/* ==========================================
   1. 全局颜色配置 (含深浅色模式)
========================================== */
:root {
    --bg-color: #f7f7f7;
    --text-color: #333333;
    --title-color: #000000;
    --date-color: #999999;
    --line-color: #eaeaea;
    --mask-bg: rgba(247, 247, 247, 0.85);
    --card-bg: #ffffff;
}

body.dark-mode {
    --bg-color: #1a1a1a;
    --text-color: #cccccc;
    --title-color: #ffffff;
    --date-color: #777777;
    --line-color: #333333;
    --mask-bg: rgba(26, 26, 26, 0.85); 
    --card-bg: #222222;
}

/* ==========================================
   2. 基础排版
========================================== */
html { 
    scroll-behavior: smooth; 
}

body { 
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif; 
    background-color: var(--bg-color); 
    color: var(--text-color); 
    margin: 0; 
    padding: 20px 20px 4vh; 
    box-sizing: border-box; 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    justify-content: flex-start; 
    transition: background-color 0.3s, color 0.3s; 
    min-height: 100vh; 
    min-height: 100dvh;
}

#main-content, #admin-panel {
    width: 100%;
    max-width: 800px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    transition: max-width 0.3s ease;
}

#main-content:has(#album-view.active) {
    max-width: 1050px;
}

/* ==========================================
   3. 全局预加载屏与下拉刷新
========================================== */
.loading-screen { 
    position: fixed; 
    inset: 0; 
    z-index: 9999; 
    background-color: var(--bg-color); 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    justify-content: center; 
    transition: opacity 0.4s ease; 
}

.spinner { 
    width: 40px; 
    height: 40px; 
    border: 4px solid var(--line-color); 
    border-top: 4px solid #0066cc; 
    border-radius: 50%; 
    animation: spin 1s linear infinite; 
}

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

.ptr-indicator {
    width: 100%;
    padding: 8px 0;
    text-align: center;
    font-size: 13px;
    color: var(--date-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all 0.2s ease;
    margin-bottom: 5px;
}

/* ==========================================
   4. 时间轴主干与吸顶标题 (含刘海屏安全区适配)
========================================== */
.header { 
    width: 100%; 
    max-width: 800px; 
    text-align: left; 
    box-sizing: border-box;
    margin-top: 60px;
    margin-bottom: 15px;
} 

.header h1 {
    font-size: 28px;
    margin: 0 0 6px 0;
    color: var(--title-color);
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.header p {
    margin: 0;
    font-size: 15px;
    color: var(--date-color);
    line-height: 1.5;
}

.timeline { 
    position: relative; 
    padding-left: 20px; 
    transform: none !important; 
    width: 100%; 
    max-width: 800px; 
    text-align: left; 
    box-sizing: border-box;
}

.timeline::before { 
    content: ''; 
    position: absolute; 
    top: 40px; 
    bottom: 0; 
    left: 0; 
    width: 2px; 
    background-color: var(--line-color); 
    z-index: 0; 
}

.year-marker, .month-marker { 
    position: sticky; 
    display: block; 
    backdrop-filter: blur(10px); 
    -webkit-backdrop-filter: blur(10px); 
    box-sizing: border-box; 
    width: calc(100% + 20px); 
    background: var(--bg-color); 
    font-weight: bold; 
    scroll-margin-top: 100px; 
}

.year-marker { 
    top: 0; 
    z-index: 10; 
    font-size: 28px; 
    padding: 20px 15px 15px 20px; 
    margin: 25px 0 0 -20px;  
    border-radius: 0; 
    border-bottom: 1px solid rgba(0,0,0,0.03);
}

body.dark-mode .year-marker { 
    border-bottom: 1px solid rgba(255,255,255,0.03); 
}

.month-marker { 
    top: 68px; 
    z-index: 9; 
    font-size: 18px; 
    color: var(--date-color); 
    padding: 10px 15px 10px 20px; 
    margin: 0 0 20px -20px; 
    border-radius: 0 0 8px 8px;
}

/* ==========================================
   5. 日记卡片与高亮动画
========================================== */
.timeline-item { 
    position: relative; 
    margin-bottom: 25px; 
    padding-left: 20px; 
    z-index: 1; 
    width: 100%;
    box-sizing: border-box;
}

.timeline-item:last-child { 
    margin-bottom: 0; 
}

@keyframes highlightPulse {
    0% {
        background-color: rgba(255, 77, 79, 0.3);
        box-shadow: 0 0 20px rgba(255, 77, 79, 0.4);
    }
    30% {
        background-color: rgba(255, 77, 79, 0.2);
        box-shadow: 0 0 15px rgba(255, 77, 79, 0.3);
    }
    80% {
        background-color: rgba(255, 77, 79, 0.05);
        box-shadow: 0 0 5px rgba(255, 77, 79, 0.1);
    }
    100% {
        background-color: transparent;
        box-shadow: none;
    }
}

.timeline-item.highlight-flash {
    animation: highlightPulse 4s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
    border-radius: 12px;
}

.event-icon {
    width: 10px; 
    height: 10px; 
    z-index: 2;
    flex-shrink: 0; 
    margin-top: 5px; 
}

.event-icon.red-dot { 
    border-radius: 50%; 
    background-color: #ff4d4f; 
}

.event-icon.triangle {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
    transform: rotate(-90deg); 
    fill: #ff4d4f;
}

.timeline-item.expanded .event-icon.triangle {
    transform: rotate(0deg); 
}

.item-content { 
    display: flex; 
    align-items: flex-start; 
    gap: 15px; 
    width: 100%;
    box-sizing: border-box;
}

.item-date { 
    color: var(--date-color); 
    font-size: 14px; 
    min-width: 45px; 
    display: inline-block; 
    padding-top: 1px; 
}

.item-title { 
    font-size: 16px; 
    color: var(--title-color); 
    transition: color 0.2s; 
    word-break: break-word; 
}

.photo-badge, .event-action-btn { 
    color: #0066cc; 
    transition: transform 0.2s; 
    font-size: 12px;
    cursor: pointer;
}

.photo-badge:hover, .event-action-btn:hover { 
    transform: scale(1.08); 
    color: #ff4d4f;
}

/* ==========================================
   6. 简介展开/收起动画
========================================== */
.intro-wrapper {
    display: grid;
    grid-template-rows: 0fr; 
    opacity: 0;              
    transition: grid-template-rows 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), 
                opacity 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.timeline-item.expanded .intro-wrapper {
    grid-template-rows: 1fr; 
    opacity: 1;              
}

.item-intro {
    overflow: hidden; 
    font-size: 14px; 
    color: var(--date-color); 
    line-height: 1.6; 
    white-space: pre-wrap; 
    padding-top: 8px; 
}

/* ==========================================
   7. 主题切换胶囊 (动态跟随向上滑动显示)
========================================== */
.theme-switcher { 
    position: fixed; 
    bottom: 30px; 
    right: 30px; 
    z-index: 999; 
    display: flex; 
    gap: 5px; 
    padding: 5px; 
    border-radius: 30px; 
    background: rgba(0, 0, 0, 0.05); 
    backdrop-filter: blur(5px); 
    box-shadow: 0 4px 15px rgba(0,0,0,0.1); 
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease;
}

.theme-switcher.nav-hidden {
    transform: translateY(150%);
    opacity: 0;
    pointer-events: none;
}

body.dark-mode .theme-switcher { 
    background: rgba(255, 255, 255, 0.1); 
}

.theme-btn { 
    border: none; 
    background: transparent; 
    cursor: pointer; 
    padding: 8px 15px; 
    border-radius: 20px; 
    color: var(--date-color); 
    transition: all 0.2s; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
}

.theme-btn.active { 
    background: var(--bg-color); 
    color: var(--text-color); 
    box-shadow: 0 2px 5px rgba(0,0,0,0.1); 
}

/* ==========================================
   8. 登录框
========================================== */
.login-container { 
    width: 100%; 
    max-width: 400px; 
    text-align: center; 
    background: var(--mask-bg); 
    padding: 40px 30px; 
    margin-top: 50px; 
    border-radius: 16px; 
    box-shadow: 0 10px 30px rgba(0,0,0,0.05); 
}

.login-container h2 { 
    margin-top: 0; 
    margin-bottom: 20px; 
    color: var(--title-color); 
    display: flex; 
    align-items: center; 
    justify-content: center; 
}

.login-container input { 
    width: 100%; 
    box-sizing: border-box; 
    margin-bottom: 15px; 
    padding: 12px; 
    border: 1px solid var(--line-color); 
    border-radius: 8px; 
    background: var(--bg-color); 
    color: var(--text-color); 
    font-size: 16px;
}

.login-container input:focus { 
    outline: none; 
    border-color: #0066cc; 
}

.login-btn { 
    width: 100%; 
    padding: 12px; 
    background-color: var(--text-color); 
    color: var(--bg-color); 
    border: none; 
    border-radius: 8px; 
    font-size: 16px; 
    font-weight: bold; 
    cursor: pointer; 
    transition: opacity 0.2s; 
}

.login-btn:hover { 
    opacity: 0.8; 
}

.hidden { 
    display: none !important; 
}

/* ==========================================
   9. 照片墙弹窗与反馈弹窗
========================================== */
.modal { 
    position: fixed; 
    z-index: 2000; 
    left: 0; 
    top: 0; 
    width: 100vw; 
    height: 100vh;
    height: 100dvh; 
    background-color: rgba(0, 0, 0, 0.88); 
    display: flex; 
    flex-direction: column; 
    justify-content: center; 
    align-items: center; 
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    overflow: hidden;
}

#modal-img-container { 
    position: relative;
    display: flex; 
    align-items: center; 
    justify-content: center; 
    width: 100%; 
    height: 100%; 
    box-sizing: border-box;
    padding: 70px 80px 70px 80px; 
    pointer-events: auto;
}

.modal-content { 
    max-width: 100%; 
    max-height: 100%; 
    width: auto;
    height: auto;
    object-fit: contain; 
    border-radius: 8px; 
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.6); 
    user-select: none;
    -webkit-user-drag: none;
    will-change: transform; 
}

.close-modal { 
    position: absolute; 
    top: 20px; 
    right: 25px; 
    color: #fff; 
    cursor: pointer; 
    z-index: 10; 
    transition: transform 0.2s, color 0.2s; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    width: 44px; 
    height: 44px; 
    background: rgba(255,255,255,0.1); 
    border-radius: 50%;
}

.close-modal:hover { 
    transform: scale(1.1); 
    color: #ff4d4f; 
    background: rgba(255,255,255,0.2); 
}

.close-contrib {
    position: absolute; 
    top: 15px; 
    right: 15px; 
    color: var(--text-color); 
    cursor: pointer; 
    z-index: 10; 
    transition: transform 0.2s, color 0.2s, background 0.2s; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    width: 36px; 
    height: 36px; 
    background: rgba(0, 0, 0, 0.05); 
    border-radius: 50%;
}

body.dark-mode .close-contrib {
    background: rgba(255, 255, 255, 0.1);
}

.close-contrib:hover {
    transform: scale(1.1); 
    color: #ff4d4f; 
    background: rgba(255, 77, 79, 0.12);
}

.modal-download { 
    position: absolute; 
    top: 20px; 
    left: 25px; 
    color: #fff; 
    text-decoration: none; 
    cursor: pointer; 
    transition: color 0.2s, transform 0.2s; 
    z-index: 10; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    width: 44px; 
    height: 44px; 
    background: rgba(255,255,255,0.1); 
    border-radius: 50%;
}

.modal-download:hover { 
    color: #52c41a; 
    transform: scale(1.1); 
    background: rgba(255,255,255,0.2); 
}

/* 🖼️ 查看原图按钮样式 */
.view-original-btn {
    position: absolute;
    bottom: 25px;
    left: 30px;
    z-index: 10;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: #ffffff;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    cursor: pointer;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 4px;
}

.view-original-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

.view-original-btn.loaded {
    opacity: 0.6;
    cursor: default;
    background: rgba(255, 255, 255, 0.08);
}

.modal-nav { 
    position: absolute; 
    top: 50%; 
    transform: translateY(-50%); 
    background: rgba(255, 255, 255, 0.15); 
    color: white; 
    border: none; 
    font-size: 22px; 
    width: 40px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer; 
    border-radius: 8px;
    transition: all 0.2s ease; 
    z-index: 10; 
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.modal-nav:hover { 
    background: rgba(255, 255, 255, 0.3); 
    transform: translateY(-50%) scale(1.05); 
}

.modal-nav.hidden { 
    display: none !important; 
}

.modal-nav.prev { 
    left: 20px; 
} 

.modal-nav.next { 
    right: 20px; 
}

#modal-caption { 
    position: absolute; 
    bottom: 25px; 
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.85); 
    font-size: 14px; 
    letter-spacing: 1px; 
    z-index: 5; 
    background: rgba(0, 0, 0, 0.5); 
    padding: 5px 16px; 
    border-radius: 20px;
    backdrop-filter: blur(4px); 
    pointer-events: none;
    white-space: nowrap;
}

.zoom-controls { 
    position: absolute; 
    bottom: 25px; 
    right: 30px; 
    display: flex; 
    gap: 12px; 
    z-index: 10; 
}

.zoom-controls button {
    background: rgba(255, 255, 255, 0.15); 
    border: 1px solid rgba(255, 255, 255, 0.25); 
    color: white;
    border-radius: 50%; 
    width: 42px; 
    height: 42px; 
    cursor: pointer; 
    backdrop-filter: blur(5px);
    display: flex; 
    align-items: center; 
    justify-content: center; 
    transition: all 0.2s ease;
}

.zoom-controls button:hover { 
    background: rgba(255, 255, 255, 0.3); 
    transform: scale(1.08);
}

.contrib-box {
    background: var(--card-bg);
    width: 90%;
    max-width: 520px;
    padding: 30px;
    border-radius: 16px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    color: var(--text-color);
    box-sizing: border-box;
    max-height: 85vh;
    overflow-y: auto;
}

.contrib-box label {
    font-size: 13px;
    font-weight: bold;
    color: var(--title-color);
    margin-bottom: 4px;
    display: block;
}

.contrib-box input, .contrib-box textarea, .contrib-box select {
    width: 100%;
    box-sizing: border-box;
    border: 1px solid var(--line-color);
    border-radius: 8px;
    padding: 8px 10px;
    background: var(--bg-color);
    color: var(--text-color);
    font-size: 14px;
    outline: none;
}

@media (max-width: 768px) {
    #modal-img-container {
        padding: 60px 12px 60px 12px !important;
    }

    .modal-nav,
    .zoom-controls,
    .desktop-only {
        display: none !important;
    }

    .modal-download {
        top: 15px;
        left: 15px;
        width: 38px;
        height: 38px;
    }

    .close-modal {
        top: 15px;
        right: 15px;
        width: 38px;
        height: 38px;
    }

    .close-contrib {
        top: 12px;
        right: 12px;
        width: 32px;
        height: 32px;
    }

    #modal-caption {
        bottom: 15px;
        font-size: 12px;
        padding: 4px 12px;
    }

    .view-original-btn {
        bottom: 15px;
        left: 15px;
        padding: 4px 10px;
        font-size: 12px;
    }
}

/* ==========================================
   10. 桌面端左侧导航栏
========================================== */
.sidebar { 
    position: fixed; 
    left: 5%; 
    top: 20%; 
    width: 120px; 
    display: flex; 
    flex-direction: column; 
    gap: 10px; 
    height: 80vh; 
    height: 80dvh; 
    box-sizing: border-box; 
    padding-bottom: 30px; 
    z-index: 1001; 
}

.sidebar.hidden {
    display: none !important;
}

.sidebar a { 
    text-decoration: none; 
    color: var(--date-color); 
    transition: 0.2s; 
}

.sidebar a:hover { 
    color: #0066cc; 
    transform: translateX(5px); 
}

.sidebar-year { 
    font-weight: bold; 
    font-size: 18px; 
    color: var(--title-color) !important; 
    margin-top: 10px; 
}

.sidebar-month { 
    font-size: 14px; 
    padding-left: 15px; 
}

/* ==========================================
   11. 移动端响应式适配与刘海屏安全区避让
========================================== */
.mobile-menu-btn { 
    display: none; 
    position: fixed; 
    top: max(20px, calc(env(safe-area-inset-top, 0px) + 15px)); 
    right: 20px; 
    z-index: 1002; 
    background: var(--mask-bg); 
    backdrop-filter: blur(5px); 
    border: 1px solid var(--line-color); 
    border-radius: 50%; 
    width: 45px; 
    height: 45px; 
    cursor: pointer; 
    box-shadow: 0 4px 12px rgba(0,0,0,0.1); 
    color: var(--text-color); 
    align-items: center;
    justify-content: center;
}

.mobile-menu-btn svg {
    position: absolute;
    top: 50%;
    left: 50%;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.35s ease;
}

.mobile-menu-btn .icon-menu {
    display: block;
    opacity: 1;
    transform: translate(-50%, -50%) scale(1) rotate(0deg);
}

.mobile-menu-btn .icon-close {
    display: block;
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.5) rotate(-90deg);
}

.mobile-menu-btn.active .icon-menu {
    display: block;
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.5) rotate(90deg);
}

.mobile-menu-btn.active .icon-close {
    display: block;
    opacity: 1;
    transform: translate(-50%, -50%) scale(1) rotate(0deg);
}

.mobile-overlay { 
    position: fixed; 
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%; 
    background-color: rgba(0, 0, 0, 0.4); 
    backdrop-filter: blur(5px); 
    -webkit-backdrop-filter: blur(5px); 
    z-index: 1000; 
    opacity: 1; 
    transition: opacity 0.3s; 
}

.mobile-overlay.hidden { 
    opacity: 0; 
    pointer-events: none; 
}

@media (max-width: 1100px) {
    .mobile-menu-btn { display: flex; }
    .mobile-menu-btn.hidden { display: none !important; }
    
    .sidebar { 
        position: fixed; 
        top: 0; 
        right: 0; 
        left: auto; 
        width: 60%; 
        height: 100vh; 
        height: 100dvh; 
        box-sizing: border-box; 
        background-color: var(--bg-color); 
        z-index: 1001; 
        padding: calc(70px + env(safe-area-inset-top, 0px)) 20px 30px 30px; 
        transform: translateX(100%); 
        box-shadow: none; 
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s; 
        display: flex; 
        flex-direction: column; 
    }
    
    .sidebar.open { 
        transform: translateX(0); 
        box-shadow: -5px 0 20px rgba(0,0,0,0.15); 
    }
}

#main-content:has(#home-view.active) #sidebar,
#main-content:has(#album-view.active) #sidebar,
body:has(#home-view.active) .sidebar,
body:has(#album-view.active) .sidebar,
body:has(#home-view.active) .mobile-menu-btn,
body:has(#album-view.active) .mobile-menu-btn {
    display: none !important;
}

@media (max-width: 768px) {
    body { padding: calc(75px + env(safe-area-inset-top, 0px)) 10px 4vh; } 
    .timeline { padding-left: 15px; }
    
    .header { 
        margin-top: calc(15px + env(safe-area-inset-top, 0px)); 
        margin-bottom: 12px;
    }
    .header h1 { 
        font-size: 24px; 
    }
    .header p {
        font-size: 14px;
    }
    
    .year-marker { 
        font-size: 24px; 
        top: 0; 
        margin-top: 20px; 
        margin-left: -15px; 
        padding: 20px 15px 15px 15px; 
        width: calc(100% + 15px); 
        border-radius: 0; 
        background: var(--bg-color); 
        z-index: 10; 
    }
    
    .month-marker { 
        font-size: 16px; 
        top: 64px; 
        margin-left: -15px; 
        padding: 10px 15px; 
        width: calc(100% + 15px); 
        z-index: 9; 
    }
    
    .item-title { font-size: 15px; line-height: 1.5; }
    .item-content { gap: 10px; } 
    .item-date { min-width: 40px; font-size: 13px; }
    .theme-switcher { bottom: 15px; right: 15px; padding: 3px; gap: 2px; }
    .theme-btn { padding: 6px 12px; }
    .fab { bottom: 70px; right: 15px; }
}

/* ==========================================
   12. 悬浮回顶按钮
========================================== */
.fab {
    position: fixed; 
    bottom: 85px; 
    right: 25px; 
    z-index: 998;
    background: rgba(255, 255, 255, 0.85); 
    color: var(--text-color);
    border: 1px solid rgba(0, 0, 0, 0.08); 
    border-radius: 50%; 
    width: 44px; 
    height: 44px;
    display: flex; 
    align-items: center; 
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08); 
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    cursor: pointer;
    opacity: 0; 
    visibility: hidden; 
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateY(20px);
}

.fab:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
    color: #ff4d4f;
}

body.dark-mode .fab {
    background: rgba(28, 28, 30, 0.85);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

body.dark-mode .fab:hover { color: #ff4d4f; }
.fab.visible { opacity: 1; visibility: visible; transform: translateY(0); }

/* ==========================================
   13. 视图导航胶囊 (含刘海屏安全区避让)
========================================== */
.view-section { 
    display: none; 
    width: 100%; 
    max-width: 800px; 
    margin: 0 auto; 
    box-sizing: border-box;
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.view-section.active { 
    display: block; 
    opacity: 1;
    transform: translateY(0);
}

.top-nav-container {
    display: flex; 
    justify-content: center; 
    position: fixed; 
    top: max(15px, env(safe-area-inset-top, 15px)); 
    left: 0; 
    right: 0; 
    z-index: 1050; 
    pointer-events: none; 
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease; 
}

.top-nav-container.nav-hidden {
    transform: translateY(-150%);
    opacity: 0;
}

.top-nav {
    pointer-events: auto; 
    display: flex; 
    gap: 8px; 
    padding: 6px 12px; 
    border-radius: 40px;
    background: rgba(255, 255, 255, 0.85); 
    backdrop-filter: blur(16px); 
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.08);
    align-items: center;
    transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

body.dark-mode .top-nav { 
    background: rgba(28, 28, 30, 0.85); 
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35); 
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.nav-item { 
    position: relative;
    padding: 6px 18px;
    border-radius: 20px;
    color: #666666; 
    font-weight: bold; 
    cursor: pointer; 
    text-decoration: none; 
    font-size: 14px; 
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1); 
    user-select: none; 
    -webkit-tap-highlight-color: transparent; 
}

.nav-item:hover { color: #111111; }
body.dark-mode .nav-item { color: #888888; }
body.dark-mode .nav-item:hover { color: #cccccc; }

.nav-item.active { 
    color: #ff4d4f !important; 
    background: rgba(255, 77, 79, 0.12);
    transform: scale(1.03);
}

body.dark-mode .nav-item.active {
    background: rgba(255, 77, 79, 0.2);
}

/* ==========================================
   14. 首页布局
========================================== */
#home-view {
    width: 100%;
    max-width: 800px; 
    box-sizing: border-box;
}

.otd-stats-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 12px;
    flex-wrap: wrap;
}

.stat-badge, .stat-badge-btn {
    font-size: 12px;
    padding: 4px 12px;
    border-radius: 20px;
    background: rgba(125, 125, 125, 0.1);
    color: var(--date-color);
    border: 1px solid var(--line-color);
}

.stat-badge-btn {
    cursor: pointer;
    color: var(--title-color);
    transition: all 0.2s ease;
}

.stat-badge-btn:hover {
    background: #ff4d4f;
    color: #fff;
    border-color: #ff4d4f;
}

.otd-date-stepper {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    margin-top: 18px;
    background: var(--mask-bg);
    padding: 6px 16px;
    border-radius: 30px;
    border: 1px solid var(--line-color);
}

.stepper-btn {
    background: none;
    border: none;
    color: var(--title-color);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 6px;
    transition: background 0.2s ease, color 0.2s ease;
}

.stepper-btn:hover { color: #ff4d4f; }

.stepper-date {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    font-weight: 700;
    color: var(--title-color);
}

.today-tag {
    font-size: 10px;
    background: #ff4d4f;
    color: #fff;
    padding: 1px 6px;
    border-radius: 10px;
}

.stepper-reset {
    background: none;
    border: none;
    font-size: 12px;
    color: #ff4d4f;
    cursor: pointer;
    text-decoration: underline;
}

.otd-container {
    display: flex;
    flex-direction: column;
    align-items: stretch; 
    width: 100%;
    box-sizing: border-box;
    gap: 20px;
    margin-top: 25px;
    padding-bottom: 20px;
}

.otd-card { 
    width: 100% !important;
    min-width: 100%;
    box-sizing: border-box;
    background: var(--card-bg) !important; 
    border-radius: 16px; 
    overflow: hidden; 
    box-shadow: 0 4px 20px rgba(0,0,0,0.04); 
    border: 1px solid var(--line-color); 
    transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.3s ease; 
    display: flex;
    flex-direction: column;
    align-self: stretch;
}

body.dark-mode .otd-card { 
    background: #222222 !important; 
    border-color: #333; 
}

.otd-card:hover { 
    transform: translateY(-4px); 
    box-shadow: 0 12px 30px rgba(0,0,0,0.08); 
}

.otd-img-wrapper { 
    position: relative; 
    width: 100%; 
    max-height: 380px; 
    overflow: hidden; 
    background: #000; 
}

.otd-image { 
    width: 100%; 
    height: 100%; 
    object-fit: cover; 
    display: block; 
    opacity: 0.9; 
    transition: opacity 0.3s, transform 0.5s ease; 
}

.otd-image:hover { opacity: 1; transform: scale(1.02); }

.photo-badge-count { 
    position: absolute; 
    bottom: 12px; 
    right: 12px; 
    background: rgba(0,0,0,0.55); 
    color: #fff; 
    backdrop-filter: blur(8px); 
    -webkit-backdrop-filter: blur(8px);
    padding: 4px 12px; 
    border-radius: 20px; 
    font-size: 12px; 
    font-weight: 600; 
    pointer-events: none; 
    border: 1px solid rgba(255,255,255,0.15); 
}

.otd-content { 
    padding: 20px 25px 12px 25px; 
    flex: 1;
    width: 100%;
    box-sizing: border-box;
}

.otd-year { 
    display: inline-flex;
    align-items: center; 
    font-size: 20px; 
    font-weight: 800; 
    color: var(--title-color); 
    margin-bottom: 14px; 
    padding-left: 10px;
    border-left: 3px solid #ff4d4f;
    line-height: 1.2; 
}

.otd-sub-event { 
    width: 100%;
    box-sizing: border-box;
    margin-bottom: 14px; 
    padding: 6px;
    border-radius: 8px;
    transition: background 0.2s ease;
}

.otd-sub-event:last-child { margin-bottom: 0; }
.otd-sub-title { font-size: 16px; color: var(--title-color); font-weight: bold; word-break: break-word; }
.otd-sub-intro { font-size: 14px; color: var(--date-color); margin-top: 4px; line-height: 1.5; word-break: break-word; }

.otd-empty-state {
    width: 100%;
    box-sizing: border-box;
    text-align: center;
    padding: 60px 20px;
    background: var(--mask-bg);
    border-radius: 16px;
    border: 1px dashed var(--line-color);
}

/* ==========================================
   15. 首页热力图多级深浅色区分
========================================== */
.heatmap-wrapper {
    margin-top: 30px;
    margin-bottom: 40px;
    background: var(--mask-bg);
    border: 1px solid var(--line-color);
    border-radius: 18px;
    padding: 22px 24px;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    overflow-x: auto; 
    width: 100%;
    box-sizing: border-box;
}

.heatmap-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 15px;
    font-weight: 700;
    color: var(--title-color);
    margin-bottom: 16px;
}

.heatmap-hint, 
.admin-sub-card p, 
.status-msg-text, 
.status-msg { 
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif !important;
    font-size: 13px !important; 
    font-weight: normal !important; 
    color: var(--date-color) !important; 
    line-height: 1.5 !important;
}

.heatmap-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 8px;
    min-width: 580px; 
    padding-bottom: 6px;
    width: 100%;
    box-sizing: border-box;
}

.heatmap-month {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    width: 100%;
}

.month-title { font-size: 12px; color: var(--date-color); font-weight: 700; }

.days-dots {
    display: grid;
    grid-template-columns: repeat(2, 13px);
    gap: 4px;
    justify-content: center;
}

.dot {
    width: 13px !important;
    height: 13px !important;
    min-width: 13px !important;
    min-height: 13px !important;
    max-width: 13px !important;
    max-height: 13px !important;
    border-radius: 3px;
    background: rgba(150, 150, 150, 0.15);
    cursor: pointer;
    transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275), background 0.2s ease;
    flex-shrink: 0;
    box-sizing: border-box;
}

.dot.empty-placeholder { visibility: hidden; pointer-events: none; cursor: default; }
.dot:hover:not(.empty-placeholder) { transform: scale(1.45); z-index: 5; }

/* 🌟 5个清晰区分度等级 (亮色) */
.dot.level-1 { background: #ffccc7; }
.dot.level-2 { background: #ff7875; }
.dot.level-3 { background: #ff4d4f; }
.dot.level-4 { background: #cf1322; }
.dot.level-5 { background: #820014; }

/* 🌟 5个清晰区分度等级 (暗色) */
body.dark-mode .dot.level-1 { background: #5c0011; }
body.dark-mode .dot.level-2 { background: #820014; }
body.dark-mode .dot.level-3 { background: #a8071a; }
body.dark-mode .dot.level-4 { background: #ff4d4f; }
body.dark-mode .dot.level-5 { background: #ff7875; }

.dot.selected { outline: 2px solid var(--title-color); outline-offset: 1px; }

/* ==========================================
   16. 表情气泡弹窗与胶囊分行/自适应滑动 
========================================== */
.tg-reaction-picker {
    position: fixed;
    z-index: 3000;
    max-width: 90vw;
    animation: tgPopIn 0.25s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes tgPopIn {
    0% { opacity: 0; transform: scale(0.7) translateY(10px); }
    100% { opacity: 1; transform: scale(1) translateY(0); }
}

.tg-picker-bubble {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 30px;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18), 0 0 0 1px rgba(0, 0, 0, 0.08);
    flex-wrap: wrap;
    max-width: 320px;
    justify-content: center;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

body.dark-mode .tg-picker-bubble {
    background: rgba(35, 35, 38, 0.92);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.tg-emoji-item {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    padding: 4px;
    border-radius: 50%;
    transition: transform 0.2s ease, background 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    flex-shrink: 0;
}

.tg-emoji-item:hover { transform: scale(1.35); }
.tg-emoji-item.selected { background: rgba(255, 77, 79, 0.2); transform: scale(1.15); }

.card-reactions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin-top: 8px;
    width: 100%;
    box-sizing: border-box;
}

.card-reactions.empty { display: none !important; }

.reaction-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 16px;
    border: 1px solid var(--line-color);
    background: var(--card-bg);
    color: var(--date-color);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
    flex-shrink: 0;
}

.reaction-btn:hover { border-color: #ff4d4f; transform: translateY(-1px); }

.reaction-btn.active {
    border-color: #ff4d4f;
    background: rgba(255, 77, 79, 0.12);
    color: #ff4d4f;
    font-weight: 600;
}

body.dark-mode .reaction-btn.active {
    background: rgba(255, 77, 79, 0.25);
    color: #ff7875;
}

.reaction-btn .emoji { font-size: 13px; }
.reaction-btn .count { font-size: 11px; }

/* ==========================================
   17. 搜索框与动画
========================================== */
.search-wrapper {
    position: relative;
    width: 100%;
    min-height: 60px;
    z-index: 100;
    margin-top: 10px;
    margin-bottom: 30px;
}

.search-box { 
    position: relative; 
    width: 100%; 
    max-width: 500px; 
    margin-left: auto; 
    margin-right: auto; 
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    z-index: 100;
}

.search-box svg { 
    position: absolute; 
    left: 15px; 
    top: 50%; 
    transform: translateY(-50%); 
    color: var(--date-color); 
    z-index: 2; 
    transition: all 0.3s; 
}

.search-box input { 
    width: 100%; 
    padding: 12px 15px 12px 42px; 
    border: 1px solid var(--line-color); 
    border-radius: 25px; 
    background: var(--mask-bg); 
    backdrop-filter: blur(10px); 
    -webkit-backdrop-filter: blur(10px);
    color: var(--text-color); 
    font-size: 15px; 
    box-sizing: border-box; 
    outline: none; 
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 15px rgba(0,0,0,0.02);
}

.search-box input:focus { 
    border-color: #0066cc; 
    box-shadow: 0 4px 20px rgba(0,102,204,0.1); 
}

@media (min-width: 769px) {
    .search-box.floating-right {
        position: fixed;
        top: 25px;
        right: 35px;
        width: 240px; 
        max-width: none;
        margin: 0;
        transform: none !important;
        z-index: 1200; 
    }
    
    .search-box.floating-right input {
        background: var(--mask-bg);
        box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    }
}

@media (max-width: 768px) {
    .search-wrapper { margin-top: 0; margin-bottom: 0; min-height: auto; } 
    .search-box {
        position: sticky;
        top: 0;
        margin: 0 -10px 20px -10px; 
        padding: 10px 15px 15px 15px; 
        width: auto;
        max-width: none;
        background: var(--mask-bg); 
        backdrop-filter: blur(15px);
        -webkit-backdrop-filter: blur(15px);
        border-bottom: 1px solid rgba(0,0,0,0.05);
    }
    body.dark-mode .search-box { border-bottom: 1px solid rgba(255,255,255,0.05); }
    .search-box svg { left: 30px; top: calc(50% + 2px); }
    .search-box input {
        background: rgba(128, 128, 128, 0.08); 
        backdrop-filter: none; 
        -webkit-backdrop-filter: none; 
        box-shadow: none;
    }
}

@keyframes fadeInUp {
    0% { opacity: 0; transform: translateY(15px); }
    100% { opacity: 1; transform: none !important; } 
}

.timeline-item, .year-marker, .month-marker {
    animation: fadeInUp 0.4s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

.timeline { transition: opacity 0.2s ease; }

@keyframes fadeOutUpUI {
    to { opacity: 0; transform: translateY(-20px); visibility: hidden; }
}

.login-container.fade-out { animation: fadeOutUpUI 0.3s ease forwards; }

#main-content > .header,
#main-content > .search-wrapper, 
#main-content > .timeline {
    animation: fadeInUp 0.6s cubic-bezier(0.25, 0.8, 0.25, 1) forwards;
}

#main-content > .sidebar { animation: justFadeIn 0.6s ease forwards; }

@keyframes justFadeIn { 0% { opacity: 0; } 100% { opacity: 1; } }

@keyframes themeIconPop {
    0% { transform: scale(0.8) rotate(-15deg); }
    50% { transform: scale(1.15) rotate(5deg); }
    100% { transform: scale(1) rotate(0deg); }
}

.theme-btn.active svg {
    animation: themeIconPop 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

/* ==========================================
   18. 后台表单与控制组件样式
========================================== */
.admin-form-container {
    background: var(--card-bg);
    border: 1px solid var(--line-color);
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.04);
    margin-top: 15px;
    box-sizing: border-box;
    width: 100%;
}

.form-row {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
    margin-bottom: 15px;
}

.form-group label {
    font-size: 14px;
    font-weight: 600;
    color: var(--title-color);
}

.form-group input, 
.form-group textarea {
    padding: 10px 12px;
    border: 1px solid var(--line-color);
    border-radius: 8px;
    background: var(--bg-color);
    color: var(--text-color);
    font-size: 14px;
    font-family: inherit; 
    box-sizing: border-box;
    outline: none;
    transition: border-color 0.2s;
    width: 100%;
}

.form-group input:focus, 
.form-group textarea:focus {
    border-color: #0066cc;
}

.event-block {
    position: relative;
    background: var(--mask-bg);
    border: 1px solid var(--line-color);
    border-radius: 12px;
    padding: 18px 20px 15px 20px;
    margin-bottom: 15px;
    box-sizing: border-box;
}

.remove-block-btn {
    position: absolute;
    top: 10px;
    right: 12px;
    background: none;
    border: none;
    font-size: 20px;
    color: var(--date-color);
    cursor: pointer;
    line-height: 1;
    padding: 4px;
    border-radius: 4px;
    transition: color 0.2s, background 0.2s;
}

.remove-block-btn:hover {
    color: #ff4d4f;
    background: rgba(255, 77, 79, 0.1);
}

.edit-mode-banner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(250, 140, 22, 0.1);
    border: 1px solid #fa8c16;
    color: #fa8c16;
    padding: 12px 18px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
}

.edit-actions {
    display: flex;
    gap: 10px;
}

.submit-btn {
    width: 100%;
    padding: 12px;
    background-color: #0066cc;
    color: #ffffff;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: opacity 0.2s, background-color 0.2s;
    box-sizing: border-box;
}

.submit-btn:hover { opacity: 0.9; }

.btn-dashed {
    background: transparent;
    border: 1px dashed var(--line-color);
    color: var(--text-color);
    margin-bottom: 20px;
}

.btn-dashed:hover {
    border-color: #0066cc;
    color: #0066cc;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--line-color);
    color: var(--text-color);
    border-radius: 6px;
    padding: 6px 12px;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn-danger {
    background: #ff4d4f;
    color: #ffffff;
    border: none;
    border-radius: 6px;
    padding: 6px 14px;
    cursor: pointer;
    font-size: 13px;
    transition: opacity 0.2s;
}

.btn-danger:hover { opacity: 0.85; }
.btn-success { background: #52c41a; color: #fff; }
.btn-purple { background: #722ed1; color: #fff; }

.admin-overview {
    margin-top: 35px;
    padding-top: 25px;
    border-top: 1px dashed var(--line-color);
}

.admin-overview h3 {
    margin-top: 0;
    margin-bottom: 15px;
    color: var(--title-color);
}

.admin-action-row {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.admin-action-row .submit-btn {
    flex: 1;
    min-width: 120px;
}

.admin-list-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 400px;
    overflow-y: auto;
}

.admin-list-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--mask-bg);
    border: 1px solid var(--line-color);
    border-radius: 10px;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
}

.admin-list-item:hover {
    border-color: #0066cc;
    background: var(--card-bg);
}

.item-date-text {
    font-size: 13px;
    color: var(--date-color);
    width: 90px;
    flex-shrink: 0;
}

.item-title-text {
    flex: 1;
    font-size: 14px;
    color: var(--title-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    padding: 0 10px;
}

.item-edit-btn {
    font-size: 12px;
    color: #0066cc;
    display: flex;
    align-items: center;
    gap: 4px;
}

.sub-review-card {
    background: var(--mask-bg);
    border: 1px solid var(--line-color);
    border-radius: 10px;
    padding: 12px 15px;
    margin-bottom: 10px;
}

.sub-card-tag {
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 10px;
    color: #fff;
    margin-right: 6px;
}
.sub-card-tag.new_event { background: #52c41a; }
.sub-card-tag.supplement { background: #1890ff; }
.sub-card-tag.error_report { background: #fa8c16; }

.sub-edit-form {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed var(--line-color);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.sub-edit-form .form-row {
    margin-bottom: 0;
}

.sub-edit-form input, 
.sub-edit-form textarea, 
.sub-edit-form select {
    padding: 6px 10px;
    border: 1px solid var(--line-color);
    border-radius: 6px;
    background: var(--bg-color);
    color: var(--text-color);
    font-size: 13px;
    width: 100%;
    box-sizing: border-box;
}

/* ==========================================
   19. 后台表情与回应追踪滚动框限制
========================================== */
.emoji-font-override,
.emoji-code-input,
.tg-emoji-item,
.reaction-btn .emoji,
.emoji-tag {
    font-family: 'Noto Color Emoji', 'Apple Color Emoji', 'Segoe UI Emoji', sans-serif !important;
}

.admin-sub-card {
    background: var(--mask-bg);
    border: 1px solid var(--line-color);
    border-radius: 12px;
    padding: 20px;
    box-sizing: border-box;
    width: 100%;
}

.card-title-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--title-color);
    font-size: 15px;
}

.emoji-config-grid {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
}

.emoji-edit-row {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    box-sizing: border-box;
}

@media (max-width: 600px) {
    .emoji-edit-row {
        flex-wrap: wrap;
        gap: 8px;
        background: var(--bg-color);
        padding: 10px;
        border-radius: 8px;
        border: 1px solid var(--line-color);
    }
    .emoji-code-input {
        width: 50px;
        min-width: 50px;
    }
    .emoji-key-input {
        flex: 1;
        min-width: 100px;
    }
    .emoji-label-input {
        flex: 1 1 100%;
    }
}

.emoji-edit-row input {
    padding: 8px 12px;
    border: 1px solid var(--line-color);
    border-radius: 8px;
    background: var(--bg-color);
    color: var(--text-color);
    font-size: 14px;
    box-sizing: border-box;
}

.emoji-code-input {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 60px;
    height: 38px;
    padding: 0 8px;
    background-color: var(--bg-color, #ffffff);
    border: 1px solid var(--line-color, #dcdfe6);
    border-radius: 8px;
    font-size: 20px;
    text-align: center;
    box-sizing: border-box;
    outline: none;
    cursor: text;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.emoji-code-input:focus {
    border-color: var(--primary-color, #409eff);
    box-shadow: 0 0 0 2px rgba(64, 158, 255, 0.2);
}

.emoji-code-input:empty::before {
    content: "😃";
    opacity: 0.4;
}
.emoji-key-input { width: 130px; flex-shrink: 0; }
.emoji-label-input { flex: 1; min-width: 80px; }

.btn-danger-icon {
    background: none;
    border: none;
    color: #ff4d4f;
    font-size: 16px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background 0.2s;
    flex-shrink: 0;
}

.btn-danger-icon:hover { background: rgba(255, 77, 79, 0.1); }

/* 🌟 限定回应追踪在可滚动框内 */
.reaction-table-wrapper {
    width: 100%;
    max-height: 380px;
    overflow-y: auto;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-top: 15px;
    border: 1px solid var(--line-color);
    border-radius: 8px;
}

.admin-table {
    width: 100%;
    min-width: 550px;
    border-collapse: collapse;
    text-align: left;
    font-size: 13px;
}

.admin-table th, .admin-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--line-color);
    color: var(--text-color);
}

.admin-table th {
    background: rgba(0, 0, 0, 0.03);
    color: var(--title-color);
    font-weight: bold;
    position: sticky;
    top: 0;
    z-index: 2;
}

body.dark-mode .admin-table th { background: rgba(255, 255, 255, 0.05); }

.code-badge {
    background: rgba(0, 0, 0, 0.06);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 12px;
}

body.dark-mode .code-badge { background: rgba(255, 255, 255, 0.1); }

.emoji-tag {
    font-size: 16px;
    background: rgba(255, 77, 79, 0.1);
    padding: 2px 8px;
    border-radius: 12px;
    display: inline-block;
}

.table-preview-cell {
    max-width: 180px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--date-color);
}

.btn-danger-small {
    background: #ff4d4f;
    color: #fff;
    border: none;
    padding: 3px 10px;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    transition: opacity 0.2s;
}

.btn-danger-small:hover { opacity: 0.85; }

.cleanup-preview-img:hover, .sub-preview-img:hover {
    transform: scale(1.08) !important;
}

/* ==========================================
   20. 班级相册 · 随机瀑布流与过渡加载屏
========================================== */
#album-view {
    width: 100%;
    max-width: 1050px;
    margin: 0 auto;
    box-sizing: border-box;
}

.album-loading-screen {
    width: 100%;
    padding: 80px 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s ease;
}

.photo-wall {
    column-count: 2; 
    column-gap: 14px;
    width: 100%;
    max-width: 1050px;
    margin-top: 20px;
    box-sizing: border-box;
}

@media (min-width: 769px) {
    .photo-wall { 
        column-count: 3; 
        column-gap: 18px;
    }
}

.photo-wall-item {
    break-inside: avoid;
    -webkit-column-break-inside: avoid;
    margin-bottom: 16px;
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    background: var(--line-color);
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(0,0,0,0.06);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.photo-wall-item img {
    width: 100%;
    display: block;
    transition: transform 0.35s ease;
}

.photo-wall-item:hover img { 
    transform: scale(1.04); 
}

.photo-wall-caption {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    padding: 10px 12px;
    font-size: 13px;
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(to top, rgba(0,0,0,0.75), transparent);
    opacity: 0;
    transition: opacity 0.2s ease;
    pointer-events: none;
}

.photo-wall-caption * {
    pointer-events: auto;
}

.photo-wall-item:hover .photo-wall-caption { 
    opacity: 1; 
}

.photo-wall-jump {
    text-decoration: underline;
    flex-shrink: 0;
    margin-left: 8px;
    font-size: 12px;
}

.photo-wall-jump:hover {
    color: #ff7875;
}

@media (max-width: 768px) {
    .photo-wall-caption { 
        opacity: 1; 
        background: linear-gradient(to top, rgba(0,0,0,0.65), transparent); 
    }
    .photo-wall { 
        column-count: 2; 
        column-gap: 10px;
    }
    .photo-wall-item {
        margin-bottom: 10px;
        border-radius: 8px;
    }
}