/* 全局重置 + 首页/About Us 基础样式（保留所有原有样式） */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    color: #333;
    font-size: 16px;
    line-height: 1.5;
}

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

/* 首页/About Us 原有样式（顶部信息栏、导航、移动端导航、页脚等）全部保留，以下仅新增 Contact Us 专属样式 */

/* Contact Banner 区域 */
.contact-banner {
    position: relative;
    color: #fff;
}

.contact-banner .container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 0 5%;
    z-index: 2;
}

.contact-banner .breadcrumb {
    font-size: 14px;
    margin-bottom: 15px;
}

.contact-banner .breadcrumb a {
    color: #fff;
    text-decoration: none;
}

.contact-banner .breadcrumb span {
    color: #fff;
    font-weight: 600;
}

.contact-banner h1 {
    font-size: 48px;
    text-transform: uppercase;
    font-weight: bold;
    margin-bottom: 20px;
    line-height: 1.2;
}

.contact-banner p {
    font-size: 16px;
    max-width: 600px;
    line-height: 1.6;
}

.contact-banner .banner-img img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    filter: brightness(0.6);
}

/* 联系方式快捷栏 */
.contact-info-bar {
    background-color: #fff;
    padding: 40px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.contact-info-bar .container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.info-item i {
    font-size: 28px;
    color: #0066cc;
    margin-top: 5px;
}

.info-content h4 {
    font-size: 16px;
    text-transform: uppercase;
    color: #0f2942;
    margin-bottom: 10px;
    font-weight: bold;
}

.info-content p {
    font-size: 14px;
    color: #666;
    margin-bottom: 5px;
}

.info-content small {
    font-size: 12px;
    color: #999;
}

.social-icons {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}

.social-icons a {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid #0066cc;
    color: #0066cc;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-icons a:hover {
    background-color: #0066cc;
    color: #fff;
}

/* 表单+地图主区域 */
.contact-main {
    padding: 80px 0;
    background-color: #f9f9f9;
}

.contact-main .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-form-col h2,
.contact-map-col h2 {
    font-size: 24px;
    text-transform: uppercase;
    color: #0f2942;
    margin-bottom: 15px;
    font-weight: bold;
}

.contact-form-col p {
    font-size: 14px;
    color: #666;
    margin-bottom: 30px;
    line-height: 1.6;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

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

.form-group label {
    font-size: 14px;
    color: #333;
    font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 0;
    font-size: 14px;
    color: #333;
    outline: none;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: #0066cc;
}

.form-group textarea {
    resize: vertical;
}

.submit-btn {
    background-color: #0066cc;
    color: #fff;
    border: none;
    padding: 12px 25px;
    text-transform: uppercase;
    font-weight: bold;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    width: fit-content;
}

.submit-btn:hover {
    background-color: #004c99;
}

/* 地图区域 */
.map-container {
    position: relative;
    width: 100%;
}

.map-container img {
    width: 100%;
    height: auto;
    border: 1px solid #ddd;
}

.map-label {
    position: absolute;
    top: 20px;
    left: 20px;
    background-color: #fff;
    padding: 15px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    font-size: 14px;
    color: #333;
}

.map-label p {
    margin-bottom: 5px;
}

.view-map-link {
    font-size: 12px;
    color: #0066cc;
    text-decoration: none;
}

.view-map-link:hover {
    text-decoration: underline;
}

/* FAQ 区域 */
.faq-section {
    padding: 80px 0;
    background-color: #fff;
}

.faq-section h2 {
    font-size: 24px;
    text-transform: uppercase;
    color: #0f2942;
    margin-bottom: 40px;
    text-align: center;
    font-weight: bold;
}

.faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid #eee;
    margin-bottom: 10px;
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    text-align: left;
    padding: 15px 0;
    font-size: 16px;
    color: #0f2942;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.faq-question i {
    font-size: 14px;
    color: #0066cc;
    transition: transform 0.3s ease;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    padding: 0 0 0 0;
}

.faq-answer p {
    font-size: 14px;
    color: #666;
    padding-bottom: 15px;
    line-height: 1.6;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-item.active .faq-question i {
    transform: rotate(45deg);
}

/* 底部CTA区 */
.contact-cta {
    padding: 40px 0;
    background-color: #f0f5fc;
    margin: 40px 0 0;
}

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

.cta-left {
    display: flex;
    align-items: center;
    gap: 20px;
}

.cta-left i {
    font-size: 36px;
    color: #0066cc;
}

.cta-text h3 {
    font-size: 18px;
    color: #0f2942;
    font-weight: bold;
    margin-bottom: 5px;
}

.cta-text p {
    font-size: 14px;
    color: #666;
}

.cta-right .cta-quote-btn {
    background-color: #0066cc;
    color: #fff;
    text-decoration: none;
    padding: 12px 25px;
    text-transform: uppercase;
    font-weight: bold;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: background-color 0.3s ease;
}

.cta-right .cta-quote-btn:hover {
    background-color: #004c99;
}

/* 响应式适配 */
@media (max-width: 1024px) {
    .contact-banner h1 {
        font-size: 36px;
    }
    .contact-info-bar .container {
        grid-template-columns: repeat(2, 1fr);
    }
    .contact-main .container {
        grid-template-columns: 1fr;
    }
    .contact-map-col {
        margin-top: 40px;
    }
    .faq-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .contact-banner h1 {
        font-size: 28px;
    }
    .contact-banner .banner-img img {
        height: 300px;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .contact-cta .container {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    .cta-left {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .contact-banner h1 {
        font-size: 22px;
    }
    .contact-banner .banner-img img {
        height: 250px;
    }
    .contact-info-bar .container {
        grid-template-columns: 1fr;
    }
    .faq-section h2 {
        font-size: 20px;
    }
    .cta-left i {
        font-size: 28px;
    }
    .cta-text h3 {
        font-size: 16px;
    }
}

/* 首页/About Us 原有响应式样式（768px/480px 适配）全部保留 */