body {
    padding: 20px;
    background-color: #f5f5f5;
    overflow-y: scroll;
    margin: 0;
}
a {
    text-decoration: none;
}

/* 返回主页按钮 */
.back-home {
    position: fixed;
    top: 20px;
    left: 20px;
    padding: 10px 18px;
    background: linear-gradient(135deg, #1a1a40, #3a0ca3);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    z-index: 1000;
}
.back-home:hover {
    background: linear-gradient(135deg, #2a2a60, #5a1cd3);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

/* 标题样式 */
h1 {
    text-align: center;
    margin: 0 0 30px;
    font-size: 2.2rem;
    background: linear-gradient(90deg, #6a11cb, #3a0ca3);
    background-clip: text;
    color: transparent;
}

/* 分类区块 */
.section {
    margin-bottom: 24px;
    padding: 0 20px;
    box-sizing: border-box;
}
.section-title {
    max-width: 1200px;
    margin: 0 auto 10px;
    font-size: 20px;
    font-weight: 600;
    text-align: center;
    box-sizing: border-box;
}
.section-title.ongoing {
    color: #27ae60;
}
.section-title.preparing {
    color: #e67e22;
}
.section-title.archived {
    color: #7f8c8d;
}

/* 提示文字 */
.empty-hint {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    color: #999;
    font-size: 15px;
    padding: 10px 0 0 0;
}

/* 按钮网格样式 */
.button-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    max-width: 1300px;
    margin: 0 auto;
}
.button-grid a {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 250px;
    padding: 15px;
    background: linear-gradient(135deg, #1a1a40, #3a0ca3);
    color: white;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(58, 12, 163, 0.5);
    font-size: 1.1rem;
    box-sizing: border-box;
}
.button-grid a:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(90, 120, 255, 0.6);
    filter: brightness(1.05);
}

.host {
    position: absolute;
    right: 6px;
    bottom: 2px;
    font-size: 12px;
    background: rgba(0, 0, 0, 0.3);
    padding: 1px 4px;
    border-radius: 4px;
}
.note {
    position: absolute;

    right: 6px;
    top: 2px;
    font-size: 11px;
    opacity: 0.8;
    pointer-events: none;
}

/* 响应式设计 */
@media (max-width: 768px) {
    body {
        padding: 5px;
    }
    .back-home {
        top: 6px;
        left: 6px;
        padding: 6px 12px;
        font-size: 14px;
    }
    h1 {
        font-size: 1.8rem;
    }
    .section {
        padding: 0 10px;
        margin-bottom: 16px;
    }
    .section-title {
        font-size: 18px;
        margin-bottom: 8px;
    }
    .button-grid {
        max-width: 100%;
        gap: 10px;
    }
    .button-grid a {
        width: calc(50% - 5px);
        max-width: 240px;
        padding: 12px;
        font-size: 1rem;
    }
    .host {
        font-size: 10px;
        right: 2px;
    }
    .note {
        font-size: 9px;
        right: 4px;
    }
    .empty-hint {
        font-size: 14px;
        padding: 15px 0;
    }
}
@media (max-width: 480px) {
    .section {
        padding: 0 5px;
    }
    .button-grid {
        gap: 8px;
    }
    .button-grid a {
        width: 220px;
        max-width: 100%;
        font-size: 0.95rem;
    }
}