.ina-public-idea {
    width: min(80vw, 1120px);
    margin: 0 auto;
    padding: clamp(2rem, 5vw, 5rem) 0 clamp(4rem, 8vw, 8rem);
    color: #1e2430;
    font-family: YakuHanJP, "Zen Kaku Gothic New", "Noto Sans JP", sans-serif;
    line-height: 1.9;
    overflow-wrap: anywhere;
}

.ina-public-idea__crumbs {
    display: flex;
    flex-wrap: wrap;
    gap: .45rem;
    align-items: center;
    margin: 0 0 clamp(2.4rem, 5vw, 4.8rem);
    color: #8b97a8;
    font-size: clamp(.68rem, .62rem + .16vw, .8rem);
    letter-spacing: .04em;
}

.ina-public-idea__crumbs a {
    color: inherit;
    text-decoration: none;
    transition: color .2s ease;
}

.ina-public-idea__crumbs a:hover,
.ina-public-idea__crumbs a:focus-visible {
    color: #2479ae;
}

.ina-public-idea__head {
    max-width: 840px;
    margin: 0 auto clamp(2.4rem, 5vw, 4.8rem);
}

.ina-public-idea__eyebrow,
.ina-public-idea__label {
    margin: 0;
    color: #2479ae;
    font-family: Manrope, YakuHanJP, sans-serif;
    font-size: clamp(.68rem, .62rem + .18vw, .82rem);
    font-weight: 800;
    letter-spacing: .12em;
    line-height: 1.4;
}

.ina-public-idea__id {
    margin: clamp(1.1rem, 2vw, 1.7rem) 0 .7rem;
    color: #96a3b4;
    font-family: Manrope, sans-serif;
    font-size: clamp(.72rem, .66rem + .18vw, .86rem);
    font-weight: 700;
    letter-spacing: .12em;
}

.ina-public-idea h1 {
    max-width: 900px;
    margin: 0;
    color: #1e2430;
    font-size: clamp(1.45rem, 1.1rem + 1.5vw, 2.55rem);
    font-weight: 700;
    letter-spacing: .01em;
    line-height: 1.6;
}

.ina-public-idea__company {
    margin: 1rem 0 0;
    color: #657286;
    font-size: clamp(.86rem, .8rem + .25vw, 1.02rem);
    font-weight: 500;
}

.ina-public-idea__hero {
    position: relative;
    display: flex;
    min-height: clamp(240px, 29vw, 390px);
    margin: 0 auto clamp(3.4rem, 7vw, 6rem);
    padding: clamp(2rem, 5vw, 4.8rem);
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
    border-radius: clamp(16px, 2vw, 24px);
    background:
        radial-gradient(circle at 84% 20%, rgba(255,255,255,.5), transparent 30%),
        linear-gradient(135deg, #e6edff 0%, #c5d8fb 46%, #9acbe2 100%);
    box-shadow: 0 18px 42px rgba(30, 77, 125, .12);
}

.ina-public-idea__hero::after {
    position: absolute;
    right: 7%;
    bottom: -35%;
    width: clamp(170px, 24vw, 300px);
    height: clamp(170px, 24vw, 300px);
    border: 1px solid rgba(255,255,255,.58);
    border-radius: 50%;
    content: "";
}

.ina-public-idea__hero-kicker,
.ina-public-idea__hero-mark {
    position: relative;
    z-index: 1;
    color: rgba(30, 36, 48, .66);
    font-family: Manrope, sans-serif;
    font-size: clamp(.68rem, .62rem + .18vw, .84rem);
    font-weight: 800;
    letter-spacing: .14em;
}

.ina-public-idea__hero strong {
    position: relative;
    z-index: 1;
    display: block;
    max-width: 620px;
    color: #1e2430;
    font-size: clamp(1.7rem, 1.15rem + 2vw, 3.2rem);
    font-weight: 800;
    letter-spacing: .025em;
    line-height: 1.45;
}

.ina-public-idea__hero-mark {
    align-self: flex-end;
    color: rgba(30, 36, 48, .82);
    font-size: clamp(.86rem, .72rem + .35vw, 1.15rem);
}

.ina-public-idea__body {
    max-width: 760px;
    margin: 0 auto;
}

.ina-public-idea__section h2 {
    margin: .7rem 0 clamp(1.4rem, 3vw, 2.2rem);
    color: #1e2430;
    font-size: clamp(1.22rem, 1rem + .7vw, 1.7rem);
    font-weight: 700;
    line-height: 1.6;
}

.ina-public-idea__summary {
    margin: 0;
    color: #3f4b5c;
    font-size: clamp(.94rem, .86rem + .28vw, 1.08rem);
    font-weight: 500;
    letter-spacing: .01em;
    line-height: 2.25;
}

.ina-public-idea__facts {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    margin: clamp(2.8rem, 6vw, 5rem) 0 0;
    border-top: 1px solid #dce2e9;
    border-bottom: 1px solid #dce2e9;
}

.ina-public-idea__facts div {
    min-width: 0;
    padding: clamp(1.2rem, 2.4vw, 2rem) clamp(1rem, 2vw, 1.7rem);
}

.ina-public-idea__facts div + div {
    border-left: 1px solid #dce2e9;
}

.ina-public-idea__facts dt {
    margin: 0 0 .45rem;
    color: #8793a4;
    font-size: clamp(.7rem, .65rem + .15vw, .8rem);
    font-weight: 700;
    letter-spacing: .08em;
}

.ina-public-idea__facts dd {
    margin: 0;
    color: #1e2430;
    font-size: clamp(.86rem, .8rem + .25vw, 1rem);
    font-weight: 600;
    line-height: 1.65;
}

.ina-public-idea__links {
    margin-top: clamp(2.8rem, 6vw, 5rem);
}

.ina-public-idea__link-list {
    display: grid;
    gap: .8rem;
    margin-top: 1rem;
}

.ina-public-idea__link-list a,
.ina-public-idea__back {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: 52px;
    padding: .7rem 1.1rem;
    border: 1px solid #d4dce6;
    border-radius: 8px;
    color: #2479ae;
    font-size: clamp(.82rem, .76rem + .2vw, .94rem);
    font-weight: 600;
    line-height: 1.5;
    text-decoration: none;
    transition: border-color .2s ease, background-color .2s ease, transform .2s ease;
}

.ina-public-idea__link-list a:hover,
.ina-public-idea__link-list a:focus-visible,
.ina-public-idea__back:hover,
.ina-public-idea__back:focus-visible {
    border-color: #2479ae;
    background: #f3f8fc;
    transform: translateY(-2px);
}

.ina-public-idea__note {
    margin: clamp(2.8rem, 6vw, 5rem) 0 0;
    color: #8793a4;
    font-size: clamp(.76rem, .7rem + .18vw, .86rem);
    line-height: 1.9;
}

.ina-public-idea__back {
    justify-content: center;
    width: fit-content;
    margin-top: clamp(2rem, 4vw, 3.2rem);
    border-color: #1e2430;
    color: #1e2430;
}

@media (max-width: 767px) {
    .ina-public-idea {
        width: auto;
        padding-right: 18px;
        padding-left: 18px;
    }

    .ina-public-idea__crumbs {
        margin-bottom: 2.4rem;
    }

    .ina-public-idea__hero {
        min-height: 250px;
        padding: 1.7rem;
    }

    .ina-public-idea__hero strong {
        font-size: clamp(1.55rem, 7vw, 2.1rem);
    }

    .ina-public-idea__facts {
        display: block;
    }

    .ina-public-idea__facts div + div {
        border-top: 1px solid #dce2e9;
        border-left: 0;
    }

    .ina-public-idea__back {
        width: 100%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .ina-public-idea__crumbs a,
    .ina-public-idea__link-list a,
    .ina-public-idea__back {
        transition: none;
    }
}