/* ===================================================================
   AI Image Tools - Editorial Luxury Stylesheet
   Shared across all AI image tool pages
   Design: Editorial luxury with refined typography and motion
   Easing: cubic-bezier(0.16, 1, 0.3, 1)
   =================================================================== */

/* --- Keyframe Animations --- */
@keyframes containerSlideIn {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% center;
    }
    100% {
        background-position: 200% center;
    }
}

@keyframes pulseGlow {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(var(--accent-rgb, 0,0,0), 0.2);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(var(--accent-rgb, 0,0,0), 0);
    }
}

@keyframes progressPulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes stagePulse {
    0%, 100% {
        opacity: 0.6;
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        opacity: 1;
        transform: translate(-50%, -50%) scale(1.15);
    }
}

@keyframes stageTextIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ================================================================
   1. CONTAINER - Entry Animation
   ================================================================ */
.ai-image-container {
    max-width: 1200px;
    margin: 0 auto;
    animation: containerSlideIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

/* ================================================================
   2. PROMPT AREA
   ================================================================ */
.ai-prompt-area {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl, 16px);
    padding: 28px;
    margin-bottom: 20px;
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.ai-prompt-area:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md, 0 4px 12px rgba(0,0,0,0.1));
}

.ai-prompt-area textarea {
    width: 100%;
    min-height: 140px;
    padding: 16px 20px;
    border: 1px solid var(--border);
    border-radius: var(--radius, 8px);
    font-size: var(--text-sm, 14px);
    line-height: 1.8;
    resize: vertical;
    transition: border-color 0.3s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    background: var(--bg-secondary, #f5f5f5);
    color: var(--text);
    box-sizing: border-box;
}

.ai-prompt-area textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(var(--accent-rgb, 0,0,0), 0.08);
}

.ai-prompt-area textarea::placeholder {
    color: var(--text3);
    letter-spacing: 0.01em;
}

.ai-prompt-area .hint {
    font-size: var(--text-xs, 12px);
    color: var(--text3);
    margin-top: 8px;
    letter-spacing: 0.02em;
}

/* ================================================================
   3. REFERENCE IMAGE AREA
   ================================================================ */
.ai-ref-area {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl, 16px);
    padding: 20px 28px;
    margin-bottom: 16px;
    transition: box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.ref-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.ref-label {
    font-size: var(--text-sm, 14px);
    font-weight: 600;
    color: var(--text);
    letter-spacing: 0.01em;
}

.ref-hint {
    font-size: var(--text-xs, 12px);
    color: var(--text3);
}

.ref-upload-btn {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 120px;
    height: 100px;
    border: 2px dashed var(--border-dark, #ddd);
    border-radius: var(--radius-lg, 12px);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    color: var(--text3);
    font-size: var(--text-xs, 12px);
    background: var(--bg-secondary, #f5f5f5);
}

.ref-upload-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-soft, #f5f5f5);
    transform: translateY(-2px);
}

.ref-upload-icon {
    font-size: 28px;
    line-height: 1;
    font-weight: 300;
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.ref-upload-btn:hover .ref-upload-icon {
    transform: translateY(-3px) scale(1.05);
}

.ref-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 12px;
}

.ref-preview-item {
    position: relative;
    width: 100px;
    height: 100px;
    border-radius: var(--radius, 8px);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.ref-preview-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow, 0 2px 8px rgba(0,0,0,0.06));
}

.ref-preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.ref-remove {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: none;
    background: rgba(220,38,38,0.85);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    padding: 0;
    -webkit-appearance: none;
    appearance: none;
    box-sizing: border-box;
}

.ref-remove:hover {
    transform: scale(1.1);
}

.ai-ref-area .hint {
    font-size: var(--text-xs, 12px);
    color: var(--text3);
    margin-top: 10px;
}

/* ================================================================
   4. ACTIONS
   ================================================================ */
.ai-actions {
    display: flex;
    gap: 12px;
    flex-wrap: nowrap;
    align-items: center;
}

.ai-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 24px;
    font-size: var(--text-sm, 14px);
    border: 1px solid var(--border-dark, #ddd);
    border-radius: var(--radius, 8px);
    background: transparent;
    color: var(--text);
    cursor: pointer;
    font-weight: 500;
    white-space: nowrap;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.ai-action-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-1px);
}

.ai-action-btn:active {
    transform: scale(0.97);
}

/* ================================================================
   5. GENERATE BUTTON
   ================================================================ */
.ai-generate-btn,
#generateBtn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 32px;
    font-size: var(--text-sm, 14px);
    border: none;
    border-radius: var(--radius, 8px);
    background: linear-gradient(135deg, var(--accent, #000), var(--accent-dark, #000));
    color: var(--text-inverse, #fff);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    font-weight: 600;
    white-space: nowrap;
    letter-spacing: 0.03em;
    position: relative;
    overflow: hidden;
}

.ai-generate-btn::before,
#generateBtn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent);
    background-size: 200% 100%;
    opacity: 0;
    transition: opacity 0.3s;
}

.ai-generate-btn:hover,
#generateBtn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(var(--accent-rgb, 0,0,0), 0.25);
    opacity: 0.92;
}

.ai-generate-btn:hover::before,
#generateBtn:hover::before {
    opacity: 1;
    animation: shimmer 1.5s infinite;
}

.ai-generate-btn:active,
#generateBtn:active {
    transform: scale(0.97);
    box-shadow: 0 2px 8px rgba(var(--accent-rgb, 0,0,0), 0.15);
}

.ai-generate-btn:disabled,
#generateBtn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.ai-generate-btn:disabled::before,
#generateBtn:disabled::before {
    display: none;
}

/* Loading pulse animation for generate button */
.ai-generate-btn.is-loading,
#generateBtn.is-loading {
    animation: pulseGlow 1.5s ease-in-out infinite;
    pointer-events: none;
}

.ai-generate-btn.is-loading::before,
#generateBtn.is-loading::before {
    opacity: 1;
    animation: shimmer 1.2s infinite;
}

/* SVG icons in buttons */
.btn-scenery-go svg,
.btn-scenery-reset svg,
.btn-analysis-go svg,
.btn-analysis-reset svg,
.btn-restore-go svg,
.btn-restore-reset svg {
    vertical-align: middle;
    flex-shrink: 0;
    display: block;
}

/* ================================================================
   6. RESULT AREA
   ================================================================ */
.ai-result-area,
.ai-result {
    display: none;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl, 16px);
    padding: 28px;
    margin-top: 20px;
}

.ai-result-area.is-visible,
.ai-result.is-visible {
    animation: fadeInUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.ai-result-header {
    margin-bottom: 20px;
}

.ai-result-title {
    font-size: var(--text-lg, 18px);
    font-weight: 600;
    color: var(--text);
    letter-spacing: 0.02em;
}

.ai-result-image {
    border-radius: var(--radius-lg, 12px);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.ai-result-image:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg, 0 8px 24px rgba(0,0,0,0.12));
}

.ai-result-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Result sub-components */
.ai-result .result-images {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
}

.ai-result .ai-image-item {
    width: 100%;
    max-width: 512px;
    border-radius: var(--radius-lg, 12px);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.ai-result .ai-image-item:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg, 0 8px 24px rgba(0,0,0,0.12));
}

.ai-result .ai-image-item img {
    width: 100%;
    height: auto;
    display: block;
}

.ai-result .result-info {
    font-size: var(--text-xs, 12px);
    color: var(--text2);
    margin-top: 14px;
    text-align: center;
    letter-spacing: 0.02em;
}

/* ================================================================
   7. RESULT ACTIONS
   ================================================================ */
.ai-result-actions,
.ai-result .result-actions {
    display: flex;
    gap: 10px;
    margin-top: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.ai-result-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    font-size: var(--text-sm, 14px);
    border: 1px solid var(--border-dark, #ddd);
    border-radius: var(--radius, 8px);
    background: var(--card);
    color: var(--text);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    white-space: nowrap;
}

.ai-result-action-btn:hover {
    transform: translateY(-2px);
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: var(--shadow, 0 2px 8px rgba(0,0,0,0.06));
}

.ai-result-action-btn:active {
    transform: scale(0.97);
}

/* ================================================================
   8. PROGRESS BAR
   ================================================================ */
.ai-progress {
    margin: 20px 0;
    border-radius: var(--radius, 8px);
    overflow: hidden;
}

.ai-progress-bar {
    height: 6px;
    border-radius: 3px;
    background: var(--border);
    position: relative;
    overflow: hidden;
}

.ai-progress-bar::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        var(--accent, #000),
        var(--accent-light, #333),
        var(--accent, #000)
    );
    background-size: 200% 100%;
    border-radius: 3px;
    animation: shimmer 1.5s ease-in-out infinite, progressPulse 2s ease-in-out infinite;
}

.ai-progress-text {
    font-size: var(--text-xs, 12px);
    color: var(--text3);
    margin-top: 8px;
    text-align: center;
    letter-spacing: 0.03em;
}

/* ================================================================
   9. HISTORY LINK
   ================================================================ */
.ai-history-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: var(--text-sm, 14px);
    color: var(--accent);
    text-decoration: none;
    padding: 8px 0;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    letter-spacing: 0.02em;
    font-weight: 500;
}

.ai-history-link:hover {
    opacity: 0.75;
    transform: translateX(4px);
}

/* ================================================================
   10. STYLE SELECTION CARDS
   ================================================================ */
.ai-style-section {
    margin-bottom: 20px;
}

.ai-style-header {
    margin-bottom: 14px;
}

.ai-style-title {
    font-size: var(--text-base, 16px);
    font-weight: 600;
    color: var(--text);
    letter-spacing: 0.02em;
}

.ai-style-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 14px;
}

.ai-style-card {
    position: relative;
    border: 2px solid var(--border);
    border-radius: var(--radius-lg, 12px);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    background: var(--card);
}

.ai-style-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-border, var(--border-dark));
    box-shadow: var(--shadow-md, 0 4px 12px rgba(0,0,0,0.1));
}

.ai-style-card:active {
    transform: scale(0.97);
}

.ai-style-card.selected {
    border-color: var(--accent);
    transform: scale(0.97);
    box-shadow: 0 0 0 3px rgba(var(--accent-rgb, 0,0,0), 0.1);
}

.ai-style-card.selected::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    z-index: 1;
}

.ai-style-card img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    display: block;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.ai-style-card:hover img {
    transform: scale(1.05);
}

.ai-style-name {
    padding: 10px 12px;
    font-size: var(--text-xs, 12px);
    font-weight: 500;
    color: var(--text);
    text-align: center;
    letter-spacing: 0.02em;
    border-top: 1px solid var(--border-light, #f0f0f0);
}

/* ================================================================
   11. PARAMETER SECTION
   ================================================================ */
.ai-param-section {
    margin-bottom: 20px;
}

.ai-param-header {
    margin-bottom: 14px;
}

.ai-param-title {
    font-size: var(--text-base, 16px);
    font-weight: 600;
    color: var(--text);
    letter-spacing: 0.02em;
}

.ai-param-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.ai-param-item {
    flex: 1;
    min-width: 160px;
}

.ai-param-label {
    display: block;
    font-size: var(--text-xs, 12px);
    font-weight: 600;
    color: var(--text2);
    margin-bottom: 8px;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.ai-param-select,
.ai-param-input {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius, 8px);
    font-size: var(--text-sm, 14px);
    color: var(--text);
    background: var(--bg-secondary, #f5f5f5);
    transition: border-color 0.3s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-sizing: border-box;
    appearance: none;
    -webkit-appearance: none;
}

.ai-param-select:focus,
.ai-param-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(var(--accent-rgb, 0,0,0), 0.08);
}

.ai-param-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23666' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round' fill='none'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
}

/* Legacy param group (kept for backward compatibility) */
.ai-params {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 16px;
}

.ai-param-group {
    flex: 1;
    min-width: 140px;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg, 12px);
    padding: 14px 16px;
    background: var(--card);
    transition: box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.ai-param-group:hover {
    box-shadow: var(--shadow, 0 2px 8px rgba(0,0,0,0.06));
}

.ai-param-group label {
    display: block;
    font-size: var(--text-xs, 12px);
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
    letter-spacing: 0.03em;
}

.ai-param-group .radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.ai-param-group .radio-group label {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-weight: 400;
    font-size: var(--text-xs, 12px);
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    background: var(--bg-secondary, #f5f5f5);
    white-space: nowrap;
    letter-spacing: 0.01em;
}

.ai-param-group .radio-group label:hover {
    border-color: var(--accent);
    background: var(--accent-soft, #f5f5f5);
}

.ai-param-group .radio-group input[type="radio"]:checked + label {
    border-color: var(--accent);
    background: var(--accent);
    color: var(--text-inverse, #fff);
}

/* Range / N control */
.ai-n-control {
    display: flex;
    align-items: center;
    gap: 10px;
}

.ai-n-control input[type="range"] {
    flex: 1;
    max-width: 120px;
    accent-color: var(--accent);
}

.ai-n-control span {
    font-size: var(--text-sm, 14px);
    font-weight: 600;
    min-width: 20px;
    text-align: center;
    color: var(--text);
}

/* ================================================================
   12. UPLOAD AREA
   ================================================================ */
.ai-upload-area {
    border: 2px dashed var(--accent-border, var(--border-dark, #ddd));
    border-radius: var(--radius-xl, 16px);
    padding: 40px 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    background: var(--card);
    position: relative;
    overflow: hidden;
}

.ai-upload-area::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--accent-soft, rgba(0,0,0,0.02));
    opacity: 0;
    transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.ai-upload-area:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow, 0 2px 8px rgba(0,0,0,0.06));
}

.ai-upload-area:hover::before {
    opacity: 1;
}

.ai-upload-area:hover .ai-upload-icon {
    transform: translateY(-4px) scale(1.1);
    color: var(--accent);
}

.ai-upload-area.dragover {
    border-color: var(--accent);
    background: var(--accent-soft, rgba(0,0,0,0.04));
    transform: translateY(-4px);
    box-shadow: var(--shadow-md, 0 4px 12px rgba(0,0,0,0.1));
}

.ai-upload-area.dragover::before {
    opacity: 1;
}

.ai-upload-area.dragover .ai-upload-icon {
    transform: scale(1.2);
    color: var(--accent);
}

.ai-upload-icon {
    font-size: 40px;
    color: var(--text3);
    margin-bottom: 12px;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    z-index: 1;
}

.ai-upload-text {
    font-size: var(--text-sm, 14px);
    color: var(--text);
    font-weight: 500;
    margin-bottom: 6px;
    position: relative;
    z-index: 1;
    letter-spacing: 0.01em;
}

.ai-upload-hint {
    font-size: var(--text-xs, 12px);
    color: var(--text3);
    position: relative;
    z-index: 1;
}

/* ================================================================
   13. COMPARE AREA
   ================================================================ */
.ai-compare-area {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 16px;
}

.ai-compare-item {
    border-radius: var(--radius-lg, 12px);
    overflow: hidden;
    background: var(--card);
    border: 1px solid var(--border);
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.ai-compare-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md, 0 4px 12px rgba(0,0,0,0.1));
}

.ai-compare-label {
    font-size: var(--text-xs, 12px);
    font-weight: 600;
    color: var(--text2);
    padding: 10px 14px;
    text-align: center;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border-light, #f0f0f0);
}

.ai-compare-img {
    overflow: hidden;
}

.ai-compare-img img {
    width: 100%;
    display: block;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.ai-compare-item:hover .ai-compare-img img {
    transform: scale(1.03);
}

/* 面包屑导航 SVG 图标垂直对齐 */
.m-breadcrumb svg,
.ecom-breadcrumb svg,
.office-breadcrumb svg {
    vertical-align: middle;
    flex-shrink: 0;
}

/* ================================================================
   14. FREE QUOTA INFO BAR (Capsule style) - 横向滚动新版
   ================================================================ */
.ai-free-info,
.qbar {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text2, #666);
    padding: 10px 16px;
    background: var(--bg-secondary, #f5f5f5);
    border-radius: 50px;
    margin-bottom: 16px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    line-height: 1.4;
    flex-wrap: nowrap;
    white-space: nowrap;
}

.qbar::-webkit-scrollbar,
.ai-free-info::-webkit-scrollbar {
    display: none;
}

/* 配额项胶囊 */
.qbar .qi,
.ai-free-info .qi {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 14px;
    background: var(--card, #fff);
    border: 1px solid var(--border, #eee);
    border-radius: 50px;
    white-space: nowrap;
    flex-shrink: 0;
    font-size: 12px;
    color: var(--text2, #666);
    transition: all 0.2s ease;
}

.qbar .qi strong,
.ai-free-info .qi strong {
    font-weight: 700;
    color: var(--accent, #000);
    font-size: 13px;
    font-variant-numeric: tabular-nums;
}

/* 分隔符 */
.qbar .qs,
.ai-free-info .qs {
    color: var(--border, #ddd);
    flex-shrink: 0;
    font-size: 10px;
    margin: 0 2px;
}

/* 积分项特殊样式 */
.qbar .qi:first-child,
.ai-free-info .qi:first-child {
    background: linear-gradient(135deg, #000 0%, #333 100%);
    border-color: #000;
    color: #fff;
}

.qbar .qi:first-child strong,
.ai-free-info .qi:first-child strong {
    color: #fff;
}

/* 会员额度项 */
.qbar .qi.member-quota,
.ai-free-info .qi.member-quota {
    background: linear-gradient(135deg, #c8a951 0%, #a88a3d 100%);
    border-color: #c8a951;
    color: #fff;
}

.qbar .qi.member-quota strong,
.ai-free-info .qi.member-quota strong {
    color: #fff;
}

/* 免费次数项 */
.qbar .qi.free-quota,
.ai-free-info .qi.free-quota {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border-color: #10b981;
    color: #fff;
}

.qbar .qi.free-quota strong,
.ai-free-info .qi.free-quota strong {
    color: #fff;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .ai-free-info,
    .qbar {
        padding: 8px 14px;
        gap: 6px;
        border-radius: 50px;
        margin-bottom: 12px;
        justify-content: flex-start;
    }
    
    .qbar .qi,
    .ai-free-info .qi {
        padding: 5px 12px;
        font-size: 11px;
    }
    
    .qbar .qi strong,
    .ai-free-info .qi strong {
        font-size: 12px;
    }
}

/* 旧版样式保留兼容 */
.ai-free-info-old {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 6px;
    row-gap: 8px;
    font-size: var(--text-xs, 12px);
    color: var(--success, #10b981);
    padding: 12px 16px;
    background: rgba(16, 185, 129, 0.06);
    border: 1px solid rgba(16, 185, 129, 0.15);
    border-radius: var(--radius-lg, 12px);
    margin-bottom: 16px;
    flex-wrap: wrap;
    line-height: 1;
}

.ai-quota-capsule {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    background: rgba(255,255,255,0.65);
    border-radius: 20px;
    white-space: nowrap;
    font-size: var(--text-xs, 12px);
    color: var(--text2);
    transition: background 0.2s;
    line-height: 1;
}

.ai-quota-capsule svg {
    flex-shrink: 0;
    display: block;
}

.ai-quota-num {
    font-weight: 700;
    color: var(--success, #10b981);
    font-size: var(--text-xs, 12px);
    font-variant-numeric: tabular-nums;
    line-height: 1;
}

.ai-quota-capsule.highlight .ai-quota-num {
    color: var(--warning, #f59e0b);
}

.ai-quota-capsule.accent {
    background: rgba(var(--accent-rgb, 0,0,0), 0.06);
}

.ai-quota-capsule.accent .ai-quota-num {
    color: var(--accent);
}

.ai-quota-sep {
    width: 1px;
    height: 16px;
    background: rgba(16, 185, 129, 0.2);
    border-radius: 1px;
    flex-shrink: 0;
}

/* Dark mode quota overrides */
.dark-mode .ai-free-info {
    background: rgba(16, 185, 129, 0.08);
    border-color: rgba(16, 185, 129, 0.2);
    color: var(--success, #10b981);
}

.dark-mode .ai-quota-capsule {
    background: rgba(255,255,255,0.06);
    color: var(--text2);
    line-height: 1;
}

.dark-mode .ai-quota-capsule.accent {
    background: rgba(var(--accent-rgb, 0,0,0), 0.1);
}

.dark-mode .ai-quota-capsule.accent .ai-quota-num {
    color: var(--accent-light);
}

.dark-mode .ai-quota-num {
    color: var(--success, #10b981);
    line-height: 1;
}

.dark-mode .ai-quota-capsule.highlight .ai-quota-num {
    color: var(--warning, #f59e0b);
}

.dark-mode .ai-quota-sep {
    background: rgba(16, 185, 129, 0.25);
}

/* Responsive: <640px capsule wrap */
@media (max-width: 639px) {
    .ai-free-info {
        gap: 6px;
        padding: 10px 14px;
        border-radius: var(--radius-lg, 12px);
        justify-content: flex-start;
    }
    .ai-quota-capsule {
        font-size: 11px;
        padding: 6px 10px;
        border-radius: 16px;
        line-height: 1;
    }
    .ai-quota-num {
        font-size: 12px;
        line-height: 1;
    }
    .ai-quota-sep {
        display: none;
    }
}

/* Tab 2-4 shared quota class fallback - 使用统一横向滚动样式 */
.scenery-quota,
.analysis-quota,
.restore-quota,
.beauty-quota,
.makeup-quota,
.outfit-quota,
.wc-quota-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text2, #666);
    padding: 10px 16px;
    background: var(--bg-secondary, #f5f5f5);
    border-radius: 50px;
    margin-bottom: 16px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    line-height: 1.4;
    flex-wrap: nowrap;
    white-space: nowrap;
}

.scenery-quota::-webkit-scrollbar,
.analysis-quota::-webkit-scrollbar,
.restore-quota::-webkit-scrollbar,
.beauty-quota::-webkit-scrollbar,
.makeup-quota::-webkit-scrollbar,
.outfit-quota::-webkit-scrollbar,
.wc-quota-bar::-webkit-scrollbar {
    display: none;
}

/* 配额项胶囊 */
.scenery-quota .qi,
.analysis-quota .qi,
.restore-quota .qi,
.beauty-quota .qi,
.makeup-quota .qi,
.outfit-quota .qi,
.wc-quota-bar .qi {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 14px;
    background: var(--card, #fff);
    border: 1px solid var(--border, #eee);
    border-radius: 50px;
    white-space: nowrap;
    flex-shrink: 0;
    font-size: 12px;
    color: var(--text2, #666);
    transition: all 0.2s ease;
}

.scenery-quota .qi strong,
.analysis-quota .qi strong,
.restore-quota .qi strong,
.beauty-quota .qi strong,
.makeup-quota .qi strong,
.outfit-quota .qi strong,
.wc-quota-bar .qi strong {
    font-weight: 700;
    color: var(--accent, #000);
    font-size: 13px;
    font-variant-numeric: tabular-nums;
}

/* 分隔符 */
.scenery-quota .qs,
.analysis-quota .qs,
.restore-quota .qs,
.beauty-quota .qs,
.makeup-quota .qs,
.outfit-quota .qs,
.wc-quota-bar .qs {
    color: var(--border, #ddd);
    flex-shrink: 0;
    font-size: 10px;
    margin: 0 2px;
}

/* 积分项特殊样式 */
.scenery-quota .qi:first-child,
.analysis-quota .qi:first-child,
.restore-quota .qi:first-child,
.beauty-quota .qi:first-child,
.makeup-quota .qi:first-child,
.outfit-quota .qi:first-child,
.wc-quota-bar .qi:first-child {
    background: linear-gradient(135deg, #000 0%, #333 100%);
    border-color: #000;
    color: #fff;
}

.scenery-quota .qi:first-child strong,
.analysis-quota .qi:first-child strong,
.restore-quota .qi:first-child strong,
.beauty-quota .qi:first-child strong,
.makeup-quota .qi:first-child strong,
.outfit-quota .qi:first-child strong,
.wc-quota-bar .qi:first-child strong {
    color: #fff;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .scenery-quota,
    .analysis-quota,
    .restore-quota,
    .beauty-quota,
    .makeup-quota,
    .outfit-quota,
    .wc-quota-bar {
        padding: 8px 14px;
        gap: 6px;
        border-radius: 50px;
        margin-bottom: 12px;
        justify-content: flex-start;
    }
    
    .scenery-quota .qi,
    .analysis-quota .qi,
    .restore-quota .qi,
    .beauty-quota .qi,
    .makeup-quota .qi,
    .outfit-quota .qi,
    .wc-quota-bar .qi {
        padding: 5px 12px;
        font-size: 11px;
    }
    
    .scenery-quota .qi strong,
    .analysis-quota .qi strong,
    .restore-quota .qi strong,
    .beauty-quota .qi strong,
    .makeup-quota .qi strong,
    .outfit-quota .qi strong,
    .wc-quota-bar .qi strong {
        font-size: 12px;
    }
}

/* ================================================================
   15. QUOTA INFO BAR (emoji-based stats row) - 旧版兼容
   ================================================================ */
.qbar-old {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 2px 0;
    padding: 14px 0;
    font-size: 13px;
    margin: 16px 0 24px;
    line-height: 1.6;
    color: var(--success, #10b981);
    scrollbar-width: none;
}
.qbar-old::-webkit-scrollbar {
    display: none;
}
.qi-old {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    white-space: nowrap;
    padding: 2px 6px;
}
.qs-old {
    opacity: 0.4;
    user-select: none;
    padding: 0 3px;
    font-weight: 300;
}
.qbar strong {
    font-weight: 700;
}

/* ================================================================
   16. LOADING STATE
   ================================================================ */
.ai-loading {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 14px;
    padding: 48px;
    color: var(--text);
    font-size: var(--text-sm, 14px);
}

.ai-loading .spinner {
    width: 28px;
    height: 28px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Analysis loading */
.analysis-loading {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
    text-align: center;
}

.analysis-loading .spinner {
    display: block;
    width: 48px;
    height: 48px;
    border: 4px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    margin: 0 auto 20px;
}

/* ================================================================
   16. MULTI-STAGE LOADING
   ================================================================ */
.ai-stage-loading {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px 36px;
    text-align: center;
}

.ai-stage-spinner-wrap {
    position: relative;
    width: 72px;
    height: 72px;
    margin-bottom: 28px;
}

.ai-stage-spinner-ring {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    border: 4px solid var(--border);
    border-top-color: var(--accent);
    animation: spin 0.8s linear infinite;
}

.ai-stage-spinner-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 28px;
    line-height: 1;
    animation: stagePulse 2s ease-in-out infinite;
}

/* Stage progress dots */
.ai-stage-progress {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    justify-content: center;
}

.ai-stage-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border);
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.ai-stage-dot.active {
    background: var(--accent);
    box-shadow: 0 0 0 4px rgba(var(--accent-rgb, 0,0,0), 0.1);
    transform: scale(1.3);
}

.ai-stage-dot.done {
    background: var(--success, #10b981);
}

.ai-stage-main-text {
    font-size: var(--text-base, 16px);
    font-weight: 600;
    color: var(--text);
    margin-bottom: 6px;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    min-height: 24px;
}

.ai-stage-sub-text {
    font-size: var(--text-xs, 12px);
    color: var(--text3);
    min-height: 20px;
    transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Stage text transition */
.ai-stage-main-text.entering {
    animation: stageTextIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ================================================================
   17. IMAGE SAVE HINT
   ================================================================ */
.ai-save-hint {
    font-size: var(--text-xs, 12px);
    color: var(--text3);
    text-align: center;
    margin-top: 10px;
    line-height: 1.6;
}

/* ================================================================
   18. IMAGE VIEW LINK
   ================================================================ */
.ai-result .ai-image-wrap img {
    width: 100%;
    height: auto;
    display: block;
    -webkit-touch-callout: default;
}

.ai-result .ai-image-actions {
    display: flex;
    justify-content: center;
    padding: 8px 0 12px;
    background: var(--bg-secondary, #f5f5f5);
}

.ai-image-view-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: var(--text-xs, 12px);
    color: var(--accent);
    text-decoration: none;
    padding: 4px 14px;
    border-radius: var(--radius-sm, 4px);
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.ai-image-view-link:hover {
    background: var(--accent-soft, rgba(0,0,0,0.04));
    text-decoration: none;
}

/* ================================================================
   19. HISTORY PAGE
   ================================================================ */
.ai-history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 10px;
}

/* Category tabs */
.history-cat-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border);
    flex-wrap: wrap;
}

.history-cat-tab {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 10px 20px;
    font-size: var(--text-xs, 12px);
    font-weight: 600;
    text-decoration: none;
    color: var(--text3);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    white-space: nowrap;
    letter-spacing: 0.02em;
}

.history-cat-tab:hover {
    color: var(--text);
}

.history-cat-tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.history-cat-count {
    font-size: 11px;
    background: var(--bg-secondary, #f5f5f5);
    color: var(--text3);
    padding: 1px 7px;
    border-radius: 10px;
    font-weight: 500;
}

.history-cat-tab.active .history-cat-count {
    background: var(--accent);
    color: var(--text-inverse, #fff);
}

/* History category badges */
.history-badge {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    font-size: 11px;
    padding: 2px 8px;
    border-radius: var(--radius-sm, 4px);
    font-weight: 500;
    margin-right: 6px;
}

.history-badge-generate { background: rgba(59,130,246,0.08); color: var(--info, #3b82f6); }
.history-badge-scenery  { background: rgba(16,185,129,0.08); color: var(--success, #10b981); }
.history-badge-analysis { background: rgba(245,158,11,0.08); color: var(--warning, #f59e0b); }
.history-badge-restore  { background: rgba(239,68,68,0.08); color: var(--error, #ef4444); }
.history-badge-beauty   { background: rgba(236,72,153,0.08); color: #ec4899; }
.history-badge-outfit   { background: rgba(139,92,246,0.08); color: #8b5cf6; }
.history-badge-makeup   { background: rgba(168,85,247,0.08); color: #a855f7; }
.history-badge-style_gen { background: rgba(59,130,246,0.08); color: var(--info, #3b82f6); }
.history-badge-video { background: rgba(244,114,182,0.08); color: #f472b6; }

.ai-history-list {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
    overflow: hidden;
}

.ai-history-item {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg, 12px);
    padding: 16px;
    display: flex;
    gap: 16px;
    align-items: flex-start;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    min-width: 0;
}

.ai-history-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md, 0 4px 12px rgba(0,0,0,0.1));
}

.ai-history-item .thumb {
    width: 80px;
    min-height: 80px;
    border-radius: var(--radius, 8px);
    overflow: hidden;
    flex-shrink: 0;
    background: var(--bg-secondary, #f5f5f5);
    display: flex;
    align-items: center;
    justify-content: center;
}

.ai-history-item .thumb img {
    width: 100%;
    height: auto;
    display: block;
}

.ai-history-item .thumb .no-img {
    font-size: 28px;
    opacity: 0.3;
}

.ai-history-item .info {
    flex: 1;
    min-width: 0;
    overflow: hidden;
}

.ai-history-item .info .prompt-text {
    font-size: var(--text-sm, 14px);
    font-weight: 500;
    color: var(--text);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    word-break: break-word;
}

.ai-history-item .info .meta {
    font-size: var(--text-xs, 12px);
    color: var(--text3);
    margin-top: 4px;
    overflow-wrap: break-word;
    word-break: break-word;
}

.ai-history-item .info .meta .tag {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    vertical-align: middle;
    padding: 1px 6px;
    border-radius: var(--radius-sm, 4px);
    font-size: 11px;
    margin-right: 4px;
}

.ai-history-item .info .meta .tag-free {
    background: rgba(16,185,129,0.08);
    color: var(--success, #10b981);
}

.ai-history-item .info .meta .tag-paid {
    background: rgba(245,158,11,0.08);
    color: var(--warning, #f59e0b);
}

.ai-history-item .info .meta .tag-success {
    background: rgba(16,185,129,0.08);
    color: var(--success, #10b981);
}

.ai-history-item .info .meta .tag-failed {
    background: rgba(239,68,68,0.08);
    color: var(--error, #ef4444);
}

.ai-history-item .actions {
    flex-shrink: 0;
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    min-width: 0;
}

.ai-history-item .actions a {
    font-size: var(--text-xs, 12px);
    padding: 4px 10px;
    border-radius: var(--radius, 8px);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ================================================================
   20. PAGINATION
   ================================================================ */
.ai-pagination {
    display: flex;
    justify-content: center;
    gap: 6px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.ai-pagination a,
.ai-pagination span {
    padding: 6px 13px;
    border: 1px solid var(--border);
    border-radius: var(--radius, 8px);
    font-size: var(--text-xs, 12px);
    text-decoration: none;
    color: var(--text2);
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.ai-pagination a:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.ai-pagination .current {
    background: var(--accent);
    color: var(--text-inverse, #fff);
    border-color: var(--accent);
}

/* ================================================================
   21. EMPTY STATE
   ================================================================ */
.ai-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--text3);
}

.ai-empty .icon {
    font-size: 48px;
    margin-bottom: 12px;
    opacity: 0.4;
}

/* ================================================================
   22. ANALYSIS SUBTABS
   ================================================================ */
.analysis-subtabs {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    justify-content: center;
    flex-wrap: wrap;
}

.analysis-subtab {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 10px 18px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius, 8px);
    background: var(--card);
    color: var(--text2);
    font-size: var(--text-sm, 14px);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    min-width: 0;
    flex: 0 1 auto;
    white-space: nowrap;
}

.analysis-subtab:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--card);
}

.analysis-subtab.active {
    border-color: var(--accent);
    background: var(--accent);
    color: var(--text-inverse, #fff);
}

.analysis-subtab svg {
    flex-shrink: 0;
    display: block;
}

.dark-mode .analysis-subtab {
    border-color: var(--border-light);
    background: var(--card);
    color: var(--text2);
}

.dark-mode .analysis-subtab:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.dark-mode .analysis-subtab.active {
    border-color: var(--accent);
    background: var(--accent);
    color: var(--text-inverse);
}

/* ================================================================
   23. MEMORIAL / SPECIAL TOOLS
   ================================================================ */
.memorial-quota svg { flex-shrink: 0; }

.memorial-upload-area { margin-bottom: 24px; }

.memorial-upload-box {
    border: 2px dashed var(--border-dark, #ddd);
    border-radius: var(--radius-xl, 16px);
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    background: var(--bg-secondary, #f5f5f5);
}

.memorial-upload-box:hover {
    border-color: var(--accent);
    background: var(--card-hover, #fafafa);
    transform: translateY(-2px);
}

.memorial-upload-box.dragover {
    border-color: var(--accent);
    background: var(--accent-soft, rgba(0,0,0,0.04));
}

.memorial-upload-box svg {
    opacity: 0.4;
    margin-bottom: 12px;
}

.memorial-upload-box p {
    font-size: var(--text-sm, 14px);
    color: var(--text2);
    margin-bottom: 4px;
}

.memorial-upload-box .hint {
    font-size: var(--text-xs, 12px);
    color: var(--text3);
}

.memorial-editor { display: none; }

.memorial-preview-wrap {
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.memorial-preview-cell {
    flex-shrink: 0;
    width: 360px;
    height: 270px;
    border-radius: var(--radius, 8px);
    overflow: hidden;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary, #f5f5f5);
}

.memorial-preview-cell img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.memorial-info-cell { flex: 1; }

.memorial-info-cell h3 {
    font-size: var(--text-lg, 18px);
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text);
}

.memorial-info-cell .tips {
    font-size: var(--text-xs, 12px);
    color: var(--text3);
    line-height: 1.8;
    margin-bottom: 16px;
}

.memorial-info-cell .tips li { margin-bottom: 4px; }

.memorial-btn-row {
    display: flex;
    gap: 10px;
    flex-wrap: nowrap;
    margin-top: 16px;
}

.btn-memorial-go {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 12px 32px;
    background: var(--accent);
    color: var(--text-inverse, #fff);
    border: none;
    border-radius: var(--radius, 8px);
    font-size: var(--text-sm, 14px);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-memorial-go:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(var(--accent-rgb, 0,0,0), 0.2);
}

.btn-memorial-go:disabled {
    opacity: 0.45;
    cursor: not-allowed;
    transform: none;
}

.btn-memorial-reset {
    padding: 12px 24px;
    background: transparent;
    border: 1px solid var(--border-dark, #ddd);
    border-radius: var(--radius, 8px);
    font-size: var(--text-sm, 14px);
    font-weight: 500;
    cursor: pointer;
    color: var(--text2);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-memorial-reset:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.memorial-loading {
    display: none;
    text-align: center;
    padding: 48px 20px;
}

.memorial-result {
    display: none;
    text-align: center;
    margin-top: 24px;
}

.memorial-result h2 {
    font-size: var(--text-xl, 20px);
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text);
}

.memorial-compare {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.memorial-compare-item {
    flex: 1;
    min-width: 200px;
    max-width: 400px;
}

.memorial-compare-label {
    font-size: var(--text-xs, 12px);
    color: var(--text3);
    margin-bottom: 6px;
    font-weight: 600;
}

.memorial-compare-img {
    border-radius: var(--radius, 8px);
    overflow: hidden;
    border: 1px solid var(--border);
    background: var(--bg-secondary, #f5f5f5);
}

.memorial-compare-img img {
    width: 100%;
    display: block;
}

.memorial-result-info {
    font-size: var(--text-xs, 12px);
    color: var(--text3);
    margin-top: 12px;
}

.memorial-result-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 16px;
    flex-wrap: wrap;
}

/* ================================================================
   24. ASPECT RATIO SELECTOR
   ================================================================ */
.ai-aspect-ratio-group {
    flex: 0 1 auto !important;
    min-width: 0 !important;
}

.aspect-ratio-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
}

/* Hide native radio */
.ar-card input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 1px;
    height: 1px;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    pointer-events: none;
}

.ar-card {
    position: relative;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 6px;
    padding: 7px 8px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius, 8px);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    background: var(--card);
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.ar-card:hover {
    border-color: var(--accent-border, var(--border-dark));
    background: var(--accent-soft, var(--bg-secondary));
    transform: translateY(-1px);
}

.ar-card:active {
    transform: scale(0.97);
}

/* Selected state */
.ar-card:has(input[type="radio"]:checked) {
    border-color: var(--accent);
    background: var(--accent-soft, var(--bg-secondary));
    box-shadow: 0 0 0 3px rgba(var(--accent-rgb, 0,0,0), 0.1);
}

.ar-card:has(input[type="radio"]:checked) .ar-text {
    color: var(--accent);
    font-weight: 600;
}

.ar-card:has(input[type="radio"]:checked) .ar-text span {
    color: var(--accent-light);
}

.ar-card:has(input[type="radio"]:checked) .ar-shape {
    border-color: var(--accent);
    background: var(--accent-soft, rgba(0,0,0,0.04));
}

/* Fallback sibling selector */
.ar-card input[type="radio"]:checked ~ .ar-shape {
    border-color: var(--accent);
    background: var(--accent-soft, rgba(0,0,0,0.04));
}

.ar-card input[type="radio"]:checked ~ .ar-text {
    color: var(--accent);
    font-weight: 600;
}

/* Shape preview */
.ar-shape {
    display: block;
    border: 2px solid var(--border-dark, #ddd);
    border-radius: var(--radius-sm, 4px);
    background: var(--bg-secondary, #f5f5f5);
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    flex-shrink: 0;
}

.ar-s1x1  { width: 20px; aspect-ratio: 1/1; }
.ar-s16x9 { width: 24px; aspect-ratio: 16/9; }
.ar-s9x16 { width: 16px; aspect-ratio: 9/16; }
.ar-s4x3  { width: 20px; aspect-ratio: 4/3; }
.ar-s3x4  { width: 16px; aspect-ratio: 3/4; }
.ar-s3x2  { width: 22px; aspect-ratio: 3/2; }
.ar-s2x3  { width: 16px; aspect-ratio: 2/3; }
.ar-auto  { width: 20px; aspect-ratio: 1/1; border-style: dashed; border-radius: 50%; }

.ar-text {
    font-size: var(--text-xs, 12px);
    font-weight: 500;
    color: var(--text2);
    text-align: left;
    line-height: 1.2;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    white-space: nowrap;
}

.ar-text span {
    display: block;
    font-size: 10px;
    font-weight: 400;
    color: var(--text3);
    margin-top: 1px;
}

/* ================================================================
   25. RETENTION NOTICE
   ================================================================ */
.ai-retention-notice {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    padding: 12px 16px;
    margin: 24px 0 16px;
    background: rgba(245, 158, 11, 0.06);
    border: 1px solid rgba(245, 158, 11, 0.15);
    border-radius: var(--radius, 8px);
    font-size: var(--text-xs, 12px);
    line-height: 1.6;
    color: var(--warning, #f59e0b);
}

.ai-retention-icon {
    flex-shrink: 0;
    margin-top: 2px;
}

.ai-retention-icon svg { display: block; }

/* ================================================================
   MOBILE: <768px
   ================================================================ */
@media (max-width: 768px) {
    .ai-image-container {
        padding: 0 12px;
    }

    .ai-prompt-area {
        padding: 20px;
    }

    .ai-ref-area {
        padding: 16px 20px;
    }

    .ai-result,
    .ai-result-area {
        padding: 20px;
    }

    .ai-style-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .ai-param-group {
        min-width: 100%;
    }

    .ai-aspect-ratio-group {
        flex: 1 1 100% !important;
        min-width: 100% !important;
    }

    .ai-param-group .radio-group {
        flex-wrap: wrap;
        gap: 4px;
    }

    .ai-param-group .radio-group label {
        font-size: 11px;
        padding: 6px 10px;
        min-height: 36px;
        display: inline-flex;
        align-items: center;
    }

    .analysis-subtabs {
        gap: 6px;
    }

    .analysis-subtab {
        padding: 8px 14px;
        font-size: var(--text-xs, 12px);
    }

    .ai-generate-btn,
    #generateBtn {
        width: 100%;
        padding: 14px 20px;
        font-size: var(--text-sm, 14px);
        justify-content: center;
        text-align: center;
    }

    .ai-actions {
        flex-wrap: wrap;
    }

    .ai-actions .btn-outline {
        white-space: nowrap;
        width: 100%;
        text-align: center;
        justify-content: center;
    }

    /* History page */
    .ai-history-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .ai-history-header .btn-outline {
        align-self: flex-start;
        font-size: var(--text-xs, 12px);
        padding: 6px 14px;
    }

    .ai-history-list .ai-history-item {
        padding: 12px;
        gap: 12px;
    }

    .ai-history-item .thumb {
        width: 64px;
        min-height: 64px;
    }

    .ai-history-item .thumb .no-img {
        font-size: 22px;
    }

    .ai-history-item .info .prompt-text {
        font-size: var(--text-xs, 12px);
    }

    .ai-history-item .info .meta {
        font-size: 11px;
    }

    .history-cat-tabs {
        gap: 0;
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .history-cat-tabs::-webkit-scrollbar { display: none; }

    .history-cat-tab {
        padding: 8px 12px;
        font-size: 11px;
        flex-shrink: 0;
    }

    /* Scenery */
    .scenery-preview-wrap {
        flex-direction: column;
    }

    .scenery-preview-cell {
        width: 100%;
        height: auto;
        max-height: 300px;
    }

    .scenery-compare {
        flex-direction: column;
    }

    .scenery-compare-item {
        max-width: 100%;
        min-width: 100%;
    }

    /* Compare area */
    .ai-compare-area {
        grid-template-columns: 1fr;
    }

    /* Memorial */
    .memorial-upload-box { padding: 32px 16px; }
    .memorial-preview-wrap { flex-direction: column; }
    .memorial-preview-cell { width: 100%; height: 200px; }
    .memorial-info-cell { width: 100%; }
    .memorial-compare-item { max-width: 100%; }
    .btn-memorial-go, .btn-memorial-reset {
        width: 100%;
        justify-content: center;
        text-align: center;
    }
}

/* ================================================================
   MOBILE: <640px
   ================================================================ */
@media (max-width: 640px) {
    .ai-history-list .ai-history-item {
        flex-wrap: wrap;
        padding: 12px;
        gap: 10px;
    }

    .ai-history-item .thumb {
        width: 100%;
        min-height: auto;
        height: 160px;
        border-radius: var(--radius, 8px);
        flex-shrink: 1;
    }

    .ai-history-item .thumb img {
        height: 100%;
        object-fit: cover;
    }

    .ai-history-item .thumb .no-img {
        font-size: 36px;
        opacity: 0.25;
    }

    .ai-history-item .info {
        flex: 1 1 100%;
        min-width: 100%;
        overflow: hidden;
    }

    .ai-history-item .info .prompt-text {
        font-size: var(--text-xs, 12px);
        -webkit-line-clamp: 3;
    }

    .ai-history-item .info .meta {
        font-size: 11px;
        margin-top: 6px;
    }

    .ai-history-item .actions {
        flex: 1 1 100%;
        justify-content: flex-start;
        gap: 8px;
        margin-top: 4px;
        flex-shrink: 1;
    }

    .ai-history-item .actions a,
    .ai-history-item .actions .btn-check-status {
        font-size: var(--text-xs, 12px);
        padding: 6px 12px;
        flex: 1;
        text-align: center;
        justify-content: center;
    }
}

/* ================================================================
   MOBILE: <480px
   ================================================================ */
@media (max-width: 480px) {
    .ai-prompt-area {
        padding: 20px 16px;
        border-radius: var(--radius-lg, 12px);
    }

    .ai-prompt-area textarea {
        font-size: 16px;
        min-height: 120px;
        padding: 14px 16px;
    }

    .ai-prompt-area .hint {
        margin-top: 10px;
    }

    .ai-ref-area {
        padding: 12px 16px;
        border-radius: var(--radius, 8px);
    }

    .ref-upload-btn {
        width: 100px;
        height: 80px;
    }

    .ref-preview-item {
        width: 80px;
        height: 80px;
    }

    .ai-style-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .analysis-subtabs {
        gap: 4px;
    }

    .analysis-subtab {
        padding: 6px 10px;
        font-size: 11px;
        gap: 4px;
    }

    .ai-params {
        gap: 8px;
    }

    .ai-param-group {
        min-width: 100%;
    }

    .ai-aspect-ratio-group {
        flex: 1 1 100% !important;
        min-width: 100% !important;
    }

    .ai-param-group .radio-group label {
        padding: 8px 12px;
        font-size: var(--text-xs, 12px);
        min-height: 40px;
    }

    .ai-result,
    .ai-result-area {
        padding: 16px;
        border-radius: var(--radius-lg, 12px);
    }

    .ai-result .result-actions {
        flex-direction: column;
        gap: 6px;
    }

    .ai-result .result-actions .btn {
        width: 100%;
        text-align: center;
    }

    .ai-pagination a,
    .ai-pagination span {
        padding: 4px 10px;
        font-size: 11px;
    }

    .scenery-preview-cell {
        max-height: 220px;
    }

    .scenery-info-cell h3 {
        font-size: var(--text-base, 16px);
    }

    .btn-scenery-go,
    .btn-scenery-reset {
        width: 100%;
        text-align: center;
    }

    .scenery-result-actions .btn {
        width: 100%;
        text-align: center;
    }

    .ref-upload-btn {
        width: 100%;
        height: 90px;
        border-radius: var(--radius-lg, 12px);
        font-size: var(--text-xs, 12px);
    }

    /* History */
    .ai-history-header h2 {
        font-size: var(--text-lg, 18px);
    }

    .ai-history-header p {
        font-size: var(--text-xs, 12px);
    }

    .ai-history-list .ai-history-item {
        flex-wrap: wrap;
        padding: 12px;
        gap: 10px;
    }

    .ai-history-item .thumb {
        width: 100%;
        min-height: auto;
        height: 160px;
        border-radius: var(--radius, 8px);
    }

    .ai-history-item .thumb img {
        height: 100%;
        object-fit: cover;
    }

    .ai-history-item .thumb .no-img {
        font-size: 36px;
        opacity: 0.25;
    }

    .ai-history-item .info {
        flex: 1 1 100%;
        min-width: 100%;
    }

    .ai-history-item .info .prompt-text {
        font-size: var(--text-xs, 12px);
        -webkit-line-clamp: 3;
    }

    .ai-history-item .info .meta {
        font-size: 11px;
        margin-top: 6px;
    }

    .ai-history-item .actions {
        flex: 1 1 100%;
        justify-content: flex-start;
        gap: 8px;
        margin-top: 4px;
    }

    .ai-history-item .actions a,
    .ai-history-item .actions .btn-check-status {
        font-size: var(--text-xs, 12px);
        padding: 6px 12px;
        flex: 1;
        text-align: center;
        justify-content: center;
    }

    .history-cat-tabs {
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        border-bottom-width: 1px;
    }

    .history-cat-tab {
        font-size: 11px;
        padding: 8px 14px;
        flex-shrink: 0;
    }

    .history-cat-count {
        font-size: 10px;
        padding: 1px 5px;
    }

    .history-badge {
        font-size: 10px;
        padding: 1px 6px;
    }

    /* Stage loading mobile */
    .ai-stage-loading { padding: 32px 16px 24px; }
    .ai-stage-spinner-wrap { width: 56px; height: 56px; margin-bottom: 20px; }
    .ai-stage-spinner-ring { width: 56px; height: 56px; border-width: 3px; }
    .ai-stage-spinner-icon { font-size: 22px; }
    .ai-stage-main-text { font-size: var(--text-sm, 14px); }
    .ai-stage-sub-text { font-size: 11px; }

    /* Memorial */
    .memorial-upload-box { padding: 24px 12px; border-radius: var(--radius, 8px); }
    .memorial-upload-box p { font-size: var(--text-xs, 12px); }
    .memorial-preview-cell { height: 160px; }
    .memorial-info-cell h3 { font-size: var(--text-base, 16px); }
    .memorial-info-cell .tips { font-size: 11px; }
    .memorial-compare-label { font-size: 11px; }
    .memorial-result h2 { font-size: var(--text-lg, 18px); }
    .memorial-btn-row { flex-direction: column; }
}

/* ================================================================
   MOBILE: <360px
   ================================================================ */
@media (max-width: 360px) {
    .ai-prompt-area {
        padding: 16px 12px;
    }

    .ai-prompt-area textarea {
        font-size: 16px;
        min-height: 100px;
        padding: 12px 14px;
    }

    .ai-ref-area {
        padding: 10px 12px;
    }

    .ref-upload-btn {
        width: 80px;
        height: 70px;
        font-size: 11px;
    }

    .ref-preview-item {
        width: 64px;
        height: 64px;
    }

    .ai-result,
    .ai-result-area {
        padding: 12px;
    }

    .ai-result .result-images {
        gap: 8px;
    }

    .ai-empty {
        padding: 40px 12px;
    }

    .ai-history-list .ai-history-item {
        padding: 10px;
        gap: 8px;
    }

    .ai-history-list .ai-history-item .thumb {
        height: 130px;
    }

    .ai-history-item .info .prompt-text {
        font-size: 11px;
        -webkit-line-clamp: 3;
    }

    .ai-history-item .info .meta {
        font-size: 10px;
    }

    .ai-history-item .meta .tag {
        font-size: 10px;
        padding: 1px 4px;
    }

    .history-cat-tab {
        font-size: 10px;
        padding: 7px 10px;
    }

    .memorial-upload-box { padding: 20px 10px; }
    .memorial-preview-cell { height: 130px; }
    .memorial-info-cell h3 { font-size: var(--text-sm, 14px); }
}

/* ================================================================
   ASPECT RATIO RESPONSIVE
   ================================================================ */
@media (max-width: 900px) {
    .aspect-ratio-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .ar-card { padding: 6px 7px; }
    .ar-card:has(input[type="radio"]:checked) { padding: 6px 7px; }
    .ar-text { font-size: 11px; }
    .ar-text span { font-size: 9px; }
    .ar-s1x1  { width: 18px; }
    .ar-s16x9 { width: 22px; }
    .ar-s9x16 { width: 14px; }
    .ar-s4x3  { width: 18px; }
    .ar-s3x4  { width: 14px; }
    .ar-s3x2  { width: 20px; }
    .ar-s2x3  { width: 14px; }
    .ar-auto  { width: 18px; }
}

@media (max-width: 600px) {
    .aspect-ratio-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 4px;
    }

    .ar-card {
        padding: 6px 4px;
        border-radius: var(--radius, 8px);
        justify-content: center;
        gap: 4px;
    }

    .ar-card:has(input[type="radio"]:checked) { padding: 6px 4px; }
    .ar-shape { border-width: 1.5px; }
    .ar-s1x1  { width: 16px; }
    .ar-s16x9 { width: 18px; }
    .ar-s9x16 { width: 12px; }
    .ar-s4x3  { width: 15px; }
    .ar-s3x4  { width: 12px; }
    .ar-s3x2  { width: 16px; }
    .ar-s2x3  { width: 12px; }
    .ar-auto  { width: 16px; }
    .ar-text { font-size: 10px; }
    .ar-text span { font-size: 8px; }
}

@media (max-width: 380px) {
    .aspect-ratio-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 3px;
    }

    .ar-card {
        padding: 5px 3px;
        border-radius: 7px;
        justify-content: center;
        gap: 3px;
    }

    .ar-card:has(input[type="radio"]:checked) { padding: 5px 3px; }
    .ar-s1x1  { width: 13px; }
    .ar-s16x9 { width: 15px; }
    .ar-s9x16 { width: 10px; }
    .ar-s4x3  { width: 13px; }
    .ar-s3x4  { width: 10px; }
    .ar-s3x2  { width: 14px; }
    .ar-s2x3  { width: 10px; }
    .ar-auto  { width: 13px; }
}

/* ================================================================
   REDUCED MOTION
   ================================================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .ai-image-container {
        animation: none;
    }

    .ai-result-area.is-visible,
    .ai-result.is-visible {
        animation: none;
    }

    .ai-prompt-area:hover,
    .ai-style-card:hover,
    .ai-upload-area:hover,
    .ai-generate-btn:hover,
    #generateBtn:hover,
    .ai-result-image:hover,
    .ai-result-action-btn:hover,
    .ai-compare-item:hover,
    .ai-history-item:hover,
    .ref-preview-item:hover,
    .ref-upload-btn:hover {
        transform: none;
    }
}