/* AI机械臂 · 真实工作环境连接教程 */
body.connection-page {
    background-color: #FBFAF8;
    background-image:
        linear-gradient(rgba(206, 198, 191, 0.18) 1px, transparent 1px),
        linear-gradient(90deg, rgba(206, 198, 191, 0.18) 1px, transparent 1px);
    background-size: 32px 32px;
}

.connection-nav {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    min-height: 62px;
    padding: 10px clamp(18px, 5vw, 72px);
    background: rgba(251, 250, 248, 0.94);
    border-bottom: 1px solid var(--border-subtle);
    backdrop-filter: blur(16px);
}

.connection-nav a {
    color: #9C4D31;
    text-decoration: none;
    font-family: 'Noto Serif SC', serif;
    font-weight: 700;
}

.connection-nav a:hover,
.connection-nav a:focus-visible {
    color: #69311F;
    outline: none;
}

.connection-nav span {
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.08em;
}

.connection-guide {
    width: min(1160px, calc(100% - 36px));
    margin: 0 auto;
    padding: clamp(28px, 6vw, 76px) 0 64px;
}

.guide-hero {
    position: relative;
    overflow: hidden;
    padding: clamp(30px, 5vw, 64px);
    color: #F7F5F2;
    background: #292B2F;
    border: 1px solid #3E4147;
    border-radius: 28px;
    box-shadow: 0 24px 70px rgba(35, 33, 31, 0.2);
}

.guide-hero::after {
    content: attr(data-number);
    position: absolute;
    right: clamp(18px, 5vw, 54px);
    bottom: -0.34em;
    color: rgba(255, 255, 255, 0.055);
    font-family: 'JetBrains Mono', monospace;
    font-size: clamp(8rem, 23vw, 18rem);
    font-weight: 700;
    line-height: 1;
}

.guide-kicker,
.guide-eyebrow {
    color: #F0B36C;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
}

.guide-hero h1 {
    position: relative;
    z-index: 1;
    max-width: 850px;
    margin: 14px 0 16px;
    color: #FFFFFF;
    font-family: 'Noto Serif SC', serif;
    font-size: clamp(2.15rem, 6vw, 4.6rem);
    line-height: 1.14;
}

.guide-hero > p {
    position: relative;
    z-index: 1;
    max-width: 780px;
    margin: 0;
    color: #C9CDD2;
    font-size: clamp(0.98rem, 2vw, 1.15rem);
    line-height: 1.9;
}

.guide-pills {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    gap: 9px;
    margin-top: 24px;
}

.guide-pills span {
    padding: 7px 11px;
    color: #E7E9EC;
    background: #393C42;
    border: 1px solid #4D5158;
    border-radius: 999px;
    font-size: 0.72rem;
}

.guide-local-nav {
    position: sticky;
    top: 75px;
    z-index: 30;
    display: flex;
    gap: 8px;
    margin: 22px 0 42px;
    padding: 9px;
    overflow-x: auto;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(12px);
}

.guide-local-nav a {
    flex: 0 0 auto;
    padding: 8px 12px;
    color: #68625D;
    border: 1px solid transparent;
    border-radius: 999px;
    text-decoration: none;
    font-size: 0.76rem;
    white-space: nowrap;
}

.guide-local-nav a:hover,
.guide-local-nav a:focus-visible {
    color: #8E452B;
    background: #FFF6F0;
    border-color: #E9C7B5;
    outline: none;
}

.guide-section {
    scroll-margin-top: 140px;
    margin-bottom: clamp(36px, 6vw, 64px);
}

.guide-section-head {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 18px;
    align-items: start;
    margin-bottom: 22px;
}

.guide-section-number {
    display: grid;
    place-items: center;
    width: 42px;
    height: 42px;
    color: #FFFFFF;
    background: #A95436;
    border-radius: 50%;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    font-weight: 700;
}

.guide-section h2 {
    margin: 0;
    color: var(--text-primary);
    font-family: 'Noto Serif SC', serif;
    font-size: clamp(1.45rem, 3vw, 2.15rem);
    line-height: 1.35;
}

.guide-section-head p {
    margin: 7px 0 0;
    color: var(--text-secondary);
}

.route-grid,
.official-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.route-card,
.official-card,
.permission-table,
.config-panel,
.verify-panel,
.guide-warning {
    background: #FFFFFF;
    border: 1px solid var(--border-subtle);
    border-radius: 18px;
    box-shadow: var(--shadow-sm);
}

.route-card {
    padding: 24px;
    border-top: 4px solid #D58A68;
}

.route-card.recommended {
    border-top-color: #66A984;
    background: linear-gradient(160deg, #F4FBF7, #FFFFFF 55%);
}

.route-card span {
    color: #A75A3D;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.08em;
}

.route-card h3 {
    margin: 10px 0;
    font-family: 'Noto Serif SC', serif;
    font-size: 1.08rem;
}

.route-card p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.75;
}

.step-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    list-style: none;
}

.step-list li {
    display: grid;
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 14px;
    padding: 22px;
    background: #FFFFFF;
    border: 1px solid var(--border-subtle);
    border-radius: 18px;
}

.step-list li > span {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    color: #9B4C30;
    background: #FFF1E8;
    border: 1px solid #EAC7B5;
    border-radius: 12px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    font-weight: 700;
}

.step-list strong {
    display: block;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.step-list p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.86rem;
    line-height: 1.75;
}

.config-panel {
    overflow: hidden;
    background: #202226;
    border-color: #383B41;
}

.config-panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 13px 17px;
    color: #B8BCC3;
    background: #2C2F34;
    border-bottom: 1px solid #404349;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
}

.config-panel-head span:last-child {
    color: #7EC89E;
}

.config-panel pre {
    margin: 0;
    padding: 24px;
    overflow-x: auto;
    color: #E4E6E9;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    line-height: 1.75;
    white-space: pre;
}

.config-note {
    padding: 0 24px 22px;
    color: #AEB2B9;
    font-size: 0.78rem;
}

.permission-table {
    width: 100%;
    overflow: hidden;
    border-collapse: separate;
    border-spacing: 0;
}

.permission-table th,
.permission-table td {
    padding: 15px 18px;
    border-bottom: 1px solid var(--border-subtle);
    text-align: left;
    vertical-align: top;
}

.permission-table th {
    color: #78503E;
    background: #FBF6F2;
    font-size: 0.76rem;
}

.permission-table td {
    color: var(--text-secondary);
    font-size: 0.84rem;
    line-height: 1.65;
}

.permission-table tr:last-child td {
    border-bottom: 0;
}

.permission-level {
    display: inline-flex;
    padding: 4px 8px;
    color: #306C4A;
    background: #EAF6EF;
    border-radius: 999px;
    font-size: 0.68rem;
    font-weight: 700;
    white-space: nowrap;
}

.permission-level.confirm {
    color: #8A5428;
    background: #FFF3DE;
}

.verify-panel {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
    gap: 24px;
    padding: 26px;
}

.verify-list {
    display: grid;
    gap: 10px;
    list-style: none;
}

.verify-list li {
    position: relative;
    padding-left: 30px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.verify-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 1px;
    display: grid;
    place-items: center;
    width: 20px;
    height: 20px;
    color: #FFFFFF;
    background: #5D9F78;
    border-radius: 50%;
    font-size: 0.68rem;
    font-weight: 700;
}

.verify-command {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 9px;
    padding: 20px;
    color: #E7E9EC;
    background: #292B2F;
    border-radius: 14px;
}

.verify-command small {
    color: #F0B36C;
    font-family: 'JetBrains Mono', monospace;
}

.verify-command code {
    color: #CBEBD7;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    line-height: 1.65;
    word-break: break-word;
}

.guide-warning {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 16px;
    padding: 22px 24px;
    color: #6C522D;
    background: #FFF8E9;
    border-color: #ECD9AF;
}

.guide-warning > span {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    background: #F4D98F;
    border-radius: 50%;
    font-weight: 800;
}

.guide-warning strong {
    display: block;
    margin-bottom: 4px;
    color: #714927;
}

.guide-warning p {
    margin: 0;
    line-height: 1.75;
}

.official-card {
    display: flex;
    flex-direction: column;
    min-height: 178px;
    padding: 22px;
    color: inherit;
    text-decoration: none;
    transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.official-card:hover,
.official-card:focus-visible {
    transform: translateY(-3px);
    border-color: #D5AA94;
    box-shadow: var(--shadow-md);
    outline: none;
}

.official-card small {
    color: #A95436;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.66rem;
    font-weight: 700;
}

.official-card strong {
    margin: 10px 0 8px;
    color: var(--text-primary);
    font-family: 'Noto Serif SC', serif;
    font-size: 1rem;
}

.official-card p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.82rem;
    line-height: 1.7;
}

.official-card b {
    margin-top: auto;
    padding-top: 15px;
    color: #9C4D31;
    font-size: 0.75rem;
}

.guide-pager {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin-top: 56px;
}

.guide-pager a {
    display: flex;
    flex-direction: column;
    min-height: 104px;
    padding: 20px 22px;
    color: inherit;
    background: #FFFFFF;
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    text-decoration: none;
}

.guide-pager a:last-child {
    align-items: flex-end;
    text-align: right;
}

.guide-pager small {
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.66rem;
}

.guide-pager strong {
    margin-top: 5px;
    color: #98492E;
}

.guide-footer {
    padding: 0 18px 36px;
    color: var(--text-muted);
    text-align: center;
    font-size: 0.75rem;
}

/* ==========================================
   数据库教程专属样式
   ========================================== */

.guide-callout {
    display: grid;
    gap: 10px;
    padding: 24px 28px;
    border-radius: 18px;
}

.guide-callout-core {
    margin-bottom: 28px;
    background: linear-gradient(135deg, #FFF7EF 0%, #FEF8F4 100%);
    border: 1px solid #EBD6C9;
    border-left: 5px solid #C96742;
}

.guide-callout-core span {
    color: #B66A49;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
}

.guide-callout-core p {
    margin: 0;
    color: #633A2B;
    font-size: 0.96rem;
    line-height: 1.85;
}

.guide-callout-core code {
    padding: 2px 6px;
    color: #8F452A;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid #E9C7B5;
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85em;
}

.final-structure {
    margin: 8px 0 0;
}

.final-structure > span {
    display: inline-block;
    margin-bottom: 14px;
    padding: 5px 10px;
    color: #35645A;
    background: #EBF6F2;
    border: 1px solid #C9E6DC;
    border-radius: 999px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.68rem;
    font-weight: 600;
}

.final-structure pre {
    margin: 0;
    padding: 24px;
    overflow-x: auto;
    color: #D8C9A6;
    background: #292B2F;
    border-radius: 14px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.82rem;
    line-height: 1.8;
    white-space: pre;
}

.guide-subheading {
    margin: 32px 0 12px;
    color: var(--text-primary);
    font-family: 'Noto Serif SC', serif;
    font-size: 1.08rem;
}

.step-list-single {
    grid-template-columns: 1fr;
    max-width: 640px;
}

.permission-table-wrap {
    margin-top: 20px;
    overflow: hidden;
    border-radius: 18px;
}

.permission-table code {
    padding: 2px 6px;
    color: #69311F;
    background: #FFF1E7;
    border: 1px solid #E9C7B5;
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85em;
}

@media (max-width: 880px) {
    .route-grid,
    .official-grid {
        grid-template-columns: 1fr;
    }

    .step-list,
    .verify-panel {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 620px) {
    .connection-guide {
        width: min(100% - 24px, 1160px);
    }

    .guide-hero {
        padding: 28px 22px;
        border-radius: 20px;
    }

    .guide-local-nav {
        top: 66px;
        margin-bottom: 34px;
    }

    .guide-section-head {
        grid-template-columns: 1fr;
    }

    .guide-section-number {
        width: 36px;
        height: 36px;
    }

    .step-list li {
        grid-template-columns: 1fr;
    }

    .permission-table {
        display: block;
        overflow-x: auto;
    }

    .permission-table th,
    .permission-table td {
        min-width: 150px;
        padding: 13px;
    }

    .guide-warning {
        grid-template-columns: 1fr;
    }

    .guide-pager {
        grid-template-columns: 1fr;
    }

    .guide-pager a:last-child {
        align-items: flex-start;
        text-align: left;
    }

    .guide-callout-core {
        padding: 20px 18px;
    }

    .final-structure pre {
        padding: 18px;
        font-size: 0.75rem;
    }
}