:root {
    --primary: #0a0e17;
    --secondary: #141a2d;
    --accent: #ff6b35;
    --accent-secondary: #4a9eff;
    --text-primary: #f0f0f0;
    --text-secondary: #a0aec0;
    --border-color: #2a3245;
    --success: #3dd68c;
    --warning: #ffb74d;
    --danger: #ff6b6b;
    --border-radius: 12px;
    --shadow: 0 6px 25px rgba(0, 0, 0, 0.5);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

body {
    background-color: var(--primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    padding-bottom: 80px;
}

.container {
    max-width: 100%;
    margin: 0 auto;
    padding: 15px;
    padding-top: 0;
}

/* 顶部导航栏 */
.top-nav {
    background-color: rgba(20, 26, 45, 0.95);
    padding: 15px;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(10px);
    height: 60px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
}

.logo-icon {
    color: var(--accent);
    font-size: 1.8rem;
}

.logo-text {
    color: var(--text-primary);
}

/* 中间搜索区域 */
.middle-search {
    margin: 15px 0;
    display: none;
}

.middle-search.active {
    display: block;
}

.search-bar {
    position: relative;
    width: 100%;
}

.search-bar input {
    width: 100%;
    padding: 12px 15px 12px 45px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    background-color: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: var(--transition);
}

.search-bar input:focus {
    outline: none;
    border-color: var(--accent);
    background-color: rgba(255, 255, 255, 0.12);
}

.search-bar i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.user-actions {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
}

.app-download-btn {
    color: var(--accent);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 5px;
}

.app-download-btn:hover {
    color: var(--text-primary);
    transform: scale(1.1);
}

.app-download-btn span {
    font-size: 0.8rem;
    display: none;
}

/* 轮播图样式 */
.carousel {
    width: 100%;
    height: 160px;
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-bottom: 15px;
    position: relative;
    box-shadow: var(--shadow);
}

.carousel-slides {
    display: flex;
    width: 400%;
    height: 100%;
    transition: transform 0.5s ease;
}

.carousel-slide {
    width: 25%;
    height: 100%;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: flex-end;
    padding: 20px;
    position: relative;
}

.carousel-slide::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
}

.slide-content {
    position: relative;
    z-index: 2;
    color: white;
}

.slide-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.slide-subtitle {
    font-size: 0.9rem;
    opacity: 0.9;
}

.carousel-dots {
    position: absolute;
    bottom: 15px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    gap: 8px;
    z-index: 3;
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: var(--transition);
}

.carousel-dot.active {
    background-color: var(--accent);
    width: 20px;
    border-radius: 4px;
}

/* 滚动公告 */
.announcement-bar {
    background-color: rgba(255, 107, 53, 0.1);
    border-radius: var(--border-radius);
    padding: 12px 15px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    border-left: 4px solid var(--accent);
    overflow: hidden;
}

.announcement-icon {
    color: var(--accent);
    font-size: 1.2rem;
    margin-right: 12px;
    flex-shrink: 0;
}

.announcement-content {
    flex: 1;
    overflow: hidden;
    white-space: nowrap;
}

.announcement-scroll {
    display: inline-block;
    animation: scrollAnnouncement 25s linear infinite;
}

@keyframes scrollAnnouncement {
    0% { transform: translateX(100%); }
    100% { transform: translateX(-100%); }
}

/* 功能卡片区域 */
.function-area {
    background-color: var(--secondary);
    border-radius: var(--border-radius);
    padding: 12px 10px;
    margin-bottom: 15px;
    box-shadow: var(--shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: nowrap;
    gap: 5px;
    overflow: hidden;
}

.function-btn {
    padding: 8px 10px;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
    font-size: 0.8rem;
    text-align: center;
    white-space: nowrap;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
}

.function-btn.login {
    background-color: rgba(61, 214, 140, 0.2);
    color: var(--success);
    border: 1px solid var(--success);
}

.function-btn.register {
    background-color: rgba(74, 158, 255, 0.2);
    color: var(--accent-secondary);
    border: 1px solid var(--accent-secondary);
}

.function-text {
    color: var(--text-secondary);
    font-size: 0.75rem;
    white-space: nowrap;
    flex-shrink: 0;
    padding: 0 5px;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
}

.function-action {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.function-action:hover {
    background-color: rgba(255, 107, 53, 0.2);
    border-color: var(--accent);
}

.function-action.vip {
    background-color: rgba(255, 215, 0, 0.1);
    color: #ffd700;
    border-color: rgba(255, 215, 0, 0.3);
}

.function-action.vip:hover {
    background-color: rgba(255, 215, 0, 0.2);
}

/* 页面内容区域 */
.page-content {
    display: none;
    animation: fadeIn 0.3s ease;
    margin-top: 0;
    padding-top: 0;
}

.page-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 帖子分类选项卡 */
.post-tabs {
    display: flex;
    background-color: var(--secondary);
    border-radius: var(--border-radius);
    padding: 5px;
    margin-bottom: 15px;
    overflow-x: auto;
    scrollbar-width: none;
}

.post-tabs::-webkit-scrollbar {
    display: none;
}

.tab-item {
    flex: 1;
    text-align: center;
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    white-space: nowrap;
    font-size: 0.9rem;
}

.tab-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.tab-item.active {
    background-color: var(--accent);
    color: white;
}

/* 帖子列表样式 */
.post-list {
    margin-top: 10px;
}

.post-item {
    background-color: var(--secondary);
    border-radius: var(--border-radius);
    padding: 10px;
    margin-bottom: 8px;
    border-left: 3px solid var(--accent);
    transition: var(--transition);
    cursor: pointer;
}

.post-item:hover {
    transform: translateX(3px);
    background-color: rgba(255, 107, 53, 0.05);
}

.post-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 4px;
}

.post-title {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
    line-height: 1.2;
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.post-time {
    color: var(--text-secondary);
    font-size: 0.7rem;
    flex-shrink: 0;
    margin-left: 8px;
}

.post-author {
    color: var(--accent);
    font-weight: 500;
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 4px;
}

.post-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 4px;
}

.tag {
    background-color: rgba(255, 107, 53, 0.15);
    color: var(--accent);
    padding: 1px 5px;
    border-radius: 8px;
    font-size: 0.65rem;
    font-weight: 500;
}

/* 分页样式 */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    margin-top: 20px;
    padding: 15px 0;
}

.pagination-btn {
    background-color: var(--secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 6px 12px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.85rem;
    min-width: 80px;
    text-align: center;
}

.pagination-btn:hover:not(:disabled) {
    background-color: rgba(255, 107, 53, 0.2);
    border-color: var(--accent);
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.pagination-pages {
    display: flex;
    gap: 5px;
}

.page-number {
    background-color: var(--secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.85rem;
}

.page-number.active {
    background-color: var(--accent);
    color: white;
    border-color: var(--accent);
}

.page-number:hover:not(.active) {
    background-color: rgba(255, 255, 255, 0.05);
}

/* 活动页面样式优化 - 完全固定侧边栏 */
.activity-page-container {
    display: flex;
    flex-direction: column;
    gap: 0;
    width: 100%;
    margin-top: 0;
    padding-top: 0;
}

.activity-sidebar {
    position: sticky;
    top: 60px; /* 固定在顶部导航栏下方 */
    width: 100%;
    height: auto;
    overflow-x: auto;
    overflow-y: hidden;
    z-index: 900;
    background-color: var(--secondary);
    padding: 5px 0;
    margin: 0 0 10px 0;
    border-radius: 0;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
    flex-shrink: 0;
}

.activity-categories {
    display: flex;
    flex-direction: row;
    padding: 0;
    background-color: transparent;
    box-shadow: none;
    width: max-content;
    min-width: 100%;
    overflow-x: auto;
}

.category-item {
    padding: 10px 12px;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-bottom: none;
    border-right: 1px solid var(--border-color);
    min-width: 80px;
    white-space: nowrap;
    display: flex;
    transition: var(--transition);
    cursor: pointer;
    background-color: var(--secondary);
}

.category-item:last-child {
    border-right: none;
}

.category-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.category-item.active {
    background-color: rgba(255, 107, 53, 0.2);
    border-bottom: 3px solid var(--accent);
    border-left: none;
}

.category-icon {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1rem;
    flex-shrink: 0;
    margin-bottom: 5px;
    background: linear-gradient(135deg, #3742fa, #5352ed);
}

.category-icon.proxy {
    background: linear-gradient(135deg, #2ed573, #7bed9f);
}

.category-icon.new {
    background: linear-gradient(135deg, #ff6b35, #ff8c5a);
}

.category-icon.hot {
    background: linear-gradient(135deg, #ff4757, #ff6b81);
}

.category-icon.wallet {
    background: linear-gradient(135deg, #8e44ad, #9b59b6);
}

.category-icon.electronic {
    background: linear-gradient(135deg, #3498db, #2980b9);
}

.category-icon.fishing {
    background: linear-gradient(135deg, #1abc9c, #16a085);
}

.category-icon.record {
    background: linear-gradient(135deg, #9c88ff, #8c7ae6);
}

.category-icon.refresh {
    background: linear-gradient(135deg, #e84118, #c23616);
}

.category-icon.code {
    background: linear-gradient(135deg, #00a8ff, #0097e6);
}

.category-info {
    text-align: center;
}

.category-name {
    font-weight: 500;
    font-size: 0.8rem;
    margin-bottom: 0;
    text-align: center;
    color: var(--text-primary);
}

/* 活动内容区域 - 紧贴侧边栏下方 */
.activity-content {
    width: 100%;
    margin-top: 0;
    padding-top: 0;
}

/* 侧边栏水平滚动条样式 */
.activity-categories::-webkit-scrollbar {
    height: 4px;
}

.activity-categories::-webkit-scrollbar-track {
    background: var(--border-color);
    border-radius: 2px;
}

.activity-categories::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 2px;
}

/* 活动列表网格布局优化 */
.activity-list {
    display: grid;
    gap: 12px;
    grid-template-columns: 1fr;
    margin-top: 0;
    padding-top: 0;
}

/* 活动卡片优化 */
.activity-card {
    background-color: var(--secondary);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.activity-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
}

.activity-card-header {
    height: 120px;
    position: relative;
    overflow: hidden;
    background-color: #1a1f26;
    display: flex;
    align-items: center;
    justify-content: center;
}

.activity-card-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.3), rgba(74, 158, 255, 0.3));
}

.activity-card-title {
    position: relative;
    z-index: 2;
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    text-align: center;
    padding: 0 10px;
}

.activity-card-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: var(--accent);
    color: white;
    padding: 4px 8px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 3;
}

.activity-card-content {
    padding: 15px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.activity-card-platform {
    color: var(--accent-secondary);
    font-weight: 500;
    font-size: 0.85rem;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.activity-card-time {
    color: var(--text-secondary);
    font-size: 0.8rem;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.activity-card-reward {
    background-color: rgba(255, 215, 0, 0.1);
    color: #ffd700;
    padding: 8px 12px;
    border-radius: 8px;
    font-weight: 600;
    margin-top: auto;
    font-size: 0.9rem;
    text-align: center;
}

/* 平板端适配 */
@media (min-width: 768px) {
    .activity-page-container {
        flex-direction: row;
        gap: 15px;
        margin-top: 15px;
    }
    
    .activity-sidebar {
        position: sticky;
        top: 80px;
        width: 160px;
        height: calc(100vh - 200px);
        overflow-y: auto;
        overflow-x: hidden;
        background-color: var(--secondary);
        padding: 0;
        margin: 0;
        border-radius: var(--border-radius);
        box-shadow: var(--shadow);
    }
    
    .activity-categories {
        flex-direction: column;
        width: 100%;
        min-width: auto;
        overflow-x: hidden;
        overflow-y: auto;
    }
    
    .category-item {
        padding: 14px 15px;
        flex-direction: row;
        align-items: center;
        justify-content: flex-start;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        min-width: auto;
        width: 100%;
        text-align: left;
    }
    
    .category-item:last-child {
        border-bottom: none;
    }
    
    .category-item.active {
        border-left: 4px solid var(--accent);
        border-bottom: 1px solid var(--border-color);
    }
    
    .category-icon {
        width: 32px;
        height: 32px;
        font-size: 1.1rem;
        margin-bottom: 0;
        margin-right: 12px;
    }
    
    .category-name {
        font-size: 0.9rem;
        text-align: left;
    }
    
    .activity-content {
        flex: 1;
        margin-top: 0;
        padding-top: 0;
    }
    
    .activity-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 桌面端适配 */
@media (min-width: 1200px) {
    .activity-list {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* 直播间页面样式 */
.live-container {
    margin-top: 15px;
}

.live-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.live-card {
    background-color: var(--secondary);
    border-radius: var(--border-radius);
    padding: 15px;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    align-items: center;
}

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

.live-card-icon {
    font-size: 2.2rem;
    color: var(--accent);
    margin-bottom: 10px;
}

.live-card-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.live-card-status {
    color: var(--danger);
    font-weight: 500;
    font-size: 0.85rem;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.live-card-status.live {
    color: var(--success);
}

.live-card-users {
    color: var(--accent-secondary);
    font-weight: 500;
    font-size: 0.9rem;
}

/* 我的页面样式 */
.profile-section {
    margin-top: 15px;
}

.profile-header {
    background: linear-gradient(135deg, var(--secondary), #2a3245);
    border-radius: var(--border-radius);
    padding: 25px;
    text-align: center;
    margin-bottom: 20px;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.profile-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
}

.profile-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(45deg, var(--accent), var(--accent-secondary));
    margin: 0 auto 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: bold;
    border: 4px solid rgba(255, 255, 255, 0.1);
}

.profile-name {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.profile-level {
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.profile-stats {
    display: flex;
    justify-content: space-around;
    margin-top: 20px;
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.profile-menu {
    background-color: var(--secondary);
    border-radius: var(--border-radius);
    overflow: hidden;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.menu-item {
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
    cursor: pointer;
}

.menu-item:last-child {
    border-bottom: none;
}

.menu-item:hover {
    background-color: rgba(255, 107, 53, 0.1);
}

.menu-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.menu-icon {
    color: var(--accent);
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}

.menu-text {
    font-weight: 500;
}

.menu-right {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* 底部导航栏 */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: rgba(20, 26, 45, 0.95);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 12px 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    height: 60px;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.8rem;
    padding: 5px 10px;
    border-radius: 8px;
    position: relative;
    min-width: 60px;
}

.nav-item i {
    font-size: 1.2rem;
    margin-bottom: 4px;
}

.nav-item.active {
    color: var(--accent);
    background-color: rgba(255, 107, 53, 0.1);
}

.nav-item:hover {
    color: var(--text-primary);
}

.nav-badge {
    position: absolute;
    top: 0;
    right: 5px;
    background-color: var(--danger);
    color: white;
    border-radius: 50%;
    width: 16px;
    height: 16px;
    font-size: 0.7rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 中间logo按钮 */
.logo-center-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--accent);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.8rem;
    padding: 5px 10px;
    border-radius: 8px;
    position: relative;
    min-width: 60px;
}

.logo-center-item i {
    font-size: 1.6rem;
    margin-bottom: 4px;
}

.logo-center-item.active {
    color: var(--accent);
    background-color: rgba(255, 107, 53, 0.1);
}

.logo-center-item:hover {
    color: var(--text-primary);
}

/* 响应式设计 */
@media (min-width: 768px) {
    .container {
        max-width: 750px;
        padding-bottom: 70px;
    }
    
    .carousel {
        height: 200px;
    }
    
    .pagination-btn {
        padding: 8px 16px;
        font-size: 0.9rem;
        min-width: 100px;
    }
    
    .page-number {
        width: 36px;
        height: 36px;
        font-size: 0.9rem;
    }
    
    .app-download-btn span {
        display: inline;
    }
    
    .function-area {
        padding: 12px 15px;
        gap: 8px;
    }
    
    .function-btn {
        padding: 10px 12px;
        font-size: 0.85rem;
    }
    
    .function-text {
        font-size: 0.85rem;
    }
    
    .live-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 992px) {
    .container {
        max-width: 970px;
    }
    
    .live-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (min-width: 1200px) {
    .container {
        max-width: 1170px;
    }
}