:root {
  --bg: #fffaf3;
  --bg-alt: #fff4e3;
  --ink: #1b1d21;
  --ink-soft: #4a4f57;
  --ink-mute: #7b8089;
  --accent: #ff7a59;
  --accent-2: #ffb547;
  --green: #2f7a3d;
  --border: rgba(27,29,33,0.08);
  --shadow-sm: 0 1px 2px rgba(27,29,33,0.06), 0 4px 12px rgba(27,29,33,0.04);
  --shadow-md: 0 12px 32px rgba(255,122,89,0.12);
  --radius: 14px;
  --radius-lg: 22px;
  --maxw: 1120px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(1.4) blur(14px);
  background: rgba(255, 250, 243, 0.78);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.brand-mark svg { display: block; }
.brand-text strong {
  display: block;
  font-size: 16px;
  letter-spacing: 0.5px;
}
.brand-text small {
  display: block;
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 1.2px;
  text-transform: uppercase;
}
.nav {
  display: flex;
  gap: 28px;
  font-size: 14.5px;
  color: var(--ink-soft);
}
.nav a {
  position: relative;
  padding: 4px 0;
  transition: color .2s ease;
}
.nav a:hover { color: var(--accent); }
.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .25s ease;
}
.nav a:hover::after { transform: scaleX(1); }

.nav-toggle {
  display: none;
  width: 38px; height: 38px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  padding: 0;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
}
.nav-toggle span {
  display: block;
  width: 18px; height: 2px;
  background: var(--ink);
  border-radius: 2px;
}

/* ---- Hero ---- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 96px 0 88px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(60% 60% at 15% 10%, rgba(255,181,71,0.35), transparent 70%),
    radial-gradient(50% 50% at 90% 80%, rgba(255,122,89,0.28), transparent 70%),
    linear-gradient(180deg, #fffaf3 0%, #fff4e3 100%);
  z-index: 0;
}
.hero-inner { position: relative; z-index: 1; max-width: 860px; }
.eyebrow {
  display: inline-block;
  font-size: 12.5px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  margin: 0 0 14px;
}
.hero h1 {
  font-size: clamp(36px, 5.2vw, 58px);
  line-height: 1.15;
  margin: 0 0 22px;
  letter-spacing: -0.5px;
  font-weight: 700;
}
.accent {
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-2) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.lede {
  font-size: 17.5px;
  color: var(--ink-soft);
  max-width: 620px;
  margin: 0 0 32px;
}
.cta-row {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn-primary:hover { transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--border);
}
.btn-ghost:hover { background: #fff; }

.hero-stats {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 42px;
  flex-wrap: wrap;
}
.hero-stats li { display: flex; flex-direction: column; }
.hero-stats strong {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.5px;
}
.hero-stats span {
  font-size: 13px;
  color: var(--ink-mute);
  letter-spacing: 0.5px;
}

/* ---- Section base ---- */
.section { padding: 88px 0; }
.section-light { background: #fff; }
.section-dark {
  background: #1b1d21;
  color: #e6e7ea;
}
.section-head { max-width: 620px; margin: 0 auto 48px; text-align: center; }
.section-head h2, .two-col h2 { font-size: clamp(26px, 3.2vw, 38px); margin: 0 0 14px; letter-spacing: -0.3px; }
.section-head-light .eyebrow { color: var(--accent-2); }
.section-dark h3 { color: #fff; }
.section-dark p { color: #b7bac1; }

/* ---- About ---- */
.two-col {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: start;
}
.two-col p { color: var(--ink-soft); margin: 0 0 14px; }
.card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.card h3 { margin: 0 0 6px; font-size: 15px; color: var(--accent); letter-spacing: 1px; text-transform: uppercase; }
.card p { margin: 0; color: var(--ink); font-weight: 500; font-size: 15.5px; }

/* ---- Services ---- */
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.service {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.service:hover {
  transform: translateY(-4px);
  border-color: rgba(255,122,89,0.4);
  box-shadow: var(--shadow-md);
}
.service-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  background: linear-gradient(135deg, #fff1e0, #ffe2d1);
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  margin-bottom: 16px;
}
.service h3 { margin: 0 0 8px; font-size: 18px; }
.service p { margin: 0; color: var(--ink-soft); font-size: 14.5px; }

/* ---- Features (dark) ---- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.feature {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  transition: background .2s ease, transform .2s ease;
}
.feature:hover { background: rgba(255,255,255,0.08); transform: translateY(-3px); }
.feature-num {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--accent-2);
  margin-bottom: 14px;
  font-weight: 600;
}
.feature h3 { margin: 0 0 8px; font-size: 17px; }
.feature p { margin: 0; font-size: 14px; }

/* ---- Contact ---- */
.section-contact { background: linear-gradient(180deg, #fff4e3 0%, #fffaf3 100%); }
.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.contact-list {
  list-style: none;
  padding: 0;
  margin: 22px 0 0;
  display: grid;
  gap: 12px;
}
.contact-list li {
  display: grid;
  grid-template-columns: 80px 1fr;
  font-size: 15px;
  color: var(--ink-soft);
}
.contact-list span {
  color: var(--ink-mute);
  font-size: 13px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.contact-list a { color: var(--accent); }

.contact-form {
  background: #fff;
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  display: grid;
  gap: 14px;
}
.contact-form label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: var(--ink-soft);
  letter-spacing: 0.5px;
}
.contact-form input,
.contact-form textarea {
  font: inherit;
  padding: 11px 13px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fdfdfd;
  color: var(--ink);
  transition: border-color .15s ease, box-shadow .15s ease;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(255,122,89,0.12);
}
.contact-form textarea { resize: vertical; min-height: 120px; }
.form-hint { margin: 0; font-size: 13px; color: var(--green); min-height: 1.4em; }

/* ---- Footer ---- */
.site-footer {
  background: #16181c;
  color: #b7bac1;
  padding: 36px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-brand { margin: 0; color: #fff; font-weight: 600; }
.footer-en { margin: 4px 0 0; font-size: 13px; color: #7b8089; }
.footer-copy { margin: 0; font-size: 13px; }

/* ---- Responsive ---- */
@media (max-width: 860px) {
  .two-col, .contact-inner { grid-template-columns: 1fr; gap: 32px; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .hero { padding: 72px 0 64px; }
  .section { padding: 64px 0; }
}
@media (max-width: 620px) {
  .nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav.open {
    display: flex;
    position: absolute;
    top: 68px; left: 0; right: 0;
    background: #fff;
    padding: 18px 24px;
    flex-direction: column;
    gap: 14px;
    border-bottom: 1px solid var(--border);
  }
  .service-grid, .feature-grid, .card-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; }
}