/* ============================================================
   style-sitemap.css — 网站地图（独立布局：圆点分类导航）
   OMICA 网站建设 · 极简卫浴风
   ============================================================ */

/* ---------- Hero：大圆 + 侧环 ---------- */
.sm-hero {
  position: relative;
  background: var(--white);
  padding: 178px 0 70px;
  overflow: hidden;
  text-align: center;
}
.sm-hero::before {
  content: "";
  position: absolute;
  left: 50%; top: -260px;
  transform: translateX(-50%);
  width: 760px; height: 760px;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, rgba(27,27,27,.055), transparent 64%);
  pointer-events: none;
}
.sm-hero::after {
  content: "";
  position: absolute;
  right: 8%; top: 60px;
  width: 220px; height: 220px;
  border-radius: 50%;
  border: 1px dashed var(--gray-300);
  animation: smSpin 46s linear infinite;
  pointer-events: none;
}
@keyframes smSpin { to { transform: rotate(360deg); } }
.sm-hero-inner { position: relative; z-index: 2; }
.sm-hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: .34em;
  color: var(--gray-600);
  margin-bottom: 22px;
}
.sm-hero-kicker::before, .sm-hero-kicker::after { content: ""; width: 30px; height: 1px; background: var(--gray-400); }
.sm-hero h1 { font-size: clamp(30px, 4vw, 46px); font-weight: 800; color: var(--ink); line-height: 1.28; }
.sm-hero-desc { margin: 20px auto 0; font-size: 15.5px; color: var(--ink-mute); line-height: 1.9; max-width: 640px; }

/* ---------- 分类链接 ---------- */
.sm-sec { background: var(--gray-50); overflow: hidden; position: relative; }
.sm-sec::before {
  content: "";
  position: absolute;
  right: -160px; bottom: -160px;
  width: 420px; height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(27,27,27,.05), transparent 62%);
  pointer-events: none;
}
.sm-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; position: relative; z-index: 2; }
.sm-col {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 34px 32px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}
.sm-col:hover { border-color: var(--gray-400); box-shadow: var(--shadow-sm); }
.sm-col::before {
  content: "";
  position: absolute;
  right: -60px; top: -60px;
  width: 150px; height: 150px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(27,27,27,.045), transparent 66%);
}
.sm-col-head { display: flex; align-items: center; gap: 14px; margin-bottom: 22px; position: relative; }
.sm-col-ico {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--ink);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.sm-col-head h2 { font-size: 19px; color: var(--ink); font-weight: 800; }
.sm-col-head p { font-size: 12.5px; color: var(--gray-500); margin-top: 2px; }
.sm-links { display: grid; grid-template-columns: 1fr 1fr; gap: 8px 18px; position: relative; }
.sm-links a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--ink-soft);
  transition: all var(--transition);
}
.sm-links a::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--gray-400);
  flex-shrink: 0;
  transition: all var(--transition);
}
.sm-links a:hover { background: var(--gray-50); color: var(--ink); }
.sm-links a:hover::before { background: var(--ink); transform: scale(1.4); }

/* ---------- 快捷入口条 ---------- */
.sm-quick { background: var(--white); position: relative; overflow: hidden; }
.sm-quick::after {
  content: "";
  position: absolute;
  left: -140px; top: -140px;
  width: 380px; height: 380px;
  border-radius: 50%;
  border: 1px dashed var(--gray-300);
  pointer-events: none;
}
.sm-quick-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; position: relative; z-index: 2; }
.sm-quick-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 12px;
  padding: 30px 18px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  background: var(--gray-50);
  transition: all var(--transition);
}
.sm-quick-card:hover { border-color: var(--ink); transform: translateY(-5px); box-shadow: var(--shadow-sm); }
.sm-quick-card svg { color: var(--ink); }
.sm-quick-card b { font-size: 15px; color: var(--ink); font-weight: 700; }
.sm-quick-card span { font-size: 12.5px; color: var(--gray-500); }

/* ---------- CTA（本页专属） ---------- */
.sm-sec-cta { background: var(--ink); color: #fff; overflow: hidden; }
.sm-sec-cta::before {
  content: "";
  position: absolute;
  left: -140px; bottom: -140px;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.08), transparent 64%);
  pointer-events: none;
}
.sm-sec-cta::after {
  content: "";
  position: absolute;
  right: 8%; top: -140px;
  width: 300px; height: 300px;
  border-radius: 50%;
  border: 1px dashed rgba(255,255,255,.15);
  pointer-events: none;
}
.sm-sec-cta .cta-inner p { color: rgba(255,255,255,.72); }
.sm-sec-cta .cta-contact { color: rgba(255,255,255,.85); }
.sm-sec-cta .cta-contact a { color: #fff; }
.sm-sec-cta .cta-contact a:hover { text-decoration: underline; text-underline-offset: 5px; }
.btn-ghost-light { color: #fff; border: 1px solid rgba(255,255,255,.6); background: transparent; }
.btn-ghost-light:hover { background: #fff; color: var(--ink); box-shadow: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .sm-hero { padding-top: 148px; }
  .sm-grid { grid-template-columns: 1fr; }
  .sm-quick-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .sm-hero { padding: 132px 0 52px; }
  .sm-links { grid-template-columns: 1fr; }
  .sm-quick-grid { grid-template-columns: 1fr; }
}