*, *::before,*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    overflow-x: hidden;
}

/* 背景装饰 */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(59, 130, 246, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.06) 0%, transparent 40%);
    animation: bgFloat 25s ease-in-out infinite;
    z-index: 0;
}

@keyframes bgFloat {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(-2%, 1%) rotate(1deg); }
}

.carousel-section {
    position: relative;
    z-index: 1;
    width: 100%;
    margin: 0 auto;
}

/* 标题区域 */
.carousel-header {
    text-align: center;
    margin-bottom: 48px;
}

.carousel-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(59, 130, 246, 0.12);
    border: 1px solid rgba(59, 130, 246, 0.25);
    color: #60a5fa;
    padding: 6px 18px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.carousel-badge svg {
    width: 14px;
    height: 14px;
}

.carousel-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 700;
    color: #ffffff;
    letter-spacing: -0.02em;
    margin-bottom: 10px;
}

.carousel-header h2 span {
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.carousel-header p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 1rem;
    max-width: 500px;
    margin: 0 auto;
}

/* 轮播容器 */
.carousel-wrapper {
    position: relative;
    padding: 20px 0;
}

/* 左右渐变遮罩 */
.carousel-wrapper::before,
.carousel-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 80px;
    z-index: 5;
    pointer-events: none;
}

.carousel-wrapper::before {
    left: 0;
 
}

.carousel-wrapper::after {
    right: 0;

}

.carousel-viewport {
    overflow: hidden;
    border-radius: 16px;
    padding: 10px 0;
}

.carousel-track {
    display: flex;
    gap: 20px;
    transition: transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: transform;
}

.carousel-track.no-transition {
    transition: none;
}

/* 证书卡片 */
.cert-card {
    flex-shrink: 0;
    width: 100px;
    height: 180px;
    background: #ffffff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2), 0 1px 4px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}

.cert-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    pointer-events: none;
}

.cert-card:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 12px 32px rgba(59, 130, 246, 0.3), 0 4px 12px rgba(0, 0, 0, 0.15);
}

.cert-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* 导航按钮 */
.carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s ease;
}

.carousel-nav:hover {
    background: rgba(59, 130, 246, 0.3);
    border-color: rgba(59, 130, 246, 0.5);
    transform: translateY(-50%) scale(1.1);
}

.carousel-nav:active {
    transform: translateY(-50%) scale(0.95);
}

.carousel-nav svg {
    width: 20px;
    height: 20px;
}

.carousel-nav.prev {
    left: 10px;
}

.carousel-nav.next {
    right: 10px;
}

/* 指示器 */
.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 32px;
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0;
}

.carousel-dot:hover {
    background: rgba(255, 255, 255, 0.4);
}

.carousel-dot.active {
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    width: 24px;
    border-radius: 4px;
}

/* 进度条 */
.carousel-progress {
    width: 100%;
    max-width: 200px;
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    margin: 20px auto 0;
    overflow: hidden;
}

.carousel-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #60a5fa, #a78bfa);
    border-radius: 2px;
    width: 0%;
    transition: width 0.1s linear;
}

/* 暂停提示 */
.pause-indicator {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    color: #ffffff;
    padding: 6px 14px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 10;
}

.pause-indicator.visible {
    opacity: 1;
    transform: translateY(0);
}

.pause-indicator svg {
    width: 12px;
    height: 12px;
}

/* 响应式 */
@media (max-width: 768px) {
    body {
        padding: 30px 10px;
    }

    .carousel-wrapper::before,
    .carousel-wrapper::after {
        width: 40px;
    }

    .carousel-nav {
        width: 36px;
        height: 36px;
    }

    .carousel-nav svg {
        width: 16px;
        height: 16px;
    }

    .carousel-nav.prev {
        left: 5px;
    }

    .carousel-nav.next {
        right: 5px;
    }
}