/* =========================================================
   KAIZEN CREATE — style.css
   配色・余白・タイポはこの :root の変数で一括調整できます
   ========================================================= */

:root {
  /* ベースカラー */
  --color-bg: #ffffff;
  --color-bg-soft: #f7f8f9;      /* オフホワイト */
  --color-bg-gray: #eef0f2;      /* 薄いグレー */
  --color-border: #e4e7ea;

  /* 文字色 */
  --color-text: #1d2329;         /* 黒に近いダークグレー */
  --color-text-muted: #5b6670;
  --color-text-light: #8a939c;

  /* アクセントカラー（深いネイビー） */
  --color-navy: #1b2a4a;
  --color-navy-deep: #14213d;
  --color-navy-soft: #2c3e63;

  /* アクセント（落ち着いたゴールド） */
  --color-gold: #b8924f;
  --color-gold-soft: #cdab6d;

  /* くすみグリーン（補助） */
  --color-green: #4f7a6b;

  /* タイポグラフィ */
  --font-base: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
  --font-head: "Zen Kaku Gothic New", var(--font-base);

  /* レイアウト */
  --container: 1120px;
  --container-narrow: 760px;
  --radius: 14px;
  --radius-sm: 9px;
  --shadow-sm: 0 1px 2px rgba(20, 33, 61, 0.04), 0 2px 8px rgba(20, 33, 61, 0.05);
  --shadow-md: 0 6px 24px rgba(20, 33, 61, 0.08);
  --shadow-lg: 0 18px 50px rgba(20, 33, 61, 0.12);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ===== リセット ===== */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px; /* 固定ヘッダー分 */
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.85;
  font-size: 16px;
  font-feature-settings: "palt";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 { margin: 0; line-height: 1.4; font-family: var(--font-head); font-weight: 700; }
p { margin: 0; }
button { font-family: inherit; cursor: pointer; }

/* ===== レイアウト共通 ===== */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}
.container--narrow { max-width: var(--container-narrow); }

.section { padding: clamp(72px, 11vw, 132px) 0; }

.section__head { max-width: 720px; margin: 0 auto clamp(40px, 6vw, 64px); text-align: center; }
.section__eyebrow {
  font-size: 12px;
  letter-spacing: 0.22em;
  font-weight: 700;
  color: var(--color-gold);
  margin-bottom: 16px;
}
.section__title {
  font-size: clamp(24px, 4vw, 34px);
  letter-spacing: 0.02em;
  color: var(--color-navy);
}
.section__lead {
  margin-top: 20px;
  color: var(--color-text-muted);
  font-size: 15px;
}
.accent { color: var(--color-gold); }

/* ===== ボタン ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
  border: 1.5px solid transparent;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), box-shadow 0.25s var(--ease), color 0.25s var(--ease);
  white-space: nowrap;
}
.btn--primary {
  background: var(--color-navy);
  color: #fff;
  box-shadow: 0 6px 18px rgba(27, 42, 74, 0.22);
}
.btn--primary:hover { background: var(--color-navy-deep); transform: translateY(-2px); box-shadow: 0 10px 26px rgba(27, 42, 74, 0.3); }
.btn--ghost {
  background: transparent;
  color: var(--color-navy);
  border-color: var(--color-border);
}
.btn--ghost:hover { border-color: var(--color-navy); transform: translateY(-2px); }
.btn--lg { padding: 16px 34px; font-size: 16px; }
.btn--block { width: 100%; }

/* =========================================================
   ヘッダー
   ========================================================= */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.header.is-scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo { display: inline-flex; align-items: baseline; gap: 6px; font-family: var(--font-head); letter-spacing: 0.04em; }
.logo__main { font-weight: 700; font-size: 20px; color: var(--color-navy); }
.logo__sub { font-weight: 500; font-size: 20px; color: var(--color-gold); }

.nav__list { display: flex; gap: 30px; }
.nav__link {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--color-text-muted);
  position: relative;
  transition: color 0.2s var(--ease);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: -6px;
  width: 0; height: 2px;
  background: var(--color-gold);
  transition: width 0.3s var(--ease);
}
.nav__link:hover { color: var(--color-navy); }
.nav__link:hover::after { width: 100%; }

.header__cta { padding: 10px 22px; font-size: 14px; }

/* ハンバーガー */
.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  background: none; border: none;
  position: relative;
}
.nav-toggle span {
  position: absolute;
  left: 11px; right: 11px;
  height: 2px;
  background: var(--color-navy);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle span:nth-child(1) { top: 15px; }
.nav-toggle span:nth-child(2) { top: 21px; }
.nav-toggle span:nth-child(3) { top: 27px; }
.nav-toggle.is-active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.is-active span:nth-child(2) { opacity: 0; }
.nav-toggle.is-active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* =========================================================
   ファーストビュー
   ========================================================= */
.hero {
  position: relative;
  padding: clamp(120px, 18vw, 180px) 0 clamp(72px, 10vw, 110px);
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(27, 42, 74, 0.06), transparent 60%),
    linear-gradient(180deg, var(--color-bg-soft), var(--color-bg));
  overflow: hidden;
}
.hero__inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(36px, 6vw, 72px);
  align-items: center;
}
.hero__eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--color-gold);
  padding: 6px 14px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: #fff;
  margin-bottom: 24px;
}
.hero__title {
  font-size: clamp(30px, 5.4vw, 52px);
  line-height: 1.32;
  letter-spacing: 0.01em;
  color: var(--color-navy-deep);
}
.hero__lead {
  margin-top: 26px;
  font-size: clamp(15px, 2vw, 17px);
  color: var(--color-text);
}
.hero__note {
  margin-top: 18px;
  font-size: 13.5px;
  color: var(--color-text-muted);
  padding-left: 16px;
  border-left: 3px solid var(--color-gold);
}
.hero__actions {
  margin-top: 38px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ヒーロービジュアル */
.hero__visual {
  position: relative;
  min-height: 340px;
}
.hero__card {
  position: absolute;
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  padding: 22px;
  width: 64%;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.hero__card-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-text-light);
}
.hero__card-text { font-weight: 700; color: var(--color-navy); }
.hero__card--1 {
  top: 8%; left: 0;
  background: var(--color-bg-gray);
}
.hero__card--1 .hero__card-text { color: var(--color-text-light); }
.hero__card--2 {
  bottom: 6%; right: 0;
  border-top: 3px solid var(--color-gold);
}
.hero__badge {
  position: absolute;
  top: 44%; left: 50%;
  transform: translate(-50%, -50%);
  width: 96px; height: 96px;
  border-radius: 50%;
  background: var(--color-navy);
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 30px;
  line-height: 1;
  box-shadow: var(--shadow-md);
  z-index: 2;
}
.hero__badge span { font-size: 11px; font-weight: 500; letter-spacing: 0.06em; margin-top: 4px; color: var(--color-gold-soft); }

/* =========================================================
   課題提起
   ========================================================= */
.problems { background: var(--color-bg-soft); }
.problems__list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  max-width: 900px;
  margin-inline: auto;
}
.problems__item {
  position: relative;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 20px 22px 20px 52px;
  font-size: 15px;
  color: var(--color-text);
  box-shadow: var(--shadow-sm);
}
.problems__item::before {
  content: "?";
  position: absolute;
  left: 18px; top: 50%;
  transform: translateY(-50%);
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--color-navy);
  color: #fff;
  font-weight: 700;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* =========================================================
   カード共通
   ========================================================= */
.cards { display: grid; gap: 24px; }
.cards--4 { grid-template-columns: repeat(4, 1fr); }
.cards--3 { grid-template-columns: repeat(3, 1fr); }

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 26px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: #d4d9de; }
.card__num {
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-gold);
  letter-spacing: 0.08em;
}
.card__title { margin: 14px 0 12px; font-size: 17px; color: var(--color-navy); }
.card__text { font-size: 14px; color: var(--color-text-muted); line-height: 1.8; }

/* =========================================================
   実績
   ========================================================= */
.work {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: clamp(24px, 4vw, 44px);
  box-shadow: var(--shadow-md);
}
.work__header { margin-bottom: 30px; }
.work__title { font-size: 22px; color: var(--color-navy); }
.work__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.work__tags li {
  font-size: 12.5px;
  color: var(--color-navy-soft);
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 5px 13px;
}

.work__compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 18px;
}
.work__figure {
  position: relative;
  margin: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg-gray);
}
.work__figure img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.work__badge {
  position: absolute;
  top: 12px; left: 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 5px 12px;
  border-radius: 999px;
  color: #fff;
  z-index: 1;
}
.work__badge--before { background: var(--color-text-light); }
.work__badge--after { background: var(--color-gold); }
.work__arrow {
  font-size: 28px;
  color: var(--color-navy);
  font-weight: 700;
}

.work__app { margin-top: 36px; padding-top: 32px; border-top: 1px dashed var(--color-border); }
.work__app-title { font-size: 16px; color: var(--color-navy); margin-bottom: 18px; }
.work__app-title::before { content: "▮ "; color: var(--color-gold); }
.work__app-shots { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.work__figure--app img { aspect-ratio: 16 / 10; }

/* =========================================================
   強み
   ========================================================= */
.strengths { background: var(--color-bg-soft); }
.strength {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.strength:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.strength__icon {
  width: 54px; height: 54px;
  border-radius: 13px;
  background: linear-gradient(145deg, var(--color-navy), var(--color-navy-soft));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 20px;
  box-shadow: 0 6px 16px rgba(27, 42, 74, 0.2);
}
.strength__title { font-size: 17px; color: var(--color-navy); margin-bottom: 10px; }
.strength__text { font-size: 14px; color: var(--color-text-muted); }

/* =========================================================
   料金
   ========================================================= */
.plans { align-items: stretch; }
.plan {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 30px 26px;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.plan:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.plan--featured {
  border-color: var(--color-gold);
  box-shadow: 0 12px 34px rgba(184, 146, 79, 0.18);
}
.plan__ribbon {
  position: absolute;
  top: -13px; left: 50%;
  transform: translateX(-50%);
  background: var(--color-gold);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 5px 16px;
  border-radius: 999px;
  white-space: nowrap;
}
.plan__name { font-size: 16px; color: var(--color-navy); min-height: 3em; display: flex; align-items: center; }
.plan__price {
  margin: 14px 0 22px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-navy-deep);
  font-family: var(--font-head);
}
.plan__from { font-size: 32px; font-weight: 700; }
.plan__unit { font-size: 15px; margin-left: 2px; color: var(--color-text-muted); }
.plan__features { display: flex; flex-direction: column; gap: 11px; }
.plan__features li {
  position: relative;
  padding-left: 24px;
  font-size: 14px;
  color: var(--color-text-muted);
}
.plan__features li::before {
  content: "";
  position: absolute;
  left: 4px; top: 9px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-gold);
}
.pricing__note {
  text-align: center;
  margin-top: 32px;
  font-size: 13px;
  color: var(--color-text-light);
}

/* =========================================================
   制作の流れ
   ========================================================= */
.flow__list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  counter-reset: flow;
}
.flow__item {
  position: relative;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 30px 26px 26px;
}
.flow__num {
  position: absolute;
  top: -16px; left: 26px;
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--color-navy);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  box-shadow: var(--shadow-sm);
}
.flow__title { font-size: 16px; color: var(--color-navy); margin: 10px 0 8px; }
.flow__text { font-size: 14px; color: var(--color-text-muted); }

/* =========================================================
   プロフィール
   ========================================================= */
.profile { background: var(--color-navy-deep); color: #fff; }
.profile__inner {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: clamp(32px, 6vw, 64px);
  align-items: center;
}
.profile__photo {
  width: 200px; height: 200px;
  margin-inline: auto;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.35);
}
.profile__photo img { width: 100%; height: 100%; object-fit: cover; }
.profile .section__eyebrow { color: var(--color-gold-soft); }
.profile .section__title { color: #fff; }
.profile__name {
  font-family: var(--font-head);
  font-size: 26px;
  font-weight: 700;
  margin: 18px 0 22px;
  display: flex;
  align-items: baseline;
  gap: 14px;
  flex-wrap: wrap;
}
.profile__role { font-size: 13px; font-weight: 500; color: var(--color-gold-soft); letter-spacing: 0.04em; }
.profile__text { color: rgba(255, 255, 255, 0.78); font-size: 15px; margin-bottom: 14px; }

/* =========================================================
   FAQ
   ========================================================= */
.faq__list { display: flex; flex-direction: column; gap: 12px; }
.faq__item {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.faq__q {
  position: relative;
  list-style: none;
  cursor: pointer;
  padding: 20px 56px 20px 24px;
  font-weight: 700;
  font-size: 15.5px;
  color: var(--color-navy);
  transition: background 0.2s var(--ease);
}
.faq__q::-webkit-details-marker { display: none; }
.faq__q::after {
  content: "";
  position: absolute;
  right: 24px; top: 50%;
  width: 11px; height: 11px;
  border-right: 2px solid var(--color-gold);
  border-bottom: 2px solid var(--color-gold);
  transform: translateY(-65%) rotate(45deg);
  transition: transform 0.3s var(--ease);
}
.faq__item[open] .faq__q::after { transform: translateY(-30%) rotate(-135deg); }
.faq__q:hover { background: var(--color-bg-soft); }
.faq__a { padding: 0 24px 22px; }
.faq__a p { font-size: 14.5px; color: var(--color-text-muted); }

/* =========================================================
   お問い合わせ
   ========================================================= */
.contact { background: var(--color-bg-soft); }
.form {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: clamp(28px, 5vw, 48px);
  box-shadow: var(--shadow-md);
}
.form__row { margin-bottom: 24px; }
.form__label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 9px;
}
.form__req {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  background: var(--color-gold);
  border-radius: 4px;
  padding: 2px 7px;
  margin-left: 8px;
  letter-spacing: 0.04em;
  vertical-align: middle;
}
.form__input {
  width: 100%;
  font-family: inherit;
  font-size: 15px;
  color: var(--color-text);
  padding: 13px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-soft);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.form__input::placeholder { color: var(--color-text-light); }
.form__input:focus {
  outline: none;
  border-color: var(--color-navy);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(27, 42, 74, 0.08);
}
.form__textarea { resize: vertical; min-height: 130px; }
.form__submit { margin-top: 32px; }
.form__notice {
  margin-top: 16px;
  text-align: center;
  font-size: 14px;
  color: var(--color-green);
  font-weight: 700;
  min-height: 1em;
}

/* =========================================================
   フッター
   ========================================================= */
.footer { background: var(--color-navy-deep); color: rgba(255, 255, 255, 0.8); padding: 56px 0 28px; }
.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 32px;
  flex-wrap: wrap;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.logo--footer .logo__main { color: #fff; }
.footer__tagline { margin-top: 12px; font-size: 13px; color: rgba(255, 255, 255, 0.6); }
.footer__nav ul { display: flex; flex-wrap: wrap; gap: 14px 26px; }
.footer__nav a { font-size: 14px; color: rgba(255, 255, 255, 0.75); transition: color 0.2s var(--ease); }
.footer__nav a:hover { color: var(--color-gold-soft); }
.footer__copy { text-align: center; margin-top: 26px; font-size: 12px; color: rgba(255, 255, 255, 0.5); letter-spacing: 0.04em; }

/* =========================================================
   スクロールアニメーション（控えめ）
   ========================================================= */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

/* =========================================================
   レスポンシブ
   ========================================================= */
@media (max-width: 980px) {
  .cards--4 { grid-template-columns: repeat(2, 1fr); }
  .flow__list { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 820px) {
  /* ヘッダー：モバイルメニュー */
  .nav-toggle { display: block; z-index: 110; }
  .header__cta { display: none; }
  .nav {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(78vw, 320px);
    background: #fff;
    box-shadow: -10px 0 40px rgba(20, 33, 61, 0.12);
    transform: translateX(100%);
    transition: transform 0.35s var(--ease);
    padding: 96px 32px 40px;
  }
  .nav.is-open { transform: translateX(0); }
  .nav__list { flex-direction: column; gap: 4px; }
  .nav__link { display: block; padding: 14px 0; font-size: 16px; border-bottom: 1px solid var(--color-border); }
  .nav__link::after { display: none; }

  /* ヒーロー */
  .hero__inner { grid-template-columns: 1fr; }
  .hero__visual { min-height: 280px; max-width: 420px; margin-inline: auto; width: 100%; order: -1; }
  .hero__actions .btn { flex: 1 1 auto; }

  /* プロフィール */
  .profile__inner { grid-template-columns: 1fr; text-align: center; }
  .profile__name { justify-content: center; }
  .profile__text { text-align: left; }
}

@media (max-width: 620px) {
  body { font-size: 15px; }
  .cards--4, .cards--3 { grid-template-columns: 1fr; }
  .problems__list { grid-template-columns: 1fr; }
  .flow__list { grid-template-columns: 1fr; }

  /* 実績：縦並び */
  .work__compare { grid-template-columns: 1fr; }
  .work__arrow { transform: rotate(90deg); justify-self: center; }
  .work__app-shots { grid-template-columns: 1fr; }
}

/* スクロールバー軽微調整（任意） */
::selection { background: rgba(184, 146, 79, 0.22); }