:root {
  --bg: #0b0f17;
  --bg-soft: #111827;
  --card: #151c2c;
  --card-2: #1a2338;
  --line: #26304a;
  --text: #e5eaf5;
  --muted: #8b95ad;
  --brand: #6d8dff;
  --brand-2: #8a6dff;
  --ok: #34d399;
  --warn: #fbbf24;
  --err: #f87171;
  --radius: 12px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(109, 141, 255, .12), transparent 60%),
    radial-gradient(900px 400px at 10% -10%, rgba(138, 109, 255, .10), transparent 60%),
    var(--bg);
  color: var(--text);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  min-height: 100vh;
  display: flex; flex-direction: column;
}
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: .92em; background: var(--card-2); padding: 2px 6px; border-radius: 6px;
  word-break: break-all;
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; width: 100%; }
.main { flex: 1; padding-top: 24px; padding-bottom: 48px; }

/* 顶栏 */
.topbar {
  position: sticky; top: 0; z-index: 10;
  background: rgba(11, 15, 23, .82); backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.topbar-in { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 12px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 17px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand-dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 0 12px rgba(109, 141, 255, .8);
}
.nav { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.nav-link { color: var(--muted); padding: 6px 10px; border-radius: 8px; }
.nav-link:hover { color: var(--text); text-decoration: none; background: var(--card); }
.nav-link.active { color: var(--text); background: var(--card); }
.nav-user { color: var(--muted); margin: 0 4px; }

/* 卡片 */
.card {
  background: linear-gradient(180deg, var(--card), var(--bg-soft));
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 22px; margin-bottom: 18px;
}
.card h1 { margin: 0 0 18px; font-size: 22px; }
.card h2 { margin: 0 0 12px; font-size: 19px; }
.card h3 { margin: 0 0 10px; font-size: 16px; }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  border: 1px solid var(--line); background: var(--card-2); color: var(--text);
  padding: 9px 16px; border-radius: 10px; cursor: pointer; font-size: 14px;
  transition: filter .15s, transform .05s;
}
.btn:hover { filter: brightness(1.15); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  border-color: transparent; color: #fff; font-weight: 600;
}
.btn-ghost { background: transparent; }
.btn-danger { background: transparent; border-color: rgba(248, 113, 113, .4); color: var(--err); }
.btn-danger:hover { background: rgba(248, 113, 113, .1); }
.btn-sm { padding: 5px 10px; font-size: 13px; border-radius: 8px; }
.btn-lg { padding: 12px 24px; font-size: 16px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.inline-form { display: inline-flex; }

/* 表单 */
.field { display: block; margin-bottom: 14px; }
.field > span { display: block; margin-bottom: 6px; color: var(--muted); font-size: 13px; }
.field input, .field select {
  width: 100%; padding: 10px 12px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--bg-soft); color: var(--text);
  font-size: 15px; outline: none;
}
.field input:focus, .field select:focus { border-color: var(--brand); }
.field small { display: block; margin-top: 4px; color: var(--muted); font-size: 12px; }
.input-lg { font-size: 18px !important; letter-spacing: 1px; text-align: center; }
.field-sm input { width: 110px; }
.check { display: flex; align-items: center; gap: 8px; margin: 14px 0; color: var(--text); }
.check input { width: 18px; height: 18px; accent-color: var(--brand); }
.form-actions { display: flex; gap: 10px; margin-top: 8px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0 16px; }
.inline-fields { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.inline-fields .field { margin-bottom: 0; }

/* 首页 */
.hero { text-align: center; padding: 64px 0 40px; }
.hero h1 {
  font-size: 40px; margin: 0 0 14px; line-height: 1.2;
  background: linear-gradient(135deg, #fff, #93a8ff);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-sub { color: var(--muted); font-size: 17px; max-width: 560px; margin: 0 auto 28px; }
.hero-cta { display: flex; gap: 12px; justify-content: center; }
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.feature { text-align: center; }
.feature-icon { font-size: 30px; margin-bottom: 8px; }
.feature p { color: var(--muted); font-size: 14px; margin: 6px 0 0; }
.how-steps { margin: 0; padding-left: 20px; }
.how-steps li { margin-bottom: 12px; }
.how-steps b { display: block; }
.how-steps span { color: var(--muted); font-size: 14px; }

/* 认证 */
.auth-card { max-width: 400px; margin: 40px auto; }
.auth-alt { text-align: center; color: var(--muted); margin-bottom: 0; }
.tg-login { display: flex; justify-content: center; }
.divider { text-align: center; color: var(--muted); font-size: 13px; margin: 18px 0; position: relative; }
.divider::before {
  content: ""; position: absolute; left: 0; right: 0; top: 50%;
  height: 1px; background: var(--line);
}
.divider span { position: relative; background: var(--card); padding: 0 10px; }

/* 提示条 */
.flash {
  display: flex; gap: 10px; align-items: flex-start;
  border-radius: 10px; padding: 12px 16px; margin-bottom: 18px; font-size: 14px;
  border: 1px solid var(--line); word-break: break-all;
}
.flash-ok { border-color: rgba(52, 211, 153, .4); background: rgba(52, 211, 153, .08); }
.flash-err { border-color: rgba(248, 113, 113, .4); background: rgba(248, 113, 113, .08); }
.flash-info { border-color: rgba(109, 141, 255, .4); background: rgba(109, 141, 255, .08); }
.success-banner { text-align: center; border-color: rgba(52, 211, 153, .4); }
.success-banner h2 { margin-bottom: 4px; }
.success-banner p { color: var(--muted); margin: 0; }

/* 代理面板 */
.proxy-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; flex-wrap: wrap; }
.proxy-meta { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.chip {
  display: inline-flex; align-items: center; gap: 4px;
  background: var(--card-2); border: 1px solid var(--line); color: var(--muted);
  font-size: 12.5px; padding: 3px 10px; border-radius: 999px; white-space: nowrap;
}
.chip-ok { color: var(--ok); border-color: rgba(52, 211, 153, .4); }
.chip-err { color: var(--err); border-color: rgba(248, 113, 113, .4); }
.chip-warn { color: var(--warn); border-color: rgba(251, 191, 36, .4); }
.chip-link:hover { text-decoration: none; filter: brightness(1.2); }
.chip-on { color: var(--text); border-color: var(--brand); background: rgba(109, 141, 255, .12); }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }

.proxy-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
.proto-box { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.proto-tag {
  font-size: 12px; font-weight: 700; letter-spacing: .5px;
  padding: 3px 10px; border-radius: 6px; color: #fff;
}
.proto-tag.socks { background: linear-gradient(135deg, #2d9cdb, #56ccf2); }
.proto-tag.mt { background: linear-gradient(135deg, #219653, #6fcf97); }
.kv { width: 100%; border-collapse: collapse; margin: 12px 0; font-size: 14px; }
.kv th { text-align: left; color: var(--muted); font-weight: 500; width: 84px; padding: 6px 8px 6px 0; vertical-align: top; }
.kv td { padding: 6px 0; }
.btn-copy {
  background: none; border: none; color: var(--muted); cursor: pointer;
  margin-left: 6px; font-size: 13px; padding: 2px 4px; border-radius: 4px;
}
.btn-copy:hover { color: var(--text); background: var(--card-2); }
.btn-copy.copied { color: var(--ok); }
.secret-cell code { font-size: 12px; }
.proto-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.qr-box { display: flex; justify-content: center; background: #fff; border-radius: 10px; padding: 8px; width: 196px; margin: 0 auto; }
.qr-box img { display: block; }
.hint { color: var(--muted); font-size: 13px; }
.muted { color: var(--muted); }

/* 兑换表单 */
.redeem-main { max-width: 520px; margin: 30px auto; }
.redeem-details summary {
  cursor: pointer; color: var(--brand); font-weight: 600; padding: 10px 0;
}
.redeem-form { margin-top: 10px; }

/* 表格 */
.table-head { display: flex; justify-content: space-between; align-items: center; margin: 8px 0 14px; gap: 10px; flex-wrap: wrap; }
.table-head h2 { margin: 0; }
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th {
  text-align: left; color: var(--muted); font-weight: 500; font-size: 12.5px;
  padding: 8px 10px; border-bottom: 1px solid var(--line); white-space: nowrap;
}
.table td { padding: 10px; border-bottom: 1px solid rgba(38, 48, 74, .5); vertical-align: top; }
.table tr:last-child td { border-bottom: none; }
.actions { display: flex; gap: 6px; flex-wrap: wrap; }
.card-code { letter-spacing: 1px; }
.pager { display: flex; gap: 12px; align-items: center; justify-content: center; margin-top: 14px; color: var(--muted); }

/* 统计 */
.stat-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 12px; margin-bottom: 18px; }
.stat { text-align: center; padding: 16px 8px; margin-bottom: 0; }
.stat-n { font-size: 26px; font-weight: 700; }
.stat-n.ok { color: var(--ok); }
.stat-n.warn { color: var(--warn); }
.stat-l { color: var(--muted); font-size: 12.5px; margin-top: 2px; }
.chart { display: flex; align-items: flex-end; gap: 6px; height: 120px; padding-top: 10px; }
.bar-col { flex: 1; display: flex; flex-direction: column; align-items: center; height: 100%; justify-content: flex-end; }
.bar {
  width: 100%; max-width: 34px; border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, var(--brand), var(--brand-2)); min-height: 2px;
}
.bar-label { font-size: 10px; color: var(--muted); margin-top: 6px; white-space: nowrap; }
.quick-links { display: flex; gap: 10px; flex-wrap: wrap; }

.code-area {
  width: 100%; background: var(--bg-soft); color: var(--text);
  border: 1px solid var(--line); border-radius: 10px; padding: 12px;
  font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 14px;
  letter-spacing: 1px; margin-bottom: 12px; resize: vertical;
}

/* 页脚 */
.footer {
  border-top: 1px solid var(--line); color: var(--muted);
  font-size: 12.5px; padding: 18px 0; text-align: center;
}

.form-card { max-width: 720px; }

@media (max-width: 860px) {
  .features, .proxy-grid { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: repeat(3, 1fr); }
  .grid-2, .grid-4 { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
  .topbar-in { height: auto; padding: 10px 0; flex-direction: column; align-items: flex-start; }
}