:root {
  --navy: #091831;
  --blue: #1267e8;
  --blue-dark: #0b4fb7;
  --green: #1eaa6f;
  --red: #da4856;
  --orange: #e98c16;
  --text: #17233a;
  --muted: #6c7890;
  --bg: #f3f6fb;
  --panel: #fff;
  --panel-2: #f8faff;
  --line: #dfe6f0;
  --shadow: 0 15px 42px rgba(14, 36, 70, .10);
}
* { box-sizing: border-box; }
body { margin: 0; color: var(--text); background: var(--bg); font: 13px/1.55 Inter, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif; -webkit-font-smoothing: antialiased; }
button, input, select, textarea { font: inherit; color: inherit; }
button, select { cursor: pointer; }
a { color: inherit; }
[hidden] { display: none !important; }
.admin-shell { min-height: 100vh; }
.admin-header { height: 64px; padding: 0 max(20px, calc((100vw - 1120px) / 2)); display: flex; align-items: center; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.94); backdrop-filter: blur(12px); }
.brand-link { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-mark { width: 35px; height: 35px; border-radius: 11px; display: grid; place-items: center; color: #fff; background: linear-gradient(145deg, #1975ee, #0947aa); font-size: 20px; font-weight: 800; box-shadow: 0 7px 18px rgba(10,74,172,.23); }
.brand-link b { display: block; font-size: 12px; letter-spacing: .09em; }
.brand-link small { display: block; color: #8794aa; font-size: 8px; letter-spacing: .12em; }
.back-link { margin-left: auto; color: var(--muted); text-decoration: none; font-size: 11px; }
main { width: min(1120px, calc(100% - 28px)); margin: 0 auto; padding: 30px 0 55px; }
.card { border: 1px solid var(--line); border-radius: 15px; background: var(--panel); box-shadow: 0 5px 18px rgba(20,42,75,.04); }
.login-card { width: min(460px, 100%); margin: 7vh auto 0; padding: 31px; text-align: center; box-shadow: var(--shadow); }
.login-symbol { width: 58px; height: 58px; margin: 0 auto 15px; border-radius: 17px; display: grid; place-items: center; color: #fff; background: linear-gradient(145deg, #1975ed, #0b4fb7); font-size: 13px; font-weight: 800; letter-spacing: .08em; }
.eyebrow { margin: 0 0 5px; color: var(--blue); font-size: 8px; font-weight: 800; letter-spacing: .16em; }
h1, h2, p { margin-top: 0; }
.login-card h1 { margin-bottom: 8px; font-size: 24px; }
.lead { color: var(--muted); font-size: 11px; line-height: 1.75; }
.login-card form { margin-top: 21px; }
label { color: #44516a; font-size: 10px; font-weight: 600; text-align: left; }
input, select, textarea { width: 100%; border: 1px solid var(--line); border-radius: 9px; outline: 0; background: #fff; }
input, select { height: 37px; padding: 0 10px; }
textarea { padding: 9px 10px; resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: #8db8ee; box-shadow: 0 0 0 3px rgba(18,103,232,.08); }
.login-card label input { margin-top: 6px; }
button { border: 0; border-radius: 9px; }
.primary { color: #fff; background: linear-gradient(145deg, #1873e9, #0d56bd); box-shadow: 0 7px 18px rgba(18,103,232,.17); }
.secondary { color: #45536b; background: #eef2f7; }
.wide { width: 100%; height: 39px; margin-top: 11px; }
.notice, .global-notice { min-height: 0; margin-top: 10px; border-radius: 9px; font-size: 10px; }
.notice:not(:empty), .global-notice:not(:empty) { padding: 8px 10px; }
.notice.error, .global-notice.error { color: #a62e3b; background: #fff0f2; border: 1px solid #f4c8ce; }
.notice.success, .global-notice.success { color: #176c48; background: #ebfaf3; border: 1px solid #c6ebda; }
.login-help { margin-top: 18px; padding: 11px; border-radius: 10px; color: var(--muted); background: var(--panel-2); text-align: left; font-size: 9px; }
.login-help b, .login-help span { display: block; }
.login-help span { margin-top: 3px; }
code { padding: 2px 5px; border-radius: 5px; color: #c13a4b; background: #f6edf0; font-family: Consolas, monospace; font-size: 9px; }
.page-title { margin-bottom: 19px; display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; }
.page-title h1 { margin-bottom: 4px; font-size: 27px; letter-spacing: -.03em; }
.page-title p:last-child { margin: 0; color: var(--muted); font-size: 11px; }
.title-actions { display: flex; gap: 8px; }
.title-actions button { height: 37px; padding: 0 14px; }
.summary-grid { margin-bottom: 14px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.summary-card { min-height: 93px; padding: 15px; border: 1px solid var(--line); border-radius: 13px; background: linear-gradient(145deg, #fff, #f8fbff); box-shadow: 0 4px 14px rgba(20,42,75,.04); }
.summary-card span, .summary-card small { display: block; color: var(--muted); font-size: 9px; }
.summary-card b { display: block; margin: 7px 0 3px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 16px; }
.tabbar { margin-bottom: 14px; padding: 4px; display: inline-flex; gap: 3px; border: 1px solid var(--line); border-radius: 11px; background: #fff; }
.tabbar button { min-width: 110px; height: 32px; padding: 0 12px; color: var(--muted); background: transparent; font-size: 10px; }
.tabbar button.active { color: #fff; background: var(--navy); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }
.global-notice { margin: 0 0 11px; }
.overview { margin-bottom: 11px; padding: 13px; display: grid; grid-template-columns: 220px 1fr auto; align-items: center; gap: 16px; }
.overview label select { margin-top: 5px; }
.security-copy b, .security-copy span { display: block; }
.security-copy b { font-size: 11px; }
.security-copy span { margin-top: 3px; color: var(--muted); font-size: 9px; }
.add-btn { height: 36px; padding: 0 13px; color: var(--blue); background: #eaf3ff; font-size: 10px; font-weight: 700; }
.providers { display: grid; gap: 11px; }
.provider-card { padding: 16px; }
.provider-head { display: flex; align-items: center; gap: 11px; margin-bottom: 13px; }
.provider-number { flex: 0 0 34px; width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; color: #fff; background: var(--navy); font-size: 11px; font-weight: 800; }
.provider-title { min-width: 0; flex: 1; }
.provider-title h2 { margin: 0; font-size: 14px; }
.provider-title p { margin: 2px 0 0; color: var(--muted); font-size: 9px; }
.switch { display: flex; align-items: center; gap: 6px; }
.switch input { display: none; }
.switch span { position: relative; width: 34px; height: 19px; border-radius: 999px; background: #c9d1dc; }
.switch span::after { content: ''; position: absolute; top: 3px; left: 3px; width: 13px; height: 13px; border-radius: 50%; background: #fff; transition: .16s; }
.switch input:checked + span { background: var(--green); }
.switch input:checked + span::after { left: 18px; }
.switch em { color: var(--muted); font-size: 9px; font-style: normal; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 11px; }
.form-grid label { display: block; }
.form-grid label > input, .form-grid label > select, .form-grid label > textarea, .key-row, .model-row { margin-top: 5px; }
.span-2 { grid-column: 1 / -1; }
.key-row, .model-row { display: flex; gap: 6px; }
.key-row input, .model-row input { flex: 1; }
.mini { flex: 0 0 auto; height: 37px; padding: 0 10px; color: #52627b; background: #edf2f8; font-size: 9px; }
.form-grid small { display: block; margin-top: 4px; color: var(--muted); font-size: 8px; }
.check-line { min-height: 37px; display: flex !important; align-items: center; gap: 7px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 9px; background: var(--panel-2); }
.check-line input { width: 15px; height: 15px; margin: 0; accent-color: var(--blue); }
.provider-actions { margin-top: 13px; padding-top: 12px; border-top: 1px solid var(--line); display: flex; align-items: center; gap: 7px; }
.provider-actions button { height: 33px; padding: 0 11px; font-size: 9px; }
.test-btn { color: #fff; background: var(--blue); }
.remove-btn { color: var(--red); background: #fff0f2; }
.test-result { margin-left: 4px; color: var(--muted); font-size: 9px; }
.test-result.success { color: var(--green); }
.test-result.error { color: var(--red); }
.help { margin-top: 11px; padding: 16px; }
.help h2, .site-card h2, .diagnostic-card h2 { margin-bottom: 9px; font-size: 14px; }
.help-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 8px; }
.help-grid div { padding: 10px; border-radius: 9px; background: var(--panel-2); }
.help-grid b, .help-grid code { display: block; }
.help-grid b { margin-bottom: 5px; font-size: 9px; }
.help p { margin: 11px 0 0; color: var(--muted); font-size: 9px; }
.site-card, .diagnostic-card { margin-bottom: 11px; padding: 17px; }
.section-head { margin-bottom: 13px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.section-head h2 { margin: 0; }
.section-head p { margin: 2px 0 0; color: var(--muted); font-size: 9px; }
.section-head button { height: 33px; padding: 0 11px; }
.site-grid { gap: 13px; }
.diagnostic-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 8px; }
.diagnostic-item { padding: 11px; border: 1px solid var(--line); border-radius: 10px; background: var(--panel-2); }
.diagnostic-item span, .diagnostic-item b { display: block; }
.diagnostic-item span { color: var(--muted); font-size: 8px; }
.diagnostic-item b { margin-top: 4px; overflow-wrap: anywhere; font-size: 10px; }
.diagnostic-item.good b { color: var(--green); }
.diagnostic-item.bad b { color: var(--red); }
.loading { color: var(--muted); font-size: 10px; }
.fault-list { display: grid; gap: 7px; }
.fault-list div { padding: 9px 11px; border-radius: 9px; display: grid; grid-template-columns: 100px 1fr; background: var(--panel-2); }
.fault-list b { font-size: 10px; }
.fault-list span { color: var(--muted); font-size: 9px; }
@media (max-width: 800px) {
  .page-title { align-items: flex-start; flex-direction: column; }
  .summary-grid { grid-template-columns: 1fr; }
  .overview { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .span-2 { grid-column: auto; }
  .help-grid, .diagnostic-grid { grid-template-columns: 1fr 1fr; }
  .tabbar { width: 100%; overflow-x: auto; }
  .tabbar button { flex: 1; min-width: 105px; }
}
@media (max-width: 520px) {
  main { width: min(100% - 18px, 1120px); padding-top: 18px; }
  .admin-header { padding: 0 10px; }
  .brand-link small { display: none; }
  .login-card { padding: 22px 17px; }
  .help-grid, .diagnostic-grid { grid-template-columns: 1fr; }
  .title-actions { width: 100%; }
  .title-actions button { flex: 1; }
  .fault-list div { grid-template-columns: 1fr; gap: 3px; }
}