/* 核心变量与基底契约 */
:root {
    --color-brand: #644ad4;
    --color-brand-hover: #4a33a3;
    --color-surface-dark: #121214;
    --color-surface-light: #f8f9fa;
    --color-surface-white: #ffffff;
    --color-ink-primary: #1a1a1c;
    --color-ink-secondary: #5e5e66;
    --color-ink-inverse: #ffffff;
    --color-ink-inverse-dim: rgba(255, 255, 255, 0.7);
    --color-border: #e4e4e9;
    --color-border-dark: #2c2c30;
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
    
    --transition: all 0.35s ease;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* 全局重置与基础 */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    color: var(--color-ink-primary);
    background-color: var(--color-surface-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

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

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

/* 强制结构约束 */
.batch-flex {
    display: flex;
    flex-wrap: wrap;
}

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

.ink-wrap {
    word-break: break-word;
    overflow-wrap: break-word;
    white-space: normal;
}

/* 导航栏复用样式 (精确匹配提供的HTML结构) */
.crown-top {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.ribbon-ribbon {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
    height: 72px;
    align-items: center;
    justify-content: space-between;
}

.stamp-brand {
    height: 32px;
    display: flex;
    align-items: center;
}

.stamp-brand img {
    height: 100%;
}

.deck-deck {
    gap: 32px;
    align-items: center;
}

.knot-knot {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-ink-secondary);
    position: relative;
    padding: 8px 0;
}

.knot-knot:hover {
    color: var(--color-brand);
}

.knot-knot.active {
    color: var(--color-brand);
}

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

/* 页面骨架与版心 */
.hull-global {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.sheaf-core {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.tray-bound {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

/* Typography 尺度 */
.apex-h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: var(--color-ink-inverse);
    margin-bottom: 24px;
}

.apex-h2 {
    font-size: clamp(2rem, 3.5vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.25;
    color: var(--color-ink-primary);
    margin-bottom: 20px;
}

.apex-h3 {
    font-size: 1.25rem;
    font-weight: 600;
    line-height: 1.4;
    color: var(--color-ink-primary);
    margin-bottom: 12px;
}

/* Block 1: Hero (intro) - 深色视觉变体 */
.folio-intro {
    background-color: var(--color-surface-dark);
    padding: 100px 0;
    position: relative;
    overflow: hidden;
}

/* 背景光晕层次 */
.folio-intro::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(100, 74, 212, 0.15) 0%, rgba(18, 18, 20, 0) 70%);
    pointer-events: none;
}

.film-intro {
    align-items: center;
    gap: 60px;
}

.sheaf-intro-ink {
    flex: 1;
    min-width: 300px;
    padding-right: 20px;
}

.ink-lead {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    color: var(--color-ink-inverse-dim);
    margin-bottom: 40px;
    max-width: 540px;
}

.stage-intro-lens {
    flex: 1.2;
    min-width: 320px;
    position: relative;
}

.lens-frame {
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-dark);
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.4);
    overflow: hidden;
    position: relative;
    transform: perspective(1000px) rotateY(-5deg) translateY(0);
    transition: var(--transition);
}

.stage-intro-lens:hover .lens-frame {
    transform: perspective(1000px) rotateY(0deg) translateY(-8px);
    box-shadow: 0 32px 80px rgba(0, 0, 0, 0.5);
}

/* Block 2: Categories (detail) - 浅色阵列 */
.canvas-detail {
    padding: 100px 0;
    background-color: var(--color-surface-light);
}

.sheaf-detail-crown {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 64px;
}

.ink-sub {
    font-size: 1.125rem;
    color: var(--color-ink-secondary);
}

.batch-detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.slate-category {
    background: var(--color-surface-white);
    padding: 40px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.slate-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--color-brand);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition);
}

.slate-category:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.slate-category:hover::before {
    transform: scaleX(1);
}

.glyph-wrap {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background: rgba(100, 74, 212, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--color-brand);
}

.glyph-vector {
    width: 28px;
    height: 28px;
    fill: currentColor;
}

/* Block 3: Scenarios (capability) - 纯白矩阵 */
.stage-capability {
    padding: 100px 0;
    background-color: var(--color-surface-white);
}

.sheaf-capability-layout {
    gap: 48px;
}

.sheaf-capability-ink {
    flex: 1;
    min-width: 300px;
}

.batch-capability-grid {
    flex: 2;
    min-width: 320px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.pane-scenario {
    padding: 32px 24px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
    background: var(--color-surface-light);
    transition: var(--transition);
}

.pane-scenario:hover {
    background: var(--color-surface-white);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.apex-h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-ink-primary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.glyph-small {
    width: 20px;
    height: 20px;
    fill: var(--color-ink-secondary);
    transition: var(--transition);
}

.pane-scenario:hover .glyph-small {
    fill: var(--color-brand);
}

/* Block 4: CTA (acquire) - 品牌色强调 */
.folio-acquire {
    padding: 80px 0;
    background-color: var(--color-surface-light);
    border-top: 1px solid var(--color-border);
}

.shard-macro {
    background: linear-gradient(135deg, #644ad4 0%, #3e269e 100%);
    border-radius: var(--radius-lg);
    padding: 64px 40px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    color: var(--color-ink-inverse);
}

.apex-macro {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--color-ink-inverse);
}

.ink-macro {
    font-size: 1.125rem;
    color: var(--color-ink-inverse-dim);
    margin-bottom: 40px;
}

/* 按钮宏 */
.macro-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 36px;
    background-color: var(--color-surface-white);
    color: var(--color-brand);
    font-size: 1.125rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
}

.macro-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
    background-color: var(--color-surface-light);
}

.macro-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 36px;
    background-color: transparent;
    color: var(--color-ink-inverse);
    font-size: 1.125rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: var(--transition);
}

.macro-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

.batch-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer 复用骨架 */
.base-vault {
    background-color: var(--color-surface-dark);
    color: var(--color-ink-inverse-dim);
    padding: 60px 0 30px;
    border-top: 1px solid var(--color-border-dark);
}

.batch-vault-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 60px;
}

.apex-vault {
    color: var(--color-ink-inverse);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.apex-vault-col {
    color: var(--color-ink-inverse);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
}

.batch-vault-links {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.knot-vault {
    color: var(--color-ink-inverse-dim);
    font-size: 0.9375rem;
}

.knot-vault:hover {
    color: var(--color-ink-inverse);
}

.bind-legal {
    border-top: 1px solid var(--color-border-dark);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 0.875rem;
}

/* 响应式断点 */
@media (max-width: 1024px) {
    .batch-vault-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .deck-deck {
        display: none; /* 移动端导航简化处理，保持骨架优先 */
    }
    
    .film-intro {
        flex-direction: column;
    }
    
    .sheaf-intro-ink {
        padding-right: 0;
        text-align: center;
    }
    
    .ink-lead {
        margin: 0 auto 32px;
    }
    
    .batch-actions {
        justify-content: center;
    }
    
    .sheaf-capability-layout {
        flex-direction: column;
    }
    
    .shard-macro {
        padding: 40px 20px;
    }
    
    .batch-vault-grid {
        grid-template-columns: 1fr;
    }
    
    .bind-legal {
        flex-direction: column;
        text-align: center;
    }
}

.ribbon-crown-top {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--color-ink-primary);
}
.ribbon-crown-top,
.ribbon-crown-top *,
.ribbon-crown-top *::before,
.ribbon-crown-top *::after {
    box-sizing: border-box;
}

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

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

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

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

.ribbon-crown-top a.ribbon-knot-knot {
    --aisite-shell-nav-padding: 0.5rem 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;
}

.ribbon-crown-top a.ribbon-knot-knot,
.ribbon-crown-top a.ribbon-knot-knot:hover,
.ribbon-crown-top a.ribbon-knot-knot:focus,
.ribbon-crown-top a.ribbon-knot-knot:active,
.ribbon-crown-top a.ribbon-knot-knot.active,
.ribbon-crown-top a.ribbon-knot-knot[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);
}

.ribbon-crown-top .ribbon-batch-flex{
            display: flex;
            flex-wrap: wrap;
        }

.ribbon-crown-top .ribbon-batch-flex > *{
            min-width: 0;
        }

.ribbon-crown-top{
            position: sticky;
            top: 0;
            z-index: 1000;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid #e4e4e9;
        }

.ribbon-crown-top .ribbon-ribbon-ribbon{
            max-width: 1400px;
            margin: 0 auto;
            padding: 1rem 5vw;
            justify-content: space-between;
            align-items: center;
        }

.ribbon-crown-top .ribbon-stamp-brand{
            display: flex;
            align-items: center;
            height: 32px;
        }

.ribbon-crown-top .ribbon-stamp-brand img{
            height: 100%;
            width: auto;
        }

.ribbon-crown-top .ribbon-deck-deck{
            gap: 2rem;
            align-items: center;
        }

.ribbon-crown-top .ribbon-knot-knot{
            text-decoration: none;
            color: #5e5e66;
            font-weight: 500;
            font-size: 0.95rem;
            transition: all 0.35s ease;
            padding: 0.5rem 0;
            position: relative;
        }

.ribbon-crown-top .ribbon-knot-knot:hover{
            color: #644ad4;
        }

.ribbon-crown-top .ribbon-knot-knot.active{
            color: #644ad4;
        }

.ribbon-crown-top .ribbon-knot-knot.active::after{
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 100%;
            height: 2px;
            background-color: #644ad4;
            border-radius: 2px;
        }

@media (max-width: 768px){.ribbon-crown-top .ribbon-ribbon-ribbon{
                flex-direction: column;
                gap: 1rem;
                padding: 1rem;
            }

.ribbon-crown-top .ribbon-deck-deck{
                flex-wrap: wrap;
                justify-content: center;
                gap: 1rem;
            }}

.ribbon-crown-top {
    background: rgb(255, 255, 255);
    background-image: none;
}

.base-heel-bottom {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--color-ink-primary);
}
.base-heel-bottom,
.base-heel-bottom *,
.base-heel-bottom *::before,
.base-heel-bottom *::after {
    box-sizing: border-box;
}

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

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

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

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

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

.base-heel-bottom{
            background-color: #ffffff;
            border-top: 1px solid #e4e4e9;
            padding: 4rem 5vw 2rem;
        }

.base-heel-bottom .base-sheaf-heel{
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

.base-heel-bottom .base-apex-brand-ink{
            font-size: 1.5rem;
            font-weight: 700;
            color: #1a1a1c;
            letter-spacing: -0.02em;
            margin-bottom: 1rem;
        }

.base-heel-bottom .base-bind-copyright{
            color: #5e5e66;
            font-size: 0.875rem;
        }