/* CSS 变量与设计基因参数 */
        :root {
            --primary: #5965ea;
            --primary-glow: rgba(89, 101, 234, 0.12);
            --bg: #fafaff;
            --text: #2b3056;
            --text-muted: #6e759f;
            --surface: #ffffff;
            --border: rgba(89, 101, 234, 0.08);
            --radius: 20px;
            --shadow-sm: 0 4px 12px rgba(89, 101, 234, 0.03);
            --shadow-md: 0 10px 30px rgba(89, 101, 234, 0.06);
            --shadow-lg: 0 20px 40px rgba(89, 101, 234, 0.1);
            --transition: 0.25s ease;
        }

        /* 基础重置 */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
            background-color: var(--bg);
            color: var(--text);
            line-height: 1.7;
            overflow-x: hidden;
        }

        /* 【强制】复用首页导航栏风格 (完美适配词汇表与黑名单) */
        .helm {
            background-color: rgba(250, 250, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 16px 0;
        }

        .flow {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
        }

        .glyph {
            display: flex;
            align-items: center;
            text-decoration: none;
            color: var(--text);
            font-weight: 800;
            font-size: 22px;
            gap: 10px;
        }

        .glyph img {
            height: 32px;
            width: auto;
        }

        .array {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            align-items: center;
        }

        .wire {
            color: var(--text-muted);
            text-decoration: none;
            padding: 8px 16px;
            border-radius: var(--radius);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }

        .wire:hover,
        .wire.active {
            color: var(--primary);
            background-color: var(--primary-glow);
        }

        /* 主体布局容器 */
        .hull {
            max-width: 1200px;
            margin: 110px auto 60px;
            padding: 0 24px;
        }

        /* 1. XChat 核心指令速查 (Article - intro) */
        .pulse {
            background: linear-gradient(135deg, #5965ea 0%, #3b46c4 100%);
            color: #ffffff;
            border-radius: 23px;
            padding: 60px 48px;
            box-shadow: var(--shadow-lg);
            margin-bottom: 40px;
            position: relative;
            overflow: hidden;
        }

        /* 创意种子：cinematic_strip 电影胶片/横条感背景纹理 */
        .pulse::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                        linear-gradient(0deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
            background-size: 20px 20px;
            opacity: 0.4;
        }

        .apex {
            font-size: 38px;
            font-weight: 800;
            line-height: 1.3;
            letter-spacing: -0.5px;
            margin-bottom: 16px;
            white-space: normal;
            word-break: keep-all;
        }

        .yarn {
            font-size: 16px;
            opacity: 0.9;
            max-width: 750px;
            margin-bottom: 32px;
            word-break: break-word;
            overflow-wrap: break-word;
        }

        /* 虚拟命令行输入框 */
        .mesh {
            background: rgba(0, 0, 0, 0.2);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 16px;
            padding: 16px 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            max-width: 600px;
            box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
        }

        .blip {
            width: 20px;
            height: 20px;
            fill: #ffffff;
            opacity: 0.8;
        }

        .drop {
            font-family: "Courier New", Courier, monospace;
            font-size: 15px;
            color: #a5b4fc;
            flex: 1;
            min-width: 0;
            word-break: break-all;
        }

        /* 2. 基础操作与快捷键 (Aside - faq) */
        .matrix {
            background-color: var(--surface);
            border-radius: 23px;
            padding: 48px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
            margin-bottom: 40px;
        }

        .matrix .apex {
            color: var(--text);
            font-size: 28px;
            margin-bottom: 12px;
        }

        .matrix .yarn {
            color: var(--text-muted);
            margin-bottom: 32px;
        }

        /* 网格卡片容器 */
        .flock {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }

        /* 卡片组件 */
        .node {
            flex: 1;
            min-width: 280px;
            background-color: #f8fafc;
            border: 1px solid rgba(89, 101, 234, 0.04);
            border-radius: 17px;
            padding: 28px;
            transition: var(--transition);
            position: relative;
        }

        .node:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: rgba(89, 101, 234, 0.12);
            background-color: #ffffff;
        }

        .node-crown {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 16px;
        }

        .node-blip {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background-color: var(--primary-glow);
            display: flex;
            align-items: center;
            justify-content: center;
            fill: var(--primary);
        }

        .node-apex {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
        }

        .node-yarn {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 快捷键模块补充 */
        .band {
            margin-top: 36px;
            padding-top: 24px;
            border-top: 1px dashed var(--border);
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .cell {
            background: #f1f5f9;
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .cell kbd {
            background: #ffffff;
            border: 1px solid #cbd5e1;
            box-shadow: 0 2px 0 #cbd5e1;
            padding: 2px 6px;
            border-radius: 4px;
            font-size: 11px;
        }

        /* 3. 频道管理与高级命令 (Aside - steps) */
        .zone {
            background-color: var(--surface);
            border-radius: 23px;
            padding: 48px;
            box-shadow: var(--shadow-md);
            border: 1px solid var(--border);
            margin-bottom: 48px;
        }

        .zone .apex {
            color: var(--text);
            font-size: 28px;
            margin-bottom: 12px;
        }

        .zone .yarn {
            color: var(--text-muted);
            margin-bottom: 32px;
        }

        /* 步骤型列表容器 */
        .steps-mesh {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        /* 步骤项 */
        .steps-drop {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-start;
            gap: 24px;
            padding: 28px;
            border-radius: 17px;
            background-color: #f8fafc;
            border-left: 4px solid var(--primary);
            transition: var(--transition);
        }

        .steps-drop:hover {
            background-color: #ffffff;
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }

        .steps-num {
            font-size: 24px;
            font-weight: 800;
            color: var(--primary);
            opacity: 0.4;
            line-height: 1;
        }

        .steps-info {
            flex: 1;
            min-width: 260px;
        }

        .steps-apex {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
        }

        .steps-code {
            font-family: monospace;
            background: #e0e7ff;
            color: #4338ca;
            padding: 2px 8px;
            border-radius: 6px;
            font-size: 14px;
            word-break: break-all;
        }

        .steps-yarn {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 底部信息区域 (Tail - echo / base / trail) */
        .tail {
            background-color: var(--surface);
            border-top: 1px solid var(--border);
            padding: 48px 0;
            color: var(--text-muted);
        }

        .base {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 24px;
        }

        .echo {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
        }

        .trail {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }

        .trail a {
            color: var(--text-muted);
            text-decoration: none;
            font-size: 14px;
            transition: var(--transition);
        }

        .trail a:hover {
            color: var(--primary);
        }

        /* 响应式断点设计 */
        @media (max-width: 768px) {
            .flow {
                flex-direction: column;
                gap: 16px;
            }

            .array {
                justify-content: center;
            }

            .pulse {
                padding: 36px 24px;
            }

            .apex {
                font-size: 28px;
            }

            .matrix,
            .zone {
                padding: 24px;
            }

            .node {
                min-width: 100%;
            }

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

            .trail {
                justify-content: center;
            }
        }

.nexus-helm{
            width: 100%;
            background-color: rgba(250, 250, 255, 0.9);
            backdrop-filter: blur(12px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid rgba(89, 101, 234, 0.08);
            transition: all 0.25s ease;
        }

.nexus-helm .nexus-flow{
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 16px 24px;
            max-width: 1300px;
            margin: 0 auto;
        }

.nexus-helm .nexus-glyph{
            display: flex;
            align-items: center;
            text-decoration: none;
            font-weight: 800;
            font-size: 24px;
            color: #5965ea;
            letter-spacing: -0.5px;
            transition: all 0.25s ease;
        }

.nexus-helm .nexus-glyph img{
            height: 32px;
            width: auto;
            margin-right: 8px;
        }

.nexus-helm .nexus-array{
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
        }

.nexus-helm .nexus-wire{
            text-decoration: none;
            color: #5d6382;
            font-size: 15px;
            font-weight: 500;
            padding: 8px 16px;
            border-radius: 17px;
            transition: all 0.25s ease;
            word-break: break-word;
            overflow-wrap: break-word;
        }

.nexus-helm .nexus-wire:hover{
            color: #5965ea;
            background-color: rgba(89, 101, 234, 0.05);
        }

.nexus-helm .nexus-array .nexus-wire[href="index.html"]{
            color: #ffffff;
            background-color: #5965ea;
            box-shadow: 0 4px 12px rgba(89, 101, 234, 0.2);
        }

@media (max-width: 768px){.nexus-helm .nexus-flow{
                flex-direction: column;
                gap: 16px;
            }

.nexus-helm .nexus-array{
                justify-content: center;
                width: 100%;
            }

.nexus-helm .nexus-wire{
                padding: 6px 12px;
                font-size: 14px;
            }}

.nexus-helm {
    background: rgb(250, 250, 255);
    background-image: none;
}

.echo-base {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.7;
    color: #2b3056;
}
.echo-base,
.echo-base *,
.echo-base *::before,
.echo-base *::after {
    box-sizing: border-box;
}

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

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

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

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

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

.echo-base .echo-hull{
            width: 100%;
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 24px;
        }

.echo-base{
            background-color: #0f1124;
            color: rgba(255, 255, 255, 0.7);
            padding: 64px 0 32px 0;
            margin-top: 80px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

.echo-base .echo-echo{
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 40px;
            margin-bottom: 48px;
        }

.echo-base .echo-brand-column{
            flex: 1;
            min-width: 260px;
        }

.echo-base .echo-brand-name{
            font-size: 22px;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
        }

.echo-base .echo-brand-desc{
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            max-width: 320px;
            line-height: 1.6;
        }

.echo-base .echo-links-column{
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
        }

.echo-base .echo-links-flock{
            min-width: 140px;
        }

.echo-base .echo-flock-apex{
            font-size: 14px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 16px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

.echo-base .echo-links-array{
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

.echo-base .echo-links-array a{
            color: rgba(255, 255, 255, 0.6);
            text-decoration: none;
            font-size: 14px;
            transition: color 0.25s ease;
        }

.echo-base .echo-links-array a:hover{
            color: #5965ea;
        }

.echo-base .echo-trail{
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 32px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

@media (max-width: 768px){.echo-base .echo-echo{
                flex-direction: column;
                gap: 32px;
            }

.echo-base .echo-links-column{
                gap: 24px;
            }}