/* 三层 Flex 一屏固定布局 */
.image-tools-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
}

.image-tools-container .page-header-nav {
    flex-shrink: 0;
    position: relative;
}

.image-tools-scroll {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    min-height: 0;
    padding-bottom: calc(20px + env(safe-area-inset-bottom, 20px));
}

.image-tools-page {
    padding-bottom: 20px;
}

/* 工具选项卡 */
.tool-tabs {
    display: flex;
    gap: 8px;
    padding: 6px;
    margin-bottom: 16px;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
}

.tool-tab {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 14px 8px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.tool-tab:hover {
    background: var(--color-bg-tertiary);
}

.tool-tab.active {
    background: var(--color-primary);
    color: #000;
}

.tool-tab-icon {
    font-size: 24px;
    line-height: 1;
}

.tool-tab-name {
    font-size: 13px;
    font-weight: 600;
}

/* 上传区域 */
.upload-zone {
    background: var(--color-bg-secondary);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 16px;
    overflow: hidden;
}

.upload-zone:hover,
.upload-zone.dragover {
    border-color: var(--color-primary);
    background: rgba(255, 224, 51, 0.05);
}

.upload-zone.has-image {
    cursor: default;
    border-style: solid;
    padding: 10px;
}

.upload-placeholder {
    text-align: center;
    padding: 40px 20px;
}

.upload-icon {
    font-size: 48px;
    margin-bottom: 12px;
    animation: float 2s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-8px);
    }
}

.upload-text {
    font-size: 16px;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: 8px;
}

.upload-hint {
    font-size: 13px;
    color: var(--color-text-tertiary);
}

/* 图片预览容器 */
.image-preview-container {
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
}

#previewCanvas {
    max-width: 100%;
    max-height: 300px;
    border-radius: var(--radius-md);
}

.btn-remove-image {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.6);
    border: none;
    color: #fff;
    font-size: 14px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.btn-remove-image:hover {
    background: rgba(220, 38, 38, 0.8);
}

/* 工具面板 */
.tool-panel {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    padding: 16px;
    margin-bottom: 16px;
}

.panel-section {
    margin-bottom: 20px;
}

.panel-section:last-child {
    margin-bottom: 0;
}

.panel-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: 12px;
}

.panel-hint {
    font-size: 13px;
    color: var(--color-text-tertiary);
    padding: 12px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    margin-top: 12px;
}

/* 质量选项 */
.quality-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.quality-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 14px 10px;
    background: var(--color-bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
}

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

.quality-btn.active {
    border-color: var(--color-primary);
    background: rgba(255, 224, 51, 0.1);
}

.quality-icon {
    font-size: 24px;
}

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

.quality-desc {
    font-size: 12px;
    color: var(--color-text-tertiary);
}

/* 格式和尺寸选项 */
.format-options,
.size-options {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.format-btn,
.size-btn {
    padding: 10px 16px;
    background: var(--color-bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-primary);
    cursor: pointer;
    transition: all 0.2s;
}

.format-btn:hover,
.size-btn:hover {
    border-color: var(--color-border-hover);
}

.format-btn.active,
.size-btn.active {
    border-color: var(--color-primary);
    background: rgba(255, 224, 51, 0.1);
    color: var(--color-primary);
}

/* 裁剪比例选项 */
.ratio-options {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.ratio-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 12px 14px;
    background: var(--color-bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
    min-width: 56px;
}

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

.ratio-btn.active {
    border-color: var(--color-primary);
    background: rgba(255, 224, 51, 0.1);
}

.ratio-icon {
    font-size: 18px;
}

.ratio-name {
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-primary);
}

/* 高清增强选项 */
.enhance-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.enhance-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 16px 12px;
    background: var(--color-bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
}

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

.enhance-btn.active {
    border-color: var(--color-primary);
    background: rgba(255, 224, 51, 0.1);
}

.enhance-icon {
    font-size: 28px;
}

.enhance-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-primary);
}

.enhance-desc {
    font-size: 12px;
    color: var(--color-text-tertiary);
}

/* 滑块组 */
.slider-group {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.slider-row {
    display: flex;
    align-items: center;
    gap: 12px;
}

.slider-row label {
    width: 60px;
    font-size: 13px;
    color: var(--color-text-secondary);
}

.slider-row input[type="range"] {
    flex: 1;
    height: 6px;
    -webkit-appearance: none;
    background: var(--color-bg-tertiary);
    border-radius: 3px;
    outline: none;
}

.slider-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    background: var(--color-primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.slider-value {
    width: 48px;
    text-align: right;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-primary);
}

/* 滤镜选项 */
.filter-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.filter-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 14px 10px;
    background: var(--color-bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
}

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

.filter-btn.active {
    border-color: var(--color-primary);
    background: rgba(255, 224, 51, 0.1);
}

.filter-icon {
    font-size: 24px;
}

.filter-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-primary);
}

/* 贴纸选项 */
.sticker-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.sticker-btn {
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.sticker-btn.tag-red {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: #fff;
}

.sticker-btn.tag-orange {
    background: linear-gradient(135deg, #f97316, #ea580c);
    color: #fff;
}

.sticker-btn.tag-yellow {
    background: linear-gradient(135deg, #eab308, #ca8a04);
    color: #000;
}

.sticker-btn.tag-green {
    background: linear-gradient(135deg, #22c55e, #16a34a);
    color: #fff;
}

.sticker-btn.tag-blue {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #fff;
}

.sticker-btn.tag-purple {
    background: linear-gradient(135deg, #a855f7, #9333ea);
    color: #fff;
}

.sticker-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* 文字输入组 */
.text-input-group {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.text-input-group .input {
    width: 100%;
    padding: 12px 14px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 14px;
    color: var(--color-text-primary);
}

.text-options {
    display: flex;
    gap: 10px;
}

.text-options input[type="color"] {
    width: 44px;
    height: 36px;
    padding: 2px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.text-options select {
    flex: 1;
    padding: 8px 12px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--color-text-primary);
}

/* 拼图选项 */
.collage-options {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.collage-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 12px 8px;
    background: var(--color-bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
}

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

.collage-btn.active {
    border-color: var(--color-primary);
}

.collage-preview {
    width: 40px;
    height: 40px;
    display: grid;
    gap: 2px;
    background: var(--color-bg-primary);
    border-radius: 4px;
    padding: 3px;
}

.collage-preview div {
    background: var(--color-primary);
    border-radius: 2px;
}

.collage-preview.layout-2h {
    grid-template-columns: 1fr 1fr;
}

.collage-preview.layout-2v {
    grid-template-rows: 1fr 1fr;
}

.collage-preview.layout-4grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
}

.collage-preview.layout-9grid {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
}

.collage-btn span:last-child {
    font-size: 11px;
    color: var(--color-text-tertiary);
}

/* 操作按钮 */
.action-buttons {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
}

.action-buttons .btn {
    flex: 1;
    padding: 14px;
    font-size: 15px;
    font-weight: 600;
}

/* 图片信息 */
.image-info {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
    padding: 16px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
}

.info-row:not(:last-child) {
    border-bottom: 1px solid var(--color-border);
}

.info-label {
    font-size: 13px;
    color: var(--color-text-tertiary);
}

.info-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-primary);
}