:root {
            --accent: #6f66d3;
            --accent-glow: rgba(111, 102, 211, 0.35);
            --accent-light: #8e86eb;
            --bg-dark: #0b0c16;
            --bg-card: #131525;
            --bg-hover: #1c1f36;
            --surface: #17192b;
            --border: rgba(111, 102, 211, 0.22);
            --border-highlight: rgba(142, 134, 235, 0.5);
            --text-main: #f0f2fe;
            --text-muted: #9fa5c4;
            --text-sub: #787f9d;
            --radius: 8px;
            --radius-lg: 12px;
            --shadow: 0 16px 36px rgba(0, 0, 0, 0.45);
            --transition: all 0.35s ease;
        }

        * {
            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(--bg-dark);
            color: var(--text-main);
            line-height: 1.7;
            overflow-x: hidden;
            word-break: break-word;
            overflow-wrap: break-word;
        }

        /* 顶级容器 */
        .sheath {
            width: 100%;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            background: radial-gradient(circle at 80% 10%, rgba(111, 102, 211, 0.15) 0%, transparent 50%),
                        radial-gradient(circle at 10% 60%, rgba(55, 48, 120, 0.2) 0%, transparent 45%);
        }

        /* 顶部导航 */
        .zenith {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 12, 22, 0.88);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

        .harbor {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0.85rem 1.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
        }

        .emblem {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        .emblem img {
            height: 38px;
            width: auto;
            display: block;
        }

        .strand {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1.5rem;
        }

        .harbor-nexus {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.4rem 0.8rem;
            border-radius: var(--radius);
            transition: var(--transition);
        }

        .harbor-nexus:hover,
        .harbor-nexus.active {
            color: #ffffff;
            background: rgba(111, 102, 211, 0.18);
            border: 1px solid rgba(111, 102, 211, 0.3);
        }

        .trace {
            display: flex;
            align-items: center;
        }

        .latch {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
            color: #ffffff;
            text-decoration: none;
            padding: 0.65rem 1.4rem;
            font-size: 0.92rem;
            font-weight: 600;
            border-radius: var(--radius);
            border: none;
            box-shadow: 0 4px 16px var(--accent-glow);
            transition: var(--transition);
            cursor: pointer;
        }

        .latch:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(111, 102, 211, 0.5);
            background: linear-gradient(135deg, #7c73df 0%, #9a93f0 100%);
        }

        .spark {
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-main);
            border: 1px solid var(--border);
            padding: 0.65rem 1.4rem;
            border-radius: var(--radius);
            text-decoration: none;
            font-size: 0.92rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            transition: var(--transition);
        }

        .spark:hover {
            background: rgba(111, 102, 211, 0.25);
            border-color: var(--accent);
            color: #ffffff;
        }

        /* 主主体区 */
        .sanctum {
            flex: 1;
            width: 100%;
        }

        /* 首屏 Hero 区：Reverse Split 结构蓝图实现 */
        .citadel {
            width: 100%;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            background: linear-gradient(180deg, rgba(19, 21, 37, 0.8) 0%, rgba(11, 12, 22, 1) 100%);
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
            padding-bottom: 2rem;
        }

        /* 画面在左占 55-65% 宽度，贴近视口左边缘 */
        .aspect-sheath {
            flex: 0 0 58%;
            max-width: 58%;
            min-width: 0;
            position: relative;
            padding: 0;
        }

        .aspect-sheath img {
            width: 100%;
            height: auto;
            display: block;
            border-top-right-radius: var(--radius-lg);
            border-bottom-right-radius: var(--radius-lg);
            box-shadow: 10px 0 40px rgba(0, 0, 0, 0.6);
            border-right: 1px solid var(--border-highlight);
            object-fit: cover;
        }

        /* 文字在右侧 较窄并垂直居中 */
        .crest {
            flex: 0 0 42%;
            max-width: 42%;
            min-width: 0;
            padding: 3rem 4rem 3rem 2.5rem;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .ribbon {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(111, 102, 211, 0.15);
            border: 1px solid var(--border);
            color: var(--accent-light);
            padding: 0.3rem 0.9rem;
            border-radius: 20px;
            font-size: 0.82rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            width: fit-content;
            margin-bottom: 1.25rem;
        }

        .vertex {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.25;
            color: #ffffff;
            margin-bottom: 1rem;
            background: linear-gradient(135deg, #ffffff 0%, #cbd2f8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .script {
            color: var(--text-muted);
            font-size: 1.05rem;
            line-height: 1.7;
            margin-bottom: 1.8rem;
        }

        .cluster-latch {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            margin-bottom: 2rem;
        }

        .cluster-metrics {
            display: flex;
            flex-direction: column;
            gap: 0.85rem;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 1.5rem;
        }

        .node-metric {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            color: var(--text-main);
            font-size: 0.92rem;
        }

        .glyph {
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            fill: var(--accent-light);
        }

        /* 证明型区块：零知识与本地加密 (<article>) */
        .haven {
            max-width: 1280px;
            margin: 5rem auto;
            padding: 0 1.5rem;
        }

        .cocoon-head {
            text-align: center;
            max-width: 820px;
            margin: 0 auto 3.5rem auto;
        }

        .vertex-sub {
            font-size: 1.85rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 0.85rem;
        }

        .cocoon-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
            align-items: center;
        }

        .capsule {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 2.2rem;
            box-shadow: var(--shadow);
            transition: var(--transition);
        }

        .capsule:hover {
            transform: translateY(-4px);
            border-color: var(--border-highlight);
            background: var(--bg-hover);
        }

        .capsule-aspect {
            width: 100%;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border);
            margin-bottom: 1.5rem;
        }

        .capsule-aspect img {
            width: 100%;
            height: auto;
            display: block;
        }

        .glyph-seal {
            width: 44px;
            height: 44px;
            border-radius: var(--radius);
            background: rgba(111, 102, 211, 0.15);
            border: 1px solid rgba(111, 102, 211, 0.3);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.25rem;
        }

        .glyph-seal svg {
            width: 24px;
            height: 24px;
            fill: var(--accent-light);
        }

        /* 步骤矩阵区块：软硬件协同防护 (<aside>) */
        .canopy {
            background: var(--surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 5rem 1.5rem;
        }

        .cocoon-canopy {
            max-width: 1280px;
            margin: 0 auto;
        }

        .split-canopy {
            display: flex;
            flex-wrap: wrap;
            gap: 3rem;
            align-items: center;
        }

        .pocket-script {
            flex: 1 1 480px;
            min-width: 0;
        }

        .pocket-media {
            flex: 1 1 500px;
            min-width: 0;
        }

        .pocket-media img {
            width: 100%;
            height: auto;
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-highlight);
            box-shadow: var(--shadow);
        }

        .matrix-strand {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            margin-top: 2rem;
        }

        .matrix-node {
            display: flex;
            gap: 1.2rem;
            background: var(--bg-card);
            padding: 1.25rem;
            border-radius: var(--radius);
            border: 1px solid var(--border);
        }

        .matrix-num {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--accent);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        /* 扩展生态矩阵区块 (<div>) */
        .vault {
            max-width: 1280px;
            margin: 5rem auto;
            padding: 0 1.5rem;
        }

        .vault-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
            margin-top: 3rem;
        }

        .path-haven {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 1.8rem;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: var(--transition);
            text-decoration: none;
            color: inherit;
        }

        .path-haven:hover {
            transform: translateY(-5px);
            border-color: var(--accent);
            box-shadow: 0 12px 28px rgba(111, 102, 211, 0.25);
        }

        .path-top {
            margin-bottom: 1.5rem;
        }

        .path-vertex {
            font-size: 1.25rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 0.6rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .nexus-pulse {
            color: var(--accent-light);
            font-weight: 600;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 0.35rem;
        }

        /* 深度文字解析区 */
        .deep-article {
            background: rgba(19, 21, 37, 0.6);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            margin-top: 4rem;
        }

        .deep-article h3 {
            font-size: 1.35rem;
            color: #ffffff;
            margin-bottom: 1rem;
        }

        .deep-article p {
            color: var(--text-muted);
            margin-bottom: 1.2rem;
            font-size: 0.98rem;
        }

        /* FAQ折叠框 (details/summary) */
        .faq-sheath {
            margin-top: 3.5rem;
        }

        .faq-node {
            background: var(--bg-card);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            margin-bottom: 1rem;
            overflow: hidden;
        }

        .faq-summary {
            padding: 1.2rem 1.5rem;
            font-weight: 600;
            color: #ffffff;
            cursor: pointer;
            outline: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            list-style: none;
        }

        .faq-summary::-webkit-details-marker {
            display: none;
        }

        .faq-summary::after {
            content: '+';
            font-size: 1.4rem;
            color: var(--accent-light);
            transition: transform 0.2s ease;
        }

        details[open] .faq-summary::after {
            content: '−';
        }

        .faq-sheath {
            padding: 0 1.5rem 1.2rem 1.5rem;
            color: var(--text-muted);
            font-size: 0.95rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 1rem;
        }

        /* 页脚区域 (<section> 包裹 <footer>) */
        .nadir {
            background: #07080f;
            border-top: 1px solid var(--border);
            padding: 4rem 1.5rem 2rem 1.5rem;
            margin-top: 4rem;
        }

        .anchor {
            max-width: 1280px;
            margin: 0 auto;
        }

        .bedrock {
            display: flex;
            flex-wrap: wrap;
            gap: 3rem;
            justify-content: space-between;
            margin-bottom: 3rem;
        }

        .stratum-brand {
            flex: 1 1 300px;
        }

        .stratum-brand h4 {
            font-size: 1.5rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 1rem;
            letter-spacing: 0.5px;
        }

        .stratum-col {
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

        .stratum-col h5 {
            color: #ffffff;
            font-size: 1rem;
            margin-bottom: 0.5rem;
        }

        .stratum-col a {
            color: var(--text-sub);
            text-decoration: none;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .stratum-col a:hover {
            color: var(--accent-light);
        }

        .copyright-ribbon {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 1.8rem;
            text-align: center;
            color: var(--text-sub);
            font-size: 0.88rem;
        }

        /* 响应式调整 */
        @media (max-width: 992px) {
            .citadel {
                flex-direction: column;
            }
            .aspect-sheath {
                flex: 0 0 100%;
                max-width: 100%;
            }
            .aspect-sheath img {
                border-radius: 0;
                border-right: none;
            }
            .crest {
                flex: 0 0 100%;
                max-width: 100%;
                padding: 2.5rem 1.5rem;
            }
        }

        @media (max-width: 768px) {
            .vertex {
                font-size: 1.75rem;
            }
            .harbor {
                flex-direction: column;
                gap: 1rem;
            }
            .strand {
                width: 100%;
                justify-content: center;
            }
            .split-canopy {
                flex-direction: column;
            }
        }

.harbor-zenith{
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(11, 12, 22, 0.88);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(111, 102, 211, 0.22);
        }

.harbor-zenith .harbor-harbor{
            max-width: 1320px;
            margin: 0 auto;
            padding: 0.85rem 1.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
        }

.harbor-zenith .harbor-emblem{
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

.harbor-zenith .harbor-emblem img{
            height: 38px;
            width: auto;
            display: block;
        }

.harbor-zenith .harbor-strand{
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 1.5rem;
        }

.harbor-zenith .harbor-harbor-nexus{
            color: #9fa5c4;
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.4rem 0.8rem;
            border-radius: 8px;
            transition: all 0.35s ease;
        }

.harbor-zenith .harbor-harbor-nexus:hover, .harbor-zenith .harbor-harbor-nexus.active{
            color: #ffffff;
            background: rgba(111, 102, 211, 0.18);
            border: 1px solid rgba(111, 102, 211, 0.3);
        }

.harbor-zenith .harbor-trace{
            display: flex;
            align-items: center;
        }

.harbor-zenith .harbor-latch{
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            background: linear-gradient(135deg, #6f66d3 0%, #8e86eb 100%);
            color: #ffffff;
            text-decoration: none;
            padding: 0.65rem 1.4rem;
            font-size: 0.92rem;
            font-weight: 600;
            border-radius: 8px;
            border: none;
            box-shadow: 0 4px 16px rgba(111, 102, 211, 0.35);
            transition: all 0.35s ease;
            cursor: pointer;
        }

.harbor-zenith .harbor-latch:hover{
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(111, 102, 211, 0.5);
            background: linear-gradient(135deg, #7c73df 0%, #9a93f0 100%);
        }

@media (max-width: 768px){.harbor-zenith .harbor-harbor{
                flex-direction: column;
                gap: 1rem;
            }

.harbor-zenith .harbor-strand{
                width: 100%;
                justify-content: center;
            }}

.harbor-zenith {
    background: rgb(11, 12, 22);
    background-image: none;
}

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

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

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

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

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

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

.anchor-anchor .anchor-script{
            color: #9fa5c4;
            font-size: 1.05rem;
            line-height: 1.7;
            margin-bottom: 1.8rem;
        }

.anchor-anchor{
            max-width: 1280px;
            margin: 0 auto;
        }

.anchor-anchor .anchor-bedrock{
            display: flex;
            flex-wrap: wrap;
            gap: 3rem;
            justify-content: space-between;
            margin-bottom: 3rem;
        }

.anchor-anchor .anchor-stratum-brand{
            flex: 1 1 300px;
        }

.anchor-anchor .anchor-stratum-brand h4{
            font-size: 1.5rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 1rem;
            letter-spacing: 0.5px;
        }

.anchor-anchor .anchor-stratum-col{
            display: flex;
            flex-direction: column;
            gap: 0.6rem;
        }

.anchor-anchor .anchor-stratum-col h5{
            color: #ffffff;
            font-size: 1rem;
            margin-bottom: 0.5rem;
        }

.anchor-anchor .anchor-stratum-col a{
            color: #787f9d;
            text-decoration: none;
            font-size: 0.9rem;
            transition: all 0.35s ease;
        }

.anchor-anchor .anchor-stratum-col a:hover{
            color: #8e86eb;
        }

.anchor-anchor .anchor-copyright-ribbon{
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 1.8rem;
            text-align: center;
            color: #787f9d;
            font-size: 0.88rem;
        }