:root {
    --bg: #07070a;
    --bg-alt: #0d0d14;
    --c-bg: #15151e;
    --accent: #f621ba;
    --accent-hover: #ff45cb;
    --text-main: #ffffff;
    --text-muted: rgba(255, 255, 255, 0.65);
    --border-light: rgba(255, 255, 255, 0.06);
    --border-strong: rgba(255, 255, 255, 0.12);
    --radius: 8px;
    --radius-lg: 16px;
    --shadow: 0 8px 30px rgba(0,0,0,0.4);
    --shadow-accent: 0 4px 20px rgba(246, 33, 186, 0.25);
    --transition: 0.15s ease;
}

*, *::before, *::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--bg);
    color: var(--text-main);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.7;
    word-break: break-word;
    overflow-wrap: break-word;
    -webkit-font-smoothing: antialiased;
}

/* Flexbox Defaults */
.flex {
    display: flex;
    flex-wrap: wrap;
}
.flex > * {
    min-width: 0;
}

/* Typography */
.peak-huge {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin: 0 0 20px 0;
    white-space: normal;
}
.peak-large {
    font-size: clamp(2rem, 3vw, 2.5rem);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin: 0 0 16px 0;
    white-space: normal;
}
.peak-medium {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0 0 10px 0;
    white-space: normal;
}
.mist {
    color: var(--text-muted);
    font-size: 1.125rem;
    margin: 0 0 30px 0;
    word-break: keep-all;
}
.mist-small {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin: 0;
}

/* Layout Containers */
.fold {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}
.pad-y {
    padding-top: 100px;
    padding-bottom: 100px;
}

/* Navigation (Strict Copy + Active Adjustment) */
.cap {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(7, 7, 10, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
}
.orbit {
    padding: 16px 24px;
    align-items: center;
    justify-content: space-between;
    max-width: 1240px;
    margin: 0 auto;
}
.sign img {
    height: 32px;
    display: block;
}
.stalk {
    display: flex;
    gap: 32px;
    align-items: center;
}
.path {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: var(--transition);
}
.path:hover,
.path.active {
    color: var(--text-main);
}
.path.active {
    position: relative;
}
.path.active::after {
    content: '';
    position: absolute;
    bottom: -24px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent);
}

/* Components */
.pulse {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px 36px;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    font-size: 1.1rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-accent);
    border: 1px solid rgba(255,255,255,0.1);
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
}
.pulse:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(246, 33, 186, 0.4);
}
.spark {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(255,255,255,0.05);
    color: var(--text-main);
    font-weight: 500;
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
}
.spark:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--border-strong);
}

.shard {
    background: var(--c-bg);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 40px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.shard:hover {
    border-color: rgba(255,255,255,0.15);
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

/* Hero Section (Diagonal Split) */
.aura {
    position: relative;
    min-height: 85vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    background: var(--bg);
}
.aura::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 60%;
    background: linear-gradient(135deg, var(--bg-alt) 0%, #12121b 100%);
    clip-path: polygon(15% 0, 100% 0, 100% 100%, 0% 100%);
    z-index: 0;
}
.aura-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    width: 100%;
}
.aura-mist {
    max-width: 500px;
}
.aura-tint-knot {
    position: relative;
    height: 500px;
    perspective: 1000px;
}
.tint-nest {
    position: absolute;
    top: 50%;
    right: 0;
    transform: translateY(-50%) rotateY(-5deg);
    width: 80%;
    border-radius: var(--radius);
    box-shadow: 0 25px 60px rgba(0,0,0,0.8);
    border: 1px solid var(--border-strong);
    transition: transform 0.5s ease;
}
.tint-float {
    position: absolute;
    top: 20%;
    left: 0;
    width: 50%;
    border-radius: var(--radius);
    box-shadow: 0 15px 40px rgba(0,0,0,0.6);
    border: 1px solid var(--border-strong);
    transform: translateZ(50px);
    animation: float 6s ease-in-out infinite;
}
@keyframes float {
    0% { transform: translateZ(50px) translateY(0px); }
    50% { transform: translateZ(50px) translateY(-15px); }
    100% { transform: translateZ(50px) translateY(0px); }
}

/* Platform Matrix (Comparison) */
.vista {
    background: var(--bg-alt);
    border-top: 1px solid var(--border-light);
}
.matrix-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 40px;
}
.seed {
    width: 48px;
    height: 48px;
    background: rgba(255,255,255,0.05);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    border: 1px solid var(--border-light);
    color: var(--text-main);
}
.seed svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

/* Timeline (Changelog) */
.nest-timeline {
    background: var(--bg);
}
.timeline-belt {
    position: relative;
    max-width: 800px;
    margin: 40px auto 0;
    padding-left: 40px;
}
.timeline-belt::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 11px;
    width: 2px;
    background: var(--border-light);
}
.timeline-leaf {
    position: relative;
    padding-bottom: 40px;
}
.timeline-leaf::before {
    content: '';
    position: absolute;
    left: -33px;
    top: 6px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--bg);
    border: 2px solid var(--accent);
    z-index: 2;
    transition: var(--transition);
}
.timeline-leaf:hover::before {
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent);
}
.timeline-date {
    font-family: monospace;
    color: var(--accent);
    font-size: 0.9rem;
    margin-bottom: 8px;
    display: block;
}

/* Footer */
.root {
    background: var(--bg-alt);
    border-top: 1px solid var(--border-light);
    padding: 60px 0 40px;
}
.root-grid {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 40px;
    margin-bottom: 30px;
}
.root-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
}

/* Responsive */
@media (max-width: 1024px) {
    .aura-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .aura::before {
        width: 100%;
        clip-path: polygon(0 0, 100% 0, 100% 100%, 0 80%);
        bottom: 40%;
    }
    .aura-mist {
        max-width: 100%;
        text-align: center;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .tint-nest {
        width: 90%;
        left: 5%;
        right: auto;
        transform: translateY(-50%);
    }
}
@media (max-width: 768px) {
    .stalk {
        display: none; /* Simplification for mobile [role="navigation"] structure */
    }
    .peak-huge {
        font-size: 2.2rem;
    }
    .pad-y {
        padding-top: 60px;
        padding-bottom: 60px;
    }
    .matrix-grid {
        grid-template-columns: 1fr;
    }
    .root-grid {
        flex-direction: column;
        gap: 30px;
    }
}

.pinyin-cap .pinyin-flex{ display: flex; flex-wrap: wrap; }

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

.pinyin-cap{
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(7, 7, 10, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255,255,255,0.05);
        }

.pinyin-cap .pinyin-orbit{
            max-width: 1400px;
            margin: 0 auto;
            padding: 16px 4vw;
            justify-content: space-between;
            align-items: center;
        }

.pinyin-cap .pinyin-sign{
            display: flex;
            align-items: center;
        }

.pinyin-cap .pinyin-sign img{
            height: 34px;
            width: auto;
            display: block;
        }

.pinyin-cap .pinyin-stalk{
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            align-items: center;
        }

.pinyin-cap .pinyin-path{
            color: #a1a1aa;
            text-decoration: none;
            font-size: 0.95rem;
            font-weight: 500;
            transition: 0.15s ease;
            position: relative;
        }

.pinyin-cap .pinyin-path:hover, .pinyin-cap .pinyin-path.active{
            color: #f621ba;
        }

.pinyin-cap .pinyin-path.active::after{
            content: '';
            position: absolute;
            bottom: -6px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background-color: #f621ba;
            border-radius: 2px;
        }

@media (max-width: 768px){.pinyin-cap .pinyin-stalk{ display: none;  }

.pinyin-cap .pinyin-orbit{ flex-direction: column; align-items: flex-start; gap: 20px; }

.pinyin-cap .pinyin-stalk{ display: flex; overflow-x: auto; width: 100%; padding-bottom: 10px; gap: 20px; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; }

.pinyin-cap .pinyin-stalk > *{ flex-shrink: 0; }}

.pinyin-cap {
    background: rgb(7, 7, 10);
    background-image: none;
}

.echo-root {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.7;
    color: var(--t1);
}
.echo-root,
.echo-root *,
.echo-root *::before,
.echo-root *::after {
    box-sizing: border-box;
}

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

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

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

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

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

.echo-root{
            background: #040406;
            padding: 80px 4vw 40px;
            border-top: 1px solid rgba(255,255,255,0.05);
        }

.echo-root .echo-root-inner{
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            gap: 60px;
            justify-content: space-between;
        }

.echo-root .echo-root-brand{
            flex: 1 1 300px;
        }

.echo-root .echo-peak-brand{
            font-size: 1.5rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

.echo-root .echo-mist-brand{
            color: #71717a;
            font-size: 0.9rem;
            max-width: 300px;
        }

.echo-root .echo-root-links{
            display: flex;
            flex-wrap: wrap;
            gap: 60px;
        }

.echo-root .echo-knot-col{
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

.echo-root .echo-peak-col{
            color: #ffffff;
            font-size: 1rem;
            margin-bottom: 8px;
        }

.echo-root .echo-path-foot{
            color: #71717a;
            text-decoration: none;
            font-size: 0.9rem;
            transition: 0.15s ease;
        }

.echo-root .echo-path-foot:hover{
            color: #f621ba;
        }

.echo-root .echo-root-bottom{
            max-width: 1400px;
            margin: 40px auto 0;
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.05);
            text-align: center;
            color: #71717a;
            font-size: 0.85rem;
        }