/* 
         * ==========================================
         * 核心变量与设计基因映射 (继承首页视觉语法)
         * ==========================================
         */
        :root {
            --color-brand: #7c4bd1;
            --color-brand-dark: #5c35a3;
            --color-brand-light: #f1edfa;
            --color-surface: #ffffff;
            --color-surface-alt: #f8f7fa;
            --color-surface-deep: #161224;
            --color-text-apex: #1a1525;
            --color-text-stream: #4a4559;
            --color-text-inverse: #ffffff;
            --color-border: #e6e2f0;
            --color-border-dark: #2a243a;
            
            --radius-base: 8px;
            --radius-large: 11px;
            
            --shadow-soft: 0 4px 12px rgba(26, 21, 37, 0.05);
            --shadow-hover: 0 12px 32px rgba(124, 75, 209, 0.12);
            --transition-speed: 0.15s ease;
            
            --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            --width-realm: 1240px;
        }

        /* 
         * ==========================================
         * 全局重置与基础排版
         * ==========================================
         */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: var(--font-stack);
            background-color: var(--color-surface-alt);
            color: var(--color-text-stream);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

        /* 
         * ==========================================
         * 强制 Flex/Grid 规则与防溢出
         * ==========================================
         */
        .cluster-flex {
            display: flex;
            flex-wrap: wrap;
        }

        .cluster-flex > * {
            min-width: 0;
        }

        .stream-wrap {
            word-break: break-word;
            overflow-wrap: break-word;
            white-space: normal;
        }

        .stream-cn {
            word-break: keep-all;
        }

        /* 
         * ==========================================
         * 强制导航栏样式 (复用首页基因)
         * ==========================================
         */
        .crown-top {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(8px);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .nexus-tunnel {
            max-width: var(--width-realm);
            margin: 0 auto;
            padding: 1rem 2rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
        }

        .nexus-tunnel > * {
            min-width: 0;
        }

        .sigil img {
            height: 32px;
            display: block;
        }

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

        .wire-route {
            color: var(--color-text-stream);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color var(--transition-speed);
        }

        .wire-route:hover,
        .wire-route.active {
            color: var(--color-brand);
        }

        /* 
         * ==========================================
         * 页面角色变体：首屏区域 (Hero / Portal) - 创意种子: split_diagonal
         * ==========================================
         */
        .core-portal {
            background-color: var(--color-surface-deep);
            color: var(--color-text-inverse);
            position: relative;
            overflow: hidden;
            min-height: 580px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
        }

        .portal-split {
            max-width: var(--width-realm);
            margin: 0 auto;
            padding: 4rem 2rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .portal-split > * {
            min-width: 0;
        }

        .portal-stream {
            flex: 1 1 500px;
            padding-right: 3rem;
        }

        .apex-portal {
            font-size: 3rem;
            font-weight: 700;
            line-height: 1.25;
            letter-spacing: -0.02em;
            margin-bottom: 1.5rem;
            color: var(--color-surface);
        }

        .stream-portal {
            font-size: 1.2rem;
            color: #b8b2c8;
            margin-bottom: 2.5rem;
            max-width: 540px;
            line-height: 1.6;
        }

        /* 对角线视觉分割与几何造景 */
        .portal-diagonal-lens {
            flex: 1 1 500px;
            position: relative;
            min-height: 400px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
        }

        .portal-diagonal-lens::before {
            content: '';
            position: absolute;
            top: -20%;
            right: -10%;
            width: 120%;
            height: 140%;
            background: linear-gradient(135deg, rgba(124, 75, 209, 0.2) 0%, rgba(22, 18, 36, 0) 100%);
            clip-path: polygon(25% 0, 100% 0, 100% 100%, 0 100%);
            z-index: -1;
        }

        .glyph-portal-art {
            width: 100%;
            max-width: 480px;
            height: auto;
            filter: drop-shadow(0 20px 40px rgba(0,0,0,0.4));
        }

        /* 
         * ==========================================
         * 结构容器与版心节奏
         * ==========================================
         */
        .realm-tunnel {
            padding-bottom: 6rem;
        }

        .tunnel-layout {
            max-width: var(--width-realm);
            margin: 5rem auto 0;
            padding: 0 2rem;
        }

        .apex-primary {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--color-text-apex);
            margin-bottom: 1rem;
            letter-spacing: -0.01em;
        }

        .stream-summary {
            font-size: 1.1rem;
            color: var(--color-text-stream);
            margin-bottom: 3rem;
            max-width: 700px;
        }

        /* 
         * ==========================================
         * 模块 1: 订阅机制原理 (Intro) - 卡片阵列变体
         * ==========================================
         */
        .cluster-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
        }

        .node-capability {
            background-color: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-large);
            padding: 2.5rem;
            transition: transform var(--transition-speed), box-shadow var(--transition-speed);
        }

        .node-capability:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(124, 75, 209, 0.3);
        }

        .node-capability .glyph-vector {
            width: 48px;
            height: 48px;
            color: var(--color-brand);
            margin-bottom: 1.5rem;
            background: var(--color-brand-light);
            padding: 10px;
            border-radius: 12px;
        }

        .apex-node {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--color-text-apex);
            margin-bottom: 1rem;
        }

        /* 
         * ==========================================
         * 模块 2: 订阅地址配置与自动更新 (Steps) - 流程流布局
         * ==========================================
         */
        .cloak-workflow {
            background-color: var(--color-surface);
            border-radius: var(--radius-large);
            border: 1px solid var(--color-border);
            padding: 4rem 3rem;
            position: relative;
        }

        .cluster-steps {
            display: flex;
            flex-wrap: wrap;
            gap: 3rem;
            position: relative;
        }

        .cluster-steps::before {
            content: '';
            position: absolute;
            top: 24px;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--color-border);
            z-index: 1;
        }

        .packet-step {
            flex: 1 1 240px;
            position: relative;
            z-index: 2;
        }

        .track-indicator {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background-color: var(--color-brand);
            color: var(--color-surface);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
            border: 4px solid var(--color-surface);
            box-shadow: var(--shadow-soft);
        }

        .stream-step {
            font-size: 0.95rem;
            color: var(--color-text-stream);
        }

        /* 
         * ==========================================
         * 模块 3: 常见协议矩阵 (Comparison) - 杂志风数据表
         * ==========================================
         */
        .cluster-matrix {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1.5rem;
        }

        .cell-protocol {
            background-color: var(--color-surface);
            border-radius: var(--radius-base);
            border: 1px solid var(--color-border);
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .crown-protocol {
            background-color: var(--color-surface-alt);
            padding: 1.5rem;
            border-bottom: 1px solid var(--color-border);
        }

        .apex-protocol {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--color-text-apex);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .apex-protocol svg {
            width: 20px;
            height: 20px;
            color: var(--color-brand);
        }

        .peer-traits {
            padding: 1.5rem;
            flex: 1;
        }

        .track-trait {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 0.75rem 0;
            border-bottom: 1px dashed var(--color-border);
        }

        .track-trait:last-child {
            border-bottom: none;
        }

        .stream-chip {
            font-size: 0.9rem;
            color: var(--color-text-stream);
        }

        .stream-value {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--color-text-apex);
        }

        /* 
         * ==========================================
         * 模块 4: 进阶技巧 (FAQ/Advanced) - 侧边栏/次级模块变体
         * ==========================================
         */
        .cloak-tips {
            background: linear-gradient(145deg, var(--color-surface), var(--color-brand-light));
            border-radius: var(--radius-large);
            padding: 3rem;
            border: 1px solid rgba(124, 75, 209, 0.15);
        }

        .cluster-tips {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2.5rem;
        }

        .packet-tip h3 {
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-brand-dark);
            margin-bottom: 0.8rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        /* 
         * ==========================================
         * 按钮与行动入口语法
         * ==========================================
         */
        .pulse-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--color-brand);
            color: var(--color-text-inverse);
            padding: 0.8rem 2rem;
            border-radius: var(--radius-base);
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(124, 75, 209, 0.3);
            transition: transform var(--transition-speed), box-shadow var(--transition-speed), background-color var(--transition-speed);
            cursor: pointer;
            border: none;
        }

        .pulse-primary:hover {
            background-color: var(--color-brand-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(124, 75, 209, 0.4);
        }

        .pulse-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: transparent;
            color: var(--color-surface);
            padding: 0.8rem 2rem;
            border-radius: var(--radius-base);
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, 0.3);
            transition: background-color var(--transition-speed), border-color var(--transition-speed);
        }

        .pulse-secondary:hover {
            background-color: rgba(255, 255, 255, 0.1);
            border-color: var(--color-surface);
        }

        /* 
         * ==========================================
         * 页脚区域
         * ==========================================
         */
        .tail-anchor {
            background-color: var(--color-surface-deep);
            color: #8c8599;
            padding: 3rem 2rem;
            text-align: center;
            border-top: 1px solid var(--color-border-dark);
            margin-top: 5rem;
        }

        .tail-brand {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-surface);
            margin-bottom: 1rem;
        }

        /* 
         * ==========================================
         * 响应式断点
         * ==========================================
         */
        @media (max-width: 1024px) {
            .apex-portal {
                font-size: 2.5rem;
            }
            .portal-split {
                padding: 3rem 2rem;
            }
        }

        @media (max-width: 768px) {
            .mesh-routes {
                display: none; /* 移动端简化导航，此处仅示意断点 */
            }
            .portal-split {
                flex-direction: column;
                text-align: center;
            }
            .portal-stream {
                padding-right: 0;
            }
            .portal-diagonal-lens {
                margin-top: 3rem;
                min-height: 300px;
            }
            .cluster-steps::before {
                display: none;
            }
            .cloak-workflow {
                padding: 2.5rem 1.5rem;
            }
            .track-indicator {
                margin: 0 auto 1rem;
            }
            .packet-step {
                text-align: center;
            }
        }

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

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

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

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

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

.nexus-crown-top a.nexus-wire.nexus-wire-route {
    --aisite-shell-nav-padding: 0.5rem 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;
}

.nexus-crown-top a.nexus-wire.nexus-wire-route,
.nexus-crown-top a.nexus-wire.nexus-wire-route:hover,
.nexus-crown-top a.nexus-wire.nexus-wire-route:focus,
.nexus-crown-top a.nexus-wire.nexus-wire-route:active,
.nexus-crown-top a.nexus-wire.nexus-wire-route.active,
.nexus-crown-top a.nexus-wire.nexus-wire-route[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);
}

.nexus-crown-top .nexus-mesh{
            display: flex;
            flex-wrap: wrap;
        }

.nexus-crown-top .nexus-mesh > *{
            min-width: 0;
        }

.nexus-crown-top{
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid #e6e2f0;
            position: sticky;
            top: 0;
            z-index: 100;
        }

.nexus-crown-top .nexus-nexus-tunnel{
            max-width: 1180px;
            margin: 0 auto;
            padding: 1rem 2rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
        }

.nexus-crown-top .nexus-sigil img{
            height: 32px;
            width: auto;
            display: block;
        }

.nexus-crown-top .nexus-mesh-routes{
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            align-items: center;
        }

.nexus-crown-top .nexus-wire-route{
            text-decoration: none;
            color: #4a4559;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
            transition: border-color 0.15s ease, color 0.15s ease;
        }

.nexus-crown-top .nexus-wire-route:hover, .nexus-crown-top .nexus-wire-route.active{
            color: #7c4bd1;
            border-bottom-color: #7c4bd1;
        }

@media (max-width: 768px){.nexus-crown-top .nexus-nexus-tunnel{
                flex-direction: column;
                gap: 1rem;
            }

.nexus-crown-top .nexus-mesh-routes{
                width: 100%;
                justify-content: center;
            }}

.nexus-crown-top {
    background: rgb(255, 255, 255);
    background-image: none;
}

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

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

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

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

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

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

.anchor-tail-anchor .anchor-track-tags{
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
            margin-bottom: 2rem;
        }

.anchor-tail-anchor{
            background-color: #161224;
            color: rgba(255, 255, 255, 0.7);
            padding: 4rem 2rem 2rem;
            margin-top: auto;
        }

.anchor-tail-anchor .anchor-basin-inner{
            max-width: 1180px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

.anchor-tail-anchor .anchor-apex-brand{
            color: #ffffff;
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
            letter-spacing: 1px;
        }

.anchor-tail-anchor .anchor-stream-legal{
            font-size: 0.85rem;
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 2rem;
            width: 100%;
            margin-top: 2rem;
        }