:root {
    color-scheme: light;
    --brand-hero: #ffd08a;
    --brand-sand: #fcf4e8;
    --brand-sand-dark: #e1caa1;
    --brand-sand-alpha: rgba(252, 244, 232, 0.88);
    --brand-brown: #4a2800;
    --brand-text: #3a2d1a;
    --brand-orange: #ff9900;
    --brand-orange-light: #ffb347;
    --brand-cream: #ffeacc;
    --brand-cream-accent: #ff6a00;
    --brand-intro-bg: #fff7eb;
    --brand-intro-border: #ffd7a8;
    --brand-link: #0066cc;
    --brand-link-hover: #0050a3;
    --brand-accent: #0099ff;
    --brand-shadow-soft: rgba(74, 40, 0, 0.12);
    --brand-shadow-strong: rgba(255, 153, 0, 0.22);
    --purpose-accent: var(--brand-orange);
    --purpose-shadow: rgba(255, 153, 0, 0.18);
    --purpose-soft: rgba(255, 153, 0, 0.16);
    --type-accent: var(--brand-link);
    --type-shadow: rgba(0, 102, 204, 0.18);
    --type-soft: rgba(0, 102, 204, 0.14);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    overflow-x: hidden;
}

body {
    margin: 0;
    font-family: 'Noto Sans JP', 'Hiragino Kaku Gothic ProN', Meiryo, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    background-color: #fff;
    color: var(--brand-text);
}

a {
    color: var(--brand-link);
    text-decoration: none;
}

a:hover,
a:focus {
    color: var(--brand-link-hover);
    text-decoration: underline;
}

a:focus-visible {
    outline: 3px solid rgba(0, 102, 204, 0.35);
    outline-offset: 2px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.page {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.hero {
    background-color: var(--brand-hero);
    color: var(--brand-brown);
    padding: 1.3rem clamp(1.25rem, 2vw, 2.2rem);
}

.hero__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    align-items: center;
    gap: clamp(1rem, 2.5vw, 1.8rem);
    max-width: 1280px;
    width: min(100%, 1280px);
    margin: 0 auto;
}

.hero__logo img {
    display: block;
    width: 100%;
    max-width: 200px;
    height: auto;
    background-color: var(--brand-sand);
    border-radius: 16px;
    padding: 0.75rem 0.9rem;
    box-shadow: 0 12px 24px var(--brand-shadow-soft);
}

.hero__banner img {
    width: 100%;
    max-width: 320px;
    height: auto;
}

.google-search {
    background-color: var(--brand-sand-alpha);
    border-radius: 14px;
    padding: 0.75rem clamp(0.9rem, 2vw, 1.3rem);
    color: var(--brand-brown);
    width: 100%;
    max-width: 360px;
    box-shadow: inset 0 0 0 1px rgba(74, 40, 0, 0.08);
}

.google-search form {
    display: grid;
    gap: 0.5rem;
    width: 100%;
}

.google-search__inputs {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    flex-wrap: nowrap;
    min-width: 0;
}

.google-search__inputs a {
    flex-shrink: 0;
}

.google-search__inputs input[type="text"] {
    flex: 1 1 auto;
    min-width: 0;
    padding: 0.5rem 0.65rem;
    border-radius: 8px;
    border: 1px solid rgba(74, 40, 0, 0.15);
    font-size: 1rem;
    background-color: #fff;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.google-search__inputs input[type="text"]:focus-visible {
    outline: none;
    border-color: var(--brand-orange);
    box-shadow: 0 0 0 3px rgba(255, 153, 0, 0.3);
}

.google-search__buttons {
    display: flex;
    gap: 0.75rem;
    flex-wrap: nowrap;
    font-size: 0.9rem;
    color: var(--brand-brown);
    justify-content: flex-start;
    white-space: nowrap;
}

.google-search__buttons label {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex-shrink: 0;
}

.google-search__buttons input[type="radio"] {
    accent-color: var(--brand-orange);
}

.google-search__submit {
    background-color: var(--brand-orange);
    color: #fff;
    border: none;
    padding: 0.45rem 1.2rem;
    border-radius: 999px;
    font-size: 1rem;
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0;
    transition: background-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.google-search__submit:hover,
.google-search__submit:focus {
    background-color: var(--brand-orange-light);
}

.google-search__submit:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 153, 0, 0.35);
}

.breadcrumb {
    background-color: var(--brand-orange);
    color: #fff;
}

.breadcrumb__inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0.6rem clamp(1.1rem, 2vw, 1.8rem);
    font-size: 1rem;
    font-weight: 600;
}

.intro {
    background-color: var(--brand-intro-bg);
    border-bottom: 1px solid var(--brand-intro-border);
}

.intro__inner {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1.5rem clamp(1.2rem, 2.5vw, 2.4rem);
    text-align: center;
    color: #63432b;
    font-size: 1.05rem;
}

.intro__inner strong {
    color: var(--brand-accent);
}

.content {
    flex: 1;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.6rem clamp(1.2rem, 3vw, 2.6rem) 3rem;
}

.ad-slot {
    margin: 1.5rem 0;
    text-align: center;
}

.affiliate-banner img {
    width: 100%;
    max-width: 468px;
    height: auto;
}

.supplement-container {
    display: grid;
    gap: clamp(1rem, 2vw, 1.6rem);
}

.supplement-category {
    background-color: var(--brand-cream);
    color: var(--brand-cream-accent);
    font-size: 1.15rem;
    font-weight: 700;
    padding: 0.65rem clamp(0.9rem, 2vw, 1.4rem);
    border-left: 6px solid var(--brand-orange);
    border-radius: 8px;
}

.supplement-group--type .supplement-category {
    background-color: var(--brand-sand);
    border-left-color: var(--type-accent);
    color: var(--type-accent);
}

.supplement-subcategory {
    margin: 0.85rem clamp(0.6rem, 2vw, 1rem) 0.35rem;
    padding-left: clamp(0.6rem, 2vw, 1rem);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--brand-brown);
}

.supplement-items {
    --supplement-columns: 1;
    display: grid;
    gap: clamp(0.6rem, 1.6vw, 1.1rem);
    grid-template-columns: repeat(var(--supplement-columns), minmax(0, 1fr));
    padding: 0 clamp(0.4rem, 2vw, 1.2rem);
    width: 100%;
}

.supplement-item-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.65rem 1rem;
    border-radius: 999px;
    background-color: var(--brand-sand);
    color: var(--brand-brown);
    font-size: 1.05rem;
    line-height: 1.4;
    font-weight: 600;
    border: 2px solid transparent;
    box-shadow: 0 6px 14px var(--brand-shadow-soft);
    transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
    text-decoration: none;
    width: 100%;
}

.supplement-item-link:hover,
.supplement-item-link:focus {
    transform: translateY(-2px);
    text-decoration: none;
}

.supplement-item-link:active {
    transform: translateY(0);
    box-shadow: 0 4px 10px var(--brand-shadow-soft);
}

.supplement-item-link:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 153, 0, 0.28), 0 6px 14px var(--brand-shadow-soft);
}

.supplement-group--purpose .supplement-item-link {
    border-color: rgba(255, 153, 0, 0.35);
    box-shadow: 0 6px 14px var(--purpose-shadow);
    color: var(--brand-cream-accent);
}

.supplement-group--purpose .supplement-item-link:hover,
.supplement-group--purpose .supplement-item-link:focus {
    background-color: var(--purpose-soft);
    box-shadow: 0 10px 24px var(--purpose-shadow);
}

.supplement-group--purpose .supplement-item-link:focus-visible {
    box-shadow: 0 0 0 3px rgba(255, 153, 0, 0.35), 0 6px 14px var(--purpose-shadow);
}

.supplement-group--purpose .supplement-item-link:active {
    box-shadow: 0 4px 10px var(--purpose-shadow);
}

.supplement-group--type .supplement-item-link {
    border-color: rgba(0, 102, 204, 0.28);
    box-shadow: 0 6px 14px var(--type-shadow);
    color: var(--type-accent);
}

.supplement-group--type .supplement-item-link:hover,
.supplement-group--type .supplement-item-link:focus {
    background-color: var(--type-soft);
    box-shadow: 0 10px 24px var(--type-shadow);
}

.supplement-group--type .supplement-item-link:focus-visible {
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.32), 0 6px 14px var(--type-shadow);
}

.supplement-group--type .supplement-item-link:active {
    box-shadow: 0 4px 10px var(--type-shadow);
}

.supplement-item-link::after {
    content: "\2192";
    font-size: 0.9rem;
    margin-left: 0.4rem;
    color: currentColor;
}

.footer {
    background-color: var(--brand-orange);
    color: #fff;
    text-align: center;
    padding: 1.4rem clamp(1.1rem, 2vw, 2.4rem);
}

.footer__links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: clamp(0.9rem, 1.5vw, 1.4rem);
    flex-wrap: wrap;
    margin-top: 0.9rem;
}

.footer__links img {
    width: 88px;
    height: 31px;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .supplement-item-link,
    .google-search__submit {
        transition: none !important;
        transform: none !important;
    }
}

@media (max-width: 640px) {
    body {
        font-size: 17px;
    }

    .hero {
        padding: 1.2rem 1rem;
    }

    .hero__grid {
        grid-template-columns: 1fr;
        gap: 1.1rem;
        width: 100%;
    }

    .hero__logo,
    .hero__banner,
    .google-search {
        justify-self: center;
        width: min(100%, 360px);
        text-align: center;
    }

    .hero__banner img {
        max-width: 280px;
    }

    .google-search__inputs {
        justify-content: center;
    }

    .google-search__buttons {
        justify-content: center;
    }

    .intro__inner {
        text-align: left;
        font-size: 1rem;
    }

}

@media (min-width: 640px) {
    .supplement-items {
        --supplement-columns: 2;
    }
}

@media (min-width: 900px) {
    .hero__grid {
        grid-template-columns: auto 1fr auto;
    }

    .google-search form {
        grid-template-columns: auto;
        align-items: center;
    }

    .google-search__buttons {
        gap: 0.9rem;
    }

    .intro__inner {
        padding: 1.2rem 1.6rem;
    }

    .content {
        padding: 1.7rem 2.2rem 2.6rem;
    }

    .supplement-container {
        gap: 1.2rem;
    }

    .supplement-category {
        margin-bottom: 0.45rem;
    }

    .supplement-items {
        --supplement-columns: 3;
    }
}

@media (max-width: 1024px) {
    .hero__grid {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    }

    .google-search {
        grid-column: 1 / -1;
        justify-self: center;
        max-width: 520px;
    }

    .google-search__inputs {
        justify-content: center;
    }

    .google-search__buttons {
        justify-content: center;
    }
}

@media (min-width: 1200px) {
    .supplement-items {
        --supplement-columns: 4;
    }
}