.block {
  display: block;
}
.flex {
  display: flex;
}
.grid {
  display: grid;
}
.inline {
  display: inline;
}
.inline-block {
  display: inline-block;
}
.inline-flex {
  display: inline-flex;
}
.hidden {
  display: none;
}
.empty--hidden:empty,
.empty--hidden[href=""] {
  display: none;
}

@media screen and (min-width: 768px) {
  .md--block {
    display: block;
  }

  .md--flex {
    display: flex;
  }

  .md--grid {
    display: grid;
  }

  .md--inline {
    display: inline;
  }

  .md--inline-block {
    display: inline-block;
  }

  .md--inline-flex {
    display: inline-flex;
  }

  .md--hidden {
    display: none;
  }
}

@media screen and (min-width: 1024px) {
  .lg--block {
    display: block;
  }

  .lg--flex {
    display: flex;
  }

  .lg--grid {
    display: grid;
  }

  .lg--inline {
    display: inline;
  }

  .lg--inline-block {
    display: inline-block;
  }

  .lg--inline-flex {
    display: inline-flex;
  }

  .lg--hidden {
    display: none;
  }
}

@media screen and (min-width: 1200px) {
  .xl--block {
    display: block;
  }

  .xl--flex {
    display: flex;
  }

  .xl--grid {
    display: grid;
  }

  .xl--inline {
    display: inline;
  }

  .xl--inline-block {
    display: inline-block;
  }

  .xl--inline-flex {
    display: inline-flex;
  }

  .xl--hidden {
    display: none;
  }
}

/**
 * Flex Properties
 */
.flex-col {
  flex-direction: column;
}

.flex-row {
  flex-direction: row;
}

.flex-row-reverse {
  flex-direction: row-reverse;
}

.flex-col-reverse {
  flex-direction: column-reverse;
}

.flex-wrap {
  flex-wrap: wrap;
}

.flex-nowrap {
  flex-wrap: nowrap;
}

.flex-1 {
  flex: 1 1 0%;
}

.flex-auto {
  flex: 1 1 auto;
}

.flex-initial {
  flex: 0 1 auto;
}

.grow {
  flex-grow: 1;
}

.grow-0 {
  flex-grow: 0;
}

.shrink {
  flex-shrink: 1;
}

.shrink-0 {
  flex-shrink: 0;
}

.flex-none {
  flex: none;
}

.items-start {
  align-items: flex-start;
}

.items-end {
  align-items: flex-end;
}

.items-center {
  align-items: center;
}

.items-baseline {
  align-items: baseline;
}

.items-stretch {
  align-items: stretch;
}

.self-auto {
  align-self: auto;
}

.self-start {
  align-self: flex-start;
}

.self-end {
  align-self: flex-end;
}

.self-center {
  align-self: center;
}

.self-baseline {
  align-self: baseline;
}

.self-stretch {
  align-self: stretch;
}

.justify-start {
  justify-content: flex-start;
}

.justify-end {
  justify-content: flex-end;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.justify-around {
  justify-content: space-around;
}

/* space-around と違い、両端の余白も要素間と等しくなる。ナビやロゴ列の等間隔配置に使う。 */
.justify-evenly {
  justify-content: space-evenly;
}

.content-start {
  align-content: flex-start;
}

.content-end {
  align-content: flex-end;
}

.content-center {
  align-content: center;
}

.content-between {
  align-content: space-between;
}

.content-around {
  align-content: space-around;
}

.content-stretch {
  align-content: stretch;
}

/**
 * Order
 * 画像＋本文の交互配置など、SPとPCで並び順を変える用途。
 * flex-row-reverse は2要素にしか使えないため、3要素以上はこちらを使う。
 *
 * baseの値はBootstrapの同名クラスと同じにしてあるため、上書きされても結果は変わらない。
 * ブレークポイント版は、Bootstrapがbaseの .order-* に !important を付けている都合上、
 * それを上回るために !important が必要になる（.md--text-center と同じ理由）。
 * order-last だけは Bootstrap 4.1.3 が order: 13 !important を持っているため、
 * baseから !important + 独自値（99）で決定的にしている（#91 で実環境確認済み）。
 */
.order-0 {
  order: 0;
}
.order-1 {
  order: 1;
}
.order-2 {
  order: 2;
}
.order-3 {
  order: 3;
}
.order-first {
  order: -1;
}
.order-last {
  order: 99 !important;
}

@media screen and (min-width: 768px) {
  .md--flex-col {
    flex-direction: column;
  }

  .md--flex-row {
    flex-direction: row;
  }

  .md--flex-row-reverse {
    flex-direction: row-reverse;
  }

  .md--flex-col-reverse {
    flex-direction: column-reverse;
  }

  .md--flex-wrap {
    flex-wrap: wrap;
  }

  .md--flex-nowrap {
    flex-wrap: nowrap;
  }

  .md--flex-1 {
    flex: 1 1 0%;
  }

  .md--flex-auto {
    flex: 1 1 auto;
  }

  .md--flex-initial {
    flex: 0 1 auto;
  }

  .md--grow {
    flex-grow: 1;
  }

  .md--grow-0 {
    flex-grow: 0;
  }

  .md--shrink {
    flex-shrink: 1;
  }

  .md--shrink-0 {
    flex-shrink: 0;
  }

  .md--flex-none {
    flex: none;
  }

  .md--items-start {
    align-items: flex-start;
  }

  .md--items-end {
    align-items: flex-end;
  }

  .md--items-center {
    align-items: center;
  }

  .md--items-baseline {
    align-items: baseline;
  }

  .md--items-stretch {
    align-items: stretch;
  }

  .md--self-auto {
    align-self: auto;
  }

  .md--self-start {
    align-self: flex-start;
  }

  .md--self-end {
    align-self: flex-end;
  }

  .md--self-center {
    align-self: center;
  }

  .md--self-baseline {
    align-self: baseline;
  }

  .md--self-stretch {
    align-self: stretch;
  }

  .md--justify-start {
    justify-content: flex-start;
  }

  .md--justify-end {
    justify-content: flex-end;
  }

  .md--justify-center {
    justify-content: center;
  }

  .md--justify-between {
    justify-content: space-between;
  }

  .md--justify-around {
    justify-content: space-around;
  }

  .md--content-start {
    align-content: flex-start;
  }

  .md--content-end {
    align-content: flex-end;
  }

  .md--content-center {
    align-content: center;
  }

  .md--content-between {
    align-content: space-between;
  }

  .md--content-around {
    align-content: space-around;
  }

  .md--content-stretch {
    align-content: stretch;
  }

  .md--justify-evenly {
    justify-content: space-evenly;
  }

  .md--order-0 {
    order: 0 !important;
  }
  .md--order-1 {
    order: 1 !important;
  }
  .md--order-2 {
    order: 2 !important;
  }
  .md--order-3 {
    order: 3 !important;
  }
  .md--order-first {
    order: -1 !important;
  }
  .md--order-last {
    order: 99 !important;
  }
}

@media screen and (min-width: 1024px) {
  .lg--flex-col {
    flex-direction: column;
  }

  .lg--flex-row {
    flex-direction: row;
  }

  .lg--flex-row-reverse {
    flex-direction: row-reverse;
  }

  .lg--flex-col-reverse {
    flex-direction: column-reverse;
  }

  .lg--flex-wrap {
    flex-wrap: wrap;
  }

  .lg--flex-nowrap {
    flex-wrap: nowrap;
  }

  .lg--flex-1 {
    flex: 1 1 0%;
  }

  .lg--flex-auto {
    flex: 1 1 auto;
  }

  .lg--flex-initial {
    flex: 0 1 auto;
  }

  .lg--grow {
    flex-grow: 1;
  }

  .lg--grow-0 {
    flex-grow: 0;
  }

  .lg--shrink {
    flex-shrink: 1;
  }

  .lg--shrink-0 {
    flex-shrink: 0;
  }

  .lg--flex-none {
    flex: none;
  }

  .lg--items-start {
    align-items: flex-start;
  }

  .lg--items-end {
    align-items: flex-end;
  }

  .lg--items-center {
    align-items: center;
  }

  .lg--items-baseline {
    align-items: baseline;
  }

  .lg--items-stretch {
    align-items: stretch;
  }

  .lg--self-auto {
    align-self: auto;
  }

  .lg--self-start {
    align-self: flex-start;
  }

  .lg--self-end {
    align-self: flex-end;
  }

  .lg--self-center {
    align-self: center;
  }

  .lg--self-baseline {
    align-self: baseline;
  }

  .lg--self-stretch {
    align-self: stretch;
  }

  .lg--justify-start {
    justify-content: flex-start;
  }

  .lg--justify-end {
    justify-content: flex-end;
  }

  .lg--justify-center {
    justify-content: center;
  }

  .lg--justify-between {
    justify-content: space-between;
  }

  .lg--justify-around {
    justify-content: space-around;
  }

  .lg--content-start {
    align-content: flex-start;
  }

  .lg--content-end {
    align-content: flex-end;
  }

  .lg--content-center {
    align-content: center;
  }

  .lg--content-between {
    align-content: space-between;
  }

  .lg--content-around {
    align-content: space-around;
  }

  .lg--content-stretch {
    align-content: stretch;
  }

  .lg--justify-evenly {
    justify-content: space-evenly;
  }

  .lg--order-0 {
    order: 0 !important;
  }
  .lg--order-1 {
    order: 1 !important;
  }
  .lg--order-2 {
    order: 2 !important;
  }
  .lg--order-3 {
    order: 3 !important;
  }
  .lg--order-first {
    order: -1 !important;
  }
  .lg--order-last {
    order: 99 !important;
  }
}

@media screen and (min-width: 1200px) {
  .xl--flex-col {
    flex-direction: column;
  }

  .xl--flex-row {
    flex-direction: row;
  }

  .xl--flex-row-reverse {
    flex-direction: row-reverse;
  }

  .xl--flex-col-reverse {
    flex-direction: column-reverse;
  }

  .xl--flex-wrap {
    flex-wrap: wrap;
  }

  .xl--flex-nowrap {
    flex-wrap: nowrap;
  }

  .xl--flex-1 {
    flex: 1 1 0%;
  }

  .xl--flex-auto {
    flex: 1 1 auto;
  }

  .xl--flex-initial {
    flex: 0 1 auto;
  }

  .xl--grow {
    flex-grow: 1;
  }

  .xl--grow-0 {
    flex-grow: 0;
  }

  .xl--shrink {
    flex-shrink: 1;
  }

  .xl--shrink-0 {
    flex-shrink: 0;
  }

  .xl--flex-none {
    flex: none;
  }

  .xl--items-start {
    align-items: flex-start;
  }

  .xl--items-end {
    align-items: flex-end;
  }

  .xl--items-center {
    align-items: center;
  }

  .xl--items-baseline {
    align-items: baseline;
  }

  .xl--items-stretch {
    align-items: stretch;
  }

  .xl--self-auto {
    align-self: auto;
  }

  .xl--self-start {
    align-self: flex-start;
  }

  .xl--self-end {
    align-self: flex-end;
  }

  .xl--self-center {
    align-self: center;
  }

  .xl--self-baseline {
    align-self: baseline;
  }

  .xl--self-stretch {
    align-self: stretch;
  }

  .xl--justify-start {
    justify-content: flex-start;
  }

  .xl--justify-end {
    justify-content: flex-end;
  }

  .xl--justify-center {
    justify-content: center;
  }

  .xl--justify-between {
    justify-content: space-between;
  }

  .xl--justify-around {
    justify-content: space-around;
  }

  .xl--content-start {
    align-content: flex-start;
  }

  .xl--content-end {
    align-content: flex-end;
  }

  .xl--content-center {
    align-content: center;
  }

  .xl--content-between {
    align-content: space-between;
  }

  .xl--content-around {
    align-content: space-around;
  }

  .xl--content-stretch {
    align-content: stretch;
  }

  .xl--justify-evenly {
    justify-content: space-evenly;
  }

  .xl--order-0 {
    order: 0 !important;
  }
  .xl--order-1 {
    order: 1 !important;
  }
  .xl--order-2 {
    order: 2 !important;
  }
  .xl--order-3 {
    order: 3 !important;
  }
  .xl--order-first {
    order: -1 !important;
  }
  .xl--order-last {
    order: 99 !important;
  }
}

/**
 * Grid Properties
 */
.grid-cols-1 {
  grid-template-columns: repeat(1, minmax(0, 1fr));
}

.grid-cols-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-cols-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

/* ロゴ一覧や実績アイコンの多列グリッド用。 */
.grid-cols-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.grid-cols-5 {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}
.grid-cols-6 {
  grid-template-columns: repeat(6, minmax(0, 1fr));
}

.grid-column-1 {
  grid-column: span 1 / span 1;
}

.grid-column-2 {
  grid-column: span 2 / span 2;
}

.grid-column-3 {
  grid-column: span 3 / span 3;
}
.grid-column-4 {
  grid-column: span 4 / span 4;
}
.grid-column-5 {
  grid-column: span 5 / span 5;
}
.grid-column-6 {
  grid-column: span 6 / span 6;
}

@media screen and (min-width: 768px) {
  .md--grid-cols-1 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
  }

  .md--grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .md--grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .md--grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .md--grid-cols-5 {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
  .md--grid-cols-6 {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .md--grid-column-1 {
    grid-column: span 1 / span 1;
  }

  .md--grid-column-2 {
    grid-column: span 2 / span 2;
  }

  .md--grid-column-3 {
    grid-column: span 3 / span 3;
  }

  .md--grid-column-4 {
    grid-column: span 4 / span 4;
  }
  .md--grid-column-5 {
    grid-column: span 5 / span 5;
  }
  .md--grid-column-6 {
    grid-column: span 6 / span 6;
  }
}

@media screen and (min-width: 1024px) {
  .lg--grid-cols-1 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
  }

  .lg--grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lg--grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .lg--grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .lg--grid-cols-5 {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
  .lg--grid-cols-6 {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .lg--grid-column-1 {
    grid-column: span 1 / span 1;
  }

  .lg--grid-column-2 {
    grid-column: span 2 / span 2;
  }

  .lg--grid-column-3 {
    grid-column: span 3 / span 3;
  }

  .lg--grid-column-4 {
    grid-column: span 4 / span 4;
  }
  .lg--grid-column-5 {
    grid-column: span 5 / span 5;
  }
  .lg--grid-column-6 {
    grid-column: span 6 / span 6;
  }
}

@media screen and (min-width: 1200px) {
  .xl--grid-cols-1 {
    grid-template-columns: repeat(1, minmax(0, 1fr));
  }

  .xl--grid-cols-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .xl--grid-cols-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .xl--grid-cols-4 {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .xl--grid-cols-5 {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }
  .xl--grid-cols-6 {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .xl--grid-column-1 {
    grid-column: span 1 / span 1;
  }

  .xl--grid-column-2 {
    grid-column: span 2 / span 2;
  }

  .xl--grid-column-3 {
    grid-column: span 3 / span 3;
  }

  .xl--grid-column-4 {
    grid-column: span 4 / span 4;
  }
  .xl--grid-column-5 {
    grid-column: span 5 / span 5;
  }
  .xl--grid-column-6 {
    grid-column: span 6 / span 6;
  }
}

/**
 * Overflow Properties
 */
.overflow-hidden {
  overflow: hidden;
}

.overflow-visible {
  overflow: visible;
}

.overflow-scroll {
  overflow: scroll;
}

.overflow-auto {
  overflow: auto;
}

.overflow-x-hidden {
  overflow-x: hidden;
}

.overflow-y-hidden {
  overflow-y: hidden;
}

.overflow-x-visible {
  overflow-x: visible;
}

.overflow-y-visible {
  overflow-y: visible;
}

.overflow-x-scroll {
  overflow-x: scroll;
}

.overflow-y-scroll {
  overflow-y: scroll;
}

.overflow-x-auto {
  overflow-x: auto;
}

.overflow-y-auto {
  overflow-y: auto;
}

/* clip は hidden と違いスクロールコンテナを作らない。
 * そのため内側の position: sticky を殺さずにはみ出しだけを切れる。
 * .full-bleed の受け皿にはこちらを使う。
 * Safari 16 / Chrome 90 / Firefox 81 以降。効かない環境では宣言が捨てられ、
 * 横スクロールが出るだけで表示は壊れない。 */
.overflow-clip {
  overflow: clip;
}

.overflow-x-clip {
  overflow-x: clip;
}

.overflow-y-clip {
  overflow-y: clip;
}

/* SPだけ横スクロールさせ、PCで解除する用途。
 * Bootstrapがbaseの .overflow-* に !important を付けているため、
 * それを上回るために !important を付けている。 */

@media screen and (min-width: 768px) {
  .md--overflow-hidden {
    overflow: hidden !important;
  }
  .md--overflow-visible {
    overflow: visible !important;
  }
  .md--overflow-scroll {
    overflow: scroll !important;
  }
  .md--overflow-auto {
    overflow: auto !important;
  }
  .md--overflow-x-hidden {
    overflow-x: hidden !important;
  }
  .md--overflow-y-hidden {
    overflow-y: hidden !important;
  }
  .md--overflow-x-visible {
    overflow-x: visible !important;
  }
  .md--overflow-y-visible {
    overflow-y: visible !important;
  }
  .md--overflow-x-scroll {
    overflow-x: scroll !important;
  }
  .md--overflow-y-scroll {
    overflow-y: scroll !important;
  }
  .md--overflow-x-auto {
    overflow-x: auto !important;
  }
  .md--overflow-y-auto {
    overflow-y: auto !important;
  }
  .md--overflow-clip {
    overflow: clip !important;
  }
  .md--overflow-x-clip {
    overflow-x: clip !important;
  }
  .md--overflow-y-clip {
    overflow-y: clip !important;
  }
}

@media screen and (min-width: 1024px) {
  .lg--overflow-hidden {
    overflow: hidden !important;
  }
  .lg--overflow-visible {
    overflow: visible !important;
  }
  .lg--overflow-scroll {
    overflow: scroll !important;
  }
  .lg--overflow-auto {
    overflow: auto !important;
  }
  .lg--overflow-x-hidden {
    overflow-x: hidden !important;
  }
  .lg--overflow-y-hidden {
    overflow-y: hidden !important;
  }
  .lg--overflow-x-visible {
    overflow-x: visible !important;
  }
  .lg--overflow-y-visible {
    overflow-y: visible !important;
  }
  .lg--overflow-x-scroll {
    overflow-x: scroll !important;
  }
  .lg--overflow-y-scroll {
    overflow-y: scroll !important;
  }
  .lg--overflow-x-auto {
    overflow-x: auto !important;
  }
  .lg--overflow-y-auto {
    overflow-y: auto !important;
  }
  .lg--overflow-clip {
    overflow: clip !important;
  }
  .lg--overflow-x-clip {
    overflow-x: clip !important;
  }
  .lg--overflow-y-clip {
    overflow-y: clip !important;
  }
}

@media screen and (min-width: 1200px) {
  .xl--overflow-hidden {
    overflow: hidden !important;
  }
  .xl--overflow-visible {
    overflow: visible !important;
  }
  .xl--overflow-scroll {
    overflow: scroll !important;
  }
  .xl--overflow-auto {
    overflow: auto !important;
  }
  .xl--overflow-x-hidden {
    overflow-x: hidden !important;
  }
  .xl--overflow-y-hidden {
    overflow-y: hidden !important;
  }
  .xl--overflow-x-visible {
    overflow-x: visible !important;
  }
  .xl--overflow-y-visible {
    overflow-y: visible !important;
  }
  .xl--overflow-x-scroll {
    overflow-x: scroll !important;
  }
  .xl--overflow-y-scroll {
    overflow-y: scroll !important;
  }
  .xl--overflow-x-auto {
    overflow-x: auto !important;
  }
  .xl--overflow-y-auto {
    overflow-y: auto !important;
  }
  .xl--overflow-clip {
    overflow: clip !important;
  }
  .xl--overflow-x-clip {
    overflow-x: clip !important;
  }
  .xl--overflow-y-clip {
    overflow-y: clip !important;
  }
}