body.page-usage {
    --usage-ink: #171918;
    --usage-muted: #555c58;
    --usage-line: #dfe3e0;
    --usage-accent: #e8f0ea;
    --usage-ivory: #fffdf9;
    color: var(--usage-ink);
    background: #fff;
    font-family: "Noto Sans KR", "Apple SD Gothic Neo", Inter, Arial, sans-serif;
    line-height: 1.75;
    text-wrap: pretty;
    word-break: keep-all;
}

body.page-usage .container {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 18px;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 40px 112px;
}

body.page-usage .hero {
    position: relative;
    isolation: isolate;
    display: grid;
    grid-column: 1 / -1;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 20px 18px;
    margin: 0 0 70px;
    padding: 108px 0 78px;
    text-align: left;
    background: transparent;
    border-radius: 0;
}

body.page-usage .hero::before {
    position: absolute;
    z-index: -1;
    inset: 0 calc(50% - 50vw);
    content: "";
    background: linear-gradient(135deg, #fffdf9 0%, #fffefa 58%, #fafbf6 100%);
    border-bottom: 1px solid #eceeea;
}

body.page-usage .hero-title {
    grid-column: 1 / span 8;
    margin: 0;
    color: #000;
    font-size: clamp(48px, 4.2vw, 68px);
    font-weight: 900;
    line-height: 1.12;
    letter-spacing: -.058em;
    text-wrap: balance;
}

body.page-usage .hero-subtitle {
    grid-column: 1 / span 8;
    margin: 4px 0 0;
    color: #000;
    font-family: inherit;
    font-size: clamp(19px, 1.55vw, 24px);
    font-weight: 750;
    line-height: 1.55;
    letter-spacing: -.025em;
}

body.page-usage .category-anchor {
    grid-column: 1 / -1;
    width: 100%;
    max-width: none;
    margin: 48px 0 0;
    padding: 0;
}

body.page-usage .category-anchor-inner {
    padding: 22px 24px 24px;
    background: var(--usage-accent);
    border: 0;
    border-radius: 22px;
}

body.page-usage .category-anchor-toggle {
    display: flex;
    width: 100%;
    margin: 0 0 13px;
    padding: 0;
    color: #000;
    text-align: left;
    appearance: none;
    background: transparent;
    border: 0;
    font: inherit;
}

body.page-usage .category-anchor-label {
    display: inline-block;
    margin: 0;
    color: #000;
    font-size: 10px;
    font-weight: 900;
    letter-spacing: .16em;
}

body.page-usage .category-anchor-chevron { display: none; }

body.page-usage .category-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

body.page-usage .cat-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 38px;
    padding: 8px 13px;
    color: #000;
    font-size: 12px;
    font-weight: 750;
    line-height: 1.35;
    text-decoration: none;
    white-space: normal;
    background: rgba(255, 255, 255, .86);
    border: 1px solid rgba(0, 0, 0, .09);
    border-radius: 999px;
    transition: border-color .18s, background .18s, transform .18s;
}

body.page-usage .cat-chip:hover {
    color: #000;
    background: #fff;
    border-color: #000;
    box-shadow: none;
    transform: translateY(-1px);
}

body.page-usage .cat-chip:focus-visible,
body.page-usage .category-anchor-toggle:focus-visible {
    outline: 2px solid #000;
    outline-offset: 3px;
}

body.page-usage .container > .method {
    display: grid;
    grid-column: span 6;
    grid-template-rows: auto auto 1fr auto;
    gap: 18px;
    min-width: 0;
    margin: 0;
    padding: 34px;
    background: #fff;
    border: 1px solid var(--usage-line);
    border-radius: 24px;
    box-shadow: 0 10px 34px rgba(20, 28, 23, .035);
    transition: border-color .2s, box-shadow .2s, transform .2s;
}

body.page-usage .container > .method:hover {
    border-color: #cbd4ce;
    box-shadow: 0 16px 42px rgba(20, 28, 23, .07);
    transform: translateY(-3px);
}

body.page-usage .method-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin: 0;
}

body.page-usage .method-icon {
    display: grid;
    place-items: center;
    flex: 0 0 54px;
    width: 54px;
    height: 54px;
    background: var(--usage-accent);
    border-radius: 16px;
    font-size: 25px;
    line-height: 1;
}

body.page-usage .method-title {
    margin: 0;
    color: #000;
    font-size: clamp(21px, 1.55vw, 25px);
    font-weight: 850;
    line-height: 1.35;
    letter-spacing: -.038em;
    text-wrap: balance;
    scroll-margin-top: 94px;
}

body.page-usage .method-for {
    margin: 0;
    padding: 15px 17px;
    color: #000;
    background: var(--usage-accent);
    border-radius: 13px;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.7;
}

body.page-usage .method-for strong { color: #000; font-weight: 850; }

body.page-usage .method-examples {
    margin: 0;
    padding: 20px;
    background: var(--usage-ivory);
    border: 1px solid #e7e9e6;
    border-radius: 15px;
}

body.page-usage .method-examples-title {
    margin: 0 0 9px;
    color: #000;
    font-size: 12px;
    font-weight: 900;
    letter-spacing: .08em;
}

body.page-usage .method-examples ul { margin: 0; padding: 0; }

body.page-usage .method-examples li {
    padding: 6px 0 6px 16px;
    color: var(--usage-ink);
    font-size: 14px;
    font-weight: 500;
    line-height: 1.7;
}

body.page-usage .method-examples li::before { left: 0; color: #000; }

body.page-usage .method-point {
    margin: 0;
    padding: 17px 0 0;
    color: var(--usage-ink);
    background: transparent;
    border: 0;
    border-top: 1px solid var(--usage-line);
    border-radius: 0;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.75;
}

body.page-usage .method-point strong { color: #000; font-weight: 900; }

body.page-usage .guide-download-cta {
    grid-column: 1 / -1;
    width: 100%;
    margin: 76px 0 0;
    padding: 72px 40px 66px;
    color: #000;
    background: var(--usage-accent);
    border: 1px solid #d8e2db;
    border-radius: 28px;
}

body.page-usage .guide-download-cta h2 {
    margin: 0;
    color: #000;
    font-size: clamp(32px, 3.2vw, 46px);
    font-weight: 900;
    line-height: 1.25;
    letter-spacing: -.05em;
}

body.page-usage .guide-download-cta p {
    margin-top: 16px;
    color: #313532;
    font-size: 15px;
    font-weight: 500;
    line-height: 1.8;
}

body.page-usage .guide-download-cta .guide-store-badges { margin-top: 28px; }
body.page-usage .guide-download-cta .guide-web-link,
body.page-usage .guide-download-cta .guide-web-link:hover { color: #000; }
body.page-usage .guide-download-cta .guide-web-link:focus-visible { outline-color: #000; }

@media (min-width: 1021px) {
    body.page-usage .container > .method:has(#cat-13) {
        grid-column: 1 / -1;
        grid-template-columns: .9fr 1.25fr 1fr;
        grid-template-rows: auto 1fr;
        column-gap: 18px;
    }
    body.page-usage .method:has(#cat-13) .method-header { grid-column: 1 / -1; }
    body.page-usage .method:has(#cat-13) .method-for,
    body.page-usage .method:has(#cat-13) .method-examples,
    body.page-usage .method:has(#cat-13) .method-point { height: 100%; }
    body.page-usage .method:has(#cat-13) .method-point {
        padding: 16px 18px;
        border: 1px solid var(--usage-line);
        border-radius: 13px;
    }
}

@media (max-width: 1180px) {
    body.page-usage .container { padding-inline: clamp(32px, 3.64vw, 40px); }
}

@media (max-width: 1020px) {
    body.page-usage .hero { margin-bottom: 48px; padding-block: 86px 66px; }
    body.page-usage .container > .method { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
    body.page-usage .container { gap: 14px; padding: 0 22px 76px; }
    body.page-usage .hero { display: block; margin-bottom: 36px; padding: 68px 0 54px; }
    body.page-usage .hero-title { font-size: clamp(37px, 11vw, 48px); line-height: 1.12; }
    body.page-usage .hero-subtitle { margin-top: 18px; font-size: 18px; line-height: 1.55; }
    body.page-usage .category-anchor { margin-top: 36px; }
    body.page-usage .category-anchor-inner { margin-inline: -4px; padding: 18px; border-radius: 18px; }
    body.page-usage .category-anchor-toggle {
        align-items: center;
        justify-content: space-between;
        min-height: 44px;
        margin: 0;
        cursor: pointer;
    }
    body.page-usage .category-anchor-toggle .category-anchor-label { font-size: 12px; }
    body.page-usage .category-anchor-chevron {
        display: grid;
        place-items: center;
        width: 36px;
        height: 36px;
        font-size: 25px;
        font-weight: 700;
        line-height: 1;
        transition: transform .22s;
    }
    body.page-usage .category-anchor-toggle[aria-expanded="true"] .category-anchor-chevron { transform: rotate(180deg); }
    body.page-usage .category-chips-shell {
        display: grid;
        grid-template-rows: 0fr;
        margin-top: 0;
        opacity: 0;
        transition: grid-template-rows .25s, margin-top .25s, opacity .18s;
    }
    body.page-usage .category-anchor-toggle[aria-expanded="true"] + .category-chips-shell {
        grid-template-rows: 1fr;
        margin-top: 12px;
        opacity: 1;
    }
    body.page-usage .category-chips {
        display: grid;
        grid-template-columns: 1fr;
        min-height: 0;
        padding: 0;
        overflow: hidden;
    }
    body.page-usage .cat-chip {
        justify-content: flex-start;
        width: 100%;
        min-height: 46px;
        padding: 11px 14px;
        text-align: left;
        border-radius: 12px;
    }
    body.page-usage .container > .method { gap: 16px; padding: 26px 22px; border-radius: 20px; }
    body.page-usage .container > .method:hover { box-shadow: 0 10px 34px rgba(20, 28, 23, .035); transform: none; }
    body.page-usage .method-header { flex-direction: row; align-items: center; gap: 13px; }
    body.page-usage .method-icon { flex-basis: 48px; width: 48px; height: 48px; border-radius: 14px; font-size: 22px; }
    body.page-usage .method-title { font-size: 20px; }
    body.page-usage .method-for,
    body.page-usage .method-examples,
    body.page-usage .method-point,
    body.page-usage .method-examples li { font-size: 13px; }
    body.page-usage .method-examples { padding: 18px; }
    body.page-usage .guide-download-cta { margin-top: 48px; padding: 46px 22px 42px; border-radius: 22px; }
    body.page-usage .guide-download-cta h2 { font-size: 31px; }
}

@media (prefers-reduced-motion: reduce) {
    body.page-usage .category-anchor-chevron,
    body.page-usage .category-chips-shell,
    body.page-usage .cat-chip,
    body.page-usage .container > .method { transition: none; }
}