.index_main {
    position: relative;
    width: 100%;
    min-height: 200px;
    display: block;
    margin: 0 auto;
    overflow: hidden; 
}
.index_mainbox {
    position: relative;
    width: 100%;
    max-width: 1200px;
    display: block;
    margin: 0 auto;

}


 /* 基础样式与重置 - 采用更现代的深色调与极简风格 */
    .hw-wrapper {
        font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
        color: #1a1a1a;
        line-height: 1.7;
        margin: 0;
        padding: 0;
        box-sizing: border-box;
        overflow-x: hidden;
    }

    .hw-wrapper * {
        box-sizing: inherit;
    }

    .hw-container {
        max-width: 1100px;
        margin: 0 auto;
        padding: 0 25px;
    }

    /* Hero 区域 - 风格：极简、科技感、沉浸式 */
    .hw-hero {
        position: relative;
        height: 100vh;
        min-height: 700px;
        background: url('bg2.webp') no-repeat center center/cover;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        text-align: center;
        color: #fff;
    }

    /* 遮罩层：采用更深邃的紫蓝色调，区分于版本一 */
    .hw-hero::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: radial-gradient(circle at center, rgba(10, 15, 30, 0.4) 0%, rgba(10, 15, 30, 0.8) 100%);
        z-index: 1;
    }

    .hw-hero-content {
        position: relative;
        z-index: 2;
        max-width: 850px;
        margin-top: -120px;
    }

    .hw-hero h1 {
        font-size: 4.5rem;
        margin-bottom: 24px;
        font-weight: 900;
        letter-spacing: -2px;
        line-height: 1.1;
        background: linear-gradient(135deg, #fff 0%, rgba(255,255,255,0.7) 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        text-shadow: 0 10px 30px rgba(0,0,0,0.3);
    }

    .hw-hero p {
        font-size: 1.6rem;
        color: rgba(255, 255, 255, 0.85);
        margin-bottom: 48px;
        font-weight: 300;
        max-width: 700px;
        margin-left: auto;
        margin-right: auto;
    }

    /* CTA 按钮：采用更现代的霓虹青色调 */
    .hw-btn-primary {
        background: #00f5d4;
        color: #050505;
        padding: 20px 60px;
        border-radius: 12px;
        text-decoration: none;
        font-weight: 800;
        font-size: 1.25rem;
        display: inline-flex;
        align-items: center;
        gap: 15px;
        box-shadow: 0 20px 40px rgba(0, 245, 212, 0.25);
        transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    }

    .hw-btn-primary:hover {
        transform: translateY(-8px) scale(1.02);
        box-shadow: 0 30px 60px rgba(0, 245, 212, 0.4);
        background: #00ffd5;
    }

    .hw-hero-footer {
        position: absolute;
        bottom: 60px;
        left: 50%;
        transform: translateX(-50%);
        z-index: 2;
        display: flex;
        gap: 40px;
        align-items: center;
        opacity: 0.7;
    }

    .hw-platform-icon {
        color: #fff;
        text-decoration: none;
        transition: all 0.3s;
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 8px;
    }

    .hw-platform-icon:hover {
        opacity: 1;
        transform: translateY(-5px);
    }

    .hw-platform-icon span {
        font-size: 0.75rem;
        font-weight: 500;
        letter-spacing: 1px;
    }

    /* 特点介绍：采用更优雅的网格布局 */
    .hw-section {
        padding: 120px 0;
        background: #fff;
    }

    .hw-section-dark {
        background: #0a0a0a;
        color: #fff;
    }

    .hw-section-title {
        text-align: center;
        margin-bottom: 80px;
    }

    .hw-section-title h2 {
        font-size: 3rem;
        font-weight: 800;
        margin-bottom: 20px;
        letter-spacing: -1px;
    }

    .hw-grid-3 {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }

    .hw-card {
        padding: 50px 40px;
        border-radius: 24px;
        background: #f9f9fb;
        transition: all 0.3s ease;
        border: 1px solid transparent;
    }

    .hw-card:hover {
        background: #fff;
        border-color: #eee;
        box-shadow: 0 30px 60px rgba(0,0,0,0.05);
        transform: translateY(-10px);
    }

    .hw-card .icon-box {
        width: 64px;
        height: 64px;
        background: #fff;
        border-radius: 16px;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 2rem;
        margin-bottom: 30px;
        box-shadow: 0 10px 20px rgba(0,0,0,0.05);
    }

    .hw-card h3 {
        font-size: 1.5rem;
        margin-bottom: 15px;
        font-weight: 700;
    }

    /* 权威数据：采用极简数字设计 */
    .hw-stats {
        padding: 100px 0;
        border-top: 1px solid #eee;
        border-bottom: 1px solid #eee;
    }

    .hw-stats-inner {
        display: flex;
        justify-content: space-between;
        text-align: center;
    }

    .hw-stat-item h4 {
        font-size: 4rem;
        font-weight: 900;
        margin: 0;
        color: #000;
        letter-spacing: -2px;
    }

    .hw-stat-item p {
        font-size: 1rem;
        color: #666;
        text-transform: uppercase;
        letter-spacing: 2px;
        margin-top: 5px;
    }

    /* 用户评价：气泡式卡片 */
    .hw-testimonial {
        background: #0a0a0a;
        color: #fff;
        padding: 120px 0;
    }

    .hw-testimonial-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }

    .hw-quote-card {
        padding: 40px;
        background: rgba(255,255,255,0.03);
        border-radius: 30px;
        border: 1px solid rgba(255,255,255,0.05);
    }

    .hw-quote-text {
        font-size: 1.25rem;
        line-height: 1.6;
        margin-bottom: 30px;
        color: rgba(255,255,255,0.9);
    }

    .hw-quote-author {
        display: flex;
        align-items: center;
        gap: 15px;
    }

    .hw-avatar {
        width: 48px;
        height: 48px;
        background: linear-gradient(45deg, #00f5d4, #4361ee);
        border-radius: 50%;
    }

    /* FAQ：简约手风琴感 */
    .hw-faq-container {
        max-width: 800px;
        margin: 0 auto;
    }

    .hw-faq-row {
        margin-bottom: 40px;
    }

    .hw-faq-row h4 {
        font-size: 1.4rem;
        margin-bottom: 12px;
        color: #000;
    }

    .hw-faq-row p {
        color: #555;
    }

    /* 响应式调整 */
    @media (max-width: 768px) {
        .hw-hero {
            height: auto;
            min-height: 450px;
            padding: 80px 0 60px;
            justify-content: flex-start;
        }

        .hw-hero h1 {
            font-size: 2.4rem;
            letter-spacing: -1px;
        }

        .hw-hero p {
            font-size: 1.1rem;
            margin-bottom: 30px;
        }

        .hw-btn-primary {
            padding: 16px 40px;
            font-size: 1.1rem;
            width: 80%;
            justify-content: center;
        }

        .hw-hero-footer {
            position: relative;
            bottom: auto;
            left: auto;
            transform: none;
            margin-top: 40px;
            gap: 20px;
            flex-wrap: wrap;
            justify-content: center;
            opacity: 0.9;
        }

        .hw-platform-icon span {
            display: none; /* 移动端隐藏文字只留图标，保持整洁 */
        }

        .hw-grid-3, .hw-stats-inner, .hw-testimonial-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }

        .hw-stats-inner {
            flex-direction: column;
            gap: 40px;
        }

        .hw-section {
            padding: 60px 0;
        }

        .hw-section-title h2 {
            font-size: 2.2rem;
        }
    }