:root {
  --bg: #05060a;
  --panel: #0d1017;
  --line: #1c2130;
  --fg: #e8ecf3;
  --dim: #8a8f98;
  --accent: #5b8cff;
  --accent2: #22d3a6;
  --danger: #ff6b6b;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: radial-gradient(1200px 600px at 50% -10%, #131a2b 0%, var(--bg) 55%);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100%;
}
.wrap {
  flex: 1;
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  padding: 56px 20px 24px;
}
.brand { text-align: center; margin-bottom: 28px; }
.brand .dot {
  display: block; width: 42px; height: 42px; margin: 0 auto 14px;
  filter: drop-shadow(0 8px 22px rgba(91,140,255,.32));
}
.brand h1 { font-size: 20px; margin: 0 0 6px; letter-spacing: .3px; }
.brand p { margin: 0; color: var(--dim); font-size: 13px; }

.card {
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 24px 22px;
  backdrop-filter: blur(8px);
}
label { display: block; font-size: 13px; color: var(--dim); margin: 0 0 7px; }
.field { margin-bottom: 16px; }
input[type=text], input[type=password], input[type=email] {
  width: 100%;
  padding: 12px 13px;
  background: #080a10;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--fg);
  font-size: 15px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(91,140,255,.15); }
button {
  width: 100%;
  padding: 12px;
  margin-top: 6px;
  border: 0;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #7aa2ff);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform .1s, filter .15s;
}
button:hover { filter: brightness(1.08); }
button:active { transform: translateY(1px); }
button:disabled { opacity: .55; cursor: default; }
.hint { font-size: 12px; color: var(--dim); margin-top: 8px; line-height: 1.6; }
.msg {
  margin: 0 0 14px;
  padding: 10px 12px;
  border-radius: 9px;
  font-size: 13px;
  display: none;
  line-height: 1.5;
}
.msg.err { display: block; background: rgba(255,107,107,.1); border: 1px solid rgba(255,107,107,.35); color: #ffb3b3; }
.msg.ok { display: block; background: rgba(34,211,166,.1); border: 1px solid rgba(34,211,166,.35); color: #8ef0d2; }
.foot { text-align: center; font-size: 12px; color: #6a707a; padding: 18px 12px 22px; }
.foot a { color: #6a707a; text-decoration: none; }
.foot a:hover { color: var(--dim); }
.foot .sep { margin: 0 8px; opacity: .5; }

/* 用户中心 */
.row { display: flex; justify-content: space-between; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.row:last-of-type { border-bottom: 0; }
.row .k { color: var(--dim); }
.row .v { color: var(--fg); text-align: right; word-break: break-all; }
.btn-ghost {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--dim);
  margin-top: 18px;
}
.btn-ghost:hover { border-color: var(--danger); color: var(--danger); filter: none; }