:root {
            --primary: #504df9;
            --primary-soft: rgba(80, 77, 249, 0.08);
            --accent: #00d2ff;
            --bg: #ffffff;
            --verba-color: #4a4a4a;
            --titulus-color: #1a1a1a;
            --arca-shadow: 0 20px 40px rgba(0,0,0,0.06);
            --radius: 16px;
            --radius-pill: 50px;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            line-height: 1.8;
            color: var(--verba-color);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        /* 导航栏样式复用 */
        .caput {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            z-index: 1000;
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

        .pathway {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.8rem 2rem;
            flex-wrap: wrap;
        }

        .glyph {
            height: 32px;
            display: flex;
            align-items: center;
        }

        .glyph img {
            height: 100%;
            width: auto;
        }

        .seriem {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .nexo {
            text-decoration: none;
            color: #333;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.35s ease;
            position: relative;
        }

        .nexo:hover {
            color: var(--primary);
        }

        .nexo.active {
            color: var(--primary);
        }

        .nexo.active::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        /* 主内容布局 */
        main {
            padding-top: 80px;
        }

        /* Hero 区块 - Article (intro) */
        .scena {
            min-height: 85vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #fdfdff 0%, #f4f7ff 100%);
            padding: 4rem 2rem;
            position: relative;
            overflow: hidden;
        }

        .spatium {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 4rem;
        }

        .focal {
            flex: 1;
            min-width: 320px;
        }

        .titulus-ambito {
            font-size: clamp(2.5rem, 5vw, 3.8rem);
            line-height: 1.15;
            color: var(--titulus-color);
            font-weight: 800;
            margin-bottom: 1.5rem;
            letter-spacing: -1.5px;
            word-break: keep-all;
        }

        .verba-lead {
            font-size: 1.25rem;
            color: #666;
            margin-bottom: 2.5rem;
            max-width: 540px;
            word-break: keep-all;
        }

        .vista {
            flex: 1;
            min-width: 320px;
            position: relative;
        }

        .imago-velum {
            border-radius: 24px;
            overflow: hidden;
            box-shadow: 0 30px 60px rgba(80, 77, 249, 0.15);
            border: 8px solid #fff;
            transform: perspective(1000px) rotateY(-5deg);
            transition: transform 0.5s ease;
        }

        .imago-velum:hover {
            transform: perspective(1000px) rotateY(0deg);
        }

        .imago-velum img {
            width: 100%;
            display: block;
            height: auto;
        }

        .axion-chorus {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .axion-impel {
            display: inline-flex;
            align-items: center;
            padding: 1rem 2.5rem;
            background: var(--primary);
            color: #fff;
            text-decoration: none;
            border-radius: var(--radius-pill);
            font-weight: 600;
            transition: all 0.35s ease;
            box-shadow: 0 10px 20px rgba(80, 77, 249, 0.3);
        }

        .axion-impel:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 25px rgba(80, 77, 249, 0.4);
        }

        /* 场景化应用 - Aside (capability) */
        .ambito-light {
            padding: 8rem 2rem;
            background: #fff;
        }

        .arca-titulus {
            text-align: center;
            margin-bottom: 5rem;
        }

        .titulus-sub {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--titulus-color);
            margin-bottom: 1rem;
        }

        .folio-chorus {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2.5rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .folio {
            padding: 3rem;
            background: #fff;
            border-radius: var(--radius);
            border: 1px solid rgba(0,0,0,0.04);
            transition: all 0.35s ease;
            position: relative;
            display: flex;
            flex-direction: column;
        }

        .folio:hover {
            transform: translateY(-10px);
            box-shadow: var(--arca-shadow);
            border-color: var(--primary-soft);
        }

        .signum-velum {
            width: 64px;
            height: 64px;
            background: var(--primary-soft);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 2rem;
            color: var(--primary);
        }

        .titulus-folio {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--titulus-color);
        }

        .verba-folio {
            font-size: 1rem;
            line-height: 1.7;
            color: #666;
        }

        /* 隐私安全 - Div (proof) */
        .ambito-dark {
            padding: 6rem 2rem;
            background: #f8f9ff;
        }

        .arca-proof {
            max-width: 1200px;
            margin: 0 auto;
            background: #fff;
            border-radius: 24px;
            padding: 4rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 3rem;
            box-shadow: 0 30px 60px rgba(0,0,0,0.03);
        }

        .arca-proof-verba {
            flex: 1;
            min-width: 300px;
        }

        .arca-proof-chorus {
            flex: 1;
            min-width: 300px;
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .unita-proof {
            display: flex;
            align-items: center;
            gap: 1.2rem;
            padding: 1.2rem;
            background: #fdfdff;
            border-radius: 12px;
            border: 1px solid rgba(80, 77, 249, 0.05);
        }

        .signum-small {
            width: 24px;
            height: 24px;
            color: #10b981;
        }

        .verba-proof {
            font-weight: 600;
            color: var(--titulus-color);
        }

        /* 页脚样式 */
        .cauda {
            background: #ffffff;
            padding: 5rem 2rem 2rem;
            border-top: 1px solid #f0f0f0;
        }

        .fundus {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 3rem;
            margin-bottom: 4rem;
        }

        .arca-brand {
            max-width: 300px;
        }

        .brand-name {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 1rem;
        }

        .seriem-cauda {
            display: flex;
            gap: 4rem;
            flex-wrap: wrap;
        }

        .chorus-cauda {
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }

        .titulus-cauda {
            font-weight: 700;
            font-size: 1rem;
            margin-bottom: 0.5rem;
            color: #1a1a1a;
        }

        .nexo-cauda {
            text-decoration: none;
            color: #666;
            font-size: 0.9rem;
            transition: color 0.3s;
        }

        .nexo-cauda:hover {
            color: var(--primary);
        }

        .finis {
            max-width: 1200px;
            margin: 0 auto;
            padding-top: 2rem;
            border-top: 1px solid #f0f0f0;
            text-align: center;
            color: #999;
            font-size: 0.85rem;
        }

        /* 响应式适配 */
        @media (max-width: 768px) {
            .seriem {
                display: none;
            }
            
            .titulus-ambito {
                font-size: 2.2rem;
            }
            
            .spatium {
                gap: 2rem;
            }
            
            .arca-proof {
                padding: 2rem;
            }

            .folio {
                padding: 2rem;
            }
        }

.vindex-caput {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.8;
    word-break: break-word;
    color: var(--verba-color);
}
.vindex-caput,
.vindex-caput *,
.vindex-caput *::before,
.vindex-caput *::after {
    box-sizing: border-box;
}

.vindex-caput nav,
.vindex-caput div,
.vindex-caput section,
.vindex-caput article,
.vindex-caput aside,
.vindex-caput p,
.vindex-caput h1,
.vindex-caput h2,
.vindex-caput h3,
.vindex-caput h4,
.vindex-caput h5,
.vindex-caput h6,
.vindex-caput a {
    margin: 0;
    padding: 0;
    font: inherit;
    color: inherit;
    letter-spacing: inherit;
    line-height: inherit;
}

.vindex-caput p,
.vindex-caput h1,
.vindex-caput h2,
.vindex-caput h3,
.vindex-caput h4,
.vindex-caput h5,
.vindex-caput h6 {
    text-decoration: none;
}

.vindex-caput img {
    display: block;
    max-width: 100%;
    height: auto;
    border: 0;
}

.vindex-caput {
    box-shadow: none;
    filter: none;
    text-shadow: none;
    background-image: none;
    border-top: none;
    border-left: none;
    border-right: none;
    outline: none;
}

.vindex-caput a.vindex-nexo {
    --aisite-shell-nav-padding: 0;
    --aisite-shell-nav-margin: 0;
    --aisite-shell-nav-line-height: normal;
    --aisite-shell-nav-display: inline;
    --aisite-shell-nav-height: auto;
    --aisite-shell-nav-min-height: auto;
}

.vindex-caput a.vindex-nexo,
.vindex-caput a.vindex-nexo:hover,
.vindex-caput a.vindex-nexo:focus,
.vindex-caput a.vindex-nexo:active,
.vindex-caput a.vindex-nexo.active,
.vindex-caput a.vindex-nexo[aria-current="page"] {
    background: transparent;
    border: none;
    border-bottom: none;
    box-shadow: none;
    outline: none;
    text-decoration: none;
    padding: var(--aisite-shell-nav-padding, 0);
    margin: var(--aisite-shell-nav-margin, 0);
    line-height: var(--aisite-shell-nav-line-height, normal);
    display: var(--aisite-shell-nav-display, inline);
    height: var(--aisite-shell-nav-height, auto);
    min-height: var(--aisite-shell-nav-min-height, auto);
}

.vindex-caput{
            position: sticky;
            top: 0;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            z-index: 1000;
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

.vindex-caput .vindex-pathway{
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 2rem;
            height: 70px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

.vindex-caput .vindex-glyph{
            height: 32px;
            min-width: 0;
        }

.vindex-caput .vindex-glyph img{
            height: 100%;
            display: block;
        }

.vindex-caput .vindex-seriem{
            display: flex;
            gap: 2rem;
            align-items: center;
            flex-wrap: wrap;
        }

.vindex-caput .vindex-nexo{
            text-decoration: none;
            color: #333333;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.35s ease;
            position: relative;
            min-width: 0;
        }

.vindex-caput .vindex-nexo:hover, .vindex-caput .vindex-nexo.active{
            color: #504df9;
        }

.vindex-caput .vindex-nexo.active::after{
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #504df9;
        }

@media (max-width: 768px){.vindex-caput .vindex-pathway{ height: auto; padding: 1rem; }

.vindex-caput .vindex-seriem{ width: 100%; justify-content: center; gap: 1rem; margin-top: 1rem; }}

.vindex-caput {
    background: rgb(255, 255, 255);
    background-image: none;
}

.fundus-finis {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.8;
    word-break: break-word;
    color: var(--verba-color);
}
.fundus-finis,
.fundus-finis *,
.fundus-finis *::before,
.fundus-finis *::after {
    box-sizing: border-box;
}

.fundus-finis nav,
.fundus-finis div,
.fundus-finis section,
.fundus-finis article,
.fundus-finis aside,
.fundus-finis p,
.fundus-finis h1,
.fundus-finis h2,
.fundus-finis h3,
.fundus-finis h4,
.fundus-finis h5,
.fundus-finis h6,
.fundus-finis a {
    margin: 0;
    padding: 0;
    font: inherit;
    color: inherit;
    letter-spacing: inherit;
    line-height: inherit;
}

.fundus-finis p,
.fundus-finis h1,
.fundus-finis h2,
.fundus-finis h3,
.fundus-finis h4,
.fundus-finis h5,
.fundus-finis h6 {
    text-decoration: none;
}

.fundus-finis img {
    display: block;
    max-width: 100%;
    height: auto;
    border: 0;
}

.fundus-finis {
    box-shadow: none;
    filter: none;
    text-shadow: none;
    background-image: none;
    border-top: none;
    border-left: none;
    border-right: none;
    outline: none;
}

.fundus-finis a,
.fundus-finis a:hover,
.fundus-finis a:focus,
.fundus-finis a:active {
    background: transparent;
    box-shadow: none;
    outline: none;
    text-decoration: none;
}

.fundus-finis{
            background: #1a1a1a;
            color: #ccc;
            padding: 6rem 2rem 2rem;
        }

.fundus-finis .fundus-finis-ambito{
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 4rem;
            padding-bottom: 4rem;
            border-bottom: 1px solid #333;
        }

.fundus-finis .fundus-finis-arca{
            flex: 1 1 200px;
            min-width: 0;
        }

.fundus-finis .fundus-finis-arca .fundus-titulus{
            color: white;
            font-size: 1.1rem;
            margin-bottom: 1.5rem;
        }

.fundus-finis .fundus-finis-seriem{
            list-style: none;
        }

.fundus-finis .fundus-finis-unita{
            margin-bottom: 0.8rem;
        }

.fundus-finis .fundus-finis-nexo{
            color: #999;
            text-decoration: none;
            transition: color 0.3s ease;
        }

.fundus-finis .fundus-finis-nexo:hover{
            color: white;
        }

.fundus-finis .fundus-cauda{
            max-width: 1400px;
            margin: 0 auto;
            padding-top: 2rem;
            text-align: center;
            font-size: 0.9rem;
            color: #666;
        }