/* ==========================================================================
           基底与变量体系 (Inherited Visual Contract)
           ========================================================================== */
        :root {
            --color-primary: #5ebde6;
            --color-primary-dark: #3ba3d1;
            --color-bg: #f5f9fc;
            --color-surface: #ffffff;
            --color-stem: #1a2b3c;
            --color-char: #4a5b6c;
            --color-border: #e2eef5;
            --radius-base: 18px;
            --radius-large: 22px;
            --shadow-soft: 0 8px 30px rgba(94, 189, 230, 0.12);
            --shadow-hover: 0 12px 40px rgba(94, 189, 230, 0.2);
            --transition-speed: 0.25s;
        }

        *, *::before, *::after {
            box-sizing: border-box;
            min-width: 0; /* Flex safe rule */
        }

        body {
            margin: 0;
            padding: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--color-bg);
            color: var(--color-char);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            word-break: break-word;
            overflow-wrap: break-word;
        }

        /* ==========================================================================
           强制排版与基础元素规范
           ========================================================================== */
        h1, h2, h3, h4, p { margin: 0; }
        
        .stem-1, .stem-2, .stem-3 {
            color: var(--color-stem);
            white-space: normal;
            word-break: keep-all;
        }

        .stem-1 {
            font-size: clamp(2rem, 4vw, 3.5rem);
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .stem-2 {
            font-size: clamp(1.75rem, 3vw, 2.5rem);
            font-weight: 700;
            line-height: 1.3;
        }

        .stem-3 {
            font-size: 1.25rem;
            font-weight: 600;
        }

        .char {
            font-size: 1.125rem;
            color: var(--color-char);
            line-height: 1.8;
            word-break: keep-all;
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        ul, ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }

        /* 图片处理 */
        .view {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-large);
            object-fit: cover;
        }

        /* ==========================================================================
           布局容器体系
           ========================================================================== */
        /* Flex基础规范 */
        .board, .layout, .pack, .band, .shell {
            display: flex;
            flex-wrap: wrap;
            min-width: 0;
        }

        .board {
            flex-direction: column;
            width: 100%;
        }

        /* 核心版心宽度 */
        .cloud, .space {
            width: 100%;
            padding: 5rem 5%;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
        }

        .cloud { background: var(--color-surface); }
        .space { background: var(--color-bg); }

        /* 内容约束壳层 */
        .shell {
            width: 100%;
            max-width: 1280px;
            gap: 4rem;
        }

        .pack { width: 100%; gap: 2rem; }
        .band { width: 100%; gap: 1.5rem; }

        /* ==========================================================================
           组件视觉语法 (继承首页变体)
           ========================================================================== */
        /* 交互按钮 */
        .tap {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.75rem;
            padding: 1rem 2.5rem;
            background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
            color: var(--color-surface);
            font-weight: 600;
            border-radius: 50px;
            box-shadow: 0 4px 15px rgba(94, 189, 230, 0.3), inset 0 2px 4px rgba(255, 255, 255, 0.3);
            border: none;
            transition: all var(--transition-speed) ease;
            cursor: pointer;
            white-space: nowrap;
        }

        .tap:hover, .tap:focus {
            transform: translateY(-3px);
            box-shadow: 0 8px 25px rgba(94, 189, 230, 0.4), inset 0 2px 4px rgba(255, 255, 255, 0.4);
            outline: none;
        }

        .tap.stroke {
            background: transparent;
            color: var(--color-primary-dark);
            border: 2px solid var(--color-primary);
            box-shadow: none;
        }

        .tap.stroke:hover {
            background: var(--color-primary);
            color: var(--color-surface);
            box-shadow: var(--shadow-soft);
        }

        /* 智能卡片表面 */
        .smart-view {
            background: var(--color-surface);
            border-radius: var(--radius-large);
            padding: 2.5rem;
            box-shadow: var(--shadow-soft);
            border: 1px solid var(--color-border);
            transition: all var(--transition-speed) ease;
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .smart-view:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: var(--color-primary);
        }

        /* SVG矢量徽章 */
        .glyph {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: linear-gradient(135deg, #f0f7fb 0%, #e2eef5 100%);
            color: var(--color-primary-dark);
        }
        
        .glyph svg {
            width: 24px;
            height: 24px;
            fill: currentColor;
        }

        /* ==========================================================================
           强制复用导航栏样式 (lexflow)
           ========================================================================== */
        .lexflow {
            background-color: var(--color-surface);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .lexflow-inner {
            max-width: 1280px;
            margin: 0 auto;
            padding: 1rem 5%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }
        .dog img {
            height: 32px;
            width: auto;
            display: block;
        }
        .cand {
            display: flex;
            align-items: center;
            gap: 2rem;
        }
        .bind {
            color: var(--color-char);
            font-weight: 500;
            transition: color var(--transition-speed) ease;
        }
        .bind:hover, .bind.active {
            color: var(--color-primary-dark);
        }

        /* ==========================================================================
           特定区块变体布局
           ========================================================================== */
        
        /* 1. Hero 区域 (Acquire) */
        .prime .shell {
            align-items: center;
            justify-content: space-between;
        }
        .prime .pack {
            flex: 1 1 400px;
            flex-direction: column;
            gap: 2rem;
            z-index: 2;
        }
        .prime .view {
            flex: 1 1 500px;
            box-shadow: 0 20px 50px rgba(26, 43, 60, 0.08);
            transform: perspective(1000px) rotateY(-5deg) translateY(0);
            transition: transform 0.5s ease;
        }
        .prime .view:hover {
            transform: perspective(1000px) rotateY(0deg) translateY(-10px);
        }

        /* 2. Download Grid 区域 (Comparison) */
        .space.comparison-area {
            background: linear-gradient(180deg, var(--color-bg) 0%, #ebf4f9 100%);
        }
        .comparison-peak {
            width: 100%;
            text-align: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 1rem;
            margin-bottom: 2rem;
        }
        .comparison-visual {
            width: 100%;
            margin-bottom: 3rem;
            border-radius: var(--radius-large);
            overflow: hidden;
            box-shadow: var(--shadow-soft);
        }
        /* Grid 布局 */
        .grid-matrix {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 2rem;
            width: 100%;
        }
        .node.card-version {
            align-items: flex-start;
        }
        .node.card-version .char {
            font-size: 0.95rem;
            flex-grow: 1;
        }
        .version-tag {
            font-size: 0.8rem;
            color: var(--color-primary-dark);
            background: rgba(94, 189, 230, 0.1);
            padding: 0.25rem 0.75rem;
            border-radius: 12px;
            font-weight: 600;
        }

        /* 3. System Requirements (Sys-req) */
        .req-table {
            width: 100%;
            background: var(--color-surface);
            border-radius: var(--radius-large);
            border: 1px solid var(--color-border);
            overflow: hidden;
        }
        .req-row {
            display: flex;
            padding: 1.5rem 2rem;
            border-bottom: 1px solid var(--color-border);
            align-items: center;
            gap: 2rem;
        }
        .req-row:last-child {
            border-bottom: none;
        }
        .req-row:hover {
            background: var(--color-bg);
        }
        .req-os {
            flex: 0 0 150px;
            font-weight: 700;
            color: var(--color-stem);
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .req-detail {
            flex: 1;
            color: var(--color-char);
            font-size: 0.95rem;
        }

        /* 4. Install Guide (Steps) */
        .steps-matrix {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 3rem;
            width: 100%;
        }
        .step-node {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            position: relative;
        }
        .step-num {
            width: 54px;
            height: 54px;
            border-radius: 50%;
            background: var(--color-surface);
            border: 2px solid var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-primary-dark);
            box-shadow: 0 4px 15px rgba(94, 189, 230, 0.15);
        }

        /* 页脚体系 */
        .rear {
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
            padding: 4rem 5% 2rem;
            text-align: center;
        }
        .rear .pack {
            justify-content: center;
            margin-bottom: 2rem;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .prime .pack, .prime .view {
                flex: 1 1 100%;
            }
            .prime .pack {
                text-align: center;
                align-items: center;
            }
            .req-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.5rem;
                padding: 1.5rem;
            }
            .req-os {
                flex: auto;
            }
        }
        @media (max-width: 768px) {
            .cloud, .space { padding: 3rem 5%; }
            .stem-1 { font-size: 2.2rem; }
            .stem-2 { font-size: 1.8rem; }
            .cand {
                width: 100%;
                justify-content: center;
                margin-top: 1rem;
                flex-wrap: wrap;
                gap: 1rem;
            }
            .grid-matrix, .steps-matrix {
                grid-template-columns: 1fr;
            }
        }

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

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

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

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

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

.cand-lexflow a.cand-bind {
    --aisite-shell-nav-padding: 0.5rem 1rem;
    --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;
}

.cand-lexflow a.cand-bind,
.cand-lexflow a.cand-bind:hover,
.cand-lexflow a.cand-bind:focus,
.cand-lexflow a.cand-bind:active,
.cand-lexflow a.cand-bind.active,
.cand-lexflow a.cand-bind[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);
}

.cand-lexflow{
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid #e2eef5;
            padding: 1rem 5vw;
        }

.cand-lexflow .cand-lexflow-inner{
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            max-width: 1400px;
            margin: 0 auto;
            gap: 1rem;
        }

.cand-lexflow .cand-dog{
            display: flex;
            align-items: center;
        }

.cand-lexflow .cand-dog img{
            height: 32px;
            width: auto;
        }

.cand-lexflow .cand-cand{
            display: flex;
            flex-wrap: wrap;
            gap: 0.5rem;
        }

.cand-lexflow .cand-bind{
            text-decoration: none;
            color: #4a5b6c;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 50px;
            transition: all 0.25s ease;
            font-size: 0.95rem;
        }

.cand-lexflow .cand-bind:hover, .cand-lexflow .cand-bind.active{
            background-color: rgba(94, 189, 230, 0.1);
            color: #3ba3d1;
        }

.cand-lexflow {
    background: rgb(255, 255, 255);
    background-image: none;
}

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

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

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

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

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

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

.space-base .space-char{
            font-size: 1rem;
            word-break: break-word;
            overflow-wrap: break-word;
            word-break: keep-all;
            margin-bottom: 1.2rem;
            color: #4a5b6c;
        }

.space-base .space-board-center{
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 5vw;
        }

.space-base .space-bind{
            text-decoration: none;
            color: #4a5b6c;
            font-weight: 500;
            padding: 0.5rem 1rem;
            border-radius: 50px;
            transition: all 0.25s ease;
            font-size: 0.95rem;
        }

.space-base .space-bind:hover, .space-base .space-bind.active{
            background-color: rgba(94, 189, 230, 0.1);
            color: #3ba3d1;
        }

.space-base{
            background: #111e2a;
            color: rgba(255, 255, 255, 0.6);
            padding: 4rem 5vw;
            font-size: 0.9rem;
            text-align: center;
        }

.space-base .space-base-stem{
            font-size: 1.5rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
        }

.space-base .space-base-binds{
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 2rem;
            margin: 2rem 0;
        }

.space-base .space-base-binds .space-bind{
            color: rgba(255, 255, 255, 0.6);
            padding: 0;
        }

.space-base .space-base-binds .space-bind:hover{
            color: #5ebde6;
            background: transparent;
        }