/**
 * Shared external collaboration/support band.
 * Source of visual truth: adopted home/external-collaboration V33.
 * Data/module: content/collections/externalCollaboration.json
 *              apps/view/module/external_collaboration.php
 */

.c-external-collaboration {
    --sq-navy: var(--navy, #17315f);
    --sq-deep: var(--navy-deep, #102543);
    --sq-gold: var(--gold, #b9872f);
    --sq-serif: var(--font-serif, "Yu Mincho", "Hiragino Mincho ProN", serif);
    box-sizing: border-box;
    position: relative;
    isolation: isolate;
    padding: clamp(50px, 4.5vw, 66px) 0 clamp(46px, 4vw, 60px);
    overflow: hidden;
    color: #263a58;
    background:
      radial-gradient(circle at 8% 16%, rgba(166, 202, 216, .14), transparent 23%),
      radial-gradient(circle at 91% 82%, rgba(204, 171, 100, .09), transparent 25%),
      #f8f5ee;
  }

  .c-external-collaboration *,
  .c-external-collaboration *::before,
  .c-external-collaboration *::after {
    box-sizing: inherit;
  }

  .c-external-collaboration::before {
    position: absolute;
    inset: 0;
    z-index: -1;
    content: "";
    pointer-events: none;
    background-image:
      linear-gradient(rgba(23, 49, 95, .024) 1px, transparent 1px),
      linear-gradient(90deg, rgba(23, 49, 95, .024) 1px, transparent 1px);
    background-size: 72px 72px;
    mask-image: linear-gradient(90deg, transparent, #000 16%, #000 84%, transparent);
  }

  .c-external-collaboration__inner {
    width: min(1240px, calc(100% - 48px));
    margin: 0 auto;
  }

  .c-external-collaboration__head {
    display: grid;
    grid-template-columns: minmax(410px, .95fr) minmax(440px, 1.05fr);
    gap: clamp(34px, 5vw, 70px);
    align-items: end;
    margin-bottom: 22px;
  }

  .c-external-collaboration__eyebrow {
    display: flex;
    gap: 11px;
    align-items: center;
    margin: 0 0 8px;
    color: #7c6d56;
    font-family: Arial, sans-serif;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .17em;
  }

  .c-external-collaboration__eyebrow::before {
    width: 30px;
    height: 1px;
    content: "";
    background: var(--sq-gold);
  }

  .c-external-collaboration__eyebrow span {
    color: var(--sq-gold);
    letter-spacing: .05em;
  }

  .c-external-collaboration__head h2 {
    margin: 0;
    color: var(--sq-navy);
    font-family: var(--sq-serif);
    font-size: clamp(28px, 2.45vw, 37px);
    font-weight: 600;
    line-height: 1.38;
    letter-spacing: .035em;
  }

  .c-external-collaboration__head-side > p {
    margin: 0 0 4px;
    padding-left: 20px;
    border-left: 1px solid rgba(185, 135, 47, .72);
    color: #637084;
    font-size: clamp(12px, 1.05vw, 14px);
    line-height: 1.85;
  }

  .c-external-collaboration__grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .c-external-collaboration__card {
    position: relative;
    min-width: 0;
    aspect-ratio: 1 / 1.02;
    overflow: hidden;
    border: 1px solid rgba(23, 49, 95, .15);
    background: #fffefa;
    box-shadow: 0 12px 28px rgba(16, 37, 67, .055);
  }

  .c-external-collaboration__card > a {
    position: relative;
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    color: inherit;
    text-decoration: none;
    cursor: pointer;
    transition: transform .22s ease, box-shadow .22s ease;
  }

  .c-external-collaboration__card:hover {
    z-index: 2;
    box-shadow: 0 18px 34px rgba(16, 37, 67, .1);
    transform: translateY(-3px);
  }

  .c-external-collaboration__card > a:focus-visible {
    outline: 3px solid var(--sq-gold);
    outline-offset: -5px;
  }

  .c-external-collaboration__external {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 5;
    display: grid;
    place-items: center;
    width: 27px;
    height: 27px;
    border: 1px solid rgba(185, 135, 47, .4);
    border-radius: 50%;
    color: var(--sq-gold);
    background: rgba(255, 254, 250, .88);
    font-size: 13px;
    transition: color .2s ease, background-color .2s ease, transform .2s ease;
  }

  .c-external-collaboration__card:hover .c-external-collaboration__external {
    color: #fff;
    background: var(--sq-gold);
    transform: translate(1px, -1px);
  }

  /* 01: 認定支援機関 — 淡い経営支援の案内紙 */
  .c-external-collaboration__card--support > a {
    padding: 23px 20px 18px;
    background:
      linear-gradient(152deg, rgba(255, 255, 255, .22) 0 39%, transparent 39%),
      #d9e8f1;
  }

  .c-external-collaboration__card--support::after {
    position: absolute;
    right: -31px;
    bottom: 73px;
    width: 112px;
    height: 112px;
    border: 1px solid rgba(23, 49, 95, .08);
    border-radius: 50%;
    content: "";
    pointer-events: none;
  }

  .c-external-collaboration__support-kicker {
    padding-right: 35px;
    color: var(--sq-navy);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .03em;
  }

  .c-external-collaboration__support-title {
    margin-top: 13px;
    color: var(--sq-navy);
    font-family: var(--sq-serif);
    font-size: clamp(21px, 1.85vw, 27px);
    font-weight: 600;
    line-height: 1.38;
    letter-spacing: .025em;
  }

  .c-external-collaboration__support-note {
    display: flex;
    flex-direction: column;
    gap: 5px;
    margin-top: auto;
    padding: 11px 12px;
    background: rgba(255, 255, 255, .78);
    box-shadow: 0 5px 15px rgba(23, 49, 95, .045);
  }

  .c-external-collaboration__support-note b {
    color: var(--sq-navy);
    font-size: 10px;
  }

  .c-external-collaboration__support-note span {
    color: #53657a;
    font-size: 11px;
    line-height: 1.55;
  }

  /* 02: 診断認証 — 申請帯と制度名を中心に据える */
  .c-external-collaboration__card--diagnosis > a {
    background:
      repeating-linear-gradient(90deg, rgba(23, 49, 95, .018) 0 1px, transparent 1px 8px),
      #fffefb;
  }

  .c-external-collaboration__diagnosis-ribbon {
    display: flex;
    align-items: center;
    min-height: 50px;
    padding: 11px 47px 11px 18px;
    color: #fff;
    background: #d7901e;
    font-size: 11px;
    font-weight: 800;
    line-height: 1.35;
  }

  .c-external-collaboration__card--diagnosis .c-external-collaboration__external {
    color: #fff;
    border-color: rgba(255, 255, 255, .55);
    background: rgba(255, 255, 255, .12);
  }

  .c-external-collaboration__diagnosis-body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    flex: 1;
    padding: 18px 20px 12px;
  }

  .c-external-collaboration__diagnosis-body small {
    color: #596579;
    font-size: 10px;
    line-height: 1.5;
  }

  .c-external-collaboration__diagnosis-body strong {
    margin-top: 9px;
    color: var(--sq-navy);
    font-family: var(--sq-serif);
    font-size: clamp(27px, 2.25vw, 34px);
    font-weight: 700;
    line-height: 1.18;
    letter-spacing: .02em;
  }

  .c-external-collaboration__diagnosis-foot {
    display: grid;
    grid-template-columns: 38px 1fr;
    gap: 10px;
    align-items: center;
    margin: 0 20px 18px;
    padding-top: 11px;
    border-top: 1px solid rgba(23, 49, 95, .13);
  }

  .c-external-collaboration__diagnosis-foot i {
    position: relative;
    width: 34px;
    height: 34px;
    border: 1px solid rgba(215, 144, 30, .45);
    border-radius: 50%;
  }

  .c-external-collaboration__diagnosis-foot i::before,
  .c-external-collaboration__diagnosis-foot i::after {
    position: absolute;
    content: "";
    background: #d7901e;
  }

  .c-external-collaboration__diagnosis-foot i::before {
    top: 16px;
    left: 8px;
    width: 18px;
    height: 1px;
  }

  .c-external-collaboration__diagnosis-foot i::after {
    top: 10px;
    left: 16px;
    width: 1px;
    height: 13px;
  }

  .c-external-collaboration__diagnosis-foot b {
    color: #516077;
    font-size: 11px;
    line-height: 1.5;
  }

  /* 03: 人事パック — 元バナーの上帯・中央名・下帯を縦に再構成 */
  .c-external-collaboration__card--jinjipack > a {
    background:
      linear-gradient(174deg, transparent 0 71%, rgba(255, 207, 72, .24) 71% 74%, transparent 74%),
      #fffefb;
  }

  .c-external-collaboration__jinji-top {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 9px;
    align-items: center;
    min-height: 75px;
    padding: 12px 44px 12px 14px;
    color: #fff;
    background: var(--sq-navy);
  }

  .c-external-collaboration__jinji-days {
    display: flex;
    align-items: baseline;
    white-space: nowrap;
  }

  .c-external-collaboration__jinji-days small {
    font-size: 8px;
  }

  .c-external-collaboration__jinji-days b {
    margin: 0 2px;
    font-family: Georgia, serif;
    font-size: 31px;
    font-weight: 500;
    line-height: 1;
  }

  .c-external-collaboration__jinji-top > strong {
    color: #ffd34f;
    font-size: 11px;
    line-height: 1.42;
  }

  .c-external-collaboration__card--jinjipack .c-external-collaboration__external {
    color: #fff;
    border-color: rgba(255, 255, 255, .55);
    background: rgba(255, 255, 255, .08);
  }

  .c-external-collaboration__jinji-main {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    flex: 1;
    padding: 15px 18px 11px;
    text-align: center;
  }

  .c-external-collaboration__jinji-main small {
    color: #6a7180;
    font-size: 10px;
    letter-spacing: .04em;
  }

  .c-external-collaboration__jinji-main strong {
    position: relative;
    z-index: 0;
    margin-top: 11px;
    color: #111;
    font-family: var(--sq-serif);
    font-size: clamp(33px, 2.7vw, 41px);
    font-weight: 700;
    line-height: 1.08;
  }

  .c-external-collaboration__jinji-main strong::after {
    position: absolute;
    right: -8px;
    bottom: 0;
    left: -8px;
    z-index: -1;
    height: 10px;
    content: "";
    background: #ffcf48;
    transform: rotate(-1deg);
  }

  .c-external-collaboration__jinji-foot {
    padding: 11px 18px;
    color: #fff;
    background: var(--sq-navy);
    font-size: 11px;
    font-weight: 800;
    text-align: center;
  }

  /* 04: ヨクスル — ロゴ面と情報面を上下で分ける */
  .c-external-collaboration__card--yokusuru > a {
    background: #fffefb;
  }

  .c-external-collaboration__yokusuru-brand {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 112px;
    padding: 18px 46px 15px 20px;
    color: #fff;
    background:
      radial-gradient(circle at 20% 15%, rgba(255, 255, 255, .11), transparent 24%),
      #2e477e;
  }

  .c-external-collaboration__yokusuru-brand small {
    margin-bottom: 11px;
    font-size: 9px;
    letter-spacing: .08em;
  }

  .c-external-collaboration__yokusuru-brand img {
    width: min(150px, 88%);
    max-height: 34px;
    object-fit: contain;
  }

  .c-external-collaboration__card--yokusuru .c-external-collaboration__external {
    color: #fff;
    border-color: rgba(255, 255, 255, .55);
    background: rgba(255, 255, 255, .08);
  }

  .c-external-collaboration__yokusuru-copy {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 17px 19px 11px;
  }

  .c-external-collaboration__yokusuru-copy strong {
    color: var(--sq-navy);
    font-family: var(--sq-serif);
    font-size: clamp(20px, 1.65vw, 25px);
    font-weight: 600;
    line-height: 1.38;
  }

  .c-external-collaboration__yokusuru-copy > span {
    margin-top: 9px;
    color: #59687c;
    font-size: 11px;
    line-height: 1.55;
  }

  .c-external-collaboration__yokusuru-tag {
    align-self: flex-start;
    margin: auto 19px 16px;
    padding: 5px 9px;
    color: #477861;
    background: rgba(126, 170, 145, .14);
    font-size: 10px;
    font-weight: 800;
    letter-spacing: .04em;
  }

  .c-external-collaboration__chatwork {
    width: min(336px, 100%);
    margin: 18px auto 0;
    padding: 7px;
    border-radius: 6px;
    background: #ef354d;
    box-shadow: 0 13px 28px rgba(16, 37, 67, .08);
  }

  .c-external-collaboration__chatwork-inner {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    padding: 11px 13px 12px;
    border-radius: 3px;
    background: #fff;
  }

  .c-external-collaboration__chatwork p {
    margin: 0;
    color: #a65d69;
    font-family: Arial, sans-serif;
    font-size: 8px;
    font-weight: 800;
    letter-spacing: .14em;
    text-align: center;
  }

  .c-external-collaboration__chatwork h3 {
    margin: 7px 0 8px;
    color: #171717;
    font-family: var(--sq-serif);
    font-size: 15px;
    font-weight: 700;
    line-height: 1.45;
    text-align: center;
  }

  .c-external-collaboration__chatwork-logo {
    display: grid;
    place-items: center;
    min-height: 44px;
    padding: 5px 10px;
  }

  .c-external-collaboration__chatwork-logo img {
    width: min(176px, 92%);
    max-height: 36px;
    object-fit: contain;
  }

  .c-external-collaboration__chatwork a {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 7px;
    padding: 9px 12px;
    border-radius: 999px;
    color: #fff;
    background: #ef354d;
    box-shadow: 0 4px 0 var(--sq-navy);
    font-size: 12.5px;
    font-weight: 800;
    text-decoration: none;
    transition: transform .2s ease, box-shadow .2s ease;
  }

  .c-external-collaboration__chatwork a:hover {
    box-shadow: 0 5px 0 var(--sq-navy);
    transform: translateY(-1px);
  }

  .c-external-collaboration__chatwork a:focus-visible {
    outline: 2px solid var(--sq-navy);
    outline-offset: 3px;
  }

  .c-external-collaboration__note {
    margin: 11px 0 0;
    color: #7e8796;
    font-size: 10px;
    line-height: 1.6;
    text-align: center;
  }

  .c-external-collaboration__sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }

  @media (max-width: 1080px) {
    .c-external-collaboration__head {
      grid-template-columns: 1fr;
      gap: 14px;
    }

    .c-external-collaboration__grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 14px;
    }

    .c-external-collaboration__card {
      min-height: 310px;
      aspect-ratio: auto;
    }

    .c-external-collaboration__support-title {
      font-size: clamp(25px, 3vw, 32px);
    }

    .c-external-collaboration__diagnosis-body strong {
      font-size: clamp(31px, 3.7vw, 39px);
    }

    .c-external-collaboration__jinji-main strong {
      font-size: clamp(38px, 4.5vw, 46px);
    }

    .c-external-collaboration__yokusuru-copy strong {
      font-size: clamp(24px, 3vw, 30px);
    }
  }

  @media (max-width: 680px) {
    .c-external-collaboration {
      padding: 42px 0;
    }

    .c-external-collaboration__inner {
      width: min(100% - 24px, 520px);
    }

    .c-external-collaboration__head {
      margin-bottom: 16px;
    }

    .c-external-collaboration__head h2 {
      font-size: clamp(26px, 7.5vw, 32px);
      line-height: 1.4;
    }

    .c-external-collaboration__head-side > p {
      padding-left: 12px;
      font-size: 12px;
      line-height: 1.72;
    }

    .c-external-collaboration__grid {
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 9px;
    }

    .c-external-collaboration__card {
      width: 100%;
      aspect-ratio: auto;
      min-height: 252px;
    }

    .c-external-collaboration__card--support {
      grid-column: 1 / -1;
      min-height: 270px;
    }

    .c-external-collaboration__card--support > a {
      padding: 18px 16px 14px;
    }

    .c-external-collaboration__support-title {
      margin-top: 9px;
      font-size: 24px;
      line-height: 1.28;
    }

    .c-external-collaboration__support-note {
      padding: 9px 10px;
    }

    .c-external-collaboration__support-note b {
      font-size: 9px;
    }

    .c-external-collaboration__support-note span {
      font-size: 10.5px;
      line-height: 1.5;
    }

    .c-external-collaboration__diagnosis-ribbon {
      min-height: 43px;
      padding: 9px 34px 9px 9px;
      font-size: 8px;
    }

    .c-external-collaboration__diagnosis-body {
      padding: 11px 10px 7px;
    }

    .c-external-collaboration__diagnosis-body small {
      font-size: 8px;
    }

    .c-external-collaboration__diagnosis-body strong {
      margin-top: 7px;
      font-size: 25px;
      line-height: 1.12;
    }

    .c-external-collaboration__diagnosis-foot {
      grid-template-columns: 27px 1fr;
      gap: 6px;
      margin: 0 10px 11px;
      padding-top: 8px;
    }

    .c-external-collaboration__diagnosis-foot i {
      width: 25px;
      height: 25px;
    }

    .c-external-collaboration__diagnosis-foot i::before {
      top: 12px;
      left: 6px;
      width: 13px;
    }

    .c-external-collaboration__diagnosis-foot i::after {
      top: 7px;
      left: 12px;
      height: 11px;
    }

    .c-external-collaboration__diagnosis-foot b {
      font-size: 8.5px;
      line-height: 1.4;
    }

    .c-external-collaboration__jinji-top {
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      justify-content: center;
      gap: 5px;
      min-height: 79px;
      padding: 9px 35px 8px 10px;
    }

    .c-external-collaboration__jinji-days b {
      font-size: 25px;
    }

    .c-external-collaboration__jinji-top > strong {
      font-size: 8.5px;
      line-height: 1.35;
    }

    .c-external-collaboration__jinji-main {
      padding: 10px 7px 8px;
    }

    .c-external-collaboration__jinji-main small {
      font-size: 7.5px;
    }

    .c-external-collaboration__jinji-main strong {
      margin-top: 8px;
      font-size: 28px;
    }

    .c-external-collaboration__jinji-main strong::after {
      right: -4px;
      left: -4px;
      height: 7px;
    }

    .c-external-collaboration__jinji-foot {
      padding: 9px 6px;
      font-size: 8.5px;
    }

    .c-external-collaboration__card--yokusuru {
      grid-column: 1 / -1;
      min-height: 184px;
    }

    .c-external-collaboration__card--yokusuru > a {
      display: grid;
      grid-template-columns: 116px minmax(0, 1fr);
      grid-template-rows: 1fr auto;
    }

    .c-external-collaboration__yokusuru-brand {
      grid-row: 1 / 3;
      min-height: 0;
      padding: 16px 12px;
    }

    .c-external-collaboration__yokusuru-brand small {
      margin-bottom: 9px;
      font-size: 7px;
      text-align: center;
    }

    .c-external-collaboration__yokusuru-brand img {
      width: min(100px, 100%);
    }

    .c-external-collaboration__yokusuru-copy {
      padding: 18px 34px 8px 14px;
    }

    .c-external-collaboration__yokusuru-copy strong {
      font-size: 21px;
      line-height: 1.32;
    }

    .c-external-collaboration__yokusuru-copy > span {
      margin-top: 7px;
      font-size: 10px;
      line-height: 1.48;
    }

    .c-external-collaboration__yokusuru-tag {
      margin: 0 14px 13px;
      padding: 4px 7px;
      font-size: 8.5px;
    }

    .c-external-collaboration__chatwork {
      width: min(304px, 100%);
      margin-top: 14px;
      padding: 6px;
    }

    .c-external-collaboration__chatwork-inner {
      padding: 9px 11px 10px;
    }

    .c-external-collaboration__chatwork h3 {
      margin-block: 6px;
      font-size: 13.5px;
    }

    .c-external-collaboration__chatwork-logo {
      min-height: 40px;
      padding-block: 3px;
    }

    .c-external-collaboration__chatwork-logo img {
      width: min(164px, 92%);
      max-height: 33px;
    }

    .c-external-collaboration__chatwork a {
      margin-top: 6px;
      padding-block: 8px;
      font-size: 11.5px;
    }

    .c-external-collaboration__note {
      margin-top: 9px;
      font-size: 9px;
      text-align: left;
    }
  }

  @media (max-width: 340px) {
    .c-external-collaboration__grid {
      grid-template-columns: 1fr;
    }

    .c-external-collaboration__card,
    .c-external-collaboration__card--support,
    .c-external-collaboration__card--yokusuru {
      grid-column: auto;
    }

    .c-external-collaboration__card--diagnosis,
    .c-external-collaboration__card--jinjipack {
      min-height: 270px;
    }
  }

  /* Responsive support rail foundation. */
  .c-external-collaboration {
    padding-block: clamp(42px, 4vw, 56px);
    border-block: 1px solid rgba(23, 49, 95, .13);
    background:
      linear-gradient(115deg, rgba(219, 234, 239, .72) 0 19%, transparent 19% 100%),
      radial-gradient(circle at 88% 18%, rgba(185, 135, 47, .1), transparent 23%),
      #f2f3ef;
    box-shadow:
      inset 0 1px 0 rgba(255, 255, 255, .88),
      inset 0 -1px 0 rgba(255, 255, 255, .72);
  }

  .c-external-collaboration .c-external-collaboration__inner {
    width: min(1240px, calc(100% - 48px));
  }

  .c-external-collaboration .c-external-collaboration__head {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: clamp(24px, 3.5vw, 48px);
    align-items: end;
    margin-bottom: clamp(22px, 2.5vw, 30px);
  }

  .c-external-collaboration .c-external-collaboration__head > div:first-child {
    min-width: 0;
  }

  .c-external-collaboration .c-external-collaboration__head h2 {
    font-size: clamp(28px, 2.45vw, 37px);
    letter-spacing: .02em;
    white-space: nowrap;
  }

  .c-external-collaboration__head-side {
    display: block;
    align-self: end;
  }

  .c-external-collaboration__rail-tools {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 7px;
  }

  .c-external-collaboration__rail-count {
    min-width: 66px;
    margin-right: 5px;
    color: #7b8492;
    font-family: Arial, sans-serif;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .12em;
    text-align: right;
  }

  .c-external-collaboration__rail-count b {
    color: var(--sq-navy);
    font-size: 12px;
  }

  .c-external-collaboration__rail-tools button {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    padding: 0;
    border: 1px solid rgba(23, 49, 95, .28);
    border-radius: 50%;
    color: var(--sq-navy);
    background: rgba(255, 255, 255, .78);
    box-shadow: 0 5px 13px rgba(16, 37, 67, .06);
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    transition: color .18s ease, background-color .18s ease, border-color .18s ease, transform .18s ease;
  }

  .c-external-collaboration__rail-tools button:hover:not(:disabled):not([aria-disabled="true"]) {
    border-color: var(--sq-navy);
    color: #fff;
    background: var(--sq-navy);
    transform: translateY(-1px);
  }

  .c-external-collaboration__rail-tools button:focus-visible {
    outline: 2px solid var(--sq-gold);
    outline-offset: 3px;
  }

  .c-external-collaboration__rail-tools button:disabled,
  .c-external-collaboration__rail-tools button[aria-disabled="true"] {
    opacity: .34;
    cursor: default;
  }

  .c-external-collaboration__showcase {
    display: grid;
    grid-template-columns: minmax(0, 1fr) clamp(260px, 23vw, 300px);
    gap: 18px;
    align-items: stretch;
  }

  .c-external-collaboration__rail-frame {
    position: relative;
    min-width: 0;
    overflow: hidden;
  }

  .c-external-collaboration__rail-frame::after {
    position: absolute;
    inset: 0 0 0 auto;
    z-index: 3;
    width: 54px;
    content: "";
    pointer-events: none;
    background: linear-gradient(90deg, transparent, rgba(242, 243, 239, .9));
    transition: opacity .2s ease;
  }

  .c-external-collaboration[data-rail-end="true"] .c-external-collaboration__rail-frame::after {
    opacity: 0;
  }

  .c-external-collaboration .c-external-collaboration__grid {
    display: flex;
    gap: 12px;
    width: 100%;
    height: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    overscroll-behavior-inline: contain;
    scroll-padding-inline: 0;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .c-external-collaboration .c-external-collaboration__grid::-webkit-scrollbar {
    display: none;
  }

  .c-external-collaboration .c-external-collaboration__grid:focus-visible {
    outline: 2px solid var(--sq-gold);
    outline-offset: -2px;
  }

  .c-external-collaboration .c-external-collaboration__card {
    flex: 0 0 clamp(290px, 25vw, 312px);
    width: auto;
    min-width: 0;
    min-height: 0;
    aspect-ratio: 1 / 1.02;
    scroll-snap-align: start;
    scroll-snap-stop: normal;
  }

  .c-external-collaboration .c-external-collaboration__card:hover {
    transform: none;
  }

  .c-external-collaboration .c-external-collaboration__card--support,
  .c-external-collaboration .c-external-collaboration__card--yokusuru {
    grid-column: auto;
  }

  .c-external-collaboration .c-external-collaboration__chatwork {
    display: block;
    width: auto;
    min-height: 0;
    height: 100%;
    margin: 0;
    padding: 8px;
    border-radius: 8px;
    background: #ef354d;
    box-shadow: 0 14px 30px rgba(16, 37, 67, .1);
  }

  .c-external-collaboration .c-external-collaboration__chatwork-inner {
    justify-content: center;
    height: 100%;
    min-height: 0;
    padding: 22px 20px 20px;
    border-radius: 4px;
  }

  .c-external-collaboration .c-external-collaboration__chatwork p {
    font-size: 8.5px;
    letter-spacing: .16em;
  }

  .c-external-collaboration .c-external-collaboration__chatwork h3 {
    margin: 13px 0 10px;
    font-size: 17px;
    line-height: 1.55;
  }

  .c-external-collaboration .c-external-collaboration__chatwork-logo {
    min-height: 68px;
    padding: 8px 5px;
  }

  .c-external-collaboration .c-external-collaboration__chatwork-logo img {
    width: min(218px, 96%);
    max-height: 48px;
  }

  .c-external-collaboration .c-external-collaboration__chatwork a {
    min-height: 42px;
    margin-top: 14px;
    padding: 10px 13px;
    font-size: 13px;
  }

  .c-external-collaboration .c-external-collaboration__note {
    margin-top: 12px;
  }

  @media (max-width: 1080px) {
    .c-external-collaboration .c-external-collaboration__head {
      grid-template-columns: minmax(0, 1fr) auto;
      gap: 22px;
    }

    .c-external-collaboration .c-external-collaboration__head h2 {
      font-size: clamp(23px, 3vw, 31px);
    }

    .c-external-collaboration__showcase {
      grid-template-columns: minmax(0, 1fr) clamp(235px, 29vw, 270px);
      gap: 15px;
    }

    .c-external-collaboration .c-external-collaboration__card {
      flex-basis: clamp(272px, 34vw, 296px);
    }

    .c-external-collaboration .c-external-collaboration__chatwork h3 {
      font-size: 15px;
    }

    .c-external-collaboration .c-external-collaboration__chatwork-logo img {
      width: min(190px, 96%);
    }
  }

  @media (max-width: 700px) {
    .c-external-collaboration {
      padding-block: 38px;
    }

    .c-external-collaboration .c-external-collaboration__inner {
      width: min(100% - 24px, 520px);
    }

    .c-external-collaboration .c-external-collaboration__head {
      grid-template-columns: 1fr;
      gap: 12px;
      margin-bottom: 20px;
    }

    .c-external-collaboration .c-external-collaboration__head h2 {
      max-width: 17em;
      font-size: clamp(25px, 7.25vw, 30px);
      line-height: 1.42;
      letter-spacing: .015em;
      text-wrap: balance;
      white-space: normal;
    }

    .c-external-collaboration__rail-tools {
      justify-content: flex-start;
    }

    .c-external-collaboration__showcase {
      display: block;
    }

    .c-external-collaboration .c-external-collaboration__grid {
      gap: 10px;
    }

    .c-external-collaboration .c-external-collaboration__card {
      flex-basis: min(78vw, 300px);
      width: auto;
      min-height: 0 !important;
      aspect-ratio: 1 / 1.02;
    }

    .c-external-collaboration .c-external-collaboration__chatwork {
      width: min(300px, 100%);
      height: auto;
      margin: 14px auto 0;
      aspect-ratio: 1 / 1.02;
    }

    .c-external-collaboration .c-external-collaboration__chatwork-inner {
      padding: 19px 18px 18px;
    }

    .c-external-collaboration .c-external-collaboration__chatwork h3 {
      margin-block: 11px 8px;
      font-size: 16px;
    }

    .c-external-collaboration .c-external-collaboration__chatwork-logo {
      min-height: 62px;
    }

    .c-external-collaboration .c-external-collaboration__chatwork-logo img {
      width: min(205px, 96%);
      max-height: 45px;
    }

    .c-external-collaboration .c-external-collaboration__chatwork a {
      margin-top: 12px;
      font-size: 12.5px;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    .c-external-collaboration__card,
    .c-external-collaboration__external,
    .c-external-collaboration__chatwork a,
    .c-external-collaboration__rail-tools button {
      transition: none;
    }
  }

/* Five-card desktop/tablet composition; mobile keeps Chatwork outside the rail. */
  .c-external-collaboration .c-external-collaboration__rail-tools {
    display: none;
  }

  .c-external-collaboration .c-external-collaboration__rail-frame::after {
    display: none;
  }

  @media (min-width: 1181px) {
    .c-external-collaboration .c-external-collaboration__inner {
      width: min(1560px, calc(100% - 32px));
    }

    .c-external-collaboration .c-external-collaboration__showcase {
      display: grid;
      grid-template-columns: repeat(5, minmax(0, 1fr));
      gap: clamp(9px, .8vw, 14px);
      align-items: stretch;
    }

    .c-external-collaboration[data-card-count="2"] .c-external-collaboration__showcase {
      grid-template-columns: repeat(3, minmax(0, 300px));
      justify-content: center;
    }

    .c-external-collaboration[data-card-count="3"] .c-external-collaboration__showcase {
      grid-template-columns: repeat(4, minmax(0, 300px));
      justify-content: center;
    }

    .c-external-collaboration .c-external-collaboration__rail-frame,
    .c-external-collaboration .c-external-collaboration__grid {
      display: contents;
    }

    .c-external-collaboration .c-external-collaboration__card {
      width: auto;
      min-width: 0;
      min-height: 0;
      aspect-ratio: 1 / 1.04;
    }

    .c-external-collaboration .c-external-collaboration__chatwork {
      width: auto;
      min-width: 0;
      height: auto;
      min-height: 0;
      aspect-ratio: 1 / 1.04;
    }

    .c-external-collaboration .c-external-collaboration__chatwork-inner {
      padding: clamp(16px, 1.4vw, 23px);
    }

    .c-external-collaboration .c-external-collaboration__chatwork h3 {
      font-size: clamp(14px, 1.2vw, 17px);
    }

    .c-external-collaboration .c-external-collaboration__chatwork-logo img {
      width: min(205px, 94%);
    }

    .c-external-collaboration .c-external-collaboration__chatwork a {
      padding-inline: 9px;
      font-size: clamp(11px, .95vw, 13px);
    }
  }

  @media (min-width: 701px) and (max-width: 1180px) {
    .c-external-collaboration .c-external-collaboration__inner {
      width: min(100% - 32px, 1120px);
    }

    .c-external-collaboration .c-external-collaboration__showcase {
      display: grid;
      grid-template-columns: repeat(6, minmax(0, 1fr));
      gap: 14px;
      width: min(100%, 980px);
      margin-inline: auto;
      align-items: stretch;
    }

    .c-external-collaboration .c-external-collaboration__rail-frame,
    .c-external-collaboration .c-external-collaboration__grid {
      display: contents;
    }

    .c-external-collaboration .c-external-collaboration__card {
      grid-column: span 2;
      width: auto;
      min-width: 0;
      min-height: 0;
      aspect-ratio: 1 / 1.04;
    }

    .c-external-collaboration .c-external-collaboration__card:nth-child(4) {
      grid-column: 2 / span 2;
    }

    .c-external-collaboration .c-external-collaboration__chatwork {
      grid-column: 4 / span 2;
      width: auto;
      min-width: 0;
      min-height: 0;
      height: auto;
      margin: 0;
      aspect-ratio: 1 / 1.04;
    }

    .c-external-collaboration .c-external-collaboration__chatwork-inner {
      padding: clamp(17px, 2.6vw, 25px);
    }

    .c-external-collaboration .c-external-collaboration__chatwork h3 {
      font-size: clamp(15px, 2vw, 18px);
    }

    .c-external-collaboration .c-external-collaboration__chatwork-logo img {
      width: min(210px, 94%);
    }

    .c-external-collaboration[data-card-count="2"] .c-external-collaboration__showcase {
      grid-template-columns: repeat(3, minmax(0, 1fr));
      width: min(100%, 900px);
    }

    .c-external-collaboration[data-card-count="3"] .c-external-collaboration__showcase {
      grid-template-columns: repeat(2, minmax(0, 300px));
      justify-content: center;
      width: min(100%, 614px);
    }

    .c-external-collaboration[data-card-count="2"] .c-external-collaboration__card,
    .c-external-collaboration[data-card-count="3"] .c-external-collaboration__card,
    .c-external-collaboration[data-card-count="2"] .c-external-collaboration__chatwork,
    .c-external-collaboration[data-card-count="3"] .c-external-collaboration__chatwork {
      grid-column: auto;
    }
  }

  @media (max-width: 700px) {
    .c-external-collaboration .c-external-collaboration__rail-tools {
      display: flex;
    }

    .c-external-collaboration .c-external-collaboration__rail-frame {
      display: block;
    }

    .c-external-collaboration .c-external-collaboration__rail-frame::after {
      display: block;
    }

    .c-external-collaboration .c-external-collaboration__grid {
      display: flex;
    }

    .c-external-collaboration .c-external-collaboration__chatwork {
      display: block;
      width: 100%;
      height: auto;
      min-height: 0;
      margin-top: 14px;
      aspect-ratio: auto;
    }

    .c-external-collaboration .c-external-collaboration__chatwork-inner {
      display: grid;
      grid-template-columns: minmax(106px, .72fr) minmax(0, 1.28fr);
      grid-template-rows: auto auto auto;
      gap: 4px 14px;
      height: auto;
      min-height: 0;
      padding: 15px 16px 14px;
    }

    .c-external-collaboration .c-external-collaboration__chatwork p {
      grid-column: 2;
      align-self: end;
      font-size: 7px;
      text-align: left;
    }

    .c-external-collaboration .c-external-collaboration__chatwork h3 {
      grid-column: 2;
      align-self: start;
      margin: 2px 0 0;
      font-size: clamp(12.5px, 3.6vw, 14px);
      line-height: 1.5;
      text-align: left;
    }

    .c-external-collaboration .c-external-collaboration__chatwork-logo {
      grid-column: 1;
      grid-row: 1 / 3;
      min-height: 66px;
      padding: 4px 0;
    }

    .c-external-collaboration .c-external-collaboration__chatwork-logo img {
      width: min(126px, 100%);
      max-height: 40px;
    }

    .c-external-collaboration .c-external-collaboration__chatwork a {
      grid-column: 1 / -1;
      min-height: 40px;
      margin-top: 8px;
      padding-block: 9px;
      font-size: 12px;
    }
  }

/* Quiet editorial frame. */
  .c-external-collaboration {
    overflow: hidden;
    border-block: 0;
    background:
      radial-gradient(circle at 50% 50%, rgba(255, 255, 255, .58), transparent 56%),
      #f7f5ef;
    box-shadow: none;
  }

  .c-external-collaboration::before {
    inset: 12px max(16px, calc((100% - 1580px) / 2));
    border-top: 1px solid rgba(23, 49, 95, .34);
    border-bottom: 1px solid rgba(23, 49, 95, .34);
    background:
      linear-gradient(90deg, rgba(23, 49, 95, .16), rgba(23, 49, 95, .16)) top 6px left / 100% 1px no-repeat,
      linear-gradient(90deg, rgba(23, 49, 95, .12), rgba(23, 49, 95, .12)) bottom 6px left / 100% 1px no-repeat,
      linear-gradient(rgba(23, 49, 95, .22), rgba(23, 49, 95, .22)) top left 10px / 1px 35px no-repeat,
      linear-gradient(rgba(23, 49, 95, .22), rgba(23, 49, 95, .22)) top right 10px / 1px 35px no-repeat,
      linear-gradient(rgba(23, 49, 95, .18), rgba(23, 49, 95, .18)) bottom left 10px / 1px 35px no-repeat,
      linear-gradient(rgba(23, 49, 95, .18), rgba(23, 49, 95, .18)) bottom right 10px / 1px 35px no-repeat;
    mask-image: none;
  }

  .c-external-collaboration::after {
    position: absolute;
    top: 3px;
    right: max(34px, calc((100% - 1510px) / 2));
    z-index: 0;
    content: "COLLABORATION  /  SUPPORT DESK";
    padding: 2px 11px;
    color: rgba(23, 49, 95, .58);
    background: #f7f5ef;
    font-family: Arial, sans-serif;
    font-size: 8px;
    font-weight: 700;
    letter-spacing: .19em;
    pointer-events: none;
  }

  .c-external-collaboration .c-external-collaboration__inner {
    position: relative;
    z-index: 1;
  }

  @media (max-width: 700px) {
    .c-external-collaboration::before {
      inset: 9px 8px;
      background:
        linear-gradient(90deg, rgba(23, 49, 95, .14), rgba(23, 49, 95, .14)) top 5px left / 100% 1px no-repeat,
        linear-gradient(90deg, rgba(23, 49, 95, .1), rgba(23, 49, 95, .1)) bottom 5px left / 100% 1px no-repeat;
    }

    .c-external-collaboration::after {
      top: 2px;
      right: 23px;
      font-size: 6px;
      letter-spacing: .13em;
    }

  }

/* Recessed paper finish. */
  .c-external-collaboration {
    border-block: 1px solid rgba(23, 49, 95, .08);
    background:
      linear-gradient(
        180deg,
        rgba(120, 139, 150, .11) 0,
        rgba(255, 255, 255, .2) 10px,
        transparent 34px,
        transparent calc(100% - 34px),
        rgba(255, 255, 255, .22) calc(100% - 10px),
        rgba(120, 139, 150, .1) 100%
      ),
      #f7f5ef;
    box-shadow:
      inset 0 18px 25px -22px rgba(12, 36, 62, .48),
      inset 0 -20px 27px -23px rgba(12, 36, 62, .46),
      inset 0 2px 0 rgba(255, 255, 255, .86),
      inset 0 -2px 0 rgba(255, 255, 255, .7);
  }

  .c-external-collaboration::before {
    filter: drop-shadow(0 -1px 0 rgba(255, 255, 255, .62));
  }

  @media (max-width: 700px) {
    .c-external-collaboration {
      box-shadow:
        inset 0 14px 20px -18px rgba(12, 36, 62, .4),
        inset 0 -16px 22px -19px rgba(12, 36, 62, .38),
        inset 0 2px 0 rgba(255, 255, 255, .82),
        inset 0 -2px 0 rgba(255, 255, 255, .66);
    }
  }

/* Adopted V33 curved courtyard shell and content-driven equal-height cards. */
.c-external-collaboration-shell {
    --external-shell-ink: var(--navy, #17315f);
    --external-shell-gold: var(--gold, #b9872f);
    box-sizing: border-box;
    position: relative;
    isolation: isolate;
    overflow: hidden;
    padding: clamp(42px, 4.4vw, 66px) 0 clamp(72px, 6.4vw, 98px);
    background: #fbfaf6;
  }

  .c-external-collaboration-shell *,
  .c-external-collaboration-shell *::before,
  .c-external-collaboration-shell *::after {
    box-sizing: inherit;
  }

  .c-external-collaboration-shell::before {
    position: absolute;
    inset: clamp(46px, 4.8vw, 70px) max(20px, calc((100% - 1540px) / 2)) clamp(54px, 5vw, 78px);
    z-index: -2;
    border: 1px solid rgba(99, 134, 145, .1);
    border-radius: 132px 42px 142px 46px / 76px 42px 92px 46px;
    background:
      radial-gradient(circle at 14% 26%, rgba(255, 255, 255, .7), transparent 28%),
      radial-gradient(circle at 88% 70%, rgba(235, 210, 169, .22), transparent 28%),
      linear-gradient(122deg, #eaf3f2, #f1f4ef 56%, #f5efe4);
    box-shadow:
      inset 0 16px 28px -30px rgba(18, 50, 68, .46),
      inset 0 -14px 26px -30px rgba(18, 50, 68, .34);
    content: "";
  }

  .c-external-collaboration-shell::after {
    position: absolute;
    right: max(36px, calc((100% - 1480px) / 2 + 18px));
    bottom: clamp(66px, 6vw, 91px);
    z-index: -1;
    width: clamp(130px, 13vw, 194px);
    aspect-ratio: 1;
    border: 1px solid rgba(185, 135, 47, .12);
    border-radius: 50%;
    content: "";
  }

  .c-external-collaboration-shell__flow {
    position: absolute;
    top: clamp(218px, 18vw, 286px);
    left: 0;
    z-index: -1;
    width: 100%;
    height: clamp(250px, 24vw, 360px);
    pointer-events: none;
  }

  .c-external-collaboration-shell__flow svg {
    display: block;
    width: 100%;
    height: 100%;
    overflow: visible;
  }

  .c-external-collaboration-shell__flow-wash,
  .c-external-collaboration-shell__flow-line {
    fill: none;
    vector-effect: non-scaling-stroke;
  }

  .c-external-collaboration-shell__flow-wash {
    stroke: rgba(175, 214, 226, .22);
    stroke-linecap: round;
    stroke-width: 82;
  }

  .c-external-collaboration-shell__flow-line {
    stroke: rgba(184, 139, 53, .23);
    stroke-linecap: round;
    stroke-width: 1.2;
  }

  .c-external-collaboration-shell__court-mark {
    position: absolute;
    top: clamp(61px, 5.8vw, 84px);
    left: 50%;
    z-index: 3;
    display: flex;
    gap: 10px;
    align-items: center;
    color: rgba(23, 49, 95, .42);
    font-family: Arial, sans-serif;
    font-size: 7px;
    font-weight: 700;
    letter-spacing: .18em;
    transform: translateX(-50%);
    pointer-events: none;
  }

  .c-external-collaboration-shell__court-mark i {
    display: block;
    width: 28px;
    height: 1px;
    background: rgba(185, 135, 47, .36);
  }

  .c-external-collaboration-shell .c-external-collaboration {
    position: relative;
    z-index: 1;
    overflow: visible;
    padding: clamp(62px, 5.4vw, 82px) 0 clamp(50px, 4.5vw, 66px);
    border: 0;
    background: transparent;
    box-shadow: none;
  }

  .c-external-collaboration-shell .c-external-collaboration::before,
  .c-external-collaboration-shell .c-external-collaboration::after {
    display: none;
  }

  .c-external-collaboration-shell .c-external-collaboration__inner {
    width: min(1480px, calc(100% - 52px));
  }

  .c-external-collaboration-shell .c-external-collaboration__head {
    display: block;
    margin-bottom: clamp(26px, 2.7vw, 34px);
    text-align: center;
  }

  .c-external-collaboration-shell .c-external-collaboration__head > div:first-child {
    width: min(100%, 1120px);
    margin-inline: auto;
  }

  .c-external-collaboration-shell .c-external-collaboration__eyebrow {
    justify-content: center;
  }

  .c-external-collaboration-shell .c-external-collaboration__head h2 {
    max-width: none;
    text-align: center;
    text-wrap: balance;
    white-space: normal;
  }

  .c-external-collaboration-shell .c-external-collaboration__head-side {
    margin-top: 14px;
  }

  .c-external-collaboration-shell .c-external-collaboration__rail-tools {
    justify-content: center;
  }

  /* Height is driven by content; grid stretching keeps peers visually even. */
  .c-external-collaboration-shell .c-external-collaboration__showcase {
    grid-auto-rows: 1fr;
    align-items: stretch;
  }

  .c-external-collaboration-shell .c-external-collaboration__grid {
    align-items: stretch;
  }

  .c-external-collaboration-shell .c-external-collaboration__card,
  .c-external-collaboration-shell .c-external-collaboration__chatwork {
    height: auto;
    min-height: 0;
    aspect-ratio: auto;
  }

  .c-external-collaboration-shell .c-external-collaboration__card > a {
    height: 100%;
  }

  .c-external-collaboration-shell .c-external-collaboration__support-note {
    margin-top: clamp(15px, 1.25vw, 20px);
  }

  .c-external-collaboration-shell .c-external-collaboration__head-side > p {
    padding-left: 0;
    border-left: 0;
  }

  .c-external-collaboration-shell .c-external-collaboration__rail-tools button {
    border-color: rgba(23, 49, 95, .18);
    background: rgba(255, 255, 255, .64);
    box-shadow: none;
  }

  .c-external-collaboration-shell .c-external-collaboration__card {
    overflow: hidden;
    border-color: rgba(23, 49, 95, .09);
    border-radius: 20px 12px 20px 12px;
    background: rgba(255, 254, 250, .97);
    box-shadow: 0 14px 28px rgba(25, 49, 66, .06);
  }

  .c-external-collaboration-shell .c-external-collaboration__external {
    border: 0;
    color: #fff;
    background: var(--external-shell-ink);
    box-shadow: none;
  }

  .c-external-collaboration-shell .c-external-collaboration__chatwork {
    position: relative;
    overflow: hidden;
    padding: 0;
    border: 1px solid rgba(23, 49, 95, .1);
    border-radius: 20px 12px 20px 12px;
    background: rgba(255, 254, 250, .97);
    box-shadow: 0 14px 28px rgba(25, 49, 66, .06);
  }

  .c-external-collaboration-shell .c-external-collaboration__chatwork::before {
    position: absolute;
    inset: 0 auto 0 0;
    z-index: 2;
    width: 5px;
    background: #ef354d;
    content: "";
  }

  .c-external-collaboration-shell .c-external-collaboration__chatwork-inner {
    padding: 23px 22px 76px 27px;
    border-radius: inherit;
    background: transparent;
  }

  /* The visible CTA stays button-like, while its anchor covers the whole Chatwork card. */
  .c-external-collaboration-shell .c-external-collaboration__chatwork a {
    position: absolute;
    inset: 0;
    z-index: 4;
    display: block;
    min-height: 0;
    margin: 0;
    padding: 0;
    border: 0;
    border-radius: inherit;
    color: transparent;
    background: transparent;
    box-shadow: none;
    font-size: 0;
  }

  .c-external-collaboration-shell .c-external-collaboration__chatwork a::after {
    position: absolute;
    right: 18px;
    bottom: 17px;
    left: 23px;
    display: grid;
    place-items: center;
    min-height: 42px;
    padding: 9px 12px;
    border: 1px solid rgba(239, 53, 77, .52);
    border-radius: 999px;
    color: #cf3048;
    background: #fff;
    content: "コンタクト申請はこちら　↗";
    font-family: Arial, sans-serif;
    font-size: 12px;
    font-weight: 800;
    transition: color .2s ease, background-color .2s ease, transform .2s ease;
  }

  .c-external-collaboration-shell .c-external-collaboration__chatwork a b {
    display: none;
  }

  .c-external-collaboration-shell .c-external-collaboration__chatwork a:hover,
  .c-external-collaboration-shell .c-external-collaboration__chatwork a:focus-visible {
    color: transparent;
    background: transparent;
    box-shadow: none;
    transform: none;
  }

  .c-external-collaboration-shell .c-external-collaboration__chatwork a:hover::after,
  .c-external-collaboration-shell .c-external-collaboration__chatwork a:focus-visible::after {
    color: #fff;
    background: #ef354d;
    transform: translateY(-1px);
  }

  .c-external-collaboration-shell .c-external-collaboration__chatwork a:focus-visible {
    outline: 3px solid var(--external-shell-gold);
    outline-offset: -6px;
  }

  .c-external-collaboration-shell .c-external-collaboration__note {
    color: #748184;
  }

  @media (min-width: 1400px) {
    .c-external-collaboration-shell .c-external-collaboration__showcase {
      grid-template-columns: repeat(5, minmax(0, 1fr));
      gap: clamp(10px, .9vw, 15px);
    }

    .c-external-collaboration-shell .c-external-collaboration__card,
    .c-external-collaboration-shell .c-external-collaboration__chatwork {
      height: auto;
      min-height: 0;
      aspect-ratio: auto;
    }
  }

  @media (min-width: 1181px) and (max-width: 1399px) {
    .c-external-collaboration-shell .c-external-collaboration__showcase {
      grid-template-columns: repeat(6, minmax(0, 1fr));
      gap: 15px;
      width: min(100%, 1010px);
      margin-inline: auto;
    }

    .c-external-collaboration-shell .c-external-collaboration__rail-frame,
    .c-external-collaboration-shell .c-external-collaboration__grid {
      display: contents;
    }

    .c-external-collaboration-shell .c-external-collaboration__card {
      grid-column: span 2;
      height: auto;
      min-height: 0;
      aspect-ratio: auto;
    }

    .c-external-collaboration-shell .c-external-collaboration__card:nth-child(4) {
      grid-column: 2 / span 2;
    }

    .c-external-collaboration-shell .c-external-collaboration__chatwork {
      grid-column: 4 / span 2;
      height: auto;
      min-height: 0;
      aspect-ratio: auto;
    }
  }

  @media (min-width: 701px) and (max-width: 1180px) {
    .c-external-collaboration-shell .c-external-collaboration__card,
    .c-external-collaboration-shell .c-external-collaboration__chatwork {
      height: auto;
      min-height: 0;
      aspect-ratio: auto;
    }
  }

  @media (max-width: 800px) {
    .c-external-collaboration-shell {
      padding: 28px 0 58px;
    }

    .c-external-collaboration-shell::before {
      inset: 24px 8px 38px;
      border-radius: 48px 16px 54px 18px / 34px 16px 42px 18px;
    }

    .c-external-collaboration-shell__flow {
      top: 238px;
      height: 250px;
      opacity: .68;
    }

    .c-external-collaboration-shell__flow-wash {
      stroke-width: 56;
    }

    .c-external-collaboration-shell__court-mark {
      top: 38px;
      font-size: 6px;
    }

    .c-external-collaboration-shell__court-mark i {
      width: 18px;
    }

    .c-external-collaboration-shell .c-external-collaboration {
      padding: 52px 0 42px;
    }

    .c-external-collaboration-shell .c-external-collaboration__inner {
      width: calc(100% - 36px);
    }
  }

  @media (max-width: 700px) {
    .c-external-collaboration-shell .c-external-collaboration__grid {
      height: auto;
      align-items: stretch;
    }

    .c-external-collaboration-shell .c-external-collaboration__card {
      height: auto;
      min-height: 0 !important;
      aspect-ratio: auto !important;
    }

    .c-external-collaboration-shell .c-external-collaboration__chatwork {
      min-height: 230px;
    }

    .c-external-collaboration-shell .c-external-collaboration__chatwork-inner {
      min-height: 230px;
      padding: 18px 16px 70px 21px;
    }

    .c-external-collaboration-shell .c-external-collaboration__chatwork a::after {
      right: 14px;
      bottom: 13px;
      left: 19px;
      min-height: 40px;
      font-size: 11.5px;
    }
  }

  @media (prefers-reduced-motion: reduce) {
    .c-external-collaboration-shell .c-external-collaboration__chatwork a::after {
      transition: none;
    }
  }