:root {
  --green: #135c3b;
  --blue: #0a2f70;
  --paper: #f8f1e5;
  --line: #e4d3bd;
  --ink: #1d2520;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  background: linear-gradient(135deg, #f8f1e5, #fffaf1 52%, #eef5ef);
}

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

a,
button {
  -webkit-tap-highlight-color: rgba(19, 92, 59, 0.16);
  transition: transform 0.12s ease, box-shadow 0.12s ease, filter 0.12s ease, background-color 0.12s ease;
}

a[href],
button:not(:disabled) {
  cursor: pointer;
}

a[href]:hover,
button:not(:disabled):hover {
  transform: translateY(-1px);
  box-shadow: 0 5px 14px rgba(19, 92, 59, 0.14);
  filter: brightness(1.03);
}

a[href]:focus-visible,
button:not(:disabled):focus-visible {
  outline: 2px solid rgba(19, 92, 59, 0.42);
  outline-offset: 2px;
}

a[href]:active,
button:not(:disabled):active {
  transform: translateY(1px) scale(0.98);
  filter: brightness(0.94);
}

button,
.header-actions a {
  min-height: 38px;
  border: 0;
  border-radius: 6px;
  padding: 8px 15px;
  background: var(--green);
  color: white;
  text-decoration: none;
  cursor: pointer;
}

button.ghost {
  background: white;
  color: var(--green);
  border: 1px solid rgba(19, 92, 59, 0.32);
}

button.secondary {
  background: #f7fbf8;
  color: var(--green);
  border: 1px solid rgba(19, 92, 59, 0.28);
}

.admin-app {
  width: min(1440px, calc(100% - 36px));
  margin: 28px auto;
}

.login-card,
.settings-card,
.editor-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 250, 0.9);
  box-shadow: 0 18px 45px rgba(79, 56, 31, 0.09);
}

.login-card {
  width: min(420px, 100%);
  margin: 120px auto 0;
  padding: 28px;
}

.login-card h1 {
  margin: 0 0 8px;
  color: var(--blue);
}

.login-card p {
  margin: 0 0 20px;
  color: #637067;
  line-height: 1.7;
}

label {
  display: grid;
  gap: 7px;
  margin-bottom: 14px;
  font-weight: 700;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid #cdbfae;
  border-radius: 6px;
  padding: 9px 10px;
  background: white;
  color: var(--ink);
}

textarea {
  resize: vertical;
}

.message {
  min-height: 24px;
  margin-top: 12px;
  color: #b83b2f;
}

.hidden {
  display: none;
}

.hidden-file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

.admin-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 18px;
}

.admin-header h1 {
  margin: 0;
  color: var(--blue);
}

.admin-header p {
  margin: 7px 0 0;
  color: #647066;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.settings-card,
.editor-card {
  padding: 20px;
}

.settings-card h2,
.editor-card h2 {
  margin: 0;
  color: var(--blue);
}

.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 16px;
}

.settings-grid .full {
  grid-column: 1 / -1;
}

.tabs {
  display: flex;
  gap: 8px;
  align-items: center;
  margin: 16px 0;
  overflow-x: auto;
}

.tabs button {
  background: rgba(255, 255, 255, 0.8);
  color: var(--green);
  border: 1px solid rgba(19, 92, 59, 0.28);
  white-space: nowrap;
}

.tabs button.active {
  background: var(--green);
  color: white;
}

.upload-progress {
  display: grid;
  gap: 8px;
  margin: -4px 0 16px;
  border: 1px solid rgba(19, 92, 59, 0.18);
  border-radius: 8px;
  background: rgba(255, 255, 250, 0.86);
  padding: 10px 12px;
}

.upload-progress.hidden {
  display: none;
}

.upload-progress-text {
  color: #435147;
  font-size: 14px;
}

.upload-progress-track {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: #e8eee9;
}

.upload-progress-bar {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: var(--green);
  transition: width 0.18s ease;
}

.editor-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 16px;
}

.editor-title > div:first-child {
  margin-right: auto;
}

.editor-title p {
  margin: 6px 0 0;
  color: #647066;
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid #eadccb;
  border-radius: 8px;
}

table {
  width: 100%;
  min-width: 920px;
  border-collapse: collapse;
  background: white;
}

.message-table {
  min-width: 1040px;
}

th,
td {
  border-bottom: 1px solid #eee4d7;
  padding: 9px;
  text-align: left;
  vertical-align: top;
}

th {
  color: #435147;
  background: #fbf6ec;
  font-size: 14px;
}

td input,
td select,
td textarea {
  min-width: 110px;
}

td textarea {
  min-height: 72px;
  resize: vertical;
}

.message-content {
  max-width: 320px;
  line-height: 1.6;
  white-space: pre-wrap;
}

.row-actions {
  display: flex;
  gap: 6px;
}

.file-picker {
  display: grid;
  gap: 6px;
  min-width: 180px;
}

.file-picker button {
  min-height: 32px;
  padding: 6px 10px;
  background: #f7fbf8;
  color: var(--green);
  border: 1px solid rgba(19, 92, 59, 0.28);
}

.file-current {
  max-width: 220px;
  overflow: hidden;
  color: #526157;
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-current.muted {
  color: #9b9185;
}

.row-actions button {
  min-height: 34px;
  padding: 6px 10px;
}

.row-actions .danger {
  background: #b24337;
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  min-width: 180px;
  padding: 12px 16px;
  border-radius: 6px;
  background: #173a2a;
  color: white;
  opacity: 0;
  transform: translateY(12px);
  transition: 0.2s ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 760px) {
  .admin-app {
    width: min(100% - 20px, 1440px);
    margin: 12px auto;
  }

  .login-card {
    margin-top: 48px;
    padding: 20px;
  }

  .admin-header,
  .editor-title {
    align-items: stretch;
    flex-direction: column;
  }

  .admin-header {
    gap: 12px;
  }

  .admin-header h1 {
    font-size: 26px;
  }

  .header-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .header-actions a,
  .header-actions button,
  .tabs button,
  #addItemBtn {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .settings-card,
  .editor-card {
    padding: 14px;
  }

  .settings-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .settings-grid .full {
    grid-column: auto;
  }

  .tabs {
    margin: 12px 0;
    padding-bottom: 3px;
    scroll-snap-type: x proximity;
  }

  .tabs button {
    scroll-snap-align: start;
  }

  .editor-title {
    gap: 10px;
    margin-bottom: 12px;
  }

  .table-wrap {
    overflow: visible;
    border: 0;
    border-radius: 0;
  }

  table,
  .message-table,
  thead,
  tbody,
  tr,
  td {
    display: block;
    width: 100%;
    min-width: 0;
  }

  thead {
    display: none;
  }

  tbody {
    display: grid;
    gap: 12px;
  }

  tr {
    border: 1px solid #eadccb;
    border-radius: 8px;
    background: white;
    padding: 10px;
  }

  td {
    display: grid;
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 8px;
    align-items: center;
    border-bottom: 1px dashed #eee4d7;
    padding: 7px 0;
  }

  td:last-child {
    border-bottom: 0;
  }

  #itemRows td:nth-child(1)::before { content: "标题"; }
  #itemRows td:nth-child(2)::before { content: "副标题"; }
  #itemRows td:nth-child(3)::before { content: "大小"; }
  #itemRows td:nth-child(4)::before { content: "页数"; }
  #itemRows td:nth-child(5)::before { content: "选择文件"; }
  #itemRows td:nth-child(6)::before { content: "操作"; }
  #messageRows td:nth-child(1)::before { content: "称呼"; }
  #messageRows td:nth-child(2)::before { content: "留言"; }
  #messageRows td:nth-child(3)::before { content: "回复"; }
  #messageRows td:nth-child(4)::before { content: "时间"; }
  #messageRows td:nth-child(5)::before { content: "操作"; }

  td::before {
    color: #526157;
    font-size: 13px;
    font-weight: 700;
  }

  td input,
  td select,
  td textarea,
  .file-picker {
    min-width: 0;
  }

  .file-current,
  .message-content {
    max-width: 100%;
    overflow-wrap: anywhere;
  }

  .row-actions {
    flex-wrap: wrap;
  }

  .row-actions button {
    min-height: 40px;
    flex: 1;
  }

  .toast {
    right: 10px;
    bottom: 10px;
    left: 10px;
    min-width: 0;
  }
}

/* 在线更新卡片样式 */
.update-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: #fdfaf6;
  border: 1px solid #e7d8c5;
  border-left: 4px solid #8d3a2a;
  border-radius: 8px;
  padding: 14px 18px;
  margin-bottom: 20px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.update-card-left {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 1;
}

.update-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: bold;
  padding: 3px 8px;
  border-radius: 4px;
  background: #e2e8f0;
  color: #475569;
  white-space: nowrap;
}

.update-badge.active {
  background: #fef3c7;
  color: #b45309;
}

.update-badge.success {
  background: #dcfce7;
  color: #15803d;
}

.update-badge.pending {
  background: #e0f2fe;
  color: #0369a1;
}

.update-badge.danger {
  background: #fee2e2;
  color: #b91c1c;
}

.update-texts strong {
  display: block;
  font-size: 15px;
  color: #2c251f;
  margin-bottom: 2px;
}

.update-texts p {
  margin: 0;
  font-size: 13px;
  color: #647066;
}

.update-card-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

.update-card-actions button {
  padding: 7px 15px;
  font-size: 13px;
}

/* 系统更新弹窗 */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(28, 20, 12, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1200;
  padding: 16px;
}

.modal-overlay.hidden {
  display: none;
}

.modal-dialog {
  background: #fffdf8;
  border-radius: 12px;
  width: 100%;
  max-width: 580px;
  max-height: 86vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px 6px;
}

.modal-header h3 {
  margin: 0;
  font-size: 19px;
  color: #2c251f;
}

.modal-close {
  background: none;
  border: none;
  font-size: 16px;
  cursor: pointer;
  color: #647066;
  padding: 4px 8px;
}

.modal-close:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.modal-body {
  padding: 8px 20px 14px;
  overflow-y: auto;
  font-size: 14px;
  color: #3c352d;
  line-height: 1.65;
}

.modal-body code {
  background: #f3ead9;
  color: #8d3a2a;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 12px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 10px 20px 18px;
}

.version-compare {
  display: flex;
  align-items: center;
  gap: 14px;
  background: #fdf6ea;
  border: 1px solid #e7d8c5;
  border-radius: 8px;
  padding: 10px 14px;
  margin-bottom: 10px;
  font-size: 13px;
}

.version-compare span {
  display: block;
  color: #94a3b8;
  font-size: 12px;
  margin-bottom: 2px;
}

.version-arrow {
  font-size: 18px;
  color: #8d3a2a;
}

.changelog {
  list-style: none;
  margin: 8px 0;
  padding: 0;
  max-height: 220px;
  overflow-y: auto;
  border: 1px solid #e7d8c5;
  border-radius: 8px;
}

.changelog li {
  display: flex;
  gap: 8px;
  align-items: baseline;
  padding: 7px 10px;
  border-bottom: 1px solid #f1e7d7;
  font-size: 13px;
}

.changelog li:last-child {
  border-bottom: none;
}

.changelog-subject {
  flex: 1;
}

.changelog time {
  color: #94a3b8;
  font-size: 12px;
  white-space: nowrap;
}

.update-loading::before {
  content: "⏳ ";
}

.update-done {
  font-weight: 600;
  color: #15803d;
}

.update-error {
  color: #b91c1c;
}

.update-note {
  color: #b45309;
  font-size: 13px;
}