/* ===== Hero ===== */
.sus-hero {
    position: relative;
    width: 100%;
    height: 70vh;
    margin-top: 80px;
    overflow: hidden;
}

.sus-hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.sus-hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.52);
}

.sus-hero-text {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.sus-hero-label {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.75rem;
    letter-spacing: 0.4em;
    color: rgba(255,255,255,0.5);
    font-weight: 400;
    margin-bottom: 1rem;
}

.sus-hero-text h1 {
    font-family: 'Noto Serif TC', serif;
    font-weight: 700;
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    color: #ffffff;
    letter-spacing: 0.05em;
    margin-bottom: 3rem;
}

/* ===== 引言 ===== */
.sus-intro {
    padding: 80px 100px;
    background: #ffffff;
    text-align: center;
}

.sus-intro-inner {
    max-width: 800px;
    margin: 0 auto 4rem;
}

.sus-intro-label {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.72rem;
    letter-spacing: 0.25em;
    color: #cc2229;
    font-weight: 600;
    margin-bottom: 1rem;
}

.sus-intro h2 {
    font-family: 'Noto Serif TC', serif;
    font-size: clamp(2.2rem, 3.5vw, 2.8rem);  
    font-weight: 700;
    color: #1a2f6e;
    margin-bottom: 1.5rem;
}

.sus-intro p {
    font-family: 'Noto Sans TC', sans-serif;
    font-size: 0.95rem;
    color: #555;
    line-height: 2;
    font-weight: 300;
}

/* 跳轉按鈕 */
.sus-nav-btns {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.sus-nav-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 2rem 1.5rem;
    border: 1.5px solid #e8edf5;
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.25s;
    background: #fff;
}

.sus-nav-btn:hover {
    border-color: #cc2229;
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(26,47,110,0.1);
}

.sus-nav-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sus-nav-icon svg {
    width: 28px;
    height: 28px;
    stroke: #1a2f6e;
    fill: none;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: stroke 0.3s;
}

.sus-nav-btn:hover .sus-nav-icon svg {
    stroke: #cc2229;
}

.sus-nav-title {
    font-family: 'Noto Serif TC', serif;
    font-size: 1.1rem;
    font-weight: 700;
    color: #1a2f6e;
}

.sus-nav-sub {
    font-family: 'Noto Sans TC', sans-serif;
    font-size: 0.75rem;
    color: #aaa;
    font-weight: 300;
    text-align: center;
    line-height: 1.5;
}

/* ===== 共用 Section ===== */
.sus-section {
    scroll-margin-top: 80px;
}

.sus-section-inner {
    padding: 80px 100px;
}

.sus-section-light {
    background: #f8f9fb;
}

.sus-section-dark {
    background: #1a2f6e;
}

.sus-section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.sus-label-red {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.72rem;
    letter-spacing: 0.25em;
    color: #cc2229;
    font-weight: 600;
    margin-bottom: 0.8rem;
}

.sus-section-header h2 {
    font-family: 'Noto Serif TC', serif;
    font-size: clamp(2.2rem, 3.5vw, 2.8rem); 
    font-weight: 700;
    color: #1a2f6e;
    margin-bottom: 0.5rem;
}

.sus-h2-white {
    color: #ffffff !important;
}

.sus-subtitle {
    font-family: 'Noto Sans TC', sans-serif;
    font-size: 0.95rem;
    color: #888;
    font-weight: 300;
}

.sus-subtitle-white {
    font-family: 'Noto Sans TC', sans-serif;
    font-size: 0.95rem;
    color: rgba(255,255,255,0.55);
    font-weight: 300;
}

/* ===== 永續環境 ===== */
.sus-env-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.sus-env-card {
    background: #ffffff;
    border-radius: 12px;
    border: 1px solid #e8edf5;
    padding: 2.5rem 2rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.sus-env-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 28px rgba(26, 47, 110, 0.1);
}

/* Large number watermark */
.sus-env-num {
    font-family: 'Montserrat', sans-serif;
    font-size: 5.5rem;
    font-weight: 700;
    color: rgba(26, 47, 110, 0.04);
    position: absolute;
    top: -0.4rem;
    right: 1rem;
    line-height: 1;
    pointer-events: none;
    transition: color 0.3s;
}

.sus-env-card:hover .sus-env-num {
    color: rgba(204, 34, 41, 0.07);
}

/* Icon circle */
.sus-env-icon {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: rgba(26, 47, 110, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: background 0.3s;
}

.sus-env-card:hover .sus-env-icon {
    background: rgba(204, 34, 41, 0.08);
}

.sus-env-icon svg {
    width: 24px;
    height: 24px;
    stroke: #1a2f6e;
    fill: none;
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: stroke 0.3s;
}

.sus-env-card:hover .sus-env-icon svg {
    stroke: #cc2229;
}

.sus-env-card h4 {
    font-family: 'Noto Serif TC', serif;
    font-size: 1.05rem;
    font-weight: 700;
    color: #1a2f6e;
    margin-bottom: 0.8rem;
}

.sus-env-card p {
    font-family: 'Noto Sans TC', sans-serif;
    font-size: 0.85rem;
    color: #666;
    line-height: 1.9;
    font-weight: 300;
}

/* ===== 綠色供應鏈 ===== */
.sus-supply-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.sus-supply-item {
    background: rgba(255,255,255,0.07);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: 12px;
    overflow: hidden;
    transition: background 0.3s, transform 0.3s;
}

.sus-supply-item:hover {
    background: rgba(255,255,255,0.13);
    transform: translateY(-4px);
}

.sus-supply-img {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.sus-supply-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s;
}

.sus-supply-item:hover .sus-supply-img img {
    transform: scale(1.04);
}

.sus-supply-body {
    padding: 1.5rem;
}

.sus-supply-tag {
    display: inline-block;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    color: #cc2229;
    background: rgba(204, 34, 41, 0.12);
    padding: 3px 10px;
    border-radius: 20px;
    margin-bottom: 0.7rem;
}

.sus-supply-body h4 {
    font-family: 'Noto Serif TC', serif;
    font-size: 1rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.6rem;
}

.sus-supply-body p {
    font-family: 'Noto Sans TC', sans-serif;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.7);
    line-height: 1.85;
    font-weight: 300;
}

/* ===== 職場責任 ===== */
.sus-csr-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.sus-csr-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid #e8edf5;
    transition: transform 0.3s, box-shadow 0.3s;
}

.sus-csr-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 28px rgba(26,47,110,0.1);
}

.sus-csr-img {
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.sus-csr-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s;
    display: block;
}

.sus-csr-card:hover .sus-csr-img img {
    transform: scale(1.04);
}

.sus-csr-body {
    padding: 1.5rem;
}

.sus-csr-accent {
    width: 30px;
    height: 2px;
    background: #cc2229;
    margin-bottom: 0.8rem;
}

.sus-csr-body h4 {
    font-family: 'Noto Serif TC', serif;
    font-size: 1rem;
    font-weight: 700;
    color: #1a2f6e;
    margin-bottom: 0.6rem;
}

.sus-csr-body p {
    font-family: 'Noto Sans TC', sans-serif;
    font-size: 0.85rem;
    color: #666;
    line-height: 1.85;
    font-weight: 300;
}

/* ===== EN version — typography overrides ===== */
.lang-en .sus-hero-text h1 {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 600;
    letter-spacing: 0.01em;
}

.lang-en .sus-hero-label,
.lang-en .sus-intro-label,
.lang-en .sus-label-red {
    font-family: 'Montserrat', sans-serif;
}

/* All section h2 titles */
.lang-en .sus-intro h2,
.lang-en .sus-section-header h2 {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 600;
    letter-spacing: 0.005em;
}

/* Subtitles */
.lang-en .sus-intro p,
.lang-en .sus-subtitle,
.lang-en .sus-subtitle-white {
    font-family: 'Montserrat', sans-serif;
    font-weight: 300;
    line-height: 1.85;
}

/* Nav button cards */
.lang-en .sus-nav-title {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 600;
    font-size: 1.25rem;
    letter-spacing: 0.01em;
}

.lang-en .sus-nav-sub {
    font-family: 'Montserrat', sans-serif;
    font-weight: 300;
}

/* Environment cards */
.lang-en .sus-env-card h4 {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 600;
    font-size: 1.2rem;
    letter-spacing: 0.01em;
}

.lang-en .sus-env-card p {
    font-family: 'Montserrat', sans-serif;
    font-weight: 300;
    line-height: 1.8;
}

/* Supply chain cards */
.lang-en .sus-supply-body h4 {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 600;
    font-size: 1.2rem;
    letter-spacing: 0.01em;
}

.lang-en .sus-supply-body p,
.lang-en .sus-supply-tag {
    font-family: 'Montserrat', sans-serif;
}

.lang-en .sus-supply-body p {
    font-weight: 300;
    line-height: 1.8;
}

/* CSR cards */
.lang-en .sus-csr-body h4 {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 600;
    font-size: 1.2rem;
    letter-spacing: 0.01em;
}

.lang-en .sus-csr-body p {
    font-family: 'Montserrat', sans-serif;
    font-weight: 300;
    line-height: 1.8;
}

/* ===== RESPONSIVE — Mobile & Tablet ===== */
@media (max-width: 768px) {

    /* Hero */
    .sus-hero {
        height: 50vh;
        margin-top: 60px;
    }

    .sus-hero-text h1 {
        font-size: clamp(2rem, 8vw, 3rem);
        margin-bottom: 1.5rem;
    }

    .sus-hero-label {
        font-size: 0.6rem;
        letter-spacing: 0.25em;
    }

    /* Intro */
    .sus-intro {
        padding: 40px 20px;
    }

    .sus-intro-inner {
        margin-bottom: 2.5rem;
    }

    .sus-intro h2 {
        font-size: 1.6rem;
    }

    .sus-intro p {
        font-size: 0.85rem;
        line-height: 1.8;
    }

    /* Nav buttons */
    .sus-nav-btns {
        grid-template-columns: 1fr;
        gap: 1rem;
        max-width: 100%;
    }

    .sus-nav-btn {
        padding: 1.5rem 1rem;
        flex-direction: row;
        gap: 1rem;
        align-items: center;
    }

    .sus-nav-icon {
        width: 36px;
        height: 36px;
        flex-shrink: 0;
    }

    .sus-nav-icon svg {
        width: 24px;
        height: 24px;
    }

    .sus-nav-title {
        font-size: 1rem;
    }

    .sus-nav-sub {
        font-size: 0.7rem;
        text-align: left;
    }

    /* All sections */
    .sus-section-inner {
        padding: 40px 20px;
    }

    .sus-section-header {
        margin-bottom: 2.5rem;
    }

    .sus-section-header h2 {
        font-size: 1.6rem;
    }

    .sus-subtitle,
    .sus-subtitle-white {
        font-size: 0.85rem;
    }

    /* Environment cards */
    .sus-env-grid {
        grid-template-columns: 1fr;
        gap: 1.2rem;
    }

    .sus-env-card {
        padding: 2rem 1.5rem;
    }

    .sus-env-num {
        font-size: 4rem;
    }

    .sus-env-card h4 {
        font-size: 0.95rem;
    }

    .sus-env-card p {
        font-size: 0.82rem;
    }

    /* Supply chain cards */
    .sus-supply-grid {
        grid-template-columns: 1fr;
        gap: 1.2rem;
    }

    .sus-supply-body {
        padding: 1.2rem;
    }

    .sus-supply-body h4 {
        font-size: 0.95rem;
    }

    .sus-supply-body p {
        font-size: 0.8rem;
    }

    /* CSR cards */
    .sus-csr-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }

    .sus-csr-body {
        padding: 1rem;
    }

    .sus-csr-body h4 {
        font-size: 0.9rem;
    }

    .sus-csr-body p {
        font-size: 0.78rem;
        line-height: 1.7;
    }
}

@media (max-width: 480px) {

    .sus-hero {
        height: 40vh;
    }

    .sus-csr-grid {
        grid-template-columns: 1fr;
    }

    .sus-nav-btn {
        padding: 1.2rem 1rem;
    }
}