/* --- 全局样式和变量 --- */
:root {
    /* --- Light Mode (Default) --- */
    --bg-color-light: #f5f5f7;
    --panel-bg-color-light: rgba(255, 255, 255, 0.8);
    --text-color-light: #1d1d1f;
    --text-color-secondary-light: #6e6e73;
    --border-color-light: rgba(0, 0, 0, 0.1);
    --accent-color-light: #007aff;

    /* --- Dark Mode --- */
    --bg-color-dark: #121212;
    --panel-bg-color-dark: rgba(29, 29, 31, 0.75);
    --text-color-dark: #f5f5f7;
    --text-color-secondary-dark: #86868b;
    --border-color-dark: rgba(255, 255, 255, 0.15);
    --accent-color-dark: #0a84ff;

    /* --- Universal --- */
    --bg-color: var(--bg-color-light);
    --panel-bg-color: var(--panel-bg-color-light);
    --text-color: var(--text-color-light);
    --text-color-secondary: var(--text-color-secondary-light);
    --border-color: var(--border-color-light);
    --accent-color: var(--accent-color-light);
    --action-color-primary: #e74c3c;
    --shadow-soft: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-strong: 0 8px 30px rgba(0, 0, 0, 0.12);
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --border-radius: 16px;
    --border-radius-small: 10px;
    --transition-fast: all 0.25s cubic-bezier(0.68, -0.55, 0.27, 1.55);
}

html[data-theme="dark"] {
    --bg-color: var(--bg-color-dark);
    --panel-bg-color: var(--panel-bg-color-dark);
    --text-color: var(--text-color-dark);
    --text-color-secondary: var(--text-color-secondary-dark);
    --border-color: var(--border-color-dark);
    --accent-color: var(--accent-color-dark);
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    margin: 0;
    padding: 0; /* JS will set padding-top */
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

/* --- 头部 --- */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0;
    padding: 10px 25px;
    box-sizing: border-box;
    z-index: 1000; /* 增加层级确保始终在最顶层 */
    background-color: var(--panel-bg-color);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-soft);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
}

/* 滚动时增强阴影效果 */
header.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

/* 隐藏导航栏时的效果（向下滚动时） */
header.header-hidden {
    transform: translateY(-100%);
}

header h1 {
    font-size: 1.5em;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
}

.header-icons {
    display: flex;
    gap: 8px;
}

.icon-button {
    background: transparent;
    border: none;
    border-radius: var(--border-radius-small);
    width: 38px;
    height: 38px;
    font-size: 1.2em;
    /* Will be replaced by SVG size */
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
    color: var(--text-color-secondary);
}

.icon-button:hover {
    background-color: var(--border-color);
    color: var(--text-color);
}

/* --- 布局 --- */
.app-container {
    display: grid;
    grid-template-columns: minmax(320px, 350px) 1fr minmax(320px, 450px);
    gap: 20px;
    max-width: 1500px;
    margin: 0 auto;
    align-items: stretch;
    padding: 25px;
    padding-top: 100px; /* 为固定的导航栏预留空间 */
}

/* editor-mode no longer expands the grid; keeping default layout */

/* --- 通用面板样式 --- */
.panel-style {
    background-color: var(--panel-bg-color);
    backdrop-filter: saturate(180%) blur(15px);
    -webkit-backdrop-filter: saturate(180%) blur(15px);
    padding: 20px;
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
    min-height: 600px;
    transition: background-color 0.3s, border-color 0.3s, box-shadow 0.3s;
}

h2,
h3 {
    margin-top: 0;
    margin-bottom: 20px;
    font-weight: 600;
    color: var(--text-color);
}

/* --- 第一栏：主操作区 --- */

.main-controls .tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    background-color: rgba(120, 120, 128, 0.12);
    padding: 4px;
    border-radius: var(--border-radius-small);
}

.main-controls .tabs button {
    flex-grow: 1;
    background-color: transparent;
    color: var(--text-color);
    border: none;
    padding: 8px 12px;
    font-size: 0.95em;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.main-controls .tabs button.active {
    background-color: var(--panel-bg-color-light);
    color: var(--text-color-light);
    font-weight: 600;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

html[data-theme="dark"] .main-controls .tabs button.active {
    background-color: #555;
    color: var(--text-color-dark);
}

.main-controls .panel {
    display: none;
    flex-direction: column;
    flex-grow: 1;
}

.main-controls .panel.active {
    display: flex;
}

.main-controls textarea {
    flex-grow: 1;
    resize: vertical;
    min-height: 180px;
    border-radius: var(--border-radius-small);
    border: 1px solid var(--border-color);
    padding: 12px;
    background-color: rgba(120, 120, 128, 0.12);
    color: var(--text-color);
    font-family: inherit;
    font-size: 1em;
}

.main-controls textarea:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.3);
    outline: none;
}

/* --- 文件上传区 --- */
.file-upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius-small);
    padding: 20px;
    text-align: center;
    cursor: pointer;
    background-color: rgba(120, 120, 128, 0.12);
    color: var(--text-color-secondary);
    margin-bottom: 20px;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.file-upload-area.dragging {
    border-color: var(--accent-color);
    background-color: rgba(0, 122, 255, 0.1);
}

.upload-thumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.upload-thumb-item {
    position: relative;
    width: 100px;
    height: 100px;
    border-radius: var(--border-radius-small);
    overflow: hidden;
}

.upload-thumb-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.remove-thumb {
    position: absolute;
    top: 5px;
    right: 5px;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    border: none;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    font-size: 12px;
    line-height: 20px;
    text-align: center;
    cursor: pointer;
}

/* --- 比例选择器样式 --- */
.aspect-ratio-selector {
    margin: 20px 0;
}

.aspect-ratio-selector h3 {
    margin-bottom: 15px;
    font-size: 1em;
    font-weight: 600;
    color: var(--text-color);
}

.ratio-buttons {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 10px;
}

.ratio-button {
    background: rgba(120, 120, 128, 0.12);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 12px 8px;
    border-radius: var(--border-radius-small);
    font-size: 0.9em;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    position: relative;
    min-height: 60px;
}

.ratio-button:hover {
    background: rgba(120, 120, 128, 0.2);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.ratio-button.selected {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    box-shadow: 0 2px 12px rgba(0, 122, 255, 0.3);
}

.ratio-button.selected:hover {
    background: var(--accent-color);
    filter: brightness(1.1);
}

.ratio-button .ratio-label {
    font-size: 0.85em;
    font-weight: 600;
}

.ratio-button .ratio-description {
    font-size: 0.7em;
    opacity: 0.8;
    text-align: center;
}

.ratio-button.loading {
    opacity: 0.6;
    cursor: not-allowed;
}

.ratio-button.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.generate-button {
    background: var(--accent-color);
    color: white;
    font-size: 1.1em;
    font-weight: 600;
    margin-top: auto;
    padding: 15px;
    border: none;
    border-radius: var(--border-radius-small);
    transition: var(--transition-fast);
}

.generate-button:hover {
    filter: brightness(1.1);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 122, 255, 0.2);
}

/* --- 第二栏：灵感画廊 --- */
/* Constraining the gallery width and centering it within its flexible grid track. */
.inspiration-gallery {
    max-width: 600px;
    justify-self: center;
    width: 100%;
}

.gallery-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.gallery-search input[type=search] {
    width: 240px;
    max-width: 40vw;
    padding: 8px 10px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: rgba(120,120,128,0.08);
    color: var(--text-color);
    outline: none;
}
@media (max-width: 768px){
  .gallery-search input[type=search]{ width: 160px; }
}

#prompt-display-area {
    background-color: rgba(120, 120, 128, 0.12);
    color: var(--text-color-secondary);
    border-radius: var(--border-radius-small);
    padding: 15px;
    margin: 20px 0;
    height: 120px;
    overflow-y: auto;
    font-size: 0.9em;
}

.carousel-container {
    display: flex;
    align-items: center;
    gap: 15px;
}

.carousel-arrow {
    background-color: rgba(120, 120, 128, 0.16);
    color: var(--text-color);
    border: none;
    border-radius: 50%;
    width: 36px;
    height: 36px;
    cursor: pointer;
    flex-shrink: 0;
    transition: background-color 0.2s;
}

.carousel-arrow:hover {
    background-color: rgba(120, 120, 128, 0.25);
}

.carousel-arrow:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

#thumbnail-slider {
    flex-grow: 1;
    height: 280px;
    overflow: hidden;
}

#thumbnail-track {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.thumbnail-item {
    flex-shrink: 0;
    border-radius: var(--border-radius-small);
    overflow: hidden;
    cursor: pointer;
    border: 2px solid transparent;
    transition: border-color 0.3s, transform 0.3s;
}

.thumbnail-item:hover {
    transform: scale(1.05);
}

.thumbnail-item.active {
    border-color: var(--accent-color);
}

.thumbnail-item img {
    width: 85px;
    height: 85px;
    object-fit: cover;
    display: block;
}

#prompt-description-area {
    text-align: center;
    margin: 20px 0;
}

#prompt-description-area h4 {
    margin: 0 0 5px 0;
    font-weight: 600;
    color: var(--text-color);
}

#prompt-description-area p {
    margin: 0;
    color: var(--text-color-secondary);
    font-size: 0.9em;
}

.template-actions {
    display: flex;
    gap: 10px;
    margin-top: 20px;
    align-items: center;
}

.template-actions .primary-button {
    flex-grow: 1;
    background-color: var(--accent-color);
    color: white;
    font-weight: 500;
    border: none;
    padding: 12px;
    border-radius: var(--border-radius-small);
    transition: filter 0.2s;
}

.template-actions .primary-button:hover {
    filter: brightness(1.1);
}

.template-actions .icon-button {
    flex-shrink: 0;
}

/* --- Editor (图编辑) --- */
.editor-tools { display: flex; flex-direction: column; gap: 8px; margin-bottom: 10px; }
.editor-tools .tool-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.editor-tools .tool-group { display: inline-flex; gap: 6px; background: rgba(120, 120, 128, 0.10); padding: 4px; border-radius: 999px; border: 1px solid var(--border-color); }
.editor-tools .tool-button { border: 1px solid transparent; background: transparent; color: var(--text-color); padding: 6px 12px; border-radius: 999px; cursor: pointer; font-size: 0.85em; transition: background .2s, color .2s; }
.editor-tools .tool-button:hover { background: rgba(120,120,128,0.12); }
.editor-tools .tool-button.active { background: var(--accent-color); color: #fff; }
.editor-tools .btn-like { border: 1px dashed var(--border-color); background: rgba(120,120,128,0.05); padding: 6px 10px; border-radius: 8px; cursor: pointer; font-size: 0.85em; }
.editor-tools .color-label { display: inline-flex; align-items: center; gap: 6px; font-size: 0.85em; color: var(--text-color-secondary); }
.editor-tools input[type="text"] { min-width: 160px; max-width: 240px; width: 100%; padding: 6px 8px; border: 1px solid var(--border-color); border-radius: 6px; background: rgba(120,120,128,0.08); color: var(--text-color); }
.tool-actions { display:flex; align-items:center; gap:8px; flex-wrap: wrap; }
.chip-btn { border: 1px solid var(--border-color); background: rgba(120,120,128,0.08); color: var(--text-color); padding: 6px 10px; border-radius: 999px; cursor: pointer; font-size: 0.85em; transition: background .2s, transform .1s; }
.chip-btn:hover { background: rgba(120,120,128,0.16); }
.chip-btn:active { transform: scale(0.98); }
.chip-btn.danger { border-color: #dc3545; color: #dc3545; background: rgba(220,53,69,0.08); }
.chip-btn.danger:hover { background: rgba(220,53,69,0.16); }
.chip-btn.active { background: var(--accent-color); color: #fff; border-color: var(--accent-color); }
.primary-button { background: var(--accent-color); color: #fff; border: none; padding: 8px 14px; border-radius: 8px; cursor: pointer; }
.primary-button:hover { filter: brightness(1.05); }
.secondary-button { border: 1px solid var(--border-color); background: rgba(120,120,128,0.08); color: var(--text-color); padding: 6px 10px; border-radius: 8px; cursor: pointer; }
.secondary-button:hover { background: rgba(120,120,128,0.16); }

.editor-body { display: flex; flex-direction: column; gap: 12px; align-items: stretch; }
.canvas-wrap { width: 100%; }
.editor-ref-wrap { width: 100%; }
#editor-canvas { width: 100%; height: auto; background: rgba(120,120,128,0.12); border: 1px dashed var(--border-color); border-radius: var(--border-radius-small); display: block; }
.editor-ref-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)); gap: 10px; }
.editor-ref-list .upload-thumb-item { width: 100%; height: 90px; }
.editor-ref-list .upload-thumb-item img { object-fit: cover; }

/* no extra breakpoint needed; editor already stacked vertically */

/* --- 第三栏：结果区 --- */

#image-display-container {
    position: relative;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

#image-display {
    flex-grow: 1;
    width: 100%;
    background-color: rgba(120, 120, 128, 0.12);
    border-radius: var(--border-radius-small);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-color-secondary);
    border: 1px solid var(--border-color);
    min-height: 360px;
    overflow: hidden;
    position: relative;
}

/* Leave space for the floating action bar to avoid covering the image */
#image-display {
    margin-top: 56px; /* space under the top-right action buttons */
}

/* Optional: nicer cursor for zoom/pan in lightbox */
#lightbox-image.zoomable { cursor: grab; user-select: none; }
#lightbox-image.zoomable:active { cursor: grabbing; }

#image-display img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    position: absolute;
    transition: opacity 0.5s ease-in-out, transform 0.2s ease;
    opacity: 0;
    cursor: pointer;
}

#image-display img:hover {
    transform: scale(1.02);
}

#image-display img.active {
    opacity: 1;
}

#image-actions {
    position: absolute;
    top: 15px;
    right: 15px;
    display: flex;
    gap: 10px;
    z-index: 10;
    background-color: var(--panel-bg-color);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 5px;
    border-radius: var(--border-radius-small);
    border: 1px solid var(--border-color);
}

/* --- 悬浮预览样式 --- */
.thumbnail-previewer {
    position: fixed;
    visibility: hidden;
    opacity: 0;
    z-index: 1001;
    pointer-events: none;
    transition: opacity 0.2s;
    border: 3px solid white;
    border-radius: var(--border-radius);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.25);
    width: 400px;
    height: 400px;
}

.thumbnail-previewer.visible {
    visibility: visible;
    opacity: 1;
}

.thumbnail-previewer img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: calc(var(--border-radius) - 3px);
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
}

.thumbnail-previewer img.active-preview {
    opacity: 1;
}

/* --- 模态框样式 --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.3);
    backdrop-filter: saturate(180%) blur(5px);
    -webkit-backdrop-filter: saturate(180%) blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.modal-overlay:not(.hidden) {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--panel-bg-color);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-strong);
    border: 1px solid var(--border-color);
    width: 90%;
    max-width: 500px;
    transform: scale(0.95);
    transition: transform 0.3s, background-color 0.3s, border-color 0.3s;
}

.modal-overlay:not(.hidden) .modal-content {
    transform: scale(1);
}

.modal-content.modal-lg {
    max-width: 90vw;
    width: 1200px;
    height: 80vh;
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-header-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    color: var(--text-color);
}

.modal-header .icon-button {
    background: transparent;
    border: none;
    font-size: 1.8em;
    color: var(--text-color-secondary);
}

.modal-body {
    flex-grow: 1;
    overflow-y: auto;
}

.modal-body label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    font-size: 0.9em;
    color: var(--text-color);
}

.modal-body input {
    margin-bottom: 15px;
    width: 100%;
    box-sizing: border-box;
    padding: 12px;
    border-radius: var(--border-radius-small);
    border: 1px solid var(--border-color);
    background-color: rgba(120, 120, 128, 0.12);
    color: var(--text-color);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 15px;
    margin-top: 30px;
}

.modal-footer .primary-button {
    width: auto;
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: var(--border-radius-small);
    font-weight: 500;
}

.modal-footer .secondary-button {
    background-color: rgba(120, 120, 128, 0.2);
    color: var(--text-color);
    border: none;
    padding: 10px 20px;
    border-radius: var(--border-radius-small);
    cursor: pointer;
    font-weight: 500;
}

#favorites-grid,
#history-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    justify-content: center; /* 居中对齐网格项 */
}

/* 大屏幕设备 (≥1200px) - 5列 */
@media (min-width: 1200px) {
    #favorites-grid,
    #history-grid {
        grid-template-columns: repeat(5, 1fr);
        max-width: 1200px;
        margin: 0 auto;
    }
}

/* 中等屏幕设备 (≥992px) - 4列 */
@media (min-width: 992px) and (max-width: 1199px) {
    #favorites-grid,
    #history-grid {
        grid-template-columns: repeat(4, 1fr);
        max-width: 1000px;
        margin: 0 auto;
    }
}

/* 小屏幕设备 (≥768px) - 3列 */
@media (min-width: 768px) and (max-width: 991px) {
    #favorites-grid,
    #history-grid {
        grid-template-columns: repeat(3, 1fr);
        max-width: 750px;
        margin: 0 auto;
    }
}

/* 超小屏幕设备 (<768px) - 2列 */
@media (max-width: 767px) {
    #favorites-grid,
    #history-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
}

.grid-item {
    background-color: var(--panel-bg-color);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-soft);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    display: flex;
    flex-direction: column;
    height: 320px; /* 固定高度确保一致性 */
}

.grid-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-strong);
}

.grid-item-image-container {
    width: 100%;
    height: 200px; /* 固定图片容器高度 */
    overflow: hidden;
    position: relative;
    background-color: rgba(120, 120, 128, 0.1);
}

.grid-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.grid-item:hover img {
    transform: scale(1.05);
}

.grid-item-content {
    padding: 12px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.grid-item p {
    font-size: 0.85em;
    color: var(--text-color-secondary);
    margin: 0;
    line-height: 1.4;
    overflow-y: auto; /* 使用垂直滚动条 */
    text-align: left;
    max-height: 80px; /* 设置最大高度，超出则显示滚动条 */
    padding-right: 5px; /* 为滚动条留出空间 */
}

/* 美化滚动条样式 */
.grid-item p::-webkit-scrollbar {
    width: 4px;
}

.grid-item p::-webkit-scrollbar-track {
    background: rgba(120, 120, 128, 0.1);
    border-radius: 2px;
}

.grid-item p::-webkit-scrollbar-thumb {
    background: rgba(120, 120, 128, 0.3);
    border-radius: 2px;
}

.grid-item p::-webkit-scrollbar-thumb:hover {
    background: rgba(120, 120, 128, 0.5);
}

.hidden {
    display: none !important;
}

/* --- 响应式设计 --- */
@media (max-width: 1200px) {
    .app-container {
        grid-template-columns: 1fr;
        gap: 15px;
        padding: 0 15px;
    }

    .panel-style {
        min-height: auto;
        padding: 15px;
    }

    header {
        margin-bottom: 20px;
        padding: 8px 15px;
    }

    header h1 {
        font-size: 1.3em;
    }

    .header-icons {
        gap: 6px;
    }

    .icon-button {
        width: 34px;
        height: 34px;
    }
}

@media (max-width: 768px) {
    body {
        padding: 15px;
    }

    .app-container {
        gap: 10px;
        padding: 0 5px;
    }

    .panel-style {
        padding: 12px;
        border-radius: 12px;
    }

    header {
        padding: 6px 12px;
        border-radius: 12px;
    }

    header h1 {
        font-size: 1.2em;
    }

    .main-controls textarea {
        min-height: 120px;
        font-size: 0.9em;
    }

    .carousel-container {
        gap: 8px;
    }

    .carousel-arrow {
        width: 30px;
        height: 30px;
        font-size: 0.9em;
    }

    .thumbnail-item img {
        width: 70px;
        height: 70px;
    }

    #prompt-display-area {
        height: 100px;
        font-size: 0.85em;
    }

    .template-actions {
        flex-direction: column;
        gap: 8px;
    }

    .template-actions .primary-button {
        width: 100%;
    }

    #image-display {
        min-height: 250px;
    }

    .modal-content {
        width: 95%;
        padding: 20px;
    }

    .modal-content.modal-lg {
        width: 95vw;
        height: 85vh;
    }

    /* 移动端已经由上面的媒体查询处理，这里不需要覆盖 */
    
    .grid-item {
        height: 280px; /* 移动端稍微减小高度 */
    }
    
    .grid-item-image-container {
        height: 160px; /* 移动端减小图片容器高度 */
    }
    /* 比例选择器移动端优化 */
    .ratio-buttons {
        grid-template-columns: repeat(2, 1fr);
        gap: 6px;
    }

    .ratio-button {
        padding: 8px 6px;
        min-height: 50px;
        font-size: 0.8em;
    }

    .ratio-button .ratio-label {
        font-size: 0.8em;
    }

    .ratio-button .ratio-description {
        font-size: 0.65em;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    .app-container {
        gap: 8px;
        padding: 0;
    }

    .panel-style {
        padding: 10px;
        border-radius: 10px;
    }

    header {
        padding: 5px 10px;
        border-radius: 10px;
        margin-bottom: 15px;
    }

    header h1 {
        font-size: 1.1em;
    }

    .header-icons {
        gap: 4px;
    }

    .icon-button {
        width: 30px;
        height: 30px;
    }

    .main-controls .tabs {
        gap: 5px;
        padding: 3px;
    }

    .main-controls .tabs button {
        padding: 6px 8px;
        font-size: 0.85em;
    }

    .main-controls textarea {
        min-height: 100px;
        padding: 8px;
        font-size: 0.85em;
    }

    .generate-button {
        padding: 12px;
        font-size: 1em;
    }

    .file-upload-area {
        padding: 15px;
    }

    .upload-thumb-item {
        width: 80px;
        height: 80px;
    }

    /* 超小屏幕比例选择器优化 */
    .ratio-buttons {
        grid-template-columns: 1fr 1fr;
        gap: 4px;
    }

    .ratio-button {
        padding: 6px 4px;
        min-height: 40px;
        font-size: 0.75em;
    }

    .ratio-button .ratio-label {
        font-size: 0.75em;
    }

    .ratio-button .ratio-description {
        font-size: 0.6em;
    }

    .aspect-ratio-selector h3 {
        font-size: 0.9em;
        margin-bottom: 10px;
    }

    .upload-thumb-item {
        width: 80px;
        height: 80px;
    }

    #thumbnail-track {
        gap: 6px;
    }

    .thumbnail-item img {
        width: 60px;
        height: 60px;
    }

    #prompt-display-area {
        height: 80px;
        padding: 10px;
        font-size: 0.8em;
    }

    #image-display {
        min-height: 200px;
    }

    .modal-content {
        width: 98%;
        padding: 15px;
    }

    .modal-header h2 {
        font-size: 1.2em;
    }

    /* 超小屏幕设备已经由上面的媒体查询处理，这里不需要覆盖 */
    
    .grid-item {
        height: 260px; /* 超小屏幕进一步减小高度 */
    }
    
    .grid-item-image-container {
        height: 140px; /* 超小屏幕进一步减小图片容器高度 */
    }
    
    .grid-item p {
        padding: 8px;
        font-size: 0.8em;
    }
}

/* --- Icon States --- */
.icon-button.favorited .heart-icon {
    fill: #ff453a;
    stroke: #ff453a;
}

/* --- 移动端触摸优化 --- */
@media (hover: none) and (pointer: coarse) {

    .icon-button,
    .thumbnail-item,
    .grid-item img {
        -webkit-tap-highlight-color: transparent;
    }

    .icon-button:active,
    .thumbnail-item:active {
        transform: scale(0.95);
        transition: transform 0.1s;
    }

    .generate-button:active {
        transform: translateY(1px);
    }

    /* 移动端预览器禁用 */
    .thumbnail-previewer {
        display: none !important;
    }
}

/* --- 横屏模式优化 --- */
@media (max-width: 768px) and (orientation: landscape) {
    .app-container {
        grid-template-columns: 1fr 1fr;
        gap: 15px;
    }

    .inspiration-gallery {
        grid-column: 1 / -1;
        order: -1;
    }

    .panel-style {
        min-height: auto;
    }

    #image-display {
        min-height: 200px;
    }
}

/* --- 加载动画和错误状态 --- */
.loading-spinner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
    height: 100%;
    color: var(--text-color-secondary);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.error-message {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 15px;
    height: 100%;
    text-align: center;
    color: var(--text-color-secondary);
}

.error-message p {
    margin: 0;
    font-size: 1em;
}

.retry-btn {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: var(--border-radius-small);
    cursor: pointer;
    font-size: 0.9em;
    transition: filter 0.2s;
}

.retry-btn:hover {
    filter: brightness(1.1);
}

/* --- 改进的焦点状态 --- */
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* --- 改进的选择状态 --- */
::selection {
    background-color: var(--accent-color);
    color: white;
}

/* --- 网格操作按钮 --- */
.grid-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 10px;
    background: rgba(120, 120, 128, 0.1);
    border-radius: 8px;
}

.clear-all-btn {
    background: #dc3545;
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.85em;
    cursor: pointer;
    transition: background-color 0.2s;
}

.clear-all-btn:hover {
    background: #c82333;
}

/* --- 删除按钮 --- */
.delete-item-btn {
    position: absolute;
    top: 5px;
    right: 5px;
    background: rgba(220, 53, 69, 0.9);
    color: white;
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    display: none;
    z-index: 10;
    transition: all 0.2s;
}

.delete-item-btn:hover {
    background: rgba(220, 53, 69, 1);
    transform: scale(1.1);
}

.grid-item:hover .delete-item-btn {
    display: block;
}

/* --- 网格项目悬停效果 --- */
.grid-item {
    transition: transform 0.2s, box-shadow 0.2s;
}

.grid-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* --- 空状态样式 --- */
.empty-state {
    text-align: center;
    color: var(--text-color-secondary);
    padding: 40px;
}

.empty-state .icon {
    font-size: 3em;
    margin-bottom: 10px;
    opacity: 0.5;
}

/* --- 时间信息样式 --- */
.time-info {
    font-size: 0.75em;
    color: var(--text-color-secondary);
    padding: 5px 10px;
    background: rgba(120, 120, 128, 0.05);
    border-top: 1px solid var(--border-color);
}

/* --- 预设按钮 --- */
.preset-btn {
    background: rgba(120, 120, 128, 0.2);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8em;
    cursor: pointer;
    transition: all 0.2s;
}

.preset-btn:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

/* --- 移动端优化 --- */
@media (max-width: 768px) {
    .grid-actions {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .delete-item-btn {
        display: block;
        opacity: 0.7;
    }
    
    .grid-item:hover .delete-item-btn {
        opacity: 1;
    }
    
    .preset-btn {
        flex: 1;
        min-width: 80px;
    }
}

/* --- 灯箱 (Lightbox) 模态框 --- */
#lightbox-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.lightbox-content {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 90%;
    max-width: 600px;
    height: auto;
    padding: 20px;
    background-color: var(--panel-bg-color);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-strong);
}

#lightbox-image {
    max-width: 100%;
    max-height: 75vh;
    object-fit: contain;
    border-radius: var(--border-radius-small);
    transform-origin: 0 0;
    will-change: transform;
}

.lightbox-close-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(120, 120, 128, 0.2);
    color: var(--text-color);
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    font-size: 20px;
    line-height: 32px;
    text-align: center;
    cursor: pointer;
    z-index: 2010;
    transition: background-color 0.2s;
}

.lightbox-close-btn:hover {
    background: rgba(120, 120, 128, 0.4);
}

.lightbox-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(40, 40, 40, 0.5);
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    font-size: 20px;
    cursor: pointer;
    z-index: 2010;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s;
}

.lightbox-nav-btn.prev {
    left: -50px;
}

.lightbox-nav-btn.next {
    right: -50px;
}

.lightbox-nav-btn:hover {
    background: rgba(0, 0, 0, 0.9);
}

/* 移动端优化 */
@media (max-width: 768px) {
    .lightbox-content {
        width: 95%;
        height: 85%;
    }

    .lightbox-close-btn {
        width: 32px;
        height: 32px;
        font-size: 20px;
        line-height: 32px;
        top: 5px;
        right: 5px;
    }

    .lightbox-nav-btn {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }
    
    .lightbox-nav-btn.prev {
        left: 5px;
    }
    
    .lightbox-nav-btn.next {
        right: 5px;
    }
}

/* --- 性能优化 --- */
img {
    content-visibility: auto;
    contain-intrinsic-size: 200px 200px;
}

.thumbnail-item img {
    will-change: transform;
    contain: layout style paint;
}

.spinner {
    will-change: transform;
    contain: layout style paint;
}

/* --- 减少重绘 --- */
.modal-overlay {
    contain: layout style paint;
}

.panel-style {
    contain: layout style;
}

/* --- 优化滚动性能 --- */
.modal-body {
    contain: layout style;
    overscroll-behavior: contain;
}

/* --- 历史记录详情模态框样式 --- */
.history-detail-content {
    max-width: 80vw;
    max-height: 90vh;
}

.history-detail-body {
    display: flex;
    gap: 20px;
    height: calc(100% - 70px); /* 减去头高度 */
}

.history-detail-image-container {
    flex: 2; /* 图片占2/3空间 */
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(120, 120, 128, 0.1);
    border-radius: var(--border-radius-small);
    overflow: hidden;
}

#history-detail-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.history-detail-prompt-container {
    flex: 1; /* 提示词占1/3空间 */
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.history-detail-prompt-container h4 {
    margin-top: 0;
    margin-bottom: 10px;
    color: var(--text-color);
}

.history-detail-prompt-container p {
    margin: 0;
    font-size: 0.95em;
    line-height: 1.7;
    color: var(--text-color-secondary);
    white-space: pre-wrap; /* 保留换行和空格 */
    word-wrap: break-word;
}

@media (max-width: 1024px) {
    .history-detail-body {
        flex-direction: column;
    }
    .history-detail-image-container {
        min-height: 300px;
    }
}

#prompt-display-area {
    contain: layout style;
    overscroll-behavior: contain;
}