/* Reset & Base Variables */
:root {
    --bg: #07070a;
    --bg-alt: #0d0d14;
    --c-bg: #15151e;
    --accent: #f621ba;
    --accent-glow: rgba(246, 33, 186, 0.25);
    --text-main: #ffffff;
    --text-muted: rgba(255, 255, 255, 0.65);
    --border-light: rgba(255, 255, 255, 0.08);
    --radius: 8px;
    --radius-lg: 12px;
    --shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
    --transition: all 0.15s ease;
    --font-sys: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

body {
    background-color: var(--bg);
    color: var(--text-main);
    font-family: var(--font-sys);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

/* Flexbox utility */
.flex {
    display: flex;
    flex-wrap: wrap;
}

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

/* Text Wrapping utility */
.mist, .peak, .peak-huge {
    word-break: break-word;
    overflow-wrap: break-word;
}
.mist {
    word-break: keep-all;
}

/* --- Required Navigation Styles (Copied & Adapted for active state) --- */
.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 {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 72px;
    align-items: center;
    justify-content: space-between;
}

.sign img {
    height: 28px;
    display: block;
}

.stalk {
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
    align-items: center;
}
.stalk > * {
    min-width: 0;
}

.path {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-muted);
}

.path:hover,
.path.active {
    color: var(--text-main);
}

.path.active {
    position: relative;
    color: var(--accent);
}

.path.active::after {
    content: '';
    position: absolute;
    bottom: -24px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--accent);
    border-radius: 3px 3px 0 0;
}

/* --- Hero Section (split_diagonal variation) --- */
.intro-fold {
    position: relative;
    padding: 120px 24px 80px;
    min-height: 85vh;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    overflow: hidden;
}

.intro-fold::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: radial-gradient(circle at 70% 30%, rgba(246, 33, 186, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.aura {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 60px;
    position: relative;
    z-index: 1;
}

.aura-fold {
    flex: 1 1 500px;
    min-width: 0;
}

.peak-huge {
    color: var(--text-main);
    font-weight: 700;
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
    white-space: normal;
}

.peak-huge span {
    color: var(--accent);
}

.mist-lead {
    font-size: clamp(1.1rem, 2vw, 1.25rem);
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 480px;
    line-height: 1.6;
}

.knot-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.pulse {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 36px;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    font-size: 16px;
    border-radius: var(--radius);
    box-shadow: var(--accent-glow);
    border: 1px solid rgba(255, 255, 255, 0.1);
    cursor: pointer;
    transform: translateY(0);
}

.pulse:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(246, 33, 186, 0.35);
}

.pulse-alt {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 36px;
    background: transparent;
    color: var(--text-main);
    font-weight: 600;
    font-size: 16px;
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
    cursor: pointer;
}

.pulse-alt:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Diagonal Visual Construct */
.aura-visual {
    flex: 1 1 400px;
    position: relative;
    height: 400px;
    perspective: 1000px;
    min-width: 0;
}

.visual-core {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--c-bg), var(--bg-alt));
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    transform: rotateY(-15deg) rotateX(5deg) translateZ(0);
    box-shadow: -20px 20px 40px rgba(0,0,0,0.6);
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.aura-visual:hover .visual-core {
    transform: rotateY(-5deg) rotateX(2deg) translateZ(20px);
}

.belt-input {
    background: var(--bg);
    border: 1px solid var(--border-light);
    border-radius: 6px;
    padding: 16px;
    font-family: monospace;
    color: var(--text-muted);
    font-size: 18px;
    display: flex;
    align-items: center;
}
.belt-input::after {
    content: '|';
    color: var(--accent);
    animation: blink 1s infinite;
    margin-left: 4px;
}

.knot-candidates {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.leaf-candidate {
    background: rgba(246, 33, 186, 0.1);
    border: 1px solid rgba(246, 33, 186, 0.2);
    color: var(--text-main);
    padding: 10px 20px;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}
.leaf-candidate span {
    color: var(--accent);
    font-size: 12px;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* --- Features Section (Category Showcase) --- */
.acquire-fold {
    padding: 100px 24px;
    background: var(--bg-alt);
    position: relative;
}

.vista {
    max-width: 1200px;
    margin: 0 auto;
}

.peak-nest {
    font-size: clamp(2rem, 3vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    color: var(--text-main);
    white-space: normal;
}

.mist-desc {
    text-align: center;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 60px;
    font-size: 1.1rem;
}

.knot-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.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;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.shard::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0;
    transition: var(--transition);
}

.shard:hover {
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: var(--shadow);
}

.shard:hover::before {
    opacity: 1;
}

.seed-wrap {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: rgba(246, 33, 186, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    border: 1px solid rgba(246, 33, 186, 0.1);
}

.seed {
    width: 32px;
    height: 32px;
    color: var(--accent);
}

.peak-glyph {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 16px;
    white-space: normal;
}

.mist-glyph {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 30px;
    flex-grow: 1;
}

.spark-path {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-main);
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
}

.spark-path::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: var(--transition);
}

.shard:hover .spark-path::after {
    width: 100%;
}

.spark-path svg {
    width: 16px;
    height: 16px;
    transition: transform 0.2s ease;
}

.shard:hover .spark-path svg {
    transform: translateX(4px);
    color: var(--accent);
}

/* --- Closing Section (Trend Update) --- */
.closing-fold {
    padding: 100px 24px;
    background: var(--bg);
}

.nest-trends {
    max-width: 1000px;
    margin: 0 auto;
    text-align: center;
}

.knot-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    margin-top: 50px;
}

.belt-tag {
    background: var(--c-bg);
    border: 1px solid var(--border-light);
    padding: 12px 24px;
    border-radius: 30px;
    font-size: 1rem;
    color: var(--text-muted);
    transition: var(--transition);
    cursor: default;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.belt-tag:hover {
    color: var(--text-main);
    border-color: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

.belt-tag.hot {
    border-color: rgba(246, 33, 186, 0.3);
    color: var(--text-main);
    background: rgba(246, 33, 186, 0.05);
}

.belt-tag.hot svg {
    width: 16px;
    height: 16px;
    color: var(--accent);
}

/* --- Footer --- */
.root {
    border-top: 1px solid var(--border-light);
    padding: 60px 24px;
    background: var(--bg-alt);
}

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

.mist-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-main);
}

.knot-links {
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
}

.path-root {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.path-root:hover {
    color: var(--text-main);
}

.mist-mist {
    color: var(--text-muted);
    font-size: 0.85rem;
    width: 100%;
    text-align: center;
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.05);
}

/* Responsive */
@media (max-width: 768px) {
    .stalk {
        display: none; /* Hide desktop [role="navigation"] on mobile, assume JS handles hamburger in real site */
    }
    .intro-fold {
        padding: 100px 20px 60px;
    }
    .aura {
        flex-direction: column;
        text-align: center;
        gap: 40px;
    }
    .mist-lead {
        margin: 0 auto 30px;
    }
    .knot-actions {
        justify-content: center;
    }
    .aura-visual {
        width: 100%;
        height: 300px;
    }
    .visual-core {
        transform: rotateY(0) rotateX(0);
    }
    .aura-visual:hover .visual-core {
        transform: translateY(-5px);
    }
    .knot-grid {
        grid-template-columns: 1fr;
    }
    .echo {
        flex-direction: column;
        text-align: center;
    }
    .knot-links {
        justify-content: center;
    }
}

.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;
        }