/* roulang page: index */
/* ===================== 设计变量 ===================== */
:root{
  --primary:#1462A8;
  --primary-dark:#0E4C86;
  --primary-light:#EAF2FA;
  --primary-lighter:#F2F7FC;
  --teal:#159C8C;
  --amber:#D98A2B;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --panel:#EEF3F8;
  --title:#0F2740;
  --text:#3C5468;
  --muted:#7A8CA0;
  --line:#E1E9F0;
  --radius:12px;
  --radius-btn:8px;
  --radius-pill:999px;
  --shadow-sm:0 2px 6px rgba(16,50,80,.06), 0 12px 28px rgba(16,50,80,.08);
  --shadow-md:0 6px 14px rgba(16,50,80,.09), 0 20px 44px rgba(16,50,80,.13);
  --container:1200px;
  --gutter:24px;
  --nav-h:64px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  --font-num:"Inter","Helvetica Neue","PingFang SC",Arial,sans-serif;
}

/* ===================== 基础重置 ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.78;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{
  margin:0;
  color:var(--title);
  font-weight:700;
  line-height:1.34;
  letter-spacing:.01em;
}
h1{font-size:clamp(30px,4vw,48px);font-weight:700;line-height:1.24;}
h2{font-size:clamp(24px,2.4vw,32px);}
h3{font-size:clamp(18px,1.6vw,22px);font-weight:600;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease, border-color .2s ease, background-color .2s ease;}
a:hover{color:var(--primary-dark);}
img{max-width:100%;height:auto;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;padding:0;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
::selection{background:var(--primary-light);color:var(--primary-dark);}

/* ===================== 容器与栅格 ===================== */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.row{max-width:var(--container);margin-left:auto;margin-right:auto;}
.row .columns{padding-left:12px;padding-right:12px;}
.section{padding:96px 0;position:relative;}
.section--tight{padding:72px 0;}
.section--panel{background:var(--panel);}
.section--white{background:var(--card);}

/* ===================== 通用排版组件 ===================== */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.14em;
  color:var(--primary);
  font-weight:600;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:22px;
  height:2px;
  border-radius:2px;
  background:var(--teal);
  display:inline-block;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
}
.section-head__main{max-width:720px;}
.section-head p{
  margin:12px 0 0;
  color:var(--muted);
  font-size:15.5px;
  line-height:1.8;
}
.lead{font-size:16.5px;line-height:1.85;color:var(--text);}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:600;
  color:var(--primary);
  border-bottom:1px solid transparent;
  padding-bottom:2px;
}
.text-link::after{content:"→";transition:transform .22s ease;font-family:var(--font-num);}
.text-link:hover{border-bottom-color:var(--primary);}
.text-link:hover::after{transform:translateX(3px);}

/* ===================== 按钮体系 ===================== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 26px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:transform .2s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease, border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{
  background:var(--primary);
  color:#fff;
  box-shadow:0 2px 6px rgba(20,98,168,.22);
}
.btn-primary:hover{
  background:var(--primary-dark);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 8px 20px rgba(20,98,168,.28);
}
.btn-outline{
  background:#fff;
  color:var(--primary);
  border-color:#C6DCEF;
}
.btn-outline:hover{
  color:var(--primary-dark);
  border-color:var(--primary);
  background:var(--primary-lighter);
  transform:translateY(-1px);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-lg{height:50px;padding:0 30px;font-size:15.5px;}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;}

/* ===================== 徽章 / 标签 ===================== */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 12px;
  border-radius:var(--radius-pill);
  background:var(--primary-light);
  color:var(--primary);
  font-size:12.5px;
  font-weight:600;
  line-height:1.7;
}
.badge--teal{background:rgba(21,156,140,.1);color:var(--teal);}
.badge--amber{background:rgba(217,138,43,.12);color:var(--amber);}
.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 14px;
  border-radius:var(--radius-pill);
  background:#fff;
  border:1px solid var(--line);
  font-size:13.5px;
  color:var(--text);
  font-weight:500;
}
.chip .dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--teal);
  flex:0 0 auto;
}

/* ===================== 导航 ===================== */
.site-header{
  position:sticky;
  top:0;
  z-index:200;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 3px rgba(16,50,80,.04);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,50,80,.1);}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:var(--nav-h);
}
.header-left{display:flex;align-items:center;gap:38px;min-width:0;}
.header-right{display:flex;align-items:center;gap:14px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--title);
  font-weight:700;
  font-size:19px;
  letter-spacing:.01em;
  flex:0 0 auto;
}
.brand:hover{color:var(--title);}
.brand-mark{
  width:34px;height:34px;
  border-radius:10px;
  background:linear-gradient(140deg,var(--primary),#1E7FCB);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  flex:0 0 auto;
}
.brand-mark svg{width:19px;height:19px;}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:20px 14px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:14px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s ease;
}
.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);height:3px;bottom:12px;}
.search-box{
  display:flex;
  align-items:center;
  border-radius:var(--radius-pill);
  background:var(--primary-lighter);
  border:1px solid transparent;
  transition:border-color .2s ease, background-color .2s ease, width .25s ease;
  overflow:hidden;
}
.icon-btn{
  width:38px;height:38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  color:var(--muted);
  transition:color .2s ease, background-color .2s ease;
  flex:0 0 auto;
}
.icon-btn:hover{color:var(--primary);background:rgba(20,98,168,.08);}
.icon-btn svg{width:18px;height:18px;}
.search-input{
  width:0;
  border:none;
  background:transparent;
  outline:none;
  font-size:14px;
  padding:0;
  transition:width .25s ease, padding .25s ease;
}
.search-box.is-open{border-color:#C6DCEF;background:#fff;}
.search-box.is-open .search-input{width:180px;padding:0 14px 0 4px;}
.menu-toggle{
  display:none;
  width:40px;height:40px;
  border-radius:10px;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  background:var(--primary-lighter);
}
.menu-toggle span{
  display:block;
  width:18px;height:2px;
  border-radius:2px;
  background:var(--primary);
  transition:transform .24s ease, opacity .24s ease;
}
.menu-toggle.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle.is-active span:nth-child(2){opacity:0;}
.menu-toggle.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* 移动抽屉 */
.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:8px 0 20px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .drawer-link{
  display:block;
  padding:14px 24px;
  font-size:16px;
  color:var(--text);
  border-bottom:1px solid var(--line);
  font-weight:500;
}
.mobile-drawer .drawer-link.is-active{color:var(--primary);font-weight:600;background:var(--primary-lighter);}
.mobile-drawer .drawer-cta{padding:18px 24px 0;}
.mobile-drawer .btn{width:100%;}

/* ===================== 首屏 ===================== */
.hero{
  position:relative;
  background:linear-gradient(180deg,#FFFFFF 0%, #F6F8FB 100%);
  padding:56px 0 88px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(20,98,168,.06) 1px, transparent 1px);
  background-size:22px 22px;
  pointer-events:none;
}
.hero-inner{
  position:relative;
  display:grid;
  grid-template-columns:52fr 48fr;
  gap:48px;
  align-items:center;
}
.hero-copy .hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 16px;
  border-radius:var(--radius-pill);
  background:var(--primary-light);
  color:var(--primary);
  font-size:13px;
  font-weight:600;
  margin-bottom:22px;
}
.hero-copy h1{margin-bottom:20px;}
.hero-copy h1 em{
  font-style:normal;
  color:var(--primary);
}
.hero-sub{
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  max-width:560px;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-trust{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.hero-visual{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-md);
  aspect-ratio:4 / 3;
}
.hero-visual img{
  width:100%;
  height:100%;
  object-fit:cover;
  display:block;
}
.hero-visual::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(160deg, rgba(20,98,168,.28) 0%, rgba(20,98,168,.08) 55%, rgba(21,156,140,.16) 100%);
  pointer-events:none;
}
.hero-visual__tag{
  position:absolute;
  left:20px;
  bottom:20px;
  z-index:2;
  background:rgba(255,255,255,.94);
  border-radius:10px;
  padding:12px 18px;
  font-size:13.5px;
  color:var(--title);
  font-weight:600;
  box-shadow:0 8px 24px rgba(16,50,80,.14);
}
.hero-visual__tag span{display:block;font-weight:400;font-size:12.5px;color:var(--muted);margin-top:2px;}

/* ===================== 指标看板 ===================== */
.kpi-card{
  background:#fff;
  border-radius:var(--radius);
  border:1px solid var(--line);
  padding:26px 24px;
  height:100%;
  box-shadow:var(--shadow-sm);
  transition:transform .24s ease, box-shadow .24s ease, border-color .24s ease;
}
.kpi-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-md);
  border-color:#D6E5F3;
}
.kpi-value{
  font-family:var(--font-num);
  font-size:clamp(32px,3.2vw,42px);
  font-weight:700;
  line-height:1;
  color:var(--primary);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
  margin-bottom:12px;
}
.kpi-value small{
  font-size:16px;
  font-weight:600;
  color:var(--teal);
  margin-left:5px;
  letter-spacing:0;
}
.kpi-name{font-size:15.5px;font-weight:600;color:var(--title);margin-bottom:8px;}
.kpi-note{font-size:13.5px;color:var(--muted);line-height:1.7;margin-bottom:10px;}
.kpi-source{font-size:12px;color:#9AABBD;letter-spacing:.02em;}

/* ===================== 服务矩阵 ===================== */
.svc-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:var(--gutter);
}
.svc-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  box-shadow:var(--shadow-sm);
  transition:transform .24s ease, box-shadow .24s ease, border-color .24s ease;
  display:flex;
  flex-direction:column;
  height:100%;
}
.svc-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#D6E5F3;}
.svc-card--main{grid-column:span 2;padding:0;overflow:hidden;flex-direction:row;}
.svc-main-figure{
  flex:0 0 42%;
  min-height:280px;
  position:relative;
  overflow:hidden;
}
.svc-main-figure img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.svc-main-body{padding:32px 32px 30px;display:flex;flex-direction:column;justify-content:center;}
.svc-main-body h3{margin-bottom:12px;font-size:23px;}
.svc-main-body p{color:var(--text);font-size:15px;line-height:1.8;margin-bottom:16px;}
.svc-icon{
  width:44px;height:44px;
  border-radius:12px;
  background:var(--primary-lighter);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-bottom:18px;
  color:var(--primary);
}
.svc-icon svg{width:22px;height:22px;}
.svc-card h3{font-size:18px;margin-bottom:10px;}
.svc-card p{font-size:14.5px;line-height:1.78;color:var(--muted);margin-bottom:18px;}
.svc-card .text-link{margin-top:auto;}

/* ===================== 对比区 ===================== */
.compare{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.compare-head{
  display:grid;
  grid-template-columns:1fr 1fr;
  background:var(--panel);
  border-bottom:1px solid var(--line);
}
.compare-head div{
  padding:18px 26px;
  font-size:14.5px;
  font-weight:600;
  color:var(--muted);
  letter-spacing:.04em;
}
.compare-head div:last-child{
  background:var(--primary-light);
  color:var(--primary);
}
.compare-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  border-bottom:1px solid var(--line);
}
.compare-row:nth-child(even){background:#FBFCFE;}
.compare-row:last-child{border-bottom:none;}
.compare-cell{
  padding:18px 26px;
  font-size:14.5px;
  line-height:1.72;
  display:flex;
  align-items:flex-start;
  gap:10px;
}
.compare-cell--label{color:var(--muted);}
.compare-cell--label::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:#C9D6E3;
  margin-top:9px;
  flex:0 0 auto;
}
.compare-cell--good{
  color:var(--title);
  background:rgba(234,242,250,.5);
  border-left:3px solid var(--primary);
  font-weight:500;
}
.compare-cell--good::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--teal);
  margin-top:9px;
  flex:0 0 auto;
}
.compare-mobile-label{display:none;}

/* ===================== 流程时间线 ===================== */
.flow-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:var(--gutter);
  position:relative;
}
.flow-grid::before{
  content:"";
  position:absolute;
  top:26px;left:8%;right:8%;
  height:2px;
  background:linear-gradient(90deg,var(--primary-light),#BFD8EF,var(--primary-light));
  z-index:0;
}
.flow-item{
  position:relative;
  z-index:1;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px 24px;
  box-shadow:var(--shadow-sm);
  transition:transform .24s ease, box-shadow .24s ease;
}
.flow-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.flow-num{
  width:46px;height:46px;
  border-radius:50%;
  background:var(--primary);
  color:#fff;
  font-family:var(--font-num);
  font-weight:700;
  font-size:16px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-bottom:18px;
  box-shadow:0 0 0 6px #fff, 0 0 0 7px var(--primary-light);
}
.flow-item h3{font-size:17px;margin-bottom:10px;}
.flow-item p{font-size:14px;color:var(--muted);line-height:1.75;margin:0;}

/* ===================== 资讯列表（CMS） ===================== */
.news-grid{margin-top:0;}
.news-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  height:100%;
  display:flex;
  flex-direction:column;
  box-shadow:var(--shadow-sm);
  transition:transform .24s ease, box-shadow .24s ease, border-color .24s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#D6E5F3;}
.news-thumb{
  display:block;
  position:relative;
  aspect-ratio:16 / 10;
  overflow:hidden;
  background:var(--panel);
}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.news-meta{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:12px;
  font-size:12.5px;
  color:var(--muted);
}
.news-title{
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  color:var(--title);
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card:hover .news-title{color:var(--primary);}
.news-summary{
  font-size:14px;
  line-height:1.75;
  color:var(--muted);
  margin-bottom:18px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--muted);
}
.news-empty{
  background:#fff;
  border:1px dashed #CBDCEC;
  border-radius:var(--radius);
  padding:64px 24px;
  text-align:center;
  color:var(--muted);
}
.news-empty svg{width:40px;height:40px;color:#BCCFDF;margin-bottom:14px;}
.news-empty p{margin:0;font-size:15px;}

/* ===================== 口碑与保障 ===================== */
.quote-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px;
  height:100%;
  box-shadow:var(--shadow-sm);
  display:flex;
  flex-direction:column;
  transition:transform .24s ease, box-shadow .24s ease;
}
.quote-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.quote-mark{
  font-family:Georgia,serif;
  font-size:40px;
  line-height:1;
  color:#CFE1F1;
  margin-bottom:8px;
}
.quote-text{font-size:15px;line-height:1.82;color:var(--text);margin-bottom:20px;flex:1;}
.quote-from{
  display:flex;
  align-items:center;
  gap:10px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:13.5px;
  color:var(--muted);
}
.quote-avatar{
  width:34px;height:34px;
  border-radius:50%;
  background:var(--primary-light);
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-weight:700;
  font-size:13px;
  flex:0 0 auto;
}
.assure-list{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:var(--gutter);
  margin-top:36px;
}
.assure-item{
  display:flex;
  gap:14px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px 24px;
  box-shadow:var(--shadow-sm);
}
.assure-item svg{width:22px;height:22px;color:var(--teal);flex:0 0 auto;margin-top:4px;}
.assure-item h3{font-size:16px;margin-bottom:6px;}
.assure-item p{font-size:13.5px;color:var(--muted);line-height:1.72;margin:0;}

/* ===================== FAQ ===================== */
.faq-wrap{max-width:800px;margin:0 auto;}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .22s ease, box-shadow .22s ease;
}
.faq-item:hover{border-color:#CFE1F1;}
.faq-item[open]{
  border-color:#CFE1F1;
  box-shadow:var(--shadow-sm);
  border-left:3px solid var(--primary);
}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 26px;
  font-size:17px;
  font-weight:600;
  color:var(--title);
  cursor:pointer;
  list-style:none;
  line-height:1.55;
}
.faq-q::-webkit-details-marker{display:none;}
.faq-q::marker{content:"";}
.faq-arrow{
  width:26px;height:26px;
  border-radius:50%;
  background:var(--primary-lighter);
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex:0 0 auto;
  transition:transform .25s ease, background-color .25s ease;
  font-size:15px;
  line-height:1;
}
.faq-item[open] .faq-arrow{transform:rotate(90deg);background:var(--primary);color:#fff;}
.faq-a{padding:0 26px 22px;color:var(--text);font-size:15.5px;line-height:1.78;}
.faq-a p{margin:0;}

/* ===================== 转化表单 ===================== */
.contact-panel{
  position:relative;
  border-radius:16px;
  overflow:hidden;
  background:linear-gradient(120deg,#0F4C86 0%, #1462A8 58%, #147C74 100%);
  color:#fff;
}
.contact-panel::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.09) 1px, transparent 1px);
  background-size:24px 24px;
  pointer-events:none;
}
.contact-inner{
  position:relative;
  display:grid;
  grid-template-columns:1fr 1.05fr;
  gap:48px;
  padding:52px;
}
.contact-intro h2{color:#fff;margin-bottom:16px;}
.contact-intro p{color:rgba(255,255,255,.82);font-size:15px;line-height:1.85;}
.contact-points{margin-top:26px;display:flex;flex-direction:column;gap:12px;}
.contact-points li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14.5px;
  color:rgba(255,255,255,.9);
}
.contact-points svg{width:18px;height:18px;flex:0 0 auto;margin-top:5px;color:#7FE0D2;}
.form-card{
  background:#fff;
  border-radius:var(--radius);
  padding:30px;
  box-shadow:0 24px 60px rgba(8,32,56,.24);
}
.form-card h3{font-size:19px;margin-bottom:6px;}
.form-card .form-hint{font-size:13.5px;color:var(--muted);margin-bottom:22px;}
.field{margin-bottom:18px;}
.field label{
  display:block;
  font-size:13.5px;
  font-weight:600;
  color:var(--title);
  margin-bottom:8px;
}
.field label .req{color:#C8453A;margin-left:3px;}
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width:100%;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  padding:11px 14px;
  font-size:14.5px;
  color:var(--text);
  background:#FCFDFE;
  transition:border-color .2s ease, box-shadow .2s ease, background-color .2s ease;
  appearance:none;
}
.field select{
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%237A8CA0'%3E%3Cpath d='M4.5 6.5 8 10l3.5-3.5z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 12px center;
  background-size:16px;
  padding-right:36px;
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7;}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--primary);
  background:#fff;
  box-shadow:0 0 0 4px rgba(20,98,168,.13);
}
.field .field-error{
  display:none;
  align-items:center;
  gap:6px;
  font-size:12.5px;
  color:#C8453A;
  margin-top:7px;
}
.field.has-error .field-error{display:flex;}
.field.has-error input,
.field.has-error select,
.field.has-error textarea{border-color:#E0A9A3;background:#FFFAFA;}
.check-line{
  display:flex;
  align-items:flex-start;
  gap:9px;
  font-size:13px;
  color:var(--muted);
  line-height:1.65;
  margin-bottom:20px;
}
.check-line input{margin-top:4px;width:15px;height:15px;accent-color:var(--primary);flex:0 0 auto;}
.form-actions{display:flex;flex-direction:column;gap:12px;}
.form-actions .btn{width:100%;}
.form-tip{
  display:none;
  align-items:center;
  gap:8px;
  background:#EAF7F4;
  color:#0F7A6E;
  border:1px solid #BEE7E0;
  border-radius:var(--radius-btn);
  padding:11px 14px;
  font-size:13.5px;
  font-weight:600;
}
.form-tip.is-visible{display:flex;}

/* ===================== 页脚 ===================== */
.site-footer{
  background:#0F2740;
  color:#B9C9D8;
  padding:72px 0 0;
  position:relative;
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:26px 26px;
  pointer-events:none;
}
.footer-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:52px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:19px;
  font-weight:700;
  margin-bottom:16px;
}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);}
.footer-brand:hover{color:#fff;}
.footer-desc{font-size:14px;line-height:1.85;color:#93A8BC;max-width:340px;margin-bottom:20px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{
  font-size:12px;
  padding:4px 12px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.08);
  color:#C3D3E2;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:600;
  margin-bottom:18px;
  letter-spacing:.04em;
}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{
  color:#93A8BC;
  font-size:14px;
  transition:color .2s ease;
}
.footer-col ul li a:hover{color:#8FD8F0;text-decoration:underline;}
.footer-contact li{
  font-size:14px;
  color:#93A8BC;
  margin-bottom:12px;
  line-height:1.72;
}
.footer-contact li strong{color:#D4E2EE;font-weight:600;}
.qr-box{
  width:112px;height:112px;
  border-radius:12px;
  background:
    repeating-linear-gradient(0deg, rgba(255,255,255,.16) 0 2px, transparent 2px 7px),
    repeating-linear-gradient(90deg, rgba(255,255,255,.16) 0 2px, transparent 2px 7px),
    rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);
  display:flex;
  align-items:center;
  justify-content:center;
  color:#C3D3E2;
  font-size:12px;
  margin-bottom:12px;
}
.qr-note{font-size:13px;color:#93A8BC;line-height:1.7;}
.footer-bottom{
  position:relative;
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:#7F94A8;
}

/* ===================== 响应式 ===================== */
@media screen and (max-width:1199px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-col--qr{grid-column:span 3;}
  .search-box.is-open .search-input{width:140px;}
}
@media screen and (max-width:991px){
  :root{--nav-h:60px;}
  .main-nav{display:none;}
  .menu-toggle{display:flex;}
  .header-left{gap:18px;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .hero{padding:40px 0 64px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-visual{aspect-ratio:16 / 10;}
  .svc-grid{grid-template-columns:repeat(2,1fr);}
  .svc-card--main{grid-column:span 2;flex-direction:column;}
  .svc-main-figure{flex:0 0 auto;height:220px;min-height:0;}
  .flow-grid{grid-template-columns:repeat(2,1fr);}
  .flow-grid::before{display:none;}
  .assure-list{grid-template-columns:1fr;}
  .contact-inner{grid-template-columns:1fr;padding:38px;gap:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-col--qr{grid-column:span 2;}
}
@media screen and (max-width:767px){
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:32px;}
  .compare-head{grid-template-columns:1fr;display:none;}
  .compare-row{grid-template-columns:1fr;}
  .compare-cell{padding:14px 20px;}
  .compare-cell--good{border-left:3px solid var(--primary);}
  .compare-mobile-label{
    display:inline-block;
    font-size:11.5px;
    font-weight:600;
    letter-spacing:.1em;
    color:var(--primary);
    background:var(--primary-light);
    border-radius:var(--radius-pill);
    padding:2px 10px;
    margin-right:8px;
    vertical-align:1px;
  }
  .compare-cell--label .compare-mobile-label{color:var(--muted);background:#EDF2F7;}
  .faq-q{font-size:15.5px;padding:17px 20px;}
  .faq-a{padding:0 20px 20px;font-size:15px;}
  .search-box{display:none;}
}
@media screen and (max-width:575px){
  :root{--gutter:16px;}
  .container{padding-left:16px;padding-right:16px;}
  .row .columns{padding-left:8px;padding-right:8px;}
  .section{padding:52px 0;}
  .section--tight{padding:46px 0;}
  .hero{padding:30px 0 52px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;}
  .svc-grid{grid-template-columns:1fr;}
  .svc-card--main{grid-column:span 1;}
  .svc-main-body{padding:24px;}
  .flow-grid{grid-template-columns:1fr;}
  .contact-inner{padding:26px 20px;}
  .form-card{padding:22px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-col--qr{grid-column:span 1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .kpi-value{font-size:32px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --primary:#1462A8;
  --primary-dark:#0E4C86;
  --primary-soft:#EAF2FA;
  --primary-soft-2:#F2F7FC;
  --teal:#159C8C;
  --amber:#D98A2B;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --panel:#EEF3F8;
  --title:#0F2740;
  --text:#3C5468;
  --muted:#7A8CA0;
  --line:#E1E9F0;
  --radius:12px;
  --radius-btn:8px;
  --shadow:0 2px 6px rgba(16,50,80,.06), 0 12px 28px rgba(16,50,80,.08);
  --shadow-hover:0 4px 10px rgba(16,50,80,.09), 0 18px 38px rgba(16,50,80,.13);
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{color:var(--title);font-weight:700;margin:0;line-height:1.35;letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
a:hover{color:var(--primary-dark)}
img{max-width:100%;display:block}
button{font-family:inherit}
input,select,textarea{font-family:inherit;font-size:15px}
table{border-collapse:collapse}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--gutter)}
.skip{position:absolute;left:-9999px}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(16,50,80,.04);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 22px rgba(16,50,80,.12)}
.header-inner{display:flex;align-items:center;gap:26px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
}
.brand-mark svg{width:20px;height:20px}
.brand-name{font-size:19px;font-weight:700;color:var(--title);letter-spacing:.4px}
.brand:hover .brand-name{color:var(--primary)}

.main-nav{display:flex;align-items:center;gap:4px;margin-right:auto}
.nav-link{
  position:relative;display:inline-block;padding:9px 13px;border-radius:6px;
  font-size:15px;color:var(--text);font-weight:500;
}
.nav-link::after{
  content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;
  background:var(--primary);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .24s ease;
}
.nav-link:hover{color:var(--primary);background:var(--primary-soft-2)}
.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);height:3px;bottom:0}

.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;
  color:var(--text);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:all .2s ease;
}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft-2)}
.nav-toggle{display:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 20px rgba(20,98,168,.24)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:var(--primary-dark)}
.btn-ghost{background:var(--panel);color:var(--title);border-color:transparent}
.btn-ghost:hover{background:#E3EBF3;color:var(--primary-dark)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:var(--radius-btn)}
.btn-block{width:100%;margin-bottom:10px}
.btn-block:last-child{margin-bottom:0}
.btn[disabled]{opacity:.45;cursor:not-allowed}

/* ---------- chip ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;background:var(--primary-soft);color:var(--primary);
  font-size:12.5px;font-weight:600;letter-spacing:.2px;
}
.chip--teal{background:rgba(21,156,140,.12);color:#0F7C70}

/* ---------- mobile drawer ---------- */
.mobile-drawer{
  display:none;position:fixed;left:0;right:0;top:64px;z-index:79;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 16px 30px rgba(16,50,80,.14);
  padding:14px var(--gutter) 22px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer .nav-link{display:block;margin:2px 0;padding:12px 12px;font-size:16px}
.mobile-drawer .nav-link::after{display:none}
.mobile-drawer .nav-link.is-active{background:var(--primary-soft)}
.mobile-drawer .btn{margin-top:12px}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#F4F8FC 0%,#EDF4FA 100%);
  border-bottom:1px solid var(--line);
  padding:26px 0 42px;
}
.article-hero::after{
  content:"";position:absolute;right:0;top:0;bottom:0;width:44%;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.13;pointer-events:none;
  -webkit-mask-image:linear-gradient(to right,rgba(0,0,0,0),rgba(0,0,0,.85));
  mask-image:linear-gradient(to right,rgba(0,0,0,0),rgba(0,0,0,.85));
}
.breadcrumb{
  position:relative;z-index:1;
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);margin-bottom:22px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:#C4D2DE}
.breadcrumb .current{
  max-width:340px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text);
}
.article-head{position:relative;z-index:1;max-width:880px}
.article-head h1{
  font-size:clamp(28px,3.6vw,41px);
  line-height:1.3;margin:16px 0 18px;letter-spacing:.3px;
}
.meta-row{display:flex;flex-wrap:wrap;gap:8px 22px;font-size:13px;color:var(--muted)}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-row i{color:var(--primary);font-size:12px}
.article-lead{
  margin-top:20px;padding-left:16px;border-left:3px solid var(--primary);
  font-size:16px;line-height:1.85;color:#2E4A63;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}

/* ---------- layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;
  gap:44px;align-items:start;
  padding:56px 0 20px;
}
.article-main{min-width:0}

/* ---------- article body ---------- */
.cms-article{
  max-width:820px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:38px 42px 42px;
}
.article-body{font-size:16px;line-height:1.85;color:var(--text)}
.article-body p{margin:0 0 16px}
.article-body h2{
  font-size:24px;line-height:1.45;margin:34px 0 14px;padding-left:14px;
  border-left:3px solid var(--primary);
}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:19px;margin:26px 0 12px;color:var(--title)}
.article-body h4{font-size:17px;margin:20px 0 10px}
.article-body ul,.article-body ol{margin:0 0 18px}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:9px;line-height:1.82}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:12px;width:6px;height:6px;border-radius:50%;background:var(--primary);
}
.article-body ol{counter-reset:li;padding-left:0}
.article-body ol li{position:relative;padding-left:28px;margin-bottom:9px;counter-increment:li}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:6px;width:19px;height:19px;border-radius:5px;
  background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:0 0 18px;padding:16px 20px;background:var(--primary-soft);
  border-left:3px solid var(--primary);border-radius:0 10px 10px 0;color:#274A66;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius);width:100%;height:auto;margin:10px 0}
.article-body figure{margin:22px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--muted);margin-top:10px}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--primary-dark)}
.article-body table{width:100%;margin:0 0 20px;font-size:14.5px;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.article-body th{background:var(--primary-soft);color:var(--title);font-weight:600}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;line-height:1.7}
.article-body tbody tr:nth-child(even){background:#FAFCFE}
.article-body hr{border:none;border-top:1px solid var(--line);margin:28px 0}
.article-body strong{color:var(--title)}
.pull-note{
  margin:22px 0;padding:14px 18px;background:var(--primary-soft-2);border:1px solid var(--line);
  border-radius:10px;font-size:14.5px;color:#2E4A63;
}

.empty-state{
  max-width:820px;background:#fff;border:1px dashed #C9D8E6;border-radius:var(--radius);
  padding:56px 26px;text-align:center;box-shadow:var(--shadow);
}
.empty-state i{font-size:30px;color:#B8CADA;display:block;margin-bottom:14px}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{font-size:14.5px;color:var(--muted);margin-bottom:20px}

/* ---------- aside ---------- */
.article-aside{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.aside-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:22px;
}
.aside-card--soft{background:var(--primary-soft-2)}
.aside-title{font-size:16px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.aside-title::before{
  content:"";width:4px;height:15px;border-radius:2px;background:var(--primary);display:inline-block;
}
.rel-list li{margin-bottom:6px}
.rel-list li:last-child{margin-bottom:0}
.rel-list a{
  display:flex;gap:12px;align-items:center;padding:9px;border-radius:10px;color:var(--title);
}
.rel-list a:hover{background:var(--primary-soft-2);color:var(--primary)}
.rel-list img{
  flex:0 0 auto;width:78px;height:58px;object-fit:cover;border-radius:8px;
  aspect-ratio:4 / 3;background:var(--panel);
}
.rel-list .rel-text{min-width:0}
.rel-list strong{
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  font-size:14.5px;font-weight:600;line-height:1.55;color:var(--title);
}
.rel-list a:hover strong{color:var(--primary)}
.rel-list em{display:block;font-style:normal;font-size:12.5px;color:var(--muted);margin-top:4px}
.aside-desc{font-size:14px;line-height:1.8;color:var(--muted);margin-bottom:16px}

/* ---------- prev / next ---------- */
.prev-next{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;
  max-width:820px;margin-top:28px;
}
.pn-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;box-shadow:var(--shadow);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.pn-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#CFE0EF}
.pn-label{display:block;font-size:12.5px;color:var(--muted);margin-bottom:8px;letter-spacing:.4px}
.pn-title{display:block;font-size:15.5px;font-weight:600;color:var(--title);line-height:1.6}
.pn-card:hover .pn-title{color:var(--primary)}
.pn-card--next{text-align:right}

/* ---------- cta band ---------- */
.cta-band{
  margin:64px 0 84px;border-radius:16px;overflow:hidden;position:relative;
  background:linear-gradient(100deg,#1462A8 0%,#0E4C86 100%);
  color:#fff;padding:38px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;inset:0;opacity:.12;pointer-events:none;
  background-image:radial-gradient(#ffffff 1px,transparent 1px);
  background-size:18px 18px;
}
.cta-copy{position:relative;z-index:1;max-width:640px}
.cta-copy h2{color:#fff;font-size:clamp(21px,2.4vw,26px);margin-bottom:10px}
.cta-copy p{color:rgba(255,255,255,.86);font-size:14.5px;line-height:1.8}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap}
.btn-white{background:#fff;color:var(--primary)}
.btn-white:hover{background:#EAF2FA;color:var(--primary-dark)}
.btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.7)}
.btn-line:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}

/* ---------- footer ---------- */
.site-footer{background:#0F2740;color:#A9BDD1;padding:64px 0 26px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand span:last-child{font-size:18px;font-weight:700;color:#fff;letter-spacing:.4px}
.footer-brand .brand-mark{background:var(--primary);color:#fff}
.footer-desc{line-height:1.85;color:#9FB4C8;margin-bottom:18px}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px}
.footer-tags span{
  padding:4px 11px;border-radius:999px;background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.12);font-size:12.5px;color:#B9CBDB;
}
.footer-col h4{color:#fff;font-size:15.5px;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:#A9BDD1}
.footer-col ul a:hover{color:#fff;text-decoration:underline}
.footer-contact li{color:#9FB4C8;line-height:1.8}
.footer-contact strong{color:#D5E2EE;font-weight:600}
.qr-box{
  width:104px;height:104px;border-radius:12px;background:rgba(255,255,255,.08);
  border:1px dashed rgba(255,255,255,.28);color:#C8D8E6;font-size:13px;
  display:flex;align-items:center;justify-content:center;margin-bottom:12px;
}
.qr-note{color:#8FA5BA;font-size:13px;line-height:1.75}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA5BA;
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px}
  .article-aside{position:static;flex-direction:row;flex-wrap:wrap}
  .aside-card{flex:1 1 300px}
  .cms-article{max-width:none}
  .prev-next{max-width:none}
}
@media (max-width:991px){
  :root{--gutter:24px}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-cta{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .article-hero{padding:22px 0 34px}
  .cms-article{padding:30px 26px 34px}
  .cta-band{padding:32px 28px;margin:52px 0 64px}
}
@media (max-width:767px){
  .article-layout{padding:36px 0 12px}
  .prev-next{grid-template-columns:1fr}
  .pn-card--next{text-align:left}
  .article-body h2{font-size:21px}
  .article-body h3{font-size:17.5px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:575px){
  :root{--gutter:16px}
  .header-inner{height:56px;gap:14px}
  .brand-name{font-size:17px}
  .mobile-drawer{top:56px}
  .site-header{position:sticky}
  .article-head h1{font-size:26px}
  .cms-article{padding:24px 18px 28px;border-radius:10px}
  .breadcrumb .current{max-width:180px}
  .aside-card{padding:18px}
  .cta-actions .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --brand:#1462A8;
  --brand-dark:#0E4C86;
  --brand-soft:#EAF2FA;
  --brand-soft-2:#F2F7FC;
  --accent:#159C8C;
  --amber:#D98A2B;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --panel:#EEF3F8;
  --ink:#0F2740;
  --text:#3C5468;
  --muted:#7A8CA0;
  --line:#E1E9F0;
  --radius:12px;
  --radius-sm:8px;
  --radius-pill:999px;
  --shadow-sm:0 2px 6px rgba(16,50,80,.06),0 12px 28px rgba(16,50,80,.08);
  --shadow-md:0 4px 12px rgba(16,50,80,.09),0 18px 40px rgba(16,50,80,.13);
  --gutter:24px;
  --section-y:92px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
}
img{display:block;max-width:100%;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover,a:focus{color:var(--brand-dark);}
h1,h2,h3,h4{color:var(--ink);font-weight:700;line-height:1.32;margin:0 0 14px;letter-spacing:.01em;}
h1{font-size:clamp(30px,4vw,48px);}
h2{font-size:clamp(24px,2.6vw,32px);}
h3{font-size:20px;}
h4{font-size:17px;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{appearance:none;background:none;border:0;font:inherit;color:inherit;cursor:pointer;}
input,select,textarea{font:inherit;color:inherit;}
table{border-collapse:separate;border-spacing:0;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 var(--gutter);
}

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff;}
.btn-primary:hover,.btn-primary:focus{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 8px 18px rgba(20,98,168,.28);}
.btn-outline{background:#fff;border-color:#BCD4E9;color:var(--brand);}
.btn-outline:hover,.btn-outline:focus{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark);transform:translateY(-1px);}
.btn-light{background:#fff;border-color:#fff;color:var(--brand);}
.btn-light:hover,.btn-light:focus{background:var(--brand-soft);border-color:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px);}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14.5px;
  font-weight:600;
  color:var(--brand);
}
.btn-text::after{content:"→";transition:transform .18s ease;}
.btn-text:hover::after{transform:translateX(3px);}
.btn:focus-visible,.btn-text:focus-visible,.icon-btn:focus-visible,.nav-link:focus-visible,.anchor-link:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(16,50,80,.04);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 22px rgba(16,50,80,.10);}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:64px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:19px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:.01em;
}
.brand:hover{color:var(--brand);}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:10px;
  background:var(--brand-soft);
  color:var(--brand);
  flex:none;
}
.brand-mark svg{width:20px;height:20px;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:14px;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:64px;
  padding:0 14px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:16px;
  height:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand);font-weight:600;}
.nav-link.is-active::after{left:0;right:0;bottom:0;height:3px;transform:scaleX(1);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  color:var(--text);
  background:#fff;
  transition:border-color .18s ease,color .18s ease,background-color .18s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft-2);}
.icon-btn svg{width:18px;height:18px;}
.header-actions .btn{height:42px;padding:0 20px;font-size:14.5px;}

.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:4px;width:40px;height:40px;border-radius:var(--radius-sm);border:1px solid var(--line);padding:0 10px;}
.nav-toggle span{display:block;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.mobile-drawer{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:14px var(--gutter) 22px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .drawer-link{
  display:block;
  padding:12px 4px;
  font-size:16px;
  color:var(--text);
  border-bottom:1px solid var(--line);
}
.mobile-drawer .drawer-link:hover{color:var(--brand);}
.mobile-drawer .drawer-cta{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.mobile-drawer .btn{width:100%;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:64px 0 72px;
  background:linear-gradient(180deg,#FFFFFF 0%,#F6F8FB 100%);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(20,98,168,.07) 1px,transparent 1px);
  background-size:24px 24px;
  opacity:.75;
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;
  grid-template-columns:52% 48%;
  gap:44px;
  align-items:center;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:var(--radius-pill);
  background:var(--brand-soft);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
  margin-bottom:18px;
}
.hero-eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;}
.hero-title{margin-bottom:18px;}
.hero-lead{
  font-size:17px;
  line-height:1.8;
  color:var(--text);
  margin-bottom:16px;
}
.hero-note{
  font-size:15px;
  line-height:1.85;
  color:var(--muted);
  padding-left:16px;
  border-left:3px solid var(--brand-soft);
  margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;}
.trust-item{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:7px 14px;
  border-radius:var(--radius-pill);
  background:#fff;
  border:1px solid var(--line);
  font-size:13.5px;
  color:var(--text);
}
.trust-item svg{width:15px;height:15px;color:var(--accent);flex:none;}
.hero-media{
  position:relative;
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-md);
}
.hero-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}
.hero-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(160deg,rgba(20,98,168,.28),rgba(14,76,134,.10));
}
.hero-media-badge{
  position:absolute;
  left:20px;
  bottom:20px;
  z-index:2;
  background:rgba(255,255,255,.94);
  border-radius:var(--radius-sm);
  padding:12px 16px;
  font-size:13.5px;
  color:var(--ink);
  font-weight:600;
  box-shadow:0 6px 16px rgba(16,50,80,.14);
}
.hero-media-badge span{display:block;font-weight:400;color:var(--muted);font-size:12.5px;margin-top:2px;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-y) 0;}
.section--tight{padding:56px 0;}
.section--alt{background:#fff;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-kicker{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--accent);
  margin-bottom:10px;
  text-transform:uppercase;
}
.section-sub{font-size:16px;color:var(--muted);line-height:1.8;}

/* ---------- 保障卡 ---------- */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gutter);}
.trust-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 24px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.trust-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);}
.trust-card .tc-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:42px;
  height:42px;
  border-radius:12px;
  background:var(--brand-soft);
  color:var(--brand);
  margin-bottom:14px;
}
.trust-card .tc-icon svg{width:21px;height:21px;}
.trust-card h3{font-size:17px;margin-bottom:8px;}
.trust-card p{font-size:14.5px;color:var(--muted);line-height:1.75;margin:0;}

/* ---------- Z 字条目 + 粘性锚点 ---------- */
.z-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 264px;
  gap:48px;
  align-items:start;
}
.z-item{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:36px;
  align-items:center;
  padding:38px 0;
  border-bottom:1px dashed var(--line);
  scroll-margin-top:96px;
}
.z-item:first-child{padding-top:0;}
.z-item:last-child{border-bottom:0;padding-bottom:0;}
.z-item--reverse .z-media{order:2;}
.z-media{
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  background:var(--panel);
}
.z-media img{width:100%;aspect-ratio:16/11;object-fit:cover;transition:transform .4s ease;}
.z-item:hover .z-media img{transform:scale(1.03);}
.z-index{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:30px;
  height:24px;
  padding:0 9px;
  border-radius:var(--radius-pill);
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12.5px;
  font-weight:700;
  margin-bottom:12px;
  font-variant-numeric:tabular-nums;
}
.z-body h3{font-size:22px;margin-bottom:12px;}
.z-body p{font-size:15.5px;line-height:1.85;color:var(--text);}
.z-list{margin:16px 0 18px;}
.z-list li{
  position:relative;
  padding-left:20px;
  font-size:14.5px;
  color:var(--text);
  line-height:1.9;
}
.z-list li::before{
  content:"";
  position:absolute;
  left:2px;
  top:12px;
  width:6px;
  height:6px;
  border-radius:2px;
  background:var(--accent);
}

.anchor-nav{
  position:sticky;
  top:88px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:20px;
  box-shadow:var(--shadow-sm);
}
.anchor-nav h2{
  font-size:13px;
  letter-spacing:.12em;
  color:var(--muted);
  font-weight:600;
  margin-bottom:12px;
}
.anchor-link{
  display:block;
  padding:9px 12px;
  border-radius:var(--radius-sm);
  border-left:3px solid transparent;
  font-size:14px;
  color:var(--text);
  line-height:1.5;
}
.anchor-link:hover{background:var(--brand-soft-2);color:var(--brand);}
.anchor-link.is-current{
  background:var(--brand-soft);
  border-left-color:var(--brand);
  color:var(--brand);
  font-weight:600;
}
.anchor-nav-foot{
  margin-top:16px;
  padding-top:16px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
  line-height:1.7;
}

/* ---------- 表格 ---------- */
.table-scroll{overflow-x:auto;border-radius:var(--radius);}
.spec-table{
  width:100%;
  min-width:720px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  font-size:15px;
}
.spec-table th{
  background:var(--brand-soft-2);
  color:var(--ink);
  font-weight:600;
  font-size:14px;
  text-align:left;
  padding:16px 20px;
  border-bottom:1px solid var(--line);
  letter-spacing:.02em;
}
.spec-table td{
  padding:16px 20px;
  border-bottom:1px solid var(--line);
  color:var(--text);
  line-height:1.7;
  vertical-align:top;
}
.spec-table tbody tr:nth-child(even) td{background:#FAFCFE;}
.spec-table tbody tr:hover td{background:var(--brand-soft);}
.spec-table tbody tr:last-child td{border-bottom:0;}
.spec-table td:first-child{color:var(--ink);font-weight:600;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{
  position:relative;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius);
  margin-bottom:14px;
  overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:3px;
  background:var(--brand);
  transform:scaleY(0);
  transform-origin:top center;
  transition:transform .22s ease;
}
.faq-item[open]{box-shadow:var(--shadow-sm);border-color:#CFE0EF;}
.faq-item[open]::before{transform:scaleY(1);}
.faq-item summary{
  position:relative;
  cursor:pointer;
  list-style:none;
  padding:20px 58px 20px 24px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";
  position:absolute;
  right:26px;
  top:50%;
  width:9px;
  height:9px;
  border-right:2px solid var(--brand);
  border-bottom:2px solid var(--brand);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-45deg);}
.faq-answer{
  padding:0 26px 22px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--text);
}
.faq-answer p{margin:0;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--brand);
  border-radius:16px;
  padding:48px 44px;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:40px;
  align-items:center;
  box-shadow:0 18px 42px rgba(14,76,134,.24);
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:26px 26px;
  opacity:.6;
  pointer-events:none;
}
.cta-copy{position:relative;}
.cta-copy h2{color:#fff;margin-bottom:14px;}
.cta-copy p{color:rgba(255,255,255,.86);font-size:15.5px;line-height:1.85;margin-bottom:22px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-panel{
  position:relative;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);
  border-radius:var(--radius);
  padding:24px;
}
.cta-panel h3{color:#fff;font-size:16px;margin-bottom:14px;}
.cta-panel ul li{
  display:flex;
  gap:10px;
  font-size:14.5px;
  color:rgba(255,255,255,.9);
  padding:9px 0;
  border-bottom:1px dashed rgba(255,255,255,.24);
  line-height:1.7;
}
.cta-panel ul li:last-child{border-bottom:0;}
.cta-panel ul li strong{color:#fff;font-weight:600;flex:none;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink);
  color:#A9BDD0;
  margin-top:var(--section-y);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1.2fr 1fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:19px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.footer-brand:hover{color:#7FB6E3;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#8FC2EC;}
.footer-desc{font-size:14px;line-height:1.85;color:#9EB3C7;margin-bottom:16px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{
  padding:5px 12px;
  border-radius:var(--radius-pill);
  background:rgba(255,255,255,.08);
  color:#B9CBDC;
  font-size:12.5px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{font-size:14.5px;color:#A9BDD0;}
.footer-col ul li a:hover{color:#7FB6E3;text-decoration:underline;}
.footer-contact li{font-size:14.5px;color:#9EB3C7;line-height:1.8;margin-bottom:10px;}
.footer-contact li strong{color:#D8E4EE;font-weight:600;}
.footer-col--qr .qr-box{
  width:96px;
  height:96px;
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.10);
  border:1px dashed rgba(255,255,255,.32);
  display:flex;
  align-items:center;
  justify-content:center;
  color:#B9CBDC;
  font-size:13px;
  margin-bottom:14px;
}
.qr-note{font-size:13px;color:#8FA5BA;line-height:1.75;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:#8699AC;
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .z-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .anchor-nav{
    position:static;
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    align-items:center;
    padding:14px;
  }
  .anchor-nav h2{width:100%;margin-bottom:6px;}
  .anchor-link{border-left:0;background:var(--brand-soft-2);padding:8px 14px;}
  .anchor-link.is-current{border-left:0;}
  .anchor-nav-foot{display:none;}
}
@media screen and (max-width:991px){
  :root{--section-y:64px;}
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .header-actions .icon-btn{display:none;}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .hero-media img{aspect-ratio:16/9;}
  .trust-grid{grid-template-columns:repeat(2,1fr);}
  .z-item{grid-template-columns:minmax(0,1fr);gap:22px;padding:30px 0;}
  .z-item--reverse .z-media{order:0;}
  .cta-band{grid-template-columns:minmax(0,1fr);padding:36px 28px;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
}
@media screen and (max-width:575px){
  :root{--section-y:52px;--gutter:16px;}
  body{font-size:15.5px;}
  .header-inner{height:56px;gap:12px;}
  .header-actions .btn{display:none;}
  .hero-eyebrow{font-size:12px;}
  .hero-lead{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .trust-grid{grid-template-columns:repeat(2,1fr);gap:14px;}
  .trust-card{padding:20px 18px;}
  .trust-card h3{font-size:16px;}
  .z-body h3{font-size:19px;}
  .faq-item summary{font-size:16px;padding:17px 52px 17px 18px;}
  .faq-answer{padding:0 18px 18px;}
  .cta-band{padding:28px 20px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1462A8;
  --c-primary-dark:#0E4C86;
  --c-primary-50:#EAF2FA;
  --c-primary-25:#F2F7FC;
  --c-teal:#159C8C;
  --c-amber:#D98A2B;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --panel:#EEF3F8;
  --ink:#0F2740;
  --body:#3C5468;
  --muted:#7A8CA0;
  --line:#E1E9F0;
  --r-card:12px;
  --r-btn:8px;
  --r-pill:999px;
  --shadow-1:0 2px 6px rgba(16,50,80,.06),0 12px 28px rgba(16,50,80,.08);
  --shadow-2:0 6px 14px rgba(16,50,80,.09),0 20px 44px rgba(16,50,80,.13);
  --container:1200px;
  --gutter:24px;
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--body);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c-primary);text-decoration:none;background-color:transparent;transition:color .2s ease;}
a:hover,a:focus{color:var(--c-primary-dark);text-decoration:none;}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:700;line-height:1.35;letter-spacing:.2px;}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
input,select,textarea{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:16px;padding-right:16px;}
.row{margin-left:-12px;margin-right:-12px;max-width:none;}
.row .column,.row .columns{padding-left:12px;padding-right:12px;float:none;}
.row::before,.row::after{display:none;}
.flex-row{display:flex;flex-wrap:wrap;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1.2px;color:var(--c-primary);
  background:var(--c-primary-50);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--c-teal);display:inline-block;}
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-head h2{font-size:clamp(24px,2.6vw,31px);margin-bottom:14px;}
.sec-head p{color:var(--body);font-size:16px;margin:0;}
.sec-head--center{margin-left:auto;margin-right:auto;text-align:center;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.4px;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(20,98,168,.22);}
.btn-primary:hover,.btn-primary:focus{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(20,98,168,.28);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--c-primary);border:1px solid #BFD6EA;}
.btn-outline:hover,.btn-outline:focus{background:var(--c-primary-25);border-color:var(--c-primary);color:var(--c-primary-dark);transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-lg{height:50px;padding:0 30px;font-size:16px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);
  font-size:14px;font-weight:600;padding:0;
}
.btn-link::after{content:"";width:14px;height:1.5px;background:currentColor;transition:width .2s ease;}
.btn-link:hover::after{width:22px;}

/* ============ 头部导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(16,50,80,.02);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(16,50,80,.09);}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:var(--nav-h);gap:24px;
}
.header-left{display:flex;align-items:center;gap:34px;min-width:0;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:19px;letter-spacing:.4px;}
.brand:hover{color:var(--c-primary);}
.brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--c-primary-50);
  color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;flex:0 0 36px;
}
.brand-mark svg{width:20px;height:20px;}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:inline-block;padding:8px 14px;border-radius:6px;
  color:var(--body);font-size:15px;font-weight:500;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left center;
  transition:transform .25s ease;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-25);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);height:3px;border-radius:3px;}
.header-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--line);
  color:var(--body);display:inline-flex;align-items:center;justify-content:center;
  transition:all .2s ease;background:#fff;
}
.icon-btn:hover{color:var(--c-primary);border-color:#BFD6EA;background:var(--c-primary-25);}
.icon-btn svg{width:18px;height:18px;}
.nav-toggle{display:none;width:40px;height:40px;border-radius:8px;border:1px solid var(--line);color:var(--ink);align-items:center;justify-content:center;background:#fff;}
.nav-toggle svg{width:20px;height:20px;}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:14px 16px 22px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer .nav-link{display:block;padding:12px 12px;font-size:16px;border-radius:8px;}
.mobile-drawer .nav-link::after{display:none;}
.mobile-drawer .nav-link.is-active{background:var(--c-primary-50);}
.mobile-drawer .drawer-cta{margin-top:14px;display:flex;flex-direction:column;gap:10px;}
.mobile-drawer .btn{width:100%;}

/* ============ 页头 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:calc(var(--nav-h) + 56px) 0 72px;
  background:
    radial-gradient(circle at 14% 20%, rgba(21,156,140,.07) 0, rgba(21,156,140,0) 42%),
    linear-gradient(180deg,#FFFFFF 0%,var(--c-primary-25) 100%);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(20,98,168,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(20,98,168,.05) 1px,transparent 1px);
  background-size:52px 52px;
  opacity:.7;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 85%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 85%);
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{display:flex;flex-wrap:wrap;align-items:center;}
.hero-copy{padding-right:26px;}
.hero-copy h1{font-size:clamp(28px,3.4vw,44px);margin-bottom:18px;max-width:16em;}
.hero-copy .lead{font-size:17px;line-height:1.85;color:var(--body);margin-bottom:20px;max-width:32em;}
.hero-note{
  display:flex;flex-wrap:wrap;gap:10px 22px;align-items:center;
  font-size:13.5px;color:var(--muted);margin-bottom:28px;
}
.hero-note span{display:inline-flex;align-items:center;gap:7px;}
.hero-note i{width:6px;height:6px;border-radius:50%;background:var(--c-teal);display:inline-block;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-visual{position:relative;padding-left:20px;}
.hero-visual .img-wrap{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-2);
}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);}
.hero-visual .img-wrap::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(20,98,168,.14),rgba(21,156,140,.10));
  border-radius:var(--r-card);
}
.hero-badge{
  position:absolute;left:34px;bottom:22px;z-index:3;
  background:#fff;border-radius:var(--r-card);padding:12px 18px;
  box-shadow:var(--shadow-1);border-left:3px solid var(--c-teal);
  font-size:13.5px;color:var(--ink);font-weight:600;
}
.hero-badge small{display:block;font-weight:400;color:var(--muted);font-size:12.5px;margin-top:2px;}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--panel{background:var(--panel);}
.section--white{background:#fff;}

/* 服务范围速览 */
.scope-grid{display:flex;flex-wrap:wrap;gap:20px;}
.scope-item{
  flex:1 1 220px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.scope-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-1);border-color:#CFE0F0;}
.scope-icon{
  width:42px;height:42px;border-radius:12px;background:var(--c-primary-50);
  color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.scope-icon svg{width:22px;height:22px;}
.scope-item h3{font-size:17px;margin-bottom:8px;}
.scope-item p{font-size:14px;color:var(--body);margin:0;line-height:1.75;}

/* 规格对照表 */
.spec-wrap{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);
}
.spec-table{width:100%;border-collapse:collapse;margin:0;background:#fff;}
.spec-table thead th{
  background:var(--c-primary-25);color:var(--ink);font-size:13.5px;font-weight:600;
  text-align:left;padding:16px 20px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.spec-table tbody td{
  padding:18px 20px;font-size:14.5px;color:var(--body);border-bottom:1px solid var(--line);
  vertical-align:top;line-height:1.7;
}
.spec-table tbody tr:nth-child(even){background:#FBFDFF;}
.spec-table tbody tr:hover{background:var(--c-primary-25);}
.spec-table tbody tr:last-child td{border-bottom:none;}
.spec-table td:first-child{color:var(--ink);font-weight:600;}
.spec-tag{
  display:inline-block;background:var(--c-primary-50);color:var(--c-primary);
  border-radius:var(--r-pill);font-size:12.5px;font-weight:600;padding:3px 11px;
}
.spec-tag--teal{background:rgba(21,156,140,.12);color:#0E7A6D;}

/* 双栏解释卡 */
.explain-grid{display:flex;flex-wrap:wrap;gap:24px;margin-top:32px;}
.explain-card{
  flex:1 1 400px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;position:relative;overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease;
}
.explain-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-primary);
}
.explain-card:nth-child(2)::before{background:var(--c-teal);}
.explain-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-1);}
.explain-card h3{font-size:19px;margin-bottom:12px;}
.explain-card p{font-size:15px;margin-bottom:14px;}
.explain-list li{
  position:relative;padding-left:20px;font-size:14.5px;color:var(--body);margin-bottom:8px;
}
.explain-list li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;
  background:var(--c-primary-50);border:1.5px solid var(--c-primary);
}
.explain-card:nth-child(2) .explain-list li::before{border-color:var(--c-teal);background:rgba(21,156,140,.12);}

/* 编号卡墙 */
.wall-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.num-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;display:flex;gap:20px;align-items:flex-start;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.num-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CFE0F0;}
.num-badge{
  flex:0 0 46px;width:46px;height:46px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-primary-50);color:var(--c-primary);
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:.5px;
}
.num-card:nth-child(3n+2) .num-badge{background:rgba(21,156,140,.12);color:#0E7A6D;}
.num-card:nth-child(3n) .num-badge{background:rgba(217,138,43,.12);color:#9A5D12;}
.num-card h3{font-size:18px;margin-bottom:8px;}
.num-card p{font-size:14.5px;margin-bottom:12px;color:var(--body);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  font-size:12.5px;color:var(--muted);background:var(--panel);
  border-radius:var(--r-pill);padding:3px 11px;
}

/* 对接说明 */
.dock-grid{display:flex;flex-wrap:wrap;gap:28px;align-items:flex-start;}
.dock-left{flex:1 1 380px;}
.dock-right{flex:1 1 460px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--shadow-1);}
.dock-left h2{font-size:clamp(24px,2.4vw,30px);margin-bottom:16px;}
.dock-left p{font-size:15.5px;}
.dock-steps li{
  display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed var(--line);
}
.dock-steps li:last-child{border-bottom:none;padding-bottom:0;}
.dock-steps .st-num{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;
  background:var(--c-primary);color:#fff;font-size:13px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;margin-top:4px;
}
.dock-steps strong{display:block;color:var(--ink);font-size:15.5px;margin-bottom:2px;}
.dock-steps span{font-size:14px;color:var(--body);}

/* CTA 条 */
.cta-band{
  position:relative;overflow:hidden;border-radius:16px;
  background:linear-gradient(120deg,#0E4C86 0%,#1462A8 62%,#127E86 100%);
  color:#fff;padding:46px 44px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  box-shadow:var(--shadow-2);
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-70px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.16),rgba(255,255,255,0) 70%);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,28px);margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.86);font-size:15px;margin:0;max-width:44em;}
.cta-band .btn-white{background:#fff;color:var(--c-primary-dark);box-shadow:0 10px 24px rgba(6,32,58,.22);}
.cta-band .btn-white:hover{background:#F2F7FC;color:var(--c-primary-dark);transform:translateY(-1px);}
.cta-band .btn-ghost{background:rgba(255,255,255,.10);color:#fff;border:1px solid rgba(255,255,255,.5);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.2);color:#fff;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2;}
.cta-copy{position:relative;z-index:2;}

/* ============ 页脚 ============ */
.site-footer{background:#0F2740;color:#B9CBDC;padding:70px 0 0;margin-top:0;}
.footer-grid{display:flex;flex-wrap:wrap;gap:36px;}
.footer-col{flex:1 1 220px;min-width:200px;}
.footer-col--qr{flex:0 1 210px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:19px;font-weight:700;margin-bottom:16px;}
.footer-brand:hover{color:#fff;}
.footer-brand .brand-mark{background:rgba(20,98,168,.28);color:#9FC8EA;}
.footer-desc{font-size:14px;line-height:1.85;color:#9DB2C6;margin-bottom:16px;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;}
.footer-tags span{
  font-size:12.5px;color:#9FC8EA;background:rgba(20,98,168,.20);
  border:1px solid rgba(159,200,234,.22);border-radius:var(--r-pill);padding:3px 11px;
}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.4px;}
.footer-col ul li{margin-bottom:10px;font-size:14px;}
.footer-col ul li a{color:#9DB2C6;}
.footer-col ul li a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-contact li{color:#9DB2C6;line-height:1.7;}
.footer-contact strong{color:#D6E4F0;font-weight:600;}
.qr-box{
  width:104px;height:104px;border-radius:12px;background:rgba(255,255,255,.06);
  border:1px dashed rgba(159,200,234,.36);color:#9FC8EA;font-size:13px;
  display:flex;align-items:center;justify-content:center;margin-bottom:12px;
}
.qr-note{font-size:13px;color:#8AA0B6;line-height:1.7;margin:0;}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:#8AA0B6;
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero-copy{padding-right:12px;}
}
@media (max-width:991px){
  :root{--gutter:20px;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-right .btn-sm{display:none;}
  .hero-copy{padding-right:0;margin-bottom:34px;}
  .hero-visual{padding-left:0;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .wall-grid{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:34px 26px;}
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px;}
  .page-hero{padding:calc(var(--nav-h) + 34px) 0 48px;}
  .hero-copy h1{font-size:clamp(24px,7vw,30px);}
  .hero-copy .lead{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .hero-badge{left:14px;bottom:14px;padding:10px 14px;}
  .sec-head{margin-bottom:28px;}
  .explain-card,.num-card,.dock-right{padding:22px;}
  .spec-table thead{display:none;}
  .spec-wrap{background:transparent;border:none;box-shadow:none;overflow:visible;}
  .spec-table,.spec-table tbody,.spec-table tr,.spec-table td{display:block;width:100%;}
  .spec-table tbody tr{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    margin-bottom:14px;padding:8px 16px;box-shadow:var(--shadow-1);
  }
  .spec-table tbody tr:nth-child(even){background:#fff;}
  .spec-table tbody td{
    display:flex;justify-content:space-between;gap:16px;align-items:flex-start;
    padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px;
  }
  .spec-table tbody td:last-child{border-bottom:none;}
  .spec-table tbody td::before{
    content:attr(data-label);flex:0 0 76px;color:var(--muted);
    font-size:13px;font-weight:600;
  }
  .spec-table tbody td > span{text-align:right;flex:1 1 auto;}
  .dock-left{margin-bottom:8px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .brand{font-size:17px;}
  .hero-note{gap:8px 16px;}
  .num-card{flex-direction:column;gap:14px;}
  .cta-band{border-radius:12px;}
}

/* roulang page: category3 */
:root{
  --primary:#1462A8;
  --primary-dark:#0E4C86;
  --primary-100:#EAF2FA;
  --primary-50:#F2F7FC;
  --teal:#159C8C;
  --amber:#D98A2B;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --panel:#EEF3F8;
  --title:#0F2740;
  --text:#3C5468;
  --muted:#7A8CA0;
  --line:#E1E9F0;
  --r-card:12px;
  --r-btn:8px;
  --r-pill:999px;
  --sh-1:0 2px 6px rgba(16,50,80,.06),0 12px 28px rgba(16,50,80,.08);
  --sh-2:0 4px 10px rgba(16,50,80,.09),0 18px 40px rgba(16,50,80,.12);
  --nav-h:64px;
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
  --font-num:"Inter",-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-card);}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,border-color .2s ease;}
a:hover{color:var(--primary-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--title);font-weight:700;line-height:1.35;letter-spacing:.2px;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.row{max-width:1200px;}
.row.g24{margin-left:-12px;margin-right:-12px;}
.row.g24 > .column,.row.g24 > .columns{padding-left:12px;padding-right:12px;}
.row.g24 .row{margin-left:-12px;margin-right:-12px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.3px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(20,98,168,.22);}
.btn-primary:hover,.btn-primary:focus{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(14,76,134,.28);}
.btn-primary:active{transform:translateY(0);background:var(--primary-dark);}
.btn-outline{background:#fff;color:var(--primary);border-color:#BBD5EC;}
.btn-outline:hover,.btn-outline:focus{background:var(--primary-100);border-color:var(--primary);color:var(--primary-dark);transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--primary);}
.btn-light:hover{background:var(--primary-100);color:var(--primary-dark);transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;transform:translateY(-1px);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);
}
.link-arrow i{font-size:12px;transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(3px);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(16,50,80,.04);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(16,50,80,.10);}
.header-inner{
  height:var(--nav-h);display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.header-left{display:flex;align-items:center;gap:36px;min-width:0;}
.brand{
  display:inline-flex;align-items:center;gap:9px;
  font-size:19px;font-weight:700;color:var(--title);letter-spacing:.4px;white-space:nowrap;
}
.brand:hover{color:var(--primary);}
.brand-mark{
  width:32px;height:32px;border-radius:9px;background:var(--primary-100);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 32px;
}
.brand-mark svg{width:19px;height:19px;}

.main-nav{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;font-weight:500;color:#33506B;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--primary);border-radius:2px;transition:width .22s ease;
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--primary);font-weight:600;}
.nav-link.is-active::after{width:100%;height:3px;}
.header-right{display:flex;align-items:center;gap:14px;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:#fff;
  color:#5A7794;display:inline-flex;align-items:center;justify-content:center;
  transition:all .2s ease;
}
.icon-btn:hover{border-color:#BBD5EC;color:var(--primary);background:var(--primary-50);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--title);align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:#BBD5EC;color:var(--primary);}

.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:12px 24px 22px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a.drawer-link{
  display:block;padding:13px 2px;font-size:16px;color:#2C4761;font-weight:500;
  border-bottom:1px solid var(--line);
}
.mobile-drawer a.drawer-link.is-active{color:var(--primary);font-weight:600;}
.mobile-drawer .btn{width:100%;margin-top:18px;}

/* ============ Hero ============ */
.hero{
  position:relative;background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 78%);
  padding:64px 0 88px;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(20,98,168,.16) 1px,transparent 1px);
  background-size:26px 26px;opacity:.28;pointer-events:none;
}
.hero > .container{position:relative;z-index:1;}
.hero-grid{display:grid;grid-template-columns:52% 48%;gap:48px;align-items:center;}
.hero-copy{max-width:600px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:var(--r-pill);
  background:var(--primary-100);color:var(--primary-dark);
  font-size:13px;font-weight:600;letter-spacing:.4px;margin-bottom:22px;
}
.eyebrow i{font-size:12px;color:var(--teal);}
.hero h1{
  font-size:clamp(30px,4vw,48px);line-height:1.28;font-weight:700;letter-spacing:.2px;
  margin-bottom:20px;
}
.hero h1 em{font-style:normal;color:var(--primary);}
.hero-lead{font-size:17px;line-height:1.85;color:#3F5A72;max-width:560px;}
.hero-lead-sub{
  font-size:14px;line-height:1.9;color:var(--muted);margin-top:14px;
  padding-left:16px;border-left:3px solid var(--primary-100);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:32px 0 26px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px 24px;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:#4A6478;}
.hero-badge i{color:var(--teal);font-size:13px;}

.hero-visual{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
.hero-visual img{width:100%;aspect-ratio:5/4;object-fit:cover;border-radius:0;}
.hero-visual::after{
  content:"";position:absolute;inset:0;background:rgba(20,98,168,.10);pointer-events:none;
}
.hero-float{
  position:absolute;left:20px;bottom:20px;right:20px;
  background:rgba(255,255,255,.94);border-radius:10px;padding:14px 18px;
  display:flex;align-items:center;gap:14px;box-shadow:var(--sh-1);
}
.hero-float i{color:var(--primary);font-size:18px;}
.hero-float span{font-size:13.5px;color:#33506B;line-height:1.6;}

/* ============ 通用板块 ============ */
.section{padding:92px 0;}
.section--tight{padding:72px 0;}
.section--panel{background:var(--panel);}
.section--white{background:#fff;}
.section-head{max-width:760px;margin-bottom:52px;}
.section-head h2{font-size:clamp(24px,2.4vw,31px);margin-bottom:16px;}
.section-head p{font-size:16px;color:#4A6478;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.section-tag{
  display:inline-block;font-size:13px;font-weight:600;color:var(--teal);
  letter-spacing:1.2px;margin-bottom:12px;
}

/* ============ 能力指标 ============ */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.metric{
  background:#fff;border-radius:var(--r-card);padding:26px 24px;
  box-shadow:var(--sh-1);border:1px solid #EDF2F7;
  transition:transform .22s ease,box-shadow .22s ease;
}
.metric:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.metric-num{
  font-family:var(--font-num);font-size:40px;line-height:1;font-weight:700;
  color:var(--primary);font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.metric-num small{font-size:16px;font-weight:600;color:var(--teal);margin-left:4px;letter-spacing:0;}
.metric-name{font-size:15.5px;font-weight:600;color:var(--title);margin:14px 0 6px;}
.metric-note{font-size:13.5px;color:var(--muted);line-height:1.7;}
.metric-source{font-size:12px;color:#9AAABA;margin-top:10px;padding-top:10px;border-top:1px dashed var(--line);}

/* ============ 定制类型卡 ============ */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.cap-card{
  background:#fff;border:1px solid #EDF2F7;border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.cap-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D3E3F3;}
.cap-icon{
  width:46px;height:46px;border-radius:12px;background:var(--primary-50);
  display:flex;align-items:center;justify-content:center;color:var(--primary);margin-bottom:18px;
}
.cap-icon svg{width:23px;height:23px;stroke-width:1.5;}
.cap-card h3{font-size:19px;margin-bottom:12px;}
.cap-card p{font-size:14.5px;color:#4A6478;line-height:1.8;flex:1;}
.cap-card .link-arrow{margin-top:18px;}

/* ============ 时间线 ============ */
.timeline{position:relative;max-width:860px;margin:0 auto;padding-left:70px;}
.timeline::before{
  content:"";position:absolute;left:23px;top:14px;bottom:14px;width:2px;
  background:linear-gradient(180deg,var(--primary) 0%,rgba(21,156,140,.65) 100%);
  border-radius:2px;
}
.tl-item{position:relative;padding-bottom:34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-node{
  position:absolute;left:-70px;top:2px;
  width:48px;height:48px;border-radius:50%;
  background:#fff;border:2px solid var(--primary);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:15px;font-weight:700;
  box-shadow:0 0 0 6px #fff,0 3px 10px rgba(20,98,168,.14);
  transition:background-color .22s ease,color .22s ease;
}
.tl-item:hover .tl-node{background:var(--primary);color:#fff;}
.tl-body{
  background:#fff;border:1px solid #EDF2F7;border-radius:var(--r-card);
  padding:22px 26px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.tl-item:hover .tl-body{transform:translateX(3px);box-shadow:var(--sh-2);}
.tl-body h3{font-size:19px;margin-bottom:10px;}
.tl-body p{font-size:14.5px;color:#4A6478;line-height:1.8;}
.tl-meta{
  display:inline-flex;align-items:center;gap:7px;margin-top:14px;
  font-size:12.5px;color:var(--primary-dark);background:var(--primary-100);
  padding:5px 12px;border-radius:var(--r-pill);font-weight:600;
}

/* ============ 交付说明双栏 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split-visual{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
.split-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0;}
.split-visual::after{content:"";position:absolute;inset:0;background:rgba(20,98,168,.08);}
.split h2{font-size:clamp(23px,2.3vw,30px);margin-bottom:18px;}
.split p.intro{font-size:16px;color:#4A6478;margin-bottom:26px;}
.check-list li{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line);
}
.check-list li:first-child{padding-top:0;}
.check-list li:last-child{border-bottom:none;padding-bottom:0;}
.check-list .ck{
  flex:0 0 24px;width:24px;height:24px;border-radius:50%;
  background:var(--primary-100);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:11px;margin-top:3px;
}
.check-list h4{font-size:16px;margin-bottom:4px;}
.check-list p{font-size:14px;color:var(--muted);line-height:1.75;}

/* ============ FAQ ============ */
.faq-wrap{max-width:800px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:14px;overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item[open]{border-color:#C7DDF1;box-shadow:var(--sh-1);}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:20px 56px 20px 24px;
  font-size:17px;font-weight:600;color:var(--title);line-height:1.6;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--primary);border-radius:0 3px 3px 0;
  opacity:0;transition:opacity .22s ease;
}
.faq-item[open] summary::before{opacity:1;}
.faq-arrow{
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border-radius:50%;background:var(--primary-50);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:11px;
  transition:transform .25s ease,background-color .25s ease;
}
.faq-item[open] .faq-arrow{transform:translateY(-50%) rotate(90deg);background:var(--primary);color:#fff;}
.faq-answer{padding:0 24px 22px 24px;font-size:15.5px;line-height:1.85;color:#456079;}

/* ============ CTA 横条 ============ */
.cta-band{
  background:var(--primary);border-radius:16px;
  padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:36px;
  color:#fff;box-shadow:0 18px 40px rgba(20,98,168,.22);
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.20) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:640px;}
.cta-copy h2{color:#fff;font-size:clamp(21px,2.2vw,27px);margin-bottom:12px;}
.cta-copy p{color:rgba(255,255,255,.88);font-size:15px;line-height:1.8;}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap;}
.cta-note{position:relative;z-index:1;font-size:13px;color:rgba(255,255,255,.78);margin-top:14px;}

/* ============ 页脚 ============ */
.site-footer{background:#0F2740;color:#B9C9D8;padding:64px 0 0;margin-top:92px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1fr;gap:44px;padding-bottom:48px;}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:#fff;
  margin-bottom:18px;
}
.footer-brand:hover{color:#8FC0E8;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);color:#8FC0E8;}
.footer-desc{font-size:14px;line-height:1.85;color:#9DB2C4;}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.footer-tags span{
  font-size:12.5px;padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.08);color:#B9C9D8;
}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:18px;font-weight:600;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{font-size:14px;color:#9DB2C4;}
.footer-col ul li a:hover{color:#8FC0E8;text-decoration:underline;}
.footer-contact li{font-size:14px;line-height:1.8;color:#9DB2C4;margin-bottom:11px;}
.footer-contact strong{color:#CFDDE9;font-weight:600;}
.qr-box{
  width:104px;height:104px;border-radius:12px;background:rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:center;
  color:#8FC0E8;font-size:13px;border:1px solid rgba(255,255,255,.12);margin-bottom:14px;
}
.qr-note{font-size:13px;color:#8FA4B7;line-height:1.75;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0 30px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:#8296A8;
}

/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  .hero-grid{gap:36px;}
  .cta-band{padding:38px 34px;}
}
@media screen and (max-width:991px){
  .main-nav{display:none;}
  .nav-toggle{display:flex;}
  .header-right .icon-btn{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-copy{max-width:none;}
  .hero-visual img{aspect-ratio:16/10;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .cap-grid{grid-template-columns:repeat(2,1fr);}
  .split{grid-template-columns:1fr;gap:34px;}
  .section{padding:68px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .cta-band{flex-direction:column;align-items:flex-start;gap:24px;}
}
@media screen and (max-width:575px){
  .container{padding:0 16px;}
  .row.g24{margin-left:-8px;margin-right:-8px;}
  .row.g24 > .column,.row.g24 > .columns{padding-left:8px;padding-right:8px;}
  .header-inner{height:56px;}
  .brand{font-size:17px;}
  .header-right .btn-sm{display:none;}
  .hero{padding:40px 0 56px;}
  .hero h1{font-size:29px;}
  .hero-lead{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .section{padding:52px 0;}
  .section-head{margin-bottom:34px;}
  .metrics{grid-template-columns:repeat(2,1fr);gap:14px;}
  .metric{padding:20px 16px;}
  .metric-num{font-size:32px;}
  .cap-grid{grid-template-columns:1fr;gap:16px;}
  .timeline{padding-left:56px;}
  .timeline::before{left:17px;}
  .tl-node{left:-56px;width:36px;height:36px;font-size:13px;box-shadow:0 0 0 5px #fff,0 3px 10px rgba(20,98,168,.14);}
  .tl-body{padding:18px 20px;}
  .cta-band{padding:30px 22px;border-radius:14px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .faq-item summary{font-size:15.5px;padding:17px 50px 17px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .site-footer{padding-top:48px;margin-top:56px;}
}