.b2b-inner {
    width: min(1180px, calc(100% - 48px));
    margin: 0 auto;
}

.site-header {
    background: transparent !important;
    transition: background-color 0.25s ease;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 28px;
    color: #1a2942;
    font-family: Inter, sans-serif;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.18em;
}

.menu-toggle,
.menu-close,
.site-menu-panel__brand,
.mega-menu a {
    color: inherit;
    text-decoration: none;
}

.menu-toggle,
.menu-close {
    appearance: none;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 0;
    color: #1a2942;
    background: transparent;
    border: 0;
    border-radius: 0;
    cursor: pointer;
    font: inherit;
    letter-spacing: inherit;
}

.menu-toggle i {
    position: relative;
    width: 42px;
    height: 42px;
    display: inline-grid;
    place-items: center;
    border: 1px solid rgba(26, 41, 66, 0.22);
    border-radius: 50%;
}

.menu-toggle i::before,
.menu-toggle i::after {
    content: "";
    position: absolute;
    width: 16px;
    height: 1px;
    background: #1a2942;
}

.menu-toggle i::before {
    transform: translateY(-4px);
}

.menu-toggle i::after {
    transform: translateY(4px);
}

.site-menu-panel {
    position: fixed;
    inset: 0;
    z-index: 9998;
    visibility: hidden;
    opacity: 0;
    background: #f5f1e8;
    transform: translateY(-16px);
    transition:
        opacity 0.28s ease,
        visibility 0.28s ease,
        transform 0.28s ease;
}

.is-menu-open .site-menu-panel {
    visibility: visible;
    opacity: 1;
    transform: translateY(0);
}

.is-menu-open body {
    overflow: hidden;
}

.site-menu-panel__inner {
    width: min(1180px, calc(100% - 64px));
    min-height: 100%;
    display: flex;
    flex-direction: column;
    margin: 0 auto;
    padding: 42px 0 52px;
}

.site-menu-panel__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.site-menu-panel__brand {
    color: #1a2942;
    font-family: Inter, sans-serif;
    font-size: clamp(22px, 3vw, 34px);
    font-weight: 900;
    letter-spacing: 0.08em;
}

.mega-menu {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 48px;
    margin-top: auto;
    padding-top: 100px;
}

.mega-menu__group {
    display: flex;
    flex-direction: column;
    gap: 18px;
    padding-top: 28px;
    border-top: 1px solid rgba(26, 41, 66, 0.22);
}

.mega-menu__heading {
    margin-bottom: 16px;
    color: #1a2942;
    font-family: Inter, sans-serif;
    font-size: clamp(30px, 4vw, 54px);
    font-weight: 900;
    line-height: 1;
    letter-spacing: 0.02em;
}

.mega-menu__group a:not(.mega-menu__heading) {
    color: #536071;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.is-menu-open .site-header {
    background: transparent;
}

@media (max-width: 980px) {
    .mega-menu {
        grid-template-columns: repeat(2, 1fr);
        gap: 36px;
        padding-top: 72px;
    }
}

.city-hero {
    position: relative;
    min-height: 100vh;
    display: grid;
    grid-template-columns: minmax(360px, 0.82fr) minmax(520px, 1.18fr);
    align-items: center;
    gap: 36px;
    overflow: hidden;
    padding: 132px min(5vw, 72px) 72px;
    color: #1a2942;
    background:
        linear-gradient(180deg, rgba(237, 243, 237, 0.98), rgba(237, 243, 237, 0.96)),
        #edf3ed;
    perspective: 1300px;
}

.city-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 18% 24%, rgba(240, 90, 40, 0.18), transparent 28%),
        radial-gradient(circle at 82% 18%, rgba(26, 41, 66, 0.11), transparent 24%);
    pointer-events: none;
}

.city-hero__copy {
    position: relative;
    z-index: 4;
    width: 100%;
    margin: 0;
}

.city-hero__eyebrow {
    margin: 0 0 18px;
    color: #f05a28;
    font-family: Inter, sans-serif;
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 0.18em;
}

.city-hero h2 {
    max-width: 760px;
    margin: 18px 0 0;
    font-size: clamp(38px, 4.8vw, 74px);
    font-weight: 900;
    line-height: 1.08;
    letter-spacing: 0;
}

.metal-kanji {
    position: relative;
    width: fit-content;
    color: transparent;
    background:
        linear-gradient(115deg, #172237 0%, #eef4f7 18%, #687684 31%, #ffffff 43%, #22324c 56%, #aeb8c2 72%, #0f1b2d 100%);
    -webkit-background-clip: text;
    background-clip: text;
    font-family: "Zen Kaku Gothic New", "Yu Gothic", sans-serif;
    font-size: clamp(58px, 9vw, 148px);
    font-weight: 900;
    line-height: 0.96;
    letter-spacing: 0.03em;
    text-shadow:
        0 1px 0 #fff,
        0 5px 0 rgba(26, 41, 66, 0.16),
        0 18px 34px rgba(26, 41, 66, 0.24);
    transform: skewX(-6deg);
}

.metal-kanji::after {
    content: "尾張車体";
    position: absolute;
    inset: 0;
    z-index: -1;
    color: #172237;
    transform: translate(6px, 8px);
    opacity: 0.18;
}

.city-hero__copy p:not(.city-hero__eyebrow) {
    max-width: 620px;
    margin: 28px 0 0;
    color: #526070;
    font-size: 17px;
    font-weight: 700;
    line-height: 2;
}

.city-scene {
    position: relative;
    z-index: 2;
    min-height: min(62vw, 680px);
    transform-style: preserve-3d;
}

.city-scene--three {
    min-height: min(64vw, 720px);
}

.city-3d-canvas {
    position: absolute;
    inset: 0;
    z-index: 3;
    width: 100%;
    height: 100%;
    display: block;
}

.city-scene--three .iso-world,
.city-scene--three .city-road {
    opacity: 0;
}

.city-road {
    position: absolute;
    left: 50%;
    width: min(920px, 92vw);
    height: 88px;
    background:
        repeating-linear-gradient(90deg, transparent 0 72px, rgba(255,255,255,0.82) 72px 118px, transparent 118px 190px),
        #1a2942;
    border: 4px solid rgba(26, 41, 66, 0.72);
    border-radius: 18px;
    box-shadow:
        0 20px 0 #9cae9d,
        0 38px 34px rgba(26, 41, 66, 0.22);
    transform-style: preserve-3d;
}

.city-road--upper {
    top: 42%;
    transform: translateX(-50%) rotateX(58deg) rotateZ(-18deg);
}

.city-road--lower {
    top: 66%;
    transform: translateX(-50%) rotateX(58deg) rotateZ(-18deg);
}

.iso-world {
    position: absolute;
    inset: 8% 0 0;
    transform: rotateX(58deg) rotateZ(-18deg);
    transform-style: preserve-3d;
}

.iso-tile {
    position: absolute;
    left: 50%;
    top: 50%;
    border: 4px solid rgba(26, 41, 66, 0.14);
    border-radius: 28px;
    transform: translate(-50%, -50%);
    box-shadow: 0 34px 0 rgba(26, 41, 66, 0.08);
}

.iso-tile--main {
    width: min(860px, 84vw);
    height: 520px;
    background:
        linear-gradient(90deg, rgba(255,255,255,0.32) 1px, transparent 1px),
        linear-gradient(0deg, rgba(255,255,255,0.32) 1px, transparent 1px),
        #d6e5d5;
    background-size: 58px 58px;
}

.iso-tile--park {
    width: 220px;
    height: 150px;
    margin-left: -220px;
    margin-top: 92px;
    background: #b8d8ab;
}

.iso-tile--factory {
    width: 260px;
    height: 160px;
    margin-left: 230px;
    margin-top: -92px;
    background: #dce0df;
}

.iso-building,
.iso-tree {
    position: absolute;
    left: 50%;
    top: 50%;
    transform-style: preserve-3d;
}

.iso-building {
    width: 86px;
    height: 86px;
    background: #f7fafc;
    border: 4px solid #1a2942;
    border-radius: 10px;
    box-shadow:
        16px 16px 0 #b9c4c7,
        26px 26px 28px rgba(26, 41, 66, 0.18);
    transform: translate(var(--x), var(--y)) translateZ(var(--z));
}

.iso-building::before,
.iso-building::after {
    content: "";
    position: absolute;
    background: rgba(26, 41, 66, 0.12);
}

.iso-building::before {
    inset: 16px 14px auto;
    height: 8px;
    box-shadow: 0 22px 0 rgba(26, 41, 66, 0.12), 0 44px 0 rgba(26, 41, 66, 0.12);
}

.iso-building::after {
    right: -20px;
    top: 12px;
    width: 16px;
    height: 86px;
    transform: skewY(42deg);
    transform-origin: left top;
}

.iso-building span {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: #f05a28;
    font-size: 46px;
    font-weight: 900;
    transform: rotateZ(18deg) rotateX(-58deg);
}

.iso-building--hospital {
    --x: -250px;
    --y: -126px;
    --z: 90px;
    width: 118px;
    height: 118px;
}

.iso-building--office {
    --x: -60px;
    --y: -176px;
    --z: 140px;
    width: 92px;
    height: 150px;
    background: #e8f0f3;
}

.iso-building--plant {
    --x: 220px;
    --y: -134px;
    --z: 78px;
    width: 150px;
    height: 90px;
    background: #f3eee5;
}

.iso-building--warehouse {
    --x: 168px;
    --y: 88px;
    --z: 70px;
    width: 156px;
    height: 96px;
    background: #fff;
}

.iso-tree {
    width: 34px;
    height: 34px;
    background: #5c9f72;
    border: 4px solid #1a2942;
    border-radius: 50%;
    box-shadow: 10px 10px 0 rgba(26, 41, 66, 0.12);
}

.iso-tree::after {
    content: "";
    position: absolute;
    left: 11px;
    top: 28px;
    width: 8px;
    height: 28px;
    background: #8b6749;
    border: 2px solid #1a2942;
}

.iso-tree--one { transform: translate(-330px, 118px) translateZ(56px); }
.iso-tree--two { transform: translate(-255px, 180px) translateZ(56px); }
.iso-tree--three { transform: translate(16px, 132px) translateZ(56px); }

.city-vehicle {
    position: absolute;
    bottom: 44px;
    height: 86px;
    filter: drop-shadow(0 12px 0 rgba(26, 41, 66, 0.1));
    transform-style: preserve-3d;
}

.city-vehicle--medical {
    left: -260px;
    width: 210px;
    animation: drive-medical 11s linear infinite;
}

.city-vehicle--carrier {
    right: -390px;
    width: 340px;
    animation: drive-carrier 15s linear infinite;
}

.city-vehicle__body,
.city-vehicle__cab,
.city-vehicle__deck {
    position: absolute;
    border: 4px solid #1a2942;
}

.city-vehicle__body {
    inset: 10px 0 16px;
    background:
        linear-gradient(135deg, rgba(255,255,255,0.86), rgba(218, 231, 238, 0.7)),
        #fff;
    border-radius: 18px 26px 12px 12px;
    box-shadow: 12px 12px 0 #b8c4c8;
}

.city-vehicle__window {
    position: absolute;
    right: 22px;
    top: 10px;
    width: 42px;
    height: 22px;
    background: #bcd7e8;
    border: 3px solid #1a2942;
    border-radius: 7px;
}

.city-vehicle__cross {
    position: absolute;
    left: 34px;
    top: 17px;
    width: 34px;
    height: 34px;
}

.city-vehicle__cross::before,
.city-vehicle__cross::after {
    content: "";
    position: absolute;
    background: #f05a28;
    border-radius: 3px;
}

.city-vehicle__cross::before {
    left: 12px;
    top: 0;
    width: 10px;
    height: 34px;
}

.city-vehicle__cross::after {
    left: 0;
    top: 12px;
    width: 34px;
    height: 10px;
}

.city-vehicle__deck {
    left: 8px;
    bottom: 24px;
    width: 218px;
    height: 34px;
    background: linear-gradient(135deg, #fff5ec, #e9bda7);
    border-radius: 10px 10px 4px 4px;
    transform: rotate(-4deg);
}

.city-vehicle__deck span {
    position: absolute;
    bottom: 26px;
    width: 62px;
    height: 30px;
    background: #fff;
    border: 3px solid #1a2942;
    border-radius: 18px 18px 8px 8px;
}

.city-vehicle__deck span:first-child {
    left: 34px;
}

.city-vehicle__deck span:last-child {
    right: 28px;
}

.city-vehicle__cab {
    right: 12px;
    bottom: 16px;
    width: 88px;
    height: 58px;
    background: linear-gradient(135deg, #fff, #dfe9ef);
    border-radius: 18px 26px 10px 8px;
}

.city-vehicle__cab::before {
    content: "";
    position: absolute;
    right: 14px;
    top: 10px;
    width: 34px;
    height: 21px;
    background: #bcd7e8;
    border: 3px solid #1a2942;
    border-radius: 6px;
}

.city-wheel {
    position: absolute;
    bottom: 0;
    width: 28px;
    height: 28px;
    background: #1a2942;
    border: 7px solid #fff;
    border-radius: 50%;
    outline: 4px solid #1a2942;
    animation: wheel-spin 0.8s linear infinite;
}

.city-wheel--one {
    left: 34px;
}

.city-wheel--two {
    right: 34px;
}

.city-wheel--three {
    left: 154px;
}

@keyframes drive-medical {
    0% { transform: translateX(0) translateY(0) rotateZ(1deg); }
    50% { transform: translateX(calc(50vw + 250px)) translateY(-10px) rotateZ(1deg); }
    100% { transform: translateX(calc(100vw + 520px)) translateY(0) rotateZ(1deg); }
}

@keyframes drive-carrier {
    0% { transform: translateX(0) translateY(0) rotateZ(1deg); }
    50% { transform: translateX(calc(-50vw - 360px)) translateY(12px) rotateZ(1deg); }
    100% { transform: translateX(calc(-100vw - 760px)) translateY(0) rotateZ(1deg); }
}

@keyframes wheel-spin {
    to { transform: rotate(360deg); }
}

@media (max-width: 640px) {
    .city-hero {
        grid-template-columns: 1fr;
        padding-top: 112px;
    }

    .city-hero__copy {
        width: min(100% - 28px, 1180px);
    }

    .city-scene {
        min-height: 50vh;
    }

    .metal-kanji {
        font-size: clamp(48px, 18vw, 88px);
    }

    .city-vehicle--carrier {
        width: 270px;
    }
}

@media (max-width: 640px) {
    .site-menu-panel__inner {
        width: min(100% - 28px, 1180px);
        padding-top: 28px;
    }

    .mega-menu {
        grid-template-columns: 1fr;
        gap: 28px;
        padding-top: 54px;
    }
}

.b2b-overview,
.b2b-section,
.b2b-contact-band {
    color: #1a2942;
    background: #fafafc;
}

.b2b-overview {
    padding: 120px 0 96px;
    border-top: 1px solid rgba(26, 41, 66, 0.1);
}

.b2b-section {
    padding: 118px 0;
}

.b2b-section--white {
    background: #fff;
}

.b2b-section--tint {
    background: #f3f6f8;
}

.b2b-section--dark {
    color: #fff;
    background: #1a2942;
}

.b2b-section-head {
    max-width: 780px;
    margin: 0 auto 52px;
    text-align: center;
}

.b2b-section-head--left {
    margin: 0;
    text-align: left;
}

.b2b-eyebrow {
    margin: 0 0 14px;
    color: #f05a28;
    font-family: Inter, sans-serif;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.16em;
}

.b2b-section-head h2,
.b2b-contact-band h2 {
    margin: 0;
    font-size: clamp(32px, 4vw, 56px);
    font-weight: 800;
    line-height: 1.32;
    letter-spacing: 0;
}

.b2b-section-head p:not(.b2b-eyebrow),
.b2b-lead,
.b2b-contact-band p {
    margin: 24px 0 0;
    color: #5f6a79;
    font-size: 16px;
    font-weight: 500;
    line-height: 2;
}

.b2b-section--dark .b2b-section-head p:not(.b2b-eyebrow),
.b2b-section--dark .b2b-lead {
    color: rgba(255, 255, 255, 0.74);
}

.b2b-split {
    display: grid;
    grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.78fr);
    align-items: end;
    gap: 64px;
    margin-bottom: 56px;
}

.b2b-link-grid,
.b2b-card-grid,
.b2b-case-grid,
.b2b-metric-grid {
    display: grid;
    gap: 22px;
}

.b2b-link-grid {
    grid-template-columns: repeat(4, 1fr);
}

.b2b-link-grid a {
    min-height: 142px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 24px;
    color: #1a2942;
    background: #fff;
    border: 1px solid rgba(26, 41, 66, 0.12);
    text-decoration: none;
}

.b2b-link-grid span {
    color: #647184;
    font-size: 13px;
    font-weight: 700;
}

.b2b-link-grid strong {
    font-family: Inter, sans-serif;
    font-size: 26px;
    font-weight: 800;
    line-height: 1;
}

.b2b-card-grid {
    grid-template-columns: repeat(3, 1fr);
}

.b2b-card {
    min-height: 280px;
    padding: 32px;
    background: #fff;
    border: 1px solid rgba(26, 41, 66, 0.12);
}

.b2b-card__num {
    display: block;
    margin-bottom: 34px;
    color: #f05a28;
    font-family: Inter, sans-serif;
    font-size: 13px;
    font-weight: 900;
}

.b2b-card h3,
.b2b-case h3 {
    margin: 0;
    font-size: 23px;
    font-weight: 800;
    line-height: 1.5;
}

.b2b-card p,
.b2b-case p,
.b2b-case span {
    color: #647184;
    font-size: 14px;
    font-weight: 500;
    line-height: 1.9;
}

.b2b-process {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1px;
    margin: 0;
    padding: 0;
    list-style: none;
    background: rgba(26, 41, 66, 0.12);
    border: 1px solid rgba(26, 41, 66, 0.12);
}

.b2b-process li {
    min-height: 250px;
    padding: 28px;
    background: #fff;
}

.b2b-process span {
    display: block;
    margin-bottom: 28px;
    color: #f05a28;
    font-family: Inter, sans-serif;
    font-size: 13px;
    font-weight: 900;
}

.b2b-process strong {
    display: block;
    font-size: 21px;
    font-weight: 800;
}

.b2b-process p {
    margin: 18px 0 0;
    color: #647184;
    font-size: 14px;
    line-height: 1.8;
}

.b2b-text-link {
    justify-self: end;
    color: #f05a28;
    font-weight: 800;
    text-decoration: none;
}

.b2b-case-grid {
    grid-template-columns: repeat(3, 1fr);
}

.b2b-case {
    overflow: hidden;
    background: #fff;
    border: 1px solid rgba(26, 41, 66, 0.12);
}

.b2b-case__image {
    min-height: 220px;
    background-size: cover;
    background-position: center;
}

.b2b-case__image--carrier {
    background-image: url("https://images.unsplash.com/photo-1616423640778-28d1b53229bd?q=80&w=1200&auto=format&fit=crop");
}

.b2b-case__image--medical {
    background-image: url("https://images.unsplash.com/photo-1504917595217-d4dc5ebe6122?q=80&w=1200&auto=format&fit=crop");
}

.b2b-case__image--custom {
    background-image: url("https://images.unsplash.com/photo-1581091226825-a6a2a5aee158?q=80&w=1200&auto=format&fit=crop");
}

.b2b-case__body {
    padding: 28px;
}

.b2b-case__body p {
    margin: 0 0 12px;
    color: #f05a28;
    font-weight: 800;
}

.b2b-case__body span {
    display: block;
    margin-top: 18px;
}

.b2b-metric-grid {
    grid-template-columns: repeat(4, 1fr);
}

.b2b-metric-grid div {
    min-height: 170px;
    padding: 28px;
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.b2b-metric-grid strong {
    display: block;
    margin-bottom: 34px;
    color: #f05a28;
    font-family: Inter, sans-serif;
    font-size: 24px;
    font-weight: 800;
}

.b2b-metric-grid span {
    color: rgba(255, 255, 255, 0.78);
    font-size: 14px;
    line-height: 1.8;
}

.b2b-news-list {
    border-top: 1px solid rgba(26, 41, 66, 0.12);
}

.b2b-news-list a {
    display: grid;
    grid-template-columns: 140px 1fr;
    gap: 28px;
    padding: 24px 0;
    color: #1a2942;
    border-bottom: 1px solid rgba(26, 41, 66, 0.12);
    text-decoration: none;
}

.b2b-news-list time {
    color: #647184;
    font-family: Inter, sans-serif;
    font-size: 13px;
    font-weight: 700;
}

.b2b-news-list span {
    font-weight: 700;
}

.b2b-contact-band {
    padding: 86px 0;
    color: #fff;
    background: #f05a28;
}

.b2b-contact-band__inner {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 48px;
}

.b2b-contact-band .b2b-eyebrow,
.b2b-contact-band p {
    color: rgba(255, 255, 255, 0.82);
}

.b2b-contact-band a {
    min-width: 210px;
    min-height: 62px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #1a2942;
    background: #fff;
    font-weight: 900;
    text-decoration: none;
}

.corporate-page {
    color: #1a2942;
    background: #fff;
}

.corporate-page-hero {
    padding: 180px 0 94px;
    background: #f3f6f8;
}

.corporate-page-hero h1 {
    max-width: 820px;
    margin: 0;
    font-size: clamp(42px, 5vw, 72px);
    font-weight: 850;
    line-height: 1.2;
}

.corporate-page-body {
    padding: 96px 0 120px;
}

.corporate-content-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: 70px;
}

.corporate-content-grid h2 {
    margin: 0;
    font-size: clamp(30px, 3vw, 46px);
    font-weight: 850;
    line-height: 1.35;
}

.corporate-content-grid p,
.corporate-content-grid li {
    color: #5f6a79;
    font-size: 16px;
    line-height: 2;
}

.corporate-content-grid ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.corporate-content-grid li {
    padding: 18px 0;
    border-bottom: 1px solid rgba(26, 41, 66, 0.12);
}

@media (max-width: 980px) {
    .b2b-split,
    .b2b-contact-band__inner,
    .corporate-content-grid {
        grid-template-columns: 1fr;
    }

    .b2b-link-grid,
    .b2b-card-grid,
    .b2b-case-grid,
    .b2b-metric-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .b2b-process {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .b2b-inner {
        width: min(100% - 28px, 1180px);
    }

    .b2b-overview,
    .b2b-section,
    .corporate-page-body {
        padding: 74px 0;
    }

    .b2b-link-grid,
    .b2b-card-grid,
    .b2b-case-grid,
    .b2b-metric-grid {
        grid-template-columns: 1fr;
    }

    .b2b-news-list a {
        grid-template-columns: 1fr;
        gap: 8px;
    }
}