.form-container {
    margin: 50px auto;
    width: 100%;
    max-width: 1200px;
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

/* 左侧：表单区域 */
.form-section {
    flex: 2;
    min-width: 300px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
    padding: 32px;
}

.form-title {
    font-size: 24px;
    font-weight: 700;
    color: #222;
    margin-bottom: 28px;
    text-align: center;
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 15px;
    color: #444;
}

.required::after {
    content: " *";
    color: #f55e3c;
}

input[type="email"],
textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 15px;
    transition: border-color 0.3s;
}

input[type="email"]:focus,
textarea:focus {
    border-color: #f55e3c;
    outline: none;
    box-shadow: 0 0 0 2px rgba(245, 94, 60, 0.2);
}

textarea {
    min-height: 120px;
    resize: vertical;
    line-height: 1.5;
}

.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 8px;
}

.checkbox-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.checkbox-item input {
    margin-top: 4px;
    width: 18px;
    height: 18px;
    accent-color: #f55e3c;
}

.checkbox-item label {
    font-size: 14px;
    color: #555;
    cursor: pointer;
}

.submit-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #f55e3c, #f98a3d);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 16px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(245, 94, 60, 0.3);
}

.submit-btn:active {
    transform: translateY(0);
}

/* 右侧：产品预览区 */
.preview-section {
    flex: 1;
    min-width: 300px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.06);
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.preview-header {
    font-size: 16px;
    font-weight: 600;
    color: #555;
    margin-bottom: 16px;
}

.phone-preview {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.phone-preview img {
    height: 200px;
    object-fit: contain;
}

.phone-img {
    width: 140px;
    height: 280px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
    position: relative;
}

.phone-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-info {
    text-align: left;
}

.product-title {
    font-size: 16px;
    font-weight: 6;
    color: #222;
    margin-bottom: 8px;
    text-align: left;
}

.product-subtitle {
    font-size: 14px;
    color: #666;
    margin-bottom: 20px;
}

.jumo-logo {
    width: 220px;
    height: auto;
    margin: 0 auto 24px;
}

.seller-info {
    padding: 20px;
    background: #f9f9f9;
    border-radius: 8px;
    text-align: left;
}

.seller-title {
    font-size: 14px;
    color: #666;
    margin-bottom: 8px;
}

.seller-name {
    font-weight: 600;
    font-size: 14px;
    color: #222;
    margin-bottom: 8px;
}

.seller-location {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 6px;
    font-size: 14px;
    color: #555;
}

.location-icon {
    width: 16px;
    height: 16px;
    fill: #f55e3c;
}

/* 响应式：堆叠布局 */
@media (max-width: 768px) {
    .form-container {
        flex-direction: column;
    }

    .phone-preview {
        flex-wrap: wrap;
        justify-content: space-around;
    }

    .phone-img {
        width: 120px;
        height: 240px;
    }
}

/* 无障碍聚焦样式 */
input:focus-visible,
textarea:focus-visible,
.submit-btn:focus-visible {
    outline: 2px solid #4d90fe;
    outline-offset: 2px;
}