/* =============== 按钮模块 =============== */
.bottom-link {
    margin-top: 15px;
}

.index-go-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 40px;
    background: linear-gradient(45deg, #4facfe, #00f2fe);
    color: white;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.3rem;
    transition: all 0.4s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(79, 172, 254, 0.4);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.index-go-btn i {
    margin-left: 10px;
    transition: transform 0.3s ease;
}

.index-go-btn:before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: linear-gradient(45deg, #00f2fe, #4facfe);
    transition: width 0.5s ease;
    z-index: -1;
}

.index-go-btn:hover {
    transform: translateY(-4px) scale(1.03);
    box-shadow: 0 12px 25px rgba(79, 172, 254, 0.6);
}

.index-go-btn:hover:before {
    width: 100%;
}

.index-go-btn:hover i {
    transform: translateX(5px);
}

/* =============== 控制按钮模块 =============== */
.control-buttons {
    position: absolute;
    top: 30px;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 40px;
    z-index: 100;
}

.background-btn-container, .music-btn-container {
    opacity: 0.85;
    transition: all 0.3s ease;
}

.background-btn-container:hover, .music-btn-container:hover {
    opacity: 1;
    transform: translateY(-3px);
}

.custom-bg-btn, .music-btn {
    padding: 12px 25px;
    background: rgba(15, 23, 42, 0.7);
    color: #4facfe;
    border: 1px solid rgba(79, 172, 254, 0.3);
    border-radius: 30px;
    cursor: pointer;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.1rem;
    font-weight: 500;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.custom-bg-btn:hover, .music-btn:hover {
    background: rgba(79, 172, 254, 0.2);
    color: white;
    border-color: rgba(79, 172, 254, 0.7);
}