:root {
            --primary: #ea8633;
            --primary-soft: #fff5eb;
            --accent: #202124;
            --bedrock-bg: #f8f9fa;
            --radius: 19px;
            --shadow: 0 12px 30px rgba(0,0,0,0.06);
            --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
        }

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

        body {
            font-family: var(--font-main);
            line-height: 1.7;
            color: #3c4043;
            background-color: #ffffff;
            overflow-x: hidden;
        }

        /* 导航区域 */
        .veneer {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
        }

        .orbit {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
            height: 72px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
        }

        .sigil {
            display: flex;
            align-items: center;
        }

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

        .strand {
            display: flex;
            gap: 1.5rem;
            flex-wrap: wrap;
        }

        .tether {
            text-decoration: none;
            color: #5f6368;
            font-size: 0.95rem;
            font-weight: 500;
            transition: color 0.25s ease;
            position: relative;
        }

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

        .tether.active::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 0;
            width: 100%;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
        }

        .trigger .spark {
            text-decoration: none;
            background: var(--primary);
            color: white;
            border-radius: 50px;
            font-weight: 600;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            display: inline-block;
            box-shadow: 0 4px 12px rgba(234, 134, 51, 0.2);
        }

        .trigger .spark:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(234, 134, 51, 0.3);
        }

        /* 主内容容器 */
        .vault {
            display: block;
            width: 100%;
        }

        /* 第一阶段：内置安全技术 (Hero/Intro) */
        .glimmer {
            padding: 5rem 2rem;
            background: linear-gradient(135deg, #fff 0%, #fffbf8 100%);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            min-height: 80vh;
            gap: 4rem;
        }

        .glimmer > .cluster {
            flex: 1;
            min-width: 320px;
            max-width: 550px;
        }

        .apex-huge {
            font-size: clamp(2.5rem, 5vw, 3.8rem);
            line-height: 1.1;
            color: var(--accent);
            letter-spacing: -1.5px;
            margin-bottom: 1.5rem;
            word-break: keep-all;
        }

        .etch-prominent {
            font-size: 1.25rem;
            color: #5f6368;
            margin-bottom: 2.5rem;
            word-break: break-word;
        }

        .lens-frame {
            flex: 1;
            min-width: 320px;
            max-width: 650px;
            position: relative;
        }

        .lens-frame img {
            width: 100%;
            border-radius: var(--radius);
            box-shadow: var(--shadow);
            border: 8px solid white;
        }

        /* 第二阶段：无痕浏览 (Capability) */
        .vista {
            padding: 6rem 2rem;
            background-color: var(--bedrock-bg);
            text-align: center;
        }

        .vista .apex {
            font-size: 2.5rem;
            margin-bottom: 4rem;
            color: var(--accent);
        }

        .ribbon {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            max-width: 1200px;
            margin: 0 auto;
        }

        .shard {
            background: #ffffff;
            padding: 3rem 2rem;
            border-radius: var(--radius);
            transition: transform 0.25s ease;
            display: flex;
            flex-direction: column;
            align-items: center;
            border: 1px solid rgba(0,0,0,0.03);
        }

        .shard:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow);
        }

        .glyph-box {
            width: 80px;
            height: 80px;
            background: var(--primary-soft);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
        }

        .glyph-box svg {
            width: 40px;
            height: 40px;
            fill: var(--primary);
        }

        .shard h3 {
            font-size: 1.5rem;
            margin-bottom: 1rem;
            color: var(--accent);
        }

        .shard p {
            font-size: 1rem;
            color: #5f6368;
            word-break: break-word;
        }

        /* 第三阶段：密码管理 (Steps) */
        .casing {
            padding: 7rem 2rem;
            max-width: 1100px;
            margin: 0 auto;
        }

        .crest {
            margin-bottom: 4rem;
            text-align: left;
        }

        .crest h2 {
            font-size: 2.8rem;
            color: var(--accent);
            margin-bottom: 1rem;
        }

        .crest p {
            font-size: 1.1rem;
            max-width: 700px;
        }

        .pathway {
            display: flex;
            flex-direction: column;
            gap: 3rem;
        }

        .node {
            display: flex;
            flex-wrap: wrap;
            gap: 3rem;
            align-items: center;
            padding: 2.5rem;
            background: #ffffff;
            border-radius: var(--radius);
            border: 1px solid #f1f3f4;
        }

        .node:nth-child(even) {
            flex-direction: row-reverse;
        }

        .index {
            font-size: 4rem;
            font-weight: 800;
            color: var(--primary-soft);
            line-height: 1;
            flex-shrink: 0;
        }

        .node-etch {
            flex: 1;
            min-width: 280px;
        }

        .node-etch h4 {
            font-size: 1.6rem;
            margin-bottom: 1rem;
            color: var(--accent);
        }

        /* 页脚区域 */
        .echo {
            background-color: var(--accent);
            color: #9aa0a6;
            padding: 5rem 2rem 3rem;
        }

        .anchor {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 4rem;
            border-bottom: 1px solid #3c4043;
            padding-bottom: 4rem;
        }

        .echo-brand h5 {
            color: #ffffff;
            font-size: 1.8rem;
            margin-bottom: 1.5rem;
        }

        .echo-links {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 3rem;
        }

        .echo-cluster h6 {
            color: #ffffff;
            font-size: 1rem;
            margin-bottom: 1.5rem;
        }

        .echo-cluster ul {
            list-style: none;
        }

        .echo-cluster li {
            margin-bottom: 0.8rem;
        }

        .echo-cluster a {
            color: #9aa0a6;
            text-decoration: none;
            transition: color 0.2s;
        }

        .echo-cluster a:hover {
            color: #ffffff;
        }

        .trace {
            max-width: 1200px;
            margin: 2rem auto 0;
            font-size: 0.85rem;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 1rem;
        }

        /* 响应式适配 */
        @media (max-width: 768px) {
            .orbit {
                height: auto;
                padding: 1rem;
            }
            .strand {
                order: 3;
                width: 100%;
                justify-content: center;
                margin-top: 1rem;
            }
            .glimmer {
                padding: 3rem 1.5rem;
            }
            .node {
                padding: 1.5rem;
                text-align: center;
            }
            .node:nth-child(even) {
                flex-direction: row;
            }
            .echo-links {
                grid-template-columns: 1fr;
            }
        }

.orbit-veneer{
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid #eee;
        }

.orbit-veneer .orbit-orbit{
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            max-width: 1400px;
            margin: 0 auto;
            padding: 1rem 5%;
        }

.orbit-veneer .orbit-sigil{
            display: flex;
            align-items: center;
        }

.orbit-veneer .orbit-sigil img{
            height: 36px;
            width: auto;
        }

.orbit-veneer .orbit-strand{
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
        }

.orbit-veneer .orbit-tether{
            text-decoration: none;
            color: #3c4043;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.25s ease;
            position: relative;
        }

.orbit-veneer .orbit-tether:hover, .orbit-veneer .orbit-tether.active{
            color: #ea8633;
        }

.orbit-veneer .orbit-tether.active::after{
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #ea8633;
        }

.orbit-veneer .orbit-trigger{
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
        }

.orbit-veneer .orbit-spark{
            display: inline-flex;
            align-items: center;
            padding: 1rem 2.5rem;
            background: #ea8633;
            color: white;
            text-decoration: none;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.1rem;
            transition: transform 0.25s ease, box-shadow 0.25s ease;
            box-shadow: 0 8px 20px rgba(234, 134, 51, 0.3);
        }

.orbit-veneer .orbit-spark:hover{
            transform: translateY(-3px);
            box-shadow: 0 12px 25px rgba(234, 134, 51, 0.4);
        }

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

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

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

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

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

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

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

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

.anchor-trace .anchor-strand{
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
        }

.anchor-trace .anchor-tether{
            text-decoration: none;
            color: #3c4043;
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.25s ease;
            position: relative;
        }

.anchor-trace .anchor-tether:hover, .anchor-trace .anchor-tether.active{
            color: #ea8633;
        }

.anchor-trace .anchor-tether.active::after{
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #ea8633;
        }

.anchor-trace .anchor-sheath{
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 5%;
        }

.anchor-trace .anchor-etch-body{
            color: #5f6368;
            font-size: 1rem;
        }

.anchor-trace{
            background: #f8f9fa;
            padding: 5rem 0 2rem;
            margin-top: 6rem;
        }

.anchor-trace .anchor-anchor-cluster{
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 3rem;
            margin-bottom: 4rem;
        }

.anchor-trace .anchor-apex-small{
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 1.5rem;
            color: #5f6368;
        }

.anchor-trace .anchor-echo-bottom{
            border-top: 1px solid #ddd;
            padding-top: 2rem;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            font-size: 0.85rem;
            color: #5f6368;
        }

.anchor-trace .anchor-node-strand{
            list-style: none;
        }

.anchor-trace .anchor-node-strand li{
            margin-bottom: 0.8rem;
        }

.anchor-trace .anchor-node-strand a{
            text-decoration: none;
            color: #3c4043;
            transition: color 0.2s;
        }

.anchor-trace .anchor-node-strand a:hover{
            color: #ea8633;
        }

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