:root {
  --bg: #070b16;
  --panel: #101827;
  --panel-2: #151f33;
  --line: rgba(255,255,255,.10);
  --text: #eef4ff;
  --muted: #91a1ba;
  --blue: #35a7ff;
  --violet: #8b5cf6;
  --green: #4ade80;
  --red: #fb7185;
  --yellow: #facc15;
  --radius: 8px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  color: var(--text);
  background: radial-gradient(circle at 20% 0%, rgba(53,167,255,.20), transparent 32%),
              radial-gradient(circle at 80% 10%, rgba(139,92,246,.22), transparent 30%),
              var(--bg);
  font-family: Arial, "Microsoft YaHei", sans-serif;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px min(6vw, 72px);
  background: rgba(7,11,22,.82);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 22px; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--blue), var(--violet));
  color: #fff;
}
.nav { display: flex; align-items: center; gap: 20px; color: #d7e4ff; }
.nav a { color: #d7e4ff; }
.nav-pill, .btn.primary { background: linear-gradient(135deg, var(--blue), var(--violet)); color: #fff; }
.nav-pill { padding: 9px 16px; border-radius: 8px; }
.nav-toggle { display: none; }
.hero { padding: 82px min(6vw, 72px) 36px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(320px, .92fr); gap: 40px; align-items: center; }
.eyebrow { color: #85d7ff; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; font-size: 13px; }
h1 { font-size: clamp(36px, 6vw, 72px); line-height: 1.05; margin: 14px 0 18px; letter-spacing: 0; }
h2 { font-size: 32px; margin: 0 0 18px; }
h3 { margin: 0 0 10px; }
p { color: var(--muted); margin: 0 0 14px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 28px 0; }
.btn, button.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  background: rgba(255,255,255,.06);
  cursor: pointer;
  font: inherit;
}
.btn.small { min-height: 34px; padding: 7px 11px; font-size: 14px; }
.btn.danger { background: rgba(251,113,133,.12); color: #fecdd3; border-color: rgba(251,113,133,.35); }
.hero-panel, .card, .auth-card, .table-wrap, .admin-card {
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.035));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 20px 70px rgba(0,0,0,.24);
}
.hero-panel { padding: 26px; }
.proxy-preview { display: grid; gap: 12px; }
.proxy-line { display: flex; justify-content: space-between; gap: 16px; padding: 14px; border-radius: 8px; background: rgba(5,10,24,.75); border: 1px solid var(--line); }
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 18px; }
.stat { padding: 14px; border-radius: 8px; background: rgba(53,167,255,.10); }
.stat strong { display: block; font-size: 24px; }
.section { padding: 42px min(6vw, 72px); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 22px; }
.grid { display: grid; gap: 18px; }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card, .admin-card { padding: 22px; }
.product-card { display: flex; flex-direction: column; min-height: 260px; }
.product-card .price { font-size: 30px; font-weight: 800; margin: 12px 0; }
.product-card .actions { margin-top: auto; display: flex; gap: 10px; flex-wrap: wrap; }
.badge { display: inline-flex; align-items: center; width: fit-content; min-height: 26px; padding: 3px 9px; border-radius: 8px; background: rgba(53,167,255,.14); color: #9bd8ff; font-size: 13px; }
.badge.warn { background: rgba(250,204,21,.14); color: #fde68a; }
.badge.good { background: rgba(74,222,128,.14); color: #bbf7d0; }
.countries { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; }
.country { padding: 16px; border-radius: 8px; border: 1px solid var(--line); background: rgba(255,255,255,.05); }
.country strong { display: block; }
.faq details { padding: 16px 0; border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-weight: 700; }
.footer { display: flex; justify-content: space-between; gap: 20px; padding: 34px min(6vw, 72px); border-top: 1px solid var(--line); background: rgba(0,0,0,.25); }
.flash { margin: 16px min(6vw, 72px); padding: 12px 14px; border-radius: 8px; border: 1px solid var(--line); }
.flash.error { background: rgba(251,113,133,.12); color: #fecdd3; }
.flash.success { background: rgba(74,222,128,.12); color: #bbf7d0; }
.auth-wrap { min-height: 70vh; display: grid; place-items: center; padding: 36px 18px; }
.auth-card { width: min(440px, 100%); padding: 28px; }
.form-grid { display: grid; gap: 14px; }
label { display: grid; gap: 7px; color: #d7e4ff; font-weight: 700; }
input, select, textarea {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(4,8,18,.82);
  color: var(--text);
  font: inherit;
}
textarea { min-height: 110px; resize: vertical; }
.client-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 22px; padding: 34px min(6vw, 72px); }
.client-menu, .admin-sidebar { background: rgba(7,11,22,.72); border: 1px solid var(--line); border-radius: 8px; padding: 16px; }
.client-menu a, .admin-sidebar a { display: block; padding: 10px 12px; border-radius: 8px; color: #d7e4ff; }
.client-menu a:hover, .admin-sidebar a:hover { background: rgba(255,255,255,.07); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td { padding: 12px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: #a9c8ff; font-size: 14px; }
.admin-body { display: grid; grid-template-columns: 260px minmax(0, 1fr); min-height: 100vh; background: #07101d; }
.admin-sidebar { position: sticky; top: 0; height: 100vh; border-radius: 0; border-top: 0; border-bottom: 0; }
.admin-sidebar nav { margin-top: 24px; display: grid; gap: 6px; }
.admin-main { padding: 24px; }
.admin-topbar { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.admin-topbar h1 { font-size: 28px; margin: 0; }
.admin-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.admin-card strong { display: block; font-size: 28px; margin-top: 8px; }
.actions-inline { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.muted { color: var(--muted); }
.code { font-family: Consolas, monospace; word-break: break-all; }
@media (max-width: 900px) {
  .hero-grid, .client-layout, .admin-body { grid-template-columns: 1fr; }
  .grid.cols-3, .grid.cols-4, .countries, .admin-grid { grid-template-columns: 1fr 1fr; }
  .admin-sidebar { position: static; height: auto; }
}
@media (max-width: 640px) {
  .site-header { align-items: flex-start; }
  .nav-toggle { display: inline-flex; padding: 8px 10px; border-radius: 8px; border: 1px solid var(--line); background: rgba(255,255,255,.06); color: var(--text); }
  .nav { display: none; position: absolute; left: 18px; right: 18px; top: 70px; padding: 14px; border: 1px solid var(--line); border-radius: 8px; background: #0a1222; flex-direction: column; align-items: stretch; }
  .nav.open { display: flex; }
  .grid.cols-3, .grid.cols-4, .countries, .stat-row, .admin-grid { grid-template-columns: 1fr; }
  .footer, .section-head { display: block; }
  h1 { font-size: 38px; }
}