:root {
            --accent: #df3f3f;
            --accent-soft: rgba(223, 63, 63, 0.1);
            --text: #1a1a1a;
            --text-dim: #666;
            --bg: #fdfdfd;
            --surface: #ffffff;
            --radius: 14px;
            --shadow: 0 10px 30px rgba(0,0,0,0.05);
            --transition: 0.15s ease;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text);
            background-color: var(--bg);
            line-height: 1.7;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* --- 导航栏复用结构 --- */
        .vortex {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(10px);
            z-index: 1000;
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

        .orbit {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 2rem;
            height: 80px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

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

        .strand {
            display: flex;
            gap: 2.5rem;
        }

        .tether {
            text-decoration: none;
            color: var(--text);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
            position: relative;
        }

        .tether:hover, .tether.active {
            color: var(--accent);
        }

        .tether.active::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--accent);
        }

        /* --- 主内容布局 --- */
        .matrix {
            width: 100%;
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        /* --- Section 1: Zenith (Intro) --- */
        .zenith {
            padding: 10rem 0 6rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 4rem;
        }

        .flare-veil {
            flex: 1;
            min-width: 320px;
        }

        .apex-huge {
            font-size: clamp(2.5rem, 6vw, 4.5rem);
            line-height: 1.1;
            font-weight: 800;
            letter-spacing: -0.03em;
            color: #0a0a0a;
            margin-bottom: 2rem;
            word-break: break-word;
        }

        .echo-lead {
            font-size: 1.25rem;
            color: var(--text-dim);
            max-width: 600px;
            margin-bottom: 3rem;
        }

        .plexus-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 3rem;
        }

        .bead-stat {
            min-width: 140px;
        }

        .apex-stat {
            display: block;
            font-size: 2rem;
            font-weight: 700;
            color: var(--accent);
        }

        .echo-stat {
            font-size: 0.9rem;
            color: var(--text-dim);
            text-transform: uppercase;
            letter-spacing: 0.1em;
        }

        /* --- Section 2: Portal (Optimization Article) --- */
        .portal {
            padding: 8rem 0;
            background: #fff;
            border-radius: 40px;
            margin: 2rem 0;
            border: 1px solid rgba(0,0,0,0.03);
            box-shadow: var(--shadow);
        }

        .apex-mid {
            font-size: 2.5rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 5rem;
            letter-spacing: -0.01em;
        }

        .veil-article {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
            gap: 4rem;
            padding: 0 4rem;
        }

        .node-article {
            min-width: 0;
        }

        .glyph-box {
            width: 56px;
            height: 56px;
            background: var(--accent-soft);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            color: var(--accent);
        }

        .glyph-box svg {
            width: 28px;
            height: 28px;
        }

        .apex-sub {
            font-size: 1.5rem;
            font-weight: 600;
            margin-bottom: 1rem;
        }

        .echo-article {
            color: var(--text-dim);
            font-size: 1.05rem;
            margin-bottom: 1.5rem;
        }

        .ribbon-tag {
            display: inline-block;
            padding: 0.4rem 1rem;
            background: #f5f5f5;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text);
            margin-right: 0.5rem;
            margin-bottom: 0.5rem;
        }

        /* --- Section 3: Aura (Expert Tips) --- */
        .aura {
            padding: 8rem 0;
        }

        .vault-glass {
            background: rgba(255, 255, 255, 0.7);
            border: 1px solid rgba(223, 63, 63, 0.1);
            border-radius: 24px;
            padding: 4rem;
            display: flex;
            flex-wrap: wrap;
            gap: 4rem;
        }

        .veil-tip {
            flex: 1;
            min-width: 300px;
        }

        .apex-tip {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
            color: var(--accent);
        }

        .plexus-strand {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .bead-pro {
            display: flex;
            gap: 1rem;
        }

        .glyph-bullet {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            color: var(--accent);
        }

        .echo-pro strong {
            display: block;
            color: var(--text);
            margin-bottom: 0.2rem;
        }

        .echo-pro span {
            font-size: 0.95rem;
            color: var(--text-dim);
        }

        /* --- CTA --- */
        .warp-zone {
            padding: 6rem 0;
            text-align: center;
        }

        .pulse-primary {
            display: inline-block;
            padding: 1.2rem 3.5rem;
            background: var(--accent);
            color: white;
            text-decoration: none;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.1rem;
            box-shadow: 0 15px 30px rgba(223, 63, 63, 0.2);
            transition: transform 0.2s, box-shadow 0.2s;
        }

        .pulse-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 20px 40px rgba(223, 63, 63, 0.3);
        }

        /* --- Footer --- */
        .strata {
            background: #111;
            color: #fff;
            padding: 6rem 0 3rem;
        }

        .depth-grid {
            max-width: 1300px;
            margin: 0 auto;
            padding: 0 2rem;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 4rem;
            border-bottom: 1px solid rgba(255,255,255,0.05);
            padding-bottom: 4rem;
        }

        .apex-depth {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 2rem;
            color: #fff;
        }

        .strand-depth {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .tether-depth {
            color: #888;
            text-decoration: none;
            transition: var(--transition);
        }

        .tether-depth:hover {
            color: var(--accent);
        }

        .datum-base {
            max-width: 1300px;
            margin: 2rem auto 0;
            padding: 0 2rem;
            text-align: center;
            color: #555;
            font-size: 0.85rem;
        }

        /* --- Responsive --- */
        @media (max-width: 1024px) {
            .veil-article {
                padding: 0 2rem;
            }
        }

        @media (max-width: 768px) {
            .strand {
                display: none;
            }
            .zenith {
                padding-top: 8rem;
                text-align: center;
            }
            .echo-lead {
                margin-left: auto;
                margin-right: auto;
            }
            .plexus-stats {
                justify-content: center;
            }
            .vault-glass {
                padding: 2rem;
            }
            .veil-article {
                grid-template-columns: 1fr;
            }
        }

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

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

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

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

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

.vortex-vortex a.vortex-tether {
    --aisite-shell-nav-padding: 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;
}

.vortex-vortex a.vortex-tether,
.vortex-vortex a.vortex-tether:hover,
.vortex-vortex a.vortex-tether:focus,
.vortex-vortex a.vortex-tether:active,
.vortex-vortex a.vortex-tether.active,
.vortex-vortex a.vortex-tether[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);
}

.vortex-vortex{
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.8);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

.vortex-vortex .vortex-orbit{
            max-width: 1300px;
            margin: 0 auto;
            padding: 1.2rem 2rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
        }

.vortex-vortex .vortex-sigil{
            display: flex;
            align-items: center;
            min-width: 0;
        }

.vortex-vortex .vortex-sigil img{
            height: 32px;
            width: auto;
        }

.vortex-vortex .vortex-strand{
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            list-style: none;
        }

.vortex-vortex .vortex-tether{
            text-decoration: none;
            color: #1a1a1a;
            font-weight: 500;
            font-size: 0.95rem;
            transition: 0.15s ease;
            position: relative;
        }

.vortex-vortex .vortex-tether:hover, .vortex-vortex .vortex-tether.active{
            color: #df3f3f;
        }

.vortex-vortex .vortex-tether.active::after{
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #df3f3f;
        }

@media (max-width: 768px){.vortex-vortex .vortex-strand{
                display: none; 
            }

.vortex-vortex .vortex-orbit{
                justify-content: center;
            }}

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

.datum-strata {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.7;
    word-break: keep-all;
    color: var(--text);
}
.datum-strata,
.datum-strata *,
.datum-strata *::before,
.datum-strata *::after {
    box-sizing: border-box;
}

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

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

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

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

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

.datum-strata{
            background: #fff;
            padding: 4rem 2rem;
            border-top: 1px solid rgba(0,0,0,0.05);
        }

.datum-strata .datum-abyss{
            max-width: 1300px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 3rem;
        }

.datum-strata .datum-datum-brand{
            flex: 1;
            min-width: 250px;
        }

.datum-strata .datum-datum-links{
            display: flex;
            flex-wrap: wrap;
            gap: 4rem;
        }

.datum-strata .datum-plexus-strand{
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 0.8rem;
        }

.datum-strata .datum-plexus-strand h4{
            margin-bottom: 1rem;
            font-size: 1.1rem;
        }

.datum-strata .datum-bead-depth a{
            text-decoration: none;
            color: #666;
            transition: 0.15s ease;
        }

.datum-strata .datum-bead-depth a:hover{
            color: #df3f3f;
        }

.datum-strata .datum-datum-copyright{
            margin-top: 4rem;
            padding-top: 2rem;
            border-top: 1px solid rgba(0,0,0,0.05);
            text-align: center;
            color: #999;
            font-size: 0.9rem;
            width: 100%;
        }