:root {
  --bg: #f4fbf9;
  --bg-accent: #e6f7f3;
  --surface: #ffffff;
  --surface-soft: rgba(255, 255, 255, 0.78);
  --text: #18342e;
  --muted: #5d7871;
  --primary: #1f9b83;
  --primary-deep: #167e6a;
  --line: rgba(31, 155, 131, 0.12);
  --shadow: 0 20px 50px rgba(24, 52, 46, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(31, 155, 131, 0.10), transparent 28%),
    radial-gradient(circle at top right, rgba(73, 160, 255, 0.10), transparent 24%),
    linear-gradient(180deg, #f8fdfc 0%, var(--bg) 100%);
}

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

img {
  display: block;
  max-width: 100%;
}

.page-shell {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 36px 0 24px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 420px);
  gap: 36px;
  align-items: center;
  min-height: calc(100vh - 120px);
}

.hero-copy {
  padding: 28px 0;
}

.hero-tag,
.section-tag {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  background: rgba(31, 155, 131, 0.10);
  color: var(--primary-deep);
  font-size: 14px;
  font-weight: 600;
}

.hero-copy h1 {
  margin: 18px 0 18px;
  font-size: clamp(34px, 5vw, 60px);
  line-height: 1.08;
}

.hero-text,
.section-heading p,
.qr-card p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 28px;
}

.primary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary) 0%, #3fb8a0 100%);
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  box-shadow: 0 14px 30px rgba(31, 155, 131, 0.28);
}

.action-note {
  color: var(--muted);
  font-size: 15px;
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  padding: 0;
  margin: 34px 0 0;
  list-style: none;
}

.feature-list li {
  min-height: 64px;
  padding: 18px 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface-soft);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
}

.qr-panel {
  display: flex;
  justify-content: center;
}

.qr-card {
  width: min(100%, 400px);
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.75);
  border-radius: 28px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  text-align: center;
}

.qr-card img {
  width: 100%;
  max-width: 280px;
  margin: 0 auto 22px;
  border-radius: 22px;
}

.qr-card h2 {
  margin: 0 0 10px;
  font-size: 28px;
  line-height: 1.25;
}

.content-section {
  padding: 30px 0 12px;
}

.section-heading {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
}

.section-heading h2 {
  margin: 18px 0 14px;
  font-size: clamp(28px, 3.5vw, 42px);
  line-height: 1.18;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
  margin-top: 34px;
}

.shot-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--surface);
  box-shadow: 0 14px 32px rgba(24, 52, 46, 0.08);
}

.shot-card img {
  width: 100%;
  aspect-ratio: 9 / 19;
  object-fit: cover;
}

.site-footer {
  padding: 46px 0 12px;
  text-align: center;
}

.site-footer a {
  color: var(--muted);
  font-size: 14px;
}

.site-footer a:hover {
  color: var(--primary-deep);
}

@media (max-width: 980px) {
  .page-shell {
    width: min(100% - 32px, 880px);
    padding-top: 24px;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    gap: 26px;
  }

  .hero-copy {
    padding: 10px 0 0;
    text-align: center;
  }

  .hero-actions {
    justify-content: center;
  }

  .feature-list {
    grid-template-columns: 1fr;
  }

  .gallery {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: calc(100% - 24px);
    padding-top: 18px;
  }

  .hero-copy h1 {
    margin-top: 16px;
    font-size: clamp(30px, 9vw, 42px);
  }

  .hero-text,
  .section-heading p,
  .qr-card p {
    font-size: 15px;
  }

  .primary-action {
    width: 100%;
  }

  .qr-card {
    padding: 22px 18px;
    border-radius: 22px;
  }

  .qr-card h2 {
    font-size: 24px;
  }

  .gallery {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .shot-card {
    border-radius: 18px;
  }
}