/* 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #ffffff;
    background-color: #000000;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo h2 {
    color: #ffffff;
    font-weight: 700;
    font-size: 1.8rem;
    letter-spacing: 1px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: #ffffff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link:hover {
    color: #ffd700;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 1rem 0;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    list-style: none;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li a {
    color: #ffffff;
    text-decoration: none;
    padding: 0.5rem 1rem;
    display: block;
    transition: background-color 0.3s ease;
}

.dropdown-menu li a:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.nav-buttons {
    display: flex;
    gap: 1rem;
}

.btn-primary, .btn-secondary {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, #ffd700, #ffed4e);
    color: #000000;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255, 215, 0, 0.3);
}

.btn-secondary {
    background: transparent;
    color: #ffffff;
    border: 2px solid #ffffff;
}

.btn-secondary:hover {
    background: #ffffff;
    color: #000000;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: #ffffff;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主要内容样式 */
main {
    margin-top: 80px;
}

/* 产品展示区域 */
.product-hero {
    padding: 4rem 0;
    background: linear-gradient(135deg, #0a0a0a, #1a1a1a);
}

.product-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.product-images {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.main-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.image-gallery {
    display: flex;
    gap: 1rem;
}

.image-gallery img {
    width: 80px;
    height: 60px;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.image-gallery img:hover {
    transform: scale(1.05);
}

.product-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.product-badge {
    display: inline-block;
}

.badge-new {
    background: linear-gradient(135deg, #ff6b6b, #ee5a24);
    color: #ffffff;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.product-info h1 {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.product-features ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.product-features li {
    position: relative;
    padding-left: 2rem;
    font-size: 1.1rem;
    line-height: 1.6;
}

.product-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #ffd700;
    font-weight: bold;
    font-size: 1.2rem;
}

.product-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-primary-large, .btn-secondary-large {
    padding: 1rem 2rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-primary-large {
    background: linear-gradient(135deg, #ffd700, #ffed4e);
    color: #000000;
}

.btn-primary-large:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(255, 215, 0, 0.4);
}

.btn-secondary-large {
    background: transparent;
    color: #ffffff;
    border: 2px solid #ffffff;
}

.btn-secondary-large:hover {
    background: #ffffff;
    color: #000000;
}

.product-meta {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.warranty, .online-eligible {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: #cccccc;
}

.warranty i, .online-eligible i {
    color: #ffd700;
}

/* 兼容性图标 */
.compatibility {
    padding: 3rem 0;
    background: #0a0a0a;
}

.compatibility-icons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    text-align: center;
}

.icon-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    transition: transform 0.3s ease;
}

.icon-item:hover {
    transform: translateY(-5px);
}

.icon-item i {
    font-size: 2rem;
    color: #ffd700;
}

.icon-item span {
    font-size: 0.9rem;
    font-weight: 500;
}

/* 产品详情 */
.product-details {
    padding: 4rem 0;
    background: #1a1a1a;
}

.details-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.detail-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: #ffd700;
}

.detail-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 2rem 0 1rem 0;
    color: #ffffff;
}

.detail-content p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: #cccccc;
}

.detail-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

/* 连接选项 */
.connectivity {
    padding: 4rem 0;
    background: #0a0a0a;
}

.connectivity h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: #ffd700;
}

.connectivity-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.connectivity-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.connectivity-item h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #ffd700;
}

.connectivity-item ul {
    list-style: none;
}

.connectivity-item li {
    padding: 0.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: #cccccc;
}

.connectivity-item li:last-child {
    border-bottom: none;
}

/* 技术规格 */
.specifications {
    padding: 4rem 0;
    background: #1a1a1a;
}

.specifications h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: #ffd700;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
}

.specs-category h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: #ffffff;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
}

.specs-table tr {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.specs-table td {
    padding: 1rem 0;
    vertical-align: top;
}

.specs-table td:first-child {
    font-weight: 600;
    color: #ffd700;
    width: 40%;
}

.specs-table td:last-child {
    color: #cccccc;
}

/* 推荐产品 */
.recommended-products {
    padding: 4rem 0;
    background: #0a0a0a;
}

.recommended-products h2 {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: #ffd700;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.product-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.product-card:hover {
    transform: translateY(-10px);
}

.product-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.product-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 1rem;
    color: #ffffff;
}

.product-card p {
    margin: 0 1rem 1rem 1rem;
    color: #cccccc;
    font-size: 0.9rem;
}

/* 页脚 */
.footer {
    background: #000000;
    padding: 4rem 0 2rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3, .footer-section h4 {
    color: #ffd700;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.footer-section h3 {
    font-size: 1.5rem;
}

.footer-section p {
    color: #cccccc;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #cccccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #ffd700;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    color: #cccccc;
    font-size: 1.5rem;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: #ffd700;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #888888;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(0, 0, 0, 0.95);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .nav-buttons {
        display: none;
    }

    .product-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .product-info h1 {
        font-size: 2rem;
    }

    .details-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

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

    .products-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .product-actions {
        flex-direction: column;
    }

    .btn-primary-large, .btn-secondary-large {
        width: 100%;
        text-align: center;
    }

    .product-meta {
        flex-direction: column;
        gap: 1rem;
    }

    .compatibility-icons {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-hero, .compatibility, .product-details, .connectivity, .specifications, .recommended-products {
    animation: fadeInUp 0.8s ease-out;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #1a1a1a;
}

::-webkit-scrollbar-thumb {
    background: #ffd700;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #ffed4e;
}