:root {
  --bg: #0f1420;
  --bg-soft: #161d2c;
  --panel: #1c2536;
  --line: #2a3446;
  --text: #e8edf7;
  --dim: #93a0b8;
  --accent: #4f8cff;
  --accent-2: #24c8a8;
  --vip: #f5b301;
  --danger: #ff5c5c;
  --radius: 12px;
  --shadow: 0 8px 28px rgba(0, 0, 0, .35);
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: radial-gradient(1200px 600px at 80% -10%, #1b2740 0, var(--bg) 60%) no-repeat, var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.65;
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.main { padding: 28px 0 60px; }
.muted { color: var(--dim); }
.small { font-size: 12px; }
.inline { display: inline; }

/* ---------------- header ---------------- */
.site-header {
  position: sticky; top: 0; z-index: 20;
  backdrop-filter: blur(10px);
  background: rgba(15, 20, 32, .82);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; gap: 22px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-logo { width: 30px; height: 30px; }
.brand-name { font-weight: 700; font-size: 17px; letter-spacing: .3px; }
.brand-tag { color: var(--dim); font-size: 12px; padding-left: 6px; border-left: 1px solid var(--line); }
.nav { display: flex; gap: 18px; margin-left: auto; }
.nav a { color: var(--dim); font-size: 14px; }
.nav a:hover { color: var(--text); text-decoration: none; }
.nav-user { display: flex; align-items: center; gap: 10px; }

/* ---------------- buttons ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 34px; padding: 0 14px; border-radius: 8px; border: 1px solid transparent;
  font-size: 14px; cursor: pointer; transition: .15s; white-space: nowrap;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: linear-gradient(135deg, var(--accent), #3a6fe0); color: #fff; }
.btn-vip { background: linear-gradient(135deg, #ffcc4d, #f5a623); color: #241a00; font-weight: 600; }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--text); }
.btn-block { width: 100%; }
.btn-sm { height: 28px; padding: 0 10px; font-size: 13px; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }

/* ---------------- cards ---------------- */
.card {
  background: linear-gradient(180deg, var(--panel), var(--bg-soft));
  border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 18px;
}
.badge {
  display: inline-flex; align-items: center; height: 22px; padding: 0 8px;
  border-radius: 999px; font-size: 12px; background: #23304a; color: var(--dim);
}
.badge-vip { background: rgba(245, 179, 1, .16); color: var(--vip); }
.tag {
  display: inline-block; padding: 1px 8px; border-radius: 999px;
  background: #223049; color: var(--dim); font-size: 12px; margin: 0 6px 6px 0;
}

/* ---------------- hero ---------------- */
.hero {
  display: grid; grid-template-columns: 1.2fr .8fr; gap: 30px;
  align-items: center; padding: 40px 0 26px;
}
.hero h1 { font-size: 38px; line-height: 1.25; margin: 0 0 14px; }
.hero h1 em { font-style: normal; color: var(--accent-2); }
.hero p { color: var(--dim); font-size: 16px; max-width: 560px; }
.hero-actions { display: flex; gap: 12px; margin-top: 22px; }
.hero-art {
  position: relative; aspect-ratio: 4/3; border-radius: 16px; overflow: hidden;
  border: 1px solid var(--line); background:
    radial-gradient(400px 200px at 30% 20%, rgba(79,140,255,.35), transparent 60%),
    radial-gradient(300px 200px at 80% 70%, rgba(36,200,168,.28), transparent 60%),
    #121a29;
  display: flex; align-items: center; justify-content: center;
}
.hero-art img { width: 62%; opacity: .92; }

.section-title { display: flex; align-items: baseline; gap: 12px; margin: 34px 0 16px; }
.section-title h2 { margin: 0; font-size: 20px; }
.section-title .more { margin-left: auto; color: var(--dim); font-size: 13px; }

/* ---------------- grids ---------------- */
.grid { display: grid; gap: 16px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.asset-card { display: flex; flex-direction: column; gap: 10px; }
.asset-thumb {
  aspect-ratio: 16/10; border-radius: 10px; overflow: hidden; background: #101828;
  display: flex; align-items: center; justify-content: center; border: 1px solid var(--line);
}
.asset-thumb img { width: 100%; height: 100%; object-fit: cover; }
.asset-thumb .placeholder { font-size: 34px; opacity: .7; }
.asset-meta { display: flex; align-items: center; gap: 8px; color: var(--dim); font-size: 12px; }
.asset-title { font-weight: 600; color: var(--text); }
.asset-title:hover { color: var(--accent); }

.case-card .case-cover {
  aspect-ratio: 16/9; border-radius: 10px; overflow: hidden; background: #101828;
  border: 1px solid var(--line); display: flex; align-items: center; justify-content: center;
}
.case-card .case-cover img { width: 100%; height: 100%; object-fit: cover; }

/* ---------------- filters ---------------- */
.filters { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 18px; }
.chip {
  padding: 5px 12px; border-radius: 999px; border: 1px solid var(--line);
  color: var(--dim); font-size: 13px; background: #162034;
}
.chip.active, .chip:hover { color: #fff; border-color: var(--accent); background: rgba(79,140,255,.18); text-decoration: none; }
.search { display: flex; gap: 8px; margin-left: auto; }
.input, select.input, textarea.input {
  height: 36px; border-radius: 8px; border: 1px solid var(--line);
  background: #121a29; color: var(--text); padding: 0 12px; font-size: 14px;
  min-width: 200px; font-family: var(--font);
}
textarea.input { height: auto; padding: 10px 12px; }
.input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(79,140,255,.15); }

/* ---------------- forms ---------------- */
.form-card { max-width: 460px; margin: 40px auto; }
.form-row { margin-bottom: 14px; }
.form-row label { display: block; margin-bottom: 6px; color: var(--dim); font-size: 13px; }
.form-row .input { width: 100%; }
.form-help { color: var(--dim); font-size: 12px; margin-top: 4px; }
.form-errors { color: var(--danger); font-size: 13px; margin-top: 4px; }
.auth-alt { text-align: center; color: var(--dim); font-size: 13px; margin-top: 16px; }

/* ---------------- messages ---------------- */
.messages { margin-top: 16px; display: grid; gap: 8px; }
.message {
  padding: 10px 14px; border-radius: 10px; border: 1px solid var(--line);
  background: #182236; font-size: 14px;
}
.message.success { border-color: rgba(36,200,168,.45); background: rgba(36,200,168,.10); }
.message.error { border-color: rgba(255,92,92,.45); background: rgba(255,92,92,.10); }

/* ---------------- tables ---------------- */
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th, .table td { padding: 10px 12px; border-bottom: 1px solid var(--line); text-align: left; }
.table th { color: var(--dim); font-weight: 500; font-size: 13px; }
.status-paid { color: var(--accent-2); }
.status-pending { color: var(--vip); }
.status-cancelled { color: var(--dim); }

/* ---------------- vip ---------------- */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 18px 0 28px; }
.plan {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 20px;
  background: linear-gradient(180deg, #1c2637, #151d2c); position: relative;
}
.plan.featured { border-color: var(--vip); box-shadow: 0 0 0 1px rgba(245,179,1,.25), var(--shadow); }
.plan .plan-name { font-size: 16px; font-weight: 600; }
.plan .plan-price { font-size: 30px; font-weight: 700; color: var(--vip); margin: 8px 0 2px; }
.plan .plan-price span { font-size: 14px; color: var(--dim); font-weight: 400; }
.plan ul { padding-left: 18px; color: var(--dim); font-size: 13px; margin: 12px 0 16px; }

/* ---------------- footer ---------------- */
.site-footer { border-top: 1px solid var(--line); padding: 22px 0; margin-top: 30px; }
.footer-inner { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; }
.footer-links { display: flex; gap: 16px; color: var(--dim); font-size: 13px; }
.footer-links a { color: var(--dim); }

/* ---------------- misc ---------------- */
.detail-grid { display: grid; grid-template-columns: 1.4fr .6fr; gap: 22px; align-items: start; }
.breadcrumb { color: var(--dim); font-size: 13px; margin-bottom: 14px; }
.video-box { aspect-ratio: 16/9; background: #000; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); }
.video-box video { width: 100%; height: 100%; display: block; }
.kv { display: grid; grid-template-columns: 90px 1fr; gap: 8px 12px; font-size: 14px; }
.kv .k { color: var(--dim); }

@media (max-width: 960px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3, .plans { grid-template-columns: repeat(2, 1fr); }
  .hero { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .brand-tag { display: none; }
  .nav { display: none; }
}
@media (max-width: 620px) {
  .grid-4, .grid-3, .grid-2, .plans { grid-template-columns: 1fr; }
  .hero h1 { font-size: 28px; }
  .search { width: 100%; margin-left: 0; }
  .search .input { flex: 1; min-width: 0; }
}