:root {
    --bg: #07111f;
    --bg-soft: #0c1a30;
    --surface: rgba(10, 20, 38, 0.72);
    --surface-strong: rgba(13, 28, 50, 0.92);
    --card: rgba(255, 255, 255, 0.06);
    --line: rgba(255, 255, 255, 0.11);
    --text: #eef5ff;
    --muted: #b2c2d9;
    --primary: #81a9ff;
    --accent: #7de4ff;
    --accent-2: #99ffd5;
    --shadow: 0 18px 50px rgba(0, 0, 0, 0.24);
    --radius-xl: 28px;
    --radius-lg: 22px;
    --radius-md: 16px;
    --radius-sm: 12px;
    --container: min(1120px, calc(100% - 40px));
    --transition: 220ms ease;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--text);
    font-family: Inter, "Noto Sans JP", "Hiragino Sans", "Yu Gothic UI", "Meiryo", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    background: radial-gradient(circle at top left, rgba(129, 169, 255, 0.18), transparent 28%), radial-gradient(circle at top right, rgba(125, 228, 255, 0.16), transparent 28%), radial-gradient(circle at 70% 30%, rgba(153, 255, 213, 0.10), transparent 18%), linear-gradient(180deg, #050d18 0%, #07111f 30%, #09172b 100%);
    line-height: 1.7;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    display: block;
}

button {
    font: inherit;
}

.skip-link {
    position: absolute;
    left: 12px;
    top: -100px;
    padding: 10px 14px;
    border-radius: 999px;
    background: #fff;
    color: #0b1320;
    z-index: 1000;
    transition: top var(--transition);
}

    .skip-link:focus {
        top: 12px;
    }

.site-shell {
    position: relative;
    isolation: isolate;
}

    .site-shell::before,
    .site-shell::after {
        content: "";
        position: fixed;
        inset: auto;
        width: 36rem;
        height: 36rem;
        border-radius: 999px;
        filter: blur(100px);
        pointer-events: none;
        z-index: -1;
        opacity: 0.36;
    }

    .site-shell::before {
        top: -10rem;
        right: -8rem;
        background: rgba(125, 228, 255, 0.14);
    }

    .site-shell::after {
        bottom: 6rem;
        left: -10rem;
        background: rgba(129, 169, 255, 0.16);
    }

.container {
    width: var(--container);
    margin-inline: auto;
}

.section {
    padding: 88px 0;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 18px;
    padding: 9px 14px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--accent);
    font-size: 0.86rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    backdrop-filter: blur(16px);
}

    .eyebrow::before {
        content: "";
        width: 8px;
        height: 8px;
        border-radius: 50%;
        background: linear-gradient(180deg, var(--accent), var(--primary));
        box-shadow: 0 0 0 5px rgba(125, 228, 255, 0.12);
    }

.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    backdrop-filter: blur(18px);
    background: rgba(6, 13, 24, 0.62);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    min-height: 78px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.brand-mark {
    display: inline-grid;
    place-items: center;
    width: 42px;
    height: 42px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(129, 169, 255, 0.32), rgba(125, 228, 255, 0.16)), rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
    font-size: 1.05rem;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

    .site-nav a:not(.btn) {
        padding: 10px 14px;
        border-radius: 999px;
        color: var(--muted);
        transition: color var(--transition), background var(--transition);
    }

        .site-nav a:not(.btn):hover {
            color: var(--text);
            background: rgba(255, 255, 255, 0.06);
        }

.nav-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 46px;
    height: 46px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    cursor: pointer;
}

    .nav-toggle svg {
        width: 22px;
        height: 22px;
    }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 52px;
    padding: 0 22px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 600;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
    white-space: nowrap;
}

    .btn:hover {
        transform: translateY(-1px);
    }

    .btn.primary {
        color: #07101e;
        background: linear-gradient(135deg, var(--accent), var(--primary));
        box-shadow: 0 16px 32px rgba(92, 168, 255, 0.22);
    }

    .btn.secondary {
        border-color: rgba(255, 255, 255, 0.14);
        background: rgba(255, 255, 255, 0.06);
        color: var(--text);
    }

        .btn.secondary:hover,
        .btn.ghost:hover {
            background: rgba(255, 255, 255, 0.10);
        }

    .btn.ghost {
        min-height: 44px;
        padding-inline: 16px;
        border-color: rgba(255, 255, 255, 0.12);
        background: rgba(255, 255, 255, 0.04);
        color: var(--text);
    }

.hero {
    padding: 84px 0 48px;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.12fr) minmax(360px, 0.88fr);
    gap: 44px;
    align-items: center;
}

.hero-copy h1 {
    margin: 0 0 18px;
    font-size: clamp(2.7rem, 4vw, 4.65rem);
    line-height: 1.05;
    letter-spacing: -0.04em;
}

    .hero-copy h1 span {
        display: inline-block;
        background: linear-gradient(135deg, #ffffff 12%, var(--accent) 52%, var(--primary) 100%);
        -webkit-background-clip: text;
        background-clip: text;
        color: transparent;
    }

.hero-copy p {
    margin: 0;
    max-width: 62ch;
    color: var(--muted);
    font-size: 1.05rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 30px;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 28px 0 0;
    padding: 0;
    list-style: none;
}

    .hero-badges li {
        padding: 9px 12px;
        border-radius: 999px;
        border: 1px solid rgba(255, 255, 255, 0.10);
        background: rgba(255, 255, 255, 0.04);
        color: #d9e8fb;
        font-size: 0.92rem;
    }

.hero-card {
    position: relative;
    overflow: hidden;
    padding: 24px;
    border-radius: var(--radius-xl);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.03)), rgba(8, 17, 30, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.10);
    box-shadow: var(--shadow);
    backdrop-filter: blur(24px);
}

    .hero-card::before {
        content: "";
        position: absolute;
        inset: auto -80px -90px auto;
        width: 220px;
        height: 220px;
        background: radial-gradient(circle, rgba(125, 228, 255, 0.24), transparent 70%);
        pointer-events: none;
    }

.hero-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
}

.hero-card-label {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    color: #dbeaff;
    font-size: 0.86rem;
}

.pulse {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--accent-2);
    box-shadow: 0 0 0 6px rgba(153, 255, 213, 0.10);
}

.platform-map {
    display: grid;
    gap: 16px;
}

.platform-core {
    position: relative;
    width: 100%;
    padding: 22px;
    border-radius: 24px;
    text-align: left;
    background: linear-gradient(135deg, rgba(129, 169, 255, 0.22), rgba(125, 228, 255, 0.12)), rgba(10, 20, 38, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.14);
    box-shadow: 0 20px 42px rgba(0, 0, 0, 0.26);
}

    .platform-core h2,
    .platform-core p {
        margin: 0;
    }

    .platform-core h2 {
        font-size: 1.45rem;
        letter-spacing: -0.03em;
    }

    .platform-core p {
        margin-top: 10px;
        color: #dbe7f8;
        font-size: 0.95rem;
    }

.platform-services {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.node {
    width: 100%;
    padding: 18px 18px 16px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.10);
    box-shadow: var(--shadow);
    backdrop-filter: blur(12px);
}

    .node small {
        display: inline-block;
        margin-bottom: 8px;
        color: var(--accent);
        letter-spacing: 0.08em;
        text-transform: uppercase;
        font-size: 0.74rem;
    }

    .node strong {
        display: block;
        margin-bottom: 6px;
        font-size: 1.05rem;
    }

    .node span {
        display: block;
        color: var(--muted);
        font-size: 0.92rem;
        line-height: 1.6;
    }

.node-wide {
    grid-column: 1 / -1;
}

.connector {
    display: none;
}

.metrics {
    padding-top: 24px;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.metric-card,
.service-card,
.flow-card,
.value-card,
.cta-card,
.footer-card {
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.10);
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(16px);
    box-shadow: var(--shadow);
}

.metric-card {
    padding: 22px;
}

    .metric-card strong {
        display: block;
        margin-bottom: 8px;
        font-size: 1.2rem;
        letter-spacing: -0.02em;
    }

    .metric-card p {
        margin: 0;
        color: var(--muted);
        font-size: 0.96rem;
    }

.section-head {
    display: grid;
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1fr);
    gap: 28px;
    align-items: end;
    margin-bottom: 26px;
}

    .section-head h2 {
        margin: 0;
        font-size: clamp(2rem, 3vw, 3rem);
        line-height: 1.1;
        letter-spacing: -0.04em;
    }

    .section-head p {
        margin: 0;
        color: var(--muted);
    }

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.service-card {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 18px;
    padding: 24px;
    min-height: 100%;
    overflow: hidden;
    transition: transform var(--transition), border-color var(--transition);
}

    .service-card:hover,
    .flow-card:hover,
    .value-card:hover {
        transform: translateY(-4px);
        border-color: rgba(129, 169, 255, 0.34);
    }

    .service-card::after {
        content: "";
        position: absolute;
        inset: auto auto -60px -60px;
        width: 160px;
        height: 160px;
        border-radius: 50%;
        background: radial-gradient(circle, rgba(129, 169, 255, 0.18), transparent 70%);
        pointer-events: none;
    }

.service-icon {
    display: inline-grid;
    place-items: center;
    width: 56px;
    height: 56px;
    border-radius: 18px;
    background: linear-gradient(135deg, rgba(129, 169, 255, 0.22), rgba(125, 228, 255, 0.12));
    border: 1px solid rgba(255, 255, 255, 0.12);
    font-size: 1.35rem;
}

.service-label {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    width: fit-content;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--accent);
    font-size: 0.83rem;
}

.service-card h3 {
    margin: 0;
    font-size: 1.35rem;
    line-height: 1.3;
    letter-spacing: -0.03em;
}

.service-card p {
    margin: 0;
    color: var(--muted);
}

.feature-list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 10px;
}

    .feature-list li {
        display: flex;
        gap: 10px;
        color: #dbe7f8;
        font-size: 0.96rem;
    }

        .feature-list li::before {
            content: "•";
            color: var(--accent);
            font-size: 1.1rem;
            line-height: 1;
            margin-top: 2px;
        }

.service-actions {
    margin-top: auto;
    padding-top: 10px;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #f1f6ff;
    font-weight: 600;
}

.band {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.flow-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.flow-card {
    position: relative;
    padding: 24px;
    overflow: hidden;
    transition: transform var(--transition), border-color var(--transition);
}

.flow-step {
    display: inline-grid;
    place-items: center;
    width: 52px;
    height: 52px;
    border-radius: 16px;
    margin-bottom: 18px;
    background: linear-gradient(135deg, rgba(125, 228, 255, 0.22), rgba(129, 169, 255, 0.12));
    border: 1px solid rgba(255, 255, 255, 0.14);
    font-weight: 700;
}

.flow-card h3 {
    margin: 0 0 10px;
    font-size: 1.26rem;
    letter-spacing: -0.03em;
}

.flow-card p {
    margin: 0;
    color: var(--muted);
}

.value-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 18px;
    align-items: stretch;
}

.value-lead {
    padding: 30px;
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.10);
    background: linear-gradient(160deg, rgba(129, 169, 255, 0.16), rgba(125, 228, 255, 0.06)), rgba(255, 255, 255, 0.04);
    box-shadow: var(--shadow);
}

    .value-lead h2 {
        margin: 0 0 14px;
        font-size: clamp(2rem, 3vw, 2.8rem);
        line-height: 1.1;
        letter-spacing: -0.04em;
    }

    .value-lead p {
        margin: 0;
        color: #d8e7fb;
    }

.value-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

.value-card {
    padding: 22px;
    transition: transform var(--transition), border-color var(--transition);
}

    .value-card strong {
        display: block;
        margin-bottom: 10px;
        font-size: 1.05rem;
    }

    .value-card p {
        margin: 0;
        color: var(--muted);
        font-size: 0.95rem;
    }

.cta-card {
    position: relative;
    overflow: hidden;
    padding: 34px;
    background: linear-gradient(135deg, rgba(129, 169, 255, 0.18), rgba(125, 228, 255, 0.10)), rgba(8, 17, 30, 0.8);
}

    .cta-card::before {
        content: "";
        position: absolute;
        inset: auto -80px -100px auto;
        width: 240px;
        height: 240px;
        border-radius: 50%;
        background: radial-gradient(circle, rgba(125, 228, 255, 0.18), transparent 72%);
        pointer-events: none;
    }

    .cta-card h2 {
        margin: 0 0 12px;
        font-size: clamp(2rem, 3vw, 3.1rem);
        letter-spacing: -0.04em;
        line-height: 1.05;
    }

    .cta-card p {
        margin: 0;
        max-width: 58ch;
        color: #dbe8fb;
    }

.cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 26px;
}

.footer {
    padding: 28px 0 40px;
}

.footer-card {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 18px;
    padding: 24px;
}

.footer-brand strong {
    display: block;
    margin-bottom: 8px;
    font-size: 1.08rem;
}

.footer-brand p,
.footer-links p {
    margin: 0;
    color: var(--muted);
    font-size: 0.92rem;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 14px;
    align-items: center;
}

    .footer-links a {
        color: #deebff;
    }

        .footer-links a:hover {
            color: var(--accent);
        }

@media (max-width: 1080px) {
    .hero-grid,
    .section-head,
    .value-layout {
        grid-template-columns: 1fr;
    }

    .services-grid,
    .flow-grid,
    .value-grid,
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-card {
        order: -1;
    }
}

@media (max-width: 820px) {
    .site-nav {
        position: absolute;
        left: 20px;
        right: 20px;
        top: calc(100% + 10px);
        display: none;
        flex-direction: column;
        align-items: stretch;
        padding: 14px;
        border-radius: 22px;
        border: 1px solid rgba(255, 255, 255, 0.10);
        background: rgba(8, 17, 30, 0.96);
        box-shadow: var(--shadow);
    }

        .site-nav.open {
            display: flex;
        }

        .site-nav a:not(.btn) {
            padding: 12px 14px;
        }

    .nav-toggle {
        display: inline-flex;
    }

    .header-inner {
        min-height: 74px;
    }

    .hero {
        padding-top: 56px;
    }

    .hero-copy h1 {
        font-size: clamp(2.35rem, 10vw, 3.4rem);
    }

    .services-grid,
    .flow-grid,
    .value-grid,
    .metrics-grid {
        grid-template-columns: 1fr;
    }

}

@media (max-width: 620px) {
    .section {
        padding: 72px 0;
    }

    .hero {
        padding-bottom: 28px;
    }

    .container {
        width: min(100% - 24px, 1120px);
    }

    .hero-actions,
    .cta-actions {
        flex-direction: column;
    }

    .btn,
    .btn.ghost {
        width: 100%;
    }

    .hero-card,
    .service-card,
    .flow-card,
    .value-card,
    .metric-card,
    .cta-card,
    .footer-card,
    .value-lead {
        border-radius: 20px;
    }

    .hero-card,
    .service-card,
    .flow-card,
    .cta-card,
    .metric-card,
    .value-lead,
    .value-card {
        padding: 20px;
    }

    .platform-core {
        width: 100%;
    }

    .platform-services {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
    }
}