/* 亦匿二级域名 · 站点样式
   风格：克制、技术感、无装饰性图形，适配移动端 */

:root {
  --bg: #f5f7fa;
  --surface: #ffffff;
  --surface-2: #fafbfc;
  --ink: #0f172a;
  --ink-2: #344054;
  --muted: #667085;
  --line: #e3e8ef;
  --line-strong: #cfd6e0;
  --brand: #1a56db;
  --brand-dark: #1442ad;
  --brand-soft: #eef3fe;
  --green: #0f8a5f;
  --green-soft: #e8f6ef;
  --amber: #b25e09;
  --amber-soft: #fdf3e7;
  --red: #c4301f;
  --red-soft: #fdecea;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .04);
  --shadow-lg: 0 12px 32px -12px rgba(16, 24, 40, .18);
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--ink);
  font: 14px/1.65 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-dark); }

.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.muted { color: var(--muted); }
.mono { font-family: var(--mono); }
.nowrap { white-space: nowrap; }

/* 头部 */
.site-header {
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 40;
}
.header-inner { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); }
.brand:hover { color: var(--ink); }
.brand-mark {
  width: 32px; height: 32px; border-radius: 8px; background: var(--brand);
  color: #fff; font-weight: 700; display: grid; place-items: center; font-size: 15px;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 15px; letter-spacing: .2px; }
.brand-text small { font-size: 11px; color: var(--muted); letter-spacing: .4px; }
.site-nav { display: flex; gap: 4px; flex: 1; }
.site-nav a {
  color: var(--ink-2); padding: 6px 12px; border-radius: var(--radius-sm); font-size: 13.5px;
}
.site-nav a:hover { background: var(--surface-2); color: var(--ink); }
.site-nav a.active { color: var(--brand); background: var(--brand-soft); font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 8px; }
.user-chip {
  display: flex; align-items: center; gap: 7px; padding: 4px 10px 4px 4px;
  border: 1px solid var(--line); border-radius: 999px; background: var(--surface);
}
.avatar {
  width: 24px; height: 24px; border-radius: 50%; background: var(--brand-soft);
  color: var(--brand); font-size: 12px; font-weight: 600; display: grid; place-items: center;
}
.user-name { font-size: 13px; max-width: 84px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.site-notice { background: #fffaeb; border-bottom: 1px solid #f5e2b8; color: #8a5a00; font-size: 13px; padding: 8px 0; }
.site-main { min-height: calc(100vh - 200px); padding: 28px 0 56px; }

/* 底部 */
.site-footer { border-top: 1px solid var(--line); background: var(--surface); padding: 20px 0; font-size: 12.5px; }
.footer-inner { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--ink-2); }
.footer-links { display: flex; gap: 14px; flex-wrap: wrap; }

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 9px 16px; border-radius: var(--radius-sm); border: 1px solid transparent;
  font-size: 13.5px; font-weight: 500; cursor: pointer; transition: .15s;
  background: var(--surface); color: var(--ink); font-family: inherit;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--brand); color: #fff; box-shadow: var(--shadow); }
.btn-primary:hover { background: var(--brand-dark); color: #fff; }
.btn-ghost { border-color: var(--line-strong); color: var(--ink-2); background: var(--surface); }
.btn-ghost:hover { border-color: #b6c0cd; background: var(--surface-2); color: var(--ink); }
.btn-danger { background: var(--red-soft); color: var(--red); border-color: #f6cfc9; }
.btn-danger:hover { background: #fbdcd7; }
.btn-sm { padding: 6px 11px; font-size: 12.5px; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .55; cursor: not-allowed; }

/* 卡片 */
.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow);
}
.card-head {
  padding: 16px 20px; border-bottom: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.card-title { font-size: 15px; font-weight: 600; margin: 0; }
.card-body { padding: 20px; }
.card-foot { padding: 14px 20px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 12px; align-items: center; }

/* 首页 */
.hero { padding: 44px 0 40px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px; padding: 5px 12px; border-radius: 999px;
  background: var(--brand-soft); color: var(--brand); font-size: 12.5px; font-weight: 600; letter-spacing: .2px;
}
.hero h1 {
  font-size: 40px; line-height: 1.22; margin: 18px 0 14px; letter-spacing: -.6px; font-weight: 700;
}
.hero .lead { font-size: 16px; color: var(--ink-2); max-width: 620px; margin: 0 0 28px; line-height: 1.75; }

.search-box {
  display: flex; gap: 10px; align-items: stretch; flex-wrap: wrap;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: 12px; padding: 10px; box-shadow: var(--shadow-lg); max-width: 760px;
}
.search-box .field-inline { display: flex; align-items: center; flex: 1; min-width: 260px; gap: 0; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface-2); padding: 0 4px; }
.search-box input[type=text] {
  flex: 1; border: 0; background: transparent; padding: 10px 12px; font-size: 15px;
  font-family: var(--mono); color: var(--ink); outline: none; min-width: 150px;
}
.search-box select {
  border: 0; border-left: 1px solid var(--line); background: transparent;
  padding: 10px 8px; font-size: 14px; color: var(--ink-2); outline: none; font-family: var(--mono);
}
.search-result { margin-top: 14px; min-height: 24px; font-size: 13.5px; }
.search-result .ok { color: var(--green); }
.search-result .bad { color: var(--red); }
.search-result .warn { color: var(--amber); }
.search-result .hint { color: var(--muted); }

.hero-stats { display: flex; gap: 32px; margin-top: 34px; flex-wrap: wrap; }
.hero-stats .num { font-size: 24px; font-weight: 700; letter-spacing: -.4px; }
.hero-stats .lbl { font-size: 12.5px; color: var(--muted); }

.section { padding: 18px 0 8px; }
.section-head { margin-bottom: 18px; }
.section-head h2 { font-size: 22px; margin: 0 0 6px; letter-spacing: -.3px; }
.section-head p { margin: 0; color: var(--muted); font-size: 13.5px; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.feature { padding: 20px; }
.feature h3 { font-size: 15px; margin: 0 0 8px; }
.feature p { margin: 0; color: var(--ink-2); font-size: 13.5px; line-height: 1.75; }
.feature .idx { font-size: 12px; color: var(--brand); font-weight: 700; letter-spacing: 1px; display: block; margin-bottom: 10px; }

.steps { counter-reset: step; display: grid; gap: 14px; }
.step { display: flex; gap: 14px; align-items: flex-start; }
.step-num {
  width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center;
  background: var(--brand-soft); color: var(--brand); font-weight: 700; font-size: 13px; flex: 0 0 auto;
}
.step h4 { margin: 2px 0 4px; font-size: 14px; }
.step p { margin: 0; color: var(--muted); font-size: 13px; }

/* 表单 */
.form-row { margin-bottom: 16px; }
.form-row label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--ink-2); }
.form-row .help { font-size: 12px; color: var(--muted); margin-top: 5px; }
.input, input[type=text], input[type=email], input[type=password], input[type=number], select, textarea {
  width: 100%; padding: 9px 12px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  background: var(--surface); font: inherit; font-size: 13.5px; color: var(--ink); outline: none;
}
input:focus, select:focus, textarea:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(26, 86, 219, .12); }
.input-mono, input.input-mono { font-family: var(--mono); }
textarea { min-height: 88px; resize: vertical; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
.form-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.field-error { color: var(--red); font-size: 12.5px; margin-top: 6px; }

/* 提示条 */
.flash-stack { display: grid; gap: 8px; margin-bottom: 18px; }
.flash {
  padding: 10px 14px; border-radius: var(--radius-sm); font-size: 13.5px;
  border: 1px solid transparent;
}
.flash-success { background: var(--green-soft); color: var(--green); border-color: #c6e9d8; }
.flash-error { background: var(--red-soft); color: var(--red); border-color: #f6cfc9; }
.flash-info { background: var(--brand-soft); color: var(--brand); border-color: #cfdcfb; }
.flash-warning { background: var(--amber-soft); color: var(--amber); border-color: #f3dcbc; }

/* 徽章 */
.badge {
  display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px;
  font-weight: 600; line-height: 1.7; white-space: nowrap;
}
.badge-green { background: var(--green-soft); color: var(--green); }
.badge-amber { background: var(--amber-soft); color: var(--amber); }
.badge-red { background: var(--red-soft); color: var(--red); }
.badge-gray { background: #f0f2f5; color: var(--muted); }
.badge-blue { background: var(--brand-soft); color: var(--brand); }

/* 认证页 */
.page-auth .site-main { padding-top: 56px; }
.auth-wrap { max-width: 420px; margin: 0 auto; }
.auth-card { padding: 30px 28px; }
.auth-card h1 { font-size: 22px; margin: 0 0 6px; }
.auth-card .sub { color: var(--muted); font-size: 13px; margin: 0 0 22px; }
.auth-foot { text-align: center; font-size: 13px; color: var(--muted); margin-top: 18px; }

/* 页面标题 */
.page-head { margin-bottom: 22px; }
.page-head h1 { font-size: 26px; margin: 0 0 6px; letter-spacing: -.4px; }
.page-head p { margin: 0; color: var(--muted); font-size: 13.5px; }
.page-head-row { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; }

/* 域名列表 */
.domain-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.domain-card { padding: 18px 20px; display: flex; flex-direction: column; gap: 12px; }
.domain-card .fq {
  font-family: var(--mono); font-size: 16px; font-weight: 600; letter-spacing: -.2px;
  word-break: break-all; color: var(--ink);
}
.domain-card .meta { display: flex; gap: 14px; font-size: 12.5px; color: var(--muted); flex-wrap: wrap; }
.domain-card .row { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.empty-state { padding: 56px 20px; text-align: center; color: var(--muted); }
.empty-state h3 { font-size: 16px; color: var(--ink); margin: 0 0 6px; }

/* 域名控制台 */
.dom-head { padding: 22px 24px; }
.dom-head .fqdn {
  font-family: var(--mono); font-size: 24px; font-weight: 700; letter-spacing: -.4px;
  word-break: break-all; line-height: 1.35;
}
.dom-head .sub-line { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 10px; color: var(--muted); font-size: 13px; }
.dom-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); padding: 0 20px; }
.tabs a { padding: 12px 12px 10px; font-size: 13.5px; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tabs a.active { color: var(--ink); font-weight: 600; border-bottom-color: var(--brand); }

/* 表格 */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.card, .card-body, .table-wrap { min-width: 0; }
table.data { width: 100%; border-collapse: collapse; font-size: 13.5px; }
table.data thead th {
  text-align: left; font-weight: 600; color: var(--muted); font-size: 12.5px;
  padding: 10px 14px; background: var(--surface-2); border-bottom: 1px solid var(--line); white-space: nowrap;
}
table.data tbody td { padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: middle; }
table.data tbody tr:hover { background: #fbfcfd; }
table.data tbody tr:last-child td { border-bottom: 0; }
.cell-label { font-family: var(--mono); font-weight: 600; }
.cell-content { font-family: var(--mono); color: var(--ink-2); overflow-wrap: anywhere; max-width: 340px; min-width: 140px; }
.type-tag {
  font-family: var(--mono); font-size: 12px; font-weight: 700; padding: 2px 7px;
  border-radius: 4px; background: #eff1f5; color: var(--ink-2); letter-spacing: .3px;
}
.row-actions { display: flex; gap: 6px; justify-content: flex-end; flex-wrap: nowrap; }
.row-actions .btn { white-space: nowrap; padding: 5px 10px; }
.row-actions form { display: inline; }

/* 记录表单 */
.record-form .fields-by-type { display: none; }
.record-form .fields-by-type.active { display: block; }
.fqdn-preview {
  font-family: var(--mono); font-size: 13px; color: var(--ink-2); background: var(--surface-2);
  border: 1px dashed var(--line-strong); border-radius: var(--radius-sm); padding: 9px 12px; margin-top: 6px;
  word-break: break-all;
}
.fqdn-preview strong { color: var(--brand); }

/* 统计块 */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.stat { padding: 16px 18px; }
.stat .k { font-size: 12.5px; color: var(--muted); margin-bottom: 6px; }
.stat .v { font-size: 24px; font-weight: 700; letter-spacing: -.5px; }
.stat .v small { font-size: 12px; font-weight: 400; color: var(--muted); margin-left: 4px; }

/* 进度 */
.progress { height: 6px; background: #eef1f5; border-radius: 999px; overflow: hidden; }
.progress > i { display: block; height: 100%; background: var(--brand); border-radius: 999px; }
.progress.warn > i { background: var(--amber); }

/* 弹窗 */
.modal-mask {
  position: fixed; inset: 0; background: rgba(15, 23, 42, .42);
  display: none; align-items: center; justify-content: center; z-index: 90; padding: 20px;
}
.modal-mask.open { display: flex; }
.modal {
  background: var(--surface); border-radius: 12px; max-width: 480px; width: 100%;
  box-shadow: 0 24px 64px -16px rgba(16, 24, 40, .4); padding: 24px;
}
.modal h3 { margin: 0 0 8px; font-size: 16px; }
.modal p { margin: 0 0 16px; color: var(--ink-2); font-size: 13.5px; }

/* 空状态 */
.kv { display: grid; grid-template-columns: 130px 1fr; gap: 10px 16px; font-size: 13.5px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; word-break: break-all; }

/* 后台布局 */
.page-admin body, body.page-admin { background: #f2f4f8; }
.admin-shell { display: grid; grid-template-columns: 216px 1fr; min-height: 100vh; }
.admin-side {
  background: #101a2e; color: #c6cddb; padding: 20px 14px; position: sticky; top: 0; height: 100vh;
  display: flex; flex-direction: column; gap: 6px;
}
.admin-side .side-brand { display: flex; align-items: center; gap: 9px; padding: 4px 8px 16px; color: #fff; font-weight: 600; font-size: 14px; }
.admin-side a {
  display: block; padding: 9px 12px; border-radius: 6px; color: #c6cddb; font-size: 13.5px;
}
.admin-side a:hover { background: rgba(255, 255, 255, .07); color: #fff; }
.admin-side a.active { background: rgba(59, 130, 246, .22); color: #fff; }
.admin-side .side-foot { margin-top: auto; font-size: 12px; color: #7d8798; padding: 8px; line-height: 1.7; }
.admin-main { padding: 24px 28px 56px; }
.admin-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; gap: 12px; flex-wrap: wrap; }
.admin-top h1 { font-size: 20px; margin: 0; }
.admin-top .who { font-size: 12.5px; color: var(--muted); }

.toolbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.toolbar form { display: flex; gap: 8px; align-items: center; }
.toolbar input, .toolbar select { width: auto; min-width: 160px; }

.pager { display: flex; gap: 6px; align-items: center; justify-content: flex-end; padding: 14px 20px; font-size: 12.5px; }
.pager a, .pager span { padding: 4px 9px; border-radius: 5px; border: 1px solid var(--line); color: var(--ink-2); }
.pager a:hover { background: var(--surface-2); }
.pager span.current { background: var(--brand); color: #fff; border-color: var(--brand); }

.code-box {
  font-family: var(--mono); font-size: 12px; line-height: 1.65; background: #0f172a; color: #d6deeb;
  padding: 14px 16px; border-radius: 8px; overflow-x: auto; white-space: pre-wrap; word-break: break-all;
  max-height: 320px;
}
.code-inline { font-family: var(--mono); background: #f2f4f8; padding: 1px 6px; border-radius: 4px; font-size: 12.5px; }

.danger-zone { border-color: #f6cfc9; background: #fffbfa; }

/* 域名控制台两栏：桌面左记录右表单，移动端单列 */
.domain-console { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 18px; margin-top: 18px; align-items: start; }
.domain-console > * { min-width: 0; }
.srv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.caa-grid { display: grid; grid-template-columns: 90px 1fr; gap: 8px; }
.apply-grid { grid-template-columns: minmax(0, 1.5fr) 1fr; gap: 18px; }
.help-grid { display: grid; grid-template-columns: 220px minmax(0, 1fr); gap: 24px; align-items: start; }

@media (max-width: 900px) {
  .grid-3, .grid-2, .domain-grid, .stat-grid, .form-grid { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
  .header-inner { flex-wrap: wrap; height: auto; padding: 8px 0; gap: 8px 12px; }
  .site-nav { order: 3; width: 100%; flex: none; overflow-x: auto; -webkit-overflow-scrolling: touch;
    border-top: 1px solid var(--line); padding-top: 6px; }
  .site-nav a { white-space: nowrap; }
  .header-actions { margin-left: auto; }
  .header-actions .btn { white-space: nowrap; }
  .search-box { flex-direction: column; align-items: stretch; }
  .search-box .field-inline { min-width: 0; width: 100%; flex-wrap: wrap; }
  .search-box input[type=text] { min-width: 0; flex: 1 1 100%; }
  .search-box select { width: 100%; border-left: 0; border-top: 1px solid var(--line); }
  .search-box > .btn { width: 100%; }
  .hero-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px 24px; }
  .dom-actions { margin-top: 12px; }
  .domain-console, .apply-grid, .help-grid { grid-template-columns: 1fr; }
  .help-grid nav { position: static; }
  .admin-shell { grid-template-columns: 1fr; }
  .admin-side { position: static; height: auto; flex-direction: row; overflow-x: auto; }
  .admin-side .side-brand, .admin-side .side-foot { display: none; }
  .admin-main { padding: 18px 16px 40px; }
}