/* 
 * Editable Figure - 样式表
 * 简洁现代的设计风格，米白色背景色调
 */

/* CSS 变量 */
:root {
    --bg-primary: #eee9df;
    --bg-secondary: #ffffff;
    --bg-tertiary: #e7e1d6;
    --text-primary: #1d1c1a;
    --text-secondary: #6f6b65;
    --text-tertiary: #9a948c;
    --border-color: #e4e1dc;
    --border-light: #ece9e4;
    --accent-color: #2c2a27;
    --accent-hover: #1f1d1b;
    --accent-light: #ebe7e1;
    --danger-color: #DC2626;
    --danger-hover: #B91C1C;
    --success-color: #059669;
    --shadow-sm: 0 1px 2px rgba(23, 20, 16, 0.05);
    --shadow-md: 0 8px 18px rgba(20, 18, 15, 0.08);
    --shadow-lg: 0 16px 36px rgba(16, 14, 12, 0.1);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --transition: all 0.2s ease;
}

/* 基础重置 */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

#app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    width: 100%;
    overflow-x: hidden;
    padding-top: 62px;
}

/* 顶部导航栏 */
.navbar {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    padding: 0 30px;
    gap: 28px;
    height: 62px;
    background: var(--bg-primary);
    border-bottom: 1px solid #ddd5c8;
    backdrop-filter: blur(10px);
    flex-shrink: 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 200;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 19px;
    color: var(--text-primary);
}

.logo-icon {
    width: 24px;
    height: 24px;
    color: var(--accent-color);
}

.navbar-nav {
    display: flex;
    gap: 6px;
}

.nav-link {
    padding: 8px 14px;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

/* 语言切换器 */
.lang-switcher {
    position: relative;
    margin-left: auto;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 13px;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.lang-btn:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border-color: var(--text-muted);
}

.lang-btn .globe-icon {
    width: 15px;
    height: 15px;
    flex-shrink: 0;
}

.lang-btn .chevron {
    width: 12px;
    height: 12px;
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.lang-switcher.open .lang-btn .chevron {
    transform: rotate(180deg);
}

.lang-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: 0 8px 24px rgba(0,0,0,0.10);
    min-width: 130px;
    z-index: 1000;
    overflow: hidden;
    padding: 4px;
}

.lang-switcher.open .lang-dropdown {
    display: block;
}

.lang-option {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 13px;
    border-radius: calc(var(--radius-md) - 2px);
    transition: var(--transition);
}

.lang-option:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.lang-option.active {
    color: var(--text-primary);
    font-weight: 500;
}

.lang-option .check-icon {
    width: 14px;
    height: 14px;
    color: var(--accent-color);
}

/* 主容器 */
.main-container {
    display: grid;
    grid-template-columns: minmax(320px, 4fr) minmax(0, 6fr);
    height: 74vh;
    min-height: 560px;
    width: min(96vw, 1680px);
    min-width: 0;
    overflow: visible;
    gap: 14px;
    padding: 14px;
    background: var(--bg-primary);
    margin: 0 auto;
}

.intro-panel {
    width: auto;
    min-width: 0;
    max-width: none;
    padding: 22px 12px 0 12px;
}

.intro-title {
    font-family: 'Playfair Display', Georgia, 'Times New Roman', serif;
    font-size: 52px;
    line-height: 1.15;
    color: var(--text-primary);
    margin-bottom: 14px;
}

.intro-desc {
    font-size: 20px;
    line-height: 1.6;
    color: var(--text-secondary);
    max-width: 92%;
    margin-bottom: 16px;
}

.intro-highlights {
    max-width: 92%;
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 18px;
}

.intro-chip {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    max-width: 100%;
    padding: 10px 18px;
    border-radius: 999px;
    border: 2px solid #d4cec3;
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
    color: #1f1d1a;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.2;
}

.canvas-mode-switcher {
    max-width: 92%;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-top: 8px;
    border-top: 1px solid #ded6c9;
}

.canvas-mode-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 12px;
    border: 1px solid #d9d1c4;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.45);
    color: #5b554d;
    font-size: 13px;
    line-height: 1.2;
}

.canvas-mode-item.active {
    border-color: #bfb39f;
    background: rgba(255, 255, 255, 0.82);
    color: #1f1d1a;
    font-weight: 600;
}

.canvas-mode-badge {
    padding: 3px 8px;
    border-radius: 999px;
    background: #e8e2d6;
    color: #7b7268;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

/* 左侧工具栏 */
.toolbar {
    width: 252px;
    height: auto;
    background: #e8e2d8;
    border: 1px solid #ddd4c6;
    border-radius: 16px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    overflow-y: auto;
    overflow-x: hidden;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
    position: absolute;
    left: 14px;
    top: 14px;
    bottom: 14px;
    z-index: 20;
}

.toolbar-section {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toolbar-hints {
    margin-top: auto;
    padding-top: 12px;
    border-top: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.toolbar-hints p {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.3;
    white-space: nowrap;
}

.toolbar-title {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-tertiary);
}

.tool-buttons {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.tool-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.tool-btn svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.tool-btn:hover:not(:disabled) {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.tool-btn.active {
    background: var(--accent-light);
    color: var(--accent-color);
    border-color: var(--accent-color);
}

.tool-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* 开关选项 */
.toggle-option {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    padding: 8px 10px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-top: 0;
}

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

.toggle-hint {
    width: 100%;
    font-size: 10px;
    color: var(--text-tertiary);
    margin-top: -4px;
}

/* 开关按钮样式 */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 40px;
    height: 22px;
    flex-shrink: 0;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border-color);
    box-shadow: inset 0 0 0 1.5px #bfb8ae;
    transition: var(--transition);
    border-radius: 22px;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: var(--transition);
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--accent-color);
    box-shadow: none;
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(18px);
}

.toggle-switch input:focus + .toggle-slider {
    box-shadow: 0 0 0 2px var(--accent-light);
}

/* 属性面板 */
/* 属性行布局 */
.property-row {
    display: flex;
    gap: 6px;
    margin-bottom: 12px;
    min-width: 0;
}

.property-row .property-group {
    margin-bottom: 0;
}

/* 字体和大小布局 */
.font-group {
    flex: 2;
    min-width: 0;
}

.size-group {
    flex: 1;
    min-width: 74px;
}

/* 紧凑行：颜色、样式、对齐 */
.compact-row {
    gap: 4px;
}

.compact-row .property-group {
    flex: 1;
    min-width: 0;
}

.color-group {
    flex: 0 0 34px !important;
}

.style-group {
    flex: 0 0 62px !important;
}

.align-group {
    flex: 0 0 92px !important;
}

.property-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.property-group label {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-secondary);
}

.prop-select {
    padding: 8px 8px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    font-size: 13px;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
}

.prop-select:hover {
    border-color: var(--text-tertiary);
}

.prop-select:focus {
    outline: none;
    border-color: var(--accent-color);
}

.input-with-unit {
    display: flex;
    align-items: center;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.prop-input {
    flex: 1;
    padding: 8px 6px;
    border: none;
    font-size: 13px;
    color: var(--text-primary);
    background: var(--bg-secondary);
    min-width: 0;
}

.prop-input:focus {
    outline: none;
}

.input-with-unit:focus-within {
    border-color: var(--accent-color);
}

.unit {
    padding: 8px 6px;
    background: var(--bg-tertiary);
    font-size: 12px;
    color: var(--text-tertiary);
    min-width: 28px;
    text-align: center;
    flex-shrink: 0;
}

.color-picker-wrapper {
    display: flex;
    gap: 8px;
    align-items: center;
}

.color-picker {
    width: 36px;
    height: 36px;
    padding: 2px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    background: var(--bg-secondary);
}

/* 颜色选择器 */
.color-picker-wrapper {
    position: relative;
}

.color-swatch-btn {
    width: 28px;
    height: 28px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.color-swatch-btn:hover {
    border-color: var(--text-tertiary);
}

.color-picker-popup {
    position: absolute;
    bottom: 100%;
    left: 0;
    margin-bottom: 6px;
    padding: 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 100;
    min-width: 180px;
}

.color-picker-section {
    margin-bottom: 10px;
}

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

.color-picker-section label {
    display: block;
    font-size: 11px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.color-picker-large {
    width: 100%;
    height: 32px;
    padding: 2px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    background: var(--bg-secondary);
}

.color-picker-large::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-picker-large::-webkit-color-swatch {
    border: none;
    border-radius: 2px;
}

.color-picker::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-picker::-webkit-color-swatch {
    border: none;
    border-radius: 2px;
}

.color-input {
    flex: 1;
    padding: 8px 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-family: monospace;
    color: var(--text-primary);
    text-transform: uppercase;
}

.color-input:focus {
    outline: none;
    border-color: var(--accent-color);
}

.style-buttons,
.align-buttons {
    display: flex;
    gap: 2px;
}

.style-btn {
    width: 28px;
    height: 28px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    font-size: 13px;
    font-weight: 700;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.style-btn svg {
    width: 12px;
    height: 12px;
}

.style-btn.italic {
    font-style: italic;
}

.style-btn:hover {
    border-color: var(--text-tertiary);
}

.style-btn.active {
    background: var(--accent-light);
    color: var(--accent-color);
    border-color: var(--accent-color);
}

.preset-colors {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

.preset-color-btn {
    width: 24px;
    height: 24px;
    border: 1px solid var(--border-color);
    border-radius: 3px;
    background: var(--swatch);
    cursor: pointer;
    transition: var(--transition);
}

.preset-color-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.preset-color-btn.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 1px var(--accent-color);
}

.apply-btn {
    padding: 10px;
    border: none;
    border-radius: var(--radius-md);
    background: var(--accent-color);
    color: white;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.apply-btn:hover {
    background: var(--accent-hover);
}

.delete-btn {
    padding: 10px;
    border: 1px solid var(--danger-color);
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--danger-color);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.delete-btn:hover {
    background: var(--danger-color);
    color: white;
}

/* 导出按钮 */
.export-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.export-row .toolbar-title {
    margin: 0;
    flex-shrink: 0;
    min-width: 28px;
}

.export-buttons {
    display: flex;
    flex-direction: row;
    gap: 8px;
    flex: 1;
}

.export-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.export-btn svg {
    width: 16px;
    height: 16px;
}

.export-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--text-tertiary);
}

/* 操作按钮 */
.action-buttons {
    display: flex;
    gap: 8px;
}

.action-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition);
}

.action-btn svg {
    width: 18px;
    height: 18px;
}

.action-btn:hover:not(:disabled) {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.action-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* 画布容器 */
.canvas-container {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, #efe9df 0%, #e7e1d7 100%);
    display: flex;
    min-width: 0;
    min-height: 0;
    align-items: center;
    justify-content: center;
    border: 2px solid #cfc4b2;
    border-radius: 16px;
    box-shadow: 0 10px 22px rgba(45, 36, 24, 0.12), inset 0 0 0 1px rgba(255, 255, 255, 0.3);
    box-sizing: border-box;
    padding-left: 280px;
}

.fullscreen-toggle-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 34px;
    height: 34px;
    border: 1px solid #cabca8;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.88);
    color: #3d372f;
    font-size: 16px;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 30;
}

.fullscreen-toggle-btn:hover {
    background: #ffffff;
}

body.fullscreen-mode {
    overflow: hidden;
}

body.fullscreen-mode .main-container {
    width: 100vw !important;
    max-width: none !important;
    height: calc(100vh - 62px) !important;
    min-height: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    gap: 0 !important;
    display: flex !important;
    background-color: #f1ece3 !important;
    background-image:
        linear-gradient(45deg, #e2dbcf 25%, transparent 25%, transparent 75%, #e2dbcf 75%),
        linear-gradient(45deg, #e2dbcf 25%, transparent 25%, transparent 75%, #e2dbcf 75%) !important;
    background-size: 24px 24px !important;
    background-position: 0 0, 12px 12px !important;
}

body.fullscreen-mode .intro-panel {
    display: none !important;
}

body.fullscreen-mode .canvas-container {
    flex: 1 !important;
    min-width: 0 !important;
    min-height: 0 !important;
    margin: 0 !important;
    border: none !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    background: transparent !important;
    padding-left: 300px !important;
}

body.fullscreen-mode .toolbar {
    top: 16px;
    bottom: 16px;
    left: 16px;
    background: rgba(233, 226, 214, 0.95);
    z-index: 40;
}

body.fullscreen-mode .canvas-wrapper {
    background: transparent !important;
}

/* 上传区域 */
.upload-area {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.upload-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 60px;
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    cursor: pointer;
}

.upload-area:hover .upload-content {
    border-color: #9c9387;
}

.upload-area.drag-over .upload-content {
    border-color: var(--accent-color);
}

.upload-icon {
    width: 64px;
    height: 64px;
    color: var(--text-tertiary);
}

.upload-area:hover .upload-icon,
.upload-area.drag-over .upload-icon {
    color: var(--accent-color);
}

.upload-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.upload-desc {
    font-size: 14px;
    color: var(--text-secondary);
}

.upload-methods {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 8px;
}

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

.upload-methods .divider {
    color: var(--border-color);
}

/* 画布包装器 */
.canvas-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f1ece3;
    background-image:
        linear-gradient(45deg, #dedad3 25%, transparent 25%, transparent 75%, #dedad3 75%),
        linear-gradient(45deg, #dedad3 25%, transparent 25%, transparent 75%, #dedad3 75%);
    background-size: 20px 20px;
    background-position: 0 0, 10px 10px;
    overflow: hidden;
    width: 100%;
    height: 100%;
}

/* 画布内部容器 */
.canvas-inner {
    position: relative;
    box-shadow: var(--shadow-lg);
    overflow: visible;
}

canvas {
    display: block;
}

/* 覆盖层（文本框 + 选择框） */
.overlay-layer {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: visible;
}

.text-box {
    position: absolute;
    pointer-events: auto;
    cursor: move;
    min-width: 20px;
    min-height: 20px;
    padding: 4px;
    border: 1px solid transparent;
    transition: border-color 0.15s;
}

.text-box:hover {
    border-color: var(--accent-color);
}

.text-box.selected {
    border-color: var(--accent-color);
    border-style: solid;
    z-index: 10;
}

.text-box.editing {
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.8);
}

/* 快捷文本属性工具栏 */
.text-quick-toolbar {
    position: absolute;
    bottom: 100%;
    left: 0;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 4px;
    background: #fff;
    border: 1px solid #d0d0d0;
    border-radius: 6px;
    padding: 4px 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    white-space: nowrap;
    z-index: 100;
}

.quick-font-select {
    font-size: 12px;
    padding: 2px 4px;
    border: 1px solid #ccc;
    border-radius: 4px;
    background: #fff;
    max-width: 80px;
    cursor: pointer;
}

.quick-size-control {
    display: flex;
    align-items: center;
    gap: 2px;
}

.quick-btn {
    width: 24px;
    height: 24px;
    border: 1px solid #ccc;
    border-radius: 4px;
    background: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: bold;
    color: #333;
    transition: all 0.15s;
}

.quick-btn:hover {
    background: #f0f0f0;
    border-color: #aaa;
}

.quick-btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: #fff;
}

.quick-btn.italic {
    font-style: italic;
}

.quick-btn svg {
    width: 14px;
    height: 14px;
}

.quick-divider {
    width: 1px;
    height: 20px;
    background: #ddd;
    margin: 0 2px;
}

.text-content {
    white-space: pre-wrap;
    word-break: break-word;
    user-select: none;
}

.text-input {
    width: 100%;
    height: 100%;
    min-width: 100px;
    min-height: 30px;
    border: none;
    background: transparent;
    resize: none;
    outline: none;
    font-family: inherit;
}

.resize-handles .resize-handle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: white;
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    z-index: 10;
}

/* 四角控制点 */
.resize-handle.nw { top: -5px; left: -5px; cursor: nwse-resize; }
.resize-handle.ne { top: -5px; right: -5px; cursor: nesw-resize; }
.resize-handle.sw { bottom: -5px; left: -5px; cursor: nesw-resize; }
.resize-handle.se { bottom: -5px; right: -5px; cursor: nwse-resize; }

/* 四边中点控制点 */
.resize-handle.n { top: -5px; left: 50%; transform: translateX(-50%); cursor: ns-resize; }
.resize-handle.s { bottom: -5px; left: 50%; transform: translateX(-50%); cursor: ns-resize; }
.resize-handle.w { top: 50%; left: -5px; transform: translateY(-50%); cursor: ew-resize; }
.resize-handle.e { top: 50%; right: -5px; transform: translateY(-50%); cursor: ew-resize; }

/* 旋转控制连接线 */
.rotate-line {
    position: absolute;
    bottom: -30px;
    left: 50%;
    width: 2px;
    height: 25px;
    background: var(--accent-color);
    transform: translateX(-50%);
}

/* 旋转控制点 */
.rotate-handle {
    position: absolute;
    bottom: -50px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 24px;
    background: white;
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    cursor: grab;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 11;
    transition: var(--transition);
}

.rotate-handle:hover {
    background: var(--accent-light);
    transform: translateX(-50%) scale(1.1);
}

.rotate-handle:active {
    cursor: grabbing;
}

.rotate-handle svg {
    width: 14px;
    height: 14px;
    color: var(--accent-color);
}

/* 旋转辅助线 */
.rotation-guide {
    position: absolute;
    pointer-events: none;
    z-index: 100;
}

.rotation-guide.horizontal {
    top: 50%;
    left: -100px;
    right: -100px;
    height: 2px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        var(--success-color) 20%, 
        var(--success-color) 80%, 
        transparent 100%
    );
    transform: translateY(-50%);
}

.rotation-guide.vertical {
    left: 50%;
    top: -100px;
    bottom: -100px;
    width: 2px;
    background: linear-gradient(180deg, 
        transparent 0%, 
        var(--success-color) 20%, 
        var(--success-color) 80%, 
        transparent 100%
    );
    transform: translateX(-50%);
}

/* 选择框 */
.selection-box {
    position: absolute;
    border: 1px dashed var(--accent-color);
    background: rgba(217, 119, 6, 0.1);
    pointer-events: none;
}

.selection-box.pending {
    pointer-events: auto;
}

.selection-info {
    position: absolute;
    bottom: -24px;
    left: 50%;
    transform: translateX(-50%);
    padding: 2px 8px;
    background: var(--text-primary);
    color: white;
    font-size: 11px;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

/* 选择框控制点容器 */
.selection-resize-handles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

/* 选择框的8个控制点 */
.selection-handle {
    position: absolute;
    width: 10px;
    height: 10px;
    background: white;
    border: 2px solid var(--accent-color);
    border-radius: 50%;
    pointer-events: auto;
    z-index: 10;
}

/* 四角控制点 */
.selection-handle.nw { top: -5px; left: -5px; cursor: nwse-resize; }
.selection-handle.ne { top: -5px; right: -5px; cursor: nesw-resize; }
.selection-handle.sw { bottom: -5px; left: -5px; cursor: nesw-resize; }
.selection-handle.se { bottom: -5px; right: -5px; cursor: nwse-resize; }

/* 四边中点控制点 */
.selection-handle.n { top: -5px; left: 50%; transform: translateX(-50%); cursor: ns-resize; }
.selection-handle.s { bottom: -5px; left: 50%; transform: translateX(-50%); cursor: ns-resize; }
.selection-handle.w { top: 50%; left: -5px; transform: translateY(-50%); cursor: ew-resize; }
.selection-handle.e { top: 50%; right: -5px; transform: translateY(-50%); cursor: ew-resize; }

/* 选择框待确认时可拖拽 */
.selection-box.pending {
    cursor: move;
}

/* 选择框确认按钮 */
.selection-confirm-btn {
    position: absolute;
    top: -36px;
    right: -36px;
    width: 28px;
    height: 28px;
    border: none;
    border-radius: 50%;
    background: var(--success-color);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    pointer-events: auto;
    z-index: 10;
}

.selection-confirm-btn:hover {
    background: #047857;
    transform: scale(1.1);
}

.selection-confirm-btn svg {
    width: 16px;
    height: 16px;
}

.selection-confirm-btn:disabled {
    opacity: 0.7;
    cursor: wait;
}

/* 选择框取消按钮 */
.selection-cancel-btn {
    position: absolute;
    top: -2px;
    right: -36px;
    width: 28px;
    height: 28px;
    border: none;
    border-radius: 50%;
    background: var(--danger-color);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    pointer-events: auto;
    z-index: 10;
}

.selection-cancel-btn:hover {
    background: var(--danger-hover);
    transform: scale(1.1);
}

.selection-cancel-btn svg {
    width: 16px;
    height: 16px;
}

/* OCR 徽章 */
.ocr-badge {
    position: absolute;
    top: -36px;
    right: 0px;
    padding: 2px 6px;
    background: #6366f1;
    color: white;
    font-size: 10px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    pointer-events: none;
    box-shadow: var(--shadow-sm);
}

/* OCR 加载动画 */
.ocr-loading-spinner {
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* 缩放控制 */
.zoom-controls {
    position: absolute;
    bottom: 20px;
    right: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px;
    background: rgba(255, 255, 255, 0.94);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

/* 底部画布缩略图栏 */
.canvas-pages-panel {
    position: absolute;
    bottom: 18px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    max-width: calc(100% - 220px);
    overflow-x: auto;
    z-index: 30;
}

.canvas-page-item {
    position: relative;
    width: 72px;
    height: 42px;
    border: 2px solid transparent;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    flex-shrink: 0;
    background: #fff;
}

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

.canvas-page-thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.canvas-page-delete {
    position: absolute;
    right: 2px;
    top: 2px;
    width: 16px;
    height: 16px;
    border: none;
    border-radius: 50%;
    background: rgba(220, 38, 38, 0.9);
    color: #fff;
    font-size: 12px;
    line-height: 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.canvas-page-add {
    width: 42px;
    height: 42px;
    border: 1px dashed var(--accent-color);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--accent-color);
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    flex-shrink: 0;
}

.canvas-page-add:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.zoom-btn {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: var(--radius-sm);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.zoom-btn.fit {
    width: auto;
    padding: 0 12px;
    font-size: 12px;
}

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

.zoom-level {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    min-width: 48px;
    text-align: center;
}

/* 模态框 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal {
    background: var(--bg-secondary);
    padding: 24px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 400px;
    width: 90%;
}

.modal h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.modal p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.color-preview {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.color-preview span {
    font-size: 13px;
    color: var(--text-secondary);
}

.color-box {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

.modal-btn {
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.modal-btn.cancel {
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-secondary);
}

.modal-btn.cancel:hover {
    background: var(--bg-tertiary);
}

.modal-btn.confirm {
    border: none;
    background: var(--accent-color);
    color: white;
}

.modal-btn.confirm:hover {
    background: var(--accent-hover);
}

/* Toast 提示 */
.toast {
    position: absolute;
    top: 58px;
    right: 12px;
    transform: none;
    padding: 10px 16px;
    background: var(--text-primary);
    color: white;
    font-size: 13px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 1001;
    white-space: nowrap;
    animation: toastFadeIn 0.25s ease;
}

.toast.success {
    background: var(--success-color);
}

.toast.error {
    background: var(--danger-color);
}

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translate(-50%, 20px);
    }
    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

/* 落地页区域 */
.landing-section {
    background: var(--bg-primary);
    padding: 84px 24px 70px;
    border-top: 1px solid var(--border-light);
}

.landing-container {
    max-width: 1200px;
    margin: 0 auto;
}

.landing-hero {
    text-align: center;
    margin-bottom: 56px;
}

.landing-title {
    font-family: 'Playfair Display', Georgia, 'Times New Roman', serif;
    font-size: 48px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 18px;
    line-height: 1.2;
    letter-spacing: 0.01em;
}

.landing-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 760px;
    margin: 0 auto 26px;
    line-height: 1.7;
}

.landing-badges {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.badge {
    padding: 7px 16px;
    background: #f0ece6;
    color: #5a554e;
    font-size: 12px;
    font-weight: 500;
    border-radius: 24px;
    border: 1px solid #e3ddd5;
}

/* 功能卡片 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
    margin-bottom: 34px;
}

.feature-card {
    background: var(--bg-secondary);
    border: 1px solid #e9e6e1;
    border-radius: var(--radius-lg);
    padding: 30px 24px;
    position: relative;
    transition: var(--transition);
    box-shadow: 0 6px 18px rgba(27, 23, 18, 0.04);
}

.feature-card:hover {
    border-color: #dcd6cd;
    box-shadow: 0 10px 24px rgba(22, 19, 15, 0.08);
    transform: translateY(-2px);
}

.feature-card.coming-soon {
    opacity: 0.75;
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: #f3f0eb;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    color: #4b4640;
}

.feature-card h3 {
    font-size: 20px;
    font-family: 'Playfair Display', Georgia, 'Times New Roman', serif;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.coming-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 4px 10px;
    background: #8f887f;
    color: white;
    font-size: 11px;
    font-weight: 600;
    border-radius: 12px;
}

/* 支持的工具 */
.supported-tools {
    text-align: center;
    padding: 38px 36px;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid #e8e4df;
    box-shadow: 0 8px 20px rgba(20, 17, 14, 0.04);
}

.supported-tools h2 {
    font-size: 40px;
    font-family: 'Playfair Display', Georgia, 'Times New Roman', serif;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 28px;
    line-height: 1.2;
}

.tools-list {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
}

.tools-list span {
    padding: 8px 18px;
    background: #f1eeea;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    border-radius: 999px;
    border: 1px solid #e7e2db;
}

.landing-cta {
    margin-top: 26px;
    background: #262422;
    border-radius: 18px;
    padding: 48px 24px 42px;
    text-align: center;
    color: #f5f3ef;
}

.landing-cta h2 {
    font-family: 'Playfair Display', Georgia, 'Times New Roman', serif;
    font-size: 40px;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 12px;
    color: #fffefb;
}

.landing-cta p {
    max-width: 760px;
    margin: 0 auto 24px;
    font-size: 14px;
    line-height: 1.7;
    color: rgba(248, 245, 241, 0.78);
}

.landing-cta-btn {
    border: 1px solid rgba(255, 255, 255, 0.32);
    background: #f7f4ef;
    color: #1f1d1a;
    border-radius: 999px;
    padding: 10px 26px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-block;
    text-decoration: none;
}

.landing-cta-btn:hover {
    background: #ffffff;
    transform: translateY(-1px);
}

/* 页脚 */
.site-footer {
    background: #e9e3d8;
    padding: 56px 24px 30px;
    border-top: 1px solid var(--border-light);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    gap: 60px;
    flex-wrap: wrap;
}

.footer-brand {
    max-width: 360px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 17px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.footer-logo .logo-icon {
    width: 24px;
    height: 24px;
    color: var(--accent-color);
}

.footer-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.footer-legal {
    width: 100%;
    margin-top: 18px;
    font-size: 13px;
    color: var(--text-secondary);
    text-align: center;
}
.footer-legal a {
    color: var(--accent-color);
    text-decoration: underline;
}

.footer-links {
    display: flex;
    gap: 60px;
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-column h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.footer-column a {
    font-size: 13px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-column a:hover {
    color: var(--accent-color);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .intro-panel {
        padding: 14px 8px 0 8px;
    }

    .intro-title {
        font-size: 40px;
    }

    .intro-desc {
        font-size: 20px;
    }

    .intro-chip {
        font-size: 13px;
        padding: 8px 14px;
    }

    .toolbar {
        width: 200px;
    }

    .canvas-container {
        padding-left: 228px;
    }
    
    .navbar {
        padding: 0 16px;
    }
    
    .landing-title {
        font-size: 36px;
    }
    
    .landing-subtitle {
        font-size: 15px;
    }

    .supported-tools h2 {
        font-size: 30px;
    }

    .landing-cta h2 {
        font-size: 30px;
    }
    
    .footer-container {
        flex-direction: column;
        gap: 40px;
    }
    
    .footer-links {
        gap: 40px;
    }
}

@media (max-width: 600px) {
    .intro-panel {
        display: none;
    }

    .toolbar {
        position: absolute;
        left: 12px;
        top: 12px;
        bottom: 0;
        z-index: 100;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .toolbar.open {
        transform: translateX(0);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }

    .landing-cta {
        padding: 36px 16px 32px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 30px;
    }
}