* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

        :root {
            --blue: #3B82F6;
            --blue-dark: #2563EB;
            --blue-light: #EFF6FF;
            --blue-mid: #DBEAFE;
            --green: #22C55E;
            --text-primary: #1E293B;
            --text-secondary: #64748B;
            --text-muted: #94A3B8;
            --border: #E2E8F0;
            --bg: #F8FAFC;
            --white: #FFFFFF;
            --radius: 12px;
            --shadow: 0 4px 24px rgba(59, 130, 246, 0.08);
            --shadow-lg: 0 12px 48px rgba(59, 130, 246, 0.15);
        }

        body {
            color: #333;
            line-height: 1.6;
        }

        /* 顶部导航 */
        .header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 40px;
            background: #fff;
            position: fixed;
            width: 100%;
            top: 0;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 500;
        }

        .logo img {
            width: 36px;
            height: 36px;
            border-radius: 4px;
        }

        .header-download-btn {
            background: var(--blue);
            color: white;
            border: none;
            padding: 10px 22px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.2s, transform 0.1s;
        }

        .header-download-btn:hover {
            background: var(--blue-dark);
            transform: translateY(-1px);
        }

        /* 首屏 Hero 区 */
        .hero {

            background-image: url(../img/bg.png);
            padding: 40px 20px 60px;
            text-align: center;
            margin-top: 40px;
        }

        .hero-c {
            display: flex;
            max-width: 1200px;
            margin: 0 auto;
        }

        .hero-l {
            width: 60%;
        }

        .hero-l img {
            width: 100%;
            height: 100%;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: white;
            border: 1px solid var(--blue-mid);
            color: var(--blue);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 14px;
            border-radius: 20px;
            margin-bottom: 24px;
            box-shadow: 0 2px 8px rgba(59, 130, 246, 0.1);
        }

        .hero-badge .dot {
            width: 6px;
            height: 6px;
            background: var(--green);
            border-radius: 50%;
        }

        .hero-r {
            text-align: left;
            margin-left: 40px;
        }

        .hero-r h1 {
            margin-top: 40px;
            font-size: 64px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 16px;
            color: #1E293B;
        }

        .hero-r .h-h-s {
            font-size: 32px;
        }

        .h-r-p {
            font-size: 24px;
            color: #1E293B;
            margin-bottom: 16px;
        }

        .h-r-p span {
            color: #00CE45;
        }

        .hero-title p {
            color: #00CE45;
        }

        .hero-desc {
            font-size: 12px;
            color: #666;
            margin-bottom: 20px;
        }

        .hero-buttons {
            justify-content: center;
            gap: 12px;
            margin-bottom: 16px;
        }



        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(59, 130, 246, 0.45);
        }



        .btn-secondary :hover {
            border-color: var(--blue);
            color: var(--blue);
            transform: translateY(-2px);
        }


        .btn-primary {
            background: linear-gradient(135deg, #3B82F6, #60A5FA);
            color: white;
            border: none;
            padding: 12px 90px;
            border-radius: 10px;
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 8px 24px rgba(59, 130, 246, 0.35);
            transition: transform 0.2s, box-shadow 0.2s;
            text-decoration: none;
        }

        .btn-secondary {
            background: white;
            color: var(--text-primary);
            border: 1.5px solid var(--border);
            padding: 14px 32px;
            border-radius: 10px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: border-color 0.2s, transform 0.2s;
            text-decoration: none;
        }

        .hero-stats {
            display: flex;
            gap: 60px;
            margin-bottom: 16px;
        }

        .stat-item {
            text-align: center;
        }

        .stat-number {
            font-size: 24px;
            font-weight: 600;
            color: #656565;
        }

        .h-r-pt {
            display: flex;
            align-items: center;
            font-size: 20px;
            color: #000000;
        }


        .icon-placeholder {
            width: 20px;
            height: 20px;
            margin: 0 5px 0 10px;
        }
        .icon-placeholder img{
            width: 100%;
            height: 100%;
             vertical-align: text-top;
        }

        .stat-label {
            font-size: 12px;
            color: #666;
        }

        /* 核心功能区 */
        .features-section {
            padding: 60px 40px;
            background: #F0F5FF;
        }

        .f-s-c {
            max-width: 1200px;
            margin: 0 auto;
            text-align: center;
        }

        .section-subtitle {
            font-size: 12px;
            color: #4080ff;
            margin-bottom: 8px;
            font-weight: 700;
        }

        .info {
            background-color: #EFF6FF;
            padding: 5px;
            border-radius: 10px;
        }

        .section-title {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 8px;
        }

        .section-desc {
            font-size: 16x;
            color: #666;
            margin-bottom: 30px;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }

        .feature-card {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
            text-align: center;
        }

        .feature-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: var(--blue-mid);
        }

        .feature-icon {
            display: inline-block;
            width: 48px;
            height: 48px;
            background: var(--blue-light);
            border-radius: 12px;
            font-size: 24px;
            margin-bottom: 16px;
        }

        .feature-card h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: #3B82F6;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            text-align: left;
        }

        .features-img {
            margin-top: 16px;
            display: flex;
            border-radius: 10px;
            background-color: #FFF;
            padding: 30px;
        }

        .features-img img {
            flex: 1;
            width: 33%;
            display: block;
            object-fit: cover;
        }

        /* 信任优势区 */
        .trust-section {
            padding: 60px 40px;
            background: #f8fafc;
        }

        .t-s-c {
            max-width: 1200px;
            margin: 0 auto;
            text-align: center;
        }

        .trust-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .trust-item {
            background: #fff;
            padding: 12px 16px;
            border-radius: 6px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
            text-align: left;
            border: 1px solid #3B82F6;
        }

        .trust-icon {
            width: 40px;
            height: 40px;
            background: #e8f0ff;
            border-radius: 50%;
            flex-shrink: 0;
            margin-top: 8px;
        }

        .trust-content h4 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 4px;
            color: #3B82F6;
        }

        .trust-content p {
            font-size: 14px;
            color: #666;
        }

        /* FAQ 区 */
        /* .faq {
            background: white;
        } */

        .container {
            max-width: 500px;
            margin: 0 auto;
            padding: 60px 40px;
            background: #fff;
            text-align: center;
        }

        .faq-list {

            display: flex;
            flex-direction: column;
            gap: 2px;
            text-align: left;
        }

        .faq-item {
            border: 1px solid var(--border);
            border-radius: 10px;
            overflow: hidden;
        }

        .faq-q {
            padding: 18px 24px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: white;
            transition: background 0.2s;
        }

        .faq-q:hover {
            background: var(--blue-light);
        }

        .faq-q .arrow {
            font-size: 12px;
            color: var(--text-muted);
            transition: transform 0.25s;
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            background: var(--bg);
            padding: 0 24px;
        }

        .faq-item.open .faq-a {
            max-height: 200px;
            padding: 16px 24px;
        }

        .faq-item.open .arrow {
            transform: rotate(180deg);
        }

        /* 底部行动区 */
        .cta-section {
            background: linear-gradient(to right, #165DFF, #4080ff);
            color: #fff;
            padding: 40px 20px;
            text-align: center;
        }

        .cta-title {
            font-size: 30px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .cta-desc {
            font-size: 15px;
            opacity: 0.9;
            margin-bottom: 20px;
        }

        .cta-btn {
            background: white;
            color: var(--blue-dark);
            border: none;
            padding: 14px 36px;
            border-radius: 10px;
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
        }

        .cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
        }