/* ========== 全屏加载动画样式 ========== */
        .loader-fullscreen {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 999;
            transition: opacity 0.5s ease, visibility 0.5s ease;
        }
        
        .loader-fullscreen.hide {
            opacity: 0;
            visibility: hidden;
        }
        
        .loader-fullscreen img {
            max-width: 80%;
            max-height: 80%;
            object-fit: contain;
            animation: fadeInScale 0.5s ease;
        }
        
        @keyframes fadeInScale {
            from {
                opacity: 0;
                transform: scale(0.9);
            }
            to {
                opacity: 1;
                transform: scale(1);
            }
        }
        
        /* ========== Hero 区域样式 ========== */
.hero-section {
    position: relative;
    min-height: 500px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    overflow: hidden;
    margin-bottom: 40px;
    z-index: 1;  /* 降低 */
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
     z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 80px 20px 120px;
    max-width: 900px;
    margin: 0 auto;
}

.hero-icon {
    margin-bottom: 24px;
    animation: float 4s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    margin-bottom: 16px;
    color: white;
}

.gradient-text {
    background: linear-gradient(135deg, #fff 0%, #f0e7ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.hero-subtitle {
    font-size: 20px;
    color: rgba(255,255,255,0.9);
    margin-bottom: 30px;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    color: white;
    font-size: 16px;
    font-weight: 500;
    background: rgba(255,255,255,0.15);
    padding: 8px 20px;
    border-radius: 40px;
    backdrop-filter: blur(5px);
}

.hero-feature img {
    width: 20px;
    height: 20px;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.hero-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    border-radius: 60px;
    font-size: 18px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
}

.hero-btn img {
    width: 24px;
    height: 24px;
}

.hero-btn-primary {
    background: #3498DB;
    color: white;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.hero-btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
}

.hero-btn-outline {
    background: rgba(255,255,255,0.1);
    color: white;
    border: 1px solid rgba(255,255,255,0.3);
    backdrop-filter: blur(10px);
}

.hero-btn-outline:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-3px);
}

.hero-wave {
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    z-index: 2;
}

.hero-wave svg {
    display: block;
    width: 100%;
    height: 60px;
}

/* 响应式 */
@media (max-width: 768px) {
    .hero-section {
        min-height: 450px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 16px;
    }
    
    .hero-content {
        padding: 60px 20px 100px;
    }
    
    .hero-btn {
        padding: 14px 28px;
        font-size: 16px;
    }
}
        
        /* ========== 功能卡片样式 ========== */
        .features {
            max-width: 1200px;
            margin: 60px auto;
            padding: 0 20px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }
        
        .feature-card {
            background: var(--bg-primary);
            border-radius: 24px;
            padding: 32px 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
            border: 1px solid var(--border-color);
        }
        
        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        
        .feature-card .feature-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 20px;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        
        .feature-card .feature-icon img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }
        
        .feature-card h3 {
            font-size: 20px;
            margin-bottom: 12px;
            color: var(--text-primary);
        }
        
        .feature-card p {
            color: var(--text-secondary);
            line-height: 1.6;
            font-size: 15px;
        }
        
        /* ========== 统计区域 ========== */
        .stats-section {
            background: linear-gradient(135deg, var(--primary-light) 0%, var(--bg-primary) 100%);
            padding: 60px 20px;
            margin: 40px 0;
        }
        
        .stats-grid {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 30px;
            text-align: center;
        }
        
        .stat-item {
            padding: 20px;
        }
        
        .stat-number {
            font-size: 48px;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 10px;
        }
        
        .stat-label {
            font-size: 16px;
            color: var(--text-secondary);
        }
        
        /* ========== CTA 区域 ========== */
        .cta-section {
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-primary);
            border-radius: 30px;
            margin: 40px 20px;
            box-shadow: var(--shadow-md);
        }
        
        .cta-section h2 {
            font-size: 32px;
            margin-bottom: 20px;
        }
        
        .cta-section p {
            color: var(--text-secondary);
            margin-bottom: 30px;
            font-size: 18px;
        }
        
        .btn-contact {
            padding: 12px 32px;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
            display: inline-block;
        }
        
        .btn-contact.primary {
            background: var(--primary-color);
            color: white;
        }
        
        .btn-contact.primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
        }
        
        .btn-contact.secondary {
            border: 2px solid var(--primary-color);
            color: var(--primary-color);
            margin-left: 15px;
        }
        
        .btn-contact.secondary:hover {
            background: var(--primary-color);
            color: white;
            transform: translateY(-2px);
        }
        
        /* ========== 用户评价 ========== */
        .testimonial-section {
            padding: 60px 20px;
            background: var(--bg-secondary);
        }
        
        .testimonial-grid {
            max-width: 1200px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }
        
        .testimonial-card {
            background: var(--bg-primary);
            border-radius: 20px;
            padding: 30px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: transform 0.3s;
        }
        
        .testimonial-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }
        
        .testimonial-card .testimonial-avatar {
            width: 80px;
            height: 80px;
            margin: 0 auto 20px;
        }
        
        .testimonial-card .testimonial-avatar img {
            width: 100%;
            height: 100%;
            border-radius: 50%;
            object-fit: cover;
        }
        
        .testimonial-text {
            font-style: italic;
            color: var(--text-secondary);
            margin-bottom: 15px;
            line-height: 1.6;
        }
        
        .testimonial-name {
            font-weight: 600;
            color: var(--text-primary);
        }
        
        /* ========== FAQ ========== */
        .faq-section {
            max-width: 800px;
            margin: 60px auto;
            padding: 0 20px;
        }
        
        .faq-item {
            background: var(--bg-primary);
            border-radius: 12px;
            margin-bottom: 16px;
            overflow: hidden;
            border: 1px solid var(--border-color);
        }
        
        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background 0.3s;
        }
        
        .faq-question:hover { background: var(--bg-secondary); }
        
        .faq-question .icon {
            font-size: 20px;
            transition: transform 0.3s;
        }
        
        .faq-question.active .icon { transform: rotate(180deg); }
        
        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            color: var(--text-secondary);
            line-height: 1.6;
        }
        
        .faq-answer.show {
            padding: 0 24px 18px 24px;
            max-height: 200px;
        }
        
        /* ========== 合作伙伴 ========== */
        .partner-section {
            padding: 40px 20px;
            text-align: center;
            border-top: 1px solid var(--border-color);
        }
        
        .partner-logos {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 30px;
        }
        
        .partner-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }
        
        .partner-item img {
            width: 48px;
            height: 48px;
            opacity: 0.7;
            transition: opacity 0.3s;
        }
        
        .partner-item:hover img { opacity: 1; }
        
        .partner-item span {
            font-size: 14px;
            color: var(--text-muted);
        }
        
        @media (max-width: 768px) {
            .carousel-slides { height: 400px; }
            .carousel-content h1 { font-size: 32px; }
            .carousel-content h2 { font-size: 24px; }
            .carousel-content p { font-size: 14px; }
            .carousel-btn { width: 38px; height: 38px; font-size: 20px; }
            .stat-number { font-size: 32px; }
            .cta-section h2 { font-size: 24px; }
            .cta-section p { font-size: 16px; }
            .btn-contact.secondary { margin-left: 0; margin-top: 15px; }
            .features { grid-template-columns: 1fr; }
        }