/* ==========================================================================
   01 HERO
   ========================================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    overflow: hidden;
}

.hero__petals {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero__petal {
    --petal-color: var(--color-dark-navy);
    position: absolute;
    top: var(--top);
    left: var(--left);
    width: var(--size);
    height: var(--size);
    opacity: 0;
    fill: var(--petal-color);
    transform: scale(0.6);
    transition: opacity 1.4s var(--ease-soft), transform 1.4s var(--ease-soft);
    transition-delay: var(--enter-delay, 0ms);
    will-change: transform;
}

.hero__petal svg {
    width: 100%;
    height: 100%;
    opacity: 0.5;
}

[data-hero-entrance].is-entered .hero__petal {
    opacity: 1;
    transform: scale(1);
}

.hero__content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.hero__copy {
    margin-top: 28px;
    font-size: var(--fs-hero);
    line-height: 1.5;
    letter-spacing: 0.05em;
}

.hero__copy-en {
    margin-top: 28px;
    font-family: var(--font-serif-en);
    font-size: clamp(0.95rem, 1.6vw, 1.2rem);
    letter-spacing: var(--ls-wide);
    color: var(--color-text-muted);
}

.hero__scroll {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
    margin-top: clamp(64px, 8vw, 110px);
}

.hero__scroll-line {
    width: 1px;
    height: 46px;
    background: var(--color-line);
    position: relative;
    overflow: hidden;
}

.hero__scroll-line::after {
    content: '';
    position: absolute;
    top: -100%;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-dark-navy);
    animation: scrollLine 2.6s var(--ease-soft) infinite;
}

@keyframes scrollLine {
    0% { top: -100%; }
    60% { top: 100%; }
    100% { top: 100%; }
}

.hero__scroll-label {
    font-family: var(--font-serif-en);
    font-size: 0.7rem;
    letter-spacing: var(--ls-label);
    color: var(--color-text-muted);
}

@media (prefers-reduced-motion: reduce) {
    .hero__scroll-line::after {
        animation: none;
        top: 0;
    }
}

/* ==========================================================================
   02 INTRODUCTION
   ========================================================================== */
.intro__grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: clamp(40px, 6vw, 100px);
}

.intro__copy {
    margin-top: 20px;
    font-size: var(--fs-h1);
    line-height: 1.6;
}

.intro__lead {
    margin-top: 32px;
    margin-bottom: 40px;
}

.intro__mark {
    justify-self: center;
    width: min(100%, 420px);
    opacity: 0.2;
}

.intro__mark-img {
    display: block;
    width: 100%;
    height: auto;
    animation: spinSlow 90s linear infinite;
}

@keyframes spinSlow {
    to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
    .intro__mark-img { animation: none; }
}

/* ==========================================================================
   03 MISSION
   ========================================================================== */
.mission__inner {
    text-align: center;
}

.mission__copy {
    margin-top: 28px;
    font-family: var(--font-serif-jp);
    font-size: clamp(2rem, 5.4vw, 4.2rem);
    line-height: 1.55;
    letter-spacing: 0.05em;
}

/* ==========================================================================
   04 VISION
   ========================================================================== */
.vision__grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
    gap: clamp(40px, 6vw, 100px);
}

.vision__mark {
    display: block;
    width: min(100%, 380px);
    height: auto;
    opacity: 1;
}

.vision__text {
    text-align: right;
}

.vision__copy {
    margin-top: 28px;
    font-family: var(--font-serif-jp);
    font-size: clamp(2rem, 5vw, 3.6rem);
    line-height: 1.55;
    letter-spacing: 0.05em;
}

/* ==========================================================================
   05 VALUE
   ========================================================================== */
.value__list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: var(--color-line);
    border-top: 1px solid var(--color-line);
    border-bottom: 1px solid var(--color-line);
}

.value__item {
    background: var(--color-off-white);
    padding: clamp(48px, 6vw, 80px) clamp(28px, 4vw, 56px);
}

.value__number {
    display: block;
    font-family: var(--font-serif-en);
    font-size: 1rem;
    letter-spacing: var(--ls-wide);
    color: var(--color-text-muted);
}

.value__title {
    margin-top: 20px;
    font-size: var(--fs-h2);
}

.value__text {
    margin-top: 20px;
    color: var(--color-text-soft);
    line-height: var(--lh-base);
}

/* ==========================================================================
   06 EIGHT VALUES
   ========================================================================== */
.eight {
    overflow: hidden;
}

.eight .section-head {
    text-align: center;
}

.eight__track-wrap {
    margin-top: clamp(40px, 5vw, 64px);
    overflow-x: auto;
    scrollbar-width: thin;
    padding-bottom: 12px;
    -webkit-overflow-scrolling: touch;
}

.eight__track {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(200px, 240px);
    gap: 1px;
    background: var(--color-line);
    width: max-content;
    padding-inline: var(--container-padding);
    margin-inline: auto;
}

.eight__item {
    position: relative;
    background: var(--color-white);
    padding: 44px 28px 40px;
    border-top: 3px solid var(--c);
}

.eight__no {
    font-family: var(--font-serif-en);
    font-size: 0.78rem;
    letter-spacing: var(--ls-wide);
    color: var(--color-text-muted);
}

.eight__petal {
    display: block;
    width: 34px;
    height: 34px;
    margin-top: 18px;
    fill: var(--c);
    opacity: 0.85;
}

.eight__ja {
    margin-top: 22px;
    font-family: var(--font-serif-jp);
    font-size: 1.9rem;
    letter-spacing: 0.08em;
}

.eight__en {
    margin-top: 6px;
    font-family: var(--font-serif-en);
    font-size: 0.8rem;
    letter-spacing: var(--ls-label);
    color: var(--color-text-muted);
}

.eight__theme {
    margin-top: 22px;
    font-size: 0.92rem;
    letter-spacing: 0.1em;
    color: var(--c);
    font-weight: 500;
}

.eight__text {
    margin-top: 14px;
    font-size: 0.86rem;
    line-height: 1.9;
    color: var(--color-text-soft);
}

/* ==========================================================================
   07 CONCEPT
   ========================================================================== */
.concept__diagram {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    flex-wrap: wrap;
    gap: clamp(16px, 2.4vw, 32px);
    margin-top: clamp(48px, 6vw, 80px);
}

.concept__step {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: clamp(140px, 18vw, 190px);
}

.concept__step-figure {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 84px;
    height: 84px;
    color: var(--color-dark-navy);
}

svg.concept__step-figure {
    fill: var(--color-dark-navy);
    opacity: 0.85;
}

.concept__step-figure--eight,
.concept__step-figure--infinity {
    font-family: var(--font-serif-en);
    font-size: 3rem;
    border: 1px solid var(--color-line);
    border-radius: 50%;
}

.concept__step-label {
    margin-top: 18px;
    font-family: var(--font-serif-jp);
    font-size: 1rem;
    letter-spacing: 0.06em;
}

.concept__step-desc {
    margin-top: 10px;
    font-size: 0.82rem;
    line-height: 1.8;
    color: var(--color-text-muted);
}

.concept__plus {
    align-self: center;
    margin-top: 26px;
    font-family: var(--font-serif-en);
    font-size: 1.6rem;
    color: var(--color-text-muted);
}

.concept__result {
    margin-top: clamp(56px, 7vw, 96px);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.concept__arrow-down {
    font-family: var(--font-serif-en);
    font-size: 1.6rem;
    color: var(--color-text-muted);
    margin-bottom: 28px;
}

.concept__logo {
    width: 96px;
    height: 96px;
}

.concept__result-text {
    margin-top: 20px;
    font-size: 1.6rem;
    letter-spacing: 0.28em;
}

/* ==========================================================================
   08 COMPANY BRIEF
   ========================================================================== */
.company-brief__grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: clamp(40px, 6vw, 100px);
}

.company-brief__head .btn-line {
    margin-top: 32px;
}

.company-brief__table {
    border-top: 1px solid var(--color-line);
}

.company-brief__row {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 24px;
    padding: 22px 0;
    border-bottom: 1px solid var(--color-line);
}

.company-brief__row dt {
    font-family: var(--font-serif-en);
    font-size: 0.78rem;
    letter-spacing: var(--ls-label);
    color: var(--color-text-muted);
    padding-top: 4px;
}

.company-brief__row dd {
    line-height: 1.8;
}

.company-brief__en {
    display: block;
    margin-top: 4px;
    font-family: var(--font-serif-en);
    font-size: 0.82rem;
    letter-spacing: var(--ls-wide);
    color: var(--color-text-muted);
}

/* ==========================================================================
   09 CONTACT CTA
   ========================================================================== */
.contact-cta__inner {
    text-align: center;
}

.contact-cta__lead {
    margin: 24px auto 0;
    color: var(--color-text-soft);
}

.contact-cta__actions {
    margin-top: 48px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 28px;
}

.contact-cta__direct {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    font-family: var(--font-serif-en);
    letter-spacing: var(--ls-wide);
}

.contact-cta__tel {
    font-size: 1.1rem;
}

.contact-cta__mail:hover,
.contact-cta__tel:hover {
    color: var(--color-ume);
}