/* 本地Material Icons字体 - 避免Google Fonts加载失败 */
@font-face {
    font-family: 'Material Icons';
    font-style: normal;
    font-weight: 400;
    src: url('../fonts/MaterialIcons-Regular.woff2') format('woff2'),
         url('../fonts/MaterialIcons-Regular.woff') format('woff'),
         url('../fonts/MaterialIcons-Regular.ttf') format('truetype');
}


/* ΢������ - ������ʽ����չ�˵������ */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined');

:root {
    /* 布局专用变量 - 继承主题变量 */
    --primary-red: var(--danger-color, #FF3333);
    --primary-black: var(--text-primary, #111111);
    --bg-gray: var(--bg-secondary, #F4F4F5);
    --white: var(--bg-primary, #FFFFFF);
    --text-gray: var(--text-secondary, #666666);
    --border-width: 2px;
    --shadow-hard: 4px 4px 0px var(--primary-black);
    --shadow-hover: 2px 2px 0px var(--primary-black);
    --radius-sm: 4px;
    --radius-md: 8px;
    /* 主视觉渐变，用于注册按钮等强调元素 */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

body {
    font-family: 'IBM Plex Mono', monospace;
    background-color: var(--bg-secondary);
    margin: 0;
    padding: 0;
    color: var(--text-primary);
    line-height: 1.6;
}

.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.layout-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
    width: 100%;
}

/* ========== ���������� ========== */
.app-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    width: 100%;
    background: var(--bg-primary);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 0;
}

.header-content {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    width: 100%;
    padding: 0 1rem;
    gap: 0.5rem;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-width: 0;
    grid-column: 1;
}

/* Logo���� */
.logo-section {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    color: var(--text-primary);
    text-decoration: none;
    transition: transform 0.2s ease;
}

.logo-section:hover {
    transform: scale(1.02);
}

.logo-icon {
    font-size: 1.5rem;
    color: var(--primary-red);
}

/* LogoͼƬ��ʽ */
.logo-icon-img {
    width: 36px;
    height: 36px;
    object-fit: contain;
}

.logo-text {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0;
    white-space: nowrap;
    flex-shrink: 0;
    line-height: 1.2;
}
}

/* 主导航菜单 - 强制横排 */
.main-nav {
    display: flex !important;
    flex-direction: row !important;
    align-items: center;
    gap: 0.125rem;
    flex-wrap: nowrap;
    flex-shrink: 1;
    min-width: 0;
    overflow: hidden;
}

.device-filter-group {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 0.25rem;
    position: static;
    flex-shrink: 0;
}

@media (min-width: 900px) {
    .main-nav {
        display: flex !important;
        flex-direction: row !important;
    }
}

.nav-link {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 0.4rem;
    padding: 0.5rem 0.75rem;
    text-decoration: none;
    color: var(--primary-black);
    font-weight: 500;
    border: var(--border-width) solid transparent;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
    white-space: nowrap;
    flex-shrink: 0;
}

.nav-link span:not(.bi) {
    white-space: nowrap;
    display: inline-block !important;
}

/* hover 态排除 .active：选中项是实心底，再叠灰底/黑边/硬阴影/位移会打架 */
.nav-link:not(.active):hover {
    background-color: var(--bg-gray);
    border-color: var(--primary-black);
    box-shadow: var(--shadow-hover);
    transform: translateY(-1px);
    color: var(--primary-black);
}

.nav-link.active {
    background-color: var(--primary-color, #6366f1);
    color: var(--white);
    border-color: var(--primary-color, #6366f1);
    box-shadow: none;
}

.nav-link .bi {
    font-family: 'Material Symbols Outlined';
    font-weight: normal;
    font-style: normal;
    font-size: 1.125rem;
    line-height: 1;
    letter-spacing: normal;
    text-transform: none;
    display: inline-block;
    white-space: nowrap;
    word-wrap: normal;
    direction: ltr;
    -webkit-font-feature-settings: 'liga';
    -webkit-font-smoothing: antialiased;
    font-variation-settings:
        'FILL' 0,
        'wght' 400,
        'GRAD' 0,
        'opsz' 24;
}

/* 设备类型筛选按钮组 - 强制横排显示 */
.device-filter-group {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 0.25rem;
    padding: 0 0.5rem;
    border-left: 2px solid var(--border-color, #ddd);
    border-right: 2px solid var(--border-color, #ddd);
    margin: 0 0.25rem;
    position: relative !important;
    background: transparent !important;
    box-shadow: none !important;
}

.device-filter-btn {
    display: inline-flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 0.35rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    border: var(--border-width) solid transparent;
    background: transparent;
    cursor: pointer;
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

.device-filter-btn:not(.active):hover {
    background-color: var(--bg-gray);
    border-color: var(--primary-black);
    box-shadow: var(--shadow-hover);
}

.device-filter-btn.active {
    background-color: var(--primary-color, #6366f1);
    color: var(--white);
    border-color: var(--primary-color, #6366f1);
    box-shadow: none;
}

.device-filter-btn .bi {
    font-family: 'Material Symbols Outlined';
    font-weight: normal;
    font-style: normal;
    font-size: 1.125rem;
    line-height: 1;
    letter-spacing: normal;
    text-transform: none;
    display: inline-block;
    white-space: nowrap;
    word-wrap: normal;
    direction: ltr;
    -webkit-font-feature-settings: 'liga';
    -webkit-font-smoothing: antialiased;
    font-variation-settings:
        'FILL' 0,
        'wght' 400,
        'GRAD' 0,
        'opsz' 24;
}

.device-filter-btn span:not(.bi) {
    font-size: 0.875rem;
}

/* 小屏幕隐藏设备筛选文字，只显示图标 */
@media (max-width: 1200px) {
    .device-filter-btn span:not(.bi) {
        display: inline-block !important;
    }
    
    .device-filter-btn {
        padding: 0.5rem 0.6rem;
    }
    
    .device-filter-group {
        gap: 0.15rem;
        padding: 0 0.25rem;
    }
}

/* 更小屏幕时调整设备筛选按钮大小 */
@media (max-width: 1000px) {
    .device-filter-group {
        display: flex !important;
    }
}

/* �Ҳ๤���� */
.header-right {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
    min-width: 0;
    grid-column: 3;
}
}

/* 搜索框容器 - 紧凑样式 */
.search-container {
    position: relative;
    min-width: 10rem;
    max-width: 100% !important;
    width: 100% !important;
    grid-column: 2;
}

.search-input {
    width: 100%;
    height: 2.5rem;
    padding: 0 1rem;
    border: 1.5px solid var(--border-color, #e5e7eb);
    border-radius: 0.375rem;
    box-sizing: border-box;
    background: var(--white);
    font-size: 0.875rem;
    font-family: 'IBM Plex Mono', monospace;
    color: var(--primary-black);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-red);
}

.search-input::placeholder {
    color: var(--text-secondary);
}

/* ��̬��ť - ��ɫ���� */
.btn-animated {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    height: 2.5rem;
    min-width: 5.25rem;
    padding: 0 1rem;
    background: var(--primary-red);
    color: var(--white);
    border: none;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-animated:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 0, 0, 0.3);
}

/* ��̬��ť - ��ɫ���� */
.btn-static {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    height: 2.5rem;
    min-width: 5.25rem;
    padding: 0 1rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: none;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-static:hover {
    background: var(--border-color);
}

/* �������水ť - ����Ļ��ʾ */
.btn-desktop {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    height: 2.5rem;
    padding: 0 1rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: none;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
}

@media (min-width: 1024px) {
    .btn-desktop {
        display: flex;
    }
}

.btn-desktop:hover {
    background: var(--border-color);
}

/* ͼ�갴ť */
.icon-btn,
.icon-btn-plain {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.3s;
}

/* �������� - ���Σ�2px�߿� */
.icon-btn {
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary);
}

.icon-btn:hover {
    background: var(--bg-secondary);
}

/* ���ð�ť */
.icon-btn-plain {
    border: none;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.icon-btn-plain:hover {
    background: var(--bg-secondary);
}

.bi {
    font-family: 'Material Symbols Outlined';
    font-weight: normal;
    font-style: normal;
    font-size: 1.125rem;
    line-height: 1;
    letter-spacing: normal;
    text-transform: none;
    display: inline-block;
    white-space: nowrap;
    word-wrap: normal;
    direction: ltr;
    -webkit-font-feature-settings: 'liga';
    -webkit-font-smoothing: antialiased;
    font-variation-settings:
        'FILL' 0,
        'wght' 400,
        'GRAD' 0,
        'opsz' 24;
}

/* ========== 主内容区域 ========== */
.app-main {
    flex: 1;
    padding: 1rem 0;
}

/* ========== ҳ�� ========== */
.app-footer {
    background: var(--white);
    border-top: var(--border-width) solid var(--primary-black);
    padding: 3rem 2rem 1rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto 2rem;
}

.footer-section h3,
.footer-section h4 {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-black);
}

.footer-section h3 {
    font-size: 1.25rem;
}

.footer-section h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.footer-logo .bi {
    font-size: 1.5rem;
    color: var(--primary-red);
}

/* Footer LogoͼƬ��ʽ */
.footer-logo-img {
    width: 28px;
    height: 28px;
    object-fit: contain;
}

.footer-section p {
    color: var(--text-gray);
    font-size: 0.875rem;
    line-height: 1.6;
}

.footer-section a {
    display: block;
    color: var(--text-gray);
    text-decoration: none;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin: 0;
}

/* ========== 响应式布局 ========== */
@media (max-width: 768px) {
    .app-header {
        padding: 0.75rem 0;
    }
    
    .header-content {
        padding: 0 1rem;
        gap: 0.5rem;
    }

    .search-container {
        min-width: 10rem;
        max-width: 100% !important;
        flex: 1 1 0% !important;
        width: auto !important;
        flex-grow: 1 !important;
    }

    .btn-animated span:last-child,
    .btn-static span:last-child {
        display: none;
    }

    .app-main {
        padding: 0.5rem 0;
    }

    /* 手机端：顶部主导航改为竖向堆叠，设备切换标签横向滚动，杜绝整页横向溢出 */
    .app-header .header-content {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 0.5rem;
        padding: 0 0.75rem;
    }

    .app-header .header-left {
        flex: 1 1 100%;
        min-width: 0;
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .app-header .main-nav {
        flex: 1 1 100%;
        order: 2;
        overflow-x: auto;
        overflow-y: hidden;
        flex-wrap: nowrap;
        flex-shrink: 1;
        min-width: 0;
        -ms-overflow-style: none;
        scrollbar-width: none;
        padding-bottom: 2px;
    }

    .app-header .main-nav::-webkit-scrollbar {
        display: none;
    }

    .app-header .search-container {
        flex: 1 1 auto;
        order: 3;
        min-width: 0;
        max-width: 100% !important;
    }

    .app-header .header-right {
        flex: 0 0 auto;
        order: 3;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}
.dynamic-filter-inner {
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 8px;
}

/* ========== 用户菜单与登录按钮 ========== */
.auth-buttons {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-login {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 2.5rem;
    padding: 0 1rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--primary-black);
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-login:hover {
    background: var(--primary-black);
    color: var(--white);
}

.btn-register {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 2.5rem;
    padding: 0 1rem;
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-register:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-download {
    height: 2.2rem;
    padding: 0 0.5rem;
    font-size: 0.8rem;
    gap: 0.35rem;
    background: transparent;
    border: none;
    box-shadow: none;
}

.btn-download .bi {
    font-size: 1.35rem;
    line-height: 1;
}

.btn-download .bi-android2 {
    color: #3ddc84;
}

.btn-download .bi-windows {
    color: #00a4ef;
}

.btn-download:hover {
    background: transparent;
    transform: translateY(-1px);
    filter: brightness(1.1);
}

/* 用户菜单 */
.user-menu {
    position: relative;
}

.user-menu-button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    height: 2.5rem;
    padding: 0 0.75rem;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.2s;
}

.user-menu-button:hover {
    border-color: var(--primary-black);
    background: var(--bg-secondary);
}

.user-avatar-img {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
}

.user-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.dropdown-arrow {
    font-size: 1rem !important;
    color: var(--text-secondary);
}

/* 用户下拉菜单 */
.user-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 240px;
    width: 240px;
    background: var(--bg-primary);
    border: 2px solid var(--primary-black);
    border-radius: 0.5rem;
    box-shadow: var(--shadow-hard);
    z-index: 1000;
    overflow: hidden;
}

/* 用户下拉菜单 - 用户信息头部 */
.user-dropdown .user-info-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

/* 下拉菜单中的用户头像 - 固定大小，防止过大 */
.user-dropdown .dropdown-avatar {
    width: 48px !important;
    height: 48px !important;
    border-radius: 50% !important;
    object-fit: cover !important;
    flex-shrink: 0 !important;
    border: 2px solid var(--primary-color);
}

/* 下拉菜单中的默认头像图标 */
.user-dropdown .dropdown-avatar-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px !important;
    flex-shrink: 0;
}

/* 下拉菜单中的用户信息容器 */
.user-dropdown .dropdown-user-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

/* 下拉菜单中的用户昵称 */
.user-dropdown .dropdown-nickname {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 下拉菜单中的用户邮箱 */
.user-dropdown .dropdown-email {
    font-size: 0.75rem;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 下拉菜单项 - 强制flex水平布局 */
.user-dropdown .dropdown-item {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    gap: 12px;
    padding: 10px 16px;
    color: var(--text-primary);
    text-decoration: none;
    transition: background 0.2s;
    cursor: pointer;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
    font-size: 0.9rem;
}

.user-dropdown .dropdown-item:hover {
    background: var(--bg-secondary);
}

/* 下拉菜单项图标 - 固定大小，不伸缩 */
.user-dropdown .dropdown-item .bi {
    font-size: 20px !important;
    flex-shrink: 0 !important;
    color: var(--text-secondary);
}

/* 下拉菜单项文字 */
.user-dropdown .dropdown-item span:not(.bi) {
    flex: 1;
    text-align: left;
}

/* 管理后台菜单项特殊样式 */
.user-dropdown .dropdown-item.admin-item {
    color: var(--primary-color);
}

.user-dropdown .dropdown-item.admin-item:hover {
    background: rgba(99, 102, 241, 0.1);
}

.dropdown-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.dropdown-header .user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.user-avatar-dropdown-img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.dropdown-header .user-info {
    flex: 1;
    min-width: 0;
}

.user-nickname {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-email {
    font-size: 0.75rem;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.dropdown-divider {
    height: 1px;
    background: var(--border-color);
    margin: 0.5rem 0;
}

.logout-item {
    color: var(--danger-color);
}

.logout-item:hover {
    background: rgba(255, 51, 51, 0.1);
}

/* ========== 动态筛选按钮滚动容器 ========== */
.dynamic-filter-scroll {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 0.5rem;
    overflow-x: auto;
    flex: 1;
    min-width: 0;
    max-width: 100%;
    padding: 0.5rem 0;
    scrollbar-width: thin;
}

.dynamic-filter-scroll::-webkit-scrollbar {
    height: 4px;
}

.dynamic-filter-scroll::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

.filter-scroll-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    border-radius: 50%;
    cursor: pointer;
    flex-shrink: 0;
    transition: all 0.2s;
}

.filter-scroll-btn:hover {
    background: var(--bg-secondary);
    border-color: var(--primary-black);
}

.filter-divider {
    width: 1px;
    height: 24px;
    background: var(--border-color);
    flex-shrink: 0;
    margin: 0 0.25rem;
}




/* ============================================
   全局强制：设备类型筛选按钮文字始终显示
   ============================================ */
.device-filter-btn span:not(.bi) {
    display: inline-block !important;
    white-space: nowrap !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.device-filter-btn {
    display: inline-flex !important;
    flex-direction: row !important;
    align-items: center !important;
    padding: 0.5rem 0.75rem !important;
    min-width: auto !important;
    width: auto !important;
}

.device-filter-group {
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    visibility: visible !important;
    opacity: 1 !important;
}

/* ============================================
   筛选按钮栏样式
   ============================================ */
.filter-bar-container {
    background: var(--bg-primary, #fff);
    border-bottom: 1px solid var(--border-color, #e5e7eb);
    padding: 0.5rem 0;
    position: relative;
}

.filter-bar-container .header-content {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.dynamic-filter-scroll {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    overflow-x: auto;
    overflow-y: hidden;
    flex: 1;
    min-width: 0;
    max-width: 100%;
    padding: 0.25rem 0;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.dynamic-filter-scroll::-webkit-scrollbar {
    display: none;
}

.filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.85rem;
    background: var(--bg-secondary, #f3f4f6);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 9999px;
    color: var(--text-primary, #111827);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    flex-shrink: 0;
    position: relative;
}

.filter-btn:hover {
    background: var(--primary-color, #6366f1);
    color: white;
    border-color: var(--primary-color, #6366f1);
}

.filter-btn.active {
    background: var(--primary-color, #6366f1);
    color: white;
    border-color: var(--primary-color, #6366f1);
}

.filter-btn .bi {
    font-size: 1rem;
}

.hot-badge {
    display: inline-block;
    padding: 0.1rem 0.35rem;
    background: #ef4444;
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    border-radius: 0.25rem;
    margin-left: 0.25rem;
}

.filter-scroll-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    background: var(--bg-primary, #fff);
    border: 1px solid var(--border-color, #e5e7eb);
    border-radius: 50%;
    cursor: pointer;
    color: var(--text-secondary, #6b7280);
    transition: all 0.2s ease;
    flex-shrink: 0;
    z-index: 10;
}

.filter-scroll-btn:hover {
    background: var(--bg-secondary, #f3f4f6);
    color: var(--text-primary, #111827);
}

.filter-scroll-btn.left {
    position: absolute;
    left: 0;
    box-shadow: 2px 0 8px rgba(0,0,0,0.1);
}

.filter-scroll-btn.right {
    position: absolute;
    right: 0;
    box-shadow: -2px 0 8px rgba(0,0,0,0.1);
}

/* 强制Material Symbols Outlined图标正确渲染 */
.bi {
    font-family: 'Material Symbols Outlined' !important;
    font-weight: normal !important;
    font-style: normal !important;
    font-size: 24px !important;
    line-height: 1 !important;
    letter-spacing: normal !important;
    text-transform: none !important;
    display: inline-block !important;
    white-space: nowrap !important;
    word-wrap: normal !important;
    direction: ltr !important;
    -webkit-font-feature-settings: 'liga' !important;
    -moz-font-feature-settings: 'liga' !important;
    font-feature-settings: 'liga' !important;
    -webkit-font-smoothing: antialiased !important;
    font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24 !important;
}