body {
    padding-top: 0;
}

:root {
    --site-nav-height: 82px;
    --site-nav-height-mobile: 76px;
}

.navbar {
    min-height: var(--site-nav-height);
}

.nav-container {
    min-height: var(--site-nav-height);
    gap: clamp(1rem, 1.8vw, 1.75rem);
    padding: 0.75rem 2rem;
}

.nav-logo {
    flex: 0 1 auto;
    min-width: 0;
}

.nav-logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: inherit;
    gap: 12px;
}

.nav-logo img {
    display: block;
    width: auto;
    height: auto;
    max-height: 56px;
    max-width: clamp(190px, 22vw, 280px);
    object-fit: contain;
    animation: none;
    transition: transform 0.3s ease;
}

.nav-logo img:hover {
    transform: scale(1.03);
}

.nav-logo .company-name {
    margin-left: 0;
    font-size: clamp(0.95rem, 0.5vw + 0.8rem, 1.15rem);
    line-height: 1.2;
    white-space: nowrap;
}

.nav-menu {
    flex-shrink: 0;
    align-items: center;
    gap: clamp(0.5rem, 1.2vw, 1.5rem);
}

.nav-link {
    white-space: nowrap;
    padding: 0.5rem clamp(0.7rem, 0.9vw, 1rem);
}

.hero-slider,
.page-banner {
    margin-top: var(--site-nav-height);
}

@media (max-width: 1280px) {
    .nav-container {
        padding-left: 1.5rem;
        padding-right: 1.5rem;
    }

    .nav-logo img {
        max-width: 240px;
    }
}

@media (max-width: 1120px) {
    :root {
        --site-nav-height: 78px;
    }

    .nav-container {
        padding: 0.75rem 1.25rem;
        gap: 0.875rem;
    }

    .nav-logo img {
        max-height: 50px;
        max-width: 210px;
    }

    .nav-logo .company-name {
        font-size: 0.95rem;
    }
}

@media (max-width: 980px) {
    .nav-container {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .nav-logo .company-name {
        display: none;
    }

    .nav-menu {
        gap: 0.375rem;
    }

    .nav-link {
        padding-left: 0.65rem;
        padding-right: 0.65rem;
    }
}

@media (max-width: 768px) {
    .navbar {
        min-height: var(--site-nav-height-mobile);
    }

    .nav-container {
        min-height: var(--site-nav-height-mobile);
        padding: 0.75rem 1rem;
    }

    .nav-logo {
        max-width: calc(100% - 64px);
    }

    .nav-logo a {
        gap: 0.5rem;
    }

    .nav-logo img {
        max-height: 48px;
        max-width: min(210px, 58vw);
    }

    .nav-logo .company-name {
        display: block;
        margin-left: 0;
        font-size: 1.02rem;
        line-height: 1.2;
        white-space: normal;
        max-width: calc(100vw - 170px);
    }

    .nav-menu {
        top: var(--site-nav-height-mobile);
        max-height: calc(100vh - var(--site-nav-height-mobile));
        overflow-y: auto;
        padding: 1.5rem 0 2rem;
    }

    .hero-slider,
    .page-banner {
        margin-top: var(--site-nav-height-mobile);
    }
}

@media (max-width: 575px) {
    :root {
        --site-nav-height-mobile: 72px;
    }

    .nav-container {
        min-height: var(--site-nav-height-mobile);
        padding: 0.625rem 0.875rem;
    }

    .nav-logo {
        max-width: calc(100% - 58px);
    }

    .nav-logo img {
        max-height: 44px;
        max-width: min(190px, 56vw);
    }

    .nav-logo .company-name {
        font-size: 0.94rem;
        max-width: calc(100vw - 150px);
    }

    .nav-menu {
        padding-top: 1.25rem;
    }
}

@media (max-width: 390px) {
    .nav-container {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }

    .nav-logo img {
        max-height: 40px;
        max-width: min(172px, 54vw);
    }

    .nav-logo .company-name {
        font-size: 0.88rem;
        max-width: calc(100vw - 140px);
    }
}

.footer-logo img {
    display: block;
    width: auto;
    height: auto;
    max-height: 64px;
    max-width: min(280px, 100%);
    object-fit: contain;
}

@media (max-width: 575px) {
    .footer-logo img {
        max-height: 56px;
        max-width: 220px;
    }
}

.map-placeholder.map-embed {
    padding: 0;
    height: 320px;
    display: block;
}

.map-placeholder.map-embed iframe {
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
}

.category-item {
    text-decoration: none;
    color: inherit;
}

.form-status {
    padding: 0.75rem 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    font-weight: 500;
}

.form-status.success {
    background: #e8f6ef;
    color: #1e824c;
}

.form-status.error {
    background: #fdecea;
    color: #c0392b;
}

.product-detail-gallery .main-image img {
    display: block;
}

/* AR/VR Page */
.feature-list {
    list-style: none !important;
    padding-left: 0 !important;
    margin: 0;
}

.feature-list li {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
}

.feature-list li i {
    margin-right: 10px;
    color: var(--primary-color);
    width: 20px;
    text-align: center;
}

.intro-text p {
    color: var(--text-dark) !important;
}

/* AR/VR Content Section */
.ar-vr-content-section {
    padding: 60px 0;
    background: #f8f9fa;
}

.ar-vr-content-block {
    margin-bottom: 40px;
    padding: 30px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.ar-vr-content-block:last-child {
    margin-bottom: 0;
}

.ar-vr-content-block h2 {
    font-size: 1.8rem;
    color: #333;
    margin-bottom: 10px;
}

.ar-vr-content-block .subtitle {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 20px;
}

.ar-vr-content-block .content-wrapper {
    display: flex;
    gap: 30px;
    align-items: flex-start;
    flex-wrap: wrap;
}

.ar-vr-content-block .content-image {
    flex: 0 0 300px;
    max-width: 100%;
}

.ar-vr-content-block .content-image img {
    width: 100%;
    height: auto;
    border-radius: 6px;
}

.ar-vr-content-block .content-text {
    flex: 1;
    min-width: 250px;
    line-height: 1.8;
    color: #444;
}

.ar-vr-content-block .content-embed {
    width: 100%;
    margin-top: 20px;
}

.ar-vr-content-block .content-embed iframe {
    max-width: 100%;
    border-radius: 6px;
}

@media (max-width: 768px) {
    .ar-vr-content-block .content-wrapper {
        flex-direction: column;
    }
    
    .ar-vr-content-block .content-image {
        flex: 0 0 auto;
        width: 100%;
    }
}

/* ===== 回到頂端按鈕 ===== */
#back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #8B5A2B;
    color: #fff;
    border: none;
    cursor: pointer;
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
    -webkit-justify-content: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.20);
    opacity: 0;
    visibility: hidden;
    -webkit-transform: translateY(12px);
    transform: translateY(12px);
    -webkit-transition: opacity 0.3s, visibility 0.3s, -webkit-transform 0.3s, background 0.2s;
    transition: opacity 0.3s, visibility 0.3s, transform 0.3s, background 0.2s;
    z-index: 10001;
    -webkit-tap-highlight-color: transparent;
    will-change: opacity, transform;
}
#back-to-top.visible {
    opacity: 1;
    visibility: visible;
    -webkit-transform: translateY(0);
    transform: translateY(0);
}
#back-to-top:hover,
#back-to-top:active {
    background: #6b4520;
}
@media (max-width: 768px) {
    #back-to-top {
        bottom: 24px;
        right: 18px;
        width: 44px;
        height: 44px;
        font-size: 18px;
    }
}