/* ============================================================
   hbgtblg.com · 河北广拓玻璃钢有限公司 内贸综合站
   蓝色工业风 · 原创静态模板 · 2026-10-29
   ============================================================ */
:root{
  --blue-900:#0a3a7a;
  --blue-700:#0d4fa0;
  --blue-500:#1677ff;
  --blue-300:#5ba3f5;
  --blue-100:#e8f1fc;
  --blue-050:#f4f8fd;
  --ink:#1f2d3d;
  --ink-soft:#5a6b7f;
  --line:#dde6f0;
  --white:#ffffff;
  --radius:8px;
  --shadow:0 4px 14px rgba(13,79,160,.10);
  --shadow-hover:0 10px 26px rgba(13,79,160,.18);
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",Arial,sans-serif;color:var(--ink);font-size:15px;line-height:1.7;background:var(--white)}
a{color:var(--blue-700);text-decoration:none;transition:color .2s}
a:hover{color:var(--blue-500)}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--blue-900);color:#cfe1f7;font-size:13px;padding:6px 0}
.topbar .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:4px}
.topbar .hotline{color:#ffd76a;font-weight:700;font-size:14px}
.topbar a{color:#cfe1f7}

/* ---------- 头部导航 ---------- */
.header{background:var(--white);box-shadow:0 2px 10px rgba(13,79,160,.08);position:sticky;top:0;z-index:100}
.header .container{display:flex;align-items:center;gap:28px;min-height:64px}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{width:40px;height:40px;border-radius:8px;background:linear-gradient(135deg,var(--blue-500),var(--blue-700));display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:18px}
.logo-name{font-size:17px;font-weight:800;color:var(--blue-900);line-height:1.25}
.logo-sub{font-size:11.5px;color:var(--ink-soft);letter-spacing:1px}
.nav{display:flex;gap:2px;margin-left:auto;flex-wrap:wrap}
.nav a{padding:8px 12px;color:var(--ink);font-size:14.5px;border-radius:6px;white-space:nowrap}
.nav a:hover,.nav a.active{color:var(--blue-700);background:var(--blue-100)}

/* ---------- Banner ---------- */
.banner{background:linear-gradient(120deg,#082e5e 0%,#0d4fa0 55%,#1677ff 100%);color:#fff;padding:72px 0 64px;position:relative;overflow:hidden}
.banner::after{content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;background:rgba(255,255,255,.06)}
.banner h1{font-size:34px;font-weight:800;line-height:1.4;margin-bottom:14px;max-width:760px}
.banner h1 .gold{color:#ffd76a}
.banner p{font-size:16px;color:#d3e4f9;max-width:640px;margin-bottom:26px}
.banner .btns{display:flex;gap:14px;flex-wrap:wrap}
.banner-img{position:absolute;right:40px;bottom:-30px;width:520px;border-radius:12px;box-shadow:0 18px 40px rgba(0,0,0,.28);opacity:.95}
@media(max-width:1100px){.banner-img{display:none}}

/* ---------- 通用按钮 ---------- */
.btn{display:inline-block;padding:11px 26px;border-radius:6px;font-size:15px;font-weight:700;background:var(--blue-500);color:#fff;border:1px solid var(--blue-500);transition:all .2s}
.btn:hover{background:var(--blue-700);border-color:var(--blue-700);color:#fff}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.75)}
.btn--ghost:hover{background:#fff;color:var(--blue-900);border-color:#fff}
.btn--sm{padding:8px 18px;font-size:13.5px}

/* ---------- 区块 ---------- */
.section{padding:52px 0}
.section--alt{background:var(--blue-050)}
.section-head{text-align:center;margin-bottom:34px}
.section-head .eyebrow{display:inline-block;color:var(--blue-500);font-size:13px;font-weight:700;letter-spacing:2px;margin-bottom:6px}
.section-head h2{font-size:26px;color:var(--blue-900);font-weight:800}
.section-head p{color:var(--ink-soft);font-size:14px;margin-top:8px}

/* ---------- 卡片与网格 ---------- */
.grid{display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:640px){.grid--2{grid-template-columns:repeat(2,1fr)}}
@media(min-width:960px){
  .grid--3{grid-template-columns:repeat(3,1fr)}
  .grid--4{grid-template-columns:repeat(4,1fr)}
}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.card .ph{height:180px;background:var(--blue-100);display:flex;align-items:center;justify-content:center;overflow:hidden}
.card .ph img{width:100%;height:100%;object-fit:cover}
.card .body{padding:16px 18px 20px;display:flex;flex-direction:column;flex:1}
.card h3{font-size:16.5px;color:var(--blue-900);margin-bottom:8px}
.card p{color:var(--ink-soft);font-size:13.5px;flex:1}
.card .card-actions{display:flex;gap:10px;margin-top:14px}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;margin:16px 0}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{border:1px solid var(--line);padding:10px 12px;text-align:left}
th{background:var(--blue-100);color:var(--blue-900);font-weight:700;white-space:nowrap}
tr:nth-child(even) td{background:#f8fbfe}
.table-note{font-size:12.5px;color:var(--ink-soft);margin-top:8px}

/* ---------- FAQ ---------- */
.faq-item{border:1px solid var(--line);border-radius:var(--radius);margin-bottom:12px;background:var(--white)}
.faq-item summary{cursor:pointer;padding:14px 18px;font-weight:700;color:var(--blue-900);list-style:none}
.faq-item summary::before{content:"Q ";color:var(--blue-500)}
.faq-item p{padding:0 18px 16px;color:var(--ink-soft);font-size:14px}

/* ---------- 步骤条 ---------- */
.steps{display:grid;gap:16px;grid-template-columns:1fr;counter-reset:step}
@media(min-width:960px){.steps{grid-template-columns:repeat(5,1fr)}}
.step{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:20px 16px;text-align:center;position:relative}
.step::before{counter-increment:step;content:counter(step);display:inline-flex;width:34px;height:34px;border-radius:50%;background:var(--blue-700);color:#fff;font-weight:800;align-items:center;justify-content:center;margin-bottom:10px}
.step h4{font-size:15.5px;color:var(--blue-900);margin-bottom:6px}
.step p{font-size:13px;color:var(--ink-soft)}

/* ---------- 页面主体 ---------- */
.page-title{background:linear-gradient(120deg,#082e5e,#0d4fa0);color:#fff;padding:40px 0}
.page-title h1{font-size:26px;font-weight:800}
.page-title .crumb{font-size:13px;color:#c9dcf3;margin-top:6px}
.page-title .crumb a{color:#c9dcf3}
.main{padding:44px 0 56px}
.h2{font-size:21px;color:var(--blue-900);border-left:4px solid var(--blue-500);padding-left:12px;margin:34px 0 18px;font-weight:800}
.h2:first-child{margin-top:0}
.prose p{margin-bottom:14px;color:#3a4a5e}
.prose ul{margin:10px 0 14px 22px}
.prose li{margin-bottom:6px}

/* ---------- 底部 ---------- */
.footer{background:var(--blue-900);color:#c9dcf3;font-size:13.5px;margin-top:0}
.footer .grid{grid-template-columns:1fr;gap:24px;padding:38px 0 28px}
@media(min-width:960px){.footer .grid{grid-template-columns:repeat(3,1fr)}}
.footer h4{color:#fff;font-size:15px;margin-bottom:12px}
.footer a{color:#c9dcf3}
.footer a:hover{color:#fff}
.footer .tel{font-size:20px;color:#ffd76a;font-weight:800}
.footer-bottom{background:#07264f;text-align:center;padding:14px;font-size:12.5px;color:#8fb0d8}

/* ---------- 占位提示块 ---------- */
.placeholder{background:#fff8e6;border:1px dashed #e0b84a;border-radius:var(--radius);padding:14px 16px;font-size:13px;color:#8a6d1f;margin:12px 0}