:root {
  --bg: #f5f7fa;
  --surface: #ffffff;
  --ink: #1d2733;
  --ink-soft: #5b6b7c;
  --line: #e3e8ef;
  --primary: #0f3d63;
  --primary-2: #15568c;
  --accent: #3fb6a8;
  --accent-soft: #e6f6f3;
  --warn: #b9892f;
  --warn-soft: #fbf2e2;
  --ok: #2e8b6f;
  --radius: 12px;
  --shadow: 0 6px 24px rgba(15, 61, 99, 0.08);
  --maxw: 1160px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.ico { display: inline-block; vertical-align: -4px; }

/* ---------- Header ---------- */
#site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 18px; height: 66px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--primary); }
.brand-name { font-size: 16px; letter-spacing: .3px; }
.logo-mark { border-radius: 8px; }
.nav { display: flex; gap: 6px; margin-left: 18px; }
.nav a {
  padding: 8px 14px; border-radius: 8px; color: var(--ink-soft); font-weight: 500;
  transition: background .15s, color .15s;
}
.nav a:hover { background: var(--bg); color: var(--primary); }
.nav a.active { background: var(--accent-soft); color: var(--primary); }
.header-auth { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.user-box { display: flex; align-items: center; gap: 10px; }
.uname { font-weight: 600; color: var(--primary); }
.nav-toggle { display: none; background: none; border: 0; color: var(--primary); cursor: pointer; }

.btn-primary {
  background: var(--primary); color: #fff; padding: 9px 18px; border-radius: 9px;
  font-weight: 600; border: 0; cursor: pointer; transition: background .15s; display: inline-flex; align-items: center; gap: 6px;
}
.btn-primary:hover { background: var(--primary-2); }
.btn-ghost {
  background: transparent; color: var(--primary); border: 1px solid var(--line);
  padding: 8px 14px; border-radius: 9px; cursor: pointer; font-weight: 500; transition: border-color .15s, background .15s;
}
.btn-ghost:hover { border-color: var(--primary); background: var(--bg); }
.btn-accent { background: var(--accent); color: #08332e; }
.btn-accent:hover { filter: brightness(.96); }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-danger { color: #a23; border-color: #e6c3c9; }
.btn-danger:hover { background: #fbeef0; }

/* ---------- Footer ---------- */
#site-footer { background: #0c2e4a; color: #cdd9e5; margin-top: 56px; }
.footer-inner { display: grid; grid-template-columns: 1.6fr 1fr 1.2fr; gap: 32px; padding: 44px 20px 28px; }
.footer-brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; font-size: 15px; }
.footer-desc { color: #9fb1c2; font-size: 13.5px; margin-top: 12px; max-width: 360px; }
.footer-col h4 { color: #fff; font-size: 14px; margin: 4px 0 12px; }
.footer-col a { display: block; color: #9fb1c2; padding: 4px 0; font-size: 13.5px; }
.footer-col a:hover { color: #fff; }
.footer-col p { display: flex; align-items: center; gap: 6px; color: #9fb1c2; font-size: 13.5px; margin: 6px 0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1); padding: 16px 20px;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px;
  font-size: 13px; color: #88a; color: #9fb1c2;
}
.footer-bottom a { color: #9fb1c2; text-decoration: underline; }

/* ---------- Hero ---------- */
.hero { background: linear-gradient(135deg, #0f3d63 0%, #15568c 60%, #1d6f8c 100%); color: #fff; }
.hero-inner { padding: 64px 20px 72px; max-width: var(--maxw); margin: 0 auto; }
.hero h1 { font-size: 34px; margin: 0 0 14px; font-weight: 700; letter-spacing: .5px; }
.hero p { font-size: 16px; color: #d6e6f2; max-width: 640px; margin: 0 0 26px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero .btn-primary { background: #fff; color: var(--primary); }
.hero .btn-primary:hover { background: #eef4fa; }
.hero .btn-ghost { color: #fff; border-color: rgba(255,255,255,.5); }
.hero .btn-ghost:hover { background: rgba(255,255,255,.12); }
.hero-stats { display: flex; gap: 36px; margin-top: 40px; flex-wrap: wrap; }
.hero-stats div { color: #cfe0ee; }
.hero-stats b { display: block; color: #fff; font-size: 26px; }

/* ---------- Sections ---------- */
.section { padding: 48px 0; }
.section-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 22px; gap: 12px; flex-wrap: wrap; }
.section-head h2 { font-size: 23px; margin: 0; color: var(--primary); }
.section-head a { color: var(--primary); font-weight: 600; }
.section-head .sub { color: var(--ink-soft); font-size: 14px; }

/* ---------- Category grid ---------- */
.cat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.cat-card {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; display: flex; gap: 14px; align-items: center; transition: transform .15s, box-shadow .15s, border-color .15s;
}
.cat-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--accent); }
.cat-card .ico-wrap {
  width: 46px; height: 46px; border-radius: 11px; background: var(--accent-soft);
  color: var(--primary); display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.cat-card h3 { margin: 0 0 2px; font-size: 15.5px; color: var(--ink); }
.cat-card span { color: var(--ink-soft); font-size: 13px; }

/* ---------- Listing cards ---------- */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.lcard {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; display: flex; flex-direction: column; transition: transform .15s, box-shadow .15s, border-color .15s;
}
.lcard:hover { transform: translateY(-3px); box-shadow: var(--shadow); border-color: var(--accent); }
.lcard .tag { display: inline-flex; align-items: center; gap: 5px; background: var(--accent-soft); color: var(--primary); font-size: 12.5px; font-weight: 600; padding: 4px 10px; border-radius: 20px; width: fit-content; }
.lcard h3 { margin: 12px 0 8px; font-size: 16.5px; line-height: 1.4; }
.lcard p { color: var(--ink-soft); font-size: 13.5px; margin: 0 0 14px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.lcard .meta { margin-top: auto; display: flex; justify-content: space-between; align-items: center; color: var(--ink-soft); font-size: 12.5px; border-top: 1px solid var(--line); padding-top: 12px; }
.lcard .meta .right { display: flex; gap: 12px; align-items: center; }
.verified { display: inline-flex; align-items: center; gap: 4px; color: var(--ok); font-weight: 600; }
.verified svg { color: var(--ok); }

/* ---------- Filter bar ---------- */
.filter-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 22px; align-items: center; }
.chip {
  border: 1px solid var(--line); background: var(--surface); padding: 7px 14px; border-radius: 20px;
  cursor: pointer; font-size: 13.5px; color: var(--ink-soft); transition: all .15s; display: inline-flex; align-items: center; gap: 6px;
}
.chip:hover { border-color: var(--accent); color: var(--primary); }
.chip.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.search-input { flex: 1; min-width: 200px; border: 1px solid var(--line); border-radius: 9px; padding: 9px 12px; font-size: 14px; outline: none; }
.search-input:focus { border-color: var(--accent); }

/* ---------- Detail ---------- */
.detail-wrap { display: grid; grid-template-columns: 1fr 320px; gap: 24px; align-items: start; }
.detail-main { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.detail-main .tag { display: inline-flex; align-items: center; gap: 5px; background: var(--accent-soft); color: var(--primary); font-size: 13px; font-weight: 600; padding: 5px 12px; border-radius: 20px; }
.detail-main h1 { font-size: 25px; margin: 14px 0 10px; line-height: 1.35; }
.detail-meta { color: var(--ink-soft); font-size: 13.5px; display: flex; gap: 18px; flex-wrap: wrap; margin-bottom: 20px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.detail-body { font-size: 15.5px; line-height: 1.9; white-space: pre-wrap; color: #243240; }
.detail-side { display: flex; flex-direction: column; gap: 16px; }
.side-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.side-card h4 { margin: 0 0 12px; color: var(--primary); }
.side-card p { margin: 8px 0; display: flex; align-items: center; gap: 8px; font-size: 14px; }
.side-card .label { color: var(--ink-soft); }
.verify-banner { display: flex; align-items: center; gap: 8px; background: var(--accent-soft); color: var(--ok); padding: 12px 14px; border-radius: 10px; font-weight: 600; font-size: 14px; }

/* ---------- Forms ---------- */
.form-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; max-width: 720px; margin: 0 auto; }
.form-card h2 { margin: 0 0 6px; color: var(--primary); }
.form-card .hint { color: var(--ink-soft); font-size: 14px; margin: 0 0 22px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 600; margin-bottom: 7px; font-size: 14px; }
.field label .req { color: #c0392b; }
.field input, .field textarea, .field select {
  width: 100%; border: 1px solid var(--line); border-radius: 9px; padding: 11px 13px; font-size: 14.5px;
  font-family: inherit; outline: none; background: #fff; color: var(--ink);
}
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--accent); }
.field textarea { min-height: 140px; resize: vertical; }
.field .err { color: #c0392b; font-size: 13px; margin-top: 6px; display: none; }
.field.invalid .err { display: block; }
.field.invalid input, .field.invalid textarea { border-color: #e0a3a0; }
.agree { display: flex; align-items: flex-start; gap: 9px; margin: 6px 0 16px; font-size: 13.5px; color: var(--ink-soft); }
.agree input { margin-top: 4px; width: 16px; height: 16px; flex-shrink: 0; }
.agree a { color: var(--primary); text-decoration: underline; }
.form-msg { padding: 12px 14px; border-radius: 9px; font-size: 14px; margin-bottom: 16px; display: none; }
.form-msg.show { display: block; }
.form-msg.err { background: #fbeef0; color: #a23; border: 1px solid #f0d2d4; }
.form-msg.ok { background: var(--accent-soft); color: var(--ok); border: 1px solid #cfeae6; }

/* ---------- Auth ---------- */
.auth-wrap { max-width: 440px; margin: 56px auto; }
.auth-tabs { display: flex; gap: 0; margin-bottom: 8px; border-bottom: 2px solid var(--line); }
.auth-tabs button { background: none; border: 0; padding: 12px 18px; cursor: pointer; font-size: 16px; font-weight: 600; color: var(--ink-soft); border-bottom: 2px solid transparent; margin-bottom: -2px; }
.auth-tabs button.active { color: var(--primary); border-bottom-color: var(--primary); }

/* ---------- About ---------- */
.about-hero { background: linear-gradient(135deg, #0f3d63, #1d6f8c); color: #fff; padding: 56px 20px; }
.about-hero .wrap { max-width: var(--maxw); }
.about-hero h1 { font-size: 30px; margin: 0 0 12px; }
.about-hero p { color: #d6e6f2; max-width: 680px; font-size: 15.5px; margin: 0; }
.about-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 28px; padding: 44px 0; }
.about-block { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.about-block h2 { color: var(--primary); font-size: 19px; margin: 0 0 14px; display: flex; align-items: center; gap: 8px; }
.about-block p { color: #2b3848; font-size: 15px; line-height: 1.9; margin: 0 0 12px; }
.value-list { list-style: none; padding: 0; margin: 0; }
.value-list li { display: flex; gap: 10px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.value-list li:last-child { border-bottom: 0; }
.value-list .ico { color: var(--accent); flex-shrink: 0; margin-top: 3px; }
.contact-card { background: var(--accent-soft); border-radius: var(--radius); padding: 24px; }
.contact-card h3 { color: var(--primary); margin: 0 0 14px; }
.contact-card p { display: flex; align-items: center; gap: 8px; margin: 9px 0; font-size: 14.5px; }

/* ---------- Admin ---------- */
.admin-layout { display: grid; grid-template-columns: 220px 1fr; gap: 22px; padding: 28px 0; }
.admin-side { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; height: fit-content; }
.admin-side h4 { margin: 0 0 10px; color: var(--primary); font-size: 14px; }
.admin-side button { display: block; width: 100%; text-align: left; background: none; border: 0; padding: 10px 12px; border-radius: 8px; cursor: pointer; color: var(--ink-soft); font-size: 14px; font-weight: 500; }
.admin-side button:hover { background: var(--bg); color: var(--primary); }
.admin-side button.active { background: var(--accent-soft); color: var(--primary); }
.admin-table { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.admin-table th, .admin-table td { padding: 13px 14px; text-align: left; border-bottom: 1px solid var(--line); font-size: 13.5px; }
.admin-table th { background: #f0f4f8; color: var(--ink-soft); font-weight: 600; }
.admin-table tr:last-child td { border-bottom: 0; }
.status-pill { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 12.5px; font-weight: 600; }
.status-pending { background: var(--warn-soft); color: var(--warn); }
.status-approved { background: #e3f3ec; color: var(--ok); }
.status-rejected { background: #fbeef0; color: #a23; }
.row-actions { display: flex; gap: 8px; }

/* ---------- Images ---------- */
.lcard .thumb {
  width: 100%; height: 170px; object-fit: cover; border-radius: 10px;
  background: var(--bg); border: 1px solid var(--line); margin-bottom: 14px;
}
.detail-hero {
  width: 100%; max-height: 380px; object-fit: cover; border-radius: 12px;
  background: var(--bg); border: 1px solid var(--line); margin-bottom: 22px;
}
.img-upload {
  border: 2px dashed var(--line); border-radius: 10px; padding: 18px;
  text-align: center; cursor: pointer; color: var(--ink-soft); font-size: 14px;
  transition: border-color .15s, background .15s; position: relative;
}
.img-upload:hover { border-color: var(--accent); background: var(--accent-soft); }
.img-upload input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.img-preview { max-width: 100%; max-height: 220px; border-radius: 10px; border: 1px solid var(--line); margin-top: 12px; }
.admin-thumb { width: 76px; height: 50px; object-fit: cover; border-radius: 6px; border: 1px solid var(--line); background: var(--bg); }

/* ---------- Empty / Notice ---------- */
.empty { text-align: center; padding: 60px 20px; color: var(--ink-soft); }
.notice { background: var(--accent-soft); color: var(--primary); border: 1px solid #cfeae6; border-radius: 10px; padding: 14px 16px; font-size: 14px; margin-bottom: 20px; display: flex; align-items: center; gap: 8px; }

/* ---------- Responsive ---------- */
@media (max-width: 920px) {
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .detail-wrap, .about-grid, .admin-layout { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav { display: none; position: absolute; top: 66px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 10px 20px; border-bottom: 1px solid var(--line); box-shadow: var(--shadow); }
  .nav.open { display: flex; }
  .nav-toggle { display: block; margin-left: auto; }
  .header-auth { display: none; }
  .cat-grid, .card-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 26px; }
}