:root {
    --red: #D81E44;
    --dark-red: #A51834;
    --black: #121212;
    --dark-gray: #1E1E1E;
    --gold: #D4AF37;
    --light-gold: #F0E68C;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
}
body {
    background: linear-gradient(rgba(18,18,18,0.9), rgba(18,18,18,0.9)), 
                linear-gradient(135deg, #1a1a1a 0%, #000 100%);
    color: #fff;
    display: flex;
    min-height: 100vh;
}
.main-content {
    flex: 1;
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    max-width: calc(100% - 180px);
    margin-right: 30px;
    position: relative;
}
.main-content::after {
    content: '';
    position: absolute;
    right: -30px;
    top: 10%;
    bottom: 10%;
    width: 2px;
    background: var(--red);
}
.logo-container {
    display: flex;
    align-items: center;
    margin-bottom: 30px;
    gap: 20px;
}
.logo-img {
    width: 100px;
    height: 100px;
    border-radius: 20px;
    object-fit: cover;
    filter: drop-shadow(0 0 5px var(--red));
}
.server-title h1 {
    font-size: 2.5rem;
    color: var(--light-gold);
    text-shadow: 0 0 5px var(--light-gold), 0 0 15px var(--gold), 0 0 30px rgba(212,175,55,0.6);
}
.server-title p {
    font-size: 1.2rem;
    color: #ccc;
    margin-top: 5px;
}
.section {
    background: linear-gradient(135deg, var(--dark-gray), var(--black));
    border-radius: 20px;
    padding: 25px;
    margin-bottom: 25px;
    border: 1px solid rgba(216, 30, 68, 0.3);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}
.section h2 {
    color: var(--gold);
    margin-bottom: 15px;
    font-size: 1.5rem;
    border-bottom: 2px solid var(--red);
    padding-bottom: 10px;
}
.section p, .section a {
    font-size: 1.1rem;
    line-height: 1.6;
}
.section a {
    color: var(--light-gold);
    text-decoration: none;
}
.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.action-btn {
    display: inline-block;
    background: linear-gradient(135deg, var(--red), var(--dark-red));
    color: var(--light-gold) !important;
    text-decoration: none;
    padding: 12px 25px;
    border-radius: 15px;
    font-weight: bold;
    border: none;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.action-btn:visited {
    color: var(--light-gold) !important;
}
.action-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 0 15px rgba(216, 30, 68, 0.7);
    color: var(--light-gold) !important;
}
.action-btn:active {
    transform: scale(0.95);
}
.sidebar {
    width: 180px;
    background: linear-gradient(180deg, var(--dark-gray), var(--black));
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    border-left: 1px solid rgba(216, 30, 68, 0.3);
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    right: 0;
    height: 100vh;
    z-index: 100;
}
.sidebar-btn {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--dark-gray), var(--black));
    border: 2px solid var(--red);
    border-radius: 20px;
    margin: 15px 0;
    color: var(--gold);
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
}
.sidebar-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 0 20px rgba(216, 30, 68, 0.5);
}
.sidebar-btn:active {
    transform: scale(0.95);
}

/* 鎵嬫満绔紭鍖栵細搴曢儴鎮诞妯帓鎸夐挳 */
@media (max-width: 768px) {
    body {
        flex-direction: column;
        padding-bottom: 120px;
    }
    .main-content {
        max-width: 100%;
        padding: 20px;
    }
    .sidebar {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        height: auto;
        flex-direction: row;
        justify-content: space-around;
        align-items: center;
        border-left: none;
        border-top: 1px solid rgba(216, 30, 68, 0.3);
        background: linear-gradient(180deg, var(--dark-gray), var(--black));
        z-index: 999;
        padding: 10px 0;
        transform: none;
        top: auto;
    }
    .sidebar-btn {
        width: 80px;
        height: 80px;
        margin: 0 5px;
        font-size: 0.9rem;
    }
    .logo-container {
        flex-direction: column;
        text-align: center;
    }
    .server-title h1 {
        font-size: 2rem;
    }
    .section h2 {
        font-size: 1.3rem;
    }
}

/* 鍏憡鍔熻兘鏍峰紡锛堝畬鍏ㄤ繚鐣欙級 */
.announcement-box p:nth-child(n+4) {
    display: none;
}
.announcement-toggle {
    color: #FFD700;
    cursor: pointer;
    margin-top: 8px;
    display: inline-block;
}
.announcement-close {
    color: #888;
    cursor: pointer;
    text-align: right;
    margin-top: 8px;
    display: none;
}