/* CSS Reset & Variables */
        :root {
            --color-primary: #65bae5;
            --color-primary-dark: #4a9bc5;
            --color-primary-light: #e0f2fb;
            --color-text-main: #1e293b;
            --color-text-muted: #64748b;
            --color-bg-page: #f8fafc;
            --color-bg-surface: #ffffff;
            --radius-base: 12px;
            --radius-large: 24px;
            --shadow-soft: 0 10px 25px -5px rgba(101, 186, 229, 0.15), 0 8px 10px -6px rgba(101, 186, 229, 0.1);
            --shadow-hover: 0 20px 25px -5px rgba(101, 186, 229, 0.25), 0 8px 10px -6px rgba(101, 186, 229, 0.1);
            --transition: all 0.25s ease;
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            word-break: break-word;
            overflow-wrap: break-word;
        }

        body {
            font-family: var(--font-sans);
            color: var(--color-text-main);
            background-color: var(--color-bg-page);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* Utility Layout */
        .case {
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 5vw;
        }

        .flex-batch {
            display: flex;
            flex-wrap: wrap;
            min-width: 0;
        }

        /* Typography */
        .lead-h1 {
            font-size: clamp(2.5rem, 5vw, 4rem);
            font-weight: 800;
            line-height: 1.1;
            letter-spacing: -0.02em;
            color: #0f172a;
            white-space: normal;
            margin-bottom: 1.5rem;
        }

        .lead-h1 span {
            color: var(--color-primary);
            position: relative;
        }
        
        .lead-h1 span::after {
            content: '';
            position: absolute;
            bottom: 5px;
            left: 0;
            width: 100%;
            height: 12px;
            background-color: var(--color-primary-light);
            z-index: -1;
            border-radius: 6px;
        }

        .lead-h2 {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 1rem;
            white-space: normal;
        }

        .lead-h3 {
            font-size: 1.25rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
            white-space: normal;
        }

        .code-large {
            font-size: 1.125rem;
            color: var(--color-text-muted);
            margin-bottom: 2rem;
            word-break: keep-all;
        }

        /* Header & Navigation (.peak, .cable, .tape) */
        .peak {
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid rgba(101, 186, 229, 0.1);
        }

        .cable {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            min-width: 0;
            height: 80px;
        }

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

        .seal img {
            height: 36px;
            width: auto;
        }

        .tape {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            min-width: 0;
        }

        .tie {
            font-weight: 500;
            color: var(--color-text-main);
            transition: var(--transition);
            position: relative;
            padding: 0.5rem 0;
        }

        .tie:hover {
            color: var(--color-primary);
        }

        .tie.active {
            color: var(--color-primary);
        }

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

        /* Buttons (.tap) */
        .tap {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 1rem 2rem;
            font-size: 1.125rem;
            font-weight: 600;
            border-radius: var(--radius-base);
            transition: var(--transition);
            cursor: pointer;
            border: none;
            gap: 0.5rem;
        }

        .tap-primary {
            background-color: var(--color-primary);
            color: white;
            box-shadow: 0 4px 14px 0 rgba(101, 186, 229, 0.39);
        }

        .tap-primary:hover {
            background-color: var(--color-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(101, 186, 229, 0.23);
        }
        
        .tap-outline {
            background-color: transparent;
            color: var(--color-primary);
            border: 2px solid var(--color-primary);
        }
        
        .tap-outline:hover {
            background-color: var(--color-primary-light);
            transform: translateY(-2px);
        }

        /* 1. Hero Section (.station) - Intro Role */
        .station {
            padding: 6rem 0 4rem;
            overflow: hidden;
            background: linear-gradient(135deg, #ffffff 0%, var(--color-bg-page) 100%);
        }

        .station-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 4rem;
            align-items: center;
        }

        .station-code {
            position: relative;
            z-index: 2;
        }

        /* Hero Mosaic Blueprint Implementation */
        .station-mosaic {
            display: grid;
            grid-template-areas: 
                "main main sub1"
                "main main sub2"
                "sub3 sub4 sub2";
            gap: 1rem;
            position: relative;
        }

        .mosaic-piece {
            border-radius: var(--radius-large);
            overflow: hidden;
            box-shadow: var(--shadow-soft);
            transition: var(--transition);
            background: var(--color-bg-surface);
        }
        
        .mosaic-piece:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }

        .piece-sheath {
            grid-area: main;
            aspect-ratio: 4/3;
        }
        
        .piece-sheath .ink {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .piece-sub1 {
            grid-area: sub1;
            background: linear-gradient(135deg, var(--color-primary) 0%, #3b82f6 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 1.5rem;
            color: white;
        }

        .piece-sub2 {
            grid-area: sub2;
            background: var(--color-primary-light);
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 1.5rem;
        }

        .piece-sub3 {
            grid-area: sub3;
            background: var(--color-bg-surface);
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 1rem;
        }
        
        .piece-sub4 {
            grid-area: sub4;
            background: #0f172a;
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 1rem;
        }

        /* 2. Stats/Proof Article (.bind) */
        .bind {
            padding: 6rem 0;
            background-color: var(--color-bg-surface);
            position: relative;
        }

        .bind-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 4rem;
            align-items: center;
        }

        .bind-visual {
            position: relative;
            border-radius: var(--radius-large);
            box-shadow: var(--shadow-soft);
            overflow: hidden;
            border: 1px solid rgba(101, 186, 229, 0.1);
        }
        
        .bind-visual .ink {
            width: 100%;
            height: auto;
            display: block;
        }
        
        .stat-ribbon {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            margin-top: 2rem;
            min-width: 0;
        }
        
        .stat-tick {
            flex: 1;
            min-width: 140px;
            padding: 1.5rem;
            background: var(--color-bg-page);
            border-radius: var(--radius-base);
            border-left: 4px solid var(--color-primary);
        }
        
        .stat-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-primary);
            margin-bottom: 0.25rem;
        }

        /* 3. Features Div (.desk) */
        .desk {
            padding: 6rem 0;
            background: linear-gradient(180deg, var(--color-bg-page) 0%, #ffffff 100%);
        }

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

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

        .gram {
            background: var(--color-bg-surface);
            padding: 2.5rem;
            border-radius: var(--radius-large);
            box-shadow: var(--shadow-soft);
            transition: var(--transition);
            border: 1px solid rgba(101, 186, 229, 0.05);
            position: relative;
            overflow: hidden;
            z-index: 1;
        }

        .gram::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, transparent 0%, var(--color-primary-light) 100%);
            opacity: 0;
            transition: var(--transition);
            z-index: -1;
        }

        .gram:hover {
            transform: translateY(-10px);
            box-shadow: var(--shadow-hover);
        }
        
        .gram:hover::before {
            opacity: 0.5;
        }

        .mark-case {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: var(--color-primary-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            color: var(--color-primary);
        }

        /* 4. Site Paths Aside (.sheath) */
        .sheath {
            padding: 6rem 0;
            background-color: #0f172a;
            color: white;
        }
        
        .sheath .lead-h2,
        .sheath .code-large {
            color: white;
        }
        
        .sheath .code-large {
            opacity: 0.8;
        }

        .path-batch {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .path-slip {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-base);
            padding: 2rem;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .path-slip:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: var(--color-primary);
            transform: translateY(-5px);
        }
        
        .path-slip .code {
            color: #cbd5e1;
            margin-bottom: 1.5rem;
            flex-grow: 1;
        }
        
        .path-tie {
            display: inline-flex;
            align-items: center;
            color: var(--color-primary);
            font-weight: 600;
            gap: 0.5rem;
            margin-top: auto;
        }

        /* Footer (.ground) */
        .ground {
            background-color: #020617;
            color: #94a3b8;
            padding: 4rem 0 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        .ground-layout {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 3rem;
            min-width: 0;
            margin-bottom: 3rem;
        }

        .ground-brand {
            font-size: 1.5rem;
            font-weight: 700;
            color: white;
            margin-bottom: 1rem;
        }
        
        .ground-code {
            max-width: 400px;
            margin-bottom: 1.5rem;
        }

        .ground-tape {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            min-width: 0;
        }
        
        .ground-lead {
            color: white;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

        .ground-tie {
            transition: var(--transition);
        }

        .ground-tie:hover {
            color: var(--color-primary);
        }

        .ground-bottom {
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            min-width: 0;
            gap: 1rem;
            font-size: 0.875rem;
        }

        /* Responsive Design */
        @media (max-width: 1024px) {
            .station-grid,
            .bind-layout {
                grid-template-columns: 1fr;
                gap: 3rem;
            }
            
            .station-mosaic {
                max-width: 600px;
                margin: 0 auto;
            }
        }

        @media (max-width: 768px) {
            .tape {
                display: none; /* In a real app, this would be a hamburger menu via JS */
            }
            
            .station {
                padding: 4rem 0 3rem;
            }
            
            .station-mosaic {
                grid-template-areas: 
                    "main main"
                    "sub1 sub2"
                    "sub3 sub4";
            }
            
            .bind, .desk, .sheath {
                padding: 4rem 0;
            }
        }

.cable-peak .cable-case{
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 5vw;
        }

.cable-peak{
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid rgba(101, 186, 229, 0.1);
        }

.cable-peak .cable-cable{
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            min-width: 0;
            height: 80px;
        }

.cable-peak .cable-seal{
            display: flex;
            align-items: center;
            min-width: 0;
        }

.cable-peak .cable-seal img{
            height: 36px;
            width: auto;
        }

.cable-peak .cable-tape{
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            min-width: 0;
        }

.cable-peak .cable-tie{
            font-weight: 500;
            color: #1e293b;
            transition: all 0.25s ease;
            position: relative;
            padding: 0.5rem 0;
        }

.cable-peak .cable-tie:hover{
            color: #65bae5;
        }

.cable-peak .cable-tie.active{
            color: #65bae5;
        }

.cable-peak .cable-tie.active::after{
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: #65bae5;
            border-radius: 2px;
        }

@media (max-width: 768px){.cable-peak .cable-tape{
                display: none; 
            }}

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

.ground-ground {
    font-family: var(--font-sans);
    line-height: 1.7;
    color: var(--color-text-main);
}
.ground-ground,
.ground-ground *,
.ground-ground *::before,
.ground-ground *::after {
    box-sizing: border-box;
}

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

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

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

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

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

.ground-ground .ground-case{
            max-width: 1320px;
            margin: 0 auto;
            padding: 0 5vw;
        }

.ground-ground{
            background-color: #020617;
            color: #94a3b8;
            padding: 4rem 0 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

.ground-ground .ground-ground-layout{
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 3rem;
            min-width: 0;
            margin-bottom: 3rem;
        }

.ground-ground .ground-ground-brand{
            font-size: 1.5rem;
            font-weight: 700;
            color: white;
            margin-bottom: 1rem;
        }

.ground-ground .ground-ground-code{
            max-width: 400px;
            margin-bottom: 1.5rem;
        }

.ground-ground .ground-ground-tape{
            display: flex;
            flex-direction: column;
            gap: 1rem;
            min-width: 0;
        }

.ground-ground .ground-ground-lead{
            color: white;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }

.ground-ground .ground-ground-tie{
            transition: all 0.25s ease;
        }

.ground-ground .ground-ground-tie:hover{
            color: #65bae5;
        }

.ground-ground .ground-ground-bottom{
            padding-top: 2rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            min-width: 0;
            gap: 1rem;
            font-size: 0.875rem;
        }