/* ==================== LX500.com 全局样式 ==================== */
/* 深色科技风 - IDC云服务器产品展示 */

:root {
    /* 默认深色科技风背景 */
    --bg-primary: #0a0e1a;
    --bg-primary-rgb: 10, 14, 26;
    --bg-secondary: #111827;
    --bg-secondary-rgb: 17, 24, 39;
    --bg-card: #1a2035;
    --bg-card-hover: #1e2844;
    --bg-input: #0f1525;
    --bg-body: var(--bg-primary);

    /* 文字色 */
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    /* 主题色 */
    --accent-rgb: 59, 130, 246;
    --accent-blue: #3b82f6;
    --accent-blue-light: #60a5fa;
    --accent-cyan: #06b6d4;
    --accent-purple: #8b5cf6;

    /* 功能色 */
    --color-hot: #ef4444;
    --color-sale: #f59e0b;
    --color-premium: #8b5cf6;
    --color-success: #10b981;

    /* 边框 */
    --border-color: #1e293b;
    --border-hover: #334155;

    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-purple) 100%);
    --gradient-blue: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-cyan) 100%);
    --gradient-dark: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);

    /* 阴影 */
    --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 8px 40px rgba(var(--accent-rgb), 0.15);
    --shadow-glow: 0 0 20px rgba(var(--accent-rgb), 0.3);

    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

    /* 过渡 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg-body);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    transition: background 0.4s ease, color 0.3s ease;
}

/* 滚动条 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}
::-webkit-scrollbar-thumb {
    background: var(--border-hover);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-blue);
}

a {
    color: var(--accent-blue-light);
    text-decoration: none;
    transition: var(--transition);
}
a:hover {
    color: var(--accent-cyan);
}

/* ==================== 顶部导航 ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(var(--bg-primary-rgb), 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.navbar-scrolled {
    background: rgba(var(--bg-primary-rgb), 0.95);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 800;
    color: var(--text-primary);
    cursor: pointer;
}

.nav-logo .logo-icon {
    width: 36px;
    height: 36px;
    background: var(--gradient-blue);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: white;
    box-shadow: var(--shadow-glow);
    overflow: hidden;
}

.nav-logo .logo-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--text-primary);
    background: rgba(var(--accent-rgb), 0.1);
}

.nav-menu a i {
    font-size: 13px;
}

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

.nav-search {
    position: relative;
}

.nav-search input {
    width: 200px;
    height: 36px;
    padding: 0 36px 0 12px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    transition: var(--transition);
}

.nav-search input:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.1);
    width: 260px;
}

.nav-search i {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 14px;
    pointer-events: none;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 24px;
    cursor: pointer;
    padding: 4px;
}

/* ==================== Hero 区域 ==================== */
.hero {
    position: relative;
    padding: 120px 24px 60px;
    text-align: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(var(--accent-rgb), 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-title {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 16px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 1;
}

.hero-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    position: relative;
    z-index: 1;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    margin-top: 40px;
    position: relative;
    z-index: 1;
}

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

.hero-stat .stat-number {
    font-size: 32px;
    font-weight: 800;
    color: var(--accent-blue-light);
    line-height: 1;
}

.hero-stat .stat-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 6px;
}

/* ==================== 分类导航 ==================== */
.category-bar {
    position: sticky;
    top: 64px;
    z-index: 900;
    background: rgba(var(--bg-secondary-rgb), 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;
}

.category-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 8px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.category-container::-webkit-scrollbar {
    display: none;
}

.category-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 18px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: var(--transition);
}

.category-item:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue-light);
    background: rgba(var(--accent-rgb), 0.05);
}

.category-item.active {
    background: var(--gradient-blue);
    border-color: transparent;
    color: white;
    box-shadow: 0 4px 12px rgba(var(--accent-rgb), 0.3);
}

.category-item i {
    font-size: 13px;
}

.category-count {
    display: inline-block;
    padding: 1px 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    font-size: 11px;
    margin-left: 4px;
}

/* ==================== 系列筛选 ==================== */
.series-bar {
    max-width: 1400px;
    margin: 24px auto 0;
    padding: 0 24px;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.series-bar .series-label {
    font-size: 13px;
    color: var(--text-muted);
    margin-right: 4px;
}

.series-item {
    padding: 6px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
}

.series-item:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue-light);
}

.series-item.active {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: white;
}

/* ==================== 商品区域 ==================== */
.products-section {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
}

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

.products-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.products-count {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 400;
}

.products-sort {
    display: flex;
    align-items: center;
    gap: 8px;
}

.products-sort select {
    padding: 6px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
}

.products-sort select:focus {
    outline: none;
    border-color: var(--accent-blue);
}

/* 商品网格 */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

/* 商品卡片 */
.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
    position: relative;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    border-color: var(--accent-blue);
    background: var(--bg-card-hover);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
}

.product-card .card-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 2;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-hot {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-hot);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-sale {
    background: rgba(245, 158, 11, 0.15);
    color: var(--color-sale);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-premium {
    background: rgba(139, 92, 246, 0.15);
    color: var(--color-premium);
    border: 1px solid rgba(139, 92, 246, 0.3);
}

.product-card .card-header {
    padding: 20px 20px 12px;
    border-bottom: 1px solid var(--border-color);
}

.product-card .card-category {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.product-card .card-name {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.4;
}

.product-card .card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 10px;
}

.product-card .card-tag {
    padding: 2px 8px;
    background: rgba(var(--accent-rgb), 0.1);
    border-radius: 4px;
    font-size: 11px;
    color: var(--accent-blue-light);
}

.product-card .card-specs {
    padding: 16px 20px;
    flex: 1;
}

.spec-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.spec-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
}

.spec-item i {
    color: var(--accent-blue);
    font-size: 12px;
    width: 16px;
    text-align: center;
}

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

.spec-item .spec-value {
    color: var(--text-primary);
    font-weight: 600;
}

.product-card .card-desc {
    padding: 0 20px 16px;
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-card .card-footer {
    padding: 16px 20px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.product-card .card-price {
    display: flex;
    align-items: baseline;
    gap: 2px;
}

.product-card .price-symbol {
    font-size: 14px;
    color: var(--color-hot);
    font-weight: 600;
}

.product-card .price-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--color-hot);
    line-height: 1;
}

.product-card .price-unit {
    font-size: 13px;
    color: var(--text-muted);
}

.btn-purchase {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 24px;
    background: var(--gradient-blue);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

.btn-purchase:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 20px rgba(var(--accent-rgb), 0.4);
    color: white;
}

.btn-purchase:active {
    transform: scale(0.98);
}

/* 自定义商品标识 */
.product-card .custom-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 3px 8px;
    background: rgba(16, 185, 129, 0.15);
    color: var(--color-success);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
}

/* ==================== 空状态 ==================== */
.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state i {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state p {
    font-size: 15px;
}

/* ==================== 加载动画 ==================== */
.loading {
    text-align: center;
    padding: 40px;
}

.loading-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-blue);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ==================== 页脚 ==================== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 48px 24px 24px;
    margin-top: 60px;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 32px;
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.6;
    max-width: 400px;
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 14px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 8px;
}

.footer-col ul li a {
    font-size: 13px;
    color: var(--text-muted);
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--accent-blue-light);
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-muted);
}

.footer-contact-item i {
    color: var(--accent-blue);
    width: 18px;
    text-align: center;
}

.footer-bottom {
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
}

/* ==================== 回到顶部 ==================== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 44px;
    height: 44px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 800;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: white;
    transform: translateY(-4px);
}

/* ==================== Toast 提示 ==================== */
.toast {
    position: fixed;
    top: 80px;
    right: 24px;
    z-index: 9999;
    padding: 12px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    box-shadow: var(--shadow-card);
    display: flex;
    align-items: center;
    gap: 8px;
    transform: translateX(120%);
    transition: transform 0.3s ease;
}

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

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

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

.toast.error {
    border-color: var(--color-hot);
}

.toast.error i {
    color: var(--color-hot);
}

/* ==================== 模态框 ==================== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.show {
    display: flex;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

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

.modal-header h3 {
    font-size: 18px;
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 20px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--text-primary);
    background: var(--bg-card);
}

.modal-body {
    padding: 24px;
}

/* ==================== Banner 区域 ==================== */
.banner-section {
    position: relative;
    min-height: 480px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    padding-top: 64px;
}

.banner-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.6s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.banner-slide.active {
    opacity: 1;
}

.banner-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    padding: 120px 24px 80px;
}

.banner-title {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 16px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.banner-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.banner-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 32px;
    background: var(--gradient-blue);
    color: white;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: var(--transition);
}

.banner-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(var(--accent-rgb), 0.35);
    color: white;
}

/* ==================== 资源中心 ==================== */
.resource-section {
    max-width: 1400px;
    margin: 60px auto 0;
    padding: 0 24px;
}

.resource-section .section-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.resource-section .section-desc {
    font-size: 14px;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.resource-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.resource-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition);
    text-decoration: none;
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
}

.resource-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-blue);
    opacity: 0;
    transition: var(--transition);
}

.resource-card:hover {
    border-color: var(--accent-blue);
    background: var(--bg-card-hover);
    box-shadow: var(--shadow-hover);
    transform: translateY(-4px);
    color: var(--text-primary);
}

.resource-card:hover::before {
    opacity: 1;
}

.resource-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: white;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.resource-info {
    flex: 1;
    min-width: 0;
}

.resource-info h3 {
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.resource-info p {
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
}

.resource-arrow {
    color: var(--text-muted);
    font-size: 16px;
    transition: var(--transition);
    flex-shrink: 0;
}

.resource-card:hover .resource-arrow {
    color: var(--accent-blue-light);
    transform: translateX(4px);
}

/* ==================== 联系我们 ==================== */
.contact-section {
    max-width: 1400px;
    margin: 60px auto 0;
    padding: 0 24px;
}

.contact-section .section-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 32px;
}

.contact-info h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.contact-info > p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 24px;
    line-height: 1.7;
}

.contact-items {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 14px;
    color: var(--text-primary);
}

.contact-item i {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(var(--accent-rgb), 0.1);
    border-radius: 50%;
    color: var(--accent-blue);
    font-size: 16px;
}

.contact-item div {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.contact-label {
    font-size: 12px;
    color: var(--text-muted);
}

.contact-value {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.contact-form-wrap {
    min-width: 0;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-row-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.contact-form .form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.contact-form label {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.1);
}

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

.btn-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--gradient-blue);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(var(--accent-rgb), 0.35);
}

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-stats {
        gap: 24px;
    }

    .banner-content {
        padding: 100px 24px 60px;
    }

    .banner-title {
        font-size: 34px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .resource-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .nav-toggle {
        display: block;
    }

    .nav-search input {
        width: 140px;
    }

    .nav-search input:focus {
        width: 180px;
    }

    .hero {
        padding: 100px 16px 40px;
    }

    .hero-title {
        font-size: 26px;
    }

    .hero-subtitle {
        font-size: 15px;
    }

    .hero-stats {
        gap: 20px;
        flex-wrap: wrap;
    }

    .hero-stat .stat-number {
        font-size: 24px;
    }

    .banner-section {
        min-height: auto;
    }

    .banner-content {
        padding: 100px 16px 60px;
    }

    .banner-title {
        font-size: 26px;
    }

    .banner-subtitle {
        font-size: 15px;
    }

    .form-row-2 {
        grid-template-columns: 1fr;
    }

    .products-section {
        padding: 16px;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .nav-menu.mobile-open {
        display: flex;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--bg-secondary);
        border-bottom: 1px solid var(--border-color);
        padding: 12px;
        gap: 4px;
    }

    .nav-menu.mobile-open a {
        width: 100%;
    }

    .back-to-top {
        bottom: 16px;
        right: 16px;
    }
}

@media (max-width: 480px) {
    .nav-search {
        display: none;
    }

    .hero-title {
        font-size: 22px;
    }

    .spec-list {
        grid-template-columns: 1fr;
    }

    .product-card .card-footer {
        flex-direction: column;
        align-items: stretch;
    }

    .btn-purchase {
        justify-content: center;
    }
}

/* ==================== 动画 ==================== */
.fade-in {
    animation: fadeInUp 0.4s ease forwards;
    opacity: 0;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in:nth-child(1) { animation-delay: 0.05s; }
.fade-in:nth-child(2) { animation-delay: 0.1s; }
.fade-in:nth-child(3) { animation-delay: 0.15s; }
.fade-in:nth-child(4) { animation-delay: 0.2s; }
.fade-in:nth-child(5) { animation-delay: 0.25s; }
.fade-in:nth-child(6) { animation-delay: 0.3s; }
.fade-in:nth-child(7) { animation-delay: 0.35s; }
.fade-in:nth-child(8) { animation-delay: 0.4s; }

/* ==================== 主题配色 (30+ 强调色) ==================== */
:root,
[data-theme="blue"] {
    --accent-rgb: 59, 130, 246;
    --accent-blue: #3b82f6;
    --accent-blue-light: #60a5fa;
    --accent-cyan: #06b6d4;
    --accent-purple: #8b5cf6;
}

[data-theme="cyan"] {
    --accent-rgb: 6, 182, 212;
    --accent-blue: #06b6d4;
    --accent-blue-light: #22d3ee;
    --accent-cyan: #0ea5e9;
    --accent-purple: #3b82f6;
}

[data-theme="sky"] {
    --accent-rgb: 14, 165, 233;
    --accent-blue: #0ea5e9;
    --accent-blue-light: #38bdf8;
    --accent-cyan: #06b6d4;
    --accent-purple: #3b82f6;
}

[data-theme="azure"] {
    --accent-rgb: 0, 127, 255;
    --accent-blue: #007fff;
    --accent-blue-light: #4da3ff;
    --accent-cyan: #0ea5e9;
    --accent-purple: #6366f1;
}

[data-theme="navy"] {
    --accent-rgb: 30, 58, 138;
    --accent-blue: #1e3a8a;
    --accent-blue-light: #2563eb;
    --accent-cyan: #3b82f6;
    --accent-purple: #6366f1;
}

[data-theme="indigo"] {
    --accent-rgb: 99, 102, 241;
    --accent-blue: #6366f1;
    --accent-blue-light: #818cf8;
    --accent-cyan: #8b5cf6;
    --accent-purple: #ec4899;
}

[data-theme="violet"] {
    --accent-rgb: 124, 58, 237;
    --accent-blue: #7c3aed;
    --accent-blue-light: #8b5cf6;
    --accent-cyan: #a78bfa;
    --accent-purple: #ec4899;
}

[data-theme="purple"] {
    --accent-rgb: 139, 92, 246;
    --accent-blue: #8b5cf6;
    --accent-blue-light: #a78bfa;
    --accent-cyan: #ec4899;
    --accent-purple: #6366f1;
}

[data-theme="lavender"] {
    --accent-rgb: 167, 139, 250;
    --accent-blue: #a78bfa;
    --accent-blue-light: #c4b5fd;
    --accent-cyan: #8b5cf6;
    --accent-purple: #7c3aed;
}

[data-theme="fuchsia"] {
    --accent-rgb: 217, 70, 239;
    --accent-blue: #d946ef;
    --accent-blue-light: #e879f9;
    --accent-cyan: #ec4899;
    --accent-purple: #8b5cf6;
}

[data-theme="magenta"] {
    --accent-rgb: 192, 38, 211;
    --accent-blue: #c026d3;
    --accent-blue-light: #d946ef;
    --accent-cyan: #ec4899;
    --accent-purple: #8b5cf6;
}

[data-theme="pink"] {
    --accent-rgb: 236, 72, 153;
    --accent-blue: #ec4899;
    --accent-blue-light: #f472b6;
    --accent-cyan: #f43f5e;
    --accent-purple: #d946ef;
}

[data-theme="rose"] {
    --accent-rgb: 244, 63, 94;
    --accent-blue: #f43f5e;
    --accent-blue-light: #fb7185;
    --accent-cyan: #ec4899;
    --accent-purple: #8b5cf6;
}

[data-theme="coral"] {
    --accent-rgb: 251, 113, 133;
    --accent-blue: #fb7185;
    --accent-blue-light: #fda4af;
    --accent-cyan: #f43f5e;
    --accent-purple: #ec4899;
}

[data-theme="salmon"] {
    --accent-rgb: 250, 128, 114;
    --accent-blue: #fa8072;
    --accent-blue-light: #fcafa4;
    --accent-cyan: #fb7185;
    --accent-purple: #f43f5e;
}

[data-theme="red"] {
    --accent-rgb: 239, 68, 68;
    --accent-blue: #ef4444;
    --accent-blue-light: #f87171;
    --accent-cyan: #f97316;
    --accent-purple: #ec4899;
}

[data-theme="crimson"] {
    --accent-rgb: 220, 38, 38;
    --accent-blue: #dc2626;
    --accent-blue-light: #ef4444;
    --accent-cyan: #f97316;
    --accent-purple: #f43f5e;
}

[data-theme="orange"] {
    --accent-rgb: 249, 115, 22;
    --accent-blue: #f97316;
    --accent-blue-light: #fb923c;
    --accent-cyan: #f59e0b;
    --accent-purple: #ef4444;
}

[data-theme="vermilion"] {
    --accent-rgb: 234, 88, 12;
    --accent-blue: #ea580c;
    --accent-blue-light: #f97316;
    --accent-cyan: #f59e0b;
    --accent-purple: #ef4444;
}

[data-theme="amber"] {
    --accent-rgb: 245, 158, 11;
    --accent-blue: #f59e0b;
    --accent-blue-light: #fbbf24;
    --accent-cyan: #f97316;
    --accent-purple: #ef4444;
}

[data-theme="gold"] {
    --accent-rgb: 251, 191, 36;
    --accent-blue: #fbbf24;
    --accent-blue-light: #fcd34d;
    --accent-cyan: #f59e0b;
    --accent-purple: #d97706;
}

[data-theme="bronze"] {
    --accent-rgb: 205, 127, 50;
    --accent-blue: #cd7f32;
    --accent-blue-light: #e09f4c;
    --accent-cyan: #b45309;
    --accent-purple: #92400e;
}

[data-theme="yellow"] {
    --accent-rgb: 234, 179, 8;
    --accent-blue: #eab308;
    --accent-blue-light: #facc15;
    --accent-cyan: #f59e0b;
    --accent-purple: #ca8a04;
}

[data-theme="lime"] {
    --accent-rgb: 132, 204, 22;
    --accent-blue: #84cc16;
    --accent-blue-light: #a3e635;
    --accent-cyan: #22c55e;
    --accent-purple: #10b981;
}

[data-theme="olive"] {
    --accent-rgb: 101, 163, 13;
    --accent-blue: #65a30d;
    --accent-blue-light: #84cc16;
    --accent-cyan: #22c55e;
    --accent-purple: #15803d;
}

[data-theme="emerald"] {
    --accent-rgb: 16, 185, 129;
    --accent-blue: #10b981;
    --accent-blue-light: #34d399;
    --accent-cyan: #14b8a6;
    --accent-purple: #22c55e;
}

[data-theme="green"] {
    --accent-rgb: 34, 197, 94;
    --accent-blue: #22c55e;
    --accent-blue-light: #4ade80;
    --accent-cyan: #10b981;
    --accent-purple: #16a34a;
}

[data-theme="teal"] {
    --accent-rgb: 20, 184, 166;
    --accent-blue: #14b8a6;
    --accent-blue-light: #2dd4bf;
    --accent-cyan: #06b6d4;
    --accent-purple: #3b82f6;
}

[data-theme="mint"] {
    --accent-rgb: 45, 212, 191;
    --accent-blue: #2dd4bf;
    --accent-blue-light: #5eead4;
    --accent-cyan: #14b8a6;
    --accent-purple: #06b6d4;
}

[data-theme="turquoise"] {
    --accent-rgb: 64, 224, 208;
    --accent-blue: #40e0d0;
    --accent-blue-light: #6ee7df;
    --accent-cyan: #2dd4bf;
    --accent-purple: #0ea5e9;
}

[data-theme="slate"] {
    --accent-rgb: 100, 116, 139;
    --accent-blue: #64748b;
    --accent-blue-light: #94a3b8;
    --accent-cyan: #475569;
    --accent-purple: #334155;
}

[data-theme="zinc"] {
    --accent-rgb: 113, 113, 122;
    --accent-blue: #71717a;
    --accent-blue-light: #a1a1aa;
    --accent-cyan: #52525b;
    --accent-purple: #3f3f46;
}

[data-theme="neutral"] {
    --accent-rgb: 115, 115, 115;
    --accent-blue: #737373;
    --accent-blue-light: #a3a3a3;
    --accent-cyan: #525252;
    --accent-purple: #404040;
}

[data-theme="stone"] {
    --accent-rgb: 120, 113, 108;
    --accent-blue: #78716c;
    --accent-blue-light: #a8a29e;
    --accent-cyan: #57534e;
    --accent-purple: #44403c;
}

[data-theme="silver"] {
    --accent-rgb: 148, 163, 184;
    --accent-blue: #94a3b8;
    --accent-blue-light: #cbd5e1;
    --accent-cyan: #64748b;
    --accent-purple: #475569;
}

/* ==================== 背景风格 (12+ 整体风格) ==================== */
[data-style="dark"] {
    --bg-primary: #0a0e1a;
    --bg-primary-rgb: 10, 14, 26;
    --bg-secondary: #111827;
    --bg-secondary-rgb: 17, 24, 39;
    --bg-card: #1a2035;
    --bg-card-hover: #1e2844;
    --bg-input: #0f1525;
    --bg-body: var(--bg-primary);
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-color: #1e293b;
    --border-hover: #334155;
    --gradient-dark: linear-gradient(180deg, #0a0e1a 0%, #111827 100%);
}

[data-style="light"] {
    --bg-primary: #f1f5f9;
    --bg-primary-rgb: 241, 245, 249;
    --bg-secondary: #e2e8f0;
    --bg-secondary-rgb: 226, 232, 240;
    --bg-card: #ffffff;
    --bg-card-hover: #f8fafc;
    --bg-input: #ffffff;
    --bg-body: var(--bg-primary);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border-color: #cbd5e1;
    --border-hover: #94a3b8;
    --gradient-dark: linear-gradient(180deg, #f1f5f9 0%, #e2e8f0 100%);
    --shadow-card: 0 4px 20px rgba(148, 163, 184, 0.15);
    --shadow-hover: 0 8px 40px rgba(var(--accent-rgb), 0.12);
}

[data-style="cyber"] {
    --bg-primary: #050505;
    --bg-primary-rgb: 5, 5, 5;
    --bg-secondary: #0a0a0a;
    --bg-secondary-rgb: 10, 10, 10;
    --bg-card: #111111;
    --bg-card-hover: #1a1a1a;
    --bg-input: #0a0a0a;
    --bg-body: radial-gradient(ellipse at top, #1a0b2e 0%, #050505 50%, #000000 100%);
    --text-primary: #f0f0f0;
    --text-secondary: #a0a0a0;
    --text-muted: #606060;
    --border-color: #2a2a2a;
    --border-hover: var(--accent-blue);
    --gradient-dark: linear-gradient(180deg, #0a0a0a 0%, #050505 100%);
}

[data-style="ocean"] {
    --bg-primary: #0c1b2a;
    --bg-primary-rgb: 12, 27, 42;
    --bg-secondary: #102a43;
    --bg-secondary-rgb: 16, 42, 67;
    --bg-card: #14344f;
    --bg-card-hover: #1a4263;
    --bg-input: #0e2233;
    --bg-body: linear-gradient(135deg, #0c1b2a 0%, #0f3d5c 50%, #0c1b2a 100%);
    --text-primary: #e6f7ff;
    --text-secondary: #8bbfdb;
    --text-muted: #4a7a99;
    --border-color: #1d4d70;
    --border-hover: #2d6a99;
    --gradient-dark: linear-gradient(180deg, #0c1b2a 0%, #102a43 100%);
}

[data-style="sunset"] {
    --bg-primary: #1a1033;
    --bg-primary-rgb: 26, 16, 51;
    --bg-secondary: #2d1b4e;
    --bg-secondary-rgb: 45, 27, 78;
    --bg-card: #3d2466;
    --bg-card-hover: #4a2d7a;
    --bg-input: #251542;
    --bg-body: linear-gradient(135deg, #1a1033 0%, #4a1d4a 50%, #2d1b4e 100%);
    --text-primary: #fff5f5;
    --text-secondary: #e0b0d0;
    --text-muted: #9d6b9a;
    --border-color: #4a2d7a;
    --border-hover: #6b3d99;
    --gradient-dark: linear-gradient(180deg, #1a1033 0%, #2d1b4e 100%);
}

[data-style="forest"] {
    --bg-primary: #0b1f14;
    --bg-primary-rgb: 11, 31, 20;
    --bg-secondary: #113321;
    --bg-secondary-rgb: 17, 51, 33;
    --bg-card: #1a4530;
    --bg-card-hover: #23543d;
    --bg-input: #0e2b1c;
    --bg-body: linear-gradient(135deg, #0b1f14 0%, #164430 50%, #0b1f14 100%);
    --text-primary: #f0fdf4;
    --text-secondary: #86efac;
    --text-muted: #4ade80;
    --border-color: #23543d;
    --border-hover: #2f6b4c;
    --gradient-dark: linear-gradient(180deg, #0b1f14 0%, #113321 100%);
}

[data-style="midnight"] {
    --bg-primary: #0f0a1e;
    --bg-primary-rgb: 15, 10, 30;
    --bg-secondary: #1a1230;
    --bg-secondary-rgb: 26, 18, 48;
    --bg-card: #251a45;
    --bg-card-hover: #2f2255;
    --bg-input: #18102e;
    --bg-body: radial-gradient(ellipse at top right, #2e1065 0%, #0f0a1e 50%, #000000 100%);
    --text-primary: #f3e8ff;
    --text-secondary: #c4b5fd;
    --text-muted: #7c3aed;
    --border-color: #2f2255;
    --border-hover: #4c1d95;
    --gradient-dark: linear-gradient(180deg, #0f0a1e 0%, #1a1230 100%);
}

[data-style="sakura"] {
    --bg-primary: #fff0f5;
    --bg-primary-rgb: 255, 240, 245;
    --bg-secondary: #ffe4ed;
    --bg-secondary-rgb: 255, 228, 237;
    --bg-card: #ffffff;
    --bg-card-hover: #fff5f8;
    --bg-input: #ffffff;
    --bg-body: linear-gradient(135deg, #fff0f5 0%, #ffe4ed 50%, #fff0f5 100%);
    --text-primary: #4a0d24;
    --text-secondary: #9d174d;
    --text-muted: #db2777;
    --border-color: #fbcfe8;
    --border-hover: #f9a8d4;
    --gradient-dark: linear-gradient(180deg, #fff0f5 0%, #ffe4ed 100%);
    --shadow-card: 0 4px 20px rgba(244, 63, 94, 0.08);
    --shadow-hover: 0 8px 40px rgba(var(--accent-rgb), 0.1);
}

[data-style="gold"] {
    --bg-primary: #0f0c05;
    --bg-primary-rgb: 15, 12, 5;
    --bg-secondary: #1a1508;
    --bg-secondary-rgb: 26, 21, 8;
    --bg-card: #27200d;
    --bg-card-hover: #362b12;
    --bg-input: #1a1508;
    --bg-body: linear-gradient(135deg, #0f0c05 0%, #362b12 50%, #0f0c05 100%);
    --text-primary: #fffbeb;
    --text-secondary: #d4b87a;
    --text-muted: #a68a4a;
    --border-color: #4a3b1a;
    --border-hover: #b48f3a;
    --gradient-dark: linear-gradient(180deg, #0f0c05 0%, #1a1508 100%);
}

[data-style="glass"] {
    --bg-primary: #0f172a;
    --bg-primary-rgb: 15, 23, 42;
    --bg-secondary: rgba(30, 41, 59, 0.7);
    --bg-secondary-rgb: 30, 41, 59;
    --bg-card: rgba(30, 41, 59, 0.6);
    --bg-card-hover: rgba(51, 65, 85, 0.7);
    --bg-input: rgba(15, 23, 42, 0.8);
    --bg-body: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #0f172a 100%);
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border-color: rgba(148, 163, 184, 0.2);
    --border-hover: rgba(148, 163, 184, 0.4);
    --gradient-dark: linear-gradient(180deg, rgba(15,23,42,0.9) 0%, rgba(30,41,59,0.8) 100%);
}

[data-style="glass"] .navbar,
[data-style="glass"] .category-bar,
[data-style="glass"] .product-card,
[data-style="glass"] .data-table-wrap,
[data-style="glass"] .dashboard-panel,
[data-style="glass"] .stat-card {
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

[data-style="minimal"] {
    --bg-primary: #ffffff;
    --bg-primary-rgb: 255, 255, 255;
    --bg-secondary: #f8fafc;
    --bg-secondary-rgb: 248, 250, 252;
    --bg-card: #ffffff;
    --bg-card-hover: #f1f5f9;
    --bg-input: #ffffff;
    --bg-body: var(--bg-primary);
    --text-primary: #020617;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --border-hover: #cbd5e1;
    --gradient-dark: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-hover: 0 4px 12px rgba(var(--accent-rgb), 0.08);
}

[data-style="carbon"] {
    --bg-primary: #121212;
    --bg-primary-rgb: 18, 18, 18;
    --bg-secondary: #1e1e1e;
    --bg-secondary-rgb: 30, 30, 30;
    --bg-card: #252525;
    --bg-card-hover: #2e2e2e;
    --bg-input: #1a1a1a;
    --bg-body: var(--bg-primary);
    --text-primary: #fafafa;
    --text-secondary: #a3a3a3;
    --text-muted: #737373;
    --border-color: #333333;
    --border-hover: #525252;
    --gradient-dark: linear-gradient(180deg, #121212 0%, #1e1e1e 100%);
}

[data-style="galaxy"] {
    --bg-primary: #070510;
    --bg-primary-rgb: 7, 5, 16;
    --bg-secondary: #110c24;
    --bg-secondary-rgb: 17, 12, 36;
    --bg-card: #1a1330;
    --bg-card-hover: #241a42;
    --bg-input: #100c1e;
    --bg-body: radial-gradient(ellipse at 20% 20%, #2e1065 0%, transparent 50%),
               radial-gradient(ellipse at 80% 80%, #4c1d95 0%, transparent 40%),
               linear-gradient(180deg, #070510 0%, #110c24 100%);
    --text-primary: #f5f3ff;
    --text-secondary: #c4b5fd;
    --text-muted: #7c3aed;
    --border-color: #2e2255;
    --border-hover: #4c1d95;
    --gradient-dark: linear-gradient(180deg, #070510 0%, #110c24 100%);
}

[data-style="nord"] {
    --bg-primary: #2e3440;
    --bg-primary-rgb: 46, 52, 64;
    --bg-secondary: #3b4252;
    --bg-secondary-rgb: 59, 66, 82;
    --bg-card: #434c5e;
    --bg-card-hover: #4c566a;
    --bg-input: #3b4252;
    --bg-body: var(--bg-primary);
    --text-primary: #eceff4;
    --text-secondary: #d8dee9;
    --text-muted: #81a1c1;
    --border-color: #4c566a;
    --border-hover: #5e81ac;
    --gradient-dark: linear-gradient(180deg, #2e3440 0%, #3b4252 100%);
}