:root {
  color-scheme: light;
  --bg: #f4f0e8;
  --paper: #fffdf8;
  --ink: #1f1a17;
  --muted: #5e564e;
  --line: #e4d9cc;
  --accent: #8c3d2f;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 17px/1.7 "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif;
}
header, main, footer { width: min(760px, calc(100% - 32px)); margin: 0 auto; }
header { padding: 28px 0 8px; }
nav { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; }
.nav-links { display: flex; flex-wrap: wrap; gap: 8px 16px; }
.nav-login { margin-left: auto; }
a.nav-login {
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  border-radius: 999px;
  padding: 4px 14px;
}
body.guide header, body.guide main, body.guide footer { width: min(1080px, calc(100% - 32px)); }
.app-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
.app-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  min-height: 320px;
  padding: 28px 24px 22px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 24px;
  color: inherit;
  text-decoration: none;
}
.app-card img, .app-hero {
  width: 88px;
  height: 88px;
  border-radius: 22px;
  display: block;
}
.app-hero { margin-top: 18px; }
.app-card h2 { margin: 10px 0 0; font-size: 26px; }
.app-card p { margin: 0; color: var(--muted); }
.app-more { margin-top: auto; color: var(--accent); font-size: 15px; }
a.download {
  display: inline-block;
  margin: 8px 0 4px;
  background: var(--accent);
  color: #fffdf8;
  border-radius: 999px;
  padding: 8px 16px;
  text-decoration: none;
}
@media (min-width: 860px) {
  .app-grid { grid-template-columns: repeat(3, 1fr); }
}
nav a, footer a { color: var(--accent); text-decoration: none; }
nav a { font-size: 15px; }
button, .tabs button {
  font: inherit;
  background: var(--accent);
  color: #fffdf8;
  border: 0;
  border-radius: 999px;
  padding: 8px 16px;
  cursor: pointer;
}
button.secondary, .tabs button[aria-selected="false"] {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--line);
}
.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
label { display: block; margin: 14px 0 4px; }
input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  font: inherit;
  background: #fff;
  color: var(--ink);
}
form button { margin-top: 14px; }
.panel { display: none; }
.panel.active { display: block; }
#status { min-height: 1.7em; }
h1 { font-size: 34px; line-height: 1.25; margin: 18px 0 8px; letter-spacing: -0.02em; }
h2 { font-size: 22px; margin: 32px 0 8px; }
.lede, .note, footer, td, li { color: var(--muted); }
.lede { font-size: 18px; }
.card, table, .callout {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
}
.card { padding: 16px 18px; margin: 12px 0; }
.card h2 { margin-top: 0; }
table { width: 100%; border-collapse: collapse; margin: 12px 0 20px; }
th, td { text-align: left; vertical-align: top; padding: 12px 14px; border-bottom: 1px solid var(--line); }
th { color: var(--ink); font-weight: 600; }
.callout { padding: 14px 16px; margin: 16px 0; }
footer { padding: 28px 0 48px; font-size: 14px; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.92em; }

body.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 16px;
  color: #24312f;
  background:
    radial-gradient(900px 420px at 50% -10%, rgba(94, 214, 196, 0.28), transparent 60%),
    linear-gradient(180deg, #f7fbfa 0%, #eef5f3 100%);
  background-image:
    radial-gradient(900px 420px at 50% -10%, rgba(94, 214, 196, 0.28), transparent 60%),
    linear-gradient(rgba(180, 206, 200, 0.28) 1px, transparent 1px),
    linear-gradient(90deg, rgba(180, 206, 200, 0.28) 1px, transparent 1px),
    linear-gradient(180deg, #f7fbfa 0%, #eef5f3 100%);
  background-size: auto, 28px 28px, 28px 28px, auto;
}
body.auth-shell main {
  width: min(420px, 100%);
  margin: 0;
}
body.auth-shell .auth-card-wide { width: min(480px, 100%); }
.auth-card {
  background: #fff;
  border-radius: 28px;
  box-shadow: 0 24px 60px rgba(36, 72, 66, 0.08);
  padding: 36px 32px 28px;
  text-align: center;
}
.auth-logo {
  width: 58px;
  height: 58px;
  margin: 0 auto 14px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 700;
  font-size: 28px;
  background: linear-gradient(180deg, #7ee0d2, #3ec7b4);
  box-shadow: 0 10px 24px rgba(62, 199, 180, 0.28);
}
.auth-card h1 { margin: 0; font-size: 28px; color: #1d2b29; }
.auth-sub, .auth-status, .auth-foot { color: #7b8b88; font-size: 14px; }
.auth-card form, .auth-block { text-align: left; }
.auth-card label { margin: 14px 0 6px; font-size: 14px; color: #31423f; }
.auth-card .field { position: relative; }
.auth-card input {
  border: 1px solid #e6eeec;
  border-radius: 12px;
  background: #fff;
  padding: 12px 14px;
  color: #24312f;
}
.auth-card .field-action {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 34px;
  height: 34px;
  padding: 0;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: #8aa09c;
}
.auth-primary, .auth-ghost, .auth-link {
  width: 100%;
  border-radius: 12px;
  padding: 12px 16px;
  font-size: 15px;
}
.auth-primary {
  margin-top: 18px;
  background: #5dcec0;
  color: #fff;
  border: 0;
}
.auth-ghost {
  margin-top: 10px;
  background: #fff;
  color: #3f5552;
  border: 1px solid #e3ecea;
}
.auth-link {
  margin-top: 8px;
  background: transparent;
  color: #3ec7b4;
  border: 0;
}
.human-check {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 16px 0 18px;
  padding: 14px 16px;
  border: 1px solid #e3e8ef;
  border-radius: 12px;
  background: #fff;
}
.human-check button {
  display: flex;
  align-items: center;
  gap: 12px;
  width: auto;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: #24312f;
  font-size: 16px;
}
.human-box {
  width: 28px;
  height: 28px;
  border: 2px solid #c5ced6;
  border-radius: 4px;
  background: #fff;
}
.human-check button.is-busy .human-box { border-color: #5dcec0; }
.human-check button.is-done .human-box {
  position: relative;
  border-color: #1f9d55;
  background: #fff;
}
.human-check button.is-done .human-box::after {
  content: "";
  position: absolute;
  left: 8px;
  top: 3px;
  width: 7px;
  height: 13px;
  border: solid #1f9d55;
  border-width: 0 3px 3px 0;
  transform: rotate(45deg);
}
.human-brand {
  display: grid;
  justify-items: center;
  color: #60708a;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.15;
}
.human-mark {
  width: 28px;
  height: 28px;
  margin-bottom: 2px;
  border-radius: 8px;
  background:
    radial-gradient(circle at 50% 45%, #fff 0 5px, transparent 6px),
    linear-gradient(180deg, #7ee0d4, #3ec7b4);
}
.human-brand-sub {
  font-size: 11px;
  font-weight: 500;
}
.passkey-dialog {
  width: min(360px, calc(100vw - 32px));
  padding: 22px 20px 18px;
  border: 1px solid #e3ecea;
  border-radius: 18px;
  background: #fff;
  color: #24312f;
  box-shadow: 0 18px 48px rgba(28, 48, 45, 0.18);
}
.passkey-dialog::backdrop {
  background: rgba(20, 34, 32, 0.42);
}
.passkey-dialog h2 {
  margin: 0 0 6px;
  font-size: 20px;
}
.passkey-dialog .auth-sub {
  margin: 0 0 14px;
  text-align: left;
}
.passkey-dialog-actions {
  display: grid;
  gap: 8px;
  margin-top: 8px;
}
.passkey-dialog .auth-primary,
.passkey-dialog .auth-ghost {
  margin-top: 0;
}
.passkey-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin: 10px 0;
}
.passkey-row span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.auth-divider {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
  margin: 18px 0 8px;
  color: #9aada9;
  font-size: 13px;
}
.auth-divider::before, .auth-divider::after { content: ""; height: 1px; background: #e6eeec; }
.auth-ghost svg, .auth-primary svg { vertical-align: -2px; margin-right: 6px; }
.auth-block { margin-top: 22px; padding-top: 8px; border-top: 1px solid #eef3f2; }
.auth-block h2 { margin: 8px 0; font-size: 18px; text-align: left; }
.auth-foot { margin: 18px 0 0; }
.auth-foot a { color: #3ec7b4; }
.auth-status { min-height: 1.4em; text-align: center; }
body[data-page="account"] main.account-page {
  max-width: 720px;
  padding: 20px 24px 28px;
}
.account-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 4px;
}
.account-head h1 {
  margin: 0;
  font-size: 24px;
}
.account-head .auth-sub {
  margin: 4px 0 0;
  font-size: 13px;
}
.account-back {
  flex: none;
  margin-top: 4px;
  color: #3ec7b4;
  text-decoration: none;
  font-size: 13px;
}
body[data-page="account"] .auth-block {
  margin-top: 12px;
  padding: 12px 14px;
  border: 1px solid #e6eeec;
  border-radius: 14px;
  background: #fff;
}
body[data-page="account"] .auth-block h2 {
  margin: 0;
  font-size: 15px;
  font-weight: 650;
}
.account-block-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
}
.account-meta {
  margin: 0;
  color: #7b8b88;
  font-size: 13px;
}
body[data-page="account"] .auth-sub {
  margin: 0 0 8px;
  font-size: 13px;
  line-height: 1.45;
}
body[data-page="account"] .auth-card label {
  margin: 0 0 4px;
  font-size: 12px;
}
body[data-page="account"] .auth-card input {
  padding: 8px 10px;
  border-radius: 10px;
}
body[data-page="account"] .account-action {
  width: auto;
  min-width: 0;
  margin-top: 0;
  padding: 7px 12px;
  font-size: 13px;
  border-radius: 10px;
}
body[data-page="account"] .auth-primary.account-action {
  margin-top: 0;
}
body[data-page="account"] .passkey-row {
  margin: 0;
  padding: 8px 0;
  border-top: 1px solid #eef3f2;
  font-size: 13px;
}
body[data-page="account"] .passkey-row:first-child { border-top: 0; padding-top: 0; }
body[data-page="account"] .passkey-row .secondary {
  padding: 4px 10px;
  font-size: 12px;
}
.account-grid-form {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 8px 10px;
  align-items: end;
  margin-top: 4px;
}
.account-inline-form {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px 10px;
  align-items: end;
  margin-top: 8px;
}
.account-inline-form label {
  grid-column: 1 / -1;
}
body[data-page="account"] #phone-verify {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed #e6eeec;
}
body[data-page="account"] .totp-qr {
  width: 180px;
  height: 180px;
  margin: 6px 0;
  padding: 6px;
  border-radius: 12px;
}
body[data-page="account"] .totp-qr svg {
  width: 164px;
  height: 164px;
}
body[data-page="account"] #totp-secret {
  margin: 0 0 4px;
  padding: 8px 10px;
  border-radius: 10px;
  font-size: 12px;
}
body[data-page="account"] .auth-status {
  min-height: 1.2em;
  margin: 10px 0 0;
  text-align: left;
  font-size: 13px;
}
@media (max-width: 720px) {
  .account-grid-form,
  .account-inline-form {
    grid-template-columns: 1fr;
  }
  .account-block-head {
    flex-wrap: wrap;
  }
}
#panel-phone { margin-top: 12px; }
.totp-qr {
  display: grid;
  place-items: center;
  width: 240px;
  height: 240px;
  margin: 8px auto 4px;
  padding: 8px;
  background: #fff;
  border: 1px solid #e6eeec;
  border-radius: 16px;
}
.totp-qr svg { width: 220px; height: 220px; display: block; }
#totp-secret {
  display: block;
  margin: 8px 0 0;
  padding: 10px 12px;
  border-radius: 12px;
  background: #f6faf9;
  color: #24312f;
  font-size: 14px;
  letter-spacing: 0.04em;
  word-break: break-all;
}
.admin-nav { display: flex; gap: 16px; justify-content: center; margin: 8px 0 0; font-size: 14px; }
.admin-nav a { color: #3ec7b4; }
body.auth-shell main.dashboard-card { width: min(920px, 100%); text-align: left; }
.dashboard-card h1, .dashboard-card .auth-logo { text-align: center; }
body.admin-app .dashboard-card h1 { text-align: left; }
.chart-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.chart-panel, .user-table {
  background: #f8fbfa;
  border: 1px solid #e6eeec;
  border-radius: 16px;
  padding: 14px;
}
.chart-panel h2, .chart-panel h3 { margin: 0 0 8px; font-size: 15px; color: #31423f; }
.chart-panel svg { width: 100%; height: auto; display: block; }
.chart-number { color: #1d2b29; font-weight: 700; }
.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin: 0 0 8px;
  padding: 0;
  list-style: none;
  color: #31423f;
  font-size: 13px;
}
.chart-legend li { display: flex; align-items: center; gap: 6px; }
.swatch { width: 12px; height: 12px; border-radius: 3px; flex: none; }
.swatch.token { background: #3b82c4; }
.swatch.price { height: 0; width: 18px; border-top: 3px dashed #1d6f66; border-radius: 0; background: none; }
.swatch.request { height: 0; width: 18px; border-top: 3px solid #f5a04c; border-radius: 0; background: none; }
.chart-hover { position: relative; }
.chart-tip {
  position: absolute;
  z-index: 2;
  min-width: 196px;
  padding: 10px 12px;
  border-radius: 12px;
  background: #1d2b29;
  color: #fff;
  font-size: 13px;
  line-height: 1.55;
  pointer-events: none;
  box-shadow: 0 8px 24px rgba(29, 43, 41, 0.18);
}
.chart-tip[hidden] { display: none; }
.chart-tip p { margin: 0; }
.chart-tip .tip-date { font-weight: 700; margin-bottom: 2px; }
.user-head, .user-row {
  display: grid;
  grid-template-columns: 1.3fr .6fr .6fr .8fr .9fr;
  gap: 8px;
  font-size: 13px;
}
.usage-users .user-head, .usage-users .user-row {
  grid-template-columns: 1.15fr .5fr .5fr .7fr .75fr .8fr;
}
.subscription-table .user-head, .subscription-table .user-row {
  grid-template-columns: 1.4fr .6fr .8fr;
}
.user-head { color: #7b8b88; margin-bottom: 6px; }
.user-row { padding: 8px 0; border-top: 1px solid #e6eeec; color: #24312f; }
body.admin-app {
  display: block;
  padding: 0;
  place-items: stretch;
}
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 0 0 16px;
}
.stat-card {
  background: #fff;
  border: 1px solid #e6eeec;
  border-radius: 16px;
  padding: 14px 16px;
}
.stat-card p { margin: 0; color: #7b8b88; font-size: 13px; }
.stat-card strong { display: block; margin-top: 6px; font-size: 22px; color: #1d2b29; }
.stat-card span { display: block; margin-top: 4px; color: #7b8b88; font-size: 12px; }
.admin-frame { display: block; min-height: 100vh; }
.admin-side {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 2;
  width: 200px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 18px 12px;
  overflow: auto;
  background: #15201e;
  border-right: 0;
}
.side-brand { margin: 2px 10px 14px; font-weight: 700; color: #f4fffc; }
.admin-side a {
  display: block;
  padding: 9px 12px;
  border-radius: 10px;
  color: #9eb4af;
  text-decoration: none;
  font-size: 14px;
}
.admin-side a:hover { background: rgba(255,255,255,0.06); color: #e8f7f3; }
.admin-side a[aria-current="page"] { background: #1f9d84; color: #fff; font-weight: 600; }
.side-logout {
  margin-top: auto;
  width: 100%;
  background: transparent;
  color: #9eb4af;
  border: 1px solid rgba(255,255,255,0.12);
}
.side-logout:hover { color: #fff; border-color: rgba(255,255,255,0.28); }
body.admin-app main.dashboard-card,
body.admin-app main.auth-card {
  width: auto;
  max-width: 1180px;
  margin: 0 0 0 200px;
  text-align: left;
  background: transparent;
  box-shadow: none;
  border-radius: 0;
  padding: 20px 22px 36px;
}
body[data-page="dashboard"] {
  background: #eef3f2;
  background-image: none;
}
body[data-page="dashboard"] .board-page {
  max-width: 1180px;
}
.board-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 14px;
}
.board-head h1 {
  margin: 0;
  font-size: 24px;
  letter-spacing: -0.02em;
}
.board-head .auth-sub {
  margin: 4px 0 0;
  font-size: 13px;
}
.board-range {
  margin: 0;
  color: #7b8b88;
  font-size: 12px;
  padding: 6px 10px;
  border: 1px solid #dce6e3;
  border-radius: 999px;
  background: #fff;
}
body[data-page="dashboard"] .stat-grid {
  gap: 10px;
  margin: 0 0 12px;
}
body[data-page="dashboard"] .stat-card {
  padding: 12px 14px;
  border-radius: 12px;
  box-shadow: 0 1px 0 rgba(29, 43, 41, 0.03);
}
body[data-page="dashboard"] .stat-card p {
  font-size: 12px;
}
body[data-page="dashboard"] .stat-card strong {
  margin-top: 4px;
  font-size: 26px;
  letter-spacing: -0.03em;
}
body[data-page="dashboard"] .stat-card span {
  margin-top: 2px;
  font-size: 11px;
}
.board-grid {
  display: grid;
  grid-template-columns: 1.55fr 0.95fr;
  gap: 12px;
  margin-bottom: 12px;
}
.board-grid-2 {
  grid-template-columns: 1fr 1fr;
}
.board-card {
  margin: 0 0 12px;
  padding: 14px 14px 12px;
  background: #fff;
  border: 1px solid #dde7e4;
  border-radius: 14px;
}
.board-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}
.board-card-head h2 {
  margin: 0;
  font-size: 15px;
  color: #1d2b29;
}
.board-card .auth-sub {
  margin: 0;
  font-size: 13px;
  line-height: 1.45;
}
.board-chip {
  margin: 0;
  padding: 3px 8px;
  border-radius: 999px;
  background: #e7f8f5;
  color: #1d6f66;
  font-size: 12px;
  font-weight: 600;
}
.board-note {
  margin: 8px 0 0;
  color: #8aa09c;
  font-size: 11px;
  line-height: 1.4;
}
body[data-page="dashboard"] .chart-legend {
  margin: 0 0 6px;
  gap: 6px 12px;
  font-size: 12px;
}
body[data-page="dashboard"] .user-table {
  margin-top: 8px;
  padding: 10px;
  border-radius: 12px;
  background: #f7faf9;
}
body[data-page="dashboard"] .auth-status {
  min-height: 1.2em;
  margin: 4px 0 0;
  text-align: left;
  font-size: 13px;
}
@media (max-width: 980px) {
  .board-grid,
  .board-grid-2 {
    grid-template-columns: 1fr;
  }
}
.edit-list { display: grid; gap: 12px; margin: 16px 0 8px; }
.edit-link {
  display: block;
  padding: 16px 18px;
  border: 1px solid #e6eeec;
  border-radius: 16px;
  background: #fff;
  color: #1d2b29;
  text-decoration: none;
}
.edit-link span { display: block; color: #7b8b88; font-size: 14px; }
@media (max-width: 800px) {
  .admin-side {
    position: static;
    width: auto;
    flex-direction: row;
    flex-wrap: wrap;
    border-right: 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .side-logout { margin-top: 0; width: auto; }
  body.admin-app main.dashboard-card,
  body.admin-app main.auth-card { margin-left: 0; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .board-head { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 720px) {
  .chart-grid { grid-template-columns: 1fr; }
  .user-head { display: none; }
  .user-row { grid-template-columns: 1fr 1fr; }
}