:root {
    --bg-color: #f7f7f7;
    --accent-color: #ffad33;
    --shutter-color: #ff3b30;
    --text-hint: #999;
}

* {
    box-sizing: border-box;
    touch-action: manipulation;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

/* 弹窗内容允许滚动 */
.modal-content,
.modal-body,
.help-modal-content {
    touch-action: pan-y !important;
}

/* 弹窗允许滚动 */
.modal,
.modal-content,
.modal-body {
    touch-action: pan-y !important;
}

body {
    margin: 0;
    height: 100vh;
    overflow: hidden;
    background-color: var(--bg-color);
    background-image: radial-gradient(#e0e0e0 1px, transparent 1px);
    background-size: 20px 20px;
    font-family: 'Roboto Mono', monospace;
}

/* ================= 相机外壳 ================= */
.camera-container {
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translateX(-50%);
    width: 95%;
    max-width: 400px;
    border-radius: 24px;
    padding: 18px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    transition: background 0.3s, color 0.3s;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* 皮肤 */
.skin-dark {
    background: #1a1a1a;
    color: #fff;
    border-top: 4px solid var(--accent-color);
}

.skin-dark .input-box {
    background: #333;
    color: #fff;
}

.skin-light {
    background: #fff;
    color: #333;
    border: 1px solid #e0e0e0;
}

.skin-light .input-box {
    background: #f5f5f5;
    color: #333;
}

.skin-light .viewfinder {
    border-color: #eee;
}

/* 品牌标（已移除，现在使用顶部导航栏的logo） */

.skin-switch {
    position: absolute;
    top: 15px;
    right: 15px;
    cursor: pointer;
    opacity: 0.6;
}

.viewfinder {
    width: 100%;
    aspect-ratio: 4 / 3;
    background: #000;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.5);
    border: 2px solid rgba(255, 255, 255, 0.1);
}

video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scaleX(-1);
}

/* 控制行 */
.settings-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: center;
    padding: 0 8px;
    gap: 16px;
}

.toggle-group {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    flex: 1;
    min-width: 0;
    justify-content: flex-start;
}

.toggle-btn {
    width: 40px;
    height: 22px;
    background: #555;
    border-radius: 11px;
    position: relative;
    transition: background 0.3s;
}

.toggle-btn::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    background: white;
    border-radius: 50%;
    transition: transform 0.3s;
}

.toggle-group.active .toggle-btn {
    background: var(--accent-color);
}

.toggle-group.active .toggle-btn::after {
    transform: translateX(18px);
}

.toggle-label {
    font-size: 13px;
    font-weight: 600;
    opacity: 0.9;
    font-family: 'Roboto Mono', 'Roboto', 'ZCOOL KuaiLe', sans-serif;
    letter-spacing: normal;
    display: inline-flex;
    align-items: center;
    line-height: 1;
}

.filters-container {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    padding: 5px 0;
}

.filter-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.5);
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s;
}

.filter-dot.active {
    border-color: #fff;
    transform: scale(1.25);
    box-shadow: 0 0 0 2px var(--accent-color);
}

.action-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 4px;
}

.input-box {
    flex: 1;
    padding: 10px;
    border-radius: 8px;
    border: none;
    font-family: 'Roboto Mono', monospace;
    font-size: 14px;
    text-align: center;
    outline: none;
}

.shutter-btn {
    width: 64px;
    height: 64px;
    flex-shrink: 0;
    border-radius: 50%;
    background: var(--shutter-color);
    border: 4px solid rgba(255, 255, 255, 0.8);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    cursor: pointer;
    transition: transform 0.1s;
}

.shutter-btn:active {
    transform: scale(0.92);
}

/* ================= 底部提示 ================= */
.footer-hint {
    position: fixed;
    bottom: 25px;
    left: 0;
    right: 0;
    text-align: center;
    color: var(--text-hint);
    font-size: 13px;
    letter-spacing: 1px;
    pointer-events: none;
    z-index: 0;
    text-shadow: 0 1px 0 rgba(255, 255, 255, 0.8);
}

/* ================= 照片 ================= */
#desk {
    position: fixed;
    inset: 0;
    z-index: 1;
}

.polaroid {
    position: absolute;
    width: 250px;
    background: #fff; /* 最外围白色边框 */
    padding: 14px 14px 90px 14px; /* 内边距形成白色边框效果 */
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    transform-origin: center;
    cursor: grab;
    transition:
        left 0.6s cubic-bezier(0.34, 1.56, 0.64, 1),
        top 0.6s cubic-bezier(0.34, 1.56, 0.64, 1),
        transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1),
        box-shadow 0.2s,
        background 0.3s;
    border-radius: 2px;
}

/* 不同相框样式的背景色 */
.polaroid[data-frame-type="classic"] {
    background: #FFFFFF;
}

.polaroid[data-frame-type="vintage"] {
    background: #FFF8DC;
}

.polaroid[data-frame-type="modern"] {
    background: #1A1A1A;
    color: #FFFFFF;
}

.polaroid[data-frame-type="pastel"] {
    background: #FFE5E5;
}

.polaroid[data-frame-type="ocean"] {
    background: #B0E0E6;
}

/* 相纸纹理效果 - 应用到整个polaroid */
.polaroid.has-paper-texture {
    position: relative;
}

.polaroid.has-paper-texture::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,0,0,0.03) 2px, rgba(0,0,0,0.03) 4px),
        repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(0,0,0,0.03) 2px, rgba(0,0,0,0.03) 4px);
    pointer-events: none;
    z-index: 1;
    opacity: 0.6;
}

.polaroid.has-paper-texture::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at center, transparent 0%, rgba(0,0,0,0.1) 100%);
    pointer-events: none;
    z-index: 1;
    opacity: 0.3;
}

.polaroid:active {
    cursor: grabbing;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.25);
    z-index: 9999 !important;
}

.photo-frame {
    width: 100%;
    aspect-ratio: 1 / 1;
    background: #fff;
    position: relative;
    overflow: hidden;
    /* 确保照片区域有白色背景，形成相框效果 */
}

.photo-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    opacity: 0;
    transition: opacity 0.5s linear;
    pointer-events: none;
}

.develop-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(20, 20, 20, 0.9);
    color: white;
    opacity: 1;
    transition: opacity 0.5s;
    pointer-events: none;
}

/* 删除按钮 */
.close-btn {
    position: absolute;
    top: -10px;
    right: -10px;
    width: 28px;
    height: 28px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.2s;
    z-index: 10;
}

.close-btn svg {
    width: 14px;
    height: 14px;
    stroke: #ff3b30;
    stroke-width: 3;
}

.polaroid:hover .close-btn {
    opacity: 1;
    transform: scale(1);
}

.p-text {
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 14px;
    height: 70px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    text-align: center;
    font-family: 'ZCOOL KuaiLe', 'Comic Sans MS', cursive;
    font-size: 24px;
    color: #333;
    pointer-events: none;
    line-height: 1.1;
}

.p-text span {
    max-width: 100%;
    word-break: break-all;
}

.p-text small {
    font-size: 14px;
    letter-spacing: 4px;
    color: rgba(0, 0, 0, 0.5);
}

#flash {
    position: fixed;
    inset: 0;
    background: #fff;
    opacity: 0;
    pointer-events: none;
    z-index: 2000;
    transition: opacity 0.1s;
}

/* ================= 顶部导航栏 ================= */
.top-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    z-index: 2001;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-img {
    width: 32px;
    height: 32px;
    object-fit: contain;
}

.logo-text {
    font-size: 18px;
    font-weight: bold;
    color: #333;
    font-family: 'ZCOOL KuaiLe', cursive;
    margin: 0;
    line-height: 1.1;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: background 0.2s;
    padding: 0;
}

.nav-btn img {
    width: 24px;
    height: 24px;
    object-fit: contain;
}

.nav-btn:hover {
    background: rgba(0, 0, 0, 0.05);
}

.lang-btn {
    font-size: 14px;
    font-weight: 500;
    color: #333;
    min-width: 40px;
}

/* ================= 摇一摇指示器 ================= */
.shake-indicator {
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 12px 24px;
    border-radius: 24px;
    font-size: 14px;
    z-index: 1000;
    transition: all 0.2s;
    font-weight: 500;
}

/* ================= 弹窗 ================= */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    padding: 20px;
}

.modal-content {
    background: white;
    border-radius: 16px;
    max-width: 500px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    overflow-x: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    -webkit-overflow-scrolling: touch;
    display: flex;
    flex-direction: column;
    touch-action: pan-y;
}

.help-modal-content {
    max-width: 500px;
    max-height: 80vh;
    width: 100%;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px;
    border-bottom: 1px solid #eee;
}

.modal-header h2 {
    margin: 0;
    font-size: 20px;
    font-weight: bold;
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    font-size: 24px;
    cursor: pointer;
    color: #999;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: background 0.2s;
}

.modal-close:hover {
    background: rgba(0, 0, 0, 0.05);
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    flex: 1;
    min-height: 0;
    touch-action: pan-y;
}

.help-section {
    margin-bottom: 24px;
}

.help-section h3 {
    margin: 0 0 12px 0;
    font-size: 16px;
    font-weight: bold;
}

.help-section p {
    margin: 8px 0;
    line-height: 1.6;
    color: #666;
}

.faq-item {
    margin: 16px 0;
}

.faq-item p {
    margin: 4px 0;
}

/* 功能列表样式 */
.feature-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.feature-item {
    padding: 12px;
    background: #f8f9fa;
    border-radius: 8px;
    border-left: 3px solid var(--accent-color);
}

.feature-item strong {
    display: block;
    font-size: 14px;
    color: #333;
    margin-bottom: 4px;
}

.feature-item p {
    margin: 0;
    font-size: 12px;
    color: #666;
    line-height: 1.5;
}

/* 二维码样式 */
.contact-qrcodes {
    display: flex;
    gap: 24px;
    justify-content: center;
    align-items: flex-start;
    flex-wrap: nowrap;
}

.qrcode-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.qrcode-img {
    width: 120px;
    height: 120px;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
    object-fit: cover;
}

.qrcode-name {
    font-size: 12px;
    color: #666;
    text-align: center;
    margin: 0;
}

/* 底部说明文字 */
.footer-note {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid #f0f0f0;
}

.footer-note-text {
    text-align: center;
    font-size: 13px;
    color: #999;
    line-height: 1.6;
    margin: 0;
    font-style: italic;
}

/* 水印样式 */
.watermark-overlay {
    position: absolute;
    bottom: 8px;
    right: 8px;
    font-size: 16px;
    color: rgba(255, 255, 255, 0.95);
    font-family: 'Roboto Mono', monospace;
    pointer-events: none;
    z-index: 10;
    letter-spacing: 0.5px;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.6);
}

.photo-frame {
    position: relative;
}

/* 次数限制弹窗 */
.limit-modal-content {
    max-width: 400px;
    width: 90%;
}

.limit-message {
    padding: 20px 0;
    text-align: center;
    font-size: 16px;
    color: #333;
    line-height: 1.6;
}

.limit-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-top: 20px;
}

.limit-btn {
    padding: 12px 32px;
    background: var(--accent-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.limit-btn:hover {
    background: #ff9800;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 173, 51, 0.3);
}

.limit-btn:active {
    transform: translateY(0);
}

.settings-section {
    margin-bottom: 24px;
}

.settings-section h3 {
    margin: 0 0 16px 0;
    font-size: 16px;
    font-weight: bold;
}

.setting-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
}

.setting-item label {
    font-size: 14px;
    color: #333;
    white-space: nowrap;
    flex-shrink: 0;
}

/* 开关样式 */
.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: 0.3s;
    border-radius: 24px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.3s;
    border-radius: 50%;
}

.switch input:checked + .slider {
    background-color: var(--accent-color);
}

.switch input:checked + .slider:before {
    transform: translateX(20px);
}

/* 相框选择器 */
.frame-selector {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: space-between;
    overflow: visible;
    padding-bottom: 4px;
}

.frame-selector::-webkit-scrollbar {
    height: 4px;
}

.frame-selector::-webkit-scrollbar-track {
    background: #f0f0f0;
    border-radius: 2px;
}

.frame-selector::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 2px;
}

.frame-option {
    width: 60px;
    height: 60px;
    border: 2px solid #ddd;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    padding: 0;
}

.frame-option:hover {
    transform: scale(1.05);
    border-color: var(--accent-color);
}

.frame-option.active {
    border-color: var(--accent-color);
    border-width: 3px;
    box-shadow: 0 0 0 2px rgba(255, 173, 51, 0.2);
}

/* 字体选择器 */
.font-selector {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    background: white;
    color: #333;
    cursor: pointer;
    outline: none;
    transition: border-color 0.2s;
}

.font-selector:hover {
    border-color: var(--accent-color);
}

.font-selector:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(255, 173, 51, 0.2);
}

/* 字体选择器网格（平铺） */
.font-selector-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    margin-top: 8px;
    overflow: visible;
    padding-bottom: 0;
}

.font-option {
    padding: 6px 8px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 11px;
    background: white;
    color: #333;
    cursor: pointer;
    outline: none;
    transition: all 0.2s;
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.font-option:hover {
    border-color: var(--accent-color);
    background: #fff9f0;
}

.font-option.active {
    border-color: var(--accent-color);
    background: var(--accent-color);
    color: white;
    font-weight: 500;
}

/* 设置项带标签 */
.setting-item-with-badge {
    display: flex;
    align-items: center;
    gap: 8px;
}

.free-badge {
    width: 60px;
    height: 20px;
    object-fit: contain;
    vertical-align: middle;
}

/* 即将上线样式 */
.setting-item.coming-soon {
    opacity: 0.6;
    cursor: not-allowed;
}

.coming-soon-text {
    font-size: 12px;
    color: #999;
    font-style: italic;
}

/* ================= 移动端照片墙 ================= */
.mobile-gallery {
    position: fixed;
    inset: 0;
    background: #000;
    z-index: 2500;
    display: flex;
    flex-direction: column;
}

.gallery-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
}

.gallery-close {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    color: white;
    font-size: 28px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.gallery-title {
    font-size: 18px;
    font-weight: bold;
}

.gallery-view-toggle {
    padding: 8px 16px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: transparent;
    color: white;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
}

.gallery-content {
    flex: 1;
    overflow: hidden;
    position: relative;
}

.card-view {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    padding-bottom: 0;
}

.card-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow-y: auto;
    padding: 20px 20px 100px 20px; /* 底部留出按钮空间 */
    -webkit-overflow-scrolling: touch;
    min-height: 0;
}

.mobile-card {
    width: 90%;
    max-width: 400px;
    background: transparent;
    border-radius: 0;
    overflow: visible;
    box-shadow: none;
    position: relative;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.card-photo {
    width: 100%;
    position: relative;
    background: transparent;
    padding: 0;
    border-radius: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.card-photo-img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 0;
    box-shadow: none;
    max-width: 100%;
}

.card-photo .watermark-overlay {
    position: absolute;
    bottom: 8px;
    right: 8px;
    font-size: 16px;
    color: rgba(255, 255, 255, 0.95);
    font-family: 'Roboto Mono', monospace;
    pointer-events: none;
    z-index: 10;
    letter-spacing: 0.5px;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.6);
}

.card-text {
    padding: 16px 12px 8px 12px;
    text-align: center;
    background: transparent;
    width: 100%;
}

.card-text span {
    display: block;
    font-size: 18px;
    margin-bottom: 4px;
    font-weight: 500;
    color: inherit;
}

.card-text small {
    display: block;
    font-size: 14px;
    opacity: 0.7;
    margin-top: 4px;
    color: inherit;
}

.card-info {
    padding: 12px;
    text-align: center;
    color: rgba(255, 255, 255, 0.9);
    font-size: 16px;
    background: transparent;
    border-radius: 0;
    margin-top: 12px;
    font-weight: 500;
}

.card-actions {
    display: flex;
    gap: 12px;
    padding: 16px;
    background: rgba(0, 0, 0, 0.95);
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 2600;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.card-action-btn {
    flex: 1;
    padding: 14px;
    border: none;
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border-radius: 8px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.2s;
    -webkit-tap-highlight-color: transparent;
}

.card-action-btn:active {
    background: rgba(255, 255, 255, 0.25);
    transform: scale(0.98);
}

.card-action-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.grid-view {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    padding: 16px;
    overflow-y: auto;
    height: 100%;
}

.grid-item {
    aspect-ratio: 1;
    overflow: hidden;
    border-radius: 8px;
    cursor: pointer;
}

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

.no-photos {
    text-align: center;
    color: #999;
    padding: 40px 20px;
    font-size: 16px;
}

.gallery-entry-btn {
    position: fixed;
    bottom: 80px;
    right: 20px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: none;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15), 
                0 4px 12px rgba(0, 0, 0, 0.1),
                0 2px 4px rgba(0, 0, 0, 0.08),
                inset 0 1px 2px rgba(255, 255, 255, 0.8),
                inset 0 -1px 2px rgba(0, 0, 0, 0.1);
    z-index: 200;
    transition: transform 0.2s, box-shadow 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    cursor: pointer;
}

.gallery-entry-btn img {
    width: 40px;
    height: 40px;
    object-fit: contain;
    pointer-events: none;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.gallery-entry-btn:active {
    transform: scale(0.95);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1), 
                0 1px 4px rgba(0, 0, 0, 0.06),
                inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

/* ================= 移动端Z轴分层架构优化 ================= */
@media (max-width: 768px) {
    /* Layer 1: 全屏取景框 */
    body {
        overflow: hidden;
        background: #000 !important; /* 移动端背景改为黑色 */
        background-image: none !important; /* 移除网格背景 */
    }
    
    #desk {
        position: fixed;
        inset: 0;
        z-index: 20; /* 照片输出层 */
        pointer-events: none;
    }
    
    .camera-container {
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw !important; /* 确保全宽 */
        height: 100vh !important; /* 确保全高 */
        max-width: 100% !important;
        border-radius: 0;
        padding: 0;
        z-index: 0; /* 底层取景框 */
        background: #000;
        display: flex;
        flex-direction: column;
        margin: 0;
        transform: none !important; /* 移除可能的transform */
        overflow: visible !important; /* 确保子元素不被裁剪 */
    }
    
    .viewfinder {
        flex: 1;
        width: 100%;
        aspect-ratio: auto;
        border-radius: 0;
        border: none;
    }
    
    .viewfinder video {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    
    /* Layer 2: 悬浮操作层 */
    .top-nav {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 10; /* 中层操作UI */
        background: rgba(0, 0, 0, 0.7);
        backdrop-filter: blur(10px);
        height: 50px;
        padding: 0 12px;
    }
    
    .top-nav .logo-text,
    .top-nav .nav-btn {
        color: #fff !important;
        text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
    }
    
    .camera-container .settings-row {
        position: fixed !important;
        bottom: 92px !important;
        left: 0 !important;
        right: 0 !important;
        width: 100vw !important;
        z-index: 998 !important;
        background: rgba(0, 0, 0, 0.7) !important;
        backdrop-filter: blur(10px) !important;
        padding: 4px 12px !important;
        margin: 0 !important;
        border-radius: 0 !important;
        overflow: visible !important;
        clip: unset !important;
        clip-path: none !important;
        box-sizing: border-box !important;
        display: flex !important;
        justify-content: space-between !important;
        align-items: center !important;
        gap: 8px !important;
        height: 32px !important;
    }
    
    .camera-container .filters-container {
        position: fixed !important;
        bottom: 60px !important;
        left: 0 !important;
        right: 0 !important;
        width: 100vw !important;
        z-index: 999 !important;
        background: rgba(0, 0, 0, 0.7) !important;
        backdrop-filter: blur(10px) !important;
        padding: 4px 12px !important;
        margin: 0 !important;
        border-radius: 0 !important;
        overflow: visible !important;
        clip: unset !important;
        clip-path: none !important;
        box-sizing: border-box !important;
        height: 32px !important;
        min-height: 32px !important;
    }
    
    .camera-container .toggle-group {
        flex: 0 0 auto !important;
        min-width: 0 !important;
        display: flex !important;
        align-items: center !重要;
        justify-content: flex-start !important;
        gap: 4px !important;
        padding: 0 !important;
        margin: 0 !important;
        overflow: visible !important;
        white-space: nowrap !important;
        flex-wrap: nowrap !important;
        height: 20px !important;
    }
    
    .camera-container .toggle-btn {
        flex-shrink: 0 !important;
        display: flex !important;
        align-items: center !important;
        justify-content: flex-start !important;
        margin: 0 !important;
        padding: 0 !important;
    }
    
    .camera-container .toggle-btn {
        width: 32px !important;
        height: 18px !important;
        flex-shrink: 0 !important;
        position: relative !important;
    }
    
    .camera-container .toggle-btn::after {
        content: '' !important;
        position: absolute !important;
        top: 2px !important;
        left: 2px !important;
        width: 14px !important;
        height: 14px !important;
        background: white !important;
        border-radius: 50% !important;
        transition: transform 0.3s !important;
    }
    
    .camera-container .toggle-group.active .toggle-btn::after {
        transform: translateX(14px) !important;
    }
    
    .camera-container .toggle-label {
        font-size: 12px !important;
        white-space: nowrap !important;
        overflow: visible !important;
        text-overflow: clip !important;
        flex-shrink: 0 !important;
        height: 20px !important;
        line-height: 1 !important;
        display: inline-flex !important;
        align-items: center !important;
        margin: 0 !important;
        padding: 0 !important;
    }
    
    .camera-container .filters-container {
        display: flex !important;
        justify-content: center !important;
        flex-wrap: wrap !important;
        gap: 6px !important;
        overflow-x: visible !important;
        overflow-y: visible !important;
        max-width: 100vw !important;
        box-sizing: border-box !important;
        height: auto !important;
        min-height: 32px !important;
    }
    
    .camera-container .filter-dot {
        width: 22px !important;
        height: 22px !important;
        flex-shrink: 0 !important;
        min-width: 22px !important;
    }
    
    .camera-container .action-row {
        position: fixed !important;
        bottom: 0 !important;
        left: 0 !important;
        right: 0 !important;
        width: 100vw !important;
        max-width: 100vw !important;
        z-index: 1000 !important;
        background: rgba(0, 0, 0, 0.5) !important;
        backdrop-filter: blur(10px) !important;
        padding-top: 4px !important;
        padding-left: 12px !important;
        padding-right: 12px !important;
        padding-bottom: max(8px, env(safe-area-inset-bottom)) !important;
        margin: 0 !important;
        border-radius: 0 !important;
        box-sizing: border-box !important;
        display: flex !important;
        flex-direction: row !important;
        align-items: center !important;
        justify-content: flex-start !important;
        gap: 8px !important;
        overflow: visible !important;
        clip: unset !important;
        clip-path: none !important;
        height: 60px !important;
        max-height: 60px !important;
    }
    
    .camera-container .input-box {
        margin: 0 !important;
        flex: 1 1 auto !important;
        min-width: 90px !important;
        width: auto !important;
        max-width: calc(100vw - 14px - 8px - 56px - 14px) !important;
        padding: 6px 10px !important;
        border-radius: 6px !important;
        border: none !important;
        font-size: 12px !important;
        text-align: center !important;
        box-sizing: border-box !important;
        overflow: visible !important;
        flex-shrink: 1 !important;
    }
    
    .camera-container .shutter-btn {
        flex: 0 0 52px !important;
        width: 52px !important;
        height: 52px !important;
        min-width: 52px !important;
        max-width: 52px !important;
        margin: 0 !important;
        flex-shrink: 0 !important;
        box-sizing: border-box !important;
        overflow: visible !important;
        border-width: 2.5px !important;
    }
    
    .shutter-btn {
        width: 72px;
        height: 72px;
        margin: 0 auto;
        border: 4px solid rgba(255, 255, 255, 0.8);
        box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.2);
    }
    
    .footer-hint {
        display: none; /* 移动端隐藏底部提示 */
    }
    
    /* 移动端设置页：相框选择器增大尺寸 */
    .frame-selector {
        display: grid !important;
        grid-template-columns: repeat(5, minmax(32px, 1fr)) !important;
        gap: 4px !important;
        overflow: visible !important;
        padding: 4px 0 !important;
        width: 100% !important;
    }
    
    .frame-option {
        width: 100% !important;
        min-width: 0 !important;
        height: 34px !important;
        aspect-ratio: 1 !important;
        flex-shrink: 0;
        padding: 0 !important;
    }
    
    .font-selector-grid {
        display: grid !important;
        grid-template-columns: repeat(4, 1fr) !important;
        gap: 6px !important;
        overflow: visible !important;
    }
    
    .font-option {
        padding: 6px 4px !important;
        font-size: 11px !important;
        width: 100% !important;
    }
    
    .setting-item {
        padding: 10px 0 !important;
    }
    
    .setting-item label {
        font-size: 13px !important;
        white-space: nowrap !important;
        overflow: hidden !important;
        text-overflow: ellipsis !important;
    }
    
    /* Layer 3: 照片输出层 - 从底部滑出 */
    .polaroid {
        width: 80vw;
        max-width: 320px;
        position: fixed;
        left: 50%;
        top: 50%;
        transform: translate(-50%, 120vh) rotate(5deg);
        z-index: 20;
        pointer-events: auto;
        transition: transform 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    }
    
    .polaroid.ejected {
        transform: translate(-50%, -50%) rotate(-2deg);
    }
    
    /* 照片可以下滑收起 */
    .polaroid.swiping {
        transition: none;
    }
    
    /* 移动端浮动按钮图标放大 */
    .gallery-entry-btn img {
        width: 48px !important;
        height: 48px !important;
    }
    
    /* 移动端弹窗滚动优化 */
    .modal {
        touch-action: pan-y !important;
        overflow-y: auto !important;
        -webkit-overflow-scrolling: touch !important;
    }
    
    .modal-content {
        max-height: 90vh !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
        -webkit-overflow-scrolling: touch !important;
        touch-action: pan-y !important;
        overscroll-behavior: contain !important;
        position: relative !important;
    }
    
    .modal-header {
        flex-shrink: 0 !important;
        touch-action: none !important;
    }
    
    .modal-body {
        overflow-y: auto !important;
        overflow-x: hidden !important;
        -webkit-overflow-scrolling: touch !important;
        touch-action: pan-y !important;
        max-height: calc(90vh - 80px) !important;
        overscroll-behavior: contain !important;
        flex: 1 !important;
        min-height: 0 !important;
    }
    
    .help-modal-content {
        touch-action: pan-y !important;
        overscroll-behavior: contain !important;
        width: 100% !important;
        max-width: 500px !important;
    }
    
    .help-section,
    .feature-list,
    .feature-item,
    .contact-qrcodes,
    .qrcode-item {
        touch-action: pan-y !important;
    }
}

/* 盲盒照片样式 */
.mystery-polaroid {
    background: #1a1a1a !important;
}

.mystery-card {
    width: 100%;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #1a1a1a;
    border-radius: 4px;
    position: relative;
    overflow: hidden;
}

.mystery-cover {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2d2d2d 0%, #1a1a1a 100%);
    color: white;
    cursor: pointer;
    transition: all 0.3s;
}

.mystery-cover:hover {
    background: linear-gradient(135deg, #3d3d3d 0%, #2a2a2a 100%);
    transform: scale(1.02);
}

.mystery-icon {
    font-size: 48px;
    margin-bottom: 12px;
}

.mystery-locked {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2d2d2d 0%, #1a1a1a 100%);
    color: #999;
}

.mystery-locked .mystery-icon {
    font-size: 48px;
    margin-bottom: 12px;
    opacity: 0.6;
}

.mystery-card.revealed img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.mystery-reveal-overlay {
    animation: fadeIn 0.3s ease-in;
}

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

/* 桌面端隐藏移动端功能 */
@media (min-width: 769px) {
    .mobile-gallery,
    .gallery-entry-btn {
        display: none !important;
    }
}