/* ══════════════════════════════════════════════════
   四时织锦·舟游四海 — footer.css  ·  升级版
   ══════════════════════════════════════════════════ */

.footer {
  position: relative;
  background: var(--green-deep);
  color: rgba(255,255,255,.75);
  padding: 80px 0 0;
  overflow: hidden;
}
/* 顶部金色分割线 */
.footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(to right, transparent, var(--gold), var(--green-light), transparent);
  z-index: 2;
}
/* 底部渐变装饰字 */
.footer-deco {
  position: absolute;
  bottom: -0.05em; right: -0.05em;
  font-family: 'Ma Shan Zheng', serif;
  font-size: clamp(180px, 22vw, 320px);
  color: rgba(255,255,255,.018);
  pointer-events: none;
  line-height: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,.07);
  position: relative; z-index: 1;
}

/* ─── 品牌区 ─── */
.footer-logo {
  font-family: 'Noto Serif SC', serif;
  font-size: 1.3rem; font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
  letter-spacing: .06em;
}
.footer-brand p { font-size: .88rem; line-height: 1.75; margin-bottom: 20px; color: rgba(255,255,255,.55); }
.footer-honors { display: flex; flex-wrap: wrap; gap: 8px; }
.footer-honors span {
  font-size: .73rem;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.1);
  padding: 4px 12px;
  border-radius: var(--radius-xl);
  color: rgba(255,255,255,.6);
  transition: background var(--transition), color var(--transition);
}
.footer-honors span:hover {
  background: rgba(200,134,10,.15);
  border-color: rgba(200,134,10,.3);
  color: var(--gold-light);
}

/* ─── 导航列 ─── */
.footer-nav h4,
.footer-info h4 {
  font-family: 'Noto Serif SC', serif;
  font-size: .92rem;
  color: var(--white);
  margin-bottom: 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,.1);
  letter-spacing: .05em;
}
.footer-nav ul { display: flex; flex-direction: column; gap: 10px; }
.footer-nav a {
  font-size: .86rem;
  color: rgba(255,255,255,.55);
  transition: color var(--transition), padding-left var(--transition);
  display: inline-block;
}
.footer-nav a:hover { color: var(--gold-light); padding-left: 6px; }

/* ─── 出发指南 ─── */
.footer-info p {
  font-size: .86rem;
  margin-bottom: 9px;
  color: rgba(255,255,255,.55);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ─── 底部版权 ─── */
.footer-bottom {
  text-align: center;
  padding: 24px 0;
  font-size: .78rem;
  color: rgba(255,255,255,.28);
  position: relative; z-index: 1;
  letter-spacing: .04em;
}

/* ─── 返回顶部 ─── */
.back-top {
  position: fixed;
  bottom: 32px; right: 32px;
  z-index: 500;
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--green-mid), var(--green-light));
  color: var(--white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(45,90,39,.45);
  opacity: 0; pointer-events: none;
  transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
}
.back-top.visible { opacity: 1; pointer-events: auto; }
.back-top:hover {
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  transform: translateY(-5px);
  box-shadow: 0 10px 32px rgba(200,134,10,.45);
}