/* 核心变量与重置 */
        :root {
            --brand: #e471b4;
            --brand-light: #fbebf4;
            --brand-gradient: linear-gradient(135deg, #e471b4 0%, #ff8c82 100%);
            --bg-main: #faf9f8;
            --bg-pure: #ffffff;
            --ink-dark: #1a1a1a;
            --ink-medium: #4a4a4a;
            --ink-light: #8c8c8c;
            --border: rgba(0, 0, 0, 0.06);
            --radius-lg: 24px;
            --radius-md: 18px;
            --shadow-soft: 0 12px 40px rgba(228, 113, 180, 0.08);
            --shadow-hover: 0 20px 50px rgba(228, 113, 180, 0.15);
            --transition: all 0.15s ease;
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--bg-main);
            color: var(--ink-dark);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
        }

        /* 强制换行规范 */
        .ink-leaf, .topic, .ink {
            word-break: break-word;
            overflow-wrap: break-word;
        }
        
        /* 中文内容优化 */
        p.ink {
            word-break: keep-all;
        }

        /* 标题排版 */
        h1.topic, h2.topic, h3.topic {
            white-space: normal;
            font-weight: 800;
            letter-spacing: -0.02em;
        }

        /* Flex & Grid 强制规则 */
        .binder, .folder, .ream, .stack {
            display: flex;
            flex-wrap: wrap;
        }

        .binder > *, .folder > *, .ream > *, .stack > * {
            min-width: 0;
        }

        /* 头部导航区域 (ribbon) */
        .crown {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border);
            padding: 15px 5vw;
        }

        .ribbon {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            max-width: 1400px;
            margin: 0 auto;
            width: 100%;
        }

        .crest {
            flex: 0 0 auto;
            min-width: 0;
        }

        .crest img {
            height: 32px;
            display: block;
        }

        .index {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            align-items: center;
        }

        .ribbon-jump {
            text-decoration: none;
            color: var(--ink-medium);
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            position: relative;
        }

        .ribbon-jump:hover, .ribbon-jump:focus {
            color: var(--brand);
        }

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

        .ribbon-jump.active::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
        }

        /* 主容器 */
        .binder {
            flex-direction: column;
            width: 100%;
        }

        /* Hero 区域 (split_diagonal 蓝图) */
        .canvas {
            display: flex;
            flex-wrap: wrap;
            position: relative;
            min-height: 85vh;
            background: var(--bg-pure);
            overflow: hidden;
            border-bottom: 1px solid var(--border);
        }

        .canvas-ink-leaf {
            flex: 1 1 45%;
            padding: 10vw 5vw 10vw 8vw;
            display: flex;
            flex-direction: column;
            justify-content: center;
            z-index: 2;
        }

        .canvas-ink-leaf .topic {
            font-size: clamp(2.5rem, 5vw, 4.5rem);
            line-height: 1.1;
            color: var(--ink-dark);
            margin-bottom: 24px;
        }

        .canvas-ink-leaf .topic span {
            background: var(--brand-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .canvas-ink-leaf .ink {
            font-size: clamp(1.1rem, 2vw, 1.25rem);
            color: var(--ink-medium);
            max-width: 500px;
            margin-bottom: 40px;
        }

        .stamp-stack {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .stamp-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 16px 36px;
            background: var(--brand-gradient);
            color: #fff;
            text-decoration: none;
            font-weight: 700;
            font-size: 1.1rem;
            border-radius: 100px;
            transition: var(--transition);
            box-shadow: 0 8px 20px rgba(228, 113, 180, 0.3);
            border: none;
            cursor: pointer;
        }

        .stamp-primary:hover, .stamp-primary:focus {
            transform: translateY(-3px);
            box-shadow: 0 12px 25px rgba(228, 113, 180, 0.4);
        }

        .stamp-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 16px 36px;
            background: var(--bg-main);
            color: var(--ink-dark);
            text-decoration: none;
            font-weight: 600;
            font-size: 1.1rem;
            border-radius: 100px;
            transition: var(--transition);
            border: 1px solid rgba(0,0,0,0.1);
        }

        .stamp-secondary:hover, .stamp-secondary:focus {
            background: rgba(0,0,0,0.03);
            transform: translateY(-2px);
        }

        /* Hero 右侧对角线视差区 */
        .canvas-deck {
            flex: 1 1 55%;
            background: var(--brand-gradient);
            /* 斜切剪裁: 20%的倾角形成对角线分割 */
            clip-path: polygon(20% 0, 100% 0, 100% 100%, 0% 100%);
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }

        /* Data UI 视觉承载 (无图片设计) */
        .data-ui-leaf {
            width: 120%;
            height: 120%;
            position: absolute;
            top: -10%;
            left: -10%;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            perspective: 1000px;
        }

        .data-pane {
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-radius: var(--radius-md);
            box-shadow: 0 20px 40px rgba(0,0,0,0.1);
            position: absolute;
            transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
        }

        .data-pane-1 {
            width: 320px;
            height: 200px;
            transform: rotateY(-15deg) rotateX(10deg) translateZ(50px) translateX(10%);
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        
        .data-pane-2 {
            width: 260px;
            height: 280px;
            background: rgba(255,255,255,0.95);
            transform: rotateY(10deg) rotateX(5deg) translateZ(120px) translateX(-40%) translateY(20%);
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .data-ui-leaf:hover .data-pane-1 {
            transform: rotateY(-5deg) rotateX(5deg) translateZ(80px) translateX(5%);
        }

        .data-ui-leaf:hover .data-pane-2 {
            transform: rotateY(5deg) rotateX(0deg) translateZ(150px) translateX(-35%) translateY(15%);
        }

        .mock-stripe {
            height: 8px;
            border-radius: 4px;
            background: #f0f0f0;
            width: 100%;
        }
        
        .mock-stripe.short { width: 60%; }
        .mock-stripe.brand { background: var(--brand); opacity: 0.3; }

        .mock-chart {
            flex-grow: 1;
            display: flex;
            align-items: flex-end;
            gap: 8px;
            padding-top: 10px;
        }
        
        .mock-stripe {
            flex: 1;
            background: var(--brand-light);
            border-radius: 4px 4px 0 0;
            height: 100%;
        }
        .mock-stripe:nth-child(1) { height: 40%; }
        .mock-stripe:nth-child(2) { height: 70%; background: var(--brand); opacity: 0.6; }
        .mock-stripe:nth-child(3) { height: 50%; }
        .mock-stripe:nth-child(4) { height: 90%; background: var(--brand); }

        /* 全能组件区 (capability) */
        .folder {
            padding: 8vw 5vw;
            max-width: 1400px;
            margin: 0 auto;
            flex-direction: column;
            gap: 60px;
        }

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

        .folder-crown .topic {
            font-size: 2.5rem;
            margin-bottom: 16px;
        }

        .folder-crown .ink {
            font-size: 1.1rem;
            color: var(--ink-medium);
        }

        .pane-stack {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
            width: 100%;
        }

        .pane {
            background: var(--bg-pure);
            border-radius: var(--radius-lg);
            padding: 40px;
            box-shadow: var(--shadow-soft);
            transition: var(--transition);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
        }

        .pane:hover, .pane:focus-within {
            transform: translateY(-8px);
            box-shadow: var(--shadow-hover);
        }

        .glyph-leaf {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--brand-light);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            color: var(--brand);
        }

        .glyph-leaf svg {
            width: 28px;
            height: 28px;
        }

        .pane .topic {
            font-size: 1.5rem;
            margin-bottom: 12px;
        }

        .pane .ink {
            color: var(--ink-medium);
            margin-bottom: 24px;
            flex-grow: 1;
        }

        .jump-arrow {
            color: var(--brand);
            text-decoration: none;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: auto;
            align-self: flex-start;
        }

        .jump-arrow::after {
            content: '→';
            transition: transform 0.2s ease;
        }

        .jump-arrow:hover::after {
            transform: translateX(5px);
        }

        /* 扩展阅读与路径承接 (AI与模板) */
        .path-stack {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
            gap: 32px;
            margin-top: 20px;
        }

        .sheet-wide {
            background: var(--bg-main);
            border-radius: var(--radius-lg);
            padding: 40px;
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            align-items: center;
            border: 1px solid var(--border);
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        .sheet-wide:hover, .sheet-wide:focus {
            background: var(--bg-pure);
            box-shadow: var(--shadow-hover);
            border-color: var(--brand-light);
        }

        .sheet-info {
            flex: 1;
            min-width: 200px;
        }

        .sheet-wide .topic {
            font-size: 1.4rem;
            margin-bottom: 8px;
            color: var(--brand);
        }

        .sheet-visual {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            background: var(--brand-gradient);
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            flex-shrink: 0;
        }

        /* 随时随地同步区 (steps) */
        .ream {
            background: var(--bg-pure);
            padding: 8vw 5vw;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            justify-content: center;
        }

        .sync-leaf {
            max-width: 1200px;
            width: 100%;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 5vw;
        }

        .sync-ink {
            flex: 1 1 40%;
            min-width: 300px;
        }

        .sync-ink .topic {
            font-size: 2.5rem;
            margin-bottom: 20px;
        }

        .sync-ink .ink {
            font-size: 1.1rem;
            color: var(--ink-medium);
            margin-bottom: 30px;
        }

        .sync-visual {
            flex: 1 1 50%;
            min-width: 300px;
            display: flex;
            justify-content: center;
            position: relative;
        }

        .device-stack {
            position: relative;
            width: 100%;
            max-width: 500px;
            aspect-ratio: 4/3;
        }

        .device {
            position: absolute;
            background: white;
            border-radius: 12px;
            box-shadow: 0 15px 35px rgba(0,0,0,0.1);
            border: 4px solid #333;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--brand);
        }

        .device-pc {
            width: 80%;
            height: 70%;
            top: 0;
            left: 10%;
            border-radius: 8px;
            border-width: 6px;
        }

        .device-pc::after {
            content: '';
            position: absolute;
            bottom: -20px;
            left: 50%;
            transform: translateX(-50%);
            width: 40px;
            height: 14px;
            background: #333;
            border-radius: 0 0 4px 4px;
        }

        .device-pad {
            width: 35%;
            height: 60%;
            bottom: 0;
            left: 0;
            z-index: 2;
        }

        .device-phone {
            width: 20%;
            height: 45%;
            bottom: -5%;
            right: 15%;
            z-index: 3;
            border-radius: 16px;
        }
        
        .sync-tab {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 60px;
            height: 60px;
            background: var(--brand-gradient);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            z-index: 10;
            box-shadow: 0 10px 20px rgba(228, 113, 180, 0.4);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { box-shadow: 0 0 0 0 rgba(228, 113, 180, 0.4); }
            70% { box-shadow: 0 0 0 20px rgba(228, 113, 180, 0); }
            100% { box-shadow: 0 0 0 0 rgba(228, 113, 180, 0); }
        }

        /* CTA 区 (aside) */
        .cover {
            padding: 8vw 5vw;
            display: flex;
            justify-content: center;
        }

        .sheet-stamp {
            background: var(--brand-gradient);
            border-radius: 32px;
            padding: 5vw 8vw;
            width: 100%;
            max-width: 1200px;
            text-align: center;
            color: white;
            box-shadow: var(--shadow-soft);
            position: relative;
            overflow: hidden;
        }

        .sheet-stamp::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -10%;
            width: 50%;
            height: 200%;
            background: rgba(255,255,255,0.1);
            transform: rotate(30deg);
        }

        .sheet-stamp .topic {
            font-size: 3rem;
            margin-bottom: 24px;
            position: relative;
            z-index: 2;
        }

        .sheet-stamp .ink {
            font-size: 1.25rem;
            opacity: 0.9;
            max-width: 600px;
            margin: 0 auto 40px;
            position: relative;
            z-index: 2;
        }
        
        .stamp-stamp {
            background: white;
            color: var(--brand);
            padding: 18px 48px;
            font-size: 1.2rem;
            font-weight: 800;
            border-radius: 100px;
            text-decoration: none;
            display: inline-block;
            transition: var(--transition);
            position: relative;
            z-index: 2;
        }

        .stamp-stamp:hover, .stamp-stamp:focus {
            transform: scale(1.05);
            box-shadow: 0 15px 30px rgba(0,0,0,0.15);
        }

        /* 页脚区域 */
        .base {
            background: var(--bg-pure);
            padding: 40px 5vw;
            border-top: 1px solid var(--border);
            text-align: center;
            color: var(--ink-light);
        }

        .base-stack {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 24px;
            margin-bottom: 20px;
        }
        
        .base-jump {
            color: var(--ink-medium);
            text-decoration: none;
            transition: var(--transition);
        }

        .base-jump:hover, .base-jump:focus {
            color: var(--brand);
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .canvas {
                flex-direction: column;
            }
            
            .canvas-ink-leaf {
                flex: 1 1 auto;
                padding: 15vw 5vw 8vw;
                text-align: center;
                align-items: center;
            }

            .canvas-deck {
                flex: 1 1 400px;
                width: 100%;
                /* 手机端改为底部斜切 */
                clip-path: polygon(0 0, 100% 0, 100% 90%, 0 100%);
            }

            .data-ui-leaf {
                transform: scale(0.8);
                position: relative;
                top: auto; left: auto;
                width: 100%; height: 100%;
            }
        }

        @media (max-width: 768px) {
            .index {
                display: none; /* 简化移动端，暂不实现汉堡菜单以保结构清晰 */
            }
            
            .path-stack {
                grid-template-columns: 1fr;
            }
            
            .sheet-stamp .topic {
                font-size: 2rem;
            }
            
            .sync-leaf {
                flex-direction: column;
            }
        }

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

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

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

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

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

.ribbon-crown a.ribbon-ribbon-jump {
    --aisite-shell-nav-padding: 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 a.ribbon-ribbon-jump,
.ribbon-crown a.ribbon-ribbon-jump:hover,
.ribbon-crown a.ribbon-ribbon-jump:focus,
.ribbon-crown a.ribbon-ribbon-jump:active,
.ribbon-crown a.ribbon-ribbon-jump.active,
.ribbon-crown a.ribbon-ribbon-jump[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{
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.06);
            padding: 15px 5vw;
        }

.ribbon-crown .ribbon-ribbon{
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            max-width: 1400px;
            margin: 0 auto;
            width: 100%;
        }

.ribbon-crown .ribbon-crest{
            flex: 0 0 auto;
            min-width: 0;
        }

.ribbon-crown .ribbon-crest img{
            height: 32px;
            display: block;
        }

.ribbon-crown .ribbon-index{
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            align-items: center;
        }

.ribbon-crown .ribbon-ribbon-jump{
            text-decoration: none;
            color: #4a4a4a;
            font-weight: 600;
            font-size: 0.95rem;
            transition: all 0.15s ease;
            position: relative;
        }

.ribbon-crown .ribbon-ribbon-jump:hover, .ribbon-crown .ribbon-ribbon-jump:focus{
            color: #e471b4;
        }

.ribbon-crown .ribbon-ribbon-jump.active{
            color: #e471b4;
        }

.ribbon-crown .ribbon-ribbon-jump.active::after{
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 100%;
            height: 2px;
            background: #e471b4;
            border-radius: 2px;
        }

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

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

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

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

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

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

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

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

.endnote-base .endnote-ink{
            word-break: break-word;
            overflow-wrap: break-word;
        }

.endnote-base p.endnote-ink{
            word-break: keep-all;
        }

.endnote-base{
            background: #ffffff;
            padding: 40px 5vw;
            border-top: 1px solid rgba(0, 0, 0, 0.06);
            text-align: center;
            color: #8c8c8c;
        }

.endnote-base .endnote-base-stack{
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 24px;
            margin-bottom: 20px;
        }

.endnote-base .endnote-base-jump{
            color: #4a4a4a;
            text-decoration: none;
            transition: all 0.15s ease;
        }

.endnote-base .endnote-base-jump:hover, .endnote-base .endnote-base-jump:focus{
            color: #e471b4;
        }