/* greenshandong.com 站点样式：自包含、无外链、无字体下载
   配色在 :root 里改，改一处全站生效 */

:root {
  --ink: #14201b;
  --ink-soft: #4a5b53;
  --line: #e2e8e4;
  --bg: #ffffff;
  --bg-alt: #f5f8f6;
  --brand: #0f5c3f;
  --brand-soft: #e6f2ec;
  --radius: 14px;
  --max: 1080px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e8efea;
    --ink-soft: #9fb3a8;
    --line: #23302a;
    --bg: #0c110e;
    --bg-alt: #111815;
    --brand: #4fbf8b;
    --brand-soft: #16241d;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.75 -apple-system, BlinkMacSystemFont, "PingFang SC",
        "Hiragino Sans GB", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

/* 顶栏 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 16px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 600; }
.brand:hover { text-decoration: none; }
.brand-mark {
  width: 22px; height: 22px; border-radius: 7px;
  background: linear-gradient(135deg, var(--brand), color-mix(in srgb, var(--brand) 55%, #8fd6b3));
  display: inline-block;
}
.nav { display: flex; gap: 22px; font-size: 14.5px; }
.nav a { color: var(--ink-soft); }
.nav a:hover { color: var(--brand); text-decoration: none; }

/* 首屏 */
.hero { padding: 84px 0 72px; }
.eyebrow {
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--brand);
  margin: 0 0 18px;
  text-transform: uppercase;
}
.hero h1 {
  font-size: clamp(28px, 4.6vw, 44px);
  line-height: 1.32;
  letter-spacing: -.01em;
  margin: 0 0 24px;
  max-width: 22em;
}
.lede {
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 36em;
  margin: 0 0 34px;
}
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 56px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 22px;
  border-radius: 999px; font-size: 15px; font-weight: 500;
  border: 1px solid transparent;
}
.btn:hover { text-decoration: none; }
.btn.primary { background: var(--brand); color: #fff; }
.btn.primary:hover { filter: brightness(1.06); }
.btn.ghost { border-color: var(--line); color: var(--ink); }
.btn.ghost:hover { background: var(--bg-alt); }

.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 20px;
  margin: 0;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.facts dt { font-size: 23px; font-weight: 600; color: var(--ink); letter-spacing: -.01em; }
.facts dd { margin: 4px 0 0; font-size: 13.5px; color: var(--ink-soft); }

/* 通用区块 */
.section { padding: 76px 0; }
.section.alt { background: var(--bg-alt); }
.section h2 {
  font-size: 24px;
  margin: 0 0 18px;
  letter-spacing: -.01em;
}
.section-note { color: var(--ink-soft); margin: 0 0 32px; max-width: 38em; }
.section p { color: var(--ink-soft); max-width: 40em; }

.two-col {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 56px;
  align-items: start;
}
.checklist { margin: 0; padding: 0; list-style: none; }
.checklist li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 14px;
  color: var(--ink-soft);
  font-size: 15px;
}
.checklist li::before {
  content: "";
  position: absolute;
  left: 4px; top: 11px;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--brand);
  opacity: .75;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}
.card {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 22px;
}
.card h3 { font-size: 16.5px; margin: 0 0 10px; }
.card p { margin: 0; font-size: 14.5px; color: var(--ink-soft); }

.list { list-style: none; margin: 0; padding: 0; }
.list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.list li:first-child { border-top: 1px solid var(--line); }
.list a { font-size: 16px; color: var(--ink); }
.list a:hover { color: var(--brand); }
.meta { font-size: 13px; color: var(--ink-soft); white-space: nowrap; }

.contact-list { list-style: none; margin: 24px 0 0; padding: 0; }
.contact-list li { margin-bottom: 10px; color: var(--ink-soft); }

/* 页脚 */
.site-footer { border-top: 1px solid var(--line); padding: 28px 0; }
.footer-inner {
  display: flex; flex-wrap: wrap; gap: 14px;
  justify-content: space-between;
  font-size: 13.5px; color: var(--ink-soft);
}
.foot-links { display: flex; gap: 18px; }
.foot-links a { color: var(--ink-soft); }

@media (max-width: 860px) {
  .two-col { grid-template-columns: 1fr; gap: 32px; }
  .hero { padding: 56px 0 48px; }
  .section { padding: 56px 0; }
  .nav { gap: 16px; font-size: 14px; }
}

@media (max-width: 520px) {
  .nav { display: none; }
  .list li { flex-direction: column; gap: 4px; }
}