/* =========================================================
   Business — カードを使わない誌面組み（リズムと強弱）
   .folio-rows    : 縦3段・左右交互（採用）
   .folio-stagger : 段差のある3列（写真の比率と縦位置をずらし、番号と見出しを写真に掛ける）
   共通ルール：枠・白い面・下紙・浮く影は使わない。生成り地に直接組む。
              区切りは天罫（墨1px）と一点鎖線の折り線だけ。
   ========================================================= */

/* ---------- 共通（タイポと部品。配置は各案のメディアクエリ内） ---------- */
.paper-home .business {
  padding: 3.5rem var(--wrap) 5.5rem;
  background: var(--kinari);
}

.paper-home .folio {
  display: grid;
  padding-top: 1.5rem;
  border-top: 1px solid var(--ink);    /* 天罫：上だけ。箱にしない */
}

.paper-home .folio-item {
  position: relative;
  display: grid;
  min-width: 0;
  color: var(--text);
}

.paper-home .folio-copy { display: contents; }

/* 写真：16:9。比率の違う写真は中央を基準に切り取る */
.paper-home .folio-item figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: #e8e6df;
}

.paper-home .folio-item figure img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .35s ease;
}

.paper-home .folio-num {
  position: relative;
  z-index: 2;
  color: var(--ink);
  font-family: var(--bodoni);
  font-size: 2.5rem;
  font-weight: 500;
  font-variant-numeric: lining-nums;
  line-height: 1;
}

.paper-home .folio-copy h2 {
  position: relative;
  z-index: 2;
  color: var(--ink);
  font-size: clamp(1.375rem, 1.9vw, 1.625rem);
  line-height: 1.4;
}

.paper-home .folio-copy h2 span { display: inline-block; }

.paper-home .folio-copy p {
  margin: .75rem 0 0;
  font-size: .9375rem;
  line-height: 1.85;
}

.paper-home .folio-copy a {
  justify-self: start;
  align-self: start;
  display: inline-flex;
  align-items: center;
  gap: 1.25rem;
  margin-top: 1.25rem;
  padding-bottom: .3rem;
  color: var(--ink);
  background: linear-gradient(var(--ink), var(--ink)) 0 100% / 100% 1px no-repeat;
  font-size: .875rem;
  font-weight: 500;
  line-height: 1.6;
  transition: background-size .25s ease;
}

.paper-home .folio-copy a span { transition: transform .25s ease; }

/* 項目全体をリンク範囲に */
.paper-home .folio-copy a::after {
  position: absolute;
  z-index: 3;
  inset: 0;
  content: "";
}

.paper-home .folio-copy a:focus-visible { outline: none; }
.paper-home .folio-item:has(a:focus-visible) {
  outline: 2px solid var(--ink);
  outline-offset: .75rem;
}

/* hover：浮かせない。写真が切り抜きの中で寄り、下線が太り、矢印が進む */
.paper-home .folio-item:hover figure img { transform: scale(1.03); }
.paper-home .folio-item:hover .folio-copy a { background-size: 100% 2px; }
.paper-home .folio-item:hover .folio-copy a span { transform: translateX(.25rem); }

/* 折り線の部品（位置は各案で指定） */
.paper-home .folio-item::before,
.paper-home .folio-item::after {
  position: absolute;
  z-index: 1;
  pointer-events: none;
}

/* =========================================================
   (1) ROWS — 縦3段・写真と文章を左右交互（採用案）
   写真の幅を 7:5 → 6:6 → 5:7 と段ごとに変え、番号も 01 > 02 > 03 と小さくする
   写真と文章の境目に縦の折り線、段と段の間に水平の折り線
   ========================================================= */
@media (min-width: 721px) {
  .paper-home .folio-rows .folio {
    --row-gap: 4rem;
    --col-gap: 4rem;
    grid-template-columns: minmax(0, 1fr);
    row-gap: var(--row-gap);
  }

  .paper-home .folio-rows .folio-item {
    --photo: 7;                         /* 12分割のうち写真が占める比 */
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    grid-template-rows: auto minmax(1.5rem, 1fr) auto auto auto;
    column-gap: var(--col-gap);
  }
  .paper-home .folio-rows .folio-item--product {
    --photo: 6;
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }
  .paper-home .folio-rows .folio-item--workshop {
    --photo: 5;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  /* 写真：左・右・左 */
  .paper-home .folio-rows .folio-item figure { grid-column: 1; grid-row: 1 / -1; align-self: start; }
  .paper-home .folio-rows .folio-item--product figure { grid-column: 2; }

  /* 文章：番号は上、見出し〜リンクは下に寄せる */
  .paper-home .folio-rows .folio-num { grid-column: 2; grid-row: 1; justify-self: start; }
  .paper-home .folio-rows .folio-copy h2 { grid-column: 2; grid-row: 3; }
  .paper-home .folio-rows .folio-copy p { grid-column: 2; grid-row: 4; max-width: 28rem; }
  .paper-home .folio-rows .folio-copy a { grid-column: 2; grid-row: 5; }
  .paper-home .folio-rows .folio-item--product .folio-num,
  .paper-home .folio-rows .folio-item--product h2,
  .paper-home .folio-rows .folio-item--product p,
  .paper-home .folio-rows .folio-item--product a { grid-column: 1; }

  /* 番号は3段とも同じ大きさ */
  .paper-home .folio-rows .folio-num { margin-top: -.1em; font-size: clamp(3.75rem, 5.6vw, 5rem); }

  .paper-home .folio-rows .folio-item--model h2 { font-size: clamp(1.75rem, 2.5vw, 2.25rem); }
  .paper-home .folio-rows .folio-item--product h2,
  .paper-home .folio-rows .folio-item--workshop h2 { font-size: clamp(1.5rem, 2vw, 1.75rem); }

  /* 縦の折り線：写真と文章の境目 */
  .paper-home .folio-rows .folio-item::after {
    top: 0;
    bottom: 0;
    left: calc((100% - var(--col-gap)) * var(--photo) / 12 + var(--col-gap) / 2);
    width: 1px;
    background: var(--fold-v) 0 0 / 1px 19px repeat-y;
    content: "";
  }
  .paper-home .folio-rows .folio-item--product::after {
    left: calc((100% - var(--col-gap)) * (12 - var(--photo)) / 12 + var(--col-gap) / 2);
  }

  /* 水平の折り線：段と段の間 */
  .paper-home .folio-rows .folio-item + .folio-item::before {
    top: calc(var(--row-gap) / -2);
    right: 0;
    left: 0;
    height: 1px;
    background: var(--fold) 0 0 / 19px 1px repeat-x;
    content: "";
  }
}

@media (min-width: 721px) and (max-width: 1100px) {
  .paper-home .folio-rows .folio { --row-gap: 3rem; --col-gap: 2.5rem; }
  .paper-home .folio-rows .folio-item--workshop {
    --photo: 6;
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }
}

@media (max-width: 720px) {
  .paper-home .folio-rows .folio { grid-template-columns: minmax(0, 1fr); row-gap: 2.75rem; padding-top: 1.25rem; }

  .paper-home .folio-rows .folio-item { grid-template-columns: minmax(0, 1fr) auto; }
  /* 写真は3段とも全幅（中央） */
  .paper-home .folio-rows .folio-item figure { grid-column: 1 / -1; grid-row: 1; }

  .paper-home .folio-rows .folio-num { grid-column: 2; grid-row: 2; padding: .875rem 0 0 .5rem; font-size: 2.75rem; }
  .paper-home .folio-rows .folio-copy h2 { grid-column: 1; grid-row: 2; align-self: end; padding-top: 1.125rem; font-size: 1.375rem; }
  .paper-home .folio-rows .folio-item--model h2 { font-size: 1.625rem; }
  .paper-home .folio-rows .folio-copy p { grid-column: 1 / -1; grid-row: 3; }
  .paper-home .folio-rows .folio-copy a { grid-column: 1 / -1; grid-row: 4; }

  .paper-home .folio-rows .folio-item + .folio-item::before {
    top: -1.375rem;
    right: 0;
    left: 0;
    height: 1px;
    background: var(--fold) 0 0 / 19px 1px repeat-x;
    content: "";
  }
}

/* =========================================================
   (2) STAGGER — 段差のある3列
   ========================================================= */
@media (min-width: 1240px) {
  .paper-home .folio-stagger .folio {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: 3rem;
    align-items: start;
  }

  .paper-home .folio-stagger .folio-item {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto auto auto auto auto;
  }
  .paper-home .folio-stagger .folio-item--product { padding-top: 4.5rem; }
  .paper-home .folio-stagger .folio-item--workshop { padding-top: 9rem; }

  .paper-home .folio-stagger .folio-num { grid-row: 1; margin-bottom: -.42em; font-size: 4.5rem; }
  .paper-home .folio-stagger .folio-item figure { grid-row: 2; margin-left: 1.75rem; }
  .paper-home .folio-stagger .folio-item--model figure { aspect-ratio: 4 / 5; }
  .paper-home .folio-stagger .folio-item--product figure { aspect-ratio: 1; }
  .paper-home .folio-stagger .folio-item--workshop figure { aspect-ratio: 4 / 3; }

  /* 見出しは生成りの紙片として写真の左下に掛ける（ヒーローの段差組みの反復） */
  .paper-home .folio-stagger .folio-copy h2 {
    grid-row: 3;
    justify-self: start;
    margin-top: -1.15em;
    padding: .3em .55em .1em 0;
    background: var(--kinari);
  }
  .paper-home .folio-stagger .folio-copy p { grid-row: 4; }
  .paper-home .folio-stagger .folio-copy a { grid-row: 5; }

  .paper-home .folio-stagger .folio-item + .folio-item::before {
    top: -1.5rem;
    bottom: 0;
    left: -1.5rem;
    width: 1px;
    background: var(--fold-v) 0 0 / 1px 19px repeat-y;
    content: "";
  }
}

@media (min-width: 601px) and (max-width: 1239px) {
  .paper-home .folio-stagger .folio { grid-template-columns: minmax(0, 1fr); row-gap: 3rem; }

  /* 左右交互 */
  .paper-home .folio-stagger .folio-item {
    grid-template-columns: 46% minmax(0, 1fr);
    grid-template-rows: auto auto auto 1fr;
    column-gap: 2rem;
  }
  .paper-home .folio-stagger .folio-item--product { grid-template-columns: minmax(0, 1fr) 46%; }

  .paper-home .folio-stagger .folio-item figure { grid-column: 1; grid-row: 1 / -1; }
  .paper-home .folio-stagger .folio-item--product figure { grid-column: 2; }
  .paper-home .folio-stagger .folio-item--model figure { aspect-ratio: 1; }
  .paper-home .folio-stagger .folio-item--product figure { aspect-ratio: 4 / 3; }
  .paper-home .folio-stagger .folio-item--workshop figure { aspect-ratio: 3 / 2; }

  .paper-home .folio-stagger .folio-num { grid-column: 2; grid-row: 1; font-size: 3.5rem; }
  .paper-home .folio-stagger .folio-copy h2 { grid-column: 2; grid-row: 2; padding-top: .75rem; }
  .paper-home .folio-stagger .folio-copy p { grid-column: 2; grid-row: 3; }
  .paper-home .folio-stagger .folio-copy a { grid-column: 2; grid-row: 4; align-self: end; }
  .paper-home .folio-stagger .folio-item--product .folio-num,
  .paper-home .folio-stagger .folio-item--product h2,
  .paper-home .folio-stagger .folio-item--product p,
  .paper-home .folio-stagger .folio-item--product a { grid-column: 1; }

  /* 写真の上端に番号を掛ける */
  .paper-home .folio-stagger .folio-item--model .folio-num,
  .paper-home .folio-stagger .folio-item--workshop .folio-num { margin-left: -3.25rem; }
  .paper-home .folio-stagger .folio-item--product .folio-num { justify-self: end; margin-right: -3.25rem; }

  .paper-home .folio-stagger .folio-item + .folio-item::before {
    top: -1.5rem;
    right: 0;
    left: 0;
    height: 1px;
    background: var(--fold) 0 0 / 19px 1px repeat-x;
    content: "";
  }
}

@media (max-width: 600px) {
  .paper-home .folio-stagger .folio { grid-template-columns: minmax(0, 1fr); row-gap: 2.75rem; padding-top: 1.25rem; }

  .paper-home .folio-stagger .folio-item { grid-template-columns: minmax(0, 1fr); }
  .paper-home .folio-stagger .folio-num { grid-row: 1; margin-bottom: -.42em; font-size: 3.25rem; }
  .paper-home .folio-stagger .folio-item figure { grid-row: 2; width: 84%; }
  .paper-home .folio-stagger .folio-item--product figure { justify-self: end; }
  .paper-home .folio-stagger .folio-item--product .folio-num { justify-self: end; margin-right: 1rem; }
  .paper-home .folio-stagger .folio-item--model .folio-num,
  .paper-home .folio-stagger .folio-item--workshop .folio-num { margin-left: 1rem; }
  .paper-home .folio-stagger .folio-item--model figure { aspect-ratio: 4 / 5; }
  .paper-home .folio-stagger .folio-item--product figure { aspect-ratio: 1; }
  .paper-home .folio-stagger .folio-item--workshop figure { aspect-ratio: 4 / 3; }

  .paper-home .folio-stagger .folio-copy h2 {
    grid-row: 3;
    justify-self: start;
    margin-top: -1.15em;
    padding: .3em .55em .1em 0;
    background: var(--kinari);
    font-size: 1.5rem;
  }
  .paper-home .folio-stagger .folio-copy p { grid-row: 4; }
  .paper-home .folio-stagger .folio-copy a { grid-row: 5; }

  .paper-home .folio-stagger .folio-item + .folio-item::before {
    top: -1.375rem;
    right: 0;
    left: 0;
    height: 1px;
    background: var(--fold) 0 0 / 19px 1px repeat-x;
    content: "";
  }
}

@media (max-width: 720px) {
  .paper-home .business { padding-block: 2.5rem 3.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  .paper-home .folio-item:hover figure img { transform: none; }
}