:root {
  --navy: #14233f;
  --navy-2: #1d3258;
  --gold: #c9a35b;
  --gold-soft: #e4c994;
  --ink: #23282f;
  --muted: #5f6b7a;
  --bg: #f8f7f4;
  --card: #ffffff;
  --line: #e6e3dc;
  --radius: 14px;
  --maxw: 1160px;
  --shadow: 0 10px 30px rgba(20, 35, 63, 0.08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: Georgia, "Times New Roman", "Songti SC", serif;
  color: var(--navy);
  line-height: 1.25;
  margin: 0 0 0.5em;
  font-weight: 700;
}

h1 { font-size: clamp(28px, 4vw, 46px); }
h2 { font-size: clamp(24px, 3vw, 34px); }
h3 { font-size: 20px; }

p { margin: 0 0 1em; }

a { color: var(--navy-2); text-decoration: none; }

img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(20, 35, 63, 0.96);
  backdrop-filter: blur(6px);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-family: Georgia, serif;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.5px;
}
.brand .dot { color: var(--gold); }
.nav-links {
  display: flex;
  gap: 26px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: #d8dee8;
  font-size: 15px;
  transition: color 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--gold); }
.nav-cta {
  background: var(--gold);
  color: var(--navy) !important;
  padding: 9px 18px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14px;
}
.nav-cta:hover { background: var(--gold-soft); }
.nav-toggle {
  display: none;
  background: none;
  border: 0;
  color: #fff;
  font-size: 26px;
  cursor: pointer;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff;
  padding: 84px 0 72px;
}
.hero h1 { color: #fff; max-width: 16ch; }
.hero p.lead {
  color: #c7d0de;
  font-size: 18px;
  max-width: 56ch;
  margin-bottom: 28px;
}
.hero .accent { color: var(--gold); }
.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  transition: transform 0.15s, background 0.2s;
}
.btn-primary { background: var(--gold); color: var(--navy); }
.btn-primary:hover { background: var(--gold-soft); transform: translateY(-1px); }
.btn-ghost { border: 1px solid rgba(255,255,255,0.4); color: #fff; margin-left: 12px; }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }

/* Trust bar */
.trust {
  background: var(--navy-2);
  color: #fff;
  padding: 22px 0;
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  text-align: center;
}
.trust-grid .num { font-family: Georgia, serif; font-size: 28px; color: var(--gold); font-weight: 700; }
.trust-grid .label { font-size: 13px; color: #c7d0de; }

/* Sections */
section.block { padding: 72px 0; }
.section-head { text-align: center; max-width: 60ch; margin: 0 auto 44px; }
.section-head p { color: var(--muted); }

/* Cards */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.18s, box-shadow 0.18s;
}
.card:hover { transform: translateY(-4px); box-shadow: 0 16px 36px rgba(20,35,63,0.12); }
.card .thumb {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: Georgia, serif;
  font-size: 15px;
  letter-spacing: 1px;
  color: #fff;
}
.thumb.gift { background: linear-gradient(135deg, #8a6d3b, var(--gold)); }
.thumb.jewel { background: linear-gradient(135deg, #2c3e63, #516a9c); }
.thumb.soft { background: linear-gradient(135deg, #3a6b5e, #6fae9b); }
.card .body { padding: 22px; }
.card .body h3 { margin-top: 0; }
.card .body p { color: var(--muted); font-size: 14.5px; }
.card .body .more { color: var(--gold); font-weight: 600; font-size: 14px; }

/* Feature list */
.features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.feature {
  display: flex;
  gap: 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
}
.feature .ic {
  flex: 0 0 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--gold-soft);
  color: var(--navy);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: Georgia, serif;
}
.feature h4 { margin: 0 0 4px; font-size: 16px; }
.feature p { margin: 0; color: var(--muted); font-size: 14px; }

/* Split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.split .visual {
  height: 320px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--navy), var(--navy-2));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #c7d0de;
  font-family: Georgia, serif;
}

/* CTA */
.cta {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff;
  text-align: center;
  padding: 64px 0;
}
.cta h2 { color: #fff; }
.cta p { color: #c7d0de; max-width: 52ch; margin: 0 auto 26px; }

/* Footer */
.site-footer {
  background: #0e1729;
  color: #aab4c4;
  padding: 52px 0 26px;
  font-size: 14px;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 30px; }
.site-footer h4 { color: #fff; font-family: Georgia, serif; font-size: 16px; margin-bottom: 14px; }
.site-footer a { color: #aab4c4; display: block; margin-bottom: 8px; }
.site-footer a:hover { color: var(--gold); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 34px;
  padding-top: 18px;
  text-align: center;
  color: #6f7c8e;
  font-size: 13px;
}

/* Contact form */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
label { font-size: 14px; color: var(--navy); font-weight: 600; }
input, textarea, select {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font: inherit;
  background: #fff;
  color: var(--ink);
}
input:focus, textarea:focus, select:focus { outline: 2px solid var(--gold-soft); border-color: var(--gold); }
.form-note { font-size: 13px; color: var(--muted); }
.form-msg { padding: 12px 14px; border-radius: 10px; margin-top: 14px; display: none; }
.form-msg.ok { display: block; background: #e7f4ec; color: #1f6b3f; border: 1px solid #bfe3cc; }
.form-msg.err { display: block; background: #fbeaea; color: #9b2c2c; border: 1px solid #f1c4c4; }

/* FAQ */
.faq-item { border: 1px solid var(--line); border-radius: var(--radius); margin-bottom: 12px; background: #fff; overflow: hidden; }
.faq-q { padding: 16px 20px; cursor: pointer; font-weight: 600; color: var(--navy); display: flex; justify-content: space-between; }
.faq-q .plus { color: var(--gold); font-size: 20px; }
.faq-a { padding: 0 20px 16px; color: var(--muted); display: none; }
.faq-item.open .faq-a { display: block; }

/* Responsive */
@media (max-width: 900px) {
  .grid-3, .trust-grid { grid-template-columns: repeat(2, 1fr); }
  .features { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .nav-links {
    position: absolute;
    top: 68px; left: 0; right: 0;
    background: var(--navy);
    flex-direction: column;
    gap: 0;
    padding: 10px 20px 18px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links li { padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,0.08); }
  .nav-toggle { display: block; }
  .grid-3, .trust-grid, .form-grid, .footer-grid { grid-template-columns: 1fr; }
  .btn-ghost { margin-left: 0; margin-top: 12px; display: inline-block; }
}