:root {
  --bg: #F2F0E5;
  --surface: #FFFCF0;
  --side: #E6E2D8;
  --border: #DAD8CE;
  --text-1: #100F0C;
  --text-2: #5F5E55;
  --accent: #BC5215;
  --accent-hover: #A8430F;
  --accent-soft: rgba(188, 82, 21, .10);
  --radius-s: 6px;
  --radius-m: 10px;
  --radius-l: 14px;
  --font: "Microsoft YaHei UI", "PingFang SC", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text-1); font: 14px/1.5 var(--font); -webkit-font-smoothing: antialiased; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }
.shell { width: min(100% - 48px, 1080px); margin-inline: auto; }
.skip-link { position: absolute; top: -80px; left: 16px; z-index: 10; padding: 8px 12px; background: var(--surface); border: 1px solid var(--accent); border-radius: var(--radius-s); }
.skip-link:focus { top: 16px; }

.site-header { border-bottom: 1px solid var(--border); background: var(--surface); }
.header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.wordmark { display: inline-flex; align-items: center; gap: 8px; font-size: 16px; font-weight: 600; white-space: nowrap; }
.wordmark-symbol { display: grid; place-items: center; width: 32px; height: 32px; border-radius: var(--radius-m); background: var(--accent-soft); color: var(--accent); font-size: 20px; }
nav { display: flex; align-items: center; gap: 24px; color: var(--text-2); font-size: 13px; }
nav a:hover, .text-link:hover { color: var(--accent); }

.hero { min-height: 620px; display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 48px; padding-block: 72px; }
.eyebrow, .section-kicker { margin: 0 0 16px; color: var(--accent); font-size: 13px; font-weight: 600; letter-spacing: .08em; }
h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 24px; font-size: 28px; font-weight: 600; line-height: 1.3; letter-spacing: -.02em; }
.hero-lead { max-width: 520px; margin-bottom: 32px; color: var(--text-2); font-size: 16px; line-height: 1.75; }
.hero-actions { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.button { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; gap: 16px; padding: 8px 20px; border: 1px solid var(--accent); border-radius: var(--radius-s); font-size: 14px; font-weight: 600; transition: background .15s ease, transform .15s ease; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--accent); color: var(--surface); }
.button-primary:hover { background: var(--accent-hover); }
.text-link { color: var(--text-1); font-size: 13px; font-weight: 500; text-decoration: underline; text-underline-offset: 4px; }
.entry-note { max-width: 520px; margin: 24px 0 0; color: var(--text-2); font-size: 12px; line-height: 1.7; }

.preview-wrap { position: relative; padding: 24px 20px 8px; }
.preview-glow { position: absolute; inset: 10% 0 0; background: radial-gradient(circle at 50% 50%, var(--accent-soft), transparent 68%); pointer-events: none; }
.preview-card { position: relative; max-width: 388px; margin: 0 auto; min-height: 460px; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 40px 32px; border: 1px solid var(--border); border-radius: var(--radius-l); background: var(--surface); box-shadow: 0 1px 3px rgba(16,15,12,.08), 0 4px 12px rgba(16,15,12,.06); text-align: center; transform: rotate(2deg); }
.preview-card::before { content: ""; position: absolute; inset: 12px; border: 1px solid var(--border); border-radius: var(--radius-m); pointer-events: none; }
.preview-kicker { margin-bottom: 24px; color: var(--accent); font-size: 12px; letter-spacing: .14em; }
.preview-ornament { margin-bottom: 12px; color: var(--accent); font-size: 16px; }
.preview-title { margin-bottom: 20px; font-size: 28px; font-weight: 600; line-height: 1.45; }
.preview-body { margin-bottom: 28px; color: var(--text-2); font-size: 14px; line-height: 1.8; }
.preview-button { padding: 8px 20px; border: 1px solid var(--border); border-radius: var(--radius-s); color: var(--accent); font-size: 13px; }
.preview-caption { position: relative; margin: 20px 0 0; color: var(--text-2); font-size: 12px; text-align: center; }

.steps-section { padding-block: 72px 80px; border-block: 1px solid var(--border); background: var(--surface); }
.steps-section h2, .closing h2 { margin-bottom: 32px; font-size: 20px; font-weight: 600; line-height: 1.3; }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.step-card { padding: 24px; border: 1px solid var(--border); border-radius: var(--radius-m); background: var(--surface); }
.step-number { color: var(--accent); font-size: 13px; font-weight: 600; }
.step-card h3 { margin: 16px 0 8px; font-size: 16px; font-weight: 600; }
.step-card p { margin: 0; color: var(--text-2); font-size: 13px; line-height: 1.7; }

.closing { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-block: 72px; }
.closing h2 { margin: 0; }
.site-footer { border-top: 1px solid var(--border); color: var(--text-2); font-size: 12px; }
.footer-inner { display: flex; justify-content: space-between; gap: 16px; padding-block: 24px; }

@media (max-width: 760px) {
  .shell { width: min(100% - 32px, 1080px); }
  .header-inner { min-height: 64px; }
  nav { gap: 16px; }
  nav a:first-child { display: none; }
  .hero { min-height: 0; grid-template-columns: 1fr; gap: 48px; padding-block: 56px; }
  .preview-wrap { padding-inline: 8px; }
  .preview-card { min-height: 380px; }
  .steps-section { padding-block: 56px; }
  .steps-grid { grid-template-columns: 1fr; }
  .closing { align-items: flex-start; flex-direction: column; padding-block: 56px; }
  .footer-inner { flex-direction: column; }
}

@media (max-width: 400px) {
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 20px; }
  .button { width: 100%; }
  .preview-card { min-height: 360px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
  .button:hover { transform: none; }
}