/* ============================================================
   pages.css — 多页站点新增样式（内页 / 导航系统 / 站点地图 / 文档页）
   依赖 site.css（基础变量与组件）
   ============================================================ */

/* ---------- 导航当前页高亮 ---------- */
.nav-links a.active{color:var(--blue3);font-weight:600}
.nav-links a.active::after{right:0}
.nav.scrolled .nav-links a.active{color:var(--blue)}
.nav-links .sub-menu{display:none}
.nav-dropdown{position:relative}
.nav-dropdown:hover .sub-menu{display:block;position:absolute;top:26px;left:-16px;min-width:176px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--sd);padding:8px}
.nav-dropdown .sub-menu a{display:block;padding:9px 12px;border-radius:7px;color:var(--ink2);font-size:13px;font-weight:400}
.nav-dropdown .sub-menu a:hover{background:#f2f7ff;color:var(--blue)}
.nav-dropdown .sub-menu a::after{display:none}

/* ---------- 内页页头（统一深色，保证导航白字可读） ---------- */
.page-hero{position:relative;background:linear-gradient(135deg,#071c3f 0%,#0a2350 48%,#123a7e 100%);color:#fff;padding:142px 0 66px;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(120,170,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(120,170,255,.05) 1px,transparent 1px);background-size:52px 52px;mask-image:radial-gradient(ellipse 75% 90% at 75% 20%,#000 10%,transparent 100%);-webkit-mask-image:radial-gradient(ellipse 75% 90% at 75% 20%,#000 10%,transparent 100%)}
.page-hero .orb{opacity:.24}
.page-hero .wrap{position:relative;z-index:2}
.breadcrumb{font-size:12px;color:#9db6dd;margin-bottom:20px;display:flex;align-items:center;gap:9px;flex-wrap:wrap}
.breadcrumb a{color:#9db6dd;transition:color .2s}
.breadcrumb a:hover{color:#fff}
.breadcrumb i{font-style:normal;opacity:.5}
.page-hero h1{font-size:clamp(30px,3.8vw,46px);line-height:1.24;letter-spacing:-.03em;margin:12px 0 14px;max-width:820px}
.page-hero h1 .accent{color:var(--blue3)}
.page-hero .ph-sub{font-size:15px;line-height:1.85;color:#bed2ef;max-width:700px}
.ph-actions{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}
.ph-meta{display:flex;gap:22px;margin-top:26px;flex-wrap:wrap;font-size:12.5px;color:#9db6dd}
.ph-meta span{display:inline-flex;align-items:center;gap:6px}
.ph-meta svg{width:14px;height:14px;color:var(--blue3)}

/* ---------- 内页通用区块 ---------- */
.page-sec{padding:76px 0}
.page-sec.alt{background:#fff}
.page-sec.soft{background:linear-gradient(180deg,#f5f8fd,#eef4fd)}
.page-sec .sec-head{margin-bottom:40px}
.page-sec .sec-head.center{text-align:center}
.page-sec .sec-head.center .sub{margin:0 auto}
.sec-title{font-size:clamp(24px,3vw,34px);line-height:1.3;letter-spacing:-.02em;margin:12px 0 10px}
.grid-1{display:grid;grid-template-columns:1fr;gap:14px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.mt-40{margin-top:40px}.mt-24{margin-top:24px}.mt-56{margin-top:56px}

.icard{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:26px;transition:transform .3s,box-shadow .3s,border-color .3s;position:relative;overflow:hidden}
.page-sec .ci .ic svg{color:var(--blue)}
.page-sec .qr-box{transition:transform .25s,background .25s}
.page-sec .qr-box:hover{transform:translateY(-2px);background:#eaf3ff}
.icard:hover{transform:translateY(-5px);box-shadow:var(--sd);border-color:#d3e2fb}
.icard .ico{width:44px;height:44px;border-radius:12px;background:#eef4ff;color:var(--blue);display:grid;place-items:center;margin-bottom:16px}
.icard .ico svg{width:21px;height:21px}
.icard h3{font-size:16.5px;margin-bottom:9px;line-height:1.4}
.icard p{font-size:13px;line-height:1.85;color:var(--muted)}
.icard .num{position:absolute;top:16px;right:20px;font-size:30px;font-weight:600;color:#eef3fb;letter-spacing:-.05em}
.icard ul{list-style:none;margin-top:14px}
.icard ul li{font-size:12.5px;color:var(--ink2);padding:6px 0 6px 18px;position:relative;line-height:1.6}
.icard ul li::before{content:"";position:absolute;left:2px;top:13px;width:6px;height:6px;border-radius:50%;background:var(--blue2)}
.icard .tagline{display:inline-block;font-size:11px;color:var(--blue);background:#eef4ff;padding:4px 10px;border-radius:6px;margin-bottom:12px}

.link-card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:30px 26px;transition:.3s;position:relative;overflow:hidden}
.link-card:hover{transform:translateY(-6px);box-shadow:var(--sd);border-color:#c9ddff}
.link-card .big{width:46px;height:46px;border-radius:13px;background:linear-gradient(135deg,var(--blue2),var(--blue));color:#fff;display:grid;place-items:center;margin-bottom:18px;box-shadow:0 8px 20px rgba(29,111,242,.25)}
.link-card .big svg{width:22px;height:22px}
.link-card h3{font-size:18px;margin-bottom:8px}
.link-card p{font-size:13px;color:var(--muted);line-height:1.8;min-height:48px}
.link-card .go{display:inline-flex;align-items:center;gap:6px;color:var(--blue);font-size:13px;margin-top:16px;font-weight:500}
.link-card:hover .go svg{transform:translateX(4px)}
.link-card .go svg{width:14px;height:14px;transition:transform .25s}

/* ---------- 功能矩阵 / 对比表 ---------- */
.matrix-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;box-shadow:var(--sd-sm)}
table.matrix{width:100%;border-collapse:collapse;font-size:13px;min-width:660px}
table.matrix th,table.matrix td{padding:14px 16px;text-align:center;border-bottom:1px solid #eef2f9}
table.matrix th:first-child,table.matrix td:first-child{text-align:left;width:34%}
table.matrix thead th{background:#f5f9ff;color:var(--ink);font-size:13px;font-weight:600}
table.matrix thead th.hot{background:#eaf3ff;color:var(--blue)}
table.matrix tbody tr:hover{background:#fafcff}
table.matrix tbody tr:last-child td{border-bottom:0}
table.matrix td{color:var(--ink2)}
table.matrix .yes{color:var(--green)}
table.matrix .no{color:#b9c5d8}
table.matrix .yes svg{width:16px;height:16px;display:inline-block}
table.matrix .grp td{background:#f8fbff;font-weight:600;color:var(--navy);text-align:left;font-size:12.5px}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:10px;overflow:hidden;transition:border-color .2s,box-shadow .2s}
.faq details[open]{border-color:#c9ddff;box-shadow:var(--sd-sm)}
.faq summary{padding:16px 20px;font-size:14px;font-weight:500;cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;color:var(--blue);line-height:1;flex:none}
.faq details[open] summary::after{content:"−"}
.faq .ans{padding:0 20px 18px;font-size:13px;line-height:1.9;color:var(--muted)}

/* ---------- 案例卡 ---------- */
.case-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;transition:.3s}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--sd)}
.case-top{padding:22px 24px 18px;background:linear-gradient(135deg,#f4f8ff,#fff);border-bottom:1px solid var(--line)}
.case-top .type{font-size:11px;color:var(--blue);background:#e6f0ff;display:inline-block;padding:4px 10px;border-radius:6px;margin-bottom:12px}
.case-top h3{font-size:17px;margin-bottom:5px}
.case-top small{font-size:11.5px;color:var(--muted)}
.case-body{padding:22px 24px}
.case-body .lbl{font-size:11px;color:var(--blue);letter-spacing:.06em;margin-bottom:6px}
.case-body p{font-size:12.8px;line-height:1.85;color:var(--ink2);margin-bottom:16px}
.case-kpi{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;border-top:1px solid var(--line);padding-top:16px}
.case-kpi b{display:block;font-size:19px;color:var(--navy);font-variant-numeric:tabular-nums}
.case-kpi small{font-size:10.5px;color:var(--muted)}
.case-quote{font-size:12.5px;line-height:1.85;color:var(--ink2);background:#f7faff;border-left:3px solid var(--blue2);padding:12px 14px;border-radius:0 8px 8px 0;margin-top:16px}

/* ---------- 实施流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative;margin-top:40px}
.flow::before{content:"";position:absolute;top:24px;left:10%;right:10%;height:2px;background:linear-gradient(90deg,var(--blue2),#cfe2ff);z-index:0}
.flow-step{position:relative;z-index:1;text-align:center;padding:0 12px}
.flow-step .dot{width:48px;height:48px;border-radius:50%;background:#fff;border:2px solid var(--blue);color:var(--blue);display:grid;place-items:center;margin:0 auto 16px;font-weight:600;font-size:15px;box-shadow:0 6px 18px rgba(29,111,242,.14)}
.flow-step h4{font-size:14.5px;margin-bottom:7px}
.flow-step p{font-size:12px;color:var(--muted);line-height:1.75}
.flow-step small{display:block;font-size:11px;color:var(--blue);margin-top:8px}

/* ---------- 统一 CTA 带 ---------- */
.cta-band{background:linear-gradient(135deg,#0a2350,#123a7e);color:#fff;padding:56px 0;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:#1d6ff2;filter:blur(100px);opacity:.28;right:-80px;top:-220px}
.cta-band .wrap{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{font-size:clamp(22px,2.8vw,32px);line-height:1.35;letter-spacing:-.02em}
.cta-band p{font-size:13.5px;color:#b6cbea;margin-top:9px;line-height:1.75}
.cta-band .acts{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 页底「下一步」 ---------- */
.next-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:48px}
.next-nav a{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 20px;transition:.25s;display:flex;align-items:center;justify-content:space-between;gap:12px}
.next-nav a:hover{border-color:var(--blue);transform:translateY(-3px);box-shadow:var(--sd-sm)}
.next-nav b{display:block;font-size:14px;margin-bottom:4px}
.next-nav small{font-size:11.5px;color:var(--muted)}
.next-nav svg{width:17px;height:17px;color:var(--blue);flex:none}

/* ---------- 文档页（隐私政策 / 服务说明） ---------- */
.doc{max-width:820px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:38px 42px}
.doc h2{font-size:19px;margin:30px 0 10px;padding-top:22px;border-top:1px solid var(--line)}
.doc h2:first-of-type{margin-top:0;padding-top:0;border-top:0}
.doc p,.doc li{font-size:13.5px;line-height:1.95;color:var(--ink2)}
.doc ul{padding-left:20px;margin:8px 0 14px}
.doc li{margin-bottom:5px}
.doc .meta{font-size:12px;color:var(--muted);margin-bottom:24px}
.doc code{background:#f2f6fc;border:1px solid var(--line);border-radius:4px;padding:1px 6px;font-size:12px;color:var(--blue)}

/* ---------- 站点地图 ---------- */
.sitemap-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.sitemap-col h3{font-size:14px;margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.sitemap-col a{display:block;font-size:12.5px;color:var(--muted);padding:6px 0;transition:.2s}
.sitemap-col a:hover{color:var(--blue);transform:translateX(3px)}
.sitemap-col a span{font-size:10.5px;color:#a8b6cc;margin-left:6px}

/* ---------- 页脚四栏 ---------- */
.footer .ftop{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:30px;padding-bottom:30px}
.footer .fcol b{font-size:13px;margin-bottom:12px}
.footer .fcol a{display:block;font-size:12px;color:#8ba4c9;padding:5px 0}
.footer .fcol a:hover{color:#fff}
.footer .fdesc{font-size:12px;line-height:1.95;color:#8ba4c9;max-width:280px;margin-top:10px}
.footer .fbadge{display:inline-block;font-size:11px;border:1px solid rgba(255,255,255,.2);border-radius:6px;padding:5px 10px;margin:10px 8px 0 0;color:#a9c0e2}

/* ---------- 原型标注 ---------- */
.note{background:#fffbe9;border:1px dashed #f0cf7a;border-radius:10px;padding:12px 16px;font-size:12px;line-height:1.8;color:#8a6a20;margin-top:22px}
.note b{color:#a97c12}
.tag-soft{display:inline-block;font-size:10.5px;color:#a97c12;background:#fff5d9;border:1px solid #f2dda3;padding:3px 9px;border-radius:5px;vertical-align:middle;margin-left:8px}
.disclaimer{font-size:11.5px;color:#9aabc5;line-height:1.8;margin-top:14px}

/* ---------- 404 ---------- */
.err-page{min-height:70vh;display:grid;place-items:center;text-align:center;padding:120px 0 80px}
.err-page .code{font-size:clamp(88px,14vw,150px);font-weight:700;line-height:1;letter-spacing:-.06em;background:linear-gradient(135deg,var(--blue2),var(--blue));-webkit-background-clip:text;background-clip:text;color:transparent}
.err-page h1{font-size:24px;margin:8px 0 12px}
.err-page p{font-size:14px;color:var(--muted);line-height:1.8;margin-bottom:26px}
.err-page .acts{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}

/* ---------- 内页动效（轻量） ---------- */
.page-hero h1,.page-hero .ph-sub,.page-hero .ph-actions{animation:phIn .7s cubic-bezier(.2,.8,.2,1) both}
.page-hero .ph-sub{animation-delay:.1s}.page-hero .ph-actions{animation-delay:.2s}
@keyframes phIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}

/* ---------- 响应式 ---------- */
@media(max-width:1080px){
  .footer .ftop{grid-template-columns:1fr 1fr 1fr;gap:24px}
  .sitemap-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:repeat(2,1fr);row-gap:30px}
  .flow::before{display:none}
  .grid-4{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:820px){
  .page-hero{padding:120px 0 50px}
  .page-sec{padding:58px 0}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .next-nav{grid-template-columns:1fr}
  .footer .ftop{grid-template-columns:1fr 1fr}
  .cta-band .wrap{flex-direction:column;align-items:flex-start}
  .doc{padding:26px 20px}
  .nav-dropdown .sub-menu{position:static;box-shadow:none;border:0;padding:4px 0 4px 14px;min-width:0;display:block;background:transparent}
  .nav-dropdown .sub-menu a{color:var(--ink2)}
}
@media(max-width:480px){
  .footer .ftop,.sitemap-grid{grid-template-columns:1fr}
  .flow{grid-template-columns:1fr}
  .case-kpi{grid-template-columns:1fr 1fr 1fr}
}
/* Demo 沙箱接入状态条 */
.demo-ready,.demo-wait{display:inline-block;margin-top:18px;padding:9px 18px;border-radius:20px;font-size:12.5px;line-height:1.6;border:1px solid}
.demo-ready{background:rgba(18,138,85,.09);border-color:rgba(18,138,85,.3);color:#0f7a4c}
.demo-wait{background:rgba(37,87,214,.07);border-color:rgba(37,87,214,.22);color:#1742ad}