/* css/style.css */
/* ==========================================================================
   通用样式 & 页面布局
   ========================================================================== */
.em-page-container { max-width: 1200px; margin: 2em auto; padding: 0 15px; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif; }
.em-wall-main-header { display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-bottom: 2.5em; }
.em-page-header { text-align: left; margin-bottom: 0; }
.em-page-title { font-size: 2.5em; margin-bottom: 0.2em; color: #2c3e50; }
.em-page-subtitle { font-size: 1.1em; color: #7f8c8d; max-width: 600px; margin: 0; }
.em-page-nav { text-align: right; margin-bottom: 0; flex-shrink: 0; }
.em-nav-button { display: inline-flex; align-items: center; gap: 8px; background-color: #f0f0f1; color: #3c434a; padding: 10px 18px; border: none; border-radius: 6px; text-decoration: none; font-weight: 600; transition: all 0.2s ease-in-out; cursor: pointer; }
.em-nav-button:hover { background-color: #e0e0e1; color: #1d2327; transform: translateY(-2px); box-shadow: 0 4px 10px rgba(0,0,0,0.08); }
/* ==========================================================================
   上传页面样式
   ========================================================================== */
#em-upload-area { border: 3px dashed #bdc3c7; border-radius: 15px; padding: 3em; text-align: center; background-color: #f8f9fa; transition: all 0.3s ease; cursor: pointer; }
#em-upload-area.dragover { border-color: #3498db; background-color: #f0f8ff; }
.em-upload-icon { font-size: 3em; display: block; margin-bottom: 0.5em; }
#em-upload-area h3 { margin: 0 0 0.5em 0; color: #2c3e50; font-size: 1.5em; }
#em-upload-area p { color: #7f8c8d; margin-top: 0; }
.em-file-browse-button { display: inline-block; padding: 10px 20px; background-color: #3498db; color: #fff; border-radius: 5px; cursor: pointer; font-weight: bold; margin-top: 1em; transition: background-color 0.3s; }
.em-file-browse-button:hover { background-color: #2980b9; }
#em-file-input { display: none; }
#em-preview-area { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px; margin-top: 2em; }
.em-preview-card { background: #fff; border: 1px solid #e1e1e1; border-radius: 8px; box-shadow: 0 4px 12px rgba(0,0,0,0.05); overflow: hidden; transition: transform 0.2s, box-shadow 0.2s; }
.em-preview-card:hover { transform: translateY(-5px); box-shadow: 0 6px 16px rgba(0,0,0,0.1); }
.em-preview-card-image img { width: 100%; height: 200px; object-fit: cover; display: block; }
.em-preview-card-content { padding: 20px; display: flex; flex-wrap: wrap; gap: 15px; }
.em-form-group { flex: 1 1 45%; display: flex; flex-direction: column; }
.em-form-group.full-width { flex-basis: 100%; }
.em-form-group label { font-weight: 600; margin-bottom: 8px; font-size: 0.9em; color: #34495e; }
.em-form-group input, .em-form-group select, .em-form-group textarea { width: 100%; padding: 10px; border: 1px solid #bdc3c7; border-radius: 4px; box-sizing: border-box; transition: border-color 0.3s; }
.em-form-group input:focus, .em-form-group select:focus, .em-form-group textarea:focus { outline: none; border-color: #3498db; box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2); }
.em-form-group input.error, .em-form-group select.error, .em-form-group textarea.error { border-color: #e74c3c; }
#em-form-actions { text-align: center; margin-top: 2em; padding-top: 2em; border-top: 1px solid #ecf0f1; }
.em-submit-button { background-color: #27ae60; color: #fff; border: none; padding: 15px 35px; font-size: 1.2em; font-weight: bold; border-radius: 5px; cursor: pointer; transition: all 0.3s; display: inline-flex; align-items: center; gap: 10px; }
.em-submit-button:hover:not(:disabled) { background-color: #229954; transform: scale(1.05); }
.em-submit-button:disabled { background-color: #95a5a6; cursor: not-allowed; transform: none; }
.em-submit-button.is-loading .dashicons { animation: spin 1s linear infinite; }
@keyframes spin { 100% { transform:rotate(360deg); } }
#em-progress-bar-container { width: 100%; max-width: 500px; margin: 1.5em auto 0; background-color: #ecf0f1; border-radius: 20px; height: 20px; overflow: hidden; display: block; }
#em-progress-bar { width: 0%; height: 100%; background-color: #27ae60; border-radius: 20px; transition: width 0.4s ease; color: white; text-align: center; font-size: 12px; line-height: 20px; }
#em-form-feedback { margin-top: 1em; padding: 15px; border-radius: 5px; font-weight: 500; display: block; }
.em-feedback-success { background-color: #e8f8f5; color: #1abc9c; border: 1px solid #a3e9db; }
.em-feedback-error { background-color: #fdedec; color: #e74c3c; border: 1px solid #f5b7b1; }
/* ==========================================================================
   照片墙展示页样式
   ========================================================================== */
#em-wall-category-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 20px; }
.em-wall-category-card { display: flex; justify-content: space-between; align-items: center; width: 100%; padding: 15px 20px; font-size: 1.1em; font-weight: 600; text-align: left; color: #fff; background: linear-gradient(90deg, #0a3d62, #1e3799); border: none; border-radius: 8px; cursor: pointer; transition: all 0.3s ease; box-shadow: 0 4px 15px rgba(20, 48, 119, 0.2); }
.em-wall-category-card:hover { transform: translateY(-3px); box-shadow: 0 6px 20px rgba(20, 48, 119, 0.3); }
.em-card-icon { transition: transform 0.3s ease-in-out; }
.em-wall-category-group.is-open .em-card-icon { transform: rotate(180deg); }
.em-wall-day-options { display: none; padding: 15px; margin-top: -8px; background-color: #f0f3f7; border-radius: 0 0 8px 8px; display: flex; flex-wrap: wrap; gap: 12px; position: relative; z-index: 10; }
.em-wall-day-selector { flex-grow: 1; padding: 10px 15px; font-size: 0.95em; font-weight: 500; color: #2c3e50; background-color: #fff; border: 2px solid transparent; border-radius: 6px; cursor: pointer; transition: all 0.2s ease; box-shadow: 0 2px 5px rgba(0,0,0,0.05); }
.em-wall-day-selector:hover { border-color: #4a69bd; color: #4a69bd; }

#em-wall-grid-loader { text-align: center; padding: 4em 0; color: #7f8c8d; }
#em-wall-grid-loader.em-loader-hidden { display: none; }
.em-spinner { display: inline-block; width: 50px; height: 50px; border: 5px solid #ecf0f1; border-top-color: #3498db; border-radius: 50%; animation: spin 1s linear infinite; margin-bottom: 1em; }
#em-wall-grid { position: relative; min-height: 200px; width: 100%; column-gap: 20px; }
.em-wall-grid-item { 
    position: absolute; 
    width: 100%; 
    border-radius: 8px; 
    overflow: hidden; 
    box-shadow: 0 4px 15px rgba(0,0,0,0.08); 
    transition: transform 0.3s, box-shadow 0.3s, opacity 0.4s ease; /* 添加 opacity 过渡 */
    background-color: #f8f9fa; 
    margin-bottom: 20px; 
    break-inside: avoid;
    
    /* 新增：默认透明，防止重叠样式被用户看到 */
    opacity: 0; 
    visibility: hidden; 
}
.em-wall-grid-item.is-loaded {
    opacity: 1;
    visibility: visible;
}
.em-wall-caption { padding: 15px; font-size: 0.9em; color: #34495e; line-height: 1.5; background-color: #fff; }
.em-wall-notice { border: 3px solid #e1e1e1; padding: 3em; text-align: center; color: #95a5a6; border-radius: 10px; background-color: #fdfdfd; }
.em-wall-notice.em-feedback-error { border-color: #f5b7b1; background-color: #fdedec; color: #e74c3c; }
.em-wall-notice p { margin: 0; font-size: 1.1em; }

/* ==========================================================================
   展会详情页头图样式 (v6.3) - 新增
   ========================================================================== */
.em-wall-detail-hero {
    position: relative; padding: 3em 2em; margin-bottom: 1em; border-radius: 12px;
    background: linear-gradient(135deg, #4a69bd, #1e3799);
    color: #fff; text-align: center; overflow: hidden;
}
.em-wall-detail-hero.has-image { padding: 5em 2em; }
.em-wall-detail-hero-bg {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background-size: cover; background-position: center;
    transition: transform 0.4s ease-out; z-index: 1;
}
.em-wall-detail-hero.has-image .em-wall-detail-hero-bg { filter: brightness(0.6) blur(2px); }
.em-wall-detail-hero:hover .em-wall-detail-hero-bg { transform: scale(1.05); }
.em-wall-detail-hero-content { position: relative; z-index: 2; }
.em-wall-detail-hero .em-wall-detail-title {
    font-size: 2.5em; margin: 0 0 0.2em 0; color: #fff;
    text-shadow: 0 2px 8px rgba(0,0,0,0.5); text-align: center;
}
.em-wall-detail-hero .em-wall-detail-meta {
    font-size: 1.1em; margin: 0; color: #f1f1f1; opacity: 0.9;
    text-shadow: 0 1px 4px rgba(0,0,0,0.4);
}
.em-wall-detail-actions {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 2em; gap: 15px; padding: 0.5em 0; border-bottom: 1px solid #ecf0f1;
}
.em-wall-info-toggle {
    background-color: transparent; border: 1px solid #dcdcdc; color: #555;
    padding: 8px 15px; border-radius: 6px; cursor: pointer;
    transition: all 0.2s ease-in-out; display: inline-flex;
    align-items: center; gap: 8px; font-weight: 600;
}
.em-wall-info-toggle:hover { background-color: #f0f0f1; border-color: #ccc; }
.em-wall-info-toggle .dashicons { transition: transform 0.3s ease; }
.em-wall-info-toggle.is-open .dashicons { transform: rotate(180deg); }
.em-wall-detail-info {
    display: none; padding: 2em; margin-top: -2em; margin-bottom: 2.5em;
    background-color: #f8f9fa; border: 1px solid #e9ecef; border-top: none;
    border-radius: 0 0 8px 8px; line-height: 1.7; color: #343a40;
}
.em-wall-detail-info p:first-child { margin-top: 0; }
.em-wall-detail-info p:last-child { margin-bottom: 0; }
.em-wall-back-button {
    display: inline-flex; align-items: center; gap: 8px;
    background-color: #f0f0f1; color: #3c434a; padding: 10px 18px;
    border: none; border-radius: 6px; text-decoration: none;
    font-weight: 600; cursor: pointer; transition: all 0.2s ease-in-out; flex-shrink: 0;
}
.em-wall-back-button:hover { background-color: #e0e0e1; color: #1d2327; }

/* ==========================================================================
   Fancybox & Share Panel Styles
   ========================================================================== */
.fancybox__caption { text-align: center; background: rgba(0,0,0,0.7); padding: 15px; font-size: 1.1em; }
.f-button > svg { width: 20px; height: 20px; fill: currentColor; vertical-align: middle; }
.em-share-panel { display: none; font-family: inherit; padding: 0; max-width: 420px; }
.fancybox__content > .em-share-panel { padding: 0; background: transparent; border-radius: 8px; overflow: hidden; }
.em-share-header { padding: 20px 25px 15px; text-align: left; background-color: #fff; }
.em-share-header h3 { margin: 0; font-size: 1.5em; color: #2c3e50; font-weight: 600; }
.em-share-url { display: flex; padding: 0 25px 20px; background-color: #fff; }
.em-share-url input[type="text"] { flex-grow: 1; padding: 12px; border: 1px solid #bdc3c7; border-radius: 6px 0 0 6px; font-size: 1em; background-color: #f8f9fa; box-shadow: none; transition: border-color 0.3s; }
.em-share-url input[type="text"]:focus { outline: none; border-color: #3498db; }
.em-copy-url { padding: 0 18px; border: 1px solid #3498db; background: #3498db; color: white; border-radius: 0 6px 6px 0; cursor: pointer; font-weight: 600; transition: all 0.2s; }
.em-copy-url:hover { background: #2980b9; border-color: #2980b9; }
.em-share-feedback { display: none; text-align: center; font-size: 0.9em; color: #27ae60; margin: -10px 25px 15px; background-color: #fff; padding-top: 5px; }
.em-share-buttons { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; padding: 20px 25px; background-color: #f8f9fa; border-top: 1px solid #ecf0f1; }
.em-share-option { display: flex; align-items: center; justify-content: center; gap: 10px; padding: 12px; border-radius: 6px; font-weight: 600; cursor: pointer; background-color: #fff; border: 1px solid #e1e1e1; color: #34495e; transition: all 0.2s ease-in-out; }
.em-share-option:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.08); border-color: #3498db; color: #3498db; }
.em-share-option .dashicons { font-size: 1.3em; }
.em-wechat-tip { display: none; max-width: 380px; font-family: inherit; }
.fancybox__content > .em-wechat-tip { padding: 0; background: #fff; border-radius: 8px; overflow: hidden; }
.em-wechat-header { padding: 20px 25px; background-color: #f8f9fa; border-bottom: 1px solid #ecf0f1; }
.em-wechat-header h3 { margin: 0; font-size: 1.5em; color: #2c3e50; font-weight: 600; text-align: center; }
.em-wechat-qrcode { padding: 25px; text-align: center; background: #fff; }
.em-wechat-qrcode img { width: 200px; height: 200px; display: block; margin: 0 auto; }
.em-wechat-instruction { padding: 15px 25px 25px; background: #fff; text-align: center; }
.em-wechat-instruction p { margin: 0; line-height: 1.6; font-size: 1.1em; color: #34495e; }
.fancybox__poster-view.fancybox__container { background: rgba(24, 26, 29, 0.85); }
.fancybox__poster-view .fancybox__slide { padding: 1rem; }
.fancybox__poster-view .fancybox__content { background: transparent; box-shadow: none; padding: 0; max-width: 380px; width: 100%; margin: auto; transform: none; }
.em-poster-panel { font-family: inherit; width: 100%; background-color: transparent; }
.em-poster-loading { padding: 4em 2em; text-align: center; color: #7f8c8d; background: #fff; border-radius: 16px; }
.em-poster-loading .em-spinner { margin-bottom: 1em; }
.em-poster-content { padding: 0; text-align: center; box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2); border-radius: 16px; overflow: hidden; }
#em-poster-canvas { width: 100%; height: auto; display: block; }
.em-poster-download-button { display: inline-flex; align-items: center; justify-content: center; gap: 10px; width: 100%; margin-top: 1.5rem; background: #3498db; color: #fff; border: none; padding: 14px 30px; font-size: 1.1em; font-weight: bold; border-radius: 8px; cursor: pointer; text-decoration: none; transition: all 0.3s; box-shadow: 0 4px 15px rgba(52, 152, 219, 0.4); }
.em-poster-download-button:hover { background: #2980b9; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(52, 152, 219, 0.5); }
@media (max-width: 768px) {
    .em-wall-main-header { flex-direction: column-reverse; align-items: flex-end; gap: 1.5em; }
    .em-wall-main-header .em-page-header { display: none; }
    .fancybox__poster-view .fancybox__slide { padding: 1rem; }
    .em-wall-detail-hero { padding: 3em 1.5em; }
    .em-wall-detail-hero.has-image { padding: 4em 1.5em; }
    .em-wall-detail-hero .em-wall-detail-title { font-size: 2.2em; }
    .em-wall-detail-hero .em-wall-detail-meta { font-size: 1.1em; }
    .em-wall-detail-actions { flex-direction: column; align-items: stretch; }
}
.em-wall-disclaimer { max-width: 800px; margin: 4em auto 2em auto; padding-top: 2em; border-top: 1px solid #ecf0f1; text-align: center; font-size: 0.9em; color: #95a5a6; line-height: 1.6; }
.em-wall-disclaimer strong { color: #7f8c8d; }
.em-wall-disclaimer a { color: #3498db; text-decoration: none; font-weight: 600; }
.em-wall-disclaimer a:hover { text-decoration: underline; }

/* ==========================================================================
   Day Switcher Styles (v6.4) - 新增
   ========================================================================== */
.em-wall-day-switcher {
    flex-grow: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    overflow-x: auto;
    padding: 4px 0;
}
.em-wall-day-switch-button {
    flex-shrink: 0;
    padding: 8px 16px;
    font-size: 0.9em;
    font-weight: 600;
    color: #555;
    background-color: #f0f3f7;
    border: 1px solid #dcdcdc;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    white-space: nowrap;
}
.em-wall-day-switch-button:hover {
    background-color: #e4e8ec;
    border-color: #ccc;
    transform: translateY(-1px);
}
.em-wall-day-switch-button.is-current {
    background: linear-gradient(90deg, #0a3d62, #1e3799);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 2px 8px rgba(20, 48, 119, 0.3);
    transform: translateY(0);
}

/* ==========================================================================
   Dark Theme Styles
   ========================================================================== */
.dark-theme {
    --em-dark-bg-primary: #1e1e1e;
    --em-dark-bg-secondary: #2c2c2c;
    --em-dark-bg-tertiary: #3a3a3a;
    --em-dark-text-primary: #e0e0e0;
    --em-dark-text-secondary: #a0a0a0;
    --em-dark-border-primary: #444444;
    --em-dark-border-secondary: #555555;
    --em-dark-accent-hover: #4ea8e1;
    --em-dark-shadow-light: rgba(255, 255, 255, 0.08);
}

/* --- General & Layout --- */
.dark-theme .em-page-title { color: var(--em-dark-text-primary); }
.dark-theme .em-page-subtitle { color: var(--em-dark-text-secondary); }
.dark-theme .em-nav-button,
.dark-theme .em-wall-back-button { background-color: var(--em-dark-bg-tertiary); color: var(--em-dark-text-primary); }
.dark-theme .em-nav-button:hover,
.dark-theme .em-wall-back-button:hover { background-color: #4a4a4a; color: #fff; box-shadow: 0 4px 10px var(--em-dark-shadow-light); }
.dark-theme .em-wall-disclaimer { border-top-color: var(--em-dark-border-primary); color: #888; }
.dark-theme .em-wall-disclaimer strong { color: var(--em-dark-text-secondary); }
.dark-theme .em-wall-disclaimer a:hover { color: var(--em-dark-accent-hover); }

/* --- Uploader Page --- */
.dark-theme #em-upload-area { border-color: var(--em-dark-border-secondary); background-color: var(--em-dark-bg-secondary); }
.dark-theme #em-upload-area.dragover { border-color: var(--em-dark-accent-hover); background-color: #2c3a47; }
.dark-theme #em-upload-area h3 { color: var(--em-dark-text-primary); }
.dark-theme #em-upload-area p { color: var(--em-dark-text-secondary); }
.dark-theme .em-preview-card { background: var(--em-dark-bg-secondary); border-color: var(--em-dark-border-primary); box-shadow: 0 4px 12px rgba(0,0,0,0.2); }
.dark-theme .em-preview-card:hover { box-shadow: 0 6px 16px rgba(0,0,0,0.3); }
.dark-theme .em-form-group label { color: var(--em-dark-text-secondary); }
.dark-theme .em-form-group input, 
.dark-theme .em-form-group select, 
.dark-theme .em-form-group textarea { 
    background-color: var(--em-dark-bg-tertiary);
    border-color: var(--em-dark-border-secondary);
    color: var(--em-dark-text-primary);
    color-scheme: dark; /* Helps browser style dropdowns etc. */
}
.dark-theme .em-form-group input:focus, 
.dark-theme .em-form-group select:focus, 
.dark-theme .em-form-group textarea:focus { border-color: var(--em-dark-accent-hover); box-shadow: 0 0 0 2px rgba(78, 168, 225, 0.2); }
.dark-theme #em-form-actions { border-top-color: var(--em-dark-border-primary); }
.dark-theme #em-progress-bar-container { background-color: var(--em-dark-bg-tertiary); }
.dark-theme .em-feedback-success { background-color: #1c3a33; color: #2ecc71; border-color: #27ae60; }
.dark-theme .em-feedback-error { background-color: #3e272a; color: #ff5252; border-color: #e74c3c; }

/* --- Photo Wall Page --- */
.dark-theme .em-wall-day-options { background-color: var(--em-dark-bg-primary); }
.dark-theme .em-wall-day-selector { background-color: var(--em-dark-bg-tertiary); color: var(--em-dark-text-primary); box-shadow: none; border-color: var(--em-dark-border-primary); }
.dark-theme .em-wall-day-selector:hover { border-color: var(--em-dark-accent-hover); color: var(--em-dark-accent-hover); }
.dark-theme #em-wall-grid-loader { color: var(--em-dark-text-secondary); }
.dark-theme .em-spinner { border-color: var(--em-dark-bg-tertiary); border-top-color: #3498db; }
.dark-theme .em-wall-grid-item { background-color: var(--em-dark-bg-secondary); box-shadow: 0 4px 15px rgba(0,0,0,0.2); }
.dark-theme .em-wall-caption { background-color: var(--em-dark-bg-secondary); color: var(--em-dark-text-primary); }
.dark-theme .em-wall-notice { border-color: var(--em-dark-border-secondary); background-color: var(--em-dark-bg-secondary); color: var(--em-dark-text-secondary); }
.dark-theme .em-wall-notice.em-feedback-error { background-color: #3e272a; color: #ff5252; border-color: #e74c3c; }

/* --- Detail View --- */
.dark-theme .em-wall-detail-actions { border-bottom-color: var(--em-dark-border-primary); }
.dark-theme .em-wall-info-toggle { border-color: var(--em-dark-border-secondary); color: var(--em-dark-text-secondary); }
.dark-theme .em-wall-info-toggle:hover { background-color: var(--em-dark-bg-tertiary); border-color: #666; }
.dark-theme .em-wall-detail-info { background-color: var(--em-dark-bg-secondary); border-color: var(--em-dark-border-primary); color: var(--em-dark-text-primary); }
.dark-theme .em-wall-day-switch-button { background-color: var(--em-dark-bg-tertiary); color: var(--em-dark-text-primary); border-color: var(--em-dark-border-secondary); }
.dark-theme .em-wall-day-switch-button:hover { background-color: #4a4a4a; border-color: #666; }
.dark-theme .em-wall-day-switch-button.is-current { color: #fff; border-color: transparent; }

/* --- Fancybox & Share Panel --- */
.dark-theme .fancybox__caption { background: rgba(0,0,0,0.85); color: var(--em-dark-text-primary); }
.dark-theme .em-share-header,
.dark-theme .em-share-url,
.dark-theme .em-share-feedback { background-color: var(--em-dark-bg-secondary); }
.dark-theme .em-share-header h3 { color: var(--em-dark-text-primary); }
.dark-theme .em-share-url input[type="text"] { background-color: var(--em-dark-bg-primary); border-color: var(--em-dark-border-secondary); color: var(--em-dark-text-primary); }
.dark-theme .em-share-url input[type="text"]:focus { border-color: var(--em-dark-accent-hover); }
.dark-theme .em-share-buttons { background-color: var(--em-dark-bg-primary); border-top-color: var(--em-dark-border-primary); }
.dark-theme .em-share-option { background-color: var(--em-dark-bg-tertiary); border-color: var(--em-dark-border-secondary); color: var(--em-dark-text-primary); }
.dark-theme .em-share-option:hover { border-color: var(--em-dark-accent-hover); color: var(--em-dark-accent-hover); background-color: #4a4a4a; box-shadow: 0 4px 12px rgba(0,0,0,0.2); }
.dark-theme .fancybox__content > .em-wechat-tip,
.dark-theme .em-wechat-qrcode,
.dark-theme .em-wechat-instruction { background-color: var(--em-dark-bg-secondary); }
.dark-theme .em-wechat-header { background-color: var(--em-dark-bg-primary); border-bottom-color: var(--em-dark-border-primary); }
.dark-theme .em-wechat-header h3 { color: var(--em-dark-text-primary); }
.dark-theme .em-wechat-instruction p { color: var(--em-dark-text-primary); }
.dark-theme .em-wechat-qrcode img { border-radius: 8px; }
.dark-theme .em-poster-loading { background: var(--em-dark-bg-secondary); color: var(--em-dark-text-secondary); }