:root {
  --bg: #eceff3;
  --card: #ffffff;
  --line: #d7dde5;
  --text: #16253d;
  --muted: #8997ac;
  --brand: #17b57c;
  --brand-dark: #129063;
  --danger: #e34f4f;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 15px;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: 0.9rem;
  line-height: 1.45;
  background: var(--bg);
  color: var(--text);
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1280px, 94vw);
  margin: 0 auto;
}

.topbar {
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.topbar-inner {
  min-height: 58px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 8px 0;
}

.brand {
  font-size: clamp(1.1rem, 1.8vw, 1.5rem);
  font-weight: 800;
  color: #122745;
  white-space: nowrap;
}

.menu {
  margin-left: 18px;
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.menu a {
  padding: 6px 10px;
  border-radius: 6px;
  color: #253b5a;
  font-size: 0.86rem;
}

.menu a:hover {
  background: #edf6f2;
  color: var(--brand-dark);
}

.topbar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 0.9rem;
}

.balance {
  color: #f39b1e;
  font-weight: 700;
}

.username {
  font-weight: 700;
}

.page {
  padding: 18px 0 24px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 16px;
}

.hero {
  margin-bottom: 14px;
}

h1 {
  margin: 0 0 8px;
  font-size: clamp(1.25rem, 1.8vw, 1.65rem);
}

h2 {
  margin: 0 0 8px;
  font-size: clamp(1.02rem, 1.35vw, 1.2rem);
}

h3 {
  margin: 0;
  font-size: clamp(1.15rem, 1.6vw, 1.45rem);
}

.muted {
  color: var(--muted);
  font-size: 0.92rem;
}

.hint {
  color: #8190a7;
  font-size: 0.88rem;
}

.flash {
  margin-bottom: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 0.92rem;
}

.flash.success {
  background: #e8f8ef;
  color: #0a8d4b;
  border: 1px solid #c1ebd4;
}

.flash.error {
  background: #ffecec;
  color: #c42626;
  border: 1px solid #f2b6b6;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.stats-grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stat p {
  color: var(--muted);
  margin: 10px 0 0;
  font-size: 0.9rem;
}

.ok {
  color: var(--brand);
}

.warn {
  color: var(--danger);
}

.money {
  color: #f29a0e;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 14px;
}

.card-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
}

.table th,
.table td {
  border-bottom: 1px solid #e9edf3;
  padding: 8px 6px;
  text-align: left;
  vertical-align: top;
}

.table th {
  color: #7486a2;
  font-weight: 700;
  white-space: nowrap;
}

.table code {
  background: #f0f3f8;
  padding: 2px 6px;
  border-radius: 6px;
  font-family: Consolas, monospace;
  font-size: 0.82rem;
}

.tag {
  display: inline-block;
  color: #0a8f4c;
  background: #e8f8ef;
  border: 1px solid #c1ebd4;
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.82rem;
}

.tag.off {
  color: #6f8099;
  background: #f0f3f8;
  border-color: #d9e0ea;
}

.plus {
  color: #0f9f52;
  font-weight: 700;
}

.minus {
  color: #d24646;
  font-weight: 700;
}

.page-head {
  margin-bottom: 12px;
}

.page-head.center {
  text-align: center;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.app-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.price {
  color: #f29a0e;
  font-size: clamp(1.2rem, 2vw, 1.7rem);
  font-weight: 700;
}

.btn {
  border: 0;
  background: #eff3f9;
  color: #1e324f;
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.86rem;
}

.btn:hover {
  filter: brightness(0.97);
}

.btn-primary {
  background: var(--brand);
  color: #fff;
}

.btn-primary:hover {
  background: var(--brand-dark);
}

.btn-light {
  background: #f2f5f9;
}

.btn-small {
  font-size: 0.82rem;
  padding: 6px 10px;
}

.auth-wrap {
  min-height: calc(100vh - 170px);
  display: grid;
  place-items: center;
}

.auth-card {
  width: min(460px, 92vw);
}

.install-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 16px;
}

.install-card {
  width: min(760px, 95vw);
}

.install-grid {
  grid-template-columns: 150px 1fr;
  gap: 10px 12px;
  margin-top: 14px;
}

.install-grid .hint {
  grid-column: 2;
  margin: -4px 0 4px;
}

.install-grid button {
  grid-column: 1 / -1;
  justify-self: start;
  margin-top: 8px;
}

.install-tip {
  border-top: 1px dashed #d9e1ec;
  margin-top: 14px;
  padding-top: 12px;
}

.form-grid {
  display: grid;
  gap: 8px;
}

.form-grid label {
  font-size: 0.9rem;
  color: #607491;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid #ccd5e1;
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 0.9rem;
  background: #fff;
}

input[type="checkbox"] {
  width: auto;
  margin-right: 6px;
  vertical-align: middle;
}

textarea {
  resize: vertical;
}

.inline-form {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  flex-wrap: wrap;
}

.form-card {
  margin-bottom: 12px;
}

.payments-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.payments-toolbar input {
  width: min(360px, 100%);
}

.pay-modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(13, 24, 38, 0.35);
  z-index: 50;
}

.pay-modal {
  position: fixed;
  top: 7vh;
  left: 50%;
  transform: translateX(-50%);
  width: min(780px, 94vw);
  max-height: 86vh;
  overflow: auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 14px;
  z-index: 60;
  box-shadow: 0 14px 35px rgba(16, 34, 59, 0.2);
}

.pay-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 10px;
  margin-bottom: 10px;
  border-bottom: 1px solid #e8edf4;
}

.pay-modal .form-grid {
  grid-template-columns: 160px 1fr;
  gap: 10px 12px;
}

.pay-modal .form-grid > .channel-group {
  grid-column: 1 / -1;
  border: 1px dashed #dae2ee;
  border-radius: 10px;
  padding: 10px;
  background: #fbfcfe;
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 10px 12px;
}

.pay-modal .form-grid > button[type='submit'] {
  grid-column: 1 / -1;
  justify-self: start;
}

.quick-amounts {
  margin-top: 10px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.balance-card {
  background: linear-gradient(145deg, #12a66f, #1bbd83);
  color: #fff;
}

.balance-big {
  font-size: clamp(1.9rem, 3vw, 2.6rem);
  margin: 10px 0 14px;
  font-weight: 700;
}

.mini-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.mini-stats strong {
  display: block;
  font-size: 1.4rem;
}

.mini-stats span {
  opacity: 0.88;
  font-size: 0.85rem;
}

.footer {
  border-top: 1px solid #d3dae4;
  color: #97a4b7;
  text-align: center;
  padding: 12px 0;
  background: #fff;
  font-size: 0.85rem;
}

@media (max-width: 1080px) {
  .stats-grid,
  .stats-grid.four {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .two-col {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(720px, 95vw);
  }

  .topbar-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .menu {
    margin-left: 0;
  }

  .topbar-right {
    margin-left: 0;
  }

  .cards-grid,
  .stats-grid,
  .stats-grid.four {
    grid-template-columns: 1fr;
  }

  .install-grid {
    grid-template-columns: 1fr;
  }

  .install-grid .hint {
    grid-column: 1;
    margin: -2px 0 4px;
  }

  .quick-amounts {
    grid-template-columns: repeat(2, 1fr);
  }

  .table {
    font-size: 0.82rem;
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }

  .pay-modal {
    top: 4vh;
    width: 95vw;
    padding: 12px;
  }

  .pay-modal .form-grid,
  .pay-modal .form-grid > .channel-group {
    grid-template-columns: 1fr;
  }
}