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

:root {
    --primary-color: #27ae60;
    --primary-dark: #1e8449;
    --secondary-color: #f39c12;
    --dark-color: #2c3e50;
    --light-color: #ecf0f1;
    --text-color: #333;
    --light-text: #666;
    --white: #ffffff;
    --gradient: linear-gradient(135deg, #27ae60 0%, #2ecc71 100%);
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 20px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
    opacity: 0;
    transition: opacity 0.3s ease;
}

body.loaded {
    opacity: 1;
}

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

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

/* ==================== 导航栏 ==================== */
.navbar {
    background: var(--white);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
    height: 70px;
}

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

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

/* 导航栏品牌部分 */
.nav-brand {
    display: flex;
    align-items: center;
    gap: 15px;
    flex: 1;
    min-width: 0;
}

.brand-logo {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.brand-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.brand-text h1 {
    color: var(--primary-color);
    font-size: 16px;
    font-weight: 700;
    line-height: 1.2;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.brand-text .text-secondary {
    color: var(--light-text);
    font-size: 10px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 导航菜单 */
.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
    margin: 0;
    padding: 0;
    flex-shrink: 0;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 5px 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

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

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    gap: 5px;
    width: 30px;
    height: 30px;
    flex-shrink: 0;
    z-index: 1001;
    padding: 5px;
    margin-left: 10px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-color);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* ==================== 首页 Banner ==================== */
.hero {
    height: 100vh;
    min-height: 600px;
    background: url('../images/banner.png') center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    position: relative;
    margin-top: 70px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(39, 174, 96, 0.85) 0%, rgba(46, 204, 113, 0.75) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 20px;
    animation: fadeInUp 1s ease;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    line-height: 1.2;
    color:#FCFC7F;
}

.hero-subtitle {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-tagline {
    font-size: 20px;
    margin-bottom: 40px;
    font-style: italic;
    opacity: 0.9;
    color:#C4FE9D;
}

.btn {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    margin: 0 10px;
    border: 2px solid var(--white);
}

.btn-select {
    background: #C72C41;
    color:  var(--white);
}

.btn-select:hover {
    background: var(--white);
    color: #C72C41;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

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

.btn-primary:hover {
    background: transparent;
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

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

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

/* ==================== 通用 Section 样式 ==================== */
.section {
    padding: 80px 0;
}

.section:nth-child(even) {
    background: var(--light-color);
}

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

.section-header h2 {
    font-size: 36px;
    color: var(--primary-color);
    margin-bottom: 10px;
    font-weight: 700;
}

.section-subtitle {
    color: var(--light-text);
    font-size: 18px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* ==================== 关于我们 ==================== */
.about-content {
    text-align: center;
    margin-bottom: 60px;
}

.about-text {
    max-width: 900px;
    margin: 0 auto 50px;
}

.about-text p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--light-text);
    text-align: justify;
    padding: 0 20px;
}

.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.culture-item {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.culture-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.culture-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.culture-item h3 {
    color: var(--primary-color);
    font-size: 24px;
    margin-bottom: 15px;
}

.culture-item p {
    color: var(--light-text);
    font-size: 14px;
    line-height: 1.6;
}

/* ==================== 核心优势 ==================== */
.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.advantage-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.advantage-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.advantage-number {
    position: absolute;
    top: -10px;
    right: -10px;
    width: 60px;
    height: 60px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 24px;
    font-weight: 700;
    opacity: 0.1;
    transition: opacity 0.3s ease;
}

.advantage-card:hover .advantage-number {
    opacity: 0.2;
}

.advantage-card h3 {
    color: var(--primary-color);
    font-size: 20px;
    margin-bottom: 15px;
}

.advantage-card p {
    color: var(--light-text);
    font-size: 14px;
    line-height: 1.6;
}

/* ==================== 产品中心 ==================== */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 30px;
}

.product-card {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.product-image {
    height: 200px;
    background: var(--light-color);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.product-info {
    padding: 25px;
}

.product-info h3 {
    color: var(--dark-color);
    font-size: 20px;
    margin-bottom: 10px;
}

.product-desc {
    color: var(--light-text);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 15px;
}

.product-tag {
    display: inline-block;
    padding: 5px 15px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

/* ==================== 核心科技 ==================== */
.tech-intro {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 50px;
    font-size: 16px;
    line-height: 1.8;
    color: var(--light-text);
}

.technology-list {
    max-width: 800px;
    margin: 0 auto;
}

.tech-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 30px;
    background: var(--white);
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.tech-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-hover);
}

.tech-icon {
    font-size: 48px;
    flex-shrink: 0;
}

.tech-content h3 {
    color: var(--primary-color);
    font-size: 18px;
    margin-bottom: 10px;
}

.tech-content p {
    color: var(--light-text);
    font-size: 14px;
    line-height: 1.6;
}

/* ==================== 核心业务 ==================== */
.business-desc {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px;
    font-size: 16px;
    line-height: 1.8;
    color: var(--light-text);
}

.business-flow {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
    max-width: 800px;
    margin: 0 auto;
}

.flow-item {
    padding: 15px 30px;
    background: var(--gradient);
    color: var(--white);
    border-radius: 50px;
    font-weight: 600;
    box-shadow: var(--shadow);
}

.flow-arrow {
    font-size: 24px;
    color: var(--light-text);
}

/* ==================== 合作伙伴 ==================== */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.partner-item {
    padding: 30px 20px;
    background: var(--white);
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 15px;
}

.partner-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.partner-logo {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: 8px;
    overflow: hidden;
    background: var(--light-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.partner-logo img {
    width: 80%;
    height: 80%;
    object-fit: contain;
}

.partner-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--dark-color);
    line-height: 1.4;
}

.partner-tag {
    display: inline-block;
    padding: 3px 8px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 20px;
    font-size: 10px;
    font-weight: 200;
}

/* ==================== 联系我们 ==================== */
.contact-content {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 40px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 20px;
    background: var(--white);
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-hover);
}

.contact-icon {
    font-size: 36px;
    flex-shrink: 0;
}

.contact-text h4 {
    color: var(--primary-color);
    font-size: 16px;
    margin-bottom: 5px;
}

.contact-text p {
    color: var(--text-color);
    font-size: 14px;
    line-height: 1.4;
    margin: 0;
}

.contact-text a {
    color: var(--text-color);
    font-size: 14px;
    text-decoration: none;
    transition: var(--transition);
}

.contact-text a:hover {
    color: var(--primary-color);
}

.contact-social {
    text-align: center;
    padding: 30px;
    background: var(--gradient);
    border-radius: 10px;
    color: var(--white);
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 100%;
}

.contact-social p {
    font-size: 26px;
    margin-bottom: 25px;
}

.social-container {
    display: flex;
    gap: 24px;
    justify-content: center;
    align-items: flex-start;
    flex-wrap: wrap;
}

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

.social-link {
    padding: 12px 30px;
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    text-decoration: none;
    border-radius: 25px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
    display: block;
    margin-bottom: 10px;
    font-size: 16px;
}

.social-link:hover {
    background: var(--white);
    color: var(--primary-color);
    border-color: var(--white);
}

.social-item img {
    width: 150px;
    height: 150px;
    object-fit: contain;
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 6px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.1);
}

/* ==================== 页脚 ==================== */
.footer {
    background: var(--dark-color);
    color: var(--white);
    padding: 60px 0 30px;
}

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

.footer-brand {
    text-align: center;
}

.footer-logo {
    width: 100%;
    max-width: 180px;
    height: auto;
    margin-bottom: 20px;
}

.footer-brand h3 {
    font-size: 20px;
    margin-bottom: 10px;
    font-weight: 700;
}

.footer-brand p {
    font-size: 14px;
    opacity: 0.8;
    margin: 5px 0;
}

.footer-links,
.footer-products,
.footer-contact {
    text-align: left;
}

.footer-links h4,
.footer-products h4,
.footer-contact h4 {
    font-size: 18px;
    margin-bottom: 20px;
    font-weight: 600;
}

.footer-links ul,
.footer-products ul,
.footer-contact ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li,
.footer-products li,
.footer-contact li {
    margin-bottom: 12px;
}

.footer-links a,
.footer-products a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover,
.footer-products a:hover {
    color: var(--white);
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.contact-emoji {
    font-size: 16px;
    margin-top: 2px;
}

.footer-contact a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-contacthours {
    color: #FFFFFFB3;
    font-size: 16px;
  }

.footer-copyright {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-copyright p {
    font-size: 13px;
    opacity: 0.6;
    margin-bottom: 15px;
}

.footer-bottom-links {
    display: flex;
    gap: 30px;
    justify-content: center;
}

.footer-bottom-links a {
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    font-size: 12px;
    transition: var(--transition);
}

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

/* ==================== 返回顶部按钮 ==================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-hover);
    z-index: 999;
    transition: var(--transition);
    opacity: 0;
    transform: translateY(20px);
}

.back-to-top.show {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(46, 204, 113, 0.4);
}

.back-to-top:active {
    transform: translateY(-4px);
}

.back-to-top.clicked {
    animation: buttonClick 0.6s ease;
}

@keyframes buttonClick {
    0% { transform: scale(1); }
    50% { transform: scale(0.85); }
    100% { transform: scale(1); }
}

.arrow-icon {
    width: 24px;
    height: 24px;
    transition: var(--transition);
}

.back-to-top:hover .arrow-icon {
    transform: translateY(-4px);
}

.back-to-top.clicked .arrow-icon {
    animation: arrowRotate 0.8s ease;
}

@keyframes arrowRotate {
    0% { transform: translateY(0) rotate(0deg); }
    30% { transform: translateY(-10px) rotate(-10deg); }
    60% { transform: translateY(5px) rotate(10deg); }
    100% { transform: translateY(0) rotate(0deg); }
}

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

/* ==================== 响应式设计 ==================== */

/* 平板设备 */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 42px;
    }
    
    .hero-subtitle {
        font-size: 22px;
    }
    
    .section-header h2 {
        font-size: 32px;
    }
    
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 移动设备 */
@media (max-width: 768px) {
    .navbar {
        height: 60px;
    }
    
    .nav-brand {
        gap: 10px;
    }
    
    .brand-logo {
        width: 40px;
        height: 40px;
    }
    
    .brand-text h1 {
        font-size: 13px;
    }
    
    .brand-text .text-secondary {
        font-size: 8px;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 60px);
        background: var(--white);
        flex-direction: column;
        align-items: center;
        justify-content: flex-start;
        padding-top: 30px;
        gap: 0;
        overflow-y: auto;
        transition: left 0.3s ease;
    }
    
    .nav-menu.active {
        left: 0;
    }

    /* 遮罩层 */
    .nav-overlay {
        display: none;
        position: fixed;
        top: 60px;
        left: 0;
        width: 100%;
        height: calc(100vh - 60px);
        background: rgba(0, 0, 0, 0.5);
        z-index: 997;
        opacity: 0;
        transition: opacity 0.3s ease;
    }
    
    .nav-overlay.active {
        display: block;
        opacity: 1;
    }
    
    .nav-menu a {
        font-size: 18px;
        padding: 18px 30px;
        width: 100%;
        text-align: center;
        border-bottom: 1px solid #f0f0f0;
        line-height: 1.4;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .nav-menu a::after {
        display: none;
    }
    
    .hero {
        margin-top: 60px;
        min-height: 500px;
    }
    
    .hero-title {
        font-size: 32px;
        margin-bottom: 15px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-tagline {
        font-size: 16px;
        margin-bottom: 30px;
    }
    
    .btn {
        padding: 12px 30px;
        margin: 8px 5px;
        font-size: 14px;
    }
    
    .section {
        padding: 50px 0;
    }
    
    .section-header {
        margin-bottom: 40px;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .section-subtitle {
        font-size: 14px;
    }
    
    .culture-grid,
    .advantages-grid,
    .products-grid,
    .partners-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .tech-item {
        flex-direction: column;
        text-align: center;
        padding: 30px 20px;
        align-items: center;
    }
    
    .tech-icon {
        margin-bottom: 20px;
        font-size: 56px;
    }

    .tech-content h3 {
        margin-bottom: 12px;
        font-size: 18px;
    }
    
    .business-flow {
        flex-direction: column;
        gap: 10px;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .social-container {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .footer-brand,
    .footer-links,
    .footer-products,
    .footer-contact {
        text-align: center;
    }
    
    .footer-bottom-links {
        flex-direction: column;
        gap: 15px;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

/* 小屏移动设备 */
@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .brand-text h1 {
        font-size: 11px;
    }
    
    .brand-text .text-secondary {
        font-size: 7px;
    }
    
    .hero-title {
        font-size: 26px;
        padding: 0 15px;
    }
    
    .hero-subtitle {
        font-size: 16px;
        padding: 0 10px;
    }
    
    .btn {
        padding: 10px 25px;
        font-size: 13px;
        display: block;
        width: 80%;
        margin: 10px auto;
    }
    
    .section-header h2 {
        font-size: 24px;
    }
    
    .culture-item,
    .advantage-card,
    .product-card {
        padding: 30px 20px;
    }
    
    .partner-item {
        padding: 20px 15px;
    }
    
    .partner-logo {
        width: 50px;
        height: 50px;
    }
    
    .partner-name {
        font-size: 13px;
    }
    
    .contact-item {
        padding: 20px 15px;
    }
    
    .contact-social {
        padding: 30px 20px;
    }
    
    .social-item img {
        width: 100px;
        height: 100px;
    }
    
    .back-to-top {
        bottom: 15px;
        right: 15px;
        width: 40px;
        height: 40px;
    }
    
    .arrow-icon {
        width: 20px;
        height: 20px;
    }
}

/* 超宽屏设备 */
@media (min-width: 1440px) {
    .container {
        max-width: 1400px;
    }
    
    .hero-title {
        font-size: 56px;
    }
    
    .hero-subtitle {
        font-size: 28px;
    }
}

/* 横屏优化 */
@media (max-height: 600px) and (orientation: landscape) {
    .hero {
        min-height: 400px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .btn {
        padding: 10px 25px;
    }
}

/* 打印样式 */
@media print {
    .navbar,
    .back-to-top,
    .hero-overlay {
        display: none !important;
    }
    
    .hero {
        height: auto;
        padding: 40px 0;
        background: var(--light-color);
    }
    
    .section {
        page-break-inside: avoid;
    }
}