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.container{position:relative;z-index:1}.hero-badge{display:inline-flex;align-items:center;gap:.7rem;font-family:var(--font-mono);font-size:1.15rem;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);border:.05rem solid rgba(0,225,255,.22);background:#00e1ff0f;padding:.45rem 1.1rem;border-radius:5rem}.hero-badge b{color:#fff;letter-spacing:.12em}.handbook-hero h1{margin:2rem 0 0;font-size:clamp(34px,5.2vw,64px);font-weight:700;line-height:1.08;letter-spacing:-.02em}.handbook-hero h1 .grad{background:linear-gradient(90deg,#00e1ff,#7ae7ff 45%,#fff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.handbook-hero .hero-lead{margin:1.8rem 0 0;max-width:78rem;font-size:clamp(1.5rem,1.7vw,1.75rem);line-height:1.85;color:#f5f6faad}.handbook-hero .hero-lead b{color:#fff;font-weight:600}.hero-actions{margin-top:3rem;display:flex;flex-wrap:wrap;gap:1rem}.btn-ghost-dark{display:inline-flex;align-items:center;gap:.5rem;padding:1.25rem 2.2rem;border-radius:5rem;border:.1rem solid rgba(0,225,255,.28);background:#00e1ff0f;color:var(--cyan);font-size:1.4rem;font-weight:600;transition:all .15s}.btn-ghost-dark:hover{background:#00e1ff1f;border-color:#00e1ff80;color:#fff}.handbook-meta{margin-top:3.2rem;display:flex;flex-wrap:wrap;gap:1rem;align-items:center;font-family:var(--font-mono);font-size:1.15rem;letter-spacing:.04em;color:#f5f6fa75}.handbook-meta span{display:inline-flex;align-items:center;gap:.45rem;padding:.45rem .85rem;border:.05rem solid rgba(226,228,235,.12);border-radius:5rem;background:#ffffff0a}.handbook-meta .dot{width:.55rem;height:.55rem;border-radius:50%;background:#00e1ff;box-shadow:0 0 8px #00e1ff99}.doc-nav{position:sticky;top:calc(var(--envbar-h) + var(--header-h));z-index:20;background:#ffffffd1;backdrop-filter:saturate(1.2) blur(12px);border-bottom:.05rem solid rgba(226,228,235,.7)}.doc-nav .container{display:flex;align-items:center;gap:1.2rem;overflow-x:auto;padding:1.2rem 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#00334f0f}.bsp-layers{display:grid;grid-template-columns:repeat(5,1fr);gap:0}.bsp-layer{position:relative;display:flex;flex-direction:column;align-items:center;gap:.9rem;padding:2.2rem 1.2rem;text-align:center;border-right:.05rem solid #edf2f7}.bsp-layer:last-child{border-right:none}.bsp-layer .layer-icon{width:4.2rem;height:4.2rem;border-radius:.9rem;display:flex;align-items:center;justify-content:center;color:#fff;box-shadow:0 8px 20px #0b63f624}.bsp-layer:nth-child(1) .layer-icon{background:linear-gradient(135deg,#0b63f6,#00b8d4)}.bsp-layer:nth-child(2) .layer-icon{background:linear-gradient(135deg,#0b3f6b,#007f87)}.bsp-layer:nth-child(3) .layer-icon{background:linear-gradient(135deg,#007f87,#0b63f6)}.bsp-layer:nth-child(4) .layer-icon{background:linear-gradient(135deg,#4a2cf0,#0b63f6)}.bsp-layer:nth-child(5) .layer-icon{background:linear-gradient(135deg,#0b63f6,#00e1ff)}.bsp-layer h3,.bsp-layer h3,.bsp-layer h4{font-size:1.45rem;font-weight:700;color:#0a2540;margin:0}.bsp-layer 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/* R15 字号协调 · 本页主标题归入全站层级 */
section.handbook-hero div.container h1{font-size:clamp(40px,4.8vw,64px);line-height:1.16}
/* 区块标题统一节奏 */
.section-head h2,.sec-head h2{font-size:clamp(30px,3.2vw,44px);line-height:1.22}

/* R15 字号协调 · 本页主标题归入全站层级 */
body main section.handbook-hero div.container h1{font-size:clamp(40px,4.8vw,64px)!important;line-height:1.16!important}
/* 区块标题统一节奏 */
.section-head h2,.sec-head h2{font-size:clamp(30px,3.2vw,44px)!important;line-height:1.22!important}

/* R15 字号协调 · 本页主标题归入全站层级 */
body main section.handbook-hero div.container h1{font-size:clamp(40px,4.8vw,64px)!important;line-height:1.16!important}
/* 区块标题统一节奏 */
.section-head h2,.sec-head h2{font-size:clamp(30px,3.2vw,44px)!important;line-height:1.22!important}

/* R15 字号协调 · 本页主标题归入全站层级 */
body main section.handbook-hero div.container h1{font-size:clamp(40px,4.8vw,64px)!important;line-height:1.16!important}
/* 区块标题统一节奏 */
.section-head h2,.sec-head h2{font-size:clamp(30px,3.2vw,44px)!important;line-height:1.22!important}

/* R15 字号协调 · 本页主标题归入全站层级 */
body main section.handbook-hero div.container h1{font-size:clamp(40px,4.8vw,64px)!important;line-height:1.16!important}
/* 区块标题统一节奏 */
.section-head h2,.sec-head h2{font-size:clamp(30px,3.2vw,44px)!important;line-height:1.22!important}
/* type-scale:idempotent */
/* R15 字号协调 · 本页主标题归入全站层级 */
body main section.handbook-hero div.container h1{font-size:clamp(40px,4.8vw,64px)!important;line-height:1.16!important}
/* 区块标题统一节奏 */
.section-head h2,.sec-head h2{font-size:clamp(30px,3.2vw,44px)!important;line-height:1.22!important}

/* R15 对比度收尾：浅底 callout 内的 ghost 按钮改深色文字 */
.cp-callout .btn-ghost-dark{color:#00606b;border-color:#7fc0c8;background:#007f870f}

/* R15 对比度收尾：callout 内主按钮白底保底 */
.cp-callout .cp-callout-inner a.btn{background:#ffffff;color:#00334f;border:.1rem solid #dbe6ee}