:root {
            --color-brand: #f39552;
            --color-brand-light: #fef5ed;
            --color-brand-hover: #e8823b;
            --color-text-apex: #1a202c;
            --color-text-byte: #4a5568;
            --color-text-muted: #718096;
            --color-bg-base: #fcfcfb;
            --color-bg-surface: #ffffff;
            --color-border: #edf2f7;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 23px;
            --shadow-base: 0 4px 12px rgba(0, 0, 0, 0.03), 0 1px 3px rgba(0, 0, 0, 0.02);
            --shadow-hover: 0 12px 30px rgba(243, 149, 82, 0.12), 0 4px 10px rgba(0, 0, 0, 0.04);
            --shadow-node: 0 10px 30px rgba(243, 149, 82, 0.08), 0 2px 8px rgba(0,0,0,0.02);
            --transition: all 0.35s ease;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--color-bg-base);
            color: var(--color-text-byte);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            word-break: break-word;
            overflow-wrap: break-word;
        }

        /* 强制复用导航栏样式 */
        .crown {
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid var(--color-border);
        }
        .helm {
            max-width: 1280px;
            margin: 0 auto;
            padding: 16px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }
        .core {
            min-width: 0;
        }
        .core img {
            height: 32px;
            display: block;
        }
        .chain {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            min-width: 0;
            align-items: center;
        }
        .wire {
            text-decoration: none;
            color: var(--color-text-byte);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .wire:hover, .wire.active {
            color: var(--color-brand);
        }

        /* 主容器 */
        .tunnel {
            width: 100%;
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        /* 第一屏舞台：常见故障与运行诊断 */
        .nexus {
            padding: 80px 24px 100px;
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            gap: 60px;
            align-items: center;
            flex-wrap: wrap;
            width: 100%;
            box-sizing: border-box;
        }
        .nexus .veil {
            flex: 1 1 500px;
            min-width: 0;
        }
        .apex {
            font-size: clamp(2.5rem, 5vw, 4rem);
            font-weight: 800;
            line-height: 1.15;
            color: var(--color-text-apex);
            letter-spacing: -0.02em;
            margin: 0 0 24px 0;
            white-space: normal;
        }
        .nexus .byte {
            font-size: 1.25rem;
            color: var(--color-text-muted);
            margin: 0 0 32px 0;
            max-width: 600px;
            line-height: 1.6;
        }

        /* 创意视觉拼贴 (mosaic_collage变体) */
        .mesh {
            flex: 1 1 400px;
            min-width: 0;
            position: relative;
            height: 460px;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .mesh-piece {
            position: absolute;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-hover);
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        .mesh-piece:hover {
            transform: translateY(-8px) scale(1.02);
        }
        .mesh-piece-1 {
            width: 240px;
            height: 280px;
            background: linear-gradient(135deg, var(--color-brand), #ffb27f);
            top: 20px;
            left: 10%;
            z-index: 2;
            padding: 32px;
            box-sizing: border-box;
            flex-direction: column;
            align-items: flex-start;
            justify-content: flex-end;
            color: white;
        }
        .mesh-piece-1 .glyph {
            width: 48px;
            height: 48px;
            fill: white;
            margin-bottom: auto;
            opacity: 0.9;
        }
        .mesh-piece-1 span {
            font-size: 1.5rem;
            font-weight: 700;
            line-height: 1.2;
        }
        .mesh-piece-2 {
            width: 220px;
            height: 200px;
            background: var(--color-bg-surface);
            bottom: 40px;
            right: 10%;
            z-index: 3;
            padding: 24px;
            box-sizing: border-box;
            border: 1px solid var(--color-border);
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
        }
        .mesh-piece-2 .glyph {
            width: 40px;
            height: 40px;
            stroke: var(--color-brand);
            stroke-width: 2;
            fill: none;
            margin-bottom: 16px;
        }
        .mesh-piece-2 span {
            font-weight: 600;
            color: var(--color-text-apex);
        }
        .mesh-piece-3 {
            width: 140px;
            height: 140px;
            background: var(--color-brand-light);
            top: 60px;
            right: 5%;
            z-index: 1;
            border-radius: 50%;
        }

        /* 模块容器 */
        .portal {
            padding: 80px 24px;
            max-width: 1280px;
            margin: 0 auto;
            width: 100%;
            box-sizing: border-box;
        }
        .portal-alt {
            background-color: var(--color-bg-surface);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-base);
            padding: 80px 60px;
            margin: 40px auto;
            width: calc(100% - 48px);
            max-width: 1232px;
        }
        .portal .apex-sub {
            font-size: clamp(1.8rem, 3vw, 2.5rem);
            font-weight: 700;
            color: var(--color-text-apex);
            margin: 0 0 16px 0;
            letter-spacing: -0.01em;
        }
        .portal .byte-sub {
            font-size: 1.1rem;
            color: var(--color-text-muted);
            max-width: 700px;
            margin: 0 0 48px 0;
        }

        /* 卡片池 */
        .pool {
            display: flex;
            gap: 32px;
            flex-wrap: wrap;
            min-width: 0;
        }
        .node {
            flex: 1 1 320px;
            min-width: 0;
            background: var(--color-bg-surface);
            border-radius: var(--radius-lg);
            padding: 40px 32px;
            box-shadow: var(--shadow-node);
            border: 1px solid rgba(255,255,255,0.8);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .portal-alt .node {
            background: var(--color-bg-base);
            box-shadow: none;
            border: 1px solid var(--color-border);
        }
        .node:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-hover);
        }
        .glyph-veil {
            width: 56px;
            height: 56px;
            background: var(--color-brand-light);
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
        }
        .glyph-veil svg {
            width: 28px;
            height: 28px;
            stroke: var(--color-brand);
            stroke-width: 2;
            fill: none;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        .node-apex {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--color-text-apex);
            margin: 0 0 16px 0;
        }
        .node-byte {
            color: var(--color-text-byte);
            margin: 0;
            font-size: 1rem;
            line-height: 1.6;
        }

        /* 步骤列表样式 */
        .lane {
            display: flex;
            flex-direction: column;
            gap: 16px;
            min-width: 0;
            margin-top: auto;
            padding-top: 24px;
        }
        .hop {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            min-width: 0;
        }
        .hop-dial {
            width: 24px;
            height: 24px;
            background: var(--color-brand);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .hop-byte {
            margin: 0;
            font-size: 0.95rem;
            color: var(--color-text-byte);
        }

        /* 状态徽章 */
        .pulse {
            display: inline-flex;
            align-items: center;
            padding: 6px 12px;
            background: rgba(243, 149, 82, 0.1);
            color: var(--color-brand-hover);
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 24px;
        }

        /* 页脚 */
        .wake {
            background-color: var(--color-bg-surface);
            border-top: 1px solid var(--color-border);
            padding: 60px 24px;
            margin-top: 40px;
        }
        .anchor {
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }
        .anchor-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--color-text-apex);
            letter-spacing: -0.02em;
        }
        .anchor-byte {
            color: var(--color-text-muted);
            font-size: 0.9rem;
            margin: 0;
        }

        /* 响应式断点 */
        @media (max-width: 1024px) {
            .nexus { padding: 60px 24px; gap: 40px; }
            .mesh { height: 360px; }
            .mesh-piece-1 { width: 200px; height: 240px; }
            .portal-alt { padding: 60px 40px; }
        }

        @media (max-width: 768px) {
            .helm { justify-content: center; gap: 16px; padding: 16px; }
            .chain { justify-content: center; gap: 16px; width: 100%; }
            .nexus { padding: 40px 24px; text-align: center; justify-content: center; }
            .nexus .byte { margin: 0 auto 32px auto; }
            .mesh { display: none; /* 移动端隐藏大图拼贴，保持阅读专注 */ }
            .portal { padding: 60px 24px; }
            .portal-alt { padding: 40px 24px; margin: 20px auto; width: 100%; border-radius: 0; border-left: none; border-right: none; }
            .pool { flex-direction: column; }
            .node { width: 100%; }
            .anchor { flex-direction: column; text-align: center; }
        }

.route-crown{
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(243, 149, 82, 0.1);
            padding: 16px 0;
        }

.route-crown .route-helm{
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
        }

.route-crown .route-core{
            display: flex;
            align-items: center;
        }

.route-crown .route-core img{
            height: 36px;
            width: auto;
            object-fit: contain;
        }

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

.route-crown .route-wire{
            font-weight: 500;
            color: #4a5568;
            font-size: 0.95rem;
            transition: all 0.35s ease;
            position: relative;
        }

.route-crown .route-wire:hover, .route-crown .route-wire.active{
            color: #f39552;
        }

.route-crown .route-wire.active::after{
            content: '';
            position: absolute;
            bottom: -6px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: #f39552;
            border-radius: 2px;
        }

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

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

.base-wake {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.7;
    color: var(--color-text-byte);
}
.base-wake,
.base-wake *,
.base-wake *::before,
.base-wake *::after {
    box-sizing: border-box;
}

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

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

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

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

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

.base-wake .base-byte{
            word-break: break-word;
            overflow-wrap: break-word;
        }

.base-wake .base-byte{
            word-break: keep-all; 
        }

.base-wake{
            background: #1a202c;
            color: rgba(255,255,255,0.7);
            padding: 60px 24px 40px;
            margin-top: 60px;
        }

.base-wake .base-base{
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 40px;
        }

.base-wake .base-base-brand{
            font-size: 1.5rem;
            font-weight: 800;
            color: white;
            letter-spacing: 1px;
        }

@media (max-width: 768px){.base-wake .base-base{ flex-direction: column; gap: 20px; text-align: center; }}