/* ========== 轮播组件样式 ========== */
.carousel-container {
    position: relative;
    height: 500px;
    overflow: hidden;
    border-radius: 1rem;
    box-shadow: 0 20px 40px rgba(0,0,0,0.15);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
}

.carousel-slide.active {
    opacity: 1;
    transform: translateX(0);
    z-index: 2;
}

.carousel-slide.prev {
    transform: translateX(-100%);
}

.carousel-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
    text-align: center;
    color: white;
    text-shadow: 0 2px 8px rgba(0,0,0,0.5);
    animation: fadeInUp 0.8s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.carousel-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.3);
    z-index: 1;
}

.carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    z-index: 3;
    padding: 0 1rem;
}

.carousel-btn {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid rgba(255,255,255,0.2);
    outline: none;
    backdrop-filter: blur(10px);
    font-size: 1.2rem;
}

.carousel-btn:hover {
    background: rgba(255,255,255,0.25);
    transform: scale(1.15);
    border-color: rgba(255,255,255,0.4);
    box-shadow: 0 8px 25px rgba(0,0,0,0.2);
}

.carousel-dots {
    position: absolute;
    bottom: 2rem;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    z-index: 3;
    gap: 0.75rem;
}

.carousel-dot {
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.carousel-dot.active {
    background: white;
    transform: scale(1.2);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.carousel-title {
    animation: fadeInUp 0.6s ease both;
}

.carousel-desc {
    animation: fadeInUp 0.6s ease 0.2s both;
}

.carousel-btn-animate {
    animation: fadeInUp 0.6s ease 0.4s both;
}

/* ========== 下拉菜单样式 ========== */
.dropdown-menu {
    /* display is now controlled by JS */
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: auto;
}