/* 上传双列 */
.upload-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 24px;
}
@media (min-width:768px) {
    .upload-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* 卡片 */
.card {
    background: var(--color-bg-container);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    padding: 20px;
}
.card-title {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
}

/* 上传框 */
.upload-box {
    border: 2px dashed var(--color-border-normal);
    border-radius: 8px;
    padding: 30px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.upload-box:hover {
    border-color: var(--color-primary);
    background: var(--color-bg-secondary);
}
.upload-box p {
    margin: 10px 0 0;
    color: var(--color-text-tertiary);
    font-size: 14px;
}
.file-input {
    display: none;
}
.preview-img {
    max-height: 60px;
    margin: 10px auto 0;
    display: none;
    object-fit: contain;
}

/* 表单行 */
.form-row {
    margin-bottom: 0;
}
.form-row label {
    display: block;
    margin-bottom: 6px;
    color: var(--color-text-secondary);
    font-size: 14px;
}
.form-row input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-border-normal);
    border-radius: 6px;
    font-size: 14px;
    color: var(--color-text-primary);
    background: var(--color-bg-secondary);
}

/* 配置面板 */
.config-area {
    background: var(--color-bg-container);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    padding: 16px;
    margin-bottom: 24px;
}
.config-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: 12px;
}
.theme-switch {
    margin-bottom: 16px;
}
.theme-switch label {
    color: var(--color-text-secondary);
    margin-right: 8px;
    font-size: 14px;
}
.theme-radio-group label {
    margin-right: 12px;
    cursor: pointer;
    color: var(--color-text-tertiary);
}
.slider-wrap {
    border-top: 1px solid var(--color-border-light);
    padding-top: 16px;
}
.slider-wrap label {
    display: block;
    margin-bottom: 8px;
    color: var(--color-text-secondary);
    font-size: 14px;
}
#ali-hide-slider {
    width: 100%;
    height: 6px;
    background: var(--color-border-light);
    border-radius: 3px;
    appearance: none;
    accent-color: var(--color-primary);
}
.slider-value {
    font-size: 12px;
    color: var(--color-text-tertiary);
    margin-top: 6px;
}

/* 按钮 */
.btn-center {
    text-align: center;
    margin-bottom: 24px;
}
.btn-primary,
.btn-success {
    padding: 10px 24px;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.btn-primary {
    background: var(--color-primary);
    color: #fff;
}
.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
.btn-success {
    background: var(--color-success);
    color: #fff;
}

.btn-success:hover {
    opacity: 0.85;
}

/* 结果容器 */
.result-container {
    background: var(--color-bg-container);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    padding: 24px;
    display: none;
}
.qr-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

/* 合成二维码核心样式 */
.qr-merge-container {
    position: relative;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    width: 100%;
    max-width: 600px;
    aspect-ratio: 1/1;
    background: none;
    overflow: hidden;
}
.qr-merge-container img {
    width: 100%;
    aspect-ratio: 1/1;
}
.qr-merge-container img.alipay-qr {
    position: absolute;
    right: 8px;
    bottom: 8px;
    width: 50%;
    transform: rotate(180deg);
}

/* 主题 */
.qr-merge-container.theme_a {
    padding: 0;
    aspect-ratio: 529/573;
    background: url(../../images/theme_a.webp) no-repeat;
    background-size: contain;
}
.qr-merge-container.theme_a img {
    width: 24%;
    height: auto;
    object-fit: contain;
}
.qr-merge-container.theme_a img.alipay-qr {
    right: 50%;
    top: 50%;
    width: 12%;
    transform: translate(100%) rotate(180deg);
}

.qr-merge-container.theme_b {
    padding: 0;
    aspect-ratio: 1152/1909;
    background: url(../../images/theme_b.webp) no-repeat;
    background-size: contain;
}
.qr-merge-container.theme_b img {
    width: 62%;
    height: auto;
    object-fit: contain;
}
.qr-merge-container.theme_b img.alipay-qr {
    right: 50%;
    top: 50%;
    width: 31%;
    transform: translate(100%) rotate(180deg);
}

.qr-merge-container.theme_c {
    padding: 0;
    aspect-ratio: 621/881;
    background: url(../../images/theme_c.webp) no-repeat;
    background-size: contain;
}
.qr-merge-container.theme_c img {
    width: 55%;
    height: auto;
    object-fit: contain;
}
.qr-merge-container.theme_c img.alipay-qr {
    right: 50%;
    top: 50%;
    width: 27.5%;
    transform: translate(100%) rotate(180deg);
}

.qr-merge-container.theme_d {
    padding: 0;
    aspect-ratio: 1152/1909;
    background: url(../../images/theme_d.webp) no-repeat;
    background-size: contain;
}
.qr-merge-container.theme_d img {
    width: 62%;
    height: auto;
    object-fit: contain;
}
.qr-merge-container.theme_d img.alipay-qr {
    right: 50%;
    top: 50%;
    width: 31%;
    transform: translate(100%) rotate(180deg);
}

/* 提示 */
.tip {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-light);
    border-radius: 8px;
    padding: 16px;
    font-size: 14px;
    color: var(--color-text-secondary);
    line-height: 1.6;
}
.tip p {
    margin: 0 0 6px;
    display: flex;
    align-items: center;
}
.tip i {
    margin-right: 8px;
    color: var(--color-primary);
    width: 14px;
    text-align: center;
}
.tip a {
    color: var(--color-primary);
    text-decoration: none;
}