/* roulang page: index */
:root{
  --brand:#1557A8;
  --brand-deep:#0E3F80;
  --brand-light:#2C74CE;
  --brand-050:#EAF2FC;
  --accent:#E8912C;
  --accent-dark:#D07F1E;
  --teal:#1F9E8F;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --title:#18222E;
  --text:#43536A;
  --muted:#7C8CA1;
  --line:#E4EBF4;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 2px 10px rgba(21,87,168,.06);
  --shadow-2:0 12px 30px rgba(21,87,168,.14);
  --bs-primary:#1557A8;
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",Inter,system-ui,sans-serif;
  --bs-border-radius:10px;
  --bs-body-color:#43536A;
  --bs-link-color:#2C74CE;
  --bs-link-hover-color:#1557A8;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",Inter,system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--title);font-weight:700;letter-spacing:-0.01em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
a{color:var(--brand-light);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand)}
img{max-width:100%;display:block}
button{font-family:inherit}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto}
:focus-visible{outline:2px solid rgba(21,87,168,.45);outline-offset:2px;border-radius:6px}

/* ============ 公告细条 ============ */
.topline{
  background:var(--brand-deep);
  color:#DCE9F8;
  font-size:14px;
  padding:9px 0;
  position:relative;
  z-index:60;
}
.topline .container{display:flex;align-items:center;gap:10px;justify-content:center;position:relative}
.topline i{color:#8FB9E8}
.topline-close{
  position:absolute;right:24px;top:50%;transform:translateY(-50%);
  background:transparent;border:0;color:#9FC0E4;cursor:pointer;font-size:14px;
  width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  transition:background .2s ease,color .2s ease;
}
.topline-close:hover{background:rgba(255,255,255,.14);color:#fff}
.topline.is-hidden{display:none}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(21,87,168,.09)}
.header-inner{display:flex;align-items:center;gap:28px;height:74px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:11px;
  background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:700;letter-spacing:-0.02em;
  box-shadow:0 6px 14px rgba(21,87,168,.24);
}
.brand-text{display:flex;flex-direction:column;line-height:1.16}
.brand-cn{font-size:17px;font-weight:700;color:var(--brand-deep);letter-spacing:-0.01em}
.brand-en{font-size:11px;letter-spacing:.16em;color:var(--muted);text-transform:uppercase;font-family:Inter,sans-serif}
.main-nav{display:flex;align-items:center;gap:26px;margin-left:8px}
.mnav-link{
  position:relative;font-size:15px;color:var(--text);padding:26px 0;
  font-weight:500;white-space:nowrap;
}
.mnav-link:hover{color:var(--brand)}
.mnav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:16px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:center;
  transition:transform .22s ease;
}
.mnav-link:hover::after{transform:scaleX(1)}
.mnav-link.active{color:var(--brand-deep);font-weight:700}
.mnav-link.active::after{transform:scaleX(1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.icon-btn{
  width:42px;height:42px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:#fff;color:var(--brand);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.icon-btn:hover{background:var(--brand-050);border-color:#C9DDF5;transform:translateY(-1px)}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;border:0;
  box-shadow:0 6px 16px rgba(21,87,168,.20);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-main:hover{background:#12499?;background:#114895;color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px rgba(21,87,168,.26)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  background:transparent;color:var(--brand);font-size:15px;font-weight:600;
  border:1px solid #BBD4F0;
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-ghost:hover{background:var(--brand-050);border-color:var(--brand-light);transform:translateY(-1px)}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 20px;border-radius:var(--radius-btn);
  background:var(--accent);color:#fff;font-size:15px;font-weight:600;border:0;
  transition:background .2s ease,transform .2s ease;
}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:#fff;color:var(--brand-deep);
  align-items:center;justify-content:center;cursor:pointer;
}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:10px 24px 20px;
}
.mobile-drawer.open{display:block}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 2px;border-bottom:1px dashed var(--line);
  color:var(--text);font-size:15px;
}
.mobile-drawer a:last-child{border-bottom:0}
.mobile-drawer a.active{color:var(--brand);font-weight:700}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,var(--brand-050) 0%,rgba(246,248,252,0) 88%);
  padding:64px 0 76px;
}
.hero-grid{display:grid;grid-template-columns:55fr 45fr;gap:48px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid #C9DDF5;color:var(--brand);
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:999px;
  box-shadow:var(--shadow-1);
}
.hero h1{
  font-size:44px;line-height:1.25;color:var(--brand-deep);
  margin:20px 0 16px;letter-spacing:-0.01em;
}
.hero-sub{font-size:17px;color:var(--text);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:28px 0 26px}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;padding-top:22px;border-top:1px solid #DCE7F6}
.stat-item{display:flex;align-items:flex-start;gap:10px}
.stat-item i{color:var(--brand-light);font-size:16px;margin-top:5px}
.stat-strong{display:block;font-size:15px;font-weight:700;color:var(--title)}
.stat-weak{display:block;font-size:13px;color:var(--muted)}
.hero-visual{position:relative;padding:0 0 26px 26px}
.hero-visual::before{
  content:"";position:absolute;right:0;bottom:0;width:170px;height:170px;
  border-radius:20px;background:#D7E7FA;z-index:0;
}
.hero-visual::after{
  content:"";position:absolute;left:0;top:26px;right:0;bottom:26px;
  background-image:linear-gradient(rgba(21,87,168,.07) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(21,87,168,.07) 1px,transparent 1px);
  background-size:26px 26px;border-radius:18px;z-index:0;
}
.hero-visual img{
  position:relative;z-index:1;width:100%;border-radius:16px;
  box-shadow:0 18px 40px rgba(21,87,168,.16);
  aspect-ratio:4/3;object-fit:cover;
}
.float-card{
  position:absolute;z-index:2;left:-6px;bottom:6px;
  background:#fff;border-radius:var(--radius-card);
  padding:14px 18px;box-shadow:var(--shadow-2);min-width:200px;
  border-left:3px solid var(--accent);
}
.float-card .fc-label{font-size:12px;color:var(--muted);letter-spacing:.04em}
.float-card .fc-value{font-size:16px;font-weight:700;color:var(--brand-deep);margin-top:2px}
.float-card .fc-note{font-size:13px;color:var(--teal);margin-top:4px}

/* ============ 通用板块 ============ */
.section{padding:80px 0}
.section.alt{background:#fff}
.section-head{margin-bottom:38px;max-width:720px}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-050);border-radius:999px;padding:5px 13px;margin-bottom:14px;
}
.section-title{font-size:32px;color:var(--brand-deep)}
.section-desc{margin-top:12px;font-size:15px;color:var(--muted)}

/* ============ 专区卡片网格 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.k-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.k-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px);border-color:#D2E3F7}
.card-media{overflow:hidden;aspect-ratio:4/3;background:var(--brand-050)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.k-card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:20px;line-height:1.35;color:var(--title);transition:color .2s ease}
.k-card:hover .card-title{color:var(--brand)}
.card-text{font-size:14.5px;color:var(--text);display:-webkit-box;-webkit-line-clamp:1;line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.chip-row{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  font-size:12.5px;border-radius:999px;background:var(--brand-050);color:var(--brand);
  border:1px solid #D5E6F9;
}
.chip.teal{background:#E6F5F3;color:var(--teal);border-color:#CBE9E5}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.price-line{font-size:13.5px;color:var(--muted)}
.price-line strong{display:block;color:var(--brand-deep);font-size:15px}

/* ============ 评价轮播 ============ */
.reviews-wrap{position:relative;padding:0 56px}
.reviews-track{
  display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;
  scroll-behavior:smooth;padding:6px 2px 18px;
  scrollbar-width:none;
}
.reviews-track::-webkit-scrollbar{display:none}
.review-card{
  flex:0 0 calc((100% - 48px)/3);scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:22px;
  transition:box-shadow .25s ease,transform .25s ease;
}
.review-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px)}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:12px}
.avatar{
  width:44px;height:44px;border-radius:50%;flex-shrink:0;
  background:var(--brand-050);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:17px;
}
.review-name{font-size:15px;font-weight:700;color:var(--title)}
.review-role{font-size:13px;color:var(--muted)}
.stars{display:flex;gap:3px;color:var(--accent);font-size:13px;margin-bottom:8px}
.review-text{font-size:14.5px;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.car-arrow{
  position:absolute;top:50%;transform:translateY(-50%);
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);
  background:#fff;color:var(--brand);cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-1);transition:background .2s ease,color .2s ease,box-shadow .2s ease;
  z-index:3;
}
.car-arrow:hover{background:var(--brand);color:#fff;box-shadow:var(--shadow-2)}
.car-arrow.prev{left:0}
.car-arrow.next{right:0}
.car-dots{display:flex;justify-content:center;gap:8px;margin-top:6px}
.car-dot{
  width:8px;height:8px;border-radius:50%;border:0;padding:0;cursor:pointer;
  background:#C8D8EC;transition:width .25s ease,background .25s ease;
}
.car-dot.active{width:22px;border-radius:999px;background:var(--brand)}

/* ============ 保障条 ============ */
.guarantee{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:34px 0}
.guarantee-list{display:grid;grid-template-columns:repeat(4,1fr)}
.g-item{
  display:flex;align-items:center;gap:14px;padding:6px 26px;
  border-left:1px solid var(--line);
}
.g-item:first-child{border-left:0;padding-left:0}
.g-item i{font-size:20px;color:var(--brand);width:26px;text-align:center}
.g-item .g-title{font-size:15px;font-weight:700;color:var(--title);display:block}
.g-item .g-desc{font-size:13px;color:var(--muted);display:block}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;display:flex;flex-direction:column;
  transition:box-shadow .25s ease,transform .25s ease;
}
.news-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px)}
.news-media{aspect-ratio:16/10;overflow:hidden;background:var(--brand-050)}
.news-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.news-card:hover .news-media img{transform:scale(1.03)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge-teal{
  display:inline-flex;align-items:center;height:24px;padding:0 11px;border-radius:999px;
  background:#E6F5F3;color:var(--teal);font-size:12.5px;font-weight:600;width:fit-content;
}
.news-title{font-size:18px;line-height:1.4;color:var(--title);display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover .news-title{color:var(--brand)}
.news-text{
  font-size:14.5px;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:3;line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);
}
.news-meta .go{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.news-empty{
  text-align:center;padding:56px 20px;background:#fff;border:1px dashed var(--line);
  border-radius:var(--radius-card);
}
.news-empty i{font-size:30px;color:#B9CCE3;display:block;margin-bottom:14px}
.news-empty p{font-size:15px;color:var(--muted)}
.news-empty .btn-ghost{margin-top:18px}

/* ============ CTA 横幅 ============ */
.cta-banner{
  border-radius:18px;overflow:hidden;position:relative;
  background-image:linear-gradient(115deg,rgba(14,63,128,.94),rgba(21,87,168,.86)),url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
  padding:52px 48px;color:#fff;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-banner h2{color:#fff;font-size:28px;margin-bottom:12px}
.cta-banner p{color:#CFE1F6;font-size:15.5px;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn-white{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);
  background:#fff;color:var(--brand-deep);font-weight:700;font-size:15px;border:0;
  transition:transform .2s ease,box-shadow .2s ease;
}
.btn-white:hover{color:var(--brand-deep);transform:translateY(-1px);box-shadow:0 12px 26px rgba(0,0,0,.18)}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);
  background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55);
  font-weight:600;font-size:15px;transition:background .2s ease,transform .2s ease;
}
.btn-line:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px)}

/* ============ 页脚 ============ */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 0;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--muted);max-width:330px}
.footer-title{font-size:15px;font-weight:700;color:var(--title);margin-bottom:16px}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:14px;color:var(--text)}
.footer-links a:hover{color:var(--brand)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--text);margin-bottom:12px}
.footer-contact i{color:var(--brand-light);margin-top:5px;font-size:13px}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:var(--muted);
}
.footer-bottom a{color:var(--muted)}
.footer-bottom a:hover{color:var(--brand)}

/* ============ 移动端底部 Tab ============ */
.bottom-tabs{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(255,255,255,.98);border-top:1px solid var(--line);
  padding:6px 0 calc(6px + env(safe-area-inset-bottom));
  box-shadow:0 -6px 18px rgba(21,87,168,.08);
}
.tab-item{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;
  font-size:10.5px;color:var(--muted);padding:4px 2px;
}
.tab-item i{font-size:18px;line-height:1}
.tab-item.active{color:var(--brand);font-weight:700}
.tab-item.active i{color:var(--brand)}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero h1{font-size:38px}
  .section-title{font-size:29px}
}
@media (max-width:991px){
  .container{padding-left:20px;padding-right:20px}
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .header-inner{height:68px;gap:14px}
  .hero{padding:48px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero h1{font-size:32px}
  .hero-visual{padding:0 0 22px 22px;max-width:640px}
  .card-grid,.news-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .guarantee-list{grid-template-columns:repeat(2,1fr);gap:20px 0}
  .g-item:nth-child(3){border-left:0;padding-left:0}
  .review-card{flex:0 0 calc((100% - 24px)/2)}
  .reviews-wrap{padding:0 48px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section{padding:60px 0}
}
@media (max-width:767px){
  body{padding-bottom:calc(62px + env(safe-area-inset-bottom))}
  .bottom-tabs{display:flex}
  .topline{font-size:13px;padding:8px 0}
  .topline span{max-width:calc(100% - 60px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .topline-close{right:16px}
  .btn-main,.btn-ghost,.btn-white,.btn-line{height:46px;padding:0 20px;font-size:14.5px}
  .header-actions .btn-main{display:none}
  .hero h1{font-size:28px}
  .hero-sub{font-size:15.5px}
  .hero-actions{gap:12px}
  .hero-actions .btn-main,.hero-actions .btn-ghost{flex:1 1 46%}
  .hero-stats{gap:18px}
  .section{padding:52px 0}
  .section-title{font-size:24px}
  .reviews-wrap{padding:0}
  .car-arrow{display:none}
  .review-card{flex:0 0 100%}
  .cta-banner{padding:36px 24px;border-radius:14px}
  .cta-banner h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn-white,.cta-actions .btn-line{flex:1 1 100%}
  .footer-col{border-bottom:1px solid var(--line)}
  .footer-col .footer-toggle{display:flex;width:100%;align-items:center;justify-content:space-between;background:none;border:0;padding:16px 0;cursor:pointer}
  .footer-col .footer-title{margin:0}
  .footer-col .footer-body{max-height:0;overflow:hidden;transition:max-height .28s ease}
  .footer-col.open .footer-body{max-height:420px;padding-bottom:16px}
  .footer-col .footer-toggle i{color:var(--muted);transition:transform .28s ease}
  .footer-col.open .footer-toggle i{transform:rotate(180deg)}
  .site-footer{padding-top:36px;margin-top:56px}
  .footer-grid{grid-template-columns:1fr;gap:0;padding-bottom:20px}
  .footer-bottom{justify-content:center;text-align:center}
}
@media (max-width:575px){
  .card-grid,.news-grid{grid-template-columns:1fr;gap:18px}
  .guarantee-list{grid-template-columns:1fr;gap:16px}
  .g-item{border-left:0;padding:4px 0}
  .brand-en{display:none}
  .hero-badge{font-size:12px}
  .cta-actions{gap:10px}
}

/* roulang page: category1 */
:root{
  --brand:#1557A8;
  --brand-dark:#0E3F80;
  --brand-light:#2C74CE;
  --brand-050:#EAF2FC;
  --accent:#E8912C;
  --teal:#1F9E8F;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --text:#18222E;
  --body:#43536A;
  --muted:#7C8CA1;
  --line:#E4EBF4;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-sm:0 2px 10px rgba(21,87,168,.06);
  --shadow-lg:0 12px 30px rgba(21,87,168,.14);
  --bs-primary:#1557A8;
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --bs-border-radius:10px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--body);
  background:var(--bg);
  padding-bottom:calc(62px + env(safe-area-inset-bottom));
}
h1,h2,h3,h4,h5{
  color:var(--text);
  font-weight:700;
  line-height:1.25;
  letter-spacing:-0.01em;
  margin:0;
}
p{margin:0}
a{color:var(--brand-light);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
img{max-width:100%;height:auto;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid rgba(21,87,168,.45);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
@media (max-width:575.98px){.container{padding:0 16px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(21,87,168,.10)}
.header-inner{display:flex;align-items:center;gap:28px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(140deg,var(--brand-light),var(--brand-dark));
  color:#fff;font-weight:700;font-size:19px;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-cn{font-size:17px;font-weight:700;color:var(--brand-dark);letter-spacing:.01em}
.brand-en{font-size:11px;color:var(--muted);letter-spacing:.14em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.mnav-link{
  position:relative;display:block;
  padding:10px 14px;font-size:15px;color:var(--body);
  border-radius:8px;font-weight:500;
}
.mnav-link:hover{color:var(--brand);background:var(--brand-050)}
.mnav-link.active{color:var(--brand);font-weight:700}
.mnav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;
  height:2px;border-radius:2px;background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--brand);display:flex;align-items:center;justify-content:center;
  transition:all .2s ease;
}
.icon-btn:hover{border-color:var(--brand);background:var(--brand-050)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--brand-dark);font-size:17px;
  align-items:center;justify-content:center;
}
.mobile-nav{display:none;border-top:1px solid var(--line);background:#fff;padding:10px 0 16px}
.mobile-nav.is-open{display:block}
.mobile-nav a{
  display:block;padding:12px 24px;color:var(--body);font-size:15px;border-radius:8px;
}
.mobile-nav a.active{color:var(--brand);font-weight:700;background:var(--brand-050)}

/* ============ 按钮 ============ */
.btn-k{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease;
  white-space:nowrap;cursor:pointer;
}
.btn-k.primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm)}
.btn-k.primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-lg)}
.btn-k.ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-k.ghost:hover{background:var(--brand-050);color:var(--brand-dark);transform:translateY(-1px)}
.btn-k.accent{background:var(--accent);color:#fff}
.btn-k.accent:hover{background:#cf7d1d;color:#fff;transform:translateY(-1px)}
.btn-k.sm{height:42px;padding:0 18px;font-size:14px}
.btn-k.block{width:100%}

/* ============ 面包屑 ============ */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:14px;color:var(--muted)}
.crumb a{color:var(--brand-light)}
.crumb a:hover{color:var(--brand-dark)}
.crumb .sep{color:#C3CEDC}
.crumb .current{color:var(--muted)}

/* ============ 通用板块 ============ */
.section{padding:80px 0}
.section.tight{padding:56px 0}
.section.alt{background:var(--brand-050)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-050);border:1px solid #D4E4F8;
  padding:5px 14px;border-radius:999px;margin-bottom:16px;
}
.section-head h2{font-size:32px;margin-bottom:14px}
.section-head p{font-size:16px;color:var(--body)}
@media (max-width:767.98px){
  .section{padding:52px 0}
  .section-head h2{font-size:24px}
}

/* ============ Hero ============ */
.hero{
  background:
    linear-gradient(180deg,#F3F8FF 0%,#F6F8FC 100%);
  padding:64px 0 76px;
  position:relative;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-60px;top:-40px;width:420px;height:420px;
  background-image:linear-gradient(rgba(21,87,168,.07) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(21,87,168,.07) 1px,transparent 1px);
  background-size:26px 26px;border-radius:50%;pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:55% 45%;gap:48px;align-items:center;position:relative;z-index:1}
.hero h1{font-size:44px;margin-bottom:18px;color:var(--brand-dark)}
.hero .lead{font-size:17px;color:var(--body);margin-bottom:26px;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:12px 34px}
.metric{display:flex;flex-direction:column}
.metric b{font-size:19px;color:var(--brand-dark);font-family:Inter,"PingFang SC",sans-serif}
.metric span{font-size:13px;color:var(--muted)}
.hero-visual{position:relative}
.hero-visual img{border-radius:var(--radius-card);box-shadow:var(--shadow-lg);width:100%;object-fit:cover;aspect-ratio:4/3}
.float-card{
  position:absolute;left:-26px;bottom:26px;background:#fff;border-radius:var(--radius-card);
  box-shadow:var(--shadow-lg);padding:16px 18px;min-width:216px;border:1px solid var(--line);
}
.float-card .fc-label{font-size:12px;color:var(--muted);margin-bottom:6px}
.float-card .fc-value{font-size:15px;font-weight:700;color:var(--brand-dark);margin-bottom:8px}
.float-card .fc-tags{display:flex;gap:6px;flex-wrap:wrap}
.chip{
  display:inline-flex;align-items:center;gap:5px;
  font-size:12px;padding:3px 10px;border-radius:999px;
  background:var(--brand-050);color:var(--brand);border:1px solid #D4E4F8;
}
.chip.teal{background:#E6F5F2;color:var(--teal);border-color:#C7E9E3}
.chip.accent{background:#FDF1E1;color:#B4701E;border-color:#F6DFC0}
@media (max-width:991.98px){
  .hero{padding:44px 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero h1{font-size:32px}
  .float-card{left:auto;right:12px;bottom:12px}
}
@media (max-width:575.98px){
  .hero h1{font-size:28px}
  .hero .lead{font-size:15px}
  .hero-actions .btn-k{width:100%}
  .float-card{position:static;margin-top:14px;box-shadow:var(--shadow-sm)}
  .hero-metrics{gap:12px 22px}
}

/* ============ 图文交替 ============ */
.zigzag{display:flex;flex-direction:column;gap:56px}
.zig-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.zig-row.reverse .zig-media{order:2}
.zig-media img{border-radius:var(--radius-img);box-shadow:var(--shadow-sm);width:100%;aspect-ratio:16/10;object-fit:cover}
.zig-body h3{font-size:20px;margin-bottom:12px}
.zig-body .zig-index{
  display:inline-block;font-size:13px;font-weight:700;color:var(--brand-light);
  border-left:3px solid var(--brand);padding-left:10px;margin-bottom:14px;
}
.zig-body p{margin-bottom:16px}
.zig-list{display:flex;flex-direction:column;gap:10px;margin-bottom:18px}
.zig-list li{position:relative;padding-left:20px;font-size:15px}
.zig-list li::before{
  content:"";position:absolute;left:0;top:10px;width:7px;height:7px;
  border-radius:2px;background:var(--brand-light);
}
@media (max-width:767.98px){
  .zig-row{grid-template-columns:1fr;gap:22px}
  .zig-row.reverse .zig-media{order:0}
  .zigzag{gap:44px}
}

/* ============ 规格对照卡 ============ */
.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.spec-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-sm);transition:box-shadow .25s ease,transform .25s ease;
}
.spec-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.spec-card h3{font-size:20px;margin-bottom:6px}
.spec-card .spec-sub{font-size:14px;color:var(--muted);margin-bottom:18px}
.spec-list{display:flex;flex-direction:column}
.spec-list li{
  display:flex;justify-content:space-between;gap:16px;
  padding:12px 0;border-bottom:1px dashed var(--line);font-size:15px;
}
.spec-list li:last-child{border-bottom:none}
.spec-list .k{color:var(--muted);flex:0 0 auto}
.spec-list .v{color:var(--text);font-weight:600;text-align:right}
@media (max-width:767.98px){.spec-grid{grid-template-columns:1fr}}
@media (max-width:575.98px){.spec-card{padding:22px}}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.open{border-left-color:var(--brand);box-shadow:var(--shadow-lg)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:none;border:none;text-align:left;
  font-size:17px;font-weight:700;color:var(--text);cursor:pointer;
}
.faq-q .sign{flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--brand-050);
  color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a p{padding:0 22px 20px;font-size:15px;color:var(--body)}
@media (max-width:575.98px){
  .faq-q{font-size:15px;padding:16px}
  .faq-a p{padding:0 16px 16px;font-size:14px}
}

/* ============ 相关分类内链 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.rel-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.rel-body{padding:20px 22px 24px}
.rel-body h3{font-size:18px;margin-bottom:8px;transition:color .2s ease}
.rel-card:hover h3{color:var(--brand)}
.rel-body p{font-size:14.5px;color:var(--body);margin-bottom:14px}
.rel-more{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
@media (max-width:991.98px){.rel-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:575.98px){.rel-grid{grid-template-columns:1fr}}

/* ============ CTA ============ */
.cta-band{
  background:linear-gradient(120deg,var(--brand-dark) 0%,var(--brand) 62%,var(--brand-light) 100%);
  border-radius:18px;padding:52px;color:#fff;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-100px;width:320px;height:320px;border-radius:50%;
  background:rgba(255,255,255,.08);
}
.cta-band h2{color:#fff;font-size:30px;margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.86);font-size:16px;max-width:640px;margin-bottom:28px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1}
.cta-band .btn-k.primary{background:#fff;color:var(--brand-dark)}
.cta-band .btn-k.primary:hover{background:#EAF2FC;color:var(--brand-dark)}
.cta-band .btn-k.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.cta-band .btn-k.ghost:hover{background:rgba(255,255,255,.14);color:#fff}
@media (max-width:767.98px){
  .cta-band{padding:32px 22px;border-radius:14px}
  .cta-band h2{font-size:23px}
  .cta-actions .btn-k{width:100%}
}

/* ============ 页脚 ============ */
.site-footer{background:#0F2544;color:#C7D4E6;padding:60px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:40px}
.footer-title{display:block;font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{background:linear-gradient(140deg,var(--brand-light),var(--brand))}
.footer-brand .brand-cn{color:#fff;font-size:16px}
.footer-brand .brand-en{color:#8FA6C4}
.footer-desc{font-size:14px;line-height:1.8;color:#A9BDD6}
.footer-links li{margin-bottom:10px}
.footer-links a,.footer-contact li{font-size:14px;color:#C7D4E6}
.footer-links a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;margin-bottom:12px;line-height:1.7}
.footer-contact i{color:var(--brand-light);margin-top:5px}
.footer-toggle{
  display:block;width:100%;background:none;border:none;padding:0;text-align:left;
  color:#fff;font-size:15px;font-weight:700;
}
.footer-toggle i{display:none;float:right;font-size:13px;transition:transform .2s ease}
.footer-body{padding-top:0}
.copyright{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;font-size:13px;color:#8FA6C4;
  display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;
}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:26px}
}
@media (max-width:767.98px){
  .site-footer{padding:30px 0 0}
  .footer-grid{grid-template-columns:1fr;gap:0;padding-bottom:14px}
  .footer-col{border-bottom:1px solid rgba(255,255,255,.12);padding:16px 0}
  .footer-toggle i{display:block}
  .footer-col.open .footer-toggle i{transform:rotate(180deg)}
  .footer-body{display:none;padding-top:14px}
  .footer-col.open .footer-body{display:block}
  .footer-title{margin-bottom:0}
  .copyright{flex-direction:column;gap:6px;font-size:12.5px}
}

/* ============ 移动端底部 Tab ============ */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  display:none;background:rgba(255,255,255,.98);
  border-top:1px solid var(--line);
  padding:6px 0 calc(6px + env(safe-area-inset-bottom));
  box-shadow:0 -4px 16px rgba(21,87,168,.08);
}
.tabbar-inner{display:grid;grid-template-columns:repeat(4,1fr);max-width:560px;margin:0 auto}
.tab-item{
  display:flex;flex-direction:column;align-items:center;gap:3px;
  font-size:10px;color:var(--muted);padding:5px 2px;
}
.tab-item i{font-size:17px}
.tab-item.active{color:var(--brand);font-weight:700}
.tab-item.active i{transform:translateY(-1px)}
@media (max-width:767.98px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn-k{display:none}
  .tabbar{display:block}
}

/* roulang page: article */
:root{
  --brand:#1557A8;
  --brand-dark:#0E3F80;
  --brand-light:#2C74CE;
  --brand-050:#EAF2FC;
  --accent:#E8912C;
  --accent-dark:#CF7C1C;
  --teal:#1F9E8F;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --title:#18222E;
  --text:#43536A;
  --muted:#7C8CA1;
  --line:#E4EBF4;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --sh-1:0 2px 10px rgba(21,87,168,.06);
  --sh-2:0 12px 30px rgba(21,87,168,.14);
  --container:1200px;
  --bs-primary:#1557A8;
  --bs-primary-rgb:21,87,168;
  --bs-body-bg:#F6F8FC;
  --bs-body-color:#43536A;
  --bs-border-radius:10px;
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",Inter,system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-light);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{color:var(--title);font-weight:700;letter-spacing:-0.01em;line-height:1.25;margin:0;}
p{margin:0 0 1em;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid rgba(21,87,168,.45);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
@media (max-width:767.98px){.container{padding:0 16px;}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.scrolled{box-shadow:0 6px 22px rgba(21,87,168,.10);}
.header-inner{display:flex;align-items:center;gap:28px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(140deg,var(--brand-light),var(--brand-dark));
  color:#fff;font-weight:800;font-size:19px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(21,87,168,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-cn{font-size:17px;font-weight:800;color:var(--brand-dark);letter-spacing:-0.01em;}
.brand-en{font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px;flex:1 1 auto;}
.mnav-link{
  position:relative;padding:10px 14px;border-radius:9px;
  color:var(--text);font-size:15px;font-weight:500;white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.mnav-link:hover{color:var(--brand);background:var(--brand-050);}
.mnav-link.active{color:var(--brand);font-weight:700;}
.mnav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--brand);display:flex;align-items:center;justify-content:center;
  transition:background .18s ease,border-color .18s ease,transform .18s ease;
}
.icon-btn:hover{background:var(--brand-050);border-color:#c9ddF5;transform:translateY(-1px);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary-g{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(21,87,168,.18);}
.btn-primary-g:hover{background:#124a91;color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(21,87,168,.24);}
.btn-outline-g{background:#fff;color:var(--brand);border-color:#c9ddf5;}
.btn-outline-g:hover{background:var(--brand-050);color:var(--brand-dark);border-color:var(--brand-light);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(232,145,44,.22);}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--brand-dark);
}
.search-panel{
  max-height:0;overflow:hidden;background:#fff;border-top:1px solid transparent;
  transition:max-height .24s ease,border-color .24s ease;
}
.search-panel.open{max-height:96px;border-top-color:var(--line);}
.search-form{display:flex;align-items:center;gap:12px;padding:14px 0;}
.search-form i{color:var(--muted);}
.search-form input{
  flex:1 1 auto;height:46px;border-radius:var(--r-btn);border:1px solid var(--line);
  padding:0 14px;background:#fbfcfe;color:var(--text);
}
.search-form input:focus{border-color:var(--brand-light);box-shadow:0 0 0 3px rgba(21,87,168,.12);outline:none;background:#fff;}
.mobile-drawer{
  max-height:0;overflow:hidden;background:#fff;border-top:0 solid var(--line);
  transition:max-height .26s ease,border-color .26s ease;
}
.mobile-drawer.open{max-height:340px;border-top-width:1px;}
.mobile-drawer .container{display:flex;flex-direction:column;padding-top:8px;padding-bottom:16px;}
.mobile-drawer a{
  padding:13px 4px;border-bottom:1px solid var(--line);color:var(--text);font-weight:500;
}
.mobile-drawer a:last-child{border-bottom:0;}
.mobile-drawer a.active{color:var(--brand);font-weight:700;}

/* ---------- 面包屑 ---------- */
.crumb-wrap{background:var(--brand-050);border-bottom:1px solid #dbe8f8;}
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13.5px;color:var(--muted);padding:12px 0;
}
.crumb a{color:var(--brand-light);font-weight:500;}
.crumb a:hover{color:var(--brand-dark);}
.crumb .sep{color:#a9bcd4;}
.crumb-current{display:inline-block;max-width:360px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted);vertical-align:bottom;}

/* ---------- 文章头 ---------- */
.article-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#fff 0%,var(--brand-050) 100%);
  border-bottom:1px solid var(--line);
  padding:34px 0 40px;
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:linear-gradient(rgba(21,87,168,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(21,87,168,.055) 1px,transparent 1px);
  background-size:34px 34px;
}
.article-hero .container{position:relative;z-index:1;max-width:900px;}
.article-badge-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:16px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:999px;font-size:12.5px;font-weight:600;line-height:1;
}
.badge-brand{background:var(--brand-050);color:var(--brand);border:1px solid #cfe0f5;}
.badge-teal{background:rgba(31,158,143,.10);color:var(--teal);border:1px solid rgba(31,158,143,.22);}
.badge-soft{background:#f2f5fa;color:var(--muted);border:1px solid var(--line);}
.article-title{
  font-size:38px;line-height:1.3;letter-spacing:-0.015em;color:var(--brand-dark);
  margin-bottom:18px;word-break:break-word;
}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px 22px;color:var(--muted);font-size:14px;}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--brand-light);font-size:13.5px;}
.title-rule{height:4px;width:56px;border-radius:2px;background:var(--brand);margin:0 0 22px;}

/* ---------- 正文 ---------- */
.main-wrap{padding:48px 0 8px;}
.layout-narrow{max-width:840px;margin:0 auto;}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:38px 42px;
}
.article-body{font-size:16.5px;line-height:1.85;color:var(--text);word-break:break-word;overflow-wrap:break-word;}
.article-body > p:first-of-type{color:#33445c;font-size:17px;}
.article-body p{margin:0 0 1.15em;}
.article-body h2{
  position:relative;font-size:24px;margin:38px 0 16px;padding-left:15px;
  border-left:4px solid var(--brand);color:var(--brand-dark);
}
.article-body h3{font-size:19px;margin:28px 0 12px;color:var(--title);}
.article-body h4{font-size:17px;margin:22px 0 10px;color:var(--title);}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0;list-style:none;}
.article-body ul li,.article-body ol li{position:relative;padding-left:20px;margin:8px 0;}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.66em;width:7px;height:7px;
  border-radius:2px;background:var(--brand-light);
}
.article-body ol{counter-reset:kb;}
.article-body ol li{counter-increment:kb;}
.article-body ol li::before{
  content:counter(kb);position:absolute;left:0;top:.28em;width:15px;height:15px;
  border-radius:4px;background:var(--brand-050);color:var(--brand);
  font-size:10.5px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--brand-050);
  border-left:4px solid var(--brand-light);border-radius:0 var(--r-img) var(--r-img) 0;
  color:#33445c;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:24px auto;box-shadow:var(--sh-1);}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body a{color:var(--brand-light);border-bottom:1px solid rgba(44,116,206,.28);}
.article-body a:hover{color:var(--brand-dark);border-bottom-color:var(--brand-dark);}
.article-body strong{color:var(--title);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
.article-body code{
  background:#eef3fa;color:var(--brand-dark);padding:2px 6px;border-radius:6px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;
}
.article-body pre{
  background:#0E3F80;color:#eaf2fc;padding:18px 20px;border-radius:var(--r-img);
  overflow-x:auto;margin:24px 0;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:24px 0;
  font-size:15px;border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;
}
.article-body th{background:var(--brand-050);color:var(--brand-dark);font-weight:700;text-align:left;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);}
.article-body tr:last-child td{border-bottom:0;}
.article-body tbody tr:hover td{background:#fafcff;}

.article-empty{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:56px 32px;text-align:center;
}
.article-empty i{font-size:38px;color:#b9c8dc;margin-bottom:16px;}
.article-empty h2{font-size:22px;margin-bottom:10px;}
.article-empty p{color:var(--muted);margin-bottom:22px;}

/* ---------- 标签行 ---------- */
.tag-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag-row .tag-label{font-size:14px;color:var(--muted);margin-right:2px;}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 13px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--text);font-size:13.5px;
  transition:all .18s ease;
}
.tag:hover{border-color:var(--brand-light);color:var(--brand);background:var(--brand-050);transform:translateY(-1px);}

/* ---------- 相关推荐 ---------- */
.section{padding:64px 0;}
.section-head{margin-bottom:28px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  letter-spacing:.1em;text-transform:uppercase;color:var(--brand-light);margin-bottom:10px;
}
.section-head h2{font-size:28px;margin-bottom:8px;}
.section-head p{color:var(--muted);margin:0;font-size:15px;}
.reco-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.k-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.k-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#d3e3f7;}
.k-card-cover{position:relative;aspect-ratio:16/10;overflow:hidden;background:#e9eef6;}
.k-card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.k-card:hover .k-card-cover img{transform:scale(1.04);}
.k-card-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto;}
.k-card-body h3{font-size:17px;margin-bottom:8px;}
.k-card:hover .k-card-body h3{color:var(--brand);}
.k-card-body p{font-size:14.5px;color:var(--muted);margin-bottom:14px;line-height:1.7;}
.k-card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;}
.k-card-foot .arrow{color:var(--brand-light);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.back-band{
  margin-top:26px;display:flex;align-items:center;justify-content:space-between;
  gap:18px;flex-wrap:wrap;background:#fff;border:1px dashed #c9ddf5;
  border-radius:var(--r-card);padding:18px 22px;
}
.back-band p{margin:0;font-size:15px;color:var(--text);}
.back-band .links{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- CTA 横幅 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:18px;
  background-image:linear-gradient(100deg,rgba(14,63,128,.94),rgba(21,87,168,.86)),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  padding:46px 44px;color:#fff;box-shadow:0 16px 36px rgba(14,63,128,.20);
}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:12px;max-width:640px;}
.cta-band p{color:rgba(255,255,255,.86);max-width:660px;margin-bottom:24px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-band .btn-outline-g{background:rgba(255,255,255,.10);color:#fff;border-color:rgba(255,255,255,.5);}
.cta-band .btn-outline-g:hover{background:rgba(255,255,255,.2);color:#fff;border-color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E2C56;color:#c7d6ea;padding:56px 0 24px;margin-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
.footer-title{display:block;color:#fff;font-size:15.5px;font-weight:700;margin-bottom:16px;}
.footer-toggle{background:none;border:0;padding:0;width:100%;display:flex;align-items:center;justify-content:space-between;color:#fff;}
.footer-toggle i{display:none;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{width:36px;height:36px;border-radius:10px;font-size:18px;background:rgba(255,255,255,.14);box-shadow:none;}
.footer-brand .brand-cn{color:#fff;font-size:16px;}
.footer-brand .brand-en{color:rgba(199,214,234,.7);}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(199,214,234,.82);margin:0;max-width:320px;}
.footer-links,.footer-contact{list-style:none;}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:rgba(199,214,234,.85);font-size:14.5px;}
.footer-links a:hover{color:#fff;}
.footer-contact li{display:flex;gap:9px;font-size:14.5px;color:rgba(199,214,234,.85);margin-bottom:11px;align-items:flex-start;}
.footer-contact i{color:#7fb0e6;margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:34px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(199,214,234,.7);
}
.footer-bottom a{color:rgba(199,214,234,.85);}

/* ---------- 底部 Tab ---------- */
.bottom-tabs{display:none;}
@media (max-width:767.98px){
  body{padding-bottom:calc(62px + env(safe-area-inset-bottom));}
  .bottom-pad{height:8px;}
  .bottom-tabs{
    display:flex;position:fixed;left:0;right:0;bottom:0;z-index:1040;
    background:rgba(255,255,255,.98);border-top:1px solid var(--line);
    padding-bottom:env(safe-area-inset-bottom);
    box-shadow:0 -4px 18px rgba(21,87,168,.08);
  }
  .btab{
    flex:1 1 0;height:62px;display:flex;flex-direction:column;align-items:center;justify-content:center;
    gap:4px;color:#93a3b8;font-size:10px;font-weight:500;
  }
  .btab i{font-size:17px;}
  .btab.active{color:var(--brand);font-weight:700;}
  .btab.active i{color:var(--brand);}
}

/* ---------- 响应式 ---------- */
@media (max-width:991.98px){
  .main-nav{display:none;}
  .menu-toggle{display:flex;align-items:center;justify-content:center;}
  .header-inner{height:66px;gap:14px;}
  .article-title{font-size:30px;}
  .article-card{padding:28px 24px;}
  .reco-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{padding:36px 28px;}
  .cta-band h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767.98px){
  .section{padding:44px 0;}
  .main-wrap{padding:32px 0 8px;}
  .article-title{font-size:26px;}
  .article-hero{padding:24px 0 28px;}
  .article-body{font-size:15.5px;}
  .article-body h2{font-size:21px;margin-top:30px;}
  .section-head h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:8px;}
  .footer-col{border-bottom:1px solid rgba(255,255,255,.12);padding:14px 0;}
  .footer-toggle{font-size:15px;}
  .footer-toggle i{display:block;transition:transform .22s ease;color:rgba(199,214,234,.8);}
  .footer-col.open .footer-toggle i{transform:rotate(180deg);}
  .footer-body{max-height:0;overflow:hidden;transition:max-height .26s ease;}
  .footer-col.open .footer-body{max-height:460px;}
  .footer-title{margin-bottom:0;}
  .footer-body{padding-top:14px;}
  .footer-desc{max-width:none;}
  .site-footer{padding:36px 0 20px;margin-top:44px;}
  .crumbs-current{max-width:160px;}
  .crumb-current{max-width:180px;}
  .back-band{flex-direction:column;align-items:flex-start;}
  .search-form .btn{display:none;}
}
@media (max-width:575.98px){
  .reco-grid{grid-template-columns:1fr;}
  .article-card{padding:22px 18px;}
  .cta-band{padding:28px 20px;border-radius:var(--r-card);}
  .header-actions .btn-primary-g{display:none;}
  .crumb{font-size:12.5px;}
}

/* roulang page: category2 */
:root{
  --brand:#1557A8;
  --brand-dark:#0E3F80;
  --brand-light:#2C74CE;
  --brand-050:#EAF2FC;
  --accent:#E8912C;
  --teal:#1F9E8F;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --title:#18222E;
  --text:#43536A;
  --muted:#7C8CA1;
  --line:#E4EBF4;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-sm:0 2px 10px rgba(21,87,168,.06);
  --shadow-md:0 6px 18px rgba(21,87,168,.09);
  --shadow-lg:0 12px 30px rgba(21,87,168,.14);
  --gap:24px;
  --bs-primary:#1557A8;
  --bs-primary-rgb:21,87,168;
  --bs-body-color:#43536A;
  --bs-body-bg:#F6F8FC;
  --bs-border-radius:10px;
  --bs-border-radius-lg:14px;
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-light);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--title);font-weight:700;letter-spacing:-.01em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:575.98px){.container{padding:0 16px}}

/* ============ 通用按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--radius-btn);font-size:16px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .22s ease;white-space:nowrap}
.btn:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(21,87,168,.22)}
.btn-solid{background:var(--brand);color:#fff}
.btn-solid:hover{background:#124a90;color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-050);color:var(--brand-dark);transform:translateY(-1px)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:#d47f1c;color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(232,145,44,.28)}
.btn-sm{height:42px;padding:0 20px;font-size:15px}

/* ============ 顶部导航 ============ */
.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-stuck{box-shadow:var(--shadow-sm)}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:36px;height:36px;border-radius:10px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px;letter-spacing:0}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-cn{font-size:17px;font-weight:700;color:var(--brand-dark);letter-spacing:-.01em}
.brand-en{font-size:11px;color:var(--muted);letter-spacing:.06em;text-transform:uppercase}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:8px}
.mnav-link{position:relative;display:inline-flex;align-items:center;height:72px;padding:0 14px;font-size:15px;font-weight:500;color:var(--text)}
.mnav-link:hover{color:var(--brand)}
.mnav-link.active{color:var(--brand-dark);font-weight:700}
.mnav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--brand);border-radius:2px}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.icon-btn{width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--text);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease}
.icon-btn:hover{color:var(--brand);border-color:var(--brand-light);background:var(--brand-050)}
.icon-btn:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(21,87,168,.18)}
.nav-toggle{display:none}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff;padding:10px 0 16px}
.mobile-drawer.open{display:block}
.mobile-drawer .mnav-link{height:auto;padding:12px 24px;font-size:16px;width:100%;justify-content:flex-start}
.mobile-drawer .mnav-link.active::after{display:none}
.mobile-drawer .mnav-link.active{background:var(--brand-050);color:var(--brand-dark)}
@media (max-width:991.98px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:64px;gap:14px}
  .brand-cn{font-size:16px}
}
@media (max-width:575.98px){
  .header-actions .btn{display:none}
  .brand-en{display:none}
}

/* ============ 面包屑 ============ */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;padding:14px 0;font-size:14px;color:var(--muted)}
.crumb a{color:var(--brand-light);font-weight:500}
.crumb a:hover{color:var(--brand-dark)}
.crumb .sep{color:#B9C6D6}
.crumb .current{color:var(--muted)}

/* ============ 通栏标题带 ============ */
.page-banner{background:var(--brand-050);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.page-banner::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(21,87,168,.05) 1px, transparent 1px),linear-gradient(90deg, rgba(21,87,168,.05) 1px, transparent 1px);background-size:44px 44px;pointer-events:none}
.banner-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;padding:56px 0}
.badge-pill{display:inline-flex;align-items:center;gap:7px;height:26px;padding:0 12px;border-radius:999px;background:#fff;color:var(--teal);font-size:13px;font-weight:600;border:1px solid #CFE6E3}
.banner-grid h1{font-size:44px;margin:16px 0 14px;color:var(--brand-dark)}
.banner-sub{font-size:18px;line-height:1.7;color:var(--text);max-width:560px}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
.banner-metrics{display:flex;flex-wrap:wrap;gap:28px;margin-top:30px}
.metric{display:flex;flex-direction:column;gap:2px}
.metric strong{font-size:19px;color:var(--brand-dark);font-family:Inter,var(--bs-body-font-family)}
.metric span{font-size:13px;color:var(--muted)}
.banner-media{position:relative}
.banner-media img{width:100%;height:330px;object-fit:cover;border-radius:var(--radius-img);box-shadow:var(--shadow-md)}
.banner-tag{position:absolute;left:20px;bottom:-18px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-lg);padding:12px 18px;display:flex;align-items:center;gap:12px}
.banner-tag i{color:var(--accent);font-size:20px}
.banner-tag span{font-size:14px;font-weight:600;color:var(--title)}
@media (max-width:991.98px){
  .banner-grid{grid-template-columns:1fr;gap:28px;padding:40px 0 48px}
  .banner-grid h1{font-size:32px}
  .banner-media img{height:250px}
}
@media (max-width:575.98px){
  .banner-grid h1{font-size:28px}
  .banner-sub{font-size:16px}
  .banner-media img{height:200px}
  .banner-metrics{gap:18px}
}

/* ============ 板块通用 ============ */
.section{padding:80px 0}
.section-alt{background:#fff}
.section-head{max-width:720px;margin-bottom:44px}
.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:700;color:var(--brand);letter-spacing:.04em;text-transform:uppercase}
.section-head h2{font-size:32px;margin:12px 0 14px}
.section-head p{font-size:16px;color:var(--text)}
@media (max-width:767.98px){
  .section{padding:52px 0}
  .section-head h2{font-size:24px}
  .section-head{margin-bottom:30px}
}

/* ============ 6 宫格图文卡 ============ */
.grid-6{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.gcard{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);display:flex;gap:18px;padding:18px;transition:all .25s ease}
.gcard:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px);border-color:#D3E2F5}
.gcard-media{flex:0 0 132px;height:112px;border-radius:var(--radius-img);overflow:hidden}
.gcard-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.gcard:hover .gcard-media img{transform:scale(1.05)}
.gcard-body{display:flex;flex-direction:column;gap:8px;min-width:0}
.gcard-body h3{font-size:20px}
.gcard-body p{font-size:15px;color:var(--text);line-height:1.75}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px}
.chip{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12.5px;font-weight:600;background:var(--brand-050);color:var(--brand);border:1px solid #D6E5F7}
.chip-teal{background:#E7F5F3;color:#177F73;border-color:#CFE9E5}
@media (max-width:991.98px){
  .grid-6{grid-template-columns:1fr}
  .gcard-media{flex:0 0 112px;height:98px}
}
@media (max-width:575.98px){
  .gcard{flex-direction:column;gap:14px}
  .gcard-media{flex:none;width:100%;height:170px}
  .gcard-body h3{font-size:18px}
}

/* ============ 流程时间轴 ============ */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative;margin-top:8px}
.flow-step{position:relative;padding:0 16px;text-align:center}
.flow-step::before{content:"";position:absolute;top:23px;left:0;right:0;height:2px;background:var(--line);z-index:0}
.flow-step:first-child::before{left:50%}
.flow-step:last-child::before{right:50%}
.flow-dot{position:relative;z-index:1;width:48px;height:48px;margin:0 auto 16px;border-radius:50%;background:#fff;border:2px solid var(--brand-light);color:var(--brand);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;font-family:Inter,var(--bs-body-font-family);transition:all .25s ease}
.flow-step:hover .flow-dot{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:var(--shadow-md)}
.flow-step h3{font-size:18px;margin-bottom:8px}
.flow-step p{font-size:14.5px;color:var(--muted);line-height:1.7}
@media (max-width:991.98px){
  .flow{grid-template-columns:repeat(2,1fr);gap:30px 0}
  .flow-step::before{display:none}
}
@media (max-width:575.98px){
  .flow{grid-template-columns:1fr;gap:26px}
  .flow-step{text-align:left;padding-left:68px;padding-right:0}
  .flow-dot{margin:0;position:absolute;left:0;top:0;width:44px;height:44px}
}

/* ============ 票券式档位卡 ============ */
.tickets{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.ticket{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);overflow:hidden;transition:all .25s ease;display:flex;flex-direction:column}
.ticket:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.ticket-head{padding:24px 24px 20px;border-bottom:1px dashed var(--line)}
.ticket-head .tier{font-size:13px;font-weight:700;color:var(--brand-light);letter-spacing:.05em}
.ticket-head h3{font-size:22px;margin:8px 0 6px}
.ticket-head p{font-size:14px;color:var(--muted)}
.ticket-body{padding:20px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.ticket-body li{display:flex;gap:10px;font-size:15px;color:var(--text)}
.ticket-body li i{color:var(--teal);margin-top:6px;font-size:13px}
.ticket-foot{padding:0 24px 24px}
.ticket-foot .btn{width:100%}
.ticket.featured{border-color:#C9DDF6;box-shadow:var(--shadow-md)}
.ticket-flag{position:absolute;top:16px;right:16px;height:24px;display:inline-flex;align-items:center;padding:0 10px;border-radius:999px;background:var(--accent);color:#fff;font-size:12px;font-weight:700}
@media (max-width:991.98px){.tickets{grid-template-columns:1fr}}
@media (min-width:576px) and (max-width:991.98px){.tickets{grid-template-columns:repeat(2,1fr)}.ticket.featured{grid-column:span 2}}

/* ============ 服务保障条 ============ */
.assure{display:grid;grid-template-columns:repeat(3,1fr);background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);overflow:hidden}
.assure-item{display:flex;gap:16px;align-items:flex-start;padding:28px 26px;border-right:1px solid var(--line)}
.assure-item:last-child{border-right:none}
.assure-item i{font-size:22px;color:var(--brand);margin-top:4px}
.assure-item h3{font-size:18px;margin-bottom:6px}
.assure-item p{font-size:14.5px;color:var(--muted)}
@media (max-width:991.98px){
  .assure{grid-template-columns:1fr}
  .assure-item{border-right:none;border-bottom:1px solid var(--line);padding:22px}
  .assure-item:last-child{border-bottom:none}
}

/* ============ 适用场景 ============ */
.scene-row{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scene{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-sm);transition:all .25s ease}
.scene:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.scene .num{font-family:Inter,var(--bs-body-font-family);font-size:14px;font-weight:700;color:var(--brand-light)}
.scene h3{font-size:19px;margin:10px 0 10px}
.scene p{font-size:15px;color:var(--text)}
@media (max-width:991.98px){.scene-row{grid-template-columns:1fr}}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);box-shadow:var(--shadow-sm);overflow:hidden;transition:box-shadow .25s ease}
.faq-item[open]{box-shadow:var(--shadow-md)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;font-size:17px;font-weight:700;color:var(--title);transition:color .2s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary .faq-icon{flex:0 0 22px;font-size:15px;color:var(--brand-light);transition:transform .2s ease}
.faq-item[open] summary .faq-icon{transform:rotate(180deg)}
.faq-item .faq-answer{padding:0 24px 22px;border-left:3px solid transparent;transition:border-color .2s ease}
.faq-item[open] .faq-answer{border-left-color:var(--brand)}
.faq-item .faq-answer p{font-size:15px;color:var(--text);line-height:1.85}
@media (max-width:575.98px){
  .faq-item summary{padding:16px 18px;font-size:16px}
  .faq-item .faq-answer{padding:0 18px 18px}
}

/* ============ CTA 横幅 ============ */
.cta-band{background:var(--brand-dark);border-radius:18px;padding:52px 44px;display:grid;grid-template-columns:1.4fr auto;gap:32px;align-items:center;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;background:rgba(255,255,255,.06)}
.cta-band h2{color:#fff;font-size:30px;margin-bottom:12px}
.cta-band p{color:#C8D8EE;font-size:16px;max-width:620px}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.55)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
@media (max-width:991.98px){
  .cta-band{grid-template-columns:1fr;padding:36px 24px}
  .cta-band h2{font-size:24px}
}

/* ============ 内链块 ============ */
.inner-links{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.inner-link{display:flex;align-items:center;justify-content:space-between;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:20px 22px;box-shadow:var(--shadow-sm);transition:all .22s ease;color:var(--title)}
.inner-link:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px);color:var(--brand)}
.inner-link strong{font-size:16px;display:block}
.inner-link span{font-size:13.5px;color:var(--muted);display:block;margin-top:4px}
.inner-link i{color:var(--brand-light)}
@media (max-width:767.98px){.inner-links{grid-template-columns:1fr}}

/* ============ 页脚 ============ */
.site-footer{background:#fff;border-top:1px solid var(--line);margin-top:8px;padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-toggle{display:flex;width:100%;align-items:center;justify-content:space-between;background:none;border:none;padding:0;cursor:default;color:var(--title)}
.footer-toggle i{display:none;color:var(--muted);font-size:13px}
.footer-title{font-size:16px;font-weight:700;color:var(--title)}
.footer-body{margin-top:18px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px}
.footer-brand .brand-text{display:flex;flex-direction:column;line-height:1.2}
.footer-desc{font-size:14px;color:var(--muted);margin-top:16px;line-height:1.8}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14.5px;color:var(--text)}
.footer-links a:hover{color:var(--brand)}
.footer-contact li{display:flex;gap:10px;font-size:14.5px;color:var(--text);margin-bottom:12px}
.footer-contact i{color:var(--brand-light);margin-top:6px;font-size:14px}
.footer-bottom{border-top:1px solid var(--line);margin-top:48px;padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--muted)}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr;gap:0}
  .footer-col{border-bottom:1px solid var(--line)}
  .footer-toggle{cursor:pointer;padding:16px 0}
  .footer-toggle i{display:block;transition:transform .2s ease}
  .footer-col.open .footer-toggle i{transform:rotate(180deg)}
  .footer-body{max-height:0;overflow:hidden;margin-top:0;transition:max-height .3s ease,padding .2s ease}
  .footer-col.open .footer-body{max-height:520px;padding-bottom:18px}
  .site-footer{padding-top:24px}
  .footer-bottom{margin-top:24px}
}

/* ============ 移动端底部 Tab ============ */
.bottom-tab{display:none}
@media (max-width:991.98px){
  body{padding-bottom:calc(62px + env(safe-area-inset-bottom))}
  .bottom-tab{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;z-index:1040;background:#fff;border-top:1px solid var(--line);padding:6px 4px calc(6px + env(safe-area-inset-bottom));box-shadow:0 -2px 12px rgba(21,87,168,.07)}
  .tab-item{display:flex;flex-direction:column;align-items:center;gap:3px;font-size:10px;color:var(--muted);padding:4px 0}
  .tab-item i{font-size:18px}
  .tab-item.active{color:var(--brand)}
  .tab-item.active i{color:var(--brand)}
  .tab-item:hover{color:var(--brand)}
}

/* roulang page: category3 */
:root{
  --brand:#1557A8;
  --brand-dark:#0E3F80;
  --brand-light:#2C74CE;
  --brand-050:#EAF2FC;
  --accent:#E8912C;
  --accent-dark:#D07C1C;
  --teal:#1F9E8F;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --title:#18222E;
  --text:#43536A;
  --muted:#7C8CA1;
  --line:#E4EBF4;
  --radius-card:14px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 2px 10px rgba(21,87,168,.06);
  --shadow-2:0 12px 30px rgba(21,87,168,.14);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter","Helvetica Neue",Arial,sans-serif;
  --bs-primary:#1557A8;
  --bs-body-font-family:var(--font-cn);
  --bs-border-radius:10px;
  --bs-body-color:var(--text);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--brand-light);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{color:var(--title);font-weight:700;letter-spacing:-.01em;line-height:1.25;margin:0;}
p{margin:0 0 14px;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid rgba(21,87,168,.45);outline-offset:2px;}

.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(21,87,168,.10);}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-light) 100%);
  color:#fff;font-family:var(--font-num);font-weight:700;font-size:19px;
  display:flex;align-items:center;justify-content:center;
}
.brand-text{display:flex;flex-direction:column;line-height:1.12;}
.brand-cn{font-size:17px;font-weight:700;color:var(--brand-dark);letter-spacing:-.01em;}
.brand-en{font-family:var(--font-num);font-size:10.5px;color:var(--muted);letter-spacing:.10em;text-transform:uppercase;}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:14px;flex:1;}
.mnav-link{
  position:relative;
  display:inline-block;
  padding:9px 14px;
  font-size:15px;color:#3B4A5E;border-radius:8px;
  transition:color .2s ease,background .2s ease;
}
.mnav-link:hover{color:var(--brand);background:var(--brand-050);}
.mnav-link.active{color:var(--brand);font-weight:700;}
.mnav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--brand);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--text);display:flex;align-items:center;justify-content:center;
  transition:.2s ease;cursor:pointer;
}
.icon-btn:hover{color:var(--brand);border-color:#C9DCF5;background:var(--brand-050);}
.menu-toggle{display:none;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(21,87,168,.20);}
.btn-primary:hover{background:#114A94;color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(21,87,168,.26);}
.btn-outline{background:#fff;color:var(--brand);border-color:#C6DAF3;}
.btn-outline:hover{background:var(--brand-050);color:var(--brand-dark);transform:translateY(-1px);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(232,145,44,.22);}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px;}

.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:10px 24px 16px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 4px;font-size:15px;color:#3B4A5E;border-bottom:1px solid var(--line);
}
.mobile-drawer a:last-child{border-bottom:none;}
.mobile-drawer a.active{color:var(--brand);font-weight:700;}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;padding:14px 0;color:var(--muted);flex-wrap:wrap;}
.crumb a{color:var(--brand-light);}
.crumb a:hover{color:var(--brand-dark);}
.crumb .sep{color:#B9C6D8;}
.crumb .now{color:var(--muted);}

/* ---------- banner ---------- */
.page-banner{
  position:relative;overflow:hidden;
  background-color:var(--brand-050);
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center right;
  border-bottom:1px solid var(--line);
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.90) 46%,rgba(234,242,252,.55) 100%);
}
.banner-inner{position:relative;padding:58px 0 62px;max-width:780px;}
.tag-badge{
  display:inline-flex;align-items:center;gap:7px;height:24px;padding:0 12px;
  border-radius:999px;background:rgba(31,158,143,.12);color:var(--teal);
  font-size:12.5px;font-weight:600;margin-bottom:16px;
}
.banner-inner h1{
  font-size:44px;margin-bottom:16px;color:var(--brand-dark);
}
.banner-inner h1 span{color:var(--brand);}
.banner-sub{font-size:17px;line-height:1.75;color:#4C5C73;max-width:660px;margin-bottom:24px;}
.banner-meta{display:flex;gap:14px;flex-wrap:wrap;}
.banner-meta .btn{height:46px;}
.banner-facts{display:flex;gap:30px;flex-wrap:wrap;margin-top:30px;padding-top:24px;border-top:1px dashed #C9DCF5;}
.fact-item{min-width:120px;}
.fact-num{font-family:var(--font-num);font-size:24px;font-weight:700;color:var(--brand);line-height:1.2;}
.fact-label{font-size:13.5px;color:var(--muted);}

/* ---------- layout two columns ---------- */
.section{padding:76px 0;}
.section.tight{padding:56px 0;}
.section-head{max-width:720px;margin-bottom:38px;}
.section-head h2{font-size:32px;margin-bottom:12px;}
.section-head p{font-size:15.5px;color:var(--muted);margin:0;}

.two-col{display:grid;grid-template-columns:264px 1fr;gap:36px;align-items:start;}
.toc{
  position:sticky;top:96px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 18px;box-shadow:var(--shadow-1);
}
.toc-title{font-size:13px;letter-spacing:.06em;color:var(--muted);text-transform:uppercase;font-family:var(--font-num);margin-bottom:14px;}
.toc-list li+li{margin-top:2px;}
.toc-link{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:9px;font-size:14.5px;color:#455468;
  border-left:2px solid transparent;transition:.2s ease;
}
.toc-link i{font-size:12px;color:#9FB1C9;}
.toc-link:hover{background:var(--brand-050);color:var(--brand);}
.toc-link.active{background:var(--brand-050);color:var(--brand);font-weight:700;border-left-color:var(--brand);}
.toc-link.active i{color:var(--brand);}
.toc-help{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);}
.toc-help p{font-size:13.5px;color:var(--muted);margin-bottom:12px;}
.toc-help .btn{width:100%;height:42px;font-size:14px;}

.content-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:34px 36px;box-shadow:var(--shadow-1);
}
.content-block+.content-block{margin-top:44px;padding-top:36px;border-top:1px solid var(--line);}
.content-block h2{font-size:24px;margin-bottom:16px;position:relative;padding-left:16px;}
.content-block h2::before{content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:3px;background:var(--brand);}
.content-block h3{font-size:18px;margin:22px 0 10px;}
.content-block p{font-size:15.5px;line-height:1.85;}
.lead-p{font-size:16.5px;color:#38495F;}

.step-list{margin:20px 0 6px;}
.step-list li{
  position:relative;padding-left:44px;padding-bottom:20px;
}
.step-list li:last-child{padding-bottom:0;}
.step-list li::before{
  content:attr(data-step);
  position:absolute;left:0;top:1px;
  width:28px;height:28px;border-radius:9px;
  background:var(--brand-050);color:var(--brand);
  font-family:var(--font-num);font-size:13px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.step-list li::after{
  content:"";position:absolute;left:13.5px;top:32px;bottom:2px;width:1px;background:var(--line);
}
.step-list li:last-child::after{display:none;}
.step-list strong{display:block;font-size:15.5px;color:var(--title);margin-bottom:3px;}
.step-list span{font-size:14.5px;color:var(--text);}

.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 6px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  height:32px;padding:0 14px;border-radius:999px;
  background:var(--brand-050);color:var(--brand);
  font-size:13.5px;font-weight:600;
}
.chip.teal{background:rgba(31,158,143,.10);color:var(--teal);}
.chip.amber{background:rgba(232,145,44,.12);color:#B96F14;}

.note-box{
  border-left:3px solid var(--brand);
  background:#F3F8FF;
  border-radius:0 var(--radius-img) var(--radius-img) 0;
  padding:16px 20px;font-size:14.5px;color:#3E4E64;margin:20px 0;
}
.note-box strong{color:var(--brand-dark);}

.mini-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px;}
.mini-stat{
  background:var(--brand-050);border-radius:var(--radius-img);
  padding:18px 18px 16px;
}
.mini-stat .num{font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--brand-dark);line-height:1.2;}
.mini-stat .txt{font-size:13.5px;color:var(--muted);margin-top:4px;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:#C6DAF3;box-shadow:var(--shadow-2);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:17px;font-weight:700;color:var(--title);
  transition:color .2s ease,background .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);background:#FAFCFF;}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:8px;
  background:var(--brand-050);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:13px;
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.faq-item[open] .faq-icon{background:var(--brand);color:#fff;transform:rotate(180deg);}
.faq-body{
  padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--text);
  border-top:1px solid var(--line);margin-top:0;padding-top:18px;
}
.faq-body ul{margin:10px 0 0;}
.faq-body ul li{position:relative;padding-left:18px;margin-bottom:6px;}
.faq-body ul li::before{content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;background:var(--brand);border-radius:2px;}

/* ---------- resource cards ---------- */
.res-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.res-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.res-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CFE0F5;}
.res-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--brand-050);border-radius:0;}
.res-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease;}
.res-card:hover .res-thumb img{transform:scale(1.03);}
.res-tag{
  position:absolute;left:12px;top:12px;
  height:24px;padding:0 11px;border-radius:999px;
  background:rgba(255,255,255,.94);color:var(--teal);
  font-size:12.5px;font-weight:600;display:inline-flex;align-items:center;
}
.res-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.res-body h3{font-size:18px;margin-bottom:8px;}
.res-body p{font-size:14.5px;color:var(--muted);margin-bottom:16px;flex:1;}
.res-meta{display:flex;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;}
.res-meta span i{color:var(--brand-light);margin-right:6px;}
.res-meta a{font-weight:600;color:var(--brand);}
.res-meta a:hover{color:var(--brand-dark);}

/* ---------- back entries ---------- */
.back-entries{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.back-card{
  display:flex;align-items:center;gap:18px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 26px;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.back-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#CFE0F5;}
.back-ico{
  width:48px;height:48px;border-radius:13px;flex-shrink:0;
  background:var(--brand-050);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:19px;
}
.back-card h3{font-size:17px;margin-bottom:4px;}
.back-card p{font-size:14px;color:var(--muted);margin:0;}
.back-card .go{margin-left:auto;color:#A9BAD0;font-size:16px;transition:color .2s ease,transform .2s ease;}
.back-card:hover .go{color:var(--brand);transform:translateX(3px);}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-dark);
  border-radius:18px;
  padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.05);
}
.cta-band h2{color:#fff;font-size:30px;margin-bottom:10px;position:relative;}
.cta-band p{color:rgba(255,255,255,.78);font-size:15.5px;margin:0;max-width:560px;position:relative;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;}
.cta-actions .btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.cta-actions .btn-outline:hover{background:rgba(255,255,255,.12);color:#fff;}
.cta-actions .btn-accent{background:var(--accent);}
.cta-actions .btn-accent:hover{background:var(--accent-dark);}

/* ---------- footer ---------- */
.site-footer{background:#0B1725;color:#9BAEC4;margin-top:80px;padding-top:58px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:34px;padding-bottom:40px;}
.footer-title{display:block;font-size:15px;font-weight:700;color:#EAF2FC;margin-bottom:16px;letter-spacing:.01em;}
.footer-toggle{
  display:flex;align-items:center;justify-content:space-between;width:100%;
  background:transparent;border:none;padding:0;cursor:default;color:inherit;
}
.footer-toggle i{display:none;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{width:34px;height:34px;font-size:17px;border-radius:10px;}
.footer-brand .brand-cn{color:#EAF2FC;font-size:16px;}
.footer-brand .brand-en{color:#7C8CA1;}
.footer-desc{font-size:14px;line-height:1.8;color:#94A7BE;margin:0;}
.footer-links li+li{margin-top:10px;}
.footer-links a{color:#9BAEC4;font-size:14.5px;transition:color .2s ease,padding-left .2s ease;}
.footer-links a:hover{color:#fff;padding-left:4px;}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;margin-bottom:12px;color:#9BAEC4;}
.footer-contact li i{color:var(--brand-light);margin-top:5px;font-size:13px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:#7C8CA1;
}
.footer-bottom .links a{color:#9BAEC4;margin-left:18px;}
.footer-bottom .links a:hover{color:#fff;}

/* ---------- mobile tab bar ---------- */
.tabbar{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  background:rgba(255,255,255,.98);
  border-top:1px solid var(--line);
  padding:6px 4px calc(6px + env(safe-area-inset-bottom));
  box-shadow:0 -6px 20px rgba(21,87,168,.08);
}
.tabbar-inner{display:grid;grid-template-columns:repeat(4,1fr);}
.tab-item{
  display:flex;flex-direction:column;align-items:center;gap:3px;
  padding:7px 2px;font-size:11px;color:#8798AE;border-radius:10px;
}
.tab-item i{font-size:18px;}
.tab-item.active{color:var(--brand);font-weight:700;}
.tab-item.active i{color:var(--brand);}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .banner-inner h1{font-size:40px;}
}
@media (max-width:991.98px){
  .main-nav{display:none;}
  .menu-toggle{display:flex;}
  .header-inner{height:66px;gap:14px;}
  .brand{margin-right:auto;}
  .header-actions .btn-header-cta{display:none;}
  .two-col{grid-template-columns:1fr;gap:24px;}
  .toc{position:static;}
  .res-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .section{padding:56px 0;}
  .section-head h2{font-size:26px;}
  .banner-inner{padding:46px 0 50px;}
  .banner-inner h1{font-size:34px;}
  .content-body{padding:26px 24px;}
  .cta-band{padding:40px 32px;}
  .cta-band h2{font-size:25px;}
}
@media (max-width:767.98px){
  body{padding-bottom:calc(62px + env(safe-area-inset-bottom));}
  .tabbar{display:block;}
  .container{padding:0 16px;}
  .banner-inner h1{font-size:28px;}
  .banner-sub{font-size:15.5px;}
  .banner-facts{gap:20px;}
  .fact-num{font-size:20px;}
  .section{padding:46px 0;}
  .section-head{margin-bottom:28px;}
  .section-head h2{font-size:24px;}
  .content-block h2{font-size:20px;}
  .res-grid{grid-template-columns:1fr;}
  .back-entries{grid-template-columns:1fr;}
  .mini-stats{grid-template-columns:1fr;}
  .faq-item summary{font-size:15.5px;padding:17px 18px;}
  .faq-body{padding:16px 18px 20px;}
  .cta-band{border-radius:14px;padding:34px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:0;padding-bottom:14px;}
  .footer-col{border-bottom:1px solid rgba(255,255,255,.08);padding:4px 0;}
  .footer-toggle{cursor:pointer;padding:14px 0;}
  .footer-toggle i{display:block;color:#7C8CA1;transition:transform .25s ease;}
  .footer-col.open .footer-toggle i{transform:rotate(180deg);}
  .footer-body{display:none;padding-bottom:16px;}
  .footer-col.open .footer-body{display:block;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .footer-bottom .links a{margin:0 16px 0 0;}
  .crumb{font-size:12.5px;padding:12px 0;}
}
@media (max-width:575.98px){
  .banner-meta{flex-direction:column;}
  .banner-meta .btn{width:100%;}
  .step-list li{padding-left:38px;}
  .content-body{padding:22px 18px;}
}