/* 轮播区 */
.carousel-section {
    margin-top: 0;
}

.carousel-container {
    position: relative;
    height: 500px;
    overflow: hidden;
}

.carousel-slides {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.6s ease;
    z-index: 1;
}

.slide.active {
    opacity: 1;
    z-index: 2;
}

.slide-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.7);
}

.slide-content {
    position: absolute;
    bottom: 20%;
    left: 0;
    right: 0;
    text-align: center;
    z-index: 3;
    color: white;
    text-shadow: 0 2px 12px black;
    background: linear-gradient(90deg, transparent, rgba(0,0,0,0.6), transparent);
    padding: 20px;
}

.slide-content i {
    font-size: 58px;
    background: linear-gradient(45deg, #ffd966, #77aaff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.tech-tag {
    background: rgba(0,0,0,0.6);
    display: inline-block;
    padding: 6px 16px;
    border-radius: 30px;
    font-size: 0.8rem;
    margin-top: 12px;
    border-left: 3px solid #0ff;
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.5);
    border: none;
    color: white;
    padding: 12px;
    cursor: pointer;
    z-index: 10;
    border-radius: 50%;
    font-size: 1.2rem;
    transition: 0.2s;
}

.carousel-btn:hover {
    background: rgba(0,0,0,0.8);
}

.prev { left: 16px; }
.next { right: 16px; }

.software-brief {
    background: #0f111f;
    text-align: center;
    padding: 12px;
    font-weight: bold;
    letter-spacing: 1px;
}

/* 三绝令按钮 */
.three-paladin {
    padding: 60px 0;
    text-align: center;
}

.section-title {
    font-size: 2rem;
    margin-bottom: 48px;
    background: linear-gradient(135deg, #e6c27a, #7fb4ff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.button-group {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

/* 按钮基础样式 */
.hero-btn {
    padding: 16px 40px;
    font-size: 1.3rem;
    border-radius: 60px;
    text-decoration: none;
    position: relative;
    transition: 0.2s;
    font-weight: bold;
    display: inline-block;
    box-shadow: 0 6px 14px rgba(0,0,0,0.3);
}

.hero-btn i {
    margin-right: 12px;
}

.hero-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 0 20px currentColor;
}

/* 购买·续费卡 按钮颜色（青绿科技风） */
.renew-btn {
    background: linear-gradient(145deg, #d9c808, #08b922);
    border: 1px solid #4909e0;
    color: #e0f5ff;
}
.renew-btn:hover {
    border-color: #6822d2;
    box-shadow: 0 0 20px #5004d4;
}

/* 购买·注册卡 按钮颜色（金色武侠风） */
.register-btn {
    background: linear-gradient(145deg, #a505c5, #efa206);
    border: 1px solid #f5b042;
    color: #fff5e0;
}
.register-btn:hover {
    border-color: #ffdd88;
    box-shadow: 0 0 20px #f5b042;
}

/* 下载小蜜 按钮颜色（深红/赤焰风） */
.download-btn {
    background: linear-gradient(145deg, #03038e, #6e2418);
    border: 1px solid #ff6a4b;
    color: #ffe6e0;
}
.download-btn:hover {
    border-color: #ff9a7a;
    box-shadow: 0 0 20px #ff6a4b;
}

/* 特色卡片 */
.unique-features {
    background: radial-gradient(circle at 10% 20%, #11121e, #05070f);
    padding: 60px 0;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
    margin-top: 40px;
}

.feature-card {
    background: rgba(20, 30, 48, 0.7);
    backdrop-filter: blur(4px);
    border-radius: 32px;
    padding: 32px 20px;
    text-align: center;
    border: 1px solid #2c3e50;
    transition: 0.3s;
}

.feature-card:hover {
    border-color: #f5b042;
    transform: scale(1.02);
}

.card-icon i {
    font-size: 48px;
    color: #f5b042;
}

.tech-badge {
    background: #1a2a3a;
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    margin-top: 12px;
}