/* ==========================================================================
   Page Hero
   ========================================================================== */
.page-hero {
    position: relative;
    height: 55vh;
    min-height: 380px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.page-hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('images/about-hero.webp');
    background-size: cover;
    background-position: center 40%;
    z-index: 0;
}

.page-hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.78);
}

.page-hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    animation: heroFadeIn 1s ease-out both;
}

.page-hero-label {
    display: block;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.4em;
    color: var(--color-accent);
    margin-bottom: 1.25rem;
}

.page-hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.25rem, 5vw, 4rem);
    font-weight: 700;
    color: #ffffff;
    letter-spacing: 0.06em;
    line-height: 1.2;
    margin-bottom: 0.875rem;
}

.page-hero-en {
    font-size: clamp(0.875rem, 1.5vw, 1.0625rem);
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.3em;
    font-weight: 300;
}

/* ==========================================================================
   Mission
   ========================================================================== */
.about-mission {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 560px;
}

.about-mission-img {
    overflow: hidden;
}

.about-mission-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-mission-body {
    padding: 5rem 4rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    background: var(--color-bg);
}

.about-mission-heading {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 3.5vw, 3rem);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.3;
    letter-spacing: 0.04em;
    margin: 1rem 0 2rem;
}

.about-mission-text {
    font-size: 0.9375rem;
    line-height: 2.2;
    color: var(--color-text-light);
    margin-bottom: 1.25rem;
}

.about-mission-text:last-child {
    margin-bottom: 0;
}

/* ==========================================================================
   Numbers
   ========================================================================== */
.about-numbers {
    background: var(--color-primary);
    padding: 5.5rem 0;
}

.numbers-list {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    list-style: none;
    gap: 0;
}

.numbers-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 2.5rem 0 1.5rem;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
}

.numbers-item:last-child {
    border-right: none;
}

.numbers-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 2.5rem;
    height: 2px;
    background: var(--color-accent);
    transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
}

.numbers-item.is-visible::before {
    transform: translateX(-50%) scaleX(1);
}

.numbers-num {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    color: #ffffff;
    letter-spacing: 0.04em;
    line-height: 1;
    font-family: var(--font-serif);
}

.numbers-unit {
    font-size: 1.25rem;
    font-weight: 600;
}

.numbers-label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    color: rgba(255, 255, 255, 0.45);
}

/* ==========================================================================
   Values
   ========================================================================== */
.about-values {
    padding: 10rem 0;
    background: var(--color-bg-alt);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.values-card {
    background: var(--color-bg);
    padding: 2.75rem 2rem;
    border-top: 3px solid var(--color-accent);
}

.values-num {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    font-family: var(--font-serif);
    color: var(--color-accent);
    opacity: 0.2;
    line-height: 1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.values-title {
    font-family: var(--font-serif);
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 0.04em;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.values-text {
    font-size: 0.875rem;
    line-height: 2;
    color: var(--color-text-light);
}

/* ==========================================================================
   Vision Banner
   ========================================================================== */
.about-vision {
    position: relative;
    height: 35vh;
    min-height: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.about-vision-bg {
    position: absolute;
    inset: -10px;
    background-image: url('images/hero-bg.webp');
    background-size: cover;
    background-position: center 60%;
    filter: blur(3px);
    transform: scale(1.04);
    z-index: 0;
}

.about-vision-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.58);
}

.about-vision-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.about-vision-label {
    display: block;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.4em;
    color: var(--color-accent);
    margin-bottom: 1rem;
}

.about-vision-text {
    font-family: var(--font-serif);
    font-size: clamp(1.5rem, 3.5vw, 2.75rem);
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 0.15em;
}

/* ==========================================================================
   Message
   ========================================================================== */
.about-message {
    padding: 10rem 0;
    background: var(--color-bg-alt);
}

.message-inner {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 5rem;
    align-items: start;
}

.message-left {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    position: sticky;
    top: 8rem;
}

.message-profile {
    padding-top: 1.5rem;
    border-top: 2px solid var(--color-accent);
}

.message-role {
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    margin-bottom: 0.875rem;
}

.message-name {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--color-primary);
    letter-spacing: 0.1em;
    line-height: 1.4;
}

.message-right {
    padding-top: 0.5rem;
}

.message-catch {
    font-family: var(--font-serif);
    font-size: clamp(1.25rem, 2.5vw, 1.875rem);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.6;
    letter-spacing: 0.04em;
    margin-bottom: 2.5rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid var(--color-border);
}

.message-body {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.message-body p {
    font-size: 0.9375rem;
    line-height: 2.2;
    color: var(--color-text-light);
}

/* ==========================================================================
   Company Info
   ========================================================================== */
.about-info {
    padding: 10rem 0;
    background: var(--color-bg);
}

.info-table {
    max-width: 760px;
}

.info-row {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 2rem;
    padding: 1.375rem 0;
    border-bottom: 1px solid var(--color-border);
}

.info-row:first-child {
    border-top: 1px solid var(--color-border);
}

.info-row dt {
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--color-text-lighter);
    letter-spacing: 0.08em;
}

.info-row dd {
    font-size: 0.9375rem;
    color: var(--color-text);
    line-height: 1.7;
}

.info-row dd a {
    color: var(--color-accent);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition-base);
}

.info-row dd a:hover {
    border-bottom-color: var(--color-accent);
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px) {
    .about-mission {
        grid-template-columns: 1fr;
    }

    .about-mission-img {
        height: 360px;
    }

    .about-mission-body {
        padding: 3.5rem 3rem;
    }

    .values-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
    }

    .message-inner {
        grid-template-columns: 180px 1fr;
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .about-mission-img {
        height: 260px;
    }

    .about-mission-body {
        padding: 2.5rem var(--container-padding);
    }

    .numbers-list {
        grid-template-columns: repeat(2, 1fr);
    }

    .numbers-item {
        border-right: none;
        border-bottom: 1px solid rgba(255,255,255,0.1);
        padding: 1.5rem 0;
    }

    .message-inner {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .message-photo {
        aspect-ratio: 4 / 3;
        max-width: 320px;
    }

    .info-row {
        grid-template-columns: 110px 1fr;
        gap: 1rem;
    }
}