/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: #2563eb;
}

.nav-logo i {
    margin-right: 0.5rem;
    font-size: 1.8rem;
}

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

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: #2563eb;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #2563eb;
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

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

.bar {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主要内容区域 */
main {
    margin-top: 80px;
}

/* 首页英雄区域 */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 4rem 2rem;
    text-align: center;
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.2s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    animation: fadeInUp 1s ease 0.4s both;
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary {
    background: #2563eb;
    color: white;
}

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
}

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

.btn-secondary:hover {
    background: white;
    color: #667eea;
    transform: translateY(-2px);
}

.hero-stats {
    display: flex;
    gap: 3rem;
    animation: fadeInUp 1s ease 0.6s both;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stat-item i {
    font-size: 2rem;
    opacity: 0.8;
}

.stat-content h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.stat-content p {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* 通用部分样式 */
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #1f2937;
}

.section-header p {
    font-size: 1.1rem;
    color: #6b7280;
}

/* 地图部分 */
.map-section {
    padding: 4rem 2rem;
    background: #f8fafc;
}

.map-container {
    max-width: 1200px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.map {
    height: 500px;
    background: #e5e7eb;
    position: relative;
}

.map-controls {
    padding: 1.5rem;
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.search-box {
    display: flex;
    flex: 1;
    max-width: 400px;
}

.search-box input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 50px 0 0 50px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s ease;
}

.search-box input:focus {
    border-color: #2563eb;
}

.search-box button {
    padding: 0.75rem 1.5rem;
    background: #2563eb;
    color: white;
    border: none;
    border-radius: 0 50px 50px 0;
    cursor: pointer;
    transition: background 0.3s ease;
}

.search-box button:hover {
    background: #1d4ed8;
}

.filter-controls {
    display: flex;
    gap: 1rem;
}

.filter-controls select {
    padding: 0.75rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 50px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s ease;
    background: white;
}

.filter-controls select:focus {
    border-color: #2563eb;
}

/* 充电站列表部分 */
.stations-section {
    padding: 4rem 2rem;
    background: white;
}

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

.stations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.station-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
}

.station-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    border-color: #2563eb;
}

.station-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.station-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1f2937;
}

.station-status {
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
}

.status-available {
    background: #dcfce7;
    color: #166534;
}

.status-occupied {
    background: #fef3c7;
    color: #92400e;
}

.status-maintenance {
    background: #fee2e2;
    color: #991b1b;
}

.station-info {
    margin-bottom: 1rem;
}

.station-info p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: #6b7280;
}

.station-info i {
    width: 16px;
    color: #2563eb;
}

.station-types {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.type-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
}

.type-fast {
    background: #dbeafe;
    color: #1e40af;
}

.type-slow {
    background: #f3e8ff;
    color: #7c3aed;
}

.type-super {
    background: #fef3c7;
    color: #92400e;
}

.station-actions {
    display: flex;
    gap: 0.5rem;
}

.station-actions button {
    flex: 1;
    padding: 0.5rem;
    border: none;
    border-radius: 8px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-navigate {
    background: #2563eb;
    color: white;
}

.btn-navigate:hover {
    background: #1d4ed8;
}

.btn-details {
    background: #f3f4f6;
    color: #374151;
}

.btn-details:hover {
    background: #e5e7eb;
}

/* 关于我们部分 */
.about-section {
    padding: 4rem 2rem;
    background: #f8fafc;
}

.about-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1f2937;
}

.about-text p {
    margin-bottom: 2rem;
    color: #6b7280;
    line-height: 1.8;
}

.about-text ul {
    list-style: none;
    margin-bottom: 2rem;
}

.about-text li {
    padding: 0.5rem 0;
    color: #6b7280;
    position: relative;
    padding-left: 1.5rem;
}

.about-text li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #2563eb;
    font-weight: bold;
}

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

.about-image i {
    font-size: 8rem;
    color: #2563eb;
    opacity: 0.8;
}

/* 联系我们部分 */
.contact-section {
    padding: 4rem 2rem;
    background: white;
}

.contact-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

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

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: #2563eb;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #dbeafe;
    border-radius: 50%;
}

.contact-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: #1f2937;
}

.contact-item p {
    color: #6b7280;
}

.contact-form {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 20px;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: #2563eb;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 页脚 */
.footer {
    background: #1f2937;
    color: white;
    padding: 3rem 2rem 1rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #f9fafb;
}

.footer-section p {
    color: #d1d5db;
    margin-bottom: 0.5rem;
}

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

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

.footer-section ul li a {
    color: #d1d5db;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: #2563eb;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    background: #374151;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: #2563eb;
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #374151;
    color: #9ca3af;
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 2rem;
    border-radius: 20px;
    width: 90%;
    max-width: 600px;
    position: relative;
    animation: modalSlideIn 0.3s ease;
}

.close {
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    color: #6b7280;
    transition: color 0.3s ease;
}

.close:hover {
    color: #1f2937;
}

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

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        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);
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-stats {
        flex-direction: column;
        gap: 2rem;
    }

    .map-controls {
        flex-direction: column;
        align-items: stretch;
    }

    .search-box {
        max-width: none;
    }

    .filter-controls {
        justify-content: center;
    }

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

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

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

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

@media (max-width: 480px) {
    .nav-container {
        padding: 0 1rem;
    }

    .hero-section {
        padding: 3rem 1rem;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .map-section,
    .stations-section,
    .about-section,
    .contact-section {
        padding: 3rem 1rem;
    }

    .station-card {
        padding: 1.5rem;
    }

    .modal-content {
        margin: 10% auto;
        padding: 1.5rem;
        width: 95%;
    }
} 

/* 城市选择部分 */
.cities-section {
    padding: 4rem 2rem;
    background: white;
}

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

.cities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.city-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
    border: 2px solid transparent;
    text-align: center;
}

.city-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    border-color: #2563eb;
}

.city-image {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.city-image i {
    font-size: 2rem;
    color: white;
}

.city-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1f2937;
}

.city-card p {
    color: #6b7280;
    margin-bottom: 1rem;
}

.city-stats {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.city-stats span {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: #6b7280;
    font-size: 0.9rem;
}

.city-stats i {
    color: #2563eb;
}

/* 合作伙伴部分 */
.partners-section {
    padding: 4rem 2rem;
    background: #f8fafc;
}

.partners-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.partner-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s ease;
}

.partner-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.partner-logo {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.partner-logo i {
    font-size: 2.5rem;
    color: white;
}

.partner-card h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1f2937;
}

.partner-card > p {
    color: #6b7280;
    margin-bottom: 1.5rem;
}

.partner-contact {
    margin-bottom: 1.5rem;
}

.partner-contact p {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: #6b7280;
}

.partner-contact i {
    color: #2563eb;
    width: 16px;
}

/* 响应式设计更新 */
@media (max-width: 768px) {
    .cities-grid {
        grid-template-columns: 1fr;
    }
    
    .partners-container {
        grid-template-columns: 1fr;
    }
    
    .city-card,
    .partner-card {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .cities-section,
    .partners-section {
        padding: 3rem 1rem;
    }
    
    .city-image,
    .partner-logo {
        width: 60px;
        height: 60px;
    }
    
    .city-image i,
    .partner-logo i {
        font-size: 1.5rem;
    }
}

/* 外部链接样式 */
.external-links {
    margin-top: 1rem;
    text-align: center;
}

.ai-tools-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #000000;
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border: 1px solid #000000;
    border-radius: 4px;
    transition: all 0.3s ease;
    background-color: #ffffff;
}

.ai-tools-link:hover {
    background-color: #000000;
    color: #ffffff;
    text-decoration: none;
}

.ai-tools-link i {
    font-size: 1rem;
}

/* 品牌页面样式 */
.brands-nav-section {
    padding: 4rem 2rem;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.brands-nav {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.brand-nav-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 50px;
    color: #64748b;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.brand-nav-btn:hover,
.brand-nav-btn.active {
    background: #2563eb;
    border-color: #2563eb;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
}

.brand-nav-btn i {
    font-size: 1rem;
}

.brands-section {
    padding: 4rem 2rem;
}

.brands-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.brand-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
    border: 1px solid #e2e8f0;
}

.brand-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.brand-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.brand-logo i {
    font-size: 2rem;
    color: white;
}

.brand-info h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1f2937;
}

.brand-desc {
    color: #6b7280;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.brand-stats {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.brand-stats span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #64748b;
    font-size: 0.9rem;
}

.brand-stats i {
    color: #2563eb;
    width: 16px;
}

.brand-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.feature-tag {
    background: #e0f2fe;
    color: #0369a1;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.brand-contact {
    border-top: 1px solid #e2e8f0;
    padding-top: 1rem;
}

.brand-contact p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: #64748b;
    font-size: 0.9rem;
}

.brand-contact i {
    color: #2563eb;
    width: 16px;
}

.brands-comparison-section {
    padding: 4rem 2rem;
    background: #f8fafc;
}

.comparison-table {
    max-width: 1200px;
    margin: 0 auto;
    margin-top: 2rem;
    overflow-x: auto;
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.comparison-table th,
.comparison-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

.comparison-table th {
    background: #2563eb;
    color: white;
    font-weight: 600;
}

.comparison-table tr:hover {
    background: #f8fafc;
}

/* 游戏页面样式 */
.games-selection-section {
    padding: 4rem 2rem;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.games-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.game-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
    text-align: center;
    border: 1px solid #e2e8f0;
}

.game-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.game-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.game-icon i {
    font-size: 2rem;
    color: white;
}

.game-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1f2937;
}

.game-card p {
    color: #6b7280;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.game-stats {
    color: #2563eb;
    font-weight: 500;
}

.game-area-section {
    padding: 2rem;
    background: #f8fafc;
    min-height: 60vh;
}

.game-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.game-controls {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.game-info {
    margin-bottom: 2rem;
}

.score-board {
    display: flex;
    justify-content: center;
    gap: 2rem;
    background: white;
    padding: 1rem 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    flex-wrap: wrap;
}

.score-board span {
    font-weight: 600;
    color: #1f2937;
}

.game-container {
    background: white;
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.leaderboard-section {
    padding: 4rem 2rem;
    background: #f8fafc;
}

.leaderboard-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    background: white;
    border: 2px solid #e2e8f0;
    border-radius: 50px;
    color: #64748b;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn:hover,
.tab-btn.active {
    background: #2563eb;
    border-color: #2563eb;
    color: white;
}

.leaderboard-content {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 10px;
    padding: 2rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.game-instructions-section {
    padding: 4rem 2rem;
    background: white;
}

.instructions-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.instruction-card {
    background: #f8fafc;
    border-radius: 15px;
    padding: 2rem;
    border: 1px solid #e2e8f0;
}

.instruction-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1f2937;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.instruction-card h3 i {
    color: #2563eb;
}

.instruction-card ul {
    list-style: none;
    padding: 0;
}

.instruction-card li {
    padding: 0.5rem 0;
    color: #64748b;
    position: relative;
    padding-left: 1.5rem;
}

.instruction-card li::before {
    content: "•";
    color: #2563eb;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .brands-nav,
    .leaderboard-tabs {
        flex-direction: column;
        align-items: center;
    }
    
    .brand-nav-btn,
    .tab-btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .brands-grid,
    .games-grid,
    .instructions-grid {
        grid-template-columns: 1fr;
    }
    
    .game-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .game-controls {
        justify-content: center;
    }
    
    .score-board {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .comparison-table {
        font-size: 0.9rem;
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: 0.75rem 0.5rem;
    }
}

@media (max-width: 480px) {
    .brands-nav-section,
    .brands-section,
    .brands-comparison-section,
    .games-selection-section,
    .game-area-section,
    .leaderboard-section,
    .game-instructions-section {
        padding: 2rem 1rem;
    }
    
    .brand-card,
    .game-card,
    .instruction-card {
        padding: 1.5rem;
    }
    
    .brand-logo,
    .game-icon {
        width: 60px;
        height: 60px;
    }
    
    .brand-logo i,
    .game-icon i {
        font-size: 1.5rem;
    }
}

/* FAQ部分样式 */
.faq-section {
    padding: 4rem 2rem;
    background: #f8fafc;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
    margin-top: 2rem;
}

.faq-item {
    background: white;
    border-radius: 10px;
    margin-bottom: 1rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f8fafc;
    border-bottom: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.faq-question:hover {
    background: #e2e8f0;
}

.faq-question h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1f2937;
    margin: 0;
}

.faq-question i {
    color: #2563eb;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item.active .faq-answer {
    padding: 1.5rem;
    max-height: 500px;
}

.faq-answer p {
    color: #6b7280;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.faq-answer ul,
.faq-answer ol {
    color: #6b7280;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.faq-answer li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

/* 响应式FAQ */
@media (max-width: 768px) {
    .faq-section {
        padding: 2rem 1rem;
    }
    
    .faq-question h3 {
        font-size: 1rem;
    }
    
    .faq-question,
    .faq-answer {
        padding: 1rem;
    }
}

/* 服务介绍部分样式 */
.services-section {
    padding: 4rem 2rem;
    background: white;
}

.services-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.service-card {
    background: #f8fafc;
    border-radius: 15px;
    padding: 2rem;
    border: 1px solid #e2e8f0;
    transition: all 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon i {
    font-size: 1.5rem;
    color: white;
}

.service-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1f2937;
}

.service-card p {
    color: #6b7280;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.service-card ul {
    list-style: none;
    padding: 0;
}

.service-card li {
    padding: 0.5rem 0;
    color: #64748b;
    position: relative;
    padding-left: 1.5rem;
}

.service-card li::before {
    content: "✓";
    color: #10b981;
    font-weight: bold;
    position: absolute;
    left: 0;
}

/* 投资指南部分样式 */
.investment-section {
    padding: 4rem 2rem;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.investment-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
    align-items: start;
}

.investment-info h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1f2937;
}

.investment-info p {
    color: #6b7280;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.investment-info ul {
    list-style: none;
    padding: 0;
    margin-bottom: 2rem;
}

.investment-info li {
    padding: 0.5rem 0;
    color: #64748b;
    position: relative;
    padding-left: 1.5rem;
}

.investment-info li::before {
    content: "•";
    color: #2563eb;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.investment-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.stat-card {
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.stat-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #64748b;
    margin-bottom: 0.5rem;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: #2563eb;
    margin-bottom: 0.5rem;
}

.stat-card p:last-child {
    color: #6b7280;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .services-container {
        grid-template-columns: 1fr;
    }
    
    .investment-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .investment-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .services-section,
    .investment-section {
        padding: 2rem 1rem;
    }
}

@media (max-width: 480px) {
    .investment-stats {
        grid-template-columns: 1fr;
    }
    
    .service-card,
    .stat-card {
        padding: 1.5rem;
    }
}