:root{
  --blue:#1456c4; --blue-d:#0d3a8a; --blue-l:#e8f0fd;
  --red:#e23744; --orange:#ff7a18;
  --ink:#1c2530; --gray:#6b7785; --line:#e6eaf0;
  --bg:#f5f7fa; --ok:#1a9c5b;
  --wrap:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:#fff;line-height:1.6}
a{color:inherit;text-decoration:none}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}

/* 顶部条 */
.topbar{background:var(--blue-d);color:#cdd9f2;font-size:13px}
.topbar-in{display:flex;justify-content:space-between;padding:7px 20px;max-width:var(--wrap);margin:0 auto}
.topbar a{color:#9fc0ff}
.topbar-right a{margin-left:4px}

/* 导航 */
.nav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:20px}
.logo-mark{background:var(--blue);color:#fff;width:38px;height:38px;border-radius:8px;display:grid;place-items:center;font-size:16px}
.logo-txt small{display:block;font-size:11px;font-weight:500;color:var(--gray);letter-spacing:2px}
.nav-links{display:flex;gap:22px;align-items:center;font-size:15px}
.nav-links a{color:var(--ink);transition:.2s}
.nav-links a:hover{color:var(--blue)}
.nav-cta{background:var(--blue);color:#fff!important;padding:8px 18px;border-radius:6px}
.nav-cta:hover{background:var(--blue-d)}
.nav-toggle{display:none;background:none;border:0;font-size:26px;cursor:pointer;color:var(--ink)}

/* 首屏 */
.hero{background:linear-gradient(120deg,#0d3a8a,#1456c4 60%,#2f7be0);color:#fff;padding:48px 0 56px}
.hero-in{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.hero h1{font-size:38px;line-height:1.25;font-weight:800}
.hero h1 span{color:#ffd27a;font-size:26px}
.hero-sub{margin:16px 0;color:#d6e4fb;font-size:15px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.hero-tags span{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);padding:6px 12px;border-radius:20px;font-size:13px}

/* 计价器卡片 */
.calc-card{background:#fff;border-radius:14px;padding:0;overflow:hidden;box-shadow:0 18px 50px rgba(0,0,0,.25);color:var(--ink)}
.calc-head{background:var(--blue);color:#fff;padding:14px 20px;font-size:18px;font-weight:700;text-align:center}
.calc-form{padding:20px}
.calc-row{margin-bottom:14px}
.calc-row>label{display:block;font-size:13px;color:var(--gray);margin-bottom:6px}
.calc-row select,.calc-row input{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:8px;font-size:15px;background:#fafbfc}
.size-in{display:flex;align-items:center;gap:8px}
.size-in input{flex:1}
.calc-btn{width:100%;background:var(--orange);color:#fff;border:0;padding:13px;border-radius:8px;font-size:17px;font-weight:700;cursor:pointer;transition:.2s}
.calc-btn:hover{background:#e96a08}
.calc-result{padding:16px 20px;border-top:1px dashed var(--line)}
.cr-row{display:flex;justify-content:space-between;align-items:baseline;padding:5px 0}
.cr-row b{font-size:18px;color:var(--ink)}
.cr-row.total{border-top:1px solid var(--line);margin-top:6px;padding-top:10px}
.cr-row.total b{font-size:24px;color:var(--red)}
.cr-more{display:inline-block;margin-top:8px;color:var(--blue);font-size:13px}
.calc-note{padding:14px 20px;color:var(--gray);font-size:13px;text-align:center;background:#fafbfc}

/* 促销卡 */
.promo{background:var(--bg);padding:28px 0}
.promo-in{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.promo-card{background:#fff;border-radius:12px;padding:22px;position:relative;border:1px solid var(--line)}
.promo-tag{position:absolute;top:-12px;left:20px;background:var(--red);color:#fff;font-size:12px;padding:4px 12px;border-radius:14px;font-weight:700}
.promo-tag.hot{background:var(--orange)}
.promo-card h3{font-size:19px;margin:6px 0 10px}
.promo-card p{color:var(--gray);font-size:14px;margin-bottom:14px}
.promo-btn{display:inline-block;background:var(--blue);color:#fff;padding:9px 20px;border-radius:6px;font-size:14px;font-weight:600}
.promo-btn:hover{background:var(--blue-d)}

/* 通用区块 */
.block{padding:56px 0}
.block.alt{background:var(--bg)}
.sec-title{text-align:center;font-size:30px;font-weight:800}
.sec-title.light{color:#fff}
.sec-sub{text-align:center;color:var(--gray);margin:10px 0 36px}

/* 服务网格 */
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.svc{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px;transition:.2s}
.svc:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(20,86,196,.12);border-color:var(--blue)}
.svc-ico{width:52px;height:52px;border-radius:12px;background:var(--blue-l);color:var(--blue);display:grid;place-items:center;font-size:26px;margin-bottom:14px}
.svc h3{font-size:18px;margin-bottom:8px}
.svc p{color:var(--gray);font-size:14px}

/* 行业九宫格 */
.ind-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.ind{background:#fff;border-radius:12px;padding:20px;border-left:4px solid var(--blue)}
.ind b{display:block;font-size:17px;margin-bottom:8px}
.ind span{color:var(--gray);font-size:14px}

/* 数据墙 */
.data{background:linear-gradient(120deg,#0d3a8a,#1456c4);color:#fff}
.data-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.data-item b{font-size:46px;font-weight:800;color:#ffd27a;display:block}
.data-item b span{font-size:24px}
.data-item span{color:#d6e4fb;font-size:14px}
.data-foot{text-align:center;color:#cdd9f2;margin-top:28px;font-size:14px;max-width:760px;margin-left:auto;margin-right:auto}

/* 资质 */
.cert-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.cert{background:#fff;border:1px solid var(--line);border-radius:12px;padding:22px;text-align:center}
.cert b{display:block;color:var(--blue);font-size:20px;margin-bottom:6px}
.cert span{color:var(--gray);font-size:13px}

/* 晒单 */
.show-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.show{background:#fff;border-radius:12px;padding:20px;border:1px solid var(--line)}
.show-meta{color:var(--gray);font-size:13px;margin-bottom:8px}
.show p{font-size:15px;margin-bottom:12px}
.show span{color:var(--orange);font-weight:600}

/* 动态 */
.news-in{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.news-col h3{font-size:18px;margin-bottom:14px;display:flex;justify-content:space-between;align-items:baseline}
.news-col h3 a{font-size:13px;color:var(--blue);font-weight:400}
.news-col ul{list-style:none}
.news-col li{font-size:14px;padding:9px 0;border-bottom:1px dashed var(--line);color:var(--ink);display:flex;gap:10px}
.news-col li span{color:var(--gray);font-size:12px;white-space:nowrap;flex-shrink:0}

/* CTA */
.cta{background:linear-gradient(120deg,#1456c4,#2f7be0);color:#fff;padding:54px 0}
.cta-in{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.cta h2{font-size:28px;margin-bottom:12px}
.cta p{color:#d6e4fb;margin-bottom:16px}
.cta-info{list-style:none}
.cta-info li{padding:5px 0;color:#e8f0fd}
.cta-form{background:#fff;border-radius:12px;padding:24px}
.cta-form .field{margin-bottom:12px}
.cta-form input,.cta-form textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:8px;font-size:15px;font-family:inherit;resize:vertical}
.cta-form button{width:100%;background:var(--orange);color:#fff;border:0;padding:13px;border-radius:8px;font-size:16px;font-weight:700;cursor:pointer}
.cta-form button:hover{background:#e96a08}
.contact-hint{margin-top:10px;font-size:13px;min-height:18px}

/* 页脚 */
.footer{background:#15233a;color:#aab8cc;padding:44px 0 20px}
.footer-in{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}
.footer .logo{color:#fff;margin-bottom:12px}
.footer .logo-txt small{color:#8aa0c0}
.footer p{font-size:14px;max-width:320px}
.footer h5{color:#fff;font-size:15px;margin-bottom:12px}
.footer a{display:block;padding:5px 0;font-size:14px;color:#aab8cc}
.footer a:hover{color:#fff}
.copyright{border-top:1px solid #24344d;margin-top:30px;padding-top:18px;text-align:center;font-size:13px;color:#6b7e98}

/* 计价大入口 */
.quote-entrance{background:linear-gradient(120deg,#0b2f6b,#1456c4);color:#fff;padding:48px 0}
.qe-in{display:grid;grid-template-columns:1.3fr .7fr;gap:40px;align-items:center}
.qe-badge{display:inline-block;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.3);padding:5px 14px;border-radius:20px;font-size:13px;margin-bottom:14px}
.qe-left h2{font-size:34px;font-weight:800;margin-bottom:14px}
.qe-left p{color:#d6e4fb;font-size:15px;max-width:620px;margin-bottom:18px}
.qe-feats{list-style:none;display:flex;flex-wrap:wrap;gap:10px 22px}
.qe-feats li{font-size:14px;color:#eaf2ff}
.qe-right{text-align:center}
.qe-btn{display:inline-block;background:var(--orange);color:#fff;font-size:22px;font-weight:800;padding:20px 44px;border-radius:12px;box-shadow:0 12px 30px rgba(255,122,24,.4);transition:.2s}
.qe-btn:hover{background:#e96a08;transform:translateY(-2px)}
.qe-quick{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:20px}
.qe-quick a{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);color:#fff;padding:8px 16px;border-radius:20px;font-size:13px;transition:.2s}
.qe-quick a:hover{background:#fff;color:var(--blue)}

/* 响应式 */
@media(max-width:900px){
  .hero-in{grid-template-columns:1fr}
  .promo-in,.svc-grid,.ind-grid,.show-grid,.news-in,.cta-in,.qe-in{grid-template-columns:1fr}
  .qe-in{text-align:center}
  .qe-left p{margin-left:auto;margin-right:auto}
  .qe-feats{justify-content:center}
  .data-grid{grid-template-columns:repeat(2,1fr)}
  .cert-grid{grid-template-columns:repeat(2,1fr)}
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 20px;gap:14px;border-bottom:1px solid var(--line)}
  .nav-links.open{display:flex}
  .nav-toggle{display:block}
  .footer-in{grid-template-columns:1fr 1fr}
  .hero h1{font-size:30px}
}
@media(max-width:560px){
  .data-grid{grid-template-columns:1fr}
  .footer-in{grid-template-columns:1fr}
}