/* ============================================
   jinqianhr.com — 单页官网
   纯静态、零外部依赖（无 CDN / 无网络字体 / 无追踪）
   ============================================ */

*, *::before, *::after { box-sizing: border-box; }

:root {
  --ink: #0f172a;
  --ink-2: #334155;
  --muted: #64748b;
  --line: #e6ebf2;
  --bg: #ffffff;
  --surface: #f7f9fc;
  --accent: #2563eb;
  --accent-ink: #1d4ed8;
  --radius: 16px;
  --wrap: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ── 导航 ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

/* 品牌标：图形标 + 两行字标（中文为主，英文作辅助小字） */
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--accent); }
.brand .mark { display: block; flex: none; height: 40px; width: auto; }
.brand-text { display: flex; flex-direction: column; gap: 4px; line-height: 1; }
.brand-text strong {
  font-size: 16.5px; font-weight: 800; color: var(--ink); letter-spacing: 0.05em;
}
.brand-text em {
  font-size: 8.5px; font-weight: 700; font-style: normal; color: var(--accent);
  letter-spacing: 0.2em; white-space: nowrap;
}

.links { display: flex; align-items: center; gap: 28px; font-size: 14px; color: var(--ink-2); }
.links a { transition: color .15s ease; }
.links a:hover { color: var(--accent-ink); }
.cta-link {
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff !important;
  font-weight: 600;
}
.cta-link:hover { background: var(--accent-ink); }

/* ── 首屏 ── */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(1000px 420px at 78% -10%, #e8f0ff 0%, rgba(232,240,255,0) 62%),
    linear-gradient(180deg, #fbfcfe 0%, #ffffff 78%);
  border-bottom: 1px solid var(--line);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  align-items: center;
  gap: 48px;
  padding: 84px 24px 92px;
}

.eyebrow {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(32px, 4.4vw, 54px);
  line-height: 1.24;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.lead {
  margin: 0 0 32px;
  max-width: 36em;
  font-size: 16px;
  color: var(--ink-2);
  text-wrap: pretty;
}

h1, h2 { text-wrap: balance; }

.actions { display: flex; flex-wrap: wrap; gap: 12px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 46px;
  padding: 0 24px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-ink); }
.btn.ghost { border: 1px solid var(--line); color: var(--ink-2); background: #fff; }
.btn.ghost:hover { border-color: #cfd9e8; color: var(--ink); }

/* 首屏右侧装饰（纯 CSS，无图片） */
.hero-art { position: relative; height: 320px; }
.ring {
  position: absolute;
  left: 50%;
  top: 50%;
  border-radius: 50%;
  border: 1px solid #dbe6f8;
  transform: translate(-50%, -50%);
}
.ring-1 { width: 300px; height: 300px; }
.ring-2 { width: 216px; height: 216px; border-color: #cddcf6; }
.ring-3 { width: 132px; height: 132px; border-color: #bcd0f3; background: radial-gradient(circle at 50% 40%, #eaf1ff, #ffffff 70%); }
.dot {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 14px; height: 14px;
  margin: -7px 0 0 -7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 8px rgba(37, 99, 235, 0.12), 0 0 0 22px rgba(37, 99, 235, 0.06);
}

/* ── 通用段落 ── */
.section { padding: 88px 0; }
.section.alt { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.sec-head { max-width: 46em; margin-bottom: 40px; }
.sec-head h2 { margin: 0 0 12px; font-size: clamp(24px, 2.6vw, 32px); letter-spacing: -0.01em; }
.sec-sub { margin: 0; color: var(--muted); font-size: 15px; text-wrap: pretty; }

/* ── 业务卡片 ── */
.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.card {
  position: relative;
  padding: 28px 26px 26px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover {
  transform: translateY(-3px);
  border-color: #d7e3f7;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.07);
}
.card .ico {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  margin-bottom: 16px;
  border-radius: 10px;
  background: #eef4ff;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
}
.card h3 { margin: 0 0 8px; font-size: 17px; }
.card p { margin: 0; font-size: 14px; color: var(--muted); }

/* ── 关于 ── */
.about-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 48px;
  align-items: start;
}
.about-inner h2 { margin: 0; font-size: clamp(22px, 2.4vw, 30px); }
.about-body p { margin: 0 0 16px; color: var(--ink-2); font-size: 15px; }

.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}
.facts li { background: #fff; padding: 14px 16px; display: flex; flex-direction: column; gap: 4px; }
.facts span { font-size: 12px; color: var(--muted); }
.facts strong { font-size: 15px; font-weight: 700; }

/* ── 联系 ── */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}
.contact-card {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
}
a.contact-card:hover {
  transform: translateY(-2px);
  border-color: #d7e3f7;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.06);
}
.contact-card .k { font-size: 12px; font-weight: 700; letter-spacing: 0.12em; color: var(--accent); text-transform: uppercase; }
.contact-card strong { font-size: 18px; font-weight: 700; }
.contact-card.addr strong { font-size: 14px; line-height: 1.65; font-weight: 600; }
.contact-card .hint { font-size: 13px; color: var(--muted); }
.contact-card.static { background: var(--surface); }

/* ── 页脚 ── */
.foot { border-top: 1px solid var(--line); background: #fff; }
.foot-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 26px 24px;
  font-size: 13px;
  color: var(--muted);
}
.foot-right { letter-spacing: 0.06em; }

/* ── 响应式 ── */
@media (max-width: 860px) {
  .hero-inner { grid-template-columns: 1fr; padding: 56px 24px 64px; }
  .hero-art { display: none; }
  .about-inner { grid-template-columns: 1fr; gap: 24px; }
  .section { padding: 64px 0; }
  .links { gap: 18px; font-size: 13px; }
  .grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 600px) {
  .grid { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .nav-inner { height: 58px; }
  .links a:not(.cta-link) { display: none; }
  .foot-inner { flex-direction: column; align-items: flex-start; gap: 6px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
  html { scroll-behavior: auto; }
}