/* 核心变量定义 (继承首页视觉契约) */
        :root {
            --color-primary: #6a3be2;
            --color-primary-dark: #4d26b0;
            --color-primary-light: #ece5fe;
            --color-bg-dark: #0f1016;
            --color-bg-light: #f8f9fc;
            --color-surface: #ffffff;
            --color-ink-main: #1d1d1f;
            --color-ink-sub: #6e6e73;
            --color-ink-inverse: #ffffff;
            --color-ink-inverse-sub: rgba(255, 255, 255, 0.7);
            
            --radius-sm: 12px;
            --radius-md: 16px;
            --radius-lg: 22px;
            --radius-pill: 100px;
            
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.12);
            
            --transition: 0.35s ease;
        }

        /* 全局重置与排版基底 */
        body {
            font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--color-bg-light);
            color: var(--color-ink-main);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

        /* 强制文本换行规则 */
        .shell, .binder, .prose, .crest {
            word-break: break-word;
            overflow-wrap: break-word;
            min-width: 0;
        }

        /* 导航栏复用样式 (强制原样) */
        .crown {
            position: sticky;
            top: 0;
            width: 100%;
            background-color: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            z-index: 1000;
        }

        .binder.ribbon {
            max-width: 1200px;
            margin: 0 auto;
            padding: 1rem 1.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
        }

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

        .stamp img {
            height: 28px;
            width: auto;
            display: block;
        }

        .index {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            align-items: center;
            min-width: 0;
        }

        .xref {
            text-decoration: none;
            color: var(--color-ink-sub);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color var(--transition);
            white-space: nowrap;
        }

        .xref:hover, 
        .xref.active {
            color: var(--color-primary);
        }

        /* 通用容器宽度 */
        .binder-binder {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
            width: 100%;
            display: flex;
            flex-wrap: wrap;
            min-width: 0;
        }

        /* Hero 舞台区 (视觉变体: fullbleed_overlay) */
        .stage {
            position: relative;
            width: 100%;
            min-height: 85vh;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            background-color: var(--color-bg-dark);
            color: var(--color-ink-inverse);
            padding-top: 4rem;
            padding-bottom: 4rem;
            overflow: hidden;
            margin-bottom: 4rem;
        }

        .stage-backdrop {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: 1;
        }

        .plate-bg {
            width: 100%;
            height: 100%;
            object-fit: cover;
            opacity: 0.4;
            transform: scale(1.02);
        }

        .stage-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(15,16,22,0.9) 0%, rgba(77,38,176,0.6) 100%);
        }

        .canvas {
            position: relative;
            z-index: 2;
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 1.5rem;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 4rem;
            min-width: 0;
        }

        .prose-batch {
            flex: 1 1 500px;
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .crest-stage {
            font-weight: 700;
            line-height: 1.15;
            font-size: clamp(2.5rem, 5vw, 4rem);
            color: var(--color-ink-inverse);
            letter-spacing: -0.02em;
            margin: 0;
            white-space: normal;
        }

        .prose-lead {
            font-size: clamp(1.1rem, 2vw, 1.25rem);
            color: var(--color-ink-inverse-sub);
            margin: 0;
            max-width: 90%;
            word-break: keep-all;
        }

        .slide-acquisition {
            flex: 1 1 400px;
            min-width: 0;
            background: rgba(255, 255, 255, 0.03);
            backdrop-filter: blur(24px);
            -webkit-backdrop-filter: blur(24px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            display: flex;
            flex-direction: column;
            align-items: center;
            box-shadow: var(--shadow-lg);
            transform: translateY(0);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .slide-acquisition:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
        }

        .plate-slide {
            width: 100%;
            max-width: 320px;
            height: auto;
            border-radius: var(--radius-sm);
            margin-bottom: 2rem;
            box-shadow: 0 8px 32px rgba(0,0,0,0.2);
            border: 1px solid rgba(255,255,255,0.05);
        }

        /* 按钮与交互徽章 */
        .macro {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.75rem;
            padding: 1rem 2.5rem;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 1.1rem;
            text-decoration: none;
            transition: all var(--transition);
            cursor: pointer;
            border: none;
            white-space: nowrap;
            width: 100%;
        }

        .ink-primary {
            background: var(--color-primary);
            color: var(--color-surface);
            box-shadow: 0 4px 16px rgba(106, 59, 226, 0.3);
        }

        .ink-primary:hover {
            background: var(--color-primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(106, 59, 226, 0.4);
        }

        .ink-primary:focus {
            outline: 2px solid var(--color-primary-light);
            outline-offset: 2px;
        }

        .prose-meta {
            margin-top: 1rem;
            font-size: 0.85rem;
            color: var(--color-ink-inverse-sub);
            text-align: center;
        }

        /* 全平台版本对比区 (Article) */
        .sheaf {
            padding: 4rem 0;
            background: var(--color-surface);
            width: 100%;
            margin-bottom: 2rem;
        }

        .sheaf-crown {
            width: 100%;
            text-align: center;
            margin-bottom: 4rem;
            display: flex;
            flex-direction: column;
            align-items: center;
            min-width: 0;
        }

        .crest-binder {
            font-size: clamp(2rem, 3vw, 2.5rem);
            color: var(--color-ink-main);
            font-weight: 700;
            margin: 0 0 1rem 0;
        }

        .prose-sub {
            font-size: 1.1rem;
            color: var(--color-ink-sub);
            max-width: 600px;
            margin: 0;
            word-break: keep-all;
        }

        .batch-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 2rem;
            width: 100%;
        }

        .slide-platform {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 2.5rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(0, 0, 0, 0.03);
            display: flex;
            flex-direction: column;
            transition: all var(--transition);
            min-width: 0;
        }

        .slide-platform:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: var(--color-primary-light);
        }

        .glyph-mark {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-md);
            background: var(--color-bg-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            color: var(--color-primary);
        }

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

        .crest-sub {
            font-size: 1.25rem;
            font-weight: 600;
            margin: 0 0 1rem 0;
            color: var(--color-ink-main);
        }

        .prose-desc {
            color: var(--color-ink-sub);
            margin: 0 0 2rem 0;
            flex-grow: 1;
            font-size: 0.95rem;
        }

        .band-actions {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            width: 100%;
        }

        .ink-ghost {
            background: transparent;
            color: var(--color-primary);
            border: 1.5px solid var(--color-primary);
            padding: 0.75rem 1.5rem;
            font-size: 0.95rem;
            border-radius: var(--radius-pill);
        }

        .ink-ghost:hover {
            background: var(--color-primary-light);
            transform: translateY(-2px);
        }

        /* 为什么选择官方 (Div) */
        .ledger {
            padding: 5rem 0;
            background: var(--color-bg-light);
            width: 100%;
        }

        .batch-index {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2.5rem;
            width: 100%;
            margin: 0;
            padding: 0;
        }

        .cell-feature {
            background: var(--color-surface);
            padding: 2rem;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            border: 1px solid rgba(0,0,0,0.02);
            transition: transform var(--transition);
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

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

        .crest-dt {
            display: flex;
            align-items: center;
            gap: 1rem;
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--color-ink-main);
            margin-bottom: 1rem;
        }

        .crest-dt svg {
            width: 24px;
            height: 24px;
            color: var(--color-primary);
            flex-shrink: 0;
        }

        .prose-dd {
            margin: 0;
            color: var(--color-ink-sub);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* 页脚区域 */
        .base {
            background: var(--color-surface);
            padding: 4rem 0 2rem;
            border-top: 1px solid rgba(0,0,0,0.05);
            width: 100%;
            margin-top: auto;
        }

        .spine-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 3rem;
            margin-bottom: 3rem;
        }

        .endcap-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.02em;
            margin: 0 0 1rem 0;
        }

        .prose-note {
            color: var(--color-ink-sub);
            font-size: 0.9rem;
            max-width: 300px;
        }

        .spine-col {
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .crest-spine {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-ink-main);
            margin: 0 0 0.5rem 0;
        }

        .xref-spine {
            color: var(--color-ink-sub);
            text-decoration: none;
            font-size: 0.9rem;
            transition: color var(--transition);
        }

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

        .endcap-legal {
            border-top: 1px solid rgba(0,0,0,0.05);
            padding-top: 2rem;
            text-align: center;
            color: var(--color-ink-sub);
            font-size: 0.85rem;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .canvas {
                gap: 2rem;
            }
            .prose-batch {
                flex-basis: 100%;
                text-align: center;
                align-items: center;
            }
            .prose-lead {
                max-width: 100%;
            }
            .slide-acquisition {
                flex-basis: 100%;
                max-width: 500px;
                margin: 0 auto;
            }
        }

        @media (max-width: 768px) {
            .index {
                display: none; /* 移动端简化隐藏导航项，仅作演示布局 */
            }
            .crest-stage {
                font-size: 2.2rem;
            }
            .batch-grid {
                grid-template-columns: 1fr;
            }
            .spine-grid {
                grid-template-columns: 1fr;
                gap: 2rem;
            }
        }

.ribbon-crown .ribbon-binder{
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 2rem;
            width: 100%;
            display: flex;
            flex-wrap: wrap;
            min-width: 0;
        }

.ribbon-crown{
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 100;
            background: rgba(15, 16, 22, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

.ribbon-crown .ribbon-ribbon{
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            height: 72px;
            min-width: 0;
        }

.ribbon-crown .ribbon-stamp{
            display: flex;
            align-items: center;
            min-width: 0;
        }

.ribbon-crown .ribbon-stamp img{
            height: 32px;
            width: auto;
            display: block;
        }

.ribbon-crown .ribbon-index{
            display: flex;
            flex-wrap: wrap;
            gap: 1.5rem;
            min-width: 0;
        }

.ribbon-crown .ribbon-xref{
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all 0.35s ease;
            padding: 0.5rem 0;
            position: relative;
        }

.ribbon-crown .ribbon-xref:hover{
            color: #ffffff;
        }

.ribbon-crown .ribbon-xref.active{
            color: #ffffff;
        }

.ribbon-crown .ribbon-xref.active::after{
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: #6a3be2;
            border-radius: 2px;
        }

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

.ribbon-crown {
    background: rgb(15, 16, 22);
    background-image: none;
}

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

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

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

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

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

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

.spine-base .spine-binder{
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 2rem;
            width: 100%;
            display: flex;
            flex-wrap: wrap;
            min-width: 0;
        }

.spine-base .spine-xref{
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all 0.35s ease;
            padding: 0.5rem 0;
            position: relative;
        }

.spine-base .spine-xref:hover{
            color: #ffffff;
        }

.spine-base .spine-xref.active{
            color: #ffffff;
        }

.spine-base .spine-xref.active::after{
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: #6a3be2;
            border-radius: 2px;
        }

.spine-base{
            background: #0f1016;
            color: rgba(255, 255, 255, 0.7);
            padding: 8rem 0 2rem;
            margin-top: auto;
        }

.spine-base .spine-spine{
            display: flex;
            flex-wrap: wrap;
            gap: 8rem;
            justify-content: space-between;
            min-width: 0;
            border-bottom: 1px solid rgba(255,255,255,0.1);
            padding-bottom: 4rem;
            margin-bottom: 2rem;
        }

.spine-base .spine-spine-col{
            flex: 1 1 200px;
            min-width: 0;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

.spine-base .spine-spine-col .spine-crest{
            color: #ffffff;
            font-size: 1.2rem;
            margin-bottom: 0.5rem;
        }

.spine-base .spine-spine-col .spine-xref{
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
        }

.spine-base .spine-spine-col .spine-xref:hover{
            color: #ece5fe;
            padding-left: 4px;
        }

.spine-base .spine-endcap{
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }