/* Global Styles */
:root {
    --primary-color: #4a6fff;
    --primary-dark: #3a5fef;
    --primary-color-light: #eef2ff;
    --secondary-color: #ff7a50;
    --text-color: #333;
    --light-text: #767676;
    --light-bg: #f9f9f9;
    --background-light: #f5f7ff;
    --white: #ffffff;
    --border-color: #e5e5e5;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --radius: 8px;
    --shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
}

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

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

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.section-title {
    text-align: center;
    margin-bottom: 15px;
    font-size: 2.2rem;
    color: var(--text-color);
    font-weight: 600;
}

.section-subtitle {
    text-align: center;
    margin-bottom: 40px;
    color: var(--light-text);
    font-size: 1.1rem;
}

/* Buttons */
.btn-primary {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 12px 30px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 14px;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(74, 111, 255, 0.25);
}

.btn-buy {
    display: inline-block;
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 10px 25px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    width: 100%;
    text-align: center;
    font-size: 15px;
}

.btn-buy:hover {
    background-color: #ff6a3a;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(255, 122, 80, 0.25);
}

.btn-submit {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--white);
    padding: 12px 30px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    width: 100%;
}

.btn-submit:hover {
    background-color: var(--primary-dark);
}

.btn-accept {
    display: inline-block;
    background-color: var(--success-color);
    color: var(--white);
    padding: 8px 20px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

.btn-accept:hover {
    background-color: #218838;
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 40px;
    margin-right: 10px;
}

.logo span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-links a {
    margin: 0 15px;
    color: var(--text-color);
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.mobile-menu {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    height: 90vh;
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('assets/hero.jpg');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    padding-top: 70px;
}

.hero-content {
    max-width: 800px;
    padding: 0 20px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 15px;
    font-weight: 700;
}

.hero h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    font-weight: 400;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

/* Benefits Section */
.benefits {
    padding: 70px 0;
    background-color: var(--light-bg);
}

.benefits .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.benefit-card {
    background-color: var(--white);
    padding: 30px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.benefit-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.benefit-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

/* Products Section */
.products {
    padding: 80px 0;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 30px;
}

.product-card {
    position: relative;
    background-color: var(--white);
    border-radius: var(--radius);
    padding: 25px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.product-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: var(--secondary-color);
    color: white;
    padding: 5px 10px;
    border-radius: var(--radius);
    font-size: 0.8rem;
    font-weight: bold;
    z-index: 2;
}

.product-card img {
    border-radius: var(--radius);
    margin-bottom: 15px;
    aspect-ratio: 1 / 1;
    object-fit: cover;
}

.product-card h3 {
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: var(--text-color);
}

.price {
    margin-bottom: 10px;
}

.current-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-right: 10px;
}

.original-price {
    font-size: 1rem;
    font-weight: 400;
    color: var(--light-text);
    text-decoration: line-through;
}

.product-rating {
    margin-bottom: 15px;
}

.product-rating i {
    color: #ffc107;
    margin-right: 3px;
}

.product-rating span {
    color: var(--light-text);
    font-size: 0.9rem;
}

.product-features {
    list-style-type: none;
    margin-bottom: 20px;
    flex-grow: 1;
}

.product-features li {
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.product-features i {
    color: var(--success-color);
    margin-right: 8px;
}

/* Features Section */
.features {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.feature-showcase {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-top: 40px;
}

.feature-image {
    flex: 1;
    min-width: 300px;
}

.feature-image img {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.feature-list {
    flex: 1;
    min-width: 300px;
}

.feature-item {
    display: flex;
    margin-bottom: 25px;
}

.feature-icon {
    margin-right: 20px;
    height: 50px;
    width: 50px;
    background-color: rgba(74, 111, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.feature-icon i {
    color: var(--primary-color);
    font-size: 1.5rem;
}

.feature-text h3 {
    margin-bottom: 5px;
    font-size: 1.2rem;
}

/* Comparison Section */
.comparison {
    padding: 80px 0;
}

.comparison-table {
    overflow-x: auto;
    margin-top: 40px;
}

table {
    width: 100%;
    border-collapse: collapse;
    box-shadow: var(--shadow);
    border-radius: var(--radius);
    overflow: hidden;
}

thead {
    background-color: var(--primary-color);
    color: var(--white);
}

th, td {
    padding: 15px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

th {
    font-weight: 600;
}

tr:nth-child(even) {
    background-color: var(--light-bg);
}

.comparison-cta td {
    padding: 20px 15px;
}

/* 移动端比较卡片 */
.comparison-cards {
    display: none;
    margin-top: 30px;
}

.comparison-card {
    background-color: var(--white);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.comparison-card-header {
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
    padding: 15px;
    margin: -20px -20px 15px;
    border-radius: var(--radius) var(--radius) 0 0;
}

.comparison-card-header h3 {
    margin: 0;
    font-size: 1.2rem;
}

.comparison-card-body {
    margin-bottom: 20px;
}

.comparison-card-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.comparison-card-item:last-child {
    border-bottom: none;
}

.comparison-card-item-label {
    font-weight: 500;
    color: var(--light-text);
}

.comparison-card .btn-buy {
    margin-top: 10px;
}

@media screen and (max-width: 768px) {
    .comparison-table {
        display: none;
    }
    
    .comparison-cards {
        display: block;
    }
}

/* Reviews Section */
.reviews {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.reviews-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.review-card {
    background-color: var(--white);
    border-radius: var(--radius);
    padding: 25px;
    box-shadow: var(--shadow);
}

.review-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.review-header img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 15px;
}

.review-header h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.rating i {
    color: #ffc107;
    margin-right: 2px;
}

.review-card p {
    font-style: italic;
    margin-bottom: 15px;
    line-height: 1.7;
}

.verified-purchase {
    display: inline-block;
    background-color: rgba(40, 167, 69, 0.1);
    color: var(--success-color);
    padding: 5px 10px;
    border-radius: var(--radius);
    font-size: 0.8rem;
    font-weight: 600;
}

.review-stats {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 20px;
}

.stat-box {
    background-color: var(--white);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    box-shadow: var(--shadow);
    flex: 1;
    min-width: 150px;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--light-text);
}

/* FAQ Section */
.faq {
    padding: 80px 0;
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 20px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.faq-item:hover {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.15);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background-color: var(--background-light);
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.faq-question h3 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-color);
}

.faq-question i {
    transition: transform 0.3s ease;
    color: var(--primary-color);
}

.faq-answer {
    padding: 0 20px;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    background-color: #fff;
}

.faq-item.active .faq-question {
    background-color: var(--primary-color-light);
}

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

.faq-item.active .faq-answer {
    max-height: 300px;
    padding: 20px;
}

/* CTA Section */
.cta {
    padding: 60px 0;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    text-align: center;
}

.cta h2 {
    font-size: 2.2rem;
    margin-bottom: 15px;
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: 25px;
}

.cta strong {
    background-color: rgba(255, 255, 255, 0.2);
    padding: 3px 8px;
    border-radius: var(--radius);
}

/* About Section */
.about {
    padding: 80px 0;
}

.about-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-top: 40px;
}

.about-image {
    flex: 1;
    min-width: 300px;
}

.about-image img {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.about-text {
    flex: 1;
    min-width: 300px;
}

.about-text p {
    margin-bottom: 15px;
    line-height: 1.7;
}

.about-values {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 30px;
}

.value-item {
    flex: 1;
    min-width: 100px;
    text-align: center;
}

.value-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.value-item h4 {
    font-size: 1rem;
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.contact-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-top: 40px;
}

.contact-info {
    flex: 1;
    min-width: 300px;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.contact-item i {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-right: 15px;
    width: 40px;
    height: 40px;
    background-color: rgba(74, 111, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-hours {
    margin-top: 30px;
    margin-bottom: 30px;
}

.contact-hours h4 {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.social-media {
    display: flex;
    gap: 15px;
}

.social-media a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--white);
    transition: var(--transition);
}

.social-media a:hover {
    background-color: var(--primary-dark);
    transform: translateY(-5px);
}

.contact-form {
    flex: 1;
    min-width: 300px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 1rem;
}

.form-group.consent {
    display: flex;
    align-items: flex-start;
}

.form-group.consent input {
    width: auto;
    margin-right: 10px;
    margin-top: 5px;
}

/* Footer */
footer {
    background-color: #1a1a1a;
    color: #f0f0f0;
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-bottom: 30px;
}

.footer-logo {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.footer-logo img {
    height: 40px;
    margin-right: 10px;
}

.footer-logo span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    flex: 2;
}

.footer-column h4 {
    margin-bottom: 15px;
    font-size: 1.1rem;
    color: var(--white);
}

.footer-column a {
    display: block;
    margin-bottom: 10px;
    color: #b0b0b0;
    transition: var(--transition);
}

.footer-column a:hover {
    color: var(--white);
}

.footer-newsletter {
    flex: 1;
    min-width: 250px;
}

.footer-newsletter h4 {
    margin-bottom: 15px;
    font-size: 1.1rem;
    color: var(--white);
}

.footer-newsletter p {
    margin-bottom: 15px;
    color: #b0b0b0;
}

.newsletter-form {
    display: flex;
    margin-bottom: 20px;
}

.newsletter-form input {
    flex: 1;
    padding: 10px 15px;
    border: none;
    border-radius: var(--radius) 0 0 var(--radius);
    font-family: inherit;
    font-size: 0.9rem;
}

.newsletter-form button {
    padding: 10px 15px;
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 0 var(--radius) var(--radius) 0;
    cursor: pointer;
    transition: var(--transition);
}

.newsletter-form button:hover {
    background-color: var(--primary-dark);
}

.payment-methods {
    display: flex;
    gap: 10px;
}

.payment-methods i {
    font-size: 1.8rem;
    color: #b0b0b0;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #333;
}

.footer-bottom p {
    color: #b0b0b0;
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.footer-bottom a {
    color: var(--primary-color);
}

/* Cookie Consent */
.cookie-consent {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--white);
    padding: 15px 25px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    z-index: 1000;
    max-width: 90%;
    width: 900px;
}

.cookie-consent p {
    font-size: 0.9rem;
}

/* Responsive Styles */
@media screen and (max-width: 992px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .hero h2 {
        font-size: 1.8rem;
    }
}

@media screen and (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .hero {
        height: 80vh;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero h2 {
        font-size: 1.5rem;
    }
    
    .product-grid,
    .reviews-container {
        grid-template-columns: 1fr;
    }
    
    .feature-showcase,
    .about-content,
    .contact-wrapper {
        flex-direction: column;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .cookie-consent {
        flex-direction: column;
        text-align: center;
    }
}

@media screen and (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.7rem;
    }
    
    .benefit-card,
    .product-card,
    .review-card {
        padding: 15px;
    }
    
    .btn-primary {
        padding: 10px 20px;
    }
}

.temu-disclaimer {
    font-size: 0.8rem;
    color: var(--light-text);
    margin-top: 10px;
    text-align: center;
}

.temu-disclaimer a {
    color: var(--light-text);
    text-decoration: underline;
}