/* ========== DBHAO 卡密系统 · 科技风样式 ========== */
:root {
  --bg: #05070f;
  --bg-2: #0a1020;
  --panel: rgba(13, 22, 40, .72);
  --panel-line: rgba(56, 189, 248, .16);
  --cyan: #22d3ee;
  --cyan-dim: rgba(34, 211, 238, .12);
  --purple: #a855f7;
  --text: #e6edf7;
  --muted: #8296b0;
  --ok: #34d399;
  --warn: #fbbf24;
  --err: #f87171;
  --mono: "SFMono-Regular", "JetBrains Mono", Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  min-height: 100%;
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.6;
  background:
    radial-gradient(1100px 620px at 8% -12%, rgba(34, 211, 238, .16), transparent 60%),
    radial-gradient(900px 560px at 108% 4%, rgba(168, 85, 247, .18), transparent 62%),
    linear-gradient(180deg, #05070f 0%, #060a14 100%);
  background-attachment: fixed;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(56, 189, 248, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(56, 189, 248, .055) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at 50% 30%, #000 30%, transparent 82%);
  -webkit-mask-image: radial-gradient(circle at 50% 30%, #000 30%, transparent 82%);
}

.wrap { position: relative; width: 100%; max-width: 1120px; margin: 0 auto; padding: 26px 18px 64px; }
.wrap.narrow { max-width: 780px; }

/* ---------- 顶部 ---------- */
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.brand .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 14px var(--cyan); }
.brand small { color: var(--muted); font-weight: 400; letter-spacing: .04em; text-transform: none; }

.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }
.nav { display: flex; gap: 8px; flex-wrap: wrap; }
.nav a {
  padding: 7px 14px; border-radius: 999px; font-size: 13px;
  color: var(--muted); text-decoration: none;
  border: 1px solid transparent; transition: .18s;
}
.nav a:hover { color: var(--text); border-color: var(--panel-line); background: rgba(56, 189, 248, .06); }
.nav a.active { color: #041018; background: linear-gradient(135deg, var(--cyan), #6ee7ff); font-weight: 600; box-shadow: 0 0 22px rgba(34, 211, 238, .35); }

/* ---------- 面板 ---------- */
.card {
  position: relative; background: var(--panel); border: 1px solid var(--panel-line);
  border-radius: 16px; padding: 20px 20px; backdrop-filter: blur(14px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, .45), inset 0 1px 0 rgba(255, 255, 255, .04);
  margin-bottom: 18px;
}
.card::after {
  content: ""; position: absolute; left: 18px; right: 18px; top: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(34, 211, 238, .55), transparent);
}
.card h2 { margin: 0 0 14px; font-size: 15px; letter-spacing: .06em; color: #cfe9ff; font-weight: 600; }
.card h2 span { color: var(--muted); font-weight: 400; font-size: 12px; letter-spacing: 0; margin-left: 8px; }

.muted { color: var(--muted); }
.center { text-align: center; }
.mono { font-family: var(--mono); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 11px 22px; border-radius: 10px; border: 1px solid transparent;
  background: linear-gradient(135deg, var(--cyan), #3b82f6);
  color: #041018; font-size: 14px; font-weight: 700; letter-spacing: .02em;
  cursor: pointer; text-decoration: none; transition: .18s;
  box-shadow: 0 8px 26px rgba(34, 211, 238, .28);
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 12px 32px rgba(34, 211, 238, .4); }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; box-shadow: none; }
.btn.ghost {
  background: rgba(255, 255, 255, .04); color: var(--text);
  border-color: var(--panel-line); box-shadow: none; font-weight: 500;
}
.btn.ghost:hover { border-color: rgba(34, 211, 238, .5); color: #fff; }
.btn.danger { background: linear-gradient(135deg, #f87171, #ef4444); color: #fff; box-shadow: 0 8px 24px rgba(239, 68, 68, .3); }
.btn.sm { padding: 7px 14px; font-size: 13px; border-radius: 8px; }
.btn.block { width: 100%; }

/* ---------- 表单 ---------- */
.field { margin-bottom: 14px; }
.field label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 6px; letter-spacing: .04em; }
input[type=text], input[type=password], input[type=number], select, textarea {
  width: 100%; padding: 10px 13px; border-radius: 10px;
  background: rgba(6, 12, 24, .82); color: var(--text);
  border: 1px solid var(--panel-line); outline: none; font-size: 14px;
  font-family: inherit; transition: .16s;
}
input:focus, select:focus, textarea:focus { border-color: rgba(34, 211, 238, .55); box-shadow: 0 0 0 3px rgba(34, 211, 238, .1); }
textarea { min-height: 120px; resize: vertical; font-family: var(--mono); font-size: 13px; line-height: 1.7; }
select { cursor: pointer; }
.radio-row { display: flex; gap: 10px; flex-wrap: wrap; }
.radio-row label {
  flex: 1 1 auto; min-width: 110px; text-align: center; padding: 10px 14px; border-radius: 10px;
  border: 1px solid var(--panel-line); background: rgba(255, 255, 255, .02);
  cursor: pointer; color: var(--muted); font-size: 13px; transition: .16s;
}
.radio-row label:hover { border-color: rgba(34, 211, 238, .4); }
.radio-row input { display: none; }
.radio-row input:checked + span { color: var(--cyan); font-weight: 700; }
.radio-row label.checked { border-color: rgba(34, 211, 238, .6); background: rgba(34, 211, 238, .1); box-shadow: 0 0 0 1px rgba(34, 211, 238, .25) inset; }

/* ---------- 表格 ---------- */
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { padding: 10px 10px; text-align: left; border-bottom: 1px solid rgba(56, 189, 248, .1); vertical-align: middle; }
th { color: var(--muted); font-weight: 500; font-size: 12px; letter-spacing: .04em; white-space: nowrap; }
tr:hover td { background: rgba(56, 189, 248, .04); }
.table-wrap { overflow-x: auto; }

/* ---------- 徽标 / 标签 ---------- */
.badge { display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px; line-height: 1.7; border: 1px solid transparent; white-space: nowrap; }
.badge.gray { color: var(--muted); border-color: rgba(130, 150, 176, .35); background: rgba(130, 150, 176, .08); }
.badge.cyan { color: var(--cyan); border-color: rgba(34, 211, 238, .4); background: rgba(34, 211, 238, .1); }
.badge.green { color: var(--ok); border-color: rgba(52, 211, 153, .4); background: rgba(52, 211, 153, .1); }
.badge.red { color: var(--err); border-color: rgba(248, 113, 113, .4); background: rgba(248, 113, 113, .1); }
.badge.purple { color: var(--purple); border-color: rgba(168, 85, 247, .4); background: rgba(168, 85, 247, .1); }

/* ---------- 统计块 ---------- */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; }
.stat { padding: 14px 16px; border-radius: 12px; border: 1px solid var(--panel-line); background: rgba(8, 14, 26, .66); }
.stat b { display: block; font-family: var(--mono); font-size: 24px; line-height: 1.25; color: #d9f6ff; }
.stat span { font-size: 12px; color: var(--muted); }

/* ---------- 消息 ---------- */
.flash { padding: 11px 14px; border-radius: 10px; margin-bottom: 14px; font-size: 13px; border: 1px solid; }
.flash.ok { color: #a7f3d0; border-color: rgba(52, 211, 153, .4); background: rgba(52, 211, 153, .1); }
.flash.err { color: #fecaca; border-color: rgba(248, 113, 113, .4); background: rgba(248, 113, 113, .1); }
.flash.info { color: #bae6fd; border-color: rgba(34, 211, 238, .4); background: rgba(34, 211, 238, .09); }

/* ---------- 分页 ---------- */
.pager { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-top: 14px; font-size: 13px; }
.pager a, .pager span.cur {
  min-width: 34px; text-align: center; padding: 6px 10px; border-radius: 8px;
  border: 1px solid var(--panel-line); color: var(--muted); text-decoration: none; transition: .16s;
}
.pager a:hover { color: var(--text); border-color: rgba(34, 211, 238, .45); }
.pager span.cur { color: #041018; background: linear-gradient(135deg, var(--cyan), #6ee7ff); border-color: transparent; font-weight: 700; }
.pager .sp { flex: 1; }
.pager form { display: flex; gap: 6px; align-items: center; }
.pager select { width: auto; padding: 6px 8px; font-size: 13px; }

/* ---------- 卡密使用页 ---------- */
.hero { text-align: center; padding: 8px 0 2px; }
.hero .type { display: inline-block; padding: 5px 16px; border-radius: 999px; font-size: 13px; letter-spacing: .08em;
  color: var(--cyan); border: 1px solid rgba(34, 211, 238, .45); background: rgba(34, 211, 238, .08); }
.hero h1 { margin: 14px 0 6px; font-size: 26px; letter-spacing: .02em; }
.hero p { margin: 0; color: var(--muted); font-size: 13px; }

.phone-box { margin: 18px auto 0; max-width: 460px; padding: 18px; border-radius: 14px;
  border: 1px dashed rgba(34, 211, 238, .45); background: rgba(34, 211, 238, .05); }
.phone-box .label { font-size: 12px; color: var(--muted); letter-spacing: .1em; }
.phone-box .num { font-family: var(--mono); font-size: 30px; letter-spacing: .14em; color: #e9fbff;
  text-shadow: 0 0 22px rgba(34, 211, 238, .45); word-break: break-all; margin: 4px 0 10px; }

.steps { counter-reset: s; margin: 8px auto 0; max-width: 460px; text-align: left; padding: 0; list-style: none; }
.steps li { counter-increment: s; position: relative; padding: 5px 0 5px 30px; color: var(--muted); font-size: 13px; }
.steps li::before {
  content: counter(s); position: absolute; left: 0; top: 5px; width: 20px; height: 20px; line-height: 20px;
  text-align: center; border-radius: 50%; font-size: 12px; font-family: var(--mono);
  color: var(--cyan); border: 1px solid rgba(34, 211, 238, .45);
}
.steps li.on { color: var(--text); }

.result-box { margin-top: 18px; display: none; }
.result-box.show { display: block; animation: pop .22s ease-out; }
@keyframes pop { from { transform: translateY(6px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.code-big { font-family: var(--mono); font-size: 40px; letter-spacing: .22em; color: var(--cyan);
  text-shadow: 0 0 26px rgba(34, 211, 238, .6); text-align: center; padding: 8px 0 4px; }
.msg { text-align: center; font-size: 13px; color: var(--muted); min-height: 22px; }
.msg.err { color: var(--err); }
.msg.ok { color: var(--ok); }

.countdown { font-family: var(--mono); font-size: 15px; color: var(--warn); letter-spacing: .06em; }
.expired-note { padding: 16px; border-radius: 12px; border: 1px solid rgba(248, 113, 113, .4); background: rgba(248, 113, 113, .1); color: #fecaca; text-align: center; }

/* ---------- 底部 ---------- */
.foot { text-align: center; color: rgba(130, 150, 176, .6); font-size: 12px; margin-top: 26px; }

@media (max-width: 640px) {
  .wrap { padding: 16px 12px 48px; }
  .card { padding: 16px; border-radius: 14px; }
  .hero h1 { font-size: 20px; }
  .phone-box .num { font-size: 24px; letter-spacing: .1em; }
  .code-big { font-size: 32px; letter-spacing: .16em; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  th, td { padding: 8px 8px; }
}