:root{
  --primary:#2b6cff; --primary-d:#1b4fd6; --accent:#ff7a18; --ink:#1f2533;
  --muted:#7a8499; --line:#e8ecf3; --bg:#f5f7fb; --card:#fff; --ok:#1faa59; --warn:#e8a200;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.6;font-size:15px}
a{color:inherit;text-decoration:none}
.container{max-width:1180px;margin:0 auto;padding:0 18px}
.muted{color:var(--muted)}
.btn{display:inline-block;background:var(--primary);color:#fff;padding:11px 22px;border-radius:8px;
  font-weight:600;border:none;cursor:pointer;font-size:15px;transition:.15s}
.btn:hover{background:var(--primary-d)}
.btn.accent{background:var(--accent)}
.btn.accent:hover{filter:brightness(.95)}
.btn.ghost{background:#fff;color:var(--primary);border:1px solid var(--primary)}
.btn.lg{padding:14px 30px;font-size:17px}
.btn-mini{padding:6px 14px;border-radius:6px;background:var(--primary);color:#fff;font-size:13px}
.btn-mini.ghost{background:transparent;color:var(--primary);border:1px solid var(--primary)}
.btn-block{width:100%;text-align:center}

/* Header */
.site-header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.nav{display:flex;align-items:center;gap:18px;height:64px}
.brand{font-weight:800;font-size:19px;color:var(--primary);white-space:nowrap}
.nav-links{display:flex;gap:6px;flex:1}
.nav-links a{padding:8px 14px;border-radius:7px;color:#3a4256;font-weight:500}
.nav-links a:hover{background:var(--bg)}
.nav-links a.active{color:var(--primary);background:#eef3ff}
.nav-user{display:flex;align-items:center;gap:8px}
.uname{font-size:13px;color:var(--muted)}
.site-main{min-height:calc(100vh - 64px - 160px)}

/* Hero */
.hero{background:linear-gradient(120deg,#2b6cff,#5b8cff 55%,#8a6bff);color:#fff;padding:64px 0}
.hero h1{font-size:38px;margin:0 0 14px;font-weight:800;letter-spacing:1px}
.hero p{font-size:17px;opacity:.94;margin:0 0 26px;max-width:680px}
.searchbar{display:flex;max-width:620px;background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 10px 30px rgba(0,0,0,.12)}
.searchbar input{flex:1;border:none;outline:none;padding:14px 16px;font-size:15px}
.searchbar button{border:none;background:var(--accent);color:#fff;padding:0 26px;font-size:15px;font-weight:600;cursor:pointer}
.hero-stats{display:flex;gap:34px;margin-top:30px;flex-wrap:wrap}
.hero-stats .num{font-size:26px;font-weight:800}
.hero-stats .lbl{font-size:13px;opacity:.9}

/* Sections */
.section{padding:48px 0}
.section h2{font-size:26px;margin:0 0 6px}
.section .sub{color:var(--muted);margin:0 0 26px}
.grid{display:grid;gap:18px}
.cats{grid-template-columns:repeat(4,1fr)}
.cat{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px;transition:.15s}
.cat:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(30,60,140,.08);border-color:#cfe0ff}
.cat .ico{font-size:30px}
.cat h3{margin:12px 0 6px;font-size:18px}
.cat p{margin:0;color:var(--muted);font-size:13px}
.features{grid-template-columns:repeat(3,1fr)}
.feature{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px}
.feature .ico{font-size:26px}
.feature h3{margin:10px 0 6px;font-size:17px}
.feature p{margin:0;color:var(--muted);font-size:14px}

/* Cards / media */
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.media-grid{grid-template-columns:repeat(3,1fr)}
.media-card{display:flex;flex-direction:column;gap:8px;transition:.15s}
.media-card:hover{box-shadow:0 10px 26px rgba(30,60,140,.08);border-color:#cfe0ff}
.media-card .top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}
.media-card .name{font-weight:700;font-size:16px}
.media-card .type{font-size:12px;color:var(--primary);background:#eef3ff;padding:2px 8px;border-radius:20px;white-space:nowrap}
.media-card .meta{font-size:13px;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px 12px}
.tag{display:inline-block;font-size:12px;background:var(--bg);border:1px solid var(--line);color:#566;padding:1px 8px;border-radius:20px}
.tag.green{color:var(--ok);border-color:#bfe9cf;background:#effaf3}
.tag.orange{color:var(--warn);border-color:#f4e2b3;background:#fef8ea}
.price{font-size:18px;color:var(--accent);font-weight:800}
.price small{font-size:12px;color:var(--muted);font-weight:400}
.media-card .foot{display:flex;justify-content:space-between;align-items:center;margin-top:4px}

/* Tabs / filters */
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.tab{padding:8px 18px;border-radius:8px;background:#fff;border:1px solid var(--line);font-weight:600;cursor:pointer;color:#3a4256}
.tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.filters{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;display:flex;flex-wrap:wrap;gap:12px;align-items:flex-end;margin-bottom:20px}
.filters .fld{display:flex;flex-direction:column;gap:5px}
.filters label{font-size:12px;color:var(--muted)}
.filters input,.filters select{padding:9px 11px;border:1px solid var(--line);border-radius:8px;font-size:14px;min-width:140px;outline:none}
.filters input:focus,.filters select:focus{border-color:var(--primary)}

/* Pagination */
.pager{display:flex;gap:6px;justify-content:center;margin:26px 0;flex-wrap:wrap}
.pager a,.pager span{padding:8px 13px;border:1px solid var(--line);border-radius:8px;background:#fff;color:#3a4256}
.pager a.active{background:var(--primary);color:#fff;border-color:var(--primary)}
.pager a.disabled{color:#bbb;pointer-events:none}

/* Auth / forms */
.auth-wrap{max-width:420px;margin:50px auto}
.auth-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:30px}
.auth-card h2{margin:0 0 4px}
.form .fld{margin-bottom:16px;display:flex;flex-direction:column;gap:6px}
.form label{font-size:13px;color:#445}
.form input,.form select,.form textarea{padding:11px 13px;border:1px solid var(--line);border-radius:9px;font-size:15px;outline:none;font-family:inherit}
.form input:focus,.form select:focus,.form textarea:focus{border-color:var(--primary)}
.form textarea{min-height:160px;resize:vertical}
.row{display:flex;gap:12px;flex-wrap:wrap}
.row .fld{flex:1}
.notice{padding:12px 14px;border-radius:9px;margin-bottom:16px;font-size:14px}
.notice.err{background:#fdecec;color:#c0341d;border:1px solid #f6c9c0}
.notice.ok{background:#eafaf0;color:#1f7a45;border:1px solid #bfe9cf}
.notice.info{background:#eef3ff;color:#234; border:1px solid #cfe0ff}

/* Detail */
.detail-head{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;flex-wrap:wrap}
.detail-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:20px;margin-top:20px}
.kv{display:grid;grid-template-columns:auto 1fr;gap:8px 16px;font-size:14px}
.kv dt{color:var(--muted);white-space:nowrap}
.kv dd{margin:0}
.aside{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px}
.aside .price{font-size:30px;margin:8px 0 16px}

/* Submit picker */
.picker{max-height:340px;overflow:auto;border:1px solid var(--line);border-radius:10px}
.picker-row{display:flex;align-items:center;gap:10px;padding:10px 12px;border-bottom:1px solid var(--line);font-size:14px}
.picker-row:last-child{border-bottom:none}
.picker-row .pname{flex:1;font-weight:600}
.picker-row .pprice{color:var(--accent);font-weight:700}
.selected-box{background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px;margin-top:10px}
.selected-box .item{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px dashed var(--line);font-size:14px}
.total-bar{display:flex;justify-content:space-between;align-items:center;margin-top:14px;font-size:16px}
.total-bar b{font-size:22px;color:var(--accent)}

/* Member */
.dash{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:24px}
.dash .box{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px}
.dash .box .n{font-size:26px;font-weight:800;color:var(--primary)}
.table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.table th,.table td{padding:12px 14px;text-align:left;font-size:14px;border-bottom:1px solid var(--line)}
.table th{background:var(--bg);color:#556;font-weight:600}
.table tr:last-child td{border-bottom:none}
.badge{font-size:12px;padding:2px 9px;border-radius:20px;background:var(--bg);color:#566;border:1px solid var(--line)}
.badge.ok{color:var(--ok);background:#effaf3;border-color:#bfe9cf}
.badge.warn{color:var(--warn);background:#fef8ea;border-color:#f4e2b3}

/* Footer */
.site-footer{background:#0f1830;color:#cdd6ea;margin-top:40px;padding:40px 0 24px}
.footer-cols{display:grid;grid-template-columns:2fr 1fr 2fr;gap:30px}
.footer-cols h4{color:#fff;margin:0 0 12px;font-size:15px}
.footer-cols a{display:block;color:#aab6d4;padding:4px 0;font-size:14px}
.footer-cols a:hover{color:#fff}
.f-brand{font-weight:800;font-size:18px;color:#fff;margin-bottom:10px}
.copyright{border-top:1px solid #243150;margin-top:26px;padding-top:18px;color:#8b97b8;font-size:13px;text-align:center}

/* misc */
.center{text-align:center}
.mt{margin-top:18px}.mb{margin-bottom:18px}
.empty{padding:50px;text-align:center;color:var(--muted);background:#fff;border:1px dashed var(--line);border-radius:12px}

/* 首页联系我们 */
.contact-home{background:#fff;border:1px solid var(--line);border-radius:16px;padding:34px 28px;margin-top:8px}
.contact-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:8px}
.ccard{background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:20px 18px;text-align:center;transition:.18s}
.ccard:hover{transform:translateY(-3px);box-shadow:0 8px 20px rgba(30,50,90,.08);border-color:#cdd8ee}
.ccard .ico{font-size:26px;margin-bottom:8px}
.ccard .ct{font-size:13px;color:var(--muted);margin-bottom:4px}
.ccard .cv{font-size:17px;font-weight:700;color:#1a2540}
.ccard .cs{font-size:12px;color:var(--muted);margin-top:6px}

@media(max-width:860px){
  .cats,.features,.media-grid,.detail-grid,.dash{grid-template-columns:1fr 1fr}
  .contact-cards{grid-template-columns:1fr 1fr}
  .hero h1{font-size:30px}
  .nav-links{display:none}
}
@media(max-width:560px){
  .cats,.features,.media-grid,.detail-grid,.dash{grid-template-columns:1fr}
  .contact-cards{grid-template-columns:1fr}
  .hero-stats{gap:20px}
}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;margin-top:4px}
.seg-item{padding:8px 16px;font-size:14px;cursor:pointer;border-right:1px solid var(--line);margin:0;display:flex;align-items:center;gap:6px;user-select:none}
.seg-item:last-child{border-right:none}

/* 充值金额预设 */
.presets{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px}
.chip{padding:8px 14px;border:1px solid var(--line);background:#fff;border-radius:20px;font-size:14px;cursor:pointer;transition:.15s;color:#1a2540}
.chip:hover{border-color:var(--accent);color:var(--accent)}
.chip:active{transform:scale(.96)}
.seg-item input{margin:0}
.seg-item:hover{background:#f7f8fb}

/* ===== BIZ 合作媒体 ===== */
.src-badge{display:inline-block;margin-left:8px;padding:2px 10px;font-size:13px;font-weight:600;border-radius:12px;background:#e8f0fe;color:#1a56db;vertical-align:middle}
.price-range{display:flex;align-items:center;gap:4px;white-space:nowrap}
.price-range input{width:70px}
.detail-head{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin:8px 0 18px}
.detail-head h2{margin:0;font-size:24px}
.price-big{font-size:26px;font-weight:700;color:var(--accent)}
.price-big small{font-size:14px;font-weight:400;color:#888}
.detail-main{max-width:760px}
.detail-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden;margin-bottom:18px}
.detail-table th,.detail-table td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);font-size:15px;vertical-align:top}
.detail-table th{width:120px;background:#f7f8fb;color:#54607a;font-weight:600;white-space:nowrap}
.detail-table tr:last-child th,.detail-table tr:last-child td{border-bottom:none}
.detail-table a{color:var(--accent);word-break:break-all}
.crumbs{padding:18px 0 0;color:#8893a8;font-size:14px}
.crumbs a{color:var(--accent)}
.crumbs span{color:#54607a}
.tag.orange{background:#fff3e0;color:#c2600a;border:1px solid #ffd9a8}