:root {
  --bg: #08111f;
  --bg-2: #0d1b31;
  --card: rgba(255, 255, 255, 0.08);
  --card-strong: rgba(255, 255, 255, 0.12);
  --text: #eef5ff;
  --muted: #9fb1c8;
  --line: rgba(255, 255, 255, 0.14);
  --accent: #6ee7b7;
  --accent-2: #93c5fd;
  --warning: #fde68a;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
  --radius: 24px;
  --max: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 20% 0%, rgba(110, 231, 183, 0.16), transparent 26rem),
    radial-gradient(circle at 80% 20%, rgba(147, 197, 253, 0.16), transparent 28rem),
    linear-gradient(180deg, var(--bg) 0%, #06101d 100%);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
p { color: var(--muted); line-height: 1.8; }

.site-header {
  width: min(var(--max), calc(100% - 32px));
  margin: 18px auto 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  background: rgba(8, 17, 31, 0.72);
  backdrop-filter: blur(16px);
  border-radius: 999px;
  position: sticky;
  top: 12px;
  z-index: 20;
}
.site-header.subpage { position: relative; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -0.02em; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 11px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #06101d;
}
.nav { display: flex; align-items: center; gap: 22px; color: var(--muted); font-size: 14px; }
.nav a:hover, .header-link:hover { color: var(--text); }
.header-link { color: var(--accent); font-weight: 700; }
.nav-toggle { display: none; border: 0; background: transparent; padding: 6px; }
.nav-toggle span { display: block; width: 22px; height: 2px; margin: 5px 0; background: var(--text); }

.section-pad { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; padding: 96px 0 72px; }
.section { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; padding: 72px 0; }
.section-narrow { max-width: 980px; }
.hero { display: grid; grid-template-columns: 1.1fr 0.9fr; align-items: center; gap: 54px; }
.eyebrow, .kicker { color: var(--accent); font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; }
h1, h2, h3 { margin: 0; line-height: 1.12; letter-spacing: -0.04em; }
h1 { font-size: clamp(46px, 8vw, 88px); }
h1 span { color: var(--accent); }
h2 { font-size: clamp(30px, 4.6vw, 52px); }
h3 { font-size: 22px; }
.hero-lead { font-size: 18px; max-width: 650px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 32px; }
.hero-actions.center { justify-content: center; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 22px;
  border-radius: 999px; font-weight: 800;
  border: 1px solid var(--line);
  cursor: pointer;
}
.btn-primary { background: var(--accent); color: #06101d; border-color: transparent; }
.btn-secondary { background: var(--card); color: var(--text); }
.btn.full { width: 100%; }

.hero-card, .pricing-card, .table-card, .contact-card, .stats-card, .order-card, .modal-card {
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--card-strong), rgba(255,255,255,0.05));
  box-shadow: var(--shadow);
  border-radius: var(--radius);
}
.hero-card { padding: 26px; }
.metric-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.metric-grid div { min-height: 132px; padding: 20px; border-radius: 20px; background: rgba(255,255,255,0.07); border: 1px solid var(--line); }
.metric-grid b { display: block; font-size: 24px; margin-bottom: 10px; }
.metric-grid span { color: var(--muted); }

.section-title { text-align: center; max-width: 720px; margin: 0 auto 36px; }
.section-title.compact { margin-bottom: 24px; }
.card-grid { display: grid; gap: 18px; }
.card-grid.four { grid-template-columns: repeat(4, 1fr); }
.card { padding: 24px; background: var(--card); border: 1px solid var(--line); border-radius: 22px; }
.card p { margin-bottom: 0; }

.compare-wrap { padding-top: 36px; }
.table-card { overflow: hidden; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 18px; text-align: left; border-bottom: 1px solid var(--line); }
th { color: var(--text); background: rgba(255,255,255,0.06); }
td:not(:first-child) { color: var(--muted); }
.risk-note { color: var(--warning); margin-top: 16px; }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.steps.three { grid-template-columns: repeat(3, 1fr); }
.step { padding: 24px; background: var(--card); border: 1px solid var(--line); border-radius: 22px; }
.step span { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 999px; background: var(--accent); color: #06101d; font-weight: 900; margin-bottom: 22px; }
.step p { margin-bottom: 0; }

.pricing-card { max-width: 520px; margin: 0 auto; padding: 32px; }
.plan-name { color: var(--accent); font-weight: 900; margin: 0 0 8px; }
.price { font-size: 54px; color: var(--text); margin: 20px 0; font-weight: 900; }
.price span { color: var(--muted); font-size: 18px; }
.feature-list, .check-list { padding: 0; margin: 24px 0; list-style: none; }
.feature-list li, .check-list li { padding: 10px 0 10px 28px; color: var(--muted); position: relative; }
.feature-list li::before, .check-list li::before { content: "✓"; position: absolute; left: 0; color: var(--accent); font-weight: 900; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; }
.payment-box { min-height: 180px; display: grid; place-items: center; border-radius: var(--radius); background: var(--card); border: 1px dashed var(--line); font-size: 22px; font-weight: 900; }
.contact-card { padding: 28px; }
.contact-card p, .stats-card p { display: flex; justify-content: space-between; gap: 20px; margin: 0; padding: 16px 0; border-bottom: 1px solid var(--line); }
.contact-card p:last-child, .stats-card p:last-child { border-bottom: 0; }
.contact-card b, .stats-card b { color: var(--text); }
.contact-card span, .stats-card span { color: var(--muted); }
.saas-strip { padding: 34px; border-radius: var(--radius); background: linear-gradient(135deg, rgba(110,231,183,0.13), rgba(147,197,253,0.08)); border: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.faq { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--card); }
.faq-item { width: 100%; display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; background: transparent; color: var(--text); border: 0; border-bottom: 1px solid var(--line); font: inherit; font-weight: 800; cursor: pointer; }
.faq-panel { display: none; padding: 0 24px 22px; color: var(--muted); line-height: 1.8; border-bottom: 1px solid var(--line); }
.faq-panel.open { display: block; }
.footer { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; padding: 28px 0 40px; display: flex; justify-content: space-between; gap: 20px; color: var(--muted); border-top: 1px solid var(--line); }

.product-page { padding-top: 64px; }
.product-hero { display: grid; grid-template-columns: 1fr 420px; gap: 42px; align-items: start; }
.product-hero h1, .affiliate-hero h1 { margin-top: 12px; }
.support-box { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.support-box span { padding: 10px 14px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); }
.order-card { padding: 28px; position: sticky; top: 100px; }
.order-card label, .order-card fieldset { display: block; border: 0; padding: 0; margin: 18px 0; color: var(--muted); }
.order-card input[type="text"], .order-card input[type="number"] { width: 100%; margin-top: 8px; border: 1px solid var(--line); border-radius: 14px; background: rgba(255,255,255,0.08); color: var(--text); padding: 14px 16px; font: inherit; outline: none; }
.radio { display: flex !important; align-items: center; gap: 10px; }
.order-total { display: flex; justify-content: space-between; align-items: center; padding: 16px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.notice { font-size: 13px; }
.product-detail { max-width: 980px; }
.detail-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 22px; }

.affiliate-hero { text-align: center; max-width: 920px; }
.affiliate-hero p { max-width: 680px; margin: 22px auto; }
.stats-card { padding: 20px 30px; }

.modal { position: fixed; inset: 0; z-index: 40; display: grid; place-items: center; background: rgba(0,0,0,0.68); padding: 20px; }
.modal[hidden] { display: none; }
.modal-card { max-width: 420px; width: 100%; padding: 28px; position: relative; }
.modal-close { position: absolute; right: 18px; top: 14px; background: transparent; color: var(--text); border: 0; font-size: 28px; cursor: pointer; }
.fake-qr { width: 180px; height: 180px; margin: 22px auto; display: grid; place-items: center; border-radius: 18px; background: repeating-linear-gradient(45deg, #fff 0 8px, #111 8px 16px); color: #111; font-weight: 900; }
.order-line { display: flex; justify-content: space-between; color: var(--muted); margin-bottom: 18px; }
.order-line b { color: var(--text); }

@media (max-width: 880px) {
  .site-header { border-radius: 24px; flex-wrap: wrap; }
  .nav-toggle { display: block; }
  .nav { display: none; width: 100%; flex-direction: column; align-items: flex-start; padding: 12px 0; }
  .nav.open { display: flex; }
  .header-link { display: none; }
  .hero, .split, .product-hero { grid-template-columns: 1fr; }
  .card-grid.four, .steps, .steps.three, .detail-grid { grid-template-columns: 1fr; }
  .metric-grid { grid-template-columns: 1fr; }
  .saas-strip, .footer { flex-direction: column; align-items: flex-start; }
  .order-card { position: static; }
}

.order-message {
  margin: 12px 0 0;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.08);
  font-size: 13px;
}
.order-message[data-type="success"] { color: var(--accent); }
.order-message[data-type="error"] { color: #fecaca; border-color: rgba(254,202,202,0.36); }
.order-message[data-type="loading"] { color: var(--warning); }
button:disabled { opacity: 0.62; cursor: not-allowed; }

.narrow-page { max-width: 760px; }
.status-card {
  padding: 34px;
  border-radius: var(--radius);
  background: var(--card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.status-card h1 { font-size: clamp(34px, 5vw, 56px); margin: 12px 0 14px; }
.order-summary {
  display: grid;
  gap: 0;
  margin: 24px 0;
  border: 1px solid var(--line);
  border-radius: 18px;
  overflow: hidden;
}
.order-summary div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
}
.order-summary div:last-child { border-bottom: 0; }
.order-summary span { color: var(--muted); }
.order-summary b { color: var(--text); text-align: right; }
.notice.strong {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(110,231,183,0.1);
  border: 1px solid rgba(110,231,183,0.22);
  color: var(--text);
}
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }

.admin-shell { width: min(var(--max), calc(100% - 32px)); margin: 0 auto; padding: 56px 0 80px; }
.admin-hero { max-width: 760px; margin-bottom: 28px; }
.admin-grid { display: grid; gap: 24px; }
.admin-grid.two { grid-template-columns: 1fr 1fr; }
.admin-panel {
  padding: 28px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--card-strong), rgba(255,255,255,0.05));
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.admin-panel h2, .admin-panel h3 { margin: 0; }
.admin-panel-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 22px;
}
.admin-panel-head p { margin: 8px 0 0; }
.admin-inline-actions,
.admin-actions,
.admin-toolbar,
.admin-filter-bar,
.admin-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.admin-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}
.admin-field,
.admin-field.full {
  display: block;
}
.admin-field.full { grid-column: 1 / -1; }
.admin-field span {
  display: block;
  color: var(--muted);
  margin-bottom: 8px;
}
.admin-panel input,
.admin-panel textarea,
.admin-panel select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255,255,255,0.08);
  color: var(--text);
  padding: 14px 16px;
  font: inherit;
  outline: none;
}
.admin-panel textarea { min-height: 132px; resize: vertical; }
.admin-check {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
}
.admin-check input { width: auto; margin: 0; }
.admin-status {
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.08);
  color: var(--muted);
}
.summary-chip {
  min-width: 132px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255,255,255,0.06);
}
.summary-chip span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.summary-chip strong {
  display: block;
  margin-top: 8px;
  font-size: 28px;
}
.recent-list,
.code-list {
  display: grid;
  gap: 12px;
}
.recent-item,
.code-item {
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.05);
}
.recent-item strong,
.code-item strong { color: var(--text); }
.recent-item p,
.code-item p { margin: 6px 0 0; }
.code-topline {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}
.code-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}
.code-meta span,
.code-badge {
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}
.code-badge.available { color: var(--accent); }
.code-badge.assigned { color: var(--warning); }
.code-badge.used { color: var(--accent-2); }
.code-badge.disabled { color: #fecaca; }
.code-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}
.btn.btn-ghost {
  background: rgba(255,255,255,0.04);
  color: var(--text);
}
.admin-empty {
  padding: 20px;
  border: 1px dashed var(--line);
  border-radius: 18px;
  color: var(--muted);
  text-align: center;
}

@media (max-width: 880px) {
  .admin-grid.two, .admin-form-grid { grid-template-columns: 1fr; }
  .admin-panel-head, .code-topline { flex-direction: column; align-items: flex-start; }
}