);
    }
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1199px){
    .timeline-layout{ grid-template-columns:1fr; gap:40px; }
    .side-card{ position:static; }
    .footer-grid{ grid-template-columns:1fr 1fr; gap:32px; }
  }
  @media (max-width:991px){
    .issue-grid{ grid-template-columns:1fr 1fr; }
    .page-hero{ padding:56px 0 60px; }
  }
  @media (max-width:767px){
    .issue-grid{ grid-template-columns:1fr; }
    .tl-item{ padding-left:60px; }
    .tl-item::before{ left:17px; }
    .tl-num{ width:36px; height:36px; font-size:15px; }
    .tl-body{ padding:20px; }
    .notice-card{ flex-direction:column; gap:12px; padding:22px; }
    .cta-actions .btn{ width:100%; }
  }
  @media (max-width:575px){
    .footer-grid{ grid-template-columns:1fr; gap:28px; }
    .footer-bottom{ flex-direction:column; }
    .hero-facts{ gap:10px; }
  }
  @media (prefers-reduced-motion: reduce){
    *{ transition:none !important; animation:none !important; scroll-behavior:auto !important; }
  }

/* roulang page: article */
:root{
  --c-primary:#1263C6;--c-primary-600:#0F55AC;--c-primary-700:#0C468C;
  --c-primary-tint:#EAF2FD;--c-primary-soft:#D7E6FA;
  --c-accent:#FF7A29;--c-accent-tint:#FFF1E7;
  --c-teal:#12A594;
  --c-bg:#F5F8FC;--c-surface:#FFFFFF;--c-surface-2:#F0F5FB;
  --c-border:#E3EAF3;--c-text:#16212E;--c-text-2:#5B6B7F;--c-text-3:#8A99AB;
  --c-success:#16A34A;--c-danger:#E5484D;
  --r-sm:8px;--r-md:12px;--r-lg:16px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(18,45,80,.05),0 2px 8px rgba(18,45,80,.04);
  --sh-2:0 8px 24px rgba(18,45,80,.07);
  --sh-3:0 16px 40px rgba(18,45,80,.10);
  --bs-primary:#1263C6;--bs-primary-rgb:18,99,198;
  --bs-body-color:#16212E;--bs-body-bg:#F5F8FC;
  --bs-border-color:#E3EAF3;--bs-link-color:#1263C6;--bs-link-hover-color:#0F55AC;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;padding:0;background:var(--c-bg);color:var(--c-text);
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
a:hover{color:var(--c-primary)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{list-style:none;padding:0}
.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:3px solid rgba(18,99,198,.28);outline-offset:2px}

.container{width:100%;max-width:1320px;margin:0 auto;padding:0 24px}
@media (max-width:1399px){.container{max-width:1140px}}
@media (max-width:1199px){.container{max-width:960px}}
@media (max-width:991px){.container{max-width:720px;padding:0 20px}}
@media (max-width:767px){.container{max-width:100%;padding:0 16px}}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:var(--c-surface);border-bottom:1px solid var(--c-border);transition:box-shadow .2s ease}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height .2s ease}
.site-header.is-scrolled .header-inner{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand__mark{width:38px;height:38px;border-radius:10px;background:var(--c-primary);display:grid;place-items:center;color:#fff;flex-shrink:0}
.brand__mark svg{width:22px;height:22px;stroke:currentColor;fill:none}
.brand__text{display:flex;flex-direction:column;line-height:1.15;white-space:nowrap}
.brand__text b{font-size:15px;font-weight:800;letter-spacing:.6px;color:var(--c-primary)}
.brand__text span{font-size:12px;color:var(--c-text-2)}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{position:relative;display:inline-block;padding:10px 12px;font-size:14.5px;font-weight:500;color:var(--c-text-2);border-radius:var(--r-sm);transition:color .18s ease,background-color .18s ease;white-space:nowrap}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-tint)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--c-primary)}
.header-actions{display:flex;align-items:center;gap:16px;flex-shrink:0}
.link-quiet{font-size:14px;color:var(--c-text-2);transition:color .18s ease}
.link-quiet:hover{color:var(--c-primary);text-decoration:underline}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:var(--r-md);
  padding:12px 24px;font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;text-align:center;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:var(--r-sm)}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-600);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-primary:active{background:var(--c-primary-700);transform:none}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:#F0691A;color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn-accent:active{background:#DE5C12;transform:none}
.btn-outline{background:#fff;border-color:var(--c-primary-soft);color:var(--c-primary-600)}
.btn-outline:hover{border-color:var(--c-primary);color:var(--c-primary);box-shadow:var(--sh-1);transform:translateY(-1px)}
.btn-text{background:transparent;color:var(--c-primary);padding:10px 2px}
.btn-text:hover{text-decoration:underline}

/* ---------- badges ---------- */
.badge-pill{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);font-size:12.5px;font-weight:600;line-height:1.6}
.badge-primary{background:var(--c-primary-tint);color:var(--c-primary-600)}
.badge-accent{background:var(--c-accent-tint);color:#D2600F}
.badge-teal{background:rgba(18,165,148,.12);color:#0E8577}

/* ---------- breadcrumb ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-2);padding-top:20px}
.crumbs a{color:var(--c-primary-600)}
.crumbs a:hover{text-decoration:underline}
.crumbs .sep{color:var(--c-text-3)}
.crumbs .current{color:var(--c-text-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:100%}

/* ---------- article hero ---------- */
.article-hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#FFFFFF 0%,var(--c-bg) 100%);border-bottom:1px solid var(--c-border)}
.article-hero::before{
  content:"";position:absolute;top:-30px;right:-60px;width:520px;height:100%;
  background:url('/assets/images/backpic/back-1.webp') no-repeat center/cover;opacity:.08;pointer-events:none;border-radius:0 0 0 120px}
.article-hero .container{position:relative;z-index:1}
.article-head{padding:24px 0 36px;max-width:900px}
.article-head h1{font-size:clamp(28px,3.6vw,44px);font-weight:700;line-height:1.25;letter-spacing:-.5px;margin:16px 0 18px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;font-size:14px;color:var(--c-text-2);padding-top:18px;border-top:1px solid var(--c-border)}
.article-meta span{display:inline-flex;align-items:center;gap:7px}
.article-meta i{color:var(--c-primary);font-size:15px}

/* ---------- layout ---------- */
.article-main{padding:56px 0 96px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start}
@media (max-width:1199px){.article-layout{grid-template-columns:minmax(0,1fr);gap:40px}}

/* ---------- article body ---------- */
.article-body{max-width:760px;min-width:0}
.article-body p{font-size:17px;line-height:1.85;color:var(--c-text-2);margin:0 0 1.2em}
.article-body h2{font-size:clamp(20px,2vw,26px);font-weight:700;line-height:1.35;color:var(--c-text);
  margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--c-primary);scroll-margin-top:96px}
.article-body h3{font-size:20px;font-weight:600;line-height:1.4;color:var(--c-text);margin:28px 0 12px}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 1.2em;list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{font-size:16.5px;line-height:1.85;color:var(--c-text-2);margin-bottom:8px}
.article-body ul li::marker{color:var(--c-teal)}
.article-body ol li::marker{color:var(--c-primary);font-weight:600}
.article-body blockquote{margin:24px 0;padding:18px 22px;background:var(--c-primary-tint);border-left:4px solid var(--c-primary);border-radius:var(--r-md);color:var(--c-text-2)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:20px 0;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:8px}
.article-body a{color:var(--c-primary);font-weight:500}
.article-body a:hover{text-decoration:underline}
.article-body strong,.article-body b{color:var(--c-text);font-weight:600}
.article-body hr{border:none;border-top:1px solid var(--c-border);margin:32px 0}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;display:block;overflow-x:auto}
.article-body thead th{background:var(--c-surface-2);color:var(--c-text);font-weight:600;text-align:left;padding:12px 14px;white-space:nowrap}
.article-body td{padding:12px 14px;border-top:1px solid var(--c-border);color:var(--c-text-2)}
.article-body code{background:var(--c-surface-2);border:1px solid var(--c-border);border-radius:var(--r-sm);padding:2px 6px;font-size:14px;color:var(--c-primary-700)}

/* ---------- empty state ---------- */
.empty-state{max-width:760px;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  padding:56px 28px;text-align:center;min-height:320px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px}
.empty-state .empty-icon{width:64px;height:64px;border-radius:50%;background:var(--c-primary-tint);display:grid;place-items:center;color:var(--c-primary);font-size:28px}
.empty-state h2{font-size:22px;font-weight:700}
.empty-state p{font-size:15px;color:var(--c-text-2);max-width:420px}

/* ---------- sidebar ---------- */
.side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px}
.side-card{background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);box-shadow:var(--sh-1);padding:24px}
.side-card h2,.side-card h3{font-size:16px;font-weight:700;color:var(--c-text);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h2 i,.side-card h3 i{color:var(--c-primary)}
.side-list{display:flex;flex-direction:column;gap:2px}
.side-list a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border-radius:var(--r-sm);
  font-size:14.5px;color:var(--c-text-2);transition:background-color .18s ease,color .18s ease}
.side-list a:hover{background:var(--c-primary-tint);color:var(--c-primary-600)}
.side-list a i{font-size:13px;color:var(--c-text-3)}
.side-list a:hover i{color:var(--c-primary)}
.side-note{font-size:13.5px;line-height:1.75;color:var(--c-text-2);background:var(--c-surface-2);border-radius:var(--r-md);padding:14px 16px}
.side-cta{background:var(--c-primary-tint);border:1px solid var(--c-primary-soft);border-radius:var(--r-lg);padding:24px}
.side-cta h3{font-size:16px;font-weight:700;margin-bottom:8px;color:var(--c-primary-700)}
.side-cta p{font-size:13.5px;line-height:1.7;color:var(--c-text-2);margin-bottom:16px}
.side-cta .btn{width:100%}

/* ---------- article footer blocks ---------- */
.block-gap{margin-top:40px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.tag{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--r-pill);background:var(--c-surface);
  border:1px solid var(--c-border);font-size:13px;font-weight:600;color:var(--c-text-2);transition:all .18s ease}
.tag:hover{border-color:var(--c-primary-soft);background:var(--c-primary-tint);color:var(--c-primary-600)}
.block-title{font-size:18px;font-weight:700;color:var(--c-text);margin-bottom:16px;display:flex;align-items:center;gap:10px}
.block-title i{color:var(--c-primary)}

.pager{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
@media (max-width:640px){.pager{grid-template-columns:minmax(0,1fr)}}
.pager a{display:flex;align-items:center;gap:14px;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:18px 22px;transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease}
.pager a:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--c-primary-soft)}
.pager .arrow{width:38px;height:38px;border-radius:50%;background:var(--c-primary-tint);color:var(--c-primary);display:grid;place-items:center;flex-shrink:0;font-size:17px}
.pager .txt{min-width:0}
.pager .txt small{display:block;font-size:12.5px;color:var(--c-text-3);margin-bottom:2px}
.pager .txt strong{display:block;font-size:15.5px;font-weight:600;color:var(--c-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pager .right{justify-content:flex-end;text-align:right}

/* ---------- related ---------- */
.section{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.3}
.section-head p{font-size:15px;color:var(--c-text-2);margin-top:8px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
@media (max-width:991px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}}
@media (max-width:575px){.card-grid{grid-template-columns:minmax(0,1fr);gap:16px}}
.card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow .2s ease,transform .2s ease;height:100%}
.card:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.card__media{position:relative;aspect-ratio:16/9;background:var(--c-surface-2);overflow:hidden}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card__media img{transform:scale(1.03)}
.card__body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card__body h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--c-text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__body p{font-size:14px;line-height:1.7;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card__foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--c-border)}
.card__foot span{font-size:13px;color:var(--c-text-3);display:inline-flex;align-items:center;gap:6px}
.card__link{font-size:13.5px;font-weight:600;color:var(--c-primary)}
.card__link:hover{text-decoration:underline}

/* ---------- cta band ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--c-primary-tint);border-top:1px solid var(--c-primary-soft);border-bottom:1px solid var(--c-primary-soft);padding:72px 0;text-align:center}
.cta-band::before{content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(18,99,198,.16) 1px,transparent 1px);background-size:18px 18px;opacity:.5;pointer-events:none}
.cta-band .container{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:16px}
.cta-band h2{font-size:clamp(22px,2.4vw,32px);font-weight:700;line-height:1.3}
.cta-band p{font-size:15.5px;color:var(--c-text-2);max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:6px}
@media (max-width:575px){.cta-actions .btn{width:100%}}

/* ---------- footer ---------- */
.site-footer{background:var(--c-surface-2);border-top:1px solid var(--c-border);padding:64px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
@media (max-width:991px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}}
@media (max-width:575px){.footer-grid{grid-template-columns:minmax(0,1fr)}}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--c-text-2);margin-top:16px;max-width:360px}
.footer-col h4{font-size:14px;font-weight:700;color:var(--c-text);margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--c-text-2);transition:color .18s ease}
.footer-col a:hover{color:var(--c-primary);text-decoration:underline}
.footer-contact li{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:var(--c-text-2)}
.footer-contact i{color:var(--c-primary);font-size:15px;margin-top:3px}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid var(--c-border);display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;font-size:13px;color:var(--c-text-3)}

/* ---------- mobile tabbar ---------- */
.mobile-tabbar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:1040;background:var(--c-surface);
  border-top:1px solid var(--c-border);box-shadow:0 -2px 12px rgba(18,45,80,.06);
  grid-template-columns:repeat(4,1fr);padding-bottom:env(safe-area-inset-bottom)}
.tab-item{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;height:56px;min-width:44px;
  font-size:11px;color:var(--c-text-3);transition:color .18s ease}
.tab-item i{font-size:22px;line-height:1}
.tab-item:hover,.tab-item.is-active{color:var(--c-primary)}
.tab-item.is-active::after{content:"";width:16px;height:3px;border-radius:2px;background:var(--c-primary)}
@media (max-width:991px){
  .mobile-tabbar{display:grid}
  body{padding-bottom:72px}
  .main-nav{margin-left:auto;overflow-x:auto;flex-wrap:nowrap;-ms-overflow-style:none;scrollbar-width:none;max-width:52vw}
  .main-nav::-webkit-scrollbar{display:none}
  .nav-link{padding:8px 10px;font-size:13.5px}
  .header-actions .link-quiet{display:none}
}
@media (max-width:767px){
  .header-inner{gap:12px}
  .header-actions .btn{display:none}
  .main-nav{max-width:60vw}
  .article-head{padding:18px 0 28px}
  .article-main{padding:40px 0 72px}
  .section{padding:48px 0}
  .side{position:static}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* roulang page: category3 */
:root{
  --bs-primary:#1263C6;
  --bs-primary-rgb:18,99,198;
  --bs-body-bg:#F5F8FC;
  --bs-body-color:#16212E;
  --c-primary:#1263C6;
  --c-primary-600:#0F55AC;
  --c-primary-700:#0C468C;
  --c-primary-tint:#EAF2FD;
  --c-primary-soft:#D7E6FA;
  --c-accent:#FF7A29;
  --c-accent-600:#ED6A17;
  --c-accent-tint:#FFF1E7;
  --c-teal:#12A594;
  --c-teal-tint:#E6F7F4;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-surface-2:#F0F5FB;
  --c-border:#E3EAF3;
  --c-text:#16212E;
  --c-text-2:#5B6B7F;
  --c-text-3:#8A99AB;
  --c-success:#16A34A;
  --c-danger:#E5484D;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,45,80,.05),0 2px 8px rgba(18,45,80,.04);
  --sh-2:0 8px 24px rgba(18,45,80,.07);
  --sh-3:0 16px 40px rgba(18,45,80,.10);
  --header-h:72px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-primary-600);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-text);letter-spacing:-.2px;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto;max-width:1320px;}
@media (max-width:1399px){.container{max-width:1140px;}}
@media (max-width:1199px){.container{max-width:960px;}}
@media (max-width:991px){.container{max-width:100%;}}
@media (max-width:575px){.container{padding-left:16px;padding-right:16px;}}
.tnum{font-variant-numeric:tabular-nums;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:var(--header-h);
  transition:height .2s ease;
}
.site-header.is-scrolled .header-inner{height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--c-text);flex:0 0 auto;}
.brand:hover{color:var(--c-text);}
.brand__mark{
  width:38px;height:38px;border-radius:var(--r-md);
  background:var(--c-primary-tint);
  display:inline-flex;align-items:center;justify-content:center;
  flex:0 0 auto;
}
.brand__mark svg{width:22px;height:22px;stroke:var(--c-primary);fill:none;}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__text b{font-size:15px;font-weight:700;letter-spacing:.6px;color:var(--c-primary-700);}
.brand__text span{font-size:12.5px;color:var(--c-text-2);letter-spacing:.5px;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.main-nav .nav-link{
  position:relative;
  padding:10px 12px;
  font-size:15px;font-weight:500;color:var(--c-text-2);
  border-radius:var(--r-sm);
  white-space:nowrap;
  transition:color .18s ease,background-color .18s ease;
}
.main-nav .nav-link:hover{color:var(--c-primary);background:var(--c-primary-tint);}
.main-nav .nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:center;
  transition:transform .2s ease;
}
.main-nav .nav-link:hover::after,
.main-nav .nav-link.is-active::after{transform:scaleX(1);}
.main-nav .nav-link.is-active{color:var(--c-primary);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.link-quiet{font-size:14px;color:var(--c-text-2);}
.link-quiet:hover{color:var(--c-primary);}

/* ============ 按钮 ============ */
.btn-brand,.btn-accent,.btn-ghost,.btn-soft{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;
  padding:12px 24px;
  font-size:15px;font-weight:600;
  border-radius:var(--r-md);
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.btn-sm{padding:9px 16px;min-height:38px;font-size:14px;border-radius:var(--r-sm);}
.btn-brand{background:var(--c-primary);color:#fff;}
.btn-brand:hover{background:var(--c-primary-600);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px);}
.btn-brand:active{background:var(--c-primary-700);transform:translateY(0);}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover{background:var(--c-accent-600);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px);}
.btn-accent:active{background:var(--c-accent-600);transform:translateY(0);}
.btn-soft{background:var(--c-surface);color:var(--c-primary);border-color:var(--c-primary-soft);}
.btn-soft:hover{background:var(--c-primary-tint);color:var(--c-primary-700);box-shadow:var(--sh-1);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--c-primary);padding:12px 6px;min-height:44px;}
.btn-ghost:hover{color:var(--c-primary-700);border-bottom:1px solid var(--c-primary-700);border-radius:0;}
.btn-brand:focus-visible,.btn-accent:focus-visible,.btn-soft:focus-visible,.btn-ghost:focus-visible,.nav-link:focus-visible,a:focus-visible{
  outline:3px solid rgba(18,99,198,.28);outline-offset:2px;
}

/* ============ 徽章 / 标签 ============ */
.badge-soft,.badge-accent,.badge-teal{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;font-size:12.5px;font-weight:600;line-height:1.6;
  border-radius:var(--r-pill);
}
.badge-soft{background:var(--c-primary-tint);color:var(--c-primary-600);}
.badge-accent{background:var(--c-accent-tint);color:var(--c-accent-600);}
.badge-teal{background:var(--c-teal-tint);color:#0B7A6D;}

/* ============ 面包屑 ============ */
.crumb-bar{background:var(--c-surface);border-bottom:1px solid var(--c-border);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13px;color:var(--c-text-3);}
.crumb a{color:var(--c-text-2);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:var(--c-text-3);}
.crumb .current{color:var(--c-text-3);}

/* ============ Hero ============ */
.cat-hero{
  position:relative;
  background:
    linear-gradient(180deg,rgba(255,255,255,.94) 0%,rgba(245,248,252,.96) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding:72px 0 80px;
  border-bottom:1px solid var(--c-border);
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(18,99,198,.08) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.7;pointer-events:none;
}
.cat-hero .container{position:relative;z-index:2;}
.cat-hero h1{font-size:clamp(28px,3.6vw,44px);font-weight:700;line-height:1.25;letter-spacing:-.5px;max-width:900px;}
.cat-hero .lead{
  margin-top:18px;max-width:720px;font-size:17px;line-height:1.85;color:var(--c-text-2);
}
.cat-hero .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-strip{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;
}
.hero-strip span{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;font-size:13px;font-weight:600;
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-pill);color:var(--c-text-2);box-shadow:var(--sh-1);
}
.hero-strip i{color:var(--c-teal);font-size:15px;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--alt{background:var(--c-surface-2);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{font-size:clamp(22px,2.4vw,32px);font-weight:700;line-height:1.3;}
.section-head p{margin-top:14px;color:var(--c-text-2);font-size:16px;}
.section-head--row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;max-width:none;}

/* ============ 指标卡 ============ */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.metric-card{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.metric-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--c-primary-soft);}
.metric-card .m-label{font-size:13px;font-weight:600;color:var(--c-text-3);letter-spacing:.4px;}
.metric-card .m-value{
  margin-top:10px;font-size:clamp(30px,3.2vw,40px);font-weight:700;line-height:1.1;
  color:var(--c-primary);font-variant-numeric:tabular-nums;
}
.metric-card .m-value small{font-size:15px;font-weight:600;color:var(--c-text-2);margin-left:6px;}
.metric-card .m-desc{margin-top:12px;font-size:14px;line-height:1.7;color:var(--c-text-2);}
.metric-card .m-tag{margin-top:16px;}

/* ============ 数据表 ============ */
.table-wrap{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
table.data-table{width:100%;min-width:760px;border-collapse:collapse;font-size:15px;}
table.data-table caption{
  caption-side:top;text-align:left;padding:22px 24px 12px;
  font-size:14px;color:var(--c-text-2);
}
table.data-table th,table.data-table td{
  padding:16px 24px;text-align:left;vertical-align:top;
  border-bottom:1px solid var(--c-border);
}
table.data-table thead th{
  background:var(--c-surface-2);font-size:13.5px;font-weight:700;color:var(--c-text);
  letter-spacing:.3px;white-space:nowrap;
}
table.data-table tbody tr:last-child td{border-bottom:none;}
table.data-table tbody tr:hover{background:#FAFCFF;}
table.data-table td strong{font-weight:600;}
table.data-table .col-key{color:var(--c-primary-700);font-weight:600;white-space:nowrap;}
table.data-table .col-tag{white-space:nowrap;}
.table-foot{
  padding:16px 24px;background:var(--c-surface-2);
  font-size:13px;color:var(--c-text-2);border-top:1px solid var(--c-border);
}

/* ============ 特性 2×2 网格 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.feature-card{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);position:relative;
  transition:box-shadow .2s ease,transform .2s ease;
}
.feature-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.feature-card .f-top{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.feature-card .f-icon{
  width:44px;height:44px;border-radius:var(--r-md);
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary-tint);color:var(--c-primary-600);font-size:20px;
}
.feature-card h3{margin-top:18px;font-size:19px;font-weight:600;}
.feature-card p{margin-top:10px;font-size:15px;line-height:1.75;color:var(--c-text-2);}
.feature-card ul{margin-top:16px;display:grid;gap:8px;}
.feature-card ul li{
  display:flex;gap:8px;align-items:flex-start;
  font-size:14px;color:var(--c-text-2);
}
.feature-card ul li i{color:var(--c-teal);font-size:16px;line-height:1.7;flex:0 0 auto;}

/* ============ 流程步骤（横向） ============ */
.flow-row{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.flow-item{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh-1);position:relative;
}
.flow-item .flow-num{
  width:34px;height:34px;border-radius:50%;
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.flow-item h3{margin-top:16px;font-size:17px;font-weight:600;}
.flow-item p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--c-text-2);}
.flow-item::after{
  content:"";position:absolute;right:-14px;top:40px;width:8px;height:2px;
  background:var(--c-primary-soft);
}
.flow-row .flow-item:last-child::after{display:none;}

/* ============ 说明条 ============ */
.notice-band{
  display:flex;gap:18px;align-items:flex-start;
  background:var(--c-primary-tint);
  border:1px solid var(--c-primary-soft);
  border-radius:var(--r-lg);
  padding:24px 26px;
}
.notice-band i{font-size:22px;color:var(--c-primary);line-height:1.4;flex:0 0 auto;}
.notice-band h3{font-size:17px;font-weight:600;}
.notice-band p{margin-top:8px;font-size:15px;line-height:1.75;color:var(--c-text-2);}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:960px;}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item:hover{box-shadow:var(--sh-2);}
.faq-item .faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-text);cursor:pointer;min-height:44px;
}
.faq-item .faq-q:hover{color:var(--c-primary-700);}
.faq-item .faq-q .faq-ico{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  background:var(--c-primary-tint);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;
  transition:transform .2s ease,background-color .2s ease;
}
.faq-item .faq-q[aria-expanded="true"]{color:var(--c-primary-700);}
.faq-item .faq-q[aria-expanded="true"] .faq-ico{transform:rotate(180deg);background:var(--c-accent-tint);color:var(--c-accent-600);}
.faq-item .faq-a{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--c-text-2);border-top:1px solid var(--c-border);padding-top:16px;}
.faq-item.is-open{background:rgba(234,242,253,.6);}

/* ============ CTA 转化带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--c-primary-tint);
  border-top:1px solid var(--c-primary-soft);
  border-bottom:1px solid var(--c-primary-soft);
  padding:80px 0;
}
.cta-band::before{
  content:"";position:absolute;left:-60px;top:-60px;width:220px;height:220px;
  background-image:radial-gradient(rgba(18,99,198,.18) 1.4px,transparent 1.4px);
  background-size:16px 16px;opacity:.5;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;bottom:-80px;width:260px;height:260px;
  border:1px solid rgba(18,99,198,.14);border-radius:32px;transform:rotate(12deg);
}
.cta-band .container{position:relative;z-index:2;text-align:center;}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;}
.cta-band p{margin:14px auto 0;max-width:640px;font-size:16px;color:var(--c-text-2);}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:28px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-surface-2);border-top:1px solid var(--c-border);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:32px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--c-text-2);max-width:340px;}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.4px;margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--c-text-2);}
.footer-col a:hover{color:var(--c-primary);}
.footer-contact li{display:flex;gap:8px;font-size:14px;color:var(--c-text-2);line-height:1.7;}
.footer-contact i{color:var(--c-primary);font-size:16px;line-height:1.7;flex:0 0 auto;}
.footer-bottom{
  margin-top:48px;padding:20px 0 26px;border-top:1px solid var(--c-border);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--c-text-3);
}

/* ============ 移动端底部 Tab ============ */
.mobile-tabbar{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  background:var(--c-surface);
  border-top:1px solid var(--c-border);
  box-shadow:0 -4px 16px rgba(18,45,80,.06);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tabbar .tab-inner{
  display:flex;align-items:stretch;justify-content:space-around;
}
.mobile-tabbar a{
  flex:1 1 0;min-height:56px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10.5px;font-weight:500;color:var(--c-text-3);
  transition:color .15s ease;
}
.mobile-tabbar a svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.mobile-tabbar a .dot{width:4px;height:4px;border-radius:50%;background:transparent;}
.mobile-tabbar a.is-active{color:var(--c-primary);font-weight:600;}
.mobile-tabbar a.is-active .dot{background:var(--c-primary);}
.mobile-tabbar a:active{color:var(--c-primary-700);}

/* ============ 渐入 ============ */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .5s ease,transform .5s ease;}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .main-nav{gap:2px;}
  .main-nav .nav-link{padding:10px 9px;font-size:14px;}
  .header-actions .link-quiet{display:none;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .flow-row{grid-template-columns:repeat(2,1fr);}
  .flow-item::after{display:none;}
}
@media (max-width:991px){
  body{padding-bottom:72px;}
  .main-nav,.header-actions{display:none;}
  .header-inner{height:64px;justify-content:space-between;}
  .site-header.is-scrolled .header-inner{height:60px;}
  .mobile-tabbar{display:block;}
  .section{padding:64px 0;}
  .cat-hero{padding:52px 0 60px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px 24px;}
  .cta-band{padding:64px 0;}
}
@media (max-width:767px){
  .feature-grid{grid-template-columns:1fr;}
  .section-head--row{align-items:flex-start;}
}
@media (max-width:575px){
  .metric-grid{grid-template-columns:1fr;gap:16px;}
  .flow-row{grid-template-columns:1fr;gap:16px;}
  .metric-card,.feature-card,.flow-item{padding:20px;}
  .section{padding:48px 0;}
  .section--tight{padding:48px 0;}
  .cat-hero{padding:40px 0 48px;}
  .cat-hero .hero-actions .btn-brand,
  .cat-hero .hero-actions .btn-soft{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .notice-band{flex-direction:column;gap:12px;padding:20px;}
  .cta-band .cta-actions .btn-brand,
  .cta-band .cta-actions .btn-soft{width:100%;}
  table.data-table th,table.data-table td{padding:14px 16px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1263C6;
  --c-primary-600:#0F55AC;
  --c-primary-700:#0C468C;
  --c-primary-tint:#EAF2FD;
  --c-primary-soft:#D7E6FA;
  --c-accent:#FF7A29;
  --c-accent-600:#E96A19;
  --c-accent-700:#D25F14;
  --c-accent-tint:#FFF1E7;
  --c-teal:#12A594;
  --c-teal-tint:#E6F6F4;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-surface-2:#F0F5FB;
  --c-border:#E3EAF3;
  --c-text:#16212E;
  --c-text-2:#5B6B7F;
  --c-text-3:#8A99AB;
  --c-success:#16A34A;
  --c-danger:#E5484D;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,45,80,.05),0 2px 8px rgba(18,45,80,.04);
  --sh-2:0 8px 24px rgba(18,45,80,.07);
  --sh-3:0 16px 40px rgba(18,45,80,.10);
  --font-cn:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --bs-primary:#1263C6;
  --bs-body-bg:#F5F8FC;
  --bs-body-color:#16212E;
  --bs-border-color:#E3EAF3;
  --bs-link-color:#1263C6;
  --bs-link-hover-color:#0F55AC;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",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:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-primary-600);text-decoration:underline}
h1,h2,h3,h4{margin:0;color:var(--c-text);letter-spacing:-.3px}
h1{font-size:clamp(28px,3.6vw,44px);font-weight:700;line-height:1.25}
h2{font-size:clamp(22px,2.4vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.4px}
h3{font-size:19px;font-weight:600;line-height:1.45}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
svg{display:block}
.num,.metric{font-variant-numeric:tabular-nums}
:focus-visible{outline:3px solid rgba(18,99,198,.28);outline-offset:2px;border-radius:var(--r-sm)}

/* ============ 容器 ============ */
.container{width:100%;max-width:1140px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container{max-width:1320px}}
@media (max-width:575.98px){.container{padding:0 16px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:72px;transition:min-height .2s ease;
}
.site-header.is-scrolled .header-inner{min-height:64px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0}
.brand:hover{text-decoration:none}
.brand__mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 38px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--c-primary) 0%,#2C7BE0 100%);
  box-shadow:0 4px 12px rgba(18,99,198,.24);
}
.brand__mark svg{width:21px;height:21px;stroke:#fff;fill:none}
.brand__text{display:flex;flex-direction:column;line-height:1.15}
.brand__text b{font-size:16px;font-weight:800;letter-spacing:.6px;color:var(--c-text)}
.brand__text span{font-size:12px;color:var(--c-text-3);letter-spacing:.2px}

.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px;flex-wrap:wrap}
.main-nav .nav-link{
  position:relative;
  display:inline-block;
  padding:10px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--c-text-2);
  border-radius:var(--r-sm);
  transition:color .18s ease,background .18s ease;
}
.main-nav .nav-link:hover{color:var(--c-primary);background:var(--c-primary-tint);text-decoration:none}
.main-nav .nav-link.is-active{color:var(--c-primary);font-weight:600;background:transparent}
.main-nav .nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:auto;flex-shrink:0}
.link-quiet{font-size:14px;color:var(--c-text-2);font-weight:500}
.link-quiet:hover{color:var(--c-primary);text-decoration:none}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 24px;border-radius:var(--r-md);
  font-family:inherit;font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  background:var(--c-primary);color:#fff;text-decoration:none;
  transition:background .2s ease,box-shadow .2s ease,transform .2s ease,color .2s ease,border-color .2s ease;
}
.btn:hover{background:var(--c-primary-600);color:#fff;text-decoration:none;box-shadow:var(--sh-2);transform:translateY(-1px)}
.btn:active{background:var(--c-primary-700);transform:translateY(0);box-shadow:var(--sh-1)}
.btn:focus-visible{outline:3px solid rgba(18,99,198,.28);outline-offset:2px}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:var(--c-accent-600);color:#fff}
.btn-accent:active{background:var(--c-accent-700)}
.btn-outline{background:var(--c-surface);color:var(--c-primary);border-color:var(--c-primary-soft)}
.btn-outline:hover{background:var(--c-primary-tint);color:var(--c-primary-600);border-color:var(--c-primary-soft)}
.btn-outline:active{background:var(--c-primary-soft);color:var(--c-primary-700)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;border-radius:10px}
.btn-lg{min-height:52px;padding:0 30px;font-size:16px}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--c-primary);
  padding:4px 0;background:none;border:0;cursor:pointer;
}
.btn-text:hover{color:var(--c-primary-600);text-decoration:none;box-shadow:inset 0 -1px 0 var(--c-primary)}
.btn-text svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ============ 标签 / 徽章 ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;line-height:1.7;
  background:var(--c-primary-tint);color:var(--c-primary-600);
}
.tag--accent{background:var(--c-accent-tint);color:var(--c-accent)}
.tag--teal{background:var(--c-teal-tint);color:var(--c-teal)}
.tag--plain{background:var(--c-surface-2);color:var(--c-text-2)}

/* ============ 首屏 ============ */
.page-hero{
  position:relative;
  padding:72px 0 64px;
  background:
    linear-gradient(180deg,#FFFFFF 0%,var(--c-bg) 100%);
  overflow:hidden;
  border-bottom:1px solid var(--c-border);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(18,99,198,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(18,99,198,.055) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.65),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.65),transparent 78%);
  pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(18,99,198,.10),rgba(18,99,198,0) 68%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}
.crumbs{font-size:13px;margin-bottom:26px}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumbs a{color:var(--c-text-2)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .sep{color:var(--c-text-3)}
.crumbs [aria-current]{color:var(--c-text-3)}
.hero-badge{margin-bottom:18px}
.page-hero h1{max-width:820px;margin-bottom:18px}
.hero-lead{
  max-width:680px;font-size:17px;line-height:1.85;color:var(--c-text-2);margin-bottom:28px;
}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:34px;margin-top:36px;
  padding-top:28px;border-top:1px solid var(--c-border);
}
.hero-stats .stat{min-width:130px}
.hero-stats .stat b{
  display:block;font-size:28px;font-weight:700;color:var(--c-primary);line-height:1.2;
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.hero-stats .stat span{font-size:13px;color:var(--c-text-3)}

/* ============ 区块 ============ */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--surface{background:var(--c-surface)}
.section--soft{background:var(--c-surface-2)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--c-text-2);font-size:16px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}

/* ============ Z 字图文 ============ */
.zigzag{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:52px 0;
}
.zigzag + .zigzag{border-top:1px solid var(--c-border)}
.zigzag--reverse .zigzag__media{order:2}
.zigzag__media{
  border-radius:var(--r-lg);overflow:hidden;background:var(--c-surface-2);
  border:1px solid var(--c-border);box-shadow:var(--sh-1);
}
.zigzag__media img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg)}
.zigzag__body h2{margin:16px 0 16px}
.zigzag__body > p{color:var(--c-text-2);font-size:16px}

/* ============ 清单 ============ */
.checklist{margin-top:22px;display:grid;gap:12px}
.checklist li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;line-height:1.75;color:var(--c-text-2);
}
.checklist .ico{
  flex:0 0 22px;width:22px;height:22px;margin-top:4px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-teal-tint);
}
.checklist .ico svg{width:13px;height:13px;stroke:var(--c-teal);fill:none;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.checklist strong{color:var(--c-text);font-weight:600}

/* ============ 提醒卡 ============ */
.notice-card{
  background:var(--c-surface);
  border:1.5px solid var(--c-primary-soft);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  padding:34px 36px;
  position:relative;
  overflow:hidden;
}
.notice-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--c-primary);
}
.notice-card .notice-head{display:flex;align-items:center;gap:14px;margin-bottom:8px}
.notice-card .notice-icon{
  width:44px;height:44px;border-radius:calc(var(--r-md) + 2px);flex:0 0 44px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary-tint);
}
.notice-card .notice-icon svg{width:22px;height:22px;stroke:var(--c-primary);fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.notice-card h2{font-size:22px}
.notice-card > p{color:var(--c-text-2);font-size:15px;margin-top:6px}
.notice-list{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px;
}
.notice-list li{
  background:var(--c-surface-2);border:1px solid var(--c-border);border-radius:var(--r-md);
  padding:18px 20px;font-size:14.5px;line-height:1.75;color:var(--c-text-2);
}
.notice-list li b{display:block;color:var(--c-text);font-size:15px;margin-bottom:6px;font-weight:600}

/* ============ 核对表 ============ */
.table-wrap{
  border:1px solid var(--c-border);border-radius:var(--r-lg);background:var(--c-surface);
  box-shadow:var(--sh-1);overflow:hidden;
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.mks-table{width:100%;border-collapse:collapse;min-width:640px}
table.mks-table thead th{
  background:var(--c-surface-2);color:var(--c-text);font-size:14px;font-weight:700;
  text-align:left;padding:16px 22px;border-bottom:1px solid var(--c-border);
  white-space:nowrap;
}
table.mks-table td{
  padding:16px 22px;font-size:14.5px;color:var(--c-text-2);line-height:1.7;
  border-bottom:1px solid var(--c-border);vertical-align:top;
}
table.mks-table tbody tr:last-child td{border-bottom:0}
table.mks-table tbody tr:hover{background:var(--c-primary-tint)}
table.mks-table td:first-child{color:var(--c-text);font-weight:600;white-space:nowrap}
.table-note{font-size:13px;color:var(--c-text-3);padding:14px 22px;background:var(--c-surface)}

/* ============ FAQ ============ */
.mks-accordion .accordion-item{
  background:var(--c-surface);border:1px solid var(--c-border)!important;
  border-radius:var(--r-md)!important;box-shadow:var(--sh-1);
  margin-bottom:12px;overflow:hidden;
}
.mks-accordion .accordion-header{margin:0}
.mks-accordion .accordion-button{
  background:var(--c-surface);color:var(--c-text);
  font-size:16px;font-weight:600;line-height:1.6;
  padding:18px 56px 18px 22px;box-shadow:none!important;border-radius:var(--r-md)!important;
  transition:background .2s ease,color .2s ease;
}
.mks-accordion .accordion-button:not(.collapsed){
  background:rgba(234,242,253,.72);color:var(--c-primary-600);
}
.mks-accordion .accordion-button:hover{background:var(--c-primary-tint)}
.mks-accordion .accordion-button::after{
  width:20px;height:20px;background-size:20px;margin-left:auto;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%231263C6' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E");
  transition:transform .22s ease;
}
.mks-accordion .accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.mks-accordion .accordion-body{
  padding:4px 22px 22px;font-size:15px;line-height:1.85;color:var(--c-text-2);
  background:rgba(234,242,253,.35);
}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--c-primary-tint);
  border-top:1px solid var(--c-primary-soft);
  border-bottom:1px solid var(--c-primary-soft);
  padding:84px 0;
  text-align:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(18,99,198,.16) 1.4px,transparent 1.4px);
  background-size:22px 22px;opacity:.5;pointer-events:none;
}
.cta-band .container{position:relative;z-index:1}
.cta-band h2{margin-bottom:14px}
.cta-band p{max-width:640px;margin:0 auto 30px;color:var(--c-text-2);font-size:16px}
.cta-band .btn-row{justify-content:center}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-surface-2);
  border-top:1px solid var(--c-border);
  padding:70px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:44px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--c-text-2);max-width:380px}
.footer-col h4{
  font-size:14px;font-weight:700;color:var(--c-text);margin-bottom:18px;letter-spacing:0;
}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:var(--c-text-2)}
.footer-col a:hover{color:var(--c-primary)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--c-text-2);line-height:1.7}
.footer-contact i{color:var(--c-primary);font-size:15px;line-height:1.7}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding:22px 0 26px;border-top:1px solid var(--c-border);
  font-size:13px;color:var(--c-text-3);
}

/* ============ 移动端底部 Tab ============ */
.mobile-tabbar{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:1050;
  background:var(--c-surface);
  border-top:1px solid var(--c-border);
  box-shadow:0 -4px 16px rgba(18,45,80,.06);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tabbar .tabbar__item{
  flex:1 1 0;min-height:56px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:10.5px;color:var(--c-text-3);
  transition:color .15s ease;
}
.mobile-tabbar .tabbar__item:hover{text-decoration:none;color:var(--c-primary-600)}
.mobile-tabbar .tabbar__item svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.mobile-tabbar .tabbar__item span{position:relative;padding-bottom:5px}
.mobile-tabbar .tabbar__item.is-active{color:var(--c-primary);font-weight:600}
.mobile-tabbar .tabbar__item.is-active span::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:0;
  width:14px;height:3px;border-radius:2px;background:var(--c-primary);
}

/* ============ 入场动画 ============ */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .5s ease,transform .5s ease}
.reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .main-nav .nav-link{padding:10px 9px;font-size:14px}
  .header-actions .link-quiet{display:none}
}
@media (max-width:991.98px){
  body{padding-bottom:72px}
  .main-nav{display:none}
  .header-inner{min-height:64px}
  .mobile-tabbar{display:flex}
  .section{padding:64px 0}
  .page-hero{padding:48px 0 44px}
  .zigzag{gap:32px;padding:36px 0;grid-template-columns:1fr}
  .zigzag--reverse .zigzag__media{order:0}
  .zigzag__media img{aspect-ratio:16/9}
  .notice-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .cta-band{padding:64px 0}
}
@media (max-width:767.98px){
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .hero-stats{gap:24px;margin-top:28px;padding-top:22px}
  .hero-stats .stat{min-width:108px}
  .hero-stats .stat b{font-size:23px}
  .notice-card{padding:26px 22px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:575.98px){
  .brand__text span{display:none}
  .hero-lead{font-size:16px}
  .btn{width:100%}
  .btn-row{flex-direction:column;align-items:stretch}
  .btn-text{width:auto;justify-content:flex-start}
  .btn-sm{width:auto}
}

/* roulang page: category4 */
:root{
  --c-primary:#1263C6;--c-primary-600:#0F55AC;--c-primary-700:#0C468C;
  --c-primary-tint:#EAF2FD;--c-primary-soft:#D7E6FA;
  --c-accent:#FF7A29;--c-accent-600:#E96A1B;--c-accent-tint:#FFF1E7;
  --c-teal:#12A594;--c-teal-tint:#E4F6F3;
  --c-bg:#F5F8FC;--c-surface:#FFFFFF;--c-surface-2:#F0F5FB;
  --c-border:#E3EAF3;--c-text:#16212E;--c-text-2:#5B6B7F;--c-text-3:#8A99AB;
  --c-success:#16A34A;--c-danger:#E5484D;
  --r-sm:8px;--r-md:12px;--r-lg:16px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(18,45,80,.05),0 2px 8px rgba(18,45,80,.04);
  --sh-2:0 8px 24px rgba(18,45,80,.07);
  --sh-3:0 16px 40px rgba(18,45,80,.10);
  --font-sans:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --bs-primary:#1263C6;
  --bs-body-color:#16212E;
  --bs-body-font-family:var(--font-sans);
  --bs-border-color:#E3EAF3;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;font-family:var(--font-sans);font-size:16px;line-height:1.8;
  color:var(--c-text);background:var(--c-bg);-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-600);}
h1,h2,h3,h4{margin:0;color:var(--c-text);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(18,99,198,.28);outline-offset:2px;}
.container{padding-left:24px;padding-right:24px;}
@media (min-width:1400px){.container{max-width:1320px;}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-md);font-weight:600;font-size:15px;line-height:1;
  padding:13px 24px;min-height:44px;border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.btn-sm{padding:10px 18px;font-size:14px;min-height:40px;}
.btn-primary,.btn-accent{color:#fff;}
.btn-primary{background:var(--c-primary);}
.btn-primary:hover{background:var(--c-primary-600);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px);}
.btn-primary:active{background:var(--c-primary-700);transform:translateY(0);}
.btn-accent{background:var(--c-accent);}
.btn-accent:hover{background:var(--c-accent-600);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px);}
.btn-accent:active{background:#D25F14;transform:translateY(0);}
.btn-outline{
  background:var(--c-surface);color:var(--c-primary);border-color:var(--c-primary-soft);
}
.btn-outline:hover{background:var(--c-primary-tint);color:var(--c-primary-600);border-color:var(--c-primary);box-shadow:var(--sh-1);transform:translateY(-1px);}
.btn-text{
  background:transparent;color:var(--c-primary);padding:8px 2px;min-height:auto;
  border-radius:4px;font-weight:600;
}
.btn-text:hover{color:var(--c-primary-600);text-decoration:underline;text-underline-offset:4px;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .2s ease,height .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;transition:height .2s ease;}
.site-header.is-scrolled .header-inner{height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand__mark{
  width:38px;height:38px;border-radius:10px;background:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
}
.brand__mark svg{width:22px;height:22px;stroke:#fff;}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__text b{font-size:16px;font-weight:700;letter-spacing:.6px;color:var(--c-text);}
.brand__text span{font-size:12.5px;color:var(--c-text-2);letter-spacing:.5px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:12px;flex:1;flex-wrap:nowrap;}
.nav-link{
  position:relative;padding:10px 12px;font-size:15px;font-weight:500;color:var(--c-text-2);
  border-radius:var(--r-sm);white-space:nowrap;transition:color .2s ease,background-color .2s ease;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-tint);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:16px;flex-shrink:0;}
.link-quiet{font-size:14.5px;color:var(--c-text-2);font-weight:500;}
.link-quiet:hover{color:var(--c-primary);}
.header-actions .btn{white-space:nowrap;}

/* ============ 面包屑 ============ */
.crumb-bar{background:var(--c-surface);border-bottom:1px solid var(--c-border);}
.crumb-bar .container{padding-top:14px;padding-bottom:14px;}
.breadcrumb{
  margin:0;padding:0;background:transparent;font-size:13px;display:flex;flex-wrap:wrap;gap:8px;align-items:center;
}
.breadcrumb li{color:var(--c-text-3);display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"›";color:var(--c-text-3);}
.breadcrumb a{color:var(--c-text-2);}
.breadcrumb a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}

/* ============ 页面 Hero ============ */
.page-hero{
  position:relative;background:linear-gradient(180deg,#FFFFFF 0%,var(--c-bg) 100%);
  padding:64px 0 72px;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(18,99,198,.06) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(18,99,198,.06) 1px,transparent 1px);
  background-size:56px 56px;pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.badge-pill{
  display:inline-flex;align-items:center;gap:8px;border-radius:var(--r-pill);
  padding:5px 14px;font-size:12.5px;font-weight:600;letter-spacing:.3px;
}
.badge-primary{background:var(--c-primary-tint);color:var(--c-primary-600);}
.badge-accent{background:var(--c-accent-tint);color:var(--c-accent);}
.badge-teal{background:var(--c-teal-tint);color:#0B7C6F;}
.page-hero h1{
  font-size:clamp(28px,3.6vw,44px);font-weight:700;line-height:1.25;letter-spacing:-.5px;
  margin:20px 0 18px;
}
.hero-sub{font-size:17px;line-height:1.85;color:var(--c-text-2);max-width:42em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:30px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:40px;margin-top:40px;padding-top:28px;border-top:1px solid var(--c-border);}
.hero-stat b{display:block;font-size:28px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.2;}
.hero-stat span{font-size:13px;color:var(--c-text-3);}
.hero-media{
  position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-3);
  background:var(--c-surface-2);aspect-ratio:16/11;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(18,99,198,.05),rgba(12,70,140,.28));
}
.hero-media__tag{
  position:absolute;left:20px;bottom:20px;z-index:3;background:rgba(255,255,255,.94);
  border-radius:var(--r-md);padding:12px 16px;box-shadow:var(--sh-2);
}
.hero-media__tag b{display:block;font-size:15px;color:var(--c-text);}
.hero-media__tag span{font-size:12.5px;color:var(--c-text-2);}

/* ============ 通用板块 ============ */
.section{padding:92px 0;}
.section-alt{background:var(--c-surface);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:clamp(22px,2.4vw,32px);font-weight:700;line-height:1.3;margin-bottom:14px;}
.section-head p{color:var(--c-text-2);font-size:16px;}
.section-head--split{
  max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.section-head--split .head-copy{max-width:680px;}

/* ============ 图库卡片网格 ============ */
.gallery-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.gallery-card{
  position:relative;display:block;border-radius:var(--r-lg);overflow:hidden;
  background:var(--c-surface-2);box-shadow:var(--sh-1);border:1px solid var(--c-border);
  transition:box-shadow .22s ease,transform .22s ease;
}
.gallery-card:hover{box-shadow:var(--sh-3);transform:translateY(-2px);}
.gallery-card__media{position:relative;aspect-ratio:16/9;overflow:hidden;}
.gallery-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.gallery-card:hover .gallery-card__media img{transform:scale(1.03);}
.gallery-card__mask{
  position:absolute;inset:0;display:flex;align-items:flex-end;padding:22px;
  background:linear-gradient(180deg,rgba(10,32,60,.10) 34%,rgba(10,32,60,.72) 100%);
  transition:background .25s ease;
}
.gallery-card:hover .gallery-card__mask{
  background:linear-gradient(180deg,rgba(10,32,60,.26) 26%,rgba(10,32,60,.84) 100%);
}
.gallery-card__mask h3{color:#fff;font-size:19px;font-weight:600;line-height:1.4;}
.gallery-card__mask p{color:rgba(255,255,255,.86);font-size:13.5px;line-height:1.6;margin-top:6px;}
.gallery-card__foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:16px 22px;background:var(--c-surface);
}
.gallery-card__foot span{font-size:13px;color:var(--c-text-2);}
.gallery-card__foot em{
  font-style:normal;font-size:13px;font-weight:600;color:var(--c-primary);
  display:inline-flex;align-items:center;gap:6px;
}

/* ============ 对照表格 ============ */
.table-wrap{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
}
.table-scroll{overflow-x:auto;}
table.spec{width:100%;border-collapse:collapse;min-width:720px;}
table.spec thead th{
  background:var(--c-surface-2);color:var(--c-text);font-size:14px;font-weight:700;
  text-align:left;padding:16px 22px;border-bottom:1px solid var(--c-border);white-space:nowrap;
}
table.spec tbody td{
  padding:18px 22px;font-size:14.5px;color:var(--c-text-2);border-bottom:1px solid var(--c-border);
  vertical-align:top;line-height:1.75;
}
table.spec tbody tr:last-child td{border-bottom:none;}
table.spec tbody tr:hover td{background:var(--c-primary-tint);}
table.spec tbody td:first-child{color:var(--c-text);font-weight:600;}
.dot-tag{
  display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;
  background:var(--c-teal-tint);color:#0B7C6F;border-radius:var(--r-pill);padding:3px 11px;
}
.dot-tag.is-warn{background:var(--c-accent-tint);color:var(--c-accent);}

/* ============ 检查清单 ============ */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:8px;}
.check-card{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);transition:box-shadow .22s ease,transform .22s ease;
}
.check-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.check-card__icon{
  width:46px;height:46px;border-radius:12px;background:var(--c-primary-tint);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.check-card__icon i{font-size:22px;color:var(--c-primary);}
.check-card h3{font-size:18px;font-weight:600;margin-bottom:10px;}
.check-card p{font-size:14.5px;color:var(--c-text-2);line-height:1.75;}
.check-card ul{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.check-card ul li{
  position:relative;padding-left:20px;font-size:14px;color:var(--c-text-2);
}
.check-card ul li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:var(--c-teal);
}

/* ============ 提示条 ============ */
.notice{
  display:flex;gap:16px;align-items:flex-start;background:var(--c-surface);
  border:1px solid var(--c-primary-soft);border-left:4px solid var(--c-primary);
  border-radius:var(--r-md);padding:22px 24px;box-shadow:var(--sh-1);margin-top:32px;
}
.notice i{font-size:22px;color:var(--c-primary);flex-shrink:0;line-height:1.4;}
.notice h3{font-size:16px;font-weight:700;margin-bottom:6px;}
.notice p{font-size:14.5px;color:var(--c-text-2);line-height:1.75;}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.accordion-item{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
}
.accordion-button{
  width:100%;text-align:left;background:var(--c-surface);color:var(--c-text);
  font-size:16px;font-weight:600;padding:20px 24px;border:none;display:flex;
  align-items:center;justify-content:space-between;gap:16px;
  transition:background-color .2s ease,color .2s ease;
}
.accordion-button:hover{background:var(--c-primary-tint);color:var(--c-primary-600);}
.accordion-button:not(.collapsed){color:var(--c-primary);background:rgba(234,242,253,.55);box-shadow:none;}
.accordion-button::after{display:none;}
.accordion-button .acc-icon{
  flex-shrink:0;width:22px;height:22px;position:relative;transition:transform .22s ease;
}
.accordion-button .acc-icon svg{width:22px;height:22px;stroke:var(--c-primary);}
.accordion-button:not(.collapsed) .acc-icon{transform:rotate(180deg);}
.accordion-body{padding:0 24px 22px;font-size:15px;color:var(--c-text-2);line-height:1.85;}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;background:var(--c-primary-tint);padding:80px 0;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(18,99,198,.18) 1.4px,transparent 1.4px);
  background-size:22px 22px;opacity:.5;pointer-events:none;
}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:720px;margin:0 auto;}
.cta-inner h2{font-size:clamp(22px,2.4vw,32px);font-weight:700;line-height:1.3;margin-bottom:16px;}
.cta-inner p{color:var(--c-text-2);font-size:16px;margin-bottom:30px;}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-surface-2);border-top:1px solid var(--c-border);padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{font-size:14px;color:var(--c-text-2);line-height:1.8;max-width:34em;}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:18px;color:var(--c-text);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:var(--c-text-2);}
.footer-col a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.footer-contact li{display:flex;align-items:flex-start;gap:8px;font-size:14px;color:var(--c-text-2);line-height:1.7;}
.footer-contact i{color:var(--c-primary);font-size:15px;margin-top:4px;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--c-border);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);
}

/* ============ 移动端底部 Tab ============ */
.mobile-tab{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;display:none;
  background:var(--c-surface);border-top:1px solid var(--c-border);
  box-shadow:0 -4px 16px rgba(18,45,80,.06);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tab__inner{display:flex;height:56px;}
.mobile-tab a{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  color:var(--c-text-3);font-size:10.5px;min-width:44px;
  transition:color .15s ease;position:relative;
}
.mobile-tab a i{font-size:20px;line-height:1;}
.mobile-tab a.is-active{color:var(--c-primary);}
.mobile-tab a.is-active::after{
  content:"";position:absolute;bottom:6px;width:16px;height:3px;border-radius:2px;background:var(--c-primary);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .main-nav{margin-left:0;gap:0;}
  .nav-link{padding:10px 9px;font-size:14.5px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media{aspect-ratio:16/9;}
}
@media (max-width:991.98px){
  body{padding-bottom:72px;}
  .main-nav{display:none;}
  .header-inner{gap:16px;}
  .header-actions .link-quiet{display:none;}
  .mobile-tab{display:block;}
  .section{padding:64px 0;}
  .page-hero{padding:48px 0 56px;}
  .cta-band{padding:64px 0;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
}
@media (max-width:767.98px){
  .gallery-grid{grid-template-columns:1fr;}
  .check-grid{grid-template-columns:1fr;}
  .hero-stats{gap:28px;}
  .hero-stat b{font-size:24px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
}
@media (max-width:575.98px){
  .container{padding-left:20px;padding-right:20px;}
  body{font-size:15.5px;}
  .gallery-card__mask{padding:18px;}
  .gallery-card__mask h3{font-size:17px;}
  .check-card{padding:22px;}
  .hero-actions .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category5 */
:root{
  --c-primary:#1263C6;
  --c-primary-600:#0F55AC;
  --c-primary-700:#0C468C;
  --c-primary-tint:#EAF2FD;
  --c-primary-soft:#D7E6FA;
  --c-accent:#FF7A29;
  --c-accent-tint:#FFF1E7;
  --c-teal:#12A594;
  --c-teal-tint:#E6F6F4;
  --c-bg:#F5F8FC;
  --c-surface:#FFFFFF;
  --c-surface-2:#F0F5FB;
  --c-border:#E3EAF3;
  --c-text:#16212E;
  --c-text-2:#5B6B7F;
  --c-text-3:#8A99AB;
  --c-success:#16A34A;
  --c-danger:#E5484D;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,45,80,.05),0 2px 8px rgba(18,45,80,.04);
  --sh-2:0 8px 24px rgba(18,45,80,.07);
  --sh-3:0 16px 40px rgba(18,45,80,.10);

  --bs-primary:#1263C6;
  --bs-primary-rgb:18,99,198;
  --bs-body-color:#16212E;
  --bs-body-bg:#F5F8FC;
  --bs-border-color:#E3EAF3;
  --bs-link-color:#1263C6;
  --bs-link-hover-color:#0F55AC;
  --bs-border-radius:12px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-600);}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.num{font-variant-numeric:tabular-nums;}
.container{max-width:1320px;padding-left:24px;padding-right:24px;}
@media (max-width:1399.98px){.container{max-width:1140px;}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.header-inner{
  display:flex;align-items:center;gap:28px;
  height:72px;transition:height .2s ease;
}
.site-header.is-scrolled .header-inner{height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand__mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,var(--c-primary),#2b7ee0);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(18,99,198,.22);
}
.brand__mark svg{width:21px;height:21px;stroke:#fff;}
.brand__text{display:flex;flex-direction:column;line-height:1.15;}
.brand__text b{font-size:16px;font-weight:800;letter-spacing:.4px;color:var(--c-text);}
.brand__text span{font-size:12px;color:var(--c-text-3);letter-spacing:.5px;}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-link{
  position:relative;
  padding:9px 13px;border-radius:var(--r-sm);
  font-size:14.5px;font-weight:500;color:var(--c-text-2);
  white-space:nowrap;transition:color .2s ease,background-color .2s ease;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-tint);}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  border-radius:2px;background:var(--c-primary);
  transform:scaleX(0);transform-origin:center;transition:transform .2s ease;
}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto;}
.link-quiet{font-size:14px;color:var(--c-text-2);}
.link-quiet:hover{color:var(--c-primary);}

/* ============ 按钮 ============ */
.btn{
  --bs-btn-focus-box-shadow:none;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 24px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.btn:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(18,99,198,.28);}
.btn-primary{
  background:var(--c-primary);color:#fff;
}
.btn-primary:hover{background:var(--c-primary-600);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px);}
.btn-primary:active{background:var(--c-primary-700);transform:translateY(0);}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover{background:#ef6a17;color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px);}
.btn-accent:active{background:#dd5f0f;transform:translateY(0);}
.btn-outline{
  background:#fff;color:var(--c-primary);border-color:var(--c-primary-soft);
}
.btn-outline:hover{background:var(--c-primary-tint);color:var(--c-primary-600);border-color:var(--c-primary-soft);box-shadow:var(--sh-1);transform:translateY(-1px);}
.btn-sm{min-height:38px;padding:8px 18px;font-size:14px;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-size:14.5px;font-weight:600;
  border-bottom:1px solid transparent;padding-bottom:2px;transition:border-color .2s ease,color .2s ease;
}
.btn-text:hover{border-bottom-color:var(--c-primary);color:var(--c-primary-600);}

/* ============ 徽章 ============ */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;line-height:1.7;
  background:var(--c-primary-tint);color:var(--c-primary-600);
}
.badge-accent{background:var(--c-accent-tint);color:#c85a12;}
.badge-teal{background:var(--c-teal-tint);color:#0a7d70;}

/* ============ 面包屑 ============ */
.crumb-bar{background:var(--c-surface);border-bottom:1px solid var(--c-border);}
.breadcrumb{
  --bs-breadcrumb-divider:"›";
  margin:0;padding:14px 0;font-size:13px;
}
.breadcrumb-item{color:var(--c-text-3);}
.breadcrumb-item a{color:var(--c-text-2);}
.breadcrumb-item a:hover{color:var(--c-primary);}
.breadcrumb-item.active{color:var(--c-text-3);}
.breadcrumb-item+.breadcrumb-item::before{color:var(--c-text-3);}

/* ============ 页面头部 ============ */
.page-hero{
  position:relative;overflow:hidden;
  background-color:#0f3f7d;
  background-image:linear-gradient(100deg,rgba(9,42,84,.94) 0%,rgba(18,99,198,.86) 55%,rgba(18,99,198,.62) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  color:#fff;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:48px 48px;pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;padding-top:72px;padding-bottom:72px;}
.page-hero h1{
  color:#fff;font-size:clamp(28px,3.6vw,44px);font-weight:700;line-height:1.25;letter-spacing:-.5px;
  margin:18px 0 16px;max-width:900px;
}
.page-hero p.lede{max-width:760px;font-size:16.5px;line-height:1.85;color:rgba(255,255,255,.88);}
.hero-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);
  font-size:12.5px;font-weight:600;letter-spacing:.5px;color:#fff;
}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:28px;}
.hero-actions .btn-outline{background:rgba(255,255,255,.95);}
.hero-actions .btn-ghost{
  display:inline-flex;align-items:center;gap:6px;
  color:rgba(255,255,255,.9);font-size:14.5px;font-weight:600;
  border-bottom:1px solid rgba(255,255,255,.35);padding-bottom:2px;
}
.hero-actions .btn-ghost:hover{color:#fff;border-bottom-color:#fff;}

.hero-metrics{
  display:flex;flex-wrap:wrap;gap:14px 48px;margin-top:36px;
  padding-top:26px;border-top:1px solid rgba(255,255,255,.18);
}
.metric b{display:block;font-size:26px;font-weight:700;color:#fff;letter-spacing:-.5px;}
.metric span{font-size:13px;color:rgba(255,255,255,.75);}

/* ============ 通用区块 ============ */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--soft{background:var(--c-surface-2);}
.section--surface{background:var(--c-surface);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{font-size:clamp(22px,2.4vw,32px);line-height:1.3;margin:12px 0 14px;}
.section-head p{color:var(--c-text-2);font-size:15.5px;line-height:1.8;}

/* ============ 问答主体布局 ============ */
.faq-layout{display:grid;grid-template-columns:252px minmax(0,1fr);gap:44px;align-items:start;}
.anchor-nav{
  position:sticky;top:96px;
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
  padding:18px 16px;
}
.anchor-nav h2{font-size:14px;font-weight:700;color:var(--c-text);margin-bottom:12px;letter-spacing:.3px;}
.anchor-nav ul{display:flex;flex-direction:column;gap:4px;}
.anchor-nav a{
  display:flex;align-items:center;gap:8px;
  padding:9px 12px;border-radius:var(--r-sm);
  font-size:14px;font-weight:500;color:var(--c-text-2);
  transition:background-color .18s ease,color .18s ease;
}
.anchor-nav a::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--c-primary-soft);transition:background-color .18s ease;
  flex:0 0 auto;
}
.anchor-nav a:hover{background:var(--c-primary-tint);color:var(--c-primary);}
.anchor-nav a.is-active{background:var(--c-primary-tint);color:var(--c-primary);font-weight:600;}
.anchor-nav a.is-active::before{background:var(--c-accent);}
.anchor-note{
  margin-top:16px;padding-top:16px;border-top:1px dashed var(--c-border);
  font-size:13px;line-height:1.7;color:var(--c-text-3);
}

.faq-group{margin-bottom:52px;scroll-margin-top:100px;}
.faq-group:last-child{margin-bottom:0;}
.group-head{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.group-head h2{font-size:22px;font-weight:700;line-height:1.35;}
.group-ico{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-tint);color:var(--c-primary);font-size:18px;
}
.group-head p{flex:1 1 100%;}

.faq-item{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-md);box-shadow:var(--sh-1);
  margin-bottom:12px;overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item:hover{box-shadow:var(--sh-2);border-color:var(--c-primary-soft);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:17px 20px;background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-text);cursor:pointer;line-height:1.6;
}
.faq-q:focus-visible{outline:none;box-shadow:inset 0 0 0 3px rgba(18,99,198,.28);}
.faq-q .faq-ico{
  flex:0 0 auto;width:22px;height:22px;color:var(--c-primary);
  transition:transform .22s ease;
}
.faq-q[aria-expanded="true"] .faq-ico{transform:rotate(180deg);}
.faq-a{
  padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--c-text-2);
}
.faq-item:has(.faq-q[aria-expanded="true"]){background:linear-gradient(180deg,#fff 0%,#F7FAFE 100%);border-color:var(--c-primary-soft);}

/* ============ 时效表区块 ============ */
.timing-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:40px;align-items:center;}
.table-wrap{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden;
}
.table-wrap .table{margin:0;--bs-table-bg:transparent;}
.table thead th{
  background:var(--c-surface-2);color:var(--c-text);
  font-size:14px;font-weight:700;padding:14px 18px;border-bottom:1px solid var(--c-border);
}
.table tbody td{
  padding:14px 18px;font-size:14.5px;color:var(--c-text-2);border-bottom:1px solid var(--c-border);
  vertical-align:top;
}
.table tbody tr:last-child td{border-bottom:0;}
.table tbody tr:hover td{background:var(--c-primary-tint);}
.table td .tag{
  display:inline-block;padding:3px 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;background:var(--c-teal-tint);color:#0a7d70;
}

.figure-card{
  border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--c-border);box-shadow:var(--sh-2);background:var(--c-surface-2);
}
.figure-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.figure-card figcaption{
  padding:14px 18px;font-size:13px;color:var(--c-text-3);background:var(--c-surface);
}

/* ============ 自助排查清单 ============ */
.check-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 24px;}
.check-item{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-md);box-shadow:var(--sh-1);
  padding:20px 22px;transition:box-shadow .2s ease,transform .2s ease;
}
.check-item:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.check-item i{color:var(--c-teal);font-size:20px;line-height:1.4;flex:0 0 auto;}
.check-item h3{font-size:16px;font-weight:600;margin-bottom:6px;}
.check-item p{font-size:14px;line-height:1.7;color:var(--c-text-2);}

/* ============ 服务渠道 ============ */
.channel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.channel-card{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
  padding:26px;display:flex;flex-direction:column;gap:12px;
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.channel-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--c-primary-soft);}
.channel-card .ico{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-tint);color:var(--c-primary);font-size:20px;
}
.channel-card h3{font-size:18px;font-weight:600;}
.channel-card p{font-size:14.5px;line-height:1.75;color:var(--c-text-2);}
.channel-card .val{font-size:15px;font-weight:600;color:var(--c-primary);word-break:break-all;}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--c-primary-tint);
  border-top:1px solid var(--c-primary-soft);border-bottom:1px solid var(--c-primary-soft);
  padding:72px 0;text-align:center;
}
.cta-band::before{
  content:"";position:absolute;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,99,198,.14),transparent 70%);
  left:-80px;top:-100px;
}
.cta-band::after{
  content:"";position:absolute;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,41,.16),transparent 70%);
  right:-60px;bottom:-110px;
}
.cta-band .container{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);margin-bottom:14px;}
.cta-band p{max-width:660px;margin:0 auto 28px;color:var(--c-text-2);font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-surface-2);border-top:1px solid var(--c-border);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--c-text-2);max-width:340px;}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--c-text);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{font-size:14px;color:var(--c-text-2);}
.footer-col a:hover{color:var(--c-primary);}
.footer-contact li{display:flex;gap:9px;font-size:14px;color:var(--c-text-2);line-height:1.7;}
.footer-contact i{color:var(--c-primary);font-size:15px;line-height:1.7;flex:0 0 auto;}
.footer-bottom{
  border-top:1px solid var(--c-border);padding:20px 0 24px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:var(--c-text-3);
}

/* ============ 移动端底部 Tab ============ */
.mobile-tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:1040;
  background:var(--c-surface);border-top:1px solid var(--c-border);
  box-shadow:0 -4px 16px rgba(18,45,80,.06);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tabbar a{
  flex:1 1 0;min-height:56px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;
  font-size:10.5px;color:var(--c-text-3);
  transition:color .15s ease;
}
.mobile-tabbar a i{font-size:21px;line-height:1;position:relative;}
.mobile-tabbar a.is-active{color:var(--c-primary);}
.mobile-tabbar a.is-active i::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:-6px;width:14px;height:3px;border-radius:3px;background:var(--c-primary);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .faq-layout{grid-template-columns:220px minmax(0,1fr);gap:32px;}
  .timing-grid{grid-template-columns:1fr;gap:32px;}
}
@media (max-width:991.98px){
  body{padding-bottom:72px;}
  .main-nav{display:none;}
  .header-actions .link-quiet{display:none;}
  .mobile-tabbar{display:flex;}
  .faq-layout{grid-template-columns:1fr;gap:24px;}
  .anchor-nav{
    position:sticky;top:64px;z-index:20;
    display:flex;gap:8px;overflow-x:auto;padding:12px;
    border-radius:var(--r-md);
  }
  .anchor-nav h2,.anchor-note{display:none;}
  .anchor-nav ul{flex-direction:row;gap:8px;}
  .anchor-nav a{
    white-space:nowrap;background:var(--c-surface-2);
    border-radius:var(--r-pill);padding:8px 14px;font-size:13.5px;
  }
  .anchor-nav a::before{display:none;}
  .section{padding:64px 0;}
  .channel-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .check-list{grid-template-columns:1fr;}
}
@media (max-width:767.98px){
  .container{padding-left:20px;padding-right:20px;}
  .header-inner{height:64px;gap:14px;}
  .brand__text span{display:none;}
  .page-hero .container{padding-top:52px;padding-bottom:56px;}
  .hero-metrics{gap:14px 32px;}
  .metric b{font-size:22px;}
  .section{padding:52px 0;}
  .channel-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
  .table-wrap{overflow-x:auto;}
  .table{min-width:560px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}
.reveal{opacity:0;transform:translateY(8px);transition:opacity .5s ease,transform .5s ease;}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;}}