/* CSS 变量定义 */
:root {
    /* 浅色主题变量 */
    --rank-shadow: 0 0.2vw 0.6vw rgba(0, 0, 0, 0.08);
    --rank-border: rgba(0, 0, 0, 0.1);
    --rank-item-bg: #fff;
    --rank-item-shadow: 0 0.1vw 0.2vw rgba(0,0,0,0.1);
    --rank-item-hover-bg: rgba(0, 0, 0, 0.02);
    --rank-item-hover-shadow: 0 0.2vw 0.4vw rgba(0,0,0,0.15);
    --rank-number-color: var(--primary-color, #00a1d6);
    --rank-image-border: rgba(0, 0, 0, 0.1);
    --rank-info-title-color: var(--text-color, #18191c);
    --rank-count-color: var(--primary-color, #00a1d6);
    --download-btn-bg: #ff3b30;
    --download-btn-color: #fff;
    --download-btn-hover-bg: #ff1a1a;
    --rank-tab-bg: #f0f0f0;
    --rank-tab-color: #333;
    --rank-tab-active-bg: #007bff;
    --rank-tab-active-color: white;
}

/* 排行榜容器样式 */
.rankings-container {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    padding: 1vw 2vw;
    overflow: hidden;
    box-sizing: border-box;
}

/* 排行榜区块样式 */
.rank-section {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.1vw;
    margin-top: 1.6vw;
    width: 100%;
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
    box-sizing: border-box;
}

/* 排行榜列表样式 */
.rank-list {
    width: 100%;
    border-radius: 0.6vw;
    padding: 1vw;
    box-shadow: var(--rank-shadow);
    border: 0.05vw solid var(--rank-border);
    transition: all 0.3s ease;
    box-sizing: border-box;
    min-width: 0;
}

.rank-list.hot {
    background: var(--rank-hot-bg, #fff7f0);
    border-color: var(--rank-border, rgba(255, 153, 0, 0.1));
}

.rank-list.pc {
    background: var(--rank-pc-bg, #f0f6ff);
    border-color: var(--rank-border, rgba(51, 138, 255, 0.1));
}

.rank-list.new {
    background: var(--rank-new-bg, #f6fff0);
    border-color: var(--rank-border, rgba(76, 175, 80, 0.1));
}

/* 排行榜标题样式 */
.rank-list > .rank-title {
    font-size: 1vw;
    font-weight: bold;
    margin-bottom: 0.8vw;
    padding-bottom: 0.5vw;
    border-bottom: 0.1vw solid;
    font-family: -apple-system;
    line-height: 1.2;
}

/* 排行榜标题颜色样式 */
.rank-list.hot > .rank-title {
    color: var(--rank-hot-color, #ff9900);
    border-bottom-color: var(--rank-hot-color, #ff9900);
}

.rank-list.pc > .rank-title {
    color: var(--rank-pc-color, #338aff);
    border-bottom-color: var(--rank-pc-color, #338aff);
}

.rank-list.new > .rank-title {
    color: var(--rank-new-color, #4caf50);
    border-bottom-color: var(--rank-new-color, #4caf50);
}

/* 排行榜项目样式 */
.rank-items {
    list-style: none;
    padding: 0;
    margin: 0;
}

.rank-item {
    display: flex;
    align-items: center;
    padding: 0.4vw;
    margin-bottom: 0.3vw;
    background: transparent;
    border-radius: 0.4vw;
    box-shadow: none;
    cursor: pointer;
    transition: all 0.2s ease;
    height: auto;
    min-height: 2vw;
    width: 24.2vw;
    min-width: 0;
    gap: 0.4vw;
}

.rank-item:hover {
    background: var(--rank-item-hover-bg);
    transform: translateY(-0.05vw);
    box-shadow: var(--rank-item-hover-shadow);
}

.rank-item img {
    flex-shrink: 0;
    width: 2.4vw;
    height: 2.4vw;
    border-radius: 0.3vw;
    object-fit: cover;
    border: 0.05vw solid var(--rank-image-border);
}

.rank-info {
   
    width: 14vw;
    min-width: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 0.1vw;
}

/* 游戏项目中的标题样式 */
.rank-item .rank-info .rank-title {
    font-size: 0.8vw;
    color: var(--rank-info-title-color);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    border-bottom: none;
    padding: 0;
    font-weight: 700;
    transition: all 0.3s ease;
    font-family: -apple-system;
    line-height: 1.2;
}

.rank-item .rank-info .rank-title.rank-first,
.rank-item .rank-info .rank-title.rank-second,
.rank-item .rank-info .rank-title.rank-third {
    color: var(--rank-hot-color, #ff9900);
    font-weight: 800;
    text-shadow: 0 0 1px rgba(255, 153, 0, 0.2);
}

.rank-item .rank-info .rank-title.rank-first {
    font-size: 1vw;
}

.rank-item .rank-info .rank-title.rank-second,
.rank-item .rank-info .rank-title.rank-third {
    font-size: 0.9vw;
}

/* 4-10名的游戏名称样式 */
.rank-item:not(:nth-child(-n+3)) .rank-info .rank-title {
    font-weight: 600;
    color: var(--rank-info-title-color);
}

.rank-item .rank-info .rank-title.new-game {
    color: var(--rank-new-color, #4caf50);
    font-weight: 600;
}

.rank-count {
    font-size: 0.7vw;
    color: var(--rank-count-color);
    display: flex;
    align-items: center;
    gap: 0.2vw;
    font-family: -apple-system;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.rank-count .fire-icon {
    display: inline-block;
    animation: fire 1.5s infinite;
    transform-origin: center;
    font-size: 0.8vw;
}

.download-btn {
    flex-shrink: 0;
    background: var(--download-btn-bg);
    color: var(--download-btn-color);
    border: none;
    border-radius: 0.2vw;
    padding: 0.2vw 0.4vw;
    font-size: 0.7vw;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    white-space: nowrap;
    transition: all 0.2s ease;
    font-family: -apple-system;
    min-width: 3vw;
    height: 1.5vw;
    display: flex;
    align-items: center;
    justify-content: center;
}

.download-btn:hover {
    background: var(--download-btn-hover-bg);
    transform: translateY(-0.05vw);
}

/* 排行榜类型切换按钮 */
.rank-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 1vw;
}

.rank-tab {
    padding: 0.5vw 1vw;
    margin: 0 0.25vw;
    border: none;
    border-radius: 0.2vw;
    background: var(--rank-tab-bg);
    color: var(--rank-tab-color);
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: -apple-system;
}

.rank-tab.active {
    background: var(--rank-tab-active-bg, #007bff);
    color: var(--rank-tab-active-color, white);
}

/* 深色主题样式 */
@media (prefers-color-scheme: dark) {
    :root {
        /* 热门榜深色主题 */
        --rank-hot-bg: rgba(255, 153, 0, 0.1);
        --rank-hot-color: #ffb74d;
        
        /* PC榜深色主题 */
        --rank-pc-bg: rgba(51, 138, 255, 0.1);
        --rank-pc-color: #64b5f6;
        
        /* 新游榜深色主题 */
        --rank-new-bg: rgba(76, 175, 80, 0.1);
        --rank-new-color: #81c784;
        
        /* 通用深色主题 */
        --rank-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
        --rank-border: rgba(255, 255, 255, 0.1);
        
        /* 排行榜项目深色主题 */
        --rank-item-bg: rgba(255, 255, 255, 0.05);
        --rank-item-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
        --rank-item-hover-bg: rgba(255, 255, 255, 0.08);
        --rank-item-hover-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
        --rank-number-color: var(--primary-color, #00a1d6);
        --rank-image-border: rgba(255, 255, 255, 0.1);
        --rank-info-title-color: var(--text-color, #e3e5e7);
        --rank-count-color: var(--primary-color, #00a1d6);
        
        /* 按钮深色主题 */
        --download-btn-bg: #ff4d4d;
        --download-btn-color: #fff;
        --download-btn-hover-bg: #ff6666;
        
        /* 标签深色主题 */
        --rank-tab-bg: rgba(255, 255, 255, 0.1);
        --rank-tab-color: #fff;
        --rank-tab-active-bg: #3399ff;
        --rank-tab-active-color: #fff;
    }

    .rank-item .rank-info .rank-title {
        color: var(--rank-info-title-color, #e3e5e7);
    }

    .rank-item .rank-info .rank-title.rank-first,
    .rank-item .rank-info .rank-title.rank-second,
    .rank-item .rank-info .rank-title.rank-third {
        color: var(--rank-hot-color, #ffb74d);
        text-shadow: 0 0 1px rgba(255, 183, 77, 0.3);
    }

    .rank-item .rank-info .rank-title.new-game {
        color: var(--rank-new-color, #81c784);
    }

    /* 新游标签深色模式样式 */
    .new-game-tag {
        display: inline-block;
        padding: 0.1vw 0.4vw;
        background: rgba(76, 175, 80, 0.15);
        color: #81c784;
        border-radius: 0.2vw;
        font-size: 0.7vw;
        font-weight: 600;
        margin-left: 0.4vw;
        font-family: -apple-system;
    }

    /* 4-10名的深色主题样式 */
    .rank-item:not(:nth-child(-n+3)) .rank-info .rank-title {
        color: var(--rank-info-title-color, #e3e5e7);
        font-weight: 600;
    }
}

/* 火焰图标动画 */
@keyframes fire {
    0% {
        transform: scale(1) rotate(-5deg);
        filter: brightness(1);
    }
    25% {
        transform: scale(1.1) rotate(5deg);
        filter: brightness(1.2);
    }
    50% {
        transform: scale(1) rotate(-5deg);
        filter: brightness(1.4);
    }
    75% {
        transform: scale(1.1) rotate(5deg);
        filter: brightness(1.2);
    }
    100% {
        transform: scale(1) rotate(-5deg);
        filter: brightness(1);
    }
}

.rank-stats {
    display: flex;
    flex-direction: row;
    gap: 0.4vw;
    align-items: center;
    font-size: 0.8vw;
    color: #666;
    margin-top: 0.2vw;
    font-family: -apple-system;
}

.ranking-want,
.ranking-played {
    border-radius: 0.2vw;
    font-size: 0.7vw;
    display: inline-flex;
    align-items: center;
    gap: 0.2vw;
    white-space: nowrap;
    font-family: -apple-system;
}

.ranking-want i,
.ranking-played i {
    font-size: 0.8vw;
    color: #ff6b6b;
    flex-shrink: 0;
}

.ranking-want span,
.ranking-played span {
    white-space: nowrap;
}

.rank-medal,
.rank-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.2vw;
    height: 2.2vw;
    border-radius: 50%;
    box-shadow: 0 0.07vw 0.28vw rgba(0,0,0,0.08);
    font-size: 1.2vw;
    font-weight: bold;
    text-align: center;
    color: var(--rank-number-color);
    font-family: -apple-system;
    background: var(--rank-item-hover-bg);
}

/* 返回顶部按钮样式 */
.back-to-top-btn {
    position: fixed;
    bottom: 5vw;
    right: 1.25vw;
    width: 2.5vw;
    height: 2.5vw;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.9);
    border: 0.125vw solid #e0e0e0;
    box-shadow: 0 0.125vw 0.625vw rgba(0, 0, 0, 0.1);
    cursor: pointer;
    display: none;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
    z-index: 1000;
    opacity: 0;
    transform: translateY(1.25vw);
}

.back-to-top-btn.visible {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.back-to-top-btn:hover {
    background-color: #007bff;
    border-color: #007bff;
    transform: translateY(-0.3125vw);
}

.back-to-top-btn:hover i {
    color: white;
    animation: bounce 0.5s ease infinite;
}

.back-to-top-btn i {
    font-size: 1.5vw;
    color: #666;
    transition: color 0.3s ease;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-0.1875vw);
    }
}