.page-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    padding: 120px 0 80px;
    text-align: center;
    color: var(--text-light);
}

.page-header h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 16px;
}

.page-header p {
    font-size: 20px;
    opacity: 0.9;
}

.inquiry-container {
    padding: 60px 0 100px;
    background: var(--bg-secondary);
}

.inquiry-tabs {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
    justify-content: center;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 32px;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.tab-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.tab-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: var(--text-light);
}

.tab-btn i {
    font-size: 20px;
}

.inquiry-content {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 40px;
    box-shadow: var(--shadow-sm);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.inquiry-form {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.form-section {
    padding: 32px;
    background: var(--bg-secondary);
    border-radius: 8px;
}

.form-section h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.form-section h3 i {
    color: var(--primary-color);
    font-size: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

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

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group label .required {
    color: #e74c3c;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 14px;
    color: var(--text-primary);
    background: var(--bg-primary);
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 58, 95, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-secondary);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%237f8c8d' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

.form-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.batch-inquiry {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.upload-section {
    padding: 32px;
    background: var(--bg-secondary);
    border-radius: 8px;
}

.upload-section h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.upload-section h3 i {
    color: var(--primary-color);
    font-size: 20px;
}

.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    padding: 60px 40px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--bg-primary);
}

.upload-area:hover,
.upload-area.dragover {
    border-color: var(--primary-color);
    background: rgba(30, 58, 95, 0.05);
}

.upload-area i {
    font-size: 64px;
    color: var(--primary-color);
    opacity: 0.3;
    margin-bottom: 16px;
}

.upload-area p {
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.upload-hint {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.file-info {
    margin-top: 24px;
}

.file-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.file-item i {
    font-size: 32px;
    color: #27ae60;
}

.file-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.file-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.file-size {
    font-size: 12px;
    color: var(--text-secondary);
}

.btn-remove {
    width: 32px;
    height: 32px;
    border: none;
    background: #e74c3c;
    color: var(--text-light);
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-remove:hover {
    background: #c0392b;
}

.template-download {
    margin-top: 16px;
    text-align: center;
}

.template-download p {
    font-size: 14px;
    color: var(--text-secondary);
}

.template-download a {
    color: var(--primary-color);
    font-weight: 500;
    transition: var(--transition);
}

.template-download a:hover {
    color: var(--accent-color);
}

.template-download a i {
    margin-right: 4px;
}

.inquiry-tips {
    padding: 100px 0;
    background: var(--bg-primary);
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.tip-card {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
}

.tip-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    background: var(--primary-color);
}

.tip-card:hover h3,
.tip-card:hover p {
    color: var(--text-light);
}

.tip-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--text-light);
    transition: var(--transition);
}

.tip-card:hover .tip-icon {
    background: var(--accent-color);
}

.tip-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    transition: var(--transition);
}

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

/* 自定义产品选择下拉组件 */
.custom-product-select {
    position: relative;
    width: 100%;
}

.select-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.select-trigger:hover {
    border-color: var(--primary-color);
}

.select-trigger.active {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
}

.select-trigger.disabled {
    background: var(--bg-secondary);
    cursor: not-allowed;
    opacity: 0.6;
}

.select-text {
    color: var(--text-primary);
    font-size: 14px;
}

.select-trigger i {
    color: var(--text-secondary);
    transition: var(--transition);
}

.select-trigger.active i {
    transform: rotate(180deg);
}

.select-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 4px;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    max-height: 300px;
    overflow-y: auto;
    z-index: 1000;
    display: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.select-dropdown.active {
    display: block;
}

.select-option {
    display: flex;
    align-items: center;
    padding: 10px 16px;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
}

.select-option:last-child {
    border-bottom: none;
}

.select-option:hover {
    background: var(--bg-secondary);
}

.select-option.selected {
    background: rgba(26, 86, 219, 0.1);
    color: var(--primary-color);
}

.select-option img {
    width: 40px;
    height: 40px;
    object-fit: cover;
    border-radius: 4px;
    margin-right: 12px;
    border: 1px solid var(--border-color);
}

.select-option .product-info {
    flex: 1;
}

.select-option .product-name {
    font-weight: 500;
    color: var(--text-primary);
}

.select-option .no-image {
    width: 40px;
    height: 40px;
    background: var(--bg-secondary);
    border-radius: 4px;
    margin-right: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 12px;
}

@media (max-width: 1024px) {
    .tips-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .inquiry-tabs {
        flex-direction: column;
    }

    .tab-btn {
        justify-content: center;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .form-actions {
        flex-direction: column;
    }

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

    .inquiry-content {
        padding: 24px;
    }

    .form-section,
    .upload-section {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    .page-header h1 {
        font-size: 36px;
    }

    .page-header p {
        font-size: 16px;
    }

    .upload-area {
        padding: 40px 20px;
    }

    .upload-area i {
        font-size: 48px;
    }
}