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

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
            line-height: 1.6;
            color: #1e293b;
        }

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ── Hero ── */
        .hero {
            background: linear-gradient(135deg, #3730a3 0%, #7c3aed 100%);
            color: white;
            padding: 80px 0 72px;
            text-align: center;
        }

        .hero-badge {
            display: inline-block;
            background: rgba(255,255,255,.15);
            border: 1px solid rgba(255,255,255,.3);
            border-radius: 20px;
            padding: 5px 16px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 20px;
            letter-spacing: .04em;
        }

        .hero-pricing-note {
            margin-top: 20px;
            font-size: 15px;
            opacity: .92;
        }

        .hero-pricing-note a {
            color: #fff;
            font-weight: 600;
            text-decoration: underline;
        }

        .hero h1 {
            font-size: 42px;
            font-weight: 800;
            margin-bottom: 18px;
            line-height: 1.2;
        }

        .hero p {
            font-size: 18px;
            opacity: .85;
            max-width: 560px;
            margin: 0 auto;
        }

        /* ── Category label ── */
        .cat-label {
            display: flex;
            align-items: center;
            gap: 12px;
            max-width: 1200px;
            margin: 52px auto 0;
            padding: 0 24px;
        }

        .cat-label .tag {
            font-size: 11px;
            font-weight: 700;
            letter-spacing: .08em;
            text-transform: uppercase;
            color: #7c3aed;
            background: #f5f3ff;
            border: 1px solid #ddd6fe;
            padding: 3px 12px;
            border-radius: 20px;
        }

        .cat-label hr {
            flex: 1;
            border: none;
            border-top: 1px solid #e2e8f0;
        }

        /* ── Feature section ── */
        .features-section {
            padding: 0 0 80px;
            background: #f8fafc;
        }

        .feature-detail {
            display: flex;
            align-items: center;
            gap: 64px;
            padding: 64px 0;
            border-bottom: 1px solid #e2e8f0;
        }

        .feature-detail:last-child { border-bottom: none; }

        /* 偶数模块：文左图右（HTML 统一 visual → content） */
        .feature-detail.feature-detail--reverse {
            flex-direction: row-reverse;
        }

        .feature-visual {
            flex: 1;
            min-width: 0;
        }

        .feature-visual img {
            width: 100%;
            border-radius: 12px;
            box-shadow: 0 8px 32px rgba(0,0,0,0.12);
        }

        /* SVG mock screenshot fallback */
        .mock-screen {
            background: #fff;
            border-radius: 12px;
            box-shadow: 0 8px 32px rgba(0,0,0,0.12);
            overflow: hidden;
            border: 1px solid #e2e8f0;
        }

        .mock-topbar {
            background: #1e293b;
            height: 40px;
            display: flex;
            align-items: center;
            padding: 0 16px;
            gap: 10px;
        }

        .mock-dot { width: 10px; height: 10px; border-radius: 50%; }

        .mock-body { padding: 20px; }

        .mock-kpi-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 8px;
            margin-bottom: 12px;
        }

        .mock-kpi {
            background: #f8fafc;
            border-radius: 8px;
            padding: 10px 12px;
            border-top: 3px solid;
        }

        .mock-kpi .mk-val { font-size: 17px; font-weight: 700; color: #1e293b; }
        .mock-kpi .mk-lab { font-size: 10px; color: #94a3b8; margin-top: 2px; }

        .mock-chart {
            background: #f8fafc;
            border-radius: 8px;
            height: 160px;
            display: flex;
            align-items: flex-end;
            padding: 10px 10px 10px;
            gap: 4px;
        }

        .mock-bar {
            flex: 1;
            border-radius: 3px 3px 0 0;
            opacity: .75;
        }

        /* 脱敏：对金额/编号等敏感字段做模糊处理 */
        .ds { filter: blur(3.5px); display: inline-block; user-select: none; }

        .feature-content {
            flex: 1;
            min-width: 0;
        }

        .feature-content .label {
            font-size: 12px;
            font-weight: 700;
            color: #7c3aed;
            text-transform: uppercase;
            letter-spacing: .08em;
            margin-bottom: 10px;
        }

        .feature-content h3 {
            font-size: 30px;
            font-weight: 800;
            color: #1e293b;
            margin-bottom: 14px;
            line-height: 1.25;
        }

        .feature-content .desc {
            font-size: 16px;
            color: #475569;
            margin-bottom: 22px;
            line-height: 1.7;
        }

        .feature-list {
            list-style: none;
            margin-bottom: 28px;
        }

        .feature-list li {
            font-size: 15px;
            color: #334155;
            padding: 7px 0 7px 28px;
            position: relative;
            border-bottom: 1px solid #f1f5f9;
        }

        .feature-list li:last-child { border-bottom: none; }

        .feature-list li::before {
            content: '';
            position: absolute;
            left: 0;
            top: 14px;
            width: 16px;
            height: 16px;
            background: linear-gradient(135deg, #4f52c8, #7c3aed);
            border-radius: 50%;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23fff'%3E%3Cpath d='M13 4L6.5 11 3 7.5'/%3E%3C/svg%3E");
            background-size: 10px;
            background-repeat: no-repeat;
            background-position: center;
        }

        .api-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .api-tag {
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            border: 1px solid;
        }

        .api-tag.blue   { color: #1d4ed8; background: #eff6ff; border-color: #bfdbfe; }
        .api-tag.purple { color: #6d28d9; background: #f5f3ff; border-color: #ddd6fe; }
        .api-tag.green  { color: #166534; background: #f0fdf4; border-color: #bbf7d0; }
        .api-tag.orange { color: #9a3412; background: #fff7ed; border-color: #fed7aa; }
        .api-tag.gray   { color: #475569; background: #f8fafc; border-color: #e2e8f0; }

        /* ── CTA section ── */
        .cta-section {
            background: linear-gradient(135deg, #3730a3 0%, #7c3aed 100%);
            padding: 72px 0;
            text-align: center;
            color: #fff;
        }

        .cta-section h2 { font-size: 32px; font-weight: 800; margin-bottom: 14px; }
        .cta-section p  { font-size: 17px; opacity: .85; margin-bottom: 32px; }

        .btn-cta-white {
            display: inline-block;
            background: #fff;
            color: #4f52c8;
            font-weight: 700;
            font-size: 15px;
            padding: 13px 32px;
            border-radius: 10px;
            text-decoration: none;
            transition: box-shadow .2s;
        }

        .btn-cta-white:hover { box-shadow: 0 4px 24px rgba(0,0,0,.2); }

        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            justify-content: center;
        }

        .btn-cta-outline {
            display: inline-block;
            background: transparent;
            color: #fff;
            font-weight: 700;
            font-size: 15px;
            padding: 12px 32px;
            border-radius: 10px;
            border: 2px solid rgba(255,255,255,.75);
            text-decoration: none;
            transition: background .2s;
        }

        .btn-cta-outline:hover { background: rgba(255,255,255,.12); }

        /* ── Footer ── */
        footer {
            background: #1e293b;
            color: #94a3b8;
            padding: 56px 0 36px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-grid h4 {
            font-size: 15px;
            font-weight: 700;
            color: #f1f5f9;
            margin-bottom: 16px;
        }

        .footer-grid p { font-size: 14px; line-height: 1.7; }

        .footer-grid ul { list-style: none; }

        .footer-grid ul li { margin-bottom: 9px; font-size: 14px; }

        .footer-grid ul li a {
            color: #94a3b8;
            text-decoration: none;
            transition: color .2s;
        }

        .footer-grid ul li a:hover { color: #e2e8f0; }

        .footer-bottom {
            text-align: center;
            padding-top: 24px;
            border-top: 1px solid #334155;
            font-size: 13px;
        }

        .footer-bottom a { color: #94a3b8; text-decoration: none; margin: 0 8px; }
        .footer-bottom a:hover { color: #e2e8f0; }

        /* ── Responsive ── */
        @media (max-width: 900px) {
            .nav-links { display: none; }
            .feature-detail,
            .feature-detail.feature-detail--reverse { flex-direction: column; gap: 32px; }
            .hero h1 { font-size: 30px; }
            .feature-content h3 { font-size: 24px; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .mock-kpi-row { grid-template-columns: repeat(2, 1fr); }
        }

        @media (max-width: 560px) {
            .footer-grid { grid-template-columns: 1fr; }
        }