:root {
    --manual-ink: #172033;
    --manual-muted: #647084;
    --manual-line: #dbe1e8;
    --manual-soft: #f5f7fa;
    --manual-accent: #e56f21;
    --manual-accent-dark: #b94d0c;
    --manual-blue: #176b87;
    --manual-success: #227a4b;
    --manual-warning: #9a5a08;
    --manual-page-width: 1240px;
    --manual-nav-width: 252px;
}

html {
    scroll-behavior: smooth;
}

body.manual-page {
    color: var(--manual-ink);
    background:
        linear-gradient(90deg, rgba(23, 107, 135, 0.035) 1px, transparent 1px),
        linear-gradient(rgba(23, 107, 135, 0.035) 1px, transparent 1px),
        #fff;
    background-size: 28px 28px;
}

.manual-shell {
    width: min(var(--manual-page-width), calc(100% - 40px));
    margin: 0 auto;
    padding: 108px 0 72px;
}

.manual-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.08fr) minmax(360px, 0.92fr);
    gap: 42px;
    align-items: center;
    padding: 42px 0 36px;
    border-bottom: 1px solid var(--manual-line);
}

.manual-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 14px;
    color: var(--manual-accent-dark);
    font-size: 14px;
    font-weight: 700;
}

.manual-kicker::before {
    width: 28px;
    height: 2px;
    background: var(--manual-accent);
    content: '';
}

.manual-hero h1 {
    margin: 0;
    color: var(--manual-ink);
    font-size: clamp(34px, 4vw, 54px);
    line-height: 1.08;
    letter-spacing: 0;
}

.manual-hero-lead {
    max-width: 720px;
    margin: 20px 0 0;
    color: var(--manual-muted);
    font-size: 17px;
    line-height: 1.8;
}

.manual-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 18px;
    margin-top: 24px;
    color: var(--manual-muted);
    font-size: 13px;
}

.manual-meta span {
    display: inline-flex;
    align-items: center;
    gap: 7px;
}

.manual-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 24px;
}

.manual-action {
    display: inline-flex;
    min-height: 42px;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0 18px;
    border: 1px solid var(--manual-line);
    color: var(--manual-ink);
    background: #fff;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
}

.manual-action:hover {
    border-color: var(--manual-accent);
    color: var(--manual-accent-dark);
}

.manual-action-primary {
    border-color: var(--manual-accent);
    color: #fff;
    background: var(--manual-accent);
}

.manual-action-primary:hover {
    color: #fff;
    background: var(--manual-accent-dark);
}

.manual-hero-visual {
    position: relative;
    margin: 0;
    padding: 12px 12px 28px;
    border: 1px solid var(--manual-line);
    background: #fff;
    box-shadow: 18px 18px 0 rgba(23, 107, 135, 0.1);
}

.manual-hero-visual img {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 10;
    object-fit: cover;
    object-position: top center;
}

.manual-hero-visual figcaption {
    position: absolute;
    right: 14px;
    bottom: 6px;
    color: var(--manual-muted);
    font-size: 12px;
}

.manual-layout {
    display: grid;
    grid-template-columns: var(--manual-nav-width) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
    padding-top: 38px;
}

.manual-toc {
    position: sticky;
    top: 92px;
    max-height: calc(100vh - 116px);
    overflow-y: auto;
    border-left: 2px solid var(--manual-line);
}

.manual-toc-title {
    display: block;
    padding: 0 0 10px 18px;
    color: var(--manual-ink);
    font-size: 13px;
    font-weight: 800;
}

.manual-toc a {
    display: block;
    padding: 7px 12px 7px 18px;
    border-left: 2px solid transparent;
    color: var(--manual-muted);
    font-size: 13px;
    line-height: 1.4;
    text-decoration: none;
    transform: translateX(-2px);
}

.manual-toc a:hover,
.manual-toc a.is-active {
    border-left-color: var(--manual-accent);
    color: var(--manual-accent-dark);
    background: #fff7f0;
}

.manual-content {
    min-width: 0;
}

.manual-section {
    scroll-margin-top: 96px;
    padding: 0 0 48px;
}

.manual-section + .manual-section {
    padding-top: 44px;
    border-top: 1px solid var(--manual-line);
}

.manual-section-number {
    display: block;
    margin-bottom: 8px;
    color: var(--manual-accent-dark);
    font-size: 12px;
    font-weight: 800;
    text-transform: uppercase;
}

.manual-section h2 {
    margin: 0 0 16px;
    color: var(--manual-ink);
    font-size: 29px;
    line-height: 1.25;
    letter-spacing: 0;
}

.manual-section h3 {
    margin: 30px 0 12px;
    color: var(--manual-ink);
    font-size: 19px;
    line-height: 1.4;
    letter-spacing: 0;
}

.manual-section h4 {
    margin: 22px 0 8px;
    color: var(--manual-ink);
    font-size: 16px;
}

.manual-section p,
.manual-section li {
    color: #435066;
    font-size: 15px;
    line-height: 1.85;
}

.manual-section p {
    margin: 0 0 14px;
}

.manual-section ul,
.manual-section ol {
    margin: 10px 0 18px;
    padding-left: 24px;
}

.manual-section li + li {
    margin-top: 6px;
}

.manual-section strong {
    color: var(--manual-ink);
}

.manual-flow {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    margin: 24px 0;
    border: 1px solid var(--manual-line);
    background: #fff;
}

.manual-flow-step {
    position: relative;
    min-height: 118px;
    padding: 20px 18px;
}

.manual-flow-step + .manual-flow-step {
    border-left: 1px solid var(--manual-line);
}

.manual-flow-step + .manual-flow-step::before {
    position: absolute;
    top: 50%;
    left: -6px;
    width: 11px;
    height: 11px;
    border-top: 2px solid var(--manual-accent);
    border-right: 2px solid var(--manual-accent);
    background: #fff;
    content: '';
    transform: translateY(-50%) rotate(45deg);
}

.manual-flow-index {
    display: block;
    margin-bottom: 9px;
    color: var(--manual-accent-dark);
    font-size: 12px;
    font-weight: 800;
}

.manual-flow-step strong {
    display: block;
    margin-bottom: 5px;
    font-size: 15px;
}

.manual-flow-step span:last-child {
    color: var(--manual-muted);
    font-size: 12px;
    line-height: 1.6;
}

.manual-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin: 18px 0 24px;
}

.manual-card {
    padding: 20px;
    border: 1px solid var(--manual-line);
    background: #fff;
}

.manual-card h3,
.manual-card h4 {
    margin-top: 0;
}

.manual-card p:last-child,
.manual-card ul:last-child {
    margin-bottom: 0;
}

.manual-card-icon {
    display: inline-flex;
    width: 34px;
    height: 34px;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
    color: var(--manual-blue);
    background: #e9f5f8;
}

.manual-callout {
    margin: 18px 0 24px;
    padding: 16px 18px;
    border-left: 4px solid var(--manual-blue);
    background: #edf7fa;
}

.manual-callout-warning {
    border-left-color: #d88a1a;
    background: #fff8e9;
}

.manual-callout-success {
    border-left-color: var(--manual-success);
    background: #eff9f3;
}

.manual-callout strong {
    display: block;
    margin-bottom: 4px;
}

.manual-callout p:last-child {
    margin-bottom: 0;
}

.manual-table-wrap {
    margin: 18px 0 26px;
    overflow-x: auto;
    border: 1px solid var(--manual-line);
    background: #fff;
}

.manual-table {
    width: 100%;
    min-width: 720px;
    border-collapse: collapse;
}

.manual-table th,
.manual-table td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--manual-line);
    text-align: left;
    vertical-align: top;
    font-size: 13px;
    line-height: 1.6;
}

.manual-table th {
    color: var(--manual-ink);
    background: var(--manual-soft);
    font-weight: 800;
}

.manual-table td {
    color: #435066;
}

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

.manual-shot {
    margin: 22px 0 28px;
    border: 1px solid var(--manual-line);
    background: #fff;
}

.manual-shot img {
    display: block;
    width: 100%;
    max-height: 560px;
    object-fit: contain;
    object-position: top center;
    background: var(--manual-soft);
}

.manual-shot figcaption {
    padding: 11px 14px;
    border-top: 1px solid var(--manual-line);
    color: var(--manual-muted);
    font-size: 12px;
}

.manual-steps {
    margin: 18px 0 26px;
    padding: 0;
    list-style: none;
    counter-reset: manual-step;
}

.manual-steps > li {
    position: relative;
    min-height: 42px;
    padding: 0 0 20px 52px;
    counter-increment: manual-step;
}

.manual-steps > li::before {
    position: absolute;
    top: 1px;
    left: 0;
    display: flex;
    width: 34px;
    height: 34px;
    align-items: center;
    justify-content: center;
    color: #fff;
    background: var(--manual-blue);
    font-size: 13px;
    font-weight: 800;
    content: counter(manual-step);
}

.manual-steps > li::after {
    position: absolute;
    top: 39px;
    bottom: 3px;
    left: 16px;
    width: 1px;
    background: var(--manual-line);
    content: '';
}

.manual-steps > li:last-child::after {
    display: none;
}

.manual-code {
    display: inline-block;
    padding: 1px 6px;
    color: #1c4f63;
    background: #eaf3f6;
    font-family: Consolas, 'Courier New', monospace;
    font-size: 13px;
}

.manual-status {
    display: inline-flex;
    align-items: center;
    padding: 2px 7px;
    border: 1px solid #b8c4d0;
    color: #435066;
    background: #fff;
    font-size: 12px;
    font-weight: 700;
}

.manual-status-green {
    border-color: #92c9a8;
    color: var(--manual-success);
    background: #eff9f3;
}

.manual-status-orange {
    border-color: #efc177;
    color: var(--manual-warning);
    background: #fff8e9;
}

.manual-faq details {
    border-top: 1px solid var(--manual-line);
    background: #fff;
}

.manual-faq details:last-child {
    border-bottom: 1px solid var(--manual-line);
}

.manual-faq summary {
    position: relative;
    padding: 17px 42px 17px 4px;
    color: var(--manual-ink);
    cursor: pointer;
    font-size: 15px;
    font-weight: 700;
    list-style: none;
}

.manual-faq summary::-webkit-details-marker {
    display: none;
}

.manual-faq summary::after {
    position: absolute;
    top: 15px;
    right: 10px;
    color: var(--manual-accent-dark);
    font-size: 20px;
    content: '+';
}

.manual-faq details[open] summary::after {
    content: '−';
}

.manual-faq details p {
    padding: 0 42px 17px 4px;
}

.manual-footer-note {
    margin-top: 20px;
    padding: 24px;
    color: #fff;
    background: var(--manual-ink);
}

.manual-footer-note h3,
.manual-footer-note p {
    color: #fff;
}

.manual-footer-note h3 {
    margin-top: 0;
}

@media (max-width: 980px) {
    .manual-hero {
        grid-template-columns: 1fr;
    }

    .manual-hero-visual {
        max-width: 720px;
    }

    .manual-layout {
        grid-template-columns: 1fr;
    }

    .manual-toc {
        position: static;
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        max-height: none;
        border: 1px solid var(--manual-line);
        background: #fff;
    }

    .manual-toc-title {
        grid-column: 1 / -1;
        padding: 14px 16px 8px;
    }

    .manual-toc a {
        padding: 9px 16px;
        border-left: 0;
        transform: none;
    }

    .manual-toc a:hover,
    .manual-toc a.is-active {
        border-left-color: transparent;
    }

    .manual-flow {
        grid-template-columns: 1fr;
    }

    .manual-flow-step + .manual-flow-step {
        border-top: 1px solid var(--manual-line);
        border-left: 0;
    }

    .manual-flow-step + .manual-flow-step::before {
        display: none;
    }
}

@media (max-width: 680px) {
    .manual-shell {
        width: min(100% - 24px, var(--manual-page-width));
        padding-top: 80px;
    }

    .manual-hero {
        gap: 28px;
        padding-top: 28px;
    }

    .manual-hero h1 {
        font-size: 36px;
    }

    .manual-grid,
    .manual-toc {
        grid-template-columns: 1fr;
    }

    .manual-section h2 {
        font-size: 25px;
    }

    .manual-actions {
        display: grid;
        grid-template-columns: 1fr;
    }

    .manual-action {
        width: 100%;
    }
}

@media print {
    @page {
        margin: 15mm;
    }

    .navbar,
    .manual-toc,
    .manual-actions,
    .footer,
    .manual-hero-visual {
        display: none !important;
    }

    body.manual-page {
        background: #fff;
    }

    .manual-shell {
        width: 100%;
        padding: 0;
    }

    .manual-hero,
    .manual-layout {
        display: block;
    }

    .manual-hero {
        padding: 0 0 20px;
    }

    .manual-section {
        break-inside: auto;
    }

    .manual-card,
    .manual-callout,
    .manual-table-wrap,
    .manual-shot,
    .manual-flow {
        break-inside: avoid;
    }

    .manual-section h2,
    .manual-section h3 {
        break-after: avoid;
    }
}