/* ============================================================
   零创网 (www.0com.cn) 主域名首页样式表
   独立样式文件：原内联 <style> 已提取至此，由 system_home.php 通过
   <link rel="stylesheet" href="css/style.css"> 引入。
   纯 CSS 实现（无 Tailwind / 无预编译 purge 风险）。
   ============================================================ */

/* ============ 全局 ============ */
:root{
  --brand:#ff6a00; --brand-dark:#e85f00; --brand-light:#fff3eb;
  --ink:#161a22; --ink-soft:#5b6472; --muted:#9aa3b2;
  --line:#ececf1; --bg:#ffffff; --bg-soft:#fafafb;
  --radius:16px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{overflow-x:hidden;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.no-scrollbar{-ms-overflow-style:none;scrollbar-width:none}
.no-scrollbar::-webkit-scrollbar{display:none}

/* ============ 顶部导航 ============ */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:saturate(180%) blur(12px);
  border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:60px}
.logo{display:flex;align-items:baseline;gap:7px;font-weight:800;letter-spacing:.3px}
.logo-zh{color:var(--brand);font-size:21px}
.logo-en{color:var(--ink-soft);font-size:13px;font-weight:600;letter-spacing:.5px}
.nav-links{display:none;gap:26px;font-size:15px;color:var(--ink-soft)}
.nav-links a:hover{color:var(--brand)}
.nav-cta{display:inline-flex;align-items:center;gap:6px;background:var(--brand);color:#fff;
  padding:9px 18px;border-radius:999px;font-size:14px;font-weight:600;white-space:nowrap;
  transition:background .15s ease}
.nav-cta:hover{background:var(--brand-dark)}
@media(min-width:860px){ .nav-links{display:flex} }

/* ============ HERO ============ */
.hero{position:relative;overflow:hidden;padding:72px 0 56px;text-align:center;
  background:
    radial-gradient(1200px 420px at 50% -120px, rgba(255,106,0,.10), transparent 70%),
    linear-gradient(180deg,#fff 0%, #fff7f1 100%)}
.hero-badge{display:inline-flex;align-items:center;gap:7px;background:var(--brand-light);color:var(--brand);
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:999px;margin-bottom:22px}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 4px rgba(255,106,0,.18)}
.hero h1{font-size:clamp(28px,6vw,52px);line-height:1.18;font-weight:800;letter-spacing:-.5px}
.hero h1 .hl{color:var(--brand)}
.hero-sub{margin:18px auto 0;max-width:640px;color:var(--ink-soft);font-size:clamp(15px,2.4vw,18px)}

/* 搜索框 */
.search{margin:34px auto 0;max-width:720px}
.search-box{display:flex;align-items:center;gap:10px;background:#fff;border:1.5px solid var(--line);
  border-radius:14px;padding:10px 12px 10px 18px;box-shadow:0 10px 30px rgba(20,20,40,.06);transition:border-color .2s,box-shadow .2s}
.search-box:focus-within{border-color:var(--brand);box-shadow:0 0 0 4px rgba(255,106,0,.12),0 10px 30px rgba(20,20,40,.06)}
.search-box svg{flex:0 0 auto;width:20px;height:20px;color:var(--muted)}
.search-input{flex:1 1 auto;min-width:0;border:none;outline:none;font-size:16px;background:transparent;color:var(--ink)}
.search-input::placeholder{color:#b6bcc8}
.search-btn{flex:0 0 auto;background:var(--brand);color:#fff;border:none;border-radius:10px;
  height:46px;padding:0 22px;font-size:15px;font-weight:700;cursor:pointer;white-space:nowrap;transition:background .15s}
.search-btn:hover{background:var(--brand-dark)}
@media(max-width:560px){
  .search-box{flex-wrap:wrap;border-radius:14px;padding:12px}
  .search-box svg{display:none}
  .search-input{width:100%;flex:1 1 100%;height:44px;padding:0 4px;font-size:16px}
  .search-btn{width:100%;flex:1 1 100%;margin-top:8px}
}

/* 热门检索 chips */
.chips{margin:18px auto 0;display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.chip{font-size:13px;color:var(--ink-soft);background:#fff;border:1px solid var(--line);
  padding:6px 13px;border-radius:999px;cursor:pointer;transition:.15s}
.chip:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-light)}

/* 数据大盘 */
.stats{margin:44px auto 0;display:grid;grid-template-columns:repeat(2,1fr);gap:14px;max-width:820px}
@media(min-width:760px){ .stats{grid-template-columns:repeat(4,1fr)} }
.stat{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px 14px;text-align:center}
.stat-num{font-size:clamp(26px,5.2vw,42px);font-weight:800;font-variant-numeric:tabular-nums;color:var(--brand);letter-spacing:-1px;line-height:1.12}
.stat-label{margin-top:6px;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.stat-live{color:#16a34a;font-weight:800}

/* ============ 通用区块 ============ */
.section{padding:64px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;flex-wrap:wrap;gap:14px;margin-bottom:24px}
.section-title{font-size:clamp(22px,4vw,30px);font-weight:800;letter-spacing:-.3px}
.section-title small{font-weight:600;color:var(--muted);font-size:.6em;margin-left:8px}
.section-desc{color:var(--ink-soft);font-size:15px;margin-top:8px;max-width:640px}

/* 数据流筛选 */
.filter-bar{display:flex;gap:8px}
.filter-btn{border:1px solid var(--line);background:#fff;color:var(--ink-soft);font-size:13px;font-weight:600;
  padding:8px 16px;border-radius:999px;cursor:pointer;transition:.15s}
.filter-btn:hover{color:var(--ink)}
.filter-btn.active{background:var(--brand);color:#fff;border-color:var(--brand)}

/* ============ 数据流表格（复用 b2bgeo 语义类，纯 CSS 无 purge 风险） ============ */
.feed-wrap{border:1px solid var(--line);border-radius:var(--radius);background:#fff;overflow:hidden}
.feed-table{width:100%;border-collapse:collapse;text-align:left;font-size:14px}
.feed-table thead th{font-size:12px;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);
  font-weight:600;padding:14px 16px;border-bottom:1px solid var(--line);background:var(--bg-soft);white-space:nowrap}
.feed-table tbody td{padding:14px 16px;border-bottom:1px solid #f3f3f6;vertical-align:middle}
.feed-table tbody tr:last-child td{border-bottom:none}
.data-row{transition:background .15s,box-shadow .15s}
.data-row:hover{background:var(--brand-light);box-shadow:inset 3px 0 0 var(--brand)}
.name-link{font-weight:700;color:var(--ink);font-size:15px}
.name-link:hover{color:var(--brand)}
.meta{margin-top:3px;font-size:12.5px;color:var(--ink-soft)}
.col-spec,.col-price,.col-source{display:none}
@media(min-width:768px){ .col-spec{display:table-cell} }
@media(min-width:1024px){ .col-price,.col-source{display:table-cell} }
.col-action{text-align:right;white-space:nowrap}

/* 实体类型胶囊 */
.pill-prod{display:inline-flex;align-items:center;border-radius:9999px;padding:.18rem .65rem;font-size:.75rem;font-weight:600;background:#fff1e6;color:#c2410c}
.pill-comp{display:inline-flex;align-items:center;border-radius:9999px;padding:.18rem .65rem;font-size:.75rem;font-weight:600;background:#e8f0fe;color:#1d4ed8}

/* 时效微标 */
.feed-fresh{display:inline-flex;align-items:center;gap:.35rem;margin-top:.4rem;font-size:.6875rem;color:#94a3b8}
.feed-fresh::before{content:"";width:.4rem;height:.4rem;border-radius:50%;background:#22c55e;animation:feedPulse 1.6s ease-in-out infinite}
@keyframes feedPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.7)}}

/* 导流 CTA */
.feed-cta{display:inline-flex;align-items:center;gap:.2rem;border-radius:.5rem;padding:.32rem .7rem;font-size:.8125rem;font-weight:600;transition:.15s}
.feed-cta-orange{background:#fff4ec;color:#ea580c;border:1px solid #ffd9bf}
.feed-cta-orange:hover{background:#ffe8d6}
.feed-cta-gray{background:#f1f5f9;color:#475569;border:1px solid #e2e8f0}
.feed-cta-gray:hover{background:#fff4ec;color:#ea580c;border-color:#ffd9bf}

.feed-more{text-align:center;margin-top:18px}
.feed-more a{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:600;font-size:14px}
.feed-more a:hover{color:var(--brand-dark)}
.feed-empty{padding:40px 16px;text-align:center;color:var(--muted);font-size:14px}

/* ============ 招商 / 套餐 ============ */
.pitch{text-align:center;max-width:720px;margin:0 auto}
.pitch h2{font-size:clamp(22px,4vw,32px);font-weight:800;letter-spacing:-.3px;line-height:1.3}
.pitch p{margin-top:14px;color:var(--ink-soft);font-size:16px}
.packages{margin-top:40px;display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:780px){ .packages{grid-template-columns:repeat(3,1fr)} }
.pkg{position:relative;display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:20px;padding:28px 24px;transition:transform .2s,box-shadow .2s}
.pkg:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(20,20,40,.08)}
.pkg.featured{border:2px solid var(--brand);box-shadow:0 16px 40px rgba(255,106,0,.14)}
.pkg-tag{position:absolute;top:-12px;left:24px;background:var(--brand);color:#fff;font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px}
.pkg-name{font-size:19px;font-weight:800}
.pkg-tagline{margin-top:6px;font-size:13px;font-weight:600;color:var(--brand)}
.pkg-desc{margin-top:8px;font-size:13px;color:var(--ink-soft);min-height:38px}
.pkg-price{margin-top:14px;font-size:14px;color:var(--muted)}
.pkg-price b{font-size:28px;color:var(--ink);font-weight:800}
.pkg-feats{list-style:none;margin:18px 0 0;display:flex;flex-direction:column;gap:10px;font-size:13.5px;color:var(--ink-soft)}
.pkg-feats li{display:flex;gap:8px;align-items:flex-start}
.pkg-feats svg{flex:0 0 auto;width:16px;height:16px;color:#16a34a;margin-top:2px}
.pkg-cta{margin-top:auto;display:inline-flex;justify-content:center;align-items:center;gap:6px;height:46px;border-radius:12px;
  font-weight:700;font-size:15px;margin-top:22px;transition:.15s}
.pkg-cta.primary{background:var(--brand);color:#fff}
.pkg-cta.primary:hover{background:var(--brand-dark)}
.pkg-cta.ghost{background:#fff;color:var(--brand);border:2px solid var(--brand)}
.pkg-cta.ghost:hover{background:var(--brand-light)}

/* 底部转化长条 CTA */
.bottom-cta-wrap{margin-top:42px;text-align:center}
.bottom-cta{display:inline-flex;justify-content:center;align-items:center;gap:8px;
  background:var(--brand);color:#fff;font-size:18px;font-weight:800;letter-spacing:.2px;
  padding:18px 44px;border-radius:14px;box-shadow:0 14px 34px rgba(255,106,0,.28);
  transition:background .15s,transform .15s;white-space:nowrap}
.bottom-cta:hover{background:var(--brand-dark);transform:translateY(-2px)}
@media(max-width:640px){
  .bottom-cta-wrap{margin-top:34px}
  .bottom-cta{display:flex;width:100%;padding:18px 20px;font-size:17px;border-radius:12px}
}

/* ============ 底部 ============ */
.footer{border-top:1px solid var(--line);padding:34px 0;color:var(--muted);font-size:14px;text-align:center}
.footer a{color:var(--ink-soft)}
.footer a:hover{color:var(--brand)}
.footer .f-links{margin-bottom:10px;display:flex;gap:18px;justify-content:center;flex-wrap:wrap}

/* ============================================================
   Phase 8 — AI时代企业数字身份入口
   ============================================================ */
/* 暗色区块 */
.dark-sec{background:#0f1419;color:#e8eaed}
.dark-sec .section-title{color:#f1f3f5}
.dark-sec .section-desc{color:#88929b}

/* 模块1: Hero */
.hero-v2{position:relative;overflow:hidden;padding:80px 0 60px;text-align:center;
  background:linear-gradient(135deg,#0f1419 0%,#181d24 50%,#1a1f26 100%)}
.hero-v2::before{content:'';position:absolute;inset:0;
  background:radial-gradient(900px 320px at 50% -120px,rgba(255,106,0,.12),transparent 70%);
  pointer-events:none}
.hero-v2 .wrap{position:relative;z-index:1}
.hero-v2 h1{font-size:clamp(32px,6.5vw,56px);line-height:1.15;font-weight:800;letter-spacing:-.6px;color:#fff}
.hero-v2 h1 .hl{background:linear-gradient(135deg,#ff8a3d,#ff6a00);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-v2 .hero-sub{color:#88929b;font-size:clamp(15px,2.2vw,18px);max-width:600px;margin:16px auto 0}
.hero-acts{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:32px}
.hero-btn{display:inline-flex;align-items:center;gap:8px;padding:14px 30px;border-radius:999px;font-size:15px;font-weight:700;transition:.15s}
.hero-btn.primary{background:linear-gradient(135deg,#ff8a3d,#ff6a00);color:#fff;box-shadow:0 8px 24px rgba(255,106,0,.25)}
.hero-btn.primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(255,106,0,.35)}
.hero-btn.ghost{border:1.5px solid rgba(255,255,255,.2);color:#ccc}
.hero-btn.ghost:hover{background:rgba(255,255,255,.06);border-color:var(--brand);color:#fff}
.hero-stats{margin-top:40px;display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:620px;margin-left:auto;margin-right:auto}
.hero-stat{text-align:center}
.hero-stat-num{font-size:clamp(24px,4.5vw,38px);font-weight:800;color:var(--brand);line-height:1.1}
.hero-stat-label{font-size:12px;color:#6b7280;margin-top:4px}

/* 模块2: 对比区块 */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:20px}
.compare-col{padding:28px 24px;border-radius:16px;background:#fff;border:1px solid var(--line)}
.compare-col.old{background:#f9fafb}
.compare-col.new{border-color:rgba(255,106,0,.25);background:linear-gradient(135deg,#fff7f1,#fff)}
.compare-col h3{font-size:17px;font-weight:700;margin-bottom:12px}
.compare-col.old h3{color:var(--muted)}
.compare-col.new h3{color:var(--brand)}
.compare-col ul{list-style:none;padding:0;font-size:14px;color:var(--ink-soft)}
.compare-col li{padding:6px 0;display:flex;gap:8px;align-items:center}
.compare-col .ico{width:18px;height:18px;flex:0 0 auto}
.compare-col .ico.gray{color:var(--muted)}
.compare-col .ico.green{color:#16a34a}

/* 模块3: 生态地图 */
.eco-map{text-align:center;padding:40px 0}
.eco-map .eco-center{display:inline-block;background:linear-gradient(135deg,#ff8a3d,#ff6a00);color:#fff;padding:18px 36px;border-radius:16px;font-size:20px;font-weight:800;letter-spacing:1px}
.eco-map .eco-sub{color:#88929b;font-size:14px;margin-top:6px}
.eco-map .eco-lines{display:flex;justify-content:center;gap:40px;margin-top:24px;flex-wrap:wrap}
.eco-map .eco-line{position:relative;padding:4px 0}
.eco-map .eco-branch{display:flex;justify-content:center;gap:20px;margin-top:20px;flex-wrap:wrap}
.eco-map .eco-node{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:16px 28px;min-width:180px;text-align:center}
.eco-map .eco-node .name{font-size:15px;font-weight:700;color:#e8eaed}
.eco-map .eco-node .desc{font-size:12px;color:#6b7280;margin-top:4px}
.eco-map .eco-node .url{font-size:11px;color:#9ca3af;margin-top:2px}

/* 模块4: 数据流标题增强 */
.feed-label::before{content:'●';color:#22c55e;margin-right:6px;font-size:10px;animation:feedPulse 1.6s ease-in-out infinite}

/* 模块5: 6项能力网格 */
.cap-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;margin-top:20px}
.cap-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 18px;text-align:center;transition:.15s}
.cap-card:hover{border-color:var(--brand);box-shadow:0 4px 16px rgba(255,106,0,.08)}
.cap-icon{width:40px;height:40px;border-radius:10px;background:var(--brand-light);display:flex;align-items:center;justify-content:center;margin:0 auto 10px}
.cap-icon svg{width:22px;height:22px;color:var(--brand)}
.cap-name{font-size:14px;font-weight:700;color:var(--ink)}
.cap-desc{font-size:12px;color:var(--ink-soft);margin-top:4px}

/* 模块6: 检测入口 */
.detect-cta{background:linear-gradient(135deg,#0f1419,#1a1f26);border-radius:20px;padding:48px 24px;text-align:center;margin-top:20px}
.detect-cta h2{font-size:clamp(20px,3.5vw,28px);font-weight:800;color:#f1f3f5}
.detect-cta p{color:#88929b;margin-top:8px;font-size:15px}
.detect-cta .btn{margin-top:18px;display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:999px;font-size:15px;font-weight:700;
  background:linear-gradient(135deg,#ff8a3d,#ff6a00);color:#fff;box-shadow:0 8px 24px rgba(255,106,0,.25);transition:.15s}
.detect-cta .btn:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(255,106,0,.35)}

/* 页面通用Hero（/companies/ /ai/） */
.pg-hero{padding:56px 0 40px;text-align:center;
  background:radial-gradient(800px 300px at 50% -100px,rgba(255,106,0,.08),transparent 70%),#fafafb}
.pg-hero h1{font-size:clamp(26px,5vw,40px);font-weight:800;letter-spacing:-.4px}
.pg-sub{color:var(--ink-soft);font-size:15px;margin-top:6px}
.pg-stats{color:var(--muted);font-size:13px;margin-top:4px}

/* 企业生态网格 */
.ent-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.ent-card{display:flex;flex-direction:column;gap:6px;padding:18px;border:1px solid var(--line);border-radius:14px;background:#fff;transition:.15s;text-decoration:none}
.ent-card:hover{border-color:var(--brand);box-shadow:0 4px 16px rgba(255,106,0,.08)}
.ent-name{font-weight:700;font-size:15px;color:var(--ink)}
.ent-ind{font-size:12px;color:var(--muted)}
.ent-url{font-size:11px;color:var(--brand);margin-top:auto}

/* AI知识中心 */
.ai-content{max-width:760px;margin:0 auto}
.ai-art{margin-bottom:36px}
.ai-art h2{font-size:20px;font-weight:800;margin-bottom:10px;color:var(--ink)}
.ai-art p{color:var(--ink-soft);font-size:15px;line-height:1.7;margin-bottom:10px}
.ai-art ul,.ai-art ol{padding-left:20px;margin:10px 0}
.ai-art li{margin:6px 0;color:var(--ink-soft);font-size:14px;line-height:1.6}
.ai-art b{color:var(--ink)}
.ai-cta{margin-top:16px}
.ai-art .btn{display:inline-flex;align-items:center;gap:6px;background:var(--brand);color:#fff;padding:12px 24px;border-radius:999px;font-size:14px;font-weight:700;transition:.15s}
.ai-art .btn:hover{background:var(--brand-dark)}

/* 导航活动状态 */
.nav-links a.active,.nav-links a.active:hover{color:var(--brand);font-weight:700}

/* 响应式 */
@media(max-width:900px){
  .compare-grid{grid-template-columns:1fr}
  .eco-map .eco-branch{flex-direction:column;align-items:center}
}
@media(max-width:600px){
  .hero-stats{grid-template-columns:1fr}
  .ent-grid{grid-template-columns:1fr}
  .cap-grid{grid-template-columns:repeat(2,1fr)}
}

/* ===== 卡片网格（企业/产品/行业列表） ===== */
.ind-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;margin-top:12px}
.ind-card{display:flex;flex-direction:column;gap:6px;padding:16px;border:1px solid var(--line);border-radius:12px;background:#fff;text-decoration:none;color:var(--ink);transition:all .15s}
.ind-card:hover{border-color:var(--brand);box-shadow:0 3px 12px rgba(255,106,0,.1);text-decoration:none}
.ind-card-h{display:flex;justify-content:space-between;align-items:center}
.ind-card-t{font-weight:700;font-size:15px;color:var(--ink)}
.ind-card-c{background:var(--brand);color:#fff;font-weight:700;font-size:12px;border-radius:20px;padding:2px 10px;min-width:32px;text-align:center}
.ind-card-ds{font-size:13px;color:var(--sub);margin:0;line-height:1.5}

/* ===== 分页 ===== */
.pager{display:flex;flex-direction:column;align-items:center;gap:10px;margin-top:24px}
.pager-inner{display:flex;align-items:center;gap:4px}
.pg{display:inline-flex;align-items:center;justify-content:center;min-width:36px;height:36px;padding:0 10px;border:1px solid var(--line);border-radius:8px;font-size:13px;color:var(--ink);text-decoration:none;transition:all .15s}
.pg:hover{border-color:var(--brand);color:var(--brand);text-decoration:none}
.pg-on,.pager .pg-on{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:700}
.pg-disabled{color:#d0d5db;border-color:#eaecf0;cursor:default;pointer-events:none}
.pg-dot{border:none;min-width:24px;color:#94a3b8;pointer-events:none}
.pg-prev,.pg-next{font-weight:600}
.pager-info{font-size:12px;color:#94a3b8}

/* ===== 行业/分类筛选 ===== */
.filter-bar{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0}
.filter-bar a{display:inline-block;padding:5px 14px;border:1px solid var(--line);border-radius:999px;font-size:13px;color:var(--sub);text-decoration:none;transition:all .15s}
.filter-bar a:hover{border-color:var(--brand);color:var(--brand);text-decoration:none}
.filter-bar a.on{background:var(--brand);border-color:var(--brand);color:#fff}