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

:root {
    --primary-color: #1a1a1a;
    --secondary-color: #333;
    --text-color: #333;
    --text-light: #666;
    --bg-light: #f8f8f8;
    --white: #ffffff;
    --accent-color: #d4a574;
    --border-color: #e0e0e0;
    --font-primary: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

body {
    font-family: var(--font-primary);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

@media (max-width: 768px) {
    .navbar {
        padding: 0.75rem 0;
    }
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    gap: 1rem;
}

.nav-brand {
    flex: 0 0 auto;
    min-width: 0;
    max-width: 100%;
}

.nav-brand a {
    font-size: 1rem;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
    white-space: nowrap;
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

@media (max-width: 1024px) {
    .nav-brand a {
        font-size: 0.9rem;
    }
}

@media (max-width: 768px) {
    .nav-brand {
        flex: 1;
        min-width: 0;
        max-width: calc(100% - 60px);
    }
    
    .nav-brand a {
        font-size: 0.8rem;
    }
}

/* 汉堡菜单按钮 */
.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    gap: 4px;
    flex: 0 0 auto;
    margin-left: 1rem;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: all 0.3s;
    border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
    flex: 0 0 auto;
    margin: 0;
    padding: 0;
}

@media (max-width: 1024px) {
    .nav-menu {
        gap: 1rem;
    }
}

.nav-item {
    position: relative;
    flex: 0 0 auto;
}

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s;
    padding: 0.5rem 0;
    white-space: nowrap;
    display: inline-block;
}

@media (max-width: 1024px) {
    .nav-link {
        font-size: 0.85rem;
    }
}

.nav-link:hover {
    color: var(--accent-color);
}

.cta-button {
    background: var(--primary-color);
    color: var(--white) !important;
    padding: 0.5rem 1.5rem !important;
    border-radius: 4px;
    white-space: nowrap;
}

@media (max-width: 1024px) {
    .cta-button {
        padding: 0.5rem 1rem !important;
        font-size: 0.85rem;
    }
}

.cta-button:hover {
    background: var(--secondary-color);
}

/* 下拉菜单 */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--white);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    list-style: none;
    min-width: 250px;
    padding: 1rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s;
}

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

.dropdown.active .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 下拉菜单切换按钮样式 */
.dropdown-toggle {
    position: relative;
}

.dropdown-toggle::after {
    content: '▼';
    font-size: 0.7rem;
    margin-left: 0.5rem;
    transition: transform 0.3s;
    display: inline-block;
}

@media (min-width: 769px) {
    .dropdown-toggle::after {
        display: none;
    }
}

.dropdown.active .dropdown-toggle::after {
    transform: rotate(180deg);
}

.dropdown-item {
    position: relative;
}

.dropdown-item > a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
}

.dropdown-item:hover > a {
    background: var(--bg-light);
    color: var(--accent-color);
}

.submenu {
    position: absolute;
    left: 100%;
    top: 0;
    background: var(--white);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    list-style: none;
    min-width: 300px;
    padding: 1rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-10px);
    transition: all 0.3s;
}

.dropdown-item:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

.dropdown-item.active .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(0);
}

/* 子菜单切换按钮样式 */
.dropdown-toggle-sub {
    position: relative;
}

.dropdown-toggle-sub::after {
    content: '▶';
    font-size: 0.7rem;
    margin-left: 0.5rem;
    transition: transform 0.3s;
    display: inline-block;
}

@media (min-width: 769px) {
    .dropdown-toggle-sub::after {
        display: none;
    }
}

.dropdown-item.active .dropdown-toggle-sub::after {
    transform: rotate(90deg);
}

.submenu li a {
    display: block;
    padding: 0.5rem 1.5rem;
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.9rem;
}

.submenu li a:hover {
    background: var(--bg-light);
    color: var(--accent-color);
}

/* 首页横幅 */
.hero {
    background: linear-gradient(135deg, #f8f8f8 0%, #e8e8e8 100%);
    padding: 6rem 0;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 2rem;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-color);
    max-width: 800px;
    margin: 0 auto 1rem;
    line-height: 1.8;
}

.hero-description-en {
    font-size: 1rem;
    color: var(--text-light);
    max-width: 800px;
    margin: 0 auto 2rem;
    font-style: italic;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.3s;
    font-size: 1rem;
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

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

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

.btn-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
}

.btn-link:hover {
    text-decoration: underline;
}

/* 公司简介 */
.company-profile {
    padding: 5rem 0;
    background: var(--white);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.profile-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.profile-item {
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 8px;
}

.profile-item strong {
    color: var(--primary-color);
}

.profile-content {
    max-width: 900px;
    margin: 0 auto;
}

.profile-content p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: var(--text-color);
}

/* 公司简介主图片 */
.profile-main-image {
    max-width: 700px;
    margin: 0 auto 3rem;
    text-align: center;
}

.profile-main-img {
    width: 100%;
    max-width: 100%;
    max-height: 500px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
    object-fit: cover;
    display: block;
    margin: 0 auto;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.profile-main-img:hover {
    transform: scale(1.01);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.15);
}

/* 轮播样式 */
.carousel-container {
    position: relative;
    max-width: 1000px;
    margin: 3rem auto;
    overflow: hidden;
    border-radius: 16px;
    background: var(--white);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.carousel-wrapper {
    position: relative;
    width: 100%;
    height: auto;
    min-height: 450px;
    background: linear-gradient(to bottom, #fafafa 0%, #ffffff 100%);
}

.carousel-slide {
    display: none;
    width: 100%;
    opacity: 0;
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    animation: fadeIn 0.6s ease-in-out;
}

.carousel-slide.active {
    display: block;
    opacity: 1;
}

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

.carousel-content {
    padding: 3rem 2.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 450px;
}

.carousel-image-only {
    padding: 2.5rem;
}

.carousel-image-only .carousel-image {
    margin: 0 auto;
}

.carousel-content p {
    margin-bottom: 1.8rem;
    line-height: 1.9;
    color: var(--text-color);
    text-align: left;
    max-width: 680px;
    font-size: 1.05rem;
}

.carousel-content p:last-of-type {
    margin-bottom: 2.5rem;
}

.carousel-image {
    width: 100%;
    max-width: 650px;
    max-height: 380px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
    object-fit: contain;
    margin: 2rem auto 0;
    display: block;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.carousel-image:hover {
    transform: scale(1.01);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.15);
}

.carousel-image-only .carousel-image {
    max-width: 700px;
    max-height: 420px;
    margin: 0;
}

/* 导航按钮 */
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.9);
    color: var(--primary-color);
    border: 1px solid rgba(0, 0, 0, 0.1);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    font-size: 1.8rem;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.carousel-btn:hover {
    background: var(--white);
    transform: translateY(-50%) scale(1.08);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    color: var(--accent-color);
}

.carousel-btn:active {
    transform: translateY(-50%) scale(0.95);
}

.carousel-prev {
    left: 15px;
}

.carousel-next {
    right: 15px;
}

/* 指示器 */
.carousel-indicators {
    position: absolute;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
    background: rgba(255, 255, 255, 0.7);
    padding: 8px 16px;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.2);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
}

.indicator.active {
    background: var(--primary-color);
    width: 24px;
    border-radius: 5px;
    transform: scale(1);
}

.indicator:hover:not(.active) {
    background: rgba(0, 0, 0, 0.4);
    transform: scale(1.2);
}

@media (max-width: 768px) {
    .profile-main-image {
        margin-bottom: 2rem;
    }
    
    .profile-main-image {
        max-width: 600px;
    }
    
    .profile-main-img {
        max-height: 350px;
    }
    
    .carousel-container {
        margin: 2rem auto;
        border-radius: 12px;
    }
    
    .carousel-wrapper {
        min-height: 350px;
    }
    
    .carousel-content {
        padding: 2rem 1.5rem;
        min-height: 350px;
    }
    
    .carousel-content p {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .carousel-image {
        max-width: 100%;
        max-height: 280px;
        margin-top: 1rem;
    }
    
    .carousel-btn {
        width: 42px;
        height: 42px;
        font-size: 1.6rem;
    }
    
    .carousel-prev {
        left: 10px;
    }
    
    .carousel-next {
        right: 10px;
    }
    
    .carousel-indicators {
        bottom: 15px;
        padding: 6px 12px;
        gap: 10px;
    }
    
    .indicator {
        width: 8px;
        height: 8px;
    }
    
    .indicator.active {
        width: 20px;
    }
}

@media (max-width: 480px) {
    .profile-main-image {
        margin-bottom: 1.5rem;
    }
    
    .profile-main-image {
        max-width: 100%;
    }
    
    .profile-main-img {
        max-height: 300px;
    }
    
    .carousel-container {
        margin: 1.5rem auto;
        border-radius: 10px;
    }
    
    .carousel-wrapper {
        min-height: 300px;
    }
    
    .carousel-content {
        padding: 1.5rem 1rem;
        min-height: 300px;
    }
    
    .carousel-content p {
        font-size: 0.95rem;
        line-height: 1.7;
        margin-bottom: 1.2rem;
    }
    
    .carousel-image {
        max-height: 220px;
        border-radius: 8px;
    }
    
    .carousel-btn {
        width: 38px;
        height: 38px;
        font-size: 1.4rem;
    }
    
    .carousel-prev {
        left: 8px;
    }
    
    .carousel-next {
        right: 8px;
    }
    
    .carousel-indicators {
        bottom: 12px;
        padding: 5px 10px;
        gap: 8px;
    }
    
    .indicator {
        width: 7px;
        height: 7px;
    }
    
    .indicator.active {
        width: 18px;
    }
}

/* 核心价值 */
.core-values {
    padding: 4rem 0;
    background: var(--bg-light);
    text-align: center;
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-color);
    max-width: 800px;
    margin: 0 auto 1rem;
}

.section-description-en {
    font-size: 1rem;
    color: var(--text-light);
    max-width: 800px;
    margin: 0 auto;
    font-style: italic;
}

/* 特色服务 */
.features {
    padding: 5rem 0;
    background: var(--white);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
}

.feature-card {
    text-align: center;
}

.feature-image {
    margin-bottom: 2rem;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
}

.placeholder-image {
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, #e0e0e0 0%, #f0f0f0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 1.2rem;
    border-radius: 8px;
}

.feature-single-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-radius: 8px;
    display: block;
}

/* 特色服务轮播 */
.feature-carousel {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
    border-radius: 8px;
}

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

.feature-carousel-slide {
    display: none;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}

.feature-carousel-slide.active {
    display: block;
    opacity: 1;
}

.feature-carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.feature-carousel-indicators {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
    background: rgba(0, 0, 0, 0.3);
    padding: 6px 12px;
    border-radius: 20px;
    backdrop-filter: blur(5px);
}

.feature-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.feature-indicator.active {
    background: var(--white);
    width: 20px;
    border-radius: 5px;
}

.feature-indicator:hover:not(.active) {
    background: rgba(255, 255, 255, 0.8);
    transform: scale(1.2);
}

.feature-title {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.feature-description {
    color: var(--text-color);
    line-height: 1.8;
    margin-bottom: 1rem;
}

/* 产品详情 */
.product-detail {
    padding: 5rem 0;
    background: var(--bg-light);
}

.product-description {
    font-size: 1.1rem;
    color: var(--text-color);
    max-width: 900px;
    margin: 0 auto 1rem;
    line-height: 1.8;
}

.product-description-en {
    font-size: 1rem;
    color: var(--text-light);
    max-width: 900px;
    margin: 0 auto 3rem;
    font-style: italic;
}

.product-sections {
    margin-top: 4rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.product-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
}

.product-section:nth-child(even) {
    direction: rtl;
}

.product-section:nth-child(even) > * {
    direction: ltr;
}

.product-section-image {
    border-radius: 8px;
    overflow: hidden;
}

.product-section-img {
    width: 100%;
    height: 100%;
    min-height: 300px;
    object-fit: cover;
    border-radius: 8px;
    display: block;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-section-img:hover {
    transform: scale(1.02);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* 燕麦介绍部分 - 上下布局 */
.oat-intro-section {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    margin-bottom: 3rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.oat-intro-content {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    width: 85%;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.oat-intro-content .product-description,
.oat-intro-content .product-description-en {
    margin-bottom: 0;
    max-width: 100%;
    width: 100%;
    text-align: left;
}

.oat-intro-image {
    width: 100%;
    text-align: center;
}

.oat-main-image {
    width: 100%;
    max-width: 100%;
    max-height: 400px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
    object-fit: cover;
    display: block;
    margin: 0 auto;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.oat-main-image:hover {
    transform: scale(1.02);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.15);
}

.product-section-content h3 {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.product-section-content h4 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.product-section-content p {
    color: var(--text-color);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

/* 品牌理念 */
.brand-philosophy {
    padding: 5rem 0;
    background: var(--white);
    text-align: center;
}

.section-subtitle {
    font-size: 1.5rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    font-style: italic;
}

.philosophy-images {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
    align-items: stretch;
}

.philosophy-image {
    width: 100%;
    height: 100%;
    min-height: 400px;
    max-height: 400px;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: block;
}

.philosophy-image:hover {
    transform: scale(1.02);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.15);
}

/* 橄榄油部分 */
.olive-oil-section {
    padding: 5rem 0;
    background: var(--bg-light);
}

.olive-oil-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.olive-feature {
    padding: 0;
    background: var(--white);
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

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

.process-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

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

.olive-feature h4 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    padding: 1.5rem 2rem 0;
}

.feature-subtitle {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 1rem;
    font-style: italic;
    padding: 0 2rem;
}

.olive-feature p {
    padding: 0 2rem 2rem;
    color: var(--text-color);
    line-height: 1.8;
}

/* 红酒部分 */
.wine-section {
    padding: 5rem 0;
    background: var(--white);
}

.wine-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.wine-card {
    padding: 0;
    background: var(--white);
    border-radius: 8px;
    border-left: 4px solid var(--accent-color);
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
}

.wine-image {
    width: 100%;
    min-height: 250px;
    max-height: 300px;
    overflow: hidden;
    background: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
}

.wine-img {
    width: 100%;
    height: auto;
    max-height: 300px;
    object-fit: contain;
    display: block;
    transition: transform 0.3s ease;
}

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

.wine-name {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    padding: 1.5rem 2rem 0;
}

.wine-detail {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-bottom: 1rem;
    font-style: italic;
    padding: 0 2rem;
}

.wine-description {
    color: var(--text-color);
    line-height: 1.8;
    padding: 0 2rem 2rem;
}

/* 服务部分 */
.services-section {
    padding: 4rem 0;
    background: var(--bg-light);
    text-align: center;
}

/* FAQ 部分 */
.faq-section {
    padding: 5rem 0;
    background: var(--white);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.faq-item {
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 8px;
}

.faq-question {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.faq-answer {
    color: var(--text-color);
    line-height: 1.8;
}

.faq-cta {
    text-align: center;
    margin-top: 3rem;
}

/* 联系表单 */
.contact-section {
    padding: 5rem 0;
    background: var(--bg-light);
}

.contact-email {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.contact-email a {
    color: var(--accent-color);
    text-decoration: none;
}

.contact-email a:hover {
    text-decoration: underline;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    padding: 3rem;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.form-group textarea {
    resize: vertical;
}

.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 4px;
    text-align: center;
    display: none;
}

.form-message.success {
    background: #d4edda;
    color: #155724;
    display: block;
}

.form-message.error {
    background: #f8d7da;
    color: #721c24;
    display: block;
}

/* 页脚 */
.footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
}

.footer-column h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

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

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

.footer-column ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-newsletter {
    text-align: center;
    padding: 2rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 2rem;
}

.footer-newsletter h4 {
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.footer-newsletter p {
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

.newsletter-form {
    display: flex;
    gap: 1rem;
    max-width: 500px;
    margin: 0 auto 1rem;
    justify-content: center;
}

.newsletter-form input {
    flex: 1;
    padding: 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    font-size: 1rem;
}

.newsletter-form input::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--white);
    background: rgba(255, 255, 255, 0.15);
}

.privacy-link {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
}

.privacy-link a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
}

.privacy-link a:hover {
    text-decoration: underline;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
}

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

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

.social-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s;
}

.social-links a:hover {
    color: var(--white);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
        z-index: 1001;
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        gap: 0;
        align-items: stretch;
        padding: 0;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 999;
    }
    
    .nav-menu.active {
        max-height: calc(100vh - 60px);
        overflow-y: auto;
        padding: 1rem 0;
    }
    
    .nav-item {
        width: 100%;
        border-bottom: 1px solid var(--border-color);
        position: relative;
    }
    
    .nav-item:last-child {
        border-bottom: none;
    }
    
    .nav-link {
        display: block;
        padding: 1rem 1.5rem;
        width: 100%;
        position: relative;
        z-index: 1;
    }
    
    .dropdown-menu {
        position: static;
        opacity: 0;
        visibility: hidden;
        transform: none;
        box-shadow: none;
        padding: 0;
        margin-top: 0;
        max-height: 0;
        overflow: hidden;
        background: var(--bg-light);
        transition: max-height 0.3s ease-out, opacity 0.3s ease-out, visibility 0.3s ease-out;
    }
    
    .dropdown.active .dropdown-menu {
        opacity: 1;
        visibility: visible;
        max-height: 1000px;
        padding: 0.5rem 0;
    }
    
    .dropdown-item {
        width: 100%;
    }
    
    .dropdown-item {
        border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    }
    
    .dropdown-item:last-child {
        border-bottom: none;
    }
    
    .dropdown-item > a {
        padding: 0.75rem 1.5rem 0.75rem 2.5rem;
        display: block;
    }
    
    .submenu {
        position: static;
        opacity: 0;
        visibility: hidden;
        transform: none;
        box-shadow: none;
        padding: 0;
        margin-top: 0;
        max-height: 0;
        overflow: hidden;
        background: rgba(0, 0, 0, 0.05);
        transition: max-height 0.3s ease-out, opacity 0.3s ease-out, visibility 0.3s ease-out;
    }
    
    .dropdown-item.active .submenu {
        opacity: 1;
        visibility: visible;
        max-height: 1000px;
        padding: 0.5rem 0;
    }
    
    .submenu li {
        border-bottom: 1px solid rgba(0, 0, 0, 0.03);
    }
    
    .submenu li:last-child {
        border-bottom: none;
    }
    
    .submenu li a {
        padding: 0.5rem 1.5rem 0.5rem 3.5rem;
        display: block;
    }
    
    .cta-button {
        margin: 1rem 1.5rem;
        text-align: center;
        display: block;
        width: calc(100% - 3rem);
    }
    
    .nav-item:last-child {
        border-bottom: none;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-carousel {
        height: 250px;
    }
    
    .feature-single-image {
        height: 250px;
    }
    
    .feature-carousel-indicators {
        bottom: 10px;
        padding: 5px 10px;
        gap: 6px;
    }
    
    .feature-indicator {
        width: 6px;
        height: 6px;
    }
    
    .feature-indicator.active {
        width: 16px;
    }
    
    .product-section {
        grid-template-columns: 1fr;
    }
    
    .product-section:nth-child(even) {
        direction: ltr;
    }
    
    /* 移动端：出口能力部分，图片放在文字上面 */
    .product-section:nth-child(2) {
        display: flex;
        flex-direction: column;
    }
    
    .product-section:nth-child(2) .product-section-image {
        order: -1;
    }
    
    .oat-intro-section {
        gap: 1.5rem;
        margin-bottom: 2rem;
    }
    
    .oat-intro-content {
        width: 90%;
    }
    
    .oat-main-image {
        max-height: 300px;
    }
    
    .product-section-img {
        min-height: 250px;
    }
    
    .philosophy-images {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .philosophy-image {
        max-height: 300px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 3rem 0;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .contact-form {
        padding: 2rem 1.5rem;
    }
    
    .oat-intro-section {
        gap: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .oat-main-image {
        max-height: 250px;
    }
    
    .product-section-img {
        min-height: 200px;
    }
    
    .philosophy-image {
        min-height: 250px;
        max-height: 250px;
    }
}