:root {
  --navy: #132238;
  --navy-2: #1c3048;
  --ink: #17212d;
  --muted: #667487;
  --cream: #fff8ec;
  --paper: #ffffff;
  --line: #e4e9ee;
  --amber: #ffb547;
  --mint: #22c7a6;
  --sky: #dff6f1;
  --shadow: 0 18px 44px rgba(19, 34, 56, .11);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--cream); font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; line-height: 1.75; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; height: auto; }
.site-header { position: sticky; top: 0; z-index: 10; background: rgba(255,248,236,.96); border-bottom: 1px solid rgba(228,233,238,.9); backdrop-filter: blur(12px); }
.nav-wrap { max-width: 1160px; margin: 0 auto; min-height: 76px; padding: 12px 24px; display: flex; align-items: center; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; color: var(--navy); white-space: nowrap; }
.brand img { width: 50px; height: auto; }
.brand-name { font-size: 18px; letter-spacing: .02em; }
.nav-links { display: flex; align-items: center; gap: 8px; margin-left: auto; }
.nav-links a { padding: 8px 12px; border-radius: 9px; color: var(--muted); font-size: 14px; }
.nav-links a:hover, .nav-links a[aria-current="page"] { color: var(--navy); background: var(--sky); }
.nav-download, .button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 10px 18px; border: 0; border-radius: 10px; background: var(--navy); color: #fff; font-weight: 700; cursor: pointer; transition: transform .2s ease, background .2s ease; }
.nav-download:hover, .button:hover { transform: translateY(-2px); background: var(--navy-2); }
.button.accent { background: var(--amber); color: var(--navy); }
.button.accent:hover { background: #ffc566; }
.button.mint { background: var(--mint); color: var(--navy); }
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.hero { padding: 82px 0 72px; background: var(--navy); color: #fff; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr); gap: 56px; align-items: center; }
.eyebrow { color: var(--amber); font-size: 13px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
h1, h2, h3 { margin: 0; line-height: 1.22; color: var(--navy); }
.hero h1 { margin-top: 12px; color: #fff; font-size: clamp(34px, 5vw, 64px); letter-spacing: -.03em; }
.hero p { max-width: 620px; margin: 24px 0 28px; color: #d8e2ee; font-size: 17px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-note { margin-top: 18px; color: #aebdce; font-size: 13px; }
.hero-art { position: relative; min-height: 440px; }
.hero-card { position: absolute; width: 180px; padding: 16px; border: 1px solid rgba(255,255,255,.16); border-radius: 18px; background: var(--navy-2); box-shadow: var(--shadow); }
.hero-card.main { top: 8px; left: 72px; transform: rotate(-4deg); }
.hero-card.side { right: 34px; bottom: 6px; transform: rotate(5deg); background: #f8efe0; color: var(--navy); }
.hero-card img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; border-radius: 10px; }
.hero-card strong { display: block; margin-top: 12px; font-size: 15px; }
.hero-card small { display: block; margin-top: 4px; color: var(--muted); font-size: 12px; }
.section { padding: 86px 0; }
.section.alt { background: #f2f7f5; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
.section-head h2 { font-size: clamp(28px, 4vw, 42px); }
.section-head p { max-width: 520px; margin: 0; color: var(--muted); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-card { padding: 26px; border: 1px solid var(--line); border-radius: 14px; background: var(--paper); box-shadow: 0 8px 22px rgba(19,34,56,.04); }
.feature-icon { display: inline-flex; width: 42px; height: 42px; align-items: center; justify-content: center; border-radius: 12px; background: var(--sky); color: var(--navy); font-weight: 900; }
.feature-card h3 { margin: 18px 0 8px; font-size: 19px; }
.feature-card p { margin: 0; color: var(--muted); font-size: 14px; }
.split { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: center; }
.split h2 { font-size: clamp(28px, 4vw, 42px); }
.split-copy > p { color: var(--muted); }
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 26px; }
.stat { padding: 16px; border-left: 3px solid var(--amber); background: #fff; }
.stat strong { display: block; color: var(--navy); font-size: 25px; }
.stat span { color: var(--muted); font-size: 12px; }
.shot-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; align-items: start; }
.shot { margin: 0; padding: 14px; border-radius: 16px; background: var(--navy); box-shadow: var(--shadow); }
.shot:nth-child(2) { margin-top: 42px; background: #1e4d50; }
.shot:nth-child(3) { margin-top: 84px; background: #684b26; }
.shot img { width: 100%; max-width: 400px; margin: 0 auto; border-radius: 10px; }
.shot figcaption { padding: 12px 4px 2px; color: #e8eef4; font-size: 13px; }
.path-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.path-card { padding: 24px; border-radius: 14px; background: var(--navy); color: #fff; }
.path-card span { color: var(--amber); font-size: 12px; font-weight: 800; letter-spacing: .12em; }
.path-card h3 { margin: 10px 0; color: #fff; font-size: 20px; }
.path-card p { margin: 0 0 18px; color: #c3d0dd; font-size: 14px; }
.review-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 18px; }
.quote, .score-panel { padding: 30px; border-radius: 16px; background: #fff; border: 1px solid var(--line); }
.quote blockquote { margin: 0; font-size: 21px; line-height: 1.5; color: var(--navy); }
.quote cite { display: block; margin-top: 16px; color: var(--muted); font-style: normal; font-size: 13px; }
.score { color: var(--navy); font-size: 54px; font-weight: 800; line-height: 1; }
.score-panel p { margin: 10px 0 0; color: var(--muted); }
.page-hero { padding: 70px 0 56px; background: var(--navy); color: #fff; }
.page-hero h1 { color: #fff; font-size: clamp(34px, 5vw, 58px); }
.page-hero p { max-width: 690px; margin: 18px 0 0; color: #d8e2ee; }
.content-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.info-card { padding: 28px; border: 1px solid var(--line); border-radius: 14px; background: #fff; }
.info-card h2 { margin-bottom: 18px; font-size: 26px; }
.info-card p { margin: 0 0 12px; color: var(--muted); }
.step-list { display: grid; gap: 14px; margin: 0; padding: 0; list-style: none; }
.step-list li { display: grid; grid-template-columns: 40px 1fr; gap: 14px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.step-list li:last-child { border-bottom: 0; }
.step-num { display: inline-flex; width: 36px; height: 36px; align-items: center; justify-content: center; border-radius: 50%; background: var(--amber); color: var(--navy); font-weight: 800; }
.step-list strong { display: block; color: var(--navy); }
.step-list span { color: var(--muted); font-size: 14px; }
.faq-list { display: grid; gap: 12px; }
.faq-item { border: 1px solid var(--line); border-radius: 12px; background: #fff; overflow: hidden; }
.faq-item summary { padding: 18px 20px; color: var(--navy); font-weight: 800; cursor: pointer; }
.faq-item p { margin: 0; padding: 0 20px 18px; color: var(--muted); font-size: 14px; }
.note-box { padding: 22px 24px; border-left: 4px solid var(--mint); background: var(--sky); color: var(--navy); }
.site-footer { padding: 42px 0 28px; background: var(--navy); color: #c3d0dd; }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 32px; }
.site-footer .brand { color: #fff; }
.site-footer .brand img { width: 120px; }
.footer-title { margin: 0 0 10px; color: #fff; font-weight: 800; }
.site-footer p, .site-footer a { margin: 0; color: #c3d0dd; font-size: 13px; }
.site-footer a:hover { color: var(--amber); }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 32px; padding-top: 18px; border-top: 1px solid rgba(255,255,255,.14); font-size: 12px; }
.reveal { opacity: 0; transform: translateY(12px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 820px) {
  .nav-wrap { gap: 12px; }
  .nav-links { order: 3; width: 100%; justify-content: space-between; margin-left: 0; }
  .nav-wrap { flex-wrap: wrap; }
  .nav-download { margin-left: auto; }
  .hero-grid, .split, .review-grid { grid-template-columns: 1fr; }
  .hero-art { min-height: 420px; max-width: 520px; }
  .feature-grid, .path-grid, .content-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .container { padding: 0 18px; }
  .nav-wrap { padding: 10px 18px; }
  .brand img { width: 94px; }
  .brand-name { font-size: 16px; }
  .nav-download { min-height: 40px; padding: 8px 12px; font-size: 13px; }
  .nav-links a { padding: 7px 8px; font-size: 13px; }
  .hero { padding: 58px 0 52px; }
  .hero-art { min-height: 390px; }
  .section { padding: 62px 0; }
  .feature-grid, .path-grid, .content-grid, .shot-grid, .footer-grid { grid-template-columns: 1fr; }
  .shot:nth-child(2), .shot:nth-child(3) { margin-top: 0; }
  .stat-row { grid-template-columns: 1fr 1fr 1fr; }
  .stat { padding: 12px 8px; }
  .stat strong { font-size: 20px; }
  .section-head { display: block; }
  .section-head p { margin-top: 12px; }
  .footer-bottom { display: block; }
  .footer-bottom span { display: block; margin-top: 8px; }
}