.echons-page {
  --echons-ink: #292620;
  --echons-muted: #756d60;
  --echons-line: rgba(77, 65, 47, 0.14);
  --echons-paper: #f8f5ee;
  --echons-paper-strong: #eee7d9;
  --echons-accent: #7a6241;
}

.echons-nav {
  position: sticky;
  z-index: 90;
  top: var(--header-height);
  border-bottom: 1px solid var(--echons-line);
  background: rgba(250, 248, 243, 0.95);
  backdrop-filter: saturate(130%) blur(14px);
}

.echons-nav__inner {
  min-height: var(--product-nav-height);
  display: flex;
  align-items: center;
  gap: 20px;
}

.echons-nav__name {
  margin-right: auto;
  color: var(--echons-ink);
  font-size: 0.92rem;
  font-weight: 700;
  white-space: nowrap;
}

.echons-nav__links {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--echons-muted);
  font-size: 0.8rem;
}

.echons-nav__links a:hover {
  color: var(--echons-ink);
}

.echons-nav__action {
  min-height: 34px;
  padding: 0 14px;
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--echons-line);
  border-radius: 999px;
  background: #fff;
  color: var(--echons-ink);
  font-size: 0.8rem;
  font-weight: 680;
}

.echons-hero {
  padding: clamp(64px, 7vw, 92px) 0 clamp(62px, 7vw, 90px);
  overflow: hidden;
  background: linear-gradient(180deg, #fff, var(--echons-paper));
}

.echons-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(500px, 1.14fr);
  align-items: center;
  gap: clamp(44px, 6vw, 76px);
}

.echons-hero__copy h1 {
  color: var(--echons-ink);
  font-size: clamp(2.7rem, 5vw, 3.65rem);
}

.echons-hero__tagline {
  margin: 18px 0 12px;
  color: var(--echons-ink);
  font-family: Georgia, "Songti SC", "STSong", serif;
  font-size: clamp(1.5rem, 2.6vw, 2.1rem);
  line-height: 1.35;
}

.echons-hero__lead {
  margin-bottom: 14px;
  color: var(--echons-muted);
  font-size: 1.04rem;
  font-weight: 650;
}

.echons-hero__copy > p:last-of-type {
  max-width: 620px;
}

.echons-hero__visual img {
  width: 100%;
  filter: drop-shadow(0 20px 38px rgba(72, 61, 45, 0.11));
}

.echons-status {
  margin-top: 22px;
  padding: 14px 16px;
  border: 1px solid var(--echons-line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.76);
}

.echons-status p {
  margin: 9px 0 0;
  color: var(--echons-muted);
  font-size: 0.84rem;
}

.echons-reason__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(0, 1.22fr);
  gap: clamp(42px, 7vw, 92px);
}

.echons-reason h2 {
  max-width: 470px;
  color: var(--echons-ink);
}

.echons-reason__copy > p {
  color: var(--echons-muted);
  font-size: 1.05rem;
}

.echons-reason blockquote {
  margin: 32px 0 0;
  padding: 24px 0 4px 28px;
  border-left: 2px solid var(--echons-accent);
  color: var(--echons-ink);
  font-family: Georgia, "Songti SC", "STSong", serif;
  font-size: clamp(1.25rem, 2vw, 1.65rem);
  line-height: 1.55;
}

.echons-method {
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  list-style: none;
}

.echons-method li {
  min-height: 310px;
  padding: 26px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--echons-line);
  border-radius: var(--radius-md);
  background: #fff;
}

.echons-method span {
  color: var(--echons-accent);
  font-size: 0.72rem;
  font-weight: 760;
}

.echons-method h3 {
  margin: auto 0 14px;
  color: var(--echons-ink);
  font-size: 1.35rem;
}

.echons-method p {
  margin: 0;
  color: var(--echons-muted);
  font-size: 0.9rem;
}

.echons-boundary {
  margin: 18px 0 0;
  padding: 16px 18px;
  border-radius: 14px;
  background: var(--echons-paper-strong);
  color: var(--echons-muted);
  font-size: 0.88rem;
}

.echons-boundary strong {
  margin-right: 12px;
  color: var(--echons-ink);
}

.echons-principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.echons-principles article {
  padding: 28px;
  border-top: 1px solid var(--echons-line);
  background: linear-gradient(180deg, rgba(248, 245, 238, 0.65), transparent);
}

.echons-principles article > span {
  color: var(--echons-accent);
  font-size: 0.72rem;
  font-weight: 760;
}

.echons-principles h3 {
  margin: 54px 0 14px;
  color: var(--echons-ink);
  font-size: 1.3rem;
}

.echons-principles p {
  margin: 0;
  color: var(--echons-muted);
}

.echons-focus {
  padding-top: 0;
}

.echons-focus__card {
  padding: clamp(28px, 5vw, 52px);
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, 0.75fr);
  gap: clamp(40px, 6vw, 72px);
  border-radius: var(--radius-lg);
  background: var(--echons-ink);
  color: #fff;
}

.echons-focus h2 {
  margin-bottom: 18px;
  color: #fff;
}

.echons-focus p:not(.eyebrow) {
  margin-bottom: 0;
  color: #d2cec7;
}

.echons-focus ul {
  margin: 0;
  padding: 0;
  display: grid;
  align-content: center;
  gap: 10px;
  list-style: none;
}

.echons-focus li {
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  color: #f4f1eb;
  font-size: 0.92rem;
}

.echons-focus li::before {
  content: "·";
  margin-right: 9px;
  color: #c2a675;
}

.echons-future {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.echons-future article {
  padding: 26px;
  border: 1px solid var(--echons-line);
  border-radius: var(--radius-md);
  background: #fff;
}

.echons-future h3 {
  margin-bottom: 12px;
  color: var(--echons-ink);
  font-size: 1.22rem;
}

.echons-future p {
  margin: 0;
  color: var(--echons-muted);
}

.echons-directions {
  margin-top: 18px;
  padding: 24px 26px;
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  align-items: center;
  gap: 28px;
  border: 1px solid var(--echons-line);
  border-radius: var(--radius-md);
  background: var(--echons-paper-strong);
}

.echons-directions h3 {
  color: var(--echons-ink);
  font-family: Georgia, "Songti SC", "STSong", serif;
}

.echons-directions strong {
  color: var(--echons-ink);
}

.echons-directions p {
  margin: 4px 0 0;
  color: var(--echons-muted);
  font-size: 0.84rem;
}

.echons-record {
  padding: clamp(26px, 4vw, 42px);
  display: grid;
  grid-template-columns: minmax(180px, 0.42fr) minmax(0, 1.58fr);
  gap: clamp(36px, 6vw, 76px);
  border: 1px solid var(--echons-line);
  border-radius: var(--radius-lg);
  background: #fff;
  box-shadow: var(--shadow-card);
}

.echons-record time {
  display: block;
  margin-bottom: 14px;
  color: var(--echons-ink);
  font-size: 1.35rem;
  font-weight: 700;
}

.echons-record h3 {
  margin-bottom: 14px;
  color: var(--echons-ink);
}

.echons-record ul {
  margin: 20px 0 0;
  padding-left: 20px;
  color: var(--echons-muted);
}

.echons-record li + li {
  margin-top: 7px;
}

.echons-footer-cta {
  padding: clamp(72px, 8vw, 104px) 0;
  border-top: 1px solid var(--echons-line);
  text-align: center;
  background: var(--echons-paper);
}

.echons-footer-cta h2 {
  color: var(--echons-ink);
  font-family: Georgia, "Songti SC", "STSong", serif;
}

.echons-footer-cta p:not(.eyebrow) {
  max-width: 660px;
  margin: 18px auto 0;
  color: var(--echons-muted);
}

@media (max-width: 1050px) {
  .echons-hero__grid,
  .echons-reason__grid,
  .echons-focus__card {
    grid-template-columns: 1fr;
  }

  .echons-hero__visual {
    max-width: 820px;
  }

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

@media (max-width: 760px) {
  .echons-nav__links {
    display: none;
  }

  .echons-hero {
    padding: 48px 0;
  }

  .echons-hero__grid {
    gap: 36px;
  }

  .echons-method,
  .echons-principles,
  .echons-future,
  .echons-directions,
  .echons-record {
    grid-template-columns: 1fr;
  }

  .echons-method li {
    min-height: 0;
  }

  .echons-method h3,
  .echons-principles h3 {
    margin-top: 30px;
  }

  .echons-directions {
    gap: 20px;
  }
}

@media (max-width: 420px) {
  .echons-nav__name {
    max-width: 165px;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .echons-nav__action {
    padding-inline: 11px;
  }
}