/* ==========================================
   核心系统如何全面使用 AI 开发
   ========================================== */

.article-subtitle {
    max-width: 820px;
    margin: calc(var(--space-md) * -1) auto var(--space-lg);
    color: var(--text-secondary);
    font-size: clamp(1rem, 2vw, 1.18rem);
    line-height: 1.75;
}

.chapter-section[id] {
    scroll-margin-top: 140px;
}

.chapter-section h3 {
    font-family: 'Noto Serif SC', serif;
    color: var(--primary-dark);
}

.chapter-section p,
.chapter-section li {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.82;
}

.section-intro {
    max-width: 920px;
    margin: 0 auto var(--space-xl);
    font-size: 1rem !important;
}

.hero-statement {
    position: relative;
    overflow: hidden;
    padding: clamp(28px, 5vw, 54px);
    margin-bottom: var(--space-lg);
    color: white;
    background:
        radial-gradient(circle at 85% 10%, rgba(255, 255, 255, 0.18), transparent 32%),
        linear-gradient(135deg, hsl(var(--primary-hue) 54% 34%), hsl(var(--primary-hue) 62% 48%));
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.hero-statement::after {
    content: 'AI';
    position: absolute;
    right: 28px;
    bottom: -42px;
    color: rgba(255, 255, 255, 0.08);
    font-family: 'Noto Serif SC', serif;
    font-size: clamp(8rem, 20vw, 14rem);
    font-weight: 700;
    line-height: 1;
}

.hero-kicker {
    position: relative;
    z-index: 1;
    margin-bottom: var(--space-sm);
    color: rgba(255, 255, 255, 0.72);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    letter-spacing: 0.2em;
}

.hero-statement h2 {
    position: relative;
    z-index: 1;
    max-width: 920px;
    margin-bottom: var(--space-md);
    color: white;
    font-family: 'Noto Serif SC', serif;
    font-size: clamp(1.55rem, 3.8vw, 2.45rem);
    line-height: 1.45;
    white-space: nowrap;
}

.hero-statement p {
    position: relative;
    z-index: 1;
    max-width: 920px;
    margin: 0;
    color: rgba(255, 255, 255, 0.88);
    font-size: 1rem;
    white-space: nowrap;
}

.principle-grid,
.barrier-grid,
.risk-grid,
.gate-grid,
.foundation-grid,
.target-architecture,
.metric-grid {
    display: grid;
    gap: var(--space-md);
}

.principle-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.principle-card,
.barrier-card,
.risk-card,
.foundation-grid article,
.target-architecture article {
    position: relative;
    padding: var(--space-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.principle-card {
    padding-top: calc(var(--space-lg) + 8px);
    border-top: 3px solid var(--primary);
}

.card-index {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    color: hsl(var(--primary-hue) 40% 86%);
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.6rem;
    font-weight: 700;
}

.principle-card h3,
.barrier-card h3,
.risk-card h3,
.foundation-grid h3,
.target-architecture h3,
.evolution-path h3,
.roadmap-item h3 {
    margin: 0 0 var(--space-sm);
    font-size: 1.08rem;
}

.principle-card p,
.barrier-card p,
.risk-card p,
.foundation-grid p,
.target-architecture p,
.evolution-path p,
.roadmap-item p {
    margin: 0;
}

.rule-strip,
.handoff-line,
.trust-note,
.architecture-rule {
    margin-top: var(--space-lg);
    padding: var(--space-md) var(--space-lg);
    background: hsl(var(--primary-hue) 55% 96%);
    border: 1px solid var(--border-accent);
    border-left: 4px solid var(--primary);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    line-height: 1.75;
}

.rule-strip strong,
.handoff-line strong,
.trust-note strong {
    color: var(--primary-dark);
}

.current-map {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.arch-diagram-container {
    width: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(197, 106, 90, 0.15);
    background: #fafaf8;
}

.arch-iframe {
    display: block;
    width: 100%;
    height: 600px;
    border: none;
}

.current-summary-wrapper {
    display: grid;
    grid-template-columns: minmax(210px, 0.8fr) minmax(0, 2.2fr);
    gap: var(--space-md);
    align-items: stretch;
}

.current-summary {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 240px;
    padding: var(--space-xl);
    color: white;
    text-align: center;
    background: linear-gradient(160deg, #273a53, #172334);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.current-summary span {
    color: rgba(255, 255, 255, 0.66);
    font-size: 0.78rem;
    letter-spacing: 0.16em;
}

.current-summary strong {
    margin: var(--space-xs) 0;
    font-family: 'Noto Serif SC', serif;
    font-size: clamp(1.55rem, 4vw, 2.25rem);
}

.current-summary small {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.82rem;
    line-height: 1.65;
}

.barrier-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.barrier-card {
    border-top: 3px solid #c56a5a;
}

.barrier-label {
    margin-bottom: var(--space-sm);
    color: #a44d3f;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.1em;
}

.comparison-line {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    overflow: hidden;
    margin: var(--space-md) 0;
    background: var(--border-subtle);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
}

.comparison-line span {
    padding: var(--space-md);
    color: var(--text-secondary);
    background: var(--bg-card);
    font-size: 0.88rem;
    line-height: 1.65;
}

.quote-block {
    padding: var(--space-lg);
    text-align: center;
    background: linear-gradient(135deg, hsl(var(--primary-hue) 55% 97%), hsl(var(--accent-hue) 70% 97%));
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-lg);
}

.quote-block p {
    margin: 0;
    color: var(--text-primary);
    font-family: 'Noto Serif SC', serif;
    font-size: 1.05rem;
}

.workflow-loop {
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
    background: #172334;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.workflow-track {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.workflow-track span {
    padding: 7px 12px;
    color: white;
    background: rgba(255, 255, 255, 0.09);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius-xl);
    font-size: 0.83rem;
    font-weight: 500;
}

.workflow-track i {
    color: #7fb7df;
    font-style: normal;
}

.workflow-loop p {
    margin: var(--space-md) 0 0;
    color: rgba(255, 255, 255, 0.68);
    text-align: center;
    font-size: 0.85rem;
}

.lifecycle-table {
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.lifecycle-head,
.lifecycle-row {
    display: grid;
    grid-template-columns: 0.72fr 1.45fr 1.35fr 1.1fr;
    gap: var(--space-md);
    align-items: start;
    padding: var(--space-md) var(--space-lg);
}

.lifecycle-head {
    color: white;
    background: var(--primary-dark);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.06em;
}

.lifecycle-row {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-subtle);
}

.lifecycle-row:nth-child(odd) {
    background: var(--bg-elevated);
}

.lifecycle-row:last-child {
    border-bottom: 0;
}

.lifecycle-row strong {
    color: var(--primary-dark);
    font-size: 0.9rem;
}

.lifecycle-row p {
    margin: 0;
    font-size: 0.86rem;
    line-height: 1.68;
}

.handoff-line {
    display: flex;
    justify-content: space-between;
    gap: var(--space-md);
}

.handoff-line span {
    font-size: 0.9rem;
}

.risk-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-bottom: var(--space-xl);
}

.risk-card {
    border-top: 4px solid var(--primary);
}

.risk-card > span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 28px;
    margin-bottom: var(--space-sm);
    color: white;
    background: var(--primary);
    border-radius: var(--radius-xl);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    font-weight: 700;
}

.risk-card small {
    display: block;
    margin-top: var(--space-sm);
    color: var(--text-muted);
    font-size: 0.78rem;
    line-height: 1.65;
}

.risk-card.level-2 {
    border-top-color: #8a9f59;
}

.risk-card.level-2 > span {
    background: #788c49;
}

.risk-card.level-3 {
    border-top-color: #d49a45;
}

.risk-card.level-3 > span {
    background: #bd8131;
}

.risk-card.level-4 {
    border-top-color: #c65d50;
}

.risk-card.level-4 > span {
    background: #ad4b40;
}

.gate-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.gate-grid > div {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-md);
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
}

.gate-grid strong {
    color: var(--text-primary);
    font-size: 0.9rem;
}

.gate-grid span {
    color: var(--text-secondary);
    font-size: 0.84rem;
    line-height: 1.65;
}

.foundation-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.foundation-grid article {
    padding-top: calc(var(--space-lg) + 6px);
}

.foundation-grid article > span {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    color: hsl(var(--primary-hue) 35% 84%);
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.25rem;
    font-weight: 700;
}

.source-of-truth {
    margin-top: var(--space-xl);
    padding: var(--space-lg);
    background: #172334;
    border-radius: var(--radius-lg);
}

.source-of-truth h3 {
    margin-top: 0;
    color: white;
}

.truth-flow {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
}

.truth-flow span {
    padding: 7px 10px;
    color: white;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
}

.truth-flow i {
    color: #7fb7df;
    font-style: normal;
    font-weight: 700;
}

.source-of-truth p {
    margin: 0;
    color: rgba(255, 255, 255, 0.66);
    font-size: 0.85rem;
}

.evolution-path {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.evolution-path article {
    position: relative;
    padding: var(--space-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.evolution-path article::after {
    content: '→';
    position: absolute;
    top: 50%;
    right: calc(var(--space-md) * -1 - 7px);
    z-index: 2;
    color: var(--primary);
    font-weight: 700;
    transform: translateY(-50%);
}

.evolution-path article:last-child::after {
    display: none;
}

.evolution-path article > span {
    display: inline-block;
    margin-bottom: var(--space-sm);
    color: var(--primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.evolution-path article > strong {
    display: block;
    margin-top: var(--space-md);
    color: var(--text-primary);
    font-size: 0.84rem;
    line-height: 1.6;
}

.target-architecture {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.target-architecture article {
    padding-left: calc(var(--space-xl) + 28px);
}

.unit-number {
    position: absolute;
    top: var(--space-lg);
    left: var(--space-lg);
    color: var(--primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    font-weight: 700;
}

.target-architecture .agent-unit {
    border-left: 4px solid #4d83aa;
}

.target-architecture .core-unit {
    border-left: 4px solid #bd6f55;
}

.target-architecture .integration-unit {
    border-left: 4px solid #7d9254;
}

.target-architecture .data-unit {
    border-left: 4px solid #7b6ba8;
}

.architecture-rule {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-md);
    padding: var(--space-lg);
}

.architecture-rule div {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.architecture-rule strong {
    color: var(--primary-dark);
}

.architecture-rule span {
    color: var(--text-secondary);
    font-size: 0.84rem;
    line-height: 1.65;
}

.roadmap {
    position: relative;
    margin-bottom: var(--space-xl);
}

.roadmap::before {
    content: '';
    position: absolute;
    top: 10px;
    bottom: 10px;
    left: 110px;
    width: 2px;
    background: linear-gradient(var(--primary), hsl(var(--primary-hue) 35% 82%));
}

.roadmap-item {
    display: grid;
    grid-template-columns: 92px 1fr;
    gap: 36px;
    position: relative;
    margin-bottom: var(--space-md);
}

.roadmap-item::before {
    content: '';
    position: absolute;
    top: 24px;
    left: 104px;
    z-index: 2;
    width: 14px;
    height: 14px;
    background: var(--bg-card);
    border: 3px solid var(--primary);
    border-radius: 50%;
}

.roadmap-day {
    padding-top: 20px;
    color: var(--primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    font-weight: 700;
    text-align: right;
}

.roadmap-item > div:last-child {
    padding: var(--space-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.roadmap-item strong {
    display: block;
    margin-top: var(--space-sm);
    color: var(--primary-dark);
    font-size: 0.86rem;
}

.roadmap-item.future > div:last-child {
    background: hsl(var(--primary-hue) 55% 97%);
    border-color: var(--border-accent);
}

.metric-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.metric-grid div {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: var(--space-md);
    background: var(--bg-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
}

.metric-grid span {
    color: var(--primary);
    font-size: 0.78rem;
    font-weight: 700;
}

.metric-grid strong {
    color: var(--text-secondary);
    font-size: 0.84rem;
    font-weight: 500;
    line-height: 1.6;
}

.final-card {
    position: relative;
    overflow: hidden;
    padding: clamp(30px, 5vw, 54px);
    text-align: center;
    background: linear-gradient(135deg, hsl(var(--primary-hue) 54% 96%), hsl(var(--accent-hue) 65% 96%));
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.final-card-label {
    margin-bottom: var(--space-sm);
    color: var(--primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.16em;
}

.final-card h2 {
    margin-bottom: var(--space-md);
    color: var(--primary-dark);
    font-family: 'Noto Serif SC', serif;
    font-size: clamp(1.45rem, 3vw, 2rem);
}

.final-card p {
    max-width: 820px;
    margin: 0 auto var(--space-sm);
}

.final-card p:last-child {
    margin-bottom: 0;
    color: var(--text-primary);
}

@media (max-width: 980px) {
    .principle-grid,
    .risk-grid,
    .evolution-path {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .foundation-grid,
    .gate-grid,
    .metric-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .evolution-path article::after {
        display: none;
    }

    .lifecycle-head,
    .lifecycle-row {
        grid-template-columns: 0.72fr 1.35fr 1.35fr;
    }

    .lifecycle-head span:last-child,
    .lifecycle-row p:last-child {
        display: none;
    }
}

@media (max-width: 760px) {
    .principle-grid,
    .barrier-grid,
    .risk-grid,
    .gate-grid,
    .foundation-grid,
    .evolution-path,
    .target-architecture,
    .metric-grid,
    .architecture-rule,
    .current-map,
    .current-summary-wrapper,
    .comparison-line {
        grid-template-columns: 1fr;
    }

    .current-summary {
        min-height: 190px;
    }

    .arch-iframe {
        height: 420px;
    }

    .lifecycle-head {
        display: none;
    }

    .lifecycle-row {
        grid-template-columns: 1fr;
        gap: var(--space-xs);
        padding: var(--space-lg);
    }

    .lifecycle-row p:last-child {
        display: block;
    }

    .lifecycle-row p::before {
        display: block;
        margin-bottom: 2px;
        color: var(--text-muted);
        font-size: 0.72rem;
        font-weight: 700;
    }

    .lifecycle-row p:nth-child(2)::before {
        content: 'AI';
    }

    .lifecycle-row p:nth-child(3)::before {
        content: '人工门禁';
    }

    .lifecycle-row p:nth-child(4)::before {
        content: '产物';
    }

    .handoff-line {
        flex-direction: column;
    }

    .workflow-track i {
        display: none;
    }

    .roadmap::before,
    .roadmap-item::before {
        display: none;
    }

    .roadmap-item {
        grid-template-columns: 1fr;
        gap: var(--space-xs);
    }

    .roadmap-day {
        padding: 0;
        text-align: left;
    }
}

@media (max-width: 520px) {
    .hero-statement,
    .principle-card,
    .barrier-card,
    .risk-card,
    .foundation-grid article,
    .target-architecture article,
    .evolution-path article,
    .roadmap-item > div:last-child {
        padding: var(--space-md);
    }

    .hero-statement h2 {
        white-space: normal;
    }

    .target-architecture article {
        padding-top: calc(var(--space-xl) + 8px);
    }

    .unit-number {
        top: var(--space-md);
        left: var(--space-md);
    }

    .hero-statement::after {
        right: 8px;
        font-size: 8rem;
    }

    .hero-statement p {
        white-space: normal;
    }
}

/* ==========================================
   测试环境数据
   ========================================== */
.test-data-challenge {
    margin-bottom: var(--space-xl);
    padding: var(--space-xl);
    background: linear-gradient(145deg, #172334, #1f2f44);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

.challenge-head {
    max-width: 820px;
    margin-bottom: var(--space-lg);
}

.challenge-head span {
    color: #f0a868;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
}

.challenge-head h3 {
    margin: 6px 0 var(--space-sm);
    color: #FFFFFF;
}

.challenge-head p {
    margin: 0;
    color: rgba(255, 255, 255, 0.72);
    font-size: 0.88rem;
    line-height: 1.75;
}

.challenge-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-md);
}

.challenge-card {
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
}

.challenge-card span {
    display: inline-block;
    padding: 3px 9px;
    margin-bottom: var(--space-sm);
    color: #ffcf9e;
    background: rgba(240, 168, 104, 0.14);
    border-radius: 999px;
    font-size: 0.68rem;
    font-weight: 700;
}

.challenge-card h4 {
    margin: 0 0 var(--space-sm);
    color: #FFFFFF;
    font-size: 0.94rem;
    line-height: 1.45;
}

.challenge-card p {
    margin: 0;
    color: rgba(255, 255, 255, 0.68);
    font-size: 0.8rem;
    line-height: 1.65;
}

.data-layer-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-md);
    margin: var(--space-lg) 0 var(--space-xl);
}

.data-layer {
    display: flex;
    flex-direction: column;
    padding: var(--space-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.data-layer:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.layer-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.layer-header span {
    flex: 0 0 auto;
    padding: 4px 9px;
    color: #FFFFFF;
    background: var(--primary);
    border-radius: 999px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.66rem;
    font-weight: 700;
    white-space: nowrap;
}

.data-layer.layer-mock .layer-header span { background: #6a8db5; }
.data-layer.layer-masked .layer-header span { background: #7d9254; }
.data-layer.layer-synthetic .layer-header span { background: #9a7bb5; }

.layer-header h4 {
    margin: 0;
    color: var(--text-primary);
    font-size: 0.94rem;
    line-height: 1.4;
}

.data-layer > p {
    flex: 1;
    margin: 0 0 var(--space-sm);
    font-size: 0.84rem;
    line-height: 1.7;
}

.layer-note {
    padding: var(--space-sm) var(--space-md);
    color: var(--text-muted);
    background: var(--bg-elevated);
    border-left: 3px solid var(--border-medium);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 0.74rem;
    line-height: 1.6;
}

.data-layer.layer-base .layer-note { border-left-color: var(--primary); }
.data-layer.layer-mock .layer-note { border-left-color: #6a8db5; }
.data-layer.layer-masked .layer-note { border-left-color: #7d9254; }
.data-layer.layer-synthetic .layer-note { border-left-color: #9a7bb5; }

.test-data-principles {
    margin: var(--space-xl) 0;
    padding: var(--space-xl);
    background: linear-gradient(145deg, hsl(var(--primary-hue) 55% 97%), hsl(var(--accent-hue) 65% 96%));
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-xl);
}

.principles-head {
    margin-bottom: var(--space-lg);
}

.principles-head span {
    color: var(--primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.1em;
}

.principles-head h3 {
    margin: 5px 0 0;
    color: var(--primary-dark);
    font-size: 1.15rem;
}

.principle-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-md);
}

.test-principle {
    display: grid;
    grid-template-columns: 32px 1fr;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-md) var(--space-md) var(--space-lg);
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid var(--border-subtle);
    border-left: 3px solid var(--primary);
    border-radius: var(--radius-md);
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.test-principle:hover {
    box-shadow: 0 4px 16px hsla(var(--primary-hue), 50%, 30%, 0.1);
    transform: translateY(-2px);
}

.test-principle > span {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    color: var(--primary);
    background: hsl(var(--primary-hue) 55% 95%);
    border-radius: 8px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    font-weight: 700;
}

.principle-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.test-principle b {
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 700;
    line-height: 1.4;
}

.test-principle p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.78rem;
    line-height: 1.6;
}

.data-flow-diagram {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
    gap: var(--space-sm);
    align-items: stretch;
    margin: var(--space-xl) 0;
}

.data-flow-diagram .flow-stage {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 150px;
    padding: var(--space-md);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-top: 3px solid var(--primary);
    border-radius: var(--radius-md);
    text-align: center;
}

.data-flow-diagram .flow-stage.mask { border-top-color: #e0884c; }
.data-flow-diagram .flow-stage.enrich { border-top-color: #7d9254; }
.data-flow-diagram .flow-stage.test { border-top-color: #9a7bb5; }

.data-flow-diagram .flow-stage span {
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.64rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.data-flow-diagram .flow-stage strong {
    margin: 5px 0;
    color: var(--text-primary);
    font-size: 0.84rem;
    line-height: 1.4;
}

.data-flow-diagram .flow-stage small {
    color: var(--text-muted);
    font-size: 0.68rem;
    line-height: 1.5;
}

.data-flow-diagram > i {
    align-self: center;
    color: var(--primary);
    font-size: 1.1rem;
    font-style: normal;
    font-weight: 700;
}

.test-data-summary {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: var(--space-lg);
    align-items: center;
    margin-top: var(--space-lg);
    padding: var(--space-lg) var(--space-xl);
    background: #FFF5E5;
    border: 1px solid #E9D2A9;
    border-radius: var(--radius-md);
}

.test-data-summary span {
    color: #A6661D;
    font-size: 0.76rem;
    font-weight: 700;
    white-space: nowrap;
}

.test-data-summary p {
    margin: 0;
    color: var(--text-primary);
    font-size: 0.88rem;
    line-height: 1.75;
}

.test-data-summary strong {
    color: #7a4e14;
}

/* 测试数据响应式 */
@media (max-width: 980px) {
    .challenge-grid,
    .principle-list {
        grid-template-columns: 1fr;
    }
    .data-layer-grid {
        grid-template-columns: 1fr;
    }
    .data-flow-diagram {
        grid-template-columns: 1fr;
    }
    .data-flow-diagram > i {
        text-align: center;
        transform: rotate(90deg);
    }
}

@media (max-width: 760px) {
    .test-data-challenge,
    .test-data-principles {
        padding: var(--space-lg);
    }
    .data-flow-diagram .flow-stage {
        min-height: 120px;
    }
    .test-data-summary {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }
}

/* ==========================================
   平台能力解耦与代码自检（由 part9 迁入）
   ========================================== */

.execution-heading {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
    gap: var(--space-xl);
    align-items: end;
    margin-bottom: var(--space-xl);
}

.execution-heading h2 {
    margin-bottom: 0;
}

.execution-heading > p {
    margin: 0;
    padding-left: var(--space-lg);
    color: var(--text-secondary);
    border-left: 3px solid #D98255;
    font-size: 0.94rem;
    line-height: 1.85;
}

.eyebrow {
    color: #9E4C2E;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.1em;
}

.minor-heading {
    margin: var(--space-2xl) 0 var(--space-lg);
    color: var(--text-primary);
    font-family: 'Noto Serif SC', serif;
}

.lead-paragraph {
    max-width: 920px;
    margin: 0 0 var(--space-xl);
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.85;
}

.closing-quote {
    margin: var(--space-xl) 0 0;
    padding: var(--space-xl);
    text-align: center;
    background: #FFF7F0;
    border: 1px solid #EBD6C9;
    border-radius: var(--radius-lg);
}

.closing-quote p {
    margin: 0;
    color: #633A2B;
    font-family: 'Noto Serif SC', serif;
    font-size: 1.12rem;
    font-weight: 600;
    line-height: 1.9;
}

.prompt-example {
    overflow: hidden;
    background: #F7F3F0;
    border: 1px solid #DED4CD;
    border-radius: var(--radius-lg);
}

.prompt-example-head {
    display: flex;
    gap: var(--space-md);
    align-items: center;
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid #DED4CD;
}

.prompt-example-head span {
    color: #A95A3A;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.66rem;
    font-weight: 700;
}

.prompt-example pre {
    margin: 0;
    padding: var(--space-xl);
    overflow-x: auto;
}

.prompt-example code {
    color: #3F4349;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    line-height: 1.85;
}

.decoupling-steps {
    display: grid;
    gap: var(--space-md);
    margin: var(--space-lg) 0 var(--space-xl);
}

.decoupling-steps > article {
    display: grid;
    grid-template-columns: 64px minmax(0, 1fr);
    gap: var(--space-lg);
    padding: var(--space-xl);
    background: #FFFDFC;
    border: 1px solid #E3DAD4;
    border-radius: var(--radius-lg);
}

.step-index {
    display: grid;
    width: 58px;
    height: 58px;
    place-items: center;
    color: #FFFFFF;
    background: #B9613F;
    border-radius: 50%;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.86rem;
    font-weight: 700;
    box-shadow: 0 0 0 6px #F7EAE3;
}

.decoupling-steps article span {
    color: #A85838;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem;
    font-weight: 700;
}

.decoupling-steps h3 {
    margin: 5px 0 var(--space-sm);
    color: #50372D;
    font-family: 'Noto Serif SC', serif;
    font-size: 1.08rem;
}

.decoupling-steps ol {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 5px var(--space-xl);
    margin: 0;
    padding-left: 1.2rem;
    color: var(--text-secondary);
    font-size: 0.79rem;
    line-height: 1.75;
}

.migration-gates {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
    gap: var(--space-sm);
    align-items: stretch;
    margin: var(--space-xl) 0;
    padding: var(--space-lg);
    background: #30343A;
    border-radius: var(--radius-lg);
}

.migration-gates > b {
    align-self: center;
    color: #F0B36B;
}

.migration-gates > div {
    padding: var(--space-md);
    background: #393D43;
    border: 1px solid #50545B;
    border-radius: var(--radius-md);
}

.migration-gates span,
.migration-gates strong {
    display: block;
}

.migration-gates span {
    margin-bottom: 5px;
    color: #F0B36B;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.62rem;
    font-weight: 700;
}

.migration-gates strong {
    margin-bottom: 4px;
    color: #FFFFFF;
    font-size: 0.82rem;
}

.migration-gates p {
    margin: 0;
    color: #C5C9CE;
    font-size: 0.69rem;
    line-height: 1.6;
}

.ai-transformation-rules {
    display: grid;
    grid-template-columns: 190px minmax(0, 1fr);
    gap: var(--space-xl);
    align-items: start;
    margin: var(--space-xl) 0;
    padding: var(--space-xl);
    background: #EFF4F5;
    border: 1px solid #D2DFE2;
    border-left: 5px solid #59717E;
    border-radius: var(--radius-lg);
}

.ai-transformation-rules > span {
    color: #4B6572;
    font-family: 'Noto Serif SC', serif;
    font-size: 1.05rem;
    font-weight: 700;
}

.ai-transformation-rules ul {
    margin: 0;
    padding-left: 1.15rem;
    color: var(--text-secondary);
    font-size: 0.8rem;
    line-height: 1.8;
}

.ai-transformation-rules li + li {
    margin-top: var(--space-sm);
}

.ai-transformation-rules strong {
    color: #405B68;
}

.transformation-quote {
    border-left-color: #5B7380;
}


.platform-audit {
    margin: var(--space-xl) 0 var(--space-2xl);
    padding: var(--space-xl);
    background: #F7F3EF;
    border: 1px solid #DFD4CB;
    border-radius: var(--radius-lg);
}

.platform-audit-heading {
    display: grid;
    grid-template-columns: minmax(280px, 0.85fr) minmax(0, 1.15fr);
    gap: var(--space-xl);
    align-items: end;
    margin-bottom: var(--space-lg);
}

.platform-audit-heading span {
    display: block;
    margin-bottom: var(--space-sm);
    color: #A85838;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.platform-audit-heading h3 {
    margin: 0;
    color: #543B31;
    font-family: 'Noto Serif SC', serif;
    font-size: 1.25rem;
    line-height: 1.55;
}

.platform-audit-heading > p {
    margin: 0;
    padding-left: var(--space-lg);
    color: var(--text-secondary);
    border-left: 4px solid #C56C47;
    font-size: 0.84rem;
    line-height: 1.8;
}

.audit-dimensions {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: var(--space-lg);
    padding: var(--space-md);
    background: #FFFDFC;
    border: 1px solid #E2D9D2;
    border-radius: var(--radius-md);
}

.audit-dimensions::before {
    display: inline-flex;
    align-items: center;
    margin-right: var(--space-xs);
    color: #8A4C34;
    content: "每项必查";
    font-size: 0.72rem;
    font-weight: 700;
}

.audit-dimensions span {
    padding: 5px 9px;
    color: #65554D;
    background: #F4EFEA;
    border: 1px solid #E0D5CC;
    border-radius: var(--radius-xl);
    font-size: 0.68rem;
}

.disposition-legend {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.disposition-legend article {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 2px var(--space-sm);
    padding: var(--space-md);
    background: #FFFDFC;
    border: 1px solid #E1D8D1;
    border-radius: var(--radius-md);
}

.disposition-legend article > span {
    grid-row: 1 / 3;
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    color: #FFFFFF;
    background: #B8613F;
    border-radius: 50%;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem;
    font-weight: 700;
}

.disposition-legend strong {
    color: var(--text-primary);
    font-size: 0.78rem;
}

.disposition-legend p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.68rem;
    line-height: 1.55;
}

.platform-matrix-wrap {
    overflow-x: auto;
    border: 1px solid #DAD1CA;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.platform-matrix {
    width: 100%;
    min-width: 1040px;
    border-collapse: collapse;
    background: #FFFFFF;
}

.platform-matrix th,
.platform-matrix td {
    padding: 14px 15px;
    text-align: left;
    vertical-align: top;
    border-right: 1px solid #E6DFDA;
    border-bottom: 1px solid #E6DFDA;
    font-size: 0.76rem;
    line-height: 1.68;
}

.platform-matrix th:last-child,
.platform-matrix td:last-child {
    border-right: 0;
}

.platform-matrix tbody tr:last-child td {
    border-bottom: 0;
}

.platform-matrix th {
    color: #FFFFFF;
    background: #34383E;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.04em;
}

.platform-matrix tbody tr:nth-child(even) {
    background: #FCFAF8;
}

.platform-matrix td:first-child {
    width: 185px;
}

.platform-matrix td:nth-child(2) {
    width: 220px;
}

.platform-matrix td:nth-child(3) {
    width: 31%;
}

.platform-matrix td strong {
    display: block;
    color: #4D3931;
    font-size: 0.8rem;
}

.platform-matrix code {
    padding: 1px 4px;
    color: #79513F;
    background: #F4ECE6;
    border-radius: 3px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem;
}

.decision-tag {
    display: inline-flex;
    width: fit-content;
    margin-top: 6px;
    padding: 3px 7px;
    border: 1px solid;
    border-radius: var(--radius-xl);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.6rem;
    font-weight: 700;
}

.decision-keep {
    color: #456351;
    background: #EDF6F0;
    border-color: #C9DDCF;
}

.decision-adapter {
    color: #526978;
    background: #EEF4F7;
    border-color: #CEDBE2;
}

.decision-migrate {
    color: #8A5536;
    background: #FFF2E9;
    border-color: #E6C8B5;
}

.tenant-redline {
    display: grid;
    grid-template-columns: 190px minmax(0, 1fr);
    gap: var(--space-xl);
    align-items: center;
    margin-top: var(--space-lg);
    padding: var(--space-lg);
    color: #FFFFFF;
    background: #30343A;
    border: 1px solid #454A51;
    border-left: 6px solid #DF8658;
    border-radius: var(--radius-lg);
}

.tenant-redline > span {
    color: #F0B36B;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.67rem;
    font-weight: 700;
    letter-spacing: 0.07em;
}

.tenant-redline strong {
    display: block;
    margin-bottom: 4px;
    color: #FFFFFF;
    font-size: 0.88rem;
}

.tenant-redline p {
    margin: 0;
    color: #C9CDD2;
    font-size: 0.76rem;
    line-height: 1.7;
}

@media (max-width: 960px) {
    .platform-audit-heading {
        grid-template-columns: 1fr;
    }

    .platform-audit-heading > p {
        padding: var(--space-md);
        background: #FFFDFC;
        border-left-width: 4px;
    }

    .disposition-legend {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 680px) {
    .platform-audit {
        padding: var(--space-lg);
    }

    .disposition-legend,
    .tenant-redline {
        grid-template-columns: 1fr;
    }

    .audit-dimensions {
        align-items: flex-start;
        flex-direction: column;
    }
}

/* ==========================================
   实战操作篇 · AI 代码定期自检
   ========================================== */

.audit-principle-strip {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
    gap: var(--space-md);
    align-items: stretch;
    margin: var(--space-xl) 0 var(--space-2xl);
    padding: var(--space-lg);
    color: #FFFFFF;
    background: #30343A;
    border: 1px solid #454A51;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.audit-principle-strip > b {
    align-self: center;
    color: #F0B36B;
}

.audit-principle-strip article {
    padding: var(--space-md);
    background: #393D43;
    border: 1px solid #50555C;
    border-radius: var(--radius-md);
    text-align: center;
}

.audit-principle-strip span,
.audit-principle-strip strong {
    display: block;
}

.audit-principle-strip span {
    margin-bottom: 4px;
    color: #F0B36B;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    font-weight: 700;
}

.audit-principle-strip strong {
    font-size: 0.82rem;
}

.audit-cadence-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-sm);
    margin: var(--space-lg) 0 var(--space-xl);
}

.audit-cadence-grid article {
    display: flex;
    min-width: 0;
    padding: var(--space-lg);
    flex-direction: column;
    background: #FAF8F5;
    border: 1px solid #E1D8D1;
    border-top: 4px solid #C56B45;
    border-radius: var(--radius-lg);
}

.audit-cadence-grid article > span {
    width: fit-content;
    margin-bottom: var(--space-md);
    padding: 4px 8px;
    color: #A65234;
    background: #FFF0E7;
    border-radius: var(--radius-xl);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.63rem;
    font-weight: 700;
}

.audit-cadence-grid h3 {
    margin: 0 0 var(--space-sm);
    color: #4F3930;
    font-size: 0.93rem;
}

.audit-cadence-grid p {
    margin: 0 0 var(--space-md);
    color: var(--text-secondary);
    font-size: 0.76rem;
    line-height: 1.7;
}

.audit-cadence-grid small {
    display: block;
    margin-top: auto;
    padding-top: var(--space-sm);
    color: #7C6256;
    border-top: 1px solid #E4DAD3;
    font-size: 0.67rem;
}

.audit-skill-contract {
    display: grid;
    grid-template-columns: minmax(220px, 0.7fr) minmax(0, 1.3fr);
    gap: var(--space-lg) var(--space-xl);
    margin: var(--space-xl) 0;
    padding: var(--space-xl);
    background: #EFF4F5;
    border: 1px solid #D1DEE2;
    border-left: 6px solid #59727F;
    border-radius: var(--radius-lg);
}

.audit-skill-contract > div span {
    display: block;
    margin-bottom: var(--space-sm);
    color: #4D6875;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    font-weight: 700;
}

.audit-skill-contract h3 {
    margin: 0;
    color: #405A67;
    font-family: 'Noto Serif SC', serif;
    font-size: 1.1rem;
    line-height: 1.55;
}

.audit-skill-contract h3 code {
    padding: 2px 5px;
    color: #3F5D6B;
    background: rgba(255, 255, 255, 0.72);
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8em;
}

.audit-skill-contract > p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.82rem;
    line-height: 1.8;
}

.audit-skill-contract ul {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-sm);
    margin: 0;
    padding: 0;
    list-style: none;
}

.audit-skill-contract li {
    padding: var(--space-md);
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid #D7E1E4;
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    line-height: 1.7;
}

.audit-skill-contract li strong {
    color: #405E6C;
}

.audit-prompt {
    margin: var(--space-xl) 0;
}

.audit-evidence-gate {
    display: grid;
    grid-template-columns: 170px minmax(280px, 0.95fr) minmax(0, 1.05fr);
    gap: var(--space-lg);
    align-items: center;
    margin: var(--space-xl) 0 var(--space-2xl);
    padding: var(--space-lg);
    color: #FFFFFF;
    background: #32363B;
    border: 1px solid #484D54;
    border-left: 6px solid #E08758;
    border-radius: var(--radius-lg);
}

.audit-evidence-gate span {
    color: #F0B36B;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.67rem;
    font-weight: 700;
    letter-spacing: 0.07em;
}

.audit-evidence-gate strong {
    font-size: 0.88rem;
    line-height: 1.65;
}

.audit-evidence-gate p {
    margin: 0;
    color: #C7CBD0;
    font-size: 0.75rem;
    line-height: 1.7;
}

.audit-summary-table-wrap {
    margin: var(--space-lg) 0 var(--space-xl);
    overflow-x: auto;
    border: 1px solid #DED6D0;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.audit-summary-table {
    width: 100%;
    min-width: 820px;
    border-collapse: collapse;
    background: #FFFFFF;
}

.audit-summary-table th,
.audit-summary-table td {
    padding: 13px 15px;
    text-align: left;
    vertical-align: top;
    border-right: 1px solid #E7E0DB;
    border-bottom: 1px solid #E7E0DB;
    font-size: 0.76rem;
    line-height: 1.65;
}

.audit-summary-table th:last-child,
.audit-summary-table td:last-child {
    border-right: 0;
}

.audit-summary-table tbody tr:last-child td {
    border-bottom: 0;
}

.audit-summary-table th {
    color: #FFFFFF;
    background: #34383E;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem;
    font-weight: 600;
}

.audit-summary-table tbody tr:nth-child(even) {
    background: #FCFAF8;
}

.audit-summary-table td:first-child {
    width: 80px;
}

.audit-summary-table td:nth-child(2) {
    width: 27%;
    color: #4E3930;
    font-weight: 600;
}

.audit-summary-table code,
.audit-detail-body code {
    padding: 1px 4px;
    color: #77503E;
    background: #F4ECE6;
    border-radius: 3px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.88em;
}

.priority-p0,
.priority-p1,
.priority-p2 {
    display: inline-flex;
    min-width: 36px;
    justify-content: center;
    padding: 3px 7px;
    border: 1px solid;
    border-radius: var(--radius-xl);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.62rem;
    font-weight: 700;
}

.priority-p0 {
    color: #9E3E31;
    background: #FFF0ED;
    border-color: #E5BAB3;
}

.priority-p1 {
    color: #8B5B26;
    background: #FFF7E8;
    border-color: #E7D2A6;
}

.priority-p2 {
    color: #516775;
    background: #EFF5F7;
    border-color: #CEDCE2;
}

.audit-example-stack {
    display: grid;
    gap: var(--space-sm);
    margin: var(--space-xl) 0 var(--space-2xl);
}

.audit-example-stack details {
    overflow: hidden;
    background: #FFFDFC;
    border: 1px solid #E1D8D1;
    border-radius: var(--radius-lg);
}

.audit-example-stack details[open] {
    border-color: #D7B8A8;
    box-shadow: var(--shadow-sm);
}

.audit-example-stack summary {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: var(--space-md);
    align-items: center;
    padding: var(--space-lg);
    cursor: pointer;
    list-style: none;
}

.audit-example-stack summary::-webkit-details-marker {
    display: none;
}

.audit-example-stack summary > span {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    color: #FFFFFF;
    background: #B9613F;
    border-radius: 50%;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem;
    font-weight: 700;
}

.audit-example-stack summary > strong {
    color: #50392F;
    font-size: 0.86rem;
    line-height: 1.55;
}

.audit-example-stack summary > b {
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.61rem;
    font-weight: 500;
}

.audit-detail-body {
    padding: 0 var(--space-xl) var(--space-xl) calc(var(--space-xl) + 54px);
    color: var(--text-secondary);
    border-top: 1px solid #E8E0DB;
    font-size: 0.79rem;
    line-height: 1.8;
}

.audit-detail-body > p:first-child {
    margin-top: var(--space-lg);
}

.audit-detail-body ol {
    padding-left: 1.2rem;
}

.audit-detail-body pre {
    margin: var(--space-md) 0 0;
    padding: var(--space-md);
    overflow-x: auto;
    color: #ECEDEF;
    background: #30343A;
    border-radius: var(--radius-md);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    line-height: 1.65;
}

.audit-detail-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-sm);
    margin: var(--space-md) 0;
}

.audit-detail-grid article {
    padding: var(--space-md);
    background: #F7F3EF;
    border: 1px solid #E1D7CF;
    border-radius: var(--radius-md);
}

.audit-detail-grid span,
.audit-detail-grid strong {
    display: block;
}

.audit-detail-grid span {
    color: #A65A3B;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.64rem;
}

.audit-detail-grid strong {
    margin: 3px 0;
    color: #4D3930;
    font-family: 'Noto Serif SC', serif;
    font-size: 1.05rem;
}

.audit-detail-grid p {
    margin: 0;
    font-size: 0.7rem;
    line-height: 1.6;
}

.audit-caution {
    padding: var(--space-md);
    color: #745043;
    background: #FFF5EE;
    border-left: 4px solid #C56B45;
}

.audit-caution strong {
    color: #9B4E31;
}

.old-new-lanes {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    gap: var(--space-md);
    align-items: stretch;
    margin-top: var(--space-lg);
}

.old-new-lanes > b {
    align-self: center;
    color: #B86241;
    font-size: 1.1rem;
}

.old-new-lanes article {
    padding: var(--space-md);
    background: #F7F3EF;
    border: 1px solid #E0D6CE;
    border-radius: var(--radius-md);
}

.old-new-lanes article span,
.old-new-lanes article strong {
    display: block;
}

.old-new-lanes article span {
    color: #A95B3B;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.63rem;
    font-weight: 700;
}

.old-new-lanes article strong {
    margin: 4px 0;
    color: #4D3930;
    font-size: 0.8rem;
}

.old-new-lanes article p {
    margin: 0;
    font-size: 0.72rem;
    line-height: 1.65;
}

.not-redundant-panel {
    display: grid;
    grid-template-columns: minmax(220px, 0.72fr) minmax(0, 1.28fr);
    gap: var(--space-xl);
    margin: var(--space-xl) 0 var(--space-2xl);
    padding: var(--space-xl);
    color: #FFFFFF;
    background: #30343A;
    border: 1px solid #464B52;
    border-left: 6px solid #5E7886;
    border-radius: var(--radius-lg);
}

.not-redundant-panel span {
    display: block;
    margin-bottom: var(--space-sm);
    color: #95BACB;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    font-weight: 700;
}

.not-redundant-panel h3 {
    margin: 0;
    color: #FFFFFF;
    font-family: 'Noto Serif SC', serif;
    font-size: 1.12rem;
    line-height: 1.55;
}

.not-redundant-panel ul {
    margin: 0;
    padding-left: 1.15rem;
    color: #C9CDD2;
    font-size: 0.77rem;
    line-height: 1.75;
}

.not-redundant-panel li + li {
    margin-top: var(--space-sm);
}

.not-redundant-panel strong {
    color: #FFFFFF;
}

.cleanup-waves {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-sm);
    margin: var(--space-lg) 0 var(--space-xl);
}

.cleanup-waves article {
    padding: var(--space-lg);
    background: #FAF8F5;
    border: 1px solid #E0D7D0;
    border-top: 4px solid #C56A45;
    border-radius: var(--radius-lg);
}

.cleanup-waves article > span,
.cleanup-waves article > strong {
    display: block;
}

.cleanup-waves article > span {
    margin-bottom: var(--space-sm);
    color: #A75435;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.64rem;
    font-weight: 700;
}

.cleanup-waves article > strong {
    color: #4D3930;
    font-size: 0.86rem;
}

.cleanup-waves ul {
    margin: var(--space-md) 0 0;
    padding-left: 1rem;
    color: var(--text-secondary);
    font-size: 0.72rem;
    line-height: 1.7;
}

.audit-done-definition {
    display: grid;
    grid-template-columns: 150px minmax(0, 1fr);
    gap: var(--space-lg);
    align-items: center;
    padding: var(--space-lg);
    background: #EDF5F0;
    border: 1px solid #CDDFD4;
    border-left: 5px solid #56806A;
    border-radius: var(--radius-lg);
}

.audit-done-definition span {
    color: #46705A;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem;
    font-weight: 700;
}

.audit-done-definition p {
    margin: 0;
    color: #52665A;
    font-size: 0.8rem;
    line-height: 1.75;
}

.audit-done-definition strong {
    color: #3F654F;
}

@media (max-width: 1080px) {
    .audit-cadence-grid,
    .cleanup-waves {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 820px) {
    .audit-principle-strip {
        grid-template-columns: 1fr;
    }

    .audit-principle-strip > b {
        justify-self: center;
        transform: rotate(90deg);
    }

    .audit-skill-contract,
    .audit-evidence-gate,
    .not-redundant-panel {
        grid-template-columns: 1fr;
    }

    .audit-skill-contract ul {
        grid-column: auto;
        grid-template-columns: 1fr;
    }

    .audit-detail-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 680px) {
    .audit-cadence-grid,
    .cleanup-waves,
    .old-new-lanes,
    .audit-done-definition {
        grid-template-columns: 1fr;
    }

    .old-new-lanes > b {
        justify-self: center;
        transform: rotate(90deg);
    }

    .audit-example-stack summary {
        grid-template-columns: auto minmax(0, 1fr);
    }

    .audit-example-stack summary > b {
        grid-column: 2;
    }

    .audit-detail-body {
        padding: 0 var(--space-lg) var(--space-lg);
    }
}


@media (max-width: 1080px) {
    .migration-gates {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .migration-gates > b {
        display: none;
    }
}

@media (max-width: 860px) {
    .execution-heading {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 680px) {
    .migration-gates {
        grid-template-columns: 1fr;
    }

    .execution-heading > p {
        padding: var(--space-md);
        background: #FFF8F3;
        border-left-width: 4px;
    }

    .ai-transformation-rules {
        grid-template-columns: 1fr;
    }

    .decoupling-steps > article {
        grid-template-columns: 1fr;
    }

    .decoupling-steps ol {
        grid-template-columns: 1fr;
    }

    .step-index {
        width: 48px;
        height: 48px;
    }

    .prompt-example-head {
        align-items: flex-start;
        flex-direction: column;
    }

    .prompt-example pre {
        padding: var(--space-lg);
    }
}



/* ==========================================
   实战操作篇 · 第二阶段：核心系统改造
   ========================================== */

.transformation-target-architecture {
    display: grid;
    grid-template-columns: minmax(260px, 0.9fr) minmax(0, 1.6fr);
    gap: var(--space-md);
    margin: var(--space-xl) 0;
}

.transformation-target-core {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-xl);
    color: #FFFFFF;
    background: #30343A;
    border: 1px solid #444950;
    border-left: 6px solid #E08A5C;
    border-radius: var(--radius-lg);
}

.transformation-target-core span,
.transformation-target-core strong {
    display: block;
}

.transformation-target-core span {
    margin-bottom: var(--space-sm);
    color: #F0B36B;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.66rem;
    font-weight: 700;
}

.transformation-target-core strong {
    margin-bottom: var(--space-sm);
    font-family: 'Noto Serif SC', serif;
    font-size: 1.18rem;
}

.transformation-target-core p {
    margin: 0;
    color: #C8CBD0;
    font-size: 0.79rem;
    line-height: 1.75;
}

.transformation-target-streams {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-sm);
}

.transformation-target-streams article {
    padding: var(--space-lg);
    background: #FAF8F5;
    border: 1px solid #E1D8D1;
    border-radius: var(--radius-lg);
}

.transformation-target-streams span,
.transformation-target-streams strong {
    display: block;
}

.transformation-target-streams span {
    width: 38px;
    margin-bottom: var(--space-md);
    padding: 4px 0;
    color: #A55132;
    background: #FFF0E7;
    border-radius: var(--radius-sm);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.67rem;
    font-weight: 700;
    text-align: center;
}

.transformation-target-streams strong {
    margin-bottom: var(--space-xs);
    color: var(--text-primary);
    font-size: 0.88rem;
}

.transformation-target-streams p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.74rem;
    line-height: 1.65;
}

.transformation-scope-board {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-sm);
    margin: var(--space-xl) 0 var(--space-2xl);
}

.transformation-scope-board article {
    padding: var(--space-lg);
    border: 1px solid;
    border-radius: var(--radius-lg);
}

.transformation-scope-board article > span {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.64rem;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.transformation-scope-board h3 {
    margin: var(--space-sm) 0;
    font-size: 1rem;
}

.transformation-scope-board p {
    margin: 0;
    font-size: 0.76rem;
    line-height: 1.7;
}

.transformation-scope-keep {
    color: #476457;
    background: #F1F7F3;
    border-color: #CFDDD4 !important;
}

.transformation-scope-cut {
    color: #7B5550;
    background: #FAF3F1;
    border-color: #E5D2CE !important;
}

.transformation-scope-rebuild {
    color: #765D36;
    background: #FBF7ED;
    border-color: #E7D9B9 !important;
}

.transformation-scope-migrate {
    color: #4E6170;
    background: #F2F6F8;
    border-color: #D0DCE2 !important;
}

.transformation-inventory-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
    gap: var(--space-lg);
    margin: var(--space-lg) 0 var(--space-2xl);
}

.transformation-inventory-checklist {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-sm);
}

.transformation-inventory-checklist article {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: var(--space-md);
    padding: var(--space-md);
    background: #FFFDFC;
    border: 1px solid #E4DCD6;
    border-radius: var(--radius-md);
}

.transformation-inventory-checklist article > span {
    color: #C26A45;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.76rem;
    font-weight: 700;
}

.transformation-inventory-checklist strong {
    display: block;
    margin-bottom: 3px;
    color: var(--text-primary);
    font-size: 0.82rem;
}

.transformation-inventory-checklist p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.74rem;
    line-height: 1.65;
}

.transformation-inventory-card {
    padding: var(--space-xl);
    color: #FFFFFF;
    background: #34383E;
    border: 1px solid #494E55;
    border-radius: var(--radius-lg);
}

.transformation-inventory-card > span {
    color: #F0B36B;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.66rem;
    font-weight: 700;
}

.transformation-inventory-card h3 {
    margin: var(--space-sm) 0 var(--space-md);
    color: #FFFFFF;
    font-size: 1rem;
}

.transformation-inventory-card dl {
    margin: 0;
}

.transformation-inventory-card dl div {
    padding: var(--space-sm) 0;
    border-top: 1px solid #50545B;
}

.transformation-inventory-card dt {
    color: #AEB3BA;
    font-size: 0.65rem;
}

.transformation-inventory-card dd {
    margin: 2px 0 0;
    color: #ECEDEF;
    font-size: 0.76rem;
    line-height: 1.55;
}

.transformation-parallel-workstreams {
    margin: var(--space-xl) 0 var(--space-2xl);
    padding: var(--space-xl);
    background: #F7F3EF;
    border: 1px solid #E0D5CC;
    border-radius: var(--radius-lg);
}

.transformation-workstream-title {
    display: flex;
    gap: var(--space-lg);
    align-items: baseline;
    margin-bottom: var(--space-lg);
}

.transformation-workstream-title span {
    color: #A75A3A;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.65rem;
    font-weight: 700;
}

.transformation-workstream-title h3 {
    margin: 0;
    color: #5C3D30;
    font-family: 'Noto Serif SC', serif;
    font-size: 1.12rem;
}

.transformation-workstream-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-sm);
}

.transformation-workstream-grid article {
    padding: var(--space-lg);
    background: rgba(255, 255, 255, 0.75);
    border: 1px solid #E2D9D2;
    border-radius: var(--radius-md);
}

.transformation-workstream-grid article > span {
    display: block;
    margin-bottom: var(--space-sm);
    color: #A65334;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    font-weight: 700;
}

.transformation-workstream-grid ul {
    margin: 0;
    padding-left: 1rem;
    color: var(--text-secondary);
    font-size: 0.76rem;
    line-height: 1.75;
}

.transformation-shared-contract {
    margin: var(--space-md) 0 0;
    padding: var(--space-md);
    color: var(--text-secondary);
    background: #FFFDFC;
    border-left: 4px solid #C56D49;
    font-size: 0.79rem;
    line-height: 1.75;
}

.transformation-shared-contract strong {
    color: #7A4935;
}

@media (max-width: 1080px) {
    .transformation-scope-board {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 860px) {
    .transformation-target-architecture,
    .transformation-inventory-layout {
        grid-template-columns: 1fr;
    }

    .transformation-target-streams,
    .transformation-workstream-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 680px) {
    .transformation-scope-board,
    .transformation-inventory-checklist {
        grid-template-columns: 1fr;
    }

    .transformation-workstream-title {
        align-items: flex-start;
        flex-direction: column;
        gap: var(--space-xs);
    }
}