@charset "UTF-8";

.co-page {
  min-height: 100vh;
  margin: 0;
  font-family: "PingFang SC", "Helvetica Neue", Roboto, "Microsoft Yahei", Tahoma, sans-serif;
  font-size: 15px;
  color: #1f2937;
  background: #f3f7f6;
}

.co-page a { color: inherit; text-decoration: none; }
.co-page img { max-width: 100%; border: 0; display: block; }

.co-top {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,.94);
  border-bottom: 1px solid #e5eeec;
  backdrop-filter: blur(10px);
}
.co-top-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}
.co-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: #0f766e;
}
.co-brand img { display: block; height: 80px; max-height: 100%; width: auto; }
.co-brand span { display: none; }
.co-nav { display: flex; gap: 6px; }
.co-nav a {
  padding: 8px 14px;
  border-radius: 999px;
  color: #475569;
  font-size: 14px;
}
.co-nav a:hover,
.co-nav a.is-on { background: #0f766e; color: #fff; }
.co-nav-toggle {
  display: none;
  border: 1px solid #d1e3df;
  background: #fff;
  border-radius: 8px;
  padding: 8px 10px;
  line-height: 1;
}

.co-hero {
  background:
    radial-gradient(circle at 12% 20%, rgba(45,212,191,.28), transparent 42%),
    radial-gradient(circle at 88% 0%, rgba(15,118,110,.22), transparent 40%),
    linear-gradient(160deg, #ecfdf8 0%, #f8fafc 55%, #eef6f4 100%);
  border-bottom: 1px solid #e2eeeb;
}
.co-hero-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 56px 20px 64px;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 40px;
  align-items: center;
}
.co-kicker {
  display: inline-block;
  margin-bottom: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: #ccfbf1;
  color: #0f766e;
  font-size: 12px;
  letter-spacing: .04em;
}
.co-hero h1 {
  margin: 0 0 16px;
  font-size: 40px;
  line-height: 1.25;
  color: #134e4a;
}
.co-hero .lead {
  margin: 0 0 28px;
  color: #475569;
  line-height: 1.8;
  font-size: 16px;
}
.co-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.co-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 128px;
  height: 42px;
  padding: 0 18px;
  border-radius: 10px;
  font-size: 14px;
}
.co-btn-main { background: #0f766e; color: #fff; }
.co-btn-ghost { background: #fff; color: #0f766e; border: 1px solid #99f6e4; }
.co-btn-static { cursor: default; pointer-events: none; }
.co-hero-visual {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 18px 40px rgba(15,118,110,.16);
}
.co-hero-visual img { width: 100%; height: 320px; object-fit: cover; }

.co-wrap { max-width: 1120px; margin: 0 auto; padding: 48px 20px; }
.co-section-head { margin-bottom: 24px; }
.co-section-head h2 { margin: 0 0 8px; font-size: 26px; color: #134e4a; }
.co-section-head p { margin: 0; color: #64748b; line-height: 1.7; }

.co-dirs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.co-dir {
  background: #fff;
  border: 1px solid #e5eeec;
  border-radius: 16px;
  overflow: hidden;
  transition: transform .2s ease, box-shadow .2s ease;
}
.co-dir:hover { transform: translateY(-4px); box-shadow: 0 12px 28px rgba(15,118,110,.12); }
.co-dir img { width: 100%; height: 140px; object-fit: cover; }
.co-dir .body { padding: 16px; }
.co-dir h3 { margin: 0 0 8px; font-size: 17px; color: #134e4a; }
.co-dir p { margin: 0 0 12px; color: #64748b; font-size: 13px; line-height: 1.7; }
.co-dir span { color: #0f766e; font-size: 13px; }

.co-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.co-card {
  background: #fff;
  border: 1px solid #e5eeec;
  border-radius: 16px;
  overflow: hidden;
}
.co-card:hover { box-shadow: 0 12px 28px rgba(15,118,110,.1); }
.co-card img { width: 100%; height: 180px; object-fit: cover; }
.co-card .body { padding: 18px; }
.co-card .tag { color: #0f766e; font-size: 12px; }
.co-card h3 { margin: 8px 0; font-size: 18px; color: #134e4a; line-height: 1.45; }
.co-card p { margin: 0; color: #64748b; line-height: 1.75; font-size: 14px; }

.co-about-grid,
.co-split {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 28px;
  align-items: center;
}
.co-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 22px; }
.co-stat { background: #fff; border: 1px solid #e5eeec; border-radius: 12px; padding: 16px; text-align: center; }
.co-stat b { display: block; font-size: 26px; color: #0f766e; }
.co-stat span { color: #64748b; font-size: 12px; }
.co-photo { border-radius: 18px; overflow: hidden; }
.co-photo img { width: 100%; height: 320px; object-fit: cover; }

.co-detail { background: #fff; border: 1px solid #e5eeec; border-radius: 18px; overflow: hidden; }
.co-detail .cover img { width: 100%; height: 320px; object-fit: cover; }
.co-detail .article { padding: 32px 36px 40px; }
.co-detail h1 { margin: 0 0 12px; font-size: 30px; color: #134e4a; }
.co-detail .meta { margin: 0 0 22px; color: #94a3b8; font-size: 13px; }
.co-detail .article p { margin: 0 0 16px; line-height: 1.9; color: #475569; }
.co-crumb { margin-bottom: 16px; color: #64748b; font-size: 13px; }
.co-crumb a { color: #0f766e; }

.co-contact { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.co-box { background: #fff; border: 1px solid #e5eeec; border-radius: 16px; padding: 22px; }
.co-box h3 { margin: 0 0 10px; color: #134e4a; }
.co-box p { margin: 0 0 8px; color: #64748b; line-height: 1.75; }

.co-cta {
  margin: 8px 20px 48px;
  max-width: 1120px;
  margin-left: auto;
  margin-right: auto;
  background: #0f766e;
  color: #fff;
  border-radius: 18px;
  padding: 28px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.co-cta p { margin: 6px 0 0; color: #ccfbf1; }
.co-cta .co-btn-main { background: #fff; color: #0f766e; }

.co-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.co-step {
  background: #fff;
  border: 1px solid #e5eeec;
  border-radius: 16px;
  padding: 20px 18px 22px;
}
.co-step em {
  display: inline-block;
  margin-bottom: 10px;
  color: #0f766e;
  font-style: normal;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: .06em;
}
.co-step h3 { margin: 0 0 8px; font-size: 17px; color: #134e4a; }
.co-step p { margin: 0; color: #64748b; line-height: 1.75; font-size: 14px; }

.co-foot {
  border-top: 1px solid #e5eeec;
  background: #fff;
  padding: 28px 20px 36px;
  text-align: center;
  color: #94a3b8;
  font-size: 12px;
  line-height: 1.9;
}
.co-foot a { color: #94a3b8; text-decoration: underline; }
.co-foot a.foot-sitemap, .co-foot a[href="/sitemaps.xml"] {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.landing-seo-feed {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 900px) {
  .co-nav-toggle { display: block; }
  .co-nav {
    display: none;
    position: absolute;
    left: 12px;
    right: 12px;
    top: 80px;
    background: #fff;
    border: 1px solid #e5eeec;
    border-radius: 12px;
    padding: 8px;
    flex-direction: column;
  }
  .co-nav.is-open { display: flex; }
  .co-hero-inner,
  .co-about-grid,
  .co-split,
  .co-contact,
  .co-cta { grid-template-columns: 1fr; display: block; }
  .co-dirs,
  .co-cards,
  .co-steps { grid-template-columns: 1fr; }
  .co-hero h1 { font-size: 28px; }
  .co-hero-visual { margin-top: 24px; }
  .co-hero-visual img,
  .co-detail .cover img,
  .co-photo img { height: 200px; }
  .co-detail .article { padding: 22px 18px 28px; }
  .co-cta { margin: 0 16px 32px; }
  .co-stats { grid-template-columns: 1fr; }
}