:root {
            --primary: #da1e2e;
            --primary-glow: rgba(218, 30, 46, 0.4);
            --bg-dark: #0a0a0a;
            --bg-deep: #050505;
            --surface: #141414;
            --text-main: #f5f5f5;
            --text-dim: #a0a0a0;
            --radius: 20px;
            --transition: 0.25s ease;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            word-break: break-word;
            overflow-wrap: break-word;
        }

        body {
            background-color: var(--bg-dark);
            color: var(--text-main);
            font-family: "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        /* 顶部导航区域 - Apex & Orbit */
        .apex {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            padding: 20px 0;
        }

        .orbit-vault {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 40px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .orbit-ribbon {
            background: rgba(20, 20, 20, 0.85);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 50px;
            padding: 8px 32px;
            display: flex;
            align-items: center;
            gap: 40px;
        }

        .glyph {
            height: 32px;
            display: flex;
            align-items: center;
        }

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

        .spool {
            display: flex;
            gap: 28px;
            list-style: none;
        }

        .node {
            color: var(--text-dim);
            text-decoration: none;
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
        }

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

        /* 主内容容器 */
        main {
            display: block;
        }

        /* 首屏展示区 - Zenith (split_diagonal) */
        .zenith-veil {
            min-height: 100vh;
            display: flex;
            position: relative;
            background-color: var(--bg-deep);
            overflow: hidden;
        }

        .zenith-lint-veil {
            flex: 0 0 55%;
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 0 5% 0 10%;
            z-index: 5;
            position: relative;
        }

        .zenith-crest {
            font-size: clamp(32px, 5vw, 58px);
            line-height: 1.2;
            margin-bottom: 24px;
            font-weight: 700;
            background: linear-gradient(to right, #ffffff, #dcdcdc);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .zenith-lint {
            font-size: 19px;
            color: var(--text-dim);
            max-width: 600px;
            margin-bottom: 40px;
        }

        .zenith-clump {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .snap {
            display: inline-flex;
            align-items: center;
            padding: 16px 36px;
            background-color: var(--primary);
            color: white;
            text-decoration: none;
            border-radius: 50px;
            font-weight: 600;
            font-size: 17px;
            transition: var(--transition);
            box-shadow: 0 10px 30px var(--primary-glow);
        }

        .snap:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 40px var(--primary-glow);
            filter: brightness(1.1);
        }

        .zenith-lens-veil {
            position: absolute;
            right: 0;
            top: 0;
            width: 58%;
            height: 100%;
            z-index: 2;
            clip-path: polygon(25% 0, 100% 0, 100% 100%, 0% 100%);
        }

        .zenith-lens-veil::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, var(--bg-deep) 0%, transparent 40%);
        }

        .lens {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* 核心组件区 - Shale (Capability) */
        .shale-sphere {
            padding: 120px 40px;
            max-width: 1400px;
            margin: 0 auto;
        }

        .shale-crest-veil {
            text-align: center;
            margin-bottom: 80px;
        }

        .shale-crest {
            font-size: 42px;
            margin-bottom: 16px;
        }

        .shale-lint {
            color: var(--text-dim);
            font-size: 18px;
            max-width: 800px;
            margin: 0 auto;
        }

        .shale-matrix {
            display: flex;
            flex-wrap: wrap;
            gap: 30px;
            justify-content: center;
        }

        .folio {
            flex: 1;
            min-width: 320px;
            background: var(--surface);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: var(--radius);
            padding: 40px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .folio:hover {
            border-color: rgba(218, 30, 46, 0.3);
            transform: translateY(-8px);
        }

        .pica-veil {
            width: 64px;
            height: 64px;
            background: rgba(218, 30, 46, 0.1);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            color: var(--primary);
        }

        .folio-crest {
            font-size: 24px;
            margin-bottom: 16px;
        }

        .folio-lint {
            color: var(--text-dim);
            font-size: 15px;
            margin-bottom: 24px;
        }

        /* AI助手预览区 - Prime (Aside) */
        .prime-vault {
            background-color: #0d0d0d;
            padding: 100px 40px;
            position: relative;
            overflow: hidden;
        }

        .prime-casing {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            gap: 80px;
            flex-wrap: wrap;
        }

        .prime-lint-veil {
            flex: 1;
            min-width: 400px;
        }

        .prime-seam {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(218, 30, 46, 0.15);
            color: var(--primary);
            border-radius: 30px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .prime-clump {
            margin-top: 32px;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .prime-bead {
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }

        .prime-bead-pica {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            color: var(--primary);
        }

        .prime-bead-lint {
            font-size: 16px;
        }

        /* 模板库展示区 - Vista (Proof) */
        .vista-sphere {
            padding: 120px 40px;
            background: radial-gradient(circle at 10% 10%, rgba(218, 30, 46, 0.05), transparent 40%);
        }

        .vista-vault {
            max-width: 1300px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .vista-lens-veil {
            width: 100%;
            border-radius: var(--radius);
            overflow: hidden;
            margin-top: 60px;
            box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .vista-lens {
            width: 100%;
            display: block;
            transition: transform 0.8s ease;
        }

        .vista-lens-veil:hover .vista-lens {
            transform: scale(1.02);
        }

        /* 底部信息区域 - Stem & Bedrock */
        .stem {
            background-color: var(--bg-deep);
            padding: 80px 40px 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        .bedrock-vault {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 60px;
        }

        .bedrock-brand-veil {
            flex: 1;
            min-width: 280px;
        }

        .bedrock-crest {
            font-size: 24px;
            font-weight: 700;
            color: white;
            margin-bottom: 20px;
        }

        .bedrock-lint {
            color: var(--text-dim);
            font-size: 14px;
            line-height: 2;
        }

        .bedrock-clump {
            display: flex;
            gap: 80px;
            flex-wrap: wrap;
        }

        .bedrock-bead {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .bedrock-bead-crest {
            font-size: 16px;
            font-weight: 600;
            color: white;
        }

        .bedrock-node {
            text-decoration: none;
            color: var(--text-dim);
            font-size: 14px;
            transition: var(--transition);
        }

        .bedrock-node:hover {
            color: var(--primary);
        }

        .bedrock-ribbon {
            max-width: 1200px;
            margin: 60px auto 0;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            text-align: center;
            color: #555;
            font-size: 13px;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .zenith-lint-veil {
                padding: 0 40px;
            }
            .zenith-lens-veil {
                width: 50%;
            }
        }

        @media (max-width: 768px) {
            .orbit-vault {
                padding: 0 20px;
            }
            .orbit-ribbon {
                gap: 20px;
                padding: 8px 16px;
            }
            .spool {
                display: none; /* 移动端可隐藏或改为菜单按钮 */
            }
            .zenith-veil {
                flex-direction: column;
            }
            .zenith-lint-veil {
                flex: none;
                width: 100%;
                padding: 120px 30px 60px;
                text-align: center;
                align-items: center;
            }
            .zenith-crest {
                font-size: 36px;
            }
            .zenith-lens-veil {
                position: relative;
                width: 100%;
                height: 350px;
                clip-path: none;
            }
            .shale-crest {
                font-size: 30px;
            }
            .folio {
                min-width: 100%;
            }
            .prime-casing {
                flex-direction: column;
                gap: 40px;
            }
            .prime-lint-veil {
                min-width: 100%;
            }
        }

.nexus-apex{
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            padding: 20px 0;
        }

.nexus-apex .nexus-orbit-vault{
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 40px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

.nexus-apex .nexus-orbit-ribbon{
            background: rgba(20, 20, 20, 0.85);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 50px;
            padding: 8px 32px;
            display: flex;
            align-items: center;
            gap: 40px;
        }

.nexus-apex .nexus-glyph{
            height: 32px;
            display: flex;
            align-items: center;
        }

.nexus-apex .nexus-glyph img{
            height: 100%;
            width: auto;
        }

.nexus-apex .nexus-spool{
            display: flex;
            gap: 28px;
            list-style: none;
        }

.nexus-apex .nexus-node{
            color: #a0a0a0;
            text-decoration: none;
            font-size: 15px;
            font-weight: 500;
            transition: 0.25s ease;
        }

.nexus-apex .nexus-node:hover, .nexus-apex .nexus-node.active{
            color: #da1e2e;
        }

.nexus-apex .nexus-snap{
            display: inline-flex;
            align-items: center;
            padding: 16px 36px;
            background-color: #da1e2e;
            color: white;
            text-decoration: none;
            border-radius: 50px;
            font-weight: 600;
            font-size: 17px;
            transition: 0.25s ease;
            box-shadow: 0 10px 30px rgba(218, 30, 46, 0.4);
        }

.nexus-apex .nexus-snap:hover{
            transform: translateY(-3px);
            box-shadow: 0 15px 40px rgba(218, 30, 46, 0.4);
            filter: brightness(1.1);
        }

@media (max-width: 768px){.nexus-apex .nexus-orbit-vault{
                padding: 0 20px;
            }

.nexus-apex .nexus-orbit-ribbon{
                gap: 20px;
                padding: 8px 16px;
            }

.nexus-apex .nexus-spool{
                display: none; 
            }}

.echo-stem {
    font-family: "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
    line-height: 1.7;
    color: var(--text-main);
}
.echo-stem,
.echo-stem *,
.echo-stem *::before,
.echo-stem *::after {
    box-sizing: border-box;
}

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

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

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

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

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

.echo-stem{
            background-color: #050505;
            padding: 80px 40px 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

.echo-stem .echo-bedrock-vault{
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 60px;
        }

.echo-stem .echo-bedrock-brand-veil{
            flex: 1;
            min-width: 280px;
        }

.echo-stem .echo-bedrock-crest{
            font-size: 24px;
            font-weight: 700;
            color: white;
            margin-bottom: 20px;
        }

.echo-stem .echo-bedrock-lint{
            color: #a0a0a0;
            font-size: 14px;
            line-height: 2;
        }

.echo-stem .echo-bedrock-clump{
            display: flex;
            gap: 80px;
            flex-wrap: wrap;
        }

.echo-stem .echo-bedrock-bead{
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

.echo-stem .echo-bedrock-bead-crest{
            font-size: 16px;
            font-weight: 600;
            color: white;
        }

.echo-stem .echo-bedrock-node{
            text-decoration: none;
            color: #a0a0a0;
            font-size: 14px;
            transition: 0.25s ease;
        }

.echo-stem .echo-bedrock-node:hover{
            color: #da1e2e;
        }

.echo-stem .echo-bedrock-ribbon{
            max-width: 1200px;
            margin: 60px auto 0;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            text-align: center;
            color: #555;
            font-size: 13px;
        }