/* 视觉契约与基础变量 */
        :root {
            --color-brand: #e88560;
            --color-brand-light: #fff2ed;
            --color-brand-dark: #cc6b46;
            --color-dark: #231b17;
            --color-gray: #6b5f59;
            --color-light: #fbf9f8;
            --color-white: #ffffff;
            
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            
            --shadow-sm: 0 4px 12px rgba(232, 133, 96, 0.04);
            --shadow-md: 0 12px 36px rgba(232, 133, 96, 0.08);
            --shadow-hover: 0 20px 48px rgba(232, 133, 96, 0.12);
            
            --transition: all 0.15s ease;
        }

        /* 基础重置 */
        *, *::before, *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            word-break: break-word;
            overflow-wrap: break-word;
        }

        body {
            font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--color-dark);
            background-color: var(--color-white);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

        /* 强制Flexbox规则 */
        .flex-crate {
            display: flex;
            flex-wrap: wrap;
        }

        .flex-slot {
            min-width: 0;
        }

        /* --- 导航栏复用样式 (严格遵守要求) --- */
        .seam-cap {
            background-color: var(--color-white);
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .track-film {
            max-width: 1200px;
            margin: 0 auto;
            padding: 1rem 2rem;
            align-items: center;
            justify-content: space-between;
        }

        .stamp {
            display: flex;
            align-items: center;
        }
        
        .stamp img {
            height: 32px;
            width: auto;
            display: block;
        }

        .zipper-stack {
            gap: 2rem;
            align-items: center;
        }

        .zipper-bond {
            color: var(--color-gray);
            font-weight: 500;
            font-size: 1rem;
            padding: 0.5rem 0;
            border-bottom: 2px solid transparent;
        }

        .zipper-bond:hover,
        .zipper-bond.active {
            color: var(--color-brand);
        }
        
        .zipper-bond.active {
            border-bottom-color: var(--color-brand);
        }

        @media (max-width: 768px) {
            .track-film { padding: 1rem; }
            .zipper-stack { gap: 1rem; flex-basis: 100%; justify-content: center; margin-top: 1rem; }
        }

        /* --- 主体结构与版心 --- */
        .core-film {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }
        
        @media (max-width: 768px) {
            .core-film { padding: 0 1.5rem; }
        }

        /* --- 组件语法 --- */
        .press-squish {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background-color: var(--color-brand);
            color: var(--color-white);
            padding: 1rem 2.5rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            box-shadow: var(--shadow-md);
            cursor: pointer;
            border: none;
        }
        
        .press-squish:hover {
            background-color: var(--color-brand-dark);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
            color: var(--color-white);
        }

        .tag-dramatic {
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--color-dark);
            white-space: normal;
        }

        .tag-prime {
            font-size: clamp(2rem, 3.5vw, 3.5rem);
        }

        .tag-sub {
            font-size: clamp(1.75rem, 2.5vw, 2.5rem);
            margin-bottom: 1rem;
        }

        .data-lead {
            font-size: 1.125rem;
            color: var(--color-gray);
            line-height: 1.8;
            word-break: keep-all;
        }

        /* --- Section 1: Vault (Hero - reverse_split) --- */
        .vault-crate {
            background-color: var(--color-brand-light);
            padding: 5rem 0;
            overflow: hidden;
        }

        .vault-film {
            align-items: center;
            justify-content: space-between;
            gap: 4rem;
        }

        /* 创意种子落实: reverse_split (桌面端右图左文变体，视觉UI在左侧) */
        @media (min-width: 769px) {
            .vault-film {
                flex-direction: row-reverse; 
            }
            .vault-data {
                flex: 1 1 50%;
                padding-left: 2rem;
            }
            .vault-ui {
                flex: 1 1 40%;
            }
        }
        
        @media (max-width: 768px) {
            .vault-film {
                flex-direction: column-reverse;
                gap: 3rem;
            }
            .vault-data {
                text-align: center;
            }
        }

        .vault-data .tag-prime {
            margin-bottom: 1.5rem;
        }

        .vault-data .data-lead {
            margin-bottom: 2.5rem;
        }

        /* Data UI 视觉承载 (无图设计，纯CSS/SVG构建修复概念) */
        .vault-ui {
            position: relative;
            background: var(--color-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 2.5rem;
            border: 1px solid rgba(0,0,0,0.05);
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .ui-tape {
            height: 8px;
            border-radius: 4px;
            background: var(--color-light);
            overflow: hidden;
            position: relative;
        }

        .ui-tape::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            height: 100%;
            width: 60%;
            background: var(--color-brand);
            border-radius: 4px;
            transition: width 1s ease;
        }

        .vault-ui:hover .ui-tape::after {
            width: 100%;
        }

        .ui-batch {
            display: flex;
            gap: 1rem;
            align-items: center;
        }

        .ui-glyph {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: var(--color-brand-light);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--color-brand);
        }

        .ui-data {
            flex: 1;
        }
        
        .ui-line {
            height: 12px;
            background: var(--color-light);
            border-radius: 6px;
            margin-bottom: 8px;
            width: 80%;
        }
        .ui-line.short { width: 50%; }

        /* --- Section 2: Bulk (Diagnostics / FAQ) --- */
        .bulk-crate {
            padding: 6rem 0;
            background-color: var(--color-white);
        }

        .bulk-cap {
            text-align: center;
            flex-basis: 100%;
            margin-bottom: 4rem;
        }

        .pack-batch {
            gap: 2rem;
            justify-content: center;
            width: 100%;
        }

        .cube-slot {
            flex: 1 1 calc(33.333% - 2rem);
            min-width: 280px;
            background-color: var(--color-white);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 2.5rem;
            border: 1px solid rgba(0,0,0,0.05);
            transition: var(--transition);
            flex-direction: column;
            align-items: flex-start;
        }

        .cube-slot:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(232, 133, 96, 0.2);
        }

        .cube-glyph {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: linear-gradient(135deg, var(--color-brand-light) 0%, var(--color-white) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            border: 1px solid rgba(232, 133, 96, 0.1);
        }
        
        .cube-glyph svg {
            width: 32px;
            height: 32px;
            color: var(--color-brand);
        }

        .cube-tag {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--color-dark);
        }

        .cube-data {
            color: var(--color-gray);
            line-height: 1.6;
        }

        /* --- Section 3: Chunk (Step-by-step) --- */
        .chunk-crate {
            padding: 6rem 0;
            background-color: var(--color-light);
        }

        .chunk-film {
            align-items: flex-start;
            gap: 4rem;
        }

        .chunk-intro {
            flex: 1 1 40%;
            min-width: 300px;
        }

        .flow-batch {
            flex: 1 1 50%;
            min-width: 300px;
            flex-direction: column;
            gap: 1.5rem;
        }

        .parcel-slot {
            background-color: var(--color-white);
            border-radius: var(--radius-md);
            padding: 2rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(0,0,0,0.03);
            align-items: center;
            gap: 1.5rem;
            transition: var(--transition);
        }

        .parcel-slot:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(232, 133, 96, 0.1);
        }

        .step-tag {
            width: 40px;
            height: 40px;
            flex-shrink: 0;
            border-radius: 50%;
            background-color: var(--color-brand);
            color: var(--color-white);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.25rem;
        }

        .parcel-data {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--color-dark);
        }

        /* --- Section 4: Proof (Advanced Recovery) --- */
        .proof-crate {
            padding: 6rem 0;
            background-color: var(--color-white);
        }

        .alert-film {
            background: linear-gradient(to right, var(--color-brand-light), var(--color-white));
            border-radius: var(--radius-lg);
            padding: 4rem;
            border-left: 6px solid var(--color-brand);
            box-shadow: var(--shadow-md);
            width: 100%;
            align-items: center;
            justify-content: space-between;
            gap: 3rem;
        }

        .alert-data {
            flex: 1 1 60%;
        }

        .alert-glyph {
            flex: 0 0 auto;
            width: 80px;
            height: 80px;
            background-color: var(--color-white);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-sm);
            color: var(--color-brand);
        }

        @media (max-width: 768px) {
            .alert-film {
                padding: 2.5rem;
                flex-direction: column;
                text-align: center;
            }
            .alert-film { border-left: none; border-top: 6px solid var(--color-brand); }
        }

        /* --- 页脚 --- */
        .root-seal {
            background-color: var(--color-light);
            padding: 4rem 0 2rem;
            border-top: 1px solid rgba(0,0,0,0.05);
        }

        .root-film {
            justify-content: space-between;
            align-items: flex-end;
            gap: 2rem;
        }

        .root-stamp {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-dark);
            margin-bottom: 1rem;
        }

        .root-data {
            color: var(--color-gray);
            font-size: 0.875rem;
        }
        
        .root-stack {
            display: flex;
            gap: 1.5rem;
        }
        
        .root-bond {
            color: var(--color-gray);
            font-size: 0.875rem;
        }
        
        .root-bond:hover {
            color: var(--color-brand);
        }

.zipper-seam-cap {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-dark);
}
.zipper-seam-cap,
.zipper-seam-cap *,
.zipper-seam-cap *::before,
.zipper-seam-cap *::after {
    box-sizing: border-box;
}

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

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

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

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

.zipper-seam-cap a.zipper-flex-slot.zipper-zipper-bond {
    --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;
}

.zipper-seam-cap a.zipper-flex-slot.zipper-zipper-bond,
.zipper-seam-cap a.zipper-flex-slot.zipper-zipper-bond:hover,
.zipper-seam-cap a.zipper-flex-slot.zipper-zipper-bond:focus,
.zipper-seam-cap a.zipper-flex-slot.zipper-zipper-bond:active,
.zipper-seam-cap a.zipper-flex-slot.zipper-zipper-bond.active,
.zipper-seam-cap a.zipper-flex-slot.zipper-zipper-bond[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);
}

.zipper-seam-cap .zipper-flex-crate{
            display: flex;
            flex-wrap: wrap;
        }

.zipper-seam-cap .zipper-flex-slot{
            min-width: 0;
        }

.zipper-seam-cap{
            position: sticky;
            top: 0;
            z-index: 100;
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(232, 133, 96, 0.1);
        }

.zipper-seam-cap .zipper-track-film{
            max-width: 1400px;
            margin: 0 auto;
            padding: 1rem 2rem;
            align-items: center;
            justify-content: space-between;
        }

.zipper-seam-cap .zipper-stamp{
            width: 140px;
        }

.zipper-seam-cap .zipper-zipper-stack{
            align-items: center;
            gap: 2rem;
        }

.zipper-seam-cap .zipper-zipper-bond{
            font-weight: 500;
            color: #6b5f59;
            position: relative;
            padding: 0.5rem 0;
        }

.zipper-seam-cap .zipper-zipper-bond:hover, .zipper-seam-cap .zipper-zipper-bond.active{
            color: #e88560;
        }

.zipper-seam-cap .zipper-zipper-bond::after{
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background-color: #e88560;
            transition: all 0.15s ease;
        }

.zipper-seam-cap .zipper-zipper-bond:hover::after, .zipper-seam-cap .zipper-zipper-bond.active::after{
            width: 100%;
        }

@media (max-width: 768px){.zipper-seam-cap .zipper-zipper-stack{
                display: none; 
            }}

.zipper-seam-cap {
    background: rgb(255, 255, 255);
    background-image: none;
}

.seal-seal-root {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.7;
    color: var(--color-dark);
}
.seal-seal-root,
.seal-seal-root *,
.seal-seal-root *::before,
.seal-seal-root *::after {
    box-sizing: border-box;
}

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

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

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

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

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

.seal-seal-root .seal-flex-crate{
            display: flex;
            flex-wrap: wrap;
        }

.seal-seal-root .seal-flex-slot{
            min-width: 0;
        }

.seal-seal-root .seal-pouch-film{
            max-width: 1400px;
            margin: 0 auto;
            padding: 6rem 2rem;
        }

.seal-seal-root{
            background-color: #ffffff;
            border-top: 1px solid rgba(0,0,0,0.05);
            padding: 4rem 2rem;
        }

.seal-seal-root .seal-hash-tape{
            max-width: 1400px;
            margin: 0 auto;
            justify-content: space-between;
            align-items: center;
        }

.seal-seal-root .seal-tail-brand{
            font-size: 1.5rem;
            font-weight: 800;
            color: #231b17;
            letter-spacing: -0.02em;
        }

.seal-seal-root .seal-tail-data{
            color: #6b5f59;
            font-size: 0.9rem;
        }

.seal-seal-root .seal-tail-batch{
            gap: 2rem;
        }

.seal-seal-root .seal-tail-bond{
            color: #6b5f59;
            font-size: 0.95rem;
        }

.seal-seal-root .seal-tail-bond:hover{
            color: #e88560;
        }

@media (max-width: 768px){.seal-seal-root .seal-pouch-film{ padding: 4rem 1.5rem; }

.seal-seal-root .seal-hash-tape{ flex-direction: column; gap: 2rem; text-align: center; }}