/* ==========================================
   联系我们样式 - Contact Page Styles
   ========================================== */

/* 联系卡片 Contact Cards */
.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.contact-card {
    background-color: #fff;
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.contact-card:hover {
    border-color: #0066cc;
    transform: translateY(-8px);
    box-shadow: 0 10px 30px rgba(0, 102, 204, 0.15);
}

.contact-card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0066cc 0%, #003d82 100%);
    border-radius: 50%;
    font-size: 36px;
    color: #fff;
    transition: all 0.5s ease;
}

.contact-card:hover .contact-card-icon {
    background: linear-gradient(135deg, #ff9900 0%, #e68a00 100%);
    transform: rotateY(360deg);
}

.contact-card-title {
    font-size: 20px;
    font-weight: 600;
    color: #003d82;
    margin-bottom: 15px;
}

.contact-card-text {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 8px;
}

/* 联系表单区域 Contact Form */
.contact-form-wrapper {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 50px;
    align-items: start;
}

.contact-form-content {
    background-color: #fff;
    padding: 50px;
    border-radius: 12px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
}

.form-section-title {
    font-size: 32px;
    font-weight: 700;
    color: #003d82;
    margin-bottom: 15px;
}

.form-section-desc {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 35px;
}

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

.main-contact-form .form-group {
    margin-bottom: 20px;
}

.main-contact-form label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: #333;
    margin-bottom: 8px;
}

.main-contact-form input,
.main-contact-form select,
.main-contact-form textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.3s ease;
    font-family: inherit;
}

.main-contact-form input:focus,
.main-contact-form select:focus,
.main-contact-form textarea:focus {
    outline: none;
    border-color: #0066cc;
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.main-contact-form input.error,
.main-contact-form textarea.error {
    border-color: #dc3545;
}

.main-contact-form .error-message {
    display: block;
    font-size: 13px;
    color: #dc3545;
    margin-top: 6px;
    min-height: 18px;
}

.main-contact-form textarea {
    resize: vertical;
    min-height: 120px;
}

.main-contact-form button[type="submit"] {
    width: 100%;
    margin-top: 10px;
}

/* 联系表单图片 */
.contact-form-image {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.contact-form-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.contact-form-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 61, 130, 0.95) 0%, transparent 100%);
    padding: 50px 30px;
}

.overlay-content {
    text-align: center;
    color: #fff;
}

.overlay-content i {
    font-size: 60px;
    margin-bottom: 20px;
    color: #ff9900;
}

.overlay-content h3 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 10px;
}

.overlay-content p {
    font-size: 15px;
    opacity: 0.9;
}

/* 地图容器 Map */
.map-wrapper {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

/* 招标信息 Bidding Info */
.bidding-content {
    background: linear-gradient(135deg, #003d82 0%, #0066cc 100%);
    color: #fff;
    padding: 60px;
    border-radius: 15px;
    display: flex;
    gap: 40px;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.bidding-content::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
}

.bidding-icon {
    flex-shrink: 0;
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    font-size: 60px;
    position: relative;
    z-index: 1;
}

.bidding-text {
    flex: 1;
    position: relative;
    z-index: 1;
}

.bidding-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 15px;
}

.bidding-desc {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 30px;
    opacity: 0.95;
}

.bidding-contacts {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.bidding-contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    backdrop-filter: blur(5px);
}

.bidding-contact-item i {
    font-size: 28px;
    color: #ff9900;
    flex-shrink: 0;
}

.bidding-contact-item strong {
    display: block;
    font-size: 14px;
    margin-bottom: 5px;
}

.bidding-contact-item span {
    display: block;
    font-size: 15px;
    opacity: 0.9;
}

/* 分公司 Branch Offices */
.branch-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.branch-card {
    background-color: #fff;
    padding: 35px 30px;
    border-radius: 12px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.branch-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.branch-title {
    font-size: 22px;
    font-weight: 600;
    color: #003d82;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #e8f4ff;
}

.branch-info {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.branch-info-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    color: #666;
    line-height: 1.6;
}

.branch-info-item i {
    color: #0066cc;
    font-size: 16px;
    margin-top: 3px;
    flex-shrink: 0;
}

/* Footer社交媒体 */
.footer-social {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: #bbb;
    font-size: 18px;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background-color: #0066cc;
    color: #fff;
    transform: translateY(-3px);
}

/* 响应式设计 Responsive */
@media (max-width: 1200px) {
    .contact-form-wrapper {
        gap: 40px;
    }

    .bidding-contacts {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 992px) {
    .contact-form-wrapper {
        grid-template-columns: 1fr;
    }

    .contact-form-image {
        height: 400px;
    }

    .bidding-content {
        flex-direction: column;
        text-align: center;
        padding: 50px 40px;
    }

    .bidding-icon {
        margin: 0 auto;
    }

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

@media (max-width: 768px) {
    .contact-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .contact-form-content {
        padding: 35px 25px;
    }

    .form-section-title {
        font-size: 26px;
    }

    .main-contact-form .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .contact-form-image {
        height: 350px;
    }

    .bidding-content {
        padding: 40px 30px;
    }

    .bidding-title {
        font-size: 26px;
    }

    .bidding-contacts {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .branch-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .contact-cards {
        grid-template-columns: 1fr;
    }

    .contact-card {
        padding: 30px 20px;
    }

    .contact-card-icon {
        width: 70px;
        height: 70px;
        font-size: 32px;
    }

    .contact-form-content {
        padding: 25px 20px;
    }

    .form-section-title {
        font-size: 22px;
    }

    .bidding-icon {
        width: 100px;
        height: 100px;
        font-size: 50px;
    }

    .bidding-title {
        font-size: 22px;
    }

    .bidding-contact-item {
        padding: 15px;
    }
}