/* ============================================
基本設定
============================================ */

:root {
  --color-main: #013852;       /* メインカラー(濃紺) */
  --color-text: #333333;       /* 基本の文字色 */
  --color-bg: #f5f0eb;         /* ページ全体の背景色(ベージュ) */
  --color-sub-text: #e6e6e6;   /* CTAエリアの薄い文字色 */
}

html {
  scroll-behavior: smooth; /* スムーススクロール */
}

body {
  position: relative;
  color: var(--color-text);
  background-color: var(--color-bg);
  font-family: "Noto Sans JP", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: 0.05em;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  transition: opacity 0.3s;
}

/* コンテンツ幅の共通クラス */
.inner {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}


/* ============================================
見出し
============================================ */

.section-title {
  font-family: "Belanosima", sans-serif;
  font-size: 32px;
  font-weight: 600;
  color: var(--color-main);
  line-height: 1;
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 16px;
}

/* 見出し下の短い線 */
.section-title::after {
  content: "";
  display: block;
  width: 80px;
  height: 3px;
  background-color: var(--color-main);
  position: absolute;
  left: 0;
  bottom: 0;
}

/* 中央揃え */
.section-title.center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.section-title.center::after {
  left: 50%;
  transform: translateX(-50%);
}

/* CTAエリアなどの白い見出し */
.section-title.white {
  color: #fff;
}

.section-title.white::after {
  background-color: #fff;
}


/* ============================================
ヘッダー
============================================ */

.header {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  font-family: "Belanosima", sans-serif;
  font-size: 40px;
  font-weight: 600;
  line-height: 1;
  color: var(--color-main);
}


/* ============================================
TOPページのナビゲーション
============================================ */

.nav-top ul {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-top a {
  font-family: "Belanosima", sans-serif;
  font-size: 16px;
  font-weight: 600;
  color: #fff;
}

.nav-top a:hover {
  opacity: 0.6;
}


/* ============================================
下層ページのナビゲーション
============================================ */

.nav ul {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav a {
  font-family: "Belanosima", sans-serif;
  font-size: 16px;
  font-weight: 600;
  color: #013852;
}

.nav a:hover {
  opacity: 0.6;
}


/* ============================================
メインビジュアル
============================================ */

.hero {
  position: relative;
  overflow: hidden;
  padding: 280px 0 100px;
}

/* メインビジュアルの背景画像 */
.hero::before {
  content: "";
  position: absolute;
  top: -6%;
  left: -6%;
  width: 112%;
  height: 112%;

  background-image: url("../images/main-visual.jpg");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;

  z-index: 0;

  /* ゆっくり拡大・縮小 */
  animation: heroZoom 14s ease-in-out infinite alternate;
}

/* メインビジュアルのズームアニメーション */
@keyframes heroZoom {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.08);
  }

  100% {
    transform: scale(1.14);
  }
}

/* メインビジュアルの中身 */
.hero > .inner {
  position: relative;
  z-index: 1;
}

.hero-box {
  max-width: 620px;
  border-radius: 10px;
  padding: 30px 40px;
}

.hero-box h1 {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 34px;
  font-weight: 700;
  color: #fff;
  line-height: 1.7;
  margin-bottom: 32px;
}

.hero-box p {
  font-size: 16px;
  color: #fff;
  margin-bottom: 32px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}


/* ============================================
TOPページのボタン
============================================ */

.button-top {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 200px;
  border: 1px solid #fff;
  border-radius: 4px;
  color: #fff;
  font-family: "Belanosima", sans-serif;
  font-weight: 600;
  font-size: 16px;
  padding: 10px;
  transition: background-color 0.3s, color 0.3s;
}

.button-top:hover {
  background-color: #fff;
  color: var(--color-main);
}


/* ============================================
共通ボタン
============================================ */

.button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 200px;
  border: 1px solid #013852;
  border-radius: 4px;
  color: #013852;
  background-color: #fff;
  font-family: "Belanosima", sans-serif;
  font-weight: 600;
  font-size: 16px;
  padding: 10px;
  transition: background-color 0.3s, color 0.3s;
}

.button:hover {
  background-color: #013852;
  color: #fff;
}


/* ============================================
私たちについて
ABOUT・PROFILE
============================================ */

.about {
  padding: 120px 0;
}

.about-row {
  display: flex;
  align-items: center;
  gap: 40px;
}

/* PROFILEなど、画像とテキストを逆にする場合 */
.about-row.reverse {
  flex-direction: row-reverse;
}

.about-row + .about-row {
  margin-top: 80px;
}

.about-image {
  width: 50%;
}

.about-text {
  width: 50%;
}

.about-lead {
  font-weight: 700;
  font-size: 24px;
  color: var(--color-text);
  margin-bottom: 24px;
}


/* ============================================
スキル
============================================ */

.skills {
  padding: 120px 0;
  background-color: #fff;
}

.skills-list {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 40px;
  margin-top: 40px;
}

.skills-item {
  width: 310px;
  background-color: var(--color-bg);
  border-radius: 8px;
  padding: 30px 15px;
  text-align: center;
}

.skills-icon {
  width: 100px;
  height: 100px;
  margin: 0 auto 24px;
}

.skills-icon img {
  width: 100px;
  height: 100px;
}

.skills-item h3 {
  font-weight: 700;
  font-size: 16px;
  color: var(--color-main);
  margin-bottom: 24px;
}


/* ============================================
制作実績
============================================ */

.works {
  padding: 120px 0;
}

.works-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px 20px;
  margin-top: 40px;
}

.works-item {
  width: 380px;
}

.works-image {
  overflow: hidden;
  border-radius: 4px;
}

.works-item a .works-image img {
  width: 100%;
  transition: 0.4s;
}

.works-item a:hover .works-image img {
  transform: scale(1.1);
}

/* 準備中の画像枠 */
.works-blank {
  width: 100%;
  padding-top: 73.4%;
  background-color: #c4c4c4;
  border-radius: 4px;
}

.works-item h3 {
  font-weight: 700;
  font-size: 18px;
  color: var(--color-main);
  margin-top: 24px;
}

.works-item p {
  font-size: 16px;
  margin-top: 8px;
}


/* ============================================
iframe
============================================ */

iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  height: auto;
}


/* ============================================
次に向けて
CTAバナー
============================================ */

.cta {
  background-color: var(--color-main);
  padding: 60px 0;
}

.cta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.cta-text {
  width: 50%;
}

.cta-lead {
  font-weight: 700;
  font-size: 24px;
  color: #fff;
  margin-bottom: 24px;
}

.cta-text p {
  color: var(--color-sub-text);
}

.cta-image {
  width: 50%;
  border-radius: 8px;
}


/* ============================================
まとめ
============================================ */

.conclusion {
  padding: 120px 0;
  background-color: #fff;
  text-align: center;
}

.conclusion p {
  max-width: 800px;
  margin: 0 auto;
}

.conclusion p:not(:first-of-type) {
  margin-top: 16px;
}


/* ============================================
フッター
============================================ */

.footer {
  background-color: var(--color-main);
  padding: 20px 10px;
  text-align: center;
}

.footer p {
  font-family: "Belanosima", sans-serif;
  font-size: 14px;
  font-weight: 700;
  color: #fff;
}


/* ============================================
ページトップへ戻るボタン
============================================ */

.top-link {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 50px;
  z-index: 20;
}

.top-link img {
  width: 50px;
  height: 50px;
}

.top-link:hover {
  opacity: 0.8;
}


/* ============================================
下層ページ
============================================ */

/* 下層ページのヘッダー */
.lower-header {
  position: relative;
  background-color: #fff;
}

.lower-title {
  padding: 80px 0;
  background-color: var(--color-main);
  color: #fff;
  text-align: center;
}

.lower-title p {
  font-family: "Belanosima", sans-serif;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.15em;
  margin-bottom: 12px;
}

.lower-title h1 {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.5;
}

.work-detail {
  padding: 120px 0;
}

/* メイン画像 */
.work-main-image {
  width: 100%;
  max-width: 900px;
  margin: auto;
  padding: 40px;
}

/* WORK詳細ページのメイン画像（A4チラシ）に関しては小さくする */
.work-main-image-a4 {
  max-width: 700px;
}

.work-main-image img,
.work-point-image img {
  width: 100%;
  border-radius: 8px;
}

.work-introduction {
  max-width: 1000px;
  margin: 80px auto 0;
}

.work-heading,
.work-description {
  width: 100%;
}

.work-heading {
  margin-bottom: 30px;
}

.work-lead {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.8;
}

.work-description p + p {
  margin-top: 20px;
}

.work-information {
  max-width: 1000px;
  margin: 100px auto 0;
  padding: 50px;
  background-color: #fff;
  border-radius: 8px;
}

.work-information dl {
  margin-top: 10px;
}

.work-information dl div {
  display: flex;
  padding: 18px 0;
  border-bottom: 1px solid #dddddd;
}

.work-information dt {
  width: 30%;
  font-weight: 700;
  color: var(--color-main);
}

.work-information dd {
  width: 70%;
}

.work-point {
  display: flex;
  align-items: center;
  gap: 50px;
  margin-top: 100px;
}

.work-point-image,
.work-point-text {
  width: 50%;
}

.work-point-text .work-lead {
  margin-bottom: 20px;
}

.back-button {
  margin-top: 100px;
}

.back-button a {
  margin: 0 auto;
}


/* ============================================
制作プロセス・提案資料スライダー
============================================ */

.work-process {
  max-width: 1000px;
  margin: 100px auto 0;
}

.work-process .section-title {
  margin-bottom: 40px;
}


/* スライダー本体 */
.silver-slider {
  position: relative;
  width: 100%;
  max-width: 900px;
  margin: 0 auto;
}


/* ラジオボタンを非表示 */
.silver-slider > input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}


/* スライド画像 */
.silver-slider-images {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.silver-slider-item {
  display: none;
  width: 100%;
}

.silver-slider-item img {
  width: 100%;
  height: auto;
  border-radius: 8px;
}


/* 選択されたスライドだけ表示 */
#silver-slide01:checked ~ .silver-slider-images .silver-slide01,
#silver-slide02:checked ~ .silver-slider-images .silver-slide02,
#silver-slide03:checked ~ .silver-slider-images .silver-slide03,
#silver-slide04:checked ~ .silver-slider-images .silver-slide04,
#silver-slide05:checked ~ .silver-slider-images .silver-slide05,
#silver-slide06:checked ~ .silver-slider-images .silver-slide06,
#silver-slide07:checked ~ .silver-slider-images .silver-slide07,
#silver-slide08:checked ~ .silver-slider-images .silver-slide08 {
  display: block;
}


/* 前へ・次へボタン */
.silver-slider-arrows {
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  transform: translateY(-50%);
  pointer-events: none;
}

.silver-arrow {
  position: absolute;
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.9);
  color: var(--color-main);
  font-size: 24px;
  font-weight: 700;
  cursor: pointer;
  pointer-events: auto;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  transition: opacity 0.3s;
}

.silver-arrow:hover {
  opacity: 0.7;
}

.silver-arrow.silver-prev {
  left: -22px;
}

.silver-arrow.silver-next {
  right: -22px;
}


/* 現在のスライドに対応する矢印を表示 */
#silver-slide01:checked ~ .silver-slider-arrows .silver-prev01,
#silver-slide01:checked ~ .silver-slider-arrows .silver-next01,
#silver-slide02:checked ~ .silver-slider-arrows .silver-prev02,
#silver-slide02:checked ~ .silver-slider-arrows .silver-next02,
#silver-slide03:checked ~ .silver-slider-arrows .silver-prev03,
#silver-slide03:checked ~ .silver-slider-arrows .silver-next03,
#silver-slide04:checked ~ .silver-slider-arrows .silver-prev04,
#silver-slide04:checked ~ .silver-slider-arrows .silver-next04,
#silver-slide05:checked ~ .silver-slider-arrows .silver-prev05,
#silver-slide05:checked ~ .silver-slider-arrows .silver-next05,
#silver-slide06:checked ~ .silver-slider-arrows .silver-prev06,
#silver-slide06:checked ~ .silver-slider-arrows .silver-next06,
#silver-slide07:checked ~ .silver-slider-arrows .silver-prev07,
#silver-slide07:checked ~ .silver-slider-arrows .silver-next07,
#silver-slide08:checked ~ .silver-slider-arrows .silver-prev08,
#silver-slide08:checked ~ .silver-slider-arrows .silver-next08 {
  display: flex;
}


/* ページ番号 */
.silver-slider-page {
  margin-top: 18px;
  text-align: center;
  font-family: "Belanosima", sans-serif;
  font-size: 16px;
  color: var(--color-main);
}

.silver-slider-page span {
  display: none;
}

#silver-slide01:checked ~ .silver-slider-page .silver-page01,
#silver-slide02:checked ~ .silver-slider-page .silver-page02,
#silver-slide03:checked ~ .silver-slider-page .silver-page03,
#silver-slide04:checked ~ .silver-slider-page .silver-page04,
#silver-slide05:checked ~ .silver-slider-page .silver-page05,
#silver-slide06:checked ~ .silver-slider-page .silver-page06,
#silver-slide07:checked ~ .silver-slider-page .silver-page07,
#silver-slide08:checked ~ .silver-slider-page .silver-page08 {
  display: inline;
}


/* ドットナビゲーション */
.silver-slider-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 12px;
}

.silver-slider-dots label {
  display: block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background-color: #cccccc;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.3s;
}


/* 現在のページのドット */
#silver-slide01:checked ~ .silver-slider-dots label:nth-child(1),
#silver-slide02:checked ~ .silver-slider-dots label:nth-child(2),
#silver-slide03:checked ~ .silver-slider-dots label:nth-child(3),
#silver-slide04:checked ~ .silver-slider-dots label:nth-child(4),
#silver-slide05:checked ~ .silver-slider-dots label:nth-child(5),
#silver-slide06:checked ~ .silver-slider-dots label:nth-child(6),
#silver-slide07:checked ~ .silver-slider-dots label:nth-child(7),
#silver-slide08:checked ~ .silver-slider-dots label:nth-child(8) {
  background-color: var(--color-main);
  transform: scale(1.2);
}

/* ========================================
   楠木珈琲店 プレゼンスライダー
======================================== */

.coffee-slider {
  position: relative;
  width: 100%;
  max-width: 842px;
  margin: 100px auto 0;
}

/* ラジオボタンを非表示 */
.coffee-slider > input[type="radio"] {
  display: none;
}

/* スライド画像 */
.coffee-slider-images {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.coffee-slider-item {
  display: none;
  width: 100%;
}

.coffee-slider-item img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
}

/* 選択されたスライドを表示 */
#coffee-slide01:checked ~ .coffee-slider-images .coffee-slide01,
#coffee-slide02:checked ~ .coffee-slider-images .coffee-slide02,
#coffee-slide03:checked ~ .coffee-slider-images .coffee-slide03,
#coffee-slide04:checked ~ .coffee-slider-images .coffee-slide04,
#coffee-slide05:checked ~ .coffee-slider-images .coffee-slide05,
#coffee-slide06:checked ~ .coffee-slider-images .coffee-slide06 {
  display: block;
}


/* ========================================
   前へ・次へボタン
======================================== */

.coffee-slider-arrows {
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  transform: translateY(-50%);
  pointer-events: none;
}

.coffee-arrow {
  position: absolute;
  top: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.9);
  color: #013852;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  transform: translateY(-50%);
  pointer-events: auto;
  transition: opacity 0.3s ease;
}

.coffee-arrow:hover {
  opacity: 0.7;
}

.coffee-prev {
  left: -22px;
}

.coffee-next {
  right: -22px;
}


/* 現在のスライドに対応する矢印だけ表示 */
.coffee-slider-arrows .coffee-arrow {
  display: none;
}

#coffee-slide01:checked ~ .coffee-slider-arrows .coffee-prev01,
#coffee-slide01:checked ~ .coffee-slider-arrows .coffee-next01,
#coffee-slide02:checked ~ .coffee-slider-arrows .coffee-prev02,
#coffee-slide02:checked ~ .coffee-slider-arrows .coffee-next02,
#coffee-slide03:checked ~ .coffee-slider-arrows .coffee-prev03,
#coffee-slide03:checked ~ .coffee-slider-arrows .coffee-next03,
#coffee-slide04:checked ~ .coffee-slider-arrows .coffee-prev04,
#coffee-slide04:checked ~ .coffee-slider-arrows .coffee-next04,
#coffee-slide05:checked ~ .coffee-slider-arrows .coffee-prev05,
#coffee-slide05:checked ~ .coffee-slider-arrows .coffee-next05,
#coffee-slide06:checked ~ .coffee-slider-arrows .coffee-prev06,
#coffee-slide06:checked ~ .coffee-slider-arrows .coffee-next06 {
  display: flex;
}


/* ========================================
   ページ番号
======================================== */

.coffee-slider-page {
  margin-top: 15px;
  text-align: center;
  font-family: "Belanosima", sans-serif;
  font-size: 16px;
  letter-spacing: 0.08em;
}

.coffee-slider-page span {
  display: none;
}

#coffee-slide01:checked ~ .coffee-slider-page .coffee-page01,
#coffee-slide02:checked ~ .coffee-slider-page .coffee-page02,
#coffee-slide03:checked ~ .coffee-slider-page .coffee-page03,
#coffee-slide04:checked ~ .coffee-slider-page .coffee-page04,
#coffee-slide05:checked ~ .coffee-slider-page .coffee-page05,
#coffee-slide06:checked ~ .coffee-slider-page .coffee-page06 {
  display: inline;
}


/* ========================================
   ドットナビゲーション
======================================== */

.coffee-slider-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 15px;
}

.coffee-slider-dots label {
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #d0d0d0;
  cursor: pointer;
  transition: all 0.3s ease;
}

.coffee-slider-dots label:hover {
  transform: scale(1.2);
}

/* 現在のスライドのドット */
#coffee-slide01:checked ~ .coffee-slider-dots label:nth-child(1),
#coffee-slide02:checked ~ .coffee-slider-dots label:nth-child(2),
#coffee-slide03:checked ~ .coffee-slider-dots label:nth-child(3),
#coffee-slide04:checked ~ .coffee-slider-dots label:nth-child(4),
#coffee-slide05:checked ~ .coffee-slider-dots label:nth-child(5),
#coffee-slide06:checked ~ .coffee-slider-dots label:nth-child(6) {
  background-color: #013852;
  transform: scale(1.3);
}


/* ========================================
   スマートフォン
======================================== */

@media (max-width: 768px) {

  .coffee-slider {
    width: calc(100% - 30px);
    margin-top: 60px;
  }

  .coffee-arrow {
    width: 36px;
    height: 36px;
    font-size: 20px;
  }

  .coffee-prev {
    left: -18px;
  }

  .coffee-next {
    right: -18px;
  }

  .coffee-slider-page {
    margin-top: 12px;
    font-size: 14px;
  }

  .coffee-slider-dots {
    gap: 8px;
    margin-top: 12px;
  }

  .coffee-slider-dots label {
    width: 7px;
    height: 7px;
  }

}




@media screen and (max-width: 768px) {

  /* -----------------------------------------
  ヘッダー・ナビゲーション
  ----------------------------------------- */

  .header-inner {
    flex-direction: column;
    align-items: stretch;
    height: auto;
    padding: 16px 0;
    gap: 12px;
  }

  .logo {
    font-size: 20px;
    text-align: center;
  }

  /* TOPページのナビゲーション */
  .nav-top ul {
    width: 100%;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 16px;
  }

  .nav-top a {
    font-size: 12px;
  }

  /* 下層ページのナビゲーション */
  .nav ul {
    width: 100%;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px 16px;
  }

  .nav a {
    font-size: 12px;
  }


  /* -----------------------------------------
  メインビジュアル
  ----------------------------------------- */

  .hero {
    padding: 190px 0 60px;
  }

  .hero::before {
    top: -4%;
    left: -8%;
    width: 116%;
    height: 108%;
  }

  .hero-box {
    padding: 24px 20px;
  }

  .hero-box h1 {
    font-size: 26px;
    margin-bottom: 20px;
  }

  .hero-box p {
    font-size: 15px;
    margin-bottom: 20px;
  }


  /* -----------------------------------------
  TOPページのボタン
  ----------------------------------------- */

  .button-top {
    width: 140px;
    font-size: 14px;
  }


  /* -----------------------------------------
  共通ボタン
  ----------------------------------------- */

  .button {
    width: 140px;
    font-size: 14px;
  }


  /* -----------------------------------------
  私たちについて
  ----------------------------------------- */

  .about {
    padding: 50px 0;
  }

  .about-row,
  .about-row.reverse {
    flex-direction: column;
    gap: 24px;
  }

  .about-row + .about-row {
    margin-top: 50px;
  }

  .about-image,
  .about-text {
    width: 100%;
  }

  .about-lead {
    font-size: 20px;
  }


  /* -----------------------------------------
  スキル
  ----------------------------------------- */

  .skills {
    padding: 50px 0;
  }

  .skills-list {
    gap: 20px;
  }

  .skills-item {
    width: 100%;
  }


  /* -----------------------------------------
  制作実績
  ----------------------------------------- */

  .works {
    padding: 50px 0;
  }

  .works-item {
    width: 100%;
  }


  /* -----------------------------------------
  次に向けて
  ----------------------------------------- */

  .cta {
    padding: 50px 0;
  }

  .cta-row {
    flex-direction: column;
    gap: 24px;
  }

  .cta-text,
  .cta-image {
    width: 100%;
  }


  /* -----------------------------------------
  まとめ
  ----------------------------------------- */

  .conclusion {
    padding: 50px 0;
  }


  /* -----------------------------------------
  下層ページ
  ----------------------------------------- */

  .lower-title {
    padding: 50px 0;
  }

  .lower-title h1 {
    font-size: 26px;
  }

  .work-detail {
    padding: 50px 0;
  }

  /* スマートフォンではメイン画像の左右余白を小さくする */
  .work-main-image {
    padding: 20px 0;
  }

  .work-introduction {
    margin-top: 50px;
  }

  .work-heading {
    margin-bottom: 24px;
  }

  .work-lead {
    font-size: 18px;
  }

  .work-information {
    margin-top: 50px;
    padding: 30px 20px;
  }

  .work-information dl div {
    flex-direction: column;
    gap: 6px;
  }

  .work-information dt,
  .work-information dd {
    width: 100%;
  }

  .work-point {
    flex-direction: column;
    gap: 24px;
    margin-top: 50px;
  }

  .work-point-image,
  .work-point-text {
    width: 100%;
  }

  .back-button {
    margin-top: 50px;
  }

}



@media screen and (max-width: 768px) {

    /* 制作プロセス・提案資料スライダー */
  .work-process {
    margin-top: 70px;
  }

  .work-process .section-title {
    margin-bottom: 30px;
  }

  .silver-slider {
    width: calc(100% - 30px);
  }

  .silver-arrow {
    width: 36px;
    height: 36px;
    font-size: 20px;
  }

  .silver-arrow.silver-prev {
    left: -18px;
  }

  .silver-arrow.silver-next {
    right: -18px;
  }

  .silver-slider-page {
    margin-top: 14px;
    font-size: 14px;
  }

  .silver-slider-dots {
    gap: 8px;
    margin-top: 10px;
  }

  .silver-slider-dots label {
    width: 8px;
    height: 8px;
  }

}
  


/* ========================================
JavaScriptで動かすスクロールアニメーション
======================================== */

/*
HTMLで、ふわっと表示させたい要素に
「fade-up」クラスを追加します。

例：

<div class="fade-up">
  表示させたい内容
</div>

要素が画面内に入ると、
JavaScriptが自動的に「is-show」クラスを追加します。
*/

/* アニメーション前の状態 */
.fade-up {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

/* 表示状態 */
.fade-up.is-show {
  opacity: 1;
  transform: translateY(0);
}