.sf-eco {
  width: 100vw;
  max-width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  overflow-x: clip;
  --accent: #be185d;
  --ink: #1f1620;
  --mut: #6b5b66;
  --line: #e7dde4;
  --stage: #fdf2f7;
  color: #3a323c;
}
.sf-eco--app {
  --accent: #2a2a2e;
  --ink: #18181b;
  --mut: #6b6b72;
  --line: #e4e4e7;
  --stage: #f4f4f5;
}
.sf-eco__in { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }

.sf-eco__hero { background: var(--stage); }
.sf-eco__hero--img {
  background-color: var(--ink);
  background-size: cover;
  background-position: center;
}
.sf-eco__hero--img .sf-eco__eyebrow { color: #fff; opacity: .9; }
.sf-eco__hero--img .sf-eco__title { color: #fff; }
.sf-eco__hero--img .sf-eco__tagline { color: #fff; opacity: .92; }
.sf-eco__hero-in {
  text-align: center;
  max-width: 800px;
  padding-top: clamp(3.5rem, 9vw, 6.5rem);
  padding-bottom: clamp(3.5rem, 9vw, 6.5rem);
}
.sf-eco__eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.1rem;
}
.sf-eco__title {
  font-size: clamp(2.6rem, 7vw, 4.5rem);
  line-height: 1.02;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0 0 1.2rem;
}
.sf-eco__tagline {
  font-size: clamp(1.1rem, 2.4vw, 1.4rem);
  line-height: 1.55;
  color: var(--mut);
  margin: 0 auto 2rem;
  max-width: 44rem;
}

.sf-eco__what .sf-eco__in {
  padding-top: clamp(3rem, 7vw, 5rem);
  padding-bottom: clamp(2rem, 5vw, 3.5rem);
}
.sf-eco__what-in { max-width: 1100px; }
.sf-eco__h2 {
  font-size: clamp(1.7rem, 3.6vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin: 0 0 1.3rem;
}
.sf-eco__what-in p { font-size: 1.1rem; line-height: 1.7; color: #3a323c; margin: 0 0 1.1rem; }

.sf-eco__how .sf-eco__in {
  padding-top: clamp(1rem, 3vw, 2rem);
  padding-bottom: clamp(3rem, 7vw, 5rem);
}
.sf-eco__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.6rem;
  counter-reset: none;
}
.sf-eco__step-n {
  display: block;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: .5rem;
}
.sf-eco__step p { margin: 0; font-size: 1rem; line-height: 1.45; color: var(--ink); font-weight: 600; }

.sf-eco__features .sf-eco__in {
  padding-top: clamp(1rem, 3vw, 2rem);
  padding-bottom: clamp(3rem, 7vw, 5rem);
}
.sf-eco__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.8rem;
}
.sf-eco__card { border-top: 3px solid var(--accent); padding-top: 1rem; }
.sf-eco__card-t {
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 .5rem;
}
.sf-eco__card-p { font-size: .98rem; line-height: 1.6; color: #3a323c; margin: 0; }

.sf-eco__stats { background: var(--ink); color: #fff; }
.sf-eco__stats-in {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  text-align: center;
  padding-top: clamp(2.8rem, 6vw, 4rem);
  padding-bottom: clamp(2.8rem, 6vw, 4rem);
}
.sf-eco__stat { display: flex; flex-direction: column; gap: .35rem; }
.sf-eco__stat-v {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
  line-height: 1;
}
.sf-eco__stat-l { font-size: .92rem; color: rgba(255, 255, 255, .8); }

.sf-eco__join { background: var(--accent); color: #fff; }
.sf-eco__join .sf-eco__in {
  text-align: center;
  padding-top: clamp(3rem, 7vw, 4.5rem);
  padding-bottom: clamp(3rem, 7vw, 4.5rem);
}
.sf-eco__join h2 {
  color: #fff;
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 .7rem;
}
.sf-eco__join p { opacity: .95; max-width: 42rem; margin: 0 auto 1.8rem; font-size: 1.12rem; line-height: 1.6; }
.sf-eco__join .sf-pbtn--primary { background: #fff; color: var(--accent); }
.sf-eco__join .sf-pbtn--primary:hover { filter: brightness(.95); color: var(--accent); }

.sf-eco__notebar { background: #faf7f9; }
.sf-eco--app .sf-eco__notebar { background: var(--stage); }
.sf-eco__notebar .sf-eco__in {
  max-width: 820px;
  padding-top: clamp(1.6rem, 4vw, 2.4rem);
  padding-bottom: clamp(1.6rem, 4vw, 2.4rem);
}
.sf-eco__notebar p {
  margin: 0;
  border-left: 3px solid var(--accent);
  padding-left: 1rem;
  color: var(--mut);
  font-size: 1rem;
  line-height: 1.6;
}

.sf-eco__mapsec .sf-eco__in {
  padding-top: clamp(3rem, 7vw, 5rem);
  padding-bottom: clamp(3rem, 7vw, 5rem);
}
.sf-eco__addr {
  color: var(--mut);
  font-size: 1rem;
  margin: 0 0 1rem;
}
.sf-eco__mapframe { aspect-ratio: 4 / 3; max-width: 900px; }
.sf-eco__mapframe iframe { width: 100%; height: 100%; border: 0; display: block; }

.sf-eco__more .sf-eco__in {
  padding-top: clamp(3rem, 7vw, 5rem);
  padding-bottom: clamp(3rem, 7vw, 5rem);
}
.sf-eco__more-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.sf-eco__more-card {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  border: 1px solid var(--line);
  padding: 1.3rem 1.4rem;
  text-decoration: none;
  transition: border-color .2s ease;
}
.sf-eco__more-card:hover { border-color: var(--accent); }
.sf-eco__more-name { font-weight: 800; color: var(--ink); font-size: 1.1rem; }
.sf-eco__more-desc { color: var(--mut); font-size: .95rem; line-height: 1.5; }
.sf-eco__more-arrow { color: var(--accent); font-weight: 700; margin-top: .2rem; }

.sf-eco__cta { background: var(--ink); color: #fff; }
.sf-eco__cta .sf-eco__in {
  text-align: center;
  padding-top: clamp(3rem, 7vw, 5rem);
  padding-bottom: clamp(3rem, 7vw, 5rem);
}
.sf-eco__cta h2 {
  color: #fff;
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 .7rem;
}
.sf-eco__cta p { opacity: .9; max-width: 38rem; margin: 0 auto 1.8rem; font-size: 1.1rem; }
.sf-eco__cta .sf-pbtn--primary { background: #fff; color: var(--ink); }
.sf-eco__cta .sf-pbtn--primary:hover { filter: brightness(.94); color: var(--ink); }

@media (max-width: 860px) {
  .sf-eco__grid { grid-template-columns: repeat(2, 1fr); }
  .sf-eco__steps { grid-template-columns: repeat(2, 1fr); }
  .sf-eco__stats-in { grid-template-columns: repeat(2, 1fr); }
  .sf-eco__more-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .sf-eco__grid { grid-template-columns: 1fr; }
}