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

/* 字体定义 */
body {
    font-family: 'Noto Serif SC', serif;
    font-size: 16px;
    line-height: 1.6;
    color: #333;
    background-color: #f8f6f3;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Noto Serif SC', serif;
    font-weight: 600;
    color: #2c2c2c;
    line-height: 1.2;
}

p {
    font-family: 'Inter', sans-serif;
    color: #666;
}

/* 容器样式 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
    /* backdrop-filter: blur(15px); */
    /* border-bottom: 1px solid rgba(255, 255, 255, 0.3); */
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    transition: all 0.4s ease;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.logo {
    display: inline-block;
}

.logo-image {
    font-size: 28px;
    font-weight: 700;
    color: #2c2c2c;
    text-decoration: none;
    letter-spacing: 2px;
    width: 160px;
    height: auto;
}

.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
}

.nav-link {
    text-decoration: none;
    color: #2c2c2c;
    font-weight: 500;
    font-size: 14px;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    text-shadow: 0 1px 3px rgba(255, 255, 255, 0.8);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #E03C33;
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: #E03C33;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: #333;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Hero区域样式 */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    background-size: cover;
    overflow: hidden;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
    padding-top: 80px;
}

.hero-text {
    flex: 1;
    z-index: 2;
}

.hero-subtitle {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: #E03C33;
    letter-spacing: 3px;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.hero-title {
    font-size: 64px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.1;
}

.hero-highlight {
    color: #E03C33;
}

.hero-description {
    font-size: 18px;
    color: #444;
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 30px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
    cursor: pointer;
    letter-spacing: 0.5px;
}

.btn-primary {
    background-color: #E03C33;
    color: white;
    border: 2px solid #E03C33;
}

.btn-primary:hover {
    background-color: #C12A20;
    border-color: #C12A20;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(224, 60, 51, 0.2);
}

.btn-secondary {
    background-color: transparent;
    color: #E03C33;
    border: 2px solid #E03C33;
}

.btn-secondary:hover {
    background-color: #E03C33;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(224, 60, 51, 0.2);
}

.btn-link {
    background-color: transparent;
    color: #E03C33;
    padding: 0;
    font-size: 16px;
    font-weight: 500;
}

.btn-link:hover {
    color: #C12A20;
    transform: translateX(5px);
}

.btn-link i {
    margin-left: 8px;
    transition: transform 0.3s ease;
}

.btn-link:hover i {
    transform: translateX(5px);
}

.channel-copy-btn {
    background-color: transparent;
    color: #E03C33;
    padding: 0;
    font-size: 16px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.channel-copy-btn:hover {
    color: #C12A20;
    transform: translateX(5px);
}

.btn-large {
    padding: 16px 40px;
    font-size: 16px;
}

.hero-image {
    flex: 1;
    position: relative;
    z-index: 2;
}

.image-container {
    position: relative;
    width: 100%;
    height: 500px;
    overflow: hidden;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.hero-decoration {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    overflow: hidden;
}

.decoration-circle {
    position: absolute;
    top: 20%;
    right: 10%;
    width: 300px;
    height: 300px;
    border: 2px solid rgba(224, 60, 51, 0.15);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
    box-shadow: 0 0 60px rgba(224, 60, 51, 0.1), inset 0 0 30px rgba(224, 60, 51, 0.05);
}

.decoration-circle::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 1px solid rgba(224, 60, 51, 0.1);
    border-radius: 50%;
    animation: rotate 25s linear infinite reverse;
}

.decoration-circle::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 150px;
    border: 1px dashed rgba(224, 60, 51, 0.2);
    border-radius: 50%;
    animation: rotate 15s linear infinite;
}

.decoration-line {
    position: absolute;
    bottom: 10%;
    right: 20%;
    width: 200px;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(224, 60, 51, 0.3), transparent);
    transform: rotate(-30deg);
    animation: shimmer 3s ease-in-out infinite;
}

.decoration-line::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 50px;
    width: 100px;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(224, 60, 51, 0.2), transparent);
    transform: rotate(-15deg);
}

.decoration-line::after {
    content: '';
    position: absolute;
    bottom: -20px;
    right: 50px;
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(224, 60, 51, 0.2), transparent);
    transform: rotate(15deg);
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes shimmer {
    0%, 100% {
        opacity: 0.3;
    }
    50% {
        opacity: 0.8;
    }
}

/* 通用区域样式 */
section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-subtitle {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: #E03C33;
    letter-spacing: 2px;
    margin-bottom: 15px;
    text-transform: uppercase;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 20px;
    color: #2c2c2c;
}

.section-description {
    font-size: 16px;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

/* 品牌故事样式 */
.brand-story {
    background-color: white;
}

.story-content {
    display: flex;
    align-items: center;
    gap: 80px;
}

.story-left {
    flex: 1;
}

.story-image {
    position: relative;
    width: 100%;
    height: 400px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 15px 45px rgba(0, 0, 0, 0.1);
}

.story-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.story-right {
    flex: 1;
}

.story-title {
    font-size: 28px;
    margin-bottom: 25px;
    color: #2c2c2c;
}

.story-text {
    font-size: 16px;
    color: #444;
    margin-bottom: 20px;
    line-height: 1.8;
}

/* 产品预览样式 */
.products-preview {
    background-color: #f8f6f3;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
}

.product-card {
    background-color: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.product-image {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

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

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(224, 60, 51, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-info {
    padding: 30px;
}

.product-name {
    font-size: 24px;
    margin-bottom: 8px;
    color: #2c2c2c;
}

.product-subtitle {
    font-size: 14px;
    color: #E03C33;
    margin-bottom: 15px;
    font-weight: 500;
}

.product-description {
    font-size: 15px;
    color: #444;
    margin-bottom: 20px;
    line-height: 1.7;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.feature {
    display: inline-block;
    padding: 6px 16px;
    background-color: #f8f8f8;
    color: #E03C33;
    font-size: 12px;
    font-weight: 500;
    border-radius: 20px;
    letter-spacing: 0.5px;
}

.products-cta {
    text-align: center;
}

/* 科学品质样式 */
.science-quality {
    background-color: white;
}

.quality-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
}

.quality-item {
    text-align: center;
    padding: 40px 20px;
    background-color: white;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.quality-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.quality-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background-color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: #E03C33;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.quality-item:hover .quality-icon {
    transform: scale(1.1);
}

.quality-title {
    font-size: 20px;
    margin-bottom: 15px;
    color: #2c2c2c;
}

.quality-description {
    font-size: 15px;
    color: #444;
    line-height: 1.7;
}

/* 用户评价样式 */
.testimonials {
    background-color: #f8f6f3;
}

.testimonials-slider {
    display: flex;
    gap: 40px;
    overflow-x: auto;
    padding: 20px 0;
    scroll-behavior: smooth;
}

.testimonials-slider::-webkit-scrollbar {
    height: 8px;
}

.testimonials-slider::-webkit-scrollbar-track {
    background: #f0f0f0;
    border-radius: 4px;
}

.testimonials-slider::-webkit-scrollbar-thumb {
    background: #E03C33;
    border-radius: 4px;
}

.testimonial-item {
    flex: 0 0 calc(100% / 3 - 27px);
    min-width: 300px;
}

.testimonial-content {
    background-color: white;
    padding: 40px 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.testimonial-content:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.testimonial-rating {
    margin-bottom: 20px;
}

.testimonial-rating i {
    font-size: 16px;
    color: #E03C33;
    margin-right: 5px;
}

.testimonial-text {
    font-size: 15px;
    color: #444;
    line-height: 1.8;
    font-style: italic;
    margin-bottom: 20px;
}

.testimonial-author {
    display: block;
    font-size: 14px;
    color: #E03C33;
    font-weight: 500;
    font-style: normal;
    margin-top: 15px;
}

/* 购买渠道样式 */
.purchase-channels {
    background-color: white;
}

.channels-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
}

.channel-card {
    text-align: center;
    padding: 40px 20px;
    background-color: white;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.channel-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.channel-icon {
    font-size: 48px;
    color: #E03C33;
    margin-bottom: 20px;
    transition: transform 0.3s ease;
}

.channel-card:hover .channel-icon {
    transform: scale(1.2);
}

.channel-name {
    font-size: 18px;
    margin-bottom: 20px;
    color: #2c2c2c;
}

/* 页脚样式 */
.footer {
    background-color: #2c2c2c;
    color: white;
    padding: 80px 0 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .logo-text {
    color: white;
    margin-bottom: 20px;
}

.footer-description {
    color: #aaa;
    font-size: 14px;
    margin-bottom: 30px;
    line-height: 1.6;
}

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

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: 50%;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
}

.social-link:hover {
    background-color: #E03C33;
    transform: translateY(-3px);
}

.social-icon-img {
    width: 24px;
    height: 24px;
    object-fit: contain;
    filter: brightness(0) invert(1);
    transition: all 0.3s ease;
}

.social-link:hover .social-icon-img {
    filter: brightness(0) invert(0);
}

.social-tooltip {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    background-color: #2c2c2c;
    color: white;
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    min-width: 150px;
}

.social-tooltip.social-tooltip-has-image {
    white-space: normal;
    padding: 12px;
}

.social-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: #2c2c2c;
}

.social-tooltip-title {
    font-weight: 600;
    margin-bottom: 4px;
    font-size: 16px;
}

.social-tooltip-desc {
    font-size: 12px;
    color: #ccc;
    line-height: 1.4;
}

.social-tooltip-copyable {
    cursor: pointer;
    position: relative;
    padding: 4px 8px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    transition: all 0.3s ease;
}

.social-tooltip-copyable:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.social-tooltip-copyable::after {
    content: '点击复制';
    position: absolute;
    top: -20px;
    right: 0;
    font-size: 10px;
    color: #E03C33;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.social-tooltip-copyable:hover::after {
    opacity: 1;
}

.social-tooltip-image {
    padding: 0;
    background-color: transparent;
}

.tooltip-image {
    max-width: 150px;
    max-height: 150px;
    display: block;
    border-radius: 4px;
}

.social-link:hover .social-tooltip {
    opacity: 1;
    visibility: visible;
    bottom: 55px;
}

.footer-title {
    font-size: 16px;
    font-weight: 600;
    color: white;
    margin-bottom: 25px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.links-list {
    list-style: none;
}

.links-list li {
    margin-bottom: 15px;
}

.links-list a {
    color: #aaa;
    text-decoration: none;
    transition: color 0.3s ease;
}

.links-list a:hover {
    color: #E03C33;
}

.contact-list {
    list-style: none;
}

.contact-list li {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.contact-list i {
    color: #E03C33;
    font-size: 18px;
    width: 20px;
    text-align: center;
}

.contact-list a {
    color: #aaa;
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-list a:hover {
    color: #E03C33;
}

.contact-list span {
    color: #aaa;
    font-size: 14px;
}

.subscribe-form {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.subscribe-form input {
    flex: 1;
    padding: 12px 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: 50px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.subscribe-form input:focus {
    outline: none;
    border-color: #E03C33;
    background-color: rgba(255, 255, 255, 0.15);
}

.subscribe-form input::placeholder {
    color: #aaa;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 40px;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    text-align: center;
}

.copyright {
    color: #aaa;
    font-size: 14px;
    
}

.footer-policies {
    display: flex;
    gap: 30px;
}

.footer-policies a {
    color: #aaa;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-policies a:hover {
    color: #E03C33;
}

/* 关于我们页面样式 */
.about-hero {
    position: relative;
    height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    color: white;
    text-align: left;
    margin-top: 0px;
}

.about-hero .container {
    max-width: 900px;
}

.about-hero h1 {
    font-size: 56px;
    color: white;
    margin-bottom: 30px;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.about-hero p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.95);
    max-width: 900px;
    line-height: 2;
    text-indent: 2em;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
}

.about-content {
    background-color: white;
    padding: 80px 0;
}

.about-section {
    margin-bottom: 80px;
}

.about-section:last-child {
    margin-bottom: 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image {
    position: relative;
    width: 100%;
    height: 400px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 15px 45px rgba(0, 0, 0, 0.1);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-text h2 {
    font-size: 32px;
    margin-bottom: 25px;
    color: #2c2c2c;
}

.about-text p {
    font-size: 16px;
    color: #666;
    margin-bottom: 20px;
    line-height: 1.8;
}

/* 产品页面样式 */
.products-hero {
    position: relative;
    height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    text-align: left;
    margin-top: 100px;
}

.products-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.products-hero > .container {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.products-hero h1 {
    font-size: 56px;
    color: white;
    margin-bottom: 30px;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.products-hero p {
    font-size: 18px;
    color: white;
    max-width: 900px;
    line-height: 2;
    text-indent: 2em;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
}

.product-detail {
    background-color: white;
    padding: 80px 0;
}

.product-detail-section {
    margin-bottom: 120px;
}

.product-detail-section:last-child {
    margin-bottom: 0;
}

.product-detail-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.product-detail-image {
    position: relative;
    width: 100%;
    height: 500px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.product-detail-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-detail-text h2 {
    font-size: 36px;
    margin-bottom: 15px;
    color: #2c2c2c;
}

.product-detail-subtitle {
    font-size: 16px;
    color: #E03C33;
    margin-bottom: 30px;
    font-weight: 500;
}

.product-detail-description {
    font-size: 16px;
    color: #444;
    margin-bottom: 30px;
    line-height: 1.8;
}

.product-ingredients {
    margin-bottom: 30px;
}

.product-ingredients h3 {
    font-size: 20px;
    margin-bottom: 15px;
    color: #2c2c2c;
}

.ingredients-list {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.ingredient-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background-color: white;
    border-radius: 25px;
    font-size: 14px;
    color: #666;
    font-weight: 500;
}

.ingredient-icon {
    width: 20px;
    height: 20px;
    background-color: #E03C33;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 10px;
}

.product-features-list {
    list-style: none;
    margin-bottom: 40px;
}

.product-features-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    font-size: 16px;
    color: #666;
}

.product-features-list i {
    color: #E03C33;
    font-size: 18px;
    width: 20px;
    text-align: center;
}

.product-price {
    font-size: 28px;
    font-weight: 700;
    color: #E03C33;
    margin-bottom: 30px;
}

/* 品质页面样式 */
.quality-hero {
    position: relative;
    height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, white 0%, #f8f8f8 100%);
    text-align: center;
    margin-top: 100px;
}

.quality-hero h1 {
    font-size: 56px;
    margin-bottom: 20px;
}

.quality-hero p {
    font-size: 18px;
    color: #666;
    max-width: 600px;
}

.quality-content {
    background-color: white;
    padding: 80px 0;
}

.quality-section {
    margin-bottom: 80px;
}

.quality-section:last-child {
    margin-bottom: 0;
}

.quality-section h2 {
    font-size: 32px;
    margin-bottom: 40px;
    text-align: center;
    color: #2c2c2c;
}

/* 用户评价页面头部 */
.testimonials-hero {
    position: relative;
    height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    text-align: left;
    margin-top: 100px;
}

.testimonials-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.testimonials-hero > .container {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.testimonials-hero h1 {
    font-size: 56px;
    margin-bottom: 30px;
    color: white;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.testimonials-hero p {
    font-size: 18px;
    color: white;
    max-width: 900px;
    line-height: 2;
    text-indent: 2em;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
}

/* 购买渠道页面头部 */
.purchase-hero {
    position: relative;
    height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    text-align: left;
    margin-top: 100px;
}

.purchase-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.purchase-hero > .container {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.purchase-hero h1 {
    font-size: 56px;
    margin-bottom: 30px;
    color: white;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.purchase-hero p {
    font-size: 18px;
    color: white;
    max-width: 900px;
    line-height: 2;
    text-indent: 2em;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
}

/* 联系我们页面头部 */
.contact-hero {
    position: relative;
    height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    text-align: left;
    margin-top: 100px;
}

.contact-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.contact-hero > .container {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.contact-hero h1 {
    font-size: 56px;
    margin-bottom: 30px;
    color: white;
    font-weight: 700;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.contact-hero p {
    font-size: 18px;
    color: white;
    max-width: 900px;
    line-height: 2;
    text-indent: 2em;
    text-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
}

.quality-certificates {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.certificate-item {
    background-color: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
}

.certificate-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.certificate-icon {
    font-size: 48px;
    color: #E03C33;
    margin-bottom: 20px;
}

.certificate-title {
    font-size: 20px;
    margin-bottom: 15px;
    color: #2c2c2c;
}

.certificate-description {
    font-size: 15px;
    color: #666;
    line-height: 1.7;
}

.image-modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.9);
    animation: fadeIn 0.3s ease;
}

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

.image-modal-content {
    margin: auto;
    display: block;
    width: 80%;
    max-width: 600px;
    max-height: 80vh;
    object-fit: contain;
    animation: zoomIn 0.3s ease;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

@keyframes zoomIn {
    from { transform: translate(-50%, -50%) scale(0.8); opacity: 0; }
    to { transform: translate(-50%, -50%) scale(1); opacity: 1; }
}

.image-modal-close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    transition: 0.3s;
    cursor: pointer;
    z-index: 10001;
}

.image-modal-close:hover,
.image-modal-close:focus {
    color: #E03C33;
    text-decoration: none;
    cursor: pointer;
}

.tooltip-image {
    cursor: pointer;
    transition: transform 0.3s ease;
}

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

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 52px;
    }
    
    .hero-content {
        gap: 40px;
    }
    
    .story-content {
        gap: 40px;
    }
    
    .product-detail-content {
        gap: 50px;
    }
    
    .about-grid {
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: white;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 30px;
        transition: left 0.3s ease;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 40px;
        padding-top: 60px;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .hero-buttons {
        justify-content: center;
    }

    .hero-image {
        width: 90%;
        max-width: 400px;
    }
    
    .image-container {
        height: 300px;
        border-radius: 15px;
        box-shadow: 0 15px 45px rgba(0, 0, 0, 0.1);
    }
    
    .image-container img {
        object-fit: cover;
        width: 100%;
        height: 100%;
    }

    .about-image {
        width: 100%;
        height: auto;
        position: relative;
        overflow: hidden;
        margin: 0;
        padding: 0;
    }

    .about-image .image-container {
        width: 100%;
        height: auto;
        display: flex;
        align-items: flex-start;
        justify-content: center;
        margin: 0;
        padding: 0;
    }

    .about-image img {
        object-fit: contain;
        width: 100%;
        height: auto;
        max-width: 100%;
        max-height: 100%;
        display: block;
        vertical-align: top;
        margin: 0;
        padding: 0;
    }

    .about-hero {
        margin-top: 50px;
    }

    .hero-title {
        margin-top: 120px;
    }
    
    .story-content {
        flex-direction: column;
    }
    
    .story-right {
        order: -1;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonial-item {
        flex: 0 0 100%;
    }
    
    .product-detail-image {
        height: auto;
        max-height: 400px;
    }
    
    .product-detail-image img {
        object-fit: contain;
        height: auto;
        display: block;
    }
    
    .product-detail-content {
        flex-direction: column;
    }
    
    .product-detail-left,
    .product-detail-right {
        width: 100%;
    }
    
    .product-detail-left {
        margin-bottom: 30px;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-text {
        order: -1;
    }
    
    .product-detail-content {
        grid-template-columns: 1fr;
    }
    
    .product-detail-text {
        order: -1;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-policies {
        justify-content: center;
    }
    
    .subscribe-form {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .navbar {
        background: rgba(255, 255, 255, 0.99);
    }
    
    .navbar .container {
        padding: 8px 12px;
    }
    
    .logo-image {
        width: 100px;
    }
    
    .nav-links {
        top: 50px;
        height: calc(100vh - 50px);
        gap: 20px;
    }
    
    .nav-link {
        font-size: 16px;
    }
    
    .hero {
        padding-top: 100px;
        min-height: calc(100vh - 50px);
    }
    
    .hero-content {
        gap: 25px;
        padding-top: 30px;
        padding-bottom: 50px;
    }
    
    .hero-title {
        font-size: 28px;
        line-height: 1.3;
    }
    
    .hero-subtitle {
        font-size: 12px;
        margin-bottom: 15px;
    }
    
    .hero-description {
        font-size: 14px;
        line-height: 1.6;
        margin-bottom: 25px;
        padding: 0 15px;
    }
    
    .hero-buttons {
        gap: 12px;
    }
    
    .btn {
        padding: 8px 20px;
        font-size: 12px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .section-subtitle {
        font-size: 10px;
        margin-bottom: 10px;
    }
    
    .section-description {
        font-size: 14px;
        padding: 0 15px;
    }
    
    .story-title {
        font-size: 22px;
    }
    
    .story-text {
        font-size: 14px;
        line-height: 1.6;
        padding: 0 15px;
    }
    
    .product-name {
        font-size: 20px;
    }

    .about-hero {
        margin-top: 50px;
    }
    
    .about-hero h1,
    .products-hero h1,
    .quality-hero h1 {
        font-size: 28px;
        margin-bottom: 15px;
        padding: 0 15px;
    }
    
    .about-hero p {
        font-size: 14px;
        max-width: 100%;
        padding: 0 15px;
        text-indent: 1.5em;
        line-height: 1.6;
    }
    
    .products-hero p {
        font-size: 14px;
        max-width: 100%;
        padding: 0 15px;
        line-height: 1.6;
    }
    
    .testimonials-hero h1,
    .purchase-hero h1,
    .contact-hero h1 {
        font-size: 28px;
        margin-bottom: 15px;
        padding: 0 15px;
    }
    
    .products-hero p,
    .testimonials-hero p,
    .purchase-hero p,
    .contact-hero p {
        font-size: 14px;
        max-width: 100%;
        padding: 0 15px;
        text-indent: 1.5em;
        line-height: 1.6;
    }
    
    .product-detail-text h2 {
        font-size: 24px;
    }
    
    .hero-image {
        width: 95%;
        max-width: 320px;
    }
    
    .image-container {
        height: 250px;
        border-radius: 12px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    }
    
    .image-container img {
        object-fit: cover;
        width: 100%;
        height: 100%;
    }

    .products-hero{
        margin-top: 0px;
    }

    .testimonials-hero{
        margin-top: 0px;
    }

    .purchase-hero{
        margin-top: 0px;
    }

    .contact-hero{
        margin-top: 0px;
    }
}

/* 动画效果 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

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

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 导航栏滚动效果 */
.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(20px);
}

.navbar.scrolled .nav-link {
    color: #2c2c2c;
    text-shadow: none;
}

.navbar.scrolled .nav-link:hover,
.navbar.scrolled .nav-link.active {
    color: #E03C33;
}