:root {
            --primary: #a563e3;
            --accent: #7c3aed;
            --background: #fdfbff;
            --surface: #ffffff;
            --radius: 14px;
            --shadow: 0 10px 30px -10px rgba(165, 99, 227, 0.15), 0 4px 12px -4px rgba(0, 0, 0, 0.05);
            --shadow-high: 0 20px 40px -15px rgba(165, 99, 227, 0.25);
            --text: #1d1d1f;
            --text-dim: #6e6e73;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--background);
            color: var(--text);
            line-height: 1.7;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* --- 导航栏复用与统一 --- */
        .stem {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(253, 251, 255, 0.85);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(165, 99, 227, 0.1);
        }

        .ribon {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 40px;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .ink {
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .ink img {
            height: 32px;
            width: auto;
        }

        .pulp {
            display: flex;
            gap: 32px;
            min-width: 0;
        }

        .lens {
            text-decoration: none;
            color: var(--text);
            font-weight: 500;
            font-size: 15px;
            transition: color 0.25s ease;
            position: relative;
        }

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

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

        .lens.active::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }

        /* --- 主内容布局 --- */
        .bound {
            width: 100%;
            padding-top: 72px;
        }

        .vault {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 40px;
        }

        /* --- Section 1: 下载核心 (prism) --- */
        .prism {
            padding: 100px 0 60px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 40px;
            align-items: center;
        }

        .focal-slot {
            min-width: 0;
        }

        .tier-focal {
            font-size: clamp(32px, 5vw, 52px);
            line-height: 1.15;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 24px;
            color: var(--text);
        }

        .vein-focal {
            font-size: 18px;
            color: var(--text-dim);
            margin-bottom: 32px;
            max-width: 500px;
            word-break: break-word;
        }

        .spur-focal {
            border-radius: var(--radius);
            box-shadow: var(--shadow-high);
            overflow: hidden;
            min-width: 0;
        }

        .spur-focal img {
            width: 100%;
            height: auto;
            display: block;
        }

        /* --- 平台矩阵布局 (nexus) --- */
        .nexus-mesh {
            padding: 60px 0;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .folio-halo {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 32px;
            border: 1px solid rgba(165, 99, 227, 0.1);
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            min-width: 0;
        }

        .folio-halo:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }

        .sigil-mesh {
            width: 48px;
            height: 48px;
            margin-bottom: 24px;
            color: var(--primary);
        }

        .tier-slab {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .vein-slab {
            font-size: 14px;
            color: var(--text-dim);
            margin-bottom: 24px;
        }

        .snap-pulse {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 28px;
            background: var(--primary);
            color: white;
            text-decoration: none;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.25s ease;
            box-shadow: 0 8px 20px -6px rgba(165, 99, 227, 0.4);
            cursor: pointer;
            border: none;
        }

        .snap-pulse:hover {
            background: var(--accent);
            transform: scale(1.02);
        }

        .snap-fuse {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 14px 28px;
            background: transparent;
            color: var(--primary);
            text-decoration: none;
            border-radius: 50px;
            font-weight: 600;
            transition: all 0.25s ease;
            border: 1.5px solid var(--primary);
            cursor: pointer;
        }

        .snap-fuse:hover {
            background: rgba(165, 99, 227, 0.05);
        }

        /* --- Section 2: 移动端 (vista) --- */
        .vista-orbit {
            background: linear-gradient(135deg, #f3e8ff 0%, #fdfbff 100%);
            border-radius: 24px;
            padding: 60px;
            margin: 60px 0;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .vane-mesh {
            flex: 1;
            min-width: 300px;
        }

        .tier-vane {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 20px;
        }

        .slot-halo {
            display: flex;
            gap: 20px;
            margin-top: 32px;
            flex-wrap: wrap;
        }

        .folio-qr {
            background: white;
            padding: 16px;
            border-radius: 12px;
            box-shadow: var(--shadow);
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 12px;
        }

        .sigil-qr {
            width: 140px;
            height: 140px;
            background: #f9f9fb;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 1px dashed var(--primary);
        }

        /* --- Section 3: 系统要求 (nexus) --- */
        .nexus-vault {
            padding: 80px 0;
        }

        .tier-rim {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 40px;
            text-align: center;
        }

        .mesh-table {
            width: 100%;
            border-collapse: collapse;
            background: var(--surface);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .mesh-table th, .mesh-table td {
            padding: 20px 24px;
            text-align: left;
            border-bottom: 1px solid rgba(165, 99, 227, 0.1);
        }

        .mesh-table th {
            background: rgba(165, 99, 227, 0.05);
            font-weight: 600;
            color: var(--primary);
        }

        /* --- 页脚 (core) --- */
        .core-base {
            background: #f9f9fb;
            padding: 80px 40px 40px;
            border-top: 1px solid rgba(165, 99, 227, 0.1);
        }

        .datum-mesh {
            max-width: 1300px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 40px;
        }

        .tier-datum {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 24px;
        }

        .lens-datum {
            display: block;
            text-decoration: none;
            color: var(--text-dim);
            font-size: 14px;
            margin-bottom: 12px;
            transition: color 0.25s ease;
        }

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

        .root-rim {
            max-width: 1300px;
            margin: 40px auto 0;
            padding-top: 40px;
            border-top: 1px solid rgba(0, 0, 0, 0.05);
            text-align: center;
            color: var(--text-dim);
            font-size: 13px;
        }

        /* --- 响应式断点 --- */
        @media (max-width: 1024px) {
            .prism { grid-template-columns: 1fr; text-align: center; }
            .vein-focal { margin: 0 auto 32px; }
            .vista-orbit { padding: 40px; }
        }

        @media (max-width: 768px) {
            .ribon { padding: 0 20px; }
            .pulp { display: none; } /* 移动端可隐藏或改为菜单 */
            .vault { padding: 0 20px; }
            .tier-focal { font-size: 32px; }
            .vista-orbit { flex-direction: column; text-align: center; }
            .slot-halo { justify-content: center; }
            .mesh-table { display: block; overflow-x: auto; }
        }

.ribon-stem {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.7;
    word-break: keep-all;
    color: var(--ink-dark);
}
.ribon-stem,
.ribon-stem *,
.ribon-stem *::before,
.ribon-stem *::after {
    box-sizing: border-box;
}

.ribon-stem [role="navigation"],
.ribon-stem div,
.ribon-stem section,
.ribon-stem article,
.ribon-stem aside,
.ribon-stem p,
.ribon-stem h1,
.ribon-stem h2,
.ribon-stem h3,
.ribon-stem h4,
.ribon-stem h5,
.ribon-stem h6,
.ribon-stem a {
    margin: 0;
    padding: 0;
    font: inherit;
    color: inherit;
    letter-spacing: inherit;
    line-height: inherit;
}

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

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

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

.ribon-stem a.ribon-lens {
    --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;
}

.ribon-stem a.ribon-lens,
.ribon-stem a.ribon-lens:hover,
.ribon-stem a.ribon-lens:focus,
.ribon-stem a.ribon-lens:active,
.ribon-stem a.ribon-lens.active,
.ribon-stem a.ribon-lens[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);
}

.ribon-stem{
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(165, 99, 227, 0.1);
        }

.ribon-stem .ribon-ribon{
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 40px;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

.ribon-stem .ribon-ink{
            height: 32px;
            min-width: 0;
        }

.ribon-stem .ribon-ink img{
            height: 100%;
            display: block;
        }

.ribon-stem .ribon-pulp{
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
        }

.ribon-stem .ribon-lens{
            text-decoration: none;
            color: #424245;
            font-size: 15px;
            font-weight: 500;
            transition: color 0.25s ease;
            position: relative;
        }

.ribon-stem .ribon-lens:hover{
            color: #a563e3;
        }

.ribon-stem .ribon-lens.active{
            color: #a563e3;
        }

.ribon-stem .ribon-lens.active::after{
            content: '';
            position: absolute;
            bottom: -24px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #a563e3;
        }

@media (max-width: 768px){.ribon-stem .ribon-ribon{ height: auto; padding: 20px; }

.ribon-stem .ribon-pulp{ gap: 16px; margin-top: 16px; width: 100%; justify-content: center; }}

.ribon-stem {
    background: rgb(255, 255, 255);
    background-image: none;
}

.datum-vault {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.7;
    word-break: keep-all;
    color: var(--ink-dark);
}
.datum-vault,
.datum-vault *,
.datum-vault *::before,
.datum-vault *::after {
    box-sizing: border-box;
}

.datum-vault [role="navigation"],
.datum-vault div,
.datum-vault section,
.datum-vault article,
.datum-vault aside,
.datum-vault p,
.datum-vault h1,
.datum-vault h2,
.datum-vault h3,
.datum-vault h4,
.datum-vault h5,
.datum-vault h6,
.datum-vault a {
    margin: 0;
    padding: 0;
    font: inherit;
    color: inherit;
    letter-spacing: inherit;
    line-height: inherit;
}

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

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

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

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

.datum-vault{
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }

.datum-vault .datum-stem{
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(165, 99, 227, 0.1);
        }

.datum-vault .datum-ribon{
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 40px;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

.datum-vault .datum-ink{
            height: 32px;
            min-width: 0;
        }

.datum-vault .datum-ink img{
            height: 100%;
            display: block;
        }

.datum-vault .datum-pulp{
            display: flex;
            align-items: center;
            gap: 32px;
            flex-wrap: wrap;
        }

.datum-vault .datum-lens{
            text-decoration: none;
            color: #424245;
            font-size: 15px;
            font-weight: 500;
            transition: color 0.25s ease;
            position: relative;
        }

.datum-vault .datum-lens:hover{
            color: #a563e3;
        }

.datum-vault .datum-lens.active{
            color: #a563e3;
        }

.datum-vault .datum-lens.active::after{
            content: '';
            position: absolute;
            bottom: -24px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #a563e3;
        }

.datum-vault .datum-prism{
            padding: 100px 40px;
            max-width: 1300px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            min-width: 0;
        }

.datum-vault .datum-prism-nexus{
            min-width: 0;
        }

.datum-vault .datum-tier-focal{
            font-size: clamp(32px, 5vw, 56px);
            line-height: 1.15;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 24px;
            color: #1d1d1f;
        }

.datum-vault .datum-tier-focal span{
            background: linear-gradient(135deg, #a563e3, #7c3aed);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

.datum-vault .datum-vein-focal{
            font-size: 20px;
            color: #424245;
            margin-bottom: 40px;
            max-width: 540px;
            word-break: break-word;
        }

.datum-vault .datum-slot-pulse{
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
            min-width: 0;
        }

.datum-vault .datum-snap-fuse{
            display: inline-flex;
            align-items: center;
            padding: 16px 36px;
            background: #a563e3;
            color: white;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            transition: transform 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
            box-shadow: 0 10px 20px -5px rgba(165, 99, 227, 0.4);
        }

.datum-vault .datum-snap-fuse:hover{
            background: #7c3aed;
            transform: translateY(-2px);
            box-shadow: 0 15px 30px -8px rgba(165, 99, 227, 0.5);
        }

.datum-vault .datum-prism-bound{
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            grid-template-rows: repeat(12, 1fr);
            height: 580px;
            gap: 16px;
            min-width: 0;
        }

.datum-vault .datum-spur-focal{
            grid-column: 1 / 9;
            grid-row: 1 / 10;
            border-radius: 14px;
            overflow: hidden;
            box-shadow: 0 20px 40px -15px rgba(165, 99, 227, 0.25);
            z-index: 2;
        }

.datum-vault .datum-spur-focal img{
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

.datum-vault .datum-vane-halo{
            background: #ffffff;
            border-radius: 14px;
            padding: 20px;
            box-shadow: 0 10px 30px -10px rgba(165, 99, 227, 0.15), 0 4px 12px -4px rgba(0, 0, 0, 0.05);
            border: 1px solid rgba(165, 99, 227, 0.1);
            display: flex;
            flex-direction: column;
            justify-content: center;
            transition: transform 0.25s ease;
        }

.datum-vault .datum-vane-halo:hover{
            transform: scale(1.02);
        }

.datum-vault .datum-vane-halo.v1{ grid-column: 9 / 13; grid-row: 2 / 7; z-index: 3; }

.datum-vault .datum-vane-halo.v2{ grid-column: 7 / 12; grid-row: 8 / 13; z-index: 4; }

.datum-vault .datum-vane-halo.v3{ grid-column: 2 / 6; grid-row: 9 / 13; z-index: 5; background: #faf5ff; }

.datum-vault .datum-sigil-mesh{
            width: 40px;
            height: 40px;
            margin-bottom: 12px;
            color: #a563e3;
        }

.datum-vault .datum-vista-nexus{
            padding: 120px 40px;
            background: white;
        }

.datum-vault .datum-bound-focal{
            max-width: 1300px;
            margin: 0 auto;
        }

.datum-vault .datum-stem-focal{
            text-align: center;
            margin-bottom: 80px;
        }

.datum-vault .datum-tier-slab{
            font-size: 40px;
            font-weight: 700;
            margin-bottom: 20px;
        }

.datum-vault .datum-vein-slab{
            font-size: 18px;
            color: #424245;
            max-width: 800px;
            margin: 0 auto;
        }

.datum-vault .datum-slot-folio{
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            min-width: 0;
        }

.datum-vault .datum-folio-halo{
            background: #fdfbff;
            padding: 40px;
            border-radius: 20px;
            border: 1px solid transparent;
            transition: all 0.25s ease;
            position: relative;
            overflow: hidden;
        }

.datum-vault .datum-folio-halo:hover{
            border-color: #a563e3;
            background: white;
            box-shadow: 0 10px 30px -10px rgba(165, 99, 227, 0.15), 0 4px 12px -4px rgba(0, 0, 0, 0.05);
            transform: translateY(-8px);
        }

.datum-vault .datum-folio-halo::before{
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: #a563e3;
            opacity: 0;
            transition: opacity 0.25s ease;
        }

.datum-vault .datum-folio-halo:hover::before{
            opacity: 1;
        }

.datum-vault .datum-tier-halo{
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 16px;
        }

.datum-vault .datum-vein-halo-inner{
            color: #424245;
            font-size: 16px;
            line-height: 1.6;
        }

.datum-vault .datum-capability-vault{
            padding: 120px 40px;
            background: linear-gradient(135deg, #f8f0ff 0%, #ffffff 100%);
            position: relative;
            overflow: hidden;
        }

.datum-vault .datum-bound-nexus{
            max-width: 1300px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            gap: 80px;
            flex-wrap: wrap;
        }

.datum-vault .datum-prism-vane{
            flex: 1;
            min-width: 320px;
        }

.datum-vault .datum-mesh-sigil{
            flex: 1;
            min-width: 320px;
            background: white;
            padding: 30px;
            border-radius: 24px;
            box-shadow: 0 20px 40px -15px rgba(165, 99, 227, 0.25);
            border: 1px solid rgba(165, 99, 227, 0.1);
        }

.datum-vault .datum-halo-ai{
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 24px;
            padding: 16px;
            background: #fdfbff;
            border-radius: 12px;
            border-left: 4px solid #a563e3;
        }

.datum-vault .datum-nexus-vista{
            padding: 120px 40px;
            text-align: center;
            background: white;
        }

.datum-vault .datum-orbit-slot{
            display: flex;
            justify-content: center;
            gap: 60px;
            margin-top: 60px;
            flex-wrap: wrap;
        }

.datum-vault .datum-vane-halo-device{
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 16px;
        }

.datum-vault .datum-sigil-large{
            width: 64px;
            height: 64px;
            color: #a563e3;
            background: #faf5ff;
            padding: 16px;
            border-radius: 16px;
        }

.datum-vault .datum-core{
            background: #1d1d1f;
            color: #f5f5f7;
            padding: 100px 40px 40px;
        }

.datum-vault .datum-datum-nexus{
            max-width: 1300px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 60px;
            margin-bottom: 80px;
        }

.datum-vault .datum-tier-base{
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 24px;
            color: white;
        }

.datum-vault .datum-orbit-base{
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

.datum-vault .datum-lens-base{
            color: #86868b;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.25s ease;
        }

.datum-vault .datum-lens-base:hover{
            color: #a563e3;
        }

.datum-vault .datum-root-nexus{
            max-width: 1300px;
            margin: 0 auto;
            padding-top: 40px;
            border-top: 1px solid #333;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            color: #86868b;
            font-size: 12px;
        }

.datum-vault .datum-vein-root{
            font-size: 14px;
            color: #f5f5f7;
            font-weight: 700;
        }

@media (max-width: 1024px){.datum-vault .datum-prism{ grid-template-columns: 1fr; text-align: center; }

.datum-vault .datum-prism-bound{ height: 400px; margin-top: 40px; }

.datum-vault .datum-vein-focal{ margin: 0 auto 40px; }

.datum-vault .datum-slot-pulse{ justify-content: center; }}

@media (max-width: 768px){.datum-vault .datum-ribon{ height: auto; padding: 20px; }

.datum-vault .datum-pulp{ gap: 16px; margin-top: 16px; width: 100%; justify-content: center; }

.datum-vault .datum-prism{ padding: 60px 20px; }

.datum-vault .datum-prism-bound{ display: none; }

.datum-vault .datum-vista-nexus, .datum-vault .datum-capability-vault{ padding: 80px 20px; }

.datum-vault .datum-tier-slab{ font-size: 32px; }}