:root {
            --bg-deep: #0a0c10;
            --bg-sub: #11141a;
            --bg-surface: #1a1e27;
            --accent: #a0e514;
            --accent-dim: rgba(160, 229, 20, 0.15);
            --text-main: #f0f2f5;
            --text-dim: #9ba1ad;
            --border: #2a313e;
            --shadow-base: 0 4px 24px rgba(0, 0, 0, 0.4);
            --shadow-brand: 0 8px 32px rgba(160, 229, 20, 0.15);
            --shadow-inner: inset 0 0 40px rgba(0,0,0,0.5);
            --radius: 8px;
            --transition: 0.15s ease;
        }

        /* Reset & Base */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            background-color: var(--bg-deep);
            color: var(--text-dim);
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            line-height: 1.6;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition);
        }

        /* Mandatory Layout Rules */
        .dock, .batch, .zone, .array {
            display: flex;
            flex-wrap: wrap;
        }

        .dock > *, .batch > *, .zone > *, .array > * {
            min-width: 0;
        }

        /* Typography */
        .topic {
            color: var(--text-main);
            white-space: normal;
            word-break: break-word;
            overflow-wrap: break-word;
        }

        .char {
            word-break: break-word;
            overflow-wrap: break-word;
        }

        /* Navigation (Reused) */
        .apex {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 12, 16, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
        }

        .shell {
            max-width: 1320px;
            margin: 0 auto;
            padding: 16px 5vw;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

        .shell > * { min-width: 0; }

        .paw img {
            height: 28px;
            display: block;
        }

        .array {
            gap: 24px;
            align-items: center;
        }

        .node {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-dim);
        }

        .node:hover, .node.active {
            color: var(--text-main);
        }

        .node.active {
            position: relative;
            color: var(--accent);
        }

        /* Main Containers */
        .pad {
            max-width: 1320px;
            margin: 0 auto;
            padding: 80px 5vw;
        }

        /* Article: Hero / Intro (Mosaic Collage Vibe) */
        .board {
            position: relative;
            background: radial-gradient(circle at 80% 30%, var(--accent-dim) 0%, transparent 60%),
                        linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-sub) 100%);
            overflow: hidden;
            border-bottom: 1px solid var(--border);
        }

        .board .pad {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 60px;
            align-items: center;
            padding-top: 120px;
            padding-bottom: 120px;
        }

        .board-char .topic {
            font-size: clamp(2.5rem, 5vw, 4rem);
            font-weight: 900;
            line-height: 1.2;
            letter-spacing: -1px;
            margin-bottom: 24px;
        }

        .board-char .char {
            font-size: 1.125rem;
            margin-bottom: 40px;
            max-width: 500px;
        }

        .batch-tags {
            gap: 16px;
        }

        .phrase {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            padding: 12px 24px;
            border-radius: 100px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-main);
            font-weight: 600;
            font-size: 0.95rem;
            box-shadow: var(--shadow-base);
            transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
        }

        .phrase:hover {
            transform: translateY(-3px);
            border-color: var(--accent);
            box-shadow: var(--shadow-brand);
        }

        .phrase .glyph {
            color: var(--accent);
            width: 20px;
            height: 20px;
        }

        /* SVG Mosaic Animation Container */
        .cloud {
            position: relative;
            height: 400px;
            display: flex;
            justify-content: center;
            align-items: center;
            perspective: 1000px;
        }

        .cloud-core {
            position: relative;
            z-index: 2;
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: 50%;
            width: 120px;
            height: 120px;
            display: flex;
            justify-content: center;
            align-items: center;
            box-shadow: var(--shadow-brand), var(--shadow-inner);
        }

        .cloud-core svg {
            width: 50px;
            height: 50px;
            fill: var(--accent);
        }

        .wave-band {
            position: absolute;
            width: 300px;
            height: 300px;
            z-index: 1;
            display: flex;
            justify-content: space-between;
            align-items: center;
            opacity: 0.6;
        }

        .wave-band {
            width: 6px;
            background: var(--accent);
            border-radius: 3px;
            animation: aisitexPulse 1.5s infinite ease-in-out alternate;
        }

        .wave-band:nth-child(1) { height: 40px; animation-delay: 0.1s; }
        .wave-band:nth-child(2) { height: 80px; animation-delay: 0.3s; }
        .wave-band:nth-child(3) { height: 140px; animation-delay: 0.5s; }
        .wave-band:nth-child(4) { height: 220px; animation-delay: 0.2s; }
        .wave-band:nth-child(5) { height: 280px; animation-delay: 0.6s; }
        .wave-band:nth-child(6) { height: 220px; animation-delay: 0.4s; }
        .wave-band:nth-child(7) { height: 140px; animation-delay: 0.1s; }
        .wave-band:nth-child(8) { height: 80px; animation-delay: 0.5s; }
        .wave-band:nth-child(9) { height: 40px; animation-delay: 0.2s; }

        @keyframes aisitexPulse {
            0% { transform: scaleY(0.3); opacity: 0.3; }
            100% { transform: scaleY(1); opacity: 1; }
        }

        .float-cell {
            position: absolute;
            background: var(--bg-deep);
            border: 1px solid var(--border);
            padding: 8px 16px;
            border-radius: var(--radius);
            font-size: 0.85rem;
            color: var(--text-main);
            box-shadow: var(--shadow-base);
            z-index: 3;
            transition: transform var(--transition);
        }
        
        .float-cell:hover {
            transform: scale(1.05);
            border-color: var(--accent);
        }

        .float-1 { top: 10%; left: 10%; }
        .float-2 { bottom: 20%; right: 5%; }
        .float-3 { top: 30%; right: 15%; }

        /* Section: Tech Feature */
        .skin {
            background-color: var(--bg-sub);
            border-bottom: 1px solid var(--border);
        }

        .skin .pad {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
            gap: 80px;
            align-items: center;
        }

        .skin-media {
            order: 2;
        }

        @media (min-width: 1024px) {
            .skin-media { order: 1; }
            .skin-char { order: 2; }
        }

        .art {
            width: 100%;
            height: auto;
            border-radius: var(--radius);
            box-shadow: var(--shadow-base);
            border: 1px solid var(--border);
            display: block;
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .art:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 40px rgba(0,0,0,0.6);
        }

        .skin-char .topic {
            font-size: clamp(2rem, 3vw, 2.5rem);
            font-weight: 800;
            margin-bottom: 20px;
        }

        .skin-char > .char {
            font-size: 1.1rem;
            margin-bottom: 40px;
        }

        .batch-array {
            flex-direction: column;
            gap: 20px;
        }

        .gram {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            padding: 20px;
            background: var(--bg-surface);
            border-radius: var(--radius);
            border: 1px solid transparent;
            transition: background var(--transition), border-color var(--transition);
        }

        .gram:hover {
            background: var(--bg-deep);
            border-color: var(--border);
        }

        .gram-glyph {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            background: rgba(160, 229, 20, 0.1);
            border-radius: var(--radius);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
        }

        .gram-glyph svg {
            width: 24px;
            height: 24px;
        }

        .gram-shell .topic {
            font-size: 1.125rem;
            margin-bottom: 6px;
        }

        .gram-shell .char {
            font-size: 0.9rem;
        }

        /* Aside: AI Assistant / Steps */
        .base {
            background: var(--bg-deep);
            position: relative;
        }

        .base::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; height: 1px;
            background: linear-gradient(90deg, transparent, var(--border), transparent);
        }

        .base .pad {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        .base .topic {
            font-size: clamp(2rem, 3vw, 2.5rem);
            font-weight: 800;
            margin-bottom: 20px;
        }

        .base > .pad > .char {
            font-size: 1.1rem;
            max-width: 680px;
            margin-bottom: 60px;
        }

        .batch-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
            width: 100%;
        }

        .idiom {
            background: var(--bg-surface);
            border-radius: var(--radius);
            padding: 40px 30px;
            border: 1px solid var(--border);
            box-shadow: var(--shadow-inner);
            text-align: left;
            position: relative;
            overflow: hidden;
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .idiom:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-base), inset 0 0 20px rgba(160, 229, 20, 0.05);
            border-color: rgba(160, 229, 20, 0.3);
        }

        .idiom::after {
            content: '';
            position: absolute;
            top: 0; right: 0;
            width: 100px; height: 100px;
            background: radial-gradient(circle at top right, var(--accent-dim), transparent);
            border-radius: 0 0 0 100px;
            pointer-events: none;
        }

        .idiom-glyph {
            width: 56px;
            height: 56px;
            margin-bottom: 24px;
            color: var(--text-main);
        }

        .idiom-glyph svg {
            width: 100%;
            height: 100%;
            stroke-width: 1.5;
        }

        .idiom .topic {
            font-size: 1.25rem;
            margin-bottom: 12px;
        }

        .idiom .char {
            font-size: 0.95rem;
        }

        /* Footer */
        .heel {
            background: var(--bg-sub);
            border-top: 1px solid var(--border);
            padding: 60px 5vw;
            text-align: center;
        }

        .heel .topic {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .heel .char {
            font-size: 0.85rem;
            color: var(--text-dim);
        }

        .trail {
            display: flex;
            justify-content: center;
            gap: 24px;
            margin-top: 24px;
            flex-wrap: wrap;
        }

        .trail .node {
            font-size: 0.85rem;
        }
        
        /* Mobile Adjustments */
        @media (max-width: 768px) {
            .apex { padding: 10px 0; }
            .shell { flex-direction: column; gap: 16px; align-items: flex-start; }
            .array { width: 100%; overflow-x: auto; padding-bottom: 8px; justify-content: flex-start; }
            .board .pad { padding-top: 60px; padding-bottom: 60px; }
            .pad { padding: 60px 5vw; }
            .cloud { height: 300px; }
            .wave-band { width: 200px; height: 200px; }
            .float-cell { font-size: 0.75rem; padding: 6px 12px; }
        }

.pinyin-apex {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    word-break: break-word;
    color: var(--char-main);
}
.pinyin-apex,
.pinyin-apex *,
.pinyin-apex *::before,
.pinyin-apex *::after {
    box-sizing: border-box;
}

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

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

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

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

.pinyin-apex a.pinyin-node {
    --aisite-shell-nav-padding: 6px 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;
}

.pinyin-apex a.pinyin-node,
.pinyin-apex a.pinyin-node:hover,
.pinyin-apex a.pinyin-node:focus,
.pinyin-apex a.pinyin-node:active,
.pinyin-apex a.pinyin-node.active,
.pinyin-apex a.pinyin-node[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);
}

.pinyin-apex .pinyin-shell{
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 5vw;
        }

.pinyin-apex{
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(10, 12, 16, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid #2a313e;
        }

.pinyin-apex .pinyin-shell{
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            min-height: 72px;
            padding-top: 10px;
            padding-bottom: 10px;
        }

.pinyin-apex .pinyin-paw{
            min-width: 0;
            display: flex;
            align-items: center;
            font-weight: 800;
            font-size: 1.25rem;
            letter-spacing: 1px;
            color: #a0e514;
        }

.pinyin-apex .pinyin-paw img{
            height: 28px;
            width: auto;
            display: block;
        }

.pinyin-apex .pinyin-array{
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            align-items: center;
        }

.pinyin-apex .pinyin-node{
            min-width: 0;
            font-size: 0.95rem;
            font-weight: 500;
            color: #9ba1ad;
            padding: 6px 0;
            position: relative;
        }

.pinyin-apex .pinyin-node:hover, .pinyin-apex .pinyin-node.active{
            color: #f0f2f5;
        }

.pinyin-apex .pinyin-node.active::after{
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: #a0e514;
            box-shadow: 0 0 8px #a0e514;
        }

@media (max-width: 768px){.pinyin-apex .pinyin-array{
                display: none; 
            }

.pinyin-apex .pinyin-shell{
                justify-content: center;
            }}

.pinyin-apex {
    background: rgb(10, 12, 16);
    background-image: none;
}

.base-heel {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    word-break: break-word;
    color: var(--char-main);
}
.base-heel,
.base-heel *,
.base-heel *::before,
.base-heel *::after {
    box-sizing: border-box;
}

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

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

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

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

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

.base-heel .base-char, .base-heel .base-topic{
            word-break: keep-all;
        }

.base-heel .base-shell{
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 5vw;
        }

.base-heel .base-paw{
            min-width: 0;
            display: flex;
            align-items: center;
            font-weight: 800;
            font-size: 1.25rem;
            letter-spacing: 1px;
            color: #a0e514;
        }

.base-heel .base-paw img{
            height: 28px;
            width: auto;
            display: block;
        }

.base-heel{
            background: #050608;
            padding: 64px 0 32px 0;
            border-top: 1px solid #2a313e;
        }

.base-heel .base-base-grid{
            display: grid;
            grid-template-columns: 2fr repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 64px;
        }

.base-heel .base-base-brand .base-paw{
            margin-bottom: 24px;
        }

.base-heel .base-base-brand .base-char{
            color: #9ba1ad;
            font-size: 0.9rem;
            max-width: 300px;
        }

.base-heel .base-root-col .base-topic{
            font-size: 1rem;
            color: #f0f2f5;
            margin-bottom: 20px;
            font-weight: 600;
        }

.base-heel .base-root-node{
            display: block;
            color: #9ba1ad;
            margin-bottom: 12px;
            font-size: 0.9rem;
        }

.base-heel .base-root-node:hover{
            color: #a0e514;
        }

.base-heel .base-trail{
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 32px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            color: rgba(255, 255, 255, 0.4);
            font-size: 0.85rem;
        }

@media (max-width: 1024px){.base-heel .base-base-grid{
                grid-template-columns: repeat(2, 1fr);
            }}

@media (max-width: 768px){.base-heel .base-base-grid{
                grid-template-columns: 1fr;
            }}