/* roulang page: index */
:root{
  --primary:#1B6CA8;
  --primary-dark:#12507F;
  --primary-soft:#E8F1F8;
  --accent:#FF6A3D;
  --accent-dark:#E85526;
  --teal:#178A7A;
  --amber:#C97A16;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --border:#E3E9F2;
  --text:#1F2937;
  --muted:#5B6B7F;
  --disabled:#9AA7B6;
  --success:#1E9E6A;
  --warn:#D98324;
  --danger:#D64545;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-badge:999px;
  --sd-1:0 2px 8px rgba(16,42,67,.06),0 12px 28px rgba(16,42,67,.06);
  --sd-2:0 18px 40px rgba(16,42,67,.12);
  --ease:220ms cubic-bezier(.2,.7,.3,1);
  --font:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--primary-dark);}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,textarea,select{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--light{background:#fff;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:26px;padding:0 12px;margin-bottom:16px;
  font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--primary-dark);background:var(--primary-soft);
  border-radius:var(--r-badge);
}
.eyebrow--accent{color:var(--accent-dark);background:#FFF0EA;}
.h1{font-size:clamp(28px,4vw,42px);line-height:1.28;font-weight:700;letter-spacing:-.01em;}
.h2{font-size:clamp(22px,3vw,30px);line-height:1.32;font-weight:600;color:var(--primary-dark);}
.h3{font-size:20px;line-height:1.4;font-weight:600;}
.lead{font-size:16px;line-height:1.85;color:var(--muted);}
.small{font-size:14px;line-height:1.6;color:var(--muted);}
.tiny{font-size:13px;line-height:1.6;color:var(--muted);}
.section-sub{margin-top:14px;font-size:16px;line-height:1.85;color:var(--muted);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  font-size:15px;font-weight:600;line-height:1;
  border-radius:var(--r-btn);
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),color var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(255,106,61,.28);}
.btn-primary:hover,.btn-primary:focus{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,106,61,.32);}
.btn-secondary{background:#fff;color:var(--primary-dark);border:1px solid #C9D8E6;}
.btn-secondary:hover,.btn-secondary:focus{color:var(--primary-dark);border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--sd-1);}
.btn-ghost{background:var(--primary);color:#fff;}
.btn-ghost:hover,.btn-ghost:focus{background:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sd-1);}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;transform:none;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);}
.text-link .arrow{transition:transform var(--ease);}
.text-link:hover .arrow{transform:translateX(4px);}

/* ============ 徽章 / 标签 ============ */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-badge);font-size:12px;font-weight:600;line-height:1;background:var(--primary-soft);color:var(--primary-dark);}
.badge-teal{background:#E4F4F1;color:var(--teal);}
.badge-amber{background:#FBF0DF;color:var(--amber);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  transition:box-shadow var(--ease),border-color var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{border-bottom-color:var(--border);box-shadow:0 6px 22px rgba(16,42,67,.07);}
.nav-wrap{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  height:72px;gap:16px;
}
.nav-side{display:flex;align-items:center;gap:28px;}
.nav-side--right{justify-content:flex-end;}
.nav-link{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;font-weight:500;color:var(--text);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-link:hover{color:var(--primary-dark);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--primary-dark);font-weight:600;}
.brand{display:inline-flex;align-items:center;gap:10px;justify-self:center;}
.brand-mark{
  width:28px;height:28px;border-radius:8px;
  background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);
  display:flex;align-items:center;justify-content:center;flex:0 0 28px;
}
.brand-mark svg{width:16px;height:16px;stroke:#fff;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{font-size:18px;font-weight:700;color:var(--primary-dark);letter-spacing:-.01em;}
.nav-cta{height:42px;padding:0 20px;font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  align-items:center;justify-content:center;border:1px solid var(--border);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--primary-dark);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary-dark);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

.drawer{
  position:fixed;inset:0;z-index:80;background:rgba(16,42,67,.45);
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
}
.drawer.is-open{opacity:1;visibility:visible;}
.drawer-panel{
  position:absolute;top:0;left:0;right:0;background:#fff;
  padding:20px 20px 28px;transform:translateY(-12px);transition:transform var(--ease);
  border-radius:0 0 20px 20px;max-height:100%;overflow:auto;
}
.drawer.is-open .drawer-panel{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px;}
.drawer-close{width:44px;height:44px;border-radius:10px;border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--primary-dark);font-size:20px;line-height:1;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  padding:14px 4px;font-size:16px;font-weight:500;color:var(--text);
  border-bottom:1px solid var(--border);
}
.drawer-nav a.is-active{color:var(--primary-dark);font-weight:600;}
.drawer-cta{margin-top:20px;}

/* ============ Hero ============ */
.hero{background:var(--bg);padding:64px 0 88px;position:relative;overflow:hidden;}
.hero-grid{row-gap:40px;}
.hero-copy{padding-top:8px;}
.hero .h1{margin-bottom:18px;}
.hero-sub{font-size:17px;line-height:1.85;color:var(--muted);max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-trust{display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:32px;}
.trust-item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);}
.trust-item svg{width:20px;height:20px;stroke:var(--primary);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;flex:0 0 20px;}
.hero-visual{position:relative;}
.hero-img{
  width:100%;height:380px;object-fit:cover;border-radius:var(--r-card);
  border:1px solid var(--border);box-shadow:var(--sd-1);
}
.hero-float{
  position:absolute;left:18px;bottom:18px;width:min(272px,88%);
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  box-shadow:var(--sd-2);padding:18px 20px;
}
.hero-float-title{font-size:13px;font-weight:600;color:var(--primary-dark);letter-spacing:.04em;margin-bottom:12px;}
.hero-float li{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--muted);padding:5px 0;}
.hero-float li b{
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 22px;
  width:22px;height:22px;border-radius:50%;background:var(--primary-soft);
  color:var(--primary-dark);font-size:12px;font-weight:700;
}

/* ============ 卖点三连 ============ */
.value-left{position:sticky;top:104px;}
.value-index{display:flex;flex-direction:column;gap:18px;}
.value-index-item{display:flex;align-items:baseline;gap:14px;padding-bottom:18px;border-bottom:1px solid var(--border);}
.value-index-item:last-child{border-bottom:0;padding-bottom:0;}
.value-index-item b{font-size:22px;font-weight:700;color:var(--primary);letter-spacing:-.02em;}
.value-index-item span{font-size:15px;color:var(--muted);}
.value-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start;}
.value-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sd-1);
  transition:transform var(--ease),box-shadow var(--ease);
}
.value-card:hover{transform:translateY(-4px);box-shadow:var(--sd-2);}
.value-card--dark{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;}
.value-card--dark .h3{color:#fff;}
.value-card--dark p{color:rgba(255,255,255,.82);}
.value-card--dark .text-link{color:#fff;}
.value-card:nth-child(2){margin-top:28px;}
.value-card:nth-child(3){margin-top:14px;}
.value-icon{
  width:44px;height:44px;border-radius:12px;background:var(--primary-soft);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.value-icon svg{width:22px;height:22px;stroke:var(--primary);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.value-card--dark .value-icon{background:rgba(255,255,255,.14);}
.value-card--dark .value-icon svg{stroke:#fff;}
.value-card .h3{margin-bottom:10px;}
.value-card p{font-size:14px;line-height:1.8;color:var(--muted);margin-bottom:16px;}

/* ============ 场景演示 ============ */
.scene-tabs{display:inline-flex;gap:6px;padding:6px;background:#fff;border:1px solid var(--border);border-radius:12px;margin-bottom:32px;}
.scene-tab{
  height:40px;padding:0 20px;border-radius:8px;font-size:14px;font-weight:600;
  color:var(--muted);transition:background-color var(--ease),color var(--ease);
}
.scene-tab:hover{color:var(--primary-dark);}
.scene-tab.is-active{background:var(--primary);color:#fff;}
.scene-panel{display:none;}
.scene-panel.is-active{display:block;}
.steps{position:relative;padding-left:0;}
.step-item{display:flex;gap:18px;position:relative;padding-bottom:30px;}
.step-item:last-child{padding-bottom:0;}
.step-item::before{
  content:"";position:absolute;left:19px;top:44px;bottom:2px;width:2px;background:var(--border);
}
.step-item:last-child::before{display:none;}
.step-num{
  flex:0 0 40px;width:40px;height:40px;border-radius:50%;
  background:var(--primary-soft);color:var(--primary-dark);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
  position:relative;z-index:1;
}
.step-body .h3{margin-bottom:8px;}
.step-body p{font-size:14px;line-height:1.8;color:var(--muted);}
.scene-visual{position:relative;}
.scene-img{
  width:100%;height:420px;object-fit:cover;border-radius:var(--r-card);
  border:1px solid var(--border);box-shadow:var(--sd-1);
}
.scene-bar{
  position:absolute;left:0;right:0;bottom:0;padding:16px 20px;
  background:rgba(18,80,127,.88);color:#fff;font-size:14px;
  border-radius:0 0 var(--r-card) var(--r-card);
  display:flex;align-items:center;gap:10px;
}
.scene-bar svg{width:18px;height:18px;stroke:#fff;fill:none;stroke-width:1.6;flex:0 0 18px;stroke-linecap:round;stroke-linejoin:round;}

/* ============ 数据深色区块 ============ */
.band{background:var(--primary-dark);color:#fff;padding:72px 0;}
.band .h2{color:#fff;}
.band .section-sub{color:rgba(255,255,255,.78);}
.band-grid{row-gap:24px;}
.band-card{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-card);padding:24px;height:100%;
  transition:transform var(--ease),background-color var(--ease);
}
.band-card:hover{transform:translateY(-4px);background:rgba(255,255,255,.11);}
.band-num{font-size:34px;font-weight:700;line-height:1.1;color:var(--accent);letter-spacing:-.02em;}
.band-label{margin-top:10px;font-size:15px;font-weight:600;color:#fff;}
.band-desc{margin-top:6px;font-size:13px;line-height:1.7;color:rgba(255,255,255,.7);}
.band-strip{
  margin-top:32px;padding:18px 24px;border-radius:12px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:14px 32px;align-items:center;
}
.band-strip li{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.85);}
.band-strip li svg{width:18px;height:18px;stroke:var(--accent);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}

/* ============ 最新信息 ============ */
.latest-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px;}
.cards-row > .cell{margin-bottom:24px;}
.post-card{
  display:flex;flex-direction:column;height:100%;background:#fff;
  border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sd-1);transition:transform var(--ease),box-shadow var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sd-2);}
.post-cover{display:block;padding:8px 8px 0;}
.post-cover img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);
  border:1px solid var(--border);
}
.post-body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1;}
.post-meta-top{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.post-meta-top time{font-size:12px;color:var(--muted);}
.post-title{font-size:17px;line-height:1.5;font-weight:600;margin-bottom:10px;}
.post-title a{color:var(--text);}
.post-title a:hover{color:var(--primary-dark);}
.post-excerpt{font-size:14px;line-height:1.75;color:var(--muted);margin-bottom:16px;flex:1;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-foot{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px solid var(--border);
}
.empty-state{
  text-align:center;padding:56px 24px;background:#fff;
  border:1px dashed var(--border);border-radius:var(--r-card);
}
.empty-state svg{width:40px;height:40px;stroke:var(--disabled);fill:none;stroke-width:1.5;margin:0 auto 14px;stroke-linecap:round;stroke-linejoin:round;}
.empty-state .h3{margin-bottom:8px;}
.empty-state p{font-size:14px;color:var(--muted);margin-bottom:16px;}

/* ============ 社会认同 ============ */
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--border);border-radius:var(--r-card);background:#fff;overflow:hidden;box-shadow:var(--sd-1);}
.stat-cell{padding:28px 20px;text-align:center;border-right:1px solid var(--border);}
.stat-cell:last-child{border-right:0;}
.stat-num{font-size:32px;font-weight:700;color:var(--primary);line-height:1.1;letter-spacing:-.02em;}
.stat-label{margin-top:8px;font-size:14px;color:var(--muted);}
.quote-grid{margin-top:36px;}
.quote-card{
  height:100%;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sd-1);transition:transform var(--ease),box-shadow var(--ease);
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--sd-2);}
.quote-grid > .cell:nth-child(2) .quote-card{margin-top:24px;}
.quote-grid > .cell:nth-child(3) .quote-card{margin-top:12px;}
.quote-mark{font-size:30px;line-height:1;color:var(--primary);font-weight:700;margin-bottom:12px;}
.quote-card p{font-size:15px;line-height:1.8;color:var(--text);margin-bottom:16px;}
.quote-by{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;}
.quote-by i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;background:#fff;border:1px solid var(--border);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sd-1);}
.faq-item{border-bottom:1px solid var(--border);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;
  min-height:56px;padding:16px 24px;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);
  transition:color var(--ease),background-color var(--ease);
}
.faq-q:hover{color:var(--primary-dark);background:#FBFDFF;}
.faq-icon{position:relative;flex:0 0 18px;width:18px;height:18px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-item.is-open .faq-q{color:var(--primary-dark);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms cubic-bezier(.2,.7,.3,1);}
.faq-a-inner{
  padding:0 24px 22px 24px;font-size:15px;line-height:1.85;color:var(--muted);
  border-left:3px solid var(--primary);margin-left:24px;padding-left:18px;margin-bottom:20px;
}

/* ============ 底部 CTA ============ */
.cta-band{background:var(--primary-soft);border-radius:20px;padding:44px 40px;}
.cta-grid{align-items:center;row-gap:26px;}
.cta-band .h2{margin-bottom:10px;}
.cta-band p{font-size:15px;line-height:1.8;color:var(--muted);}
.subscribe{display:flex;gap:12px;}
.field{
  width:100%;height:48px;padding:0 14px;border:1px solid var(--border);border-radius:var(--r-btn);
  background:#fff;color:var(--text);transition:border-color var(--ease),box-shadow var(--ease);
}
.field::placeholder{color:var(--disabled);}
.field:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(27,108,168,.15);}
.form-note{margin-top:10px;font-size:13px;color:var(--muted);}

/* ============ 页脚 ============ */
.site-footer{background:#fff;border-top:1px solid var(--border);padding:64px 0 0;margin-top:0;}
.footer-grid{row-gap:32px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-about{font-size:14px;line-height:1.8;color:var(--muted);max-width:320px;}
.footer-title{font-size:14px;font-weight:600;color:var(--primary-dark);margin-bottom:16px;letter-spacing:.02em;}
.footer-list li{margin-bottom:10px;}
.footer-list a{font-size:14px;color:var(--muted);}
.footer-list a:hover{color:var(--primary-dark);}
.footer-contact{font-size:14px;color:var(--muted);line-height:1.9;}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--border);
  padding:22px 0 96px;display:flex;flex-wrap:wrap;gap:12px 24px;
  align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:var(--muted);}
.footer-social{display:flex;gap:12px;}
.footer-social a{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.footer-social a:hover{transform:translateY(-2px);border-color:var(--primary);box-shadow:var(--sd-1);}
.footer-social svg{width:18px;height:18px;stroke:var(--primary-dark);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}

/* ============ 底部固定转化条 ============ */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:#fff;border-top:1px solid var(--border);
  box-shadow:0 -8px 24px rgba(16,42,67,.10);
  padding:10px 16px;display:none;align-items:center;gap:14px;
  transform:translateY(100%);transition:transform var(--ease);
}
.sticky-bar.is-visible{display:flex;transform:translateY(0);}
.sticky-text{flex:1;font-size:14px;font-weight:600;color:var(--primary-dark);}
.sticky-close{
  width:36px;height:36px;flex:0 0 36px;border-radius:10px;border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:18px;line-height:1;
}
.sticky-close:hover{color:var(--danger);border-color:#F2C9C9;}

/* ============ 响应式 ============ */
@media (min-width:1024px){
  .sticky-bar{
    left:auto;right:24px;bottom:24px;width:320px;border-radius:16px;
    border:1px solid var(--border);padding:16px;box-shadow:var(--sd-2);
    flex-wrap:wrap;
  }
  .sticky-bar .sticky-text{flex:1 1 100%;font-size:15px;}
  .sticky-bar .btn{flex:1;}
  .footer-bottom{padding-bottom:64px;}
}
@media (max-width:1023px){
  .nav-side{display:none;}
  .nav-toggle{display:flex;}
  .nav-wrap{grid-template-columns:auto 1fr auto;height:60px;}
  .brand{justify-self:center;}
  .section{padding:64px 0;}
  .hero-img{height:320px;}
  .value-cards{grid-template-columns:1fr;gap:18px;}
  .value-card:nth-child(2),.value-card:nth-child(3){margin-top:0;}
  .value-left{position:static;margin-bottom:28px;}
  .value-index{flex-direction:row;flex-wrap:wrap;gap:12px 28px;}
  .value-index-item{border-bottom:0;padding-bottom:0;}
  .stat-row{grid-template-columns:repeat(2,1fr);}
  .stat-cell:nth-child(2){border-right:0;}
  .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-bottom:1px solid var(--border);}
  .scene-img{height:340px;}
  .cta-band{padding:32px 24px;}
  .subscribe{flex-direction:column;}
}
@media (max-width:640px){
  .section{padding:48px 0;}
  .grid-container{padding-left:16px;padding-right:16px;}
  .hero{padding:40px 0 56px;}
  .hero-img{height:240px;}
  .hero-float{position:static;width:100%;margin-top:16px;box-shadow:var(--sd-1);}
  .hero-actions .btn{width:100%;}
  .scene-img{height:240px;}
  .stat-row{grid-template-columns:1fr;}
  .stat-cell{border-right:0;border-bottom:1px solid var(--border);}
  .stat-cell:last-child{border-bottom:0;}
  .faq-a-inner{margin-left:12px;padding-left:14px;}
  .footer-bottom{padding-bottom:104px;}
  .sticky-bar{padding:10px 12px;}
  .sticky-text{font-size:13px;}
}

/* roulang page: category1 */
:root{
  --primary:#1B6CA8;
  --primary-dark:#12507F;
  --primary-soft:#E8F1F8;
  --accent:#FF6A3D;
  --accent-hover:#E85526;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --border:#E3E9F2;
  --text:#1F2937;
  --muted:#5B6B7F;
  --disabled:#9AA7B6;
  --success:#1E9E6A;
  --warn:#D98324;
  --danger:#D64545;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow:0 2px 8px rgba(16,42,67,.06),0 12px 28px rgba(16,42,67,.06);
  --shadow-hover:0 18px 40px rgba(16,42,67,.12);
  --ease:220ms cubic-bezier(.2,.7,.3,1);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--primary-dark);}
p{margin:0 0 var(--sp-4);}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:.2px;}
h1{font-size:clamp(28px,4vw,42px);line-height:1.28;}
h2{font-size:clamp(22px,3vw,30px);line-height:1.32;font-weight:600;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
.section{padding:var(--sp-9) 0;}
.section--tight{padding:var(--sp-8) 0;}
.section-head{max-width:760px;margin-bottom:var(--sp-6);}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:1.6px;
  color:var(--primary);text-transform:uppercase;margin-bottom:var(--sp-3);
}
.section-head p{margin-top:var(--sp-3);color:var(--muted);font-size:16px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:12px 24px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;background:var(--primary);color:#fff;
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease),color var(--ease),border-color var(--ease);
  text-decoration:none;
}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);color:#fff;background:var(--primary-dark);}
.btn:active{transform:translateY(0);}
.btn-accent{background:var(--accent);}
.btn-accent:hover{background:var(--accent-hover);color:#fff;}
.btn-outline{background:#fff;color:var(--primary);border-color:#C9D8E6;}
.btn-outline:hover{background:#fff;color:var(--primary-dark);border-color:var(--primary);}
.btn-ghost{background:var(--primary-soft);color:var(--primary-dark);}
.btn-ghost:hover{background:#DCEBF7;color:var(--primary-dark);}
.btn-sm{height:40px;padding:8px 16px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;transform:none;}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;color:var(--primary);}
.link-arrow svg{width:16px;height:16px;transition:transform var(--ease);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- Badge ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;background:var(--primary-soft);color:var(--primary-dark);line-height:1;
}
.badge--accent{background:#FFEDE6;color:#B8431B;}
.badge--teal{background:#E2F3F0;color:#0F6A5E;}
.badge--amber{background:#FBF0DE;color:#9A5C0F;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid transparent;
  transition:box-shadow var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--border);box-shadow:0 4px 18px rgba(16,42,67,.07);}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;gap:var(--sp-4);
}
.nav-side{display:flex;align-items:center;gap:28px;flex:1 1 0;}
.nav-side--right{justify-content:flex-end;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none;}
.brand-mark{
  width:28px;height:28px;border-radius:8px;background:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.brand-mark svg{width:17px;height:17px;fill:none;stroke:#fff;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{font-size:18px;font-weight:700;color:var(--text);letter-spacing:.2px;white-space:nowrap;}
.nav-cta{height:42px;padding:10px 18px;font-size:14px;white-space:nowrap;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--border);
  background:#fff;position:relative;cursor:pointer;
}
.nav-toggle span,.nav-toggle::before,.nav-toggle::after{
  content:"";position:absolute;left:12px;right:12px;height:2px;border-radius:2px;background:var(--primary-dark);
  transition:transform var(--ease),opacity var(--ease);
}
.nav-toggle::before{top:15px;}
.nav-toggle span{top:21px;}
.nav-toggle::after{top:27px;}
.nav-toggle[aria-expanded="true"]::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span{opacity:0;}
.nav-toggle[aria-expanded="true"]::after{transform:translateY(-6px) rotate(-45deg);}

.mobile-drawer{
  position:fixed;inset:60px 0 0 0;background:#fff;z-index:55;
  padding:var(--sp-5) var(--sp-5) var(--sp-8);
  transform:translateY(-8px);opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
  overflow-y:auto;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto;}
.mobile-drawer a{
  display:flex;align-items:center;min-height:52px;font-size:17px;font-weight:500;color:var(--text);
  border-bottom:1px solid var(--border);
}
.mobile-drawer a.is-active{color:var(--primary);font-weight:600;}
.mobile-drawer .btn{margin-top:var(--sp-5);width:100%;}
.drawer-mask{
  position:fixed;inset:60px 0 0 0;background:rgba(16,42,67,.35);z-index:50;
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;padding:var(--sp-8) 0;
  background:var(--primary-soft);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  opacity:.22;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(232,241,248,.94) 0%,rgba(232,241,248,.72) 55%,rgba(232,241,248,.42) 100%);
}
.cat-hero .grid-container{position:relative;z-index:2;}
.cat-hero__inner{max-width:720px;}
.cat-hero h1{margin:var(--sp-4) 0 var(--sp-3);}
.cat-hero__lead{font-size:17px;color:var(--muted);margin-bottom:var(--sp-5);}
.cat-hero__actions{display:flex;flex-wrap:wrap;gap:var(--sp-3);}
.cat-hero__meta{
  display:flex;flex-wrap:wrap;gap:var(--sp-5);margin-top:var(--sp-5);
  font-size:14px;color:var(--muted);
}
.cat-hero__meta span{display:inline-flex;align-items:center;gap:6px;}
.cat-hero__meta svg{width:16px;height:16px;fill:none;stroke:var(--primary);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.crumbs{font-size:14px;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px;align-items:center;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--primary);}
.crumbs span{color:var(--disabled);}

/* ---------- Stats strip ---------- */
.stats-strip{background:var(--primary-dark);color:#fff;padding:var(--sp-6) 0;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-5);}
.stat-item{border-left:1px solid rgba(255,255,255,.22);padding-left:var(--sp-5);}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-num{font-size:32px;font-weight:700;line-height:1.2;color:#fff;}
.stat-num em{font-style:normal;font-size:18px;font-weight:600;color:var(--accent);margin-left:2px;}
.stat-label{font-size:14px;color:rgba(255,255,255,.78);margin:0;}

/* ---------- Steps layout ---------- */
.steps-layout{display:grid;grid-template-columns:240px 1fr;gap:var(--sp-7);align-items:start;}
.anchor-nav{
  position:sticky;top:96px;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-card);padding:var(--sp-5);box-shadow:var(--shadow);
}
.anchor-nav__title{font-size:13px;font-weight:700;letter-spacing:1.2px;color:var(--muted);margin-bottom:var(--sp-3);}
.anchor-nav ul li a{
  display:block;font-size:14px;color:var(--muted);padding:8px 0 8px 12px;
  border-left:3px solid transparent;transition:color var(--ease),border-color var(--ease),background-color var(--ease);
  border-radius:0 8px 8px 0;
}
.anchor-nav ul li a:hover{color:var(--primary);background:#F4F8FC;}
.anchor-nav ul li a.is-current{color:var(--primary-dark);font-weight:600;border-left-color:var(--primary);background:#F4F8FC;}
.anchor-nav__cta{margin-top:var(--sp-5);}
.anchor-nav__cta .btn{width:100%;height:44px;font-size:14px;}

.step-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:var(--sp-6);box-shadow:var(--shadow);margin-bottom:var(--sp-5);
  display:grid;grid-template-columns:96px 1fr;gap:var(--sp-5);
  transition:box-shadow var(--ease),transform var(--ease);
  scroll-margin-top:110px;
}
.step-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);}
.step-num{
  font-size:48px;line-height:1;font-weight:700;color:transparent;
  -webkit-text-stroke:1.5px var(--primary);
}
@supports not ((-webkit-text-stroke:1px #000)){
  .step-num{color:var(--primary);}
}
.step-body h3{margin-bottom:var(--sp-2);}
.step-body p{color:var(--muted);margin-bottom:var(--sp-3);}
.step-points{display:grid;gap:8px;margin-bottom:var(--sp-3);}
.step-points li{position:relative;padding-left:22px;font-size:15px;color:var(--text);}
.step-points li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;
  background:var(--primary-soft);border:2px solid var(--primary);
}
.step-figure{margin:0;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--border);}
.step-figure img{width:100%;height:180px;object-fit:cover;}
.step-figure figcaption{font-size:13px;color:var(--muted);text-align:center;padding:8px 0 10px;background:#FBFCFE;margin:0;}
.step-note{
  display:flex;gap:10px;align-items:flex-start;background:#F4F8FC;border-left:3px solid var(--primary);
  border-radius:0 10px 10px 0;padding:12px 14px;font-size:14px;color:var(--muted);margin-top:var(--sp-2);
}
.step-note svg{width:18px;height:18px;flex:0 0 auto;margin-top:3px;fill:none;stroke:var(--primary);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- Checklist band ---------- */
.checklist-band{
  margin:var(--sp-6) 0 0;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-card);padding:var(--sp-5);display:grid;
  grid-template-columns:auto 1fr;gap:var(--sp-5);align-items:center;box-shadow:var(--shadow);
}
.checklist-band__icon{
  width:48px;height:48px;border-radius:12px;background:var(--primary-soft);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.checklist-band__icon svg{width:24px;height:24px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.checklist-items{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-4);}
.checklist-items div{background:#F7FAFD;border-radius:10px;padding:12px 14px;font-size:14px;color:var(--text);}
.checklist-items strong{display:block;font-size:13px;color:var(--primary);margin-bottom:4px;}

/* ---------- Scenario list ---------- */
.scenario-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-5);}
.scenario-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:var(--sp-5);box-shadow:var(--shadow);
  display:flex;flex-direction:column;gap:var(--sp-3);height:100%;
  transition:transform var(--ease),box-shadow var(--ease);
}
.scenario-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.scenario-card h3{font-size:17px;}
.scenario-card p{color:var(--muted);font-size:15px;margin:0;}
.scenario-card__top{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.scenario-card__icon{
  width:44px;height:44px;border-radius:12px;background:var(--primary-soft);
  display:flex;align-items:center;justify-content:center;
}
.scenario-card__icon svg{width:22px;height:22px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.scenario-card .link-arrow{margin-top:auto;}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--border);}
.faq-item{border-bottom:1px solid var(--border);}
.faq-q{
  width:100%;background:none;border:0;text-align:left;cursor:pointer;
  min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:var(--sp-4);
  font-size:17px;font-weight:600;color:var(--text);padding:14px 0 14px 16px;position:relative;
  transition:color var(--ease);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:3px;
  background:var(--primary);transform:scaleY(0);transform-origin:top;transition:transform var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-q[aria-expanded="true"]::before{transform:scaleY(1);}
.faq-q[aria-expanded="true"]{color:var(--primary-dark);}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 auto;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
  transition:transform var(--ease),opacity var(--ease);
}
.faq-icon::before{left:0;right:0;top:9px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:9px;width:2px;}
.faq-q[aria-expanded="true"] .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{display:none;padding:0 16px 18px 16px;color:var(--muted);font-size:15px;}
.faq-a.is-open{display:block;}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--primary-soft);
  border-radius:var(--radius-card);padding:var(--sp-7);border:1px solid #D6E5F2;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;opacity:.16;
}
.cta-band__inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-6);align-items:center;}
.cta-band h2{margin-bottom:var(--sp-3);}
.cta-band p{color:var(--muted);margin:0;}
.cta-form{display:flex;gap:var(--sp-3);}
.cta-form input{
  flex:1 1 auto;height:48px;padding:12px 14px;border-radius:var(--radius-btn);
  border:1px solid var(--border);background:#fff;font-size:15px;color:var(--text);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.cta-form input::placeholder{color:var(--disabled);}
.cta-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(27,108,168,.15);}
.cta-form .btn{flex:0 0 auto;}
.form-hint{font-size:13px;color:var(--muted);margin:10px 0 0;}

/* ---------- Footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--border);padding-top:var(--sp-8);margin-top:var(--sp-9);}
.footer-grid{padding-bottom:var(--sp-7);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:var(--sp-4);}
.footer-about{font-size:14px;color:var(--muted);line-height:1.75;margin:0;}
.footer-title{font-size:14px;font-weight:700;color:var(--text);margin:0 0 var(--sp-4);}
.footer-list li{margin-bottom:10px;}
.footer-list a{font-size:14px;color:var(--muted);}
.footer-list a:hover{color:var(--primary);}
.footer-contact{font-size:14px;color:var(--muted);line-height:1.9;margin:0;}
.footer-bottom{
  border-top:1px solid var(--border);padding:var(--sp-5) 0 var(--sp-6);
  display:flex;flex-wrap:wrap;gap:var(--sp-4);align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:var(--muted);margin:0;}
.footer-social{display:flex;gap:10px;}
.footer-social a{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;background:#FBFCFE;
  transition:border-color var(--ease),transform var(--ease);
}
.footer-social a:hover{border-color:var(--primary);transform:translateY(-2px);}
.footer-social svg{width:18px;height:18px;fill:none;stroke:var(--primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}

/* ---------- Sticky conversion bar ---------- */
.sticky-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;height:64px;background:#fff;
  border-top:1px solid var(--border);box-shadow:0 -8px 24px rgba(16,42,67,.08);
  display:flex;align-items:center;justify-content:space-between;gap:var(--sp-4);
  padding:0 16px;transform:translateY(110%);transition:transform 260ms cubic-bezier(.2,.7,.3,1);
}
.sticky-bar.is-visible{transform:translateY(0);}
.sticky-bar__text{font-size:14px;font-weight:600;color:var(--text);}
.sticky-bar__close{
  background:none;border:0;color:var(--disabled);font-size:20px;line-height:1;cursor:pointer;
  width:32px;height:32px;border-radius:8px;
}
.sticky-bar__close:hover{color:var(--text);background:var(--bg);}
.btn-pill{height:44px;border-radius:var(--radius-pill);padding:10px 22px;font-size:15px;}

/* ---------- Back to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:88px;width:44px;height:44px;border-radius:50%;
  background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);
  display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:65;
  opacity:0;visibility:hidden;transition:opacity var(--ease),visibility var(--ease),transform var(--ease);
}
.to-top.is-visible{opacity:1;visibility:visible;}
.to-top:hover{transform:translateY(-3px);}
.to-top svg{width:20px;height:20px;fill:none;stroke:var(--primary);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}

@media screen and (min-width:1024px){
  .sticky-bar{
    left:auto;right:24px;bottom:24px;width:320px;height:auto;border:1px solid var(--border);
    border-radius:var(--radius-card);padding:16px;box-shadow:var(--shadow-hover);
    display:block;transform:translateY(140%);
  }
  .sticky-bar.is-visible{transform:translateY(0);}
  .sticky-bar__text{display:block;margin-bottom:12px;}
  .sticky-bar .btn-pill{width:100%;}
  .sticky-bar__close{position:absolute;top:8px;right:8px;}
  .to-top{bottom:24px;}
}
@media screen and (max-width:1023px){
  .nav-side{display:none;}
  .nav-toggle{display:block;}
  .nav-wrap{height:60px;}
  .brand-text{font-size:16px;}
  .mobile-drawer,.drawer-mask{inset:60px 0 0 0;}
  .steps-layout{grid-template-columns:1fr;gap:var(--sp-5);}
  .anchor-nav{position:static;}
  .scenario-grid{grid-template-columns:repeat(2,1fr);}
  .checklist-items{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:var(--sp-4);}
  .stat-item{border-left:0;padding-left:0;}
  .cta-band__inner{grid-template-columns:1fr;}
  .section{padding:64px 0;}
  .section--tight{padding:56px 0;}
  .site-footer{margin-top:64px;}
}
@media screen and (max-width:767px){
  .grid-container{padding-left:16px;padding-right:16px;}
  .section{padding:48px 0;}
  .cat-hero{padding:var(--sp-7) 0;}
  .step-card{grid-template-columns:1fr;padding:20px;gap:var(--sp-4);}
  .step-num{font-size:38px;}
  .scenario-grid{grid-template-columns:1fr;}
  .cta-band{padding:24px;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .checklist-band{grid-template-columns:1fr;}
  .step-figure img{height:160px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .footer-grid > div{margin-bottom:var(--sp-5);}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: article */
/* ================= 设计变量 ================= */
:root{
  --primary:#1B6CA8;
  --primary-deep:#12507F;
  --primary-soft:#E8F1F8;
  --primary-line:#C9D8E6;
  --accent:#FF6A3D;
  --accent-hover:#E85526;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --border:#E3E9F2;
  --text:#1F2937;
  --text-soft:#5B6B7F;
  --text-muted:#9AA7B6;
  --success:#1E9E6A;
  --warning:#D98324;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-sm:0 2px 8px rgba(16,42,67,.06),0 12px 28px rgba(16,42,67,.06);
  --shadow-lg:0 18px 40px rgba(16,42,67,.12);
  --ease:220ms cubic-bezier(.2,.7,.3,1);
}
/* ================= 基础 reset ================= */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:600;color:var(--text);line-height:1.35}
p{margin:0}
a{color:var(--primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--primary-deep)}
img{max-width:100%;height:auto;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;cursor:pointer}
input,textarea{font-family:inherit}
::selection{background:rgba(27,108,168,.16)}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
/* Foundation 覆盖 */
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto}
.grid-x{margin-left:-12px;margin-right:-12px}
.grid-x>.cell{padding-left:12px;padding-right:12px}
.button,a.button{background:none;color:inherit;padding:0;margin:0;font-size:inherit;border:0}
/* ================= 通用组件 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(27,108,168,.22)}
.btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(27,108,168,.28)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 6px 16px rgba(255,106,61,.26)}
.btn-accent:hover{background:var(--accent-hover);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,106,61,.3)}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary-line)}
.btn-ghost:hover{color:var(--primary-deep);border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--primary-soft);color:var(--primary);
}
.badge--green{background:#E3F4F0;color:#178A7A}
.badge--amber{background:#FBF0DE;color:#C97A16}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary)}
.link-arrow svg{width:16px;height:16px;transition:transform var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-title{font-size:clamp(22px,3vw,30px);font-weight:600;line-height:1.32}
.section-sub{font-size:14px;color:var(--text-soft);margin-top:8px}
.icon-line{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
/* ================= 导航 ================= */
.site-header{
  position:sticky;top:0;z-index:100;background:#fff;height:72px;
  border-bottom:1px solid transparent;transition:box-shadow var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--border);box-shadow:0 6px 20px rgba(16,42,67,.06)}
.site-header .grid-container{height:100%}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:100%;gap:16px}
.nav-side{display:flex;align-items:center;gap:28px}
.nav-side--right{gap:20px}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text-soft);
  padding:6px 0;transition:color var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--primary);transform:scaleX(0);transform-origin:center;transition:transform var(--ease);
}
.nav-link:hover{color:var(--primary-deep)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--primary);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand-mark{
  width:28px;height:28px;border-radius:8px;background:var(--primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 28px;
}
.brand-mark svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.brand-text{font-size:18px;font-weight:700;color:var(--text);letter-spacing:.01em;white-space:nowrap}
.nav-cta{height:42px;padding:0 18px;font-size:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--border);border-radius:10px;background:#fff;
  align-items:center;justify-content:center;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";display:block;width:18px;height:2px;border-radius:2px;background:var(--primary-deep);
  transition:transform var(--ease),opacity var(--ease);
}
.nav-toggle span::before{transform:translateY(-6px)}
.nav-toggle span::after{transform:translateY(4px)}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{transform:rotate(45deg) translateY(0)}
body.nav-open .nav-toggle span::after{transform:rotate(-45deg) translateY(-2px)}
/* ================= 文章头部 ================= */
.article-hero{
  position:relative;
  background-image:linear-gradient(90deg,rgba(255,255,255,.97) 0%,rgba(232,241,248,.88) 60%,rgba(232,241,248,.72) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center right;
  border-bottom:1px solid var(--border);
  padding:28px 0 40px;
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-soft);margin-bottom:18px}
.breadcrumb a{color:var(--text-soft)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--text-muted)}
.breadcrumb .current{color:var(--text-soft);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-title{
  font-size:clamp(28px,4vw,42px);line-height:1.28;font-weight:700;letter-spacing:-.01em;
  max-width:860px;margin:14px 0 18px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;font-size:14px;color:var(--text-soft)}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta .meta-dot{width:4px;height:4px;border-radius:50%;background:var(--primary-line)}
/* ================= 文章布局 ================= */
.article-wrap{padding:48px 24px 88px}
.article-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:36px 40px 40px;
}
.article-body{max-width:760px;font-size:16px;line-height:1.85;color:var(--text)}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 18px}
.article-body h2{
  font-size:clamp(20px,2.6vw,26px);line-height:1.4;font-weight:600;
  margin:38px 0 16px;padding-left:14px;border-left:4px solid var(--primary);border-radius:2px;
}
.article-body h3{font-size:19px;font-weight:600;margin:28px 0 12px}
.article-body h4{font-size:16px;font-weight:600;margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:24px}
.article-body ul li{list-style:disc}
.article-body ol li{list-style:decimal}
.article-body li{margin:8px 0;line-height:1.8}
.article-body blockquote{
  margin:22px 0;padding:18px 22px;background:#F2F6FA;border-left:4px solid var(--primary);
  border-radius:0 12px 12px 0;color:#334155;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-img);border:1px solid var(--border);margin:8px 0}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--text-soft);text-align:center;margin-top:10px}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--primary-deep)}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;border-radius:var(--radius-img);overflow:hidden}
.article-body th,.article-body td{border:1px solid var(--border);padding:10px 14px;text-align:left}
.article-body thead th{background:var(--primary-soft);font-weight:600;color:var(--primary-deep)}
.article-body tbody tr:nth-child(even){background:#FAFCFE}
.article-body code{background:#F1F5F9;padding:2px 6px;border-radius:6px;font-size:14px}
.article-body hr{border:0;border-top:1px solid var(--border);margin:32px 0}
/* 空态 */
.empty-state{
  border:1px dashed var(--primary-line);border-radius:var(--radius-card);background:#FCFDFF;
  padding:48px 24px;text-align:center;
}
.empty-state .empty-icon{
  width:56px;height:56px;border-radius:16px;background:var(--primary-soft);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.empty-state h2{font-size:20px;margin-bottom:8px}
.empty-state p{font-size:14px;color:var(--text-soft);margin-bottom:20px}
/* 底部延伸阅读 */
.post-nav{margin-top:40px;display:grid;grid-template-columns:1fr 1fr;gap:20px}
.post-nav-card{
  display:flex;flex-direction:column;gap:6px;padding:20px 22px;border:1px solid var(--border);
  border-radius:var(--radius-card);background:#fff;transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.post-nav-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--primary-line)}
.post-nav-card .pn-label{font-size:12px;color:var(--text-muted);letter-spacing:.04em}
.post-nav-card .pn-title{font-size:16px;font-weight:600;color:var(--text)}
.post-nav-card .pn-desc{font-size:13px;color:var(--text-soft);line-height:1.7}
.article-foot{margin-top:44px;padding-top:32px;border-top:1px solid var(--border)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px}
.related-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-card);overflow:hidden;transition:transform var(--ease),box-shadow var(--ease);
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.related-card .rc-media{aspect-ratio:16/9;overflow:hidden;background:var(--primary-soft);border-bottom:1px solid var(--border)}
.related-card .rc-media img{width:100%;height:100%;object-fit:cover}
.related-card .rc-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.related-card .rc-title{font-size:16px;font-weight:600;line-height:1.5}
.related-card .rc-desc{font-size:13px;color:var(--text-soft);line-height:1.7;flex:1}
.return-row{margin-top:36px;text-align:center}
/* ================= 侧栏 ================= */
.side-stack{display:flex;flex-direction:column;gap:24px;position:sticky;top:96px}
.side-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:24px;
}
.side-card-title{
  font-size:15px;font-weight:600;color:var(--text);display:flex;align-items:center;gap:8px;
  padding-bottom:14px;margin-bottom:14px;border-bottom:1px solid var(--border);
}
.side-card-title .icon-line{color:var(--primary)}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-link{
  display:block;font-size:14px;color:var(--text-soft);line-height:1.6;
  padding:8px 10px 8px 12px;border-left:3px solid transparent;border-radius:0 8px 8px 0;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.toc-link:hover{background:var(--primary-soft);color:var(--primary-deep)}
.toc-link.is-current{border-left-color:var(--primary);color:var(--primary);font-weight:600;background:var(--primary-soft)}
.side-list{display:flex;flex-direction:column;gap:14px}
.side-list-item{display:flex;gap:12px;align-items:flex-start}
.side-list-item .sl-thumb{
  width:64px;height:48px;flex:0 0 64px;border-radius:10px;overflow:hidden;border:1px solid var(--border);background:var(--primary-soft);
}
.side-list-item .sl-thumb img{width:100%;height:100%;object-fit:cover}
.side-list-item .sl-text{font-size:14px;line-height:1.6;color:var(--text);font-weight:500}
.side-list-item .sl-meta{font-size:12px;color:var(--text-muted);margin-top:4px;font-weight:400}
.side-cta{background:var(--primary-soft);border-color:var(--primary-line)}
.side-cta h3{font-size:17px;margin-bottom:8px;color:var(--primary-deep)}
.side-cta p{font-size:14px;color:var(--text-soft);margin-bottom:18px}
.side-cta .btn{width:100%}
/* ================= 页脚 ================= */
.site-footer{background:#fff;border-top:1px solid var(--border);padding:64px 0 28px;margin-top:0}
.footer-grid{row-gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-about{font-size:14px;color:var(--text-soft);line-height:1.8;max-width:340px}
.footer-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:16px}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a{font-size:14px;color:var(--text-soft)}
.footer-list a:hover{color:var(--primary)}
.footer-contact{font-size:14px;color:var(--text-soft);line-height:1.9}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-muted)}
.footer-social{display:flex;align-items:center;gap:10px}
.footer-social a{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--border);
  display:inline-flex;align-items:center;justify-content:center;color:var(--text-soft);
  transition:color var(--ease),border-color var(--ease),transform var(--ease);
}
.footer-social a:hover{color:var(--primary);border-color:var(--primary-line);transform:translateY(-2px)}
.footer-social svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
/* ================= 悬浮转化卡 ================= */
.float-cta{
  position:fixed;right:24px;bottom:24px;width:320px;z-index:95;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-lg);padding:22px;
  display:flex;flex-direction:column;gap:12px;
  opacity:0;transform:translateY(16px);pointer-events:none;
  transition:opacity var(--ease),transform var(--ease);
}
.float-cta.is-visible{opacity:1;transform:none;pointer-events:auto}
.float-cta[hidden]{display:none}
.float-cta-title{font-size:16px;font-weight:600;color:var(--text);padding-right:28px}
.float-cta-text{font-size:13px;color:var(--text-soft);line-height:1.7}
.float-cta .btn{width:100%}
.float-cta-close{
  position:absolute;top:12px;right:12px;width:28px;height:28px;border-radius:8px;
  border:1px solid var(--border);background:#fff;color:var(--text-muted);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;line-height:1;
  transition:color var(--ease),border-color var(--ease);
}
.float-cta-close:hover{color:var(--primary);border-color:var(--primary-line)}
/* ================= 响应式 ================= */
@media (max-width:1023px){
  .site-header{height:60px}
  .nav-wrap{display:grid;grid-template-columns:1fr auto;grid-template-areas:"brand toggle";align-items:center;height:60px;column-gap:12px}
  .brand{grid-area:brand}
  .nav-toggle{grid-area:toggle;display:inline-flex}
  .nav-side{display:none}
  body.nav-open{overflow:hidden}
  body.nav-open .nav-wrap{
    position:fixed;inset:0;height:auto;grid-template-areas:"brand toggle" "menuL menuL" "menuR menuR";
    align-content:start;row-gap:12px;padding:14px 16px 40px;background:#fff;overflow-y:auto;z-index:120;
  }
  body.nav-open .nav-side--left{grid-area:menuL;display:flex;flex-direction:column;align-items:stretch;gap:2px;margin-top:10px}
  body.nav-open .nav-side--right{grid-area:menuR;display:flex;flex-direction:column;align-items:stretch;gap:2px;border-top:1px solid var(--border);padding-top:12px}
  .nav-link{padding:14px 4px;font-size:16px;border-bottom:1px solid var(--border);min-height:44px;display:flex;align-items:center}
  .nav-link::after{display:none}
  .nav-side--right .nav-link{border-bottom:0;padding:12px 4px}
  .nav-cta{width:100%;margin-top:10px;height:46px}
  .article-wrap{padding:32px 24px 64px}
  .article-card{padding:26px 24px 30px}
  .side-stack{position:static;margin-top:24px}
  .related-grid{grid-template-columns:1fr 1fr}
  .float-cta{display:none}
}
@media (max-width:767px){
  .article-hero{padding:20px 0 30px}
  .article-title{font-size:24px;line-height:1.35}
  .breadcrumb .current{max-width:220px}
  .article-wrap{padding:24px 16px 56px}
  .article-card{padding:22px 18px 26px;border-radius:14px}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:20px;margin:30px 0 14px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .post-nav{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .site-footer{padding:48px 0 24px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
}

/* roulang page: category2 */
:root{
  --primary:#1B6CA8;
  --primary-dark:#12507F;
  --primary-light:#E8F1F8;
  --accent:#FF6A3D;
  --accent-hover:#E85526;
  --teal:#178A7A;
  --teal-light:#E4F4F1;
  --amber:#C97A16;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --border:#E3E9F2;
  --text:#1F2937;
  --muted:#5B6B7F;
  --disabled:#9AA7B6;
  --success:#1E9E6A;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-sm:0 2px 8px rgba(16,42,67,.06), 0 12px 28px rgba(16,42,67,.06);
  --shadow-lg:0 18px 40px rgba(16,42,67,.12);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--primary);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--primary-dark);}
button{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

h1{font-size:clamp(28px,4vw,42px);line-height:1.28;font-weight:700;letter-spacing:-.4px;}
h2{font-size:clamp(22px,3vw,30px);line-height:1.32;font-weight:600;letter-spacing:-.2px;}
h3{font-size:20px;line-height:1.4;font-weight:600;}
p{font-size:16px;line-height:1.8;}

.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto;}
.grid-x.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-x.grid-margin-x > .cell{padding-left:12px;padding-right:12px;}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid transparent;
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--border);box-shadow:0 6px 20px rgba(16,42,67,.08);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:12px;}
.nav-side{display:flex;align-items:center;gap:26px;}
.nav-side--left{flex:1 1 0;justify-content:flex-start;}
.nav-side--right{flex:1 1 0;justify-content:flex-end;gap:18px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--text);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--primary);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .22s var(--ease);
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none;}
.brand-mark{
  width:28px;height:28px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary);flex:0 0 28px;
}
.brand-mark svg{width:17px;height:17px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{font-size:18px;font-weight:700;color:var(--text);letter-spacing:-.2px;white-space:nowrap;}
.brand:hover .brand-text{color:var(--primary-dark);}
.nav-cta{height:40px;padding:0 18px;font-size:14px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;text-align:center;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 18px rgba(232,85,38,.22);}
.btn-primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(232,85,38,.3);}
.btn-outline{background:#fff;color:var(--primary);border-color:#C9D8E6;}
.btn-outline:hover{color:var(--primary-dark);border-color:var(--primary);transform:translateY(-2px);box-shadow:0 10px 22px rgba(16,42,67,.12);}
.btn-ghost{background:var(--primary-light);color:var(--primary-dark);border-color:transparent;}
.btn-ghost:hover{background:#DCEAF6;color:var(--primary-dark);transform:translateY(-2px);}
.btn[disabled],.btn.is-disabled{opacity:.5;pointer-events:none;transform:none;box-shadow:none;}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-btn);
  background:#fff;border:1px solid var(--border);cursor:pointer;
  align-items:center;justify-content:center;padding:0;
}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:background .2s var(--ease);}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
  transition:transform .24s var(--ease),top .24s var(--ease);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}

.nav-drawer{
  position:fixed;top:72px;left:0;right:0;z-index:59;
  background:#fff;border-bottom:1px solid var(--border);
  box-shadow:0 18px 40px rgba(16,42,67,.12);
  padding:12px 24px 24px;
  display:flex;flex-direction:column;gap:4px;
  transform:translateY(-14px);opacity:0;visibility:hidden;pointer-events:none;
  transition:transform .26s var(--ease),opacity .26s var(--ease),visibility .26s var(--ease);
}
.nav-drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto;}
.drawer-link{
  display:flex;align-items:center;min-height:48px;font-size:16px;font-weight:500;
  color:var(--text);border-bottom:1px solid var(--border);
}
.drawer-link.is-active{color:var(--primary);font-weight:600;}
.drawer-cta{margin-top:16px;width:100%;}
.nav-mask{
  position:fixed;inset:72px 0 0 0;background:rgba(16,42,67,.32);z-index:58;
  opacity:0;visibility:hidden;transition:opacity .26s var(--ease),visibility .26s var(--ease);
}
.nav-mask.is-open{opacity:1;visibility:visible;}

/* ============ Page hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#EDF5FB 0%,#F6F8FB 100%);
  border-bottom:1px solid var(--border);
}
.page-hero__bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center right;
  opacity:.16;pointer-events:none;
}
.page-hero__inner{position:relative;padding:52px 0 56px;max-width:760px;}
.breadcrumb{font-size:14px;color:var(--muted);margin-bottom:18px;line-height:1.6;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span.sep{margin:0 6px;color:var(--disabled);}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 12px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;letter-spacing:.2px;
}
.badge--primary{background:var(--primary-light);color:var(--primary-dark);}
.badge--teal{background:var(--teal-light);color:var(--teal);}
.badge--amber{background:#FBF0DF;color:var(--amber);}
.page-hero h1{margin:16px 0 14px;color:var(--primary-dark);}
.page-hero__lead{font-size:17px;color:var(--muted);max-width:620px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ Sections ============ */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head .badge{margin-bottom:14px;}
.section-head h2{color:var(--text);margin-bottom:14px;}
.section-head p{color:var(--muted);}
.section-head--row{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  max-width:none;
}
.arrow-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);
}
.arrow-link span{transition:transform .22s var(--ease);display:inline-block;}
.arrow-link:hover span{transform:translateX(4px);}

/* Security cards */
.sec-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-sm);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.sec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#D3DFEC;}
.card-cell{margin-bottom:24px;}
.sec-card__icon{
  width:48px;height:48px;border-radius:14px;background:var(--teal-light);
  display:flex;align-items:center;justify-content:center;color:var(--teal);margin-bottom:18px;
}
.sec-card__icon svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.sec-card h3{margin-bottom:10px;color:var(--text);}
.sec-card p{font-size:15px;line-height:1.75;color:var(--muted);margin-bottom:18px;}
.sec-card .arrow-link{margin-top:auto;}

/* Key list strip */
.key-strip{
  background:#EEF2F7;border-radius:12px;padding:22px 26px;
  display:flex;flex-wrap:wrap;align-items:center;gap:16px 40px;
  border:1px solid var(--border);
}
.key-strip__item{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:600;color:var(--text);}
.key-strip__item svg{width:20px;height:20px;fill:none;stroke:var(--teal);stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:0 0 20px;}

/* Media block */
.media-block{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.media-block__img{
  border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-sm);background:var(--primary-light);
}
.media-block__img img{width:100%;height:340px;object-fit:cover;border-radius:0;}
.media-list{display:flex;flex-direction:column;gap:18px;margin-top:24px;}
.media-list__row{
  display:flex;gap:14px;padding:18px 20px;background:#fff;border:1px solid var(--border);
  border-radius:14px;transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.media-list__row:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm);}
.media-list__tag{
  flex:0 0 44px;width:44px;height:44px;border-radius:12px;background:var(--teal-light);color:var(--teal);
  display:flex;align-items:center;justify-content:center;
}
.media-list__tag svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}
.media-list__body h4{font-size:16px;font-weight:600;margin-bottom:6px;}
.media-list__body p{font-size:14.5px;color:var(--muted);line-height:1.7;}

/* Stats */
.stats-band{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);}
.stat{padding:38px 24px;text-align:center;border-left:1px solid var(--border);}
.stat:first-child{border-left:0;}
.stat__num{font-size:32px;font-weight:700;color:var(--primary);line-height:1.2;letter-spacing:-.5px;}
.stat__num em{font-style:normal;font-size:18px;font-weight:600;margin-left:4px;color:var(--muted);}
.stat__label{margin-top:8px;font-size:14px;color:var(--muted);}

/* FAQ */
.faq{border-top:1px solid var(--border);}
.faq-item{border-bottom:1px solid var(--border);}
.faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;padding:16px 4px;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);line-height:1.6;
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--primary);}
.faq-icon{
  position:relative;flex:0 0 20px;width:20px;height:20px;
  transition:transform .2s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--teal);border-radius:2px;
}
.faq-icon::before{left:4px;right:4px;top:9px;height:2px;}
.faq-icon::after{top:4px;bottom:4px;left:9px;width:2px;transition:transform .2s var(--ease);}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);}
.faq-a{display:none;padding:0 4px 22px 16px;border-left:3px solid var(--teal);margin-left:4px;}
.faq-item.is-open .faq-a{display:block;}
.faq-a p{font-size:15.5px;color:var(--muted);}

/* CTA */
.cta-block{
  background:var(--primary-light);border-radius:var(--radius-card);
  padding:48px;display:grid;grid-template-columns:1.2fr 1fr;gap:32px;align-items:center;
  border:1px solid #D8E7F3;
}
.cta-block h2{color:var(--primary-dark);margin-bottom:12px;font-size:clamp(20px,2.6vw,26px);}
.cta-block p{color:var(--muted);font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* Footer */
.site-footer{background:#fff;border-top:1px solid var(--border);padding:64px 0 32px;margin-top:0;}
.footer-grid{padding-bottom:36px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-about{font-size:14px;color:var(--muted);line-height:1.8;max-width:330px;}
.footer-title{font-size:15px;font-weight:600;color:var(--text);margin-bottom:16px;}
.footer-list li{margin-bottom:10px;}
.footer-list a{font-size:14px;color:var(--muted);}
.footer-list a:hover{color:var(--primary);}
.footer-contact{font-size:14px;color:var(--muted);line-height:2;}
.footer-bottom{
  border-top:1px solid var(--border);padding-top:24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--muted);}
.footer-social{display:flex;gap:12px;}
.footer-social a{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;color:var(--muted);
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.footer-social a:hover{color:var(--primary);border-color:#C9D8E6;transform:translateY(-2px);}
.footer-social svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;}

/* Sticky CTA */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:10px 16px;background:#fff;box-shadow:0 -6px 20px rgba(16,42,67,.12);
  transform:translateY(120%);transition:transform .3s var(--ease);
}
.sticky-cta.is-visible{transform:translateY(0);}
.sticky-cta__text{font-size:14px;font-weight:600;color:var(--text);}
.sticky-cta__btn{height:44px;padding:0 20px;border-radius:999px;font-size:14px;}
.sticky-close{
  position:absolute;top:-12px;right:12px;width:28px;height:28px;border-radius:50%;
  background:#fff;border:1px solid var(--border);cursor:pointer;color:var(--muted);
  display:flex;align-items:center;justify-content:center;font-size:14px;line-height:1;
  box-shadow:var(--shadow-sm);
}
.sticky-close:hover{color:var(--text);}

/* ============ Responsive ============ */
@media (max-width:1023px){
  .nav-side{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-wrap{height:60px;justify-content:space-between;}
  .brand{position:absolute;left:50%;transform:translateX(-50%);}
  .site-header .grid-container{position:relative;}
  .nav-drawer{top:60px;}
  .nav-mask{inset:60px 0 0 0;}
  .section{padding:64px 0;}
  .section--tight{padding:48px 0;}
  .section-head{margin-bottom:32px;}
  .cta-block{grid-template-columns:1fr;padding:32px;}
  .cta-actions{justify-content:flex-start;}
  .media-block{grid-template-columns:1fr;gap:28px;}
  .media-block__img img{height:280px;}
  .site-footer{padding-bottom:96px;}
}
@media (max-width:639px){
  .grid-container{padding-left:16px;padding-right:16px;}
  .brand-text{font-size:16px;}
  .page-hero__inner{padding:36px 0 42px;}
  .page-hero__lead{font-size:16px;}
  .section{padding:48px 0;}
  .section--tight{padding:40px 0;}
  .sec-card{padding:20px;}
  .key-strip{padding:18px 20px;gap:14px;}
  .stats-grid{grid-template-columns:1fr;}
  .stat{border-left:0;border-top:1px solid var(--border);padding:24px 16px;}
  .stat:first-child{border-top:0;}
  .cta-block{padding:24px;}
  .cta-actions .btn{width:100%;}
  .media-list__row{padding:16px;}
  .hero-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category3 */
:root{
  --primary:#1B6CA8;
  --primary-dark:#12507F;
  --primary-soft:#E8F1F8;
  --accent:#FF6A3D;
  --accent-hover:#E85526;
  --cat:#C97A16;
  --cat-soft:#FDF3E4;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --border:#E3E9F2;
  --text:#1F2937;
  --muted:#5B6B7F;
  --disabled:#9AA7B6;
  --success:#1E9E6A;
  --warn:#D98324;
  --error:#D64545;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-badge:999px;
  --shadow:0 2px 8px rgba(16,42,67,.06),0 12px 28px rgba(16,42,67,.06);
  --shadow-hover:0 18px 40px rgba(16,42,67,.12);
  --t:220ms cubic-bezier(.2,.7,.3,1);
  --font:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--primary-dark);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul{padding-left:0;list-style:none;}
button{font-family:inherit;}
input,textarea{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.grid-container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
h1,h2,h3{font-family:var(--font);color:var(--text);}
h1{font-size:clamp(28px,4vw,42px);line-height:1.28;font-weight:700;letter-spacing:-.01em;}
h2{font-size:clamp(22px,3vw,30px);line-height:1.32;font-weight:600;}
h3{font-size:20px;line-height:1.4;font-weight:600;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid transparent;
  transition:box-shadow var(--t),border-color var(--t);
}
.site-header.is-scrolled{border-bottom-color:var(--border);box-shadow:0 6px 24px rgba(16,42,67,.06);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;}
.nav-side{display:flex;align-items:center;gap:28px;flex:1 1 0;min-width:0;}
.nav-side--right{justify-content:flex-end;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--muted);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--primary);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform var(--t);
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:28px;height:28px;border-radius:8px;background:var(--primary);
  display:grid;place-items:center;flex:0 0 28px;
}
.brand-mark svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{font-size:18px;font-weight:700;color:var(--primary-dark);letter-spacing:.01em;}
.nav-cta{flex:0 0 auto;}
.nav-toggle{display:none;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:12px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;
  cursor:pointer;transition:transform var(--t),box-shadow var(--t),background-color var(--t),color var(--t),border-color var(--t);
  text-align:center;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 24px rgba(255,106,61,.24);}
.btn-primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-2px);box-shadow:0 16px 32px rgba(255,106,61,.3);}
.btn-outline{background:#fff;color:var(--primary);border-color:#C9D8E6;}
.btn-outline:hover{color:var(--primary-dark);border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow);}
.btn-ghost{background:var(--primary-soft);color:var(--primary-dark);}
.btn-ghost:hover{background:#D8E8F5;color:var(--primary-dark);transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:8px 18px;font-size:14px;}
.btn:disabled{opacity:.5;transform:none;box-shadow:none;cursor:not-allowed;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);}
.text-link svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;transition:transform var(--t);}
.text-link:hover svg{transform:translateX(4px);}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 12px;
  border-radius:var(--radius-badge);font-size:12px;font-weight:600;line-height:1;
  background:var(--cat-soft);color:var(--cat);
}
.badge--primary{background:var(--primary-soft);color:var(--primary);}

/* ============ 内页短 Hero ============ */
.page-hero{
  position:relative;
  background-image:linear-gradient(100deg,rgba(255,255,255,.95),rgba(253,243,228,.88)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--border);
  padding:52px 0 56px;
}
.page-hero .hero-inner{max-width:820px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:20px;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb span.sep{color:#B9C6D6;}
.page-hero h1{margin-bottom:16px;}
.page-hero h1 em{font-style:normal;color:var(--cat);}
.hero-lead{font-size:17px;color:var(--muted);max-width:640px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 指标条 ============ */
.kpi-strip{padding:0 0 8px;margin-top:-28px;position:relative;z-index:2;}
.kpi-card{
  background:var(--primary-dark);border-radius:var(--radius-card);
  padding:30px 28px;box-shadow:0 20px 44px rgba(18,80,127,.22);
  display:grid;grid-template-columns:repeat(4,1fr);gap:8px;
}
.kpi-item{padding:4px 18px;border-left:1px solid rgba(255,255,255,.16);}
.kpi-item:first-child{border-left:0;padding-left:0;}
.kpi-num{font-size:32px;font-weight:700;line-height:1.1;color:#fff;letter-spacing:-.02em;}
.kpi-num small{font-size:16px;font-weight:600;margin-left:2px;}
.kpi-label{font-size:14px;color:rgba(255,255,255,.72);margin-top:6px;}

/* ============ 通用板块 ============ */
.section{padding:88px 0 0;}
.section-head{margin-bottom:36px;max-width:720px;}
.section-head p{color:var(--muted);margin-top:12px;}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}

/* ============ 三步自查 ============ */
.selfcheck{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.check-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:28px 24px;box-shadow:var(--shadow);
  transition:transform var(--t),box-shadow var(--t);
}
.check-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.check-num{
  font-size:40px;font-weight:700;line-height:1;color:transparent;
  -webkit-text-stroke:1.5px var(--cat);
  margin-bottom:16px;
}
.check-card h3{font-size:18px;margin-bottom:10px;}
.check-card p{font-size:15px;color:var(--muted);}

/* ============ FAQ 区域 ============ */
.faq-side{position:sticky;top:96px;}
.faq-side-box{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:22px 20px;box-shadow:var(--shadow);
}
.faq-side-title{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.08em;margin-bottom:14px;}
.faq-side-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 12px;border-radius:10px;font-size:15px;color:var(--text);
  border-left:3px solid transparent;transition:background-color var(--t),color var(--t),border-color var(--t);
}
.faq-side-link:hover{background:var(--primary-soft);color:var(--primary-dark);}
.faq-side-link.is-current{background:var(--cat-soft);color:var(--cat);font-weight:600;border-left-color:var(--cat);}
.faq-side-note{margin-top:16px;padding-top:16px;border-top:1px solid var(--border);font-size:14px;color:var(--muted);}
.faq-side-note a{font-weight:600;}

.faq-group{margin-bottom:36px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);padding:8px 24px 4px;box-shadow:var(--shadow);}
.faq-group:last-child{margin-bottom:0;}
.faq-group-title{
  font-size:18px;font-weight:600;padding:20px 0 8px;display:flex;align-items:center;gap:10px;
}
.faq-group-title .dot{width:8px;height:8px;border-radius:50%;background:var(--cat);flex:0 0 8px;}
.faq-item{border-top:1px solid var(--border);position:relative;}
.faq-item:first-of-type{border-top:1px solid var(--border);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 0;background:transparent;border:0;border-radius:0;
  font-size:16px;font-weight:600;color:var(--text);text-align:left;cursor:pointer;
  transition:color var(--t),padding-left var(--t);
}
.faq-q:hover{color:var(--primary);}
.faq-q::marker{content:"";}
.faq-item.is-open > .faq-q{color:var(--cat);}
.faq-icon{position:relative;width:20px;height:20px;flex:0 0 20px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--cat);border-radius:2px;
  transition:transform var(--t),opacity var(--t);
}
.faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%);}
.faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%);}
.faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms cubic-bezier(.2,.7,.3,1);}
.faq-a-inner{padding:0 16px 20px;font-size:16px;line-height:1.8;color:var(--muted);border-left:3px solid transparent;transition:border-color var(--t);}
.faq-item.is-open .faq-a-inner{border-left-color:var(--cat);}

/* ============ 联系卡 ============ */
.contact-band{padding-top:88px;}
.contact-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow);padding:36px;
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start;
}
.contact-intro h2{margin-bottom:12px;}
.contact-intro p{color:var(--muted);margin-bottom:20px;}
.contact-list li{display:flex;gap:10px;font-size:15px;color:var(--muted);margin-bottom:10px;}
.contact-list svg{width:20px;height:20px;flex:0 0 20px;stroke:var(--cat);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round;margin-top:4px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;font-weight:600;color:var(--text);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;border:1px solid var(--border);border-radius:var(--radius-btn);
  padding:12px 14px;min-height:46px;color:var(--text);background:#fff;
  transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{min-height:120px;resize:vertical;line-height:1.7;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(27,108,168,.15);
}
.field-note{font-size:13px;color:var(--muted);margin-top:8px;}
.form-note{
  display:none;margin-top:16px;padding:12px 14px;border-radius:var(--radius-btn);
  background:#EAF7F1;color:#146B49;font-size:14px;border:1px solid #CBE9DC;
}
.form-note.is-visible{display:block;}

/* ============ CTA 条 ============ */
.cta-band{padding:88px 0 96px;}
.cta-inner{
  background:var(--primary-soft);border-radius:var(--radius-card);
  padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-inner h2{font-size:24px;margin-bottom:8px;}
.cta-inner p{color:var(--muted);font-size:15px;}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.78);padding:64px 0 0;}
.footer-grid{padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.footer-brand .brand-text{color:#fff;}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);max-width:340px;}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-list li{margin-bottom:10px;}
.footer-list a{font-size:14px;color:rgba(255,255,255,.74);}
.footer-list a:hover{color:#fff;}
.footer-contact{font-size:14px;line-height:2;color:rgba(255,255,255,.7);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.6);}
.footer-social{display:flex;gap:12px;}
.footer-social a{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  background:rgba(255,255,255,.1);transition:background-color var(--t),transform var(--t);
}
.footer-social a:hover{background:rgba(255,255,255,.2);transform:translateY(-2px);}
.footer-social svg{width:18px;height:18px;fill:none;stroke:#fff;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}

/* ============ 底部固定转化条 ============ */
.sticky-cta{
  position:fixed;left:16px;right:16px;bottom:16px;z-index:70;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:0 18px 44px rgba(16,42,67,.16);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:12px 14px 12px 20px;
  opacity:0;transform:translateY(24px);pointer-events:none;
  transition:opacity var(--t),transform var(--t);
}
.sticky-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.sticky-cta p{font-size:14px;font-weight:600;color:var(--text);}
.sticky-close{
  width:32px;height:32px;border-radius:50%;border:1px solid var(--border);background:#fff;
  color:var(--muted);font-size:18px;line-height:1;cursor:pointer;flex:0 0 32px;
  transition:color var(--t),border-color var(--t);
}
.sticky-close:hover{color:var(--error);border-color:var(--error);}

/* ============ 移动菜单遮罩 ============ */
.nav-mask{
  position:fixed;inset:0;background:rgba(16,42,67,.36);z-index:55;
  opacity:0;pointer-events:none;transition:opacity var(--t);
}
.nav-mask.is-visible{opacity:1;pointer-events:auto;}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .nav-wrap{min-height:60px;position:relative;}
  .nav-side{
    display:none;flex:1 1 auto;width:100%;
  }
  .brand{order:-1;}
  .nav-toggle{
    display:inline-flex;align-items:center;justify-content:center;
    width:44px;height:44px;border:1px solid var(--border);border-radius:10px;background:#fff;
    position:absolute;right:0;top:8px;cursor:pointer;
  }
  .nav-toggle span{position:relative;width:18px;height:2px;background:var(--primary-dark);border-radius:2px;display:block;transition:var(--t);}
  .nav-toggle span::before,.nav-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--primary-dark);border-radius:2px;transition:var(--t);
  }
  .nav-toggle span::before{top:-6px;}
  .nav-toggle span::after{top:6px;}
  .site-header.nav-open .nav-toggle span{background:transparent;}
  .site-header.nav-open .nav-toggle span::before{top:0;transform:rotate(45deg);}
  .site-header.nav-open .nav-toggle span::after{top:0;transform:rotate(-45deg);}
  .site-header.nav-open .nav-wrap{
    flex-direction:column;align-items:stretch;gap:0;padding:12px 0 20px;
  }
  .site-header.nav-open .nav-side{
    display:flex;flex-direction:column;align-items:stretch;gap:0;padding-top:8px;
  }
  .site-header.nav-open .nav-side--right{justify-content:flex-start;}
  .site-header.nav-open .nav-link{
    min-height:48px;display:flex;align-items:center;padding:12px 4px;
    border-bottom:1px solid var(--border);font-size:16px;
  }
  .site-header.nav-open .nav-link::after{display:none;}
  .site-header.nav-open .nav-cta{margin-top:16px;width:100%;justify-content:center;}
  .site-header.nav-open .brand{margin-bottom:8px;}
  .kpi-card{grid-template-columns:repeat(2,1fr);gap:20px 0;padding:26px 22px;}
  .kpi-item:nth-child(3){border-left:0;padding-left:0;}
  .faq-side{position:static;margin-bottom:28px;}
  .contact-card{grid-template-columns:1fr;gap:28px;padding:28px;}
  .section,.contact-band,.cta-band{padding-top:64px;}
  .cta-band{padding-bottom:72px;}
}
@media screen and (max-width:767px){
  .page-hero{padding:36px 0 44px;}
  .hero-lead{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .selfcheck{grid-template-columns:1fr;gap:16px;}
  .section{padding-top:48px;}
  .contact-band{padding-top:48px;}
  .cta-band{padding-top:48px;padding-bottom:56px;}
  .kpi-strip{margin-top:-20px;}
  .kpi-num{font-size:26px;}
  .faq-group{padding:4px 18px 0;}
  .sticky-cta{left:0;right:0;bottom:0;border-radius:0;border-left:0;border-right:0;border-bottom:0;padding:12px 16px;}
  .site-footer{padding-top:48px;}
  .footer-about{max-width:none;}
  .cta-inner{padding:28px 22px;}
  .cta-inner .btn{width:100%;}
}
@media screen and (max-width:520px){
  h1{font-size:26px;}
  .kpi-card{grid-template-columns:1fr;gap:0;}
  .kpi-item{border-left:0;padding:14px 0;border-top:1px solid rgba(255,255,255,.16);}
  .kpi-item:first-child{border-top:0;padding-top:0;}
  .brand-text{font-size:16px;}
}