/* ========== 管理后台样式 ========== */

:root {
    --admin-primary: #c4a882;
    --admin-primary-hover: #b09470;
    --admin-danger: #e74c3c;
    --admin-danger-hover: #c0392b;
    --admin-success: #27ae60;
    --admin-bg: #f5f5f5;
    --admin-card: #fff;
    --admin-text: #333;
    --admin-text-light: #666;
    --admin-border: #e0e0e0;
    --admin-shadow: 0 2px 10px rgba(0,0,0,0.06);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--admin-bg);
    color: var(--admin-text);
}

/* ===== 顶部导航 ===== */
.admin-header {
    background: var(--admin-card);
    padding: 0 30px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: var(--admin-shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.admin-header h1 {
    font-size: 18px;
    font-weight: 500;
    color: var(--admin-primary);
}

.admin-header-actions {
    display: flex;
    gap: 12px;
    align-items: center;
}

.admin-header-actions a,
.admin-header-actions button {
    font-size: 13px;
    color: var(--admin-text-light);
    text-decoration: none;
    cursor: pointer;
    border: none;
    background: none;
    padding: 6px 12px;
    border-radius: 4px;
    transition: all 0.2s;
}

.admin-header-actions a:hover,
.admin-header-actions button:hover {
    background: #f0f0f0;
    color: var(--admin-text);
}

/* ===== 登录页面 ===== */
.login-container {
    max-width: 380px;
    margin: 120px auto;
    padding: 40px;
    background: var(--admin-card);
    border-radius: 12px;
    box-shadow: var(--admin-shadow);
    text-align: center;
}

.login-container h2 {
    font-size: 22px;
    margin-bottom: 30px;
    color: var(--admin-primary);
    font-weight: 400;
}

.login-container input {
    width: 100%;
    height: 44px;
    padding: 0 16px;
    border: 1px solid var(--admin-border);
    border-radius: 8px;
    font-size: 14px;
    outline: none;
    margin-bottom: 20px;
    transition: border-color 0.2s;
}

.login-container input:focus {
    border-color: var(--admin-primary);
}

.login-container .btn-login {
    width: 100%;
    height: 44px;
    border: none;
    border-radius: 8px;
    background: var(--admin-primary);
    color: #fff;
    font-size: 15px;
    cursor: pointer;
    transition: background 0.2s;
}

.login-container .btn-login:hover {
    background: var(--admin-primary-hover);
}

/* ===== 主内容 ===== */
.admin-body {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
}

/* ===== 侧边标签页 ===== */
.admin-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    border-bottom: 1px solid var(--admin-border);
    padding-bottom: 0;
}

.admin-tab {
    padding: 10px 20px;
    font-size: 14px;
    color: var(--admin-text-light);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
    background: none;
    border-top: none;
    border-left: none;
    border-right: none;
}

.admin-tab:hover {
    color: var(--admin-primary);
}

.admin-tab.active {
    color: var(--admin-primary);
    border-bottom-color: var(--admin-primary);
    font-weight: 500;
}

/* ===== 面板 ===== */
.admin-panel {
    display: none;
    background: var(--admin-card);
    border-radius: 10px;
    box-shadow: var(--admin-shadow);
    padding: 24px;
}

.admin-panel.active {
    display: block;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.panel-header h3 {
    font-size: 16px;
    font-weight: 500;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

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

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

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

.btn-danger:hover {
    background: var(--admin-danger-hover);
}

.btn-sm {
    padding: 5px 10px;
    font-size: 12px;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--admin-border);
    color: var(--admin-text-light);
}

.btn-outline:hover {
    border-color: var(--admin-primary);
    color: var(--admin-primary);
}

/* ===== 表格 ===== */
.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid #f0f0f0;
    font-size: 13px;
}

.admin-table th {
    font-weight: 500;
    color: var(--admin-text-light);
    background: #fafafa;
}

.admin-table tr:hover {
    background: #fafafa;
}

.admin-table .actions {
    display: flex;
    gap: 8px;
}

.admin-table .site-icon-preview {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    object-fit: contain;
    vertical-align: middle;
}

.admin-table .site-icon-mini {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    color: #fff;
    font-weight: 600;
    vertical-align: middle;
}

/* ===== 模态框 ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-overlay.show {
    display: flex;
}

.modal {
    background: var(--admin-card);
    border-radius: 12px;
    width: 500px;
    max-width: 90vw;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0,0,0,0.15);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid #f0f0f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: 16px;
    font-weight: 500;
}

.modal-close {
    width: 30px;
    height: 30px;
    border: none;
    background: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--admin-text-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: #f0f0f0;
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid #f0f0f0;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* ===== 表单 ===== */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 13px;
    color: var(--admin-text-light);
    margin-bottom: 6px;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    height: 40px;
    padding: 0 12px;
    border: 1px solid var(--admin-border);
    border-radius: 6px;
    font-size: 13px;
    outline: none;
    transition: border-color 0.2s;
}

.form-group textarea {
    height: 80px;
    padding: 10px 12px;
    resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--admin-primary);
}

.form-group input[type="file"] {
    padding: 8px 12px;
    height: auto;
}

.form-hint {
    font-size: 11px;
    color: #999;
    margin-top: 4px;
}

/* ===== 消息提示 ===== */
.toast {
    position: fixed;
    top: 70px;
    right: 20px;
    padding: 12px 20px;
    border-radius: 8px;
    color: #fff;
    font-size: 13px;
    z-index: 2000;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.3s;
    max-width: 300px;
}

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

.toast-success { background: var(--admin-success); }
.toast-error { background: var(--admin-danger); }

/* ===== 设置页面 ===== */
.settings-form {
    max-width: 600px;
}

.settings-form .form-group {
    margin-bottom: 22px;
}

.current-bg-preview {
    max-width: 200px;
    max-height: 120px;
    border-radius: 6px;
    margin-top: 8px;
    border: 1px solid var(--admin-border);
}

/* ===== 空状态 ===== */
.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--admin-text-light);
}

.empty-state p {
    font-size: 14px;
}