.growth-page { background: #f5f5f7; color: #111; }
.growth-shell { width: min(1120px, calc(100% - 40px)); margin: 0 auto; }
.growth-nav { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.growth-nav .wordmark { color: inherit; text-decoration: none; font-weight: 750; letter-spacing: -.03em; }
.growth-nav-link { color: #404045; text-decoration: none; font-size: .92rem; }
.growth-hero { padding: 92px 0 72px; text-align: center; }
.growth-eyebrow { color: #6e6e73; font-size: .84rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.growth-hero h1 { max-width: 900px; margin: 18px auto; font-size: clamp(3rem, 7vw, 6.6rem); line-height: .96; letter-spacing: -.065em; }
.growth-hero-copy { max-width: 700px; margin: 0 auto; color: #515154; font-size: clamp(1.08rem, 2vw, 1.42rem); line-height: 1.55; }
.growth-actions { margin-top: 32px; display: flex; justify-content: center; align-items: center; gap: 18px; flex-wrap: wrap; }
.growth-cta { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 24px; border-radius: 999px; background: #111; color: #fff; text-decoration: none; font-weight: 700; }
.growth-secondary { color: #0066cc; text-decoration: none; font-weight: 650; }
.growth-proof { margin: 22px 0 0; color: #6e6e73; font-size: .9rem; }
.growth-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; padding-bottom: 84px; }
.growth-card { background: #fff; border-radius: 28px; padding: 32px; min-height: 250px; box-shadow: 0 1px 0 rgba(0,0,0,.04); }
.growth-card span { color: #86868b; font-size: .78rem; font-weight: 700; letter-spacing: .08em; }
.growth-card h2 { margin: 18px 0 12px; font-size: 1.55rem; letter-spacing: -.035em; }
.growth-card p { margin: 0; color: #515154; line-height: 1.65; }
.growth-strip { background: #111; color: #fff; padding: 72px 0; }
.growth-strip-inner { display: grid; grid-template-columns: 1.2fr .8fr; align-items: center; gap: 48px; }
.growth-strip h2 { margin: 0; font-size: clamp(2rem, 4vw, 4rem); letter-spacing: -.05em; }
.growth-strip p { color: #b7b7bd; line-height: 1.65; }
.growth-strip .growth-cta { background: #fff; color: #111; margin-top: 12px; }
.growth-footer { padding: 34px 0; color: #6e6e73; font-size: .85rem; }
.why-section { background: #fff; padding: 76px 0; }
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: start; }
.why-section h2, .lesson-heading h2 { margin: 12px 0 0; font-size: clamp(2.2rem, 4.5vw, 4.6rem); line-height: 1; letter-spacing: -.055em; }
.why-points { display: grid; gap: 24px; }
.why-points p { margin: 0; color: #515154; font-size: 1.05rem; line-height: 1.65; }
.why-points strong { display: block; color: #111; font-size: 1.14rem; }
.mini-lesson { padding: 88px 0; }
.lesson-heading { max-width: 780px; margin-bottom: 38px; }
.lesson-heading > p:last-child { color: #6e6e73; font-size: 1.05rem; }
.phrase-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.phrase-card { display: flex; flex-direction: column; min-height: 285px; padding: 24px; border-radius: 24px; background: #fff; border: 1px solid #e5e5e7; }
.phrase-card > span { color: #86868b; font-size: .75rem; font-weight: 750; letter-spacing: .08em; }
.phrase-card h3 { margin: 28px 0 8px; font-size: 1.65rem; letter-spacing: -.025em; }
.phrase-card p { margin: 5px 0; color: #515154; }
.phrase-card .pinyin { color: #0066cc; font-weight: 650; }
.phrase-audio { margin-top: auto; min-height: 42px; border: 0; border-radius: 999px; background: #eef6ff; color: #0066cc; font-weight: 700; cursor: pointer; }
.phrase-audio:hover { background: #dceeff; }
.lesson-complete { margin-top: 24px; padding: 28px 32px; border-radius: 24px; background: #eaf3ff; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.lesson-complete p { margin: 0; color: #3f4954; line-height: 1.55; }
.lesson-complete strong { color: #111; }
@media (max-width: 760px) {
  .growth-hero { padding: 64px 0 54px; }
  .growth-grid, .growth-strip-inner, .why-grid { grid-template-columns: 1fr; }
  .why-grid { gap: 38px; }
  .phrase-grid { grid-template-columns: 1fr; }
  .phrase-card { min-height: 230px; }
  .lesson-complete { align-items: stretch; flex-direction: column; }
  .growth-card { min-height: auto; }
}