:root {
  --bg: #0e1016;
  --card: #181b24;
  --card2: #1f2330;
  --line: #2a2f3d;
  --text: #e6e8ef;
  --muted: #8b90a0;
  --accent: #7c5cff;
  --accent2: #5b8cff;
  --ok: #2ecc71;
  --warn: #f1c40f;
  --err: #ff5c6c;
  --radius: 14px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: radial-gradient(1200px 600px at 20% -10%, #1b2140 0%, var(--bg) 55%);
  color: var(--text);
  min-height: 100vh;
}
.wrap { max-width: 1080px; margin: 0 auto; padding: 32px 18px 60px; }
.hidden { display: none !important; }
.muted { color: var(--muted); font-size: 13px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }

/* 登录 */
.login-card { max-width: 420px; margin: 8vh auto 0; text-align: center; }
.logo { font-size: 46px; }
.login-card h1 { margin: 8px 0 4px; font-size: 26px; }
.login-card .sub { color: var(--muted); margin: 0 0 22px; }
#queryForm { display: flex; flex-direction: column; gap: 12px; }
input, select, textarea {
  width: 100%; padding: 12px 14px; background: var(--card2); border: 1px solid var(--line);
  border-radius: 10px; color: var(--text); font-size: 15px; outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--accent); }
button {
  cursor: pointer; border: none; border-radius: 10px; font-size: 15px; font-weight: 600;
  padding: 12px 16px; color: #fff; background: linear-gradient(135deg, var(--accent), var(--accent2));
  transition: transform .05s, opacity .2s;
}
button:hover { opacity: .92; }
button:active { transform: translateY(1px); }
button:disabled { opacity: .6; cursor: default; }
button.ghost { background: transparent; border: 1px solid var(--line); color: var(--muted); }
button.mini { padding: 7px 12px; font-size: 13px; font-weight: 500; background: var(--card2); border: 1px solid var(--line); color: var(--text); }
button.mini:hover { border-color: var(--accent); }
.error { color: var(--err); font-size: 13px; min-height: 18px; margin-top: 10px; }
.tip { color: var(--muted); font-size: 12px; margin-top: 16px; }

/* 仪表盘 */
.dash-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }
.dash-head h2 { margin: 0 0 2px; font-size: 22px; }

.sub-card { margin-bottom: 22px; }
.sub-card h3 { margin: 0 0 4px; }
.import-btns { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; margin: 14px 0; }
.import-btn {
  display: flex; flex-direction: column; align-items: flex-start; gap: 3px;
  background: var(--card2); border: 1px solid var(--line); color: var(--text); text-align: left;
}
.import-btn:hover { border-color: var(--accent); background: #232838; }
.ib-label { font-size: 14px; font-weight: 600; }
.ib-hint { font-size: 11px; color: var(--muted); font-weight: 400; }
.sub-url-row, .qr-link { display: flex; gap: 8px; margin-top: 6px; }
.sub-url-row input, .qr-link input { font-size: 13px; color: var(--muted); }
.sub-meta { margin-top: 10px; font-size: 12px; color: var(--warn); }

/* 节点网格 */
.node-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.node-card { display: flex; flex-direction: column; gap: 14px; }
.node-top { display: flex; align-items: center; gap: 10px; }
.proto { font-size: 11px; font-weight: 700; padding: 3px 8px; border-radius: 6px; color: #fff; letter-spacing: .5px; }
.node-name { font-weight: 600; font-size: 16px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.node-info { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 12px; }
.node-info > div { display: flex; flex-direction: column; gap: 2px; }
.node-info span { font-size: 11px; color: var(--muted); }
.node-info b { font-size: 14px; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.node-info b.ok { color: var(--ok); }
.node-info b.warn { color: var(--warn); }
.node-info b.expired { color: var(--err); }
.node-actions { display: flex; gap: 8px; margin-top: auto; }
.node-actions .mini { flex: 1; }
.empty { grid-column: 1/-1; text-align: center; color: var(--muted); padding: 40px; }

/* 弹窗 */
.modal { position: fixed; inset: 0; background: rgba(0,0,0,.6); display: flex; align-items: center; justify-content: center; z-index: 100; padding: 16px; }
.modal-box { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; width: 320px; max-width: 100%; }
.modal-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; font-weight: 600; }
.close { background: none; padding: 0; width: 28px; height: 28px; color: var(--muted); }
#qrImg { width: 100%; background: #fff; border-radius: 10px; display: block; }
.qr-link { margin-top: 12px; }
.qr-link input { font-size: 12px; }

/* toast */
.toast { position: fixed; bottom: 32px; left: 50%; transform: translateX(-50%); background: #000; color: #fff; padding: 10px 20px; border-radius: 20px; font-size: 14px; z-index: 200; }

@media (max-width: 560px) {
  .import-btns { grid-template-columns: 1fr 1fr; }
}