/* roulang page: index */
/* ============ 1. 设计变量与基础样式 ============ */
:root{
  --c-primary:#2C5FA8;
  --c-primary-dark:#1D4076;
  --c-primary-light:#EAF1FA;
  --c-accent:#12A594;
  --c-accent-light:#E4F6F3;
  --c-warn:#F08A3C;
  --c-warn-light:#FDF1E6;
  --c-bg:#F7F9FC;
  --c-card:#FFFFFF;
  --c-line:#E4EAF2;
  --c-line-soft:#EEF2F7;
  --c-text:#333B47;
  --c-muted:#6B7684;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --sh-1:0 2px 8px rgba(28,54,92,.06);
  --sh-2:0 12px 28px rgba(28,54,92,.12);
  --container:1200px;
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:#1F2833;font-weight:700;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,background-color .2s ease;}
a:hover{color:var(--c-primary-dark);}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;}
input,button,textarea,select{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* ============ 2. 容器与板块 ============ */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
@media (min-width:1440px){:root{--container:1280px;}}
.section{padding:80px 0;}
.section-tight{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
.section-head.center{justify-content:center;text-align:center;}
.section-head h2{font-size:clamp(22px,2.4vw,28px);letter-spacing:.2px;}
.section-sub{margin-top:8px;font-size:14px;color:var(--c-muted);}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);
  text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;
}
.text-link i{font-size:11px;transition:transform .2s ease;}
.text-link:hover{color:var(--c-primary-dark);}
.text-link:hover i{transform:translateX(3px);}

/* ============ 3. 按钮 / 徽章 / 标签 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;white-space:nowrap;text-align:center;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 2px 8px rgba(44,95,168,.18);}
.btn-primary:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 6px 16px rgba(29,64,118,.22);}
.btn-primary:active{transform:translateY(0);background:#173563;}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-light);color:var(--c-primary-dark);border-color:var(--c-primary-dark);}
.btn-ghost:active{background:#DCE8F7;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-lg{height:48px;padding:0 28px;font-size:16px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{background:#E9EDF3;color:#9AA4B1;border-color:#E9EDF3;box-shadow:none;cursor:not-allowed;transform:none;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:999px;font-size:12px;font-weight:600;line-height:1;
  background:var(--c-primary-light);color:var(--c-primary);
}
.badge-accent{background:var(--c-accent-light);color:#0C7A6D;}
.badge-warn{background:var(--c-warn-light);color:#C4691F;}
.badge-on-cover{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.94);color:var(--c-primary);box-shadow:0 2px 8px rgba(28,54,92,.12);}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;background:var(--c-line-soft);color:var(--c-muted);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 14px;
  border-radius:999px;background:var(--c-primary-light);color:var(--c-primary);
  font-size:13px;font-weight:600;margin-bottom:16px;
}

/* ============ 4. 页头与导航 ============ */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);border-bottom:1px solid var(--c-line);transition:box-shadow .2s ease,background-color .2s ease;}
.site-header.is-scrolled{box-shadow:0 8px 20px rgba(28,54,92,.08);background:rgba(255,255,255,.94);}
.topbar{height:64px;}
.topbar-inner{display:flex;align-items:center;gap:20px;height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,#2C5FA8,#1D4076);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;font-size:16px;
}
.brand-name{font-size:18px;font-weight:700;color:#1F2833;letter-spacing:.4px;}
.brand:hover .brand-name{color:var(--c-primary);}
.search-box{
  position:relative;display:flex;align-items:center;flex:1 1 auto;
  max-width:300px;height:40px;border-radius:999px;
  background:#F3F6FA;border:1px solid var(--c-line);
  padding:0 16px;transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.search-box i{color:#9AA4B1;font-size:14px;margin-right:10px;}
.search-box input{
  flex:1;border:0;background:transparent;outline:none;height:100%;
  font-size:14px;color:var(--c-text);min-width:0;
}
.search-box input::placeholder{color:#9AA4B1;}
.search-box:focus-within{border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 4px rgba(44,95,168,.12);}
.hot-words{display:flex;align-items:center;gap:6px;flex-shrink:0;}
.hot-title{font-size:12px;color:#9AA4B1;}
.hot-words a{
  font-size:13px;color:var(--c-muted);padding:4px 10px;border-radius:999px;
  transition:color .2s ease,background-color .2s ease;
}
.hot-words a:hover{color:var(--c-primary);background:var(--c-primary-light);}
.topbar-cta{flex-shrink:0;margin-left:auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-text);font-size:17px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}
.channel-bar{border-top:1px solid var(--c-line-soft);}
.channel-inner{display:flex;align-items:center;gap:8px;height:44px;overflow-x:auto;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;display:inline-flex;align-items:center;height:44px;
  padding:0 14px;font-size:15px;color:var(--c-text);white-space:nowrap;
  transition:color .2s ease,background-color .2s ease;
}
.channel-link:hover{color:var(--c-primary);background:var(--c-primary-light);border-radius:8px 8px 0 0;}
.channel-link.is-active{color:var(--c-primary);font-weight:600;}
.channel-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--c-primary);border-radius:2px 2px 0 0;
}
/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,32,60,.45);opacity:0;visibility:hidden;
  transition:opacity .2s ease,visibility .2s ease;z-index:190;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,86vw);background:#fff;z-index:200;
  transform:translateX(100%);transition:transform .25s ease;
  padding:20px;overflow-y:auto;box-shadow:-12px 0 32px rgba(28,54,92,.14);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--c-line);background:#fff;cursor:pointer;color:var(--c-muted);}
.drawer-close:hover{border-color:var(--c-primary);color:var(--c-primary);}
.drawer-search{max-width:none;width:100%;margin-bottom:16px;}
.drawer-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px;}
.drawer-chips a{
  font-size:13px;padding:6px 12px;border-radius:999px;
  background:var(--c-primary-light);color:var(--c-primary);
}
.drawer-links{display:flex;flex-direction:column;margin-bottom:22px;}
.drawer-links a{
  padding:12px 14px;font-size:15px;color:var(--c-text);border-radius:8px;
  border-left:3px solid transparent;
}
.drawer-links a:hover{background:#F4F7FB;color:var(--c-primary);}
.drawer-links a.is-active{color:var(--c-primary);font-weight:600;border-left-color:var(--c-primary);background:var(--c-primary-light);}

/* ============ 5. Hero ============ */
.hero{padding:56px 0 64px;background:linear-gradient(180deg,#FFFFFF 0%,#F7F9FC 100%);}
.hero-inner{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:48px;align-items:center;min-height:460px;}
.hero-copy{max-width:560px;}
.hero-copy h1{font-size:clamp(30px,4vw,42px);line-height:1.25;letter-spacing:.2px;}
.hero-sub{margin-top:18px;font-size:16px;color:var(--c-muted);line-height:1.8;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.trust-row{display:flex;flex-wrap:wrap;gap:24px;margin-top:32px;padding-top:24px;border-top:1px solid var(--c-line);}
.trust-row li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);}
.trust-row i{font-size:20px;color:var(--c-accent);line-height:1;}
.hero-media{position:relative;}
.hero-media-frame{position:relative;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-2);background:#E9EEF6;}
.hero-media-frame img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-float{
  position:absolute;right:-8px;bottom:-16px;display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--c-line-soft);border-radius:12px;
  padding:12px 18px;box-shadow:var(--sh-2);
}
.hero-float strong{font-size:18px;color:var(--c-primary-dark);line-height:1.4;}
.hero-float span{font-size:12px;color:var(--c-muted);}

/* ============ 6. 频道快捷入口 ============ */
.quick-channels{padding:0 0 8px;}
.channel-chips{
  display:flex;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:8px 0 16px;scrollbar-width:none;
}
.channel-chips::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;scroll-snap-align:start;
  display:inline-flex;align-items:center;gap:10px;height:52px;padding:0 22px;
  background:#fff;border:1px solid var(--c-line-soft);border-radius:12px;
  box-shadow:var(--sh-1);color:var(--c-text);font-size:15px;font-weight:600;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
}
.chip i{font-size:17px;color:var(--c-primary);}
.chip:hover{color:var(--c-primary);border-color:#CBDCF1;transform:translateY(-3px);box-shadow:var(--sh-2);}

/* ============ 7. 卡片网格 ============ */
.feature-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;grid-auto-flow:dense;
}
.card{
  background:var(--c-card);border:1px solid var(--c-line-soft);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#DCE6F2;}
.card-link{display:flex;flex-direction:column;height:100%;color:inherit;}
.card-link:hover{color:inherit;}
.card-cover{position:relative;overflow:hidden;background:#EDF1F7;}
.card-cover img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .2s ease;}
.card:hover .card-cover img{transform:scale(1.03);}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-title{
  font-size:17px;line-height:1.45;font-weight:600;color:#1F2833;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-desc{
  font-size:14px;color:var(--c-muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line-soft);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.card-meta{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--c-muted);}
.card-meta i{font-size:12px;color:#9AA4B1;}
.card-foot .text-link{font-size:13px;}
.feature-card.is-large{grid-column:span 2;grid-row:span 2;}
.feature-card.is-large .card-cover img{aspect-ratio:16/9;}
.feature-card.is-large .card-title{font-size:20px;-webkit-line-clamp:2;}
.feature-card.is-large .card-desc{-webkit-line-clamp:3;}
.feature-card.is-wide{grid-column:span 2;}
.feature-card.is-wide .card-link{flex-direction:row;}
.feature-card.is-wide .card-cover{flex:0 0 42%;}
.feature-card.is-wide .card-cover img{height:100%;aspect-ratio:auto;}

/* ============ 8. 评价轮播 ============ */
.review-nav{display:flex;gap:10px;}
.round-btn{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--c-line);
  background:#fff;color:var(--c-muted);font-size:13px;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
  transition:color .2s ease,border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.round-btn:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-primary-light);box-shadow:var(--sh-1);}
.round-btn:active{background:#DCE8F7;}
.round-btn[disabled]{color:#C2C9D3;border-color:var(--c-line-soft);background:#F7F9FC;cursor:not-allowed;}
.review-track{
  display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 4px 20px;scrollbar-width:none;scroll-behavior:smooth;
}
.review-track::-webkit-scrollbar{display:none;}
.review-card{
  flex:0 0 calc((100% - 48px)/3);scroll-snap-align:start;
  background:#fff;border:1px solid var(--c-line-soft);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:14px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.review-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.review-top{display:flex;align-items:center;gap:12px;}
.avatar{
  width:40px;height:40px;border-radius:50%;flex-shrink:0;
  background:var(--c-primary-light);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-weight:600;font-size:15px;
}
.review-name{font-size:14px;font-weight:600;color:#1F2833;line-height:1.4;}
.stars{font-size:12px;color:var(--c-warn);letter-spacing:2px;line-height:1.4;}
.review-text{font-size:14px;color:var(--c-text);line-height:1.8;}
.review-card .tag{align-self:flex-start;}
.review-dots{display:flex;justify-content:center;gap:8px;margin-top:8px;}
.review-dots button{
  width:8px;height:8px;border-radius:50%;border:0;padding:0;
  background:#CDD6E3;cursor:pointer;transition:background-color .2s ease,width .2s ease;
}
.review-dots button.is-active{width:22px;border-radius:999px;background:var(--c-primary);}

/* ============ 9. 保障条 ============ */
.guarantee-bar{
  background:var(--c-primary-light);border-radius:14px;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  padding:24px 8px;
}
.guarantee-item{display:flex;gap:14px;padding:0 20px;align-items:flex-start;}
.guarantee-item + .guarantee-item{border-left:1px solid #D3E0F2;}
.guarantee-item i{font-size:24px;color:var(--c-primary);line-height:1.4;}
.guarantee-item h3{font-size:14px;font-weight:600;color:#1F2833;line-height:1.5;}
.guarantee-item p{font-size:12px;color:var(--c-muted);line-height:1.7;margin-top:2px;}

/* ============ 10. 最新信息 ============ */
.latest-wrap{margin:0 -12px;}
.latest-lead{height:100%;}
.latest-lead .card-cover img{aspect-ratio:16/9;}
.latest-lead .card-title{font-size:20px;-webkit-line-clamp:2;}
.latest-lead .card-desc{-webkit-line-clamp:2;}
.latest-list{
  background:#fff;border:1px solid var(--c-line-soft);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:8px 20px;height:100%;
}
.latest-list li + li{border-top:1px solid var(--c-line-soft);}
.latest-list a{display:block;padding:14px 0;color:inherit;}
.latest-list a:hover .latest-title{color:var(--c-primary);}
.latest-title{
  display:block;font-size:14px;font-weight:600;color:#1F2833;line-height:1.6;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  transition:color .2s ease;
}
.latest-meta{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--c-muted);margin-top:6px;}
.empty-state{
  background:#fff;border:1px dashed var(--c-line);border-radius:var(--r-card);
  padding:48px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-illu{
  width:88px;height:88px;border-radius:16px;background:#F1F4F9;
  display:flex;align-items:center;justify-content:center;font-size:30px;color:#A9B4C4;
}
.empty-state p{font-size:14px;color:var(--c-muted);}

/* ============ 11. FAQ ============ */
.faq-list{max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:12px;
  margin-bottom:12px;overflow:hidden;transition:background-color .2s ease,border-color .2s ease;
}
.faq-item[open]{background:#FBFCFF;border-color:#D5E2F3;box-shadow:var(--sh-1);}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:16px;font-weight:600;color:#1F2833;
  border-left:3px solid transparent;transition:border-color .2s ease,color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--c-primary);}
.faq-item[open] summary{border-left-color:var(--c-primary);color:var(--c-primary-dark);}
.faq-item summary i{
  font-size:14px;color:var(--c-muted);flex-shrink:0;
  transition:transform .2s ease,color .2s ease;
}
.faq-item[open] summary i{transform:rotate(45deg);color:var(--c-primary);}
.faq-answer{padding:0 20px 20px 23px;font-size:14px;line-height:1.8;color:var(--c-muted);}

/* ============ 12. CTA 带 ============ */
.cta-band{padding:0 0 88px;}
.cta-inner{
  background:var(--c-primary-light);border:1px solid #D5E2F3;border-radius:16px;
  padding:44px;display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);
  gap:40px;align-items:center;
}
.cta-copy h2{font-size:clamp(20px,2.2vw,26px);line-height:1.4;}
.cta-copy > p{margin-top:12px;font-size:14px;color:var(--c-muted);}
.cta-points{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:20px;}
.cta-points li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text);}
.cta-points i{color:var(--c-accent);font-size:15px;}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
.cta-note{font-size:12px;color:var(--c-muted);text-align:center;}

/* ============ 13. 页脚 ============ */
.site-footer{background:#F2F5FA;border-top:1px solid var(--c-line);padding-top:64px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--c-muted);line-height:1.8;max-width:300px;}
.qr-box{
  margin-top:20px;width:120px;height:120px;border-radius:12px;background:#E7ECF4;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  color:#8A95A5;font-size:12px;
}
.qr-box i{font-size:34px;}
.footer-col h3{font-size:15px;margin-bottom:16px;color:#1F2833;}
.footer-col ul li + li{margin-top:10px;}
.footer-col ul a{font-size:14px;color:var(--c-muted);}
.footer-col ul a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px;}
.footer-contact li{font-size:14px;color:var(--c-muted);display:flex;gap:8px;align-items:flex-start;line-height:1.7;}
.footer-contact i{color:var(--c-primary);margin-top:4px;font-size:13px;}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:20px 0;text-align:center;
}
.footer-bottom p{font-size:12px;color:#8A95A5;}

/* ============ 14. 响应式 ============ */
@media (max-width:1200px){
  .hot-words{display:none;}
}
@media (max-width:1024px){
  .section{padding:64px 0;}
  .hero-inner{grid-template-columns:1fr;gap:36px;min-height:0;}
  .hero-copy{max-width:none;}
  .hero-media{order:2;}
  .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .feature-card.is-large{grid-column:span 2;grid-row:span 1;}
  .feature-card.is-wide{grid-column:span 2;}
  .review-card{flex:0 0 calc((100% - 24px)/2);}
  .guarantee-bar{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;padding:24px;}
  .guarantee-item + .guarantee-item{border-left:0;}
  .guarantee-item:nth-child(even){border-left:1px solid #D3E0F2;}
  .cta-inner{grid-template-columns:1fr;padding:36px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}
@media (max-width:860px){
  .search-box,.hot-words{display:none;}
  .topbar-cta{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;}
  .channel-bar{display:none;}
  .topbar,.topbar-inner{height:56px;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px;}
  .hero{padding:36px 0 44px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .trust-row{gap:12px;flex-direction:column;}
  .hero-float{right:8px;bottom:-12px;padding:10px 14px;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-card.is-large,.feature-card.is-wide{grid-column:span 1;grid-row:span 1;}
  .feature-card.is-wide .card-link{flex-direction:column;}
  .feature-card.is-wide .card-cover{flex:none;}
  .feature-card.is-wide .card-cover img{aspect-ratio:4/3;}
  .review-card{flex:0 0 100%;}
  .review-nav{display:none;}
  .guarantee-bar{grid-template-columns:1fr;gap:0;padding:8px 20px;}
  .guarantee-item{padding:16px 0;}
  .guarantee-item + .guarantee-item{border-left:0;border-top:1px solid #D3E0F2;}
  .guarantee-item:nth-child(even){border-left:0;}
  .latest-list{padding:4px 16px;}
  .faq-item summary{padding:16px;font-size:15px;}
  .faq-answer{padding:0 16px 16px 19px;}
  .cta-band{padding:0 0 56px;}
  .cta-inner{padding:24px;gap:24px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
}

/* roulang page: article */
:root{
  --primary:#2C5FA8;
  --primary-dark:#1D4076;
  --primary-light:#EAF1FA;
  --accent:#12A594;
  --warm:#F08A3C;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --line:#E4EAF2;
  --line-soft:#EEF2F7;
  --text:#333B47;
  --title:#22303F;
  --muted:#6B7684;
  --faint:#8A93A1;
  --radius-card:14px;
  --radius-img:16px;
  --radius-btn:10px;
  --shadow-1:0 2px 8px rgba(28,54,92,.06);
  --shadow-2:0 12px 28px rgba(28,54,92,.12);
  --sp-8:8px;--sp-12:12px;--sp-16:16px;--sp-24:24px;--sp-32:32px;--sp-48:48px;--sp-64:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.8;color:var(--text);background:var(--bg);
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--primary-dark)}
h1,h2,h3,h4{margin:0 0 var(--sp-16);color:var(--title);font-weight:700;line-height:1.3}
p{margin:0 0 var(--sp-16)}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.num,.meta-row,.rank-no{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}
a:focus-visible,button:focus-visible,input:focus-visible,.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
  text-align:center;min-width:44px;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-secondary{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-secondary:hover{background:var(--primary-light);color:var(--primary-dark)}
.btn-ghost{background:transparent;color:var(--muted);border-color:var(--line)}
.btn-ghost:hover{color:var(--primary);border-color:var(--primary);background:#fff}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-block{width:100%}
.btn:active{transform:translateY(0)}
.btn[disabled],.btn.is-disabled{background:#EEF2F7;color:var(--faint);border-color:#E4EAF2;box-shadow:none;cursor:not-allowed;transform:none}
.link-text{font-size:14px;font-weight:600;color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.link-text:hover{color:var(--primary-dark)}
.link-more{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{color:var(--primary-dark);gap:10px}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge-soft{background:var(--primary-light);color:var(--primary)}
.badge-accent{background:rgba(240,138,60,.14);color:#B65E18}
.badge-teal{background:rgba(18,165,148,.12);color:#0B7C70}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);border-bottom:1px solid var(--line);transition:box-shadow .25s ease,background-color .25s ease}
.site-header.is-scrolled{box-shadow:0 8px 20px rgba(28,54,92,.08);background:rgba(255,255,255,.96)}
.topbar-inner{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:36px;height:36px;border-radius:10px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:17px}
.brand-name{font-size:18px;font-weight:700;color:var(--title);letter-spacing:.5px}
.brand:hover .brand-name{color:var(--primary)}
.search-box{position:relative;flex:1 1 auto;max-width:320px;min-width:180px;display:flex;align-items:center}
.search-box>i{position:absolute;left:16px;color:var(--faint);font-size:14px;pointer-events:none}
.search-box input{
  width:100%;height:40px;border-radius:999px;border:1px solid var(--line);
  background:#F2F5FA;padding:0 16px 0 40px;font-size:14px;color:var(--text);transition:.2s;
}
.search-box input::placeholder{color:var(--faint)}
.search-box input:focus{outline:none;background:#fff;border-color:var(--primary);box-shadow:0 0 0 4px rgba(44,95,168,.12)}
.hot-words{display:flex;align-items:center;gap:8px;font-size:13px;flex:0 0 auto}
.hot-title{color:var(--faint)}
.hot-words a{padding:4px 10px;border-radius:999px;background:#F2F5FA;color:var(--muted);font-size:13px}
.hot-words a:hover{background:var(--primary-light);color:var(--primary)}
.topbar-cta{flex:0 0 auto}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--title);align-items:center;justify-content:center;font-size:16px;cursor:pointer;flex:0 0 auto;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary)}
.channel-bar{border-top:1px solid var(--line-soft)}
.channel-inner{display:flex;align-items:center;gap:6px;height:44px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:14px;color:var(--muted);border-radius:8px;white-space:nowrap;
}
.channel-link:hover{color:var(--primary);background:var(--primary-light)}
.channel-link.is-active{color:var(--primary);font-weight:600}
.channel-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;background:var(--primary)}

/* ---------- 移动端抽屉 ---------- */
.nav-overlay{position:fixed;inset:0;background:rgba(15,32,60,.45);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:200}
.nav-overlay.is-open{opacity:1;visibility:visible}
.mobile-panel{
  position:fixed;top:0;right:0;width:min(84vw,340px);height:100%;background:#fff;z-index:300;
  transform:translateX(105%);transition:transform .28s ease;padding:20px;overflow-y:auto;
  display:flex;flex-direction:column;gap:18px;box-shadow:-8px 0 28px rgba(28,54,92,.12);
}
.mobile-panel.is-open{transform:translateX(0)}
.mobile-head{display:flex;align-items:center;justify-content:space-between}
.mobile-head span{font-size:15px;font-weight:700;color:var(--title)}
.mobile-close{width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--muted);cursor:pointer}
.mobile-close:hover{color:var(--primary);border-color:var(--primary)}
.mobile-search{max-width:none;width:100%}
.mobile-hot{display:flex;flex-wrap:wrap;gap:8px}
.mobile-hot a{padding:6px 12px;border-radius:999px;background:#F2F5FA;color:var(--muted);font-size:13px}
.mobile-hot a:hover{background:var(--primary-light);color:var(--primary)}
.mobile-nav{display:flex;flex-direction:column;gap:6px}
.mobile-link{display:block;padding:12px 14px;border-radius:10px;font-size:15px;color:var(--text);border-left:3px solid transparent}
.mobile-link:hover{background:#F7F9FC;color:var(--primary)}
.mobile-link.is-active{color:var(--primary);border-left-color:var(--primary);background:var(--primary-light);font-weight:600}
body.nav-open{overflow:hidden}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;padding:16px 0;flex-wrap:nowrap;overflow:hidden}
.breadcrumb a{color:var(--primary)}
.breadcrumb a:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{color:#C3CCD9}
.breadcrumb .current{color:var(--faint);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:52%}

/* ---------- 文章布局 ---------- */
.article-main{padding-bottom:16px}
.article-layout{margin-bottom:56px}
.article-head{margin-bottom:28px}
.head-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:14px}
.text-action{
  background:none;border:1px solid var(--line);border-radius:999px;height:34px;padding:0 14px;
  font-size:13px;color:var(--muted);cursor:pointer;transition:.2s;white-space:nowrap;
}
.text-action:hover{color:var(--primary);border-color:var(--primary);background:#fff}
.article-head h1{font-size:clamp(26px,3.2vw,38px);line-height:1.32;margin-bottom:16px;letter-spacing:.2px}
.meta-row{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--faint)}
.meta-row span{display:inline-flex;align-items:center;gap:6px}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C9D2DE;display:inline-block;padding:0}

.article-body{
  max-width:760px;font-size:16px;line-height:1.85;color:var(--text);
  background:var(--card);border:1px solid var(--line-soft);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:36px 40px;
}
.article-body h2{font-size:23px;line-height:1.35;margin:36px 0 16px;padding-left:14px;border-left:4px solid var(--primary)}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:19px;margin:28px 0 12px}
.article-body h4{font-size:17px;margin:24px 0 10px;color:#3A4A5E}
.article-body p{margin:0 0 18px}
.article-body img{border-radius:12px;margin:24px 0;box-shadow:var(--shadow-1);width:100%}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;line-height:1.6}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:0}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:10px}
.article-body ul li::before{content:"";position:absolute;left:2px;top:12px;width:6px;height:6px;border-radius:50%;background:var(--primary)}
.article-body ol{counter-reset:li}
.article-body ol li{position:relative;padding-left:28px;margin-bottom:10px;counter-increment:li}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:5px;width:20px;height:20px;border-radius:50%;
  background:var(--primary-light);color:var(--primary);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--primary-light);border-left:3px solid var(--primary);
  border-radius:0 12px 12px 0;color:#3A4A5E;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{text-decoration:underline;text-underline-offset:3px}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;vertical-align:top}
.article-body th{background:#F2F5FA;font-weight:600;color:#3A4A5E}
.article-body code{background:#F2F5FA;padding:2px 6px;border-radius:6px;font-size:14px;color:var(--primary-dark)}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

/* ---------- 空状态 ---------- */
.empty-state{text-align:center;padding:32px 16px;border:1px dashed var(--line);border-radius:var(--radius-card);background:#FBFCFF}
.empty-ill{width:72px;height:72px;margin:0 auto 16px;border-radius:16px;background:#EEF2F7;color:#A9B4C4;display:flex;align-items:center;justify-content:center;font-size:28px}
.empty-title{font-size:17px;font-weight:700;color:var(--title);margin-bottom:8px}
.empty-desc{font-size:14px;color:var(--muted);margin-bottom:20px}

/* ---------- 文末区 ---------- */
.article-tags{max-width:760px;margin:28px 0 0;display:flex;align-items:center;flex-wrap:wrap;gap:10px}
.tags-label{font-size:13px;color:var(--faint)}
.chip{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);color:var(--muted);font-size:13px;transition:.2s;
}
.chip:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-light)}
.post-nav{max-width:760px;margin:28px 0 0;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.post-nav-item{
  display:block;background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius-card);
  padding:18px 20px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-nav-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#DCE6F2}
.post-nav-item .nav-label{display:block;font-size:12px;color:var(--faint);margin-bottom:6px}
.post-nav-item .nav-title{display:block;font-size:15px;font-weight:600;color:var(--title);line-height:1.5}
.post-nav-item:hover .nav-title{color:var(--primary)}
.post-nav-item.is-next{text-align:right}
.back-channel{max-width:760px;margin:24px 0 0;display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.back-channel .back-label{font-size:13px;color:var(--faint)}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:20px}
.side-card{background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-1)}
.side-title{font-size:16px;margin-bottom:16px;padding-left:12px;border-left:3px solid var(--primary);line-height:1.2}
.toc-list li{margin-bottom:10px}
.toc-list li:last-child{margin-bottom:0}
.toc-list a{font-size:14px;color:var(--muted);display:block;padding:6px 10px;border-radius:8px;border-left:2px solid transparent}
.toc-list a:hover{color:var(--primary);background:var(--primary-light);border-left-color:var(--primary)}
.rank-list li{display:flex;align-items:flex-start;gap:10px;padding:10px 0;border-bottom:1px solid var(--line-soft)}
.rank-list li:last-child{border-bottom:0;padding-bottom:0}
.rank-no{
  flex:0 0 auto;width:22px;height:22px;border-radius:6px;background:#F2F5FA;color:var(--faint);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:3px;
}
.rank-list li:nth-child(1) .rank-no{background:var(--primary);color:#fff}
.rank-list li:nth-child(2) .rank-no{background:rgba(18,165,148,.16);color:#0B7C70}
.rank-list li:nth-child(3) .rank-no{background:rgba(240,138,60,.16);color:#B65E18}
.rank-list a{font-size:14px;color:var(--text);line-height:1.6}
.rank-list a:hover{color:var(--primary)}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud a{padding:6px 12px;border-radius:999px;background:#F2F5FA;color:var(--muted);font-size:13px}
.tag-cloud a:hover{background:var(--primary-light);color:var(--primary)}

/* ---------- 相关推荐 ---------- */
.section{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:8px}
.section-sub{font-size:14px;color:var(--muted);margin:0}
.card{
  background:var(--card);border:1px solid var(--line-soft);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#DCE6F2}
.card-cover{position:relative;display:block;overflow:hidden;background:#EEF2F7;aspect-ratio:4/3}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-cover img{transform:scale(1.03)}
.cover-badge{position:absolute;left:12px;top:12px;background:rgba(255,255,255,.94);color:var(--primary);box-shadow:var(--shadow-1)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.card-title{font-size:17px;line-height:1.45;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-title a{color:var(--title)}
.card-title a:hover{color:var(--primary)}
.card-desc{font-size:14px;color:var(--muted);line-height:1.7;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12px;color:var(--faint);padding-top:8px;border-top:1px solid var(--line-soft)}
.card-foot .meta{display:inline-flex;align-items:center;gap:6px}

/* ---------- CTA ---------- */
.cta-band{background:var(--primary-light);border:1px solid #D8E5F5;border-radius:18px;padding:40px;margin:8px 0 72px}
.cta-inner{display:grid;grid-template-columns:1.5fr 1fr;gap:32px;align-items:center}
.cta-band h2{font-size:24px;margin-bottom:10px}
.cta-band p{font-size:14px;color:var(--muted)}
.cta-points{display:flex;flex-direction:column;gap:10px;margin-top:8px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:#4A5568}
.cta-points i{color:var(--accent);margin-top:5px}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.cta-note{font-size:12px;color:var(--faint);margin:0;text-align:center}

/* ---------- 页脚 ---------- */
.site-footer{background:#F2F5FA;border-top:1px solid var(--line);padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-col h3{font-size:15px;margin-bottom:16px;color:var(--title)}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14px;color:var(--muted)}
.footer-col ul li a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.footer-brand p{font-size:13px;color:var(--muted);margin:14px 0 16px;max-width:260px;line-height:1.7}
.qr-box{width:120px;height:120px;border-radius:12px;background:#E7ECF4;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;color:var(--faint);font-size:12px}
.qr-box i{font-size:26px}
.footer-contact li{display:flex;gap:8px;align-items:flex-start;font-size:14px;color:var(--muted);margin-bottom:10px}
.footer-contact i{margin-top:5px;color:var(--primary)}
.footer-bottom{margin-top:40px;border-top:1px solid var(--line);padding:20px 0;text-align:center}
.footer-bottom p{font-size:12px;color:var(--faint);margin:0}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hot-words{display:none}
  .section{padding:56px 0}
  .cta-inner{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .article-side{margin-top:32px}
}
@media (max-width:900px){
  .search-box{max-width:240px}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .topbar-inner{height:56px;gap:12px}
  .search-box,.topbar-cta{display:none}
  .nav-toggle{display:inline-flex}
  .channel-bar{display:none}
  .breadcrumb .current{max-width:44%}
  .article-body{padding:24px 18px;font-size:15px;border-radius:12px}
  .article-body h2{font-size:20px}
  .article-body h3{font-size:17px}
  .post-nav{grid-template-columns:1fr}
  .post-nav-item.is-next{text-align:left}
  .section{padding:48px 0}
  .cta-band{padding:26px 20px;margin-bottom:56px}
  .cta-band h2{font-size:20px}
  .btn{width:100%}
  .card-foot .btn,.btn-sm,.text-action{width:auto}
  .footer-grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .card:hover,.post-nav-item:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --brand:#2C5FA8;
  --brand-dark:#1D4076;
  --brand-light:#EAF1FA;
  --teal:#12A594;
  --orange:#F08A3C;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --line:#E4EAF2;
  --line-soft:#EEF2F7;
  --text:#333B47;
  --heading:#1D2B3D;
  --muted:#6B7684;
  --white:#FFFFFF;
  --r-card:14px;
  --r-img:16px;
  --r-btn:10px;
  --sh-1:0 2px 8px rgba(28,54,92,.06);
  --sh-2:0 12px 28px rgba(28,54,92,.12);
  --sp-1:8px;--sp-2:12px;--sp-3:16px;--sp-4:24px;--sp-5:32px;--sp-6:48px;--sp-7:64px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  font-size:16px;line-height:1.8;color:var(--text);background:var(--bg);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4,h5,h6{margin:0;font-family:inherit;font-weight:700;color:var(--heading);line-height:1.35;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
table{border-collapse:collapse;width:100%;margin:0;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,
.channel-link:focus-visible,.accordion-title:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;
}
::selection{background:var(--brand-light);color:var(--brand-dark);}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (min-width:1440px){.container{max-width:1280px;}}

/* ---------- 品牌与按钮 ---------- */
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--heading);font-weight:700;white-space:nowrap;}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:15px;flex:0 0 auto;box-shadow:0 2px 8px rgba(44,95,168,.28);}
.brand-name{font-size:19px;letter-spacing:.4px;color:var(--heading);}
.brand:hover .brand-name{color:var(--brand);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:all .2s ease;text-align:center;white-space:nowrap;
}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 18px rgba(29,64,118,.22);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:#fff;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);border-color:var(--brand-dark);}
.btn-ghost:active{background:#DCE8F7;}
.btn-sm{height:40px;min-height:40px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.link-more:hover{color:var(--brand-dark);}
.link-more i{font-size:12px;transition:transform .2s ease;}
.link-more:hover i{transform:translateX(3px);}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;background:var(--brand-light);color:var(--brand);line-height:1;}
.badge-accent{background:#FDEEDF;color:#B75E18;}
.badge-teal{background:#E2F4F1;color:#0B7A6E;}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);border-bottom:1px solid var(--line);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:0 8px 20px rgba(28,54,92,.08);}
.topbar-inner{display:flex;align-items:center;gap:20px;height:64px;}
.search-box{position:relative;flex:1 1 auto;max-width:320px;min-width:200px;}
.search-box i{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:13px;pointer-events:none;}
.search-box input{
  width:100%;height:40px;border-radius:999px;border:1px solid var(--line);
  background:#F5F8FC;padding:0 16px 0 40px;font-size:14px;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.search-box input::placeholder{color:#9AA5B4;}
.search-box input:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px rgba(44,95,168,.12);}
.hot-words{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.hot-title{color:var(--muted);flex:0 0 auto;}
.hot-words a{color:var(--muted);padding:5px 10px;border-radius:999px;background:#F2F6FB;font-size:13px;}
.hot-words a:hover{color:var(--brand);background:var(--brand-light);}
.topbar-cta{margin-left:auto;flex:0 0 auto;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;width:44px;height:44px;
  border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--heading);font-size:17px;cursor:pointer;
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

.channel-bar{border-top:1px solid var(--line);background:rgba(255,255,255,.92);}
.channel-inner{display:flex;align-items:center;gap:4px;height:44px;overflow-x:auto;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--muted);white-space:nowrap;border-radius:8px 8px 0 0;
}
.channel-link:hover{color:var(--brand);background:var(--brand-light);}
.channel-link.is-active{color:var(--brand);font-weight:700;}
.channel-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--brand);border-radius:2px;}

.drawer-top,.drawer-bottom{display:none;}
.nav-overlay{position:fixed;inset:0;background:rgba(15,32,60,.45);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:190;}
.nav-overlay.is-open{opacity:1;visibility:visible;}

/* ---------- 页面横幅 ---------- */
.page-hero{position:relative;overflow:hidden;padding:52px 0 56px;background:#EDF3FA;}
.page-hero .hero-media{position:absolute;inset:0;background-size:cover;background-position:center;background-repeat:no-repeat;}
.page-hero .hero-veil{position:absolute;inset:0;background:linear-gradient(100deg,rgba(255,255,255,.95) 0%,rgba(255,255,255,.86) 48%,rgba(255,255,255,.68) 100%);}
.page-hero .hero-inner{position:relative;z-index:2;}
.crumb{font-size:13px;color:var(--muted);margin-bottom:18px;display:flex;flex-wrap:wrap;align-items:center;gap:2px;}
.crumb a{color:var(--brand);}
.crumb a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px;}
.crumb .sep{color:#B7C2D0;margin:0 6px;}
.crumb .cur{color:var(--muted);}
.page-hero h1{font-size:clamp(30px,4vw,44px);line-height:1.25;font-weight:700;color:var(--heading);margin:0 0 16px;max-width:760px;}
.hero-lead{font-size:16px;line-height:1.85;color:#4A5563;max-width:640px;margin:0 0 32px;}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;max-width:780px;}
.stat{background:rgba(255,255,255,.9);border:1px solid var(--line);border-radius:var(--r-card);padding:16px 18px;box-shadow:var(--sh-1);}
.stat .num{font-size:22px;font-weight:700;color:var(--brand);line-height:1.3;font-variant-numeric:tabular-nums;}
.stat .lab{font-size:13px;color:var(--muted);margin-top:4px;line-height:1.6;}

/* ---------- 通用板块 ---------- */
.section{padding:76px 0;}
.section-alt{background:#fff;}
.section-head{max-width:740px;margin-bottom:44px;}
.section-head h2{font-size:clamp(23px,3vw,29px);line-height:1.3;font-weight:700;color:var(--heading);margin:0 0 12px;}
.section-head p{font-size:15px;color:var(--muted);}
.section-head .badge{margin-bottom:14px;}

/* ---------- 图文交替 ---------- */
.zig{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:44px 0;border-bottom:1px dashed var(--line);}
.zig:last-of-type{border-bottom:none;}
.zig-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-1);background:#EDF1F7;}
.zig-body h3{font-size:20px;font-weight:700;color:var(--heading);margin:0 0 14px;line-height:1.4;}
.zig-body .badge{margin-bottom:12px;}
.zig-list{margin:0 0 22px;}
.zig-list li{position:relative;padding-left:28px;margin-bottom:12px;font-size:15px;line-height:1.8;color:#4A5563;}
.zig-list li:last-child{margin-bottom:0;}
.zig-list li i{position:absolute;left:0;top:5px;width:16px;height:16px;display:grid;place-items:center;font-size:10px;color:var(--brand);background:var(--brand-light);border-radius:50%;}
.zig-reverse .zig-media{order:2;}
.zig-reverse .zig-body{order:1;}

/* ---------- 对照表 ---------- */
.spec-wrap{background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-img);box-shadow:var(--sh-1);overflow:hidden;}
table.spec{font-size:14px;}
.spec thead th{
  background:var(--brand-light);color:var(--brand-dark);font-size:13px;font-weight:600;text-align:left;
  padding:14px 20px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.spec tbody td{padding:15px 20px;border-bottom:1px solid var(--line-soft);color:#4A5563;vertical-align:middle;line-height:1.7;}
.spec tbody tr:last-child td{border-bottom:none;}
.spec tbody tr:hover{background:#FBFCFF;}
.spec .op{font-weight:600;color:var(--heading);}
.spec .tagv{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--brand-light);color:var(--brand);font-size:12px;font-weight:600;}

/* ---------- FAQ 手风琴 ---------- */
.faq-wrap{max-width:900px;}
.accordion{border:none;background:transparent;margin:0;}
.accordion .accordion-item{
  border:1px solid var(--line);border-radius:12px;background:#fff;margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease,background-color .2s ease,box-shadow .2s ease;
}
.accordion .accordion-item:hover{border-color:#CFDDF0;box-shadow:var(--sh-1);}
.accordion .accordion-title{
  position:relative;display:block;font-size:16px;font-weight:600;color:var(--heading);
  padding:18px 56px 18px 20px;border:none;background:transparent;line-height:1.5;
}
.accordion .accordion-title:hover{color:var(--brand);}
.accordion .accordion-title::before{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--brand);line-height:1;float:none;margin:0;transition:transform .2s ease;
}
.accordion .accordion-item.is-active{border-left:3px solid var(--brand);background:#FBFCFF;}
.accordion .accordion-item.is-active .accordion-title{color:var(--brand-dark);}
.accordion .accordion-item.is-active .accordion-title::before{content:"–";transform:translateY(-50%);}
.accordion .accordion-content{
  padding:0 24px 20px 20px;border:none;background:transparent;
  font-size:14px;line-height:1.85;color:var(--muted);
}
.accordion .accordion-content p{margin:0;}

/* ---------- 转化带 ---------- */
.cta-band{
  background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--sh-1);
  padding:44px;display:grid;grid-template-columns:1.45fr 1fr;gap:44px;align-items:center;
}
.cta-band h2{font-size:clamp(22px,2.6vw,26px);line-height:1.35;color:var(--heading);margin:0 0 12px;}
.cta-band .cta-desc{font-size:15px;color:var(--muted);margin:0 0 20px;}
.cta-points{display:flex;flex-wrap:wrap;gap:10px 22px;}
.cta-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:#4A5563;}
.cta-points li i{color:var(--teal);font-size:13px;}
.cta-actions{display:flex;flex-direction:column;gap:12px;}
.cta-note{font-size:12px;color:var(--muted);text-align:center;line-height:1.7;}

/* ---------- 页脚 ---------- */
.site-footer{background:#F2F5FA;border-top:1px solid var(--line);padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:40px;padding-bottom:44px;}
.footer-col h3{font-size:15px;font-weight:700;color:var(--heading);margin:0 0 16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14px;color:var(--muted);}
.footer-col ul li a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.footer-brand p{font-size:13px;color:var(--muted);margin:14px 0 18px;max-width:290px;line-height:1.75;}
.qr-box{
  width:120px;height:120px;border-radius:12px;background:#E9EEF6;color:var(--muted);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;font-size:12px;
}
.qr-box i{font-size:28px;color:#9AA9BC;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted);}
.footer-contact li i{color:var(--brand);margin-top:6px;font-size:13px;}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0;text-align:center;}
.footer-bottom p{margin:0;font-size:12px;color:var(--muted);line-height:1.8;}

/* ---------- 动效 ---------- */
body.js-reveal .reveal{opacity:0;transform:translateY(12px);transition:opacity .3s ease,transform .3s ease;}
body.js-reveal .reveal.is-visible{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:60px 0;}
  .zig{gap:32px;padding:36px 0;}
  .cta-band{padding:34px;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .topbar .search-box,.topbar .hot-words,.topbar .topbar-cta{display:none;}
  .nav-toggle{display:inline-flex;margin-left:auto;}
  .topbar-inner{height:56px;gap:12px;}
  .brand-mark{width:30px;height:30px;border-radius:9px;font-size:14px;}
  .brand-name{font-size:17px;}
  .channel-bar{
    position:fixed;top:0;right:0;bottom:0;width:84%;max-width:340px;height:100%;
    background:#fff;border-top:none;border-left:1px solid var(--line);z-index:200;
    transform:translateX(101%);transition:transform .25s ease;overflow-y:auto;
    padding:20px 20px 32px;display:flex;flex-direction:column;
  }
  .channel-bar.is-open{transform:translateX(0);box-shadow:-12px 0 32px rgba(28,54,92,.14);}
  .drawer-top{display:block;margin-bottom:20px;}
  .drawer-top .search-box{display:block;max-width:none;min-width:0;margin-bottom:14px;}
  .drawer-top .hot-words{display:flex;flex-wrap:wrap;gap:8px;}
  .drawer-bottom{display:block;margin-top:22px;}
  .drawer-bottom .btn{width:100%;}
  .channel-inner{flex-direction:column;align-items:stretch;height:auto;gap:2px;padding:0;overflow:visible;}
  .channel-link{height:auto;padding:13px 12px;font-size:15px;border-bottom:1px solid var(--line-soft);border-radius:8px;}
  .channel-link:hover{background:var(--brand-light);}
  .channel-link.is-active{background:var(--brand-light);border-left:3px solid var(--brand);padding-left:14px;}
  .channel-link.is-active::after{display:none;}
  .page-hero{padding:40px 0 44px;}
  .cta-band{grid-template-columns:1fr;padding:28px;gap:26px;}
  .zig{grid-template-columns:1fr;gap:24px;padding:34px 0;}
  .zig-reverse .zig-media{order:1;}
  .zig-reverse .zig-body{order:2;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:28px;}
  .hero-stats{grid-template-columns:1fr;gap:12px;}
  .hero-lead{font-size:15px;margin-bottom:24px;}
  .stat{padding:14px 16px;}
  .btn{width:100%;}
  .btn-inline{width:auto;}
  .spec-wrap{background:transparent;border:none;box-shadow:none;border-radius:0;}
  .spec thead{display:none;}
  .spec,.spec tbody,.spec tr,.spec td{display:block;width:100%;}
  .spec tbody tr{
    background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-card);
    box-shadow:var(--sh-1);margin-bottom:12px;padding:6px 0;
  }
  .spec tbody td{
    display:flex;justify-content:space-between;gap:16px;align-items:baseline;
    padding:7px 16px;border:none;text-align:right;font-size:14px;
  }
  .spec tbody td::before{
    content:attr(data-label);color:var(--muted);font-size:13px;font-weight:500;
    flex:0 0 auto;text-align:left;
  }
  .spec tbody tr:hover{background:#fff;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .accordion .accordion-title{font-size:15px;padding:16px 48px 16px 16px;}
  .accordion .accordion-content{padding:0 18px 18px 16px;}
  .cta-points{flex-direction:column;gap:10px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --primary:#2C5FA8;
  --primary-dark:#1D4076;
  --primary-light:#EAF1FA;
  --accent:#12A594;
  --accent-light:#E4F5F2;
  --warn:#F08A3C;
  --warn-light:#FDF0E4;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --line:#E4EAF2;
  --line-soft:#EEF2F7;
  --text:#333B47;
  --text-2:#6B7684;
  --text-3:#8A97A8;
  --heading:#20293A;
  --radius-card:14px;
  --radius-img:16px;
  --radius-btn:10px;
  --shadow-1:0 2px 8px rgba(28,54,92,.06);
  --shadow-2:0 12px 28px rgba(28,54,92,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  font-size:16px;line-height:1.8;color:var(--text);background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
body.drawer-open{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-dark)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--heading);font-weight:700;line-height:1.3}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 20px rgba(28,54,92,.08);background:rgba(255,255,255,.92)}
.topbar-inner{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--heading)}
.brand:hover{color:var(--heading)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:15px;
  box-shadow:0 2px 8px rgba(44,95,168,.28);
}
.brand-name{font-size:18px;font-weight:700;letter-spacing:.2px}
.search-box{
  position:relative;flex:0 1 300px;min-width:200px;height:40px;
  display:flex;align-items:center;gap:10px;
  border:1px solid var(--line);border-radius:999px;background:#fff;padding:0 16px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box i{color:var(--text-3);font-size:13px}
.search-box input{
  border:0;outline:0;background:transparent;width:100%;height:100%;
  font-size:14px;color:var(--text);
}
.search-box input::placeholder{color:#A8B2C0}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(44,95,168,.12)}
.hot-words{display:flex;align-items:center;gap:8px;flex:0 1 auto;transition:opacity .2s ease,visibility .2s ease}
.site-header.is-scrolled .hot-words{opacity:0;visibility:hidden;pointer-events:none}
.hot-title{font-size:12px;color:var(--text-3);white-space:nowrap}
.hot-words a{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;
  background:var(--primary-light);color:var(--primary);font-size:12px;white-space:nowrap;
}
.hot-words a:hover{background:#DCE8F7;color:var(--primary-dark)}
.topbar-cta{margin-left:auto;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--line);background:#fff;border-radius:10px;color:var(--primary);
  font-size:17px;cursor:pointer;transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:var(--primary-light);border-color:#CFE0F3}
.channel-bar{border-top:1px solid var(--line-soft);background:rgba(255,255,255,.96)}
.channel-inner{display:flex;align-items:center;gap:6px;height:44px;overflow-x:auto;scrollbar-width:none}
.channel-inner::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:8px;font-size:14px;color:var(--text-2);white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.channel-link:hover{color:var(--primary);background:var(--primary-light)}
.channel-link.is-active{color:var(--primary);font-weight:600}
.channel-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-6px;height:2px;
  border-radius:2px;background:var(--primary);
}

/* 移动抽屉 */
.nav-drawer{position:fixed;inset:0;z-index:200;visibility:hidden;opacity:0;transition:opacity .2s ease,visibility .2s ease}
body.drawer-open .nav-drawer{visibility:visible;opacity:1}
.drawer-mask{position:absolute;inset:0;background:rgba(15,32,60,.45)}
.drawer-panel{
  position:absolute;right:0;top:0;bottom:0;width:min(86vw,360px);background:#fff;
  transform:translateX(100%);transition:transform .28s ease;padding:22px;overflow-y:auto;
}
body.drawer-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--text-2);cursor:pointer}
.drawer-close:hover{background:var(--primary-light);color:var(--primary)}
.drawer-search{margin-bottom:18px}
.drawer-chips{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.drawer-nav a{
  display:block;padding:12px 14px;border-radius:10px;color:var(--text);font-size:15px;
  border-left:3px solid transparent;
}
.drawer-nav a:hover{background:var(--primary-light);color:var(--primary)}
.drawer-nav a.is-active{color:var(--primary);font-weight:600;border-left-color:var(--primary);background:var(--primary-light)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 2px 8px rgba(44,95,168,.22)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);background:#173462}
.btn-outline{background:#fff;color:var(--primary);border-color:#C6D8EE}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary)}
.btn-outline:active{background:#DCE8F7}
.btn:disabled,.btn.is-disabled{background:#E7ECF3;color:#98A4B3;border-color:#E7ECF3;box-shadow:none;cursor:not-allowed;transform:none}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);
  border-bottom:1px solid transparent;padding-bottom:1px;
}
.link-more:hover{border-bottom-color:var(--primary);color:var(--primary-dark);text-decoration:none}
.link-more i{font-size:12px;transition:transform .2s ease}
.link-more:hover i{transform:translateX(3px)}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;background:var(--primary-light);color:var(--primary);
}
.badge-on-img{background:rgba(255,255,255,.94);color:var(--primary);box-shadow:0 2px 6px rgba(28,54,92,.12)}
.badge-accent{background:var(--accent-light);color:#0B7B6E}
.badge-warn{background:var(--warn-light);color:#C0691F}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3);
  padding:16px 0 0;flex-wrap:wrap;
}
.breadcrumb a{color:var(--primary)}
.breadcrumb a:hover{text-decoration:underline}
.breadcrumb .sep{color:#C3CCD8}
.breadcrumb .current{color:var(--text-3)}

/* ============ 窄标题条 ============ */
.page-hero{
  background:linear-gradient(180deg,#F4F8FD 0%,#FFFFFF 100%);
  border-bottom:1px solid var(--line);
  padding:0 0 28px;
}
.page-hero-inner{
  position:relative;margin-top:16px;min-height:150px;
  display:flex;flex-direction:column;justify-content:center;gap:10px;
  padding:22px 24px 22px 28px;
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
}
.page-hero-inner::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:4px;
  border-radius:0 4px 4px 0;background:var(--primary);
}
.page-hero h1{font-size:clamp(26px,3.4vw,36px);line-height:1.25}
.page-hero-sub{font-size:15px;color:var(--text-2);max-width:720px}
.page-hero-meta{display:flex;gap:20px;flex-wrap:wrap;font-size:13px;color:var(--text-3);margin-top:2px}
.page-hero-meta span{display:inline-flex;align-items:center;gap:6px}
.page-hero-meta i{color:var(--accent)}

/* ============ 通用板块 ============ */
.section{padding:64px 0}
.section-alt{background:#fff;border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.section-head{margin-bottom:28px;max-width:760px}
.section-head h2{font-size:clamp(22px,2.4vw,28px);line-height:1.3;margin-bottom:8px}
.section-head p{font-size:15px;color:var(--text-2)}

/* ============ 筛选 chips ============ */
.filter-bar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:26px}
.filter-label{font-size:13px;color:var(--text-3);margin-right:2px}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  font-size:14px;background:#fff;border:1px solid var(--line);color:var(--text-2);
  cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.chip:hover{border-color:#C6D8EE;color:var(--primary)}
.chip.is-current{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
.chip.is-disabled{
  background:#F2F5FA;border-color:#E7ECF3;color:#A8B2C0;
  cursor:not-allowed;opacity:.85;
}
.chip.is-disabled:hover{border-color:#E7ECF3;color:#A8B2C0}

/* ============ 卡片网格 ============ */
.card-grid{margin:0 -12px}
.card-cell{padding:0 12px;margin-bottom:24px}
.card{
  position:relative;display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line-soft);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#DDE7F4}
.card-media{position:relative;overflow:hidden;background:#EEF2F7;aspect-ratio:4/3}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-media .badge{position:absolute;left:12px;top:12px;z-index:2}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:18px;font-weight:600;line-height:1.45;color:var(--heading);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{font-size:14px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--line-soft);font-size:13px;color:var(--text-3);
}
.card-foot .foot-tag{display:inline-flex;align-items:center;gap:6px}
.card-foot .foot-tag i{color:var(--accent);font-size:12px}

/* 横向大卡 */
.card-wide{flex-direction:row;align-items:stretch}
.card-wide .wide-media{position:relative;flex:0 0 46%;max-width:46%;overflow:hidden;background:#EEF2F7}
.card-wide .wide-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card-wide:hover .wide-media img{transform:scale(1.03)}
.card-wide .wide-media .badge{position:absolute;left:16px;top:16px;z-index:2}
.card-wide .wide-body{padding:28px;display:flex;flex-direction:column;gap:12px;flex:1;justify-content:center}
.card-wide h3{font-size:22px;line-height:1.4}
.card-wide p{font-size:15px;color:var(--text-2);line-height:1.75}
.mini-list{display:flex;flex-direction:column;gap:8px;margin-top:2px}
.mini-list li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--text-2);line-height:1.7}
.mini-list li i{color:var(--accent);font-size:13px;margin-top:6px;flex:0 0 auto}
.card-wide .link-more{margin-top:6px}

/* ============ 分页视觉 ============ */
.pager{
  display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;
  margin-top:16px;padding-top:28px;border-top:1px solid var(--line);
}
.pager a,.pager span{
  min-width:42px;height:42px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:10px;background:#fff;font-size:14px;color:var(--text-2);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.pager a:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light)}
.pager .is-current{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}
.pager .is-disabled{background:#F2F5FA;border-color:#E7ECF3;color:#A8B2C0;cursor:not-allowed}
.pager .is-disabled:hover{border-color:#E7ECF3;color:#A8B2C0;background:#F2F5FA}

/* ============ 更多内容入口 ============ */
.more-entry{
  margin-top:28px;padding:18px 22px;border:1px dashed #CBD9EC;border-radius:var(--radius-card);
  background:#FBFCFF;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.more-entry p{font-size:14px;color:var(--text-2)}

/* ============ 常见问答 ============ */
.faq-list{max-width:900px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#D6E3F4;box-shadow:var(--shadow-1)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;cursor:pointer;font-size:16px;font-weight:600;color:var(--heading);
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:focus-visible{outline:2px solid var(--primary);outline-offset:-3px;border-radius:12px}
.faq-icon{
  width:22px;height:22px;flex:0 0 auto;border-radius:6px;background:var(--primary-light);
  color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:11px;
  transition:transform .2s ease,background .2s ease;
}
.faq-item[open]{border-left:3px solid var(--primary);background:#FBFCFF}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:#DCE8F7}
.faq-answer{padding:0 20px 20px;font-size:14px;line-height:1.8;color:var(--text-2)}

/* ============ CTA ============ */
.cta-band{
  background:#fff;border:1px solid #D9E5F4;border-radius:18px;
  box-shadow:var(--shadow-1);padding:34px;
  display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;
}
.cta-band h2{font-size:clamp(21px,2.3vw,26px);margin-bottom:10px}
.cta-band .cta-desc{font-size:15px;color:var(--text-2);margin-bottom:16px}
.cta-points{display:flex;flex-direction:column;gap:8px}
.cta-points li{display:flex;gap:10px;font-size:14px;color:var(--text-2);align-items:flex-start}
.cta-points li i{color:var(--accent);font-size:13px;margin-top:6px}
.cta-actions{display:flex;flex-direction:column;gap:12px}
.cta-actions .note{font-size:12px;color:var(--text-3);text-align:center}

/* ============ 页脚 ============ */
.site-footer{background:#F2F5FA;border-top:1px solid var(--line);padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-col h3{font-size:15px;font-weight:600;color:var(--heading);margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--text-2)}
.footer-col a:hover{color:var(--primary);text-decoration:underline}
.footer-brand p{font-size:13px;color:var(--text-2);margin:14px 0 16px;max-width:250px;line-height:1.7}
.qr-box{
  width:120px;height:120px;border-radius:12px;background:#E9EEF6;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  color:#8A97A8;font-size:12px;
}
.qr-box i{font-size:28px}
.footer-contact li{display:flex;gap:8px;font-size:14px;color:var(--text-2);align-items:flex-start;line-height:1.7}
.footer-contact li i{color:var(--primary);margin-top:6px;font-size:13px}
.footer-bottom{
  margin-top:40px;border-top:1px solid var(--line);padding:18px 0 22px;
  text-align:center;font-size:12px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .topbar-inner{gap:14px}
  .hot-words{display:none}
  .search-box{flex:1 1 auto;min-width:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{grid-template-columns:1fr;gap:24px}
  .card-wide{flex-direction:column}
  .card-wide .wide-media{flex:0 0 auto;max-width:100%;aspect-ratio:16/9}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .topbar-inner{height:56px;gap:12px}
  .brand-mark{width:30px;height:30px;border-radius:9px;font-size:13px}
  .brand-name{font-size:16px}
  .search-box{display:none}
  .topbar-cta{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .channel-inner{height:42px;gap:2px}
  .channel-link{padding:0 12px;font-size:13.5px}
  .channel-link.is-active::after{left:12px;right:12px}
  .breadcrumb{padding-top:12px}
  .section{padding:48px 0}
  .page-hero{padding-bottom:22px}
  .page-hero-inner{min-height:auto;padding:18px 18px 18px 22px;margin-top:12px}
  .page-hero h1{font-size:24px}
  .page-hero-sub{font-size:14px}
  .card-cell{padding:0 8px;margin-bottom:16px}
  .card-grid{margin:0 -8px}
  .card-body{padding:16px}
  .card-title{font-size:16.5px}
  .card-wide .wide-body{padding:20px}
  .card-wide h3{font-size:19px}
  .btn{width:100%}
  .btn.btn-sm{width:auto}
  .pager a,.pager span{min-width:38px;height:38px;padding:0 10px;font-size:13px}
  .more-entry{padding:16px}
  .cta-band{padding:22px;border-radius:14px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{margin-top:28px}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* roulang page: category3 */
:root{
  --primary:#2C5FA8;
  --primary-dark:#1D4076;
  --primary-light:#EAF1FA;
  --accent:#12A594;
  --warn:#F08A3C;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --line:#E4EAF2;
  --line-soft:#EEF2F7;
  --text:#333B47;
  --muted:#6B7684;
  --white:#FFFFFF;
  --radius-card:14px;
  --radius-img:16px;
  --radius-btn:10px;
  --shadow-1:0 2px 8px rgba(28,54,92,.06);
  --shadow-2:0 12px 28px rgba(28,54,92,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
.num,.stat-value,.step-num{font-variant-numeric:tabular-nums;}

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

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(255,255,255,.92);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 20px rgba(28,54,92,.08);}
.topbar-inner{
  display:flex;
  align-items:center;
  gap:16px;
  min-height:64px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--text);
}
.brand:hover{color:var(--text);}
.brand-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:var(--primary);
  color:#fff;
  font-size:16px;
  box-shadow:var(--shadow-1);
}
.brand-name{
  font-size:18px;
  font-weight:700;
  letter-spacing:.5px;
  white-space:nowrap;
}
.search-box{
  position:relative;
  display:flex;
  align-items:center;
  width:280px;
  max-width:100%;
  flex:0 1 auto;
}
.search-box i{
  position:absolute;
  left:16px;
  font-size:14px;
  color:var(--muted);
  pointer-events:none;
}
.search-box input{
  width:100%;
  height:40px;
  padding:0 16px 0 40px;
  border:1px solid var(--line);
  border-radius:999px;
  background:#F7F9FC;
  font-size:14px;
  color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-box input::placeholder{color:#9AA5B4;}
.search-box input:focus{
  outline:none;
  background:#fff;
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(44,95,168,.12);
}
.hot-words{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1 1 auto;
  min-width:0;
  overflow:hidden;
}
.hot-title{
  font-size:12px;
  color:var(--muted);
  padding:2px 8px;
  border-radius:999px;
  background:var(--primary-light);
  white-space:nowrap;
}
.hot-words a{
  font-size:13px;
  color:var(--muted);
  padding:3px 9px;
  border-radius:999px;
  white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.hot-words a:hover{color:var(--primary);background:var(--primary-light);}
.topbar-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  color:var(--text);
  cursor:pointer;
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{background:var(--primary-light);border-color:var(--primary);color:var(--primary);}
.nav-toggle:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

.channel-bar{
  border-top:1px solid var(--line);
  background:rgba(255,255,255,.92);
}
.channel-inner{
  display:flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  overflow-x:auto;
  scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:44px;
  padding:0 14px;
  font-size:15px;
  color:var(--text);
  white-space:nowrap;
  border-radius:8px;
  transition:color .2s ease,background .2s ease;
}
.channel-link:hover{color:var(--primary);background:var(--primary-light);}
.channel-link.is-active{color:var(--primary);font-weight:600;}
.channel-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--primary);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  height:46px;
  padding:0 22px;
  border:1px solid transparent;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;border-color:var(--primary);color:var(--primary);}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);}
.btn-light{background:#fff;border-color:#fff;color:var(--primary-dark);}
.btn-light:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-1px);}
.btn-sm{height:38px;min-height:38px;padding:0 16px;font-size:14px;border-radius:999px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  border-bottom:1px solid transparent;
  padding-bottom:2px;
  text-decoration:underline;
  text-underline-offset:3px;
}
.text-link:hover{color:var(--primary-dark);text-decoration-color:var(--primary-dark);}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  line-height:1.6;
  padding:16px 0;
  color:var(--muted);
  flex-wrap:wrap;
}
.crumb a{color:var(--primary);}
.crumb a:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px;}
.crumb .sep{color:#B9C3D0;}
.crumb .current{color:var(--muted);}

/* ---------- 分类页3 Hero：主色实底反白带 ---------- */
.cat-hero{
  background:var(--primary);
  color:#fff;
}
.cat-hero .crumb{padding:24px 0 0;color:rgba(255,255,255,.8);}
.cat-hero .crumb a{color:rgba(255,255,255,.92);}
.cat-hero .crumb a:hover{color:#fff;}
.cat-hero .crumb .sep{color:rgba(255,255,255,.5);}
.cat-hero .crumb .current{color:rgba(255,255,255,.8);}
.cat-hero-inner{
  min-height:230px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding:20px 0 44px;
}
.cat-hero h1{
  font-size:clamp(30px,4vw,44px);
  line-height:1.25;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
}
.cat-hero .hero-lead{
  font-size:16px;
  line-height:1.8;
  color:rgba(255,255,255,.88);
  max-width:640px;
  margin-bottom:24px;
}
.cat-hero .hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cat-hero .hero-note{
  margin-top:16px;
  font-size:13px;
  color:rgba(255,255,255,.75);
}

/* ---------- 板块 ---------- */
.section{padding:80px 0;}
.section-alt{background:#fff;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-title{
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.3;
  font-weight:700;
  color:var(--text);
  margin-bottom:10px;
}
.section-title .accent{color:var(--primary);}
.section-sub{font-size:15px;color:var(--muted);}

/* ---------- 流程条 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.step{
  position:relative;
  background:var(--card);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:24px 20px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.step-num{
  width:28px;height:28px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:999px;
  background:var(--primary-light);
  color:var(--primary);
  font-size:14px;
  font-weight:700;
  margin-bottom:14px;
}
.step h3{
  font-size:18px;
  line-height:1.4;
  font-weight:600;
  color:var(--text);
  margin-bottom:8px;
}
.step p{font-size:14px;line-height:1.8;color:var(--muted);}

/* ---------- 双栏图文 ---------- */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
}
.split h2{
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.3;
  font-weight:700;
  margin-bottom:14px;
}
.split > div > p{font-size:15px;line-height:1.8;color:var(--muted);margin-bottom:20px;}
.point-list{margin-bottom:24px;}
.point-list li{
  position:relative;
  padding-left:26px;
  font-size:15px;
  line-height:1.8;
  color:var(--text);
  margin-bottom:12px;
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;top:10px;
  width:14px;height:14px;
  border-radius:4px;
  background:var(--primary-light);
  border:1px solid rgba(44,95,168,.35);
}
.point-list li:last-child{margin-bottom:0;}
.split-media{
  border-radius:var(--radius-img);
  overflow:hidden;
  box-shadow:var(--shadow-2);
  background:#E9EEF6;
}
.split-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  aspect-ratio:4/3;
  transition:transform .3s ease;
}
.split-media:hover img{transform:scale(1.03);}

/* ---------- 配置清单 ---------- */
.check-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.check-card{
  background:var(--card);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:24px 20px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.check-card .icon-line{
  width:24px;height:24px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--accent);
  font-size:20px;
  margin-bottom:14px;
}
.check-card h3{font-size:17px;font-weight:600;line-height:1.4;margin-bottom:8px;}
.check-card p{font-size:14px;line-height:1.8;color:var(--muted);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  line-height:1;
  background:var(--primary-light);
  color:var(--primary);
  white-space:nowrap;
}
.tag.tag-accent{background:rgba(18,165,148,.12);color:#0B7A6D;}
.tag.tag-warn{background:rgba(240,138,60,.14);color:#B75F1C;}

/* ---------- FAQ ---------- */
.faq-group{margin-bottom:32px;}
.faq-group:last-child{margin-bottom:0;}
.faq-group-title{
  font-size:18px;
  font-weight:600;
  color:var(--text);
  margin-bottom:16px;
  display:flex;
  align-items:center;
  gap:10px;
}
.faq-group-title::before{
  content:"";
  width:4px;height:18px;
  border-radius:2px;
  background:var(--primary);
}
.faq-wrap{max-width:900px;}
.faq-item{
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  margin-bottom:12px;
  overflow:hidden;
  transition:background .2s ease,border-color .2s ease;
}
.faq-item[open]{
  background:#FBFCFF;
  border-left:3px solid var(--primary);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:16px 48px 16px 18px;
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  color:var(--text);
  position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  position:absolute;
  right:18px;top:50%;
  transform:translateY(-50%);
  font-size:20px;
  color:var(--primary);
  transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−";}
.faq-item summary:hover{color:var(--primary);}
.faq-item summary:focus-visible{outline:2px solid var(--primary);outline-offset:-2px;}
.faq-body{
  padding:0 18px 18px;
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
}

/* ---------- 咨询表单 ---------- */
.contact-band{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:start;
}
.contact-info h2{
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.3;
  font-weight:700;
  margin-bottom:14px;
}
.contact-info > p{font-size:15px;line-height:1.8;color:var(--muted);margin-bottom:20px;}
.contact-rows{margin-top:24px;border-top:1px solid var(--line);padding-top:20px;}
.contact-rows li{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:var(--muted);
  margin-bottom:12px;
}
.contact-rows li:last-child{margin-bottom:0;}
.contact-rows i{color:var(--primary);font-size:15px;width:18px;text-align:center;}
.form-card{
  background:var(--card);
  border:1px solid var(--line-soft);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:28px;
}
.form-card h3{
  font-size:18px;
  font-weight:700;
  color:var(--text);
  margin-bottom:20px;
}
.field{margin-bottom:16px;}
.field label{
  display:block;
  font-size:13px;
  color:var(--muted);
  margin-bottom:6px;
}
.field input,
.field select,
.field textarea{
  width:100%;
  height:44px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:10px;
  background:#fff;
  font-size:15px;
  color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{
  height:auto;
  min-height:110px;
  padding:12px 14px;
  line-height:1.7;
  resize:vertical;
}
.field input::placeholder,
.field textarea::placeholder{color:#9AA5B4;}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(44,95,168,.12);
}
.field.has-error input,
.field.has-error textarea{border-color:#D9534F;}
.field .error-text{display:block;font-size:12px;color:#D9534F;margin-top:6px;}
.form-note{font-size:12px;color:var(--muted);margin-top:12px;line-height:1.7;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#F2F5FA;
  border-top:1px solid var(--line);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
  margin:14px 0 18px;
  max-width:280px;
}
.qr-box{
  width:120px;height:120px;
  border-radius:12px;
  background:#E6EBF3;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:6px;
  color:var(--muted);
  font-size:12px;
}
.qr-box i{font-size:28px;color:#B9C3D0;}
.footer-col h3{
  font-size:15px;
  font-weight:600;
  color:var(--text);
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{
  font-size:14px;
  color:var(--muted);
}
.footer-col ul li a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:var(--muted);
}
.footer-contact i{margin-top:4px;color:var(--primary);}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0;
  text-align:center;
}
.footer-bottom p{font-size:12px;color:var(--muted);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hot-words{display:none;}
  .search-box{width:220px;}
  .nav-toggle{display:inline-flex;}
  .channel-bar{display:none;border-top:1px solid var(--line);}
  .channel-bar.is-open{display:block;}
  .channel-inner{
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px 24px 16px;
    overflow:visible;
  }
  .channel-link{
    height:44px;
    border-radius:8px;
    padding:0 12px;
    border-left:3px solid transparent;
  }
  .channel-link.is-active{
    background:var(--primary-light);
    border-left-color:var(--primary);
  }
  .channel-link.is-active::after{display:none;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .check-grid{grid-template-columns:repeat(2,1fr);}
  .split,.contact-band{grid-template-columns:1fr;gap:32px;}
  .split-media{order:2;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:64px 0;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .topbar-inner{flex-wrap:wrap;padding:10px 0;gap:10px;min-height:56px;}
  .brand-name{font-size:17px;}
  .search-box{order:3;width:100%;flex:1 1 100%;}
  .topbar-cta{order:2;margin-left:auto;}
  .topbar-cta.btn-sm{height:40px;min-height:40px;padding:0 14px;font-size:14px;}
  .nav-toggle{order:2;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:28px;}
  .cat-hero-inner{min-height:200px;padding:12px 0 36px;}
  .cat-hero .hero-actions .btn{width:100%;}
  .steps{grid-template-columns:1fr;gap:0;}
  .step{
    background:transparent;
    border:0;
    box-shadow:none;
    padding:0 0 28px 56px;
    border-radius:0;
  }
  .step:hover{transform:none;box-shadow:none;}
  .step::after{
    content:"";
    position:absolute;
    left:14px;top:34px;bottom:0;
    width:2px;
    background:var(--line);
  }
  .step:last-child::after{display:none;}
  .step-num{position:absolute;left:0;top:0;margin:0;}
  .check-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .form-card{padding:22px;}
  .faq-item summary{font-size:15px;padding:14px 44px 14px 16px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}