/* ==========================================================================
   基底变量与重置 (继承视觉契约)
   ========================================================================== */
:root {
    --color-bg: #090a0c;
    --color-surface: #121418;
    --color-surface-hover: #1a1d24;
    --color-primary: #38d5ca;
    --color-primary-dim: rgba(56, 213, 202, 0.15);
    --color-text-main: #e2e4e9;
    --color-text-muted: #8b949e;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-focus: rgba(56, 213, 202, 0.3);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    --shadow-base: 0 4px 24px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 32px var(--color-primary-dim);
    
    --font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --transition: 0.35s ease;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text-main);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    word-break: break-word;
    overflow-wrap: break-word;
}

a { text-decoration: none; }
ul, ol { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

/* ==========================================================================
   全局布局与通用容器
   ========================================================================== */
.mesh {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Flex 必备规则 */
.knot-flex {
    display: flex;
    flex-wrap: wrap;
}
.knot-flex > * {
    min-width: 0;
}

/* Grid 必备规则 */
.knot-grid {
    display: grid;
}

/* 排版层级 */
.helm-mega {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: #ffffff;
    white-space: normal;
}
.helm-major {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: -0.01em;
    color: #ffffff;
    white-space: normal;
}
.helm-minor {
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.4;
    color: #ffffff;
    white-space: normal;
}
.soie-lead {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}
.soie-base {
    font-size: 1rem;
    color: var(--color-text-muted);
}
.soie-accent {
    color: var(--color-primary);
    font-weight: 500;
}

/* 按钮与交互语法 */
.clasp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 32px;
    height: 48px;
    background: var(--color-primary);
    color: #000000;
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 20px rgba(56, 213, 202, 0.3);
    border: 1px solid transparent;
    transition: all var(--transition);
    cursor: pointer;
}
.clasp:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(56, 213, 202, 0.5);
    background: #4ae8dd;
}
.clasp-ghost {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-border-focus);
    box-shadow: none;
}
.clasp-ghost:hover {
    background: var(--color-primary-dim);
    box-shadow: none;
}

/* ==========================================================================
   导航栏 (强制复用)
   ========================================================================== */
.brim {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(9, 10, 12, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}
.brim-bind {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}
.sigil img {
    height: 24px;
    width: auto;
}
.reins {
    display: flex;
    align-items: center;
}
.weave {
    display: flex;
    gap: 32px;
}
.fil {
    color: var(--color-text-main);
    font-size: 0.95rem;
    font-weight: 500;
    transition: color var(--transition);
}
.fil:hover, 
.fil.active {
    color: var(--color-primary);
}

/* ==========================================================================
   页面结构路线 (混排)
   ========================================================================== */
.realm {
    padding-top: 72px; /* 避开固定导航 */
}

/* 1. Intro (Section) - Reverse Split */
.aura {
    padding: 120px 0;
    position: relative;
    overflow: hidden;
}
.aura::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at 80% 40%, var(--color-primary-dim) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}
.aura-split {
    align-items: center;
    flex-direction: row-reverse; /* 创意：反向分割 */
    gap: 80px;
}
.aura-soie, 
.aura-lens {
    flex: 1;
    min-width: 320px;
}
.aura-soie {
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.stitch-pill {
    align-self: flex-start;
    padding: 6px 16px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 30px;
    color: var(--color-primary);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.02em;
}
.knot-weave {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 16px;
}
.stitch-row {
    display: flex;
    align-items: center;
    gap: 12px;
}
.glyph-check {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: var(--color-primary);
    stroke-width: 2.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    flex-shrink: 0;
}
.aura-lens {
    position: relative;
}
/* 抽象视觉表现：算力集群与隔离 */
.craft-abstract {
    width: 100%;
    aspect-ratio: 1 / 1;
    max-width: 500px;
    margin: 0 auto;
    position: relative;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: inset 0 0 60px rgba(56, 213, 202, 0.05);
}
.craft-abstract::before,
.craft-abstract::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    border: 1px dashed var(--color-border-focus);
}
.craft-abstract::before {
    width: 75%; height: 75%;
    animation: spin 30s linear infinite;
}
.craft-abstract::after {
    width: 50%; height: 50%;
    border-style: solid;
    border-color: var(--color-border);
    background: var(--color-surface);
    box-shadow: var(--shadow-glow);
}
.craft-core {
    position: relative;
    z-index: 2;
    width: 25%;
    height: 25%;
    background: var(--color-primary);
    border-radius: 50%;
    box-shadow: 0 0 40px var(--color-primary);
}
@keyframes spin { 100% { transform: rotate(360deg); } }

/* 2. Capability (Div) - Data UI */
.lucid {
    padding: 120px 0;
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
}
.lucid-helm {
    text-align: center;
    margin-bottom: 80px;
}
.lucid-split {
    align-items: flex-start;
    gap: 64px;
}
.lucid-lens,
.lucid-nodes {
    flex: 1;
    min-width: 320px;
}
.bind-cuir {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 12px;
    box-shadow: var(--shadow-base);
    position: relative;
}
.bind-cuir::before {
    content: '';
    display: block;
    height: 12px;
    width: 40px;
    background: var(--color-border);
    border-radius: 6px;
    margin-bottom: 12px;
    margin-left: 8px;
}
.lens-ui {
    border-radius: var(--radius-sm);
    border: 1px solid rgba(0,0,0,0.5);
}
.lucid-nodes {
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.node {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 32px;
    transition: transform var(--transition), border-color var(--transition);
    position: relative;
    padding-left: 48px;
}
.node:hover {
    transform: translateX(8px);
    border-color: var(--color-primary-dim);
}
.node::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 38px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-primary);
    box-shadow: 0 0 8px var(--color-primary);
}
.node-helm {
    margin-bottom: 12px;
}

/* 3. Proof (Article) */
.selle {
    padding: 120px 0;
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}
.selle-helm {
    max-width: 600px;
    margin-bottom: 64px;
}
.knot-grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}
.cuir {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px;
    transition: transform var(--transition), box-shadow var(--transition);
}
.cuir:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.4);
    border-color: var(--color-border-focus);
}
.glyph-bind {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: var(--color-primary-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}
.glyph-shield {
    width: 24px;
    height: 24px;
    fill: none;
    stroke: var(--color-primary);
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* 4. Acquire (Section) */
.craft-acquire {
    padding: 140px 0;
    background: var(--color-bg);
    position: relative;
}
.shard {
    max-width: 800px;
    margin: 0 auto;
    background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-bg) 100%);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 64px 48px;
    text-align: center;
    box-shadow: var(--shadow-base);
}
.shard-helm {
    margin-bottom: 24px;
}
.shard-soie {
    margin-bottom: 40px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}
.strap-actions {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

/* ==========================================================================
   页脚
   ========================================================================== */
.seam {
    border-top: 1px solid var(--color-border);
    background: var(--color-bg);
    padding: 48px 0;
}
.vault {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    text-align: center;
}
.vault-sigil {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text-main);
    letter-spacing: 0.05em;
}
.vault-soie {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* ==========================================================================
   响应式断点
   ========================================================================== */
@media (max-width: 1024px) {
    .aura-split {
        gap: 48px;
    }
    .lucid-split {
        gap: 48px;
    }
}

@media (max-width: 768px) {
    .brim-bind {
        padding: 0 16px;
    }
    .weave {
        display: none; /* 简化移动端：隐藏导航条以防溢出，假定有汉堡包逻辑或忽略 */
    }
    .aura {
        padding: 80px 0 60px;
    }
    .aura-split {
        flex-direction: column;
    }
    .lucid {
        padding: 80px 0;
    }
    .lucid-split {
        flex-direction: column;
    }
    .selle {
        padding: 80px 0;
    }
    .craft-acquire {
        padding: 80px 0;
    }
    .shard {
        padding: 40px 24px;
    }
}

.reins-brim .reins-mesh{
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

.reins-brim{
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(9, 10, 12, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

.reins-brim .reins-brim-bind{
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            height: 72px;
        }

.reins-brim .reins-sigil{
            height: 28px;
            display: flex;
            align-items: center;
        }

.reins-brim .reins-sigil img{
            height: 100%;
            object-fit: contain;
        }

.reins-brim .reins-reins{
            display: flex;
            flex-wrap: wrap;
            align-items: center;
        }

.reins-brim .reins-weave{
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
        }

.reins-brim .reins-fil{
            font-size: 0.95rem;
            font-weight: 500;
            color: #8b949e;
            position: relative;
            padding: 8px 0;
        }

.reins-brim .reins-fil:hover, .reins-brim .reins-fil.active{
            color: #38d5ca;
        }

.reins-brim .reins-fil::after{
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #38d5ca;
            transition: width 0.3s ease;
        }

.reins-brim .reins-fil:hover::after, .reins-brim .reins-fil.active::after{
            width: 100%;
        }

@media (max-width: 1024px){.reins-brim .reins-weave{
                display: none; 
            }}

.reins-brim {
    background: rgb(9, 10, 12);
    background-image: none;
}

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

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

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

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

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

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

.seam-hem .seam-mesh{
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

.seam-hem .seam-flex-bind{
            display: flex;
            flex-wrap: wrap;
        }

.seam-hem .seam-helm-minor{
            font-size: 1.25rem;
            font-weight: 600;
            color: #ffffff;
            white-space: normal;
            margin-bottom: 12px;
        }

.seam-hem .seam-soie-base{
            font-size: 1rem;
            color: #8b949e;
            margin-bottom: 16px;
        }

.seam-hem{
            background: #050506;
            padding: 80px 0 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

.seam-hem .seam-seam{
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 40px;
            margin-bottom: 60px;
        }

.seam-hem .seam-vault-brand{
            flex: 1;
            min-width: 240px;
        }

.seam-hem .seam-vault-brand .seam-helm-minor{
            color: #fff;
            margin-bottom: 16px;
            font-size: 1.5rem;
            letter-spacing: 1px;
        }

.seam-hem .seam-vault-links{
            display: flex;
            flex-wrap: wrap;
            gap: 60px;
        }

.seam-hem .seam-vault-knot{
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

.seam-hem .seam-vault-helm{
            color: #fff;
            font-weight: 600;
            font-size: 0.95rem;
            margin-bottom: 12px;
        }

.seam-hem .seam-vault-knot a{
            color: #8b949e;
            font-size: 0.9rem;
        }

.seam-hem .seam-vault-knot a:hover{
            color: #38d5ca;
        }

.seam-hem .seam-seam-bottom{
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 20px;
            font-size: 0.85rem;
            color: #8b949e;
        }

@media (max-width: 768px){.seam-hem .seam-vault-links{
                flex-direction: column;
                gap: 32px;
            }}