:root {
  --ink: #3a2a1f;
  --ink-soft: #665448;
  --paper: #f7f0e3;
  --paper-deep: #efe4d0;
  --accent: #d29558;
  --accent-deep: #a66d3a;
  --line: rgba(72, 46, 28, 0.22);
  --hero-overlay: linear-gradient(
    118deg,
    rgba(131, 102, 72, 0.16) 0%,
    rgba(214, 183, 144, 0.12) 48%,
    rgba(248, 239, 223, 0.06) 100%
  );
  --content-max: 1120px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Manrope", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(225, 204, 171, 0.22), transparent 26%),
    radial-gradient(circle at right 18%, rgba(181, 208, 198, 0.18), transparent 24%),
    linear-gradient(180deg, #faf5ea 0%, #f5ecdd 42%, #efe1cb 100%);
  color: var(--ink);
  line-height: 1.6;
}

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

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 30;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.2rem;
  padding: 1rem 4vw;
  transition: background-color 260ms ease, backdrop-filter 260ms ease;
}

.site-header.is-scrolled {
  background: rgba(247, 240, 227, 0.86);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(83, 57, 37, 0.12);
}

.brand-wrap {
  color: #4a3426;
  line-height: 1.05;
}

.brand-cn {
  margin: 0;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(1.15rem, 1.6vw, 1.42rem);
  letter-spacing: 0.12em;
}

.brand-en {
  margin: 0.3rem 0 0;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.78;
}

.menu-toggle {
  display: none;
  border: 1px solid rgba(74, 52, 38, 0.25);
  background: rgba(247, 240, 227, 0.9);
  color: #4a3426;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  font-weight: 700;
}

.site-nav {
  display: flex;
  gap: 1.2rem;
}

.site-nav a {
  color: #4f3929;
  font-size: 0.87rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding-bottom: 0.15rem;
  border-bottom: 1px solid transparent;
  transition: border-color 220ms ease, opacity 220ms ease;
}

.site-nav a:hover {
  opacity: 0.78;
  border-color: rgba(79, 57, 41, 0.5);
}

.hero {
  position: relative;
  min-height: 100svh;
  color: var(--ink);
  display: grid;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: var(--hero-overlay),
    radial-gradient(circle at 12% 18%, rgba(181, 210, 199, 0.22), transparent 24%),
    radial-gradient(circle at 83% 28%, rgba(244, 210, 176, 0.24), transparent 22%),
    linear-gradient(180deg, rgba(255, 250, 242, 0.92), rgba(245, 232, 210, 0.82));
  transform: scale(1.02);
  will-change: transform;
}

.hero-shell {
  position: relative;
  z-index: 1;
  width: min(100% - 8vw, var(--content-max));
  margin: 5.8rem auto 2.2rem;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 0.95fr);
  gap: 1.5rem;
  align-items: center;
}

.hero-content {
  padding: 2rem 0.2rem 2rem 0;
}

.eyebrow,
.section-kicker {
  margin: 0;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  font-size: 0.75rem;
  font-weight: 700;
  opacity: 0.9;
}

.hero h1 {
  margin: 0.7rem 0 1rem;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(2rem, 5.4vw, 4.2rem);
  line-height: 1.15;
  max-width: 11.5em;
}

.hero-copy {
  margin: 0;
  font-size: clamp(1rem, 1.35vw, 1.2rem);
  max-width: 35em;
  color: var(--ink-soft);
}

.hero-cta {
  margin-top: 1.7rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0.82rem 1.5rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  transition: transform 240ms ease, background-color 240ms ease, color 240ms ease,
    border-color 240ms ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--accent);
  border: 1px solid transparent;
  color: #fff8f0;
}

.btn-primary:hover {
  background: var(--accent-deep);
}

.btn-ghost {
  border: 1px solid rgba(74, 52, 38, 0.22);
  color: var(--ink);
  background: rgba(255, 250, 240, 0.52);
}

.hero-meta {
  margin-top: 1.45rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1.1rem;
  font-size: 0.82rem;
  color: var(--ink-soft);
}

.hero-meta p {
  margin: 0;
  padding-right: 1rem;
  border-right: 1px solid rgba(74, 52, 38, 0.18);
}

.hero-meta p:last-child {
  border-right: 0;
}

.hero-map,
.section-map {
  margin: 0;
  padding: 0.7rem;
  background: rgba(255, 251, 244, 0.7);
  border: 1px solid rgba(74, 52, 38, 0.14);
  border-radius: 26px;
  box-shadow: 0 16px 40px rgba(128, 92, 52, 0.08);
}

.hero-map img,
.section-map img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 18px;
}

.section {
  width: min(100% - 8vw, var(--content-max));
  margin: 0 auto;
  padding: clamp(3.3rem, 6.5vw, 5.3rem) 0;
}

.section-head h2 {
  margin: 0.45rem 0 0;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(1.75rem, 3vw, 2.7rem);
  line-height: 1.2;
}

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

.resource-intro {
  margin-top: 1.2rem;
  max-width: 56rem;
}

.resource-intro p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 1.02rem;
}

.theme-grid {
  margin-top: 1.6rem;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.9rem;
}

.theme-card,
.region-card,
.resource-card {
  background: rgba(255, 251, 244, 0.72);
  border: 1px solid rgba(74, 52, 38, 0.14);
  border-radius: 22px;
  box-shadow: 0 12px 30px rgba(145, 112, 74, 0.06);
}

.section-map {
  margin-top: 1.45rem;
}

.theme-card {
  padding: 0.95rem 0.95rem 1rem;
}

.theme-card h3 {
  margin: 0.35rem 0 0.5rem;
  font-size: 1.02rem;
  line-height: 1.28;
}

.theme-card p:last-child {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.region-grid {
  margin-top: 1rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.9rem;
}

.region-card {
  padding: 0.95rem 1rem;
}

.region-card h3 {
  margin: 0;
  font-size: 1rem;
}

.region-card p {
  margin: 0.45rem 0 0;
  color: var(--ink-soft);
}

.resource-detail-grid {
  margin-top: 1.6rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.resource-card {
  padding: 1.05rem 1.05rem 1.15rem;
}

.resource-card-head h3 {
  margin: 0.32rem 0 0;
  font-size: 1.24rem;
  line-height: 1.26;
}

.resource-card-copy {
  margin: 0.75rem 0 0;
  color: var(--ink);
  font-weight: 600;
}

.resource-points {
  margin: 0.85rem 0 0;
  padding: 0 0 0 1.1rem;
  display: grid;
  gap: 0.4rem;
  color: var(--ink-soft);
}

.resource-tag {
  margin: 0;
  color: var(--accent-deep);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 800;
}

.section-season,
.section-routes,
.section-planning {
  border-top: 1px solid var(--line);
}

.season-grid {
  margin-top: 1.7rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.season-card {
  padding: 1rem 1.05rem;
  background: rgba(255, 251, 244, 0.72);
  border: 1px solid rgba(74, 52, 38, 0.14);
  border-radius: 22px;
  box-shadow: 0 12px 30px rgba(145, 112, 74, 0.06);
}

.season-card h3 {
  margin: 0;
  font-size: 1.16rem;
}

.season-card ul {
  margin: 0.75rem 0 0;
  padding: 0 0 0 1.1rem;
  display: grid;
  gap: 0.33rem;
  color: var(--ink-soft);
}

.route-list {
  margin-top: 1.7rem;
  border-top: 1px solid var(--line);
}

.route-item {
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.route-head {
  display: grid;
  grid-template-columns: minmax(180px, 0.45fr) 1fr;
  align-items: baseline;
  gap: 0.9rem;
}

.route-badge {
  margin: 0;
  color: var(--accent-deep);
  font-size: 0.78rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  font-weight: 800;
}

.route-head h3 {
  margin: 0;
  font-size: clamp(1.18rem, 2vw, 1.55rem);
  line-height: 1.25;
}

.route-days {
  margin: 0.85rem 0 0;
  display: grid;
  gap: 0.26rem;
}

.route-days p {
  margin: 0;
  color: var(--ink-soft);
}

.route-meta {
  margin: 0.72rem 0 0;
  font-size: 0.9rem;
  color: var(--ink);
  font-weight: 700;
}

.planning-grid {
  margin-top: 1.75rem;
  display: grid;
  grid-template-columns: 1.45fr 1fr;
  gap: 1rem;
}

.planning-block {
  padding: 1rem 1rem 1.1rem;
  background: rgba(255, 251, 244, 0.72);
  border: 1px solid rgba(74, 52, 38, 0.14);
  border-radius: 22px;
  box-shadow: 0 12px 30px rgba(145, 112, 74, 0.06);
}

.planning-block h3 {
  margin: 0;
  font-size: 1.15rem;
}

.planning-table-wrap {
  margin-top: 0.7rem;
  overflow-x: auto;
}

.planning-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.planning-table th,
.planning-table td {
  text-align: left;
  padding: 0.56rem 0.5rem;
  border-bottom: 1px solid rgba(16, 40, 38, 0.14);
  vertical-align: top;
}

.planning-table th {
  font-weight: 800;
  color: var(--ink);
}

.budget-list,
.tips-list {
  margin: 0.78rem 0 0;
  padding: 0 0 0 1.1rem;
  color: var(--ink-soft);
  display: grid;
  gap: 0.42rem;
}

.planning-note {
  margin: 0.85rem 0 0;
  font-size: 0.86rem;
  color: var(--ink);
}

.section-guides {
  position: relative;
  isolation: isolate;
}

.section-guides::before {
  content: "";
  position: absolute;
  inset: 5% -8vw 10% -8vw;
  z-index: -1;
  background: linear-gradient(160deg, rgba(222, 193, 150, 0.12), rgba(175, 205, 195, 0.1));
}

.guides-grid {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}

.guide {
  padding: 0 0 0 1rem;
  border-left: 2px solid rgba(153, 101, 33, 0.45);
}

.guide-index {
  margin: 0;
  color: rgba(153, 101, 33, 0.68);
  font-weight: 800;
  letter-spacing: 0.16em;
}

.guide h3 {
  margin: 0.45rem 0 0.8rem;
  font-size: 1.3rem;
  line-height: 1.26;
}

.guide p {
  margin: 0;
  color: var(--ink-soft);
}

.guide .guide-label {
  margin-top: 0.75rem;
  color: var(--ink);
  font-size: 0.87rem;
  font-weight: 700;
}

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

.process {
  margin-top: 1.9rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.process-item {
  padding: 1rem 0.8rem 0;
  border-top: 2px solid rgba(16, 40, 38, 0.24);
}

.process-item > p {
  margin: 0;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  color: var(--accent-deep);
}

.process-item h3 {
  margin: 0.5rem 0 0.55rem;
  font-size: 1.17rem;
}

.process-item p:last-child {
  margin: 0;
  color: var(--ink-soft);
}

.section-contact {
  padding-bottom: 6.5rem;
}

.contact-wrap {
  background: linear-gradient(137deg, rgba(249, 243, 232, 0.96) 0%, rgba(241, 229, 208, 0.96) 100%);
  color: var(--ink);
  border: 1px solid rgba(74, 52, 38, 0.14);
  border-radius: 30px;
  padding: clamp(1.4rem, 4vw, 2.5rem);
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 1.7rem;
  box-shadow: 0 18px 40px rgba(142, 104, 67, 0.1);
}

.contact-copy h2 {
  margin: 0.5rem 0 0.9rem;
  font-family: "Noto Serif SC", serif;
  font-size: clamp(1.42rem, 2.7vw, 2.15rem);
  line-height: 1.25;
}

.contact-copy p {
  margin: 0;
}

.contact-copy ul {
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.35rem;
}

.lead-form {
  display: grid;
  gap: 0.8rem;
}

.lead-form label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.9rem;
  font-weight: 600;
}

.lead-form input,
.lead-form textarea {
  width: 100%;
  border: 1px solid rgba(74, 52, 38, 0.14);
  background: rgba(255, 255, 255, 0.75);
  color: var(--ink);
  border-radius: 14px;
  padding: 0.7rem 0.85rem;
  font: inherit;
}

.lead-form input::placeholder,
.lead-form textarea::placeholder {
  color: rgba(102, 84, 72, 0.68);
}

.form-note {
  min-height: 1.4em;
  margin: 0;
  font-size: 0.88rem;
  color: #fdd796;
}

.floating-cta {
  position: fixed;
  right: 1.15rem;
  bottom: 1.2rem;
  z-index: 25;
  background: var(--accent);
  color: #fff;
  padding: 0.68rem 1.1rem;
  border-radius: 999px;
  font-weight: 800;
  letter-spacing: 0.06em;
  box-shadow: 0 10px 24px rgba(117, 73, 18, 0.32);
  transition: transform 220ms ease;
}

.floating-cta:hover {
  transform: translateY(-3px);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.15rem 4vw;
  color: var(--ink-soft);
  font-size: 0.86rem;
}

.footer-note {
  margin: 0.35rem 0 0;
  max-width: 58rem;
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 600ms ease, transform 600ms ease;
}

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

@media (max-width: 960px) {
  .theme-grid,
  .region-grid,
  .resource-detail-grid,
  .season-grid,
  .planning-grid,
  .guides-grid,
  .process,
  .contact-wrap {
    grid-template-columns: 1fr;
  }

  .route-head {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }
.site-nav {
    position: fixed;
    inset: 4.25rem 4vw auto 4vw;
    background: rgba(248, 240, 226, 0.97);
    border: 1px solid rgba(74, 52, 38, 0.14);
    border-radius: 16px;
    padding: 1rem;
    flex-direction: column;
    transform: scale(0.97);
    opacity: 0;
    pointer-events: none;
    transition: opacity 220ms ease, transform 220ms ease;
  }

  .site-nav.is-open {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
  }

  .menu-toggle {
    display: inline-flex;
  }
}

@media (max-width: 640px) {
  .hero {
    min-height: 92svh;
  }

  .hero-shell {
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-top: 5rem;
  }

  .hero-content {
    width: 100%;
    margin: 0;
    padding-right: 0;
  }

  .hero-meta {
    gap: 0.45rem 0.85rem;
    font-size: 0.78rem;
  }

  .hero-meta p {
    border-right: 0;
    padding-right: 0;
  }

  .section {
    width: min(100% - 9vw, var(--content-max));
  }

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

  .contact-wrap {
    border-radius: 20px;
  }

  .floating-cta {
    right: 0.7rem;
    bottom: 0.72rem;
    font-size: 0.85rem;
    padding: 0.6rem 0.9rem;
  }
}