:root {
  --bg: #f7f6f1;
  --surface: #ffffff;
  --ink: #15241f;
  --ink-soft: #4a5a53;
  --muted: #7c8a83;
  --line: #e4e2d8;
  --teal: #0f6e63;
  --teal-deep: #0a4d45;
  --gold: #b8893b;
  --gold-soft: #d9b676;
  --shadow: 0 10px 30px rgba(15, 60, 54, 0.08);
  --radius: 16px;
  --maxw: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 246, 241, 0.9);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--teal), var(--teal-deep));
  color: #fff; font-weight: 800; letter-spacing: 0.5px;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-cn { font-weight: 700; font-size: 15px; }
.brand-en { font-size: 10px; letter-spacing: 1px; color: var(--muted); }

.site-nav ul {
  list-style: none; display: flex; align-items: center; gap: 22px;
  margin: 0; padding: 0;
}
.site-nav a { font-size: 14px; color: var(--ink-soft); transition: color .2s; }
.site-nav a:hover { color: var(--teal); }
.nav-cta {
  background: var(--teal); color: #fff !important;
  padding: 8px 16px; border-radius: 999px; font-weight: 600;
}
.nav-cta:hover { background: var(--teal-deep); }
.nav-toggle {
  display: none; border: 1px solid var(--line); background: #fff;
  border-radius: 10px; padding: 8px 14px; font-size: 14px; cursor: pointer;
  color: var(--ink);
}

/* Hero */
.hero {
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(184,137,59,0.16), transparent 60%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
  padding: 84px 0 72px;
  border-bottom: 1px solid var(--line);
}
.eyebrow {
  display: inline-block;
  font-size: 13px; letter-spacing: 0.5px;
  color: var(--teal-deep); font-weight: 600;
  background: rgba(15,110,99,0.1);
  padding: 6px 14px; border-radius: 999px;
  margin: 0 0 18px;
}
.hero h1 {
  font-size: clamp(34px, 6vw, 60px);
  line-height: 1.1; margin: 0 0 6px; letter-spacing: -0.5px;
}
.hero-sub { font-size: 15px; letter-spacing: 3px; color: var(--gold); margin: 0 0 18px; font-weight: 600; }
.hero-lead { font-size: clamp(17px, 2.4vw, 22px); color: var(--teal-deep); font-weight: 600; margin: 0 0 16px; }
.hero-desc { max-width: 640px; color: var(--ink-soft); font-size: 16px; margin: 0 0 28px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 44px; }
.hero-stats {
  list-style: none; display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 16px; margin: 0; padding: 24px 0 0; border-top: 1px solid var(--line);
}
.hero-stats li { display: flex; flex-direction: column; }
.hero-stats strong { font-size: 26px; color: var(--teal-deep); }
.hero-stats span { font-size: 13px; color: var(--muted); }

/* Buttons */
.btn {
  display: inline-block; padding: 12px 24px; border-radius: 999px;
  font-weight: 600; font-size: 15px; transition: transform .15s, background .2s;
}
.btn-primary { background: var(--teal); color: #fff; }
.btn-primary:hover { background: var(--teal-deep); transform: translateY(-1px); }
.btn-ghost { background: #fff; color: var(--teal-deep); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--teal); }
.btn-lg { padding: 15px 34px; font-size: 16px; }

/* Sections */
.section { padding: 76px 0; }
.section + .section { border-top: 1px solid var(--line); }
.section-kicker {
  font-size: 13px; letter-spacing: 1px; color: var(--gold);
  font-weight: 700; text-transform: uppercase; margin: 0 0 10px;
}
.section h2 { font-size: clamp(26px, 3.6vw, 38px); line-height: 1.2; margin: 0 0 14px; letter-spacing: -0.3px; }
.section-intro { max-width: 720px; color: var(--ink-soft); font-size: 16px; margin: 0 0 36px; }

.strength { background: #fff; }
.strength-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.strength-card {
  background: var(--bg); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px 24px;
}
.strength-card h3 { margin: 0 0 10px; font-size: 18px; color: var(--teal-deep); }
.strength-card p { margin: 0; color: var(--ink-soft); font-size: 15px; }

/* CLEAR */
.clear { background: linear-gradient(180deg, var(--bg), #fff); }
.clear-list { list-style: none; counter-reset: clear; margin: 0; padding: 0; display: grid; gap: 14px; }
.clear-list li {
  display: flex; gap: 20px; align-items: flex-start;
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px 24px; box-shadow: var(--shadow);
}
.clear-num {
  flex: 0 0 52px; height: 52px; border-radius: 12px;
  display: grid; place-items: center; font-weight: 800; font-size: 20px;
  color: #fff; background: linear-gradient(135deg, var(--teal), var(--gold));
}
.clear-list h3 { margin: 0 0 6px; font-size: 19px; }
.clear-list p { margin: 0; color: var(--ink-soft); }

/* Programs */
.programs { background: #fff; }
.program-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.program-card {
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; background: var(--bg);
}
.program-card h3 { margin: 0 0 10px; font-size: 18px; color: var(--teal-deep); }
.program-card p { margin: 0; color: var(--ink-soft); font-size: 15px; }
.program-feature { background: linear-gradient(160deg, #ffffff, #f0f6f4); border-color: #cfe6e0; }
.program-tag {
  display: inline-block; font-size: 12px; font-weight: 700; color: #fff;
  background: var(--gold); padding: 3px 10px; border-radius: 999px; margin: 0 0 12px;
}
.program-note { background: #fbf7ee; border-color: #ecdcc0; }

/* Therapies */
.therapies { background: var(--bg); }
.therapy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.therapy-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 22px; box-shadow: var(--shadow);
}
.therapy-card h3 { margin: 0 0 10px; font-size: 17px; color: var(--teal-deep); }
.therapy-card p { margin: 0; color: var(--ink-soft); font-size: 14.5px; }
.therapy-disclaimer {
  margin-top: 24px; font-size: 13.5px; color: var(--muted);
  background: #fff; border: 1px dashed var(--line); border-radius: 12px;
  padding: 16px 18px;
}

/* Team */
.team { background: #fff; }
.team-flow { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.team-step {
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 18px; text-align: center;
}
.team-step span {
  display: grid; place-items: center; width: 44px; height: 44px; margin: 0 auto 14px;
  border-radius: 50%; background: linear-gradient(135deg, var(--teal), var(--teal-deep));
  color: #fff; font-weight: 800;
}
.team-step h3 { margin: 0 0 8px; font-size: 16px; }
.team-step p { margin: 0; font-size: 13.5px; color: var(--ink-soft); }

/* Audience */
.audience { background: var(--bg); }
.audience-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.audience-card {
  background: #fff; border-left: 4px solid var(--teal); border-radius: 12px;
  padding: 22px 20px; box-shadow: var(--shadow);
}
.audience-card h3 { margin: 0 0 8px; font-size: 17px; color: var(--teal-deep); }
.audience-card p { margin: 0; font-size: 14.5px; color: var(--ink-soft); }

/* FAQ */
.faq { background: #fff; }
.faq-list { display: grid; gap: 12px; max-width: 860px; }
.faq details {
  background: var(--bg); border: 1px solid var(--line); border-radius: 12px;
  padding: 4px 20px;
}
.faq summary {
  cursor: pointer; font-weight: 600; padding: 16px 0; position: relative;
  list-style: none; font-size: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; position: absolute; right: 4px; top: 14px;
  font-size: 22px; color: var(--teal); font-weight: 400;
}
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 0 0 18px; color: var(--ink-soft); font-size: 15px; }

/* Contact */
.contact {
  background: linear-gradient(160deg, var(--teal-deep), #0a3a34);
  color: #fff;
}
.contact .section-kicker { color: var(--gold-soft); }
.contact h2 { color: #fff; }
.contact-lead { max-width: 640px; color: rgba(255,255,255,0.82); font-size: 16px; }
.contact-steps { list-style: none; counter-reset: step; margin: 0 0 30px; padding: 0; display: grid; gap: 12px; max-width: 560px; }
.contact-steps li {
  display: flex; align-items: center; gap: 14px; font-size: 15px;
  color: rgba(255,255,255,0.92);
}
.contact-steps span {
  flex: 0 0 30px; height: 30px; border-radius: 50%; display: grid; place-items: center;
  background: var(--gold); color: #fff; font-weight: 700; font-size: 14px;
}

/* Footer */
.site-footer { background: #11201c; color: rgba(255,255,255,0.7); padding: 44px 0 30px; }
.footer-name { font-size: 18px; font-weight: 700; color: #fff; margin: 0 0 6px; }
.footer-en { font-size: 12.5px; letter-spacing: 0.5px; color: rgba(255,255,255,0.55); margin: 0 0 18px; }
.footer-disclaimer { font-size: 12.5px; color: rgba(255,255,255,0.5); max-width: 760px; margin: 0 0 18px; }
.footer-powered { font-size: 13px; color: rgba(255,255,255,0.7); margin: 0; }
.footer-powered a { color: var(--gold-soft); font-weight: 600; }

/* Responsive */
@media (max-width: 900px) {
  .strength-grid, .program-grid, .therapy-grid, .audience-grid { grid-template-columns: repeat(2, 1fr); }
  .team-flow { grid-template-columns: repeat(2, 1fr); }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 18px; }
}
@media (max-width: 640px) {
  .site-nav ul {
    display: none; position: absolute; top: 68px; left: 0; right: 0;
    flex-direction: column; gap: 0; background: #fff; border-bottom: 1px solid var(--line);
    padding: 8px 24px 16px;
  }
  .site-nav ul.open { display: flex; }
  .site-nav li { width: 100%; border-bottom: 1px solid var(--line); }
  .site-nav a { display: block; padding: 12px 0; }
  .nav-cta { text-align: center; margin: 10px 0; }
  .nav-toggle { display: inline-block; }
  .strength-grid, .program-grid, .therapy-grid, .audience-grid, .team-flow { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 54px 0; }
}