:root {
  --bg: #fafcfa;
  --surface: #ffffff;
  --surface-soft: #f8fbf9;
  --line: #eff4f0;
  --text: #25322b;
  --muted: #6d7d74;
  --accent: #9fbcae;
  --accent-strong: #2f6047;
  --accent-soft: #f0f7f3;
  --danger: #b64b47;
  --warn: #a5792a;
  --ok: #2f7a52;
  --radius: 5px;
  --shadow: 0 10px 30px rgba(38, 60, 47, 0.035);
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  font-size: 14px;
  line-height: 1.6;
}
a { color: var(--accent-strong); }
code { font-family: "Cascadia Code", Consolas, monospace; font-size: 12px; color: var(--accent-strong); background: var(--accent-soft); padding: 2px 6px; border-radius: 3px; }
h1, h2, h3 { margin: 0; font-weight: 650; letter-spacing: .2px; }
p { margin: 0; }
.eyebrow { font-size: 11px; letter-spacing: .18em; color: var(--muted); text-transform: uppercase; margin-bottom: 4px; }
.hint { color: var(--muted); font-size: 12px; }

/* 布局 */
.shell { display: grid; grid-template-columns: 248px 1fr; min-height: 100vh; }
.sidebar { background: #f5f9f6; border-right: 1px solid var(--line); padding: 22px 18px; display: flex; flex-direction: column; gap: 22px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand strong { display: block; font-size: 15px; }
.brand small { color: var(--muted); font-size: 12px; }
.nav { display: flex; flex-direction: column; gap: 4px; }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 10px 12px; border: 0; border-radius: 4px; background: transparent; color: var(--text); font-size: 13px; cursor: pointer; text-align: left; text-decoration: none; }
.nav-item span { color: var(--muted); width: 16px; }
.nav-item:hover { background: rgba(255,255,255,.6); }
.nav-item.active { background: var(--surface); color: var(--accent-strong); box-shadow: var(--shadow); font-weight: 600; }
.sidebar-foot { margin-top: auto; display: flex; flex-direction: column; gap: 10px; }
.profile { display: flex; align-items: center; gap: 10px; border: 0; background: transparent; cursor: pointer; padding: 6px; border-radius: 4px; text-align: left; }
.profile:hover { background: rgba(255,255,255,.6); }
.profile small { display: block; color: var(--muted); font-size: 11px; }
.profile > span:last-child { margin-left: auto; color: var(--muted); }
.link { border: 0; background: transparent; color: var(--muted); font-size: 12px; text-align: left; cursor: pointer; padding: 4px 6px; }
.link:hover { color: var(--accent-strong); }

.main { padding: 22px 26px 40px; max-width: 1180px; width: 100%; min-width: 0; margin-inline: auto; }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding-bottom: 18px; border-bottom: 1px solid var(--line); margin-bottom: 22px; }
.topbar strong { font-size: 18px; }
.pill { padding: 5px 12px; border-radius: 4px; background: var(--surface); border: 1px solid var(--line); font-size: 12px; color: var(--muted); }
.pill.ok { color: var(--ok); border-color: #e3f1e9; background: #f8fdfa; }
.pill.bad { color: var(--danger); border-color: #f7e7e6; background: #fef9f9; }

.page { display: flex; flex-direction: column; gap: 18px; }
.page[hidden] { display: none; }
.page-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; }
.page-heading p { color: var(--muted); font-size: 13px; max-width: 640px; }

/* 卡片 / 表格 */
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px 20px; box-shadow: var(--shadow); }
.panel-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; margin-bottom: 12px; }
.panel-head h2 { font-size: 16px; }
.panel-head p { color: var(--muted); font-size: 12px; margin-top: 2px; }
.stats-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.stat { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; }
.stat small { color: var(--muted); font-size: 12px; }
.stat strong { display: block; font-size: 22px; margin-top: 4px; }
.db-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.db-item { background: var(--surface-soft); border-radius: 4px; padding: 12px 14px; }
.db-item small { color: var(--muted); font-size: 12px; }
.db-item strong { display: block; font-size: 15px; margin-top: 4px; }
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; max-width: 100%; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { font-size: 12px; color: var(--muted); font-weight: 600; background: var(--surface-soft); }
tr:last-child td { border-bottom: 0; }
td.empty { text-align: center; color: var(--muted); padding: 22px; }
.tag { display: inline-block; padding: 2px 9px; border-radius: 4px; font-size: 11px; background: var(--surface-soft); color: var(--muted); }
.tag.ok { background: #f4faf7; color: var(--ok); }
.tag.warn { background: #fdf9f2; color: var(--warn); }
.tag.bad { background: #fdf6f5; color: var(--danger); }

/* 表单 / 按钮 */
input, select, textarea { font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--line); border-radius: 4px; padding: 9px 12px; width: 100%; outline: none; }
input:focus, select:focus, textarea:focus { border-color: #d4e3db; box-shadow: 0 0 0 3px rgba(63, 122, 92, .05); }
textarea { resize: vertical; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field > span { font-size: 12px; color: var(--muted); }
.field.full { grid-column: 1 / -1; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
form { display: contents; }
.button { border: 1px solid var(--line); background: var(--surface); color: var(--text); padding: 9px 16px; border-radius: 4px; font-size: 13px; cursor: pointer; transition: .15s; }
.button:hover { border-color: #dde9e2; }
.button-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-strong); }
.button-primary:hover { background: #8eb0a0; border-color: #8eb0a0; }
.button:disabled { opacity: .55; cursor: not-allowed; }
.button-sm { padding: 5px 12px; font-size: 12px; }
.icon-button { border: 0; background: transparent; font-size: 20px; color: var(--muted); cursor: pointer; padding: 0 6px; }
.form-error { color: var(--danger); font-size: 12px; margin: 8px 0; }
.form-error[hidden] { display: none; }

/* 解析下单 */
.parse-panel textarea { min-height: 92px; font-family: "Cascadia Code", Consolas, monospace; font-size: 12px; }
.parse-fields { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 8px; }
.parse-fields .field { flex: 1 1 240px; max-width: 320px; }
.parse-fields .parse-mapping { margin-bottom: 0; }
.parse-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.parse-mapping { max-width: 300px; margin-bottom: 8px; }
.parse-note { margin: 0 0 10px; color: var(--muted); font-size: 12px; line-height: 1.5; }
.parse-preview { margin-top: 16px; border-top: 1px dashed var(--line); padding-top: 16px; }
.preview-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin-bottom: 12px; }
.preview-cell { background: var(--surface-soft); border-radius: 4px; padding: 10px 12px; }
.preview-cell small { color: var(--muted); font-size: 11px; display: block; }
.preview-cell strong { font-size: 14px; word-break: break-all; }
.preview-customer { background: var(--surface-soft); border-radius: 4px; padding: 10px 12px; font-size: 12px; color: var(--muted); margin-bottom: 12px; }
.preview-customer b { color: var(--text); }
.preview-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.result-box { border: 1px solid #e7f2eb; background: #fafdfa; border-radius: 4px; padding: 12px 14px; font-size: 13px; }

/* 映射域名 */
.mapping-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; }
.mapping-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); display: flex; flex-direction: column; gap: 8px; }
.mapping-card .domain { font-family: "Cascadia Code", Consolas, monospace; font-size: 13px; word-break: break-all; color: var(--accent-strong); }
.mapping-card .meta { display: flex; justify-content: space-between; color: var(--muted); font-size: 12px; }
.mapping-card .actions { display: flex; gap: 8px; }
.empty { color: var(--muted); text-align: center; padding: 30px 0; }

/* 复制域名文案 */
.copy-panel { margin-bottom: 14px; }
.copy-preview-box { background: var(--surface-soft); border-radius: 4px; padding: 10px 12px; }
.copy-preview-box small { color: var(--muted); font-size: 11px; display: block; margin-bottom: 4px; }
.copy-preview-box p { margin: 0; font-size: 13px; line-height: 1.6; word-break: break-all; white-space: pre-wrap; }

/* 指南说明 */
.guide-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 14px; }
.guide-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; box-shadow: var(--shadow); display: flex; gap: 14px; }
.guide-index { font-family: "Cascadia Code", Consolas, monospace; font-size: 13px; color: var(--accent-strong); background: var(--surface-soft); border-radius: 4px; padding: 4px 8px; height: fit-content; }
.guide-card h3 { font-size: 15px; margin: 0 0 6px; }
.guide-card p { color: var(--muted); font-size: 12px; line-height: 1.6; margin: 0 0 10px; }
.guide-steps { margin: 0; padding-left: 18px; color: var(--text); font-size: 12px; line-height: 1.8; }
.guide-steps li + li { margin-top: 4px; }

/* 抽屉 / 弹窗 */
.drawer-backdrop { position: fixed; inset: 0; background: rgba(30, 46, 37, .18); display: flex; align-items: center; justify-content: center; padding: 20px; z-index: 60; }
.drawer-backdrop[hidden] { display: none; }
.drawer { width: min(620px, 100%); max-height: 88vh; overflow-y: auto; background: var(--surface); border-radius: 6px; padding: 20px 22px; box-shadow: 0 30px 70px rgba(25, 44, 33, .3); }
.drawer-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 10px; margin-top: 16px; }

/* Toast */
.toast { position: fixed; left: 50%; bottom: 30px; transform: translate(-50%, 20px); background: #25352c; color: #fff; padding: 10px 18px; border-radius: 4px; font-size: 13px; opacity: 0; pointer-events: none; transition: .2s; z-index: 80; max-width: calc(100vw - 32px); text-align: center; }
.toast.visible { opacity: 1; transform: translate(-50%, 0); }
.toast.error { background: var(--danger); }

/* 登录 / 错误页 */
.center-page { display: grid; place-items: center; min-height: 100vh; padding: 24px; background: #0d1b2a url("https://www.mengxiang.ink/img/login-bg1.jpg") center / cover no-repeat; }
.login-card, .error-card { width: min(380px, 100%); background: var(--surface); border: 1px solid var(--line); border-radius: 6px; padding: 30px 28px; box-shadow: 0 24px 60px rgba(6, 18, 32, .35); display: flex; flex-direction: column; gap: 16px; }
.login-brand { display: flex; gap: 10px; align-items: center; }
.login-brand strong { display: block; font-size: 18px; color: var(--accent-strong); }
#login-form { display: flex; flex-direction: column; gap: 14px; }
.error-card h1 { font-size: 22px; }
.error-card p { color: var(--muted); }

/* 客户下单页 */
.buy-page { background: linear-gradient(180deg, #f7faf8 0%, #fbfdfc 320px); }
.buy-header { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 28px; max-width: 1180px; margin: 0 auto; }
.mapping-badge { font-size: 12px; color: var(--muted); }
.buy-main { max-width: 1180px; margin: 0 auto; padding: 8px 28px 60px; }
.buy-intro { padding: 26px 0 18px; }
.buy-intro h1 { font-size: 26px; margin: 6px 0 8px; }
.buy-intro p { color: var(--muted); max-width: 640px; }
.buy-announce { background: #fefbf4; border: 1px solid #f7f0e1; color: #806327; padding: 12px 16px; border-radius: 4px; font-size: 13px; margin-bottom: 18px; white-space: pre-wrap; }
.buy-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.buy-card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; display: flex; flex-direction: column; gap: 10px; }
.buy-card h3 { font-size: 16px; }
.buy-card .cat { font-size: 11px; color: var(--muted); }
.buy-card .desc { color: var(--muted); font-size: 12px; min-height: 36px; }
.buy-card .price-line { display: flex; justify-content: space-between; align-items: flex-end; }
.buy-card .price-line strong { font-size: 18px; color: var(--accent-strong); }
.buy-card .price-line small { color: var(--muted); font-size: 12px; }
.buy-empty, .buy-foot { text-align: center; color: var(--muted); padding: 30px 0; font-size: 13px; }
.buy-selected { background: var(--surface-soft); border-radius: 4px; padding: 12px 14px; margin-bottom: 14px; font-size: 13px; }
.buy-selected strong { color: var(--accent-strong); }
#buy-result textarea { font-family: "Cascadia Code", Consolas, monospace; font-size: 12px; margin: 10px 0; }

@media (max-width: 900px) {
  .shell { display: block; }
  .sidebar {
    position: sticky; top: 0; z-index: 30;
    display: grid; grid-template-columns: minmax(0, 1fr) auto; grid-template-areas: "brand foot" "nav nav";
    gap: 8px 12px; padding: 10px 14px;
    border-right: 0; border-bottom: 1px solid var(--line);
    background: rgba(245, 249, 246, .94);
    -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  }
  .brand { grid-area: brand; }
  .nav { grid-area: nav; flex-direction: row; overflow-x: auto; gap: 6px; padding-bottom: 2px; scrollbar-width: none; }
  .nav::-webkit-scrollbar { display: none; }
  .nav-item { flex: none; padding: 8px 12px; border-radius: 4px; white-space: nowrap; }
  .nav-item.active { box-shadow: none; }
  .sidebar .brand small { display: none; }
  .sidebar-foot { grid-area: foot; flex-direction: row; align-items: center; margin: 0; }
  .sidebar-foot .link { display: none; }
  .profile div { display: none; }
  .profile { padding: 2px; }
  .main { padding: 16px 16px calc(32px + env(safe-area-inset-bottom, 0px)); }
  .topbar { padding-bottom: 14px; margin-bottom: 16px; }
  .page { gap: 14px; }
  .panel { padding: 16px; border-radius: 5px; }
  .stats-grid, .db-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .preview-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .form-grid { grid-template-columns: 1fr; gap: 12px; }
  table { font-size: 12px; }
  th, td { padding: 8px 10px; }
  .guide-list { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
  .mapping-cards { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .buy-header, .buy-main { padding-left: 16px; padding-right: 16px; }
  .drawer { max-height: 92vh; }
}

@media (max-width: 520px) {
  .topbar { flex-wrap: wrap; gap: 8px; }
  .topbar strong { font-size: 16px; }
  .pill { font-size: 11px; padding: 4px 10px; }
  .page-heading { flex-direction: column; align-items: flex-start; gap: 10px; }
  .page-heading h1 { font-size: 20px; }
  .page-heading p { font-size: 12px; }
  .stats-grid, .db-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 6px; }
  .preview-grid { grid-template-columns: 1fr; }
  .stat { padding: 8px 6px; }
  .stat small, .db-item small { font-size: 10px; line-height: 1.3; display: block; }
  .stat strong, .db-item strong { font-size: 13px; margin-top: 2px; word-break: break-all; }
  .db-item { padding: 8px 6px; }
  .guide-list, .mapping-cards { grid-template-columns: 1fr; }
  .panel { padding: 14px; }
  .panel-head { flex-wrap: wrap; }
  .parse-mapping { max-width: none; }
  .parse-fields .field { flex: 1 1 100%; max-width: none; }
  .parse-actions .button, .preview-actions .button { flex: 1 1 140px; }
  input, select, textarea { font-size: 16px; padding: 10px 12px; }
  .button { padding: 10px 14px; font-size: 13px; }
  .guide-card { padding: 14px; gap: 10px; }
  table { font-size: 11px; }
  th, td { padding: 7px 9px; }
  .drawer-backdrop { padding: 0; align-items: flex-end; }
  .drawer {
    width: 100%; max-height: 92vh;
    border-radius: 6px 6px 0 0;
    padding: 18px 16px calc(18px + env(safe-area-inset-bottom, 0px));
  }
  .drawer-actions { justify-content: stretch; }
  .drawer-actions .button { flex: 1; }
  .toast { bottom: calc(18px + env(safe-area-inset-bottom, 0px)); }
  .center-page { padding: 18px; }
  .login-card { padding: 26px 20px; }
}

@media (max-width: 380px) {
  .main { padding-left: 12px; padding-right: 12px; }
  .stats-grid, .db-grid { gap: 4px; }
  .stat, .db-item { padding: 7px 4px; }
  .brand strong { font-size: 13px; }
  .nav-item { font-size: 12px; padding: 7px 10px; }
  .panel { padding: 12px; }
  .page-heading h1 { font-size: 18px; }
}