:root {
  --forest: #20392c;
  --forest-deep: #162b21;
  --vermilion: #9b3a22;
  --gold: #d6ad68;
  --paper: #fffaf0;
  --cream: #f5efe3;
  --ink: #30251b;
  --muted: #786b5e;
  --line: #e2d3bc;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--cream); }
body { margin: 0; color: var(--ink); background: var(--cream); font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

.promo-nav { position: absolute; z-index: 5; top: 0; left: 0; right: 0; display: flex; align-items: center; justify-content: space-between; padding: 20px clamp(22px, 6vw, 88px); color: #fff; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: "Songti SC", "STSong", serif; font-size: 22px; font-weight: 900; }
.brand img { width: 34px; height: 34px; padding: 4px; border-radius: 50%; background: rgba(255,250,240,.9); }
.nav-link { padding: 9px 14px; border: 1px solid rgba(255,255,255,.45); border-radius: 4px; color: #fffaf0; font-size: 14px; font-weight: 800; }

.hero { position: relative; min-height: min(760px, 100svh); display: grid; grid-template-columns: minmax(0, .92fr) minmax(420px, 1.08fr); align-items: center; overflow: hidden; padding: 116px clamp(22px, 6vw, 88px) 78px; color: #fffaf0; background: var(--forest); }
.hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(22,43,33,.98) 0%, rgba(22,43,33,.88) 39%, rgba(22,43,33,.2) 76%, rgba(22,43,33,.3) 100%); pointer-events: none; }
.hero-copy, .hero-media { position: relative; z-index: 1; }
.hero-copy { max-width: 620px; padding-right: 42px; }
.eyebrow { margin: 0 0 14px; color: var(--gold); font-size: 13px; font-weight: 900; letter-spacing: .08em; }
.hero h1 { margin: 0; font-family: "Songti SC", "STSong", serif; font-size: clamp(46px, 5vw, 72px); font-weight: 900; line-height: 1.12; letter-spacing: 0; }
.hero-slogan { margin: 8px 0 0; color: #f1d79d; font-family: "Songti SC", "STSong", serif; font-size: clamp(30px, 3.7vw, 52px); font-weight: 900; line-height: 1.2; }
.hero-lead { max-width: 560px; margin: 26px 0 0; color: rgba(255,250,240,.82); font-size: 18px; line-height: 1.85; }
.hero-actions { display: flex; align-items: center; gap: 20px; margin-top: 34px; }
.primary-cta { display: inline-flex; min-height: 56px; align-items: center; justify-content: center; gap: 18px; padding: 0 24px; border-radius: 5px; color: #6e2b1b; background: #f0cd89; box-shadow: 0 12px 28px rgba(0,0,0,.17); font-size: 16px; font-weight: 900; }
.primary-cta span { font-size: 24px; line-height: 1; }
.quiet-cta { color: rgba(255,250,240,.84); font-size: 14px; font-weight: 800; }
.hero-note { margin: 22px 0 0; color: rgba(255,250,240,.56); font-size: 13px; }
.hero-media { min-height: 520px; align-self: stretch; display: flex; align-items: center; justify-content: flex-end; }
.hero-media::after { content: ""; position: absolute; inset: 10% -10% 8% 4%; border: 1px solid rgba(240,205,137,.42); border-radius: 2px; transform: rotate(3deg); pointer-events: none; }
.hero-media img { width: min(620px, 100%); height: min(520px, 72vh); object-fit: cover; border: 7px solid rgba(255,250,240,.9); box-shadow: 18px 24px 50px rgba(0,0,0,.28); }
.memory-caption { position: absolute; right: 4%; bottom: 9%; display: grid; gap: 4px; padding: 14px 18px; color: var(--ink); background: rgba(255,250,240,.94); box-shadow: 0 10px 24px rgba(0,0,0,.16); }
.memory-caption span { color: var(--vermilion); font-size: 11px; font-weight: 900; }
.memory-caption strong { font-family: "Songti SC", "STSong", serif; font-size: 18px; }

.proof-strip { display: grid; grid-template-columns: repeat(4, 1fr); max-width: 1180px; margin: -30px auto 0; position: relative; z-index: 3; border: 1px solid var(--line); border-radius: 5px; background: var(--paper); box-shadow: 0 14px 34px rgba(71,48,27,.11); }
.proof-strip div { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 12px; min-height: 92px; padding: 16px 22px; border-right: 1px solid var(--line); }
.proof-strip div:last-child { border-right: 0; }
.proof-strip strong { display: grid; width: 42px; height: 42px; place-items: center; border-radius: 50%; color: var(--vermilion); background: #efe2c8; font-family: "Songti SC", serif; font-size: 22px; }
.proof-strip span { color: var(--muted); font-size: 14px; font-weight: 800; }

.steps { max-width: 1180px; margin: 0 auto; padding: 120px 22px 110px; }
.section-intro { max-width: 650px; margin-bottom: 38px; }
.section-intro h2, .family-copy h2, .start-section h2 { margin: 0; font-family: "Songti SC", "STSong", serif; font-size: clamp(30px, 4vw, 48px); line-height: 1.25; }
.section-intro > p:last-child, .family-copy > p { margin: 14px 0 0; color: var(--muted); font-size: 16px; line-height: 1.85; }
.step-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 15px; }
.step-card { position: relative; min-height: 260px; padding: 24px 22px 22px; border-top: 3px solid var(--gold); background: rgba(255,250,240,.68); }
.step-card-featured { color: #fffaf0; background: var(--forest); }
.step-number { color: var(--vermilion); font-family: Georgia, serif; font-size: 12px; font-weight: 900; }
.step-card-featured .step-number { color: var(--gold); }
.step-mark { display: grid; width: 54px; height: 54px; place-items: center; margin: 28px 0 20px; border: 1px solid var(--gold); border-radius: 50%; color: var(--vermilion); background: #f0dfbc; font-family: "Songti SC", serif; font-size: 27px; font-weight: 900; }
.step-card-featured .step-mark { color: var(--forest); }
.step-card h3 { margin: 0; font-family: "Songti SC", "STSong", serif; font-size: 23px; }
.step-card p { margin: 12px 0 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.step-card-featured p { color: rgba(255,250,240,.72); }

.family-band { display: grid; grid-template-columns: 1fr 1fr; align-items: stretch; background: var(--forest-deep); }
.family-image { min-height: 520px; }
.family-image img { width: 100%; height: 100%; object-fit: cover; opacity: .92; }
.family-copy { display: flex; flex-direction: column; justify-content: center; padding: 70px clamp(30px, 7vw, 110px); color: #fffaf0; }
.family-copy h2 { max-width: 520px; }
.family-copy > p { max-width: 500px; color: rgba(255,250,240,.72); }
.family-copy ul { display: grid; gap: 13px; margin: 26px 0 0; padding: 0; list-style: none; color: #f1d79d; font-size: 14px; font-weight: 800; }
.family-copy li::before { content: "✓"; margin-right: 10px; color: var(--gold); }

.start-section { padding: 110px 22px 120px; text-align: center; }
.start-section .eyebrow { margin-bottom: 14px; }
.start-section > p:not(.eyebrow) { margin: 14px auto 0; color: var(--muted); font-size: 16px; line-height: 1.8; }
.start-seal { display: grid; width: 60px; height: 60px; place-items: center; margin: 0 auto 28px; border: 1px solid var(--vermilion); border-radius: 50%; color: #fffaf0; background: var(--vermilion); font-family: "Songti SC", serif; font-size: 21px; box-shadow: inset 0 0 0 4px #f5dfc0; }
.start-cta { margin-top: 30px; }
.start-section small { display: block; margin-top: 18px; color: #9a8874; font-size: 12px; }
.promo-footer { display: flex; align-items: center; justify-content: space-between; padding: 22px clamp(22px, 6vw, 88px); border-top: 1px solid var(--line); color: #9a8874; background: #eee5d6; font-size: 12px; }

@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 118px; }
  .hero-copy { max-width: 680px; padding-right: 0; }
  .hero-media { min-height: auto; margin-top: 48px; justify-content: center; }
  .hero-media img { width: 100%; height: 390px; }
  .memory-caption { right: 4%; bottom: 6%; }
  .proof-strip { margin: -18px 18px 0; }
  .proof-strip div { grid-template-columns: 1fr; justify-items: center; gap: 8px; padding: 14px 8px; text-align: center; }
  .proof-strip span { font-size: 12px; }
  .step-grid { grid-template-columns: repeat(2, 1fr); }
  .family-band { grid-template-columns: 1fr; }
  .family-image { min-height: 340px; max-height: 430px; }
}

@media (max-width: 520px) {
  .promo-nav { padding: 16px 18px; }
  .brand { font-size: 19px; }
  .hero { padding: 100px 20px 58px; }
  .hero h1 { font-size: 44px; }
  .hero-slogan { font-size: 32px; }
  .hero-lead { font-size: 16px; }
  .hero-actions { align-items: stretch; flex-direction: column; gap: 14px; }
  .primary-cta { width: 100%; }
  .quiet-cta { text-align: center; }
  .hero-media img { height: 300px; border-width: 5px; }
  .memory-caption { right: 6%; bottom: 5%; }
  .memory-caption strong { font-size: 15px; }
  .proof-strip { grid-template-columns: repeat(2, 1fr); }
  .proof-strip div:nth-child(2) { border-right: 0; }
  .proof-strip div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .steps { padding: 84px 18px 78px; }
  .step-grid { grid-template-columns: 1fr; }
  .step-card { min-height: auto; }
  .family-copy { padding: 60px 22px 72px; }
  .family-image { min-height: 260px; }
  .start-section { padding: 82px 20px 90px; }
  .promo-footer { align-items: flex-start; flex-direction: column; gap: 9px; padding: 20px 22px; }
}