/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Hiragino Kaku Gothic ProN', 'Hiragino Sans', 'Meiryo', sans-serif;
  color: #2c2c2c;
  line-height: 1.7;
  background: #fff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  text-decoration: none;
  color: inherit;
}

/* ===== COLOR TOKENS ===== */
:root {
  --teal: #0891b2;
  --teal-d: #0c6e8c;
  --teal-l: #e0f2fe;
  --mint: #f0fdfa;
  --mint-m: #ccfbf1;
  --accent: #f59e0b;
  --accent-d: #d97706;
  --green: #059669;
  --gray-1: #f8fafc;
  --gray-2: #e2e8f0;
  --gray-3: #94a3b8;
  --dark: #1e293b;
  --white: #ffffff;
  --shadow: 0 4px 24px rgba(8, 145, 178, .10);
  --shadow-s: 0 2px 12px rgba(0, 0, 0, .07);
  --radius: 16px;
  --radius-s: 10px;
}

/* ===== UTILITY ===== */
.container {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 88px 0;
}

.section--mint {
  background: var(--mint);
}

.section--gray {
  background: var(--gray-1);
}

.section--teal {
  background: linear-gradient(135deg, #0c6e8c 0%, #0891b2 100%);
  color: #fff;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .06em;
  padding: 5px 14px;
  border-radius: 50px;
  background: var(--mint-m);
  color: var(--teal-d);
  margin-bottom: 14px;
}

.tag--amber {
  background: #fef3c7;
  color: var(--accent-d);
}

.tag--green {
  background: #d1fae5;
  color: #065f46;
}

.tag--white {
  background: rgba(255, 255, 255, .2);
  color: #fff;
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 800;
  line-height: 1.35;
  margin-bottom: 12px;
  color: var(--dark);
}

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

.section-sub {
  font-size: 1rem;
  color: var(--gray-3);
  margin-bottom: 52px;
}

.section-sub--white {
  color: rgba(255, 255, 255, .75);
}

.center {
  text-align: center;
}

/* ===== CTA BUTTON ===== */
.btn-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-top: 40px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 36px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: .04em;
  cursor: pointer;
  border: none;
  transition: transform .18s, box-shadow .18s;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 28px rgba(0, 0, 0, .18);
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent) 0%, #f97316 100%);
  color: #fff;
  box-shadow: 0 4px 18px rgba(245, 158, 11, .38);
}

.btn--outline {
  background: transparent;
  color: var(--teal);
  border: 2px solid var(--teal);
}

.btn--white {
  background: #fff;
  color: var(--dark);
  box-shadow: 0 4px 16px rgba(0, 0, 0, .12);
}

.btn--outline-white {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, .7);
}

.btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

/* ===== HEADER ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, .96);
  backdrop-filter: blur(12px);
  padding: 14px 0;
  border-bottom: 2px solid var(--mint-m);
  box-shadow: 0 2px 12px rgba(8, 145, 178, .08);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 24px;
}

.header__logo img {
  height: 36px;
  width: auto;
  display: block;
}

.header__nav {
  display: flex;
  gap: 24px;
  align-items: center;
  font-size: .85rem;
  color: #475569;
}

.header__nav a:hover {
  color: var(--teal);
  transition: .2s;
}

.header__cta {
  background: linear-gradient(135deg, var(--accent) 0%, #f97316 100%);
  color: #fff;
  padding: 9px 22px;
  border-radius: 50px;
  font-size: .85rem;
  font-weight: 700;
  white-space: nowrap;
  box-shadow: 0 3px 12px rgba(245, 158, 11, .35);
  transition: opacity .2s, transform .2s;
}

.header__cta:hover {
  opacity: .9;
  transform: translateY(-1px);
}

.header__right {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ===== HAMBURGER MENU ===== */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  cursor: pointer;
  border: none;
  background: none;
  padding: 6px;
  border-radius: 8px;
  transition: background .2s;
}

.hamburger:hover {
  background: var(--teal-l);
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
}

.hamburger.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.is-open span:nth-child(2) {
  opacity: 0;
}

.hamburger.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ドロワーメニュー */
.drawer {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
}

.drawer.is-open {
  display: block;
}

.drawer__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, .35);
}

.drawer__panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(280px, 80vw);
  height: 100%;
  background: #fff;
  padding: 24px 0;
  box-shadow: -4px 0 24px rgba(0, 0, 0, .15);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform .3s ease;
}

.drawer.is-open .drawer__panel {
  transform: translateX(0);
}

.drawer__close {
  align-self: flex-end;
  margin: 0 16px 16px;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--gray-3);
  line-height: 1;
}

.drawer__nav {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--gray-2);
}

.drawer__nav a {
  padding: 16px 28px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
  border-bottom: 1px solid var(--gray-2);
  transition: background .15s, color .15s;
}

.drawer__nav a:hover {
  background: var(--mint);
  color: var(--teal);
}

.drawer__cta {
  margin: 24px 28px 0;
  background: linear-gradient(135deg, var(--accent) 0%, #f97316 100%);
  color: #fff;
  padding: 14px;
  border-radius: 50px;
  font-size: .95rem;
  font-weight: 700;
  text-align: center;
  box-shadow: 0 4px 14px rgba(245, 158, 11, .35);
}

/* ===== HERO ===== */
.hero {
  background: linear-gradient(150deg, #f0fdfa 0%, #e0f2fe 60%, #f0fdfa 100%);
  padding: 80px 0 72px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 60% at 80% 50%, rgba(8, 145, 178, .07) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: var(--mint-m);
  opacity: .35;
  top: -100px;
  right: -100px;
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 24px;
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(8, 145, 178, .1);
  border: 1.5px solid rgba(8, 145, 178, .25);
  border-radius: 50px;
  padding: 6px 18px;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .07em;
  color: var(--teal-d);
  margin-bottom: 24px;
}

.hero__eyebrow::before {
  /* content: '●'; */
  color: var(--teal);
  font-size: .5rem;
}

.hero__title {
  font-size: clamp(1.8rem, 4.5vw, 3rem);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 20px;
  color: var(--dark);
}

.hero__title em {
  display: block;
  font-style: normal;
  color: var(--teal);
}

.hero__desc {
  font-size: 1.05rem;
  color: #475569;
  max-width: 600px;
  margin-bottom: 36px;
  line-height: 1.85;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 44px;
}

.hero__badge {
  background: #fff;
  border: 1.5px solid var(--mint-m);
  border-radius: var(--radius-s);
  padding: 12px 18px;
  font-size: .82rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 2px 10px rgba(8, 145, 178, .08);
  color: var(--dark);
}

.hero__badge .num {
  font-size: 1.4rem;
  color: var(--teal);
  font-weight: 900;
}

/* ===== PROBLEMS ===== */
.problem-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

@media (max-width: 600px) {
  .problem-list {
    grid-template-columns: 1fr;
  }
}

.problem-card {
  background: #fff;
  border: 1.5px solid #fecaca;
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow-s);
  transition: transform .2s;
}

.problem-card:hover {
  transform: translateY(-3px);
}

.problem-card__icon {
  font-size: 2.2rem;
  margin-bottom: 14px;
}

.problem-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: #dc2626;
  margin-bottom: 10px;
}

.problem-card p {
  font-size: .9rem;
  color: #64748b;
}

/* ===== SOLUTION ===== */
.solution-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.solution-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px 24px;
  box-shadow: var(--shadow);
  border-top: 4px solid var(--teal);
  transition: transform .2s, box-shadow .2s;
}

.solution-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(8, 145, 178, .15);
}

.solution-card__num {
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--teal);
  opacity: .18;
  line-height: 1;
  margin-bottom: 10px;
}

.solution-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--dark);
}

.solution-card p {
  font-size: .9rem;
  color: #64748b;
}

/* ===== SAFETY ===== */
.safety-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.safety-marks {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 24px;
}

.safety-mark {
  background: #fff;
  border-radius: var(--radius);
  padding: 22px 16px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1.5px solid var(--mint-m);
}

.safety-mark__label {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--teal);
  line-height: 1;
}

.safety-mark__sub {
  font-size: .72rem;
  color: var(--gray-3);
  margin-top: 6px;
}

.safety-list {
  list-style: none;
}

.safety-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 0;
  border-bottom: 1px solid var(--gray-2);
  font-size: .95rem;
  color: #334155;
}

.safety-list li::before {
  content: '✓';
  color: var(--green);
  font-weight: 900;
  margin-top: 2px;
  flex-shrink: 0;
}

.safety-hint {
  background: linear-gradient(135deg, var(--mint) 0%, var(--teal-l) 100%);
  border: 1.5px solid var(--mint-m);
  border-radius: var(--radius);
  padding: 24px;
  margin-top: 24px;
}

.safety-hint p {
  font-size: .9rem;
  color: var(--teal-d);
  line-height: 1.75;
}

/* ===== PRODUCTS ===== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 28px;
}

.product-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1.5px solid var(--gray-2);
  transition: transform .2s, box-shadow .2s;
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 40px rgba(8, 145, 178, .15);
}

.product-card__img {
  background: var(--mint);
  height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  overflow: hidden;
}

.product-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-card__body {
  padding: 22px 20px;
}

.product-card__tag {
  font-size: .72rem;
  font-weight: 700;
  color: var(--teal);
  background: var(--teal-l);
  padding: 4px 12px;
  border-radius: 50px;
  display: inline-block;
  margin-bottom: 12px;
}

.product-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.product-card p {
  font-size: .88rem;
  color: #64748b;
  line-height: 1.7;
}

.product-card__features {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 16px;
}

.feature-pill {
  font-size: .72rem;
  background: var(--gray-1);
  border: 1px solid var(--gray-2);
  padding: 4px 12px;
  border-radius: 50px;
  color: #475569;
}

/* ===== ACHIEVEMENTS ===== */
.achievement-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 52px;
}

.achievement-card {
  text-align: center;
  background: rgba(255, 255, 255, .15);
  border: 1.5px solid rgba(255, 255, 255, .25);
  border-radius: var(--radius);
  padding: 32px 20px;
}

.achievement-card .num {
  font-size: 2.8rem;
  font-weight: 900;
  color: #fde68a;
  line-height: 1;
  margin-bottom: 8px;
}

.achievement-card .unit {
  font-size: 1rem;
}

.achievement-card p {
  font-size: .85rem;
  color: rgba(255, 255, 255, .8);
  margin-top: 6px;
}

/* ===== CASES ===== */
.cases {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.case-item {
  background: rgba(255, 255, 255, .15);
  border: 1.5px solid rgba(255, 255, 255, .28);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 24px;
  backdrop-filter: blur(6px);
  transition: background .2s, transform .2s;
}

.case-item:hover {
  background: rgba(255, 255, 255, .22);
  transform: translateY(-2px);
}

.case-item__img {
  width: 200px;
  height: 130px;
  flex-shrink: 0;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
}

.case-item__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.case-item__img::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 12px;
  box-shadow: inset 0 0 18px 8px rgba(8, 100, 130, .5);
  pointer-events: none;
}

.case-item__body {
  flex: 1;
}

.case-item h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: #fff;
}

.case-item p {
  font-size: .88rem;
  color: rgba(255, 255, 255, .78);
  line-height: 1.7;
}

/* ===== WHY ===== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.why-card {
  text-align: center;
  padding: 36px 22px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1.5px solid var(--gray-2);
  transition: transform .2s, box-shadow .2s;
}

.why-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(8, 145, 178, .12);
}

.why-card__icon {
  font-size: 4.5rem;
  margin-bottom: 18px;
}

.why-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
}

.why-card p {
  font-size: .87rem;
  color: #64748b;
}

/* ===== FLOW ===== */
.flow-list {
  display: flex;
  flex-wrap: nowrap;
  gap: 12px;
  justify-content: center;
  align-items: stretch;
}

.flow-item {
  flex: 1 1 0;
  min-width: 0;
  text-align: center;
  position: relative;
  padding-top: 32px;
  display: flex;
  flex-direction: column;
}

.flow-item:not(:last-child)::after {
  content: '→';
  position: absolute;
  top: 50%;
  right: -10px;
  transform: translateY(-50%);
  color: var(--teal);
  font-size: 1.2rem;
  z-index: 1;
}

.flow-item__num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-d) 100%);
  color: #fff;
  font-weight: 900;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  box-shadow: 0 4px 14px rgba(8, 145, 178, .35);
  position: relative;
  z-index: 1;
  flex-shrink: 0;
}

.flow-item__card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 14px 24px;
  margin-top: -20px;
  box-shadow: 0 4px 20px rgba(8, 145, 178, .10);
  border: 1.5px solid var(--gray-2);
  flex: 1;
}

.flow-item h3 {
  font-size: .9rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
  margin-top: 12px;
}

.flow-item p {
  font-size: .8rem;
  color: #64748b;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 780px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1.5px solid var(--gray-2);
}

.faq-item details summary {
  cursor: pointer;
  font-size: 1rem;
  font-weight: 700;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  list-style: none;
  user-select: none;
  padding: 20px 0;
  color: var(--dark);
}

.faq-item details summary::-webkit-details-marker {
  display: none;
}

.faq-item details summary::before {
  content: 'Q';
  background: var(--teal-l);
  color: var(--teal);
  font-size: .9rem;
  font-weight: 900;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.faq-item details[open] summary::after {
  margin-left: auto;
  content: '▲';
  font-size: .8rem;
  color: var(--teal);
}

.faq-item details:not([open]) summary::after {
  margin-left: auto;
  content: '▼';
  font-size: .8rem;
  color: var(--gray-3);
}

.faq-item details .answer {
  padding: 4px 0 20px 42px;
  font-size: .95rem;
  color: #475569;
  line-height: 1.85;
}

.faq-item details .answer::before {
  content: 'A　';
  color: var(--green);
  font-weight: 700;
}

/* ===== CONTACT CTA ===== */
.cta-section {
  background: linear-gradient(135deg, var(--teal-d) 0%, #0284c7 100%);
  color: #fff;
  padding: 88px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 50% 100%, rgba(255, 255, 255, .06) 0%, transparent 70%);
}

.cta-section>.container {
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.4rem);
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 12px;
}

.cta-section p {
  font-size: 1rem;
  color: rgba(255, 255, 255, .82);
  margin-bottom: 40px;
}

.cta-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  max-width: 720px;
  margin: 0 auto;
}

.cta-card {
  background: rgba(255, 255, 255, .22);
  border: 2px solid rgba(255, 255, 255, .5);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, .18);
  transition: background .2s, transform .2s;
}

.cta-card:hover {
  background: rgba(255, 255, 255, .30);
  transform: translateY(-3px);
}

.cta-card__icon {
  font-size: 2.4rem;
  margin-bottom: 12px;
}

.cta-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.cta-card p {
  font-size: .85rem;
  color: rgba(255, 255, 255, .72);
  margin-bottom: 22px;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--dark);
  color: rgba(255, 255, 255, .6);
  padding: 44px 0 24px;
  font-size: .85rem;
}

.footer__inner {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 20px;
}

.footer__logo img {
  height: 32px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1);
  margin-bottom: 6px;
}

.footer__copy {
  width: 100%;
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, .12);
  margin-top: 24px;
  color: rgba(255, 255, 255, .4);
}

/* ===== RESPONSIVE ===== */
/* 中間ブレークポイント：988px以下で横溢れ防止 */
html,
body {
  overflow-x: hidden;
}

@media (max-width: 988px) {
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .flow-item {
    flex: 1 1 40%;
  }

  .flow-item:not(:last-child)::after {
    display: none;
  }
}

@media (max-width: 720px) {
  .header__nav {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .header__logo {
    max-width: 50%;
  }

  .header__logo img {
    max-width: 100%;
    height: auto;
  }

  .header__cta {
    padding: 8px 14px;
    font-size: .78rem;
  }

  .safety-cols {
    grid-template-columns: 1fr;
  }

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

  .flow-item {
    flex: 1 1 40%;
    max-width: none;
  }

  .flow-item:not(:last-child)::after {
    display: none;
  }

  .hero__title {
    font-size: 1.75rem;
  }

  .section {
    padding: 64px 0;
  }

  .solution-grid {
    grid-template-columns: 1fr;
  }

  .case-item {
    flex-direction: column;
  }

  .case-item__img {
    width: 100%;
    height: 160px;
  }

  /* ヒーロー CTAボタン：縦並び・同幅 */
  .btn-wrap {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-wrap .btn {
    width: 100%;
    justify-content: center;
    box-sizing: border-box;
  }

  /* ヒーロー バッジ：縦一列・同幅・テキスト中央 */
  .hero__badges {
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero__badge {
    width: 100%;
    box-sizing: border-box;
    justify-content: center;
    text-align: center;
  }

  /* 商品画像：上部が見切れないよう上揃えに */
  .product-card__img img {
    object-position: top center;
  }
}