/* 全局重置 + 基础样式 */
* {
        text-decoration: none;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body {
    color: #333;
    line-height: 1.6;
    font-size: 16px;
}

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

/* 按钮通用样式 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border: none;
    border-radius: 0;
    font-weight: 600;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}


.btn1 {
    display: inline-block;
    padding: 12px 30px;
    border: none;
    border-radius: 0;
    font-weight: 600;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}



.btn2 {
    display: inline-block;
    padding: 12px 30px;
    border: none;
    border-radius: 0;
    font-weight: 600;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}




.primary-btn {
    background-color: #f9b100;
    color: #fff;
}

.primary-btn:hover {
    background-color: #e09f00;
    transform: translateY(-2px);
}

.secondary-btn {
    background-color: #f9b100;
    color: #fff;
    margin-top: 20px;
}

.outline-btn {
    background: transparent;
    border: 2px solid #333;
    color: #333;
}

.outline-btn:hover {
    background: #333;
    color: #fff;
}

.cta-btn {
    background-color: #1a242f;
    color: #fff;
    padding: 8px 20px;
    font-size: 14px;
}

.map-btn {
    background-color: #f9b100;
    color: #fff;
    padding: 8px 20px;
    font-size: 14px;
    margin-top: 15px;
    display: inline-block;
}

/* ========== 头部样式 ========== */
.header {
    background-color: #1a242f;
    color: #fff;
}

.top-bar {
    padding: 8px 0;
    border-bottom: 1px solid #2c3e50;
}

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

.top-bar-left {
    display: flex;
    gap: 20px;
}

.top-bar-left span {
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.lang-switch {
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
}

.main-nav {
    padding: 15px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    height: 40px;
}

.logo-text h1 {
    font-size: 18px;
    text-transform: uppercase;
    color: #fff;
}

.logo-text p {
    font-size: 12px;
    color: #ccc;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 25px;
    list-style: none;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    text-transform: uppercase;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #f9b100;
}

.nav-links .active a {
    color: #ffffff;
}

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #2c3e50;
    list-style: none;
    padding: 15px 0;
    min-width: 200px;
    display: none;
    z-index: 999;
}

.dropdown-menu li {
    padding: 5px 20px;
}

.dropdown:hover .dropdown-menu {
    display: block;
}

.quote-btn {
    background-color: #f9b100;
    padding: 10px 20px;
    border-radius: 0;
}

.quote-btn:hover {
    background-color: #e09f00;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: #fff;
}

/* ========== 英雄区 ========== */
.hero {
    background: linear-gradient(to right, #f8f9fa 60%, #e9ecef 40%);
    padding: 60px 0;
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background: url('../images/banner.png') no-repeat center center;
    background-size: cover;
    opacity: 0.8;
    z-index: 0;
}

.hero .container {
    display: flex;
    position: relative;
    z-index: 1;
}

.hero-content {
    flex: 1;
    padding-right: 40px;
}

.hero-content h1 {
    font-size: 48px;
    font-weight: 700;
    color: #1a242f;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 18px;
    color: #555;
    margin-bottom: 30px;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: #666;
}

.feature-item i {
    color: #f9b100;
    font-size: 18px;
}

.hero-stats {
    flex: 0 0 350px;
    background-color: #1a242f;
    color: #fff;
    padding: 30px;
}

.stat-item {
    margin-bottom: 25px;
    border-bottom: 1px solid #2c3e50;
    padding-bottom: 15px;
}

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

.stat-number {
    font-size: 36px;
    font-weight: 700;
    color: #f9b100;
    display: block;
}

.stat-text {
    font-size: 14px;
    text-transform: uppercase;
    color: #ccc;
}

/* ========== 产品区 ========== */
.products {
    padding: 80px 0;
    background-color: #fff;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.section-tag {
    text-transform: uppercase;
    color: #f9b100;
    font-weight: 600;
    font-size: 14px;
    display: block;
    margin-bottom: 5px;
}

.section-header h2 {
    font-size: 32px;
    color: #1a242f;
    font-weight: 700;
}

.view-all {
    color: #1a242f;
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 30px;
}

.product-card {
    background-color: #f8f9fa;
    padding: 20px;
    text-align: center;
    transition: transform 0.3s ease;
}

.product-card:hover {
    transform: translateY(-5px);
}

.product-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    margin-bottom: 15px;
}

.product-card h3 {
    font-size: 18px;
    color: #1a242f;
    margin-bottom: 10px;
    text-transform: uppercase;
}

.product-card p {
    font-size: 14px;
    color: #666;
    margin-bottom: 15px;
}

.card-link {
    color: #f9b100;
    font-size: 20px;
    text-decoration: none;
}

/* ========== 为什么选择我们 ========== */
.why-choose-us {
    padding: 80px 0;
    background-color: #1a242f;
    color: #fff;
}

.why-choose-us .section-header h2 {
    color: #fff;
}

.why-choose-us .section-header p {
    margin: 15px 0;
    color: #ccc;
    max-width: 800px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.feature-card {
    text-align: center;
    padding: 30px;
    background-color: #2c3e50;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-card i {
    font-size: 36px;
    color: #f9b100;
    margin-bottom: 15px;
}

.feature-card h3 {
    font-size: 18px;
    margin-bottom: 10px;
    text-transform: uppercase;
}

.feature-card p {
    font-size: 14px;
    color: #ccc;
}

/* ========== 应用领域 ========== */
.applications {
    padding: 80px 0;
    background-color: #fff;
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

.app-card {
    position: relative;
    height: 250px;
    overflow: hidden;
}

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

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

.app-card h3 {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 10px;
    background-color: #f9b100;
    color: #fff;
    font-size: 16px;
    text-transform: uppercase;
    text-align: center;
}



.app-card h3 a {
      position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 10px;
    background-color: #f9b100;
    color: #fff;
    font-size: 16px;
    text-transform: uppercase;
    text-align: center;

}


/* ========== 数据统计区 ========== */
.stats {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    text-align: center;
}

.stat-block {
    padding: 20px;
}

.stat-block i {
    font-size: 36px;
    color: #f9b100;
    margin-bottom: 15px;
}

.stat-num {
    font-size: 32px;
    font-weight: 700;
    color: #1a242f;
    display: block;
}

.stat-desc {
    font-size: 14px;
    color: #666;
    text-transform: uppercase;
}

.cta-block {
    background-color: #f9b100;
    color: #fff;
    padding: 30px 20px;
}

.cta-block h3 {
    font-size: 18px;
    margin-bottom: 10px;
}

.cta-block p {
    font-size: 14px;
    margin-bottom: 15px;
}






/* ========== 页脚 ========== */
.footer {
    background-color: #1a242f;
    color: #ccc;
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    color: #fff;
    font-size: 16px;
    text-transform: uppercase;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 2px;
    background-color: #f9b100;
}

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

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-col ul li a:hover {
    color: #f9b100;
}

.logo-col {
    max-width: 300px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

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

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    color: #fff;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: #2c3e50;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: background-color 0.3s ease;
}

.social-links a:hover {
    background-color: #f9b100;
}

.contact-info li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 15px;
}

.contact-info li i {
    color: #f9b100;
    margin-top: 3px;
}

.newsletter-form {
    display: flex;
    margin-top: 15px;
}

.newsletter-form input {
    flex: 1;
    padding: 10px;
    border: none;
    outline: none;
    font-size: 14px;
}

.newsletter-form button {
    background-color: #f9b100;
    color: #fff;
    border: none;
    padding: 0 15px;
    cursor: pointer;
}

.footer-bottom {
    padding-top: 20px;
    border-top: 1px solid #2c3e50;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
}

.footer-links a:hover {
    color: #f9b100;
}

/* ========== 响应式适配 ========== */
@media (max-width: 992px) {
    .hero .container {
        flex-direction: column;
    }

    .hero-content {
        padding-right: 0;
        margin-bottom: 40px;
    }

    .hero-stats {
        width: 100%;
        flex: none;
    }

    .hero::after {
        width: 100%;
        height: 50%;
        top: auto;
        bottom: 0;
    }

    .hero-content h1 {
        font-size: 36px;
    }
}

@media (max-width: 768px) {
    .top-bar-left {
        flex-direction: column;
        gap: 5px;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        height: 100vh;
        width: 250px;
        background-color: #1a242f;
        flex-direction: column;
        padding-top: 80px;
        transform: translateX(100%);
        transition: transform 0.3s ease;
        z-index: 9999;
    }

    .nav-links.show {
        transform: translateX(0);
    }

    .hamburger {
        display: flex;
        z-index: 9999;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-bottom {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .footer-links {
        flex-direction: column;
        gap: 5px;
        text-align: center;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 28px;
    }

    .products-grid, .features-grid, .apps-grid, .stats-grid {
        grid-template-columns: 1fr;
    }

    .hero-features {
        flex-direction: column;
        gap: 10px;
    }

    .section-header h2 {
        font-size: 24px;
    }
}