/* ==================== 变量 ==================== */
:root {
  --bg-darkest: #120a06;
  --bg-dark: #1a0f0a;
  --bg-mid: #241510;
  --bg-light: #2e1d14;
  --bg-card: #1e120c;

  --gold: #d4a04a;
  --gold-bright: #e8b563;
  --gold-dim: #9a7838;
  --gold-faint: #5c4828;

  --red: #c8392f;
  --red-dark: #9a2a22;
  --red-bright: #e04938;
  --red-glow: rgba(200, 57, 47, 0.25);

  --text-main: #f5e6c8;
  --text-dim: #a8927a;
  --text-faint: #6b5a48;
  --text-bright: #fff5e0;

  --border-gold: rgba(212, 160, 74, 0.25);
  --border-red: rgba(200, 57, 47, 0.3);

  --shadow-deep: 0 8px 40px rgba(0, 0, 0, 0.5);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Noto Serif SC', 'Songti SC', serif;
  background: var(--bg-darkest);
  color: var(--text-main);
  line-height: 1.8;
  letter-spacing: 0.02em;
  overflow: hidden;
  height: 100vh;
}

::selection { background: var(--red); color: var(--text-bright); }

/* ==================== 登录页 ==================== */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(200, 57, 47, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(212, 160, 74, 0.05) 0%, transparent 50%),
    var(--bg-darkest);
}

.login-card {
  width: 100%;
  max-width: 420px;
  padding: 2.5rem 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: 16px;
  box-shadow: var(--shadow-deep), 0 0 50px var(--lantern-glow);
  text-align: center;
}

.login-card-header {
  margin-bottom: 2.5rem;
}
.login-card-title {
  font-family: 'Ma Shan Zheng', serif;
  font-size: 2.2rem;
  color: var(--gold-bright);
  letter-spacing: 0.3em;
  text-shadow: 0 0 30px rgba(212, 160, 74, 0.4);
  margin-bottom: 0.5rem;
}
.login-card-subtitle {
  color: var(--text-dim);
  font-size: 0.9rem;
  letter-spacing: 0.3em;
  font-weight: 300;
}

.login-card-form {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}
.login-card-field {
  text-align: left;
}
.login-card-label {
  display: block;
  color: var(--text-dim);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}
.login-card-input {
  width: 100%;
  background: var(--bg-mid);
  border: 1px solid var(--border-gold);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.95rem;
  padding: 0.8rem 1rem;
  border-radius: 4px;
  transition: all var(--transition);
}
.login-card-input:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 15px rgba(212, 160, 74, 0.2);
}
.login-card-input::placeholder {
  color: var(--text-faint);
  font-size: 0.85rem;
}
.login-card-error {
  min-height: 1.2rem;
  font-size: 0.8rem;
  color: var(--red-bright);
  letter-spacing: 0.1em;
}
.login-card-submit {
  padding: 0.9rem;
  background: linear-gradient(135deg, var(--gold-dim), var(--gold));
  border: none;
  color: var(--bg-darkest);
  font-family: 'Ma Shan Zheng', serif;
  font-size: 1.2rem;
  letter-spacing: 0.4em;
  cursor: pointer;
  border-radius: 4px;
  transition: all var(--transition);
  font-weight: 700;
}
.login-card-submit:hover {
  background: linear-gradient(135deg, var(--gold), var(--gold-bright));
  box-shadow: 0 0 25px rgba(212, 160, 74, 0.4);
  transform: translateY(-1px);
}

/* ==================== 管理后台布局 ==================== */
.admin-dashboard {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

/* 侧边栏 */
.admin-sidebar {
  width: 220px;
  background: var(--bg-dark);
  border-right: 1px solid var(--border-gold);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}
.admin-sidebar-header {
  padding: 1.5rem 1.2rem;
  border-bottom: 1px solid var(--border-gold);
  text-align: center;
}
.admin-sidebar-title {
  font-family: 'Ma Shan Zheng', serif;
  font-size: 1.3rem;
  color: var(--gold-bright);
  letter-spacing: 0.15em;
  margin-bottom: 0.3rem;
}
.admin-sidebar-subtitle {
  color: var(--text-faint);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
}

.admin-sidebar-nav {
  flex: 1;
  padding: 1rem 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  overflow-y: auto;
}
.admin-nav-item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.6rem 1rem;
  background: transparent;
  border: none;
  border-radius: 6px;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all var(--transition);
  text-align: left;
}
.admin-nav-item:hover {
  background: rgba(212, 160, 74, 0.08);
  color: var(--gold);
}
.admin-nav-item.active {
  background: rgba(212, 160, 74, 0.15);
  color: var(--gold-bright);
  border-left: 2px solid var(--gold);
}
.admin-nav-item svg {
  flex-shrink: 0;
  opacity: 0.7;
}
.admin-nav-item.active svg { opacity: 1; }

.admin-sidebar-footer {
  padding: 1rem 1.2rem;
  border-top: 1px solid var(--border-gold);
}
.admin-logout-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.6rem 1rem;
  background: transparent;
  border: 1px solid var(--border-red);
  border-radius: 6px;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all var(--transition);
}
.admin-logout-btn:hover {
  background: rgba(200, 57, 47, 0.1);
  color: var(--red-bright);
  border-color: var(--red);
}

/* 主内容区 */
.admin-main {
  flex: 1;
  overflow-y: auto;
  padding: 2rem;
  background: var(--bg-darkest);
}

.admin-tab {
  display: none;
}
.admin-tab.active {
  display: block;
  animation: tabFadeIn 0.3s ease;
}

.admin-tab-title {
  font-size: 1.5rem;
  color: var(--gold-bright);
  letter-spacing: 0.15em;
  margin-bottom: 1.5rem;
  font-weight: 500;
}

/* 统计卡片 */
.admin-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}
.admin-stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: 8px;
  padding: 1.2rem;
  text-align: center;
  transition: all var(--transition);
}
.admin-stat-card:hover {
  border-color: var(--gold-dim);
  box-shadow: 0 0 20px rgba(212, 160, 74, 0.1);
  transform: translateY(-2px);
}
.admin-stat-icon {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}
.admin-stat-num {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--gold-bright);
  line-height: 1.2;
}
.admin-stat-label {
  font-size: 0.75rem;
  color: var(--text-faint);
  letter-spacing: 0.1em;
  margin-top: 0.3rem;
}

/* 面板 */
.admin-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-gold);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.admin-panel-title {
  font-size: 1.1rem;
  color: var(--gold);
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--border-gold);
}
.admin-panel-hint {
  color: var(--text-faint);
  font-size: 0.8rem;
  margin-top: 1rem;
  letter-spacing: 0.05em;
}

/* 表格 */
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.admin-table th {
  text-align: left;
  padding: 0.6rem 0.8rem;
  color: var(--gold);
  font-weight: 500;
  border-bottom: 1px solid var(--border-gold);
  letter-spacing: 0.05em;
  white-space: nowrap;
}
.admin-table td {
  padding: 0.6rem 0.8rem;
  color: var(--text-dim);
  border-bottom: 1px solid rgba(212, 160, 74, 0.1);
  word-break: break-all;
}
.admin-table tr:hover td {
  color: var(--text-main);
}
.admin-table code {
  background: var(--bg-mid);
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
  font-family: monospace;
  font-size: 0.8rem;
  color: var(--gold-bright);
  letter-spacing: 0.05em;
}

.admin-password-table-wrap {
  max-height: 400px;
  overflow-y: auto;
}

/* 编辑表单 */
.admin-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}
.admin-form-group {
  margin-bottom: 1rem;
}
.admin-form-group label {
  display: block;
  color: var(--text-dim);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  margin-bottom: 0.4rem;
}
.admin-form-group input,
.admin-form-group textarea,
.admin-form-group select {
  width: 100%;
  background: var(--bg-mid);
  border: 1px solid var(--border-gold);
  color: var(--text-main);
  font-family: inherit;
  font-size: 0.85rem;
  padding: 0.6rem 0.8rem;
  border-radius: 4px;
  transition: all var(--transition);
}
.admin-form-group input:focus,
.admin-form-group textarea:focus,
.admin-form-group select:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 10px rgba(212, 160, 74, 0.15);
}
.admin-form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.admin-form-actions {
  display: flex;
  gap: 0.8rem;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-gold);
}
.admin-btn {
  padding: 0.5rem 1.2rem;
  border: 1px solid var(--border-gold);
  background: transparent;
  color: var(--gold);
  font-family: inherit;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  cursor: pointer;
  border-radius: 4px;
  transition: all var(--transition);
}
.admin-btn:hover {
  border-color: var(--gold);
  background: rgba(212, 160, 74, 0.1);
  color: var(--gold-bright);
}
.admin-btn-primary {
  background: linear-gradient(135deg, var(--gold-dim), var(--gold));
  border: none;
  color: var(--bg-darkest);
  font-weight: 700;
}
.admin-btn-primary:hover {
  background: linear-gradient(135deg, var(--gold), var(--gold-bright));
  box-shadow: 0 0 15px rgba(212, 160, 74, 0.3);
}
.admin-btn-danger {
  border-color: var(--border-red);
  color: var(--red-bright);
}
.admin-btn-danger:hover {
  background: rgba(200, 57, 47, 0.1);
  border-color: var(--red);
}

/* 列表项 */
.admin-list-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem;
  background: var(--bg-mid);
  border: 1px solid rgba(212, 160, 74, 0.1);
  border-radius: 6px;
  margin-bottom: 0.5rem;
  transition: all var(--transition);
}
.admin-list-item:hover {
  border-color: var(--border-gold);
  box-shadow: 0 0 10px rgba(212, 160, 74, 0.05);
}
.admin-list-item-img {
  width: 60px;
  height: 60px;
  border-radius: 4px;
  object-fit: cover;
  border: 1px solid var(--border-gold);
  flex-shrink: 0;
}
.admin-list-item-info {
  flex: 1;
  min-width: 0;
}
.admin-list-item-title {
  font-size: 0.9rem;
  color: var(--text-main);
  margin-bottom: 0.2rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.admin-list-item-desc {
  font-size: 0.75rem;
  color: var(--text-faint);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.admin-list-item-actions {
  display: flex;
  gap: 0.4rem;
  flex-shrink: 0;
}
.admin-list-item-btn {
  padding: 0.3rem 0.6rem;
  background: transparent;
  border: 1px solid var(--border-gold);
  color: var(--text-dim);
  font-family: inherit;
  font-size: 0.75rem;
  cursor: pointer;
  border-radius: 3px;
  transition: all var(--transition);
}
.admin-list-item-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
  background: rgba(212, 160, 74, 0.08);
}
.admin-list-item-btn.delete:hover {
  border-color: var(--red);
  color: var(--red-bright);
  background: rgba(200, 57, 47, 0.08);
}

/* Toast */
.admin-toast-container {
  position: fixed;
  top: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}
.admin-toast {
  background: rgba(26, 15, 10, 0.95);
  border: 1px solid var(--gold-dim);
  color: var(--text-main);
  padding: 0.8rem 1.5rem;
  border-radius: 8px;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  box-shadow: var(--shadow-deep), 0 0 20px rgba(212, 160, 74, 0.1);
  backdrop-filter: blur(10px);
  animation: toastSlideDown 0.4s ease, toastFadeOut 0.4s ease 2.5s forwards;
}
.admin-toast.success { border-color: var(--gold); color: var(--gold-bright); }
.admin-toast.error { border-color: var(--red); color: var(--red-bright); }

@keyframes toastSlideDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes toastFadeOut {
  to { opacity: 0; transform: translateY(-10px); }
}
@keyframes tabFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* 滚动条 */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--gold-dim); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold); }

/* 响应式 */
@media (max-width: 768px) {
  .admin-sidebar { width: 60px; }
  .admin-sidebar-header { padding: 1rem 0.5rem; }
  .admin-sidebar-title { font-size: 0.9rem; }
  .admin-sidebar-subtitle { display: none; }
  .admin-nav-item { padding: 0.6rem; justify-content: center; }
  .admin-nav-item span { display: none; }
  .admin-main { padding: 1rem; }
  .admin-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .admin-form-row { grid-template-columns: 1fr; }
  .login-card { max-width: 90%; padding: 2rem 1.5rem; }
}