:root {
            --c-bg: #fcfdfc;
            --c-surface: #ffffff;
            --c-surface-alt: #f1f3f4;
            --c-surface-dark: #1f2328;
            --c-ink-main: #202124;
            --c-ink-sub: #5f6368;
            --c-ink-light: #e8eaed;
            --c-accent-green: #73e163;
            --c-accent-blue: #1a73e8;
            --c-accent-blue-hover: #1557b0;
            --c-border: #dadce0;
            
            --r-base: 8px;
            --r-large: 12px;
            --s-float: 0 4px 12px rgba(32, 33, 36, 0.05);
            --s-deep: 0 8px 24px rgba(32, 33, 36, 0.1);
            --transition: all 0.15s 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(--c-bg);
            color: var(--c-ink-main);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        /* 强制文本规则 */
        .flag, .ink, .node {
            word-break: break-word;
            overflow-wrap: break-word;
        }
        
        .flag {
            word-break: keep-all;
        }

        /* 强制Flex/Grid规则 */
        .cluster, .stripe, .omni, .pin {
            display: flex;
            flex-wrap: wrap;
        }

        .cluster > *, .stripe > *, .omni > *, .pin > * {
            min-width: 0;
        }

        /* 全局排版 */
        .ink-1 {
            font-size: clamp(2.5rem, 5vw, 4rem);
            font-weight: 800;
            line-height: 1.1;
            letter-spacing: -0.02em;
            white-space: normal;
        }

        .ink-2 {
            font-size: clamp(2rem, 3vw, 2.5rem);
            font-weight: 700;
            line-height: 1.2;
            letter-spacing: -0.01em;
            white-space: normal;
            margin-bottom: 1.5rem;
        }

        .ink-3 {
            font-size: clamp(1.25rem, 2vw, 1.5rem);
            font-weight: 600;
            line-height: 1.4;
            white-space: normal;
            margin-bottom: 1rem;
        }

        .flag-lead {
            font-size: clamp(1.1rem, 1.5vw, 1.25rem);
            color: var(--c-ink-sub);
            margin-bottom: 2rem;
        }

        .flag-body {
            font-size: 1rem;
            color: var(--c-ink-sub);
            margin-bottom: 1.5rem;
        }

        /* 导航区域 (tail -> omni -> pin -> node) */
        .tail {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--c-border);
            padding: 1rem 5vw;
        }

        .omni {
            max-width: 1400px;
            margin: 0 auto;
            justify-content: space-between;
            align-items: center;
        }

        .dino {
            width: 140px;
            display: flex;
            align-items: center;
        }

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

        .pin {
            gap: 2rem;
            align-items: center;
        }

        .node {
            text-decoration: none;
            color: var(--c-ink-sub);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
            padding: 0.5rem 0;
            position: relative;
        }

        .node:hover {
            color: var(--c-ink-main);
        }

        .node.active {
            color: var(--c-accent-blue);
        }

        .node.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--c-accent-blue);
            border-radius: 2px;
        }

        /* 交互按钮 */
        .sync {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.8rem 2rem;
            background-color: var(--c-accent-blue);
            color: white;
            text-decoration: none;
            font-weight: 600;
            border-radius: 50px;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }

        .sync:hover {
            background-color: var(--c-accent-blue-hover);
            transform: translateY(-2px);
            box-shadow: var(--s-float);
        }

        .sync-alt {
            background-color: transparent;
            color: var(--c-accent-blue);
            border: 2px solid var(--c-border);
        }

        .sync-alt:hover {
            background-color: var(--c-surface-alt);
            border-color: var(--c-accent-blue);
            transform: translateY(-2px);
        }

        /* Hero区域 (portal - cinematic strip) */
        .portal {
            width: 100%;
            min-height: 45vh;
            background: linear-gradient(135deg, var(--c-surface-dark) 0%, #0d1117 100%);
            position: relative;
            overflow: hidden;
            display: flex;
            align-items: flex-end; /* Cinematic text at bottom edge */
            padding: 4rem 5vw;
        }

        .portal::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: radial-gradient(circle at 80% 20%, rgba(115, 225, 99, 0.15) 0%, transparent 50%),
                        radial-gradient(circle at 20% 80%, rgba(26, 115, 232, 0.15) 0%, transparent 50%);
            z-index: 1;
        }

        .portal-cluster {
            position: relative;
            z-index: 2;
            max-width: 1000px;
            width: 100%;
            margin: 0 auto;
        }

        .portal .ink-1 {
            color: var(--c-surface);
            margin-bottom: 1rem;
        }

        .portal .flag-lead {
            color: var(--c-ink-light);
            max-width: 800px;
        }

        .portal-actions {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            margin-top: 2rem;
        }

        /* 布局容器 */
        .sandbox, .cluster, .bounds {
            padding: 6vw 5vw;
            width: 100%;
        }

        .cluster {
            background-color: var(--c-surface-alt);
        }

        .bounds {
            background-color: var(--c-surface);
            border-top: 1px solid var(--c-border);
        }

        .cluster-inner {
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            gap: 4rem;
            align-items: center;
        }

        /* 图文区块分割 */
        .cluster-flag {
            flex: 1 1 400px;
        }

        .cluster-media {
            flex: 1 1 500px;
            position: relative;
        }

        .core {
            width: 100%;
            height: auto;
            border-radius: var(--r-large);
            box-shadow: var(--s-deep);
            display: block;
        }

        /* 特性数据/视觉装饰 */
        .data-pane {
            position: absolute;
            bottom: -2rem;
            left: -2rem;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            padding: 1.5rem;
            border-radius: var(--r-base);
            box-shadow: var(--s-float);
            border: 1px solid var(--c-border);
            display: flex;
            align-items: center;
            gap: 1rem;
            transform: translateY(0);
            transition: var(--transition);
        }

        .cluster-media:hover .data-pane {
            transform: translateY(-5px);
        }

        .glyph {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--c-surface-alt);
        }

        /* 网格卡片 (Pathways) */
        .crest {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            max-width: 1400px;
            margin: 0 auto;
        }

        .shard {
            background: var(--c-surface);
            border: 1px solid var(--c-border);
            border-radius: var(--r-large);
            padding: 2.5rem;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .shard:hover {
            box-shadow: var(--s-deep);
            border-color: rgba(115, 225, 99, 0.5); /* Accent green usage */
            transform: translateY(-4px);
        }

        .shard .glyph {
            background: linear-gradient(135deg, rgba(26, 115, 232, 0.1), rgba(115, 225, 99, 0.1));
            color: var(--c-accent-blue);
            margin-bottom: 1.5rem;
        }

        .shard .flag-body {
            flex-grow: 1;
        }

        .shard-node {
            display: inline-flex;
            align-items: center;
            color: var(--c-accent-blue);
            text-decoration: none;
            font-weight: 600;
            margin-top: 1.5rem;
        }

        .shard-node svg {
            margin-left: 0.5rem;
            transition: transform 0.2s;
        }

        .shard:hover .shard-node svg {
            transform: translateX(4px);
        }

        /* 页脚区域 */
        .spark {
            background-color: var(--c-surface-dark);
            color: var(--c-ink-light);
            padding: 4rem 5vw 2rem;
        }

        .cache {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            padding-bottom: 2rem;
            margin-bottom: 2rem;
        }

        .cache .ink-3 {
            color: var(--c-surface);
            margin: 0;
        }

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

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

        .trace a:hover {
            color: var(--c-surface);
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .cluster-inner {
                gap: 3rem;
            }
            .data-pane {
                bottom: -1rem;
                left: 1rem;
                right: 1rem;
            }
        }

        @media (max-width: 768px) {
            .pin {
                display: none; /* Mobile menu logic handled by JS typically, hiding for pure HTML structure simplicity as per rules */
            }
            .cluster-flag, .cluster-media {
                flex: 1 1 100%;
            }
            .portal {
                padding: 3rem 5vw;
                align-items: center; /* Center on mobile */
                text-align: center;
            }
            .portal-actions {
                justify-content: center;
            }
            .data-pane {
                position: relative;
                bottom: 0;
                left: 0;
                right: 0;
                margin-top: 1rem;
            }
        }

.omni-tail .omni-node{
            word-break: break-word;
            overflow-wrap: break-word;
        }

.omni-tail .omni-omni, .omni-tail .omni-pin{
            display: flex;
            flex-wrap: wrap;
        }

.omni-tail .omni-omni > *, .omni-tail .omni-pin > *{
            min-width: 0;
        }

.omni-tail{
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #dadce0;
            padding: 1rem 5vw;
        }

.omni-tail .omni-omni{
            max-width: 1400px;
            margin: 0 auto;
            justify-content: space-between;
            align-items: center;
        }

.omni-tail .omni-dino{
            width: 140px;
            display: flex;
            align-items: center;
        }

.omni-tail .omni-dino img{
            width: 100%;
            height: auto;
        }

.omni-tail .omni-pin{
            gap: 2rem;
            align-items: center;
        }

.omni-tail .omni-node{
            text-decoration: none;
            color: #5f6368;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all 0.15s ease;
            padding: 0.5rem 0;
            position: relative;
        }

.omni-tail .omni-node:hover{
            color: #202124;
        }

.omni-tail .omni-node.active{
            color: #1a73e8;
        }

.omni-tail .omni-node.active::after{
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: #1a73e8;
            border-radius: 2px;
        }

@media (max-width: 768px){.omni-tail .omni-pin{
                display: none; 
            }}

.omni-tail {
    background: rgb(255, 255, 255);
    background-image: none;
}

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

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

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

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

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

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

.cache-spark .cache-flag{
            word-break: break-word;
            overflow-wrap: break-word;
        }

.cache-spark .cache-flag{
            word-break: keep-all;
        }

.cache-spark .cache-ink-3{
            font-size: clamp(1.25rem, 2vw, 1.5rem);
            font-weight: 600;
            line-height: 1.4;
            white-space: normal;
            margin-bottom: 1rem;
        }

.cache-spark{
            background-color: #1f2328;
            color: #e8eaed;
            padding: 4rem 5vw 2rem;
        }

.cache-spark .cache-cache{
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            padding-bottom: 2rem;
            margin-bottom: 2rem;
        }

.cache-spark .cache-cache .cache-ink-3{
            color: #ffffff;
            margin: 0;
        }

.cache-spark .cache-trace{
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
        }

.cache-spark .cache-trace a{
            color: #5f6368;
            text-decoration: none;
            font-size: 0.9rem;
            transition: all 0.15s ease;
        }

.cache-spark .cache-trace a:hover{
            color: #ffffff;
        }