/* 图片格式转换 - 纯前端 */
.ic-card {
    min-height: 520px;
}

.ic-card.is-working {
    box-shadow: 0 8px 32px rgba(16, 185, 129, .12);
}

.ic-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 6px 8px;
    padding: 16px 20px;
    background: linear-gradient(135deg, #ecfdf5 0%, #f0fdf9 50%, #fff 100%);
    border-bottom: 1px solid rgba(16, 185, 129, .1);
}

.ic-step {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .85);
    border: 1px solid #e8ecf0;
    color: #888;
    font-size: 12px;
    transition: all .3s;
}

.ic-step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #e8ecf0;
    color: #666;
    font-size: 11px;
    font-weight: 700;
}

.ic-step.is-active {
    background: #fff;
    border-color: #10b981;
    color: #059669;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(16, 185, 129, .15);
}

.ic-step.is-active .ic-step-num {
    background: linear-gradient(135deg, #10b981, #34d399);
    color: #fff;
}

.ic-step.is-done {
    background: #ecfdf5;
    border-color: #a7f3d0;
    color: #047857;
}

.ic-step.is-done .ic-step-num {
    background: #10b981;
    color: #fff;
}

.ic-step-arrow {
    width: 18px;
    height: 2px;
    background: linear-gradient(90deg, #d0d7de, #10b981);
    border-radius: 1px;
    opacity: .45;
}

.ic-hero {
    padding: 24px 28px 28px;
}

.ic-hero-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 24px;
    align-items: start;
}

.ic-upload-inner {
    min-height: 300px;
}

.ic-demo-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-bottom: 18px;
}

.ic-demo {
    position: relative;
    width: 88px;
    height: 88px;
    border-radius: 12px;
    border: 2px solid #e0e6ed;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 8px;
    text-align: center;
}

.ic-demo--from {
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    border-color: #93c5fd;
}

.ic-demo--to {
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
    border-color: #10b981;
}

.ic-demo-ext {
    font-size: 18px;
    font-weight: 800;
    letter-spacing: .5px;
    color: #047857;
    line-height: 1;
}

.ic-demo-label {
    font-size: 10px;
    color: #64748b;
    font-weight: 600;
}

.ic-demo--to .ic-demo-label {
    color: #059669;
}

.ic-demo-formats {
    font-size: 9px;
    font-weight: 700;
    color: #475569;
    line-height: 1.3;
    letter-spacing: -.2px;
}

.ic-demo-arrow {
    font-size: 20px;
    color: #10b981;
    font-weight: 700;
}

.ic-upload-title {
    font-size: 20px;
    font-weight: 700;
    color: #1a1a2e;
    margin: 0 0 8px;
    text-align: center;
}

.ic-upload-desc {
    font-size: 14px;
    color: #64748b;
    margin: 0 0 18px;
    text-align: center;
    max-width: 420px;
}

.ic-upload-hint {
    font-size: 12px;
    color: #94a3b8;
    margin: 14px 0 0;
    text-align: center;
}

.ic-privacy-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 12px;
    padding: 6px 14px;
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
    border-radius: 999px;
    font-size: 12px;
    color: #047857;
    font-weight: 600;
}

.ic-settings {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 20px;
}

.ic-settings-title {
    font-size: 15px;
    font-weight: 700;
    color: #1e293b;
    margin: 0 0 6px;
}

.ic-settings-tip {
    font-size: 12px;
    color: #94a3b8;
    margin: 0 0 16px;
}

.ic-setting-block {
    margin-bottom: 18px;
}

.ic-setting-block:last-child {
    margin-bottom: 0;
}

.ic-setting-label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: #475569;
    margin-bottom: 10px;
}

.ic-format-group .ai-tool-chip {
    min-width: 52px;
    text-align: center;
    text-transform: uppercase;
    font-weight: 600;
    font-size: 12px;
}

.ic-card .ai-tool-chip.is-active {
    background: #10b981;
    border-color: #10b981;
}

.ic-card .ai-tool-chip:hover {
    border-color: #10b981;
    color: #059669;
}

.ic-card .ai-tool-chip.is-active:hover {
    color: #fff;
}

.ic-setting-label em.ic-setting-sublabel {
    font-style: normal;
    font-weight: 400;
    font-size: 11px;
    color: #94a3b8;
    margin-left: 6px;
}

.ic-scale-mode-group {
    margin-bottom: 10px;
}

.ic-scale-mode-group .ai-tool-chip {
    font-size: 11px;
    padding: 6px 10px;
}

.ic-scale-panel {
    margin-top: 10px;
    padding: 12px;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
}

.ic-scale-panel[hidden] {
    display: none !important;
}

.ic-scale-preset-group .ai-tool-chip {
    min-width: 52px;
    cursor: pointer;
    pointer-events: auto;
}

.ic-scale-panel:not([hidden]) {
    pointer-events: auto;
}

.ic-scale-input-row {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.ic-scale-input-row label {
    font-size: 12px;
    color: #64748b;
    font-weight: 600;
    min-width: 72px;
}

.ic-scale-input-row input[type="number"] {
    flex: 1;
    min-width: 80px;
    max-width: 120px;
    padding: 7px 10px;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    color: #1e293b;
}

.ic-scale-input-row input[type="number"]:focus {
    outline: none;
    border-color: #10b981;
    box-shadow: 0 0 0 2px rgba(16, 185, 129, .15);
}

.ic-scale-input-row span {
    font-size: 12px;
    color: #64748b;
    font-weight: 600;
}

.ic-scale-hint {
    margin: 8px 0 0;
    font-size: 11px;
    color: #94a3b8;
    line-height: 1.4;
}

.ic-file-meta .ic-tag--size {
    background: #ecfdf5;
    color: #047857;
}

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

.ic-quality-row input[type="range"] {
    flex: 1;
    accent-color: #10b981;
    height: 6px;
}

.ic-quality-val {
    min-width: 42px;
    text-align: right;
    font-size: 13px;
    font-weight: 700;
    color: #059669;
}

.ic-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 24px;
    padding: 0;
    list-style: none;
}

.ic-features li {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 16px 12px;
    background: #f8fafc;
    border-radius: 12px;
    border: 1px solid #eef2f7;
}

.ic-feature-icon {
    font-size: 24px;
    margin-bottom: 8px;
}

.ic-features strong {
    font-size: 13px;
    color: #1e293b;
    margin-bottom: 4px;
}

.ic-features span:last-child {
    font-size: 11px;
    color: #94a3b8;
}

.ic-hero-grid--compact {
    grid-template-columns: 1fr;
}

.ic-hero-grid--compact .ic-settings {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px 24px;
}

.ic-hero-grid--compact .ic-setting-block:last-child {
    grid-column: 1 / -1;
}

.ic-features[hidden],
.ai-tool-upload[hidden] {
    display: none !important;
}

@media (max-width: 700px) {
    .ic-hero-grid--compact .ic-settings {
        grid-template-columns: 1fr;
    }
}

/* 工作区 */
.ic-settings-mount {
    margin-bottom: 16px;
}

.ic-settings-mount .ic-settings {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    padding: 16px 18px;
}

.ic-settings-mount .ic-settings-title {
    font-size: 15px;
    font-weight: 700;
    color: #1e293b;
    margin: 0 0 4px;
}

.ic-settings-mount .ic-settings-tip {
    margin-bottom: 14px;
}

.ic-workspace .ic-settings-mount .ic-setting-block:last-child {
    margin-bottom: 0;
}

.ic-scale-preview {
    display: inline-block;
    margin-left: 8px;
    padding: 2px 8px;
    background: #ecfdf5;
    border-radius: 6px;
    font-size: 11px;
    color: #047857;
    font-weight: 600;
}

.ic-workspace {
    padding: 0 28px 28px;
}

.ic-workspace[hidden] {
    display: none !important;
}

.ic-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
    padding: 14px 18px;
    background: #f8fafc;
    border-radius: 14px;
    border: 1px solid #e2e8f0;
}

.ic-toolbar-left {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
}

.ic-count {
    font-size: 14px;
    font-weight: 600;
    color: #334155;
}

.ic-count em {
    font-style: normal;
    color: #10b981;
}

.ic-toolbar-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.ic-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 18px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 600;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all .2s;
    white-space: nowrap;
}

.ic-btn:disabled {
    opacity: .55;
    cursor: not-allowed;
}

.ic-btn--ghost {
    background: #fff;
    border-color: #cbd5e1;
    color: #475569;
}

.ic-btn--ghost:hover:not(:disabled) {
    border-color: #10b981;
    color: #059669;
}

.ic-btn--primary {
    background: linear-gradient(135deg, #10b981, #059669);
    color: #fff;
    box-shadow: 0 4px 14px rgba(16, 185, 129, .35);
}

.ic-btn--primary:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 6px 18px rgba(16, 185, 129, .4);
}

.ic-btn--download {
    background: linear-gradient(135deg, #0d6efd, #4dabf7);
    color: #fff;
    box-shadow: 0 4px 14px rgba(13, 110, 253, .3);
}

.ic-file-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 480px;
    overflow-y: auto;
    padding-right: 4px;
}

.ic-file-item {
    display: grid;
    grid-template-columns: 64px 1fr auto;
    gap: 14px;
    align-items: center;
    padding: 12px 14px;
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    transition: border-color .2s, box-shadow .2s;
}

.ic-file-item.is-done {
    border-color: #a7f3d0;
    background: #fafffe;
}

.ic-file-item.is-error {
    border-color: #fecaca;
    background: #fffbfb;
}

.ic-file-item.is-converting {
    border-color: #6ee7b7;
    box-shadow: 0 0 0 2px rgba(16, 185, 129, .12);
}

.ic-file-thumb {
    width: 64px;
    height: 64px;
    border-radius: 8px;
    object-fit: cover;
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
}

.ic-file-info {
    min-width: 0;
}

.ic-file-name {
    font-size: 14px;
    font-weight: 600;
    color: #1e293b;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 4px;
}

.ic-file-meta {
    font-size: 12px;
    color: #94a3b8;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.ic-file-meta .ic-tag {
    display: inline-block;
    padding: 2px 8px;
    background: #f1f5f9;
    border-radius: 4px;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 11px;
    color: #64748b;
}

.ic-file-meta .ic-tag--arrow {
    background: transparent;
    padding: 0;
    color: #10b981;
}

.ic-file-status {
    font-size: 12px;
    margin-top: 4px;
}

.ic-file-status.is-wait {
    color: #94a3b8;
}

.ic-file-status.is-ok {
    color: #059669;
    font-weight: 600;
}

.ic-file-status.is-fail {
    color: #dc2626;
}

.ic-file-actions {
    display: flex;
    flex-direction: column;
    gap: 6px;
    align-items: flex-end;
}

.ic-file-actions .ic-btn {
    padding: 6px 12px;
    font-size: 12px;
}

.ic-progress-bar {
    height: 3px;
    background: #e2e8f0;
    border-radius: 2px;
    margin-top: 8px;
    overflow: hidden;
}

.ic-progress-bar span {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, #10b981, #34d399);
    border-radius: 2px;
    transition: width .3s;
    width: 0;
}

.ic-overall-progress {
    margin-top: 16px;
    padding: 12px 16px;
    background: #ecfdf5;
    border-radius: 10px;
    font-size: 13px;
    color: #047857;
    font-weight: 600;
    text-align: center;
}

.ic-overall-progress[hidden] {
    display: none !important;
}

.ic-content {
    padding: 0 28px 28px;
    border-top: 1px solid #eef2f7;
    margin-top: 8px;
}

.ic-content .content-texthtml {
    padding-top: 20px;
    font-size: 14px;
    color: #64748b;
    line-height: 1.7;
}

@media (max-width: 900px) {
    .ic-hero-grid {
        grid-template-columns: 1fr;
    }

    .ic-features {
        grid-template-columns: 1fr;
    }

    .ic-file-item {
        grid-template-columns: 52px 1fr;
    }

    .ic-file-actions {
        grid-column: 1 / -1;
        flex-direction: row;
        justify-content: flex-end;
    }
}

@media (max-width: 576px) {
    .ic-hero,
    .ic-workspace {
        padding-left: 16px;
        padding-right: 16px;
    }

    .ic-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .ic-toolbar-actions {
        justify-content: stretch;
    }

    .ic-toolbar-actions .ic-btn {
        flex: 1;
    }
}

@media (max-width: 480px) {
    .ic-card {
        width: 100%;
        padding: 0 8px;
    }

    .ic-hero,
    .ic-workspace {
        padding-left: 8px;
        padding-right: 8px;
    }

    .ic-upload-inner {
        width: 100%;
        padding: 20px 10px;
        min-height: 220px;
    }

    .ic-hero-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .ic-toolbar {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }

    .ic-toolbar-actions {
        justify-content: stretch;
    }

    .ic-toolbar-actions .ic-btn {
        flex: 1;
    }

    .ic-btn {
        width: 100%;
        padding: 8px 12px;
        font-size: 12px;
    }

    .ic-content {
        padding: 0 8px 16px;
    }

    .ic-file-item {
        grid-template-columns: 40px 1fr;
    }
}