:root{--primary:#0EA5E9;--accent:#F97316;--muted:#6B7280;--border:#E5E7EB;--card:#FFFFFF;--bg:#FAFBFF;--radius:14px;--shadow:0 10px 28px rgba(17,24,39,0.08);--container:1200px}
*{box-sizing:border-box}
html,body{margin:0;padding:0;color:#111827;background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,"PingFang SC","Hiragino Sans GB","Microsoft Yahei",sans-serif}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}

/* 顶部双层导航 */
.topbar{height:38px;background:#fff;border-bottom:1px solid var(--border)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;height:38px}
.topbar a,.topbar span{color:#6B7280;font-size:13px;text-decoration:none}
.mainnav{position:sticky;top:0;left:0;right:0;height:76px;background:#ffffffcc;backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--border);z-index:999}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:76px}
.logo img{height:34px}
.menu{list-style:none;margin:0;padding:0;display:flex;gap:18px;align-items:center}
.menu a{color:#1F2937;text-decoration:none;font-weight:500}
.menu .btn{padding:10px 14px;border-radius:10px;border:1px solid var(--border)}
.btn-primary{background:var(--primary);color:#fff;border-color:transparent}
.has-qr{position:relative}
.qr-pop{position:absolute;top:110%;left:0;background:#fff;border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);padding:12px;display:none}
.has-qr:hover .qr-pop{display:block}
.ewm img{width:120px;height:120px;object-fit:cover;border-radius:8px}

/* Hero 分栏 */
.hero{padding:40px 0 90px;background:linear-gradient(180deg,#ffffff 0%,#F7F8FC 100%)}
.hero-inner{display:grid;grid-template-columns:1.35fr 1fr;gap:40px;align-items:center}
.hero h1{font-size:38px;line-height:1.15;margin:0 0 14px}
.hero p{color:var(--muted);font-size:16px;margin:0 0 18px}
.cta{display:flex;gap:12px;margin-top:8px}
.btn-secondary{background:#fff;border:1px solid var(--border);color:#111827}
.badges{list-style:none;display:flex;gap:10px;margin:18px 0 0;padding:0}
.badges li{background:#fff;border:1px solid var(--border);border-radius:999px;padding:8px 12px;font-size:13px;color:#374151}
.hero-art{height:320px;border:1px dashed var(--border);border-radius:16px;background:conic-gradient(from 180deg at 50% 50%,#e0f2fe,#fff,#fee2e2,#fff);box-shadow:var(--shadow)}

/* 杂志式服务区 */
.section{padding:60px 0}
.section h2{font-size:26px;margin:0 0 20px}
.services-magazine{display:grid;grid-template-columns:1.4fr 1fr;gap:24px}
.feature-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;display:flex;flex-direction:column}
.feature-card .thumb{height:220px;border-radius:12px;overflow:hidden;margin-bottom:14px;display:block}
.feature-card .thumb img{width:100%;height:100%;object-fit:cover}
.feature-card h3{margin:6px 0 8px;font-size:20px}
.feature-card p{color:var(--muted);font-size:14px;margin:0 0 12px}
.feature-card .more{color:var(--primary);text-decoration:none;font-weight:600}
.list-grid{display:grid;grid-template-columns:1fr;gap:16px}
.list-item{background:var(--card);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);padding:14px;display:grid;grid-template-columns:96px 1fr;gap:12px;align-items:center}
.list-item .thumb{width:96px;height:72px;border-radius:8px;overflow:hidden;display:block}
.list-item .thumb img{width:100%;height:100%;object-fit:cover}
.list-item h4{margin:0 0 6px;font-size:16px}
.list-item p{margin:0;color:var(--muted);font-size:13px}

/* 非等高杂志网格（替代旧三列） */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px;display:flex;flex-direction:column}
.card .thumb{height:160px;border-radius:10px;overflow:hidden;margin-bottom:10px;display:block}
.card .thumb img{width:100%;height:100%;object-fit:cover}
.card h3{margin:6px 0 8px;font-size:18px}
.card p{color:var(--muted);font-size:13px;margin:0 0 10px}
.card .more{color:var(--primary);text-decoration:none;font-weight:600}

/* 垂直时间轴流程 */
.steps{display:grid;grid-template-columns:1fr;gap:16px;position:relative}
.steps:before{content:"";position:absolute;left:14px;top:0;bottom:0;width:2px;background:#d1d5db}
.step{position:relative;background:#fff;border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);padding:14px 14px 14px 44px}
.step:before{content:"";position:absolute;left:6px;top:18px;width:16px;height:16px;border-radius:999px;background:var(--primary);box-shadow:0 0 0 4px #e0f2fe}
.step h4{margin:0 0 6px;font-size:16px}
.step p{margin:0;color:var(--muted);font-size:13px}

/* 品牌 Logo 墙 */
.brands{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.brands a{background:#fff;border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center;height:72px;filter:grayscale(1);transition:.2s}
.brands a:hover{filter:grayscale(0);transform:translateY(-2px)}
.brands img{max-height:36px;max-width:80%;object-fit:contain}

/* 中部 CTA */
.mid-cta{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:24px 0;margin:20px 0}
.mid-cta .container{display:flex;align-items:center;justify-content:space-between}
.mid-cta h3{margin:0;font-size:20px}
.mid-cta a{background:var(--accent);color:#fff;text-decoration:none;padding:10px 14px;border-radius:10px}

/* 页脚站点地图式（映射旧类名） */
footer{background:#fff;border-top:1px solid var(--border)}
.foottop{padding:24px 0}
.lj{margin:0 0 12px}
.lj>span{color:#6B7280;margin-right:8px}
.lj>a{display:inline-block;margin:6px 12px 6px 0;color:#2563eb;font-size:14px;text-decoration:none}
.box{display:grid;grid-template-columns:1.2fr 1fr .8fr;gap:20px;align-items:start}
.box-left img{height:46px}
.box-zx{background:#fff;border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);padding:12px}
.box-zx_top{display:flex;gap:10px;align-items:center;margin-bottom:10px}
.rig p{margin:0;color:#374151}
.box-right h3{margin:0 0 10px;font-size:16px}
.box-right ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:10px}
.box-right ul li{background:#fff;border:1px solid var(--border);border-radius:12px;padding:10px;display:flex;flex-direction:column;align-items:center;box-shadow:var(--shadow)}
.box-right img{width:120px;height:120px;object-fit:cover;border-radius:8px}
.foot-cta{background:#F7F8FC;border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:24px 0}
.foot-cta .container{display:flex;align-items:center;justify-content:space-between}
.foot-cta a{background:var(--primary);color:#fff;text-decoration:none;padding:10px 14px;border-radius:10px}
.footbottom{border-top:1px solid var(--border);padding:16px 0;text-align:center;color:#6B7280}

/* 响应式 */
@media (max-width:1199px){
  .hero-inner{grid-template-columns:1fr}
  .services-magazine{grid-template-columns:1fr}
  .brands{grid-template-columns:repeat(4,1fr)}
  .box{grid-template-columns:1fr}
}
@media (max-width:991px){
  .mainnav{height:64px}
  .nav-inner{height:64px}
  .menu{gap:12px}
  .hero h1{font-size:30px}
  .grid{grid-template-columns:repeat(2,1fr)}
  .brands{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:640px){
  .grid{grid-template-columns:1fr}
  .brands{grid-template-columns:repeat(2,1fr)}
  .badges{flex-wrap:wrap}
}