:root {
  --accent: #3682C7;
  --accent-dark: #2a689e;
  --accent-soft: #eaf3fa;
  --red: #e2452c;
  --ink: #262320;
  --muted: #6f6a61;
  --line: #e4ddd0;
  --bg: #fbf8f2;
  --bg-soft: #f3ede1;
  --shadow: 0 20px 50px rgba(60, 45, 20, 0.10);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Work Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  text-wrap: pretty;
  -webkit-font-smoothing: antialiased;
}

h1, h2, .eyebrow { font-family: "Source Serif 4", Georgia, "Times New Roman", serif; }

a { color: var(--accent); transition: color 0.15s ease, opacity 0.15s ease; }
a:hover { color: var(--accent-dark); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 32px;
}

header.site-header {
  padding: 28px 0;
  position: sticky;
  top: 0;
  background: rgba(251, 248, 242, 0.88);
  backdrop-filter: blur(8px);
  z-index: 10;
}

header.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.brand {
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.2px;
}

nav.main-nav {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}

nav.main-nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 6px 2px;
  border-bottom: 1px solid transparent;
  white-space: nowrap;
  transition: border-color 0.15s ease, color 0.15s ease;
}

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

nav.main-nav a.active {
  border-bottom-color: var(--accent);
  color: var(--accent);
}

.lang-cn { display: none; }
body.show-cn .lang-en { display: none; }
body.show-cn .lang-cn { display: inline; }

.lang-switch {
  display: flex;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 100px;
  padding: 3px;
}

.lang-btn {
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 5px 12px;
  border-radius: 100px;
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
  transition: background 0.15s ease, color 0.15s ease;
}

.lang-btn:hover { color: var(--ink); }

.lang-btn.active {
  background: var(--accent);
  color: #fff;
}

.hero {
  padding: 64px 0 100px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
}

.hero-content { max-width: 540px; }

.hero-media img {
  width: 100%;
  height: auto;
  border-radius: 4px;
  box-shadow: var(--shadow);
}

.hero-art {
  position: relative;
  aspect-ratio: 5 / 4.6;
  border-radius: 4px;
  background: var(--bg-soft);
  overflow: hidden;
}

.hero-art-shape {
  position: absolute;
  border-radius: 50%;
}

.shape-1 {
  width: 62%;
  height: 62%;
  top: -8%;
  right: -10%;
  background: radial-gradient(circle at 30% 30%, var(--accent) 0%, var(--accent-soft) 75%);
  opacity: 0.9;
}

.shape-2 {
  width: 38%;
  height: 38%;
  bottom: 8%;
  left: 10%;
  background: var(--bg);
  border: 1.5px solid var(--accent);
  opacity: 0.55;
}

.shape-3 {
  width: 16%;
  height: 16%;
  bottom: 18%;
  right: 18%;
  background: var(--red);
  opacity: 0.85;
}

.hero-art-line {
  position: absolute;
  left: 12%;
  top: 44%;
  width: 46%;
  height: 1px;
  background: var(--accent);
  opacity: 0.4;
  transform: rotate(-8deg);
}

.hero .eyebrow {
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
  font-size: clamp(1.2rem, 1rem + 0.6vw, 1.4rem);
  margin: 0 0 18px;
}

.hero h1 {
  font-size: clamp(2.4rem, 1.9rem + 2.2vw, 3.6rem);
  margin: 0 0 26px;
  font-weight: 500;
  letter-spacing: -0.5px;
  line-height: 1.12;
}

.hero h1 .accent { color: var(--red); font-style: italic; }

.hero-sub {
  font-size: 1.08rem;
  color: var(--muted);
  max-width: 440px;
  margin: 0 0 34px;
}

@media (max-width: 800px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-media { order: -1; }
  .hero { padding: 40px 0 60px; }
}

.about { background: var(--bg-soft); }

.about-grid { max-width: 720px; }

.about h2 {
  font-size: clamp(1.8rem, 1.5rem + 1vw, 2.4rem);
  font-weight: 500;
  margin-bottom: 28px;
}

.about-copy p {
  color: var(--ink);
  font-size: 1.05rem;
}

.about-copy p + p { margin-top: 1.2em; }

.about-close {
  font-style: italic;
  color: var(--accent-dark);
}

section {
  padding: 88px 0;
}

h2 {
  font-size: 1.6rem;
  font-weight: 500;
  margin-top: 0;
  margin-bottom: 20px;
  letter-spacing: -0.3px;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  padding: 16px 34px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
  border: none;
  cursor: pointer;
  box-shadow: 0 6px 16px rgba(54, 130, 199, 0.28);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(54, 130, 199, 0.34);
}

.btn-outline {
  display: inline-block;
  background: transparent;
  color: var(--accent);
  text-decoration: none;
  padding: 12px 26px;
  border-radius: 6px;
  font-weight: 600;
  border: 1.5px solid var(--accent);
  font-size: 1rem;
}

.contact-block {
  color: var(--muted);
  text-align: center;
}

.contact-block h2 { font-weight: 500; }
.contact-block p { margin: 6px 0; }

.contact-block a { color: var(--ink); font-weight: 600; }
.contact-block a:hover { color: var(--accent); }

footer.site-footer {
  border-top: 1px solid var(--line);
  padding: 32px 0;
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
}

form.simple-form {
  display: grid;
  gap: 16px;
  max-width: 560px;
}

main > .wrap > section > h2:first-child,
main .wrap section h2 {
  margin-bottom: 24px;
}

form.simple-form .row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 520px) {
  form.simple-form .row-2 { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.9rem; }
}

label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 6px;
}

input, textarea, select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #d9d0bd;
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
  background: #fff;
  transition: border-color 0.15s ease;
}

input:focus, textarea:focus, select:focus {
  border-color: var(--accent);
}

textarea { min-height: 120px; resize: vertical; }

fieldset {
  border: none;
  padding: 0;
  margin: 0;
}

.radio-row {
  display: flex;
  gap: 20px;
  margin-top: 4px;
}

.radio-row label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.95rem;
  color: var(--ink);
}

.radio-row input { width: auto; }

.service {
  border-top: 1px solid var(--line);
  padding: 26px 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
}

.service h3 { font-family: "Source Serif 4", Georgia, serif; }

.service h3 { margin: 0 0 4px; font-size: 1.1rem; }
.service p { margin: 0; color: var(--muted); }
.service .meta { color: var(--muted); font-size: 0.9rem; margin-top: 6px; }

.note {
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
  font-size: 0.9rem;
  color: var(--muted);
}

.cal-embed {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  min-height: 700px;
}