:root {
    --primary-color: #FF6900;
    --secondary-color: #333333;
    --accent-gold: #CDA485;
    --light-bg: #f8f9fa;
}

body {
    font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: var(--secondary-color);
    overflow-x: hidden;
    background-color: #fafafa;
    line-height: 1.6;
}

/* 页面Banner */
.contact-banner {
    background: linear-gradient(rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0.75)),
    url('../img/hero-slide-1.jpg') no-repeat center center;
    background-size: cover;
    height: 300px;
    display: flex;
    align-items: center;
    color: white;
    position: relative;
    margin-top: 20px;
    border-radius: 12px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.banner-content {
    text-align: center;
    padding: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.banner-title {
    font-size: 2.6rem;
    font-weight: 800;
    margin-bottom: 15px;
    text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.7);
    letter-spacing: 1px;
}

.banner-subtitle {
    font-size: 1.15rem;
    margin-bottom: 25px;
    font-weight: 300;
    opacity: 0.9;
}

/* 联系表单 */
.contact-section {
    padding: 70px 0 50px;
}

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

.section-title h2 {
    font-size: 2.3rem;
    font-weight: 800;
    color: var(--secondary-color);
    position: relative;
    display: inline-block;
    letter-spacing: 1px;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 90px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 3px;
}

.contact-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    height: 100%;
    padding: 30px;
    position: relative;
}

/* 紧凑的联系电话区域 */
.phone-section {
    background: rgba(255, 105, 0, 0.05);
    border-radius: 10px;
    padding: 15px 20px;
    margin-bottom: 25px;
    text-align: center;
    border: 1px solid rgba(255, 105, 0, 0.15);
}

.phone-section i {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-bottom: 10px;
    display: block;
}

.phone-section h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--secondary-color);
}

.phone-number {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 5px 0;
    display: block;
    letter-spacing: 0.5px;
}

.phone-text {
    font-size: 0.95rem;
    color: #666;
    margin-top: 8px;
}

.form-control, .form-select {
    height: 48px;
    border-radius: 10px;
    border: 1px solid #e0e0e0;
    padding: 12px 16px;
    margin-bottom: 18px;
    transition: all 0.3s;
    font-size: 1rem;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(255, 105, 0, 0.2);
}

textarea.form-control {
    height: 140px;
    resize: none;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    padding: 12px 30px;
    font-weight: 700;
    font-size: 1.05rem;
    border-radius: 10px;
    transition: all 0.3s;
    letter-spacing: 1px;
    margin-top: 5px;
}

.btn-primary:hover {
    background-color: #e05e00;
    border-color: #e05e00;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(255, 105, 0, 0.25);
}

/* 右侧图片区域（缩小高度） */
.image-section {
    height: 100%;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
    position: relative;
}

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

.image-section:hover img {
    transform: scale(1.03);
}

.image-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 25px 20px;
}

.image-overlay h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.image-overlay p {
    opacity: 0.9;
    font-size: 1rem;
    margin-bottom: 0;
}

/* 响应式调整 */
@media (max-width: 1200px) {
    .banner-title {
        font-size: 2.4rem;
    }
}

@media (max-width: 992px) {
    .banner-title {
        font-size: 2.2rem;
    }

    .contact-banner {
        height: 280px;
    }

    .image-section {
        margin-top: 35px;
        height: 350px;
    }
}

@media (max-width: 768px) {
    .banner-title {
        font-size: 1.9rem;
    }

    .banner-subtitle {
        font-size: 1rem;
    }

    .section-title h2 {
        font-size: 2rem;
    }

    .contact-banner {
        height: 240px;
    }

    .phone-section {
        padding: 12px 15px;
    }

    .phone-number {
        font-size: 1.3rem;
    }

    .image-section {
        height: 300px;
    }
}

@media (max-width: 576px) {
    .banner-title {
        font-size: 1.7rem;
    }

    .banner-subtitle {
        font-size: 0.95rem;
    }

    .section-title h2 {
        font-size: 1.7rem;
    }

    .contact-card {
        padding: 25px;
    }

    .contact-banner {
        height: 200px;
    }

    .image-section {
        height: 250px;
    }

    .brand-tagline {
        font-size: 1.5rem;
    }
}

/* 超大屏手机 (iPhone 14 Pro Max, iPhone 15 Pro Max) */
@media (max-width: 430px) {
    .banner-title {
        font-size: 1.6rem;
        line-height: 1.3;
    }

    .banner-subtitle {
        font-size: 0.9rem;
    }

    .section-title h2 {
        font-size: 1.6rem;
    }

    .contact-card {
        padding: 20px;
        margin-bottom: 15px;
    }

    .contact-banner {
        height: 180px;
    }

    .image-section {
        height: 230px;
    }

    .brand-tagline {
        font-size: 1.4rem;
    }

    .form-group input,
    .form-group textarea {
        padding: 12px;
        font-size: 0.9rem;
    }
}

/* 大屏手机 (iPhone 11 Pro Max, iPhone 12 Pro Max) */
@media (max-width: 414px) {
    .banner-title {
        font-size: 1.5rem;
    }

    .banner-subtitle {
        font-size: 0.85rem;
    }

    .section-title h2 {
        font-size: 1.5rem;
    }

    .contact-card h3 {
        font-size: 1.1rem;
    }

    .contact-card p {
        font-size: 0.85rem;
    }

    .image-section {
        height: 220px;
    }

    .brand-tagline {
        font-size: 1.3rem;
    }
}

/* 标准新iPhone (iPhone 12, iPhone 13, iPhone 14) */
@media (max-width: 390px) {
    .banner-title {
        font-size: 1.4rem;
    }

    .section-title h2 {
        font-size: 1.4rem;
    }

    .contact-card {
        padding: 18px;
        margin-bottom: 12px;
    }

    .contact-banner {
        height: 160px;
    }

    .image-section {
        height: 200px;
    }

    .brand-tagline {
        font-size: 1.2rem;
    }

    .form-group {
        margin-bottom: 15px;
    }
}

/* 小屏新iPhone (iPhone 12 mini, iPhone 13 mini) */
@media (max-width: 375px) {
    .banner-title {
        font-size: 1.3rem;
        padding: 0 10px;
    }

    .banner-subtitle {
        font-size: 0.8rem;
        padding: 0 10px;
    }

    .section-title h2 {
        font-size: 1.3rem;
    }

    .contact-card {
        padding: 15px;
    }

    .contact-card h3 {
        font-size: 1rem;
    }

    .image-section {
        height: 180px;
    }

    .brand-tagline {
        font-size: 1.1rem;
    }

    .form-group input,
    .form-group textarea {
        padding: 10px;
        font-size: 0.85rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}

/* 标准Android手机 */
@media (max-width: 360px) {
    .banner-title {
        font-size: 1.2rem;
    }

    .section-title h2 {
        font-size: 1.2rem;
    }

    .contact-card {
        padding: 12px;
        margin-bottom: 10px;
    }

    .contact-banner {
        height: 140px;
    }

    .image-section {
        height: 160px;
    }

    .brand-tagline {
        font-size: 1rem;
    }

    .form-group {
        margin-bottom: 12px;
    }
}

/* 小屏手机 */
@media (max-width: 320px) {
    .banner-title {
        font-size: 1.1rem;
        padding: 0 8px;
    }

    .banner-subtitle {
        font-size: 0.75rem;
        padding: 0 8px;
    }

    .section-title h2 {
        font-size: 1.1rem;
    }

    .contact-card {
        padding: 10px;
        margin-bottom: 8px;
    }

    .contact-card h3 {
        font-size: 0.9rem;
    }

    .contact-card p {
        font-size: 0.8rem;
    }

    .contact-banner {
        height: 120px;
    }

    .image-section {
        height: 140px;
    }

    .brand-tagline {
        font-size: 0.9rem;
    }

    .form-group input,
    .form-group textarea {
        padding: 8px;
        font-size: 0.8rem;
    }

    .btn {
        padding: 8px 16px;
        font-size: 0.85rem;
    }
}

/* 折叠屏手机折叠状态 */
@media (max-width: 280px) {
    .banner-title {
        font-size: 1rem;
        padding: 0 5px;
    }

    .banner-subtitle {
        font-size: 0.7rem;
        padding: 0 5px;
    }

    .section-title h2 {
        font-size: 1rem;
    }

    .contact-card {
        padding: 8px;
        margin-bottom: 6px;
    }

    .contact-card h3 {
        font-size: 0.85rem;
    }

    .contact-card p {
        font-size: 0.75rem;
    }

    .contact-banner {
        height: 100px;
    }

    .image-section {
        height: 120px;
    }

    .brand-tagline {
        font-size: 0.85rem;
    }

    .form-group {
        margin-bottom: 10px;
    }

    .form-group input,
    .form-group textarea {
        padding: 6px;
        font-size: 0.75rem;
    }

    .btn {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
}