/* ===== 后台管理通用样式 ===== */
:root {
    --bg: #f0f2f5;
    --sidebar: #1a1d29;
    --sidebar-hover: #2a2e3d;
    --sidebar-active: #c9a961;
    --primary: #c9a961;
    --primary-dark: #b8964f;
    --text: #333;
    --text-light: #666;
    --text-lighter: #999;
    --border: #e8e8e8;
    --white: #fff;
    --success: #52c41a;
    --warning: #faad14;
    --danger: #ff4d4f;
    --info: #1890ff;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
}

/* ===== Login Page ===== */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1d29 0%, #2d2a3e 50%, #1a1d29 100%);
    position: relative;
    overflow: hidden;
}
.login-wrapper::before {
    content: '';
    position: absolute;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(201,169,97,0.1) 0%, transparent 70%);
    top: -200px; right: -100px;
    border-radius: 50%;
}
.login-box {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    padding: 50px 40px;
    width: 400px;
    position: relative;
    z-index: 1;
}
.login-box .logo {
    text-align: center;
    margin-bottom: 40px;
}
.login-box .logo h1 {
    color: var(--primary);
    font-size: 28px;
    letter-spacing: 2px;
    font-weight: 600;
}
.login-box .logo p {
    color: rgba(255,255,255,0.4);
    font-size: 12px;
    letter-spacing: 4px;
    margin-top: 6px;
}
.login-box .form-group {
    margin-bottom: 24px;
}
.login-box .form-group label {
    display: block;
    color: rgba(255,255,255,0.6);
    font-size: 13px;
    margin-bottom: 8px;
}
.login-box .form-group input {
    width: 100%;
    background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    padding: 14px 16px;
    color: #fff;
    font-size: 15px;
    outline: none;
    transition: border-color 0.3s;
}
.login-box .form-group input:focus {
    border-color: var(--primary);
}
.login-box .form-group input::placeholder { color: rgba(255,255,255,0.3); }
.login-box .btn-login {
    width: 100%;
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 14px;
    border-radius: 8px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s;
    letter-spacing: 2px;
}
.login-box .btn-login:hover { background: var(--primary-dark); }
.login-hint {
    text-align: center;
    color: rgba(255,255,255,0.3);
    font-size: 12px;
    margin-top: 20px;
}

/* ===== Layout ===== */
.layout { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
    width: 220px;
    background: var(--sidebar);
    color: rgba(255,255,255,0.65);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 100;
    transition: width 0.3s;
}
.sidebar-logo {
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    color: var(--primary);
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 1px;
    white-space: nowrap;
    overflow: hidden;
}
.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 12px 0;
}
.sidebar-nav .nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 13px 24px;
    cursor: pointer;
    transition: all 0.2s;
    border-left: 3px solid transparent;
    white-space: nowrap;
    overflow: hidden;
    text-decoration: none;
    color: rgba(255,255,255,0.65);
    font-size: 14px;
}
.sidebar-nav .nav-item:hover {
    background: var(--sidebar-hover);
    color: #fff;
}
.sidebar-nav .nav-item.active {
    background: var(--sidebar-hover);
    color: var(--primary);
    border-left-color: var(--primary);
}
.sidebar-nav .nav-item .nav-icon { font-size: 18px; width: 20px; text-align: center; }
.sidebar-nav .nav-group-title {
    padding: 20px 24px 8px;
    font-size: 11px;
    color: rgba(255,255,255,0.3);
    letter-spacing: 1px;
    text-transform: uppercase;
}
.sidebar-user {
    padding: 16px 20px;
    border-top: 1px solid rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    gap: 10px;
}
.sidebar-user .user-avatar {
    width: 36px; height: 36px;
    border-radius: 50%;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 600;
}
.sidebar-user .user-info { flex: 1; overflow: hidden; }
.sidebar-user .user-name { color: #fff; font-size: 13px; }
.sidebar-user .user-role { color: rgba(255,255,255,0.4); font-size: 11px; }
.sidebar-user .logout-btn {
    color: rgba(255,255,255,0.4);
    cursor: pointer;
    font-size: 16px;
}
.sidebar-user .logout-btn:hover { color: var(--danger); }
.sidebar-user .user-actions { display: flex; align-items: center; gap: 10px; }
.sidebar-user .icon-btn {
    color: rgba(255,255,255,0.45);
    cursor: pointer;
    font-size: 15px;
    line-height: 1;
    transition: color .2s;
}
.sidebar-user .icon-btn:hover { color: #fff; }

/* Main Content */
.main {
    flex: 1;
    margin-left: 220px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
.main-header {
    height: 64px;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 50;
}
.main-header .page-title {
    font-size: 18px;
    font-weight: 600;
}
.main-header .header-actions { display: flex; gap: 16px; align-items: center; }
.main-content {
    flex: 1;
    padding: 24px;
}

/* ===== Cards & Stats ===== */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--white);
    border-radius: 8px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: box-shadow 0.3s;
}
.stat-card:hover { box-shadow: 0 4px 20px rgba(0,0,0,0.08); }
.stat-card .stat-icon {
    width: 56px; height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
}
.stat-card .stat-info .stat-label { color: var(--text-lighter); font-size: 13px; }
.stat-card .stat-info .stat-value { font-size: 26px; font-weight: 700; margin-top: 4px; }

/* ===== Panel ===== */
.panel {
    background: var(--white);
    border-radius: 8px;
    margin-bottom: 16px;
    overflow: hidden;
}
.panel-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.panel-header .panel-title { font-size: 16px; font-weight: 600; }
.panel-body { padding: 20px; }

/* ===== Tables ===== */
.table-wrapper { overflow-x: auto; }
table.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}
table.data-table th {
    background: #fafafa;
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    color: var(--text-light);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
table.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}
table.data-table tr:hover td { background: #fafafa; }
table.data-table .empty-row td { text-align: center; color: var(--text-lighter); padding: 40px; }

/* ===== Tags & Badges ===== */
.tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 12px;
    line-height: 1.5;
}
.tag-success { background: #f6ffed; color: var(--success); border: 1px solid #d9f7be; }
.tag-warning { background: #fffbe6; color: var(--warning); border: 1px solid #ffe58f; }
.tag-danger { background: #fff2f0; color: var(--danger); border: 1px solid #ffccc7; }
.tag-info { background: #e6f7ff; color: var(--info); border: 1px solid #91d5ff; }
.tag-default { background: #fafafa; color: var(--text-light); border: 1px solid var(--border); }
.tag-gold { background: #fffbe6; color: var(--primary); border: 1px solid #ffe58f; }

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 8px 16px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--white);
    color: var(--text);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    white-space: nowrap;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn-primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-danger { color: var(--danger); border-color: #ffccc7; }
.btn-danger:hover { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-link { padding: 0; border: none; background: none; color: var(--primary); }
.btn-link:hover { text-decoration: underline; }

/* ===== Forms ===== */
.form-row { display: flex; gap: 16px; margin-bottom: 16px; flex-wrap: wrap; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 500; color: var(--text); }
.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--primary);
}
.form-group textarea { resize: vertical; min-height: 80px; }
.form-inline { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.form-inline .form-group { margin-bottom: 0; }

/* ===== Search Bar ===== */
.search-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    align-items: center;
    flex-wrap: wrap;
}
.search-bar input, .search-bar select {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
    outline: none;
}

/* ===== Pagination ===== */
.pagination {
    display: flex;
    gap: 6px;
    justify-content: center;
    margin-top: 20px;
    align-items: center;
}
.pagination button {
    padding: 6px 12px;
    border: 1px solid var(--border);
    background: var(--white);
    border-radius: 4px;
    cursor: pointer;
    font-size: 13px;
}
.pagination button:hover { border-color: var(--primary); color: var(--primary); }
.pagination button.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination button:disabled { opacity: 0.4; cursor: not-allowed; }
.pagination .page-info { color: var(--text-lighter); font-size: 13px; margin: 0 8px; }

/* ===== Modal ===== */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.45);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}
.modal-overlay.show { display: flex; }
.modal {
    background: var(--white);
    border-radius: 8px;
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.modal.modal-lg { max-width: 900px; }
.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.modal-header h3 { font-size: 16px; }
.modal-close { font-size: 22px; cursor: pointer; color: var(--text-lighter); line-height: 1; }
.modal-close:hover { color: var(--text); }
.modal-body { padding: 20px; overflow-y: auto; flex: 1; }
.modal-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

/* ===== Misc ===== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-primary { color: var(--primary); }
.text-muted { color: var(--text-lighter); }
.font-bold { font-weight: 600; }
.mt-16 { margin-top: 16px; }
.mb-16 { margin-bottom: 16px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.img-thumb { width: 50px; height: 50px; object-fit: cover; border-radius: 4px; }
.img-list { display: flex; gap: 8px; flex-wrap: wrap; }
.img-list img { width: 60px; height: 60px; object-fit: cover; border-radius: 4px; }

/* Toast */
.toast {
    position: fixed;
    top: 80px;
    right: 24px;
    z-index: 2000;
    background: var(--white);
    border-radius: 8px;
    padding: 12px 20px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    gap: 8px;
    transform: translateX(400px);
    transition: transform 0.3s;
}
.toast.show { transform: translateX(0); }
.toast.success { border-left: 4px solid var(--success); }
.toast.error { border-left: 4px solid var(--danger); }