:root {
  --bg: #0d1117;
  --bg-soft: #161b22;
  --bg-card: #1c232d;
  --border: #2d3540;
  --text: #e6edf3;
  --text-muted: #8b949e;
  --gold: #d4a017;
  --gold-soft: #e8b923;
  --gold-glow: rgba(212, 160, 23, 0.25);
  --teal: #4ecdc4;
  --danger: #f85149;
  --radius: 10px;
  --maxw: 1080px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--gold); text-decoration: none; transition: color .15s; }
a:hover { color: var(--gold-soft); }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(13, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; gap: 24px; height: 60px; }
.logo { font-weight: 800; font-size: 1.2rem; color: var(--text); letter-spacing: .5px; }
.logo:hover { color: var(--gold); }
.logo-img { height: 36px; width: auto; display: block; }
.main-nav { display: flex; gap: 20px; flex: 1; }
.main-nav a { color: var(--text-muted); font-size: .95rem; }
.main-nav a:hover { color: var(--gold); }
.nav-user { display: flex; align-items: center; gap: 12px; font-size: .9rem; color: var(--text-muted); }
.nav-toggle { display: none; background: none; border: 1px solid var(--border); color: var(--text); font-size: 1.4rem; line-height: 1; border-radius: 6px; padding: 6px 12px; cursor: pointer; }

/* Hero */
.hero {
  background: linear-gradient(135deg, #0d1117 0%, #1a1f2b 55%, #221a0d 100%);
  border-bottom: 1px solid var(--border);
  padding: 56px 0 48px;
  text-align: center;
}
.hero h1 {
  font-size: 2.1rem; font-weight: 800; letter-spacing: 1px;
  background: linear-gradient(90deg, #e8b923, #f5d878, #d4a017);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-slogan { margin-top: 14px; color: var(--text-muted); font-size: 1.05rem; }

.main-content { padding: 32px 0 64px; }

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: border-color .2s, transform .2s;
}
.card:hover { border-color: var(--gold); transform: translateY(-2px); }

.article-card h2 { font-size: 1.15rem; margin-bottom: 6px; }
.article-card h2 a { color: var(--text); }
.article-card h2 a:hover { color: var(--gold); }
.article-meta { color: var(--text-muted); font-size: .82rem; margin: 4px 0 10px; }
.excerpt { color: var(--text-muted); font-size: .93rem; }
.read-more { font-size: .9rem; font-weight: 600; }
.lock { font-size: .85em; }

.home-articles { margin-top: 28px; display: flex; flex-direction: column; gap: 16px; }
.home-categories h2, .home-articles h2 { font-size: 1.3rem; margin-bottom: 14px; color: var(--gold); }
.cat-row { display: flex; flex-wrap: wrap; gap: 10px; }
.cat-chip {
  background: var(--bg-soft); border: 1px solid var(--border);
  padding: 6px 14px; border-radius: 999px; font-size: .9rem; color: var(--text);
}
.cat-chip:hover { border-color: var(--gold); color: var(--gold); }

/* Article full */
.article-full h1 { font-size: 1.8rem; margin-bottom: 10px; line-height: 1.4; }
.article-body {
  margin-top: 24px; font-size: 1.02rem; line-height: 1.85;
}
.article-body h1, .article-body h2, .article-body h3 { margin: 1.4em 0 .6em; color: var(--gold); }
.article-body p { margin: .8em 0; }
.article-body img { max-width: 100%; height: auto; border-radius: 8px; margin: 12px 0; }
.article-body blockquote {
  border-left: 3px solid var(--gold); padding: 8px 16px; margin: 16px 0;
  background: var(--bg-soft); color: var(--text-muted); border-radius: 0 8px 8px 0;
}
.article-body pre { background: #0a0c10; padding: 14px; border-radius: 8px; overflow-x: auto; margin: 14px 0; border: 1px solid var(--border); }
.article-body code { background: var(--bg-soft); padding: 2px 6px; border-radius: 4px; font-size: .9em; }
.article-body pre code { background: none; padding: 0; }
.article-body a { text-decoration: underline; }
.article-body ul, .article-body ol { padding-left: 24px; margin: 12px 0; }
.article-body .video-wrap { position: relative; padding-bottom: 56.25%; height: 0; margin: 16px 0; }
.article-body .video-wrap iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; border-radius: 8px; }
.article-body table { border-collapse: collapse; width: 100%; margin: 16px 0; }
.article-body th, .article-body td { border: 1px solid var(--border); padding: 8px 12px; text-align: left; }
.article-body th { background: var(--bg-soft); }

/* Paywall */
.paywall { display: flex; justify-content: center; margin: 32px 0; }
.paywall-box {
  text-align: center; max-width: 460px; padding: 40px 32px;
  background: var(--bg-card); border: 1px solid var(--gold-glow); border-radius: var(--radius);
}
.paywall-icon { font-size: 3rem; margin-bottom: 12px; }
.paywall-box h2 { color: var(--gold); margin-bottom: 12px; }
.paywall-hint { color: var(--text-muted); margin: 12px 0 20px; }

/* Buttons */
.btn-primary {
  display: inline-block; background: linear-gradient(135deg, #d4a017, #e8b923);
  color: #0d1117; font-weight: 700; padding: 10px 22px; border-radius: 8px;
  border: none; cursor: pointer; margin: 4px;
}
.btn-primary:hover { color: #0d1117; filter: brightness(1.08); }
.btn-ghost {
  display: inline-block; background: transparent; color: var(--text-muted);
  border: 1px solid var(--border); padding: 10px 22px; border-radius: 8px; cursor: pointer; margin: 4px;
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }

/* Pay methods */
.pay-methods { display: flex; flex-wrap: wrap; gap: 18px; justify-content: center; margin: 0 0 24px; }
.pay-methods-label { color: var(--text-muted); }
.pay-methods label { display: flex; align-items: center; gap: 6px; cursor: pointer; color: var(--text); font-size: .95rem; }
.pay-methods input[type="radio"] { accent-color: var(--gold); cursor: pointer; }
.pay-method-checks { display: flex; flex-wrap: wrap; gap: 18px; }
.pay-method-checks label { display: flex; align-items: center; gap: 6px; cursor: pointer; color: var(--text); font-size: .95rem; }
.pay-method-checks input[type="checkbox"] { accent-color: var(--gold); cursor: pointer; }

/* Account / section titles */
.section-title { font-size: 1.25rem; color: var(--gold); margin: 28px 0 12px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.invite-box { margin-bottom: 16px; }
.invite-box p { margin: 8px 0; }
.invite-code { color: var(--gold); font-size: 1.5rem; letter-spacing: 2px; }
.invite-input { width: 100%; max-width: 480px; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border); background: var(--bg-soft); color: var(--text); font-size: .9rem; margin: 6px 0 12px; display: block; }

/* Pricing */
.page-title { text-align: center; font-size: 1.8rem; margin-bottom: 8px; }
.page-sub { text-align: center; color: var(--text-muted); margin-bottom: 28px; }
.page-sub.muted { margin-top: 24px; font-size: .9rem; }
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.price-card { text-align: center; padding: 32px 24px; }
.price-label { font-size: 1.05rem; font-weight: 700; color: var(--gold); margin-bottom: 14px; }
.price-amount { font-size: 2.4rem; font-weight: 800; }
.price-amount .cur { font-size: 1.1rem; color: var(--text-muted); }
.price-amount .per { font-size: 1rem; color: var(--text-muted); font-weight: 400; }
.price-note { color: var(--text-muted); font-size: .88rem; margin: 10px 0 18px; }

/* Forms */
.form-card { max-width: 400px; margin: 0 auto; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: .88rem; color: var(--text-muted); margin-bottom: 6px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg-soft); color: var(--text); font-size: .95rem;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--gold); outline: none; }
.form-error { color: var(--danger); font-size: .85rem; margin-top: 8px; min-height: 18px; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); padding: 32px 0; text-align: center; color: var(--text-muted); font-size: .88rem; margin-top: 40px; }
.footer-slogan { margin-top: 6px; }
.footer-meta { margin-top: 14px; font-size: .78rem; opacity: .6; }

.empty { color: var(--text-muted); text-align: center; padding: 30px; }
.center { text-align: center; }

/* Admin */
.admin-shell { display: flex; min-height: 100vh; }
.admin-sidebar { width: 220px; background: var(--bg-soft); border-right: 1px solid var(--border); padding: 20px 12px; position: sticky; top: 0; height: 100vh; }
.admin-sidebar .logo { display: block; margin-bottom: 24px; }
.admin-sidebar a { display: block; padding: 10px 14px; border-radius: 8px; color: var(--text-muted); margin-bottom: 4px; font-size: .93rem; }
.admin-sidebar a:hover, .admin-sidebar a.active { background: var(--bg-card); color: var(--gold); }
.admin-main { flex: 1; padding: 28px; }
.admin-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 16px; margin-bottom: 28px; }
.stat-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.stat-card .num { font-size: 1.7rem; font-weight: 800; color: var(--gold); }
.stat-card .label { color: var(--text-muted); font-size: .85rem; }

.table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.table th, .table td { border-bottom: 1px solid var(--border); padding: 10px 12px; text-align: left; }
.table th { color: var(--text-muted); font-weight: 600; }
.table tr:hover td { background: var(--bg-soft); }

/* Editor */
.editor-toolbar { display: flex; flex-wrap: wrap; gap: 6px; padding: 10px; background: var(--bg-soft); border: 1px solid var(--border); border-bottom: none; border-radius: 8px 8px 0 0; }
.editor-toolbar button, .editor-toolbar select {
  background: var(--bg-card); color: var(--text); border: 1px solid var(--border);
  border-radius: 6px; padding: 5px 10px; cursor: pointer; font-size: .85rem;
}
.editor-toolbar button:hover { border-color: var(--gold); color: var(--gold); }
.editor-area { min-height: 400px; padding: 16px; background: var(--bg-card); border: 1px solid var(--border); border-radius: 0 0 8px 8px; overflow-y: auto; }
.editor-area:focus { outline: none; }
.editor-area img { max-width: 100%; }
.editor-area .video-wrap { position: relative; padding-bottom: 56.25%; height: 0; margin: 12px 0; }
.editor-area .video-wrap iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: .75rem; }
.badge-public { background: rgba(78,205,196,.15); color: var(--teal); }
.badge-paid { background: rgba(212,160,23,.15); color: var(--gold); }
.badge-draft { background: rgba(139,148,158,.15); color: var(--text-muted); }

.toolbar-row { display: flex; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; align-items: center; }
.toolbar-row input, .toolbar-row select, .toolbar-row textarea {
  padding: 8px 12px; border-radius: 8px; border: 1px solid var(--border); background: var(--bg-soft); color: var(--text);
}
.toast { position: fixed; bottom: 24px; right: 24px; background: var(--bg-card); border: 1px solid var(--gold); border-radius: 8px; padding: 12px 18px; z-index: 999; box-shadow: 0 8px 30px rgba(0,0,0,.5); }

@media (max-width: 768px) {
  .header-inner { flex-wrap: wrap; height: auto; padding: 10px 0; gap: 10px; align-items: center; }
  .nav-toggle { display: block; margin-left: auto; }
  .main-nav { display: none; width: 100%; flex-direction: column; order: 3; }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 1rem; }
  .nav-user { display: none; width: 100%; order: 4; }
  .nav-user.open { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; padding: 10px 0; }
  .hero h1 { font-size: 1.5rem; }
  .admin-shell { flex-direction: column; }
  .admin-sidebar { width: 100%; height: auto; position: static; display: flex; flex-wrap: wrap; gap: 6px; }
  .admin-sidebar .logo { width: 100%; }
  .admin-main { padding: 16px; }
}