:root {
  color-scheme: light;
  --bg: #f5f6f3;
  --surface: #ffffff;
  --ink: #19211f;
  --muted: #66736d;
  --line: #d9ded8;
  --brand: #0f6b54;
  --brand-dark: #0a4c3c;
  --danger: #b42318;
  --warning: #996a13;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--bg);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans SC", Arial, sans-serif;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px max(20px, calc((100vw - 1060px) / 2));
  background: rgba(245, 246, 243, 0.92);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.brand {
  color: var(--ink);
  font-size: 22px;
  font-weight: 800;
  text-decoration: none;
}

.tagline {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.page {
  width: min(1060px, calc(100% - 40px));
  margin: 0 auto;
  padding: 28px 0 56px;
}

.article-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.panel,
.article-card,
.modal-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 12px 28px rgba(30, 41, 35, 0.06);
}

.article-card {
  display: grid;
  gap: 12px;
  min-height: 210px;
  padding: 22px;
}

.article-card h2,
.article-detail h1,
.panel h2,
.modal-card h2 {
  margin: 0;
  line-height: 1.25;
}

.article-card p,
.muted {
  color: var(--muted);
}

.article-card p {
  margin: 0;
  line-height: 1.7;
}

.badge-row,
.actions,
.toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 3px 10px;
  border-radius: 999px;
  color: var(--brand-dark);
  background: #e4f3ee;
  font-size: 13px;
  font-weight: 700;
}

.badge.paid {
  color: #7a4d05;
  background: #fff0ca;
}

.primary-button,
.secondary-button,
.ghost-button,
.danger-button,
.warn-button {
  min-height: 40px;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 9px 14px;
  text-decoration: none;
}

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

.secondary-button,
.ghost-button {
  color: var(--ink);
  background: #e8ede8;
}

.ghost-button {
  border-color: var(--line);
  background: #fff;
}

.danger-button {
  color: #fff;
  background: var(--danger);
}

.warn-button {
  color: #fff;
  background: var(--warning);
}

.article-detail {
  display: grid;
  gap: 18px;
}

.article-content {
  padding: 26px;
  white-space: pre-wrap;
  line-height: 1.9;
  font-size: 17px;
}

.pay-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 18px;
}

.panel {
  padding: 20px;
}

.qr-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.qr-box {
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: center;
}

.qr-box img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  border-radius: 6px;
  background: #f0f2ef;
}

.form-grid {
  display: grid;
  gap: 12px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 14px;
}

input,
select,
textarea {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 11px;
  color: var(--ink);
  background: #fff;
}

textarea {
  min-height: 140px;
  resize: vertical;
}

.notice {
  padding: 12px;
  border-radius: 6px;
  color: var(--brand-dark);
  background: #e4f3ee;
  line-height: 1.7;
}

.notice:empty {
  display: none;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(16, 24, 20, 0.42);
}

.modal.hidden,
.hidden {
  display: none;
}

.modal-card {
  position: relative;
  display: grid;
  gap: 14px;
  width: min(480px, 100%);
  padding: 24px;
}

.icon-button {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 50%;
  background: #edf1ed;
  font-size: 22px;
  line-height: 1;
}

.admin-body {
  background: #eef1ed;
}

.admin-shell {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100vh;
}

.admin-sidebar {
  padding: 22px 14px;
  color: #fff;
  background: #10231d;
}

.admin-sidebar h1 {
  margin: 0 0 22px;
  font-size: 20px;
}

.admin-nav {
  display: grid;
  gap: 8px;
}

.admin-nav button {
  min-height: 40px;
  border: 0;
  border-radius: 6px;
  color: #dce6df;
  background: transparent;
  text-align: left;
}

.admin-nav button.active,
.admin-nav button:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.12);
}

.admin-main {
  min-width: 0;
  padding: 24px;
}

.admin-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 18px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.stat {
  padding: 18px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.stat strong {
  display: block;
  font-size: 26px;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  min-width: 820px;
  border-collapse: collapse;
}

th,
td {
  padding: 11px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  font-size: 14px;
}

th {
  color: var(--muted);
  background: #f7f8f6;
}

.editor-grid {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 16px;
}

@media (max-width: 860px) {
  .article-grid,
  .pay-layout,
  .qr-grid,
  .admin-shell,
  .cards,
  .editor-grid {
    grid-template-columns: 1fr;
  }

  .site-header,
  .admin-topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .admin-sidebar {
    padding: 16px;
  }
}