:root {
            --primary: #ef7523;
            --primary-glow: rgba(239, 117, 35, 0.3);
            --bg-deep: #060709;
            --bg-surface: #0e1116;
            --bg-elevated: #161a22;
            --text-main: #f4f5f6;
            --text-muted: #9aa0a6;
            --radius-lg: 22px;
            --radius-md: 16px;
            --radius-sm: 8px;
            --transition: 0.15s ease;
        }

        *, *::before, *::after {
            box-sizing: border-box;
            min-width: 0; /* Flexbox constraint */
        }

        body {
            margin: 0;
            padding: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
            background-color: var(--bg-deep);
            color: var(--text-main);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        /* Typography constraints */
        h1, h2, h3, p {
            margin: 0;
            word-break: break-word;
            overflow-wrap: break-word;
        }
        
        p {
            word-break: keep-all; /* Better for Chinese */
        }

        a {
            text-decoration: none;
            color: inherit;
        }

        /* Layout Primitives */
        .den {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        .herd {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
        }

        /* Header (Direct Reuse) */
        .crown {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(6, 7, 9, 0.8);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .crown-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

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

        .snout img {
            height: 28px;
            width: auto;
        }

        .sniff {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            align-items: center;
        }

        .bind {
            color: var(--text-muted);
            font-size: 0.95rem;
            font-weight: 500;
            transition: color var(--transition);
            position: relative;
        }

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

        .bind.active::after {
            content: '';
            position: absolute;
            bottom: -24px;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: var(--primary);
            border-radius: 2px 2px 0 0;
        }

        /* Main Container */
        .pack {
            padding-top: 72px;
            display: flex;
            flex-direction: column;
            gap: 6rem;
            padding-bottom: 6rem;
        }

        /* Typography Classes */
        .howl-max {
            font-size: clamp(2.5rem, 5vw, 4rem);
            font-weight: 900;
            letter-spacing: -0.03em;
            line-height: 1.1;
            white-space: normal;
            color: var(--text-main);
            margin-bottom: 1.5rem;
        }

        .howl {
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.2;
            white-space: normal;
            margin-bottom: 1rem;
        }

        .howl-sub {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .char {
            font-size: 1.125rem;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .char-lg {
            font-size: 1.25rem;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 2.5rem;
        }

        /* Buttons */
        .tap {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0.875rem 2rem;
            background: var(--primary);
            color: #fff;
            font-weight: 600;
            font-size: 1rem;
            border-radius: var(--radius-md);
            box-shadow: 0 4px 20px var(--primary-glow), inset 0 1px 0 rgba(255,255,255,0.2);
            transition: all var(--transition);
            cursor: pointer;
            border: none;
        }

        .tap:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 25px rgba(239, 117, 35, 0.4), inset 0 1px 0 rgba(255,255,255,0.2);
        }

        .tap-ghost {
            background: rgba(255,255,255,0.05);
            box-shadow: inset 0 0 0 1px rgba(255,255,255,0.1);
        }
        
        .tap-ghost:hover {
            background: rgba(255,255,255,0.1);
            box-shadow: inset 0 0 0 1px rgba(255,255,255,0.2);
        }

        /* Surface/Card Mixins */
        .overlapping-offset {
            background: rgba(14, 17, 22, 0.65);
            backdrop-filter: blur(30px);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.06);
            box-shadow: 0 40px 100px rgba(0,0,0,0.9), inset 0 1px 0 rgba(255,255,255,0.1);
            padding: 4rem;
        }

        .paw {
            background: var(--bg-surface);
            border-radius: var(--radius-md);
            padding: 2.5rem;
            border: 1px solid rgba(255, 255, 255, 0.04);
            transition: transform var(--transition), border-color var(--transition);
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            position: relative;
            overflow: hidden;
        }

        .paw:hover {
            transform: translateY(-5px);
            border-color: rgba(239, 117, 35, 0.3);
        }

        /* Icons */
        .mark {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(239, 117, 35, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            border: 1px solid rgba(239, 117, 35, 0.2);
        }

        .mark svg {
            width: 24px;
            height: 24px;
            fill: currentColor;
        }

        /* Section 1: Hero (Article) */
        .bark {
            padding: 8rem 0 4rem;
            position: relative;
        }

        .bark .herd {
            align-items: center;
            justify-content: space-between;
        }

        .bark-pelt {
            flex: 1 1 500px;
            max-width: 600px;
            z-index: 2;
        }

        .bark-gaze {
            flex: 1 1 400px;
            position: relative;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 400px;
        }

        /* Abstract SVG Motion Carrier */
        .motion-glyph {
            width: 100%;
            height: 100%;
            max-width: 500px;
            filter: drop-shadow(0 20px 40px rgba(239, 117, 35, 0.15));
            animation: float 6s ease-in-out infinite;
        }

        @keyframes float {
            0% { transform: translateY(0); }
            50% { transform: translateY(-20px); }
            100% { transform: translateY(0); }
        }

        .pulse-circle {
            position: absolute;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
            border-radius: 50%;
            z-index: -1;
            animation: pulse 4s ease-in-out infinite alternate;
        }

        @keyframes pulse {
            0% { transform: scale(0.8); opacity: 0.5; }
            100% { transform: scale(1.2); opacity: 0.8; }
        }

        /* Section 2: Smart Suggestion (Div) */
        .aura {
            position: relative;
        }

        .aura-crown {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 4rem;
        }

        .aura-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
        }

        .mock-input {
            background: var(--bg-deep);
            border: 1px solid rgba(255,255,255,0.1);
            border-radius: var(--radius-md);
            padding: 1.5rem;
            display: flex;
            align-items: center;
            gap: 1rem;
            margin-bottom: 2rem;
            box-shadow: inset 0 2px 10px rgba(0,0,0,0.5);
        }

        .mock-cursor {
            width: 2px;
            height: 24px;
            background: var(--primary);
            animation: blink 1s step-end infinite;
        }

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

        /* Section 3: Library (Section) */
        .fetch {
            background: linear-gradient(180deg, transparent 0%, rgba(14, 17, 22, 0.8) 100%);
            padding: 6rem 0;
            border-top: 1px solid rgba(255,255,255,0.03);
        }

        .fetch-layout {
            display: flex;
            flex-wrap: wrap;
            gap: 4rem;
            align-items: center;
        }
        
        .fetch-char {
            flex: 1 1 400px;
        }

        .fetch-visual {
            flex: 1 1 500px;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }

        .glyph {
            background: var(--bg-elevated);
            padding: 2rem;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255,255,255,0.05);
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        /* Footer */
        .tail {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 4rem 0;
            background: var(--bg-deep);
            color: var(--text-muted);
            font-size: 0.875rem;
        }

        .tail .herd {
            justify-content: space-between;
            align-items: center;
        }

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

        .root-links {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
        }

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

        /* Responsive */
        @media (max-width: 768px) {
            .sniff {
                display: none; /* Simplified for mobile in this demo, usually requires a hamburger menu */
            }
            .bark {
                padding: 6rem 0 3rem;
            }
            .howl-max {
                font-size: 2.5rem;
            }
            .overlapping-offset {
                padding: 2rem;
            }
            .fetch-layout {
                flex-direction: column;
            }
            .fetch-visual {
                grid-template-columns: 1fr;
            }
            .tail .herd {
                flex-direction: column;
                gap: 2rem;
                text-align: center;
            }
        }

.sniff-crown {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
    line-height: 1.6;
    word-break: break-word;
    color: var(--text-main);
}
.sniff-crown,
.sniff-crown *,
.sniff-crown *::before,
.sniff-crown *::after {
    box-sizing: border-box;
}

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

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

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

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

.sniff-crown a.sniff-bind {
    --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;
}

.sniff-crown a.sniff-bind,
.sniff-crown a.sniff-bind:hover,
.sniff-crown a.sniff-bind:focus,
.sniff-crown a.sniff-bind:active,
.sniff-crown a.sniff-bind.active,
.sniff-crown a.sniff-bind[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);
}

.sniff-crown .sniff-sniff, .sniff-crown .sniff-crown-inner{
            display: flex;
            flex-wrap: wrap;
        }

.sniff-crown .sniff-sniff > *, .sniff-crown .sniff-crown-inner > *{
            min-width: 0;
        }

.sniff-crown .sniff-den{
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 5vw;
        }

.sniff-crown{
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(6, 7, 9, 0.8);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

.sniff-crown .sniff-crown-inner{
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

.sniff-crown .sniff-snout img{
            height: 28px;
            width: auto;
        }

.sniff-crown .sniff-sniff{
            gap: 2rem;
            align-items: center;
        }

.sniff-crown .sniff-bind{
            font-size: 0.95rem;
            font-weight: 500;
            color: #9aa0a6;
            position: relative;
        }

.sniff-crown .sniff-bind:hover{
            color: #f4f5f6;
        }

.sniff-crown .sniff-bind.active{
            color: #ef7523;
        }

.sniff-crown .sniff-bind.active::after{
            content: '';
            position: absolute;
            bottom: -24px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #ef7523;
            box-shadow: 0 -2px 10px rgba(239, 117, 35, 0.3);
        }

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

.sniff-crown {
    background: rgb(6, 7, 9);
    background-image: none;
}

.tail-heel {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
    line-height: 1.6;
    word-break: break-word;
    color: var(--text-main);
}
.tail-heel,
.tail-heel *,
.tail-heel *::before,
.tail-heel *::after {
    box-sizing: border-box;
}

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

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

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

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

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

.tail-heel .tail-herd{
            display: flex;
            flex-wrap: wrap;
        }

.tail-heel .tail-herd > *{
            min-width: 0;
        }

.tail-heel .tail-char-sm{
            font-size: 0.875rem;
            color: #9aa0a6;
        }

.tail-heel .tail-den{
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 5vw;
        }

.tail-heel .tail-bind{
            font-size: 0.95rem;
            font-weight: 500;
            color: #9aa0a6;
            position: relative;
        }

.tail-heel .tail-bind:hover{
            color: #f4f5f6;
        }

.tail-heel .tail-bind.active{
            color: #ef7523;
        }

.tail-heel .tail-bind.active::after{
            content: '';
            position: absolute;
            bottom: -24px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #ef7523;
            box-shadow: 0 -2px 10px rgba(239, 117, 35, 0.3);
        }

.tail-heel{
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            background: #060709;
            padding: 4rem 0 2rem;
        }

.tail-heel .tail-root-grid{
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 4rem;
            margin-bottom: 4rem;
        }

.tail-heel .tail-root-grid > *{
            min-width: 0;
        }

.tail-heel .tail-root-brand{
            max-width: 300px;
        }

.tail-heel .tail-howl-snout{
            font-size: 1.5rem;
            font-weight: 800;
            color: #f4f5f6;
            display: block;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
        }

.tail-heel .tail-root-links{
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
        }

.tail-heel .tail-root-links > *{
            min-width: 0;
        }

.tail-heel .tail-root-bottom{
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

@media (max-width: 768px){.tail-heel .tail-root-grid{ flex-direction: column; gap: 2rem; }}