/* roulang page: index */
:root{
  --brand:#2F6BFF;
  --brand-dark:#1E4FD8;
  --brand-light:#EAF1FF;
  --accent:#12B8A6;
  --accent-light:#E4F8F5;
  --warn:#FF7A45;
  --warn-light:#FFF0E8;
  --bg:#F7FAFF;
  --surface:#FFFFFF;
  --surface-2:#EEF4FF;
  --text:#0F1B2D;
  --muted:#5B6B82;
  --border:#DDE7F5;
  --border-soft:#E4ECF9;
  --success:#16A34A;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-sm:0 4px 14px rgba(15,27,45,.05);
  --shadow:0 12px 30px rgba(15,27,45,.08);
  --shadow-lg:0 22px 48px rgba(15,27,45,.12);
  --container:1200px;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  padding-bottom:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:700;line-height:1.3;color:var(--text);letter-spacing:.2px;}
h1{font-size:clamp(34px,5vw,54px);}
h2{font-size:clamp(24px,3vw,34px);}
h3{font-size:clamp(18px,2vw,22px);}
p{margin:0 0 1.2em;color:var(--muted);}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media(min-width:1200px){.container{max-width:1280px;}}
.section{padding:72px 0;}
.section--tight{padding:52px 0;}
.section--alt{background:var(--surface);}
.section-head{max-width:820px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.6px;
  color:var(--brand);background:var(--brand-light);
  border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.eyebrow.is-accent{color:#0E8C7E;background:var(--accent-light);}
.eyebrow.is-warn{color:#D9551F;background:var(--warn-light);}
.lead{font-size:17px;color:var(--muted);max-width:800px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:15px 26px;border-radius:var(--radius-sm);
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  text-align:center;white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px rgba(47,107,255,.26);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;box-shadow:0 14px 28px rgba(30,79,216,.3);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 14px rgba(30,79,216,.24);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--border);box-shadow:var(--shadow-sm);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);border-color:#C6D9FF;}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 22px rgba(18,184,166,.26);}
.btn-accent:hover{background:#0EA192;color:#fff;transform:translateY(-1px);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  font-weight:600;color:var(--brand);padding:4px 0;
}
.btn-link i{transition:transform .2s ease;}
.btn-link:hover i{transform:translateX(4px);}
.btn-block{width:100%;}
.btn-sm{padding:11px 18px;font-size:14px;}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--border);
}
.header-inner{display:flex;align-items:center;gap:24px;height:74px;}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand) 0%,var(--accent) 100%);
  color:#fff;font-size:18px;box-shadow:0 8px 18px rgba(47,107,255,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:17px;font-weight:700;color:var(--text);letter-spacing:.3px;}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--muted);letter-spacing:.4px;}
.main-nav{display:none;align-items:center;gap:6px;margin-left:auto;}
.main-nav a{
  position:relative;padding:10px 14px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:500;color:#3C4A60;
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.main-nav a:hover{color:var(--brand);background:var(--brand-light);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--brand);font-weight:600;background:var(--brand-light);}
.main-nav a.active::after{transform:scaleX(1);}
.header-cta{display:none;}
.nav-toggle{
  margin-left:auto;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--border);background:#fff;color:var(--brand);font-size:18px;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--brand-light);}
.mobile-drawer{
  display:none;border-top:1px solid var(--border);background:#fff;padding:14px 20px 22px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 12px;border-radius:var(--radius-sm);color:#3C4A60;font-size:15.5px;font-weight:500;
}
.mobile-drawer a:hover,.mobile-drawer a.active{background:var(--brand-light);color:var(--brand);}
.mobile-drawer .btn{margin-top:12px;}
@media(min-width:992px){
  .main-nav{display:flex;}
  .header-cta{display:inline-flex;}
  .nav-toggle{display:none;}
  .mobile-drawer{display:none !important;}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    linear-gradient(105deg,rgba(247,250,255,.97) 0%,rgba(234,241,255,.86) 48%,rgba(247,250,255,.72) 100%),
    url("/assets/images/backpic/back-1.png") center/cover no-repeat;
  padding:64px 0 72px;
}
.hero-grid{display:grid;grid-template-columns:1fr;gap:44px;align-items:center;}
.hero h1{margin-bottom:18px;}
.hero h1 span{color:var(--brand);}
.hero-sub{font-size:17px;color:#41506B;max-width:620px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.trust-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;max-width:640px;}
.trust-item{
  display:flex;align-items:center;gap:10px;background:#fff;
  border:1px solid var(--border-soft);border-radius:var(--radius-md);
  padding:12px 14px;box-shadow:var(--shadow-sm);
  font-size:14px;font-weight:500;color:#3C4A60;
}
.trust-item i{color:var(--accent);font-size:16px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:20px;box-shadow:var(--shadow-lg);
}
.hero-float{
  position:absolute;left:-6px;bottom:20px;background:#fff;border-radius:14px;
  padding:14px 18px;box-shadow:var(--shadow);border:1px solid var(--border-soft);
  display:flex;align-items:center;gap:12px;
}
.hero-float i{
  width:38px;height:38px;border-radius:10px;background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:16px;
}
.hero-float strong{display:block;font-size:15px;}
.hero-float span{font-size:12.5px;color:var(--muted);}
@media(min-width:768px){
  .hero-grid{grid-template-columns:1.05fr .95fr;}
  .trust-row{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media(min-width:992px){
  .hero{padding:86px 0 96px;}
}

/* ---------- 数据条 ---------- */
.stats-bar{
  background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border);
}
.stats-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;padding:30px 0;}
.stat{text-align:center;padding:8px;}
.stat strong{display:block;font-size:clamp(24px,3vw,34px);font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;}
.stat span{font-size:13.5px;color:var(--muted);}
@media(min-width:768px){.stats-grid{grid-template-columns:repeat(4,minmax(0,1fr));}}

/* ---------- 频道卡片 ---------- */
.channel-grid{display:grid;grid-template-columns:1fr;gap:24px;}
.channel-card{
  background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.channel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(47,107,255,.28);}
.channel-icon{
  width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-light);color:var(--brand);font-size:20px;margin-bottom:18px;
}
.channel-card h3{margin-bottom:10px;font-size:19px;}
.channel-card p{font-size:14.5px;margin-bottom:16px;}
.channel-list li{
  display:flex;gap:8px;align-items:flex-start;
  font-size:14px;color:#465468;padding:5px 0;
}
.channel-list i{color:var(--accent);font-size:13px;margin-top:5px;}
@media(min-width:768px){.channel-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}

/* ---------- 优惠阶梯 ---------- */
.ladder{position:relative;max-width:900px;margin:0 auto;}
.ladder::before{
  content:"";position:absolute;left:22px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,var(--brand-light),var(--brand),var(--accent));
  border-radius:2px;
}
.ladder-item{position:relative;padding:0 0 28px 64px;}
.ladder-item:last-child{padding-bottom:0;}
.ladder-dot{
  position:absolute;left:12px;top:6px;width:22px;height:22px;border-radius:50%;
  background:#fff;border:3px solid var(--brand);box-shadow:0 0 0 5px rgba(47,107,255,.1);
}
.ladder-item:nth-child(3) .ladder-dot{border-color:var(--accent);box-shadow:0 0 0 5px rgba(18,184,166,.12);}
.ladder-item:nth-child(4) .ladder-dot{border-color:var(--warn);box-shadow:0 0 0 5px rgba(255,122,69,.14);}
.ladder-card{
  background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--radius-lg);
  padding:24px 26px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.ladder-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.ladder-top{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:8px;}
.ladder-top h3{margin:0;font-size:19px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;padding:4px 11px;border-radius:999px;
  background:var(--brand-light);color:var(--brand);
}
.badge.accent{background:var(--accent-light);color:#0E8C7E;}
.badge.warn{background:var(--warn-light);color:#D9551F;}
.ladder-meta{font-size:13.5px;color:var(--muted);margin-bottom:12px;}
.ladder-benefits{display:grid;grid-template-columns:1fr;gap:6px 18px;margin-bottom:16px;}
.ladder-benefits li{display:flex;gap:8px;font-size:14px;color:#465468;}
.ladder-benefits i{color:var(--brand);font-size:12px;margin-top:6px;}
@media(min-width:768px){
  .ladder-benefits{grid-template-columns:repeat(2,minmax(0,1fr));}
}

/* ---------- 套餐对比 ---------- */
.table-scroll{overflow-x:auto;border-radius:var(--radius-lg);box-shadow:var(--shadow);background:#fff;border:1px solid var(--border-soft);}
.compare{width:100%;min-width:720px;border-collapse:collapse;font-size:14.5px;}
.compare th,.compare td{padding:18px 20px;text-align:left;border-bottom:1px solid var(--border-soft);}
.compare thead th{
  background:var(--surface-2);font-size:15px;font-weight:700;color:var(--text);white-space:nowrap;
}
.compare thead th.reco{background:var(--brand);color:#fff;}
.compare tbody tr:nth-child(even){background:#FAFCFF;}
.compare tbody td:first-child{font-weight:600;color:#33415A;width:190px;}
.compare .price{font-size:22px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;white-space:nowrap;}
.compare .price small{font-size:12.5px;font-weight:500;color:var(--muted);}
.compare tbody td.reco-col{background:rgba(47,107,255,.05);}
.compare .yes{color:var(--success);font-weight:600;}
.compare .no{color:#9AA8BD;}
.compare tfoot td{padding:20px;background:#fff;border-bottom:none;}
.reco-tag{
  display:inline-block;margin-left:8px;font-size:11.5px;font-weight:600;
  background:var(--warn);color:#fff;border-radius:999px;padding:2px 9px;vertical-align:middle;
}

/* ---------- 限时入口 ---------- */
.limited{
  background:linear-gradient(120deg,#12233F 0%,#1E4FD8 58%,#12B8A6 100%);
  border-radius:22px;padding:36px;color:#fff;overflow:hidden;position:relative;
  box-shadow:var(--shadow-lg);
}
.limited::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.22),transparent 70%);
}
.limited-inner{position:relative;display:grid;grid-template-columns:1fr;gap:26px;align-items:center;}
.limited h2{color:#fff;margin-bottom:10px;font-size:clamp(22px,2.6vw,30px);}
.limited p{color:rgba(255,255,255,.82);margin-bottom:0;font-size:15px;}
.countdown{display:flex;gap:12px;}
.countdown .unit{
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);border-radius:14px;
  padding:12px 16px;text-align:center;min-width:76px;backdrop-filter:blur(4px);
}
.countdown .unit strong{display:block;font-size:24px;font-weight:700;font-variant-numeric:tabular-nums;line-height:1.2;}
.countdown .unit span{font-size:12px;color:rgba(255,255,255,.75);}
@media(min-width:768px){.limited{padding:46px 48px;}.limited-inner{grid-template-columns:1.4fr auto;}}

/* ---------- 最新资讯 ---------- */
.news-grid{display:grid;grid-template-columns:1fr;gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--border-soft);
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;color:inherit;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(47,107,255,.28);color:inherit;}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,var(--brand-light),var(--surface-2));}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1;}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:12px;}
.news-meta .tag{
  font-size:12.5px;font-weight:600;color:var(--brand);background:var(--brand-light);
  border-radius:999px;padding:3px 11px;
}
.news-meta time{font-size:12.5px;color:var(--muted);display:inline-flex;align-items:center;gap:5px;}
.news-body h3{font-size:18px;margin-bottom:10px;line-height:1.5;}
.news-body h3 a{color:var(--text);}
.news-body h3 a:hover{color:var(--brand);}
.news-body .excerpt{
  font-size:14.5px;color:var(--muted);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body .more{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}
.news-card:hover .more i{transform:translateX(4px);}
.news-body .more i{transition:transform .2s ease;}
.news-card.is-lead{grid-column:1/-1;}
@media(min-width:768px){
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-card.is-lead{flex-direction:row;grid-column:1/-1;}
  .news-card.is-lead .news-thumb{width:48%;aspect-ratio:auto;}
  .news-card.is-lead .news-body{padding:30px 32px;}
  .news-card.is-lead .news-body h3{font-size:23px;}
}
@media(min-width:992px){.news-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.empty-state{
  background:#fff;border:1px dashed var(--border);border-radius:var(--radius-lg);
  padding:46px 24px;text-align:center;box-shadow:var(--shadow-sm);
}
.empty-state i{font-size:30px;color:var(--brand);margin-bottom:14px;display:block;}
.empty-state p{margin:0 0 16px;font-size:15px;}

/* ---------- 评价 ---------- */
.quote-grid{display:grid;grid-template-columns:1fr;gap:22px;}
.quote{
  background:#fff;border:1px solid var(--border-soft);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:14px;
}
.quote .stars{color:#FFB020;font-size:13.5px;letter-spacing:2px;}
.quote p{font-size:15px;color:#3C4A60;margin:0;}
.quote .who{display:flex;align-items:center;gap:12px;margin-top:auto;}
.quote .who span{
  width:38px;height:38px;border-radius:50%;background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;
}
.quote .who strong{display:block;font-size:14.5px;}
.quote .who em{font-style:normal;font-size:12.5px;color:var(--muted);}
@media(min-width:768px){.quote-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}

/* ---------- 表单 ---------- */
.contact-wrap{
  display:grid;grid-template-columns:1fr;gap:36px;
  background:#fff;border:1px solid var(--border-soft);border-radius:22px;
  padding:32px;box-shadow:var(--shadow);
}
.contact-side h2{margin-bottom:14px;}
.contact-side p{font-size:15px;}
.contact-points li{display:flex;gap:12px;align-items:flex-start;padding:10px 0;font-size:14.5px;color:#3C4A60;}
.contact-points i{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:14px;
}
.form-grid{display:grid;grid-template-columns:1fr;gap:18px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:#33415A;}
.field label .req{color:#E5484D;margin-left:4px;}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--border);border-radius:var(--radius-sm);
  background:#FBFDFF;padding:0 15px;font-size:15px;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field input,.field select{height:50px;}
.field textarea{min-height:120px;padding:13px 15px;line-height:1.7;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#9AA8BD;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px rgba(47,107,255,.12);outline:none;
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:#E5484D;background:#FFF7F7;}
.field .err{display:none;font-size:12.5px;color:#E5484D;margin-top:6px;}
.field.has-error .err{display:block;}
.checkline{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--muted);line-height:1.7;}
.checkline input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand);}
.form-note{font-size:13px;color:var(--muted);}
.form-alert{
  display:none;border-radius:var(--radius-sm);padding:12px 16px;font-size:14px;margin-bottom:6px;
}
.form-alert.show{display:block;}
.form-alert.ok{background:#EAF9F0;color:#12813F;border:1px solid #BFE9D0;}
.form-alert.bad{background:#FFF1F1;color:#C0322F;border:1px solid #F5C9C9;}
@media(min-width:768px){
  .form-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .field.full{grid-column:1/-1;}
}
@media(min-width:992px){
  .contact-wrap{grid-template-columns:.85fr 1.15fr;padding:44px;gap:44px;}
}

/* ---------- FAQ ---------- */
.faq{max-width:880px;margin:0 auto;}
.faq details{
  background:#fff;border:1px solid var(--border-soft);border-radius:var(--radius-md);
  margin-bottom:14px;box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq details:hover{border-color:rgba(47,107,255,.3);box-shadow:var(--shadow);}
.faq summary{
  list-style:none;cursor:pointer;padding:20px 54px 20px 22px;position:relative;
  font-size:16.5px;font-weight:600;color:var(--text);
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;
  position:absolute;right:22px;top:50%;transform:translateY(-50%);color:var(--brand);
  transition:transform .24s ease;
}
.faq details[open] summary::after{transform:translateY(-50%) rotate(180deg);}
.faq details[open] summary{color:var(--brand);}
.faq .answer{padding:0 22px 22px;font-size:15px;color:var(--muted);line-height:1.8;}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,#F2F7FF 0%,#E4F8F5 100%);
  border:1px solid var(--border-soft);border-radius:22px;padding:40px 32px;
  display:grid;grid-template-columns:1fr;gap:24px;align-items:center;box-shadow:var(--shadow-sm);
}
.cta-band h2{margin-bottom:10px;}
.cta-band p{margin-bottom:0;font-size:15px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
@media(min-width:992px){.cta-band{grid-template-columns:1.5fr auto;padding:48px 52px;}}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#0F1B2D;color:#B9C6DA;margin-top:72px;padding:56px 0 28px;
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text em{color:#8595AC;}
.footer-brand p{color:#93A3BA;font-size:14px;margin:16px 0 0;max-width:340px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;}
.footer-col a{display:block;color:#93A3BA;font-size:14px;padding:5px 0;}
.footer-col a:hover{color:#fff;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#93A3BA;padding:5px 0;align-items:flex-start;}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:13px;}
.qr-box{
  width:118px;height:118px;border-radius:14px;background:#1B2B44;border:1px dashed #3A4C68;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;color:#7E90A9;font-size:12px;
}
.qr-box i{font-size:24px;color:#5A6E8C;}
.footer-bottom{
  margin-top:38px;padding-top:22px;border-top:1px solid rgba(255,255,255,.09);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#7E90A9;
}
.footer-bottom a{color:#93A3BA;}
.footer-bottom a:hover{color:#fff;}
@media(min-width:768px){
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;}
}

/* ---------- 移动底部 Tab ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;background:#fff;
  border-top:1px solid var(--border);box-shadow:0 -6px 20px rgba(15,27,45,.08);
  display:grid;grid-template-columns:repeat(5,1fr);
  padding:6px 4px calc(6px + env(safe-area-inset-bottom));
}
.tabbar a{
  display:flex;flex-direction:column;align-items:center;gap:3px;
  font-size:11.5px;color:#8595AC;padding:6px 2px;border-radius:10px;
}
.tabbar a i{font-size:17px;}
.tabbar a.active{color:var(--brand);font-weight:600;}
.tabbar a:hover{color:var(--brand);}
@media(min-width:768px){.tabbar{display:none;}}
@media(max-width:767px){
  body{padding-bottom:76px;}
  .site-footer{padding-bottom:104px;}
  .section{padding:48px 0;}
  .section--tight{padding:40px 0;}
  .hero{padding:44px 0 52px;}
  .contact-wrap{padding:24px;}
  .limited{padding:28px 22px;}
  .countdown .unit{min-width:64px;padding:10px 12px;}
}

/* roulang page: article */
:root{
  --primary:#2F6BFF;
  --primary-dark:#1E4FD8;
  --primary-light:#EAF1FF;
  --accent:#12B8A6;
  --orange:#FF7A45;
  --bg:#F7FAFF;
  --surface:#FFFFFF;
  --surface-2:#EEF4FF;
  --text:#0F1B2D;
  --muted:#5B6B82;
  --border:#DDE7F5;
  --border-soft:#E4ECF9;
  --success:#16A34A;
  --warning:#F97316;
  --radius-lg:18px;
  --radius:16px;
  --radius-sm:10px;
  --shadow-sm:0 6px 18px rgba(15,27,45,.06);
  --shadow:0 12px 30px rgba(15,27,45,.08);
  --shadow-lg:0 20px 46px rgba(15,27,45,.14);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
a:hover{color:var(--primary-dark)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;letter-spacing:-.2px}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-sm);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease,transform .15s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(47,107,255,.24)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;box-shadow:0 12px 26px rgba(47,107,255,.32);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(47,107,255,.28)}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--border)}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);border-color:#C9DAFF}
.btn-light{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.42)}
.btn-light:hover{background:rgba(255,255,255,.24);color:#fff}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--primary);font-weight:600;font-size:15px}
.btn-text i{transition:transform .2s ease}
.btn-text:hover i{transform:translateX(4px)}

/* ---------- 头部与导航 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--border);box-shadow:0 4px 18px rgba(15,27,45,.04)}
.header-inner{display:flex;align-items:center;gap:22px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--accent));color:#fff;font-size:18px;
  box-shadow:0 8px 18px rgba(47,107,255,.28);
}
.brand-text strong{display:block;font-size:17px;font-weight:700;line-height:1.3}
.brand-text em{display:block;font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.4px}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:auto}
.main-nav a{position:relative;color:var(--muted);font-size:15px;font-weight:500;padding:6px 2px}
.main-nav a:hover{color:var(--primary)}
.main-nav a.active{color:var(--primary);font-weight:600}
.main-nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--primary)}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);
  background:#fff;color:var(--text);font-size:17px;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:#C9DAFF;color:var(--primary)}
.mobile-drawer{display:none;border-top:1px solid var(--border);background:#fff}
.mobile-drawer.open{display:block}
.mobile-drawer .drawer-inner{padding:14px 20px 22px;display:grid;gap:6px}
.mobile-drawer a{padding:12px 14px;border-radius:12px;color:var(--text);font-weight:500;background:#F8FBFF}
.mobile-drawer a.active{background:var(--primary-light);color:var(--primary-dark);font-weight:600}
.mobile-drawer .btn{margin-top:10px}

/* ---------- 面包屑与文章头 ---------- */
.article-hero{
  background:
    radial-gradient(1000px 380px at 12% -12%,rgba(47,107,255,.13),transparent 62%),
    linear-gradient(180deg,#F3F8FF 0%,#FFFFFF 100%);
  border-bottom:1px solid var(--border);
  padding:34px 0 44px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#B9C7DC}
.breadcrumb .current{color:var(--primary);font-weight:600}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:var(--primary-light);color:var(--primary-dark);font-size:13px;font-weight:600;margin-bottom:16px;
}
.article-hero h1{font-size:clamp(26px,3.6vw,40px);line-height:1.35;margin:0 0 18px;max-width:900px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13.5px;color:var(--muted)}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-row i{color:var(--primary)}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;
  background:#fff;border:1px solid var(--border);color:var(--muted);font-size:12.5px;font-weight:500;
}
.chip:hover{border-color:#C9DAFF;color:var(--primary)}
.hero-cover{margin-top:26px;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border-soft);box-shadow:var(--shadow);max-width:1000px}
.hero-cover img{width:100%;aspect-ratio:16/7;object-fit:cover}
.img-fallback{background:linear-gradient(135deg,#EAF1FF,#E6FBF8);}

/* ---------- 主体布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:32px;padding:48px 0 76px;align-items:start}
.article-card{
  background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);padding:36px 40px;
}
.article-content{max-width:820px;font-size:16px;line-height:1.75;color:#1B293F}
.article-content > *:first-child{margin-top:0}
.article-content h2{
  font-size:clamp(21px,2.4vw,27px);margin:1.9em 0 .75em;padding-left:14px;
  border-left:4px solid var(--primary);line-height:1.45;
}
.article-content h3{font-size:clamp(18px,1.9vw,21px);margin:1.6em 0 .6em;color:#152840}
.article-content h4{font-size:17px;margin:1.4em 0 .5em}
.article-content p{margin:0 0 1.2em}
.article-content ul,.article-content ol{margin:0 0 1.3em;padding-left:1.3em}
.article-content ul{list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{margin-bottom:.5em}
.article-content a{border-bottom:1px dashed rgba(47,107,255,.55)}
.article-content a:hover{border-bottom-style:solid}
.article-content blockquote{
  margin:1.6em 0;padding:14px 20px;background:#F8FBFF;border-left:4px solid var(--primary);
  border-radius:0 12px 12px 0;color:#31435E;
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{border-radius:14px;margin:1.6em auto;box-shadow:var(--shadow-sm)}
.article-content figure{margin:1.6em 0}
.article-content figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-content table{width:100%;border-collapse:collapse;font-size:14.5px;display:block;overflow-x:auto;white-space:nowrap}
.article-content th,.article-content td{border:1px solid var(--border);padding:10px 14px;text-align:left}
.article-content th{background:var(--surface-2);font-weight:600}
.article-content tbody tr:nth-child(even){background:#FAFCFF}
.article-content code{background:#F1F5FC;border-radius:6px;padding:2px 6px;font-size:14px;color:#1E4FD8}
.article-content pre{background:#F1F5FC;border:1px solid var(--border);border-radius:12px;padding:16px;overflow-x:auto}
.article-content hr{border:0;border-top:1px solid var(--border);margin:2em 0}

.article-foot{
  margin-top:34px;padding-top:22px;border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
}
.article-foot .back-links{display:flex;flex-wrap:wrap;gap:10px}

/* 空态 */
.empty-state{
  padding:44px 28px;text-align:center;background:#F8FBFF;border:1px dashed var(--border);
  border-radius:var(--radius);color:var(--muted);
}
.empty-state i{font-size:34px;color:#A9BEDF;display:block;margin-bottom:14px}
.empty-state strong{display:block;font-size:19px;color:var(--text);margin-bottom:8px}

/* ---------- 侧栏 ---------- */
.sidebar{display:grid;gap:20px;position:sticky;top:96px}
.side-card{background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:22px}
.side-card h3{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:9px}
.side-card h3 i{color:var(--primary);font-size:15px}
.toc-list{display:grid;gap:4px;max-height:320px;overflow:auto;padding-right:4px}
.toc-list a{display:block;font-size:14px;color:var(--muted);padding:7px 10px;border-radius:9px;border-left:2px solid transparent;line-height:1.55}
.toc-list a:hover{background:var(--primary-light);color:var(--primary-dark);border-left-color:var(--primary)}
.toc-list a.toc-l3{padding-left:22px;font-size:13.5px}
.side-list{display:grid;gap:12px}
.side-list a{display:flex;gap:10px;font-size:14px;color:#2A3B55;line-height:1.6}
.side-list a:hover{color:var(--primary)}
.side-list .num{
  flex:0 0 22px;height:22px;border-radius:7px;background:var(--surface-2);color:var(--primary-dark);
  font-size:12px;font-weight:700;display:grid;place-items:center;margin-top:3px;
}
.side-cta{background:linear-gradient(140deg,#2F6BFF,#1E4FD8);border:0;color:#fff}
.side-cta h3{color:#fff}
.side-cta h3 i{color:#BFE0FF}
.side-cta p{font-size:14px;color:rgba(255,255,255,.86);margin-bottom:16px}
.side-cta .btn-ghost{width:100%;background:#fff;border-color:#fff;color:var(--primary-dark)}
.side-cta .btn-ghost:hover{background:#EAF1FF;color:var(--primary-dark)}

/* ---------- 板块通用 ---------- */
.section{padding:72px 0}
.section-head{max-width:760px;margin-bottom:38px}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary-dark);
  background:var(--primary-light);border-radius:999px;padding:6px 14px;margin-bottom:14px;
}
.section-head h2{font-size:clamp(24px,3vw,34px);margin-bottom:12px}
.section-head p{color:var(--muted);margin:0}
.section-alt{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}

/* ---------- 相关阅读 ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:rgba(47,107,255,.28)}
.card .thumb{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#EAF1FF,#E6FBF8)}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .thumb img{transform:scale(1.05)}
.card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:17px;line-height:1.55}
.card-body h3 a{color:var(--text)}
.card-body h3 a:hover{color:var(--primary)}
.card-body p{font-size:14px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;flex-wrap:wrap;gap:8px 14px;font-size:12.5px;color:var(--muted);margin-top:auto}
.card-meta span{display:inline-flex;align-items:center;gap:6px}
.badge{display:inline-flex;align-items:center;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:600;background:var(--primary-light);color:var(--primary-dark)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--border-soft);border-radius:14px;box-shadow:var(--shadow-sm);overflow:hidden}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:transparent;border:0;text-align:left;font-size:16px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--primary)}
.faq-q i{transition:transform .25s ease;color:var(--primary);font-size:14px;flex:0 0 auto}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{display:none;padding:0 22px 20px;font-size:15px;color:#3B4C66;line-height:1.8}
.faq-item.open .faq-a{display:block}

/* ---------- CTA ---------- */
.cta-band{
  background:
    radial-gradient(700px 320px at 88% 8%,rgba(18,184,166,.34),transparent 60%),
    linear-gradient(135deg,#1E4FD8,#2F6BFF 58%,#12B8A6 140%);
  color:#fff;border-radius:var(--radius-lg);padding:52px 44px;
  display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;
  box-shadow:var(--shadow-lg);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,30px);margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.88);margin:0;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:#F2F7FF;border-top:1px solid var(--border);padding:60px 0 26px;margin-top:10px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1fr;gap:34px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--muted);margin:0;max-width:360px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer-col a{display:block;font-size:14px;color:var(--muted);padding:5px 0;width:fit-content}
.footer-col a:hover{color:var(--primary)}
.footer-contact{display:grid;gap:10px;font-size:14px;color:var(--muted)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;line-height:1.6}
.footer-contact i{color:var(--primary);margin-top:4px}
.qr-box{
  width:118px;height:118px;border-radius:14px;background:#fff;border:1px dashed var(--border);
  display:grid;place-items:center;gap:6px;color:var(--muted);font-size:12.5px;text-align:center;
}
.qr-box i{font-size:30px;color:#A9BEDF;display:block;margin-bottom:6px}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;gap:10px 26px;justify-content:space-between;font-size:13px;color:var(--muted);
}

/* ---------- 移动端底部 Tab ---------- */
.bottom-tab{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:90;
  background:#fff;border-top:1px solid var(--border);box-shadow:0 -6px 20px rgba(15,27,45,.08);
  padding-bottom:env(safe-area-inset-bottom);
}
.bottom-tab .tab-inner{display:grid;grid-template-columns:repeat(5,1fr)}
.bottom-tab a{
  padding:9px 2px 10px;display:flex;flex-direction:column;align-items:center;gap:4px;
  font-size:11.5px;color:var(--muted);
}
.bottom-tab a i{font-size:17px}
.bottom-tab a.active{color:var(--primary);font-weight:600}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:20px;bottom:96px;z-index:70;width:44px;height:44px;border-radius:14px;
  border:1px solid var(--border);background:#fff;color:var(--primary);box-shadow:var(--shadow-sm);
  display:none;place-items:center;font-size:15px;
}
.to-top.show{display:grid}
.to-top:hover{background:var(--primary-light)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 290px;gap:26px}
  .article-card{padding:32px 30px}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:28px}
}
@media (max-width:991px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn{display:none}
  .article-layout{grid-template-columns:minmax(0,1fr);padding:36px 0 56px}
  .sidebar{position:static;grid-template-columns:repeat(2,minmax(0,1fr))}
  .sidebar .side-cta{grid-column:1 / -1}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .section{padding:56px 0}
  .cta-band{padding:42px 30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media (max-width:767px){
  body{padding-bottom:74px}
  .site-footer{padding-bottom:96px}
  .bottom-tab{display:block}
  .article-hero{padding:24px 0 32px}
  .hero-cover img{aspect-ratio:16/9}
  .article-card{padding:24px 20px;border-radius:14px}
  .sidebar{grid-template-columns:minmax(0,1fr)}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .section{padding:46px 0}
  .section-head{margin-bottom:28px}
  .cta-band{padding:34px 22px;border-radius:14px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .to-top{bottom:88px;right:14px}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .brand-text em{display:none}
  .brand-text strong{font-size:15.5px}
  .breadcrumb{font-size:12.5px}
  .article-foot{flex-direction:column;align-items:flex-start}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a{padding:0 18px 18px}
}

/* roulang page: category1 */
:root{
  --blue:#2F6BFF;
  --blue-dark:#1E4FD8;
  --blue-light:#EAF1FF;
  --teal:#12B8A6;
  --teal-light:#E4F7F4;
  --orange:#FF7A45;
  --orange-light:#FFF0E9;
  --bg:#F7FAFF;
  --surface:#FFFFFF;
  --surface-2:#EEF4FF;
  --text:#0F1B2D;
  --muted:#5B6B82;
  --border:#DDE7F5;
  --border-soft:#E4ECF9;
  --success:#16A34A;
  --radius-lg:16px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow-card:0 12px 30px rgba(15,27,45,.08);
  --shadow-hover:0 18px 40px rgba(15,27,45,.14);
  --shadow-nav:0 2px 14px rgba(15,27,45,.06);
  --container:1200px;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--blue);}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--text);letter-spacing:.2px;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
.section{padding:76px 0;}
.section--tight{padding:56px 0;}
.section--surface{background:var(--surface);}
.section-head{max-width:820px;margin-bottom:36px;}
.section-head.center{max-width:760px;margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px;}
.section-head p{color:var(--muted);margin:0;font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--blue-dark);
  background:var(--blue-light);border-radius:var(--radius-pill);
  padding:6px 14px;margin-bottom:16px;
}
.eyebrow i{font-size:12px;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);
  box-shadow:var(--shadow-nav);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:76px;}
.brand{display:inline-flex;align-items:center;gap:12px;}
.brand-mark{
  width:42px;height:42px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--blue),var(--blue-dark));
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;
  box-shadow:0 8px 18px rgba(47,107,255,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:17px;font-weight:700;letter-spacing:.2px;}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);}
.main-nav{display:flex;align-items:center;gap:6px;}
.main-nav a{
  position:relative;display:inline-block;
  padding:10px 14px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:500;color:#33445c;
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;
  background:var(--blue);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.main-nav a:hover{color:var(--blue);background:var(--blue-light);}
.main-nav a:hover::after{transform:scaleX(1);}
.main-nav a.active{color:var(--blue-dark);background:var(--blue-light);font-weight:600;}
.main-nav a.active::after{transform:scaleX(1);}
.header-cta{display:inline-flex;align-items:center;gap:8px;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--border);
  background:var(--surface);color:var(--text);font-size:18px;
}
.nav-toggle:hover{border-color:var(--blue);color:var(--blue);}
.mobile-drawer{
  display:none;border-top:1px solid var(--border);background:var(--surface);
  padding:12px 0 18px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;font-size:16px;color:#33445c;border-bottom:1px solid var(--border-soft);
}
.mobile-drawer a:last-child{border-bottom:none;}
.mobile-drawer a.active{color:var(--blue-dark);font-weight:600;}
.mobile-drawer a i{color:#9fb0c8;font-size:13px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 10px 24px rgba(47,107,255,.26);}
.btn-primary:hover{background:var(--blue-dark);color:#fff;box-shadow:0 14px 28px rgba(30,79,216,.32);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(30,79,216,.28);}
.btn-ghost{background:var(--surface);color:var(--blue-dark);border-color:#C9DAFB;}
.btn-ghost:hover{background:var(--blue-light);border-color:var(--blue);color:var(--blue-dark);transform:translateY(-2px);}
.btn-teal{background:var(--teal);color:#fff;box-shadow:0 10px 22px rgba(18,184,166,.24);}
.btn-teal:hover{background:#0EA294;color:#fff;transform:translateY(-2px);}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--blue-dark);
  font-size:15px;background:none;border:none;padding:0;
}
.btn-link i{transition:transform .2s ease;font-size:13px;}
.btn-link:hover i{transform:translateX(4px);}
.btn-block{width:100%;}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;color:#fff;
  background-image:linear-gradient(115deg,rgba(12,32,72,.90),rgba(23,58,133,.82) 48%,rgba(18,184,166,.66)),
                   url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:26px 26px;opacity:.5;pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:88px 0 80px;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.78);margin-bottom:20px;}
.crumb a{color:rgba(255,255,255,.86);}
.crumb a:hover{color:#fff;}
.crumb .sep{opacity:.6;}
.crumb .now{color:#fff;font-weight:600;}
.cat-hero h1{
  color:#fff;font-size:clamp(32px,4.6vw,50px);margin-bottom:18px;letter-spacing:.4px;
}
.cat-hero h1 span{color:#8FE7DC;}
.cat-hero .lede{
  font-size:17px;line-height:1.85;color:rgba(255,255,255,.88);max-width:640px;margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px;}
.hero-actions .btn-ghost{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.42);color:#fff;backdrop-filter:blur(4px);}
.hero-actions .btn-ghost:hover{background:rgba(255,255,255,.24);border-color:#fff;color:#fff;}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 26px;font-size:14px;color:rgba(255,255,255,.9);}
.hero-points span{display:inline-flex;align-items:center;gap:8px;}
.hero-points i{color:#8FE7DC;}
.hero-card{
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.28);
  border-radius:20px;padding:24px;backdrop-filter:blur(8px);
}
.hero-card h3{color:#fff;font-size:17px;margin-bottom:16px;display:flex;align-items:center;gap:10px;}
.hero-card h3 i{color:#8FE7DC;}
.hero-card ul{display:flex;flex-direction:column;gap:14px;}
.hero-card li{
  display:flex;gap:12px;font-size:14px;line-height:1.7;color:rgba(255,255,255,.9);
  padding-bottom:14px;border-bottom:1px dashed rgba(255,255,255,.22);
}
.hero-card li:last-child{border-bottom:none;padding-bottom:0;}
.hero-card li b{display:block;color:#fff;font-size:15px;font-weight:600;margin-bottom:2px;}
.hero-card li .num{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  background:rgba(255,255,255,.2);color:#fff;font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}

/* ---------- 数据条 ---------- */
.metric-strip{
  background:var(--surface);border-bottom:1px solid var(--border);
}
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.metric-item{padding:28px 20px;text-align:center;border-right:1px solid var(--border-soft);}
.metric-item:last-child{border-right:none;}
.metric-item strong{display:block;font-size:clamp(22px,2.6vw,30px);font-weight:700;color:var(--blue-dark);font-variant-numeric:tabular-nums;}
.metric-item span{display:block;font-size:14px;color:var(--muted);margin-top:4px;}

/* ---------- 时间轴 ---------- */
.timeline-scroll{overflow-x:auto;padding-bottom:8px;-webkit-overflow-scrolling:touch;}
.timeline{display:grid;grid-template-columns:repeat(4,minmax(240px,1fr));gap:20px;min-width:960px;}
.tl-card{
  position:relative;background:var(--surface);border:1px solid var(--border-soft);
  border-radius:var(--radius-lg);padding:22px 22px 24px;box-shadow:var(--shadow-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(47,107,255,.28);}
.tl-card::before{
  content:"";position:absolute;left:22px;top:0;width:44px;height:4px;border-radius:0 0 4px 4px;background:var(--blue);
}
.tl-card .tl-date{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--blue-dark);margin-bottom:10px;}
.tl-card h3{font-size:18px;margin-bottom:8px;}
.tl-card p{font-size:14.5px;color:var(--muted);margin:0 0 14px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;padding:4px 11px;border-radius:var(--radius-pill);
  background:var(--blue-light);color:var(--blue-dark);
}
.tag--teal{background:var(--teal-light);color:#0B8C7E;}
.tag--orange{background:var(--orange-light);color:#D2542A;}
.tag--gray{background:#EEF2F8;color:#5B6B82;}

/* ---------- 筛选 + 列表 ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--radius-lg);
  padding:16px 18px;box-shadow:var(--shadow-card);margin-bottom:32px;
}
.filter-bar .filter-label{font-size:14px;font-weight:600;color:var(--muted);margin-right:4px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:var(--radius-pill);
  border:1px solid var(--border);background:var(--surface);
  font-size:14px;font-weight:500;color:#42546d;
  transition:all .2s ease;
}
.chip:hover{border-color:var(--blue);color:var(--blue-dark);background:var(--blue-light);}
.chip.active{background:var(--blue);border-color:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(47,107,255,.24);}

.entry-list{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;}
.entry{
  display:grid;grid-template-columns:190px 1fr;gap:20px;
  background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--radius-lg);
  padding:18px;box-shadow:var(--shadow-card);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.entry:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(47,107,255,.28);}
.entry-thumb{position:relative;border-radius:14px;overflow:hidden;background:linear-gradient(135deg,#DCE8FF,#EEF7F5);aspect-ratio:4/3;}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.entry:hover .entry-thumb img{transform:scale(1.05);}
.entry-body{min-width:0;display:flex;flex-direction:column;}
.entry-body h3{font-size:18px;margin:10px 0 8px;line-height:1.45;}
.entry-body h3 a:hover{color:var(--blue-dark);}
.entry-body p{font-size:14.5px;color:var(--muted);margin:0 0 14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.entry-meta{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:var(--muted);margin-bottom:14px;}
.entry-meta span{display:inline-flex;align-items:center;gap:6px;}
.entry-meta i{color:#9fb0c8;font-size:12px;}
.entry-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:12px;border-top:1px dashed var(--border);}
.entry-foot .threshold{font-size:13px;color:var(--muted);}
.entry-foot .threshold b{color:var(--text);font-weight:600;}

/* ---------- 分页 ---------- */
.pager{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:44px;flex-wrap:wrap;}
.pager a,.pager span{
  min-width:42px;height:42px;padding:0 14px;border-radius:var(--radius-sm);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:600;border:1px solid var(--border);background:var(--surface);color:#42546d;
}
.pager a:hover{border-color:var(--blue);color:var(--blue-dark);background:var(--blue-light);}
.pager .current{background:var(--blue);border-color:var(--blue);color:#fff;}
.pager .disabled{color:#A9B8CC;cursor:not-allowed;background:#F4F7FC;}

/* ---------- CTA 条幅 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;color:#fff;
  background-image:linear-gradient(120deg,rgba(30,79,216,.94),rgba(47,107,255,.86) 55%,rgba(18,184,166,.82)),
                   url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center;
  padding:48px 44px;
  display:grid;grid-template-columns:1.4fr .9fr;gap:36px;align-items:center;
  box-shadow:0 20px 50px rgba(30,79,216,.24);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.8vw,32px);margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.9);margin:0 0 22px;font-size:15.5px;max-width:560px;}
.cta-band .hero-actions{margin-bottom:0;}
.cta-aside{
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);
  border-radius:16px;padding:22px;backdrop-filter:blur(6px);
}
.cta-aside h3{color:#fff;font-size:16px;margin-bottom:14px;}
.cta-aside ul{display:flex;flex-direction:column;gap:12px;font-size:14px;color:rgba(255,255,255,.92);}
.cta-aside li{display:flex;gap:10px;align-items:flex-start;}
.cta-aside i{color:#8FE7DC;margin-top:3px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{
  background:var(--surface);border:1px solid var(--border-soft);border-radius:14px;
  margin-bottom:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:rgba(47,107,255,.3);}
.faq-item.open{box-shadow:var(--shadow-card);border-color:rgba(47,107,255,.35);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:none;border:none;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--blue-dark);}
.faq-q i{color:var(--blue);font-size:14px;transition:transform .28s ease;flex:0 0 auto;}
.faq-item.open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease;}
.faq-a p{padding:0 22px 20px;margin:0;font-size:15px;color:var(--muted);line-height:1.8;}

/* ---------- Footer ---------- */
.site-footer{background:#F1F6FF;border-top:1px solid var(--border);padding:64px 0 30px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1fr;gap:36px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--muted);max-width:340px;margin:0;}
.footer-col h4{font-size:15px;margin-bottom:16px;}
.footer-col a{display:block;font-size:14px;color:var(--muted);padding:5px 0;}
.footer-col a:hover{color:var(--blue-dark);}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--muted);padding:5px 0;line-height:1.7;}
.footer-contact i{color:var(--blue);margin-top:4px;font-size:13px;}
.qr-box{
  width:110px;height:110px;border-radius:14px;border:1px dashed #BFD3F5;
  background:var(--surface);display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:8px;color:#93A6C0;font-size:13px;
}
.qr-box i{font-size:30px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:#7A8AA3;
}

/* ---------- 移动端底部 Tab ---------- */
.mobile-tab{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(255,255,255,.98);border-top:1px solid var(--border);
  box-shadow:0 -6px 20px rgba(15,27,45,.08);
  padding:6px 4px calc(6px + env(safe-area-inset-bottom,0px));
  grid-template-columns:repeat(5,1fr);
}
.mobile-tab a{
  display:flex;flex-direction:column;align-items:center;gap:3px;
  font-size:11.5px;color:#8395ad;padding:6px 0;border-radius:10px;
}
.mobile-tab a i{font-size:17px;}
.mobile-tab a.active{color:var(--blue);font-weight:600;}
.mobile-tab a.active i{color:var(--blue);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .hero-inner{gap:36px;}
  .entry{grid-template-columns:170px 1fr;}
}
@media screen and (max-width:1023px){
  .section{padding:60px 0;}
  .main-nav{display:none;}
  .header-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero-inner{grid-template-columns:1fr;padding:64px 0 60px;}
  .hero-card{max-width:560px;}
  .entry-list{grid-template-columns:1fr;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .metric-item:nth-child(2){border-right:none;}
  .metric-item:nth-child(1),.metric-item:nth-child(2){border-bottom:1px solid var(--border-soft);}
  .cta-band{grid-template-columns:1fr;padding:40px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media screen and (max-width:767px){
  body{padding-bottom:calc(64px + env(safe-area-inset-bottom,0px));}
  .mobile-tab{display:grid;}
  .site-footer{padding-bottom:96px;}
  .section{padding:48px 0;}
  .section--tight{padding:40px 0;}
  .header-inner{height:66px;}
  .brand-mark{width:38px;height:38px;font-size:16px;}
  .brand-text strong{font-size:15.5px;}
  .brand-text em{font-size:11px;}
  .cat-hero h1{font-size:clamp(26px,7vw,34px);}
  .cat-hero .lede{font-size:15.5px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 46%;padding:12px 16px;font-size:14.5px;}
  .entry{grid-template-columns:1fr;gap:16px;padding:16px;}
  .entry-thumb{aspect-ratio:16/9;}
  .cta-band{padding:32px 22px;border-radius:16px;}
  .cta-band .btn{flex:1 1 100%;}
  .filter-bar{padding:14px;gap:8px;}
  .chip{padding:7px 13px;font-size:13px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .faq-q{font-size:15.5px;padding:16px 18px;}
  .faq-a p{padding:0 18px 18px;font-size:14.5px;}
}
@media screen and (max-width:520px){
  .container{padding:0 16px;}
  .metric-item{padding:22px 12px;}
  .hero-points{gap:10px 16px;font-size:13px;}
  .pager a,.pager span{min-width:38px;height:38px;padding:0 11px;font-size:13px;}
  .tl-card{padding:18px;}
}

/* roulang page: category2 */
:root{
  --primary:#2F6BFF;
  --primary-dark:#1E4FD8;
  --primary-light:#EAF1FF;
  --accent:#12B8A6;
  --accent-light:#E4F8F5;
  --warm:#FF7A45;
  --bg:#F7FAFF;
  --surface:#FFFFFF;
  --surface-2:#EEF4FF;
  --text:#0F1B2D;
  --muted:#5B6B82;
  --border:#DDE7F5;
  --border-soft:#E4ECF9;
  --success:#16A34A;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:22px;
  --shadow:0 12px 30px rgba(15,27,45,.08);
  --shadow-hover:0 20px 42px rgba(15,27,45,.14);
  --container:1200px;
  --gap:24px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary-dark);text-decoration:none;transition:color .2s ease,background-color .2s ease;}
a:hover{color:var(--primary);}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.3;font-weight:700;color:var(--text);letter-spacing:.2px;}
h1{font-size:clamp(34px,5vw,54px);}
h2{font-size:clamp(24px,3.2vw,34px);}
h3{font-size:clamp(18px,2vw,22px);}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
.section{padding:80px 0;}
.section.tight{padding:56px 0;}
.section-head{max-width:800px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head p{color:var(--muted);margin-bottom:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.5px;
  color:var(--primary-dark);background:var(--primary-light);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow i{font-size:12px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:74px;
}
.brand{display:inline-flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(135deg,#2F6BFF,#12B8A6);
  color:#fff;font-size:18px;box-shadow:0 8px 18px rgba(47,107,255,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:17px;font-weight:700;color:var(--text);letter-spacing:.4px;}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.3px;}
.main-nav{display:flex;align-items:center;gap:6px;}
.main-nav a{
  display:inline-block;padding:9px 15px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--muted);
  transition:all .2s ease;
}
.main-nav a:hover{color:var(--primary-dark);background:var(--primary-light);}
.main-nav a.active{color:var(--primary-dark);background:var(--primary-light);font-weight:600;}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--border);background:#fff;color:var(--text);
  font-size:17px;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary);}
.nav-drawer{display:none;border-top:1px solid var(--border);background:#fff;}
.nav-drawer.open{display:block;}
.nav-drawer a{
  display:block;padding:14px 20px;border-bottom:1px solid var(--border-soft);
  color:var(--text);font-weight:500;
}
.nav-drawer a:last-child{border-bottom:none;}
.nav-drawer a.active{color:var(--primary-dark);background:var(--primary-light);font-weight:600;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn i{font-size:14px;transition:transform .2s ease;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 10px 22px rgba(47,107,255,.28);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;box-shadow:0 14px 28px rgba(47,107,255,.36);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--primary-dark);border-color:var(--border);}
.btn-ghost:hover{background:var(--primary-light);border-color:var(--primary);color:var(--primary-dark);transform:translateY(-2px);}
.btn-text{background:transparent;color:var(--primary-dark);padding:8px 4px;}
.btn-text:hover{color:var(--primary);}
.btn-text:hover i{transform:translateX(4px);}
.btn-block{width:100%;}

/* ============ Hero ============ */
.page-hero{
  position:relative;
  padding:76px 0 68px;
  background-image:linear-gradient(115deg,rgba(247,250,255,.96) 0%,rgba(247,250,255,.86) 48%,rgba(234,241,255,.9) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--border);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(18,184,166,.14),rgba(18,184,166,0) 70%);
  border-radius:50%;pointer-events:none;
}
.hero-grid{
  display:grid;grid-template-columns:1.05fr .95fr;
  gap:52px;align-items:center;position:relative;z-index:2;
}
.hero-lead{max-width:620px;font-size:17px;color:var(--muted);margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.trust-row{display:flex;flex-wrap:wrap;gap:12px;}
.trust-item{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;color:var(--text);
  background:#fff;border:1px solid var(--border);
  padding:8px 14px;border-radius:999px;box-shadow:0 4px 12px rgba(15,27,45,.05);
}
.trust-item i{color:var(--accent);font-size:13px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;border-radius:var(--radius-lg);
  box-shadow:0 24px 50px rgba(15,27,45,.16);
  aspect-ratio:4/3;object-fit:cover;
  border:1px solid rgba(255,255,255,.8);
}
.hero-badge{
  position:absolute;left:-14px;bottom:22px;
  background:#fff;border-radius:14px;padding:12px 18px;
  box-shadow:0 16px 34px rgba(15,27,45,.16);
  display:flex;align-items:center;gap:10px;
}
.hero-badge i{color:var(--warm);font-size:18px;}
.hero-badge span{font-size:13px;color:var(--muted);line-height:1.4;}
.hero-badge strong{display:block;color:var(--text);font-size:15px;}

/* ============ 快速入口 ============ */
.entry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.entry-card{
  background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--radius);
  padding:26px 22px;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(47,107,255,.28);}
.entry-icon{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:var(--primary-light);color:var(--primary-dark);font-size:18px;margin-bottom:16px;
}
.entry-card h3{font-size:18px;margin-bottom:8px;}
.entry-card p{font-size:14px;color:var(--muted);margin-bottom:12px;}
.entry-card a{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.entry-card a i{font-size:12px;transition:transform .2s ease;}
.entry-card a:hover i{transform:translateX(4px);}

/* ============ 步骤流程 ============ */
.steps-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative;}
.step-card{
  position:relative;background:#fff;border:1px solid var(--border-soft);
  border-radius:var(--radius);padding:28px 22px 24px;box-shadow:var(--shadow);
}
.step-num{
  position:absolute;top:-16px;left:22px;
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:var(--primary);color:#fff;font-weight:700;font-size:15px;
  box-shadow:0 10px 20px rgba(47,107,255,.3);
}
.step-card h3{font-size:18px;margin-top:14px;margin-bottom:8px;}
.step-card p{font-size:14px;color:var(--muted);margin-bottom:0;}
.step-card .step-tag{
  display:inline-block;margin-top:14px;font-size:12px;font-weight:600;
  color:var(--accent);background:var(--accent-light);padding:4px 10px;border-radius:8px;
}

/* ============ 对比表 ============ */
.compare-section{background:var(--surface-2);}
.table-scroll{overflow-x:auto;border-radius:var(--radius);box-shadow:var(--shadow);background:#fff;}
table.compare{width:100%;border-collapse:collapse;min-width:720px;}
table.compare th,table.compare td{padding:18px 20px;text-align:left;font-size:15px;border-bottom:1px solid var(--border-soft);}
table.compare thead th{
  background:#fff;font-weight:700;font-size:15px;color:var(--text);
  border-bottom:2px solid var(--border);
}
table.compare thead th.hl{color:var(--primary-dark);}
table.compare tbody tr:nth-child(odd){background:#FBFDFF;}
table.compare tbody tr:nth-child(even){background:#F4F8FF;}
table.compare tbody td:first-child{font-weight:600;color:var(--text);}
table.compare tbody td{color:var(--muted);}
table.compare tbody tr:hover td{background:var(--primary-light);color:var(--text);}
td .pill{display:inline-block;font-size:12px;font-weight:600;padding:3px 10px;border-radius:8px;}
td .pill.blue{background:var(--primary-light);color:var(--primary-dark);}
td .pill.green{background:var(--accent-light);color:#0E8F81;}

/* ============ 图文说明 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;}
.split.reverse .split-media{order:2;}
.split-media img{
  width:100%;border-radius:var(--radius-lg);object-fit:cover;aspect-ratio:16/11;
  box-shadow:0 22px 44px rgba(15,27,45,.14);border:1px solid var(--border-soft);
}
.split-body p{color:var(--muted);max-width:760px;}
.split-body h2{margin-bottom:18px;}
.note-list{margin-top:8px;}
.note-list li{
  position:relative;padding-left:26px;margin-bottom:12px;
  font-size:15px;color:var(--muted);
}
.note-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:2px;font-size:12px;color:var(--accent);
}

/* ============ 优势卡 2x2 ============ */
.adv-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.adv-card{
  display:flex;gap:18px;background:#fff;border:1px solid var(--border-soft);
  border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.adv-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(47,107,255,.28);}
.adv-icon{
  flex-shrink:0;width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:var(--accent-light);color:#0E8F81;font-size:19px;
}
.adv-card h3{font-size:18px;margin-bottom:8px;}
.adv-card p{font-size:14px;color:var(--muted);margin-bottom:0;}

/* ============ 资讯提示条 ============ */
.news-strip{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  background:#fff;border:1px solid var(--border-soft);border-left:4px solid var(--accent);
  border-radius:var(--radius);padding:22px 26px;box-shadow:var(--shadow);
}
.news-strip .strip-text{display:flex;align-items:center;gap:14px;}
.news-strip i.strip-ico{font-size:20px;color:var(--accent);}
.news-strip strong{display:block;font-size:16px;}
.news-strip span{font-size:14px;color:var(--muted);}

/* ============ FAQ ============ */
.faq-list{max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--border-soft);border-radius:var(--radius);
  margin-bottom:14px;overflow:hidden;box-shadow:0 6px 18px rgba(15,27,45,.05);
  transition:border-color .2s ease;
}
.faq-item:hover{border-color:rgba(47,107,255,.3);}
.faq-item.open{border-color:var(--primary);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:none;text-align:left;cursor:pointer;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--text);
}
.faq-q:hover{color:var(--primary-dark);}
.faq-q i{transition:transform .25s ease;color:var(--primary);font-size:14px;flex-shrink:0;}
.faq-item.open .faq-q i{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-item.open .faq-a{max-height:340px;}
.faq-a p{padding:0 24px 20px;margin:0;font-size:15px;color:var(--muted);}

/* ============ CTA / 表单 ============ */
.cta-section{padding:0 0 80px;}
.cta-box{
  background:linear-gradient(120deg,#1E4FD8 0%,#2F6BFF 58%,#12B8A6 140%);
  border-radius:26px;padding:56px;color:#fff;position:relative;overflow:hidden;
  box-shadow:0 28px 60px rgba(30,79,216,.28);
}
.cta-box::after{
  content:"";position:absolute;right:-90px;bottom:-120px;width:340px;height:340px;
  background:radial-gradient(circle,rgba(255,255,255,.18),rgba(255,255,255,0) 70%);
  border-radius:50%;
}
.cta-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;position:relative;z-index:2;}
.cta-box h2{color:#fff;margin-bottom:14px;}
.cta-box p{color:rgba(255,255,255,.86);font-size:15px;}
.cta-points li{
  display:flex;align-items:center;gap:10px;
  font-size:15px;color:rgba(255,255,255,.92);margin-bottom:12px;
}
.cta-points i{color:#BDF5EC;}
.consult-form{
  background:rgba(255,255,255,.98);border-radius:20px;padding:28px;
  box-shadow:0 20px 40px rgba(8,25,60,.22);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:7px;}
.field label .req{color:#E11D48;margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;min-height:50px;padding:12px 14px;border-radius:var(--radius-sm);
  border:1px solid var(--border);background:#FBFDFF;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field textarea{min-height:104px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);background:#fff;
  box-shadow:0 0 0 4px rgba(47,107,255,.12);
}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--muted);margin-bottom:18px;}
.check-line input{width:18px;height:18px;min-height:auto;margin-top:2px;flex-shrink:0;accent-color:var(--primary);}
.form-tip{font-size:13px;margin-top:12px;display:none;}
.form-tip.ok{display:block;color:var(--success);font-weight:600;}
.form-tip.err{display:block;color:#E11D48;font-weight:600;}
.cta-contact{display:flex;flex-wrap:wrap;gap:22px;margin-top:26px;font-size:14px;color:rgba(255,255,255,.9);}
.cta-contact span{display:inline-flex;align-items:center;gap:8px;}

/* ============ 页脚 ============ */
.site-footer{background:#0F1B2D;color:#C4D0E2;padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr .9fr;gap:36px;}
.site-footer .brand-text strong{color:#fff;}
.site-footer .brand-text em{color:#8CA0BC;}
.site-footer .footer-brand p{font-size:14px;color:#93A5BE;margin-top:18px;max-width:340px;line-height:1.8;}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;}
.footer-col a{display:block;color:#A9B9D1;font-size:14px;padding:6px 0;transition:color .2s ease,transform .2s ease;}
.footer-col a:hover{color:#fff;transform:translateX(3px);}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:#A9B9D1;margin-bottom:12px;}
.footer-contact i{color:#4E8BFF;margin-top:4px;}
.qr-box{
  width:120px;height:120px;border-radius:14px;background:rgba(255,255,255,.06);
  border:1px dashed rgba(255,255,255,.24);display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:8px;color:#8CA0BC;font-size:12px;
}
.qr-box i{font-size:30px;color:#4E8BFF;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);margin-top:40px;padding-top:22px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:#7F92AD;
}

/* ============ 移动端底部 Tab ============ */
.mobile-tabbar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:300;
  background:#fff;border-top:1px solid var(--border);
  box-shadow:0 -8px 24px rgba(15,27,45,.08);
  padding-bottom:env(safe-area-inset-bottom);
}
.mobile-tabbar a{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:4px;padding:9px 2px 8px;font-size:11px;color:var(--muted);font-weight:500;
}
.mobile-tabbar a i{font-size:17px;}
.mobile-tabbar a.active{color:var(--primary-dark);font-weight:700;}
.mobile-tabbar a:hover{color:var(--primary);}

/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  .section{padding:72px 0;}
  .cta-box{padding:46px;}
}
@media screen and (max-width:991px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-media{max-width:560px;}
  .entry-grid{grid-template-columns:repeat(2,1fr);}
  .steps-wrap{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:32px;}
  .split.reverse .split-media{order:0;}
  .cta-grid{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media screen and (max-width:767px){
  body{padding-bottom:74px;}
  .section{padding:52px 0;}
  .section.tight{padding:42px 0;}
  .mobile-tabbar{display:flex;}
  .brand-text em{display:none;}
  .brand-mark{width:38px;height:38px;font-size:16px;}
  .brand-text strong{font-size:15.5px;}
  .entry-grid{grid-template-columns:1fr;}
  .steps-wrap{grid-template-columns:1fr;}
  .adv-grid{grid-template-columns:1fr;}
  .split-media img{aspect-ratio:16/10;}
  .hero-badge{left:10px;bottom:12px;padding:10px 14px;}
  .cta-box{padding:32px 20px;border-radius:20px;}
  .consult-form{padding:22px 18px;}
  .form-row{grid-template-columns:1fr;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .faq-q{font-size:16px;padding:18px 18px;}
  .faq-a p{padding:0 18px 18px;}
  .site-footer{padding-bottom:100px;}
  .footer-grid{grid-template-columns:1fr;}
  .news-strip{flex-direction:column;align-items:flex-start;}
  .news-strip .btn{width:auto;}
}
@media screen and (max-width:519px){
  .container{padding:0 16px;}
  .trust-row{gap:8px;}
  .trust-item{font-size:12px;padding:7px 11px;}
  .cta-contact{gap:14px;font-size:13px;}
}