body.product-page {
    margin: 0;
    background: #F5F0E8;
    color: #3D2E26;
    font-family: 'Noto Sans TC', 'PingFang TC', -apple-system, sans-serif;
    font-size: clamp(18px, 4.2vw, 20px);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: clip;
    max-width: 100vw;
    padding-bottom: calc(96px + env(safe-area-inset-bottom, 0px));
}

.product-page .ahk-site-chrome {
    background: #FDFCF8;
}

.product-shell {
    max-width: 1000px;
    margin: 0 auto;
    padding: 12px 14px 24px;
}

.product-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin: 0 0 10px;
    font-size: clamp(13px, 3.2vw, 15px);
    color: #6B5B52;
}

.product-breadcrumb a {
    color: #3A8585;
    font-weight: 600;
    text-decoration: none;
}

.product-breadcrumb a:hover {
    text-decoration: underline;
}

.product-breadcrumb__sep {
    color: rgba(107, 91, 82, 0.55);
}

.product-breadcrumb__current {
    color: #5C3D2E;
    font-weight: 600;
}

.product-page-header {
    margin: 0 0 14px;
}

.product-page-h1 {
    margin: 0 0 4px;
    font-size: clamp(20px, 4.8vw, 26px);
    font-weight: 700;
    line-height: 1.35;
    color: #5C3D2E;
}

.product-page-h1-sub {
    margin: 0 0 8px;
    font-size: clamp(14px, 3.4vw, 16px);
    font-weight: 600;
    color: #C46840;
}

.product-seo-lead {
    margin: 0;
    font-size: clamp(14px, 3.4vw, 16px);
    line-height: 1.6;
    color: #4A3F38;
}

/* 樂本健式：大圖 + 細相 */
.product-systems {
    background: #FFF;
    border: 1px solid rgba(212, 160, 86, 0.22);
    border-radius: 10px;
    padding: 12px 14px 2px;
    margin-bottom: 14px;
}

.product-systems__heading {
    margin: 0 0 8px;
    font-size: clamp(17px, 4vw, 19px);
    font-weight: 700;
    color: #5C3D2E;
    text-align: center;
}

.product-system-row {
    display: grid;
    grid-template-columns: minmax(108px, 150px) 1px minmax(0, 1fr);
    gap: 0 10px;
    align-items: center;
    padding: 10px 0;
    border-top: 1px solid rgba(92, 61, 46, 0.12);
}

.product-system-row__info {
    text-align: right;
    padding-right: 2px;
}

.product-system-row__name {
    margin: 0 0 4px;
    font-size: clamp(13px, 3.2vw, 15px);
    font-weight: 700;
    line-height: 1.35;
    color: #5C3D2E;
}

.product-system-row__sub {
    margin: 0;
    font-size: clamp(10px, 2.6vw, 12px);
    line-height: 1.4;
    color: #6B5B52;
}

.product-system-row__rule {
    width: 1px;
    align-self: stretch;
    min-height: 64px;
    background: rgba(92, 61, 46, 0.35);
}

.product-system-row__visual {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr) minmax(0, 1fr);
    gap: 6px;
    align-items: end;
    min-width: 0;
}

.product-system-row__hero,
.product-system-row__part {
    margin: 0;
    text-align: center;
    min-width: 0;
}

.product-system-row__hero img {
    display: block;
    width: 100%;
    height: auto;
    max-height: clamp(110px, 26vw, 190px);
    object-fit: contain;
    margin: 0 auto;
}

.product-system-row__part img {
    display: block;
    width: 100%;
    height: auto;
    max-height: clamp(64px, 16vw, 110px);
    object-fit: contain;
    margin: 0 auto;
}

.product-system-row__hero figcaption,
.product-system-row__part figcaption {
    margin: 4px 0 0;
    font-size: clamp(9px, 2.4vw, 11px);
    font-weight: 600;
    line-height: 1.3;
    color: #5C3D2E;
}

.product-system-row__parts {
    display: contents;
}

@media (max-width: 640px) {
    .product-system-row {
        grid-template-columns: 1fr;
        gap: 8px;
        padding: 12px 0;
    }

    .product-system-row__info {
        text-align: left;
    }

    .product-system-row__rule {
        display: none;
    }

    .product-system-row__visual {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px 6px;
    }

    .product-system-row__hero {
        grid-column: 1 / -1;
    }

    .product-system-row__hero img {
        max-height: clamp(140px, 42vw, 220px);
    }

    .product-system-row__part img {
        max-height: clamp(72px, 22vw, 120px);
    }
}

@media (min-width: 900px) {
    .product-system-row__visual {
        gap: 10px;
    }

    .product-system-row__hero img {
        max-height: 200px;
    }

    .product-system-row__part img {
        max-height: 120px;
    }
}

.product-buy {
    background: #FFF;
    border-radius: 10px;
    border: 1px solid rgba(212, 160, 86, 0.3);
    padding: 14px 14px 16px;
    margin-bottom: 4px;
    box-shadow: 0 2px 12px rgba(92, 61, 46, 0.05);
}

.product-badge {
    display: inline-block;
    margin: 0 0 8px;
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(196, 104, 64, 0.12);
    color: #C46840;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.product-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 10px;
}

.product-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    min-height: 48px;
    padding: 12px 16px;
    border-radius: 10px;
    font-family: inherit;
    font-size: clamp(16px, 3.8vw, 18px);
    font-weight: 700;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    border: 2px solid transparent;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.product-btn--primary {
    background: linear-gradient(135deg, #C5A059 0%, #A8843F 100%);
    color: #FFF;
    border-color: #A8843F;
}

.product-btn--primary:hover,
.product-btn--primary:focus-visible {
    background: linear-gradient(135deg, #B8924E 0%, #967538 100%);
    outline: none;
}

.product-btn--secondary {
    background: #FFF;
    color: #3A8585;
    border-color: #3A8585;
}

.product-btn--secondary:hover,
.product-btn--secondary:focus-visible {
    background: rgba(58, 133, 133, 0.08);
    outline: none;
}

.product-btn--ghost {
    background: transparent;
    color: #5C3D2E;
    border-color: rgba(92, 61, 46, 0.25);
    font-weight: 600;
}

.product-wa-hint {
    margin: 0;
    font-size: clamp(14px, 3.4vw, 16px);
    color: #6B5B52;
    text-align: center;
    line-height: 1.55;
}

.product-wa-hint strong {
    color: #3A8585;
}

.product-intro {
    margin: 0 0 12px;
    font-size: clamp(14px, 3.4vw, 16px);
    line-height: 1.6;
    color: #4A3F38;
}

.product-section {
    margin-top: 16px;
    padding: 16px 14px;
    background: #FFF;
    border-radius: 12px;
    border: 1px solid rgba(212, 160, 86, 0.2);
}

.product-section h2 {
    margin: 0 0 12px;
    font-size: clamp(18px, 4.2vw, 20px);
    font-weight: 700;
    color: #5C3D2E;
}

.product-faq-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.product-section--accent {
    background: linear-gradient(135deg, #FFF 0%, rgba(197, 160, 89, 0.08) 100%);
}

.product-faq {
    border: 1px solid rgba(212, 160, 86, 0.25);
    border-radius: 10px;
    background: #FDFCF8;
    overflow: hidden;
}

.product-faq__q {
    padding: 14px 16px;
    font-size: clamp(15px, 3.6vw, 17px);
    font-weight: 700;
    color: #5C3D2E;
    cursor: pointer;
    list-style: none;
}

.product-faq__q::-webkit-details-marker {
    display: none;
}

.product-faq__q::before {
    content: '＋ ';
    color: #C5A059;
}

.product-faq[open] .product-faq__q::before {
    content: '－ ';
}

.product-faq__a {
    padding: 0 16px 14px;
    font-size: clamp(15px, 3.5vw, 17px);
    color: #4A3F38;
    line-height: 1.65;
}

.product-related {
    margin: 14px 0 0;
    font-size: clamp(14px, 3.4vw, 16px);
    color: #6B5B52;
}

.product-related a {
    color: #3A8585;
    font-weight: 600;
    text-decoration: none;
}

.product-related a:hover {
    text-decoration: underline;
}

.product-related-links {
    margin: 0;
    padding-left: 1.2em;
}

.product-related-links li {
    margin-bottom: 0.5em;
}

.product-related-links a {
    color: #3A8585;
    font-weight: 600;
    text-decoration: none;
}

.product-related-links a:hover {
    text-decoration: underline;
}

.product-section__lead {
    margin: 0 0 8px;
    font-size: clamp(16px, 3.8vw, 18px);
    font-weight: 700;
    color: #C46840;
}

.product-section__body {
    margin: 0;
    color: #4A3F38;
}

.product-section__subhead {
    margin: 16px 0 10px;
    font-size: clamp(16px, 3.8vw, 18px);
    font-weight: 700;
    color: #5C3D2E;
}

.product-tech--spaced {
    margin-top: 22px;
    padding-top: 22px;
    border-top: 1px solid rgba(212, 160, 86, 0.2);
}

.product-tech__title {
    margin: 0 0 8px;
    font-size: clamp(17px, 4vw, 19px);
    font-weight: 700;
    color: #5C3D2E;
}

.product-tech__summary {
    margin: 0 0 12px;
    font-weight: 600;
    color: #6B5B52;
}

.product-tech__footer {
    margin: 12px 0 0;
    font-size: clamp(15px, 3.6vw, 17px);
    color: #6B5B52;
}

.product-compare {
    display: grid;
    gap: 12px;
    margin-top: 12px;
}

@media (min-width: 600px) {
    .product-compare {
        grid-template-columns: 1fr 1fr;
    }
}

.product-compare__col {
    padding: 14px;
    background: #FDFCF8;
    border-radius: 10px;
    border: 1px solid rgba(212, 160, 86, 0.2);
}

.product-compare__label {
    margin: 0 0 8px;
    font-weight: 700;
    font-size: clamp(15px, 3.6vw, 17px);
    color: #5C3D2E;
}

.product-features {
    display: grid;
    gap: 12px;
}

@media (min-width: 600px) {
    .product-features {
        grid-template-columns: repeat(3, 1fr);
    }
}

.product-feature {
    padding: 14px;
    background: #FDFCF8;
    border-radius: 10px;
    border: 1px solid rgba(212, 160, 86, 0.2);
}

.product-feature__title {
    margin: 0 0 6px;
    font-size: clamp(16px, 3.8vw, 18px);
    font-weight: 700;
    color: #C46840;
}

.product-feature__body {
    margin: 0;
    font-size: clamp(15px, 3.5vw, 17px);
    color: #4A3F38;
    line-height: 1.6;
}

.product-list--check {
    list-style: none;
    padding-left: 0;
}

.product-list--check li {
    position: relative;
    padding-left: 1.4em;
}

.product-list--check li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: #C5A059;
    font-weight: 700;
}

.product-daily {
    display: grid;
    gap: 12px;
}

@media (min-width: 600px) {
    .product-daily {
        grid-template-columns: repeat(2, 1fr);
    }
}

.product-daily__item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    padding: 14px;
    background: #FDFCF8;
    border-radius: 10px;
    border: 1px solid rgba(212, 160, 86, 0.2);
}

.product-daily__icon {
    flex-shrink: 0;
    font-size: 1.6em;
    line-height: 1;
}

.product-daily__title {
    margin: 0 0 4px;
    font-size: clamp(16px, 3.8vw, 18px);
    font-weight: 700;
    color: #5C3D2E;
}

.product-daily__body {
    margin: 0;
    font-size: clamp(15px, 3.5vw, 17px);
    color: #6B5B52;
}

.product-list {
    margin: 0;
    padding-left: 1.2em;
}

.product-list li {
    margin-bottom: 0.55em;
}

.product-list li:last-child {
    margin-bottom: 0;
}

.product-locations {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.product-location {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 14px;
    background: #FDFCF8;
    border-radius: 10px;
    border: 1px solid rgba(212, 160, 86, 0.2);
}

.product-location__text {
    flex: 1 1 200px;
    min-width: 0;
}

.product-location__label {
    margin: 0 0 4px;
    font-weight: 700;
    color: #5C3D2E;
}

.product-location__detail {
    margin: 0;
    font-size: clamp(15px, 3.5vw, 17px);
    color: #6B5B52;
}

.product-location__link {
    flex-shrink: 0;
    padding: 10px 16px;
    border-radius: 8px;
    background: rgba(58, 133, 133, 0.1);
    color: #3A8585;
    font-weight: 700;
    font-size: 15px;
    text-decoration: none;
}

.product-location__link:hover {
    background: rgba(58, 133, 133, 0.18);
}

.product-disclaimer {
    margin-top: 20px;
    padding: 14px 16px;
    font-size: clamp(14px, 3.3vw, 16px);
    line-height: 1.65;
    color: #6B5B52;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 10px;
    border: 1px solid rgba(212, 160, 86, 0.15);
}

.product-back {
    margin: 20px 0 0;
    text-align: center;
    font-size: 15px;
}

.product-back a {
    color: #3A8585;
    font-weight: 600;
    text-decoration: none;
}

.product-back a:hover {
    text-decoration: underline;
}