@charset "UTF-8";

:root {
    --nv-900: #00142b;
    --nv-800: #001b3d;
    --nv-700: #002d59;
    --nv-600: #0a3c6e;
    --nv-500: #0069c1;
    --nv-400: #0d7ad6;

    --cy-400: #00a3e0;
    --am-400: #ffa229;

    --ink: #16202e;
    --ink-2: #4a5768;
    --ink-3: #6b7889;
    --line: #dbdee3;
    --line-dark: rgba(255, 255, 255, .16);
    --tint: #f2f3f5;
    --tint-2: #e8ecf1;
    --white: #fff;

    --f-jp: "Noto Sans JP", sans-serif;
    --f-en: var(--f-jp);
    --f-mono: var(--f-jp);

    --maxw: 1280px;
    --pad-x: 24px;
    --hdr-h: 64px;
    --sec-y: 96px;

    --grid-light:
        linear-gradient(to right, rgba(0, 45, 89, .05) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(0, 45, 89, .05) 1px, transparent 1px);
    --grid-dark:
        linear-gradient(to right, rgba(0, 163, 224, .09) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(0, 163, 224, .09) 1px, transparent 1px);
}

@media screen and (min-width: 769px) {
    :root {
        --pad-x: 48px;
        --hdr-h: 102px;
        --sec-y: 128px;
    }
}

*, *::before, *::after { box-sizing: border-box; }

/* Prevent header-related horizontal overflow. */
html, body {
    overflow-x: hidden;
    overflow-x: clip;
}

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

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

body {
    margin: 0;
    font-family: var(--f-jp);
    font-weight: 400;
    font-size: 19px;
    line-height: 1.9;
    color: var(--ink);
    background: var(--white);
}

main { display: block; padding-top: var(--hdr-h); }

img, svg { vertical-align: bottom; max-width: 100%; }
img { height: auto; }

h1, h2, h3, h4, p, ul, ol, dl, dd, figure { margin: 0; padding: 0; }
ul, ol { list-style: none; }

a { color: var(--nv-500); text-decoration: none; transition: color .2s, opacity .2s; }
a:hover, a:focus-visible { text-decoration: underline; }

:focus-visible { outline: 2px solid var(--cy-400); outline-offset: 3px; }

table { border-collapse: collapse; width: 100%; }

.ai-visually-hidden {
    position: absolute; width: 1px; height: 1px; margin: -1px;
    padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.hide-pc { display: inline; }
@media screen and (min-width: 769px) { .hide-pc { display: none; } }

.group-header, .group-footer { font-family: var(--f-jp); }
.group-header { z-index: 100; }

.group-header__layout { box-sizing: border-box; padding: 0 16px; }

@media screen and (max-width: 1080px) {
    .group-header__layout::before { width: 100%; left: 0; transform: none; }
    .group-header__body { width: 100%; }
}

.group-header__logoImg { max-width: 218px; }
@media screen and (min-width: 1081px) {
    .group-header { overflow-x: clip; }
    .group-header__logoImg { max-width: 252px; }
    .group-header__layout {
        padding: 0 var(--pad-x);
        align-items: center;
    }
    .group-header__logo { padding: 12px 0; }
}

.group-header__subContents { display: none; }

.group-header__contact {
    grid-area: subContents;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: stretch;
}
@media screen and (min-width: 1081px) {
    .group-header__contact {
        flex-direction: row;
        align-items: center;
        justify-content: flex-end;
        gap: 20px;
    }
    .group-header__gloNav .group-header__contact { display: none; }
}
@media screen and (max-width: 1080px) {
    .group-header__layout > .group-header__contact { display: none; }
}

.group-header__gloNav > ul {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
@media screen and (min-width: 1081px) {
    .group-header__gloNav::before { display: none; }
    .group-header__gloNav {
        background: var(--nv-800);
        margin: 0 calc(var(--pad-x) * -1);
        padding: 0 var(--pad-x);
    }
    .group-header__gloNav > ul {
        flex-direction: row;
        justify-content: center;
        gap: 0;
        max-width: var(--maxw);
        margin: 0 auto;
    }
}
.group-header__gloNav > ul > li > a {
    display: block;
    padding: 12px 16px;
    font-size: 16px;
    letter-spacing: .04em;
    color: var(--ink);
    text-decoration: none;
    position: relative;
}
@media screen and (min-width: 1081px) {
    .group-header__gloNav > ul > li > a {
        color: rgba(255, 255, 255, .82);
        padding: 15px 18px;
        font-size: 16px;
    }
    .group-header__gloNav > ul > li > a::after {
        content: "";
        position: absolute;
        left: 18px; right: 18px; bottom: 8px;
        height: 2px;
        background: var(--am-400);
        transform: scaleX(0);
        transform-origin: left;
        transition: transform .25s;
    }
    .group-header__gloNav > ul > li > a:hover,
    .group-header__gloNav > ul > li > a.is-current { color: var(--white); text-decoration: none; }
    .group-header__gloNav > ul > li > a:hover::after,
    .group-header__gloNav > ul > li > a.is-current::after { transform: scaleX(1); }
}

/* Keep --hdr-h aligned with the fixed header to avoid CLS. */
html:has(.group-header--onerow) { --hdr-h: 66px; }

.group-header--onerow {
    border-bottom: 0;
    box-shadow: inset 0 -1px 0 var(--line);
}

@media screen and (min-width: 1081px) {
    /* Prevent scrolling inherited from group.css in the fixed one-row header. */
    .group-header--onerow {
        height: 64px;
        max-height: none;
        overflow: clip;
    }

    .group-header--onerow .group-header__layout {
        --hdr-item-h: 40px;
        max-width: var(--maxw);
        margin: 0 auto;
        grid-template-areas: "logo gloNav subContents";
        grid-template-columns: auto minmax(0, 1fr) auto;
        column-gap: 24px;
        align-items: stretch;
        transform: translateY(-3px);
    }
    .group-header--onerow .group-header__logo {
        padding: 8px 0;
        display: flex;
        align-items: center;
    }

    .group-header--onerow .group-header__gloNav {
        display: flex;
        align-items: center;
        background: transparent;
        margin: 0;
        padding: 0;
    }
    .group-header--onerow .group-header__gloNav > ul {
        justify-content: flex-end;
        align-items: stretch;
        max-width: none;
        margin: 0;
        width: 100%;
        min-height: var(--hdr-item-h);
    }
    .group-header--onerow .group-header__gloNav > ul > li { display: flex; }
    .group-header--onerow .group-header__gloNav > ul > li > a {
        display: flex;
        align-items: center;
        color: var(--ink-2);
        font-size: 17px;
        padding: 0 14px;
        letter-spacing: .02em;
        white-space: nowrap;
    }
    .group-header--onerow .group-header__gloNav > ul > li > a::after {
        left: 14px; right: 14px; bottom: 4px;
        background: var(--nv-500);
    }
    .group-header--onerow .group-header__gloNav > ul > li > a:hover,
    .group-header--onerow .group-header__gloNav > ul > li > a.is-current { color: var(--nv-700); }

    .group-header--onerow .group-header__layout > .group-header__contact {
        justify-content: flex-end;
        align-items: center;
        gap: 16px;
        min-height: var(--hdr-item-h);
        padding: 8px 0;
    }
}

@media screen and (min-width: 1081px) and (max-width: 1199px) {
    .group-header--onerow .group-header__gloNav > ul > li > a { padding: 0 8px; }
    .group-header--onerow .group-header__gloNav > ul > li > a::after { left: 8px; right: 8px; }
}

@media screen and (max-width: 1080px) {
    .group-header--onerow .group-header__body {
        max-height: calc(100vh - 64px);
        overflow-y: auto;
    }
    .group-header--onerow .group-header__gloNav {
        background-color: transparent;
        overflow: visible;
    }
    .group-header--onerow .group-header__gloNav > ul {
        gap: 0;
        border-top: 1px solid var(--line);
    }
    .group-header--onerow .group-header__gloNav > ul > li { border-bottom: 1px solid var(--line); }
    .group-header--onerow .group-header__gloNav > ul > li > a {
        padding: 14px 0;
        font-size: 18px;
        font-weight: 700;
        line-height: 1.5;
        color: var(--nv-700);
    }
    .group-header--onerow .group-header__gloNav .group-header__contact { margin-top: 22px; }
}

.ai-inner {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 var(--pad-x);
}

.ai-section { padding: var(--sec-y) 0; position: relative; scroll-margin-top: var(--hdr-h); }

.ai-section { scroll-margin-top: calc(var(--hdr-h) + 24px - var(--sec-y)); }
@media screen and (min-width: 769px) {
    #approach { scroll-margin-top: calc(var(--hdr-h) + 24px - 84px); }
}
.ai-section--tint { background: var(--tint); }
#other-service { padding-top: 0; }
.ai-hdg { margin-bottom: 48px; }
.ai-hdg__label {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--f-en);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: .18em;
    color: var(--nv-500);
    margin-bottom: 14px;
}
.ai-hdg__label::before {
    content: "";
    width: 28px; height: 1px;
    background: var(--am-400);
    flex: 0 0 auto;
}
.ai-hdg__title {
    font-size: 30px;
    line-height: 1.5;
    font-weight: 700;
    letter-spacing: .01em;
    color: var(--nv-700);
}
.ai-hdg__lead { margin-top: 18px; color: var(--ink-2); font-size: 18px; }

@media screen and (min-width: 769px) {
    .ai-hdg__title { font-size: 34px; }
    .ai-hdg__lead { font-size: 19px; }
}

.ai-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 232px;
    padding: 15px 22px;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: .02em;
    border-radius: 2px;
    text-decoration: none;
    transition: background-color .2s, color .2s, transform .2s;
}
.ai-btn:hover { text-decoration: none; }

.ai-btn--primary { background: var(--am-400); color: var(--nv-900); }
.ai-btn--primary:hover { background: #ffb752; color: var(--nv-900); }

.ai-btn--ghost { background: transparent; color: var(--white); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .5); }
.ai-btn--ghost:hover { background: rgba(255, 255, 255, .1); color: var(--white); }

.btn > a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 11px 18px;
    background: var(--nv-700);
    color: var(--white);
    font-size: 16px;
    font-weight: 700;
    letter-spacing: .02em;
    border-radius: 2px;
    text-decoration: none;
    white-space: nowrap;
}
.btn > a:hover { background: var(--nv-600); text-decoration: none; }

.ai-breadcrumb {
    max-width: 100%;
    background-color: #f5f5f5;
}
.ai-breadcrumb__list {
    max-width: var(--maxw);
    margin: 0 auto;
    box-sizing: border-box;
    min-height: 44px;
    padding: 6px var(--pad-x);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    align-content: center;
    gap: 4px;
    list-style: none;
    font-size: 15px;
    line-height: 1.6;
    color: #000;
}
.ai-breadcrumb__item + .ai-breadcrumb__item::before {
    content: ">";
    margin-right: 4px;
    color: #000;
}
.ai-breadcrumb__item a {
    color: #0069c1;
    text-decoration: none;
}
.ai-breadcrumb__item a:hover { text-decoration: underline; }
.ai-breadcrumb__item[aria-current="page"] { color: #000; }

.ai-kv {
    position: relative;
    color: var(--white);
    overflow: hidden;
    padding: 64px 0 72px;
    background-color: var(--nv-900);
    background-image:
        linear-gradient(180deg, transparent 36%, rgba(0, 20, 43, .66) 100%),
        linear-gradient(102deg,
            rgba(0, 20, 43, .95) 0%,
            rgba(0, 20, 43, .89) 38%,
            rgba(0, 20, 43, .62) 74%,
            rgba(0, 20, 43, .46) 100%),
        linear-gradient(0deg, #0c2b4d, #0c2b4d),
        var(--kv-img, none);
    background-repeat: no-repeat;
    background-position: 50% 50%, 50% 50%, 50% 50%, 50% 42%;
    background-size: cover;
    background-blend-mode: normal, normal, color, normal;
}

@media screen and (min-width: 769px) {
    .ai-kv--hub {
        min-height: min(calc(100vh - 190px), 860px);
        padding-top: 56px;
        padding-bottom: 56px;
        display: flex;
        align-items: center;
    }
    .ai-kv--hub > .ai-kv__inner { width: 100%; }
    .ai-kv--hub + .ai-section { padding-top: 84px; }
}

/* Use JPEG by default and WebP through image-set() when supported. */
.ai-kv--hub { --kv-img: url("../img/kv_hub.jpg"); }
@supports (background-image: image-set(url("../img/kv_hub.webp") type("image/webp"))) {
    .ai-kv--hub {
        --kv-img: image-set(url("../img/kv_hub.webp") type("image/webp"),
                            url("../img/kv_hub.jpg") type("image/jpeg"));
    }
    @media screen and (max-width: 768px) {
        .ai-kv--hub {
            --kv-img: image-set(url("../img/kv_hub-1200.webp") type("image/webp"),
                                url("../img/kv_hub.jpg") type("image/jpeg"));
        }
    }
}
@media screen and (min-width: 769px) {
    .ai-kv { padding: 50px 0 104px; }
}

.ai-kv::before {
    content: "";
    position: absolute; inset: 0;
    background-image: var(--grid-dark);
    background-size: 56px 56px;
    mask-image: radial-gradient(120% 90% at 78% 12%, #000 0%, rgba(0, 0, 0, .35) 55%, transparent 85%);
    -webkit-mask-image: radial-gradient(120% 90% at 78% 12%, #000 0%, rgba(0, 0, 0, .35) 55%, transparent 85%);
    pointer-events: none;
}
.ai-kv::after {
    content: "";
    position: absolute;
    right: -12%; top: -28%;
    width: 76vw; height: 76vw;
    max-width: 900px; max-height: 900px;
    background: radial-gradient(circle, rgba(0, 105, 193, .40) 0%, rgba(0, 163, 224, .12) 42%, transparent 70%);
    pointer-events: none;
}

.ai-kv__inner { position: relative; z-index: 1; }

.ai-kv__grid { display: grid; gap: 48px; }
@media screen and (min-width: 1100px) {
    .ai-kv__grid { align-items: center; }
    .ai-kv__body { max-width: 40em; }
}

.ai-kv__line { display: block; }

.ai-kv__title { font-size: 32px; line-height: 1.34; font-weight: 700; letter-spacing: .005em; }
.ai-kv__title em {
    font-style: normal;
    color: var(--cy-400);
    background-image: linear-gradient(var(--am-400), var(--am-400));
    background-repeat: no-repeat;
    background-size: 100% 2px;
    background-position: 0 100%;
    padding-bottom: 4px;
}
@media screen and (min-width: 769px) {
    .ai-kv__title { font-size: 38px; }
}
@media screen and (min-width: 1100px) {
    .ai-kv__title { font-size: 48px; }
}

.ai-kv__lead {
    margin-top: 26px;
    font-size: 18px;
    line-height: 1.95;
    color: rgba(255, 255, 255, .8);
    max-width: 40em;
}
@media screen and (min-width: 769px) { .ai-kv__lead { font-size: 19px; } }

.ai-kv__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }

@media screen and (max-width: 600px) {
    .ai-kv__actions { flex-direction: column; align-items: stretch; gap: 12px; }
    .ai-kv__actions .ai-btn { width: 100%; min-width: 0; }
}

.ai-reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s ease, transform .7s cubic-bezier(.22, 1, .36, 1); }
.ai-reveal.is-inview { opacity: 1; transform: none; }
.ai-reveal--d1 { transition-delay: .1s; }
.ai-reveal--d2 { transition-delay: .2s; }
.ai-reveal--d3 { transition-delay: .3s; }

@media (prefers-reduced-motion: reduce) {
    .ai-reveal { opacity: 1; transform: none; transition: none; }
}

.ai-wall { border-top: 1px solid var(--nv-700); }

.ai-wall__item {
    position: relative;
    border-bottom: 1px solid var(--line);
    padding: 28px 0;
}
@media screen and (min-width: 861px) {
    .ai-wall__item {
        display: grid;
        grid-template-columns: minmax(0, 42%) minmax(0, 1fr);
        column-gap: 40px;
        align-items: stretch;
        padding: 34px 0;
    }
}

.ai-wall__voice {
    font-size: 18.5px;
    line-height: 1.85;
    font-weight: 500;
    color: var(--nv-700);
    background: var(--tint-2);
    border-radius: 18px;
    padding: 22px 26px 22px 54px;
    margin-bottom: 16px;
    position: relative;
}
@media screen and (min-width: 861px) { .ai-wall__voice { font-size: 19px; } }
.ai-wall__voice::before {
    content: "\201C";
    position: absolute;
    left: 20px;
    top: 14px;
    font-family: var(--f-en);
    font-size: 34px;
    line-height: 1;
    color: var(--am-400);
}
.ai-wall__voice::after {
    content: "";
    position: absolute;
    left: 32px;
    bottom: -15px;
    width: 26px; height: 16px;
    background: var(--tint-2);
    clip-path: polygon(0 0, 100% 0, 18% 100%);
}

.ai-wall__answer { margin-top: 24px; }
@media screen and (min-width: 861px) {
    .ai-wall__answer {
        margin-top: 0;
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
}
.ai-wall__desc {
    font-size: 17.5px;
    color: var(--ink-2);
    padding-left: 27px;
    text-indent: -27px;
}
.ai-wall__desc::before {
    content: "";
    display: inline-block;
    width: 17px; height: 11px;
    margin-right: 10px;
    background: var(--am-400);
    clip-path: polygon(0 3px, 10px 3px, 10px 0, 17px 5.5px, 10px 11px, 10px 8px, 0 8px);
}

.ai-part { margin-bottom: 24px; }
.ai-part--gap { margin-top: 72px; }
.ai-part__hdg {
    font-size: 22px;
    font-weight: 700;
    color: var(--nv-700);
    line-height: 1.5;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--line);
}
.ai-part__lead { margin-top: 14px; font-size: 17.5px; color: var(--ink-2); }

.ai-risk { display: grid; gap: 24px; }
@media screen and (min-width: 769px) { .ai-risk { grid-template-columns: repeat(3, 1fr); gap: 32px; } }

.ai-risk__item {
    display: flex;
    flex-direction: column;
    background: var(--white);
    border: 1px solid var(--line);
    padding: 24px 24px 26px;
}
.ai-risk__name {
    font-size: 20px;
    font-weight: 700;
    color: var(--nv-500);
    line-height: 1.5;
    text-align: center;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--line);
}
.ai-risk__fig { padding: 22px 0 20px; text-align: center; }
.ai-risk__fig img { width: 84px; height: 84px; }
.ai-risk__desc { font-size: 17px; color: var(--ink-2); flex: 1 1 auto; }
.ai-risk__desc em {
    font-style: normal;
    font-weight: 600;
    color: var(--nv-500);
}

.ai-whole {
    position: relative;
    display: grid;
    gap: 28px;
    background: var(--white);
    border: 1px solid var(--line);
    padding: 26px 24px;
}

@media screen and (min-width: 769px) {
    .ai-whole { padding: 32px; gap: 32px; }
}

@media screen and (min-width: 1024px) {
    .ai-whole {
        grid-template-columns: minmax(0, 1fr) 560px minmax(0, 1fr);
        grid-template-areas:
            "org  fig  rule"
            ".    proc .";
        align-items: center;
        justify-items: stretch;
        gap: 16px 24px;
        padding: 36px 32px 32px;
    }
    .ai-whole__box--org { grid-area: org; }
    .ai-whole__box--rule { grid-area: rule; }
    .ai-whole__box--process { grid-area: proc; }
    .ai-whole__fig { grid-area: fig; }

}

.ai-whole__fig { justify-self: center; width: 100%; max-width: 560px; position: relative; z-index: 2; }
.ai-whole__box { position: relative; z-index: 1; }
.ai-whole__fig svg { display: block; width: 100%; height: auto; }

.ai-whole__box {
    display: flex;
    flex-direction: column;
    border-top: 2px solid var(--nv-600);
    padding-top: 14px;
}
.ai-whole__box--rule { border-top-color: #0a3c6e; }
.ai-whole__box--process { border-top-color: #0f4d8c; }
.ai-whole__box--org { border-top-color: #002d59; }

.ai-whole__boxHdg {
    font-size: 22px;
    font-weight: 700;
    color: var(--nv-700);
    line-height: 1.4;
}
.ai-whole__boxDef {
    margin-top: 10px;
    font-size: 17.5px;
    line-height: 1.8;
    color: var(--ink-2);
    flex: 1 1 auto;
}

.ai-whole__out {
    margin-top: 16px;
    background: var(--tint);
    padding: 16px 18px;
}
.ai-whole__out li {
    position: relative;
    padding-left: 15px;
    font-size: 17px;
    line-height: 1.8;
    color: var(--nv-700);
}
.ai-whole__out li::before {
    content: "";
    position: absolute;
    left: 0; top: .76em;
    width: 5px; height: 1px;
    background: var(--nv-500);
}

.ai-whole__legend {
    display: flex;
    align-items: center;
    gap: 6px;
}
.ai-whole__legendLabel { font-size: 17px; color: var(--ink-2); }
.ai-whole__legendSample {
    font-size: 16px;
    font-weight: 600;
    color: var(--nv-700);
    background: var(--tint);
    padding: 8px 14px;
}
@media screen and (min-width: 961px) {
    .ai-whole__legend {
        position: absolute;
        top: 18px; right: 20px;
        margin: 0;
    }
}

.ai-group { margin-bottom: 24px; }
.ai-group + .ai-svc { margin-bottom: 56px; }
.ai-group__bar {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 6px 16px;
    padding: 14px 0 16px;
    border-top: 1px solid var(--nv-700);
}
.ai-group__en {
    font-family: var(--f-en);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: .14em;
    color: var(--nv-500);
}

.ai-group__name { font-size: 22px; font-weight: 700; color: var(--nv-700); line-height: 1.4; }
.ai-group__desc { width: 100%; font-size: 17px; color: var(--ink-2); margin-top: 4px; }

.ai-group--main .ai-group__bar { border-top-width: 2px; }

.ai-svc { display: grid; gap: 20px; }
@media screen and (min-width: 721px) {
    .ai-svc { grid-template-columns: repeat(2, 1fr); gap: 28px; }
}

@media screen and (min-width: 721px) {
    .ai-svc--one { grid-template-columns: 1fr; }
}
@media screen and (min-width: 861px) {
    .ai-svc--one .ai-svc__card { display: grid; grid-template-columns: minmax(240px, 30%) minmax(0, 1fr); }
    .ai-svc--one .ai-svc__head { display: flex; flex-direction: column; justify-content: center; padding-right: 62px; }
    .ai-svc--one .ai-svc__glyph { right: 16px; bottom: 14px; }
}

.ai-svc__card {
    display: flex;
    flex-direction: column;
    background: var(--white);
    border: 1px solid var(--line);
    transition: border-color .25s, transform .25s, box-shadow .25s;
}
.ai-svc__card { scroll-margin-top: calc(var(--hdr-h) + 20px); }

.ai-svc__head {
    position: relative;
    background: var(--nv-800);
    background-image: var(--grid-dark);
    background-size: 24px 24px;
    padding: 20px 22px 18px;
    overflow: hidden;
}
.ai-svc__no {
    font-family: var(--f-mono);
    font-size: 13px;
    letter-spacing: .14em;
    color: var(--cy-400);
    display: block;
    margin-bottom: 10px;
}
.ai-svc__title {
    font-size: 21px;
    line-height: 1.5;
    min-height: calc(1.5em * 2);
    font-weight: 700;
    color: var(--white);
}
.ai-svc__glyph {
    position: absolute;
    right: 14px; bottom: 10px;
    width: 62px; height: 62px;
    opacity: .5;
    pointer-events: none;
}
.ai-svc__glyph svg { width: 100%; height: 100%; }

.ai-svc__body { padding: 22px; display: flex; flex-direction: column; flex: 1 1 auto; }
.ai-svc__tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.ai-svc__tags span {
    font-size: 13px;
    letter-spacing: .02em;
    color: var(--nv-600);
    background: var(--tint);
    border: 1px solid var(--tint-2);
    border-radius: 2px;
    padding: 4px 8px;
}
.ai-svc__desc { font-size: 17px; color: var(--ink-2); flex: 1 1 auto; }
.ai-svc__for {
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px dashed var(--line);
    font-size: 15.5px;
    color: var(--ink-3);
}
.ai-svc__for b { color: var(--nv-600); font-weight: 600; }

.ai-band {
    margin-top: 28px;
    padding: 30px 28px;
    background: var(--nv-800);
    background-image: var(--grid-dark);
    background-size: 28px 28px;
    display: grid;
    justify-items: center;
    text-align: center;
    gap: 24px;
}
@media screen and (min-width: 861px) {
    .ai-band { padding: 34px; gap: 26px; }
}
.ai-band__body { min-width: 0; }
.ai-band__label {
    font-family: var(--f-mono);
    font-size: 13px;
    letter-spacing: .16em;
    color: var(--cy-400);
    margin-bottom: 10px;
}
.ai-band__title { font-size: 23px; font-weight: 700; color: var(--white); line-height: 1.55; }
@media screen and (min-width: 861px) { .ai-band__title { font-size: 27px; } }
.ai-band__action { text-align: center; }

.ai-strength { display: grid; gap: 1px; background: var(--line-dark); }
@media screen and (min-width: 721px) { .ai-strength { grid-template-columns: repeat(2, 1fr); } }
@media screen and (min-width: 1025px) { .ai-strength { grid-template-columns: repeat(3, 1fr); } }

.ai-strength__item {
    background: var(--nv-800);
    padding: 30px 26px 28px;
    position: relative;
}
.ai-strength__no {
    font-family: var(--f-mono);
    font-size: 34px;
    font-weight: 600;
    line-height: 1;
    color: rgba(0, 163, 224, .32);
    display: block;
    margin-bottom: 16px;
}
.ai-strength__title {
    font-size: 20.5px;
    line-height: 1.55;
    min-height: calc(1.55em * 2);
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
}
.ai-strength__desc { font-size: 17px; color: rgba(255, 255, 255, .72); }

/* 18. お問い合わせ */
.ai-contact {
    background: var(--nv-800);
    background-image: var(--grid-dark);
    background-size: 48px 48px;
    color: var(--white);
    padding: var(--sec-y) 0;
    position: relative;
    overflow: hidden;
}
.ai-contact::after {
    content: "";
    position: absolute;
    left: -10%; bottom: -50%;
    width: 60vw; height: 60vw;
    max-width: 700px; max-height: 700px;
    background: radial-gradient(circle, rgba(0, 105, 193, .34) 0%, transparent 68%);
    pointer-events: none;
}
.ai-contact__inner { position: relative; z-index: 1; }
.ai-contact__lead { margin-top: 20px; font-size: 18px; color: rgba(255, 255, 255, .8); }

.ai-contact__action { margin-top: 36px; text-align: center; }
@media screen and (min-width: 861px) {
    .ai-contact__inner {
        display: grid;
        grid-template-columns: minmax(0, 640px) auto;
        column-gap: 32px;
        justify-content: start;
        align-items: end;
    }
    .ai-contact__action { margin-top: 0; }
}

/* 18-1. 全幅の写真帯（.ai-photo） */
.ai-photo {
    position: relative;
    overflow: hidden;
    background: var(--nv-900);
    height: 200px;
}
@media screen and (min-width: 769px) {
    .ai-photo { height: 280px; }
}
/* Give picture and img height:100% in this fixed-height photo strip. */
.ai-photo picture,
.ai-photo img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}
.ai-photo::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(0, 26, 51, .82) 0%, rgba(0, 26, 51, .62) 55%, rgba(0, 26, 51, .1) 88%);
    pointer-events: none;
}
.ai-photo__copy {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    z-index: 1;
}
.ai-photo__inner {
    width: 100%;
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 var(--pad-x);
}
.ai-photo__label {
    font-family: var(--f-mono);
    font-size: 13px;
    letter-spacing: .16em;
    color: var(--cy-400);
    margin-bottom: 10px;
}
.ai-photo__text {
    color: var(--white);
    font-size: 18px;
    font-weight: 700;
    line-height: 1.55;
    max-width: 100%;
    overflow-wrap: anywhere;
}
@media screen and (min-width: 769px) {
    .ai-photo__text {
        font-size: 27px;
        line-height: 1.65;
        max-width: 38em;
    }
}

/* 18-2. コラム・レポートのカルーセル（.ai-crs / .ai-post） */
.ai-crs {
    --crs-cols: 1.1;
    --crs-gap: 16px;
    position: relative;
}
@media screen and (min-width: 641px) {
    .ai-crs { --crs-cols: 2; --crs-gap: 20px; }
}
@media screen and (min-width: 961px) {
    .ai-crs { --crs-cols: 3; --crs-gap: 24px; }
}

.ai-crs__viewport {
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    padding: 4px 0;
    scrollbar-width: none;
}
.ai-crs__viewport::-webkit-scrollbar { display: none; }
.ai-crs__viewport:focus-visible { outline: 2px solid var(--nv-500); outline-offset: 2px; }

.ai-crs__track {
    display: flex;
    gap: var(--crs-gap);
    list-style: none;
}
.ai-crs__item {
    flex: 0 0 calc((100% - var(--crs-gap) * (var(--crs-cols) - 1)) / var(--crs-cols));
    scroll-snap-align: start;
    display: flex;
}

.ai-post {
    display: flex;
    flex-direction: column;
    width: 100%;
    background: var(--white);
    border: 1px solid var(--line);
    padding: 24px 22px;
    text-decoration: none;
    transition: border-color .25s, transform .25s, box-shadow .25s;
}
.ai-post:hover {
    border-color: var(--nv-500);
    transform: translateY(-3px);
    box-shadow: 0 10px 24px rgba(0, 45, 89, .08);
    text-decoration: none;
}
.ai-post__meta { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.ai-post__cat {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .04em;
    color: var(--nv-500);
    border: 1px solid rgba(0, 105, 193, .35);
    padding: 3px 8px;
}
.ai-post__date { font-family: var(--f-mono); font-size: 15px; color: var(--ink-3); }
.ai-post__title { font-size: 19.5px; font-weight: 700; line-height: 1.6; color: var(--nv-700); }
.ai-post__desc {
    margin-top: 12px;
    font-size: 16.5px;
    color: var(--ink-2);
    flex: 1 1 auto;
}
.ai-post__more {
    margin-top: 18px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    font-weight: 700;
    color: var(--nv-500);
}
.ai-post__more::after {
    content: "";
    width: 9px; height: 9px;
    border-top: 2px solid currentColor;
    border-right: 2px solid currentColor;
    transform: rotate(45deg);
    transition: transform .2s;
}
.ai-post:hover .ai-post__more::after { transform: rotate(45deg) translate(2px, -2px); }

.ai-crs__nav {
    margin-top: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}
.ai-crs__all a {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 17px;
    font-weight: 700;
    color: var(--nv-600);
    text-decoration: none;
}
.ai-crs__all a::after {
    content: "";
    width: 9px; height: 9px;
    border-top: 2px solid currentColor;
    border-right: 2px solid currentColor;
    transform: rotate(45deg);
}
.ai-crs__all a:hover { color: var(--nv-500); text-decoration: underline; }
.ai-crs__btns { display: flex; gap: 10px; }
.ai-crs__btn {
    position: relative;
    width: 44px; height: 44px;
    background: var(--white);
    border: 1px solid var(--line);
    cursor: pointer;
    transition: border-color .2s, background-color .2s, opacity .2s;
}
.ai-crs__btn:hover:not(:disabled) { border-color: var(--nv-500); }
.ai-crs__btn:disabled { opacity: .3; cursor: default; }
.ai-crs__btn::before {
    content: "";
    position: absolute;
    inset: 0;
    margin: auto;
    width: 9px; height: 9px;
    border-top: 2px solid var(--nv-600);
    border-right: 2px solid var(--nv-600);
}
.ai-crs__btn--prev::before { transform: rotate(-135deg); }
.ai-crs__btn--next::before { transform: rotate(45deg); }

@media (prefers-reduced-motion: reduce) {
    .ai-crs__viewport { scroll-behavior: auto; }
    .ai-post:hover { transform: none; }
}

/* 18-3. ページトップへ戻るボタン（.btn-top） */
.btn-top { position: relative; }

.btn-top > a {
    display: block;
    z-index: 10;
    position: absolute;
    top: -54px;
    right: 10px;
    width: 44px;
    height: 44px;
    background: rgba(0, 0, 0, 0.6);
    color: transparent;
    font-size: 1px;
    transition: top .2s, background-color .2s;
}
.btn-top > a::before,
.btn-top > a::after {
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    width: 4px;
    height: 18px;
    margin-top: -9px;
    border-radius: 4px;
    background: var(--white);
    content: "";
}
.btn-top > a::before { margin-left: -5px; transform: rotate(28deg); }
.btn-top > a::after { margin-left: 2px; transform: rotate(-28deg); }

.btn-top > a:hover,
.btn-top > a:active,
.btn-top > a:focus {
    top: -57px;
    opacity: 1;
}
.btn-top > a:focus-visible { outline: 2px solid var(--cy-400); outline-offset: 2px; }

@media (prefers-reduced-motion: reduce) {
    .btn-top > a { transition: none; }
    .btn-top > a:hover, .btn-top > a:active, .btn-top > a:focus { top: -54px; }
}

/* 19. ページトップへ戻る */
.ai-back { background: var(--tint); border-top: 1px solid var(--line); }
.ai-back__inner { max-width: var(--maxw); margin: 0 auto; padding: 20px var(--pad-x); }
.ai-back a { font-size: 17px; color: var(--nv-600); display: inline-flex; align-items: center; gap: 10px; }
.ai-back a::before {
    content: "";
    width: 7px; height: 7px;
    border-top: 2px solid currentColor;
    border-right: 2px solid currentColor;
    transform: rotate(45deg);
    margin-left: 1px;
}

/* 20. 追補 */
.ai-svc__card { position: relative; }
.ai-contact .ai-hdg__label { color: var(--cy-400); }
.ai-contact .ai-hdg__title { color: var(--white); }
.ai-contact .ai-hdg { margin-bottom: 0; }

.ai-kv__lead strong { color: var(--white); font-weight: 700; }

@media print {
    .group-header, .ai-back, .ai-contact::after, .ai-kv::before, .ai-kv::after { display: none !important; }
    .ai-section, .ai-kv, .ai-contact { padding: 24px 0 !important; background: #fff !important; color: #000 !important; }
}

/* 21. 抜けていた定義の補い */
.ai-kv__body { min-width: 0; }