.hlx-guide-page {
    --hlx-navy: #0f1b33;
    --hlx-navy-soft: #182944;
    --hlx-blue: #507aa5;
    --hlx-red: #ef4444;
    --hlx-ice: #edf6fb;
    --hlx-line: #dce8f0;
    --hlx-text: #152033;
    --hlx-muted: #5c6879;
    color: var(--hlx-text);
    background: #f7fafc;
    font-family: "Noto Sans JP", sans-serif;
}

.hlx-guide-page .site-header {
    border-bottom-color: rgba(15, 27, 51, 0.09);
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(12px);
}

.hlx-guide-page main {
    overflow: hidden;
}

.hlx-guide-hero {
    padding: 64px 0 68px;
    background:
        radial-gradient(circle at 84% 14%, rgba(181, 218, 239, 0.52), transparent 28%),
        radial-gradient(circle at 10% 92%, rgba(239, 68, 68, 0.09), transparent 24%),
        linear-gradient(135deg, #f9fcfe, #edf5fa 58%, #f9fbfd);
}

.hlx-breadcrumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 30px;
    color: var(--hlx-muted);
    font-size: 0.8rem;
}

.hlx-breadcrumbs a {
    color: var(--hlx-blue);
}

.hlx-guide-kicker {
    margin-bottom: 13px;
    color: var(--hlx-red);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.09em;
}

.hlx-guide-hero h1 {
    max-width: 900px;
    margin: 0;
    color: var(--hlx-navy);
    font-size: clamp(2.1rem, 5vw, 3.65rem);
    font-weight: 800;
    letter-spacing: -0.05em;
    line-height: 1.3;
    text-wrap: balance;
}

.hlx-guide-lead {
    max-width: 790px;
    margin-top: 22px;
    color: #46566c;
    font-size: 1.04rem;
    line-height: 1.9;
}

.hlx-guide-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 22px;
    margin-top: 24px;
    color: var(--hlx-muted);
    font-size: 0.78rem;
}

.hlx-guide-main {
    padding: 64px 0 88px;
}

.hlx-guide-layout {
    display: grid;
    grid-template-columns: minmax(0, 760px) minmax(220px, 280px);
    justify-content: center;
    align-items: start;
    gap: 46px;
}

.hlx-guide-body {
    padding: clamp(26px, 5vw, 54px);
    border: 1px solid #e2eaf0;
    border-radius: 24px;
    background: #fff;
    box-shadow: 0 18px 50px rgba(15, 27, 51, 0.07);
}

.hlx-guide-body > :first-child {
    margin-top: 0;
}

.hlx-guide-body h2,
.hlx-guide-body h3 {
    color: var(--hlx-navy);
    scroll-margin-top: 92px;
}

.hlx-guide-body h2 {
    margin: 58px 0 20px;
    padding-top: 8px;
    font-size: clamp(1.55rem, 3vw, 2.05rem);
    letter-spacing: -0.035em;
    line-height: 1.45;
}

.hlx-guide-body h2::before {
    content: "";
    display: block;
    width: 42px;
    height: 4px;
    margin-bottom: 14px;
    border-radius: 999px;
    background: var(--hlx-red);
}

.hlx-guide-body h3 {
    margin: 34px 0 12px;
    font-size: 1.18rem;
    line-height: 1.55;
}

.hlx-guide-body p,
.hlx-guide-body li {
    color: #39485d;
    line-height: 1.95;
}

.hlx-guide-body p + p {
    margin-top: 18px;
}

.hlx-guide-body a:not(.btn) {
    color: #356b9a;
    text-decoration: underline;
    text-decoration-color: rgba(53, 107, 154, 0.35);
    text-underline-offset: 3px;
}

.hlx-guide-summary,
.hlx-guide-callout {
    margin: 0 0 34px;
    padding: 22px 24px;
    border: 1px solid #d7e5ee;
    border-radius: 16px;
    background: #f3f8fb;
}

.hlx-guide-summary strong,
.hlx-guide-callout strong {
    display: block;
    margin-bottom: 8px;
    color: var(--hlx-navy);
}

.hlx-guide-summary p,
.hlx-guide-callout p {
    margin: 0;
}

.hlx-guide-callout-warning {
    border-color: #f6d6d6;
    background: #fff7f7;
}

.hlx-guide-checklist,
.hlx-guide-steps {
    display: grid;
    gap: 12px;
    margin: 22px 0 30px;
    padding: 0;
    list-style: none;
}

.hlx-guide-checklist li,
.hlx-guide-steps li {
    position: relative;
    padding: 16px 18px 16px 50px;
    border: 1px solid #e0e9ef;
    border-radius: 14px;
    background: #fbfdfe;
}

.hlx-guide-checklist li::before {
    content: "✓";
    position: absolute;
    top: 16px;
    left: 18px;
    display: grid;
    width: 23px;
    height: 23px;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    background: var(--hlx-blue);
    font-size: 0.72rem;
    font-weight: 800;
}

.hlx-guide-steps {
    counter-reset: guide-step;
}

.hlx-guide-steps li {
    counter-increment: guide-step;
}

.hlx-guide-steps li::before {
    content: counter(guide-step);
    position: absolute;
    top: 16px;
    left: 17px;
    display: grid;
    width: 25px;
    height: 25px;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    background: var(--hlx-red);
    font-size: 0.74rem;
    font-weight: 800;
}

.hlx-guide-table-wrap {
    margin: 22px 0 30px;
    overflow-x: auto;
}

.hlx-guide-table {
    width: 100%;
    min-width: 560px;
    border-collapse: collapse;
    font-size: 0.92rem;
}

.hlx-guide-table th,
.hlx-guide-table td {
    padding: 14px 16px;
    border: 1px solid #dfe8ee;
    text-align: left;
    vertical-align: top;
}

.hlx-guide-table th {
    color: var(--hlx-navy);
    background: #edf5fa;
}

.hlx-guide-figure {
    margin: 34px auto;
    text-align: center;
}

.hlx-guide-figure img {
    display: block;
    width: min(100%, 360px);
    height: auto;
    margin: 0 auto;
    border-radius: 22px;
    box-shadow: 0 18px 42px rgba(15, 27, 51, 0.14);
}

.hlx-guide-figure figcaption {
    max-width: 560px;
    margin: 13px auto 0;
    color: var(--hlx-muted);
    font-size: 0.8rem;
    line-height: 1.65;
}

.hlx-guide-cta {
    margin: 48px 0 0;
    padding: 28px;
    border-radius: 20px;
    color: #fff;
    background:
        radial-gradient(circle at 90% 10%, rgba(157, 197, 223, 0.28), transparent 34%),
        linear-gradient(135deg, var(--hlx-navy), var(--hlx-navy-soft));
}

.hlx-guide-cta h2,
.hlx-guide-cta h3 {
    margin: 0 0 10px;
    padding: 0;
    color: #fff;
}

.hlx-guide-cta h2::before {
    display: none;
}

.hlx-guide-cta p {
    margin: 0 0 20px;
    color: #c6d3e0;
}

.hlx-guide-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.hlx-guide-actions .btn {
    min-height: 48px;
    padding: 13px 20px;
}

.hlx-guide-actions .hlx-guide-btn-primary {
    color: #fff;
    border-color: var(--hlx-red);
    background: var(--hlx-red);
}

.hlx-guide-actions .hlx-guide-btn-secondary {
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.45);
    background: rgba(255, 255, 255, 0.08);
}

.hlx-guide-sidebar {
    position: sticky;
    top: 90px;
}

.hlx-guide-toc,
.hlx-guide-side-card {
    padding: 22px;
    border: 1px solid #e0e9ef;
    border-radius: 18px;
    background: #fff;
}

.hlx-guide-side-card {
    margin-top: 16px;
}

.hlx-guide-toc strong,
.hlx-guide-side-card strong {
    display: block;
    margin-bottom: 12px;
    color: var(--hlx-navy);
    font-size: 0.88rem;
}

.hlx-guide-toc ol {
    display: grid;
    gap: 9px;
    margin: 0;
    padding-left: 20px;
}

.hlx-guide-toc a,
.hlx-guide-side-card a {
    color: var(--hlx-muted);
    font-size: 0.82rem;
    line-height: 1.55;
}

.hlx-guide-toc a:hover,
.hlx-guide-side-card a:hover {
    color: var(--hlx-blue);
}

.hlx-related {
    padding: 0 0 88px;
}

.hlx-related h2 {
    margin-bottom: 24px;
    color: var(--hlx-navy);
    font-size: 1.55rem;
}

.hlx-related-grid,
.hlx-guide-hub-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.hlx-related-card,
.hlx-hub-card {
    display: flex;
    flex-direction: column;
    min-height: 100%;
    padding: 24px;
    border: 1px solid #dfe8ee;
    border-radius: 18px;
    color: var(--hlx-text);
    background: #fff;
    box-shadow: 0 12px 32px rgba(15, 27, 51, 0.05);
    transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.hlx-related-card:hover,
.hlx-hub-card:hover {
    color: var(--hlx-text);
    border-color: #afc8d9;
    box-shadow: 0 18px 38px rgba(15, 27, 51, 0.09);
    transform: translateY(-3px);
}

.hlx-related-card span,
.hlx-hub-card > span {
    margin-bottom: 10px;
    color: var(--hlx-red);
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.06em;
}

.hlx-related-card strong,
.hlx-hub-card h2 {
    margin: 0 0 10px;
    color: var(--hlx-navy);
    font-size: 1.05rem;
    line-height: 1.55;
}

.hlx-related-card p,
.hlx-hub-card p {
    margin: 0;
    color: var(--hlx-muted);
    font-size: 0.86rem;
    line-height: 1.7;
}

.hlx-hub-section {
    padding: 78px 0;
}

.hlx-hub-section-alt {
    background: #edf5fa;
}

.hlx-hub-heading {
    max-width: 720px;
    margin-bottom: 36px;
}

.hlx-hub-heading h2 {
    margin: 0 0 12px;
    color: var(--hlx-navy);
    font-size: clamp(1.75rem, 4vw, 2.55rem);
    letter-spacing: -0.04em;
}

.hlx-hub-heading p {
    color: var(--hlx-muted);
    line-height: 1.8;
}

.hlx-hub-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-top: auto;
    padding-top: 18px;
}

.hlx-hub-card-meta span {
    padding: 5px 9px;
    border-radius: 999px;
    color: var(--hlx-blue);
    background: var(--hlx-ice);
    font-size: 0.7rem;
    font-weight: 700;
}

@media (max-width: 980px) {
    .hlx-guide-layout {
        grid-template-columns: minmax(0, 760px);
    }

    .hlx-guide-sidebar {
        position: static;
        display: grid;
        grid-template-columns: 1fr 1fr;
        grid-row: 1;
        gap: 16px;
    }

    .hlx-guide-side-card {
        margin-top: 0;
    }
}

@media (max-width: 768px) {
    .hlx-guide-hero {
        padding: 42px 0 48px;
    }

    .hlx-guide-hero h1 {
        font-size: clamp(2rem, 10vw, 2.8rem);
        line-height: 1.35;
    }

    .hlx-guide-lead {
        font-size: 0.98rem;
    }

    .hlx-guide-main {
        padding: 38px 0 64px;
    }

    .hlx-guide-body {
        margin: 0 -4px;
        padding: 26px 20px;
        border-radius: 18px;
    }

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

    .hlx-related-grid,
    .hlx-guide-hub-grid {
        grid-template-columns: 1fr;
    }

    .hlx-guide-actions {
        flex-direction: column;
    }

    .hlx-guide-actions .btn {
        width: 100%;
        text-align: center;
    }

    .hlx-guide-cta {
        padding: 24px 20px;
    }

    .hlx-hub-section {
        padding: 60px 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    .hlx-guide-page *,
    .hlx-guide-page *::before,
    .hlx-guide-page *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}