body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: #f5f5f7;
    color: #1d1d1f;
}

h1 {
    text-align: center;
    color: #1d1d1f;
    margin-bottom: 30px;
    font-weight: 600;
    letter-spacing: -0.5px;
}

/* 新增：左2右8分区布局 */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.layout-grid {
    display: grid;
    grid-template-columns: 2.5fr 8.5fr;
    gap: 20px;
    align-items: start;
}

.left-panel {
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-radius: 18px;
    padding: 25px;
    height: fit-content;
    position: sticky;
    top: 100px;
}

.right-panel {
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border-radius: 18px;
    padding: 30px;
}

/* 手机端响应式布局 */
@media (max-width: 768px) {
    .layout-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .left-panel,
    .right-panel {
        position: relative;
        top: auto;
        padding: 20px;
        margin-bottom: 15px;
    }
    
    .left-panel {
        order: 1;
    }
    
    .right-panel {
        order: 2;
    }
}

/* 平板端响应式调整 */
@media (max-width: 1024px) {
    .layout-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .left-panel {
        position: relative;
        top: auto;
    }
}

/* 超大屏幕优化 */
@media (min-width: 1600px) {
    .container {
        max-width: 1600px;
        padding: 30px;
    }
    
    .layout-grid {
        grid-template-columns: 2.5fr 8.5fr;
        gap: 30px;
    }
}

.upload-area {
    border: 2px dashed rgba(0, 0, 0, 0.1);
    padding: 40px 20px;
    margin: 20px 0;
    text-align: center;
    border-radius: 12px;
    transition: all 0.3s ease;
    background-color: rgba(255, 255, 255, 0.5);
    position: relative;
}

.upload-area:hover {
    border-color: #0071e3;
    background-color: rgba(0, 113, 227, 0.05);
}

/* 拖拽区域样式 */
.upload-area.dragover {
    border-color: #0071e3;
    background-color: rgba(0, 113, 227, 0.1);
    transform: scale(1.02);
}

/* 拖拽提示文字样式 */
.drag-hint {
    color: #666;
    font-size: 14px;
    margin: 10px 0 0 0;
    padding: 0;
}

/* 美化复选框样式 */
input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    width: 20px;
    height: 20px;
    border: 2px solid #0071e3;
    border-radius: 4px;
    background-color: white;
    position: relative;
    cursor: pointer;
    vertical-align: middle;
    margin-right: 8px;
}

input[type="checkbox"]:checked::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: translate(-50%, -50%) rotate(45deg);
}

input[type="checkbox"]:checked {
    background-color: #0071e3;
    border-color: #0071e3;
}

input[type="checkbox"]:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.3);
}

input[type="checkbox"] + span {
    vertical-align: middle;
    cursor: pointer;
}

/* 统一按钮样式 */
.button, button {
    padding: 12px 24px;
    margin: 10px 5px;
    cursor: pointer;
    background-color: #0071e3;
    color: white;
    border: none;
    border-radius: 24px;
    transition: all 0.3s ease;
    font-weight: 500;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
    font-size: 16px;
    min-width: 120px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.button:hover, button:hover {
    background-color: #0077ed;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.button:active, button:active {
    background-color: #0062c4;
    transform: translateY(0);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.button.success, button.success {
    background-color: #28a745;
    animation: pulse 0.6s ease-in-out;
}

.button:disabled, button:disabled {
    background-color: #6c757d;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.button::after, button::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 5px;
    height: 5px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 0;
    border-radius: 100%;
    transform: scale(1, 1) translate(-50%);
    transform-origin: 50% 50%;
}

.button:focus:not(:active)::after, button:focus:not(:active)::after {
    animation: ripple 1s ease-out;
}

@keyframes ripple {
    0% {
        transform: scale(0, 0);
        opacity: 0.5;
    }
    100% {
        transform: scale(50, 50);
        opacity: 0;
    }
}

.canvas-container {
    margin-top: 30px;
}

.canvas-container h3 {
    color: #1d1d1f;
    margin-bottom: 20px;
    font-weight: 600;
    font-size: 1.2em;
    display: flex;
    align-items: center;
    gap: 10px;
}

.canvas-container h3::before {
    content: '';
    width: 4px;
    height: 24px;
    background-color: #0071e3;
    border-radius: 2px;
}

canvas {
    border: 1px solid rgba(0, 0, 0, 0.08);
    margin: 0;
    border-radius: 16px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    max-width: 100%;
    height: auto;
    box-sizing: border-box;
    opacity: 1;
    transition: all 0.3s ease;
    background-color: #fff;
}

#originalCanvas {
    border: 2px solid rgba(0, 113, 227, 0.2);
    box-shadow: 0 8px 30px rgba(0, 113, 227, 0.1);
}

#originalCanvas:hover {
    box-shadow: 0 12px 40px rgba(0, 113, 227, 0.15);
}

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

#imageInput {
    display: none;
}

.upload-area label, .button {
    display: inline-block;
    padding: 12px 24px;
    background-color: #0071e3;
    color: white;
    border-radius: 24px;
    cursor: pointer;
    margin-bottom: 10px;
    transition: all 0.3s ease;
    font-weight: 500;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: relative;
    overflow: hidden;
    /* 添加波纹效果 */
    transform: translateZ(0);
    font-size: 16px;
    min-width: 120px;
    text-align: center;
}

.upload-area label:hover, .button:hover {
    background-color: #0077ed;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.upload-area label.success, .button.success {
    background-color: #28a745;
    animation: pulse 0.6s ease-in-out;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.upload-area label::after {
    content: "";
    display: block;
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background-image: radial-gradient(circle, #fff 10%, transparent 10.01%);
    background-repeat: no-repeat;
    background-position: 50%;
    transform: scale(10, 10);
    opacity: 0;
    transition: transform .3s, opacity 1s;
}

.upload-area label:active::after {
    transform: scale(0, 0);
    opacity: .3;
    transition: 0s;
}

.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    grid-auto-rows: minmax(180px, auto);
    gap: 20px;
    margin-top: 20px;
    padding: 20px;
    overflow-y: auto;
    max-height: 70vh;
    align-items: start;
    background-color: rgba(248, 249, 250, 0.5);
    border-radius: 16px;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.grid-container::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.grid-container::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
}

.grid-container::-webkit-scrollbar-thumb {
    background-color: #0071e3;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.grid-container::-webkit-scrollbar-thumb:hover {
    background-color: #0077ed;
}

.grid-container.active {
    cursor: grabbing;
    user-select: none;
}

.grid-container canvas {
    width: 100%;
    height: 100%;
    box-sizing: border-box;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background-color: #fff;
    border: 2px solid transparent;
}

.grid-container canvas:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
    border-color: rgba(0, 113, 227, 0.3);
}

.grid-container canvas:active {
    transform: translateY(-1px);
    transition: transform 0.1s ease;
}

/* 响应式网格布局 */
@media (max-width: 1200px) {
    .grid-container {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 15px;
        padding: 15px;
    }
}

@media (max-width: 768px) {
    .grid-container {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 12px;
        padding: 12px;
        max-height: 60vh;
    }
    
    .grid-container canvas {
        border-radius: 8px;
    }
}

@media (max-width: 480px) {
    .grid-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        padding: 10px;
    }
}

/* 大图预览模式 */
.grid-container.preview-mode {
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
}

.grid-container.preview-mode canvas {
    max-width: 600px;
    margin: 0 auto;
    display: block;
}

/* 视图控制按钮样式 */
.view-controls {
    display: flex;
    gap: 8px;
    align-items: center;
}

.view-btn {
    padding: 12px 24px;
    background-color: #f8f9fa;
    border: 1px solid #adb5bd;
    border-radius: 24px;
    cursor: pointer;
    font-size: 16px;
    color: #495057;
    transition: all 0.2s ease;
    min-width: 120px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.view-btn:hover {
    background-color: #e9ecef;
    transform: translateY(-1px);
}

.view-btn.active {
    background-color: #0071e3;
    color: white;
    border-color: #0071e3;
}

.view-btn.active:hover {
    background-color: #0077ed;
}



/* 图片计数器样式 */
#imageCount {
    font-weight: 500;
    padding: 4px 12px;
    background-color: rgba(0, 113, 227, 0.1);
    border-radius: 12px;
    color: #0071e3;
}

/* 动作栏样式 */
.action-bar {
    flex-wrap: wrap;
    gap: 10px 15px;
}

@media (max-width: 768px) {
    .action-bar {
        flex-direction: column;
        align-items: stretch;
    }
    
    .view-controls {
        justify-content: center;
    }
}

/* 顶部导航栏样式 - 优化性能 */
.nav-links {
    background-color: rgba(255, 255, 255, 0.95);
    padding: 15px 20px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    justify-content: center;
    align-items: center;

    /* 移动端样式调整 */
    @media (max-width: 768px) {
        justify-content: space-between;
    }
}

/* 汉堡菜单样式 */
.nav-toggle {
    display: none;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px 0;
    background-color: #333;
    transition: all 0.3s ease;
}

/* 菜单样式 */
.nav-menu {
    display: flex;
}

.nav-menu a {
    margin: 0 15px;
    text-decoration: none;
    color: #1d1d1f;
    font-weight: 500;
    padding: 12px 24px;
    border-radius: 24px;
    border: 1px solid transparent;
    transition: all 0.2s ease;
    display: inline-block;
    min-width: 120px;
    text-align: center;
}

.nav-links a {
    margin: 0 15px;
    text-decoration: none;
    color: #1d1d1f;
    font-weight: 500;
    padding: 12px 24px;
    border-radius: 24px;
    border: 1px solid transparent;
    transition: all 0.2s ease;
    display: inline-block;
    min-width: 120px;
    text-align: center;
}

.nav-menu a:hover {
    background-color: rgba(0, 113, 227, 0.1);
    color: #0071e3;
    border-color: rgba(0, 113, 227, 0.2);
}

.nav-menu a.active {
    background-color: #0071e3;
    color: white;
    border-color: #0071e3;
}

/* 响应式样式 */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
        padding: 20px 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu a {
        margin: 10px 0;
        min-width: auto;
        width: 80%;
    }

    /* 汉堡菜单动画 - 变成X形状 */
    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
}

/* 简化动画定义 - 移除不必要的动画 */
@keyframes ripple {
    0% {
        transform: scale(0.8);
        opacity: 1;
    }
    100% {
        transform: scale(2.4);
        opacity: 0;
    }
}

/* 下拉框样式 */
select {
    padding: 10px 15px;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 12px;
    margin-right: 10px;
    cursor: pointer;
    background-color: white;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

/* 加载进度样式 */
.loading-progress {
    display: block;
    font-size: 16px;
    margin-top: 10px;
    color: #333;
    animation: pulse 2s ease-in-out infinite;
}

/* 加载提示样式 */
.loading-mask {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.9);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    gap: 15px; /* 图标与文字间距 */
    animation: fadeIn 0.5s ease-out;
    backdrop-filter: blur(5px);
}

.loading-mask.show {
    display: flex;
    animation: fadeIn 0.5s ease-out;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #2196F3;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-text {
    font-size: 18px;
    color: #333;
    font-family: 'Microsoft YaHei', sans-serif;
    animation: fadeInOut 2s ease-in-out infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(1.1); }
    100% { transform: rotate(360deg) scale(1); }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

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

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

select:hover {
    border-color: #0071e3;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

/* 控制区域样式 */
.controls {
    margin: 20px 0;
    padding: 15px;
    border-radius: 12px;
    background-color: rgba(255, 255, 255, 0.5);
    opacity: 1;
    transform: translateY(0);
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 控制组样式 */
.control-group {
    margin-bottom: 15px;
}

/* 隐私说明页面目录锚点偏移样式 */
.privacy-page h2 {
    scroll-margin-top: 80px; /* 为顶部导航栏预留空间 */
}

/* 全局平滑滚动样式 */
html {
    scroll-behavior: smooth;
}

/* 复选框标签样式 */
.controls label {
    display: inline-block;
    margin: 10px 5px;
    font-weight: 500;
}

/* 滑块样式 */
.controls input[type="range"] {
    width: 100%;
    margin-top: 5px;
}

/* 按钮组样式 */
.button-group {
    margin-top: 20px;
    text-align: center;
}

.button-group button {
    position: relative;
    overflow: hidden;
    transform: translateZ(0);
}

.button-group button::after {
    content: "";
    display: block;
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background-image: radial-gradient(circle, #fff 10%, transparent 10.01%);
    background-repeat: no-repeat;
    background-position: 50%;
    transform: scale(10, 10);
    opacity: 0;
    transition: transform .5s, opacity 1s;
}

.button-group button:active::after {
    transform: scale(0, 0);
    opacity: .3;
    transition: 0s;
}

/* 提示信息样式 */
.hint {
    font-size: 12px;
    color: #666;
    margin-top: 5px;
    margin-left: 10px;
}

/* 消息提醒框样式 */
.message-box {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 15px 20px;
    background-color: #4CAF50;
    color: white;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    z-index: 1001;
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 0.3s, transform 0.3s;
    pointer-events: none;
}

.message-box.show {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.message-box.error {
    background-color: #f44336;
}

/* 隐私说明页面目录样式 */
.left-panel h2 {
    color: #1d1d1f;
    margin-bottom: 20px;
    font-weight: 600;
    font-size: 1.3em;
    text-align: center;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(0, 113, 227, 0.2);
}

.left-panel ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.left-panel ul li {
    margin-bottom: 8px;
}

.left-panel ul li a {
    display: block;
    padding: 12px 15px;
    text-decoration: none;
    color: #1d1d1f;
    border-radius: 12px;
    transition: all 0.3s ease;
    font-weight: 500;
    border: 1px solid transparent;
}

.left-panel ul li a:hover {
    background-color: rgba(0, 113, 227, 0.1);
    color: #0071e3;
    border-color: rgba(0, 113, 227, 0.2);
    transform: translateX(5px);
}

.left-panel ul li a::before {
    content: "▶";
    margin-right: 10px;
    font-size: 0.8em;
    transition: transform 0.3s ease;
}

.left-panel ul li a:hover::before {
    transform: translateX(3px);
}

/* 响应式目录样式 */
@media (max-width: 1024px) {
    .left-panel ul li a {
        padding: 10px 12px;
        font-size: 0.9em;
    }
}

@media (max-width: 768px) {
    .left-panel h2 {
        font-size: 1.2em;
        padding-bottom: 8px;
    }
    
    .left-panel ul li a {
        padding: 10px;
        font-size: 0.9em;
    }
}

/* 关于页面特有样式 */
.about-header {
    text-align: center;
    margin-bottom: 40px;
    padding: 20px;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4edf9 100%);
    border-radius: 18px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.about-header h1 {
    margin: 0;
    font-size: 2.5em;
    color: #0071e3;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

.about-header p {
    font-size: 1.2em;
    color: #666;
    margin-top: 10px;
}

.about-section {
    margin-bottom: 30px;
    padding: 25px;
    background-color: rgba(255, 255, 255, 0.7);
    border-radius: 16px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.03);
    transition: all 0.3s ease;
}

.about-section:hover {
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.08);
    transform: translateY(-3px);
}

.about-section h2 {
    color: #0071e3;
    border-bottom: 2px solid rgba(0, 113, 227, 0.2);
    padding-bottom: 10px;
    margin-top: 0;
}

.about-section p {
    line-height: 1.8;
    color: #333;
}

.version-info {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 15px;
}

.version-item {
    flex: 1;
    min-width: 200px;
    padding: 15px;
    background-color: rgba(0, 113, 227, 0.05);
    border-radius: 12px;
    text-align: center;
}

.version-item strong {
    display: block;
    color: #0071e3;
    font-size: 1.1em;
    margin-bottom: 8px;
}

.github-link {
    display: inline-block;
    padding: 12px 24px;
    background-color: #0071e3;
    color: white;
    text-decoration: none;
    border-radius: 24px;
    transition: all 0.3s ease;
    font-weight: 500;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.github-link:hover {
    background-color: #0077ed;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

.tech-support {
    text-align: center;
    padding: 20px;
    background-color: rgba(248, 249, 250, 0.7);
    border-radius: 16px;
    margin-top: 20px;
}

@media (max-width: 768px) {
    .about-header h1 {
        font-size: 2em;
    }
    
    .version-info {
        flex-direction: column;
    }
}