.ad-unlock-btn-wrapper { text-align: center; margin: 20px 0; position: relative; }
.ad-unlock-btn {
    background: linear-gradient(135deg, #ff6600 0%, #ff9900 100%);
    color: #fff;
    padding: 16px 32px;
    border: none;
    cursor: pointer;
    border-radius: 50px;
    font-size: 16px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 15px rgba(255, 102, 0, 0.3);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    z-index: 1;
}
.ad-unlock-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
    z-index: -1;
}
.ad-unlock-btn:hover::before {
    left: 100%;
}
.ad-unlock-btn:hover {
    background: linear-gradient(135deg, #e55b00 0%, #e57300 100%);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 102, 0, 0.4);
}
.ad-unlock-btn:active {
    transform: translateY(0);
    box-shadow: 0 4px 12px rgba(255, 102, 0, 0.3);
}
.ad-unlock-btn:disabled {
    background: linear-gradient(135deg, #cccccc 0%, #eeeeee 100%);
    cursor: not-allowed;
    transform: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}
.ad-unlock-btn.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.8;
}
.ad-unlock-btn.loading span {
    opacity: 0.8;
}
.ad-unlock-msg {
    font-size: 14px;
    font-weight: 500;
    animation: fadeIn 0.5s ease;
    display: inline-block;
    margin-left: 15px;
}
.ad-unlock-success {
    color: #4CAF50;
    animation: pulse 2s infinite;
}

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

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .ad-unlock-btn {
        padding: 14px 24px;
        font-size: 14px;
    }
    .ad-unlock-msg {
        font-size: 12px;
        margin-left: 10px;
    }
}

@media (max-width: 480px) {
    .ad-unlock-btn-wrapper {
        margin: 15px 0;
    }
    .ad-unlock-btn {
        padding: 12px 20px;
        font-size: 13px;
        border-radius: 40px;
    }
    .ad-unlock-msg {
        display: block;
        margin-left: 0;
        margin-top: 10px;
    }
}