/* ========================================
   GEO优化系统 - 公共样式
   设计原则：左侧导航深色，右侧内容区浅色
   ======================================== */

/* CSS变量 - 默认浅色主题（配合themes.css使用） */
:root {
    /* 导航栏颜色 - 科技蓝 */
    --nav-bg: linear-gradient(180deg, #1a365d 0%, #1e4976 100%);
    --nav-text: #e0e6ed;
    --nav-active: #00d4ff;
    --nav-hover: rgba(0, 212, 255, 0.15);
    --nav-border: rgba(0, 212, 255, 0.3);

    /* 主色 - 科技蓝 */
    --primary: #0088ff;
    --primary-light: #00d4ff;
    --primary-dark: #0066cc;
    --primary-bg: rgba(0, 136, 255, 0.08);

    /* 功能色 */
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.1);
    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    --danger: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.1);
    --info: #0ea5e9;
    --info-bg: rgba(14, 165, 233, 0.1);

    /* 中性色 */
    --white: #ffffff;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    /* 侧边栏 - 科技蓝渐变 */
    --sidebar-bg: linear-gradient(180deg, #1a365d 0%, #1e4976 100%);
    --sidebar-text: #e0e6ed;
    --sidebar-active: #00d4ff;
    --sidebar-hover: rgba(0, 212, 255, 0.15);

    /* 文字 - 浅色主题 */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;

    /* 边框 */
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;

    /* 背景 - 浅色 */
    --bg-page: #f0f4f8;
    --bg-card: #ffffff;
    --bg-secondary: #f8fafc;

    /* 阴影 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

    /* 圆角 */
    --radius-sm: 4px;
    --radius: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* 过渡 */
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;

    /* 登录页背景 */
    --login-bg: linear-gradient(135deg, #1a365d 0%, #1e4976 50%, #2563eb 100%);
    --login-accent: #00d4ff;
}

/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Microsoft YaHei", sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-page);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
}

ul, ol {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

input, button, textarea, select {
    font-family: inherit;
    font-size: inherit;
    outline: none;
}

/* 通用工具类 */
.clearfix::after {
    content: "";
    display: table;
    clear: both;
}

.flex {
    display: flex;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.flex-1 {
    flex: 1;
}

.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-primary {
    color: var(--primary);
}

.text-success {
    color: var(--success);
}

.text-warning {
    color: var(--warning);
}

.text-danger {
    color: var(--danger);
}

.text-muted {
    color: var(--text-muted);
}

.text-secondary {
    color: var(--text-secondary);
}

.font-bold {
    font-weight: 600;
}

.font-medium {
    font-weight: 500;
}

/* 间距工具类 */
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 4px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mt-5 { margin-top: 20px; }
.mt-6 { margin-top: 24px; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-5 { margin-bottom: 20px; }
.mb-6 { margin-bottom: 24px; }

.ml-1 { margin-left: 4px; }
.ml-2 { margin-left: 8px; }
.ml-3 { margin-left: 12px; }
.ml-4 { margin-left: 16px; }

.mr-1 { margin-right: 4px; }
.mr-2 { margin-right: 8px; }
.mr-3 { margin-right: 12px; }
.mr-4 { margin-right: 16px; }

.p-0 { padding: 0; }
.p-1 { padding: 4px; }
.p-2 { padding: 8px; }
.p-3 { padding: 12px; }
.p-4 { padding: 16px; }
.p-5 { padding: 20px; }
.p-6 { padding: 24px; }

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.5;
    border: 1px solid transparent;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background-color: var(--bg-card);
    color: var(--primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--bg-secondary);
    border-color: var(--primary);
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #34d399 100%);
    color: var(--white);
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.btn-success:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #f87171 100%);
    color: var(--white);
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.btn-danger:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning) 0%, #fbbf24 100%);
    color: var(--white);
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.btn-warning:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.btn-ghost {
    background-color: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-ghost:hover:not(:disabled) {
    background-color: var(--bg-secondary);
    color: var(--primary);
    border-color: var(--primary);
}

.btn-link {
    background-color: transparent;
    color: var(--primary);
    padding: 0;
    border: none;
}

.btn-link:hover:not(:disabled) {
    color: var(--primary-dark);
}

.btn-sm {
    padding: 4px 12px;
    font-size: 12px;
}

.btn-lg {
    padding: 12px 24px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
}

.btn-icon {
    padding: 8px;
}

/* 表单样式 */
.form-group {
    margin-bottom: 16px;
}

.form-label {
    display: block;
    margin-bottom: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-label.required::after {
    content: "*";
    color: var(--danger);
    margin-left: 4px;
}

.form-control {
    display: block;
    width: 100%;
    padding: 8px 12px;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    transition: var(--transition-fast);
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-bg);
}

.form-control:disabled {
    background-color: var(--bg-secondary);
    cursor: not-allowed;
    opacity: 0.6;
}

.form-control::placeholder {
    color: var(--text-muted);
}

.form-control-lg {
    padding: 12px 16px;
    font-size: 16px;
}

.form-hint {
    margin-top: 4px;
    font-size: 12px;
    color: var(--text-muted);
}

.form-error {
    margin-top: 4px;
    font-size: 12px;
    color: var(--danger);
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

select.form-control {
    cursor: pointer;
}

/* 复选框和单选框 */
.form-check {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
    accent-color: var(--primary);
}

/* 卡片样式 */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 20px;
}

.card-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    background-color: rgba(0, 212, 255, 0.05);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

/* 表格样式 */
.table-container {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.table th,
.table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    font-weight: 600;
    color: var(--text-secondary);
    background-color: var(--bg-secondary);
    white-space: nowrap;
}

.table tbody tr:hover {
    background-color: var(--bg-secondary);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* 标签样式 */
.tag {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    font-size: 12px;
    font-weight: 500;
    border-radius: var(--radius-sm);
}

.tag-primary {
    background-color: var(--primary-bg);
    color: var(--primary);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.tag-success {
    background-color: var(--success-bg);
    color: var(--success);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.tag-warning {
    background-color: var(--warning-bg);
    color: var(--warning);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.tag-danger {
    background-color: var(--danger-bg);
    color: var(--danger);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.tag-info {
    background-color: var(--info-bg);
    color: var(--info);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.tag-gray {
    background-color: var(--gray-100);
    color: var(--gray-600);
    border: 1px solid var(--gray-200);
}

/* 徽章样式 */
.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    font-size: 12px;
    font-weight: 500;
    color: var(--white);
    background-color: var(--danger);
    border-radius: 10px;
}

/* 分页样式 */
.pagination {
    display: flex;
    align-items: center;
    gap: 4px;
}

.pagination-item {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    height: 32px;
    padding: 0 8px;
    font-size: 14px;
    color: var(--text-secondary);
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition-fast);
}

.pagination-item:hover:not(.active):not(.disabled) {
    border-color: var(--primary);
    color: var(--primary);
}

.pagination-item.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    border-color: transparent;
    color: var(--white);
}

.pagination-item.disabled {
    color: var(--text-muted);
    cursor: not-allowed;
    opacity: 0.5;
}

/* 空状态 */
.empty-state {
    padding: 60px 20px;
    text-align: center;
}

.empty-state-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 16px;
    color: var(--gray-300);
}

.empty-state-title {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.empty-state-desc {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 20px;
}

/* 加载状态 */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.loading-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Tooltip */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 8px;
    font-size: 12px;
    color: var(--white);
    background-color: var(--gray-800);
    border-radius: var(--radius-sm);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
}

/* 分割线 */
.divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 16px 0;
}

.divider-vertical {
    width: 1px;
    height: 100%;
    background-color: var(--border-color);
}

/* 头像 */
.avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary);
    color: var(--white);
    font-weight: 500;
    overflow: hidden;
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-sm {
    width: 32px;
    height: 32px;
    font-size: 12px;
}

.avatar-lg {
    width: 48px;
    height: 48px;
    font-size: 18px;
}

/* 进度条 */
.progress {
    height: 8px;
    background-color: var(--gray-200);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 4px;
    transition: width 0.3s ease;
}

.progress-bar-success {
    background: linear-gradient(90deg, var(--success) 0%, #34d399 100%);
}

.progress-bar-warning {
    background: linear-gradient(90deg, var(--warning) 0%, #fbbf24 100%);
}

.progress-bar-danger {
    background: linear-gradient(90deg, var(--danger) 0%, #f87171 100%);
}

/* 下拉菜单 */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 160px;
    padding: 4px 0;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-fast);
    z-index: 100;
}

.dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(4px);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    font-size: 14px;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition-fast);
}

.dropdown-item:hover {
    background-color: var(--bg-secondary);
    color: var(--primary);
}

.dropdown-item.danger {
    color: var(--danger);
}

.dropdown-item.danger:hover {
    background-color: var(--danger-bg);
}

.dropdown-divider {
    height: 1px;
    margin: 4px 0;
    background-color: var(--border-color);
}

/* 模态框 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.9);
    transition: var(--transition);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--text-muted);
    border-radius: var(--radius);
    transition: var(--transition-fast);
}

.modal-close:hover {
    background-color: var(--danger-bg);
    color: var(--danger);
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
}

/* Toast提示 */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    min-width: 280px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.toast-success .toast-icon {
    color: var(--success);
}

.toast-error .toast-icon {
    color: var(--danger);
}

.toast-warning .toast-icon {
    color: var(--warning);
}

.toast-info .toast-icon {
    color: var(--info);
}

.toast-message {
    flex: 1;
    font-size: 14px;
    color: var(--text-primary);
}

.toast-close {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--text-muted);
}

/* 搜索框 */
.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box input {
    padding-left: 36px;
    width: 240px;
}

.search-box-icon {
    position: absolute;
    left: 12px;
    color: var(--text-muted);
    width: 16px;
    height: 16px;
}

/* 统计卡片 */
.stat-card {
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow);
}

.stat-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.stat-card-title {
    font-size: 14px;
    color: var(--text-secondary);
}

.stat-card-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
}

.stat-card-value {
    font-size: 28px;
    font-weight: 600;
    color: var(--text-primary);
}

.stat-card-change {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 12px;
    margin-top: 8px;
}

.stat-card-change.up {
    color: var(--success);
}

.stat-card-change.down {
    color: var(--danger);
}

/* 面包屑 */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.breadcrumb-item {
    color: var(--text-secondary);
}

.breadcrumb-item a {
    color: var(--text-secondary);
}

.breadcrumb-item a:hover {
    color: var(--primary);
}

.breadcrumb-item.active {
    color: var(--text-primary);
}

.breadcrumb-separator {
    color: var(--text-muted);
}

/* 步骤条 */
.steps {
    display: flex;
    align-items: center;
}

.step {
    display: flex;
    align-items: center;
    flex: 1;
}

.step-indicator {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 14px;
    font-weight: 500;
    background-color: var(--gray-100);
    color: var(--text-secondary);
    flex-shrink: 0;
    border: 2px solid var(--border-color);
}

.step-content {
    margin-left: 12px;
}

.step-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.step-desc {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

.step-connector {
    flex: 1;
    height: 2px;
    background: var(--border-color);
    margin: 0 16px;
}

.step.completed .step-indicator {
    background: linear-gradient(135deg, var(--success) 0%, #34d399 100%);
    color: var(--white);
    border-color: transparent;
}

.step.completed .step-title {
    color: var(--success);
}

.step.completed .step-connector {
    background: linear-gradient(90deg, var(--success) 0%, #34d399 100%);
}

.step.active .step-indicator {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--white);
    border-color: transparent;
}

.step.active .step-title {
    color: var(--primary);
}

/* Tab切换 */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
}

.tab-item {
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    transition: var(--transition-fast);
}

.tab-item:hover {
    color: #00d4ff;
    background-color: rgba(0, 136, 255, 0.05);
}

.tab-item.active {
    color: #00d4ff;
    border-bottom-color: #00d4ff;
    background-color: rgba(0, 136, 255, 0.1);
}

.tab-content {
    padding: 20px 0;
}

.tab-panel {
    display: none;
}

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