/* ===== 移动端全面优化 ===== */

/* 0. 全局复选框样式 */
@media (max-width: 768px) {
    input[type="checkbox"] {
        width: 18px !important;
        height: 18px !important;
        min-width: 18px !important;
        accent-color: var(--primary) !important;
    }
    
    /* 管理后台登录页复选框优化 */
    .admin-login-container input[type="checkbox"] {
        width: 22px !important;
        height: 22px !important;
        min-width: 22px !important;
        accent-color: #FF6B9D !important;
        cursor: pointer !important;
        margin: 0 !important;
        padding: 0 !important;
    }
    
    .admin-login-container .login-remember {
        display: flex !important;
        align-items: center !important;
        gap: 10px !important;
        margin-bottom: 20px !important;
        cursor: pointer !important;
    }
    
    .admin-login-container .login-remember span {
        font-size: 1rem !important;
        color: #555 !important;
    }
}

/* 1. 修改密码面板样式 - 全局定义 */
.password-panel {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.password-panel.show {
    opacity: 1;
    visibility: visible;
}

.password-panel-inner {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.password-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-light);
}

.password-panel-header h3 {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
}

.password-panel-header .header-icon {
    font-size: 1.3rem;
}

.password-panel-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #999;
    padding: 4px;
    line-height: 1;
    transition: color 0.2s;
}

.password-panel-close:hover {
    color: #333;
}

.password-panel-body {
    padding: 24px;
}

.password-field {
    margin-bottom: 20px;
}

.password-field:last-of-type {
    margin-bottom: 0;
}

.password-field-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    color: #555;
    margin-bottom: 8px;
}

.password-field-label .field-icon {
    font-size: 1rem;
}

.password-field-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.password-field-input {
    width: 100%;
    padding: 12px 45px 12px 14px;
    border: 1.5px solid #e0e0e0;
    border-radius: 10px;
    font-size: 0.95rem;
    transition: all 0.2s;
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.password-field-input:focus {
    border-color: #FF6B9D;
    box-shadow: 0 0 0 3px rgba(255, 107, 157, 0.1);
    background: var(--bg-card);
    color: var(--text-primary);
    outline: none;
}

.password-visibility-btn {
    position: absolute;
    right: 10px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    font-size: 1.1rem;
    color: #999;
    transition: color 0.2s;
}

.password-visibility-btn:hover {
    color: #666;
}

.password-strength-meter {
    margin-top: 8px;
}

.strength-meter-bar {
    height: 4px;
    background: #e0e0e0;
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 4px;
}

.strength-meter-fill {
    height: 100%;
    width: 0%;
    transition: all 0.3s;
    border-radius: 2px;
}

.strength-meter-fill.weak {
    width: 33%;
    background: #EF4444;
}

.strength-meter-fill.medium {
    width: 66%;
    background: #F59E0B;
}

.strength-meter-fill.strong {
    width: 100%;
    background: #10B981;
}

.strength-meter-text {
    font-size: 0.8rem;
    color: #999;
}

.password-panel-footer {
    display: flex;
    gap: 12px;
    padding: 20px 24px;
    border-top: 1px solid #f0f0f0;
}

.password-panel-footer .btn-cancel,
.password-panel-footer .btn-confirm {
    flex: 1;
    padding: 12px;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

.password-panel-footer .btn-cancel {
    background: #f5f5f5;
    color: #666;
}

.password-panel-footer .btn-cancel:hover {
    background: #e8e8e8;
}

.password-panel-footer .btn-confirm {
    background: linear-gradient(135deg, #FF6B9D 0%, #FF8A80 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(255, 107, 157, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.password-panel-footer .btn-confirm:hover {
    box-shadow: 0 6px 18px rgba(255, 107, 157, 0.4);
    transform: translateY(-1px);
}

.password-panel-footer .btn-confirm:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* 1. 弹窗/模态框优化 - 防止全屏 */
@media (max-width: 768px) {
    /* 修改密码面板移动端优化 */
    .password-panel {
        align-items: flex-start !important;
        padding-top: 50px !important;
        padding-bottom: 20px !important;
    }
    
    .password-panel-inner {
        max-height: 85vh !important;
        width: 92% !important;
        border-radius: 14px !important;
    }
    
    .password-panel-header {
        padding: 16px 18px !important;
    }
    
    .password-panel-header h3 {
        font-size: 1.1rem !important;
    }
    
    .password-panel-body {
        padding: 18px !important;
    }
    
    .password-field-input {
        padding: 11px 42px 11px 12px !important;
        font-size: 0.9rem !important;
    }
    
    .password-panel-footer {
        padding: 16px 18px !important;
        flex-direction: column !important;
        gap: 8px !important;
    }
    
    .password-panel-footer .btn-cancel,
    .password-panel-footer .btn-confirm {
        width: 100% !important;
        padding: 11px !important;
    }
    
    /* 其他模态框优化 */
    .modal-overlay {
        padding: 16px !important;
        align-items: flex-start !important;
        padding-top: 60px !important;
    }
    
    .modal-content,
    .modal {
        max-width: 95vw !important;
        width: 100% !important;
        max-height: 85vh !important;
        margin: 0 auto !important;
        border-radius: 16px !important;
        overflow: hidden !important;
    }
    
    .modal-header {
        padding: 16px 20px !important;
    }
    
    .modal-body {
        padding: 16px 20px !important;
        max-height: 60vh !important;
        overflow-y: auto !important;
    }
    
    .modal-footer {
        padding: 12px 20px !important;
        flex-direction: column !important;
        gap: 8px !important;
    }
    
    .modal-footer .btn {
        width: 100% !important;
    }
}

/* 2. Toast提示优化 - 防止过大 */
@media (max-width: 768px) {
    .toast {
        max-width: 85vw !important;
        width: auto !important;
        min-width: 120px !important;
        padding: 10px 16px !important;
        font-size: 0.85rem !important;
        white-space: normal !important;
        word-wrap: break-word !important;
        text-align: center !important;
        line-height: 1.4 !important;
        left: 50% !important;
        transform: translateX(-50%) translateY(-10px) !important;
        border-radius: 12px !important;
    }
    
    .toast.show {
        transform: translateX(-50%) translateY(0) !important;
    }
}

/* 3. 登录/注册页面按钮优化 - 精致圆润风格 */
@media (max-width: 768px) {
    .auth-card {
        padding: 28px 22px !important;
        margin: 24px 16px !important;
        border-radius: 20px !important;
        background: linear-gradient(180deg, #ffffff 0%, #fff9fb 100%) !important;
        box-shadow: 0 8px 32px rgba(255, 107, 157, 0.1), 0 2px 8px rgba(0, 0, 0, 0.04) !important;
    }

    .auth-title {
        font-size: 1.55rem !important;
        font-weight: 700 !important;
        background: linear-gradient(135deg, #FF6B9D 0%, #FF8A80 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        letter-spacing: 0.5px;
    }

    .auth-subtitle {
        font-size: 0.9rem !important;
        color: var(--text-secondary);
        margin-top: 6px !important;
    }

    /* 输入框 - 统一圆角与精致边框（排除搜索框） */
    .form-input,
    .input,
    input[type="text"]:not(.search-input):not(#searchInput),
    input[type="password"],
    input[type="email"],
    input[type="tel"],
    select,
    textarea {
        padding: 13px 16px !important;
        font-size: 0.95rem !important;
        height: auto !important;
        min-height: 48px;
        border-radius: 12px !important;
        border: 1.5px solid #f0e6ea !important;
        background: #faf7f9 !important;
        transition: all 0.25s ease !important;
    }

    /* 搜索框 - 手机端超紧凑 */
    .search-bar {
        padding: 8px 14px !important;
        margin-bottom: 10px !important;
        gap: 6px !important;
        border: 1px solid rgba(0,0,0,0.08) !important;
        min-height: 40px !important;
        height: auto !important;
        border-radius: 20px !important;
        transform: none !important;
        background: var(--bg-card) !important;
        color: var(--text-primary) !important;
        border: 1px solid var(--border-light) !important;
        box-shadow: var(--shadow-sm) !important;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        transition: all 0.3s ease !important;
    }

    .search-bar::before { display: none !important; }

    .search-bar:focus-within {
        transform: none !important;
        box-shadow: 0 1px 8px rgba(255, 107, 157, 0.12) !important;
        border-color: var(--primary) !important;
        background: var(--bg-card) !important;
    }

    .search-bar:focus-within::before { display: none !important; }

    .search-bar input[type="text"],
    .search-input,
    input.search-input,
    #searchInput {
        padding: 0 4px !important;
        margin: 0 !important;
        font-size: 0.9rem !important;
        min-height: auto !important;
        height: auto !important;
        line-height: 1.4 !important;
        border-radius: 0 !important;
        border: none !important;
        background: transparent !important;
        box-shadow: none !important;
        outline: none !important;
        -webkit-appearance: none !important;
        appearance: none !important;
        font-weight: 500 !important;
    }

    .search-bar svg {
        width: 16px !important;
        height: 16px !important;
        flex-shrink: 0 !important;
        margin-left: 0 !important;
        color: #bbb !important;
        filter: none !important;
    }

    .search-clear {
        width: 20px !important;
        height: 20px !important;
        font-size: 0.6rem !important;
        margin-right: 0 !important;
        background: #f0f0f0 !important;
        color: #999 !important;
        border-radius: 50% !important;
        transition: all 0.2s ease !important;
    }

    .search-clear:active {
        transform: scale(0.85) !important;
    }

    .search-input::placeholder {
        font-size: 0.82rem !important;
        color: #ccc !important;
        font-weight: 400 !important;
    }

    .form-input:focus,
    .input:focus,
    input:focus,
    select:focus,
    textarea:focus {
        border-color: #FF6B9D !important;
        box-shadow: 0 0 0 4px rgba(255, 117, 165, 0.18) !important;
        background: var(--bg-card) !important;
        color: var(--text-primary) !important;
        outline: none !important;
    }

    .search-input:focus,
    #searchInput:focus {
        border-color: transparent !important;
        box-shadow: none !important;
        background: transparent !important;
        outline: none !important;
    }

    /* 移动端签到（已移至个人主页） */

    /* 编辑资料返回按钮 */
    .edit-profile-back {
        margin-bottom: 10px !important;
    }

    .edit-profile-back-btn {
        padding: 6px 16px !important;
        font-size: 0.78rem !important;
        border-radius: 99px !important;
    }

    /* 移动端意见反馈美化 */
    #feedbackToggleBtn {
        border-radius: 14px !important;
        padding: 14px 18px !important;
        position: relative !important;
        overflow: hidden !important;
    }

    #feedbackToggleBtn::after {
        display: none !important;
        content: none !important;
    }

    #feedbackInlineForm {
        border-radius: 14px !important;
        padding: 18px 16px !important;
        position: relative !important;
        background: linear-gradient(135deg, #fff8fa 0%, #f8f4ff 100%) !important;
        border: 1px solid rgba(255, 107, 157, 0.15) !important;
        box-shadow: 0 4px 20px rgba(255, 107, 157, 0.08) !important;
    }

    #feedbackInlineForm::before {
        content: '' !important;
        position: absolute !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        height: 3px !important;
        background: linear-gradient(90deg, #FF6B9D, #C084FC, #60A5FA) !important;
        border-radius: 14px 14px 0 0 !important;
    }

    #feedbackInlineForm select,
    #feedbackInlineForm input,
    #feedbackInlineForm textarea {
        border-radius: 12px !important;
        padding: 12px 14px !important;
        border: 1.5px solid rgba(0,0,0,0.06) !important;
        background: #fff !important;
        font-size: 0.88rem !important;
        transition: all 0.2s !important;
    }

    #feedbackInlineForm select:focus,
    #feedbackInlineForm input:focus,
    #feedbackInlineForm textarea:focus {
        border-color: #C084FC !important;
        box-shadow: 0 0 0 4px rgba(192,132,252,0.12) !important;
    }

    #feedbackInlineForm textarea {
        min-height: 90px !important;
    }

    #fbSubmitBtn {
        border-radius: 12px !important;
        padding: 13px !important;
        font-size: 0.95rem !important;
        box-shadow: 0 4px 16px rgba(255,107,157,0.25) !important;
    }

    #fbSubmitBtn:active {
        transform: scale(0.97) !important;
    }

    #fbHistory {
        font-size: 0.82rem !important;
    }

    /* 按钮 - 渐变精致风格 */
    .btn-primary,
    .btn-register,
    .btn-register-submit,
    .btn-login {
        padding: 13px 24px !important;
        font-size: 0.96rem !important;
        height: auto !important;
        min-height: 50px;
        border-radius: 14px !important;
        font-weight: 600 !important;
        letter-spacing: 0.5px;
        transition: all 0.3s ease !important;
    }

    .btn-primary,
    .btn-register,
    .btn-register-submit {
        background: linear-gradient(135deg, #FF6B9D 0%, #FF8A80 100%) !important;
        box-shadow: 0 4px 15px rgba(255, 107, 157, 0.35), 0 2px 6px rgba(255, 107, 157, 0.15) !important;
        color: #fff !important;
        border: none !important;
    }

    .btn-primary:hover,
    .btn-register:hover,
    .btn-register-submit:hover {
        box-shadow: 0 6px 22px rgba(255, 107, 157, 0.45), 0 3px 10px rgba(255, 107, 157, 0.25) !important;
        transform: translateY(-2px) !important;
        background: linear-gradient(135deg, #FF558B 0%, #FF7A70 100%) !important;
    }

    .btn-login {
        background: linear-gradient(135deg, #ffffff 0%, #fffaf5 100%) !important;
        box-shadow: 0 3px 12px rgba(255, 107, 157, 0.18), 0 1px 4px rgba(255, 107, 157, 0.08) !important;
        border: 1.5px solid rgba(255, 107, 157, 0.25) !important;
        color: #FF6B9D !important;
    }

    .btn-login:hover {
        box-shadow: 0 5px 18px rgba(255, 107, 157, 0.28), 0 2px 8px rgba(255, 107, 157, 0.14) !important;
        transform: translateY(-2px) !important;
        border-color: #FF6B9D !important;
    }

    /* 表单组间距 */
    .form-group {
        margin-bottom: 18px !important;
    }
    
    /* 导航栏登录/注册按钮 - 移动端隐藏，用底部Tab替代 */
    .navbar .nav-auth {
        display: none !important;
    }
    
    /* 按钮尺寸定义（其他场景使用） */
    .navbar .btn-login {
        padding: 4px 10px !important;
        font-size: 0.72rem !important;
        font-weight: 500 !important;
        border-width: 1px !important;
        border-radius: 14px !important;
        box-shadow: none !important;
    }

    .navbar .btn-register {
        padding: 4px 10px !important;
        font-size: 0.72rem !important;
        font-weight: 500 !important;
        border-radius: 14px !important;
        box-shadow: 0 1px 4px rgba(255, 107, 157, 0.2) !important;
    }

    .form-group label {
        font-size: 0.88rem !important;
        font-weight: 600 !important;
        color: #444 !important;
        margin-bottom: 6px !important;
        display: block !important;
    }

    /* 链接样式 */
    .auth-link {
        font-size: 0.88rem !important;
        padding: 10px 0 !important;
        color: #FF6B9D !important;
        font-weight: 500 !important;
        transition: all 0.2s ease !important;
    }

    .auth-link:hover {
        color: #FF558B !important;
    }

    /* 验证码输入区域 */
    .captcha-row {
        display: flex !important;
        gap: 10px !important;
        align-items: center !important;
    }

    .captcha-row input {
        flex: 1 !important;
    }

    .captcha-img {
        height: 48px !important;
        min-width: 90px !important;
        border-radius: 10px !important;
    }
}

/* 认证页面（登录/注册）移动端优化 */
@media (max-width: 480px) {
    .auth-page {
        padding: 16px 12px !important;
        min-height: calc(100vh - 90px) !important;
    }
    
    .auth-card {
        padding: 20px 16px !important;
        max-width: 100% !important;
        margin: 0 auto !important;
    }
    
    .auth-emoji {
        font-size: 2.2rem !important;
    }
    
    .auth-title {
        font-size: 1.4rem !important;
    }
    
    .auth-subtitle {
        font-size: 0.85rem !important;
    }
    
    .auth-form .form-group {
        margin-bottom: 14px !important;
    }
    
    .auth-form .form-input {
        height: 46px !important;
        font-size: 1rem !important;
        padding: 0 12px !important;
        border-radius: 10px !important;
    }
    
    .auth-remember {
        margin: 10px 0 16px !important;
        font-size: 0.9rem !important;
        display: flex !important;
        align-items: center !important;
        gap: 10px !important;
        cursor: pointer !important;
        padding: 4px 0 !important;
    }
    
    .auth-remember input[type="checkbox"] {
        width: 20px !important;
        height: 20px !important;
        min-width: 20px !important;
        accent-color: #FF6B9D !important;
        cursor: pointer !important;
        vertical-align: middle !important;
        margin: 0 !important;
        padding: 0 !important;
    }
    
    .auth-remember span {
        vertical-align: middle !important;
        user-select: none !important;
        -webkit-user-select: none !important;
    }
    
    .auth-form .btn-login,
    .auth-form .btn-login-submit,
    .auth-form .btn-register,
    .auth-form .btn-register-submit {
        height: 48px !important;
        font-size: 1rem !important;
        border-radius: 12px !important;
        width: 100% !important;
    }
    
    .auth-link {
        margin-top: 14px !important;
        font-size: 0.85rem !important;
    }
    
    .beian-text {
        margin-top: 16px !important;
        font-size: 0.7rem !important;
    }
}

/* 4. 管理后台移动端优化 */
@media (max-width: 768px) {
    /* 侧边栏优化 */
    .admin-sidebar {
        width: 280px !important;
        max-width: 85vw !important;
    }
    
    /* 主内容区优化 */
    .admin-main {
        width: 100% !important;
        overflow-x: hidden !important;
    }
    
    .admin-panel {
        padding: 16px 12px !important;
    }
    
    /* 顶栏优化 */
    .admin-topbar {
        padding: 12px !important;
    }
    
    .topbar-search {
        max-width: 120px !important;
        width: 120px !important;
    }
    
    .topbar-search input {
        font-size: 0.8rem !important;
        padding: 6px 10px !important;
        height: 32px !important;
    }
    
    /* 统计卡片优化 */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 10px !important;
    }
    
    .stat-card {
        padding: 14px 12px !important;
    }
    
    .stat-value {
        font-size: 1.3rem !important;
    }
    
    .stat-label {
        font-size: 0.75rem !important;
    }
    
    /* 表格优化 */
    .admin-table-wrapper {
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
        margin: 0 -12px !important;
        padding: 0 12px !important;
    }
    
    .admin-table {
        min-width: 600px !important;
        font-size: 0.85rem !important;
    }
    
    .admin-table th,
    .admin-table td {
        padding: 10px 12px !important;
        font-size: 0.8rem !important;
    }
    
    /* 筛选按钮优化 */
    .filter-bar-admin {
        overflow-x: auto !important;
        flex-wrap: nowrap !important;
        gap: 8px !important;
        padding-bottom: 8px !important;
        -webkit-overflow-scrolling: touch !important;
    }
    
    .filter-bar-admin .filter-btn {
        flex: 0 0 auto !important;
        white-space: nowrap !important;
        padding: 8px 14px !important;
        font-size: 0.82rem !important;
    }
    
    /* 操作按钮优化 */
    .table-actions {
        display: flex !important;
        flex-wrap: wrap !important;
        gap: 6px !important;
    }
    
    .action-btn {
        padding: 6px 10px !important;
        font-size: 0.75rem !important;
    }
    
    /* 模态框优化 */
    .modal-overlay {
        padding: 12px !important;
    }
    
    .modal {
        max-width: 95vw !important;
        max-height: 90vh !important;
    }
    
    /* 分页优化 */
    .admin-pagination {
        flex-wrap: wrap !important;
        gap: 6px !important;
    }
    
    .page-btn {
        padding: 8px 12px !important;
        font-size: 0.8rem !important;
        min-width: 36px !important;
        min-height: 36px !important;
    }
}

/* 5. 小屏手机额外优化 */
@media (max-width: 480px) {
    /* 分页控件移动端优化 */
    .pagination-container {
        flex-wrap: wrap !important;
        gap: 6px !important;
        padding: 10px !important;
    }
    
    .page-info {
        font-size: 0.8rem !important;
        order: -1 !important;
        width: 100% !important;
        text-align: center !important;
        margin-bottom: 6px !important;
    }
    
    .page-btn {
        min-width: 28px !important;
        height: 28px !important;
        font-size: 0.8rem !important;
    }
    
    .page-jump-input {
        width: 50px !important;
        height: 28px !important;
        font-size: 0.8rem !important;
    }
    
    .admin-panel {
        padding: 12px 8px !important;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr !important;
        gap: 8px !important;
    }
    
    .stat-card {
        padding: 12px 10px !important;
    }
    
    .stat-value {
        font-size: 1.2rem !important;
    }
    
    .stat-label {
        font-size: 0.7rem !important;
    }
    
    .admin-table {
        min-width: 500px !important;
        font-size: 0.75rem !important;
    }
    
    .admin-table th,
    .admin-table td {
        padding: 8px 10px !important;
        font-size: 0.75rem !important;
    }
    
    .filter-bar-admin .filter-btn {
        padding: 7px 12px !important;
        font-size: 0.78rem !important;
    }
    
    .action-btn {
        padding: 5px 8px !important;
        font-size: 0.7rem !important;
    }
}

/* 6. 点歌页面底部导航与内容留白 */
@media (max-width: 768px) {
    /* 页面实际使用 .bottom-tab-bar，统一由公共底部导航样式负责定位 */
    body.radio-page .main-content {
        padding-bottom: calc(104px + env(safe-area-inset-bottom, 0px)) !important;
        scroll-padding-bottom: calc(104px + env(safe-area-inset-bottom, 0px));
    }
}

/* 13. 点歌页第三轮视觉整理：桌面有层次，手机优先保证阅读和触控 */
body.radio-page .main-content {
    max-width: 820px;
    width: calc(100% - 32px);
}

body.radio-page .radio-header {
    text-align: left;
    padding: 4px 2px 18px;
    margin-bottom: 24px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.18);
}

body.radio-page .radio-title {
    font-size: clamp(1.35rem, 2vw, 1.65rem);
    letter-spacing: -0.02em;
}

body.radio-page .radio-subtitle {
    margin-top: 6px;
    font-size: 0.88rem;
    color: var(--text-secondary);
}

body.radio-page .radio-section {
    margin-bottom: 26px;
}

body.radio-page .section-title {
    margin-bottom: 12px;
    font-size: 1.08rem;
    letter-spacing: -0.01em;
}

body.radio-page .hot-songs-section {
    padding: 20px;
    border: 1px solid rgba(148, 163, 184, 0.18);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.62);
    box-shadow: 0 12px 34px rgba(31, 41, 55, 0.055);
}

body.radio-page .hot-songs-section .radio-intro {
    margin: 0 0 16px;
    color: var(--text-secondary) !important;
    font-size: 0.86rem !important;
    line-height: 1.55;
}

body.radio-page .hot-songs-list {
    gap: 8px;
}

body.radio-page .hot-song-item {
    display: grid;
    grid-template-columns: 38px minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    min-height: 68px;
    box-sizing: border-box;
    padding: 10px 12px 10px 10px;
    border: 1px solid rgba(148, 163, 184, 0.16);
    border-radius: 15px;
    background: rgba(255, 255, 255, 0.86);
    box-shadow: 0 3px 12px rgba(31, 41, 55, 0.035);
    transform: none;
}

body.radio-page .hot-song-item:hover {
    transform: translateY(-1px);
    border-color: rgba(255, 107, 157, 0.2);
    box-shadow: 0 8px 20px rgba(31, 41, 55, 0.07);
}

body.radio-page .hot-song-rank {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: #f3f4f8;
    color: #64748b;
    font-size: 0.92rem;
    font-weight: 800;
}

body.radio-page .hot-song-rank.rank-1 {
    background: #fff3d6;
    color: #a16207;
}

body.radio-page .hot-song-rank.rank-2 {
    background: #eef2f7;
    color: #64748b;
}

body.radio-page .hot-song-rank.rank-3 {
    background: #ffeadf;
    color: #c2410c;
}

body.radio-page .hot-song-content {
    min-width: 0;
}

body.radio-page .hot-song-name {
    display: block;
    min-width: 0;
    margin-bottom: 5px;
    overflow: hidden;
    color: var(--text-primary);
    font-size: 0.98rem;
    font-weight: 700;
    line-height: 1.35;
    text-overflow: ellipsis;
    white-space: nowrap;
}

body.radio-page .hot-song-artist {
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
}

body.radio-page .hot-song-meta {
    min-width: 0;
    gap: 6px;
    overflow: hidden;
    font-size: 0.74rem;
    line-height: 1.35;
}

body.radio-page .hot-song-author,
body.radio-page .hot-song-recipient {
    max-width: 42%;
    overflow: hidden;
    padding: 3px 8px;
    border: 1px solid rgba(148, 163, 184, 0.13);
    border-radius: 7px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

body.radio-page .hot-song-author {
    background: #f5f6f8;
    color: var(--text-secondary);
}

body.radio-page .hot-song-recipient {
    background: #fff2f7;
    border-color: rgba(255, 107, 157, 0.12);
    color: #d9467a;
}

body.radio-page .hot-song-message {
    max-width: 100%;
    margin-top: 5px;
    overflow: hidden;
    color: var(--text-light);
    font-size: 0.74rem;
    line-height: 1.35;
    text-overflow: ellipsis;
    white-space: nowrap;
}

body.radio-page .hot-song-vote {
    align-self: center;
}

body.radio-page .hot-song-vote .vote-btn {
    display: inline-flex;
    min-width: 58px;
    min-height: 38px;
    flex-direction: row;
    align-items: center;
    justify-content: center;
    gap: 4px;
    padding: 6px 9px;
    border: 1px solid rgba(255, 107, 157, 0.18);
    border-radius: 10px;
    background: #fff7fb;
    box-shadow: none;
}

body.radio-page .hot-song-vote .vote-btn:hover {
    background: #fff0f6;
    box-shadow: 0 5px 12px rgba(255, 107, 157, 0.12);
    transform: translateY(-1px);
}

body.radio-page .hot-song-vote .vote-icon {
    font-size: 0.95rem;
}

body.radio-page .hot-song-vote .vote-count {
    font-size: 0.78rem;
}

/* 签到卡：固定侧栏和移动端主内容共用一套紧凑结构 */
#sideCheckin {
    width: 148px;
    min-width: 148px;
    box-sizing: border-box;
    padding: 11px 10px;
    align-items: stretch;
    gap: 0;
    border: 1px solid rgba(80, 154, 119, 0.18) !important;
    border-radius: 17px;
    background: #f3faf6 !important;
    box-shadow: 0 8px 22px rgba(73, 156, 121, 0.11) !important;
}

#sideCheckin:hover {
    transform: translateY(-2px);
    box-shadow: 0 11px 25px rgba(73, 156, 121, 0.15) !important;
}

#sideCheckin .checkin-card-heading {
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 10px;
}

#sideCheckin .side-card-icon {
    display: flex;
    width: 30px;
    height: 30px;
    flex: 0 0 30px;
    align-items: center;
    justify-content: center;
    margin: 0;
    border-radius: 9px;
    background: rgba(255, 255, 255, 0.82);
    font-size: 1.15rem;
    filter: none;
}

#sideCheckin .checkin-card-copy {
    min-width: 0;
    padding-top: 1px;
}

#sideCheckin .side-card-title {
    overflow: hidden;
    color: var(--text-primary);
    font-size: 0.84rem;
    line-height: 1.3;
    text-align: left;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#sideCheckin .checkin-card-subtitle {
    margin-top: 3px;
    overflow: hidden;
    color: var(--text-secondary);
    font-size: 0.59rem;
    line-height: 1.35;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#sideCheckin .side-card-body {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 0;
}

#sideCheckin .checkin-action-row,
#sideCheckin .checkin-status-row {
    display: flex;
    width: 100%;
    min-height: 38px;
    box-sizing: border-box;
    flex-direction: row;
    align-items: center !important;
    justify-content: space-between;
    gap: 6px !important;
    padding: 4px 5px;
    border: 1px solid rgba(231, 186, 91, 0.22);
    border-radius: 12px;
    background: rgba(255, 252, 246, 0.82);
}

#sideCheckin .checkin-streak {
    color: var(--text-secondary);
    font-size: 0.68rem;
    line-height: 1.2;
    white-space: nowrap;
}

#sideCheckin .checkin-streak strong {
    color: #b7791f;
    font-size: 1rem;
    font-weight: 800;
}

#sideCheckin .btn-checkin {
    min-width: 43px;
    min-height: 28px;
    padding: 4px 8px !important;
    border: 1px solid #acd6c0;
    border-radius: 8px;
    background: #dff2e8;
    color: #287256;
    box-shadow: none;
    font-size: 0.7rem;
    font-weight: 700;
}

#sideCheckin .btn-checkin:hover {
    border-color: #8fc6aa;
    background: #d2ecdf;
    box-shadow: 0 4px 9px rgba(73, 156, 121, 0.12);
    transform: translateY(-1px);
}

#sideCheckin .checkin-done {
    color: #398866;
    font-size: 0.7rem;
    white-space: nowrap;
}

.mobile-checkin-slot {
    display: none;
}

[data-theme="dark"] body.radio-page .hot-songs-section {
    border-color: rgba(255, 255, 255, 0.08);
    background: rgba(42, 31, 51, 0.68);
    box-shadow: 0 12px 34px rgba(0, 0, 0, 0.18);
}

[data-theme="dark"] body.radio-page .hot-song-item {
    border-color: rgba(255, 255, 255, 0.07);
    background: rgba(42, 31, 51, 0.82);
}

[data-theme="dark"] body.radio-page .hot-song-author {
    background: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] body.radio-page .hot-song-vote .vote-btn {
    border-color: rgba(255, 107, 157, 0.25);
    background: rgba(255, 107, 157, 0.08);
}

[data-theme="dark"] #sideCheckin {
    border-color: var(--border-light) !important;
    background: var(--bg-card) !important;
}

@media (max-width: 768px) {
    body.radio-page .main-content {
        width: auto;
        max-width: none;
    }

    body.radio-page .radio-header {
        padding: 2px 0 14px;
        margin-bottom: 18px;
    }

    body.radio-page .radio-title {
        font-size: 1.28rem;
    }

    body.radio-page .radio-subtitle {
        font-size: 0.8rem;
    }

    body.radio-page .hot-songs-section {
        padding: 14px 0 0;
        border: 0;
        border-radius: 0;
        background: transparent;
        box-shadow: none;
    }

    body.radio-page .hot-songs-section .radio-intro {
        margin-bottom: 12px;
        font-size: 0.79rem !important;
    }

    body.radio-page .hot-songs-list {
        gap: 8px;
    }

    body.radio-page .hot-song-item {
        grid-template-columns: 30px minmax(0, 1fr) auto;
        gap: 8px;
        min-height: 62px;
        padding: 9px 9px 9px 8px;
        border-radius: 13px;
    }

    body.radio-page .hot-song-rank {
        width: 30px;
        height: 30px;
        border-radius: 10px;
        font-size: 0.8rem;
    }

    body.radio-page .hot-song-name {
        margin-bottom: 4px;
        font-size: 0.89rem;
        line-height: 1.3;
    }

    body.radio-page .hot-song-artist {
        display: block;
        overflow: hidden;
        margin-top: 2px;
        font-size: 0.74rem;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    body.radio-page .hot-song-meta {
        gap: 4px;
        font-size: 0.69rem;
    }

    body.radio-page .hot-song-author,
    body.radio-page .hot-song-recipient {
        max-width: 45%;
        padding: 2px 6px;
    }

    body.radio-page .hot-song-message {
        margin-top: 4px;
        font-size: 0.69rem;
    }

    body.radio-page .hot-song-vote .vote-btn {
        min-width: 48px;
        min-height: 36px;
        gap: 3px;
        padding: 5px 7px;
        border-radius: 9px;
    }

    body.radio-page .hot-song-vote .vote-icon {
        font-size: 0.86rem;
    }

    body.radio-page .hot-song-vote .vote-count {
        font-size: 0.72rem;
    }

    .mobile-checkin-slot {
        display: block;
        margin: 0 0 14px;
    }

    .mobile-checkin-slot #sideCheckin {
        width: 100%;
        min-width: 0;
        padding: 11px 12px;
        border-radius: 16px;
    }

    .mobile-checkin-slot #sideCheckin .checkin-card-heading {
        align-items: center;
        margin-bottom: 8px;
    }

    .mobile-checkin-slot #sideCheckin .checkin-card-copy {
        flex: 1;
    }

    .mobile-checkin-slot #sideCheckin .checkin-card-subtitle {
        font-size: 0.62rem;
    }

    .mobile-checkin-slot #sideCheckin .side-card-body {
        flex: 1 1 auto;
        width: 100%;
        min-width: 0;
        max-width: none;
        margin-left: 0;
    }
}

/* 签到请求失败时保留明确的可恢复入口，不让卡片永久停留在“加载中”。 */
.checkin-error {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    min-width: 0;
    padding: 7px 2px 1px;
    color: var(--text-secondary);
    font-size: 0.72rem;
    line-height: 1.35;
}

.checkin-error > span {
    min-width: 0;
    overflow-wrap: anywhere;
}

.checkin-retry {
    flex: 0 0 auto;
    padding: 3px 8px;
    border: 1px solid rgba(91, 172, 142, 0.28);
    border-radius: 7px;
    background: rgba(255, 255, 255, 0.72);
    color: #398866;
    font-size: 0.7rem;
    cursor: pointer;
}

.checkin-retry:hover {
    background: rgba(255, 255, 255, 0.96);
}

@media (max-width: 360px) {
    body.radio-page .hot-song-item {
        grid-template-columns: 28px minmax(0, 1fr) auto;
        gap: 7px;
        padding-right: 7px;
    }

    body.radio-page .hot-song-rank {
        width: 28px;
        height: 28px;
    }

    body.radio-page .hot-song-vote .vote-btn {
        min-width: 44px;
        padding: 5px 6px;
    }

    .mobile-checkin-slot #sideCheckin .side-card-body {
        min-width: 122px;
    }
}

/* 7. 触摸设备优化 */
@media (hover: none) and (pointer: coarse) {
    .btn,
    .action-btn,
    .filter-btn,
    .page-btn,
    .sidebar-link,
    input,
    select,
    textarea {
        min-height: 44px !important;
    }
    
    .btn-sm,
    .action-btn {
        min-height: 40px !important;
    }
}

/* 8. 防止横向滚动 */
@media (max-width: 768px) {
    html,
    body {
        overflow-x: hidden !important;
        width: 100% !important;
    }
    
    * {
        max-width: 100vw !important;
    }
}

/* 9. 输入框防键盘遮挡 */
@media (max-width: 768px) {
    /* 表单页面底部留白 */
    .form-page {
        padding-bottom: 100px !important;
    }
    
    /* 输入框聚焦时自动滚动 */
    input:focus,
    textarea:focus,
    select:focus {
        scroll-margin-bottom: 100px !important;
    }
    
    /* 模态框输入框优化 */
    .modal-overlay input:focus,
    .modal-overlay textarea:focus {
        scroll-margin-bottom: 200px !important;
    }
    
    /* 评论区输入框 */
    .comment-input-wrapper {
        position: relative;
        z-index: 100;
    }
    
    /* 底部固定输入栏 */
    .fixed-input-bar {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        background: var(--bg-card);
        padding: 12px 16px;
        padding-bottom: calc(12px + env(safe-area-inset-bottom));
        border-top: 1px solid var(--border-light);
        z-index: 999;
        box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
    }
}

/* 10. 移动端下拉刷新 */
@media (max-width: 768px) {
    .pull-refresh-indicator {
        position: fixed;
        top: calc(var(--navbar-height, 64px) + 6px);
        left: 50%;
        transform: translateX(-50%) translateY(-120px);
        display: flex;
        align-items: center;
        gap: 10px;
        padding: 8px 20px 8px 16px;
        background: var(--bg-glass);
        backdrop-filter: blur(16px);
        -webkit-backdrop-filter: blur(16px);
        border-radius: var(--radius-full);
        box-shadow: var(--shadow-lg);
        font-size: 0.82rem;
        font-weight: 500;
        color: var(--text-primary);
        transition: all 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
        opacity: 0;
        z-index: 999;
        pointer-events: none;
        border: 1px solid rgba(255, 107, 157, 0.15);
    }

    .pull-refresh-indicator.show {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }

    .pull-refresh-indicator .refresh-icon {
        display: block;
        color: var(--primary);
        transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
        flex-shrink: 0;
    }

    .pull-refresh-indicator .refresh-text {
        white-space: nowrap;
        transition: color 0.25s ease;
    }

    .pull-refresh-indicator.pull-ready .refresh-text {
        color: var(--primary);
    }

    .pull-refresh-indicator.refreshing .refresh-icon {
        animation: pullSpin 0.8s linear infinite;
    }

    @keyframes pullSpin {
        from { transform: rotate(0deg); }
        to { transform: rotate(360deg); }
    }
}

/* 11. 手机端操作体验优化 */
@media (max-width: 768px) {
    /* 左滑删除/操作提示 */
    .swipe-actions {
        position: absolute;
        right: 0;
        top: 0;
        bottom: 0;
        display: flex;
        align-items: center;
        gap: 8px;
        padding: 0 16px;
        transform: translateX(100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .swipe-actions.show {
        transform: translateX(0);
    }
    
    .swipe-action-btn {
        width: 60px;
        height: 60px;
        display: flex;
        align-items: center;
        justify-content: center;
        border: none;
        border-radius: 12px;
        font-size: 1.2rem;
        cursor: pointer;
        transition: all 0.2s ease;
    }
    
    .swipe-action-btn.delete {
        background: #FEE2E2;
        color: #EF4444;
    }
    
    .swipe-action-btn.edit {
        background: #DBEAFE;
        color: #3B82F6;
    }
    
    .swipe-action-btn:active {
        transform: scale(0.9);
    }
    
    /* 帖子卡片支持左滑 */
    .post-card {
        position: relative;
        overflow: hidden;
        touch-action: pan-y;
    }
    
    .post-card.swiping {
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    /* 双击点赞动画 */
    @keyframes doubleTapLike {
        0% { transform: scale(0); opacity: 1; }
        50% { transform: scale(1.2); opacity: 1; }
        100% { transform: scale(1); opacity: 0; }
    }
    
    .double-tap-heart {
        position: absolute;
        top: 50%;
        left: 50%;
        transform: translate(-50%, -50%);
        font-size: 4rem;
        pointer-events: none;
        animation: doubleTapLike 0.8s ease-out forwards;
        z-index: 100;
    }
    
    /* 长按复制提示 */
    .long-press-hint {
        position: fixed;
        bottom: 100px;
        left: 50%;
        transform: translateX(-50%);
        background: rgba(0, 0, 0, 0.8);
        color: white;
        padding: 10px 20px;
        border-radius: 20px;
        font-size: 0.85rem;
        z-index: 9999;
        animation: fadeInOut 2s ease forwards;
    }
    
    @keyframes fadeInOut {
        0% { opacity: 0; transform: translateX(-50%) translateY(10px); }
        20% { opacity: 1; transform: translateX(-50%) translateY(0); }
        80% { opacity: 1; }
        100% { opacity: 0; }
    }
    
    /* 滚动进度条 */
    .scroll-progress {
        position: fixed;
        top: 0;
        left: 0;
        height: 3px;
        background: linear-gradient(90deg, var(--primary), var(--secondary));
        z-index: 11000;
        transition: width 0.1s ease;
    }
    
    /* 返回顶部按钮优化 */
    .back-to-top {
        position: fixed;
        bottom: 80px;
        right: 16px;
        width: 44px;
        height: 44px;
        background: var(--bg-card);
        border: 1px solid var(--border-light);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 1.2rem;
        color: var(--text-secondary);
        box-shadow: var(--shadow-md);
        cursor: pointer;
        transition: all 0.3s ease;
        z-index: 999;
        opacity: 0;
        transform: scale(0.8);
        pointer-events: none;
    }
    
    .back-to-top.show {
        opacity: 1;
        transform: scale(1);
        pointer-events: auto;
    }
    
    .back-to-top:active {
        transform: scale(0.9);
    }
    
    /* 触摸反馈增强 */
    .touch-ripple {
        position: relative;
        overflow: hidden;
    }
    
    .touch-ripple::after {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 0;
        height: 0;
        border-radius: 50%;
        background: rgba(255, 107, 157, 0.3);
        transform: translate(-50%, -50%);
        transition: width 0.6s, height 0.6s, opacity 0.6s;
        opacity: 0;
    }
    
    .touch-ripple:active::after {
        width: 200px;
        height: 200px;
        opacity: 1;
    }
    
    /* 图片预览优化 */
    .image-preview-modal img {
        touch-action: pan-x pan-y;
    }
    
    /* 输入框优化 - 排除checkbox和radio，保持原生样式 */
    input[type="text"],
    input[type="password"],
    input[type="email"],
    input[type="tel"],
    input[type="number"],
    input[type="search"],
    input[type="url"],
    textarea,
    select {
        -webkit-appearance: none;
        -moz-appearance: none;
        appearance: none;
    }

    /* 表情选择器移动端适配 */
    .emoji-picker {
        position: fixed !important;
        bottom: 80px !important;
        top: auto !important;
        left: 50% !important;
        transform: translateX(-50%);
        width: calc(100vw - 40px) !important;
        max-width: 360px;
        max-height: 45vh;
        z-index: 1000 !important;
    }

    .emoji-grid {
        grid-template-columns: repeat(7, 1fr) !important;
    }

    .emoji-item {
        width: 38px !important;
        height: 38px !important;
        font-size: 1.6rem !important;
    }

    .comment-input-wrapper {
        padding-bottom: 8px;
    }
    
    /* 防止文本选择干扰触摸操作 */
    .no-select {
        -webkit-user-select: none;
        user-select: none;
    }
    
    /* 可选择文本 */
    .selectable {
        -webkit-user-select: text;
        user-select: text;
    }

    /* 评论区移动端优化 */
    .comment-section {
        padding: 16px;
        border-radius: 14px;
        margin-top: 16px;
    }
    .comment-item {
        padding: 14px;
        gap: 10px;
    }
    .comment-item .comment-avatar {
        width: 36px;
        height: 36px;
    }
    .comment-input-wrapper {
        padding: 12px;
    }
    .comment-input {
        min-height: 56px;
        padding: 12px 14px;
        font-size: 0.9rem;
    }
    .comment-input-footer {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }
    .comment-tools {
        justify-content: flex-start;
    }
    .btn-comment-submit {
        width: 100%;
        justify-content: center;
        padding: 12px;
    }
    .emoji-picker {
        width: 280px;
        max-height: 240px;
    }
    .emoji-grid {
        grid-template-columns: repeat(7, 1fr);
    }
    .back-home-btn {
        width: 100%;
        justify-content: center;
        margin-bottom: 8px;
        font-size: 0.82rem;
    }
    .comment-reply-item {
        padding: 10px 12px;
    }
    .reply-avatar {
        width: 28px;
        height: 28px;
    }
    .comment-title {
        font-size: 1rem;
    }
    .comment-item .comment-text {
        font-size: 0.9rem;
    }
    .comment-sort-bar {
        flex-wrap: wrap;
        gap: 6px;
    }
}

@media (max-width: 400px) {
    .comment-section {
        padding: 12px;
        border-radius: 12px;
    }
    .comment-item {
        padding: 12px 10px;
        border-radius: 12px;
    }
    .comment-item .comment-avatar {
        width: 30px;
        height: 30px;
    }
    .comment-item .comment-text {
        font-size: 0.85rem;
    }
}

/* 9. 点歌页面移动端紧密排版优化 */
@media (max-width: 768px) {
    .radio-header {
        margin-bottom: 18px;
    }
    .radio-title {
        font-size: 1.25rem;
    }
    .radio-section {
        margin-bottom: 18px;
    }
    .section-title {
        font-size: 0.95rem;
        margin-bottom: 10px;
    }
    .radio-form-card {
        padding: 16px;
        border-radius: 14px;
    }
    .radio-form .form-group {
        margin-bottom: 10px;
    }
    .form-group .form-label {
        font-size: 0.85rem;
        margin-bottom: 4px;
    }
    .form-group .form-input,
    .form-group .form-textarea,
    .form-group .form-select {
        font-size: 0.9rem;
        padding: 10px 12px;
    }
    .form-group .form-textarea {
        min-height: 60px;
    }
    .radio-anonymous {
        margin: 10px 0;
    }
    .radio-anonymous .toggle-switch {
        width: 36px;
        height: 20px;
    }
    .radio-anonymous .toggle-slider {
        width: 36px;
        height: 20px;
    }
    .radio-anonymous .toggle-slider::before {
        width: 16px;
        height: 16px;
    }
    .radio-anonymous span:last-child {
        font-size: 0.85rem;
    }
    .form-actions {
        margin-top: 6px;
    }
    .form-actions .btn-publish {
        padding: 12px;
        font-size: 0.95rem;
    }
    .remaining-count {
        font-size: 0.8rem;
        padding: 6px 12px;
        margin-bottom: 10px;
    }

    /* 播放列表卡片 */
    .playlist {
        gap: 10px;
        max-height: none;
        padding-right: 0;
    }
    .playlist-item {
        border-radius: 12px;
    }
    .playlist-item .song-main {
        padding: 12px 14px 12px 10px;
        gap: 10px;
    }
    .playlist-item .song-index {
        width: 26px;
        height: 26px;
        font-size: 0.7rem;
        border-radius: 8px;
        flex-shrink: 0;
    }
    .playlist-item .song-name {
        font-size: 0.9rem;
    }
    .playlist-item .song-name::before {
        font-size: 0.85rem;
    }
    .playlist-item .song-artist {
        font-size: 0.75rem;
        padding: 1px 6px;
    }
    .playlist-item .song-footer {
        gap: 6px;
        margin-top: 6px;
        font-size: 0.72rem;
    }
    .playlist-item .song-author {
        font-size: 0.72rem;
        padding: 1px 8px;
    }
    .playlist-item .song-tag {
        font-size: 0.68rem;
        padding: 2px 8px;
    }
    .playlist-item .song-tag.to-whom {
        font-size: 0.68rem;
    }
    .playlist-item .song-msg-bubble {
        font-size: 0.75rem;
        padding: 6px 10px;
        margin-top: 6px;
        white-space: normal;
        text-overflow: clip;
        display: block;
    }
    .playlist-item .song-status-area {
        padding-right: 12px;
        min-width: auto;
        gap: 4px;
    }
    .playlist-item .song-status {
        font-size: 0.65rem;
        padding: 4px 10px;
        white-space: nowrap;
    }
    .playlist-item .song-status::before {
        display: none;
    }

    /* 热门歌曲 */
    .hot-songs-list {
        gap: 10px;
    }
    .hot-song-item {
        padding: 12px;
        gap: 10px;
        border-radius: 12px;
    }
    .hot-song-rank {
        width: 30px;
        height: 30px;
        font-size: 1rem;
    }
    .hot-song-content {
        min-width: 0;
    }
    .hot-song-name {
        font-size: 0.9rem;
        margin-bottom: 4px;
    }
    .hot-song-name .hot-song-artist {
        font-size: 0.78rem;
    }
    .hot-song-meta {
        gap: 8px;
        font-size: 0.72rem;
    }
    .hot-song-author,
    .hot-song-recipient,
    .hot-song-message {
        font-size: 0.72rem;
        padding: 2px 8px;
    }
    .hot-song-vote {
        flex-shrink: 0;
    }
    .hot-song-vote .vote-btn {
        padding: 6px 8px;
        font-size: 0.72rem;
    }
    .hot-song-vote .vote-icon {
        font-size: 0.85rem;
    }
    .hot-song-vote .vote-count {
        font-size: 0.75rem;
    }

    .radio-section p[style] {
        font-size: 0.8rem !important;
        margin-bottom: 10px !important;
    }

    /* 我的点歌记录 */
    #mySongsList .my-song-item {
        padding: 14px;
        gap: 10px;
    }
    #mySongsList .my-song-title {
        font-size: 0.9rem;
    }
    #mySongsList .my-song-title::before {
        font-size: 0.9rem;
    }
    #mySongsList .my-song-date {
        font-size: 0.72rem;
        padding: 2px 8px;
    }
    #mySongsList .my-song-status {
        font-size: 0.68rem;
        padding: 2px 10px;
    }
    #mySongsList .my-song-recipient {
        font-size: 0.75rem;
        padding: 3px 8px;
    }
    #mySongsList .my-song-msg {
        font-size: 0.75rem;
        padding: 4px 10px;
    }
    #mySongsList .my-song-cancel {
        padding: 8px 14px;
        font-size: 0.78rem;
    }
}

@media (max-width: 480px) {
    .radio-title {
        font-size: 1.1rem;
    }
    .radio-subtitle {
        font-size: 0.8rem;
    }
    .radio-form-card {
        padding: 12px;
        border-radius: 12px;
    }
    .form-group .form-input,
    .form-group .form-textarea,
    .form-group .form-select {
        font-size: 0.85rem;
        padding: 9px 10px;
    }
    .form-actions .btn-publish {
        padding: 11px;
        font-size: 0.9rem;
    }
    .playlist-item .song-main {
        padding: 10px 10px 10px 8px;
        gap: 8px;
    }
    .playlist-item .song-name {
        font-size: 0.85rem;
    }
    .playlist-item .song-footer {
        font-size: 0.68rem;
    }
    .playlist-item .song-status-area {
        padding-right: 8px;
    }
    .playlist-item .song-status {
        font-size: 0.6rem;
        padding: 3px 8px;
    }
    .hot-song-item {
        padding: 10px;
        gap: 8px;
    }
    .hot-song-name {
        font-size: 0.85rem;
    }
}

@media (max-width: 380px) {
    body.radio-page .playlist-item .song-main {
        flex-direction: column !important;
        align-items: flex-start;
    }
    .playlist-item .song-index {
        width: 22px;
        height: 22px;
        font-size: 0.65rem;
    }
    .playlist-item .song-status-area {
        flex-direction: row;
        padding: 0 10px 8px;
        justify-content: flex-end;
    }
}

/* 12. 点歌页移动端第二轮排版：减少标签堆叠，保持稳定的信息层级 */
@media (max-width: 768px) {
    body.radio-page .playlist-item {
        display: flex;
        flex-direction: column;
        background: var(--bg-card);
        border-radius: 14px;
        box-shadow: 0 1px 8px rgba(31, 41, 55, 0.06);
        transform: none;
    }

    body.radio-page .playlist-item:hover {
        transform: none;
        box-shadow: 0 1px 8px rgba(31, 41, 55, 0.06);
    }

    body.radio-page .playlist-item::before {
        width: 100%;
        height: 3px;
        flex-shrink: 0;
        background: #6366F1;
        box-shadow: none;
    }

    body.radio-page .playlist-item .song-main {
        display: flex;
        flex-direction: row !important;
        align-items: flex-start;
        gap: 10px;
        padding: 13px 13px 8px !important;
    }

    body.radio-page .playlist-item .song-index {
        position: static !important;
        width: 28px;
        height: 28px;
        border-radius: 9px;
        font-size: 0.7rem;
        box-shadow: none;
        flex-shrink: 0;
    }

    body.radio-page .playlist-item .song-index::before {
        display: none;
    }

    body.radio-page .playlist-item .song-content {
        min-width: 0;
        padding: 0 !important;
    }

    body.radio-page .playlist-item .song-name {
        font-size: 0.95rem;
        line-height: 1.35;
        gap: 5px;
    }

    body.radio-page .playlist-item .song-name::before {
        content: none;
    }

    body.radio-page .playlist-item .song-artist {
        padding: 0;
        margin-left: 0;
        background: transparent;
        border-radius: 0;
        color: var(--text-secondary);
        font-size: 0.78rem;
    }

    body.radio-page .playlist-item .song-footer {
        gap: 4px;
        margin-top: 6px;
        font-size: 0.72rem;
        line-height: 1.35;
    }

    body.radio-page .playlist-item .song-author,
    body.radio-page .playlist-item .song-details {
        padding: 0;
        background: transparent;
        border: 0;
        border-radius: 0;
        font-size: 0.72rem;
        font-weight: 500;
    }

    body.radio-page .playlist-item .song-author {
        color: var(--text-secondary);
    }

    body.radio-page .playlist-item .song-details {
        color: var(--text-light);
    }

    body.radio-page .playlist-item .song-details::before {
        content: '·';
        margin-right: 5px;
        color: var(--text-light);
    }

    body.radio-page .playlist-item .song-tag {
        padding: 0;
        background: transparent;
        border: 0;
        border-radius: 0;
    }

    body.radio-page .playlist-item .song-msg-bubble {
        margin: 7px 0 0;
        padding: 5px 8px;
        background: #F8F7FC;
        border: 0;
        border-left: 2px solid #C4B5FD;
        border-radius: 0 7px 7px 0;
        color: var(--text-light);
        font-size: 0.74rem;
        line-height: 1.4;
    }

    body.radio-page .playlist-item .song-msg-bubble::before {
        content: none;
    }

    body.radio-page .playlist-item .song-status-area {
        display: flex;
        flex-direction: row;
        align-items: center;
        justify-content: flex-end;
        gap: 4px;
        min-width: auto;
        padding: 0 13px 12px;
    }

    body.radio-page .playlist-item .song-status {
        padding: 4px 9px;
        border-radius: 8px;
        box-shadow: none;
        font-size: 0.68rem;
        letter-spacing: 0;
    }

    body.radio-page .playlist-item .song-status::before {
        display: none;
    }

    body.radio-page .hot-songs-list {
        gap: 8px;
    }

    body.radio-page .hot-song-item {
        gap: 10px;
        padding: 12px;
        border-radius: 14px;
        box-shadow: 0 1px 8px rgba(31, 41, 55, 0.06);
    }

    body.radio-page .hot-song-item:hover {
        transform: none;
        box-shadow: 0 1px 8px rgba(31, 41, 55, 0.06);
    }

    body.radio-page .hot-song-rank {
        width: 28px;
        height: 28px;
        border-radius: 50%;
        background: #F3F4F6;
        color: var(--text-secondary);
        font-size: 0.82rem;
    }

    body.radio-page .hot-song-rank.rank-1 {
        background: #FEF3C7;
        color: #B45309;
    }

    body.radio-page .hot-song-rank.rank-2 {
        background: #F1F5F9;
        color: #64748B;
    }

    body.radio-page .hot-song-rank.rank-3 {
        background: #FDEAD7;
        color: #C2410C;
    }

    body.radio-page .hot-song-name {
        margin-bottom: 4px;
        font-size: 0.92rem;
        line-height: 1.35;
    }

    body.radio-page .hot-song-artist {
        font-size: 0.76rem;
    }

    body.radio-page .hot-song-meta {
        gap: 0;
        font-size: 0.72rem;
        line-height: 1.35;
    }

    body.radio-page .hot-song-author,
    body.radio-page .hot-song-recipient {
        padding: 0;
        background: transparent;
        border-radius: 0;
    }

    body.radio-page .hot-song-recipient::before {
        content: '·';
        margin: 0 5px;
        color: var(--text-light);
    }

    body.radio-page .hot-song-message {
        display: block;
        max-width: 100%;
        margin-top: 4px;
        padding: 0;
        background: transparent;
        font-size: 0.72rem;
        font-style: normal;
        line-height: 1.35;
    }

    body.radio-page .hot-song-vote .vote-btn {
        min-width: 52px;
        min-height: 42px;
        flex-direction: row;
        gap: 4px;
        padding: 6px 8px;
        border: 1px solid rgba(255, 107, 157, 0.22);
        border-radius: 10px;
        background: transparent;
    }

    body.radio-page .hot-song-vote .vote-icon {
        font-size: 0.95rem;
    }

    body.radio-page .hot-song-vote .vote-count {
        font-size: 0.78rem;
    }
}

/* 点歌页移动端最终覆盖：放在文件末尾，确保不被历史兼容规则反向覆盖 */
@media (max-width: 768px) {
    body.radio-page .hot-song-item {
        grid-template-columns: 30px minmax(0, 1fr) auto;
        gap: 8px;
        min-height: 62px;
        padding: 9px 9px 9px 8px;
        border-radius: 13px;
        box-shadow: 0 3px 12px rgba(31, 41, 55, 0.035);
    }

    body.radio-page .hot-song-rank {
        width: 30px;
        height: 30px;
        border-radius: 10px;
        font-size: 0.8rem;
    }

    body.radio-page .hot-song-name {
        margin-bottom: 4px;
        font-size: 0.89rem;
        line-height: 1.3;
    }

    body.radio-page .hot-song-artist {
        display: block;
        overflow: hidden;
        margin-top: 2px;
        font-size: 0.74rem;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    body.radio-page .hot-song-meta {
        gap: 4px;
        font-size: 0.69rem;
    }

    body.radio-page .hot-song-author,
    body.radio-page .hot-song-recipient {
        max-width: 45%;
        padding: 2px 6px;
    }

    body.radio-page .hot-song-message {
        margin-top: 4px;
        font-size: 0.69rem;
    }

    body.radio-page .hot-song-vote .vote-btn {
        min-width: 48px;
        min-height: 36px;
        gap: 3px;
        padding: 5px 7px;
        border-radius: 9px;
    }

    body.radio-page .hot-song-vote .vote-icon {
        font-size: 0.86rem;
    }

    body.radio-page .hot-song-vote .vote-count {
        font-size: 0.72rem;
    }
}

@media (max-width: 360px) {
    body.radio-page .hot-song-item {
        grid-template-columns: 28px minmax(0, 1fr) auto;
        gap: 7px;
        padding-right: 7px;
    }

    body.radio-page .hot-song-rank {
        width: 28px;
        height: 28px;
    }

    body.radio-page .hot-song-vote .vote-btn {
        min-width: 44px;
        padding: 5px 6px;
    }
}

/* ===== 最终交互收口：与底部导航及安全区保持一致 ===== */
#sideCheckin {
    width: 130px;
    min-width: 130px;
}

@media (max-width: 768px) {
    body.home-page .main-content,
    body.profile-page .main-content,
    body.feedback-screen .main-content {
        padding-bottom: calc(88px + env(safe-area-inset-bottom, 0px));
    }

    .mobile-checkin-slot #sideCheckin {
        width: 100%;
        min-width: 0;
    }

    body.home-page .post-card .action-btn,
    body.post-detail-page .detail-actions button,
    body.post-detail-page .btn-comment-submit,
    body.radio-page .hot-song-vote .vote-btn {
        min-height: 44px !important;
    }

    #sideCheckin.mobile-checkin-card .btn-checkin,
    .mobile-checkin-slot .checkin-retry {
        min-height: 44px;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto !important;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ===== 首页桌面布局修复 =====
   桌面端使用宽版内容流；足够宽时保留两侧信息卡，签到卡挂在右栏首位。 */
@media (min-width: 769px) {
    body.home-page .main-content {
        width: min(calc(100% - 48px), 1120px);
        max-width: 1120px;
        box-sizing: border-box;
        padding-right: 24px;
        padding-left: 24px;
    }
}

@media (min-width: 769px) and (max-width: 1200px) {
    .side-cards-container {
        display: none !important;
    }
}

/* 普通桌面宽度也保留右侧信息栏，主内容预留出稳定空间，避免卡片压住帖子。 */
@media (min-width: 1201px) and (max-width: 1599px) {
    body.home-page .main-content {
        width: min(calc(100% - 300px), 1120px);
        max-width: 1120px;
        box-sizing: border-box;
    }

    .side-cards-container {
        display: flex !important;
        padding-left: 14px;
        padding-right: 14px;
    }

    .side-cards-group {
        gap: 16px;
    }

    .side-cards-group > .side-card {
        width: 116px;
        min-width: 116px;
    }

    #sideCheckin {
        width: 126px;
        min-width: 126px;
        padding-left: 9px;
        padding-right: 9px;
    }
}

@media (min-width: 1600px) {
    body.home-page .main-content {
        width: min(calc(100% - 48px), 1120px);
        max-width: 1120px;
        box-sizing: border-box;
    }

    .side-cards-container {
        padding-left: clamp(28px, 2.4vw, 52px);
        padding-right: clamp(28px, 2.4vw, 52px);
    }

    .side-cards-group {
        gap: 26px;
    }

    .side-cards-group > .side-card {
        width: 138px;
        min-width: 138px;
    }

    #sideCheckin {
        width: 148px;
        min-width: 148px;
        padding-left: 12px;
        padding-right: 12px;
    }
}

/* 帖子正文留出呼吸边距，长文本阅读不贴卡片边缘。 */
@media (min-width: 769px) {
    body.home-page .post-card .post-title,
    body.home-page .post-card .post-content {
        padding-inline: 8px;
    }
}

@media (max-width: 768px) {
    body.home-page .post-card .post-title,
    body.home-page .post-card .post-content {
        padding-inline: 4px;
    }
}

/* 首页桌面滚轮和视频媒体：视频居中显示，避免宽卡片右侧留下突兀空白。 */
@media (min-width: 769px) {
    body.home-page {
        overflow-x: hidden;
        overflow-y: auto;
        overscroll-behavior-y: auto;
    }

    body.home-page .post-card .post-video-wrap {
        width: min(100%, 780px);
        aspect-ratio: 16 / 9;
        box-sizing: border-box;
        margin: 16px auto 20px;
        border: 1px solid rgba(39, 83, 77, 0.22);
        border-radius: 20px;
        background: linear-gradient(145deg, #173d3a, #244f49);
        box-shadow: 0 14px 30px rgba(35, 75, 69, 0.14), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    }

    body.home-page .post-card .post-video {
        width: 100%;
        height: 100%;
        max-height: none;
        aspect-ratio: 16 / 9;
        object-fit: contain;
        background: #142c2a;
    }
}

@media (max-width: 768px) {
    body.home-page,
    body.home-page .main-content,
    body.home-page #postList,
    body.home-page .post-card {
        touch-action: pan-y;
    }

    body.home-page {
        overscroll-behavior-y: auto;
    }

    body.home-page .post-card .post-video-wrap {
        width: 100%;
        aspect-ratio: 16 / 9;
        margin: 14px 0 18px;
        border-radius: 16px;
    }

    body.home-page .post-card .post-video {
        width: 100%;
        height: 100%;
        max-height: none;
        object-fit: contain;
    }
}

/* ===== 首页社区流最终排版 =====
   首页保持校园墙的轻量卡片感，但互动区按朋友圈的信息层级收口。 */
body.home-page .post-card {
    border: 1px solid rgba(226, 232, 240, 0.72);
    box-shadow: 0 8px 24px rgba(30, 41, 59, 0.05);
}

body.home-page .post-card .post-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex-wrap: wrap;
    column-gap: 2px;
    row-gap: 0;
    margin-top: 14px;
    padding-top: 9px;
    border-top: 1px solid rgba(226, 232, 240, 0.58);
}

body.home-page .post-card .action-btn {
    min-width: 0;
    min-height: 40px;
    padding: 7px 8px;
    border: 0;
    border-radius: 11px;
    background: rgba(241, 243, 248, 0.72);
    color: var(--text-secondary, #64748b);
    font-size: 0.82rem;
    font-weight: 500;
    font-family: inherit;
    line-height: 1.2;
    cursor: pointer;
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    transition: background-color 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

body.home-page .post-card .action-btn:hover,
body.home-page .post-card .action-btn:focus-visible {
    background: rgba(255, 107, 157, 0.1);
    color: var(--primary-dark, #e5558a);
}

body.home-page .post-card .action-btn:active {
    transform: scale(0.95);
}

@keyframes heart-pop {
    0% { transform: scale(1); }
    40% { transform: scale(1.32); }
    70% { transform: scale(0.92); }
    100% { transform: scale(1); }
}

body.home-page .post-card .action-btn.liked {
    background: rgba(255, 107, 157, 0.12);
    color: var(--primary-dark, #e5558a);
}

body.home-page .post-card .action-btn.liked .action-icon {
    display: inline-block;
    animation: heart-pop 0.38s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

body.home-page .post-card .action-btn.favorited {
    background: rgba(245, 158, 11, 0.12);
    color: #d97706;
}

body.home-page .post-card .action-btn.liked:hover,
body.home-page .post-card .action-btn.liked:focus-visible {
    background: rgba(255, 107, 157, 0.18);
    color: var(--primary-dark, #e5558a);
}

body.home-page .post-card .action-btn.favorited:hover,
body.home-page .post-card .action-btn.favorited:focus-visible {
    background: rgba(245, 158, 11, 0.18);
    color: #b45309;
}

body.home-page .post-card .action-icon {
    flex: 0 0 auto;
    font-size: 1rem;
    transition: transform 0.18s ease;
}

body.home-page .post-card .post-comments-preview {
    margin-top: 10px;
    padding: 8px 10px 6px;
    border-radius: 9px;
    border: 1px solid rgba(220, 211, 227, 0.42);
    background: rgba(244, 241, 247, 0.62);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.42);
}

body.home-page .post-card .comment-preview-item {
    display: flex;
    align-items: flex-start;
    gap: 5px;
    min-width: 0;
    padding: 2px 0;
    line-height: 1.55;
}

body.home-page .post-card .comment-preview-author {
    flex: 0 0 auto;
    max-width: 42%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--secondary, #7c5fc3);
    font-weight: 600;
}

body.home-page .post-card .comment-preview-text {
    min-width: 0;
    overflow-wrap: anywhere;
    word-break: break-word;
    color: var(--text-secondary, #64748b);
}

body.home-page .post-card .comment-preview-more {
    margin-top: 5px;
    color: var(--primary-dark, #e5558a);
    font-weight: 600;
}

[data-theme="dark"] body.home-page .post-card .action-btn {
    color: var(--text-secondary);
}

[data-theme="dark"] body.home-page .post-card .action-btn:hover,
[data-theme="dark"] body.home-page .post-card .action-btn:focus-visible {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
}

[data-theme="dark"] body.home-page .post-card .action-btn.liked {
    background: transparent;
    color: var(--primary);
}

[data-theme="dark"] body.home-page .post-card .action-btn.favorited {
    background: transparent;
    color: #FBBF24;
}

[data-theme="dark"] body.home-page .post-card .comment-preview-author {
    color: var(--secondary);
}

[data-theme="dark"] body.home-page .post-card .comment-preview-more {
    color: var(--primary);
}

[data-theme="dark"] body.home-page .post-card .post-comments-preview {
    border-color: var(--border-light);
    background: rgba(22, 27, 36, 0.72);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

[data-theme="dark"] body.home-page .post-card .post-actions {
    border-top-color: var(--border-light);
}

/* 顶部通知与退出共用同一组浅色状态，退出按钮与通知文字保持舒适间距。 */
.navbar {
    --wall-nav-ink: #68717b;
    --wall-nav-hover: #806a7c;
    --wall-nav-surface: rgba(123, 108, 133, 0.08);
    --wall-nav-border: rgba(189, 180, 194, 0.58);
    --wall-nav-focus: rgba(141, 119, 146, 0.46);
    --wall-nav-divider: rgba(214, 208, 216, 0.78);
}

.navbar .nav-notification,
.navbar .nav-logout {
    color: var(--wall-nav-ink);
}

.navbar .nav-logout {
    margin-left: 28px;
}

.navbar .nav-notification::before,
.navbar .nav-logout::before {
    left: -14px;
    background: var(--wall-nav-divider);
}

.navbar .nav-control-icon {
    border-color: var(--wall-nav-border);
    background: rgba(250, 249, 251, 0.78);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.88) inset;
}

.navbar .nav-notification:hover,
.navbar .nav-logout:hover,
.navbar .nav-notification:focus-visible,
.navbar .nav-logout:focus-visible {
    color: var(--wall-nav-hover);
    transform: none;
}

.navbar .nav-notification:hover .nav-control-icon,
.navbar .nav-logout:hover .nav-control-icon,
.navbar .nav-notification:focus-visible .nav-control-icon,
.navbar .nav-logout:focus-visible .nav-control-icon {
    background: var(--wall-nav-surface);
    border-color: var(--wall-nav-border);
    box-shadow: 0 2px 8px rgba(123, 108, 133, 0.1);
}

.navbar .nav-notification:focus-visible,
.navbar .nav-logout:focus-visible {
    outline: 2px solid var(--wall-nav-focus);
    outline-offset: 3px;
}

[data-theme="dark"] .navbar {
    --wall-nav-ink: #94A3B8;
    --wall-nav-hover: #F1F5F9;
    --wall-nav-surface: rgba(255, 255, 255, 0.08);
    --wall-nav-border: rgba(255, 255, 255, 0.12);
    --wall-nav-focus: rgba(255, 117, 165, 0.45);
    --wall-nav-divider: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .navbar .nav-control-icon {
    background: rgba(27, 33, 45, 0.78);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08) inset;
}
@media (max-width: 768px) {
    body.home-page .post-card .post-actions {
        grid-template-columns: repeat(4, minmax(0, 1fr));
        gap: 5px;
    }

    body.home-page .post-card .action-btn {
        min-height: 42px;
        padding-inline: 4px;
        font-size: 0.76rem;
    }

    body.home-page .post-card .post-comments-preview {
        padding: 9px 10px;
    }
}

/* ===== 首页侧栏与签到卡最终布局 =====
   宽屏将签到放入左侧栏首位；中等桌面保留主内容备用位，手机继续使用主内容流。 */
.desktop-checkin-slot {
    display: none;
}

@media (min-width: 769px) {
    body.home-page .main-content {
        box-sizing: border-box;
    }
}

@media (min-width: 769px) and (max-width: 1599px) {
    .side-cards-container {
        display: none !important;
    }

    .desktop-checkin-slot {
        display: block;
        margin: 0 0 14px;
    }

    .desktop-checkin-slot #sideCheckin {
        width: 100%;
        min-width: 0;
        box-sizing: border-box;
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        padding: 12px 16px;
        border-radius: 16px;
    }

    .desktop-checkin-slot #sideCheckin .checkin-card-heading {
        flex: 1 1 auto;
        flex-direction: row;
        align-items: center;
        min-width: 0;
        margin: 0;
    }

    .desktop-checkin-slot #sideCheckin .checkin-card-copy {
        min-width: 0;
    }

    .desktop-checkin-slot #sideCheckin .checkin-card-subtitle {
        white-space: normal;
    }

    .desktop-checkin-slot #sideCheckin .side-card-body {
        width: auto;
        min-width: 180px;
        margin-left: 16px;
    }
}

@media (min-width: 1600px) {
    .side-cards-container {
        box-sizing: border-box;
        align-items: center;
        padding: calc(var(--navbar-height, 64px) + 28px) clamp(24px, 2.5vw, 48px) 28px;
    }

    .side-cards-group {
        gap: 20px;
    }

    .side-cards-left {
        align-items: stretch;
    }

    .side-cards-right {
        align-items: flex-end;
    }

    .side-cards-group > .side-card {
        box-sizing: border-box;
    }

    .side-cards-left > .side-card,
    .side-cards-right > .side-card {
        width: 148px;
        min-width: 148px;
    }

    #sideCheckin {
        width: 148px;
        min-width: 148px;
        padding: 14px 12px 12px;
    }

    #sideCheckin .checkin-card-heading {
        align-items: center;
        margin-bottom: 10px;
    }

    #sideCheckin .side-card-title {
        font-size: 0.9rem;
        text-align: center;
    }

    #sideCheckin .checkin-card-subtitle {
        line-height: 1.4;
        text-align: center;
        white-space: normal;
    }

    #sideCheckin .checkin-action-row,
    #sideCheckin .checkin-status-row {
        min-height: 44px;
        padding: 6px 5px;
    }

    #sideCheckin .btn-checkin {
        min-width: 44px;
        min-height: 30px;
        padding: 5px 7px !important;
    }

    #sideHitokoto {
        align-items: stretch;
    }

    #sideHitokoto .side-card-content {
        max-height: 3.2rem;
        overflow-wrap: anywhere;
        word-break: break-word;
    }

    #sideHotsearch {
        align-items: stretch;
        padding: 16px 12px 18px;
    }

    #sideHotsearch .hotsearch-list {
        max-height: 360px;
        gap: 7px;
        padding-right: 3px;
    }

    #sideHotsearch .hotsearch-item.history-item {
        gap: 7px;
        padding: 9px 8px;
        font-size: 0.76rem;
        line-height: 1.45;
        text-align: left;
    }

    #sideHotsearch .history-event {
        overflow-wrap: anywhere;
        word-break: break-word;
    }
}

/* 移动端底部导航不再显示 active 小圆点。 */
@media (max-width: 768px) {
    .bottom-tab-bar .tab-item.active::after {
        display: none !important;
        content: none !important;
    }
}
/* 中等桌面签到卡已放入主内容流，必须覆盖侧栏卡片的固定窄宽度。 */
@media (min-width: 769px) and (max-width: 1599px) {
    .desktop-checkin-slot #sideCheckin {
        width: 100% !important;
        min-width: 0 !important;
        box-sizing: border-box !important;
    }

    .desktop-checkin-slot #sideCheckin .side-card-body {
        width: auto !important;
        min-width: 0 !important;
        flex: 1 1 360px;
    }
}

/* 签到鼓励文案在窄侧栏或主内容卡中都允许自然换行，不能被固定宽度截断。 */
#sideCheckin .checkin-encouragement,
#sideCheckin .checkin-title-goal {
    min-width: 0;
    overflow-wrap: anywhere;
    word-break: break-word;
    white-space: normal;
}

/* ===== 现代夜间视觉与图片防爆闪规范 ===== */
[data-theme="dark"] .post-image,
[data-theme="dark"] .detail-image {
    filter: brightness(0.86);
    transition: filter 0.25s ease;
}

[data-theme="dark"] .post-image-wrapper:hover .post-image,
[data-theme="dark"] .post-image-wrapper:active .post-image,
[data-theme="dark"] .detail-image:hover {
    filter: brightness(1);
}

.post-card .post-images.image-count-1 .post-image-wrapper {
    max-width: 440px;
    max-height: 380px;
}

/* 侧边栏卡片夜间模式全量统一样式 */
[data-theme="dark"] .side-card {
    background: var(--bg-card) !important;
    border: 1px solid var(--border-light) !important;
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.25) !important;
}

[data-theme="dark"] #sideHitokoto .side-card-content,
[data-theme="dark"] .quick-card-hitokoto-text,
[data-theme="dark"] .hitokoto-author,
[data-theme="dark"] .hitokoto-from {
    color: #E2E8F0 !important;
}

/* 移动端 (≤768px) 核心卡片呼吸槽与排版收口 */
@media (max-width: 768px) {
    body.home-page .post-card {
        padding: 16px 14px 12px !important;
        margin: 0 10px 12px 10px !important;
        border-radius: 14px !important;
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04) !important;
    }

    body.home-page .post-card .post-content {
        font-size: 0.94rem !important;
        line-height: 1.65 !important;
        margin: 8px 0 12px 0 !important;
        letter-spacing: 0.01em !important;
    }

    body.home-page .post-card .post-images.image-count-1 .post-image-wrapper {
        max-width: 100% !important;
        max-height: 280px !important;
    }

    body.home-page .post-card .post-images {
        gap: 6px !important;
        margin-bottom: 12px !important;
    }

    body.home-page .post-card .action-btn {
        min-height: 44px !important;
        padding: 6px 4px !important;
        font-size: 0.78rem !important;
        border-radius: 10px !important;
    }

    /* 移动端详情页与评论流黄金排版 */
    body.post-detail-page .detail-card,
    body.post-detail-page .comment-section {
        margin-inline: 10px !important;
        border-radius: 14px !important;
        padding-inline: 14px !important;
    }

    body.post-detail-page .detail-content {
        font-size: 0.96rem !important;
        line-height: 1.7 !important;
        letter-spacing: 0.01em !important;
    }

    body.post-detail-page .comment-item {
        padding: 12px 0 !important;
    }

    body.post-detail-page .comment-reply-item {
        margin-left: 28px !important;
        padding: 8px 10px !important;
        border-radius: 8px !important;
    }

    body.post-detail-page .comment-input {
        font-size: 0.92rem !important;
        line-height: 1.5 !important;
    }
}