/* roulang page: index */
:root{
  --brand:#1A5DD6;
  --brand-hover:#1449A8;
  --brand-soft:#EEF4FF;
  --brand-line:#CFE0FA;
  --accent:#F26B1D;
  --accent-soft:#FFF3EA;
  --ok:#12A87A;
  --warn:#D93B3B;
  --ink:#0F1A2B;
  --ink-2:#5A6B85;
  --ink-3:#8D9BB0;
  --line:#E4EAF2;
  --bg:#F6F9FD;
  --card:#FFFFFF;
  --dark:#0F1A2B;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(16,37,74,.06);
  --sh-2:0 14px 36px rgba(16,37,74,.10);
  --sh-3:0 18px 44px rgba(16,37,74,.12);
  --t:220ms ease;
  --bs-primary:#1A5DD6;
  --bs-body-color:#0F1A2B;
  --bs-link-color:#1A5DD6;
  --bs-link-hover-color:#1449A8;
  --bs-body-font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3;color:var(--ink);}
p{margin:0;}
a{color:var(--brand);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--brand-hover);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.container{max-width:1200px;padding-inline:20px;margin-inline:auto;width:100%;}
.num{font-variant-numeric:tabular-nums;font-weight:700;}

/* ============ 顶部促销条 ============ */
.promo-bar{
  background:linear-gradient(100deg,#F26B1D,#E03A2F);
  color:#fff;
  min-height:44px;
  display:flex;
  align-items:center;
  position:relative;
  z-index:60;
}
.promo-bar.hidden{display:none;}
.promo-inner{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding-block:6px;}
.promo-tag{
  background:rgba(255,255,255,.2);
  border-radius:var(--r-sm);
  padding:2px 10px;
  font-size:13px;
  font-weight:600;
  white-space:nowrap;
}
.promo-text{font-size:14px;font-weight:500;}
.promo-count{display:flex;align-items:center;gap:6px;font-size:13px;}
.promo-count b{
  background:rgba(15,26,43,.28);
  border-radius:6px;
  padding:1px 7px;
  font-variant-numeric:tabular-nums;
  font-weight:700;
}
.promo-close{
  margin-left:auto;
  background:transparent;
  border:0;
  color:rgba(255,255,255,.85);
  font-size:18px;
  line-height:1;
  padding:6px;
  cursor:pointer;
  border-radius:8px;
  transition:background var(--t),color var(--t);
}
.promo-close:hover{background:rgba(255,255,255,.18);color:#fff;}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:50;background:#fff;}
.topbar{background:var(--brand-soft);border-bottom:1px solid var(--brand-line);font-size:13px;color:var(--ink-2);}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:36px;gap:16px;}
.topbar-left{display:flex;gap:22px;align-items:center;}
.topbar-left i{color:var(--brand);margin-right:5px;}
.topbar-right{display:flex;gap:18px;}
.topbar-right a{color:var(--ink-2);font-size:13px;}
.topbar-right a:hover{color:var(--brand);}
.mainnav{background:#fff;border-bottom:1px solid var(--line);transition:box-shadow var(--t);}
.mainnav-inner{display:flex;align-items:center;gap:28px;min-height:68px;transition:min-height var(--t);}
.site-header.scrolled .mainnav{box-shadow:0 6px 20px rgba(16,37,74,.08);}
.site-header.scrolled .mainnav-inner{min-height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:38px;height:38px;flex:0 0 auto;}
.brand-text{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.5px;line-height:1.1;}
.brand-text span{display:block;font-size:11px;font-weight:500;color:var(--ink-3);letter-spacing:3px;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:8px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  border-radius:var(--r-sm);
  transition:color var(--t),background var(--t);
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.active{color:var(--brand);font-weight:600;}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:0;
  height:3px;border-radius:3px;
  background:var(--brand);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:14px;}
.phone-cta{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14px;font-weight:600;color:var(--ink);
  padding:8px 12px;border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:#fff;
  transition:border-color var(--t),color var(--t),box-shadow var(--t);
}
.phone-cta i{color:var(--accent);}
.phone-cta:hover{border-color:var(--brand-line);color:var(--brand);box-shadow:var(--sh-1);}
.menu-toggle{
  display:none;
  width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:var(--r-sm);color:var(--ink);font-size:20px;
  align-items:center;justify-content:center;cursor:pointer;
}
.menu-toggle:hover{border-color:var(--brand-line);color:var(--brand);}

/* 按钮体系 */
.btn-main,.btn-ghost,.btn-promo,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  min-height:44px;cursor:pointer;border:1px solid transparent;
  transition:all var(--t);
  text-align:center;
}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(26,93,214,.22);}
.btn-main:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:0 14px 30px rgba(26,93,214,.28);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{background:#fff;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--brand);color:#fff;}
.btn-promo{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(242,107,29,.24);}
.btn-promo:hover{background:#DD5A10;color:#fff;transform:translateY(-1px);}
.btn-line{background:#fff;border:1px solid var(--line);color:var(--ink);border-radius:var(--r-sm);}
.btn-line:hover{border-color:var(--brand);color:var(--brand);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);}
.link-arrow i{transition:transform var(--t);}
.link-arrow:hover i{transform:translateX(4px);}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,26,43,.45);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);z-index:70;
}
.drawer-mask.show{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;
  width:min(86vw,360px);background:#fff;z-index:80;
  transform:translateX(102%);transition:transform 260ms ease;
  display:flex;flex-direction:column;box-shadow:var(--sh-3);
}
.mobile-drawer.show{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line);}
.drawer-head strong{font-size:16px;}
.drawer-close{background:transparent;border:0;font-size:22px;color:var(--ink-2);cursor:pointer;line-height:1;padding:4px 8px;border-radius:8px;}
.drawer-close:hover{background:var(--brand-soft);color:var(--brand);}
.drawer-links{padding:8px 0;overflow-y:auto;flex:1;}
.drawer-links a{
  display:block;padding:0 20px;line-height:44px;font-size:15px;
  color:var(--ink);border-bottom:1px solid var(--line);
}
.drawer-links a.active{color:var(--brand);font-weight:600;background:var(--brand-soft);}
.drawer-links a:hover{color:var(--brand);}
.drawer-foot{padding:16px 20px;border-top:1px solid var(--line);}
.drawer-foot .btn-main{width:100%;}

/* 移动吸底操作条 */
.mobile-action-bar{
  display:none;
  position:fixed;left:0;right:0;bottom:0;height:56px;z-index:65;
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -6px 18px rgba(16,37,74,.08);
}
.mobile-action-bar a{
  flex:1;display:flex;align-items:center;justify-content:center;gap:6px;
  font-size:15px;font-weight:600;
}
.mobile-action-bar .ma-phone{color:var(--brand);border-right:1px solid var(--line);}
.mobile-action-bar .ma-main{background:var(--brand);color:#fff;}

/* ============ 通用板块 ============ */
.section{padding:72px 0;}
.section-alt{background:#fff;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head.center{margin-inline:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-soft);border:1px solid var(--brand-line);
  border-radius:var(--r-pill);padding:4px 14px;margin-bottom:14px;
}
.h2{font-size:clamp(22px,2.6vw,34px);}
.section-sub{color:var(--ink-2);font-size:16px;margin-top:12px;}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:40px;}
.head-row .section-head{margin-bottom:0;}

/* ============ Hero ============ */
.hero{
  position:relative;
  background:
    radial-gradient(1000px 420px at 88% -10%, rgba(26,93,214,.10), transparent 65%),
    linear-gradient(180deg,#FFFFFF 0%, #F6F9FD 100%);
  padding:64px 0 0;
  overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.hero h1{font-size:clamp(28px,4.2vw,46px);letter-spacing:-.5px;}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{font-size:clamp(17px,1.6vw,20px);color:var(--ink-2);margin-top:18px;max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-metrics{display:flex;flex-wrap:wrap;gap:28px;margin-top:38px;}
.metric{padding-right:28px;border-right:1px solid var(--line);}
.metric:last-child{border-right:0;padding-right:0;}
.metric b{display:block;font-size:24px;color:var(--ink);font-variant-numeric:tabular-nums;}
.metric span{font-size:13px;color:var(--ink-2);}
.hero-visual{position:relative;}
.hero-visual .hero-img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:14px;box-shadow:var(--sh-2);
}
.hero-float{
  position:absolute;right:-12px;bottom:-24px;
  width:min(300px,86%);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px 18px;box-shadow:var(--sh-3);
  transition:transform var(--t);
}
.hero-float:hover{transform:translateY(-4px);}
.hero-float .tag-promo{
  display:inline-block;background:var(--accent-soft);color:var(--accent);
  font-size:12px;font-weight:600;border-radius:6px;padding:3px 9px;
}
.hero-float p{font-size:14px;color:var(--ink-2);margin:8px 0 12px;}
.hero-strip{
  margin-top:56px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  display:grid;grid-template-columns:repeat(4,1fr);
  box-shadow:var(--sh-1);overflow:hidden;
}
.hero-strip div{
  display:flex;align-items:center;gap:10px;
  padding:20px 22px;font-size:14px;color:var(--ink);
  border-right:1px solid var(--line);
}
.hero-strip div:last-child{border-right:0;}
.hero-strip i{font-size:20px;color:var(--brand);}

/* 优惠阶梯 */
.ladder{position:relative;display:grid;gap:18px;}
.ladder-item{
  position:relative;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px 26px;display:grid;
  grid-template-columns:64px 200px 1fr auto;gap:22px;align-items:center;
  box-shadow:var(--sh-1);transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.ladder-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.ladder-item.hl{
  border-left:3px solid var(--accent);
  background:linear-gradient(90deg,var(--accent-soft),#fff 42%);
  border-color:#FBD9C2;
}
.ladder-no{
  width:52px;height:52px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;font-variant-numeric:tabular-nums;
}
.ladder-item.hl .ladder-no{background:var(--accent);color:#fff;}
.ladder-name h3{font-size:21px;}
.ladder-name span{font-size:13px;color:var(--ink-3);}
.ladder-list{display:flex;flex-wrap:wrap;gap:10px 22px;}
.ladder-list li{font-size:14px;color:var(--ink-2);display:flex;align-items:center;gap:7px;}
.ladder-list i{color:var(--ok);font-size:15px;}
.ladder-action{display:flex;flex-direction:column;align-items:flex-end;gap:8px;}
.ladder-threshold{font-size:13px;color:var(--ink-3);}

/* 套餐对比 */
.compare-wrap{overflow-x:auto;padding-bottom:8px;}
.compare{
  display:grid;grid-template-columns:repeat(3,minmax(260px,1fr));gap:22px;
  align-items:start;min-width:840px;
}
.plan{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 24px;box-shadow:var(--sh-1);position:relative;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  display:flex;flex-direction:column;height:100%;
}
.plan:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.plan.recommend{
  border:2px solid var(--brand);
  box-shadow:0 18px 44px rgba(26,93,214,.14);
  margin-top:-8px;padding-top:34px;
}
.plan-flag{
  position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  background:var(--brand);color:#fff;font-size:12px;font-weight:600;
  padding:4px 16px;border-radius:var(--r-pill);white-space:nowrap;
}
.plan-name{font-size:19px;font-weight:600;}
.plan-desc{font-size:13px;color:var(--ink-3);margin-top:4px;}
.plan-price{display:flex;align-items:baseline;gap:8px;margin:18px 0 6px;}
.plan-price b{font-size:38px;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1;}
.plan-price span{font-size:14px;color:var(--ink-2);}
.plan-old{font-size:13px;color:var(--ink-3);text-decoration:line-through;}
.plan-list{margin:20px 0 24px;display:grid;gap:12px;}
.plan-list li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);align-items:flex-start;}
.plan-list i.ok{color:var(--ok);}
.plan-list i.no{color:var(--ink-3);}
.plan .btn-main,.plan .btn-ghost,.plan .btn-line{width:100%;margin-top:auto;}

/* 限时入口 */
.limited{padding:0;background:transparent;}
.limited-band{
  background:linear-gradient(100deg,#F26B1D,#E03A2F);
  color:#fff;
  padding:44px 0;
}
.limited-inner{
  background:rgba(15,26,43,.16);
  border:1px solid rgba(255,255,255,.22);
  border-radius:20px;
  padding:40px;
  display:grid;grid-template-columns:1.4fr 1fr;gap:36px;align-items:center;
}
.limited h2{color:#fff;font-size:clamp(22px,2.6vw,32px);}
.limited p{color:rgba(255,255,255,.9);font-size:15px;margin-top:10px;max-width:520px;}
.countdown{display:flex;gap:12px;margin-top:22px;}
.cd-box{
  width:76px;padding:10px 0;border-radius:14px;background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.26);text-align:center;
}
.cd-box b{display:block;font-size:26px;font-variant-numeric:tabular-nums;color:#fff;line-height:1.2;}
.cd-box span{font-size:12px;color:rgba(255,255,255,.82);}
.progress-card{background:#fff;border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-3);}
.progress-card h4{font-size:17px;color:var(--ink);}
.progress-card .p-num{font-size:28px;color:var(--accent);font-variant-numeric:tabular-nums;font-weight:700;margin:6px 0 2px;}
.progress-track{height:10px;border-radius:var(--r-pill);background:#F0F4FA;overflow:hidden;margin:14px 0 10px;}
.progress-track i{display:block;height:100%;width:73%;border-radius:var(--r-pill);background:linear-gradient(90deg,#F26B1D,#E03A2F);}
.progress-card .p-note{font-size:13px;color:var(--ink-2);margin-bottom:18px;}
.progress-card .btn-promo{width:100%;}

/* 场馆服务（错落两列） */
.split{display:grid;grid-template-columns:7fr 5fr;gap:24px;align-items:stretch;}
.venue-main{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.venue-main:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.venue-main img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.venue-body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.venue-body h3{font-size:22px;}
.venue-body p{font-size:15px;color:var(--ink-2);}
.params{display:flex;flex-wrap:wrap;gap:12px;margin-top:auto;padding-top:16px;border-top:1px dashed var(--line);}
.param{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink);}
.param i{color:var(--brand);font-size:18px;}
.param b{font-variant-numeric:tabular-nums;}
.split-side{display:grid;gap:24px;grid-template-rows:1fr 1fr;}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;display:flex;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.side-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.side-card img{width:42%;aspect-ratio:4/3;object-fit:cover;}
.side-body{padding:20px;display:flex;flex-direction:column;gap:8px;}
.side-body h3{font-size:17px;}
.side-body p{font-size:14px;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* 服务流程 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative;}
.steps::before{
  content:"";position:absolute;top:26px;left:6%;right:6%;height:2px;
  background:linear-gradient(90deg,var(--brand-line),var(--brand),var(--brand-line));
  z-index:0;
}
.step{position:relative;z-index:1;text-align:center;padding:0 8px;}
.step-dot{
  width:52px;height:52px;margin:0 auto 16px;border-radius:50%;
  background:#fff;border:2px solid var(--brand);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:22px;
  box-shadow:0 6px 16px rgba(26,93,214,.16);
}
.step h3{font-size:17px;}
.step p{font-size:14px;color:var(--ink-2);margin-top:6px;}

/* 最新信息（CMS） */
.badge-soft{
  display:inline-block;background:var(--brand-soft);color:var(--brand);
  border:1px solid var(--brand-line);border-radius:6px;
  font-size:12px;font-weight:600;padding:2px 10px;
}
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch;}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.news-feature{display:flex;flex-direction:column;}
.news-feature .news-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.news-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-body h3{font-size:20px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body h3 a{color:var(--ink);}
.news-body h3 a:hover{color:var(--brand);}
.news-excerpt{
  font-size:14px;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;font-size:13px;color:var(--ink-3);flex-wrap:wrap;
}
.news-meta .dot{display:inline-flex;gap:12px;}
.news-side{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.news-mini{display:flex;flex-direction:column;}
.news-mini .news-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.news-mini .news-mini-body{padding:16px;display:flex;flex-direction:column;gap:8px;flex:1;}
.news-mini h3{font-size:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-mini h3 a{color:var(--ink);}
.news-mini h3 a:hover{color:var(--brand);}
.news-mini .news-meta{font-size:12px;}
.empty-state{
  text-align:center;padding:48px 20px;background:#fff;
  border:1px dashed var(--line);border-radius:var(--r-lg);
}
.empty-state i{font-size:38px;color:var(--ink-3);}
.empty-state p{color:var(--ink-2);margin:14px 0 20px;font-size:15px;}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:260px 1fr;gap:40px;align-items:start;}
.faq-aside h2{font-size:clamp(22px,2.6vw,32px);}
.faq-aside p{color:var(--ink-2);font-size:15px;margin-top:12px;}
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color var(--t),box-shadow var(--t);
}
.faq-item.open{border-color:var(--brand-line);border-left:3px solid var(--brand);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;text-align:left;background:transparent;border:0;cursor:pointer;
  padding:20px 22px;font-size:16px;font-weight:600;color:var(--ink);
  display:flex;align-items:center;gap:14px;
}
.faq-q .idx{color:var(--brand);font-variant-numeric:tabular-nums;font-size:15px;flex:0 0 auto;}
.faq-q .chev{margin-left:auto;color:var(--ink-3);transition:transform var(--t);font-size:18px;}
.faq-item.open .chev{transform:rotate(90deg);color:var(--brand);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height 280ms ease;
  padding:0 22px;
}
.faq-item.open .faq-a{max-height:320px;}
.faq-a p{font-size:15px;color:var(--ink-2);padding:0 0 20px 34px;}

/* 表单 */
.consult{background:#fff;}
.consult-grid{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:start;}
.consult-benefits{display:grid;gap:14px;margin-top:24px;}
.consult-benefits li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--ink-2);}
.consult-benefits i{color:var(--ok);font-size:17px;margin-top:2px;}
.contact-block{margin-top:28px;padding:20px;border-radius:var(--r-md);background:var(--brand-soft);border:1px solid var(--brand-line);}
.contact-block div{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink);}
.contact-block div+div{margin-top:10px;}
.contact-block i{color:var(--brand);font-size:17px;}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-2);
}
.form-card h3{font-size:20px;margin-bottom:6px;}
.form-card .form-note{font-size:14px;color:var(--ink-3);margin-bottom:22px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field.full{grid-column:1/-1;}
.field label{font-size:14px;font-weight:600;color:var(--ink);}
.field label em{color:var(--warn);font-style:normal;margin-left:3px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);background:#fff;
  border-radius:var(--r-sm);padding:12px 14px;font-size:15px;color:var(--ink);
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
  font-family:inherit;
}
.field textarea{min-height:110px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3);}
.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--brand-line);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(26,93,214,.12);
}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--ink-2);grid-column:1/-1;}
.check-row input{width:18px;height:18px;margin-top:2px;accent-color:var(--brand);flex:0 0 auto;}
.form-grid .btn-main{grid-column:1/-1;width:100%;}

/* CTA 带 */
.cta-band{background:var(--brand-soft);border-top:1px solid var(--brand-line);border-bottom:1px solid var(--brand-line);}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:44px 0;flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(20px,2.2vw,28px);}
.cta-inner p{color:var(--ink-2);font-size:15px;margin-top:8px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{background:var(--dark);color:#B9C6DA;padding:60px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand .brand-text span{color:#8FA2BE;}
.footer-brand p{font-size:14px;color:#B9C6DA;margin-top:16px;max-width:320px;line-height:1.85;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:600;}
.footer-col li+li{margin-top:11px;}
.footer-col a{color:#B9C6DA;font-size:14px;}
.footer-col a:hover{color:#fff;}
.footer-contact li{display:flex;gap:10px;font-size:14px;align-items:flex-start;}
.footer-contact i{color:#6C9BF5;font-size:16px;margin-top:3px;}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA2BE;
}
.footer-bottom a{color:#8FA2BE;}
.footer-bottom a:hover{color:#fff;}

/* 回到顶部 */
.to-top{
  position:fixed;right:20px;bottom:24px;width:46px;height:46px;border-radius:50%;
  background:#fff;border:1px solid var(--line);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:20px;
  box-shadow:var(--sh-2);cursor:pointer;z-index:60;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all var(--t);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand);color:#fff;border-color:var(--brand);}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  .hero-grid{gap:36px;}
}
@media (max-width:1199px){
  .container{padding-inline:18px;}
  .nav-links{gap:0;}
  .nav-link{padding:8px 10px;font-size:14px;}
  .split{grid-template-columns:1fr;}
  .split-side{grid-template-rows:auto;grid-template-columns:1fr 1fr;}
  .faq-layout{grid-template-columns:1fr;gap:24px;}
}
@media (max-width:991px){
  .topbar{display:none;}
  .nav-links{display:none;}
  .phone-cta{display:none;}
  .menu-toggle{display:inline-flex;}
  .section{padding:52px 0;}
  .hero{padding-top:44px;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-sub{max-width:none;}
  .hero-float{right:12px;bottom:-20px;}
  .hero-strip{grid-template-columns:1fr 1fr;}
  .hero-strip div{border-bottom:1px solid var(--line);}
  .hero-strip div:nth-child(2n){border-right:0;}
  .hero-strip div:nth-last-child(-n+2){border-bottom:0;}
  .ladder-item{grid-template-columns:56px 1fr;gap:16px;}
  .ladder-list{grid-column:1/-1;}
  .ladder-action{grid-column:1/-1;align-items:flex-start;flex-direction:row;gap:16px;}
  .limited-inner{grid-template-columns:1fr;padding:28px;}
  .steps{grid-template-columns:1fr 1fr;}
  .steps::before{display:none;}
  .news-grid{grid-template-columns:1fr;}
  .consult-grid{grid-template-columns:1fr;gap:28px;}
  .consult-benefits{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .section{padding:44px 0;}
  .head-row{flex-direction:column;align-items:flex-start;gap:14px;}
  .hero-cta .btn-main,.hero-cta .btn-ghost{flex:1;}
  .hero-metrics{gap:18px;}
  .metric{padding-right:18px;}
  .hero-float{position:static;width:100%;margin-top:16px;}
  .compare{min-width:0;grid-template-columns:1fr;gap:18px;}
  .compare-wrap{overflow:visible;}
  .plan.recommend{margin-top:0;}
  .countdown{gap:10px;}
  .cd-box{width:64px;}
  .cd-box b{font-size:22px;}
  .news-side{grid-template-columns:1fr;}
  .side-card{flex-direction:column;}
  .side-card img{width:100%;aspect-ratio:16/9;}
  .form-card{padding:22px;}
  .form-grid{grid-template-columns:1fr;}
  .consult-benefits{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .mobile-action-bar{display:flex;}
  .to-top{bottom:74px;}
  .site-footer{padding-bottom:60px;}
}
@media (max-width:575px){
  .container{padding-inline:16px;}
  .hero-strip{grid-template-columns:1fr;}
  .hero-strip div{border-right:0;border-bottom:1px solid var(--line);}
  .hero-strip div:last-child{border-bottom:0;}
  .steps{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .promo-text{display:none;}
}

/* roulang page: category1 */
:root{
  --brand:#1A5DD6;--brand-hover:#1449A8;--brand-soft:#EEF4FF;--brand-line:#CFE0FA;
  --accent:#F26B1D;--accent-soft:#FFF3EA;
  --ok:#12A87A;--warn:#D93B3B;
  --ink:#0F1A2B;--sub:#5A6B85;--muted:#8D9BB0;
  --line:#E4EAF2;--page:#F6F9FD;--card:#FFFFFF;--dark:#0F1A2B;
  --r-lg:16px;--r-md:14px;--r-sm:12px;--r-xs:10px;--r-pill:999px;
  --sh-1:0 8px 24px rgba(16,37,74,.06);
  --sh-2:0 14px 36px rgba(16,37,74,.10);
  --sh-3:0 18px 44px rgba(16,37,74,.12);
  --ease:220ms ease;
  --bs-primary:#1A5DD6;--bs-body-color:#0F1A2B;--bs-link-color:#1A5DD6;--bs-link-hover-color:#1449A8;
  --bs-body-font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--page);color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease)}
a:hover{color:var(--brand-hover)}
h1,h2,h3,h4{margin:0;line-height:1.35;color:var(--ink);font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-inline:20px}
.section{padding:72px 0}
.section-tight{padding:56px 0}
.section-head{margin-bottom:32px}
.section-head h2{font-size:clamp(22px,2.6vw,34px);font-weight:700}
.section-head p{margin-top:12px;color:var(--sub);font-size:16px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:600;margin-bottom:14px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow var(--ease)}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.topbar{display:none;background:var(--brand-soft);font-size:13px;color:var(--sub)}
@media(min-width:992px){.topbar{display:block}}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:36px}
.topbar-left i{color:var(--brand);margin-right:6px}
.topbar-right{display:flex;gap:18px}
.topbar-right a{color:var(--sub);font-size:13px}
.topbar-right a:hover{color:var(--brand)}
.nav-inner{display:flex;align-items:center;gap:20px;height:68px;transition:height var(--ease)}
.site-header.is-scrolled .nav-inner{height:60px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);flex-shrink:0}
.brand:hover{color:var(--ink)}
.brand-mark{display:inline-flex;align-items:center}
.brand-text{font-size:20px;font-weight:700;letter-spacing:.4px;white-space:nowrap}
.brand-text span{font-size:12px;font-weight:500;color:var(--sub);margin-left:5px;letter-spacing:1px}
.nav-links{display:none;align-items:center;gap:4px;margin-left:auto}
@media(min-width:992px){.nav-links{display:flex}}
.nav-link{position:relative;padding:10px 14px;border-radius:var(--r-xs);color:var(--sub);font-size:15px;font-weight:500}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:1px;height:3px;border-radius:3px;background:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
@media(min-width:992px){.nav-actions{margin-left:0}}
.nav-phone{display:none;align-items:center;gap:6px;font-size:14px;color:var(--sub)}
.nav-phone i{color:var(--brand)}
.nav-phone:hover{color:var(--brand)}
@media(min-width:1200px){.nav-phone{display:inline-flex}}
.nav-cta{display:none}
@media(min-width:768px){.nav-cta{display:inline-flex}}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:var(--r-xs);
  border:1px solid var(--line);color:var(--ink);background:#fff}
.nav-toggle:hover{border-color:var(--brand-line);color:var(--brand)}
@media(min-width:992px){.nav-toggle{display:none}}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(15,26,43,.42);opacity:0;visibility:hidden;transition:opacity var(--ease);z-index:1040}
.drawer-mask.show{opacity:1;visibility:visible}
.nav-drawer{position:fixed;top:0;right:0;height:100%;width:min(86vw,360px);background:#fff;z-index:1050;
  transform:translateX(102%);transition:transform 260ms ease;display:flex;flex-direction:column;box-shadow:var(--sh-3)}
.nav-drawer.show{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.drawer-title{font-size:16px;font-weight:600}
.drawer-close{width:38px;height:38px;border-radius:var(--r-xs);display:inline-flex;align-items:center;justify-content:center;color:var(--sub)}
.drawer-close:hover{background:var(--brand-soft);color:var(--brand)}
.drawer-links{padding:8px 0;overflow-y:auto;flex:1}
.drawer-links a{display:flex;align-items:center;justify-content:space-between;height:44px;padding:0 20px;color:var(--sub);
  border-bottom:1px solid var(--line);font-size:15px}
.drawer-links a:hover,.drawer-links a.active{color:var(--brand);background:var(--brand-soft)}
.drawer-foot{padding:16px 20px;border-top:1px solid var(--line)}
.drawer-foot .btn-brand{width:100%}

/* 移动吸底 */
.mobile-bar{position:fixed;left:0;right:0;bottom:0;height:56px;display:flex;background:#fff;border-top:1px solid var(--line);
  z-index:1020;box-shadow:0 -6px 20px rgba(16,37,74,.08)}
.mobile-bar a{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:6px;font-size:15px;font-weight:600}
.mobile-bar .mb-ghost{color:var(--brand);border-right:1px solid var(--line)}
.mobile-bar .mb-solid{background:var(--brand);color:#fff}
.mobile-bar .mb-solid:hover{background:var(--brand-hover);color:#fff}
@media(min-width:768px){.mobile-bar{display:none}}
@media(max-width:767px){body{padding-bottom:56px}}

/* ---------- 按钮 ---------- */
.btn-brand,.btn-ghost,.btn-accent,.btn-text{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;font-size:15px;border-radius:var(--r-pill);padding:12px 26px;min-height:44px;transition:all var(--ease)}
.btn-brand{background:var(--brand);color:#fff;border:1px solid var(--brand)}
.btn-brand:hover{background:var(--brand-hover);border-color:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-brand:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid var(--brand);border-radius:var(--r-xs)}
.btn-ghost:hover{background:var(--brand);color:#fff}
.btn-accent{background:var(--accent);color:#fff;border:1px solid var(--accent)}
.btn-accent:hover{background:#DC5A12;border-color:#DC5A12;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-text{padding:8px 0;min-height:auto;color:var(--brand);border-radius:6px}
.btn-text i{transition:transform var(--ease)}
.btn-text:hover i{transform:translateX(4px)}
.btn-sm{padding:8px 18px;min-height:38px;font-size:14px}
.btn-block{width:100%}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);overflow-x:auto;white-space:nowrap;padding:20px 0 0}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#C6D2E1}
.crumb .now{color:var(--brand);font-weight:600}

/* ---------- 分类 Hero ---------- */
.cat-hero{background:linear-gradient(180deg,#fff 0%,var(--page) 100%);border-bottom:1px solid var(--line)}
.cat-hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;padding:34px 0 56px;min-height:300px}
.cat-hero h1{font-size:clamp(28px,4.2vw,42px);font-weight:700;letter-spacing:-.3px}
.cat-hero .lead{margin-top:18px;font-size:18px;color:var(--sub);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-facts{display:flex;flex-wrap:wrap;gap:26px;margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}
.hero-facts div{font-size:13.5px;color:var(--sub)}
.hero-facts strong{display:block;font-size:22px;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.2}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-2)}
.hero-chip{position:absolute;left:20px;bottom:20px;background:rgba(255,255,255,.94);border-radius:var(--r-sm);
  padding:12px 16px;box-shadow:var(--sh-2);font-size:13.5px;color:var(--sub);display:flex;align-items:center;gap:10px}
.hero-chip b{color:var(--ink);font-size:15px}
.hero-chip .dot{width:8px;height:8px;border-radius:50%;background:var(--ok)}
@media(max-width:991px){.cat-hero-inner{grid-template-columns:1fr;gap:28px;padding:24px 0 44px;min-height:auto}}
@media(max-width:575px){.cat-hero .lead{font-size:16px}.hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%}}

/* ---------- 引导段落 ---------- */
.intro-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.intro-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.intro-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-line)}
.intro-item .no{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:var(--r-xs);
  background:var(--brand-soft);color:var(--brand);font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:16px}
.intro-item h3{font-size:17px;font-weight:600;margin-bottom:10px}
.intro-item p{color:var(--sub);font-size:15px}
@media(max-width:991px){.intro-grid{grid-template-columns:1fr 1fr}}
@media(max-width:767px){.intro-grid{grid-template-columns:1fr}}

/* ---------- 赛事卡片 ---------- */
.ev-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.ev-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-line)}
.ev-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--brand-soft)}
.ev-media img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease}
.ev-card:hover .ev-media img{transform:scale(1.04)}
.ev-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.ev-top{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.badge-soft{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;background:var(--brand-soft);
  color:var(--brand);font-size:12px;font-weight:600}
.badge-accent{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:6px;background:var(--accent-soft);
  color:var(--accent);font-size:12px;font-weight:600}
.ev-date{font-size:13px;color:var(--muted)}
.ev-title{font-size:19px;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ev-title a{color:var(--ink)}
.ev-title a:hover{color:var(--brand)}
.ev-desc{margin:0;color:var(--sub);font-size:14.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ev-list{display:flex;flex-wrap:wrap;gap:8px 16px;font-size:13.5px;color:var(--sub)}
.ev-list span{display:inline-flex;align-items:center;gap:6px}
.ev-list i{color:var(--brand);font-size:14px}
.ev-foot{margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}
.ev-foot .quota{font-size:13px;color:var(--ok);font-weight:600;font-variant-numeric:tabular-nums}
.ev-foot .quota.low{color:var(--accent)}

/* ---------- 深色数据条 ---------- */
.stats{background:linear-gradient(120deg,#0F1A2B 0%,#16233A 55%,#1B2C49 100%);color:#fff;border-radius:20px;padding:44px 40px}
.stats .head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.stats h2{color:#fff;font-size:clamp(22px,2.4vw,30px)}
.stats .head p{color:#B9C6DA;font-size:15px;margin-top:8px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-item{border-left:2px solid rgba(255,255,255,.14);padding-left:18px}
.stat-item:first-child{border-left-color:var(--accent)}
.stat-item strong{display:block;font-size:clamp(26px,3.2vw,38px);font-weight:700;color:#fff;font-variant-numeric:tabular-nums;letter-spacing:-.5px}
.stat-item strong em{font-style:normal;color:var(--accent)}
.stat-item span{display:block;margin-top:6px;font-size:14px;color:#B9C6DA}
@media(max-width:991px){.stats{padding:32px 24px}.stats-grid{grid-template-columns:1fr 1fr;gap:24px}}
@media(max-width:575px){.stats-grid{grid-template-columns:1fr}}

/* ---------- 流程 ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);position:relative;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-line)}
.step .sn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;
  background:var(--brand);color:#fff;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:16px}
.step h3{font-size:17px;font-weight:600;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--sub)}
@media(max-width:991px){.steps-grid{grid-template-columns:1fr 1fr}}
@media(max-width:575px){.steps-grid{grid-template-columns:1fr}}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);margin-bottom:12px;overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease)}
.faq-item:hover{border-color:var(--brand-line)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);border-left:3px solid transparent;transition:all var(--ease)}
.faq-q:hover{color:var(--brand)}
.faq-q[aria-expanded="true"]{color:var(--brand);border-left-color:var(--brand);background:var(--brand-soft)}
.faq-q .ico{flex-shrink:0;width:24px;height:24px;display:inline-flex;align-items:center;justify-content:center;color:var(--brand);
  transition:transform var(--ease)}
.faq-q[aria-expanded="true"] .ico{transform:rotate(90deg)}
.faq-a{padding:4px 22px 20px;color:var(--sub);font-size:15px;border-left:3px solid var(--brand);background:var(--brand-soft)}

/* ---------- 相关分类 ---------- */
.rel-cats{display:flex;flex-wrap:wrap;gap:14px}
.rel-cat{display:inline-flex;align-items:center;gap:10px;padding:14px 24px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);color:var(--ink);font-weight:600;font-size:15px;box-shadow:var(--sh-1)}
.rel-cat i{color:var(--brand)}
.rel-cat:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--sh-2)}
.rel-cat.current{background:var(--brand);border-color:var(--brand);color:#fff}
.rel-cat.current i{color:#fff}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand-soft);border:1px solid var(--brand-line);border-radius:20px;padding:40px;
  display:grid;grid-template-columns:1.2fr .8fr;gap:32px;align-items:center}
.cta-band h2{font-size:clamp(22px,2.6vw,32px)}
.cta-band p{margin-top:12px;color:var(--sub);font-size:16px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}
@media(max-width:991px){.cta-band{grid-template-columns:1fr;padding:28px}.cta-actions{justify-content:flex-start}}
@media(max-width:575px){.cta-actions .btn-brand,.cta-actions .btn-ghost{width:100%}}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#B9C6DA;padding:56px 0 0;margin-top:72px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-text span{color:#8D9BB0}
.footer-brand p{font-size:14px;line-height:1.85}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{color:#B9C6DA;font-size:14px}
.footer-col a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;font-size:14px;align-items:flex-start}
.footer-contact i{color:#6C9BF5;margin-top:4px}
.footer-bottom{margin-top:40px;border-top:1px solid rgba(255,255,255,.10);padding:20px 0 26px;display:flex;
  flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#8D9BB0}
@media(max-width:991px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:575px){.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column}}

/* 回到顶部 */
.to-top{position:fixed;right:22px;bottom:80px;width:46px;height:46px;border-radius:50%;background:#fff;color:var(--brand);
  border:1px solid var(--brand-line);box-shadow:var(--sh-2);display:inline-flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:all var(--ease);z-index:1010}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
@media(min-width:768px){.to-top{bottom:32px}}

/* roulang page: article */
:root{
  --brand:#1A5DD6;
  --brand-hover:#1449A8;
  --brand-soft:#EEF4FF;
  --brand-line:#CFE0FA;
  --accent:#F26B1D;
  --accent-hover:#DA5A0F;
  --accent-soft:#FFF3EA;
  --ok:#12A87A;
  --warn:#D93B3B;
  --ink:#0F1A2B;
  --muted:#5A6B85;
  --faint:#8D9BB0;
  --line:#E4EAF2;
  --page:#F6F9FD;
  --card:#FFFFFF;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --sh-1:0 8px 24px rgba(16,37,74,.06);
  --sh-2:0 14px 36px rgba(16,37,74,.10);
  --sh-3:0 18px 44px rgba(16,37,74,.12);
  --bs-primary:#1A5DD6;
  --bs-link-color:#1A5DD6;
  --bs-body-color:#0F1A2B;
  --bs-body-bg:#F6F9FD;
  --bs-border-color:#E4EAF2;
  --bs-font-sans-serif:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","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:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink);background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,background-color .18s ease}
a:hover{color:var(--brand-hover)}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:.1px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* ===== 头部导航 ===== */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .22s ease}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.topbar{background:var(--brand-soft);border-bottom:1px solid var(--brand-line);color:var(--muted);font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;min-height:36px;gap:16px}
.topbar-left{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.topbar-left i{color:var(--brand);margin-right:5px}
.topbar-right{display:flex;align-items:center;gap:18px}
.topbar-right a{color:var(--muted);font-size:13px}
.topbar-right a:hover{color:var(--brand)}
.nav-inner{display:flex;align-items:center;gap:18px;min-height:68px;transition:min-height .22s ease}
.site-header.is-scrolled .nav-inner{min-height:60px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);flex:none}
.brand:hover{color:var(--ink)}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;flex:none}
.brand-text{font-size:19px;font-weight:700;line-height:1.1}
.brand-text span{display:block;font-size:12px;font-weight:500;color:var(--muted);letter-spacing:3px}
.nav-links{display:flex;align-items:center;gap:4px;margin:0 auto}
.nav-link{position:relative;display:inline-block;padding:10px 14px;border-radius:8px;color:var(--muted);font-size:15px;font-weight:500}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:3px;border-radius:2px;background:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none}
.nav-phone{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600;color:var(--ink)}
.nav-phone i{color:var(--brand)}
.nav-phone:hover{color:var(--brand)}
.nav-toggle{display:none;align-items:center;justify-content:center;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-sm);background:#fff;color:var(--ink);cursor:pointer;transition:all .2s ease}
.nav-toggle:hover{border-color:var(--brand-line);color:var(--brand);background:var(--brand-soft)}
.nav-drawer{position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);background:#fff;z-index:1060;display:flex;flex-direction:column;transform:translateX(105%);transition:transform .28s ease;box-shadow:var(--sh-3)}
.nav-drawer.is-open{transform:none}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line);font-weight:700;font-size:15px}
.drawer-close{width:38px;height:38px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);color:var(--muted);cursor:pointer}
.drawer-close:hover{color:var(--brand);border-color:var(--brand-line)}
.drawer-links{display:flex;flex-direction:column;padding:6px 0;overflow:auto}
.drawer-links a{padding:14px 22px;color:var(--ink);font-size:16px;border-bottom:1px solid var(--line)}
.drawer-links a:hover{background:var(--brand-soft);color:var(--brand)}
.drawer-links a.active{color:var(--brand);font-weight:600;background:var(--brand-soft)}
.drawer-cta{margin-top:auto;padding:18px 22px 26px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:10px}
.drawer-cta .btn{width:100%}
.backdrop{position:fixed;inset:0;background:rgba(15,26,43,.45);opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;z-index:1055}
.backdrop.is-open{opacity:1;visibility:visible}

/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:12px 26px;border-radius:999px;border:1px solid transparent;font-size:15px;font-weight:600;line-height:1;cursor:pointer;transition:all .2s ease}
.btn-main{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(26,93,214,.22)}
.btn-main:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(26,93,214,.28)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand-line)}
.btn-ghost:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(242,107,29,.24)}
.btn-accent:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px)}
.btn-light-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-light-outline:hover{background:#fff;color:var(--ink);border-color:#fff}
.btn-sm{min-height:38px;padding:9px 18px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand)}
.link-arrow i{transition:transform .2s ease}
.link-arrow:hover i{transform:translateX(4px)}

/* ===== 面包屑 / 文章头部 ===== */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:20px 0 0;font-size:13.5px;color:var(--muted)}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--faint)}
.crumb .cur{color:var(--brand);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero{background:#fff;border-bottom:1px solid var(--line);padding-bottom:30px}
.article-hero h1{margin:18px 0 18px;font-size:clamp(24px,3vw,36px);font-weight:700;max-width:900px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;color:var(--muted);font-size:14px}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--brand)}
.badge-cat{display:inline-flex;align-items:center;padding:5px 12px;border-radius:6px;background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:600}
.badge-promo{display:inline-flex;align-items:center;padding:5px 12px;border-radius:6px;background:var(--accent-soft);color:var(--accent);font-size:13px;font-weight:600}

/* ===== 正文布局 ===== */
.article-main{padding:42px 0 56px}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start}
.article-col{min-width:0;max-width:820px}
.article-body{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:36px 40px;font-size:16.5px;line-height:1.9;color:var(--ink);box-shadow:var(--sh-1);overflow-wrap:anywhere}
.article-body h2{position:relative;font-size:clamp(20px,2.2vw,26px);margin:40px 0 16px;padding-left:14px}
.article-body h2:first-child{margin-top:0}
.article-body h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--brand)}
.article-body h3{font-size:19px;margin:28px 0 12px}
.article-body h4{font-size:17px;margin:22px 0 10px}
.article-body p{margin:0 0 20px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px;line-height:1.85}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:8px}
.article-body strong{font-weight:700;color:#0B1B33}
.article-body img{border-radius:14px;margin:24px auto;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--faint)}
.article-body blockquote{margin:24px 0;padding:18px 22px;background:var(--brand-soft);border-left:4px solid var(--brand);border-radius:0 12px 12px 0;color:#28405F;font-style:normal}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:20px 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body thead th{background:var(--brand-soft);color:#173a6b;font-weight:600}
.article-body tbody tr:nth-child(even){background:#FBFCFE}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

/* ===== 文末 ===== */
.article-foot{margin-top:26px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--muted);font-size:13.5px;transition:all .2s ease}
.tag:hover{color:var(--brand);border-color:var(--brand-line);background:var(--brand-soft)}
.post-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:26px}
.post-nav-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px 22px;color:var(--ink);transition:all .22s ease}
.post-nav-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-line);color:var(--ink)}
.post-nav-card .dir{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);margin-bottom:8px}
.post-nav-card:hover .dir{color:var(--brand)}
.post-nav-card strong{display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;font-size:15.5px;font-weight:600}
.post-nav-card.next{text-align:right}
.post-nav-card.next .dir{flex-direction:row-reverse;justify-content:flex-end}
.post-back{margin-top:22px;display:flex;justify-content:flex-start}

/* ===== 侧栏 ===== */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;box-shadow:var(--sh-1)}
.side-card h3{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;margin-bottom:14px}
.side-card h3 i{color:var(--brand)}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:340px;overflow:auto}
.toc-list a{display:block;padding:7px 10px;border-left:2px solid var(--line);border-radius:0 8px 8px 0;font-size:13.5px;color:var(--muted);line-height:1.5}
.toc-list a:hover{color:var(--brand);background:var(--brand-soft)}
.toc-list a.is-active{color:var(--brand);border-left-color:var(--brand);background:var(--brand-soft);font-weight:600}
.toc-list a.lv3{padding-left:22px;font-size:13px}
.mini-post{display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line)}
.mini-post:last-child{border-bottom:0;padding-bottom:0}
.mini-post img{width:76px;height:58px;object-fit:cover;border-radius:10px;flex:none}
.mini-post strong{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:14px;font-weight:600;line-height:1.5;color:var(--ink)}
.mini-post:hover strong{color:var(--brand)}
.mini-post span{display:block;margin-top:4px;font-size:12.5px;color:var(--faint)}
.side-cta{background:linear-gradient(140deg,#1A5DD6,#1449A8);border:0;color:#fff;border-radius:var(--r-lg);padding:22px 20px}
.side-cta h3{color:#fff;margin-bottom:10px}
.side-cta p{font-size:14px;color:#D8E4FA;line-height:1.7;margin-bottom:16px}
.side-cta .btn{width:100%;background:#fff;color:var(--brand);border-color:#fff}
.side-cta .btn:hover{background:#EEF4FF;color:var(--brand-hover)}

/* ===== 空态 ===== */
.empty-state{background:#fff;border:1px dashed var(--brand-line);border-radius:var(--r-lg);padding:52px 24px;text-align:center}
.empty-state i{font-size:38px;color:var(--faint)}
.empty-state h2{font-size:20px;margin:14px 0 8px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:22px}

/* ===== 相关推荐 ===== */
.related{padding:56px 0;background:#fff;border-top:1px solid var(--line)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.6vw,30px)}
.section-head p{color:var(--muted);font-size:15px;margin-top:8px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;color:var(--ink);transition:all .22s ease}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-line);color:var(--ink)}
.post-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.post-card .pc-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card h3{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:17px;font-weight:600}
.post-card p{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;font-size:14px;color:var(--muted);line-height:1.7}
.post-card .pc-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--faint)}

/* ===== CTA 带 ===== */
.cta-band{padding:0 0 72px}
.cta-inner{position:relative;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;padding:40px;border-radius:20px;background:linear-gradient(100deg,#F26B1D,#E03A2F);color:#fff;overflow:hidden}
.cta-inner::after{content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;background:rgba(255,255,255,.12)}
.cta-text{position:relative;z-index:1;max-width:620px}
.cta-text h2{font-size:clamp(20px,2.4vw,28px);color:#fff;margin-bottom:10px}
.cta-text p{font-size:15px;color:#FFEBDF;line-height:1.8}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px}
.cta-actions .btn-accent{background:#fff;color:#D9481A}
.cta-actions .btn-accent:hover{background:#FFF3EA;color:#B93C12}

/* ===== 页脚 ===== */
.site-footer{background:#0F1A2B;color:#B9C6DA;padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand .brand{color:#fff;margin-bottom:14px}
.footer-brand .brand-text span{color:#8FA3C0}
.footer-brand p{font-size:14px;line-height:1.8;color:#9FB0C9}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:#B9C6DA}
.footer-col a:hover{color:#fff}
.footer-contact li{display:flex;gap:9px;font-size:14px;line-height:1.7}
.footer-contact i{color:#6C9BF5;margin-top:4px}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding-top:20px;font-size:13px;color:#8194AE}
.footer-bottom a{color:#8194AE}
.footer-bottom a:hover{color:#fff}

/* ===== 浮动组件 ===== */
.to-top{position:fixed;right:22px;bottom:88px;width:46px;height:46px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--brand);box-shadow:var(--sh-2);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;visibility:hidden;transition:all .24s ease;z-index:1040}
.to-top.is-show{opacity:1;visibility:visible}
.to-top:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
.mobile-bar{display:none;position:fixed;left:0;right:0;bottom:0;height:56px;background:#fff;border-top:1px solid var(--line);box-shadow:0 -6px 18px rgba(16,37,74,.08);z-index:1050}
.mobile-bar a{flex:1;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600}
.mb-ghost{color:var(--brand);border-right:1px solid var(--line)}
.mb-solid{background:var(--brand);color:#fff}
.mb-solid:hover{color:#fff;background:var(--brand-hover)}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .article-grid{grid-template-columns:1fr;gap:32px}
  .article-col{max-width:none}
  .article-side{position:static}
}
@media (max-width:991px){
  .topbar{display:none}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-phone span{display:none}
  .nav-inner{justify-content:space-between}
  .article-body{padding:28px 24px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:767px){
  .article-main{padding:28px 0 40px}
  .article-hero{padding-bottom:22px}
  .article-hero h1{margin:14px 0 14px}
  .article-body{padding:22px 18px;font-size:16px}
  .article-body h2{margin-top:32px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .post-nav{grid-template-columns:1fr}
  .post-nav-card.next{text-align:left}
  .related{padding:40px 0}
  .related-grid{grid-template-columns:1fr}
  .cta-band{padding-bottom:56px}
  .cta-inner{padding:26px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .mobile-bar{display:flex}
  .to-top{bottom:74px;right:14px}
  body{padding-bottom:56px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category2 */
:root{
  --brand:#1A5DD6;
  --brand-hover:#1449A8;
  --brand-soft:#EEF4FF;
  --brand-line:#CFE0FA;
  --accent:#F26B1D;
  --accent-soft:#FFF3EA;
  --ok:#12A87A;
  --danger:#D93B3B;
  --ink:#0F1A2B;
  --ink-2:#5A6B85;
  --ink-3:#8D9BB0;
  --line:#E4EAF2;
  --bg:#F6F9FD;
  --card:#FFFFFF;
  --dark:#0F1A2B;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --sh-1:0 8px 24px rgba(16,37,74,.06);
  --sh-2:0 14px 36px rgba(16,37,74,.10);
  --sh-3:0 18px 44px rgba(16,37,74,.12);
  --bs-primary:#1A5DD6;
  --bs-body-color:#0F1A2B;
  --bs-link-color:#1A5DD6;
  --bs-link-hover-color:#1449A8;
  --bs-body-font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:color .2s ease}
a:hover{color:var(--brand)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.35;color:var(--ink)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{
  max-width:1200px;
  width:100%;
  padding-inline:20px;
  margin-inline:auto;
}
.section{padding:72px 0}
.section-tight{padding:56px 0}
.section-head{max-width:760px;margin-bottom:36px}
.section-head.center{margin-inline:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--brand);background:var(--brand-soft);
  border:1px solid var(--brand-line);border-radius:999px;
  padding:6px 14px;margin-bottom:16px;
}
.section h2{font-size:clamp(22px,2.6vw,34px);margin-bottom:14px}
.section .section-sub{color:var(--ink-2);font-size:16px;line-height:1.8}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.topbar{background:var(--brand-soft);border-bottom:1px solid var(--brand-line)}
.topbar-inner{
  height:36px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-2);
}
.topbar-left{display:inline-flex;align-items:center;gap:8px}
.topbar-left i{color:var(--brand)}
.topbar-right{display:flex;gap:22px}
.topbar-right a{color:var(--ink-2);font-weight:500}
.topbar-right a:hover{color:var(--brand)}
.nav-inner{
  height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px;
  transition:height .25s ease;
}
.site-header.is-scrolled .nav-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{display:inline-flex;line-height:0}
.brand-text{font-size:20px;font-weight:700;letter-spacing:.02em;color:var(--ink);white-space:nowrap}
.brand-text span{font-size:12px;font-weight:600;color:var(--brand);margin-left:4px;letter-spacing:.14em}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 14px;font-size:15px;font-weight:500;color:var(--ink-2);
  border-radius:8px;transition:color .2s ease,background .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:3px;background:transparent;transition:background .2s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft)}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{background:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:14px}
.nav-phone{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--ink);
  padding:8px 14px;border:1px solid var(--line);border-radius:999px;background:#fff;
  font-variant-numeric:tabular-nums;
}
.nav-phone i{color:var(--brand)}
.nav-phone:hover{border-color:var(--brand-line);background:var(--brand-soft);color:var(--brand)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:#fff;color:var(--ink);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle i{font-size:22px}
.nav-toggle:hover{border-color:var(--brand-line);color:var(--brand)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-outline{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-outline:hover{background:var(--brand);color:#fff;transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#DB5A0F;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand-line);color:var(--brand);background:var(--brand-soft)}
.btn-block{width:100%}
.btn-sm{padding:9px 20px;font-size:14px}
.btn-link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);
  padding:0;background:none;border:none;
}
.btn-link-arrow i{transition:transform .2s ease}
.btn-link-arrow:hover i{transform:translateX(4px)}

/* ---------- Breadcrumb ---------- */
.breadcrumb-bar{padding:18px 0 0;font-size:14px;color:var(--ink-3)}
.breadcrumb-bar ol{display:flex;flex-wrap:nowrap;align-items:center;gap:8px;overflow-x:auto;list-style:none;margin:0;padding:0}
.breadcrumb-bar li{white-space:nowrap}
.breadcrumb-bar li+li::before{content:"/";margin-right:8px;color:var(--ink-3)}
.breadcrumb-bar a{color:var(--ink-2)}
.breadcrumb-bar a:hover{color:var(--brand)}
.breadcrumb-bar .current{color:var(--brand);font-weight:600}

/* ---------- Category hero ---------- */
.cat-hero{
  padding:34px 0 56px;
  background:linear-gradient(180deg,#F6F9FD 0%,#FFFFFF 100%);
}
.cat-hero-grid{
  display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;
}
.cat-hero h1{font-size:clamp(28px,4.2vw,46px);margin-bottom:18px}
.cat-hero .hero-sub{
  font-size:19px;line-height:1.7;color:var(--ink-2);margin-bottom:26px;max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-soft);border:1px solid var(--brand-line);
  border-radius:6px;padding:6px 12px;
}
.tag.tag-accent{color:#B24A08;background:var(--accent-soft);border-color:#FBD6BC}
.tag.tag-ok{color:#0B7C58;background:#E8F8F2;border-color:#BFEADB}
.cat-hero-media{position:relative}
.cat-hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:14px;
  border:1px solid var(--line);box-shadow:var(--sh-2);
}
.hero-float{
  position:absolute;left:-18px;bottom:-22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--sh-3);padding:16px 18px;max-width:250px;
  transition:transform .25s ease;
}
.hero-float:hover{transform:translateY(-4px)}
.hero-float strong{display:block;font-size:15px;margin-bottom:4px}
.hero-float span{display:block;font-size:13px;color:var(--ink-2);line-height:1.6}

/* ---------- Lead copy ---------- */
.lead-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:44px;align-items:start}
.lead-copy p{color:var(--ink-2);font-size:16px;line-height:1.9;margin-bottom:18px}
.lead-copy p:last-child{margin-bottom:0}
.lead-copy strong{color:var(--ink)}
.stat-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-line)}
.stat-card .num{
  font-size:30px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;
  line-height:1.1;margin-bottom:6px;letter-spacing:-.01em;
}
.stat-card .num small{font-size:15px;font-weight:600;margin-left:2px}
.stat-card .lbl{font-size:14px;color:var(--ink-2)}

/* ---------- Service rows ---------- */
.svc-row{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  padding:36px 0;
}
.svc-row+.svc-row{border-top:1px dashed var(--line)}
.svc-row.reverse .svc-media{order:2}
.svc-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:14px;
  border:1px solid var(--line);box-shadow:var(--sh-1);
  transition:transform .3s ease,box-shadow .3s ease;
}
.svc-media:hover img{transform:translateY(-4px);box-shadow:var(--sh-2)}
.svc-body h3{font-size:22px;margin-bottom:14px}
.svc-body p{color:var(--ink-2);font-size:15.5px;line-height:1.85;margin-bottom:14px}
.svc-params{
  display:grid;grid-template-columns:repeat(3,1fr);gap:12px;
  margin:22px 0 22px;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.svc-params .p-item{display:flex;flex-direction:column;gap:4px}
.svc-params i{font-size:19px;color:var(--brand)}
.svc-params .p-val{font-size:17px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--ink)}
.svc-params .p-key{font-size:13px;color:var(--ink-3)}

/* ---------- Flow ---------- */
.flow-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.flow-item{
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 22px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.flow-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-line);background:#fff}
.flow-num{
  width:38px;height:38px;border-radius:50%;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.flow-item h3{font-size:17px;margin-bottom:8px}
.flow-item p{font-size:14px;color:var(--ink-2);line-height:1.75}

/* ---------- Booking form ---------- */
.booking-section{background:linear-gradient(180deg,#FFFFFF 0%,#F6F9FD 100%)}
.booking-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:44px;align-items:start}
.booking-info h2{font-size:clamp(22px,2.6vw,34px);margin-bottom:16px}
.booking-info .section-sub{margin-bottom:24px}
.booking-points{display:grid;gap:14px;margin-bottom:26px}
.booking-points li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink-2)}
.booking-points i{color:var(--ok);font-size:18px;line-height:1.6}
.contact-box{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);
}
.contact-box .row-item{display:flex;align-items:center;gap:12px;font-size:15px;font-weight:600;margin-bottom:12px}
.contact-box .row-item:last-child{margin-bottom:0}
.contact-box i{color:var(--brand);font-size:18px}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px;box-shadow:var(--sh-2);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-field{display:flex;flex-direction:column;gap:8px}
.form-field.full{grid-column:1 / -1}
.form-field label{font-size:14px;font-weight:600;color:var(--ink)}
.form-field label .req{color:var(--danger);margin-left:2px}
.form-control,.form-select{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;color:var(--ink);font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-control::placeholder{color:var(--ink-3)}
.form-control:hover,.form-select:hover{border-color:var(--brand-line)}
.form-control:focus,.form-select:focus{
  border-color:var(--brand);box-shadow:0 0 0 4px rgba(26,93,214,.12);outline:none;
}
textarea.form-control{min-height:96px;resize:vertical}
.form-check{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--ink-2);line-height:1.7}
.form-check input{width:17px;height:17px;margin-top:3px;accent-color:var(--brand);flex-shrink:0}
.form-note{font-size:13px;color:var(--ink-3);margin-top:12px;text-align:center}

/* ---------- FAQ ---------- */
.faq-section{background:#fff;border-top:1px solid var(--line)}
.faq-grid{display:grid;grid-template-columns:260px 1fr;gap:44px;align-items:start}
.faq-side h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:14px}
.faq-side p{color:var(--ink-2);font-size:15px;line-height:1.8;margin-bottom:18px}
.faq-list .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-list .accordion-item:hover{border-color:var(--brand-line);box-shadow:var(--sh-1)}
.faq-list .accordion-item:has(.accordion-button:not(.collapsed)){
  border-color:var(--brand-line);border-left:3px solid var(--brand);box-shadow:var(--sh-1);
}
.faq-list .accordion-button{
  background:#fff;color:var(--ink);font-size:16px;font-weight:600;
  padding:18px 52px 18px 20px;border:0;box-shadow:none;line-height:1.6;
}
.faq-list .accordion-button:not(.collapsed){color:var(--brand);background:var(--brand-soft)}
.faq-list .accordion-button:focus{box-shadow:none;outline:none}
.faq-list .accordion-button:focus-visible{outline:2px solid var(--brand);outline-offset:-3px}
.faq-list .accordion-button::after{
  background-image:none;content:"\F282";font-family:"bootstrap-icons";
  font-size:16px;color:var(--brand);width:auto;height:auto;
  transition:transform .25s ease;position:absolute;right:20px;
}
.faq-list .accordion-button:not(.collapsed)::after{transform:rotate(90deg)}
.faq-list .accordion-body{padding:16px 20px 20px;color:var(--ink-2);font-size:15px;line-height:1.85}

/* ---------- Related categories ---------- */
.related-section{padding:56px 0}
.cat-pills{display:flex;flex-wrap:wrap;gap:14px}
.cat-pill{
  display:inline-flex;align-items:center;gap:10px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:12px 22px;font-size:15px;font-weight:600;color:var(--ink);
  box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,color .22s ease;
}
.cat-pill i{color:var(--brand);font-size:17px}
.cat-pill:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--brand-line);color:var(--brand)}
.cat-pill.active{background:var(--brand);color:#fff;border-color:var(--brand)}
.cat-pill.active i{color:#fff}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(100deg,#F26B1D,#E03A2F);
  border-radius:20px;padding:44px;color:#fff;
  display:grid;grid-template-columns:1.4fr .6fr;gap:32px;align-items:center;
  box-shadow:0 18px 44px rgba(224,58,47,.22);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,32px);margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.92);font-size:16px;line-height:1.8;margin:0}
.cta-band .cta-actions{display:flex;flex-direction:column;gap:14px;align-items:stretch}
.cta-band .btn-white{background:#fff;color:#C0330A;border-color:#fff}
.cta-band .btn-white:hover{background:#FFF3EA;color:#A82A06;transform:translateY(-1px)}
.cta-band .btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.cta-band .btn-line:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.cta-metrics{display:flex;gap:26px;flex-wrap:wrap;margin-top:22px}
.cta-metrics .m-item{font-variant-numeric:tabular-nums}
.cta-metrics .m-val{font-size:22px;font-weight:700;color:#fff}
.cta-metrics .m-key{font-size:13px;color:rgba(255,255,255,.85)}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:#B9C6DA;margin-top:72px;padding-top:60px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-text span{color:#6C9BF5}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:#B9C6DA;max-width:340px}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:#B9C6DA}
.footer-col a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:1.7}
.footer-contact i{color:#6C9BF5;font-size:15px;line-height:1.7;flex-shrink:0}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:#8D9BB0;
}
.to-top{
  position:fixed;right:22px;bottom:78px;width:46px;height:46px;border-radius:50%;
  background:#fff;border:1px solid var(--line);color:var(--brand);box-shadow:var(--sh-2);
  display:none;align-items:center;justify-content:center;cursor:pointer;z-index:1040;
  transition:transform .2s ease,box-shadow .2s ease;
}
.to-top.show{display:flex}
.to-top:hover{transform:translateY(-3px);box-shadow:var(--sh-3)}

/* ---------- Mobile drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,26,43,.45);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:1050;
}
.drawer-mask.show{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;width:min(86vw,360px);
  background:#fff;z-index:1060;transform:translateX(100%);
  transition:transform .28s ease;display:flex;flex-direction:column;
  box-shadow:-16px 0 40px rgba(16,37,74,.16);
}
.mobile-drawer.show{transform:translateX(0)}
.drawer-head{
  height:64px;display:flex;align-items:center;justify-content:space-between;
  padding:0 20px;border-bottom:1px solid var(--line);
}
.drawer-close{
  width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:#fff;
  color:var(--ink);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
}
.drawer-nav{padding:10px 0;flex:1;overflow-y:auto}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  height:52px;padding:0 20px;font-size:15px;font-weight:500;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover{color:var(--brand);background:var(--brand-soft)}
.drawer-nav a.active{color:var(--brand);font-weight:600;border-left:3px solid var(--brand)}
.drawer-foot{padding:16px 20px 22px;border-top:1px solid var(--line)}
.drawer-foot .btn{width:100%}
.drawer-foot .tel{margin-bottom:10px}

/* ---------- Mobile action bar ---------- */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;height:56px;background:#fff;
  border-top:1px solid var(--line);box-shadow:0 -8px 24px rgba(16,37,74,.08);
  display:none;z-index:1045;
}
.mobile-bar .bar-inner{display:flex;height:100%;gap:10px;padding:8px 14px}
.mobile-bar .btn{flex:1;min-height:40px;padding:0 14px;font-size:14px}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .cat-hero-grid{gap:36px}
  .faq-grid{grid-template-columns:220px 1fr;gap:32px}
}
@media (max-width:991px){
  .topbar{display:none}
  .nav-links{display:none}
  .nav-phone{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:52px 0}
  .cat-hero{padding:26px 0 44px}
  .cat-hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-float{left:auto;right:14px;bottom:-18px;max-width:220px}
  .lead-grid{grid-template-columns:1fr;gap:28px}
  .svc-row{grid-template-columns:1fr;gap:26px;padding:28px 0}
  .svc-row.reverse .svc-media{order:0}
  .flow-grid{grid-template-columns:1fr 1fr;gap:18px}
  .booking-grid{grid-template-columns:1fr;gap:28px}
  .faq-grid{grid-template-columns:1fr;gap:24px}
  .cta-band{grid-template-columns:1fr;padding:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .mobile-bar{display:block}
  body{padding-bottom:56px}
  .to-top{bottom:78px;right:16px}
  .section{padding:44px 0}
  .stat-cards{grid-template-columns:1fr 1fr}
  .stat-card{padding:18px}
  .stat-card .num{font-size:25px}
  .form-grid{grid-template-columns:1fr;gap:16px}
  .form-card{padding:22px}
  .svc-params{grid-template-columns:1fr;gap:14px}
  .svc-params .p-item{flex-direction:row;align-items:center;gap:10px}
  .cta-metrics{gap:18px}
  .hero-actions .btn{width:100%}
  .hero-float{position:static;margin-top:16px;max-width:none}
}
@media (max-width:575px){
  .container{padding-inline:16px}
  .brand-text{font-size:18px}
  .flow-grid{grid-template-columns:1fr}
  .stat-cards{grid-template-columns:1fr}
  .cat-hero h1{font-size:26px}
  .cat-hero .hero-sub{font-size:16.5px}
  .cta-band{padding:26px 20px;border-radius:16px}
  .footer-grid{grid-template-columns:1fr}
  .cat-pill{width:100%;justify-content:flex-start}
}

/* roulang page: category3 */
/* ================= 设计变量 ================= */
:root{
  --brand:#1A5DD6;
  --brand-hover:#1449A8;
  --brand-soft:#EEF4FF;
  --brand-line:#CFE0FA;
  --accent:#F26B1D;
  --accent-soft:#FFF3EA;
  --accent-deep:#E03A2F;
  --ok:#12A87A;
  --warn:#D93B3B;
  --ink:#0F1A2B;
  --ink-2:#5A6B85;
  --ink-3:#8D9BB0;
  --line:#E4EAF2;
  --bg:#F6F9FD;
  --card:#FFFFFF;
  --r-xl:20px;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --sh-1:0 8px 24px rgba(16,37,74,.06);
  --sh-2:0 14px 36px rgba(16,37,74,.10);
  --sh-3:0 18px 44px rgba(16,37,74,.12);
  --font:-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-body-font-family:var(--font);
  --bs-body-color:#0F1A2B;
  --bs-link-color:#1A5DD6;
  --bs-link-hover-color:#1449A8;
  --bs-primary:#1A5DD6;
}

/* ================= 基础重置 ================= */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-hover);}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.32;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;border:0;background:none;cursor:pointer;}
input,select,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
::selection{background:var(--brand-soft);color:var(--brand-hover);}
.num{font-variant-numeric:tabular-nums;}

/* ================= 容器 ================= */
.container{
  width:100%;
  max-width:1200px;
  margin-inline:auto;
  padding-inline:20px;
}

/* ================= 按钮体系 ================= */
.btn-main,
.btn-ghost,
.btn-accent{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 26px;
  font-size:15px;
  font-weight:600;
  border-radius:999px;
  transition:background .22s ease,color .22s ease,box-shadow .22s ease,transform .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-main{background:var(--brand);color:#fff;border:1px solid var(--brand);}
.btn-main:hover{background:var(--brand-hover);border-color:var(--brand-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-main:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:#fff;color:var(--brand);border:1px solid var(--brand);border-radius:var(--r-sm);}
.btn-ghost:hover{background:var(--brand);color:#fff;border-color:var(--brand);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost:active{transform:translateY(0);}
.btn-accent{background:var(--accent);color:#fff;border:1px solid var(--accent);}
.btn-accent:hover{background:#D95A0F;border-color:#D95A0F;color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-accent:active{transform:translateY(0);}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--brand);
}
.link-arrow i{transition:transform .22s ease;}
.link-arrow:hover i{transform:translateX(4px);}
.link-arrow:hover{color:var(--brand-hover);}

/* ================= 徽章 ================= */
.badge-tag{
  display:inline-flex;
  align-items:center;
  gap:4px;
  padding:4px 10px;
  font-size:12.5px;
  font-weight:600;
  border-radius:6px;
  line-height:1.5;
}
.badge-blue{background:var(--brand-soft);color:var(--brand-hover);}
.badge-orange{background:var(--accent-soft);color:#B44E0F;}
.badge-green{background:#E6F7F1;color:#0B7A59;}

/* ================= 顶部信息条 ================= */
.topbar{display:none;background:var(--brand-soft);border-bottom:1px solid var(--brand-line);}
.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  height:36px;
  font-size:13px;
  color:var(--ink-2);
}
.topbar-left{display:inline-flex;align-items:center;gap:8px;}
.topbar-left i{color:var(--brand);}
.topbar-links{display:inline-flex;align-items:center;gap:18px;}
.topbar-links a{font-size:13px;color:var(--ink-2);}
.topbar-links a:hover{color:var(--brand);}
@media(min-width:992px){.topbar{display:block;}}

/* ================= 导航 ================= */
.site-header{position:sticky;top:0;z-index:1040;background:#fff;transition:box-shadow .25s ease;}
.site-header.scrolled{box-shadow:var(--sh-1);}
.navbar-wrap{background:#fff;border-bottom:1px solid var(--line);}
.nav-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:68px;
  transition:height .25s ease;
}
.site-header.scrolled .nav-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:12px;background:var(--brand-soft);}
.brand-text{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.2px;line-height:1.1;}
.brand-text span{display:inline-block;margin-left:4px;font-size:12px;font-weight:600;color:var(--brand);}
.nav-links{display:none;align-items:center;gap:4px;margin-left:8px;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  border-radius:8px;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.active{color:var(--brand);font-weight:600;}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:2px;
  height:3px;
  border-radius:3px;
  background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.phone-link{display:none;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink);}
.phone-link i{color:var(--brand);}
.phone-link:hover{color:var(--brand);}
.nav-cta{display:none;padding:10px 22px;font-size:14.5px;}
.nav-toggle{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  color:var(--ink);
  font-size:22px;
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.nav-toggle:hover{border-color:var(--brand-line);color:var(--brand);background:var(--brand-soft);}
@media(min-width:992px){
  .nav-links{display:flex;}
  .nav-actions{margin-left:auto;}
  .nav-cta{display:inline-flex;}
  .nav-toggle{display:none;}
}
@media(min-width:1200px){.phone-link{display:inline-flex;}}

/* ================= 移动抽屉 ================= */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(15,26,43,.45);
  opacity:0;
  visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;
  z-index:1050;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;
  top:0;
  right:0;
  z-index:1060;
  display:flex;
  flex-direction:column;
  width:min(86vw,360px);
  height:100%;
  background:#fff;
  transform:translateX(100%);
  transition:transform .3s ease;
  box-shadow:var(--sh-3);
}
.nav-drawer.open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 20px;
  border-bottom:1px solid var(--line);
}
.drawer-close{
  width:38px;height:38px;border-radius:var(--r-sm);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:20px;color:var(--ink-2);border:1px solid var(--line);
}
.drawer-close:hover{color:var(--brand);border-color:var(--brand-line);background:var(--brand-soft);}
.drawer-nav{padding:8px 0;overflow-y:auto;flex:1;}
.drawer-nav a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:44px;
  padding:0 20px;
  font-size:15px;
  color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--brand);background:var(--brand-soft);}
.drawer-foot{padding:16px 20px 22px;border-top:1px solid var(--line);}
.drawer-foot .btn-main{width:100%;}
.drawer-note{margin-top:12px;font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:6px;}

/* ================= 提示条 ================= */
.notice-bar{background:var(--accent-soft);border-bottom:1px solid #FFE1C8;}
.notice-inner{display:flex;align-items:flex-start;gap:10px;padding:12px 0;font-size:14px;color:#8A4310;}
.notice-inner i{color:var(--accent);font-size:17px;line-height:1.5;}

/* ================= Hero ================= */
.page-hero{padding:56px 0 60px;background:#fff;border-bottom:1px solid var(--line);}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
.crumbs{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-3);margin-bottom:18px;overflow-x:auto;white-space:nowrap;}
.crumbs a{color:var(--ink-2);}
.crumbs a:hover{color:var(--brand);}
.crumbs .current{color:var(--brand);font-weight:600;}
.page-hero h1{font-size:clamp(26px,3.6vw,42px);font-weight:700;letter-spacing:-.4px;}
.hero-sub{margin-top:16px;font-size:clamp(16px,1.4vw,19px);color:var(--ink-2);max-width:600px;line-height:1.75;}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-points{display:flex;flex-wrap:wrap;gap:20px;margin-top:24px;}
.hero-points li{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--ink-2);}
.hero-points i{color:var(--ok);font-size:17px;}
.hero-figure{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);}
.hero-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;}
@media(min-width:992px){
  .page-hero{padding:64px 0 68px;}
  .hero-grid{grid-template-columns:7fr 5fr;gap:48px;}
}

/* ================= 通用板块 ================= */
.section{padding:48px 0;}
.section-alt{background:#fff;}
.section-head{max-width:760px;margin-bottom:32px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  font-size:12.5px;
  font-weight:600;
  color:var(--brand);
  background:var(--brand-soft);
  border-radius:999px;
  margin-bottom:14px;
}
.section-title{font-size:clamp(22px,2.6vw,32px);font-weight:700;}
.section-sub{margin-top:14px;font-size:16px;color:var(--ink-2);line-height:1.8;}
.section-head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px;}
@media(min-width:768px){
  .section{padding:72px 0;}
}

/* ================= 引导段落 ================= */
.intro-grid{display:grid;grid-template-columns:1fr;gap:22px;}
.intro-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px;
  box-shadow:var(--sh-1);
}
.intro-card h3{font-size:18px;margin-bottom:10px;}
.intro-card p{font-size:15px;color:var(--ink-2);line-height:1.85;}
@media(min-width:992px){.intro-grid{grid-template-columns:repeat(3,1fr);gap:24px;}}

/* ================= 优惠列表（横向卡片） ================= */
.promo-list{display:flex;flex-direction:column;gap:20px;}
.promo-row{
  display:grid;
  grid-template-columns:1fr;
  gap:18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:18px;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.promo-row:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.promo-thumb{border-radius:var(--r-md);overflow:hidden;}
.promo-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.promo-body h3{font-size:19px;margin:10px 0 8px;}
.promo-body p{font-size:14.5px;color:var(--ink-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.promo-meta{display:flex;flex-wrap:wrap;gap:14px;margin-top:14px;font-size:13px;color:var(--ink-3);}
.promo-meta span{display:inline-flex;align-items:center;gap:5px;}
.promo-meta i{color:var(--brand);}
.promo-side{display:flex;flex-direction:column;justify-content:center;gap:14px;align-items:flex-start;}
.price{display:flex;align-items:baseline;gap:10px;}
.price-now{font-size:26px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1;}
.price-now small{font-size:13px;font-weight:600;color:var(--ink-3);margin-left:2px;}
.price-old{font-size:14px;color:var(--ink-3);text-decoration:line-through;font-variant-numeric:tabular-nums;}
.price-note{font-size:13px;color:var(--ink-3);}
@media(min-width:768px){
  .promo-row{grid-template-columns:240px 1fr auto;gap:24px;padding:20px;align-items:center;}
  .promo-thumb img{aspect-ratio:4/3;height:100%;}
  .promo-side{min-width:170px;align-items:flex-end;text-align:right;}
}

/* ================= 数据指标条 ================= */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
}
.stat-item{background:#fff;padding:22px 20px;text-align:center;}
.stat-num{font-size:clamp(24px,2.6vw,32px);font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2;}
.stat-num small{font-size:14px;font-weight:600;margin-left:2px;color:var(--brand);}
.stat-label{margin-top:8px;font-size:14px;color:var(--ink-2);}
@media(min-width:768px){.stat-strip{grid-template-columns:repeat(4,1fr);}}

/* ================= 适用场景 ================= */
.scene-grid{display:grid;grid-template-columns:1fr;gap:24px;}
.scene-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;
  flex-direction:column;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.scene-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.scene-body{padding:22px;}
.scene-body h3{font-size:18px;margin-bottom:10px;}
.scene-body p{font-size:14.5px;color:var(--ink-2);line-height:1.8;}
.scene-body ul{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.scene-body li{display:flex;align-items:flex-start;gap:8px;font-size:14px;color:var(--ink-2);}
.scene-body li i{color:var(--ok);margin-top:3px;}
@media(min-width:768px){.scene-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:992px){.scene-grid{grid-template-columns:repeat(3,1fr);}}

/* ================= 使用流程 ================= */
.step-track{display:grid;grid-template-columns:1fr;gap:20px;}
.step-item{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px 22px;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:var(--brand-line);}
.step-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:var(--brand-soft);color:var(--brand);
  font-weight:700;font-size:15px;font-variant-numeric:tabular-nums;
}
.step-item h3{font-size:17px;margin:14px 0 8px;}
.step-item p{font-size:14.5px;color:var(--ink-2);line-height:1.8;}
.step-item i.step-ico{position:absolute;top:22px;right:22px;font-size:22px;color:var(--brand-line);}
@media(min-width:768px){.step-track{grid-template-columns:repeat(2,1fr);}}
@media(min-width:992px){.step-track{grid-template-columns:repeat(4,1fr);}}

/* ================= 图文说明 ================= */
.notes-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
.notes-figure{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);}
.notes-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.notes-list{display:flex;flex-direction:column;gap:14px;margin-top:22px;}
.notes-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:14px 16px;
  font-size:14.5px;
  color:var(--ink-2);
  line-height:1.75;
}
.notes-list i{color:var(--brand);margin-top:3px;}
@media(min-width:992px){.notes-grid{grid-template-columns:5fr 6fr;gap:56px;}}

/* ================= FAQ ================= */
.faq-wrap{max-width:900px;margin-inline:auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item.open{border-color:var(--brand-line);box-shadow:var(--sh-1);}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  padding:18px 22px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  transition:color .2s ease,background .2s ease;
}
.faq-q:hover{color:var(--brand);background:var(--brand-soft);}
.faq-q i{font-size:18px;color:var(--brand);transition:transform .25s ease;flex-shrink:0;}
.faq-item.open .faq-q{color:var(--brand);}
.faq-item.open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 22px 20px;font-size:14.5px;color:var(--ink-2);line-height:1.85;}

/* ================= 相关分类 ================= */
.related-cats{display:flex;flex-wrap:wrap;gap:12px;}
.cat-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:11px 22px;
  font-size:14.5px;
  font-weight:600;
  color:var(--ink-2);
  background:#fff;
  border:1px solid var(--line);
  border-radius:999px;
  transition:all .22s ease;
}
.cat-pill:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft);transform:translateY(-2px);}
.cat-pill.is-current{background:var(--brand);border-color:var(--brand);color:#fff;}

/* ================= 底部 CTA ================= */
.cta-band{
  background:var(--brand-soft);
  border:1px solid var(--brand-line);
  border-radius:var(--r-xl);
  padding:36px 26px;
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
  align-items:center;
}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);}
.cta-band p{margin-top:12px;font-size:15px;color:var(--ink-2);line-height:1.85;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
@media(min-width:992px){
  .cta-band{grid-template-columns:1fr auto;padding:44px 48px;gap:40px;}
}

/* ================= 页脚 ================= */
.site-footer{background:#0F1A2B;color:#B9C6DA;padding:56px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:#93A3BA;max-width:340px;}
.site-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.site-footer ul{display:flex;flex-direction:column;gap:10px;}
.site-footer a{color:#B9C6DA;font-size:14px;}
.site-footer a:hover{color:#fff;}
.footer-contact li{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:#B9C6DA;}
.footer-contact i{color:#6C9BF5;margin-top:3px;flex-shrink:0;}
.footer-bottom{
  margin-top:38px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:18px 0 22px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  justify-content:space-between;
  font-size:13px;
  color:#8FA0B8;
}
@media(min-width:576px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media(min-width:992px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}}

/* ================= 移动吸底条 ================= */
.mobile-bar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:1035;
  display:flex;
  gap:10px;
  padding:8px 14px;
  background:#fff;
  border-top:1px solid var(--line);
  box-shadow:0 -6px 18px rgba(16,37,74,.08);
}
.mobile-bar a{flex:1;padding:12px 10px;font-size:15px;}
@media(min-width:768px){.mobile-bar{display:none;}}
@media(max-width:767.98px){body{padding-bottom:70px;}}

/* ================= 回到顶部 ================= */
.to-top{
  position:fixed;
  right:18px;
  bottom:78px;
  z-index:1036;
  width:44px;height:44px;
  display:none;
  align-items:center;justify-content:center;
  border-radius:50%;
  background:#fff;
  border:1px solid var(--line);
  color:var(--brand);
  font-size:18px;
  box-shadow:var(--sh-2);
  transition:transform .22s ease,background .22s ease,color .22s ease;
}
.to-top.show{display:inline-flex;}
.to-top:hover{background:var(--brand);color:#fff;transform:translateY(-3px);}
@media(min-width:768px){.to-top{right:24px;bottom:24px;}}