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

/* 基础字体大小设置，确保文字大小能随设备默认设置调整 */
html {
    /* 使用相对单位，1rem = 16px（浏览器默认），但会随设备设置调整 */
    font-size: 100%;
    /* 禁用文字缩放，确保用户设置的字体大小生效 */
    -webkit-text-size-adjust: 100%;
    -moz-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: var(--font-chinese), var(--font-english), sans-serif;
    font-size: 1rem; /* 继承html的字体大小，默认16px，但会随设备设置调整 */
    line-height: 1.6;
    color: var(--black);
    background-color: var(--white);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

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

ul {
    list-style: none;
}

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

.top-bar {
    width: 100%;
    height: 40px;
    background-color: var(--white);
    border-bottom: 1px solid var(--silver);
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.language-switch {
    font-size: 12px;
    color: var(--black);
}

.language-switch span {
    cursor: pointer;
}

.language-switch span:hover {
    color: var(--primary-red);
}

.top-links {
    display: flex;
    gap: 30px;
}

.top-links a {
    font-size: 12px;
    color: var(--black);
}

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

.main-nav {
    width: 100%;
    height: 80px;
    background-color: var(--white);
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
    transition: background-color var(--transition-normal);
}

.main-nav.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.main-nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo img {
    width: 70px;
    height: 70px;
    object-fit: contain;
    border-radius: 8px;
}

.company-name {
    font-size: 16px;
    font-weight: bold;
    color: var(--black);
    white-space: nowrap;
}

.nav-menu ul {
    display: flex;
    gap: 40px;
    align-items: center;
}

.nav-menu > ul > li {
    position: relative;
}

.nav-menu > ul > li > a {
    font-size: 16px;
    font-weight: bold;
    color: var(--black);
    padding: 33px 0;
    display: block;
    text-align: center;
}

.nav-menu > ul > li > a:hover {
    color: var(--primary-red);
}

.mall-btn {
    background-color: var(--primary-red);
    color: var(--white);
    padding: 8px 30px;
    border-radius: 20px;
    font-weight: bold;
    transition: all var(--transition-fast);
    min-width: 80px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 4px;
}

.cart-icon {
    color: var(--primary-red);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    transition: all var(--transition-fast);
    margin-top: 4px;
}

.cart-icon img {
    width: 30px;
    height: 30px;
    display: block;
}

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

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(15px);
    background-color: var(--white);
    min-width: 200px;
    padding: 15px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    gap: 4px;
    border-radius: 8px;
    z-index: 1000;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-menu li {
    width: 100%;
}

.dropdown-menu li a {
    display: block;
    padding: 18px 25px;
    font-size: 14px;
    color: var(--black);
    background-color: var(--white);
    border-radius: 8px;
    transition: all var(--transition-fast);
    text-align: center;
    font-weight: 500;
    border: 1px solid transparent;
}

.dropdown-menu li a:hover {
    background-color: var(--primary-red);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(200, 16, 46, 0.25);
    border-color: var(--primary-red);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
    z-index: 1002;
    position: relative;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--black);
    transition: all var(--transition-fast);
}

.hamburger:hover span {
    background-color: var(--primary-red);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

.banner-carousel {
    width: 100%;
    height: 800px;
    margin-top: 80px;
    position: relative;
    overflow: hidden;
}

.carousel-container {
    width: 100%;
    height: 100%;
    position: relative;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal);
}

.carousel-slide.active {
    opacity: 1;
    visibility: visible;
}

.carousel-content {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

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

.carousel-text {
    position: absolute;
    top: 15%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    text-align: center;
    color: var(--white);
    max-width: 800px;
}

.carousel-slide.active .carousel-text h2 {
    animation: slideDown 0.8s ease-out forwards;
    opacity: 0;
    transform: translateY(-50px);
}

.carousel-slide.active .carousel-text p {
    animation: slideDown 0.8s ease-out 0.3s forwards;
    opacity: 0;
    transform: translateY(-50px);
}

.carousel-slide.active .carousel-text .btn {
    animation: fadeIn 0.8s ease-out 0.6s forwards;
    opacity: 0;
}

.carousel-text h2 {
    font-size: 42px;
    font-weight: bold;
    margin-bottom: 15px;
    text-shadow: 3px 3px 12px rgba(0, 0, 0, 0.9),
                 -1px -1px 8px rgba(0, 0, 0, 0.7);
}

.carousel-text p {
    font-size: 18px;
    margin-bottom: 25px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.8),
                 -1px -1px 6px rgba(0, 0, 0, 0.6);
}

@keyframes slideDown {
    0% {
        opacity: 0;
        transform: translateY(-50px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    font-size: 16px;
    font-weight: bold;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
}

.btn-primary {
    background-color: transparent;
    color: var(--primary-red);
    border: 2px solid var(--primary-red);
    text-shadow: none;
    box-shadow: none;
}

.btn-primary:hover {
    background-color: var(--primary-red);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-red);
    border: 2px solid var(--primary-red);
}

.btn-outline:hover {
    background-color: var(--primary-red);
    color: var(--white);
}

.carousel-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--white);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.indicator.active {
    background-color: var(--primary-red);
    transform: scale(1.2);
}

.carousel-prev,
.carousel-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 50px;
    height: 50px;
    background-color: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    z-index: 10;
}

.carousel-prev {
    left: 20px;
}

.carousel-next {
    right: 20px;
}

.carousel-prev:hover,
.carousel-next:hover {
    background-color: var(--primary-red);
    color: var(--white);
    transform: translateY(-50%) scale(1.1);
}

.carousel-prev span,
.carousel-next span {
    font-size: 24px;
    color: var(--black);
    transition: color var(--transition-fast);
}

.carousel-prev:hover span,
.carousel-next:hover span {
    color: var(--white);
}

.quick-access {
    width: 100%;
    height: 200px;
    background-color: var(--white);
    padding: 40px 0;
}

.quick-access .container {
    display: flex;
    gap: 20px;
}

.quick-card {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 30px;
    background-color: var(--light-gray);
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.quick-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.quick-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 15px;
}

.quick-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.quick-card h3 {
    font-size: 18px;
    font-weight: bold;
    color: var(--black);
}

.featured-products {
    width: 100%;
    min-height: 600px;
    background-color: var(--light-gray);
    padding: 60px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 32px;
    font-weight: bold;
    color: var(--primary-red);
    margin-bottom: 10px;
}

.section-title p {
    font-size: 14px;
    color: var(--black);
    letter-spacing: 3px;
    text-transform: uppercase;
}

.product-carousel {
    position: relative;
}

.product-slide {
    display: none;
}

.product-slide.active {
    display: block;
}

.product-content {
    display: flex;
    gap: 40px;
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.product-image {
    width: 55%;
    height: 500px;
}

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

.product-info {
    width: 45%;
    padding: 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
}

.product-info h3 {
    font-size: 28px;
    font-weight: bold;
    color: var(--black);
    margin-bottom: 15px;
}

.product-info > p {
    font-size: 16px;
    color: var(--black);
    margin-bottom: 20px;
}

.product-info ul {
    margin-bottom: 30px;
    list-style: none;
    padding: 0;
}

.product-info ul li {
    font-size: 14px;
    color: var(--black);
    padding: 8px 0;
    position: relative;
}

.product-info ul li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-red);
    font-weight: bold;
}

.product-indicators {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 30px;
}

.product-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--silver);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.product-indicator.active {
    background-color: var(--primary-red);
    transform: scale(1.2);
}

.solutions {
    width: 100%;
    min-height: 500px;
    background-color: var(--white);
    padding: 60px 0;
}

.solution-cards {
    display: flex;
    gap: 30px;
}

.solution-card {
    flex: 1;
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 2px solid transparent;
}

.solution-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(200, 16, 46, 0.3);
    border-color: var(--primary-red);
}

.solution-image {
    height: 200px;
    overflow: hidden;
}

.solution-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.solution-card:hover .solution-image img {
    transform: scale(1.1);
}

.solution-info {
    padding: 25px;
}

.solution-info h3 {
    font-size: 20px;
    font-weight: bold;
    color: var(--black);
    margin-bottom: 15px;
}

.solution-info p {
    font-size: 14px;
    color: var(--black);
    line-height: 1.6;
    margin-bottom: 20px;
}

.solution-info a {
    font-size: 14px;
    color: var(--primary-red);
    font-weight: bold;
}

.advantages {
    width: 100%;
    min-height: 150px;
    background-color: var(--white);
    padding: 60px 0;
    border-top: 1px solid var(--light-gray);
    border-bottom: 1px solid var(--light-gray);
}

.advantages .container {
    display: flex;
    gap: 30px;
}

.advantage-card {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    color: var(--black);
    text-align: center;
}

.advantage-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
}

.advantage-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: none;
    color: var(--primary-red);
}

.advantage-card h3 {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 15px;
}

.advantage-card p {
    font-size: 14px;
    text-align: center;
    line-height: 1.6;
}

.footer {
    width: 100%;
    min-height: 350px;
    background-color: var(--white);
    padding: 80px 0 30px;
    border-top: 3px solid var(--primary-red);
}

.footer .container {
    display: flex;
    gap: 60px;
    margin-bottom: 50px;
    align-items: flex-start;
}

.footer-column {
    flex: 1;
}

.footer-column h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-red);
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 12px;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: var(--primary-red);
}

.footer-column p {
    font-size: 15px;
    color: var(--black);
    line-height: 2.2;
    margin-bottom: 8px;
}

.footer-column ul li {
    margin-bottom: 12px;
}

.footer-column ul li a {
    font-size: 15px;
    color: var(--black);
    display: inline-block;
    transition: all 0.3s ease;
}

.footer-column ul li a:hover {
    color: var(--primary-red);
}

/* 社交媒体和二维码样式 */
.social-links {
    margin-bottom: 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.social-links p {
    font-size: 14px;
    color: var(--black);
    margin: 0;
}

.qr-codes-container {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
}

.qr-code-item {
    text-align: center;
}

.qr-code-item img {
    width: 80px;
    height: 80px;
    margin-bottom: 10px;
}

.qr-code-item span {
    font-size: 13px;
    color: var(--black);
}

.social-item {
    position: relative;
    display: inline-block;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    background-color: var(--light-gray);
    color: var(--black);
    border-radius: 6px;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.social-link:hover {
    background-color: var(--primary-red);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(200, 16, 46, 0.3);
}

.purchase-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.purchase-form input,
.purchase-form textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--silver);
    border-radius: 4px;
    background-color: var(--white);
    color: var(--black);
    font-size: 14px;
    font-family: inherit;
}

.purchase-form input:focus,
.purchase-form textarea:focus {
    outline: none;
    border-color: var(--primary-red);
}

.purchase-form button {
    width: 100%;
}

.form-message {
    margin-top: 10px;
    font-size: 14px;
    color: var(--primary-red);
    text-align: center;
    display: none;
}

.form-message.show {
    display: block;
}

.footer-bottom {
    border-top: 1px solid var(--light-gray);
    padding-top: 20px;
}

.footer-bottom p {
    font-size: 12px;
    color: var(--black);
    text-align: center;
}

.page-header {
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--dark-red) 100%);
    color: var(--white);
    padding: 60px 0;
    padding-top: 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-header#top {
    scroll-margin-top: -80px;
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.3) 20%, 
        rgba(255, 255, 255, 0.5) 50%, 
        rgba(255, 255, 255, 0.3) 80%, 
        transparent 100%);
}

.page-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.3) 20%, 
        rgba(255, 255, 255, 0.5) 50%, 
        rgba(255, 255, 255, 0.3) 80%, 
        transparent 100%);
}

.page-header h1 {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 10px;
    position: relative;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2),
                 -1px -1px 2px rgba(0, 0, 0, 0.1);
}

.page-header h1::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, 
        var(--white) 0%, 
        rgba(255, 255, 255, 0.6) 100%);
    margin: 15px auto 0;
    border-radius: 2px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.page-header p {
    font-size: 18px;
    opacity: 0.9;
    position: relative;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.15);
}

.product-categories {
    padding: 60px 0;
}

.category-section {
    margin-bottom: 60px;
    display: none;
}

.category-section.active {
    display: block;
    animation: fadeIn 0.3s ease-in-out;
}

.category-section .section-title {
    text-align: center;
    margin-bottom: 30px;
}

.category-section .section-title h3 {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-red);
    margin-bottom: 10px;
}

.category-section .section-title p {
    font-size: 14px;
    color: var(--silver);
}

.category-tabs {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
    justify-content: center;
    flex-wrap: wrap;
}

.category-tab {
    padding: 12px 30px;
    font-size: 16px;
    font-weight: 600;
    border: 2px solid var(--light-gray);
    background-color: transparent;
    color: var(--black);
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.category-tab.active {
    background-color: var(--primary-red);
    color: var(--white);
    border-color: var(--primary-red);
}

.category-tab:hover {
    background-color: var(--light-gray);
}

.category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.category-card {
    background-color: var(--white);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-fast);
    overflow: hidden;
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.category-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
    border-radius: 8px;
    margin-bottom: 20px;
    background-color: var(--light-gray);
}

.category-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-fast);
}

.category-card:hover .category-image img {
    transform: scale(1.1);
}

.category-content {
    text-align: center;
}

.category-content h3 {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-red);
    margin-bottom: 8px;
}

.category-subtitle {
    display: none;
}

.category-description {
    font-size: 14px;
    color: var(--black);
    line-height: 1.8;
    margin-bottom: 20px;
}

.product-showcase {
    padding: 60px 0;
}

.showcase-title {
    text-align: center;
    margin-bottom: 40px;
}

.showcase-title h2 {
    font-size: 32px;
    font-weight: bold;
    color: var(--black);
    margin-bottom: 10px;
}

.showcase-title p {
    font-size: 16px;
    color: var(--silver);
}

.showcase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 30px;
}

.showcase-item {
    background-color: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: all var(--transition-fast);
}

.showcase-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.showcase-image {
    width: 100%;
    height: 300px;
    overflow: hidden;
}

.showcase-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-fast);
}

.showcase-item:hover .showcase-image img {
    transform: scale(1.1);
}

.showcase-info {
    padding: 30px;
}

.showcase-info h3 {
    font-size: 20px;
    font-weight: bold;
    color: var(--black);
    margin-bottom: 15px;
}

.showcase-info > p {
    font-size: 14px;
    color: var(--silver);
    line-height: 1.8;
    margin-bottom: 20px;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    padding: 8px 0 8px 15px;
    font-size: 14px;
    color: var(--silver);
    position: relative;
}

.feature-list li:before {
    content: "✓";
    color: var(--primary-red);
    font-weight: bold;
    margin-right: 8px;
}

.contact-section {
    padding: 80px 0;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.info-card {
    display: flex;
    gap: 20px;
    padding: 25px;
    background-color: var(--white);
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-fast);
    width: 100%;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.info-icon img {
    width: 60px;
    height: 60px;
    border-radius: 8px;
    flex-shrink: 0;
}

.info-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-red);
    margin-bottom: 12px;
}

.info-content p {
    font-size: 14px;
    color: var(--black);
    line-height: 1.8;
    margin-bottom: 5px;
}

.contact-form-wrapper {
    background-color: var(--white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.form-header {
    margin-bottom: 30px;
}

.form-header h2 {
    font-size: 24px;
    font-weight: 600;
    color: var(--primary-red);
    margin-bottom: 10px;
}

.form-header p {
    font-size: 14px;
    color: var(--silver);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--black);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 16px;
    border: 1px solid var(--silver);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    transition: all var(--transition-fast);
    background-color: var(--white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-red);
    box-shadow: 0 0 0 3px rgba(200, 16, 46, 0.1);
}

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

.btn-block {
    width: 100%;
    margin-top: 10px;
}

.map-section {
    margin-top: 60px;
}

.map-header {
    text-align: center;
    margin-bottom: 30px;
}

.map-header h2 {
    font-size: 28px;
    font-weight: 600;
    color: var(--primary-red);
    margin-bottom: 10px;
}

.map-header p {
    font-size: 16px;
    color: var(--silver);
}

.map-container {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.map-container img {
    width: 100%;
    height: auto;
    display: block;
}

.solutions-section {
    padding: 80px 0;
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.solution-card {
    background-color: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
}

.solution-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.solution-image {
    width: 100%;
    height: 500px;
    overflow: hidden;
}

.solution-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-fast);
}

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

.solution-content {
    padding: 35px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.solution-content h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-red);
    margin-bottom: 8px;
}

.solution-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 20px;
}

.solution-content > p {
    font-size: 15px;
    color: var(--silver);
    line-height: 1.8;
    margin-bottom: 25px;
}

.solution-features {
    list-style: none;
    padding: 0;
    margin-bottom: 30px;
}

.solution-features li {
    padding: 10px 0 10px 25px;
    font-size: 15px;
    color: var(--black);
    position: relative;
    line-height: 1.6;
}

.solution-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 10px;
    color: var(--primary-red);
    font-weight: bold;
    font-size: 16px;
}

.about-section {
    padding: 80px 0;
}

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

.intro-image {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.intro-image img {
    width: 100%;
    height: auto;
    display: block;
}

.intro-content h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-red);
    margin-bottom: 25px;
}

.intro-content > p {
        font-size: 16px;
        color: var(--black);
        line-height: 1.8;
        margin-bottom: 20px;
    }

    /* About页面文字颜色修改 */
    .mission-card > p,
    .timeline-content > p,
    .team-content > p,
    .news-content > p {
        color: var(--black);
    }

    /* 修改section-title的副标题颜色 */
    .section-title p {
        color: var(--black);
        opacity: 0.8;
    }

.company-stats {
    display: flex;
    gap: 40px;
    margin-top: 30px;
}

.stat-item {
    text-align: center;
    flex: 1;
}

.stat-number {
    display: block;
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-red);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 16px;
    color: var(--silver);
}

.mission-section {
    padding: 80px 0;
    background-color: var(--light-gray);
}

.mission-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.mission-card {
    background-color: var(--white);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-fast);
}

.mission-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.mission-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
}

.mission-icon img {
    width: 100%;
    height: 100%;
    display: block;
}

.mission-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 15px;
}

.mission-card > p {
    font-size: 15px;
    color: var(--black);
    line-height: 1.6;
}

.history-section {
    padding: 80px 0;
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 0;
    bottom: 0;
    width: 3px;
    background-color: var(--primary-red);
}

.timeline-item {
    display: flex;
    gap: 40px;
    margin-bottom: 40px;
    position: relative;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-item:nth-child(odd) .timeline-content {
    text-align: left;
}

.timeline-item:nth-child(even) .timeline-content {
    text-align: right;
}

.timeline-year {
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    background-color: var(--primary-red);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    position: relative;
    z-index: 2;
}

.timeline-content {
    flex: 1;
    padding: 20px;
    background-color: var(--white);
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.timeline-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-red);
    margin-bottom: 12px;
}

.timeline-content > p {
    font-size: 15px;
    color: var(--black);
    line-height: 1.6;
}

.team-section {
    padding: 80px 0;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.qualification-section {
    padding: 80px 0;
    background-color: var(--white);
}

.qualification-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.qualification-item {
    text-align: center;
}

.qualification-image {
    background-color: var(--gray-bg);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 15px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.qualification-image:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.12);
}

.qualification-image img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

.team-card {
    background-color: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-fast);
}

.team-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.team-image {
    width: 100%;
    height: 300px;
    overflow: hidden;
}

.team-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-fast);
}

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

.team-content {
    padding: 25px;
}

.team-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 12px;
}

.team-content > p {
    font-size: 15px;
    color: var(--black);
    line-height: 1.6;
}

.join-cta {
    text-align: center;
    padding: 60px 40px;
    background-color: var(--white);
    border-radius: 12px;
    margin-top: 40px;
}

.join-cta h3 {
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-red);
    margin-bottom: 15px;
}

.join-cta > p {
    font-size: 16px;
    color: var(--silver);
    margin-bottom: 30px;
}

.job-positions {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.job-card {
    background-color: var(--white);
    padding: 25px;
    border-radius: 8px;
    border: 2px solid var(--light-gray);
    transition: all var(--transition-fast);
}

.job-card:hover {
    border-color: var(--primary-red);
    transform: translateY(-3px);
}

.job-card h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 10px;
}

.job-card > p {
    font-size: 14px;
    color: var(--silver);
    margin-bottom: 15px;
}

.job-tag {
    display: inline-block;
    padding: 4px 12px;
    background-color: var(--light-gray);
    color: var(--black);
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.btn-large {
    padding: 15px 40px;
    font-size: 18px;
}

.news-section {
    padding: 80px 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.news-card {
    background-color: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-fast);
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.news-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-fast);
}

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

.news-content {
    padding: 25px;
}

.news-date {
    display: block;
    font-size: 14px;
    color: var(--primary-red);
    font-weight: 500;
    margin-bottom: 12px;
}

.news-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-content > p {
    font-size: 14px;
    color: var(--black);
    line-height: 1.6;
    margin-bottom: 20px;
}

.read-more {
    display: inline-block;
    color: var(--primary-red);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.read-more:hover {
    color: var(--dark-red);
}

.service-section {
    padding: 50px 0;
}

.service-intro {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 25px;
    align-items: start;
    margin-bottom: 40px;
}

.intro-icon {
    width: 100px;
    height: 100px;
    border-radius: 12px;
    overflow: hidden;
}

.intro-icon img {
    width: 100%;
    height: 100%;
    display: block;
}

.intro-content h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-red);
    margin-bottom: 15px;
}

.intro-content > p {
    font-size: 15px;
    color: var(--black);
    line-height: 1.6;
}

.service-process {
    background-color: var(--white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    margin-bottom: 30px;
}

.process-title {
    text-align: center;
    margin-bottom: 30px;
}

.process-title h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-red);
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.process-step {
    text-align: center;
    padding: 15px;
}

.step-number {
    width: 60px;
    height: 60px;
    background-color: var(--primary-red);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    margin: 0 auto 15px;
}

.process-step h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 10px;
}

.process-step > p {
    font-size: 14px;
    color: var(--black);
}

.service-cta {
    text-align: center;
    margin-top: 40px;
}

.progress-search {
    background-color: var(--white);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    margin-bottom: 40px;
}

.search-form {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.search-form .form-group {
    flex: 1;
}

.search-form .form-group input {
    width: 100%;
}

.progress-result {
    display: none;
}

.progress-result.show {
    display: block;
}

.result-card {
    background-color: var(--light-gray);
    padding: 25px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-red);
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--silver);
}

.result-status {
    display: inline-block;
    padding: 6px 16px;
    background-color: var(--primary-red);
    color: var(--white);
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
}

.result-date {
    font-size: 14px;
    color: var(--silver);
}

.result-content h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 10px;
}

.result-content > p {
    font-size: 15px;
    color: var(--black);
    line-height: 1.6;
}

.policy-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.policy-card {
    background-color: var(--white);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-fast);
    text-align: center;
}

.policy-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.policy-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 15px;
}

.policy-icon img {
    width: 100%;
    height: 100%;
    display: block;
    margin: 0 auto;
}

.policy-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-red);
    margin-bottom: 12px;
    text-align: center;
}

.policy-card > p {
    font-size: 14px;
    color: var(--black);
    line-height: 1.6;
    text-align: center;
}

.training-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.training-card {
    background-color: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-fast);
}

.training-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.training-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.training-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-fast);
}

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

.training-content {
    padding: 20px;
}

.training-content h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 12px;
}

.training-content > p {
    font-size: 14px;
    color: var(--black);
    line-height: 1.6;
    margin-bottom: 15px;
}

.training-features {
    list-style: none;
    padding: 0;
    margin-bottom: 15px;
}

.training-features li {
    padding: 6px 0 6px 20px;
    font-size: 13px;
    color: var(--black);
    position: relative;
}

.training-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 6px;
    color: var(--primary-red);
    font-weight: bold;
    font-size: 12px;
}

.training-info {
    display: flex;
    align-items: center;
    gap: 8px;
    padding-top: 12px;
    border-top: 1px solid var(--light-gray);
}

.info-label {
    font-size: 13px;
    color: var(--silver);
}

.info-value {
    font-size: 15px;
    font-weight: 600;
    color: var(--primary-red);
}

.training-cta {
    text-align: center;
    padding: 30px;
    background-color: var(--white);
    border-radius: 12px;
}

.training-cta h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-red);
    margin-bottom: 8px;
}

.training-cta > p {
    font-size: 14px;
    color: var(--silver);
    margin-bottom: 20px;
}

.feedback-form-wrapper {
    background-color: var(--white);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.feedback-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.feedback-message {
    margin-top: 15px;
    padding: 12px;
    background-color: var(--light-gray);
    border-radius: 8px;
    font-size: 13px;
    color: var(--primary-red);
    text-align: center;
    display: none;
}

.feedback-message.show {
    display: block;
}

.product-detail-section {
    padding: 80px 0;
}

/* 产品详情页动画效果 */

/* 页面加载动画 */
.product-detail-wrapper {
    opacity: 0;
    animation: fadeInUp 1s ease forwards;
}

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

/* 图片容器动画 */
.product-images {
    animation: slideInLeft 1s ease forwards 0.2s;
    opacity: 0;
}

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

/* 内容容器动画 */
.product-detail-content {
    animation: slideInRight 1s ease forwards 0.4s;
    opacity: 0;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 标签页按钮动画 */
.tab-btn {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.tab-btn:hover {
    background-color: var(--light-gray);
    transform: translateY(-2px);
}

.tab-btn.active {
    animation: pulse 0.5s ease;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

/* 标签内容动画 */
.tab-content {
    display: none;
    animation: fadeInUp 0.6s ease;
}

/* 特性项目动画 */
.overview-features {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.6s;
}

.feature-item {
    transition: all 0.3s ease;
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
}

.feature-item:nth-child(1) {
    animation-delay: 0.7s;
}

.feature-item:nth-child(2) {
    animation-delay: 0.8s;
}

.feature-item:nth-child(3) {
    animation-delay: 0.9s;
}

.feature-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

/* 技术规格表格动画 */
.specs-list {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.6s;
}

.specs-list li {
    opacity: 0;
    animation: fadeInLeft 0.6s ease forwards;
}

.specs-list li:nth-child(1) { animation-delay: 0.7s; }
.specs-list li:nth-child(2) { animation-delay: 0.75s; }
.specs-list li:nth-child(3) { animation-delay: 0.8s; }
.specs-list li:nth-child(4) { animation-delay: 0.85s; }
.specs-list li:nth-child(5) { animation-delay: 0.9s; }
.specs-list li:nth-child(6) { animation-delay: 0.95s; }
.specs-list li:nth-child(7) { animation-delay: 1s; }
.specs-list li:nth-child(8) { animation-delay: 1.05s; }
.specs-list li:nth-child(9) { animation-delay: 1.1s; }
.specs-list li:nth-child(10) { animation-delay: 1.15s; }
.specs-list li:nth-child(11) { animation-delay: 1.2s; }
.specs-list li:nth-child(12) { animation-delay: 1.25s; }
.specs-list li:nth-child(13) { animation-delay: 1.3s; }
.specs-list li:nth-child(14) { animation-delay: 1.35s; }
.specs-list li:nth-child(15) { animation-delay: 1.4s; }
.specs-list li:nth-child(16) { animation-delay: 1.45s; }
.specs-list li:nth-child(17) { animation-delay: 1.5s; }
.specs-list li:nth-child(18) { animation-delay: 1.55s; }
.specs-list li:nth-child(19) { animation-delay: 1.6s; }
.specs-list li:nth-child(20) { animation-delay: 1.65s; }
.specs-list li:nth-child(21) { animation-delay: 1.7s; }
.specs-list li:nth-child(22) { animation-delay: 1.75s; }
.specs-list li:nth-child(23) { animation-delay: 1.8s; }
.specs-list li:nth-child(24) { animation-delay: 1.85s; }
.specs-list li:nth-child(25) { animation-delay: 1.9s; }

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

/* FAQ项目动画 */
.faq-list {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.6s;
}

.faq-item {
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-item:nth-child(1) { animation-delay: 0.7s; }
.faq-item:nth-child(2) { animation-delay: 0.8s; }
.faq-item:nth-child(3) { animation-delay: 0.9s; }
.faq-item:nth-child(4) { animation-delay: 1s; }
.faq-item:nth-child(5) { animation-delay: 1.1s; }

.faq-item:hover {
    transform: translateY(-5px) scale(1.01);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.12);
}

/* 图片画廊动画 */
.additional-images {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 0.8s;
}

.additional-image-item {
    opacity: 0;
    animation: fadeInScale 0.6s ease forwards;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.additional-image-item:nth-child(1) { animation-delay: 0.9s; }
.additional-image-item:nth-child(2) { animation-delay: 0.95s; }
.additional-image-item:nth-child(3) { animation-delay: 1s; }
.additional-image-item:nth-child(4) { animation-delay: 1.05s; }
.additional-image-item:nth-child(5) { animation-delay: 1.1s; }
.additional-image-item:nth-child(6) { animation-delay: 1.15s; }

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.additional-image-item:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

/* 按钮动画 */
.product-actions {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards 1s;
}

.btn {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 8px 16px rgba(200, 16, 46, 0.3);
}

/* 相关产品动画 */
.related-products-section {
    opacity: 0;
    animation: fadeInUp 1s ease forwards 1.2s;
}

.related-product-card {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.related-product-card:nth-child(1) { animation-delay: 1.3s; }
.related-product-card:nth-child(2) { animation-delay: 1.4s; }
.related-product-card:nth-child(3) { animation-delay: 1.5s; }

.related-product-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

/* 标签页内容动画 */
.tab-content.active {
    display: block;
    animation: tabContentFadeIn 0.5s ease forwards;
}

@keyframes tabContentFadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 图片切换动画 */
.main-product-image img {
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 加载状态动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--light-gray);
    border-radius: 50%;
    border-top-color: var(--primary-red);
    animation: spin 1s ease-in-out infinite;
}

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

.product-detail-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.product-images {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.main-product-image {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.main-product-image img {
    width: 100%;
    height: auto;
    display: block;
}

.additional-images {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.additional-image-item {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.additional-image-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.additional-image-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.product-detail-content {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.product-title-section {
    text-align: center;
    margin-bottom: 30px;
}

.product-title-section h2 {
    font-size: 36px;
    font-weight: bold;
    color: var(--primary-red);
    margin-bottom: 15px;
}

.product-badge {
    display: inline-block;
    padding: 8px 20px;
    background-color: var(--dark-red);
    color: var(--white);
    border-radius: 50px;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 20px;
}

.detail-tabs {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
    justify-content: center;
    padding: 10px;
}

.tab-btn {
    padding: 16px 35px;
    font-size: 18px;
    font-weight: 700;
    border: 3px solid var(--light-gray);
    background-color: var(--white);
    color: var(--black);
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-fast);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.tab-btn.active {
    background-color: var(--primary-red);
    color: var(--white);
    border-color: var(--primary-red);
    box-shadow: 0 4px 12px rgba(200, 16, 46, 0.3);
    transform: translateY(-2px);
}

.tab-btn:hover {
    background-color: var(--light-gray);
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

.tab-content h3 {
    font-size: 24px;
    font-weight: bold;
    color: var(--black);
    margin-bottom: 20px;
}

.tab-content > p {
    font-size: 16px;
    color: var(--black);
    line-height: 1.8;
    margin-bottom: 30px;
}

.overview-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 30px;
}

.feature-item {
    background-color: var(--white);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-fast);
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.feature-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 15px;
}

.feature-icon img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.feature-item h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-red);
    margin-bottom: 10px;
}

.feature-item > p {
    font-size: 14px;
    color: var(--black);
    line-height: 1.6;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.specs-table thead {
    background-color: var(--primary-red);
}

.specs-table th {
    padding: 15px 20px;
    text-align: left;
    font-size: 16px;
    font-weight: 600;
    color: var(--white);
}

.specs-table tbody tr:nth-child(even) {
    background-color: var(--light-gray);
}

.specs-table td {
    padding: 15px 20px;
    border-bottom: 1px solid var(--light-gray);
    font-size: 15px;
    color: var(--black);
}

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

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.faq-item {
    background-color: var(--white);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-fast);
}

.faq-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.faq-question {
    margin-bottom: 15px;
}

.faq-question h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-red);
    margin-bottom: 10px;
}

.faq-answer {
    font-size: 15px;
    color: var(--black);
    line-height: 1.8;
}

.product-actions {
    display: flex;
    gap: 15px;
    margin-top: 40px;
    justify-content: center;
}

.centered-actions-section {
    padding: 30px 0 80px;
    background-color: var(--white);
    margin-top: -20px;
}

.centered-actions-section .product-actions {
    margin-top: 0;
}

.product-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.product-list-item {
    background-color: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.product-list-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

.product-list-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.product-list-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-fast);
}

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

.product-list-info {
    padding: 25px;
}

.product-list-info h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--primary-red);
    margin-bottom: 10px;
    text-align: center;
}

.product-list-info > p {
    font-size: 14px;
    color: var(--black);
    line-height: 1.6;
    margin-bottom: 15px;
    text-align: center;
}

.product-list-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.product-list-spec {
    display: inline-block;
    padding: 6px 12px;
    background-color: var(--light-gray);
    color: var(--black);
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.product-list-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
}

.product-list-actions .btn {
    flex: 1;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 相关产品推荐样式 */
.related-products-section {
    padding: 80px 0;
    background-color: var(--light-gray);
}

.related-products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.related-product-card {
    background-color: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.related-product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.related-product-card .product-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.related-product-card .product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

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

.related-product-card .product-info {
    padding: 25px;
    flex: 1;
    display: flex;
    flex-direction: column;
    text-align: center;
    width: 100%;
    box-sizing: border-box;
}

.related-product-card .product-info h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary-red);
    margin-bottom: 12px;
    line-height: 1.4;
    text-align: center;
}

.related-product-card .product-info p {
    font-size: 14px;
    color: var(--black);
    line-height: 1.6;
    margin-bottom: 20px;
    flex: 1;
}

.btn-outline-small {
    display: inline-block;
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 600;
    border: 2px solid var(--primary-red);
    background-color: transparent;
    color: var(--primary-red);
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition-fast);
    align-self: center;
}

.btn-outline-small:hover {
    background-color: var(--primary-red);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(200, 16, 46, 0.25);
}

.products-section {
    padding-top: 40px;
}