:root {
  --bg: #efe4d2;
  --bg-soft: rgba(255, 249, 241, 0.78);
  --ink: #1d232b;
  --ink-soft: rgba(29, 35, 43, 0.7);
  --line: rgba(48, 40, 30, 0.12);
  --accent: #8f5b38;
  --accent-soft: rgba(143, 91, 56, 0.14);
  --shadow: rgba(67, 52, 37, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at 12% 14%, rgba(152, 120, 92, 0.16), transparent 26%),
    radial-gradient(circle at 88% 12%, rgba(109, 137, 142, 0.16), transparent 20%),
    linear-gradient(180deg, #f5ebde 0%, #efe4d2 42%, #f6efe6 100%);
}

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

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
}

.hero__wash {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.wash,
.ring {
  position: absolute;
  border-radius: 999px;
}

.wash {
  filter: blur(28px);
  opacity: 0.9;
  transition: transform 360ms ease;
}

.wash--one {
  width: 40vw;
  height: 40vw;
  left: -10vw;
  top: 15vh;
  background: radial-gradient(circle, rgba(120, 137, 141, 0.26), transparent 66%);
}

.wash--two {
  width: 34vw;
  height: 34vw;
  right: -8vw;
  bottom: 8vh;
  background: radial-gradient(circle, rgba(168, 120, 80, 0.22), transparent 68%);
}

.ring {
  border: 1px solid rgba(50, 38, 26, 0.12);
  opacity: 0.7;
}

.ring--one {
  width: 56vw;
  height: 56vw;
  right: -14vw;
  top: 10vh;
}

.ring--two {
  width: 46vw;
  height: 46vw;
  left: -12vw;
  bottom: -2vh;
}

.topbar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 26px 0 0;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
}

.brand__title {
  font-size: 23px;
  letter-spacing: 0.08em;
  font-family: "STSong", "Songti SC", "Noto Serif SC", serif;
}

.brand__sub {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(29, 35, 43, 0.5);
}

.nav-links {
  display: flex;
  gap: 26px;
  font-size: 14px;
  color: var(--ink-soft);
}

.nav-links a {
  position: relative;
  padding-bottom: 4px;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: rgba(29, 35, 43, 0.46);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 220ms ease;
}

.nav-links a:hover::after {
  transform: scaleX(1);
}

.hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
  gap: 56px;
  align-items: center;
  min-height: calc(100svh - 90px);
  padding: 56px 0 84px;
}

.hero__copy {
  max-width: 650px;
}

.hero__eyebrow {
  margin: 0 0 18px;
  font-size: 12px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(29, 35, 43, 0.48);
}

.hero h1 {
  margin: 0;
  font-size: clamp(54px, 10vw, 118px);
  line-height: 0.96;
  letter-spacing: 0.05em;
  font-family: "STSong", "Songti SC", "Noto Serif SC", serif;
}

.hero__lead {
  margin: 28px 0 0;
  max-width: 620px;
  font-size: clamp(19px, 2.2vw, 25px);
  line-height: 1.9;
  color: var(--ink-soft);
}

.hero__actions {
  display: flex;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 144px;
  height: 52px;
  padding: 0 26px;
  border-radius: 999px;
  font-size: 15px;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button--primary {
  background: linear-gradient(135deg, #a56f4b, #7d4e30);
  color: #fff7ef;
  box-shadow: 0 16px 30px rgba(125, 78, 48, 0.18);
}

.button--ghost {
  border: 1px solid rgba(29, 35, 43, 0.14);
  background: rgba(255, 251, 246, 0.54);
}

.hero__note {
  margin: 26px 0 0;
  max-width: 520px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.8;
  color: rgba(29, 35, 43, 0.58);
}

.hero__panel {
  padding: 26px 24px;
  border: 1px solid rgba(50, 38, 26, 0.1);
  border-radius: 28px;
  background: rgba(255, 251, 246, 0.58);
  backdrop-filter: blur(10px);
  box-shadow: 0 24px 48px var(--shadow);
}

.hero__panel-label {
  margin: 0 0 18px;
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(29, 35, 43, 0.5);
}

.hero__panel-item {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 16px;
  padding: 18px 0;
  border-top: 1px solid rgba(50, 38, 26, 0.08);
}

.hero__panel-item:first-of-type {
  border-top: 0;
  padding-top: 6px;
}

.hero__panel-index {
  display: inline-flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 4px;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: rgba(143, 91, 56, 0.78);
}

.hero__panel-item h2 {
  margin: 0;
  font-size: 24px;
  font-family: "STSong", "Songti SC", "Noto Serif SC", serif;
}

.hero__panel-item p {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.section {
  padding: 96px 0;
  border-top: 1px solid var(--line);
}

.section__grid {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 28px;
}

.section__label {
  padding-top: 8px;
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(29, 35, 43, 0.48);
}

.section__content h2 {
  margin: 0;
  max-width: 860px;
  font-size: clamp(30px, 4.6vw, 56px);
  line-height: 1.18;
  font-family: "STSong", "Songti SC", "Noto Serif SC", serif;
}

.section__content p {
  max-width: 760px;
  margin: 18px 0 0;
  font-size: 18px;
  line-height: 1.95;
  color: var(--ink-soft);
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 34px;
}

.principle {
  padding-top: 18px;
  border-top: 1px solid rgba(50, 38, 26, 0.12);
}

.principle__title {
  margin: 0;
  font-size: 16px;
  color: var(--ink);
}

.principle p:last-child {
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.85;
}

.works-intro p {
  max-width: 660px;
}

.works-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 34px;
}

.work-card {
  min-height: 280px;
  padding: 24px;
  border-radius: 28px;
  border: 1px solid rgba(50, 38, 26, 0.1);
  background:
    linear-gradient(180deg, rgba(255, 251, 246, 0.64), rgba(255, 251, 246, 0.38)),
    rgba(255, 255, 255, 0.28);
  box-shadow: 0 18px 36px var(--shadow);
}

.work-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.work-card__index {
  font-size: 12px;
  letter-spacing: 0.22em;
  color: rgba(143, 91, 56, 0.8);
}

.work-card__tag {
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: rgba(102, 63, 37, 0.92);
}

.work-card h3 {
  margin: 28px 0 0;
  font-size: 30px;
  font-family: "STSong", "Songti SC", "Noto Serif SC", serif;
}

.work-card p {
  margin-top: 14px;
  font-size: 16px;
  line-height: 1.9;
}

.journal {
  display: grid;
  gap: 0;
  margin-top: 6px;
}

.journal__item {
  padding: 28px 0;
  border-top: 1px solid rgba(50, 38, 26, 0.12);
}

.journal__item:first-child {
  border-top: 0;
  padding-top: 0;
}

.journal__date {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: rgba(143, 91, 56, 0.82);
  text-transform: uppercase;
}

.journal__item h3 {
  margin: 12px 0 0;
  font-size: 32px;
  font-family: "STSong", "Songti SC", "Noto Serif SC", serif;
}

.visit-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 8px;
}

.visit-block {
  padding: 26px 24px;
  border-top: 1px solid rgba(50, 38, 26, 0.12);
  background: rgba(255, 251, 246, 0.34);
}

.visit-block__label {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.16em;
  color: rgba(29, 35, 43, 0.52);
  text-transform: uppercase;
}

.visit-block__value {
  margin: 16px 0 0;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.1;
  font-family: "STSong", "Songti SC", "Noto Serif SC", serif;
  color: var(--ink);
}

.visit-block__value--small {
  font-size: clamp(22px, 3vw, 30px);
}

.visit-block__text {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.footer {
  padding: 34px 0 52px;
  border-top: 1px solid var(--line);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  align-items: end;
}

.footer__title {
  margin: 0;
  font-size: 18px;
  font-family: "STSong", "Songti SC", "Noto Serif SC", serif;
}

.footer__text {
  margin: 12px 0 0;
  max-width: 460px;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(29, 35, 43, 0.62);
}

.footer__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 18px;
  font-size: 13px;
  color: rgba(29, 35, 43, 0.58);
}

.footer__meta a:hover {
  color: var(--accent);
}

.reveal-target {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 540ms ease, transform 540ms ease;
}

.reveal-target.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1024px) {
  .hero__inner,
  .section__grid,
  .works-list,
  .visit-grid,
  .principles {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero__inner {
    min-height: auto;
    padding: 40px 0 74px;
  }

  .section {
    padding: 82px 0;
  }

  .section__label {
    padding-top: 0;
  }

  .works-list,
  .visit-grid,
  .principles {
    gap: 18px;
  }
}

@media (max-width: 720px) {
  .container {
    width: min(100% - 28px, 1120px);
  }

  .topbar {
    align-items: flex-start;
    gap: 18px;
    flex-direction: column;
    padding-top: 22px;
  }

  .nav-links {
    width: 100%;
    gap: 18px;
    flex-wrap: wrap;
    font-size: 13px;
  }

  .hero__lead,
  .section__content p {
    font-size: 16px;
  }

  .button {
    min-width: 0;
    flex: 1;
  }

  .hero__actions {
    width: 100%;
  }

  .hero__panel {
    padding: 22px 18px;
  }

  .hero__panel-item {
    grid-template-columns: 40px 1fr;
  }

  .work-card,
  .visit-block {
    min-height: 0;
    padding: 20px 18px;
  }

  .journal__item h3 {
    font-size: 26px;
  }

  .footer__inner,
  .footer__meta {
    align-items: flex-start;
    justify-content: flex-start;
    flex-direction: column;
  }
}