/* 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: #333;
    overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 0.8rem 0;
    transition: all 0.3s ease;
}

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

.nav-logo h2 {
    color: #1a1a1a;
    font-weight: 700;
    font-size: 1.6rem;
    letter-spacing: 2px;
}

.nav-menu {
    display: flex;
    gap: 1.5rem;
}

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
    font-size: 0.95rem;
}

.nav-link:hover {
    color: #007bff;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #007bff;
    transition: width 0.3s ease;
}

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

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

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* 英雄区域 - 更紧凑设计 */
.hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    z-index: 2;
}

/* 英雄徽章 */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 1rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-badge i {
    color: #ffc107;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    line-height: 1.2;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    opacity: 0.9;
    animation: fadeInUp 1s ease 0.2s both;
}

/* 英雄亮点 */
.hero-highlights {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease 0.3s both;
}

.highlight-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.95rem;
    font-weight: 500;
}

.highlight-item i {
    color: #4ade80;
    font-size: 1.1rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease 0.4s both;
}

.hero-buttons .btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* 信任标识 */
.hero-trust {
    display: flex;
    gap: 1.5rem;
    animation: fadeInUp 1s ease 0.5s both;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    opacity: 0.9;
}

.trust-item i {
    font-size: 1rem;
    color: #4ade80;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    animation: fadeInRight 1s ease 0.6s both;
}

.hero-shoe {
    width: 250px;
    height: 250px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.hero-shoe i {
    font-size: 6rem;
    color: white;
    animation: float 3s ease-in-out infinite;
}

/* 统计气泡 */
.hero-stats {
    position: absolute;
    top: 0;
    right: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.stat-bubble {
    background: rgba(255, 255, 255, 0.95);
    color: #1a1a1a;
    padding: 0.8rem 1rem;
    border-radius: 15px;
    text-align: center;
    backdrop-filter: blur(10px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    animation: fadeInRight 1s ease 0.8s both;
}

.stat-bubble:nth-child(2) {
    animation-delay: 1s;
}

.stat-number {
    display: block;
    font-size: 1.2rem;
    font-weight: 700;
    color: #007bff;
}

.stat-label {
    font-size: 0.8rem;
    color: #666;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 10px 25px;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 0.95rem;
}

.btn-primary {
    background: #007bff;
    color: white;
}

.btn-primary:hover {
    background: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 123, 255, 0.3);
}

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

.btn-secondary:hover {
    background: white;
    color: #007bff;
    transform: translateY(-2px);
}

.btn-large {
    padding: 15px 30px;
    font-size: 1.1rem;
}

/* 特色区域 - 更紧凑 */
.features {
    padding: 60px 0;
    background: #f8f9fa;
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 2.5rem;
    color: #1a1a1a;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.feature-icon i {
    font-size: 1.8rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
    color: #1a1a1a;
}

.feature-card p {
    color: #666;
    line-height: 1.5;
    font-size: 0.95rem;
}

/* 产品区域 - 更紧凑 */
.products {
    padding: 60px 0;
    background: white;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.product-card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #f0f0f0;
    position: relative;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

/* 产品徽章 */
.product-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: #ff6b6b;
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.product-badge:contains("BEST SELLER") {
    background: #4ade80;
}

.product-badge:contains("TRAIL FAVORITE") {
    background: #f59e0b;
}

.product-badge:contains("SPEED DEMON") {
    background: #8b5cf6;
}

.product-image {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
}

.product-image i {
    font-size: 2.5rem;
    color: #007bff;
}

.product-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #1a1a1a;
}

.product-card p {
    color: #666;
    margin-bottom: 0.8rem;
    font-size: 0.95rem;
}

/* 产品评分 */
.product-rating {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    margin-bottom: 0.8rem;
}

.product-rating i {
    color: #ffc107;
    font-size: 0.9rem;
}

.product-rating span {
    font-size: 0.8rem;
    color: #666;
    margin-left: 0.5rem;
}

.price {
    display: block;
    font-size: 1.4rem;
    font-weight: 700;
    color: #007bff;
    margin-bottom: 1rem;
}

/* 评价区域 - 更紧凑 */
.reviews {
    padding: 60px 0;
    background: #f8f9fa;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.review-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #f0f0f0;
}

.review-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

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

.reviewer-info {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.reviewer-avatar {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.reviewer-avatar i {
    font-size: 1.1rem;
    color: white;
}

.reviewer-details h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 0.1rem;
}

.reviewer-details p {
    font-size: 0.85rem;
    color: #666;
    margin: 0;
}

.review-rating {
    display: flex;
    gap: 0.2rem;
}

.review-rating i {
    color: #ffc107;
    font-size: 0.9rem;
}

.review-text {
    color: #333;
    line-height: 1.5;
    margin-bottom: 1rem;
    font-style: italic;
    font-size: 0.95rem;
}

.review-product {
    display: inline-block;
    background: #f8f9fa;
    padding: 0.4rem 0.8rem;
    border-radius: 15px;
    border: 1px solid #e9ecef;
}

.review-product span {
    font-size: 0.85rem;
    font-weight: 500;
    color: #007bff;
}

/* CTA区域 */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #1a1a1a, #333);
    color: white;
    text-align: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: white;
}

.cta-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.cta-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 500;
}

.cta-feature i {
    color: #4ade80;
    font-size: 1.2rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.cta-buttons .btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.cta-guarantee {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    opacity: 0.8;
}

.cta-guarantee i {
    color: #4ade80;
}

/* Affiliate声明 */
.affiliate-disclosure {
    padding: 40px 0;
    background: #f8f9fa;
    border-top: 1px solid #e9ecef;
}

.disclosure-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.disclosure-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1a1a1a;
}

.disclosure-content p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #666;
    margin-bottom: 1.5rem;
}

.disclosure-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.disclosure-links a {
    color: #007bff;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.disclosure-links a:hover {
    color: #0056b3;
    text-decoration: underline;
}

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

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

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.5rem;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-highlights {
        align-items: center;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-trust {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .hero-shoe {
        width: 180px;
        height: 180px;
    }
    
    .hero-shoe i {
        font-size: 4rem;
    }
    
    .hero-stats {
        position: static;
        flex-direction: row;
        justify-content: center;
        margin-top: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .features-grid,
    .products-grid,
    .reviews-grid {
        grid-template-columns: 1fr;
    }
    
    .review-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.8rem;
    }
    
    .features,
    .products,
    .reviews {
        padding: 40px 0;
    }
    
    .cta-section {
        padding: 60px 0;
    }
    
    .cta-content h2 {
        font-size: 2rem;
    }
    
    .cta-features {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .disclosure-links {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
    }
    
    .hero-trust {
        flex-direction: column;
        align-items: center;
        gap: 0.8rem;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .feature-card,
    .product-card,
    .review-card {
        padding: 1.2rem;
    }
    
    .reviews-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-content h2 {
        font-size: 1.8rem;
    }
    
    .cta-content p {
        font-size: 1rem;
    }
}