/* 中科博星商城 · 详情页共用样式（解决方案 / 关于我们）
   与首页共用同一套色板，保证从首页点进来视觉连续。 */
:root{
  --primary:#0b3d91;--primary-dark:#082a66;--accent:#ff8c00;
  --bg:#f5f7fa;--card:#ffffff;--text:#1f2937;--muted:#6b7280;
  --border:#e5e7eb;--radius:10px;
}
*{margin:0;padding:0;box-sizing:border-box;}
body{font-family:"Microsoft YaHei","PingFang SC",sans-serif;background:var(--bg);color:var(--text);line-height:1.7;}
a{text-decoration:none;color:inherit;}
img{display:block;max-width:100%;}
.wrap{max-width:1100px;margin:0 auto;padding:0 16px;}

/* 顶部信息条 / 导航 */
.topbar{background:#0d1b2e;color:#8a9bb0;font-size:12px;}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:34px;}
header.site{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50;}
header.site .nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px;}
.logo{display:flex;align-items:center;gap:10px;}
.logo .mark{width:40px;height:40px;border-radius:9px;background:linear-gradient(135deg,var(--primary),#1560c8);color:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;letter-spacing:1px;}
/* 详情页的站点名用 div 而不是 h1：每页只能有一个 h1（正文标题），否则削弱主题相关性 */
.logo .logo-t{font-size:19px;color:var(--primary);line-height:1.15;font-weight:700;}
.logo .logo-t small{display:block;font-size:9.5px;color:var(--muted);letter-spacing:.5px;font-weight:400;}
.mainnav{display:flex;gap:20px;font-size:14px;color:#334155;}
.mainnav a:hover{color:var(--primary);}

/* 面包屑 */
.crumb{background:#eef2f8;border-bottom:1px solid var(--border);font-size:12.5px;color:var(--muted);}
.crumb .wrap{padding:9px 16px;display:flex;gap:8px;align-items:center;flex-wrap:wrap;}
.crumb a:hover{color:var(--primary);}
.crumb i{font-style:normal;color:#c3ccd9;}
.crumb span{color:var(--text);}

/* 首屏 */
.hero{background:linear-gradient(120deg,#082a66,#0b3d91 60%,#1560c8);color:#fff;padding:44px 0 46px;}
.hero-inner{display:flex;gap:24px;align-items:flex-start;}
.hero-ic{font-size:44px;line-height:1;background:rgba(255,255,255,.12);border-radius:14px;padding:14px 16px;flex-shrink:0;}
.hero-tags{display:flex;gap:8px;margin-bottom:10px;flex-wrap:wrap;}
.tag{font-size:11.5px;border:1px solid var(--accent);color:#ffd9a8;border-radius:4px;padding:1px 8px;}
.tag.ghost{border-color:rgba(255,255,255,.45);color:#cfe0ff;}
.hero h1{font-size:30px;line-height:1.3;margin-bottom:6px;}
.hero-sub{font-size:14.5px;color:#cfe0ff;margin-bottom:12px;}
.hero-lead{font-size:14px;color:#e3ecff;max-width:820px;}
.hero-btns{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap;}

/* 按钮 */
.btn{display:inline-block;padding:11px 22px;border-radius:8px;font-size:14px;font-weight:600;transition:.2s;}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:#e87f00;}
.btn-ghost{border:1px solid rgba(255,255,255,.6);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.12);}

/* 正文区块 */
.sec{padding:44px 0;}
.sec.alt{background:#fff;}
.sec-title{font-size:22px;color:var(--primary);margin-bottom:18px;padding-bottom:12px;position:relative;display:inline-block;}
.sec-title::after{content:"";position:absolute;left:0;bottom:0;width:42px;height:3px;background:var(--accent);border-radius:2px;}
.sec p{font-size:14.5px;color:#374151;margin-bottom:12px;max-width:900px;}

/* 卡片栅格 */
.grid3{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;margin-top:6px;}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px 18px;transition:.2s;}
.sec.alt .card{background:#f8fafc;}
.card:hover{box-shadow:0 10px 26px rgba(11,61,145,.1);transform:translateY(-2px);border-color:#c7d6f0;}
.card .ic{font-size:22px;margin-bottom:8px;line-height:1;}
.card h3{font-size:15.5px;color:var(--primary);margin-bottom:7px;}
.card p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.8;}
.card.step .ic{color:var(--accent);font-weight:700;font-size:18px;}

/* 适用场景 */
.scenes{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:10px;}
.scenes li{background:#fff;border:1px solid var(--border);border-left:3px solid var(--primary);border-radius:8px;padding:12px 16px;font-size:14px;color:#374151;}
.sec.alt .scenes li{background:#fff;}

/* FAQ */
.faqs{display:flex;flex-direction:column;gap:10px;}
.faq{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:14px 18px;}
.faq summary{cursor:pointer;font-size:14.5px;font-weight:600;color:var(--primary);list-style:none;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::before{content:"Q ";color:var(--accent);font-weight:700;}
.faq[open] summary{margin-bottom:8px;}
.faq-a{font-size:13.8px;color:var(--muted);line-height:1.85;border-top:1px dashed var(--border);padding-top:10px;}

/* 相关方案 */
.rels{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px;}
.rel{display:flex;flex-direction:column;gap:4px;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:16px 18px;transition:.2s;}
.rel:hover{border-color:#c7d6f0;box-shadow:0 8px 20px rgba(11,61,145,.1);transform:translateY(-2px);}
.rel-ic{font-size:20px;}
.rel b{font-size:15px;color:var(--primary);}
.rel-d{font-size:12.5px;color:var(--muted);}

/* CTA */
.cta{background:linear-gradient(120deg,#0b3d91,#1560c8);color:#fff;padding:46px 0;text-align:center;}
.cta h2{font-size:24px;margin-bottom:10px;}
.cta p{font-size:14px;color:#dbe7ff;margin-bottom:22px;}
.cta-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;}

/* 页脚 */
footer.site{background:#0d1b2e;color:#8a9bb0;font-size:13px;padding:40px 0 0;margin-top:0;}
footer.site .cols{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:32px;padding-bottom:26px;}
footer.site h4{color:#fff;font-size:14.5px;margin-bottom:12px;}
footer.site p{font-size:12.5px;line-height:1.85;color:#8a9bb0;}
footer.site li{list-style:none;font-size:12.5px;line-height:2;}
footer.site li a:hover{color:var(--accent);}
footer.site ul.plain{padding:0;margin:0;}
footer.site .copyright{border-top:1px solid rgba(255,255,255,.1);padding:14px 16px;text-align:center;font-size:12px;color:#6b7f96;}
footer.site .copyright .icp{color:#8a9bb0;text-decoration:none;}
footer.site .copyright .icp:hover{color:#fff;text-decoration:underline;}

@media (max-width:760px){
  .topbar .wrap{height:auto;flex-direction:column;gap:2px;padding:6px 16px;text-align:center;font-size:11px;}
  header.site .nav{flex-wrap:wrap;height:auto;padding:10px 0;gap:10px;}
  .mainnav{flex-wrap:wrap;gap:12px;font-size:13px;}
  .hero-inner{flex-direction:column;gap:14px;}
  .hero h1{font-size:23px;}
  .hero-ic{font-size:32px;padding:10px 12px;}
  footer.site .cols{grid-template-columns:1fr;gap:22px;}
  .scenes{grid-template-columns:1fr;}
}

/* ===== 推广落地页（由 make_promo_pages.py 追加，勿手改）===== */
.pg{display:grid;grid-template-columns:repeat(auto-fill,minmax(248px,1fr));gap:16px;margin-top:22px;}
.pc{background:#fff;border:1px solid var(--border);border-radius:12px;overflow:hidden;display:flex;flex-direction:column;transition:.2s;}
.pc:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(11,61,145,.12);border-color:#c8d8ef;}
.pc-img{aspect-ratio:1/1;background:#f6f9fd;display:flex;align-items:center;justify-content:center;}
.pc-img img{width:100%;height:100%;object-fit:contain;}
.pc-b{padding:14px 15px 16px;display:flex;flex-direction:column;gap:7px;flex:1;}
.pc-cat{font-size:12px;color:#8a97a8;}
.pc-b h3{font-size:15px;line-height:1.45;color:#12263f;font-weight:600;}
.pc-sum{font-size:13px;color:#5b6d82;line-height:1.6;flex:1;}
.pc-price{display:flex;align-items:baseline;gap:8px;margin-top:2px;}
.pc-price b{color:#d3232a;font-size:19px;font-weight:700;}
.pc-price span{font-size:12.5px;color:#9aa6b6;text-decoration:line-through;}
.pc-act{display:flex;gap:8px;margin-top:4px;}
.pc-act a{flex:1;text-align:center;font-size:13px;padding:8px 0;border-radius:8px;}
.pc-act .buy{background:var(--primary);color:#fff;}
.pc-act .ask{background:#eef4fd;color:var(--primary);}
.tbl{width:100%;border-collapse:collapse;margin-top:22px;font-size:14px;background:#fff;border-radius:10px;overflow:hidden;}
.tbl th,.tbl td{padding:12px 14px;border-bottom:1px solid #eef2f8;text-align:left;vertical-align:top;line-height:1.65;}
.tbl th{background:#f2f6fc;color:#12263f;font-weight:600;white-space:nowrap;}
.tbl tr:last-child td{border-bottom:none;}
.tbl td:first-child{color:var(--primary);font-weight:600;white-space:nowrap;}
.kw-cloud{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}
.kw{font-size:13px;padding:6px 12px;border-radius:999px;background:#eef4fd;color:var(--primary);border:1px solid #d8e4f6;}
.promo-note{font-size:13.5px;color:#6b7280;margin-top:16px;line-height:1.8;}
.promo-note b{color:#12263f;}
.catgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px;margin-top:22px;}
.catg{background:#fff;border:1px solid var(--border);border-radius:12px;padding:20px 18px;transition:.2s;display:block;}
.catg:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(11,61,145,.12);border-color:#c8d8ef;}
.catg .ic{font-size:26px;line-height:1;}
.catg h3{font-size:16.5px;color:#12263f;margin:10px 0 6px;}
.catg p{font-size:13px;color:#5b6d82;margin:0;line-height:1.7;}
.catg .go{display:inline-block;margin-top:10px;font-size:13px;color:var(--primary);font-weight:600;}
@media(max-width:640px){
  .pg{grid-template-columns:repeat(auto-fill,minmax(158px,1fr));gap:12px;}
  .pc-b h3{font-size:13.5px;}.pc-price b{font-size:17px;}
  .tbl{font-size:13px;}.tbl th,.tbl td{padding:10px 11px;}
  .hero h1{font-size:23px;}
}
/* ===== 推广落地页样式结束 ===== */

/* ===== 知识中心 / 文章页（由 make_articles.py 追加） ===== */
.k-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:16px;}
.k-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 20px;transition:.2s;}
.k-card:hover{border-color:#c7d6f0;box-shadow:0 10px 26px rgba(11,61,145,.1);transform:translateY(-2px);}
.k-card .k-ic{font-size:24px;line-height:1;margin-bottom:10px;}
.k-card .k-cat{font-size:11.5px;color:var(--accent);border:1px solid var(--accent);border-radius:4px;padding:1px 8px;align-self:flex-start;margin-bottom:10px;}
.k-card h3{font-size:16.5px;color:var(--primary);line-height:1.5;margin-bottom:9px;}
.k-card p{font-size:13.5px;color:var(--muted);line-height:1.8;margin:0 0 14px;}
.k-card .k-more{margin-top:auto;font-size:13px;color:var(--primary);font-weight:600;}
.k-card:hover .k-more{color:var(--accent);}
.art-meta{display:flex;gap:14px;flex-wrap:wrap;font-size:12.5px;color:#cfe0ff;margin-top:14px;}
.art-body{max-width:860px;}
.art-body h2{font-size:20px;color:var(--primary);margin:30px 0 12px;padding-left:12px;border-left:4px solid var(--accent);line-height:1.4;}
.art-body h2:first-child{margin-top:0;}
.art-body h3{font-size:16.5px;color:var(--primary);margin:22px 0 10px;}
.art-body p{font-size:14.8px;color:#374151;line-height:2;margin-bottom:14px;max-width:860px;}
.art-body ul.blist{margin:0 0 16px;padding-left:0;list-style:none;}
.art-body ul.blist li{position:relative;padding-left:22px;font-size:14.5px;color:#374151;line-height:1.95;margin-bottom:8px;}
.art-body ul.blist li::before{content:"";position:absolute;left:6px;top:13px;width:6px;height:6px;border-radius:50%;background:var(--accent);}
.art-body .note{background:#f0f6ff;border-left:4px solid var(--primary);border-radius:0 8px 8px 0;padding:14px 18px;font-size:14px;color:#334155;line-height:1.95;margin:0 0 16px;}
.art-body blockquote{margin:0 0 16px;padding:14px 18px;background:#fff8ee;border-left:4px solid var(--accent);border-radius:0 8px 8px 0;font-size:14px;color:#6b4a16;line-height:1.95;}
.art-body .tbl{overflow-x:auto;margin:0 0 18px;}
.art-body table{width:100%;border-collapse:collapse;font-size:13.6px;background:#fff;}
.art-body th{background:#eef3fb;color:var(--primary);font-weight:600;text-align:left;padding:10px 12px;border:1px solid var(--border);white-space:nowrap;}
.art-body td{padding:10px 12px;border:1px solid var(--border);color:#374151;line-height:1.8;vertical-align:top;}
.art-body tbody tr:nth-child(even){background:#fafcff;}
.art-tools{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px;}
.art-tools a{font-size:13px;color:var(--primary);border:1px solid var(--border);border-radius:8px;padding:8px 14px;background:#fff;font-weight:600;}
.art-tools a:hover{border-color:var(--primary);color:var(--accent);}
@media(max-width:640px){
  .art-body h2{font-size:18px;}
  .art-body p, .art-body ul.blist li{font-size:14.5px;}
}